Merge branch 'core/urgent' into core/futexes

Merge reason: this branch was on an pre -rc1 base, merge it up to -rc6+
              to get the latest upstream fixes.

Conflicts:
	kernel/futex.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

29 files changed, 11161 insertions, 0 deletions

diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
new file mode 100644
index 00000000000..01cdb36fc58
--- /dev/null
+++ b/scripts/dtc/Makefile
@@ -0,0 +1,54 @@
+# scripts/dtc makefile
+
+hostprogs-y	:= dtc
+always		:= $(hostprogs-y)
+
+dtc-objs	:= dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
+		   srcpos.o checks.o
+dtc-objs	+= dtc-lexer.lex.o dtc-parser.tab.o
+
+# Source files need to get at the userspace version of libfdt_env.h to compile
+
+HOSTCFLAGS_DTC := -I$(src) -I$(src)/libfdt
+
+HOSTCFLAGS_checks.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_data.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_dtc.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_flattree.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_fstree.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_livetree.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_srcpos.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_treesource.o := $(HOSTCFLAGS_DTC)
+
+HOSTCFLAGS_dtc-lexer.lex.o := $(HOSTCFLAGS_DTC)
+HOSTCFLAGS_dtc-parser.tab.o := $(HOSTCFLAGS_DTC)
+
+# dependencies on generated files need to be listed explicitly
+$(obj)/dtc-parser.tab.o: $(obj)/dtc-parser.tab.c $(obj)/dtc-parser.tab.h
+$(obj)/dtc-lexer.lex.o:  $(obj)/dtc-lexer.lex.c $(obj)/dtc-parser.tab.h
+
+targets += dtc-parser.tab.c dtc-lexer.lex.c
+
+clean-files += dtc-parser.tab.h
+
+# GENERATE_PARSER := 1		# Uncomment to rebuild flex/bison output
+
+ifdef GENERATE_PARSER
+
+BISON = bison
+FLEX = flex
+
+quiet_cmd_bison = BISON   $@
+      cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
+quiet_cmd_flex = FLEX    $@
+      cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
+
+$(obj)/dtc-parser.tab.c: $(src)/dtc-parser.y FORCE
+        $(call if_changed,bison)
+
+$(obj)/dtc-parser.tab.h: $(obj)/dtc-parser.tab.c
+
+$(obj)/dtc-lexer.lex.c: $(src)/dtc-lexer.l FORCE
+        $(call if_changed,flex)
+
+endif
diff --git a/scripts/dtc/Makefile.dtc b/scripts/dtc/Makefile.dtc
new file mode 100644
index 00000000000..6ddf9ecac66
--- /dev/null
+++ b/scripts/dtc/Makefile.dtc
@@ -0,0 +1,9 @@
+# Makefile.dtc
+#
+# This is not a complete Makefile of itself.  Instead, it is designed to
+# be easily embeddable into other systems of Makefiles.
+#
+DTC_SRCS = dtc.c flattree.c fstree.c data.c livetree.c treesource.c srcpos.c \
+	checks.c
+DTC_GEN_SRCS = dtc-lexer.lex.c dtc-parser.tab.c
+DTC_OBJS = $(DTC_SRCS:%.c=%.o) $(DTC_GEN_SRCS:%.c=%.o)
diff --git a/scripts/dtc/checks.c b/scripts/dtc/checks.c
new file mode 100644
index 00000000000..95485796f25
--- /dev/null
+++ b/scripts/dtc/checks.c
@@ -0,0 +1,587 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2007.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+#include "dtc.h"
+
+#ifdef TRACE_CHECKS
+#define TRACE(c, ...) \
+	do { \
+		fprintf(stderr, "=== %s: ", (c)->name); \
+		fprintf(stderr, __VA_ARGS__); \
+		fprintf(stderr, "\n"); \
+	} while (0)
+#else
+#define TRACE(c, fmt, ...)	do { } while (0)
+#endif
+
+enum checklevel {
+	IGNORE = 0,
+	WARN = 1,
+	ERROR = 2,
+};
+
+enum checkstatus {
+	UNCHECKED = 0,
+	PREREQ,
+	PASSED,
+	FAILED,
+};
+
+struct check;
+
+typedef void (*tree_check_fn)(struct check *c, struct node *dt);
+typedef void (*node_check_fn)(struct check *c, struct node *dt, struct node *node);
+typedef void (*prop_check_fn)(struct check *c, struct node *dt,
+			      struct node *node, struct property *prop);
+
+struct check {
+	const char *name;
+	tree_check_fn tree_fn;
+	node_check_fn node_fn;
+	prop_check_fn prop_fn;
+	void *data;
+	enum checklevel level;
+	enum checkstatus status;
+	int inprogress;
+	int num_prereqs;
+	struct check **prereq;
+};
+
+#define CHECK(nm, tfn, nfn, pfn, d, lvl, ...) \
+	static struct check *nm##_prereqs[] = { __VA_ARGS__ }; \
+	static struct check nm = { \
+		.name = #nm, \
+		.tree_fn = (tfn), \
+		.node_fn = (nfn), \
+		.prop_fn = (pfn), \
+		.data = (d), \
+		.level = (lvl), \
+		.status = UNCHECKED, \
+		.num_prereqs = ARRAY_SIZE(nm##_prereqs), \
+		.prereq = nm##_prereqs, \
+	};
+
+#define TREE_CHECK(nm, d, lvl, ...) \
+	CHECK(nm, check_##nm, NULL, NULL, d, lvl, __VA_ARGS__)
+#define NODE_CHECK(nm, d, lvl, ...) \
+	CHECK(nm, NULL, check_##nm, NULL, d, lvl, __VA_ARGS__)
+#define PROP_CHECK(nm, d, lvl, ...) \
+	CHECK(nm, NULL, NULL, check_##nm, d, lvl, __VA_ARGS__)
+#define BATCH_CHECK(nm, lvl, ...) \
+	CHECK(nm, NULL, NULL, NULL, NULL, lvl, __VA_ARGS__)
+
+#ifdef __GNUC__
+static inline void check_msg(struct check *c, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
+#endif
+static inline void check_msg(struct check *c, const char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+
+	if ((c->level < WARN) || (c->level <= quiet))
+		return; /* Suppress message */
+
+	fprintf(stderr, "%s (%s): ",
+		(c->level == ERROR) ? "ERROR" : "Warning", c->name);
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, "\n");
+}
+
+#define FAIL(c, ...) \
+	do { \
+		TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__); \
+		(c)->status = FAILED; \
+		check_msg((c), __VA_ARGS__); \
+	} while (0)
+
+static void check_nodes_props(struct check *c, struct node *dt, struct node *node)
+{
+	struct node *child;
+	struct property *prop;
+
+	TRACE(c, "%s", node->fullpath);
+	if (c->node_fn)
+		c->node_fn(c, dt, node);
+
+	if (c->prop_fn)
+		for_each_property(node, prop) {
+			TRACE(c, "%s\t'%s'", node->fullpath, prop->name);
+			c->prop_fn(c, dt, node, prop);
+		}
+
+	for_each_child(node, child)
+		check_nodes_props(c, dt, child);
+}
+
+static int run_check(struct check *c, struct node *dt)
+{
+	int error = 0;
+	int i;
+
+	assert(!c->inprogress);
+
+	if (c->status != UNCHECKED)
+		goto out;
+
+	c->inprogress = 1;
+
+	for (i = 0; i < c->num_prereqs; i++) {
+		struct check *prq = c->prereq[i];
+		error |= run_check(prq, dt);
+		if (prq->status != PASSED) {
+			c->status = PREREQ;
+			check_msg(c, "Failed prerequisite '%s'",
+				  c->prereq[i]->name);
+		}
+	}
+
+	if (c->status != UNCHECKED)
+		goto out;
+
+	if (c->node_fn || c->prop_fn)
+		check_nodes_props(c, dt, dt);
+
+	if (c->tree_fn)
+		c->tree_fn(c, dt);
+	if (c->status == UNCHECKED)
+		c->status = PASSED;
+
+	TRACE(c, "\tCompleted, status %d", c->status);
+
+out:
+	c->inprogress = 0;
+	if ((c->status != PASSED) && (c->level == ERROR))
+		error = 1;
+	return error;
+}
+
+/*
+ * Utility check functions
+ */
+
+static void check_is_string(struct check *c, struct node *root,
+			    struct node *node)
+{
+	struct property *prop;
+	char *propname = c->data;
+
+	prop = get_property(node, propname);
+	if (!prop)
+		return; /* Not present, assumed ok */
+
+	if (!data_is_one_string(prop->val))
+		FAIL(c, "\"%s\" property in %s is not a string",
+		     propname, node->fullpath);
+}
+#define CHECK_IS_STRING(nm, propname, lvl) \
+	CHECK(nm, NULL, check_is_string, NULL, (propname), (lvl))
+
+static void check_is_cell(struct check *c, struct node *root,
+			  struct node *node)
+{
+	struct property *prop;
+	char *propname = c->data;
+
+	prop = get_property(node, propname);
+	if (!prop)
+		return; /* Not present, assumed ok */
+
+	if (prop->val.len != sizeof(cell_t))
+		FAIL(c, "\"%s\" property in %s is not a single cell",
+		     propname, node->fullpath);
+}
+#define CHECK_IS_CELL(nm, propname, lvl) \
+	CHECK(nm, NULL, check_is_cell, NULL, (propname), (lvl))
+
+/*
+ * Structural check functions
+ */
+
+static void check_duplicate_node_names(struct check *c, struct node *dt,
+				       struct node *node)
+{
+	struct node *child, *child2;
+
+	for_each_child(node, child)
+		for (child2 = child->next_sibling;
+		     child2;
+		     child2 = child2->next_sibling)
+			if (streq(child->name, child2->name))
+				FAIL(c, "Duplicate node name %s",
+				     child->fullpath);
+}
+NODE_CHECK(duplicate_node_names, NULL, ERROR);
+
+static void check_duplicate_property_names(struct check *c, struct node *dt,
+					   struct node *node)
+{
+	struct property *prop, *prop2;
+
+	for_each_property(node, prop)
+		for (prop2 = prop->next; prop2; prop2 = prop2->next)
+			if (streq(prop->name, prop2->name))
+				FAIL(c, "Duplicate property name %s in %s",
+				     prop->name, node->fullpath);
+}
+NODE_CHECK(duplicate_property_names, NULL, ERROR);
+
+#define LOWERCASE	"abcdefghijklmnopqrstuvwxyz"
+#define UPPERCASE	"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+#define DIGITS		"0123456789"
+#define PROPNODECHARS	LOWERCASE UPPERCASE DIGITS ",._+*#?-"
+
+static void check_node_name_chars(struct check *c, struct node *dt,
+				  struct node *node)
+{
+	int n = strspn(node->name, c->data);
+
+	if (n < strlen(node->name))
+		FAIL(c, "Bad character '%c' in node %s",
+		     node->name[n], node->fullpath);
+}
+NODE_CHECK(node_name_chars, PROPNODECHARS "@", ERROR);
+
+static void check_node_name_format(struct check *c, struct node *dt,
+				   struct node *node)
+{
+	if (strchr(get_unitname(node), '@'))
+		FAIL(c, "Node %s has multiple '@' characters in name",
+		     node->fullpath);
+}
+NODE_CHECK(node_name_format, NULL, ERROR, &node_name_chars);
+
+static void check_property_name_chars(struct check *c, struct node *dt,
+				      struct node *node, struct property *prop)
+{
+	int n = strspn(prop->name, c->data);
+
+	if (n < strlen(prop->name))
+		FAIL(c, "Bad character '%c' in property name \"%s\", node %s",
+		     prop->name[n], prop->name, node->fullpath);
+}
+PROP_CHECK(property_name_chars, PROPNODECHARS, ERROR);
+
+static void check_explicit_phandles(struct check *c, struct node *root,
+					  struct node *node)
+{
+	struct property *prop;
+	struct node *other;
+	cell_t phandle;
+
+	prop = get_property(node, "linux,phandle");
+	if (! prop)
+		return; /* No phandle, that's fine */
+
+	if (prop->val.len != sizeof(cell_t)) {
+		FAIL(c, "%s has bad length (%d) linux,phandle property",
+		     node->fullpath, prop->val.len);
+		return;
+	}
+
+	phandle = propval_cell(prop);
+	if ((phandle == 0) || (phandle == -1)) {
+		FAIL(c, "%s has invalid linux,phandle value 0x%x",
+		     node->fullpath, phandle);
+		return;
+	}
+
+	other = get_node_by_phandle(root, phandle);
+	if (other) {
+		FAIL(c, "%s has duplicated phandle 0x%x (seen before at %s)",
+		     node->fullpath, phandle, other->fullpath);
+		return;
+	}
+
+	node->phandle = phandle;
+}
+NODE_CHECK(explicit_phandles, NULL, ERROR);
+
+static void check_name_properties(struct check *c, struct node *root,
+				  struct node *node)
+{
+	struct property **pp, *prop = NULL;
+
+	for (pp = &node->proplist; *pp; pp = &((*pp)->next))
+		if (streq((*pp)->name, "name")) {
+			prop = *pp;
+			break;
+		}
+
+	if (!prop)
+		return; /* No name property, that's fine */
+
+	if ((prop->val.len != node->basenamelen+1)
+	    || (memcmp(prop->val.val, node->name, node->basenamelen) != 0)) {
+		FAIL(c, "\"name\" property in %s is incorrect (\"%s\" instead"
+		     " of base node name)", node->fullpath, prop->val.val);
+	} else {
+		/* The name property is correct, and therefore redundant.
+		 * Delete it */
+		*pp = prop->next;
+		free(prop->name);
+		data_free(prop->val);
+		free(prop);
+	}
+}
+CHECK_IS_STRING(name_is_string, "name", ERROR);
+NODE_CHECK(name_properties, NULL, ERROR, &name_is_string);
+
+/*
+ * Reference fixup functions
+ */
+
+static void fixup_phandle_references(struct check *c, struct node *dt,
+				     struct node *node, struct property *prop)
+{
+	struct marker *m = prop->val.markers;
+	struct node *refnode;
+	cell_t phandle;
+
+	for_each_marker_of_type(m, REF_PHANDLE) {
+		assert(m->offset + sizeof(cell_t) <= prop->val.len);
+
+		refnode = get_node_by_ref(dt, m->ref);
+		if (! refnode) {
+			FAIL(c, "Reference to non-existent node or label \"%s\"\n",
+			     m->ref);
+			continue;
+		}
+
+		phandle = get_node_phandle(dt, refnode);
+		*((cell_t *)(prop->val.val + m->offset)) = cpu_to_fdt32(phandle);
+	}
+}
+CHECK(phandle_references, NULL, NULL, fixup_phandle_references, NULL, ERROR,
+      &duplicate_node_names, &explicit_phandles);
+
+static void fixup_path_references(struct check *c, struct node *dt,
+				  struct node *node, struct property *prop)
+{
+	struct marker *m = prop->val.markers;
+	struct node *refnode;
+	char *path;
+
+	for_each_marker_of_type(m, REF_PATH) {
+		assert(m->offset <= prop->val.len);
+
+		refnode = get_node_by_ref(dt, m->ref);
+		if (!refnode) {
+			FAIL(c, "Reference to non-existent node or label \"%s\"\n",
+			     m->ref);
+			continue;
+		}
+
+		path = refnode->fullpath;
+		prop->val = data_insert_at_marker(prop->val, m, path,
+						  strlen(path) + 1);
+	}
+}
+CHECK(path_references, NULL, NULL, fixup_path_references, NULL, ERROR,
+      &duplicate_node_names);
+
+/*
+ * Semantic checks
+ */
+CHECK_IS_CELL(address_cells_is_cell, "#address-cells", WARN);
+CHECK_IS_CELL(size_cells_is_cell, "#size-cells", WARN);
+CHECK_IS_CELL(interrupt_cells_is_cell, "#interrupt-cells", WARN);
+
+CHECK_IS_STRING(device_type_is_string, "device_type", WARN);
+CHECK_IS_STRING(model_is_string, "model", WARN);
+CHECK_IS_STRING(status_is_string, "status", WARN);
+
+static void fixup_addr_size_cells(struct check *c, struct node *dt,
+				  struct node *node)
+{
+	struct property *prop;
+
+	node->addr_cells = -1;
+	node->size_cells = -1;
+
+	prop = get_property(node, "#address-cells");
+	if (prop)
+		node->addr_cells = propval_cell(prop);
+
+	prop = get_property(node, "#size-cells");
+	if (prop)
+		node->size_cells = propval_cell(prop);
+}
+CHECK(addr_size_cells, NULL, fixup_addr_size_cells, NULL, NULL, WARN,
+      &address_cells_is_cell, &size_cells_is_cell);
+
+#define node_addr_cells(n) \
+	(((n)->addr_cells == -1) ? 2 : (n)->addr_cells)
+#define node_size_cells(n) \
+	(((n)->size_cells == -1) ? 1 : (n)->size_cells)
+
+static void check_reg_format(struct check *c, struct node *dt,
+			     struct node *node)
+{
+	struct property *prop;
+	int addr_cells, size_cells, entrylen;
+
+	prop = get_property(node, "reg");
+	if (!prop)
+		return; /* No "reg", that's fine */
+
+	if (!node->parent) {
+		FAIL(c, "Root node has a \"reg\" property");
+		return;
+	}
+
+	if (prop->val.len == 0)
+		FAIL(c, "\"reg\" property in %s is empty", node->fullpath);
+
+	addr_cells = node_addr_cells(node->parent);
+	size_cells = node_size_cells(node->parent);
+	entrylen = (addr_cells + size_cells) * sizeof(cell_t);
+
+	if ((prop->val.len % entrylen) != 0)
+		FAIL(c, "\"reg\" property in %s has invalid length (%d bytes) "
+		     "(#address-cells == %d, #size-cells == %d)",
+		     node->fullpath, prop->val.len, addr_cells, size_cells);
+}
+NODE_CHECK(reg_format, NULL, WARN, &addr_size_cells);
+
+static void check_ranges_format(struct check *c, struct node *dt,
+				struct node *node)
+{
+	struct property *prop;
+	int c_addr_cells, p_addr_cells, c_size_cells, p_size_cells, entrylen;
+
+	prop = get_property(node, "ranges");
+	if (!prop)
+		return;
+
+	if (!node->parent) {
+		FAIL(c, "Root node has a \"ranges\" property");
+		return;
+	}
+
+	p_addr_cells = node_addr_cells(node->parent);
+	p_size_cells = node_size_cells(node->parent);
+	c_addr_cells = node_addr_cells(node);
+	c_size_cells = node_size_cells(node);
+	entrylen = (p_addr_cells + c_addr_cells + c_size_cells) * sizeof(cell_t);
+
+	if (prop->val.len == 0) {
+		if (p_addr_cells != c_addr_cells)
+			FAIL(c, "%s has empty \"ranges\" property but its "
+			     "#address-cells (%d) differs from %s (%d)",
+			     node->fullpath, c_addr_cells, node->parent->fullpath,
+			     p_addr_cells);
+		if (p_size_cells != c_size_cells)
+			FAIL(c, "%s has empty \"ranges\" property but its "
+			     "#size-cells (%d) differs from %s (%d)",
+			     node->fullpath, c_size_cells, node->parent->fullpath,
+			     p_size_cells);
+	} else if ((prop->val.len % entrylen) != 0) {
+		FAIL(c, "\"ranges\" property in %s has invalid length (%d bytes) "
+		     "(parent #address-cells == %d, child #address-cells == %d, "
+		     "#size-cells == %d)", node->fullpath, prop->val.len,
+		     p_addr_cells, c_addr_cells, c_size_cells);
+	}
+}
+NODE_CHECK(ranges_format, NULL, WARN, &addr_size_cells);
+
+/*
+ * Style checks
+ */
+static void check_avoid_default_addr_size(struct check *c, struct node *dt,
+					  struct node *node)
+{
+	struct property *reg, *ranges;
+
+	if (!node->parent)
+		return; /* Ignore root node */
+
+	reg = get_property(node, "reg");
+	ranges = get_property(node, "ranges");
+
+	if (!reg && !ranges)
+		return;
+
+	if ((node->parent->addr_cells == -1))
+		FAIL(c, "Relying on default #address-cells value for %s",
+		     node->fullpath);
+
+	if ((node->parent->size_cells == -1))
+		FAIL(c, "Relying on default #size-cells value for %s",
+		     node->fullpath);
+}
+NODE_CHECK(avoid_default_addr_size, NULL, WARN, &addr_size_cells);
+
+static void check_obsolete_chosen_interrupt_controller(struct check *c,
+						       struct node *dt)
+{
+	struct node *chosen;
+	struct property *prop;
+
+	chosen = get_node_by_path(dt, "/chosen");
+	if (!chosen)
+		return;
+
+	prop = get_property(chosen, "interrupt-controller");
+	if (prop)
+		FAIL(c, "/chosen has obsolete \"interrupt-controller\" "
+		     "property");
+}
+TREE_CHECK(obsolete_chosen_interrupt_controller, NULL, WARN);
+
+static struct check *check_table[] = {
+	&duplicate_node_names, &duplicate_property_names,
+	&node_name_chars, &node_name_format, &property_name_chars,
+	&name_is_string, &name_properties,
+	&explicit_phandles,
+	&phandle_references, &path_references,
+
+	&address_cells_is_cell, &size_cells_is_cell, &interrupt_cells_is_cell,
+	&device_type_is_string, &model_is_string, &status_is_string,
+
+	&addr_size_cells, &reg_format, &ranges_format,
+
+	&avoid_default_addr_size,
+	&obsolete_chosen_interrupt_controller,
+};
+
+void process_checks(int force, struct boot_info *bi)
+{
+	struct node *dt = bi->dt;
+	int i;
+	int error = 0;
+
+	for (i = 0; i < ARRAY_SIZE(check_table); i++) {
+		struct check *c = check_table[i];
+
+		if (c->level != IGNORE)
+			error = error || run_check(c, dt);
+	}
+
+	if (error) {
+		if (!force) {
+			fprintf(stderr, "ERROR: Input tree has errors, aborting "
+				"(use -f to force output)\n");
+			exit(2);
+		} else if (quiet < 3) {
+			fprintf(stderr, "Warning: Input tree has errors, "
+				"output forced\n");
+		}
+	}
+}
diff --git a/scripts/dtc/data.c b/scripts/dtc/data.c
new file mode 100644
index 00000000000..dd2e3d39d4c
--- /dev/null
+++ b/scripts/dtc/data.c
@@ -0,0 +1,321 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+#include "dtc.h"
+
+void data_free(struct data d)
+{
+	struct marker *m, *nm;
+
+	m = d.markers;
+	while (m) {
+		nm = m->next;
+		free(m->ref);
+		free(m);
+		m = nm;
+	}
+
+	if (d.val)
+		free(d.val);
+}
+
+struct data data_grow_for(struct data d, int xlen)
+{
+	struct data nd;
+	int newsize;
+
+	if (xlen == 0)
+		return d;
+
+	nd = d;
+
+	newsize = xlen;
+
+	while ((d.len + xlen) > newsize)
+		newsize *= 2;
+
+	nd.val = xrealloc(d.val, newsize);
+
+	return nd;
+}
+
+struct data data_copy_mem(const char *mem, int len)
+{
+	struct data d;
+
+	d = data_grow_for(empty_data, len);
+
+	d.len = len;
+	memcpy(d.val, mem, len);
+
+	return d;
+}
+
+static char get_oct_char(const char *s, int *i)
+{
+	char x[4];
+	char *endx;
+	long val;
+
+	x[3] = '\0';
+	strncpy(x, s + *i, 3);
+
+	val = strtol(x, &endx, 8);
+
+	assert(endx > x);
+
+	(*i) += endx - x;
+	return val;
+}
+
+static char get_hex_char(const char *s, int *i)
+{
+	char x[3];
+	char *endx;
+	long val;
+
+	x[2] = '\0';
+	strncpy(x, s + *i, 2);
+
+	val = strtol(x, &endx, 16);
+	if (!(endx  > x))
+		die("\\x used with no following hex digits\n");
+
+	(*i) += endx - x;
+	return val;
+}
+
+struct data data_copy_escape_string(const char *s, int len)
+{
+	int i = 0;
+	struct data d;
+	char *q;
+
+	d = data_grow_for(empty_data, strlen(s)+1);
+
+	q = d.val;
+	while (i < len) {
+		char c = s[i++];
+
+		if (c != '\\') {
+			q[d.len++] = c;
+			continue;
+		}
+
+		c = s[i++];
+		assert(c);
+		switch (c) {
+		case 'a':
+			q[d.len++] = '\a';
+			break;
+		case 'b':
+			q[d.len++] = '\b';
+			break;
+		case 't':
+			q[d.len++] = '\t';
+			break;
+		case 'n':
+			q[d.len++] = '\n';
+			break;
+		case 'v':
+			q[d.len++] = '\v';
+			break;
+		case 'f':
+			q[d.len++] = '\f';
+			break;
+		case 'r':
+			q[d.len++] = '\r';
+			break;
+		case '0':
+		case '1':
+		case '2':
+		case '3':
+		case '4':
+		case '5':
+		case '6':
+		case '7':
+			i--; /* need to re-read the first digit as
+			      * part of the octal value */
+			q[d.len++] = get_oct_char(s, &i);
+			break;
+		case 'x':
+			q[d.len++] = get_hex_char(s, &i);
+			break;
+		default:
+			q[d.len++] = c;
+		}
+	}
+
+	q[d.len++] = '\0';
+	return d;
+}
+
+struct data data_copy_file(FILE *f, size_t maxlen)
+{
+	struct data d = empty_data;
+
+	while (!feof(f) && (d.len < maxlen)) {
+		size_t chunksize, ret;
+
+		if (maxlen == -1)
+			chunksize = 4096;
+		else
+			chunksize = maxlen - d.len;
+
+		d = data_grow_for(d, chunksize);
+		ret = fread(d.val + d.len, 1, chunksize, f);
+
+		if (ferror(f))
+			die("Error reading file into data: %s", strerror(errno));
+
+		if (d.len + ret < d.len)
+			die("Overflow reading file into data\n");
+
+		d.len += ret;
+	}
+
+	return d;
+}
+
+struct data data_append_data(struct data d, const void *p, int len)
+{
+	d = data_grow_for(d, len);
+	memcpy(d.val + d.len, p, len);
+	d.len += len;
+	return d;
+}
+
+struct data data_insert_at_marker(struct data d, struct marker *m,
+				  const void *p, int len)
+{
+	d = data_grow_for(d, len);
+	memmove(d.val + m->offset + len, d.val + m->offset, d.len - m->offset);
+	memcpy(d.val + m->offset, p, len);
+	d.len += len;
+
+	/* Adjust all markers after the one we're inserting at */
+	m = m->next;
+	for_each_marker(m)
+		m->offset += len;
+	return d;
+}
+
+struct data data_append_markers(struct data d, struct marker *m)
+{
+	struct marker **mp = &d.markers;
+
+	/* Find the end of the markerlist */
+	while (*mp)
+		mp = &((*mp)->next);
+	*mp = m;
+	return d;
+}
+
+struct data data_merge(struct data d1, struct data d2)
+{
+	struct data d;
+	struct marker *m2 = d2.markers;
+
+	d = data_append_markers(data_append_data(d1, d2.val, d2.len), m2);
+
+	/* Adjust for the length of d1 */
+	for_each_marker(m2)
+		m2->offset += d1.len;
+
+	d2.markers = NULL; /* So data_free() doesn't clobber them */
+	data_free(d2);
+
+	return d;
+}
+
+struct data data_append_cell(struct data d, cell_t word)
+{
+	cell_t beword = cpu_to_fdt32(word);
+
+	return data_append_data(d, &beword, sizeof(beword));
+}
+
+struct data data_append_re(struct data d, const struct fdt_reserve_entry *re)
+{
+	struct fdt_reserve_entry bere;
+
+	bere.address = cpu_to_fdt64(re->address);
+	bere.size = cpu_to_fdt64(re->size);
+
+	return data_append_data(d, &bere, sizeof(bere));
+}
+
+struct data data_append_addr(struct data d, uint64_t addr)
+{
+	uint64_t beaddr = cpu_to_fdt64(addr);
+
+	return data_append_data(d, &beaddr, sizeof(beaddr));
+}
+
+struct data data_append_byte(struct data d, uint8_t byte)
+{
+	return data_append_data(d, &byte, 1);
+}
+
+struct data data_append_zeroes(struct data d, int len)
+{
+	d = data_grow_for(d, len);
+
+	memset(d.val + d.len, 0, len);
+	d.len += len;
+	return d;
+}
+
+struct data data_append_align(struct data d, int align)
+{
+	int newlen = ALIGN(d.len, align);
+	return data_append_zeroes(d, newlen - d.len);
+}
+
+struct data data_add_marker(struct data d, enum markertype type, char *ref)
+{
+	struct marker *m;
+
+	m = xmalloc(sizeof(*m));
+	m->offset = d.len;
+	m->type = type;
+	m->ref = ref;
+	m->next = NULL;
+
+	return data_append_markers(d, m);
+}
+
+int data_is_one_string(struct data d)
+{
+	int i;
+	int len = d.len;
+
+	if (len == 0)
+		return 0;
+
+	for (i = 0; i < len-1; i++)
+		if (d.val[i] == '\0')
+			return 0;
+
+	if (d.val[len-1] != '\0')
+		return 0;
+
+	return 1;
+}
diff --git a/scripts/dtc/dtc-lexer.l b/scripts/dtc/dtc-lexer.l
new file mode 100644
index 00000000000..44dbfd3f097
--- /dev/null
+++ b/scripts/dtc/dtc-lexer.l
@@ -0,0 +1,320 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+%option noyywrap nounput yylineno
+
+%x INCLUDE
+%x BYTESTRING
+%x PROPNODENAME
+%s V1
+
+PROPNODECHAR	[a-zA-Z0-9,._+*#?@-]
+PATHCHAR	({PROPNODECHAR}|[/])
+LABEL		[a-zA-Z_][a-zA-Z0-9_]*
+STRING		\"([^\\"]|\\.)*\"
+WS		[[:space:]]
+COMMENT		"/*"([^*]|\*+[^*/])*\*+"/"
+LINECOMMENT	"//".*\n
+
+%{
+#include "dtc.h"
+#include "srcpos.h"
+#include "dtc-parser.tab.h"
+
+
+/*#define LEXDEBUG	1*/
+
+#ifdef LEXDEBUG
+#define DPRINT(fmt, ...)	fprintf(stderr, fmt, ##__VA_ARGS__)
+#else
+#define DPRINT(fmt, ...)	do { } while (0)
+#endif
+
+static int dts_version; /* = 0 */
+
+#define BEGIN_DEFAULT()	if (dts_version == 0) { \
+				DPRINT("<INITIAL>\n"); \
+				BEGIN(INITIAL); \
+			} else { \
+				DPRINT("<V1>\n"); \
+				BEGIN(V1); \
+			}
+
+static void push_input_file(const char *filename);
+static int pop_input_file(void);
+%}
+
+%%
+<*>"/include/"{WS}*{STRING} {
+			char *name = strchr(yytext, '\"') + 1;
+			yytext[yyleng-1] = '\0';
+			push_input_file(name);
+		}
+
+<*><<EOF>>		{
+			if (!pop_input_file()) {
+				yyterminate();
+			}
+		}
+
+<*>{STRING}	{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("String: %s\n", yytext);
+			yylval.data = data_copy_escape_string(yytext+1,
+					yyleng-2);
+			yylloc.first_line = yylineno;
+			return DT_STRING;
+		}
+
+<*>"/dts-v1/"	{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Keyword: /dts-v1/\n");
+			dts_version = 1;
+			BEGIN_DEFAULT();
+			return DT_V1;
+		}
+
+<*>"/memreserve/"	{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Keyword: /memreserve/\n");
+			BEGIN_DEFAULT();
+			return DT_MEMRESERVE;
+		}
+
+<*>{LABEL}:	{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Label: %s\n", yytext);
+			yylval.labelref = strdup(yytext);
+			yylval.labelref[yyleng-1] = '\0';
+			return DT_LABEL;
+		}
+
+<INITIAL>[bodh]# {
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			if (*yytext == 'b')
+				yylval.cbase = 2;
+			else if (*yytext == 'o')
+				yylval.cbase = 8;
+			else if (*yytext == 'd')
+				yylval.cbase = 10;
+			else
+				yylval.cbase = 16;
+			DPRINT("Base: %d\n", yylval.cbase);
+			return DT_BASE;
+		}
+
+<INITIAL>[0-9a-fA-F]+	{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			yylval.literal = strdup(yytext);
+			DPRINT("Literal: '%s'\n", yylval.literal);
+			return DT_LEGACYLITERAL;
+		}
+
+<V1>[0-9]+|0[xX][0-9a-fA-F]+      {
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			yylval.literal = strdup(yytext);
+			DPRINT("Literal: '%s'\n", yylval.literal);
+			return DT_LITERAL;
+		}
+
+\&{LABEL}	{	/* label reference */
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Ref: %s\n", yytext+1);
+			yylval.labelref = strdup(yytext+1);
+			return DT_REF;
+		}
+
+"&{/"{PATHCHAR}+\}	{	/* new-style path reference */
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			yytext[yyleng-1] = '\0';
+			DPRINT("Ref: %s\n", yytext+2);
+			yylval.labelref = strdup(yytext+2);
+			return DT_REF;
+		}
+
+<INITIAL>"&/"{PATHCHAR}+ {	/* old-style path reference */
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Ref: %s\n", yytext+1);
+			yylval.labelref = strdup(yytext+1);
+			return DT_REF;
+		}
+
+<BYTESTRING>[0-9a-fA-F]{2} {
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			yylval.byte = strtol(yytext, NULL, 16);
+			DPRINT("Byte: %02x\n", (int)yylval.byte);
+			return DT_BYTE;
+		}
+
+<BYTESTRING>"]"	{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("/BYTESTRING\n");
+			BEGIN_DEFAULT();
+			return ']';
+		}
+
+<PROPNODENAME>{PROPNODECHAR}+ {
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("PropNodeName: %s\n", yytext);
+			yylval.propnodename = strdup(yytext);
+			BEGIN_DEFAULT();
+			return DT_PROPNODENAME;
+		}
+
+"/incbin/"	{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Binary Include\n");
+			return DT_INCBIN;
+		}
+
+<*>{WS}+	/* eat whitespace */
+<*>{COMMENT}+	/* eat C-style comments */
+<*>{LINECOMMENT}+ /* eat C++-style comments */
+
+<*>.		{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Char: %c (\\x%02x)\n", yytext[0],
+				(unsigned)yytext[0]);
+			if (yytext[0] == '[') {
+				DPRINT("<BYTESTRING>\n");
+				BEGIN(BYTESTRING);
+			}
+			if ((yytext[0] == '{')
+			    || (yytext[0] == ';')) {
+				DPRINT("<PROPNODENAME>\n");
+				BEGIN(PROPNODENAME);
+			}
+			return yytext[0];
+		}
+
+%%
+
+
+/*
+ * Stack of nested include file contexts.
+ */
+
+struct incl_file {
+	struct dtc_file *file;
+	YY_BUFFER_STATE yy_prev_buf;
+	int yy_prev_lineno;
+	struct incl_file *prev;
+};
+
+static struct incl_file *incl_file_stack;
+
+
+/*
+ * Detect infinite include recursion.
+ */
+#define MAX_INCLUDE_DEPTH	(100)
+
+static int incl_depth = 0;
+
+
+static void push_input_file(const char *filename)
+{
+	struct incl_file *incl_file;
+	struct dtc_file *newfile;
+	struct search_path search, *searchptr = NULL;
+
+	assert(filename);
+
+	if (incl_depth++ >= MAX_INCLUDE_DEPTH)
+		die("Includes nested too deeply");
+
+	if (srcpos_file) {
+		search.dir = srcpos_file->dir;
+		search.next = NULL;
+		search.prev = NULL;
+		searchptr = &search;
+	}
+
+	newfile = dtc_open_file(filename, searchptr);
+
+	incl_file = xmalloc(sizeof(struct incl_file));
+
+	/*
+	 * Save current context.
+	 */
+	incl_file->yy_prev_buf = YY_CURRENT_BUFFER;
+	incl_file->yy_prev_lineno = yylineno;
+	incl_file->file = srcpos_file;
+	incl_file->prev = incl_file_stack;
+
+	incl_file_stack = incl_file;
+
+	/*
+	 * Establish new context.
+	 */
+	srcpos_file = newfile;
+	yylineno = 1;
+	yyin = newfile->file;
+	yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
+}
+
+
+static int pop_input_file(void)
+{
+	struct incl_file *incl_file;
+
+	if (incl_file_stack == 0)
+		return 0;
+
+	dtc_close_file(srcpos_file);
+
+	/*
+	 * Pop.
+	 */
+	--incl_depth;
+	incl_file = incl_file_stack;
+	incl_file_stack = incl_file->prev;
+
+	/*
+	 * Recover old context.
+	 */
+	yy_delete_buffer(YY_CURRENT_BUFFER);
+	yy_switch_to_buffer(incl_file->yy_prev_buf);
+	yylineno = incl_file->yy_prev_lineno;
+	srcpos_file = incl_file->file;
+	yyin = incl_file->file ? incl_file->file->file : NULL;
+
+	/*
+	 * Free old state.
+	 */
+	free(incl_file);
+
+	return 1;
+}
diff --git a/scripts/dtc/dtc-lexer.lex.c_shipped b/scripts/dtc/dtc-lexer.lex.c_shipped
new file mode 100644
index 00000000000..ac392cb040f
--- /dev/null
+++ b/scripts/dtc/dtc-lexer.lex.c_shipped
@@ -0,0 +1,2187 @@
+#line 2 "dtc-lexer.lex.c"
+
+#line 4 "dtc-lexer.lex.c"
+
+#define  YY_INT_ALIGNED short int
+
+/* A lexical scanner generated by flex */
+
+#define FLEX_SCANNER
+#define YY_FLEX_MAJOR_VERSION 2
+#define YY_FLEX_MINOR_VERSION 5
+#define YY_FLEX_SUBMINOR_VERSION 34
+#if YY_FLEX_SUBMINOR_VERSION > 0
+#define FLEX_BETA
+#endif
+
+/* First, we deal with  platform-specific or compiler-specific issues. */
+
+/* begin standard C headers. */
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/* end standard C headers. */
+
+/* flex integer type definitions */
+
+#ifndef FLEXINT_H
+#define FLEXINT_H
+
+/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
+
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types. 
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
+#include <inttypes.h>
+typedef int8_t flex_int8_t;
+typedef uint8_t flex_uint8_t;
+typedef int16_t flex_int16_t;
+typedef uint16_t flex_uint16_t;
+typedef int32_t flex_int32_t;
+typedef uint32_t flex_uint32_t;
+#else
+typedef signed char flex_int8_t;
+typedef short int flex_int16_t;
+typedef int flex_int32_t;
+typedef unsigned char flex_uint8_t; 
+typedef unsigned short int flex_uint16_t;
+typedef unsigned int flex_uint32_t;
+#endif /* ! C99 */
+
+/* Limits of integral types. */
+#ifndef INT8_MIN
+#define INT8_MIN               (-128)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN              (-32767-1)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN              (-2147483647-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX               (127)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX              (32767)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX              (2147483647)
+#endif
+#ifndef UINT8_MAX
+#define UINT8_MAX              (255U)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX             (65535U)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX             (4294967295U)
+#endif
+
+#endif /* ! FLEXINT_H */
+
+#ifdef __cplusplus
+
+/* The "const" storage-class-modifier is valid. */
+#define YY_USE_CONST
+
+#else	/* ! __cplusplus */
+
+/* C99 requires __STDC__ to be defined as 1. */
+#if defined (__STDC__)
+
+#define YY_USE_CONST
+
+#endif	/* defined (__STDC__) */
+#endif	/* ! __cplusplus */
+
+#ifdef YY_USE_CONST
+#define yyconst const
+#else
+#define yyconst
+#endif
+
+/* Returned upon end-of-file. */
+#define YY_NULL 0
+
+/* Promotes a possibly negative, possibly signed char to an unsigned
+ * integer for use as an array index.  If the signed char is negative,
+ * we want to instead treat it as an 8-bit unsigned char, hence the
+ * double cast.
+ */
+#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
+
+/* Enter a start condition.  This macro really ought to take a parameter,
+ * but we do it the disgusting crufty way forced on us by the ()-less
+ * definition of BEGIN.
+ */
+#define BEGIN (yy_start) = 1 + 2 *
+
+/* Translate the current start state into a value that can be later handed
+ * to BEGIN to return to the state.  The YYSTATE alias is for lex
+ * compatibility.
+ */
+#define YY_START (((yy_start) - 1) / 2)
+#define YYSTATE YY_START
+
+/* Action number for EOF rule of a given start state. */
+#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
+
+/* Special action meaning "start processing a new file". */
+#define YY_NEW_FILE yyrestart(yyin  )
+
+#define YY_END_OF_BUFFER_CHAR 0
+
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#define YY_BUF_SIZE 16384
+#endif
+
+/* The state buf must be large enough to hold one state per character in the main buffer.
+ */
+#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
+
+#ifndef YY_TYPEDEF_YY_BUFFER_STATE
+#define YY_TYPEDEF_YY_BUFFER_STATE
+typedef struct yy_buffer_state *YY_BUFFER_STATE;
+#endif
+
+extern int yyleng;
+
+extern FILE *yyin, *yyout;
+
+#define EOB_ACT_CONTINUE_SCAN 0
+#define EOB_ACT_END_OF_FILE 1
+#define EOB_ACT_LAST_MATCH 2
+
+    /* Note: We specifically omit the test for yy_rule_can_match_eol because it requires
+     *       access to the local variable yy_act. Since yyless() is a macro, it would break
+     *       existing scanners that call yyless() from OUTSIDE yylex. 
+     *       One obvious solution it to make yy_act a global. I tried that, and saw
+     *       a 5% performance hit in a non-yylineno scanner, because yy_act is
+     *       normally declared as a register variable-- so it is not worth it.
+     */
+    #define  YY_LESS_LINENO(n) \
+            do { \
+                int yyl;\
+                for ( yyl = n; yyl < yyleng; ++yyl )\
+                    if ( yytext[yyl] == '\n' )\
+                        --yylineno;\
+            }while(0)
+    
+/* Return all but the first "n" matched characters back to the input stream. */
+#define yyless(n) \
+	do \
+		{ \
+		/* Undo effects of setting up yytext. */ \
+        int yyless_macro_arg = (n); \
+        YY_LESS_LINENO(yyless_macro_arg);\
+		*yy_cp = (yy_hold_char); \
+		YY_RESTORE_YY_MORE_OFFSET \
+		(yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
+		YY_DO_BEFORE_ACTION; /* set up yytext again */ \
+		} \
+	while ( 0 )
+
+#define unput(c) yyunput( c, (yytext_ptr)  )
+
+/* The following is because we cannot portably get our hands on size_t
+ * (without autoconf's help, which isn't available because we want
+ * flex-generated scanners to compile on their own).
+ * Given that the standard has decreed that size_t exists since 1989,
+ * I guess we can afford to depend on it. Manoj.
+ */
+
+#ifndef YY_TYPEDEF_YY_SIZE_T
+#define YY_TYPEDEF_YY_SIZE_T
+typedef size_t yy_size_t;
+#endif
+
+#ifndef YY_STRUCT_YY_BUFFER_STATE
+#define YY_STRUCT_YY_BUFFER_STATE
+struct yy_buffer_state
+	{
+	FILE *yy_input_file;
+
+	char *yy_ch_buf;		/* input buffer */
+	char *yy_buf_pos;		/* current position in input buffer */
+
+	/* Size of input buffer in bytes, not including room for EOB
+	 * characters.
+	 */
+	yy_size_t yy_buf_size;
+
+	/* Number of characters read into yy_ch_buf, not including EOB
+	 * characters.
+	 */
+	int yy_n_chars;
+
+	/* Whether we "own" the buffer - i.e., we know we created it,
+	 * and can realloc() it to grow it, and should free() it to
+	 * delete it.
+	 */
+	int yy_is_our_buffer;
+
+	/* Whether this is an "interactive" input source; if so, and
+	 * if we're using stdio for input, then we want to use getc()
+	 * instead of fread(), to make sure we stop fetching input after
+	 * each newline.
+	 */
+	int yy_is_interactive;
+
+	/* Whether we're considered to be at the beginning of a line.
+	 * If so, '^' rules will be active on the next match, otherwise
+	 * not.
+	 */
+	int yy_at_bol;
+
+    int yy_bs_lineno; /**< The line count. */
+    int yy_bs_column; /**< The column count. */
+    
+	/* Whether to try to fill the input buffer when we reach the
+	 * end of it.
+	 */
+	int yy_fill_buffer;
+
+	int yy_buffer_status;
+
+#define YY_BUFFER_NEW 0
+#define YY_BUFFER_NORMAL 1
+	/* When an EOF's been seen but there's still some text to process
+	 * then we mark the buffer as YY_EOF_PENDING, to indicate that we
+	 * shouldn't try reading from the input source any more.  We might
+	 * still have a bunch of tokens to match, though, because of
+	 * possible backing-up.
+	 *
+	 * When we actually see the EOF, we change the status to "new"
+	 * (via yyrestart()), so that the user can continue scanning by
+	 * just pointing yyin at a new input file.
+	 */
+#define YY_BUFFER_EOF_PENDING 2
+
+	};
+#endif /* !YY_STRUCT_YY_BUFFER_STATE */
+
+/* Stack of input buffers. */
+static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
+static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
+static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */
+
+/* We provide macros for accessing buffer states in case in the
+ * future we want to put the buffer states in a more general
+ * "scanner state".
+ *
+ * Returns the top of the stack, or NULL.
+ */
+#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
+                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
+                          : NULL)
+
+/* Same as previous macro, but useful when we know that the buffer stack is not
+ * NULL or when we need an lvalue. For internal use only.
+ */
+#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
+
+/* yy_hold_char holds the character lost when yytext is formed. */
+static char yy_hold_char;
+static int yy_n_chars;		/* number of characters read into yy_ch_buf */
+int yyleng;
+
+/* Points to current character in buffer. */
+static char *yy_c_buf_p = (char *) 0;
+static int yy_init = 0;		/* whether we need to initialize */
+static int yy_start = 0;	/* start state number */
+
+/* Flag which is used to allow yywrap()'s to do buffer switches
+ * instead of setting up a fresh yyin.  A bit of a hack ...
+ */
+static int yy_did_buffer_switch_on_eof;
+
+void yyrestart (FILE *input_file  );
+void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer  );
+YY_BUFFER_STATE yy_create_buffer (FILE *file,int size  );
+void yy_delete_buffer (YY_BUFFER_STATE b  );
+void yy_flush_buffer (YY_BUFFER_STATE b  );
+void yypush_buffer_state (YY_BUFFER_STATE new_buffer  );
+void yypop_buffer_state (void );
+
+static void yyensure_buffer_stack (void );
+static void yy_load_buffer_state (void );
+static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file  );
+
+#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER )
+
+YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size  );
+YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str  );
+YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,int len  );
+
+void *yyalloc (yy_size_t  );
+void *yyrealloc (void *,yy_size_t  );
+void yyfree (void *  );
+
+#define yy_new_buffer yy_create_buffer
+
+#define yy_set_interactive(is_interactive) \
+	{ \
+	if ( ! YY_CURRENT_BUFFER ){ \
+        yyensure_buffer_stack (); \
+		YY_CURRENT_BUFFER_LVALUE =    \
+            yy_create_buffer(yyin,YY_BUF_SIZE ); \
+	} \
+	YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
+	}
+
+#define yy_set_bol(at_bol) \
+	{ \
+	if ( ! YY_CURRENT_BUFFER ){\
+        yyensure_buffer_stack (); \
+		YY_CURRENT_BUFFER_LVALUE =    \
+            yy_create_buffer(yyin,YY_BUF_SIZE ); \
+	} \
+	YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
+	}
+
+#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
+
+/* Begin user sect3 */
+
+#define yywrap(n) 1
+#define YY_SKIP_YYWRAP
+
+typedef unsigned char YY_CHAR;
+
+FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0;
+
+typedef int yy_state_type;
+
+extern int yylineno;
+
+int yylineno = 1;
+
+extern char *yytext;
+#define yytext_ptr yytext
+
+static yy_state_type yy_get_previous_state (void );
+static yy_state_type yy_try_NUL_trans (yy_state_type current_state  );
+static int yy_get_next_buffer (void );
+static void yy_fatal_error (yyconst char msg[]  );
+
+/* Done after the current pattern has been matched and before the
+ * corresponding action - sets up yytext.
+ */
+#define YY_DO_BEFORE_ACTION \
+	(yytext_ptr) = yy_bp; \
+	yyleng = (size_t) (yy_cp - yy_bp); \
+	(yy_hold_char) = *yy_cp; \
+	*yy_cp = '\0'; \
+	(yy_c_buf_p) = yy_cp;
+
+#define YY_NUM_RULES 20
+#define YY_END_OF_BUFFER 21
+/* This struct is not used in this scanner,
+   but its presence is necessary. */
+struct yy_trans_info
+	{
+	flex_int32_t yy_verify;
+	flex_int32_t yy_nxt;
+	};
+static yyconst flex_int16_t yy_accept[104] =
+    {   0,
+        0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+       21,   19,   16,   16,   19,   19,   19,    7,    7,   19,
+        7,   19,   19,   19,   19,   13,   14,   14,   19,    8,
+        8,   16,    0,    2,    0,    0,    9,    0,    0,    0,
+        0,    0,    0,    7,    7,    5,    0,    6,    0,   12,
+       12,   14,   14,    8,    0,   11,    9,    0,    0,    0,
+        0,   18,    0,    0,    0,    0,    8,    0,   17,    0,
+        0,    0,    0,    0,   10,    0,    0,    0,    0,    0,
+        0,    0,    0,    0,    0,    0,    0,    0,    3,   15,
+        0,    0,    0,    0,    0,    0,    0,    0,    1,    0,
+
+        0,    4,    0
+    } ;
+
+static yyconst flex_int32_t yy_ec[256] =
+    {   0,
+        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
+        2,    2,    2,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    2,    1,    4,    5,    1,    1,    6,    1,    1,
+        1,    7,    8,    8,    9,    8,   10,   11,   12,   13,
+       13,   13,   13,   13,   13,   13,   13,   14,    1,    1,
+        1,    1,    8,    8,   15,   15,   15,   15,   15,   15,
+       16,   16,   16,   16,   16,   16,   16,   16,   16,   16,
+       16,   16,   16,   16,   16,   16,   16,   17,   16,   16,
+        1,   18,   19,    1,   16,    1,   15,   20,   21,   22,
+
+       23,   15,   16,   24,   25,   16,   16,   26,   27,   28,
+       24,   16,   16,   29,   30,   31,   32,   33,   16,   17,
+       16,   16,   34,    1,   35,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1
+    } ;
+
+static yyconst flex_int32_t yy_meta[36] =
+    {   0,
+        1,    1,    1,    1,    2,    1,    2,    2,    2,    3,
+        4,    4,    4,    5,    6,    7,    7,    1,    1,    6,
+        6,    6,    6,    7,    7,    7,    7,    7,    7,    7,
+        7,    7,    7,    8,    1
+    } ;
+
+static yyconst flex_int16_t yy_base[117] =
+    {   0,
+        0,    0,   30,    0,   44,    0,   67,    0,   97,  105,
+      302,  303,   35,   44,   40,   94,  112,    0,  129,  152,
+      296,  295,  159,    0,  176,  303,    0,  116,   95,  165,
+       49,   46,  102,  303,  296,    0,    0,  288,  290,  293,
+      264,  266,  270,    0,    0,  303,    0,  303,  264,  303,
+        0,    0,  195,  101,    0,    0,    0,    0,  284,  125,
+      277,  265,  225,  230,  216,  218,    0,  202,  224,  221,
+      217,  107,  196,  188,  303,  206,  179,  186,  178,  185,
+      183,  162,  161,  150,  169,  160,  145,  125,  303,  303,
+      137,  109,  190,  103,  203,  167,  108,  197,  303,  123,
+
+       29,  303,  303,  215,  221,  226,  229,  234,  240,  246,
+      250,  257,  265,  270,  275,  282
+    } ;
+
+static yyconst flex_int16_t yy_def[117] =
+    {   0,
+      103,    1,    1,    3,    3,    5,  103,    7,    3,    3,
+      103,  103,  103,  103,  104,  105,  103,  106,  103,   19,
+       19,   20,  103,  107,   20,  103,  108,  109,  105,  103,
+      103,  103,  104,  103,  104,  110,  111,  103,  112,  113,
+      103,  103,  103,  106,   19,  103,   20,  103,  103,  103,
+       20,  108,  109,  103,  114,  110,  111,  115,  112,  112,
+      113,  103,  103,  103,  103,  103,  114,  115,  103,  103,
+      103,  103,  103,  103,  103,  103,  103,  103,  103,  103,
+      103,  103,  103,  103,  103,  103,  103,  103,  103,  103,
+      103,  103,  103,  103,  103,  116,  103,  116,  103,  116,
+
+      103,  103,    0,  103,  103,  103,  103,  103,  103,  103,
+      103,  103,  103,  103,  103,  103
+    } ;
+
+static yyconst flex_int16_t yy_nxt[339] =
+    {   0,
+       12,   13,   14,   15,   12,   16,   12,   12,   12,   17,
+       18,   18,   18,   12,   19,   20,   20,   12,   12,   21,
+       19,   21,   19,   22,   20,   20,   20,   20,   20,   20,
+       20,   20,   20,   12,   12,   12,   32,   32,  102,   23,
+       12,   12,   12,   34,   20,   32,   32,   32,   32,   20,
+       20,   20,   20,   20,   24,   24,   24,   35,   25,   54,
+       54,   54,   26,   25,   25,   25,   25,   12,   13,   14,
+       15,   27,   12,   27,   27,   27,   23,   27,   27,   27,
+       12,   28,   28,   28,   12,   12,   28,   28,   28,   28,
+       28,   28,   28,   28,   28,   28,   28,   28,   28,   28,
+
+       12,   12,   29,   36,  103,   34,   17,   30,   31,   31,
+       29,   54,   54,   54,   17,   30,   31,   31,   39,   35,
+       52,   40,   52,   52,   52,  103,   78,   38,   38,   46,
+      101,   60,   79,   41,   69,   97,   42,   94,   43,   45,
+       45,   45,   46,   45,   47,   47,   93,   92,   45,   45,
+       45,   45,   47,   47,   47,   47,   47,   47,   47,   47,
+       47,   47,   47,   47,   47,   39,   47,   91,   40,   90,
+       99,   47,   47,   47,   47,   54,   54,   54,   89,   88,
+       41,   55,   87,   49,  100,   43,   51,   51,   51,   86,
+       51,   95,   95,   96,   85,   51,   51,   51,   51,   52,
+
+       99,   52,   52,   52,   95,   95,   96,   84,   46,   83,
+       82,   81,   39,   79,  100,   33,   33,   33,   33,   33,
+       33,   33,   33,   37,   80,   77,   37,   37,   37,   44,
+       40,   44,   50,   76,   50,   52,   75,   52,   74,   52,
+       52,   53,   73,   53,   53,   53,   53,   56,   56,   56,
+       72,   56,   56,   57,   71,   57,   57,   59,   59,   59,
+       59,   59,   59,   59,   59,   61,   61,   61,   61,   61,
+       61,   61,   61,   67,   70,   67,   68,   68,   68,   62,
+       68,   68,   98,   98,   98,   98,   98,   98,   98,   98,
+       60,   66,   65,   64,   63,   62,   60,   58,  103,   48,
+
+       48,  103,   11,  103,  103,  103,  103,  103,  103,  103,
+      103,  103,  103,  103,  103,  103,  103,  103,  103,  103,
+      103,  103,  103,  103,  103,  103,  103,  103,  103,  103,
+      103,  103,  103,  103,  103,  103,  103,  103
+    } ;
+
+static yyconst flex_int16_t yy_chk[339] =
+    {   0,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
+        1,    1,    1,    1,    1,    3,   13,   13,  101,    3,
+        3,    3,    3,   15,    3,   14,   14,   32,   32,    3,
+        3,    3,    3,    3,    5,    5,    5,   15,    5,   31,
+       31,   31,    5,    5,    5,    5,    5,    7,    7,    7,
+        7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
+        7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
+        7,    7,    7,    7,    7,    7,    7,    7,    7,    7,
+
+        7,    7,    9,   16,   29,   33,    9,    9,    9,    9,
+       10,   54,   54,   54,   10,   10,   10,   10,   17,   33,
+       28,   17,   28,   28,   28,  100,   72,   16,   29,   28,
+       97,   60,   72,   17,   60,   94,   17,   92,   17,   19,
+       19,   19,   19,   19,   19,   19,   91,   88,   19,   19,
+       19,   19,   19,   19,   19,   19,   19,   19,   19,   19,
+       19,   19,   20,   20,   20,   23,   20,   87,   23,   86,
+       96,   20,   20,   20,   20,   30,   30,   30,   85,   84,
+       23,   30,   83,   23,   96,   23,   25,   25,   25,   82,
+       25,   93,   93,   93,   81,   25,   25,   25,   25,   53,
+
+       98,   53,   53,   53,   95,   95,   95,   80,   53,   79,
+       78,   77,   76,   74,   98,  104,  104,  104,  104,  104,
+      104,  104,  104,  105,   73,   71,  105,  105,  105,  106,
+       70,  106,  107,   69,  107,  108,   68,  108,   66,  108,
+      108,  109,   65,  109,  109,  109,  109,  110,  110,  110,
+       64,  110,  110,  111,   63,  111,  111,  112,  112,  112,
+      112,  112,  112,  112,  112,  113,  113,  113,  113,  113,
+      113,  113,  113,  114,   62,  114,  115,  115,  115,   61,
+      115,  115,  116,  116,  116,  116,  116,  116,  116,  116,
+       59,   49,   43,   42,   41,   40,   39,   38,   35,   22,
+
+       21,   11,  103,  103,  103,  103,  103,  103,  103,  103,
+      103,  103,  103,  103,  103,  103,  103,  103,  103,  103,
+      103,  103,  103,  103,  103,  103,  103,  103,  103,  103,
+      103,  103,  103,  103,  103,  103,  103,  103
+    } ;
+
+/* Table of booleans, true if rule could match eol. */
+static yyconst flex_int32_t yy_rule_can_match_eol[21] =
+    {   0,
+1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 
+    0,     };
+
+static yy_state_type yy_last_accepting_state;
+static char *yy_last_accepting_cpos;
+
+extern int yy_flex_debug;
+int yy_flex_debug = 0;
+
+/* The intent behind this definition is that it'll catch
+ * any uses of REJECT which flex missed.
+ */
+#define REJECT reject_used_but_not_detected
+#define yymore() yymore_used_but_not_detected
+#define YY_MORE_ADJ 0
+#define YY_RESTORE_YY_MORE_OFFSET
+char *yytext;
+#line 1 "dtc-lexer.l"
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+
+
+
+#line 37 "dtc-lexer.l"
+#include "dtc.h"
+#include "srcpos.h"
+#include "dtc-parser.tab.h"
+
+
+/*#define LEXDEBUG	1*/
+
+#ifdef LEXDEBUG
+#define DPRINT(fmt, ...)	fprintf(stderr, fmt, ##__VA_ARGS__)
+#else
+#define DPRINT(fmt, ...)	do { } while (0)
+#endif
+
+static int dts_version; /* = 0 */
+
+#define BEGIN_DEFAULT()	if (dts_version == 0) { \
+				DPRINT("<INITIAL>\n"); \
+				BEGIN(INITIAL); \
+			} else { \
+				DPRINT("<V1>\n"); \
+				BEGIN(V1); \
+			}
+
+static void push_input_file(const char *filename);
+static int pop_input_file(void);
+#line 638 "dtc-lexer.lex.c"
+
+#define INITIAL 0
+#define INCLUDE 1
+#define BYTESTRING 2
+#define PROPNODENAME 3
+#define V1 4
+
+#ifndef YY_NO_UNISTD_H
+/* Special case for "unistd.h", since it is non-ANSI. We include it way
+ * down here because we want the user's section 1 to have been scanned first.
+ * The user has a chance to override it with an option.
+ */
+#include <unistd.h>
+#endif
+
+#ifndef YY_EXTRA_TYPE
+#define YY_EXTRA_TYPE void *
+#endif
+
+static int yy_init_globals (void );
+
+/* Macros after this point can all be overridden by user definitions in
+ * section 1.
+ */
+
+#ifndef YY_SKIP_YYWRAP
+#ifdef __cplusplus
+extern "C" int yywrap (void );
+#else
+extern int yywrap (void );
+#endif
+#endif
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char *,yyconst char *,int );
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * );
+#endif
+
+#ifndef YY_NO_INPUT
+
+#ifdef __cplusplus
+static int yyinput (void );
+#else
+static int input (void );
+#endif
+
+#endif
+
+/* Amount of stuff to slurp up with each read. */
+#ifndef YY_READ_BUF_SIZE
+#define YY_READ_BUF_SIZE 8192
+#endif
+
+/* Copy whatever the last rule matched to the standard output. */
+#ifndef ECHO
+/* This used to be an fputs(), but since the string might contain NUL's,
+ * we now use fwrite().
+ */
+#define ECHO fwrite( yytext, yyleng, 1, yyout )
+#endif
+
+/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
+ * is returned in "result".
+ */
+#ifndef YY_INPUT
+#define YY_INPUT(buf,result,max_size) \
+	if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
+		{ \
+		int c = '*'; \
+		int n; \
+		for ( n = 0; n < max_size && \
+			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
+			buf[n] = (char) c; \
+		if ( c == '\n' ) \
+			buf[n++] = (char) c; \
+		if ( c == EOF && ferror( yyin ) ) \
+			YY_FATAL_ERROR( "input in flex scanner failed" ); \
+		result = n; \
+		} \
+	else \
+		{ \
+		errno=0; \
+		while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
+			{ \
+			if( errno != EINTR) \
+				{ \
+				YY_FATAL_ERROR( "input in flex scanner failed" ); \
+				break; \
+				} \
+			errno=0; \
+			clearerr(yyin); \
+			} \
+		}\
+\
+
+#endif
+
+/* No semi-colon after return; correct usage is to write "yyterminate();" -
+ * we don't want an extra ';' after the "return" because that will cause
+ * some compilers to complain about unreachable statements.
+ */
+#ifndef yyterminate
+#define yyterminate() return YY_NULL
+#endif
+
+/* Number of entries by which start-condition stack grows. */
+#ifndef YY_START_STACK_INCR
+#define YY_START_STACK_INCR 25
+#endif
+
+/* Report a fatal error. */
+#ifndef YY_FATAL_ERROR
+#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
+#endif
+
+/* end tables serialization structures and prototypes */
+
+/* Default declaration of generated scanner - a define so the user can
+ * easily add parameters.
+ */
+#ifndef YY_DECL
+#define YY_DECL_IS_OURS 1
+
+extern int yylex (void);
+
+#define YY_DECL int yylex (void)
+#endif /* !YY_DECL */
+
+/* Code executed at the beginning of each rule, after yytext and yyleng
+ * have been set up.
+ */
+#ifndef YY_USER_ACTION
+#define YY_USER_ACTION
+#endif
+
+/* Code executed at the end of each rule. */
+#ifndef YY_BREAK
+#define YY_BREAK break;
+#endif
+
+#define YY_RULE_SETUP \
+	YY_USER_ACTION
+
+/** The main scanner function which does all the work.
+ */
+YY_DECL
+{
+	register yy_state_type yy_current_state;
+	register char *yy_cp, *yy_bp;
+	register int yy_act;
+    
+#line 64 "dtc-lexer.l"
+
+#line 795 "dtc-lexer.lex.c"
+
+	if ( !(yy_init) )
+		{
+		(yy_init) = 1;
+
+#ifdef YY_USER_INIT
+		YY_USER_INIT;
+#endif
+
+		if ( ! (yy_start) )
+			(yy_start) = 1;	/* first start state */
+
+		if ( ! yyin )
+			yyin = stdin;
+
+		if ( ! yyout )
+			yyout = stdout;
+
+		if ( ! YY_CURRENT_BUFFER ) {
+			yyensure_buffer_stack ();
+			YY_CURRENT_BUFFER_LVALUE =
+				yy_create_buffer(yyin,YY_BUF_SIZE );
+		}
+
+		yy_load_buffer_state( );
+		}
+
+	while ( 1 )		/* loops until end-of-file is reached */
+		{
+		yy_cp = (yy_c_buf_p);
+
+		/* Support of yytext. */
+		*yy_cp = (yy_hold_char);
+
+		/* yy_bp points to the position in yy_ch_buf of the start of
+		 * the current run.
+		 */
+		yy_bp = yy_cp;
+
+		yy_current_state = (yy_start);
+yy_match:
+		do
+			{
+			register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
+			if ( yy_accept[yy_current_state] )
+				{
+				(yy_last_accepting_state) = yy_current_state;
+				(yy_last_accepting_cpos) = yy_cp;
+				}
+			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+				{
+				yy_current_state = (int) yy_def[yy_current_state];
+				if ( yy_current_state >= 104 )
+					yy_c = yy_meta[(unsigned int) yy_c];
+				}
+			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+			++yy_cp;
+			}
+		while ( yy_base[yy_current_state] != 303 );
+
+yy_find_action:
+		yy_act = yy_accept[yy_current_state];
+		if ( yy_act == 0 )
+			{ /* have to back up */
+			yy_cp = (yy_last_accepting_cpos);
+			yy_current_state = (yy_last_accepting_state);
+			yy_act = yy_accept[yy_current_state];
+			}
+
+		YY_DO_BEFORE_ACTION;
+
+		if ( yy_act != YY_END_OF_BUFFER && yy_rule_can_match_eol[yy_act] )
+			{
+			int yyl;
+			for ( yyl = 0; yyl < yyleng; ++yyl )
+				if ( yytext[yyl] == '\n' )
+					   
+    yylineno++;
+;
+			}
+
+do_action:	/* This label is used only to access EOF actions. */
+
+		switch ( yy_act )
+	{ /* beginning of action switch */
+			case 0: /* must back up */
+			/* undo the effects of YY_DO_BEFORE_ACTION */
+			*yy_cp = (yy_hold_char);
+			yy_cp = (yy_last_accepting_cpos);
+			yy_current_state = (yy_last_accepting_state);
+			goto yy_find_action;
+
+case 1:
+/* rule 1 can match eol */
+YY_RULE_SETUP
+#line 65 "dtc-lexer.l"
+{
+			char *name = strchr(yytext, '\"') + 1;
+			yytext[yyleng-1] = '\0';
+			push_input_file(name);
+		}
+	YY_BREAK
+case YY_STATE_EOF(INITIAL):
+case YY_STATE_EOF(INCLUDE):
+case YY_STATE_EOF(BYTESTRING):
+case YY_STATE_EOF(PROPNODENAME):
+case YY_STATE_EOF(V1):
+#line 71 "dtc-lexer.l"
+{
+			if (!pop_input_file()) {
+				yyterminate();
+			}
+		}
+	YY_BREAK
+case 2:
+/* rule 2 can match eol */
+YY_RULE_SETUP
+#line 77 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("String: %s\n", yytext);
+			yylval.data = data_copy_escape_string(yytext+1,
+					yyleng-2);
+			yylloc.first_line = yylineno;
+			return DT_STRING;
+		}
+	YY_BREAK
+case 3:
+YY_RULE_SETUP
+#line 87 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Keyword: /dts-v1/\n");
+			dts_version = 1;
+			BEGIN_DEFAULT();
+			return DT_V1;
+		}
+	YY_BREAK
+case 4:
+YY_RULE_SETUP
+#line 96 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Keyword: /memreserve/\n");
+			BEGIN_DEFAULT();
+			return DT_MEMRESERVE;
+		}
+	YY_BREAK
+case 5:
+YY_RULE_SETUP
+#line 104 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Label: %s\n", yytext);
+			yylval.labelref = strdup(yytext);
+			yylval.labelref[yyleng-1] = '\0';
+			return DT_LABEL;
+		}
+	YY_BREAK
+case 6:
+YY_RULE_SETUP
+#line 113 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			if (*yytext == 'b')
+				yylval.cbase = 2;
+			else if (*yytext == 'o')
+				yylval.cbase = 8;
+			else if (*yytext == 'd')
+				yylval.cbase = 10;
+			else
+				yylval.cbase = 16;
+			DPRINT("Base: %d\n", yylval.cbase);
+			return DT_BASE;
+		}
+	YY_BREAK
+case 7:
+YY_RULE_SETUP
+#line 128 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			yylval.literal = strdup(yytext);
+			DPRINT("Literal: '%s'\n", yylval.literal);
+			return DT_LEGACYLITERAL;
+		}
+	YY_BREAK
+case 8:
+YY_RULE_SETUP
+#line 136 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			yylval.literal = strdup(yytext);
+			DPRINT("Literal: '%s'\n", yylval.literal);
+			return DT_LITERAL;
+		}
+	YY_BREAK
+case 9:
+YY_RULE_SETUP
+#line 144 "dtc-lexer.l"
+{	/* label reference */
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Ref: %s\n", yytext+1);
+			yylval.labelref = strdup(yytext+1);
+			return DT_REF;
+		}
+	YY_BREAK
+case 10:
+YY_RULE_SETUP
+#line 152 "dtc-lexer.l"
+{	/* new-style path reference */
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			yytext[yyleng-1] = '\0';
+			DPRINT("Ref: %s\n", yytext+2);
+			yylval.labelref = strdup(yytext+2);
+			return DT_REF;
+		}
+	YY_BREAK
+case 11:
+YY_RULE_SETUP
+#line 161 "dtc-lexer.l"
+{	/* old-style path reference */
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Ref: %s\n", yytext+1);
+			yylval.labelref = strdup(yytext+1);
+			return DT_REF;
+		}
+	YY_BREAK
+case 12:
+YY_RULE_SETUP
+#line 169 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			yylval.byte = strtol(yytext, NULL, 16);
+			DPRINT("Byte: %02x\n", (int)yylval.byte);
+			return DT_BYTE;
+		}
+	YY_BREAK
+case 13:
+YY_RULE_SETUP
+#line 177 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("/BYTESTRING\n");
+			BEGIN_DEFAULT();
+			return ']';
+		}
+	YY_BREAK
+case 14:
+YY_RULE_SETUP
+#line 185 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("PropNodeName: %s\n", yytext);
+			yylval.propnodename = strdup(yytext);
+			BEGIN_DEFAULT();
+			return DT_PROPNODENAME;
+		}
+	YY_BREAK
+case 15:
+YY_RULE_SETUP
+#line 194 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Binary Include\n");
+			return DT_INCBIN;
+		}
+	YY_BREAK
+case 16:
+/* rule 16 can match eol */
+YY_RULE_SETUP
+#line 201 "dtc-lexer.l"
+/* eat whitespace */
+	YY_BREAK
+case 17:
+/* rule 17 can match eol */
+YY_RULE_SETUP
+#line 202 "dtc-lexer.l"
+/* eat C-style comments */
+	YY_BREAK
+case 18:
+/* rule 18 can match eol */
+YY_RULE_SETUP
+#line 203 "dtc-lexer.l"
+/* eat C++-style comments */
+	YY_BREAK
+case 19:
+YY_RULE_SETUP
+#line 205 "dtc-lexer.l"
+{
+			yylloc.file = srcpos_file;
+			yylloc.first_line = yylineno;
+			DPRINT("Char: %c (\\x%02x)\n", yytext[0],
+				(unsigned)yytext[0]);
+			if (yytext[0] == '[') {
+				DPRINT("<BYTESTRING>\n");
+				BEGIN(BYTESTRING);
+			}
+			if ((yytext[0] == '{')
+			    || (yytext[0] == ';')) {
+				DPRINT("<PROPNODENAME>\n");
+				BEGIN(PROPNODENAME);
+			}
+			return yytext[0];
+		}
+	YY_BREAK
+case 20:
+YY_RULE_SETUP
+#line 222 "dtc-lexer.l"
+ECHO;
+	YY_BREAK
+#line 1120 "dtc-lexer.lex.c"
+
+	case YY_END_OF_BUFFER:
+		{
+		/* Amount of text matched not including the EOB char. */
+		int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
+
+		/* Undo the effects of YY_DO_BEFORE_ACTION. */
+		*yy_cp = (yy_hold_char);
+		YY_RESTORE_YY_MORE_OFFSET
+
+		if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
+			{
+			/* We're scanning a new file or input source.  It's
+			 * possible that this happened because the user
+			 * just pointed yyin at a new source and called
+			 * yylex().  If so, then we have to assure
+			 * consistency between YY_CURRENT_BUFFER and our
+			 * globals.  Here is the right place to do so, because
+			 * this is the first action (other than possibly a
+			 * back-up) that will match for the new input source.
+			 */
+			(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+			YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin;
+			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
+			}
+
+		/* Note that here we test for yy_c_buf_p "<=" to the position
+		 * of the first EOB in the buffer, since yy_c_buf_p will
+		 * already have been incremented past the NUL character
+		 * (since all states make transitions on EOB to the
+		 * end-of-buffer state).  Contrast this with the test
+		 * in input().
+		 */
+		if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+			{ /* This was really a NUL. */
+			yy_state_type yy_next_state;
+
+			(yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
+
+			yy_current_state = yy_get_previous_state(  );
+
+			/* Okay, we're now positioned to make the NUL
+			 * transition.  We couldn't have
+			 * yy_get_previous_state() go ahead and do it
+			 * for us because it doesn't know how to deal
+			 * with the possibility of jamming (and we don't
+			 * want to build jamming into it because then it
+			 * will run more slowly).
+			 */
+
+			yy_next_state = yy_try_NUL_trans( yy_current_state );
+
+			yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+
+			if ( yy_next_state )
+				{
+				/* Consume the NUL. */
+				yy_cp = ++(yy_c_buf_p);
+				yy_current_state = yy_next_state;
+				goto yy_match;
+				}
+
+			else
+				{
+				yy_cp = (yy_c_buf_p);
+				goto yy_find_action;
+				}
+			}
+
+		else switch ( yy_get_next_buffer(  ) )
+			{
+			case EOB_ACT_END_OF_FILE:
+				{
+				(yy_did_buffer_switch_on_eof) = 0;
+
+				if ( yywrap( ) )
+					{
+					/* Note: because we've taken care in
+					 * yy_get_next_buffer() to have set up
+					 * yytext, we can now set up
+					 * yy_c_buf_p so that if some total
+					 * hoser (like flex itself) wants to
+					 * call the scanner after we return the
+					 * YY_NULL, it'll still work - another
+					 * YY_NULL will get returned.
+					 */
+					(yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
+
+					yy_act = YY_STATE_EOF(YY_START);
+					goto do_action;
+					}
+
+				else
+					{
+					if ( ! (yy_did_buffer_switch_on_eof) )
+						YY_NEW_FILE;
+					}
+				break;
+				}
+
+			case EOB_ACT_CONTINUE_SCAN:
+				(yy_c_buf_p) =
+					(yytext_ptr) + yy_amount_of_matched_text;
+
+				yy_current_state = yy_get_previous_state(  );
+
+				yy_cp = (yy_c_buf_p);
+				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+				goto yy_match;
+
+			case EOB_ACT_LAST_MATCH:
+				(yy_c_buf_p) =
+				&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
+
+				yy_current_state = yy_get_previous_state(  );
+
+				yy_cp = (yy_c_buf_p);
+				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
+				goto yy_find_action;
+			}
+		break;
+		}
+
+	default:
+		YY_FATAL_ERROR(
+			"fatal flex scanner internal error--no action found" );
+	} /* end of action switch */
+		} /* end of scanning one token */
+} /* end of yylex */
+
+/* yy_get_next_buffer - try to read in a new buffer
+ *
+ * Returns a code representing an action:
+ *	EOB_ACT_LAST_MATCH -
+ *	EOB_ACT_CONTINUE_SCAN - continue scanning from current position
+ *	EOB_ACT_END_OF_FILE - end of file
+ */
+static int yy_get_next_buffer (void)
+{
+    	register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
+	register char *source = (yytext_ptr);
+	register int number_to_move, i;
+	int ret_val;
+
+	if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
+		YY_FATAL_ERROR(
+		"fatal flex scanner internal error--end of buffer missed" );
+
+	if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
+		{ /* Don't try to fill the buffer, so this is an EOF. */
+		if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
+			{
+			/* We matched a single character, the EOB, so
+			 * treat this as a final EOF.
+			 */
+			return EOB_ACT_END_OF_FILE;
+			}
+
+		else
+			{
+			/* We matched some text prior to the EOB, first
+			 * process it.
+			 */
+			return EOB_ACT_LAST_MATCH;
+			}
+		}
+
+	/* Try to read more data. */
+
+	/* First move last chars to start of buffer. */
+	number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
+
+	for ( i = 0; i < number_to_move; ++i )
+		*(dest++) = *(source++);
+
+	if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
+		/* don't do the read, it's not guaranteed to return an EOF,
+		 * just force an EOF
+		 */
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
+
+	else
+		{
+			int num_to_read =
+			YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
+
+		while ( num_to_read <= 0 )
+			{ /* Not enough room in the buffer - grow it. */
+
+			/* just a shorter name for the current buffer */
+			YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
+
+			int yy_c_buf_p_offset =
+				(int) ((yy_c_buf_p) - b->yy_ch_buf);
+
+			if ( b->yy_is_our_buffer )
+				{
+				int new_size = b->yy_buf_size * 2;
+
+				if ( new_size <= 0 )
+					b->yy_buf_size += b->yy_buf_size / 8;
+				else
+					b->yy_buf_size *= 2;
+
+				b->yy_ch_buf = (char *)
+					/* Include room in for 2 EOB chars. */
+					yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2  );
+				}
+			else
+				/* Can't grow it, we don't own it. */
+				b->yy_ch_buf = 0;
+
+			if ( ! b->yy_ch_buf )
+				YY_FATAL_ERROR(
+				"fatal error - scanner input buffer overflow" );
+
+			(yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
+
+			num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
+						number_to_move - 1;
+
+			}
+
+		if ( num_to_read > YY_READ_BUF_SIZE )
+			num_to_read = YY_READ_BUF_SIZE;
+
+		/* Read in more data. */
+		YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
+			(yy_n_chars), (size_t) num_to_read );
+
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+		}
+
+	if ( (yy_n_chars) == 0 )
+		{
+		if ( number_to_move == YY_MORE_ADJ )
+			{
+			ret_val = EOB_ACT_END_OF_FILE;
+			yyrestart(yyin  );
+			}
+
+		else
+			{
+			ret_val = EOB_ACT_LAST_MATCH;
+			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
+				YY_BUFFER_EOF_PENDING;
+			}
+		}
+
+	else
+		ret_val = EOB_ACT_CONTINUE_SCAN;
+
+	if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
+		/* Extend the array by 50%, plus the number we really need. */
+		yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
+		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size  );
+		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
+			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
+	}
+
+	(yy_n_chars) += number_to_move;
+	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
+	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
+
+	(yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
+
+	return ret_val;
+}
+
+/* yy_get_previous_state - get the state just before the EOB char was reached */
+
+    static yy_state_type yy_get_previous_state (void)
+{
+	register yy_state_type yy_current_state;
+	register char *yy_cp;
+    
+	yy_current_state = (yy_start);
+
+	for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
+		{
+		register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
+		if ( yy_accept[yy_current_state] )
+			{
+			(yy_last_accepting_state) = yy_current_state;
+			(yy_last_accepting_cpos) = yy_cp;
+			}
+		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+			{
+			yy_current_state = (int) yy_def[yy_current_state];
+			if ( yy_current_state >= 104 )
+				yy_c = yy_meta[(unsigned int) yy_c];
+			}
+		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+		}
+
+	return yy_current_state;
+}
+
+/* yy_try_NUL_trans - try to make a transition on the NUL character
+ *
+ * synopsis
+ *	next_state = yy_try_NUL_trans( current_state );
+ */
+    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
+{
+	register int yy_is_jam;
+    	register char *yy_cp = (yy_c_buf_p);
+
+	register YY_CHAR yy_c = 1;
+	if ( yy_accept[yy_current_state] )
+		{
+		(yy_last_accepting_state) = yy_current_state;
+		(yy_last_accepting_cpos) = yy_cp;
+		}
+	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
+		{
+		yy_current_state = (int) yy_def[yy_current_state];
+		if ( yy_current_state >= 104 )
+			yy_c = yy_meta[(unsigned int) yy_c];
+		}
+	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+	yy_is_jam = (yy_current_state == 103);
+
+	return yy_is_jam ? 0 : yy_current_state;
+}
+
+#ifndef YY_NO_INPUT
+#ifdef __cplusplus
+    static int yyinput (void)
+#else
+    static int input  (void)
+#endif
+
+{
+	int c;
+    
+	*(yy_c_buf_p) = (yy_hold_char);
+
+	if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
+		{
+		/* yy_c_buf_p now points to the character we want to return.
+		 * If this occurs *before* the EOB characters, then it's a
+		 * valid NUL; if not, then we've hit the end of the buffer.
+		 */
+		if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
+			/* This was really a NUL. */
+			*(yy_c_buf_p) = '\0';
+
+		else
+			{ /* need more input */
+			int offset = (yy_c_buf_p) - (yytext_ptr);
+			++(yy_c_buf_p);
+
+			switch ( yy_get_next_buffer(  ) )
+				{
+				case EOB_ACT_LAST_MATCH:
+					/* This happens because yy_g_n_b()
+					 * sees that we've accumulated a
+					 * token and flags that we need to
+					 * try matching the token before
+					 * proceeding.  But for input(),
+					 * there's no matching to consider.
+					 * So convert the EOB_ACT_LAST_MATCH
+					 * to EOB_ACT_END_OF_FILE.
+					 */
+
+					/* Reset buffer status. */
+					yyrestart(yyin );
+
+					/*FALLTHROUGH*/
+
+				case EOB_ACT_END_OF_FILE:
+					{
+					if ( yywrap( ) )
+						return EOF;
+
+					if ( ! (yy_did_buffer_switch_on_eof) )
+						YY_NEW_FILE;
+#ifdef __cplusplus
+					return yyinput();
+#else
+					return input();
+#endif
+					}
+
+				case EOB_ACT_CONTINUE_SCAN:
+					(yy_c_buf_p) = (yytext_ptr) + offset;
+					break;
+				}
+			}
+		}
+
+	c = *(unsigned char *) (yy_c_buf_p);	/* cast for 8-bit char's */
+	*(yy_c_buf_p) = '\0';	/* preserve yytext */
+	(yy_hold_char) = *++(yy_c_buf_p);
+
+	if ( c == '\n' )
+		   
+    yylineno++;
+;
+
+	return c;
+}
+#endif	/* ifndef YY_NO_INPUT */
+
+/** Immediately switch to a different input stream.
+ * @param input_file A readable stream.
+ * 
+ * @note This function does not reset the start condition to @c INITIAL .
+ */
+    void yyrestart  (FILE * input_file )
+{
+    
+	if ( ! YY_CURRENT_BUFFER ){
+        yyensure_buffer_stack ();
+		YY_CURRENT_BUFFER_LVALUE =
+            yy_create_buffer(yyin,YY_BUF_SIZE );
+	}
+
+	yy_init_buffer(YY_CURRENT_BUFFER,input_file );
+	yy_load_buffer_state( );
+}
+
+/** Switch to a different input buffer.
+ * @param new_buffer The new input buffer.
+ * 
+ */
+    void yy_switch_to_buffer  (YY_BUFFER_STATE  new_buffer )
+{
+    
+	/* TODO. We should be able to replace this entire function body
+	 * with
+	 *		yypop_buffer_state();
+	 *		yypush_buffer_state(new_buffer);
+     */
+	yyensure_buffer_stack ();
+	if ( YY_CURRENT_BUFFER == new_buffer )
+		return;
+
+	if ( YY_CURRENT_BUFFER )
+		{
+		/* Flush out information for old buffer. */
+		*(yy_c_buf_p) = (yy_hold_char);
+		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+		}
+
+	YY_CURRENT_BUFFER_LVALUE = new_buffer;
+	yy_load_buffer_state( );
+
+	/* We don't actually know whether we did this switch during
+	 * EOF (yywrap()) processing, but the only time this flag
+	 * is looked at is after yywrap() is called, so it's safe
+	 * to go ahead and always set it.
+	 */
+	(yy_did_buffer_switch_on_eof) = 1;
+}
+
+static void yy_load_buffer_state  (void)
+{
+    	(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
+	(yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
+	yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
+	(yy_hold_char) = *(yy_c_buf_p);
+}
+
+/** Allocate and initialize an input buffer state.
+ * @param file A readable stream.
+ * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
+ * 
+ * @return the allocated buffer state.
+ */
+    YY_BUFFER_STATE yy_create_buffer  (FILE * file, int  size )
+{
+	YY_BUFFER_STATE b;
+    
+	b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
+	if ( ! b )
+		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
+
+	b->yy_buf_size = size;
+
+	/* yy_ch_buf has to be 2 characters longer than the size given because
+	 * we need to put in 2 end-of-buffer characters.
+	 */
+	b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2  );
+	if ( ! b->yy_ch_buf )
+		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
+
+	b->yy_is_our_buffer = 1;
+
+	yy_init_buffer(b,file );
+
+	return b;
+}
+
+/** Destroy the buffer.
+ * @param b a buffer created with yy_create_buffer()
+ * 
+ */
+    void yy_delete_buffer (YY_BUFFER_STATE  b )
+{
+    
+	if ( ! b )
+		return;
+
+	if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
+		YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
+
+	if ( b->yy_is_our_buffer )
+		yyfree((void *) b->yy_ch_buf  );
+
+	yyfree((void *) b  );
+}
+
+#ifndef __cplusplus
+extern int isatty (int );
+#endif /* __cplusplus */
+    
+/* Initializes or reinitializes a buffer.
+ * This function is sometimes called more than once on the same buffer,
+ * such as during a yyrestart() or at EOF.
+ */
+    static void yy_init_buffer  (YY_BUFFER_STATE  b, FILE * file )
+
+{
+	int oerrno = errno;
+    
+	yy_flush_buffer(b );
+
+	b->yy_input_file = file;
+	b->yy_fill_buffer = 1;
+
+    /* If b is the current buffer, then yy_init_buffer was _probably_
+     * called from yyrestart() or through yy_get_next_buffer.
+     * In that case, we don't want to reset the lineno or column.
+     */
+    if (b != YY_CURRENT_BUFFER){
+        b->yy_bs_lineno = 1;
+        b->yy_bs_column = 0;
+    }
+
+        b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
+    
+	errno = oerrno;
+}
+
+/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
+ * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
+ * 
+ */
+    void yy_flush_buffer (YY_BUFFER_STATE  b )
+{
+    	if ( ! b )
+		return;
+
+	b->yy_n_chars = 0;
+
+	/* We always need two end-of-buffer characters.  The first causes
+	 * a transition to the end-of-buffer state.  The second causes
+	 * a jam in that state.
+	 */
+	b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
+	b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
+
+	b->yy_buf_pos = &b->yy_ch_buf[0];
+
+	b->yy_at_bol = 1;
+	b->yy_buffer_status = YY_BUFFER_NEW;
+
+	if ( b == YY_CURRENT_BUFFER )
+		yy_load_buffer_state( );
+}
+
+/** Pushes the new state onto the stack. The new state becomes
+ *  the current state. This function will allocate the stack
+ *  if necessary.
+ *  @param new_buffer The new state.
+ *  
+ */
+void yypush_buffer_state (YY_BUFFER_STATE new_buffer )
+{
+    	if (new_buffer == NULL)
+		return;
+
+	yyensure_buffer_stack();
+
+	/* This block is copied from yy_switch_to_buffer. */
+	if ( YY_CURRENT_BUFFER )
+		{
+		/* Flush out information for old buffer. */
+		*(yy_c_buf_p) = (yy_hold_char);
+		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
+		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
+		}
+
+	/* Only push if top exists. Otherwise, replace top. */
+	if (YY_CURRENT_BUFFER)
+		(yy_buffer_stack_top)++;
+	YY_CURRENT_BUFFER_LVALUE = new_buffer;
+
+	/* copied from yy_switch_to_buffer. */
+	yy_load_buffer_state( );
+	(yy_did_buffer_switch_on_eof) = 1;
+}
+
+/** Removes and deletes the top of the stack, if present.
+ *  The next element becomes the new top.
+ *  
+ */
+void yypop_buffer_state (void)
+{
+    	if (!YY_CURRENT_BUFFER)
+		return;
+
+	yy_delete_buffer(YY_CURRENT_BUFFER );
+	YY_CURRENT_BUFFER_LVALUE = NULL;
+	if ((yy_buffer_stack_top) > 0)
+		--(yy_buffer_stack_top);
+
+	if (YY_CURRENT_BUFFER) {
+		yy_load_buffer_state( );
+		(yy_did_buffer_switch_on_eof) = 1;
+	}
+}
+
+/* Allocates the stack if it does not exist.
+ *  Guarantees space for at least one push.
+ */
+static void yyensure_buffer_stack (void)
+{
+	int num_to_alloc;
+    
+	if (!(yy_buffer_stack)) {
+
+		/* First allocation is just for 2 elements, since we don't know if this
+		 * scanner will even need a stack. We use 2 instead of 1 to avoid an
+		 * immediate realloc on the next call.
+         */
+		num_to_alloc = 1;
+		(yy_buffer_stack) = (struct yy_buffer_state**)yyalloc
+								(num_to_alloc * sizeof(struct yy_buffer_state*)
+								);
+		if ( ! (yy_buffer_stack) )
+			YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );
+								  
+		memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
+				
+		(yy_buffer_stack_max) = num_to_alloc;
+		(yy_buffer_stack_top) = 0;
+		return;
+	}
+
+	if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
+
+		/* Increase the buffer to prepare for a possible push. */
+		int grow_size = 8 /* arbitrary grow size */;
+
+		num_to_alloc = (yy_buffer_stack_max) + grow_size;
+		(yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc
+								((yy_buffer_stack),
+								num_to_alloc * sizeof(struct yy_buffer_state*)
+								);
+		if ( ! (yy_buffer_stack) )
+			YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );
+
+		/* zero only the new slots.*/
+		memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
+		(yy_buffer_stack_max) = num_to_alloc;
+	}
+}
+
+/** Setup the input buffer state to scan directly from a user-specified character buffer.
+ * @param base the character buffer
+ * @param size the size in bytes of the character buffer
+ * 
+ * @return the newly allocated buffer state object. 
+ */
+YY_BUFFER_STATE yy_scan_buffer  (char * base, yy_size_t  size )
+{
+	YY_BUFFER_STATE b;
+    
+	if ( size < 2 ||
+	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
+	     base[size-1] != YY_END_OF_BUFFER_CHAR )
+		/* They forgot to leave room for the EOB's. */
+		return 0;
+
+	b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
+	if ( ! b )
+		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );
+
+	b->yy_buf_size = size - 2;	/* "- 2" to take care of EOB's */
+	b->yy_buf_pos = b->yy_ch_buf = base;
+	b->yy_is_our_buffer = 0;
+	b->yy_input_file = 0;
+	b->yy_n_chars = b->yy_buf_size;
+	b->yy_is_interactive = 0;
+	b->yy_at_bol = 1;
+	b->yy_fill_buffer = 0;
+	b->yy_buffer_status = YY_BUFFER_NEW;
+
+	yy_switch_to_buffer(b  );
+
+	return b;
+}
+
+/** Setup the input buffer state to scan a string. The next call to yylex() will
+ * scan from a @e copy of @a str.
+ * @param yystr a NUL-terminated string to scan
+ * 
+ * @return the newly allocated buffer state object.
+ * @note If you want to scan bytes that may contain NUL values, then use
+ *       yy_scan_bytes() instead.
+ */
+YY_BUFFER_STATE yy_scan_string (yyconst char * yystr )
+{
+    
+	return yy_scan_bytes(yystr,strlen(yystr) );
+}
+
+/** Setup the input buffer state to scan the given bytes. The next call to yylex() will
+ * scan from a @e copy of @a bytes.
+ * @param bytes the byte buffer to scan
+ * @param len the number of bytes in the buffer pointed to by @a bytes.
+ * 
+ * @return the newly allocated buffer state object.
+ */
+YY_BUFFER_STATE yy_scan_bytes  (yyconst char * yybytes, int  _yybytes_len )
+{
+	YY_BUFFER_STATE b;
+	char *buf;
+	yy_size_t n;
+	int i;
+    
+	/* Get memory for full buffer, including space for trailing EOB's. */
+	n = _yybytes_len + 2;
+	buf = (char *) yyalloc(n  );
+	if ( ! buf )
+		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );
+
+	for ( i = 0; i < _yybytes_len; ++i )
+		buf[i] = yybytes[i];
+
+	buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
+
+	b = yy_scan_buffer(buf,n );
+	if ( ! b )
+		YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" );
+
+	/* It's okay to grow etc. this buffer, and we should throw it
+	 * away when we're done.
+	 */
+	b->yy_is_our_buffer = 1;
+
+	return b;
+}
+
+#ifndef YY_EXIT_FAILURE
+#define YY_EXIT_FAILURE 2
+#endif
+
+static void yy_fatal_error (yyconst char* msg )
+{
+    	(void) fprintf( stderr, "%s\n", msg );
+	exit( YY_EXIT_FAILURE );
+}
+
+/* Redefine yyless() so it works in section 3 code. */
+
+#undef yyless
+#define yyless(n) \
+	do \
+		{ \
+		/* Undo effects of setting up yytext. */ \
+        int yyless_macro_arg = (n); \
+        YY_LESS_LINENO(yyless_macro_arg);\
+		yytext[yyleng] = (yy_hold_char); \
+		(yy_c_buf_p) = yytext + yyless_macro_arg; \
+		(yy_hold_char) = *(yy_c_buf_p); \
+		*(yy_c_buf_p) = '\0'; \
+		yyleng = yyless_macro_arg; \
+		} \
+	while ( 0 )
+
+/* Accessor  methods (get/set functions) to struct members. */
+
+/** Get the current line number.
+ * 
+ */
+int yyget_lineno  (void)
+{
+        
+    return yylineno;
+}
+
+/** Get the input stream.
+ * 
+ */
+FILE *yyget_in  (void)
+{
+        return yyin;
+}
+
+/** Get the output stream.
+ * 
+ */
+FILE *yyget_out  (void)
+{
+        return yyout;
+}
+
+/** Get the length of the current token.
+ * 
+ */
+int yyget_leng  (void)
+{
+        return yyleng;
+}
+
+/** Get the current token.
+ * 
+ */
+
+char *yyget_text  (void)
+{
+        return yytext;
+}
+
+/** Set the current line number.
+ * @param line_number
+ * 
+ */
+void yyset_lineno (int  line_number )
+{
+    
+    yylineno = line_number;
+}
+
+/** Set the input stream. This does not discard the current
+ * input buffer.
+ * @param in_str A readable stream.
+ * 
+ * @see yy_switch_to_buffer
+ */
+void yyset_in (FILE *  in_str )
+{
+        yyin = in_str ;
+}
+
+void yyset_out (FILE *  out_str )
+{
+        yyout = out_str ;
+}
+
+int yyget_debug  (void)
+{
+        return yy_flex_debug;
+}
+
+void yyset_debug (int  bdebug )
+{
+        yy_flex_debug = bdebug ;
+}
+
+static int yy_init_globals (void)
+{
+        /* Initialization is the same as for the non-reentrant scanner.
+     * This function is called from yylex_destroy(), so don't allocate here.
+     */
+
+    /* We do not touch yylineno unless the option is enabled. */
+    yylineno =  1;
+    
+    (yy_buffer_stack) = 0;
+    (yy_buffer_stack_top) = 0;
+    (yy_buffer_stack_max) = 0;
+    (yy_c_buf_p) = (char *) 0;
+    (yy_init) = 0;
+    (yy_start) = 0;
+
+/* Defined in main.c */
+#ifdef YY_STDINIT
+    yyin = stdin;
+    yyout = stdout;
+#else
+    yyin = (FILE *) 0;
+    yyout = (FILE *) 0;
+#endif
+
+    /* For future reference: Set errno on error, since we are called by
+     * yylex_init()
+     */
+    return 0;
+}
+
+/* yylex_destroy is for both reentrant and non-reentrant scanners. */
+int yylex_destroy  (void)
+{
+    
+    /* Pop the buffer stack, destroying each element. */
+	while(YY_CURRENT_BUFFER){
+		yy_delete_buffer(YY_CURRENT_BUFFER  );
+		YY_CURRENT_BUFFER_LVALUE = NULL;
+		yypop_buffer_state();
+	}
+
+	/* Destroy the stack itself. */
+	yyfree((yy_buffer_stack) );
+	(yy_buffer_stack) = NULL;
+
+    /* Reset the globals. This is important in a non-reentrant scanner so the next time
+     * yylex() is called, initialization will occur. */
+    yy_init_globals( );
+
+    return 0;
+}
+
+/*
+ * Internal utility routines.
+ */
+
+#ifndef yytext_ptr
+static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
+{
+	register int i;
+	for ( i = 0; i < n; ++i )
+		s1[i] = s2[i];
+}
+#endif
+
+#ifdef YY_NEED_STRLEN
+static int yy_flex_strlen (yyconst char * s )
+{
+	register int n;
+	for ( n = 0; s[n]; ++n )
+		;
+
+	return n;
+}
+#endif
+
+void *yyalloc (yy_size_t  size )
+{
+	return (void *) malloc( size );
+}
+
+void *yyrealloc  (void * ptr, yy_size_t  size )
+{
+	/* The cast to (char *) in the following accommodates both
+	 * implementations that use char* generic pointers, and those
+	 * that use void* generic pointers.  It works with the latter
+	 * because both ANSI C and C++ allow castless assignment from
+	 * any pointer type to void*, and deal with argument conversions
+	 * as though doing an assignment.
+	 */
+	return (void *) realloc( (char *) ptr, size );
+}
+
+void yyfree (void * ptr )
+{
+	free( (char *) ptr );	/* see yyrealloc() for (char *) cast */
+}
+
+#define YYTABLES_NAME "yytables"
+
+#line 222 "dtc-lexer.l"
+
+
+
+
+/*
+ * Stack of nested include file contexts.
+ */
+
+struct incl_file {
+	struct dtc_file *file;
+	YY_BUFFER_STATE yy_prev_buf;
+	int yy_prev_lineno;
+	struct incl_file *prev;
+};
+
+static struct incl_file *incl_file_stack;
+
+
+/*
+ * Detect infinite include recursion.
+ */
+#define MAX_INCLUDE_DEPTH	(100)
+
+static int incl_depth = 0;
+
+
+static void push_input_file(const char *filename)
+{
+	struct incl_file *incl_file;
+	struct dtc_file *newfile;
+	struct search_path search, *searchptr = NULL;
+
+	assert(filename);
+
+	if (incl_depth++ >= MAX_INCLUDE_DEPTH)
+		die("Includes nested too deeply");
+
+	if (srcpos_file) {
+		search.dir = srcpos_file->dir;
+		search.next = NULL;
+		search.prev = NULL;
+		searchptr = &search;
+	}
+
+	newfile = dtc_open_file(filename, searchptr);
+
+	incl_file = xmalloc(sizeof(struct incl_file));
+
+	/*
+	 * Save current context.
+	 */
+	incl_file->yy_prev_buf = YY_CURRENT_BUFFER;
+	incl_file->yy_prev_lineno = yylineno;
+	incl_file->file = srcpos_file;
+	incl_file->prev = incl_file_stack;
+
+	incl_file_stack = incl_file;
+
+	/*
+	 * Establish new context.
+	 */
+	srcpos_file = newfile;
+	yylineno = 1;
+	yyin = newfile->file;
+	yy_switch_to_buffer(yy_create_buffer(yyin,YY_BUF_SIZE));
+}
+
+
+static int pop_input_file(void)
+{
+	struct incl_file *incl_file;
+
+	if (incl_file_stack == 0)
+		return 0;
+
+	dtc_close_file(srcpos_file);
+
+	/*
+	 * Pop.
+	 */
+	--incl_depth;
+	incl_file = incl_file_stack;
+	incl_file_stack = incl_file->prev;
+
+	/*
+	 * Recover old context.
+	 */
+	yy_delete_buffer(YY_CURRENT_BUFFER);
+	yy_switch_to_buffer(incl_file->yy_prev_buf);
+	yylineno = incl_file->yy_prev_lineno;
+	srcpos_file = incl_file->file;
+	yyin = incl_file->file ? incl_file->file->file : NULL;
+
+	/*
+	 * Free old state.
+	 */
+	free(incl_file);
+
+	return 1;
+}
+
diff --git a/scripts/dtc/dtc-parser.tab.c_shipped b/scripts/dtc/dtc-parser.tab.c_shipped
new file mode 100644
index 00000000000..27129377e5d
--- /dev/null
+++ b/scripts/dtc/dtc-parser.tab.c_shipped
@@ -0,0 +1,2040 @@
+/* A Bison parser, made by GNU Bison 2.3.  */
+
+/* Skeleton implementation for Bison's Yacc-like parsers in C
+
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
+
+/* As a special exception, you may create a larger work that contains
+   part or all of the Bison parser skeleton and distribute that work
+   under terms of your choice, so long as that work isn't itself a
+   parser generator using the skeleton or a modified version thereof
+   as a parser skeleton.  Alternatively, if you modify or redistribute
+   the parser skeleton itself, you may (at your option) remove this
+   special exception, which will cause the skeleton and the resulting
+   Bison output files to be licensed under the GNU General Public
+   License without this special exception.
+
+   This special exception was added by the Free Software Foundation in
+   version 2.2 of Bison.  */
+
+/* C LALR(1) parser skeleton written by Richard Stallman, by
+   simplifying the original so-called "semantic" parser.  */
+
+/* All symbols defined below should begin with yy or YY, to avoid
+   infringing on user name space.  This should be done even for local
+   variables, as they might otherwise be expanded by user macros.
+   There are some unavoidable exceptions within include files to
+   define necessary library symbols; they are noted "INFRINGES ON
+   USER NAME SPACE" below.  */
+
+/* Identify Bison output.  */
+#define YYBISON 1
+
+/* Bison version.  */
+#define YYBISON_VERSION "2.3"
+
+/* Skeleton name.  */
+#define YYSKELETON_NAME "yacc.c"
+
+/* Pure parsers.  */
+#define YYPURE 0
+
+/* Using locations.  */
+#define YYLSP_NEEDED 1
+
+
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+   enum yytokentype {
+     DT_V1 = 258,
+     DT_MEMRESERVE = 259,
+     DT_PROPNODENAME = 260,
+     DT_LITERAL = 261,
+     DT_LEGACYLITERAL = 262,
+     DT_BASE = 263,
+     DT_BYTE = 264,
+     DT_STRING = 265,
+     DT_LABEL = 266,
+     DT_REF = 267,
+     DT_INCBIN = 268
+   };
+#endif
+/* Tokens.  */
+#define DT_V1 258
+#define DT_MEMRESERVE 259
+#define DT_PROPNODENAME 260
+#define DT_LITERAL 261
+#define DT_LEGACYLITERAL 262
+#define DT_BASE 263
+#define DT_BYTE 264
+#define DT_STRING 265
+#define DT_LABEL 266
+#define DT_REF 267
+#define DT_INCBIN 268
+
+
+
+
+/* Copy the first part of user declarations.  */
+#line 23 "dtc-parser.y"
+
+#include <stdio.h>
+
+#include "dtc.h"
+#include "srcpos.h"
+
+extern int yylex(void);
+
+extern struct boot_info *the_boot_info;
+extern int treesource_error;
+
+static unsigned long long eval_literal(const char *s, int base, int bits);
+
+
+/* Enabling traces.  */
+#ifndef YYDEBUG
+# define YYDEBUG 0
+#endif
+
+/* Enabling verbose error messages.  */
+#ifdef YYERROR_VERBOSE
+# undef YYERROR_VERBOSE
+# define YYERROR_VERBOSE 1
+#else
+# define YYERROR_VERBOSE 0
+#endif
+
+/* Enabling the token table.  */
+#ifndef YYTOKEN_TABLE
+# define YYTOKEN_TABLE 0
+#endif
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+#line 37 "dtc-parser.y"
+{
+	char *propnodename;
+	char *literal;
+	char *labelref;
+	unsigned int cbase;
+	uint8_t byte;
+	struct data data;
+
+	uint64_t addr;
+	cell_t cell;
+	struct property *prop;
+	struct property *proplist;
+	struct node *node;
+	struct node *nodelist;
+	struct reserve_info *re;
+}
+/* Line 187 of yacc.c.  */
+#line 153 "dtc-parser.tab.c"
+	YYSTYPE;
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+  int first_line;
+  int first_column;
+  int last_line;
+  int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+
+/* Copy the second part of user declarations.  */
+
+
+/* Line 216 of yacc.c.  */
+#line 178 "dtc-parser.tab.c"
+
+#ifdef short
+# undef short
+#endif
+
+#ifdef YYTYPE_UINT8
+typedef YYTYPE_UINT8 yytype_uint8;
+#else
+typedef unsigned char yytype_uint8;
+#endif
+
+#ifdef YYTYPE_INT8
+typedef YYTYPE_INT8 yytype_int8;
+#elif (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+typedef signed char yytype_int8;
+#else
+typedef short int yytype_int8;
+#endif
+
+#ifdef YYTYPE_UINT16
+typedef YYTYPE_UINT16 yytype_uint16;
+#else
+typedef unsigned short int yytype_uint16;
+#endif
+
+#ifdef YYTYPE_INT16
+typedef YYTYPE_INT16 yytype_int16;
+#else
+typedef short int yytype_int16;
+#endif
+
+#ifndef YYSIZE_T
+# ifdef __SIZE_TYPE__
+#  define YYSIZE_T __SIZE_TYPE__
+# elif defined size_t
+#  define YYSIZE_T size_t
+# elif ! defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+#  include <stddef.h> /* INFRINGES ON USER NAME SPACE */
+#  define YYSIZE_T size_t
+# else
+#  define YYSIZE_T unsigned int
+# endif
+#endif
+
+#define YYSIZE_MAXIMUM ((YYSIZE_T) -1)
+
+#ifndef YY_
+# if YYENABLE_NLS
+#  if ENABLE_NLS
+#   include <libintl.h> /* INFRINGES ON USER NAME SPACE */
+#   define YY_(msgid) dgettext ("bison-runtime", msgid)
+#  endif
+# endif
+# ifndef YY_
+#  define YY_(msgid) msgid
+# endif
+#endif
+
+/* Suppress unused-variable warnings by "using" E.  */
+#if ! defined lint || defined __GNUC__
+# define YYUSE(e) ((void) (e))
+#else
+# define YYUSE(e) /* empty */
+#endif
+
+/* Identity function, used to suppress warnings about constant conditions.  */
+#ifndef lint
+# define YYID(n) (n)
+#else
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static int
+YYID (int i)
+#else
+static int
+YYID (i)
+    int i;
+#endif
+{
+  return i;
+}
+#endif
+
+#if ! defined yyoverflow || YYERROR_VERBOSE
+
+/* The parser invokes alloca or malloc; define the necessary symbols.  */
+
+# ifdef YYSTACK_USE_ALLOCA
+#  if YYSTACK_USE_ALLOCA
+#   ifdef __GNUC__
+#    define YYSTACK_ALLOC __builtin_alloca
+#   elif defined __BUILTIN_VA_ARG_INCR
+#    include <alloca.h> /* INFRINGES ON USER NAME SPACE */
+#   elif defined _AIX
+#    define YYSTACK_ALLOC __alloca
+#   elif defined _MSC_VER
+#    include <malloc.h> /* INFRINGES ON USER NAME SPACE */
+#    define alloca _alloca
+#   else
+#    define YYSTACK_ALLOC alloca
+#    if ! defined _ALLOCA_H && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+#     include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+#     ifndef _STDLIB_H
+#      define _STDLIB_H 1
+#     endif
+#    endif
+#   endif
+#  endif
+# endif
+
+# ifdef YYSTACK_ALLOC
+   /* Pacify GCC's `empty if-body' warning.  */
+#  define YYSTACK_FREE(Ptr) do { /* empty */; } while (YYID (0))
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+    /* The OS might guarantee only one guard page at the bottom of the stack,
+       and a page size can be as small as 4096 bytes.  So we cannot safely
+       invoke alloca (N) if N exceeds 4096.  Use a slightly smaller number
+       to allow for a few compiler-allocated temporary stack slots.  */
+#   define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */
+#  endif
+# else
+#  define YYSTACK_ALLOC YYMALLOC
+#  define YYSTACK_FREE YYFREE
+#  ifndef YYSTACK_ALLOC_MAXIMUM
+#   define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM
+#  endif
+#  if (defined __cplusplus && ! defined _STDLIB_H \
+       && ! ((defined YYMALLOC || defined malloc) \
+	     && (defined YYFREE || defined free)))
+#   include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
+#   ifndef _STDLIB_H
+#    define _STDLIB_H 1
+#   endif
+#  endif
+#  ifndef YYMALLOC
+#   define YYMALLOC malloc
+#   if ! defined malloc && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+#  ifndef YYFREE
+#   define YYFREE free
+#   if ! defined free && ! defined _STDLIB_H && (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+void free (void *); /* INFRINGES ON USER NAME SPACE */
+#   endif
+#  endif
+# endif
+#endif /* ! defined yyoverflow || YYERROR_VERBOSE */
+
+
+#if (! defined yyoverflow \
+     && (! defined __cplusplus \
+	 || (defined YYLTYPE_IS_TRIVIAL && YYLTYPE_IS_TRIVIAL \
+	     && defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL)))
+
+/* A type that is properly aligned for any stack member.  */
+union yyalloc
+{
+  yytype_int16 yyss;
+  YYSTYPE yyvs;
+    YYLTYPE yyls;
+};
+
+/* The size of the maximum gap between one aligned stack and the next.  */
+# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1)
+
+/* The size of an array large to enough to hold all stacks, each with
+   N elements.  */
+# define YYSTACK_BYTES(N) \
+     ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE) + sizeof (YYLTYPE)) \
+      + 2 * YYSTACK_GAP_MAXIMUM)
+
+/* Copy COUNT objects from FROM to TO.  The source and destination do
+   not overlap.  */
+# ifndef YYCOPY
+#  if defined __GNUC__ && 1 < __GNUC__
+#   define YYCOPY(To, From, Count) \
+      __builtin_memcpy (To, From, (Count) * sizeof (*(From)))
+#  else
+#   define YYCOPY(To, From, Count)		\
+      do					\
+	{					\
+	  YYSIZE_T yyi;				\
+	  for (yyi = 0; yyi < (Count); yyi++)	\
+	    (To)[yyi] = (From)[yyi];		\
+	}					\
+      while (YYID (0))
+#  endif
+# endif
+
+/* Relocate STACK from its old location to the new one.  The
+   local variables YYSIZE and YYSTACKSIZE give the old and new number of
+   elements in the stack, and YYPTR gives the new location of the
+   stack.  Advance YYPTR to a properly aligned location for the next
+   stack.  */
+# define YYSTACK_RELOCATE(Stack)					\
+    do									\
+      {									\
+	YYSIZE_T yynewbytes;						\
+	YYCOPY (&yyptr->Stack, Stack, yysize);				\
+	Stack = &yyptr->Stack;						\
+	yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \
+	yyptr += yynewbytes / sizeof (*yyptr);				\
+      }									\
+    while (YYID (0))
+
+#endif
+
+/* YYFINAL -- State number of the termination state.  */
+#define YYFINAL  9
+/* YYLAST -- Last index in YYTABLE.  */
+#define YYLAST   73
+
+/* YYNTOKENS -- Number of terminals.  */
+#define YYNTOKENS  27
+/* YYNNTS -- Number of nonterminals.  */
+#define YYNNTS  20
+/* YYNRULES -- Number of rules.  */
+#define YYNRULES  45
+/* YYNRULES -- Number of states.  */
+#define YYNSTATES  76
+
+/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX.  */
+#define YYUNDEFTOK  2
+#define YYMAXUTOK   268
+
+#define YYTRANSLATE(YYX)						\
+  ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK)
+
+/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX.  */
+static const yytype_uint8 yytranslate[] =
+{
+       0,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+      24,    26,     2,     2,    25,    15,     2,    16,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,    14,
+      20,    19,    21,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,    22,     2,    23,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,    17,     2,    18,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     2,     2,     2,     2,
+       2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
+       5,     6,     7,     8,     9,    10,    11,    12,    13
+};
+
+#if YYDEBUG
+/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in
+   YYRHS.  */
+static const yytype_uint8 yyprhs[] =
+{
+       0,     0,     3,     8,    11,    12,    15,    21,    22,    25,
+      27,    34,    36,    38,    41,    47,    48,    51,    57,    61,
+      64,    69,    74,    77,    87,    93,    96,    97,   100,   103,
+     104,   107,   110,   113,   114,   116,   118,   121,   122,   125,
+     128,   129,   132,   135,   139,   140
+};
+
+/* YYRHS -- A `-1'-separated list of the rules' RHS.  */
+static const yytype_int8 yyrhs[] =
+{
+      28,     0,    -1,     3,    14,    29,    34,    -1,    31,    34,
+      -1,    -1,    30,    29,    -1,    46,     4,    33,    33,    14,
+      -1,    -1,    32,    31,    -1,    30,    -1,    46,     4,    33,
+      15,    33,    14,    -1,     6,    -1,     7,    -1,    16,    35,
+      -1,    17,    36,    44,    18,    14,    -1,    -1,    36,    37,
+      -1,    46,     5,    19,    38,    14,    -1,    46,     5,    14,
+      -1,    39,    10,    -1,    39,    20,    40,    21,    -1,    39,
+      22,    43,    23,    -1,    39,    12,    -1,    39,    13,    24,
+      10,    25,    33,    25,    33,    26,    -1,    39,    13,    24,
+      10,    26,    -1,    38,    11,    -1,    -1,    38,    25,    -1,
+      39,    11,    -1,    -1,    40,    42,    -1,    40,    12,    -1,
+      40,    11,    -1,    -1,     8,    -1,     6,    -1,    41,     7,
+      -1,    -1,    43,     9,    -1,    43,    11,    -1,    -1,    45,
+      44,    -1,    45,    37,    -1,    46,     5,    35,    -1,    -1,
+      11,    -1
+};
+
+/* YYRLINE[YYN] -- source line where rule number YYN was defined.  */
+static const yytype_uint16 yyrline[] =
+{
+       0,    89,    89,    93,   101,   104,   111,   119,   122,   129,
+     133,   140,   144,   151,   158,   166,   169,   176,   180,   187,
+     191,   195,   199,   203,   220,   231,   239,   242,   246,   254,
+     257,   261,   266,   274,   277,   281,   285,   293,   296,   300,
+     308,   311,   315,   323,   331,   334
+};
+#endif
+
+#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
+   First, the terminals, then, starting at YYNTOKENS, nonterminals.  */
+static const char *const yytname[] =
+{
+  "$end", "error", "$undefined", "DT_V1", "DT_MEMRESERVE",
+  "DT_PROPNODENAME", "DT_LITERAL", "DT_LEGACYLITERAL", "DT_BASE",
+  "DT_BYTE", "DT_STRING", "DT_LABEL", "DT_REF", "DT_INCBIN", "';'", "'-'",
+  "'/'", "'{'", "'}'", "'='", "'<'", "'>'", "'['", "']'", "'('", "','",
+  "')'", "$accept", "sourcefile", "memreserves", "memreserve",
+  "v0_memreserves", "v0_memreserve", "addr", "devicetree", "nodedef",
+  "proplist", "propdef", "propdata", "propdataprefix", "celllist",
+  "cellbase", "cellval", "bytestring", "subnodes", "subnode", "label", 0
+};
+#endif
+
+# ifdef YYPRINT
+/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to
+   token YYLEX-NUM.  */
+static const yytype_uint16 yytoknum[] =
+{
+       0,   256,   257,   258,   259,   260,   261,   262,   263,   264,
+     265,   266,   267,   268,    59,    45,    47,   123,   125,    61,
+      60,    62,    91,    93,    40,    44,    41
+};
+# endif
+
+/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives.  */
+static const yytype_uint8 yyr1[] =
+{
+       0,    27,    28,    28,    29,    29,    30,    31,    31,    32,
+      32,    33,    33,    34,    35,    36,    36,    37,    37,    38,
+      38,    38,    38,    38,    38,    38,    39,    39,    39,    40,
+      40,    40,    40,    41,    41,    42,    42,    43,    43,    43,
+      44,    44,    44,    45,    46,    46
+};
+
+/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN.  */
+static const yytype_uint8 yyr2[] =
+{
+       0,     2,     4,     2,     0,     2,     5,     0,     2,     1,
+       6,     1,     1,     2,     5,     0,     2,     5,     3,     2,
+       4,     4,     2,     9,     5,     2,     0,     2,     2,     0,
+       2,     2,     2,     0,     1,     1,     2,     0,     2,     2,
+       0,     2,     2,     3,     0,     1
+};
+
+/* YYDEFACT[STATE-NAME] -- Default rule to reduce with in state
+   STATE-NUM when YYTABLE doesn't specify something else to do.  Zero
+   means the default is an error.  */
+static const yytype_uint8 yydefact[] =
+{
+       7,     0,    45,     0,     9,     0,     7,     0,     4,     1,
+       0,     3,     8,     0,     0,     4,     0,    15,    13,    11,
+      12,     0,     2,     5,     0,    40,     0,     0,     0,    16,
+       0,    40,     0,     0,     6,     0,    42,    41,     0,    10,
+      14,    18,    26,    43,     0,     0,    25,    17,    27,    19,
+      28,    22,     0,    29,    37,     0,    33,     0,     0,    35,
+      34,    32,    31,    20,     0,    30,    38,    39,    21,     0,
+      24,    36,     0,     0,     0,    23
+};
+
+/* YYDEFGOTO[NTERM-NUM].  */
+static const yytype_int8 yydefgoto[] =
+{
+      -1,     3,    14,     4,     5,     6,    27,    11,    18,    25,
+      29,    44,    45,    56,    64,    65,    57,    30,    31,     7
+};
+
+/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing
+   STATE-NUM.  */
+#define YYPACT_NINF -14
+static const yytype_int8 yypact[] =
+{
+      30,   -11,   -14,     7,   -14,    -1,    27,    13,    27,   -14,
+       8,   -14,   -14,    40,    -1,    27,    35,   -14,   -14,   -14,
+     -14,    21,   -14,   -14,    40,    24,    40,    28,    40,   -14,
+      32,    24,    46,    38,   -14,    39,   -14,   -14,    26,   -14,
+     -14,   -14,   -14,   -14,    -9,    10,   -14,   -14,   -14,   -14,
+     -14,   -14,    31,   -14,   -14,    44,    -2,     3,    23,   -14,
+     -14,   -14,   -14,   -14,    50,   -14,   -14,   -14,   -14,    40,
+     -14,   -14,    33,    40,    36,   -14
+};
+
+/* YYPGOTO[NTERM-NUM].  */
+static const yytype_int8 yypgoto[] =
+{
+     -14,   -14,    48,    29,    53,   -14,   -13,    47,    34,   -14,
+      37,   -14,   -14,   -14,   -14,   -14,   -14,    42,   -14,    -7
+};
+
+/* YYTABLE[YYPACT[STATE-NUM]].  What to do in state STATE-NUM.  If
+   positive, shift that token.  If negative, reduce the rule which
+   number is the opposite.  If zero, do what YYDEFACT says.
+   If YYTABLE_NINF, syntax error.  */
+#define YYTABLE_NINF -45
+static const yytype_int8 yytable[] =
+{
+      21,    16,    46,     8,    59,    47,    60,     9,    16,    61,
+      62,    28,    66,    33,    67,    10,    48,    13,    32,    63,
+      49,    50,    51,    52,    32,    17,    68,    19,    20,   -44,
+      53,   -44,    54,     1,   -44,     2,    26,    15,     2,    24,
+      41,     2,    34,    17,    15,    42,    19,    20,    69,    70,
+      35,    38,    39,    40,    58,    55,    72,    71,    73,    12,
+      74,    22,    75,    23,     0,     0,     0,     0,    36,     0,
+       0,     0,    43,    37
+};
+
+static const yytype_int8 yycheck[] =
+{
+      13,     8,    11,    14,     6,    14,     8,     0,    15,    11,
+      12,    24,     9,    26,    11,    16,    25,     4,    25,    21,
+      10,    11,    12,    13,    31,    17,    23,     6,     7,     5,
+      20,     4,    22,     3,     4,    11,    15,     8,    11,     4,
+      14,    11,    14,    17,    15,    19,     6,     7,    25,    26,
+      18,     5,    14,    14,    10,    24,    69,     7,    25,     6,
+      73,    14,    26,    15,    -1,    -1,    -1,    -1,    31,    -1,
+      -1,    -1,    38,    31
+};
+
+/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing
+   symbol of state STATE-NUM.  */
+static const yytype_uint8 yystos[] =
+{
+       0,     3,    11,    28,    30,    31,    32,    46,    14,     0,
+      16,    34,    31,     4,    29,    30,    46,    17,    35,     6,
+       7,    33,    34,    29,     4,    36,    15,    33,    33,    37,
+      44,    45,    46,    33,    14,    18,    37,    44,     5,    14,
+      14,    14,    19,    35,    38,    39,    11,    14,    25,    10,
+      11,    12,    13,    20,    22,    24,    40,    43,    10,     6,
+       8,    11,    12,    21,    41,    42,     9,    11,    23,    25,
+      26,     7,    33,    25,    33,    26
+};
+
+#define yyerrok		(yyerrstatus = 0)
+#define yyclearin	(yychar = YYEMPTY)
+#define YYEMPTY		(-2)
+#define YYEOF		0
+
+#define YYACCEPT	goto yyacceptlab
+#define YYABORT		goto yyabortlab
+#define YYERROR		goto yyerrorlab
+
+
+/* Like YYERROR except do call yyerror.  This remains here temporarily
+   to ease the transition to the new meaning of YYERROR, for GCC.
+   Once GCC version 2 has supplanted version 1, this can go.  */
+
+#define YYFAIL		goto yyerrlab
+
+#define YYRECOVERING()  (!!yyerrstatus)
+
+#define YYBACKUP(Token, Value)					\
+do								\
+  if (yychar == YYEMPTY && yylen == 1)				\
+    {								\
+      yychar = (Token);						\
+      yylval = (Value);						\
+      yytoken = YYTRANSLATE (yychar);				\
+      YYPOPSTACK (1);						\
+      goto yybackup;						\
+    }								\
+  else								\
+    {								\
+      yyerror (YY_("syntax error: cannot back up")); \
+      YYERROR;							\
+    }								\
+while (YYID (0))
+
+
+#define YYTERROR	1
+#define YYERRCODE	256
+
+
+/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N].
+   If N is 0, then set CURRENT to the empty location which ends
+   the previous symbol: RHS[0] (always defined).  */
+
+#define YYRHSLOC(Rhs, K) ((Rhs)[K])
+#ifndef YYLLOC_DEFAULT
+# define YYLLOC_DEFAULT(Current, Rhs, N)				\
+    do									\
+      if (YYID (N))                                                    \
+	{								\
+	  (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;	\
+	  (Current).first_column = YYRHSLOC (Rhs, 1).first_column;	\
+	  (Current).last_line    = YYRHSLOC (Rhs, N).last_line;		\
+	  (Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\
+	}								\
+      else								\
+	{								\
+	  (Current).first_line   = (Current).last_line   =		\
+	    YYRHSLOC (Rhs, 0).last_line;				\
+	  (Current).first_column = (Current).last_column =		\
+	    YYRHSLOC (Rhs, 0).last_column;				\
+	}								\
+    while (YYID (0))
+#endif
+
+
+/* YY_LOCATION_PRINT -- Print the location on the stream.
+   This macro was not mandated originally: define only if we know
+   we won't break user code: when these are the locations we know.  */
+
+#ifndef YY_LOCATION_PRINT
+# if YYLTYPE_IS_TRIVIAL
+#  define YY_LOCATION_PRINT(File, Loc)			\
+     fprintf (File, "%d.%d-%d.%d",			\
+	      (Loc).first_line, (Loc).first_column,	\
+	      (Loc).last_line,  (Loc).last_column)
+# else
+#  define YY_LOCATION_PRINT(File, Loc) ((void) 0)
+# endif
+#endif
+
+
+/* YYLEX -- calling `yylex' with the right arguments.  */
+
+#ifdef YYLEX_PARAM
+# define YYLEX yylex (YYLEX_PARAM)
+#else
+# define YYLEX yylex ()
+#endif
+
+/* Enable debugging if requested.  */
+#if YYDEBUG
+
+# ifndef YYFPRINTF
+#  include <stdio.h> /* INFRINGES ON USER NAME SPACE */
+#  define YYFPRINTF fprintf
+# endif
+
+# define YYDPRINTF(Args)			\
+do {						\
+  if (yydebug)					\
+    YYFPRINTF Args;				\
+} while (YYID (0))
+
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)			  \
+do {									  \
+  if (yydebug)								  \
+    {									  \
+      YYFPRINTF (stderr, "%s ", Title);					  \
+      yy_symbol_print (stderr,						  \
+		  Type, Value, Location); \
+      YYFPRINTF (stderr, "\n");						  \
+    }									  \
+} while (YYID (0))
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT.  |
+`--------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp)
+#else
+static void
+yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp)
+    FILE *yyoutput;
+    int yytype;
+    YYSTYPE const * const yyvaluep;
+    YYLTYPE const * const yylocationp;
+#endif
+{
+  if (!yyvaluep)
+    return;
+  YYUSE (yylocationp);
+# ifdef YYPRINT
+  if (yytype < YYNTOKENS)
+    YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep);
+# else
+  YYUSE (yyoutput);
+# endif
+  switch (yytype)
+    {
+      default:
+	break;
+    }
+}
+
+
+/*--------------------------------.
+| Print this symbol on YYOUTPUT.  |
+`--------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep, YYLTYPE const * const yylocationp)
+#else
+static void
+yy_symbol_print (yyoutput, yytype, yyvaluep, yylocationp)
+    FILE *yyoutput;
+    int yytype;
+    YYSTYPE const * const yyvaluep;
+    YYLTYPE const * const yylocationp;
+#endif
+{
+  if (yytype < YYNTOKENS)
+    YYFPRINTF (yyoutput, "token %s (", yytname[yytype]);
+  else
+    YYFPRINTF (yyoutput, "nterm %s (", yytname[yytype]);
+
+  YY_LOCATION_PRINT (yyoutput, *yylocationp);
+  YYFPRINTF (yyoutput, ": ");
+  yy_symbol_value_print (yyoutput, yytype, yyvaluep, yylocationp);
+  YYFPRINTF (yyoutput, ")");
+}
+
+/*------------------------------------------------------------------.
+| yy_stack_print -- Print the state stack from its BOTTOM up to its |
+| TOP (included).                                                   |
+`------------------------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_stack_print (yytype_int16 *bottom, yytype_int16 *top)
+#else
+static void
+yy_stack_print (bottom, top)
+    yytype_int16 *bottom;
+    yytype_int16 *top;
+#endif
+{
+  YYFPRINTF (stderr, "Stack now");
+  for (; bottom <= top; ++bottom)
+    YYFPRINTF (stderr, " %d", *bottom);
+  YYFPRINTF (stderr, "\n");
+}
+
+# define YY_STACK_PRINT(Bottom, Top)				\
+do {								\
+  if (yydebug)							\
+    yy_stack_print ((Bottom), (Top));				\
+} while (YYID (0))
+
+
+/*------------------------------------------------.
+| Report that the YYRULE is going to be reduced.  |
+`------------------------------------------------*/
+
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yy_reduce_print (YYSTYPE *yyvsp, YYLTYPE *yylsp, int yyrule)
+#else
+static void
+yy_reduce_print (yyvsp, yylsp, yyrule)
+    YYSTYPE *yyvsp;
+    YYLTYPE *yylsp;
+    int yyrule;
+#endif
+{
+  int yynrhs = yyr2[yyrule];
+  int yyi;
+  unsigned long int yylno = yyrline[yyrule];
+  YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n",
+	     yyrule - 1, yylno);
+  /* The symbols being reduced.  */
+  for (yyi = 0; yyi < yynrhs; yyi++)
+    {
+      fprintf (stderr, "   $%d = ", yyi + 1);
+      yy_symbol_print (stderr, yyrhs[yyprhs[yyrule] + yyi],
+		       &(yyvsp[(yyi + 1) - (yynrhs)])
+		       , &(yylsp[(yyi + 1) - (yynrhs)])		       );
+      fprintf (stderr, "\n");
+    }
+}
+
+# define YY_REDUCE_PRINT(Rule)		\
+do {					\
+  if (yydebug)				\
+    yy_reduce_print (yyvsp, yylsp, Rule); \
+} while (YYID (0))
+
+/* Nonzero means print parse trace.  It is left uninitialized so that
+   multiple parsers can coexist.  */
+int yydebug;
+#else /* !YYDEBUG */
+# define YYDPRINTF(Args)
+# define YY_SYMBOL_PRINT(Title, Type, Value, Location)
+# define YY_STACK_PRINT(Bottom, Top)
+# define YY_REDUCE_PRINT(Rule)
+#endif /* !YYDEBUG */
+
+
+/* YYINITDEPTH -- initial size of the parser's stacks.  */
+#ifndef	YYINITDEPTH
+# define YYINITDEPTH 200
+#endif
+
+/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only
+   if the built-in stack extension method is used).
+
+   Do not make this value too large; the results are undefined if
+   YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH)
+   evaluated with infinite-precision integer arithmetic.  */
+
+#ifndef YYMAXDEPTH
+# define YYMAXDEPTH 10000
+#endif
+
+
+
+#if YYERROR_VERBOSE
+
+# ifndef yystrlen
+#  if defined __GLIBC__ && defined _STRING_H
+#   define yystrlen strlen
+#  else
+/* Return the length of YYSTR.  */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static YYSIZE_T
+yystrlen (const char *yystr)
+#else
+static YYSIZE_T
+yystrlen (yystr)
+    const char *yystr;
+#endif
+{
+  YYSIZE_T yylen;
+  for (yylen = 0; yystr[yylen]; yylen++)
+    continue;
+  return yylen;
+}
+#  endif
+# endif
+
+# ifndef yystpcpy
+#  if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE
+#   define yystpcpy stpcpy
+#  else
+/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in
+   YYDEST.  */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static char *
+yystpcpy (char *yydest, const char *yysrc)
+#else
+static char *
+yystpcpy (yydest, yysrc)
+    char *yydest;
+    const char *yysrc;
+#endif
+{
+  char *yyd = yydest;
+  const char *yys = yysrc;
+
+  while ((*yyd++ = *yys++) != '\0')
+    continue;
+
+  return yyd - 1;
+}
+#  endif
+# endif
+
+# ifndef yytnamerr
+/* Copy to YYRES the contents of YYSTR after stripping away unnecessary
+   quotes and backslashes, so that it's suitable for yyerror.  The
+   heuristic is that double-quoting is unnecessary unless the string
+   contains an apostrophe, a comma, or backslash (other than
+   backslash-backslash).  YYSTR is taken from yytname.  If YYRES is
+   null, do not copy; instead, return the length of what the result
+   would have been.  */
+static YYSIZE_T
+yytnamerr (char *yyres, const char *yystr)
+{
+  if (*yystr == '"')
+    {
+      YYSIZE_T yyn = 0;
+      char const *yyp = yystr;
+
+      for (;;)
+	switch (*++yyp)
+	  {
+	  case '\'':
+	  case ',':
+	    goto do_not_strip_quotes;
+
+	  case '\\':
+	    if (*++yyp != '\\')
+	      goto do_not_strip_quotes;
+	    /* Fall through.  */
+	  default:
+	    if (yyres)
+	      yyres[yyn] = *yyp;
+	    yyn++;
+	    break;
+
+	  case '"':
+	    if (yyres)
+	      yyres[yyn] = '\0';
+	    return yyn;
+	  }
+    do_not_strip_quotes: ;
+    }
+
+  if (! yyres)
+    return yystrlen (yystr);
+
+  return yystpcpy (yyres, yystr) - yyres;
+}
+# endif
+
+/* Copy into YYRESULT an error message about the unexpected token
+   YYCHAR while in state YYSTATE.  Return the number of bytes copied,
+   including the terminating null byte.  If YYRESULT is null, do not
+   copy anything; just return the number of bytes that would be
+   copied.  As a special case, return 0 if an ordinary "syntax error"
+   message will do.  Return YYSIZE_MAXIMUM if overflow occurs during
+   size calculation.  */
+static YYSIZE_T
+yysyntax_error (char *yyresult, int yystate, int yychar)
+{
+  int yyn = yypact[yystate];
+
+  if (! (YYPACT_NINF < yyn && yyn <= YYLAST))
+    return 0;
+  else
+    {
+      int yytype = YYTRANSLATE (yychar);
+      YYSIZE_T yysize0 = yytnamerr (0, yytname[yytype]);
+      YYSIZE_T yysize = yysize0;
+      YYSIZE_T yysize1;
+      int yysize_overflow = 0;
+      enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 };
+      char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM];
+      int yyx;
+
+# if 0
+      /* This is so xgettext sees the translatable formats that are
+	 constructed on the fly.  */
+      YY_("syntax error, unexpected %s");
+      YY_("syntax error, unexpected %s, expecting %s");
+      YY_("syntax error, unexpected %s, expecting %s or %s");
+      YY_("syntax error, unexpected %s, expecting %s or %s or %s");
+      YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s");
+# endif
+      char *yyfmt;
+      char const *yyf;
+      static char const yyunexpected[] = "syntax error, unexpected %s";
+      static char const yyexpecting[] = ", expecting %s";
+      static char const yyor[] = " or %s";
+      char yyformat[sizeof yyunexpected
+		    + sizeof yyexpecting - 1
+		    + ((YYERROR_VERBOSE_ARGS_MAXIMUM - 2)
+		       * (sizeof yyor - 1))];
+      char const *yyprefix = yyexpecting;
+
+      /* Start YYX at -YYN if negative to avoid negative indexes in
+	 YYCHECK.  */
+      int yyxbegin = yyn < 0 ? -yyn : 0;
+
+      /* Stay within bounds of both yycheck and yytname.  */
+      int yychecklim = YYLAST - yyn + 1;
+      int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS;
+      int yycount = 1;
+
+      yyarg[0] = yytname[yytype];
+      yyfmt = yystpcpy (yyformat, yyunexpected);
+
+      for (yyx = yyxbegin; yyx < yyxend; ++yyx)
+	if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR)
+	  {
+	    if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM)
+	      {
+		yycount = 1;
+		yysize = yysize0;
+		yyformat[sizeof yyunexpected - 1] = '\0';
+		break;
+	      }
+	    yyarg[yycount++] = yytname[yyx];
+	    yysize1 = yysize + yytnamerr (0, yytname[yyx]);
+	    yysize_overflow |= (yysize1 < yysize);
+	    yysize = yysize1;
+	    yyfmt = yystpcpy (yyfmt, yyprefix);
+	    yyprefix = yyor;
+	  }
+
+      yyf = YY_(yyformat);
+      yysize1 = yysize + yystrlen (yyf);
+      yysize_overflow |= (yysize1 < yysize);
+      yysize = yysize1;
+
+      if (yysize_overflow)
+	return YYSIZE_MAXIMUM;
+
+      if (yyresult)
+	{
+	  /* Avoid sprintf, as that infringes on the user's name space.
+	     Don't have undefined behavior even if the translation
+	     produced a string with the wrong number of "%s"s.  */
+	  char *yyp = yyresult;
+	  int yyi = 0;
+	  while ((*yyp = *yyf) != '\0')
+	    {
+	      if (*yyp == '%' && yyf[1] == 's' && yyi < yycount)
+		{
+		  yyp += yytnamerr (yyp, yyarg[yyi++]);
+		  yyf += 2;
+		}
+	      else
+		{
+		  yyp++;
+		  yyf++;
+		}
+	    }
+	}
+      return yysize;
+    }
+}
+#endif /* YYERROR_VERBOSE */
+
+
+/*-----------------------------------------------.
+| Release the memory associated to this symbol.  |
+`-----------------------------------------------*/
+
+/*ARGSUSED*/
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+static void
+yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep, YYLTYPE *yylocationp)
+#else
+static void
+yydestruct (yymsg, yytype, yyvaluep, yylocationp)
+    const char *yymsg;
+    int yytype;
+    YYSTYPE *yyvaluep;
+    YYLTYPE *yylocationp;
+#endif
+{
+  YYUSE (yyvaluep);
+  YYUSE (yylocationp);
+
+  if (!yymsg)
+    yymsg = "Deleting";
+  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
+
+  switch (yytype)
+    {
+
+      default:
+	break;
+    }
+}
+
+
+/* Prevent warnings from -Wmissing-prototypes.  */
+
+#ifdef YYPARSE_PARAM
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void *YYPARSE_PARAM);
+#else
+int yyparse ();
+#endif
+#else /* ! YYPARSE_PARAM */
+#if defined __STDC__ || defined __cplusplus
+int yyparse (void);
+#else
+int yyparse ();
+#endif
+#endif /* ! YYPARSE_PARAM */
+
+
+
+/* The look-ahead symbol.  */
+int yychar;
+
+/* The semantic value of the look-ahead symbol.  */
+YYSTYPE yylval;
+
+/* Number of syntax errors so far.  */
+int yynerrs;
+/* Location data for the look-ahead symbol.  */
+YYLTYPE yylloc;
+
+
+
+/*----------.
+| yyparse.  |
+`----------*/
+
+#ifdef YYPARSE_PARAM
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void *YYPARSE_PARAM)
+#else
+int
+yyparse (YYPARSE_PARAM)
+    void *YYPARSE_PARAM;
+#endif
+#else /* ! YYPARSE_PARAM */
+#if (defined __STDC__ || defined __C99__FUNC__ \
+     || defined __cplusplus || defined _MSC_VER)
+int
+yyparse (void)
+#else
+int
+yyparse ()
+
+#endif
+#endif
+{
+  
+  int yystate;
+  int yyn;
+  int yyresult;
+  /* Number of tokens to shift before error messages enabled.  */
+  int yyerrstatus;
+  /* Look-ahead token as an internal (translated) token number.  */
+  int yytoken = 0;
+#if YYERROR_VERBOSE
+  /* Buffer for error messages, and its allocated size.  */
+  char yymsgbuf[128];
+  char *yymsg = yymsgbuf;
+  YYSIZE_T yymsg_alloc = sizeof yymsgbuf;
+#endif
+
+  /* Three stacks and their tools:
+     `yyss': related to states,
+     `yyvs': related to semantic values,
+     `yyls': related to locations.
+
+     Refer to the stacks thru separate pointers, to allow yyoverflow
+     to reallocate them elsewhere.  */
+
+  /* The state stack.  */
+  yytype_int16 yyssa[YYINITDEPTH];
+  yytype_int16 *yyss = yyssa;
+  yytype_int16 *yyssp;
+
+  /* The semantic value stack.  */
+  YYSTYPE yyvsa[YYINITDEPTH];
+  YYSTYPE *yyvs = yyvsa;
+  YYSTYPE *yyvsp;
+
+  /* The location stack.  */
+  YYLTYPE yylsa[YYINITDEPTH];
+  YYLTYPE *yyls = yylsa;
+  YYLTYPE *yylsp;
+  /* The locations where the error started and ended.  */
+  YYLTYPE yyerror_range[2];
+
+#define YYPOPSTACK(N)   (yyvsp -= (N), yyssp -= (N), yylsp -= (N))
+
+  YYSIZE_T yystacksize = YYINITDEPTH;
+
+  /* The variables used to return semantic value and location from the
+     action routines.  */
+  YYSTYPE yyval;
+  YYLTYPE yyloc;
+
+  /* The number of symbols on the RHS of the reduced rule.
+     Keep to zero when no symbol should be popped.  */
+  int yylen = 0;
+
+  YYDPRINTF ((stderr, "Starting parse\n"));
+
+  yystate = 0;
+  yyerrstatus = 0;
+  yynerrs = 0;
+  yychar = YYEMPTY;		/* Cause a token to be read.  */
+
+  /* Initialize stack pointers.
+     Waste one element of value and location stack
+     so that they stay on the same level as the state stack.
+     The wasted elements are never initialized.  */
+
+  yyssp = yyss;
+  yyvsp = yyvs;
+  yylsp = yyls;
+#if YYLTYPE_IS_TRIVIAL
+  /* Initialize the default location before parsing starts.  */
+  yylloc.first_line   = yylloc.last_line   = 1;
+  yylloc.first_column = yylloc.last_column = 0;
+#endif
+
+  goto yysetstate;
+
+/*------------------------------------------------------------.
+| yynewstate -- Push a new state, which is found in yystate.  |
+`------------------------------------------------------------*/
+ yynewstate:
+  /* In all cases, when you get here, the value and location stacks
+     have just been pushed.  So pushing a state here evens the stacks.  */
+  yyssp++;
+
+ yysetstate:
+  *yyssp = yystate;
+
+  if (yyss + yystacksize - 1 <= yyssp)
+    {
+      /* Get the current used size of the three stacks, in elements.  */
+      YYSIZE_T yysize = yyssp - yyss + 1;
+
+#ifdef yyoverflow
+      {
+	/* Give user a chance to reallocate the stack.  Use copies of
+	   these so that the &'s don't force the real ones into
+	   memory.  */
+	YYSTYPE *yyvs1 = yyvs;
+	yytype_int16 *yyss1 = yyss;
+	YYLTYPE *yyls1 = yyls;
+
+	/* Each stack pointer address is followed by the size of the
+	   data in use in that stack, in bytes.  This used to be a
+	   conditional around just the two extra args, but that might
+	   be undefined if yyoverflow is a macro.  */
+	yyoverflow (YY_("memory exhausted"),
+		    &yyss1, yysize * sizeof (*yyssp),
+		    &yyvs1, yysize * sizeof (*yyvsp),
+		    &yyls1, yysize * sizeof (*yylsp),
+		    &yystacksize);
+	yyls = yyls1;
+	yyss = yyss1;
+	yyvs = yyvs1;
+      }
+#else /* no yyoverflow */
+# ifndef YYSTACK_RELOCATE
+      goto yyexhaustedlab;
+# else
+      /* Extend the stack our own way.  */
+      if (YYMAXDEPTH <= yystacksize)
+	goto yyexhaustedlab;
+      yystacksize *= 2;
+      if (YYMAXDEPTH < yystacksize)
+	yystacksize = YYMAXDEPTH;
+
+      {
+	yytype_int16 *yyss1 = yyss;
+	union yyalloc *yyptr =
+	  (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize));
+	if (! yyptr)
+	  goto yyexhaustedlab;
+	YYSTACK_RELOCATE (yyss);
+	YYSTACK_RELOCATE (yyvs);
+	YYSTACK_RELOCATE (yyls);
+#  undef YYSTACK_RELOCATE
+	if (yyss1 != yyssa)
+	  YYSTACK_FREE (yyss1);
+      }
+# endif
+#endif /* no yyoverflow */
+
+      yyssp = yyss + yysize - 1;
+      yyvsp = yyvs + yysize - 1;
+      yylsp = yyls + yysize - 1;
+
+      YYDPRINTF ((stderr, "Stack size increased to %lu\n",
+		  (unsigned long int) yystacksize));
+
+      if (yyss + yystacksize - 1 <= yyssp)
+	YYABORT;
+    }
+
+  YYDPRINTF ((stderr, "Entering state %d\n", yystate));
+
+  goto yybackup;
+
+/*-----------.
+| yybackup.  |
+`-----------*/
+yybackup:
+
+  /* Do appropriate processing given the current state.  Read a
+     look-ahead token if we need one and don't already have one.  */
+
+  /* First try to decide what to do without reference to look-ahead token.  */
+  yyn = yypact[yystate];
+  if (yyn == YYPACT_NINF)
+    goto yydefault;
+
+  /* Not known => get a look-ahead token if don't already have one.  */
+
+  /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
+  if (yychar == YYEMPTY)
+    {
+      YYDPRINTF ((stderr, "Reading a token: "));
+      yychar = YYLEX;
+    }
+
+  if (yychar <= YYEOF)
+    {
+      yychar = yytoken = YYEOF;
+      YYDPRINTF ((stderr, "Now at end of input.\n"));
+    }
+  else
+    {
+      yytoken = YYTRANSLATE (yychar);
+      YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc);
+    }
+
+  /* If the proper action on seeing token YYTOKEN is to reduce or to
+     detect an error, take that action.  */
+  yyn += yytoken;
+  if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken)
+    goto yydefault;
+  yyn = yytable[yyn];
+  if (yyn <= 0)
+    {
+      if (yyn == 0 || yyn == YYTABLE_NINF)
+	goto yyerrlab;
+      yyn = -yyn;
+      goto yyreduce;
+    }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  /* Count tokens shifted since error; after three, turn off error
+     status.  */
+  if (yyerrstatus)
+    yyerrstatus--;
+
+  /* Shift the look-ahead token.  */
+  YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
+
+  /* Discard the shifted token unless it is eof.  */
+  if (yychar != YYEOF)
+    yychar = YYEMPTY;
+
+  yystate = yyn;
+  *++yyvsp = yylval;
+  *++yylsp = yylloc;
+  goto yynewstate;
+
+
+/*-----------------------------------------------------------.
+| yydefault -- do the default action for the current state.  |
+`-----------------------------------------------------------*/
+yydefault:
+  yyn = yydefact[yystate];
+  if (yyn == 0)
+    goto yyerrlab;
+  goto yyreduce;
+
+
+/*-----------------------------.
+| yyreduce -- Do a reduction.  |
+`-----------------------------*/
+yyreduce:
+  /* yyn is the number of a rule to reduce with.  */
+  yylen = yyr2[yyn];
+
+  /* If YYLEN is nonzero, implement the default value of the action:
+     `$$ = $1'.
+
+     Otherwise, the following line sets YYVAL to garbage.
+     This behavior is undocumented and Bison
+     users should not rely upon it.  Assigning to YYVAL
+     unconditionally makes the parser a bit smaller, and it avoids a
+     GCC warning that YYVAL may be used uninitialized.  */
+  yyval = yyvsp[1-yylen];
+
+  /* Default location.  */
+  YYLLOC_DEFAULT (yyloc, (yylsp - yylen), yylen);
+  YY_REDUCE_PRINT (yyn);
+  switch (yyn)
+    {
+        case 2:
+#line 90 "dtc-parser.y"
+    {
+			the_boot_info = build_boot_info((yyvsp[(3) - (4)].re), (yyvsp[(4) - (4)].node), 0);
+		;}
+    break;
+
+  case 3:
+#line 94 "dtc-parser.y"
+    {
+			the_boot_info = build_boot_info((yyvsp[(1) - (2)].re), (yyvsp[(2) - (2)].node), 0);
+		;}
+    break;
+
+  case 4:
+#line 101 "dtc-parser.y"
+    {
+			(yyval.re) = NULL;
+		;}
+    break;
+
+  case 5:
+#line 105 "dtc-parser.y"
+    {
+			(yyval.re) = chain_reserve_entry((yyvsp[(1) - (2)].re), (yyvsp[(2) - (2)].re));
+		;}
+    break;
+
+  case 6:
+#line 112 "dtc-parser.y"
+    {
+			(yyval.re) = build_reserve_entry((yyvsp[(3) - (5)].addr), (yyvsp[(4) - (5)].addr), (yyvsp[(1) - (5)].labelref));
+		;}
+    break;
+
+  case 7:
+#line 119 "dtc-parser.y"
+    {
+			(yyval.re) = NULL;
+		;}
+    break;
+
+  case 8:
+#line 123 "dtc-parser.y"
+    {
+			(yyval.re) = chain_reserve_entry((yyvsp[(1) - (2)].re), (yyvsp[(2) - (2)].re));
+		;}
+    break;
+
+  case 9:
+#line 130 "dtc-parser.y"
+    {
+			(yyval.re) = (yyvsp[(1) - (1)].re);
+		;}
+    break;
+
+  case 10:
+#line 134 "dtc-parser.y"
+    {
+			(yyval.re) = build_reserve_entry((yyvsp[(3) - (6)].addr), (yyvsp[(5) - (6)].addr) - (yyvsp[(3) - (6)].addr) + 1, (yyvsp[(1) - (6)].labelref));
+		;}
+    break;
+
+  case 11:
+#line 141 "dtc-parser.y"
+    {
+			(yyval.addr) = eval_literal((yyvsp[(1) - (1)].literal), 0, 64);
+		;}
+    break;
+
+  case 12:
+#line 145 "dtc-parser.y"
+    {
+			(yyval.addr) = eval_literal((yyvsp[(1) - (1)].literal), 16, 64);
+		;}
+    break;
+
+  case 13:
+#line 152 "dtc-parser.y"
+    {
+			(yyval.node) = name_node((yyvsp[(2) - (2)].node), "", NULL);
+		;}
+    break;
+
+  case 14:
+#line 159 "dtc-parser.y"
+    {
+			(yyval.node) = build_node((yyvsp[(2) - (5)].proplist), (yyvsp[(3) - (5)].nodelist));
+		;}
+    break;
+
+  case 15:
+#line 166 "dtc-parser.y"
+    {
+			(yyval.proplist) = NULL;
+		;}
+    break;
+
+  case 16:
+#line 170 "dtc-parser.y"
+    {
+			(yyval.proplist) = chain_property((yyvsp[(2) - (2)].prop), (yyvsp[(1) - (2)].proplist));
+		;}
+    break;
+
+  case 17:
+#line 177 "dtc-parser.y"
+    {
+			(yyval.prop) = build_property((yyvsp[(2) - (5)].propnodename), (yyvsp[(4) - (5)].data), (yyvsp[(1) - (5)].labelref));
+		;}
+    break;
+
+  case 18:
+#line 181 "dtc-parser.y"
+    {
+			(yyval.prop) = build_property((yyvsp[(2) - (3)].propnodename), empty_data, (yyvsp[(1) - (3)].labelref));
+		;}
+    break;
+
+  case 19:
+#line 188 "dtc-parser.y"
+    {
+			(yyval.data) = data_merge((yyvsp[(1) - (2)].data), (yyvsp[(2) - (2)].data));
+		;}
+    break;
+
+  case 20:
+#line 192 "dtc-parser.y"
+    {
+			(yyval.data) = data_merge((yyvsp[(1) - (4)].data), (yyvsp[(3) - (4)].data));
+		;}
+    break;
+
+  case 21:
+#line 196 "dtc-parser.y"
+    {
+			(yyval.data) = data_merge((yyvsp[(1) - (4)].data), (yyvsp[(3) - (4)].data));
+		;}
+    break;
+
+  case 22:
+#line 200 "dtc-parser.y"
+    {
+			(yyval.data) = data_add_marker((yyvsp[(1) - (2)].data), REF_PATH, (yyvsp[(2) - (2)].labelref));
+		;}
+    break;
+
+  case 23:
+#line 204 "dtc-parser.y"
+    {
+			struct search_path path = { srcpos_file->dir, NULL, NULL };
+			struct dtc_file *file = dtc_open_file((yyvsp[(4) - (9)].data).val, &path);
+			struct data d = empty_data;
+
+			if ((yyvsp[(6) - (9)].addr) != 0)
+				if (fseek(file->file, (yyvsp[(6) - (9)].addr), SEEK_SET) != 0)
+					yyerrorf("Couldn't seek to offset %llu in \"%s\": %s",
+						 (unsigned long long)(yyvsp[(6) - (9)].addr),
+						 (yyvsp[(4) - (9)].data).val, strerror(errno));
+
+			d = data_copy_file(file->file, (yyvsp[(8) - (9)].addr));
+
+			(yyval.data) = data_merge((yyvsp[(1) - (9)].data), d);
+			dtc_close_file(file);
+		;}
+    break;
+
+  case 24:
+#line 221 "dtc-parser.y"
+    {
+			struct search_path path = { srcpos_file->dir, NULL, NULL };
+			struct dtc_file *file = dtc_open_file((yyvsp[(4) - (5)].data).val, &path);
+			struct data d = empty_data;
+
+			d = data_copy_file(file->file, -1);
+
+			(yyval.data) = data_merge((yyvsp[(1) - (5)].data), d);
+			dtc_close_file(file);
+		;}
+    break;
+
+  case 25:
+#line 232 "dtc-parser.y"
+    {
+			(yyval.data) = data_add_marker((yyvsp[(1) - (2)].data), LABEL, (yyvsp[(2) - (2)].labelref));
+		;}
+    break;
+
+  case 26:
+#line 239 "dtc-parser.y"
+    {
+			(yyval.data) = empty_data;
+		;}
+    break;
+
+  case 27:
+#line 243 "dtc-parser.y"
+    {
+			(yyval.data) = (yyvsp[(1) - (2)].data);
+		;}
+    break;
+
+  case 28:
+#line 247 "dtc-parser.y"
+    {
+			(yyval.data) = data_add_marker((yyvsp[(1) - (2)].data), LABEL, (yyvsp[(2) - (2)].labelref));
+		;}
+    break;
+
+  case 29:
+#line 254 "dtc-parser.y"
+    {
+			(yyval.data) = empty_data;
+		;}
+    break;
+
+  case 30:
+#line 258 "dtc-parser.y"
+    {
+			(yyval.data) = data_append_cell((yyvsp[(1) - (2)].data), (yyvsp[(2) - (2)].cell));
+		;}
+    break;
+
+  case 31:
+#line 262 "dtc-parser.y"
+    {
+			(yyval.data) = data_append_cell(data_add_marker((yyvsp[(1) - (2)].data), REF_PHANDLE,
+							      (yyvsp[(2) - (2)].labelref)), -1);
+		;}
+    break;
+
+  case 32:
+#line 267 "dtc-parser.y"
+    {
+			(yyval.data) = data_add_marker((yyvsp[(1) - (2)].data), LABEL, (yyvsp[(2) - (2)].labelref));
+		;}
+    break;
+
+  case 33:
+#line 274 "dtc-parser.y"
+    {
+			(yyval.cbase) = 16;
+		;}
+    break;
+
+  case 35:
+#line 282 "dtc-parser.y"
+    {
+			(yyval.cell) = eval_literal((yyvsp[(1) - (1)].literal), 0, 32);
+		;}
+    break;
+
+  case 36:
+#line 286 "dtc-parser.y"
+    {
+			(yyval.cell) = eval_literal((yyvsp[(2) - (2)].literal), (yyvsp[(1) - (2)].cbase), 32);
+		;}
+    break;
+
+  case 37:
+#line 293 "dtc-parser.y"
+    {
+			(yyval.data) = empty_data;
+		;}
+    break;
+
+  case 38:
+#line 297 "dtc-parser.y"
+    {
+			(yyval.data) = data_append_byte((yyvsp[(1) - (2)].data), (yyvsp[(2) - (2)].byte));
+		;}
+    break;
+
+  case 39:
+#line 301 "dtc-parser.y"
+    {
+			(yyval.data) = data_add_marker((yyvsp[(1) - (2)].data), LABEL, (yyvsp[(2) - (2)].labelref));
+		;}
+    break;
+
+  case 40:
+#line 308 "dtc-parser.y"
+    {
+			(yyval.nodelist) = NULL;
+		;}
+    break;
+
+  case 41:
+#line 312 "dtc-parser.y"
+    {
+			(yyval.nodelist) = chain_node((yyvsp[(1) - (2)].node), (yyvsp[(2) - (2)].nodelist));
+		;}
+    break;
+
+  case 42:
+#line 316 "dtc-parser.y"
+    {
+			yyerror("syntax error: properties must precede subnodes");
+			YYERROR;
+		;}
+    break;
+
+  case 43:
+#line 324 "dtc-parser.y"
+    {
+			(yyval.node) = name_node((yyvsp[(3) - (3)].node), (yyvsp[(2) - (3)].propnodename), (yyvsp[(1) - (3)].labelref));
+		;}
+    break;
+
+  case 44:
+#line 331 "dtc-parser.y"
+    {
+			(yyval.labelref) = NULL;
+		;}
+    break;
+
+  case 45:
+#line 335 "dtc-parser.y"
+    {
+			(yyval.labelref) = (yyvsp[(1) - (1)].labelref);
+		;}
+    break;
+
+
+/* Line 1267 of yacc.c.  */
+#line 1780 "dtc-parser.tab.c"
+      default: break;
+    }
+  YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
+
+  YYPOPSTACK (yylen);
+  yylen = 0;
+  YY_STACK_PRINT (yyss, yyssp);
+
+  *++yyvsp = yyval;
+  *++yylsp = yyloc;
+
+  /* Now `shift' the result of the reduction.  Determine what state
+     that goes to, based on the state we popped back to and the rule
+     number reduced by.  */
+
+  yyn = yyr1[yyn];
+
+  yystate = yypgoto[yyn - YYNTOKENS] + *yyssp;
+  if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp)
+    yystate = yytable[yystate];
+  else
+    yystate = yydefgoto[yyn - YYNTOKENS];
+
+  goto yynewstate;
+
+
+/*------------------------------------.
+| yyerrlab -- here on detecting error |
+`------------------------------------*/
+yyerrlab:
+  /* If not already recovering from an error, report this error.  */
+  if (!yyerrstatus)
+    {
+      ++yynerrs;
+#if ! YYERROR_VERBOSE
+      yyerror (YY_("syntax error"));
+#else
+      {
+	YYSIZE_T yysize = yysyntax_error (0, yystate, yychar);
+	if (yymsg_alloc < yysize && yymsg_alloc < YYSTACK_ALLOC_MAXIMUM)
+	  {
+	    YYSIZE_T yyalloc = 2 * yysize;
+	    if (! (yysize <= yyalloc && yyalloc <= YYSTACK_ALLOC_MAXIMUM))
+	      yyalloc = YYSTACK_ALLOC_MAXIMUM;
+	    if (yymsg != yymsgbuf)
+	      YYSTACK_FREE (yymsg);
+	    yymsg = (char *) YYSTACK_ALLOC (yyalloc);
+	    if (yymsg)
+	      yymsg_alloc = yyalloc;
+	    else
+	      {
+		yymsg = yymsgbuf;
+		yymsg_alloc = sizeof yymsgbuf;
+	      }
+	  }
+
+	if (0 < yysize && yysize <= yymsg_alloc)
+	  {
+	    (void) yysyntax_error (yymsg, yystate, yychar);
+	    yyerror (yymsg);
+	  }
+	else
+	  {
+	    yyerror (YY_("syntax error"));
+	    if (yysize != 0)
+	      goto yyexhaustedlab;
+	  }
+      }
+#endif
+    }
+
+  yyerror_range[0] = yylloc;
+
+  if (yyerrstatus == 3)
+    {
+      /* If just tried and failed to reuse look-ahead token after an
+	 error, discard it.  */
+
+      if (yychar <= YYEOF)
+	{
+	  /* Return failure if at end of input.  */
+	  if (yychar == YYEOF)
+	    YYABORT;
+	}
+      else
+	{
+	  yydestruct ("Error: discarding",
+		      yytoken, &yylval, &yylloc);
+	  yychar = YYEMPTY;
+	}
+    }
+
+  /* Else will try to reuse look-ahead token after shifting the error
+     token.  */
+  goto yyerrlab1;
+
+
+/*---------------------------------------------------.
+| yyerrorlab -- error raised explicitly by YYERROR.  |
+`---------------------------------------------------*/
+yyerrorlab:
+
+  /* Pacify compilers like GCC when the user code never invokes
+     YYERROR and the label yyerrorlab therefore never appears in user
+     code.  */
+  if (/*CONSTCOND*/ 0)
+     goto yyerrorlab;
+
+  yyerror_range[0] = yylsp[1-yylen];
+  /* Do not reclaim the symbols of the rule which action triggered
+     this YYERROR.  */
+  YYPOPSTACK (yylen);
+  yylen = 0;
+  YY_STACK_PRINT (yyss, yyssp);
+  yystate = *yyssp;
+  goto yyerrlab1;
+
+
+/*-------------------------------------------------------------.
+| yyerrlab1 -- common code for both syntax error and YYERROR.  |
+`-------------------------------------------------------------*/
+yyerrlab1:
+  yyerrstatus = 3;	/* Each real token shifted decrements this.  */
+
+  for (;;)
+    {
+      yyn = yypact[yystate];
+      if (yyn != YYPACT_NINF)
+	{
+	  yyn += YYTERROR;
+	  if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR)
+	    {
+	      yyn = yytable[yyn];
+	      if (0 < yyn)
+		break;
+	    }
+	}
+
+      /* Pop the current state because it cannot handle the error token.  */
+      if (yyssp == yyss)
+	YYABORT;
+
+      yyerror_range[0] = *yylsp;
+      yydestruct ("Error: popping",
+		  yystos[yystate], yyvsp, yylsp);
+      YYPOPSTACK (1);
+      yystate = *yyssp;
+      YY_STACK_PRINT (yyss, yyssp);
+    }
+
+  if (yyn == YYFINAL)
+    YYACCEPT;
+
+  *++yyvsp = yylval;
+
+  yyerror_range[1] = yylloc;
+  /* Using YYLLOC is tempting, but would change the location of
+     the look-ahead.  YYLOC is available though.  */
+  YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
+  *++yylsp = yyloc;
+
+  /* Shift the error token.  */
+  YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp);
+
+  yystate = yyn;
+  goto yynewstate;
+
+
+/*-------------------------------------.
+| yyacceptlab -- YYACCEPT comes here.  |
+`-------------------------------------*/
+yyacceptlab:
+  yyresult = 0;
+  goto yyreturn;
+
+/*-----------------------------------.
+| yyabortlab -- YYABORT comes here.  |
+`-----------------------------------*/
+yyabortlab:
+  yyresult = 1;
+  goto yyreturn;
+
+#ifndef yyoverflow
+/*-------------------------------------------------.
+| yyexhaustedlab -- memory exhaustion comes here.  |
+`-------------------------------------------------*/
+yyexhaustedlab:
+  yyerror (YY_("memory exhausted"));
+  yyresult = 2;
+  /* Fall through.  */
+#endif
+
+yyreturn:
+  if (yychar != YYEOF && yychar != YYEMPTY)
+     yydestruct ("Cleanup: discarding lookahead",
+		 yytoken, &yylval, &yylloc);
+  /* Do not reclaim the symbols of the rule which action triggered
+     this YYABORT or YYACCEPT.  */
+  YYPOPSTACK (yylen);
+  YY_STACK_PRINT (yyss, yyssp);
+  while (yyssp != yyss)
+    {
+      yydestruct ("Cleanup: popping",
+		  yystos[*yyssp], yyvsp, yylsp);
+      YYPOPSTACK (1);
+    }
+#ifndef yyoverflow
+  if (yyss != yyssa)
+    YYSTACK_FREE (yyss);
+#endif
+#if YYERROR_VERBOSE
+  if (yymsg != yymsgbuf)
+    YYSTACK_FREE (yymsg);
+#endif
+  /* Make sure YYID is used.  */
+  return YYID (yyresult);
+}
+
+
+#line 340 "dtc-parser.y"
+
+
+void yyerrorf(char const *s, ...)
+{
+	const char *fname = srcpos_file ? srcpos_file->name : "<no-file>";
+	va_list va;
+	va_start(va, s);
+
+	if (strcmp(fname, "-") == 0)
+		fname = "stdin";
+
+	fprintf(stderr, "%s:%d ", fname, yylloc.first_line);
+	vfprintf(stderr, s, va);
+	fprintf(stderr, "\n");
+
+	treesource_error = 1;
+	va_end(va);
+}
+
+void yyerror (char const *s)
+{
+	yyerrorf("%s", s);
+}
+
+static unsigned long long eval_literal(const char *s, int base, int bits)
+{
+	unsigned long long val;
+	char *e;
+
+	errno = 0;
+	val = strtoull(s, &e, base);
+	if (*e)
+		yyerror("bad characters in literal");
+	else if ((errno == ERANGE)
+		 || ((bits < 64) && (val >= (1ULL << bits))))
+		yyerror("literal out of range");
+	else if (errno != 0)
+		yyerror("bad literal");
+	return val;
+}
+
diff --git a/scripts/dtc/dtc-parser.tab.h_shipped b/scripts/dtc/dtc-parser.tab.h_shipped
new file mode 100644
index 00000000000..ba99100d55c
--- /dev/null
+++ b/scripts/dtc/dtc-parser.tab.h_shipped
@@ -0,0 +1,113 @@
+/* A Bison parser, made by GNU Bison 2.3.  */
+
+/* Skeleton interface for Bison's Yacc-like parsers in C
+
+   Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
+
+/* As a special exception, you may create a larger work that contains
+   part or all of the Bison parser skeleton and distribute that work
+   under terms of your choice, so long as that work isn't itself a
+   parser generator using the skeleton or a modified version thereof
+   as a parser skeleton.  Alternatively, if you modify or redistribute
+   the parser skeleton itself, you may (at your option) remove this
+   special exception, which will cause the skeleton and the resulting
+   Bison output files to be licensed under the GNU General Public
+   License without this special exception.
+
+   This special exception was added by the Free Software Foundation in
+   version 2.2 of Bison.  */
+
+/* Tokens.  */
+#ifndef YYTOKENTYPE
+# define YYTOKENTYPE
+   /* Put the tokens into the symbol table, so that GDB and other debuggers
+      know about them.  */
+   enum yytokentype {
+     DT_V1 = 258,
+     DT_MEMRESERVE = 259,
+     DT_PROPNODENAME = 260,
+     DT_LITERAL = 261,
+     DT_LEGACYLITERAL = 262,
+     DT_BASE = 263,
+     DT_BYTE = 264,
+     DT_STRING = 265,
+     DT_LABEL = 266,
+     DT_REF = 267,
+     DT_INCBIN = 268
+   };
+#endif
+/* Tokens.  */
+#define DT_V1 258
+#define DT_MEMRESERVE 259
+#define DT_PROPNODENAME 260
+#define DT_LITERAL 261
+#define DT_LEGACYLITERAL 262
+#define DT_BASE 263
+#define DT_BYTE 264
+#define DT_STRING 265
+#define DT_LABEL 266
+#define DT_REF 267
+#define DT_INCBIN 268
+
+
+
+
+#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+typedef union YYSTYPE
+#line 37 "dtc-parser.y"
+{
+	char *propnodename;
+	char *literal;
+	char *labelref;
+	unsigned int cbase;
+	uint8_t byte;
+	struct data data;
+
+	uint64_t addr;
+	cell_t cell;
+	struct property *prop;
+	struct property *proplist;
+	struct node *node;
+	struct node *nodelist;
+	struct reserve_info *re;
+}
+/* Line 1489 of yacc.c.  */
+#line 92 "dtc-parser.tab.h"
+	YYSTYPE;
+# define yystype YYSTYPE /* obsolescent; will be withdrawn */
+# define YYSTYPE_IS_DECLARED 1
+# define YYSTYPE_IS_TRIVIAL 1
+#endif
+
+extern YYSTYPE yylval;
+
+#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
+typedef struct YYLTYPE
+{
+  int first_line;
+  int first_column;
+  int last_line;
+  int last_column;
+} YYLTYPE;
+# define yyltype YYLTYPE /* obsolescent; will be withdrawn */
+# define YYLTYPE_IS_DECLARED 1
+# define YYLTYPE_IS_TRIVIAL 1
+#endif
+
+extern YYLTYPE yylloc;
diff --git a/scripts/dtc/dtc-parser.y b/scripts/dtc/dtc-parser.y
new file mode 100644
index 00000000000..b2ab562420e
--- /dev/null
+++ b/scripts/dtc/dtc-parser.y
@@ -0,0 +1,379 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+%locations
+
+%{
+#include <stdio.h>
+
+#include "dtc.h"
+#include "srcpos.h"
+
+extern int yylex(void);
+
+extern struct boot_info *the_boot_info;
+extern int treesource_error;
+
+static unsigned long long eval_literal(const char *s, int base, int bits);
+%}
+
+%union {
+	char *propnodename;
+	char *literal;
+	char *labelref;
+	unsigned int cbase;
+	uint8_t byte;
+	struct data data;
+
+	uint64_t addr;
+	cell_t cell;
+	struct property *prop;
+	struct property *proplist;
+	struct node *node;
+	struct node *nodelist;
+	struct reserve_info *re;
+}
+
+%token DT_V1
+%token DT_MEMRESERVE
+%token <propnodename> DT_PROPNODENAME
+%token <literal> DT_LITERAL
+%token <literal> DT_LEGACYLITERAL
+%token <cbase> DT_BASE
+%token <byte> DT_BYTE
+%token <data> DT_STRING
+%token <labelref> DT_LABEL
+%token <labelref> DT_REF
+%token DT_INCBIN
+
+%type <data> propdata
+%type <data> propdataprefix
+%type <re> memreserve
+%type <re> memreserves
+%type <re> v0_memreserve
+%type <re> v0_memreserves
+%type <addr> addr
+%type <data> celllist
+%type <cbase> cellbase
+%type <cell> cellval
+%type <data> bytestring
+%type <prop> propdef
+%type <proplist> proplist
+
+%type <node> devicetree
+%type <node> nodedef
+%type <node> subnode
+%type <nodelist> subnodes
+%type <labelref> label
+
+%%
+
+sourcefile:
+	  DT_V1 ';' memreserves devicetree
+		{
+			the_boot_info = build_boot_info($3, $4, 0);
+		}
+	| v0_memreserves devicetree
+		{
+			the_boot_info = build_boot_info($1, $2, 0);
+		}
+	;
+
+memreserves:
+	  /* empty */
+		{
+			$$ = NULL;
+		}
+	| memreserve memreserves
+		{
+			$$ = chain_reserve_entry($1, $2);
+		}
+	;
+
+memreserve:
+	  label DT_MEMRESERVE addr addr ';'
+		{
+			$$ = build_reserve_entry($3, $4, $1);
+		}
+	;
+
+v0_memreserves:
+	  /* empty */
+		{
+			$$ = NULL;
+		}
+	| v0_memreserve v0_memreserves
+		{
+			$$ = chain_reserve_entry($1, $2);
+		};
+	;
+
+v0_memreserve:
+	  memreserve
+		{
+			$$ = $1;
+		}
+	| label DT_MEMRESERVE addr '-' addr ';'
+		{
+			$$ = build_reserve_entry($3, $5 - $3 + 1, $1);
+		}
+	;
+
+addr:
+	  DT_LITERAL
+		{
+			$$ = eval_literal($1, 0, 64);
+		}
+	| DT_LEGACYLITERAL
+		{
+			$$ = eval_literal($1, 16, 64);
+		}
+	  ;
+
+devicetree:
+	  '/' nodedef
+		{
+			$$ = name_node($2, "", NULL);
+		}
+	;
+
+nodedef:
+	  '{' proplist subnodes '}' ';'
+		{
+			$$ = build_node($2, $3);
+		}
+	;
+
+proplist:
+	  /* empty */
+		{
+			$$ = NULL;
+		}
+	| proplist propdef
+		{
+			$$ = chain_property($2, $1);
+		}
+	;
+
+propdef:
+	  label DT_PROPNODENAME '=' propdata ';'
+		{
+			$$ = build_property($2, $4, $1);
+		}
+	| label DT_PROPNODENAME ';'
+		{
+			$$ = build_property($2, empty_data, $1);
+		}
+	;
+
+propdata:
+	  propdataprefix DT_STRING
+		{
+			$$ = data_merge($1, $2);
+		}
+	| propdataprefix '<' celllist '>'
+		{
+			$$ = data_merge($1, $3);
+		}
+	| propdataprefix '[' bytestring ']'
+		{
+			$$ = data_merge($1, $3);
+		}
+	| propdataprefix DT_REF
+		{
+			$$ = data_add_marker($1, REF_PATH, $2);
+		}
+	| propdataprefix DT_INCBIN '(' DT_STRING ',' addr ',' addr ')'
+		{
+			struct search_path path = { srcpos_file->dir, NULL, NULL };
+			struct dtc_file *file = dtc_open_file($4.val, &path);
+			struct data d = empty_data;
+
+			if ($6 != 0)
+				if (fseek(file->file, $6, SEEK_SET) != 0)
+					yyerrorf("Couldn't seek to offset %llu in \"%s\": %s",
+						 (unsigned long long)$6,
+						 $4.val, strerror(errno));
+
+			d = data_copy_file(file->file, $8);
+
+			$$ = data_merge($1, d);
+			dtc_close_file(file);
+		}
+	| propdataprefix DT_INCBIN '(' DT_STRING ')'
+		{
+			struct search_path path = { srcpos_file->dir, NULL, NULL };
+			struct dtc_file *file = dtc_open_file($4.val, &path);
+			struct data d = empty_data;
+
+			d = data_copy_file(file->file, -1);
+
+			$$ = data_merge($1, d);
+			dtc_close_file(file);
+		}
+	| propdata DT_LABEL
+		{
+			$$ = data_add_marker($1, LABEL, $2);
+		}
+	;
+
+propdataprefix:
+	  /* empty */
+		{
+			$$ = empty_data;
+		}
+	| propdata ','
+		{
+			$$ = $1;
+		}
+	| propdataprefix DT_LABEL
+		{
+			$$ = data_add_marker($1, LABEL, $2);
+		}
+	;
+
+celllist:
+	  /* empty */
+		{
+			$$ = empty_data;
+		}
+	| celllist cellval
+		{
+			$$ = data_append_cell($1, $2);
+		}
+	| celllist DT_REF
+		{
+			$$ = data_append_cell(data_add_marker($1, REF_PHANDLE,
+							      $2), -1);
+		}
+	| celllist DT_LABEL
+		{
+			$$ = data_add_marker($1, LABEL, $2);
+		}
+	;
+
+cellbase:
+	  /* empty */
+		{
+			$$ = 16;
+		}
+	| DT_BASE
+	;
+
+cellval:
+	  DT_LITERAL
+		{
+			$$ = eval_literal($1, 0, 32);
+		}
+	| cellbase DT_LEGACYLITERAL
+		{
+			$$ = eval_literal($2, $1, 32);
+		}
+	;
+
+bytestring:
+	  /* empty */
+		{
+			$$ = empty_data;
+		}
+	| bytestring DT_BYTE
+		{
+			$$ = data_append_byte($1, $2);
+		}
+	| bytestring DT_LABEL
+		{
+			$$ = data_add_marker($1, LABEL, $2);
+		}
+	;
+
+subnodes:
+	  /* empty */
+		{
+			$$ = NULL;
+		}
+	|  subnode subnodes
+		{
+			$$ = chain_node($1, $2);
+		}
+	| subnode propdef
+		{
+			yyerror("syntax error: properties must precede subnodes");
+			YYERROR;
+		}
+	;
+
+subnode:
+	  label DT_PROPNODENAME nodedef
+		{
+			$$ = name_node($3, $2, $1);
+		}
+	;
+
+label:
+	  /* empty */
+		{
+			$$ = NULL;
+		}
+	| DT_LABEL
+		{
+			$$ = $1;
+		}
+	;
+
+%%
+
+void yyerrorf(char const *s, ...)
+{
+	const char *fname = srcpos_file ? srcpos_file->name : "<no-file>";
+	va_list va;
+	va_start(va, s);
+
+	if (strcmp(fname, "-") == 0)
+		fname = "stdin";
+
+	fprintf(stderr, "%s:%d ", fname, yylloc.first_line);
+	vfprintf(stderr, s, va);
+	fprintf(stderr, "\n");
+
+	treesource_error = 1;
+	va_end(va);
+}
+
+void yyerror (char const *s)
+{
+	yyerrorf("%s", s);
+}
+
+static unsigned long long eval_literal(const char *s, int base, int bits)
+{
+	unsigned long long val;
+	char *e;
+
+	errno = 0;
+	val = strtoull(s, &e, base);
+	if (*e)
+		yyerror("bad characters in literal");
+	else if ((errno == ERANGE)
+		 || ((bits < 64) && (val >= (1ULL << bits))))
+		yyerror("literal out of range");
+	else if (errno != 0)
+		yyerror("bad literal");
+	return val;
+}
diff --git a/scripts/dtc/dtc.c b/scripts/dtc/dtc.c
new file mode 100644
index 00000000000..d8fd43b4ac1
--- /dev/null
+++ b/scripts/dtc/dtc.c
@@ -0,0 +1,226 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+#include "dtc.h"
+#include "srcpos.h"
+
+#include "version_gen.h"
+
+/*
+ * Command line options
+ */
+int quiet;		/* Level of quietness */
+int reservenum;		/* Number of memory reservation slots */
+int minsize;		/* Minimum blob size */
+int padsize;		/* Additional padding to blob */
+
+char *join_path(const char *path, const char *name)
+{
+	int lenp = strlen(path);
+	int lenn = strlen(name);
+	int len;
+	int needslash = 1;
+	char *str;
+
+	len = lenp + lenn + 2;
+	if ((lenp > 0) && (path[lenp-1] == '/')) {
+		needslash = 0;
+		len--;
+	}
+
+	str = xmalloc(len);
+	memcpy(str, path, lenp);
+	if (needslash) {
+		str[lenp] = '/';
+		lenp++;
+	}
+	memcpy(str+lenp, name, lenn+1);
+	return str;
+}
+
+static void fill_fullpaths(struct node *tree, const char *prefix)
+{
+	struct node *child;
+	const char *unit;
+
+	tree->fullpath = join_path(prefix, tree->name);
+
+	unit = strchr(tree->name, '@');
+	if (unit)
+		tree->basenamelen = unit - tree->name;
+	else
+		tree->basenamelen = strlen(tree->name);
+
+	for_each_child(tree, child)
+		fill_fullpaths(child, tree->fullpath);
+}
+
+static void  __attribute__ ((noreturn)) usage(void)
+{
+	fprintf(stderr, "Usage:\n");
+	fprintf(stderr, "\tdtc [options] <input file>\n");
+	fprintf(stderr, "\nOptions:\n");
+	fprintf(stderr, "\t-h\n");
+	fprintf(stderr, "\t\tThis help text\n");
+	fprintf(stderr, "\t-q\n");
+	fprintf(stderr, "\t\tQuiet: -q suppress warnings, -qq errors, -qqq all\n");
+	fprintf(stderr, "\t-I <input format>\n");
+	fprintf(stderr, "\t\tInput formats are:\n");
+	fprintf(stderr, "\t\t\tdts - device tree source text\n");
+	fprintf(stderr, "\t\t\tdtb - device tree blob\n");
+	fprintf(stderr, "\t\t\tfs - /proc/device-tree style directory\n");
+	fprintf(stderr, "\t-o <output file>\n");
+	fprintf(stderr, "\t-O <output format>\n");
+	fprintf(stderr, "\t\tOutput formats are:\n");
+	fprintf(stderr, "\t\t\tdts - device tree source text\n");
+	fprintf(stderr, "\t\t\tdtb - device tree blob\n");
+	fprintf(stderr, "\t\t\tasm - assembler source\n");
+	fprintf(stderr, "\t-V <output version>\n");
+	fprintf(stderr, "\t\tBlob version to produce, defaults to %d (relevant for dtb\n\t\tand asm output only)\n", DEFAULT_FDT_VERSION);
+	fprintf(stderr, "\t-R <number>\n");
+	fprintf(stderr, "\t\tMake space for <number> reserve map entries (relevant for \n\t\tdtb and asm output only)\n");
+	fprintf(stderr, "\t-S <bytes>\n");
+	fprintf(stderr, "\t\tMake the blob at least <bytes> long (extra space)\n");
+	fprintf(stderr, "\t-p <bytes>\n");
+	fprintf(stderr, "\t\tAdd padding to the blob of <bytes> long (extra space)\n");
+	fprintf(stderr, "\t-b <number>\n");
+	fprintf(stderr, "\t\tSet the physical boot cpu\n");
+	fprintf(stderr, "\t-f\n");
+	fprintf(stderr, "\t\tForce - try to produce output even if the input tree has errors\n");
+	fprintf(stderr, "\t-v\n");
+	fprintf(stderr, "\t\tPrint DTC version and exit\n");
+	exit(3);
+}
+
+int main(int argc, char *argv[])
+{
+	struct boot_info *bi;
+	const char *inform = "dts";
+	const char *outform = "dts";
+	const char *outname = "-";
+	int force = 0, check = 0;
+	const char *arg;
+	int opt;
+	FILE *outf = NULL;
+	int outversion = DEFAULT_FDT_VERSION;
+	long long cmdline_boot_cpuid = -1;
+
+	quiet      = 0;
+	reservenum = 0;
+	minsize    = 0;
+	padsize    = 0;
+
+	while ((opt = getopt(argc, argv, "hI:O:o:V:R:S:p:fcqb:v")) != EOF) {
+		switch (opt) {
+		case 'I':
+			inform = optarg;
+			break;
+		case 'O':
+			outform = optarg;
+			break;
+		case 'o':
+			outname = optarg;
+			break;
+		case 'V':
+			outversion = strtol(optarg, NULL, 0);
+			break;
+		case 'R':
+			reservenum = strtol(optarg, NULL, 0);
+			break;
+		case 'S':
+			minsize = strtol(optarg, NULL, 0);
+			break;
+		case 'p':
+			padsize = strtol(optarg, NULL, 0);
+			break;
+		case 'f':
+			force = 1;
+			break;
+		case 'c':
+			check = 1;
+			break;
+		case 'q':
+			quiet++;
+			break;
+		case 'b':
+			cmdline_boot_cpuid = strtoll(optarg, NULL, 0);
+			break;
+		case 'v':
+			printf("Version: %s\n", DTC_VERSION);
+			exit(0);
+		case 'h':
+		default:
+			usage();
+		}
+	}
+
+	if (argc > (optind+1))
+		usage();
+	else if (argc < (optind+1))
+		arg = "-";
+	else
+		arg = argv[optind];
+
+	/* minsize and padsize are mutually exclusive */
+	if (minsize && padsize)
+		die("Can't set both -p and -S\n");
+
+	fprintf(stderr, "DTC: %s->%s  on file \"%s\"\n",
+		inform, outform, arg);
+
+	if (streq(inform, "dts"))
+		bi = dt_from_source(arg);
+	else if (streq(inform, "fs"))
+		bi = dt_from_fs(arg);
+	else if(streq(inform, "dtb"))
+		bi = dt_from_blob(arg);
+	else
+		die("Unknown input format \"%s\"\n", inform);
+
+	if (cmdline_boot_cpuid != -1)
+		bi->boot_cpuid_phys = cmdline_boot_cpuid;
+
+	fill_fullpaths(bi->dt, "");
+	process_checks(force, bi);
+
+
+	if (streq(outname, "-")) {
+		outf = stdout;
+	} else {
+		outf = fopen(outname, "w");
+		if (! outf)
+			die("Couldn't open output file %s: %s\n",
+			    outname, strerror(errno));
+	}
+
+	if (streq(outform, "dts")) {
+		dt_to_source(outf, bi);
+	} else if (streq(outform, "dtb")) {
+		dt_to_blob(outf, bi, outversion);
+	} else if (streq(outform, "asm")) {
+		dt_to_asm(outf, bi, outversion);
+	} else if (streq(outform, "null")) {
+		/* do nothing */
+	} else {
+		die("Unknown output format \"%s\"\n", outform);
+	}
+
+	exit(0);
+}
diff --git a/scripts/dtc/dtc.h b/scripts/dtc/dtc.h
new file mode 100644
index 00000000000..08d54c87008
--- /dev/null
+++ b/scripts/dtc/dtc.h
@@ -0,0 +1,246 @@
+#ifndef _DTC_H
+#define _DTC_H
+
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <ctype.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <libfdt_env.h>
+#include <fdt.h>
+
+#define DEFAULT_FDT_VERSION	17
+/*
+ * Command line options
+ */
+extern int quiet;		/* Level of quietness */
+extern int reservenum;		/* Number of memory reservation slots */
+extern int minsize;		/* Minimum blob size */
+extern int padsize;		/* Additional padding to blob */
+
+static inline void __attribute__((noreturn)) die(char * str, ...)
+{
+	va_list ap;
+
+	va_start(ap, str);
+	fprintf(stderr, "FATAL ERROR: ");
+	vfprintf(stderr, str, ap);
+	exit(1);
+}
+
+static inline void *xmalloc(size_t len)
+{
+	void *new = malloc(len);
+
+	if (! new)
+		die("malloc() failed\n");
+
+	return new;
+}
+
+static inline void *xrealloc(void *p, size_t len)
+{
+	void *new = realloc(p, len);
+
+	if (! new)
+		die("realloc() failed (len=%d)\n", len);
+
+	return new;
+}
+
+typedef uint32_t cell_t;
+
+
+#define streq(a, b)	(strcmp((a), (b)) == 0)
+#define strneq(a, b, n)	(strncmp((a), (b), (n)) == 0)
+
+#define ALIGN(x, a)	(((x) + (a) - 1) & ~((a) - 1))
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+/* Data blobs */
+enum markertype {
+	REF_PHANDLE,
+	REF_PATH,
+	LABEL,
+};
+
+struct  marker {
+	enum markertype type;
+	int offset;
+	char *ref;
+	struct marker *next;
+};
+
+struct data {
+	int len;
+	char *val;
+	struct marker *markers;
+};
+
+
+#define empty_data ((struct data){ /* all .members = 0 or NULL */ })
+
+#define for_each_marker(m) \
+	for (; (m); (m) = (m)->next)
+#define for_each_marker_of_type(m, t) \
+	for_each_marker(m) \
+		if ((m)->type == (t))
+
+void data_free(struct data d);
+
+struct data data_grow_for(struct data d, int xlen);
+
+struct data data_copy_mem(const char *mem, int len);
+struct data data_copy_escape_string(const char *s, int len);
+struct data data_copy_file(FILE *f, size_t len);
+
+struct data data_append_data(struct data d, const void *p, int len);
+struct data data_insert_at_marker(struct data d, struct marker *m,
+				  const void *p, int len);
+struct data data_merge(struct data d1, struct data d2);
+struct data data_append_cell(struct data d, cell_t word);
+struct data data_append_re(struct data d, const struct fdt_reserve_entry *re);
+struct data data_append_addr(struct data d, uint64_t addr);
+struct data data_append_byte(struct data d, uint8_t byte);
+struct data data_append_zeroes(struct data d, int len);
+struct data data_append_align(struct data d, int align);
+
+struct data data_add_marker(struct data d, enum markertype type, char *ref);
+
+int data_is_one_string(struct data d);
+
+/* DT constraints */
+
+#define MAX_PROPNAME_LEN	31
+#define MAX_NODENAME_LEN	31
+
+/* Live trees */
+struct property {
+	char *name;
+	struct data val;
+
+	struct property *next;
+
+	char *label;
+};
+
+struct node {
+	char *name;
+	struct property *proplist;
+	struct node *children;
+
+	struct node *parent;
+	struct node *next_sibling;
+
+	char *fullpath;
+	int basenamelen;
+
+	cell_t phandle;
+	int addr_cells, size_cells;
+
+	char *label;
+};
+
+#define for_each_property(n, p) \
+	for ((p) = (n)->proplist; (p); (p) = (p)->next)
+
+#define for_each_child(n, c)	\
+	for ((c) = (n)->children; (c); (c) = (c)->next_sibling)
+
+struct property *build_property(char *name, struct data val, char *label);
+struct property *chain_property(struct property *first, struct property *list);
+struct property *reverse_properties(struct property *first);
+
+struct node *build_node(struct property *proplist, struct node *children);
+struct node *name_node(struct node *node, char *name, char *label);
+struct node *chain_node(struct node *first, struct node *list);
+
+void add_property(struct node *node, struct property *prop);
+void add_child(struct node *parent, struct node *child);
+
+const char *get_unitname(struct node *node);
+struct property *get_property(struct node *node, const char *propname);
+cell_t propval_cell(struct property *prop);
+struct node *get_subnode(struct node *node, const char *nodename);
+struct node *get_node_by_path(struct node *tree, const char *path);
+struct node *get_node_by_label(struct node *tree, const char *label);
+struct node *get_node_by_phandle(struct node *tree, cell_t phandle);
+struct node *get_node_by_ref(struct node *tree, const char *ref);
+cell_t get_node_phandle(struct node *root, struct node *node);
+
+/* Boot info (tree plus memreserve information */
+
+struct reserve_info {
+	struct fdt_reserve_entry re;
+
+	struct reserve_info *next;
+
+	char *label;
+};
+
+struct reserve_info *build_reserve_entry(uint64_t start, uint64_t len, char *label);
+struct reserve_info *chain_reserve_entry(struct reserve_info *first,
+					 struct reserve_info *list);
+struct reserve_info *add_reserve_entry(struct reserve_info *list,
+				       struct reserve_info *new);
+
+
+struct boot_info {
+	struct reserve_info *reservelist;
+	struct node *dt;		/* the device tree */
+	uint32_t boot_cpuid_phys;
+};
+
+struct boot_info *build_boot_info(struct reserve_info *reservelist,
+				  struct node *tree, uint32_t boot_cpuid_phys);
+
+/* Checks */
+
+void process_checks(int force, struct boot_info *bi);
+
+/* Flattened trees */
+
+void dt_to_blob(FILE *f, struct boot_info *bi, int version);
+void dt_to_asm(FILE *f, struct boot_info *bi, int version);
+
+struct boot_info *dt_from_blob(const char *fname);
+
+/* Tree source */
+
+void dt_to_source(FILE *f, struct boot_info *bi);
+struct boot_info *dt_from_source(const char *f);
+
+/* FS trees */
+
+struct boot_info *dt_from_fs(const char *dirname);
+
+/* misc */
+
+char *join_path(const char *path, const char *name);
+
+#endif /* _DTC_H */
diff --git a/scripts/dtc/flattree.c b/scripts/dtc/flattree.c
new file mode 100644
index 00000000000..76acd28c068
--- /dev/null
+++ b/scripts/dtc/flattree.c
@@ -0,0 +1,906 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+#include "dtc.h"
+#include "srcpos.h"
+
+#define FTF_FULLPATH	0x1
+#define FTF_VARALIGN	0x2
+#define FTF_NAMEPROPS	0x4
+#define FTF_BOOTCPUID	0x8
+#define FTF_STRTABSIZE	0x10
+#define FTF_STRUCTSIZE	0x20
+#define FTF_NOPS	0x40
+
+static struct version_info {
+	int version;
+	int last_comp_version;
+	int hdr_size;
+	int flags;
+} version_table[] = {
+	{1, 1, FDT_V1_SIZE,
+	 FTF_FULLPATH|FTF_VARALIGN|FTF_NAMEPROPS},
+	{2, 1, FDT_V2_SIZE,
+	 FTF_FULLPATH|FTF_VARALIGN|FTF_NAMEPROPS|FTF_BOOTCPUID},
+	{3, 1, FDT_V3_SIZE,
+	 FTF_FULLPATH|FTF_VARALIGN|FTF_NAMEPROPS|FTF_BOOTCPUID|FTF_STRTABSIZE},
+	{16, 16, FDT_V3_SIZE,
+	 FTF_BOOTCPUID|FTF_STRTABSIZE|FTF_NOPS},
+	{17, 16, FDT_V17_SIZE,
+	 FTF_BOOTCPUID|FTF_STRTABSIZE|FTF_STRUCTSIZE|FTF_NOPS},
+};
+
+struct emitter {
+	void (*cell)(void *, cell_t);
+	void (*string)(void *, char *, int);
+	void (*align)(void *, int);
+	void (*data)(void *, struct data);
+	void (*beginnode)(void *, const char *);
+	void (*endnode)(void *, const char *);
+	void (*property)(void *, const char *);
+};
+
+static void bin_emit_cell(void *e, cell_t val)
+{
+	struct data *dtbuf = e;
+
+	*dtbuf = data_append_cell(*dtbuf, val);
+}
+
+static void bin_emit_string(void *e, char *str, int len)
+{
+	struct data *dtbuf = e;
+
+	if (len == 0)
+		len = strlen(str);
+
+	*dtbuf = data_append_data(*dtbuf, str, len);
+	*dtbuf = data_append_byte(*dtbuf, '\0');
+}
+
+static void bin_emit_align(void *e, int a)
+{
+	struct data *dtbuf = e;
+
+	*dtbuf = data_append_align(*dtbuf, a);
+}
+
+static void bin_emit_data(void *e, struct data d)
+{
+	struct data *dtbuf = e;
+
+	*dtbuf = data_append_data(*dtbuf, d.val, d.len);
+}
+
+static void bin_emit_beginnode(void *e, const char *label)
+{
+	bin_emit_cell(e, FDT_BEGIN_NODE);
+}
+
+static void bin_emit_endnode(void *e, const char *label)
+{
+	bin_emit_cell(e, FDT_END_NODE);
+}
+
+static void bin_emit_property(void *e, const char *label)
+{
+	bin_emit_cell(e, FDT_PROP);
+}
+
+static struct emitter bin_emitter = {
+	.cell = bin_emit_cell,
+	.string = bin_emit_string,
+	.align = bin_emit_align,
+	.data = bin_emit_data,
+	.beginnode = bin_emit_beginnode,
+	.endnode = bin_emit_endnode,
+	.property = bin_emit_property,
+};
+
+static void emit_label(FILE *f, const char *prefix, const char *label)
+{
+	fprintf(f, "\t.globl\t%s_%s\n", prefix, label);
+	fprintf(f, "%s_%s:\n", prefix, label);
+	fprintf(f, "_%s_%s:\n", prefix, label);
+}
+
+static void emit_offset_label(FILE *f, const char *label, int offset)
+{
+	fprintf(f, "\t.globl\t%s\n", label);
+	fprintf(f, "%s\t= . + %d\n", label, offset);
+}
+
+static void asm_emit_cell(void *e, cell_t val)
+{
+	FILE *f = e;
+
+	fprintf(f, "\t.long\t0x%x\n", val);
+}
+
+static void asm_emit_string(void *e, char *str, int len)
+{
+	FILE *f = e;
+	char c = 0;
+
+	if (len != 0) {
+		/* XXX: ewww */
+		c = str[len];
+		str[len] = '\0';
+	}
+
+	fprintf(f, "\t.string\t\"%s\"\n", str);
+
+	if (len != 0) {
+		str[len] = c;
+	}
+}
+
+static void asm_emit_align(void *e, int a)
+{
+	FILE *f = e;
+
+	fprintf(f, "\t.balign\t%d\n", a);
+}
+
+static void asm_emit_data(void *e, struct data d)
+{
+	FILE *f = e;
+	int off = 0;
+	struct marker *m = d.markers;
+
+	for_each_marker_of_type(m, LABEL)
+		emit_offset_label(f, m->ref, m->offset);
+
+	while ((d.len - off) >= sizeof(uint32_t)) {
+		fprintf(f, "\t.long\t0x%x\n",
+			fdt32_to_cpu(*((uint32_t *)(d.val+off))));
+		off += sizeof(uint32_t);
+	}
+
+	while ((d.len - off) >= 1) {
+		fprintf(f, "\t.byte\t0x%hhx\n", d.val[off]);
+		off += 1;
+	}
+
+	assert(off == d.len);
+}
+
+static void asm_emit_beginnode(void *e, const char *label)
+{
+	FILE *f = e;
+
+	if (label) {
+		fprintf(f, "\t.globl\t%s\n", label);
+		fprintf(f, "%s:\n", label);
+	}
+	fprintf(f, "\t.long\tFDT_BEGIN_NODE\n");
+}
+
+static void asm_emit_endnode(void *e, const char *label)
+{
+	FILE *f = e;
+
+	fprintf(f, "\t.long\tFDT_END_NODE\n");
+	if (label) {
+		fprintf(f, "\t.globl\t%s_end\n", label);
+		fprintf(f, "%s_end:\n", label);
+	}
+}
+
+static void asm_emit_property(void *e, const char *label)
+{
+	FILE *f = e;
+
+	if (label) {
+		fprintf(f, "\t.globl\t%s\n", label);
+		fprintf(f, "%s:\n", label);
+	}
+	fprintf(f, "\t.long\tFDT_PROP\n");
+}
+
+static struct emitter asm_emitter = {
+	.cell = asm_emit_cell,
+	.string = asm_emit_string,
+	.align = asm_emit_align,
+	.data = asm_emit_data,
+	.beginnode = asm_emit_beginnode,
+	.endnode = asm_emit_endnode,
+	.property = asm_emit_property,
+};
+
+static int stringtable_insert(struct data *d, const char *str)
+{
+	int i;
+
+	/* FIXME: do this more efficiently? */
+
+	for (i = 0; i < d->len; i++) {
+		if (streq(str, d->val + i))
+			return i;
+	}
+
+	*d = data_append_data(*d, str, strlen(str)+1);
+	return i;
+}
+
+static void flatten_tree(struct node *tree, struct emitter *emit,
+			 void *etarget, struct data *strbuf,
+			 struct version_info *vi)
+{
+	struct property *prop;
+	struct node *child;
+	int seen_name_prop = 0;
+
+	emit->beginnode(etarget, tree->label);
+
+	if (vi->flags & FTF_FULLPATH)
+		emit->string(etarget, tree->fullpath, 0);
+	else
+		emit->string(etarget, tree->name, 0);
+
+	emit->align(etarget, sizeof(cell_t));
+
+	for_each_property(tree, prop) {
+		int nameoff;
+
+		if (streq(prop->name, "name"))
+			seen_name_prop = 1;
+
+		nameoff = stringtable_insert(strbuf, prop->name);
+
+		emit->property(etarget, prop->label);
+		emit->cell(etarget, prop->val.len);
+		emit->cell(etarget, nameoff);
+
+		if ((vi->flags & FTF_VARALIGN) && (prop->val.len >= 8))
+			emit->align(etarget, 8);
+
+		emit->data(etarget, prop->val);
+		emit->align(etarget, sizeof(cell_t));
+	}
+
+	if ((vi->flags & FTF_NAMEPROPS) && !seen_name_prop) {
+		emit->property(etarget, NULL);
+		emit->cell(etarget, tree->basenamelen+1);
+		emit->cell(etarget, stringtable_insert(strbuf, "name"));
+
+		if ((vi->flags & FTF_VARALIGN) && ((tree->basenamelen+1) >= 8))
+			emit->align(etarget, 8);
+
+		emit->string(etarget, tree->name, tree->basenamelen);
+		emit->align(etarget, sizeof(cell_t));
+	}
+
+	for_each_child(tree, child) {
+		flatten_tree(child, emit, etarget, strbuf, vi);
+	}
+
+	emit->endnode(etarget, tree->label);
+}
+
+static struct data flatten_reserve_list(struct reserve_info *reservelist,
+				 struct version_info *vi)
+{
+	struct reserve_info *re;
+	struct data d = empty_data;
+	static struct fdt_reserve_entry null_re = {0,0};
+	int    j;
+
+	for (re = reservelist; re; re = re->next) {
+		d = data_append_re(d, &re->re);
+	}
+	/*
+	 * Add additional reserved slots if the user asked for them.
+	 */
+	for (j = 0; j < reservenum; j++) {
+		d = data_append_re(d, &null_re);
+	}
+
+	return d;
+}
+
+static void make_fdt_header(struct fdt_header *fdt,
+			    struct version_info *vi,
+			    int reservesize, int dtsize, int strsize,
+			    int boot_cpuid_phys)
+{
+	int reserve_off;
+
+	reservesize += sizeof(struct fdt_reserve_entry);
+
+	memset(fdt, 0xff, sizeof(*fdt));
+
+	fdt->magic = cpu_to_fdt32(FDT_MAGIC);
+	fdt->version = cpu_to_fdt32(vi->version);
+	fdt->last_comp_version = cpu_to_fdt32(vi->last_comp_version);
+
+	/* Reserve map should be doubleword aligned */
+	reserve_off = ALIGN(vi->hdr_size, 8);
+
+	fdt->off_mem_rsvmap = cpu_to_fdt32(reserve_off);
+	fdt->off_dt_struct = cpu_to_fdt32(reserve_off + reservesize);
+	fdt->off_dt_strings = cpu_to_fdt32(reserve_off + reservesize
+					  + dtsize);
+	fdt->totalsize = cpu_to_fdt32(reserve_off + reservesize + dtsize + strsize);
+
+	if (vi->flags & FTF_BOOTCPUID)
+		fdt->boot_cpuid_phys = cpu_to_fdt32(boot_cpuid_phys);
+	if (vi->flags & FTF_STRTABSIZE)
+		fdt->size_dt_strings = cpu_to_fdt32(strsize);
+	if (vi->flags & FTF_STRUCTSIZE)
+		fdt->size_dt_struct = cpu_to_fdt32(dtsize);
+}
+
+void dt_to_blob(FILE *f, struct boot_info *bi, int version)
+{
+	struct version_info *vi = NULL;
+	int i;
+	struct data blob       = empty_data;
+	struct data reservebuf = empty_data;
+	struct data dtbuf      = empty_data;
+	struct data strbuf     = empty_data;
+	struct fdt_header fdt;
+	int padlen = 0;
+
+	for (i = 0; i < ARRAY_SIZE(version_table); i++) {
+		if (version_table[i].version == version)
+			vi = &version_table[i];
+	}
+	if (!vi)
+		die("Unknown device tree blob version %d\n", version);
+
+	flatten_tree(bi->dt, &bin_emitter, &dtbuf, &strbuf, vi);
+	bin_emit_cell(&dtbuf, FDT_END);
+
+	reservebuf = flatten_reserve_list(bi->reservelist, vi);
+
+	/* Make header */
+	make_fdt_header(&fdt, vi, reservebuf.len, dtbuf.len, strbuf.len,
+			bi->boot_cpuid_phys);
+
+	/*
+	 * If the user asked for more space than is used, adjust the totalsize.
+	 */
+	if (minsize > 0) {
+		padlen = minsize - fdt32_to_cpu(fdt.totalsize);
+		if ((padlen < 0) && (quiet < 1))
+			fprintf(stderr,
+				"Warning: blob size %d >= minimum size %d\n",
+				fdt32_to_cpu(fdt.totalsize), minsize);
+	}
+
+	if (padsize > 0)
+		padlen = padsize;
+
+	if (padlen > 0) {
+		int tsize = fdt32_to_cpu(fdt.totalsize);
+		tsize += padlen;
+		fdt.totalsize = cpu_to_fdt32(tsize);
+	}
+
+	/*
+	 * Assemble the blob: start with the header, add with alignment
+	 * the reserve buffer, add the reserve map terminating zeroes,
+	 * the device tree itself, and finally the strings.
+	 */
+	blob = data_append_data(blob, &fdt, vi->hdr_size);
+	blob = data_append_align(blob, 8);
+	blob = data_merge(blob, reservebuf);
+	blob = data_append_zeroes(blob, sizeof(struct fdt_reserve_entry));
+	blob = data_merge(blob, dtbuf);
+	blob = data_merge(blob, strbuf);
+
+	/*
+	 * If the user asked for more space than is used, pad out the blob.
+	 */
+	if (padlen > 0)
+		blob = data_append_zeroes(blob, padlen);
+
+	fwrite(blob.val, blob.len, 1, f);
+
+	if (ferror(f))
+		die("Error writing device tree blob: %s\n", strerror(errno));
+
+	/*
+	 * data_merge() frees the right-hand element so only the blob
+	 * remains to be freed.
+	 */
+	data_free(blob);
+}
+
+static void dump_stringtable_asm(FILE *f, struct data strbuf)
+{
+	const char *p;
+	int len;
+
+	p = strbuf.val;
+
+	while (p < (strbuf.val + strbuf.len)) {
+		len = strlen(p);
+		fprintf(f, "\t.string \"%s\"\n", p);
+		p += len+1;
+	}
+}
+
+void dt_to_asm(FILE *f, struct boot_info *bi, int version)
+{
+	struct version_info *vi = NULL;
+	int i;
+	struct data strbuf = empty_data;
+	struct reserve_info *re;
+	const char *symprefix = "dt";
+
+	for (i = 0; i < ARRAY_SIZE(version_table); i++) {
+		if (version_table[i].version == version)
+			vi = &version_table[i];
+	}
+	if (!vi)
+		die("Unknown device tree blob version %d\n", version);
+
+	fprintf(f, "/* autogenerated by dtc, do not edit */\n\n");
+	fprintf(f, "#define FDT_MAGIC 0x%x\n", FDT_MAGIC);
+	fprintf(f, "#define FDT_BEGIN_NODE 0x%x\n", FDT_BEGIN_NODE);
+	fprintf(f, "#define FDT_END_NODE 0x%x\n", FDT_END_NODE);
+	fprintf(f, "#define FDT_PROP 0x%x\n", FDT_PROP);
+	fprintf(f, "#define FDT_END 0x%x\n", FDT_END);
+	fprintf(f, "\n");
+
+	emit_label(f, symprefix, "blob_start");
+	emit_label(f, symprefix, "header");
+	fprintf(f, "\t.long\tFDT_MAGIC\t\t\t\t/* magic */\n");
+	fprintf(f, "\t.long\t_%s_blob_abs_end - _%s_blob_start\t/* totalsize */\n",
+		symprefix, symprefix);
+	fprintf(f, "\t.long\t_%s_struct_start - _%s_blob_start\t/* off_dt_struct */\n",
+		symprefix, symprefix);
+	fprintf(f, "\t.long\t_%s_strings_start - _%s_blob_start\t/* off_dt_strings */\n",
+		symprefix, symprefix);
+	fprintf(f, "\t.long\t_%s_reserve_map - _%s_blob_start\t/* off_dt_strings */\n",
+		symprefix, symprefix);
+	fprintf(f, "\t.long\t%d\t\t\t\t\t/* version */\n", vi->version);
+	fprintf(f, "\t.long\t%d\t\t\t\t\t/* last_comp_version */\n",
+		vi->last_comp_version);
+
+	if (vi->flags & FTF_BOOTCPUID)
+		fprintf(f, "\t.long\t%i\t\t\t\t\t/* boot_cpuid_phys */\n",
+			bi->boot_cpuid_phys);
+
+	if (vi->flags & FTF_STRTABSIZE)
+		fprintf(f, "\t.long\t_%s_strings_end - _%s_strings_start\t/* size_dt_strings */\n",
+			symprefix, symprefix);
+
+	if (vi->flags & FTF_STRUCTSIZE)
+		fprintf(f, "\t.long\t_%s_struct_end - _%s_struct_start\t/* size_dt_struct */\n",
+			symprefix, symprefix);
+
+	/*
+	 * Reserve map entries.
+	 * Align the reserve map to a doubleword boundary.
+	 * Each entry is an (address, size) pair of u64 values.
+	 * Always supply a zero-sized temination entry.
+	 */
+	asm_emit_align(f, 8);
+	emit_label(f, symprefix, "reserve_map");
+
+	fprintf(f, "/* Memory reserve map from source file */\n");
+
+	/*
+	 * Use .long on high and low halfs of u64s to avoid .quad
+	 * as it appears .quad isn't available in some assemblers.
+	 */
+	for (re = bi->reservelist; re; re = re->next) {
+		if (re->label) {
+			fprintf(f, "\t.globl\t%s\n", re->label);
+			fprintf(f, "%s:\n", re->label);
+		}
+		fprintf(f, "\t.long\t0x%08x, 0x%08x\n",
+			(unsigned int)(re->re.address >> 32),
+			(unsigned int)(re->re.address & 0xffffffff));
+		fprintf(f, "\t.long\t0x%08x, 0x%08x\n",
+			(unsigned int)(re->re.size >> 32),
+			(unsigned int)(re->re.size & 0xffffffff));
+	}
+	for (i = 0; i < reservenum; i++) {
+		fprintf(f, "\t.long\t0, 0\n\t.long\t0, 0\n");
+	}
+
+	fprintf(f, "\t.long\t0, 0\n\t.long\t0, 0\n");
+
+	emit_label(f, symprefix, "struct_start");
+	flatten_tree(bi->dt, &asm_emitter, f, &strbuf, vi);
+	fprintf(f, "\t.long\tFDT_END\n");
+	emit_label(f, symprefix, "struct_end");
+
+	emit_label(f, symprefix, "strings_start");
+	dump_stringtable_asm(f, strbuf);
+	emit_label(f, symprefix, "strings_end");
+
+	emit_label(f, symprefix, "blob_end");
+
+	/*
+	 * If the user asked for more space than is used, pad it out.
+	 */
+	if (minsize > 0) {
+		fprintf(f, "\t.space\t%d - (_%s_blob_end - _%s_blob_start), 0\n",
+			minsize, symprefix, symprefix);
+	}
+	if (padsize > 0) {
+		fprintf(f, "\t.space\t%d, 0\n", padsize);
+	}
+	emit_label(f, symprefix, "blob_abs_end");
+
+	data_free(strbuf);
+}
+
+struct inbuf {
+	char *base, *limit, *ptr;
+};
+
+static void inbuf_init(struct inbuf *inb, void *base, void *limit)
+{
+	inb->base = base;
+	inb->limit = limit;
+	inb->ptr = inb->base;
+}
+
+static void flat_read_chunk(struct inbuf *inb, void *p, int len)
+{
+	if ((inb->ptr + len) > inb->limit)
+		die("Premature end of data parsing flat device tree\n");
+
+	memcpy(p, inb->ptr, len);
+
+	inb->ptr += len;
+}
+
+static uint32_t flat_read_word(struct inbuf *inb)
+{
+	uint32_t val;
+
+	assert(((inb->ptr - inb->base) % sizeof(val)) == 0);
+
+	flat_read_chunk(inb, &val, sizeof(val));
+
+	return fdt32_to_cpu(val);
+}
+
+static void flat_realign(struct inbuf *inb, int align)
+{
+	int off = inb->ptr - inb->base;
+
+	inb->ptr = inb->base + ALIGN(off, align);
+	if (inb->ptr > inb->limit)
+		die("Premature end of data parsing flat device tree\n");
+}
+
+static char *flat_read_string(struct inbuf *inb)
+{
+	int len = 0;
+	const char *p = inb->ptr;
+	char *str;
+
+	do {
+		if (p >= inb->limit)
+			die("Premature end of data parsing flat device tree\n");
+		len++;
+	} while ((*p++) != '\0');
+
+	str = strdup(inb->ptr);
+
+	inb->ptr += len;
+
+	flat_realign(inb, sizeof(uint32_t));
+
+	return str;
+}
+
+static struct data flat_read_data(struct inbuf *inb, int len)
+{
+	struct data d = empty_data;
+
+	if (len == 0)
+		return empty_data;
+
+	d = data_grow_for(d, len);
+	d.len = len;
+
+	flat_read_chunk(inb, d.val, len);
+
+	flat_realign(inb, sizeof(uint32_t));
+
+	return d;
+}
+
+static char *flat_read_stringtable(struct inbuf *inb, int offset)
+{
+	const char *p;
+
+	p = inb->base + offset;
+	while (1) {
+		if (p >= inb->limit || p < inb->base)
+			die("String offset %d overruns string table\n",
+			    offset);
+
+		if (*p == '\0')
+			break;
+
+		p++;
+	}
+
+	return strdup(inb->base + offset);
+}
+
+static struct property *flat_read_property(struct inbuf *dtbuf,
+					   struct inbuf *strbuf, int flags)
+{
+	uint32_t proplen, stroff;
+	char *name;
+	struct data val;
+
+	proplen = flat_read_word(dtbuf);
+	stroff = flat_read_word(dtbuf);
+
+	name = flat_read_stringtable(strbuf, stroff);
+
+	if ((flags & FTF_VARALIGN) && (proplen >= 8))
+		flat_realign(dtbuf, 8);
+
+	val = flat_read_data(dtbuf, proplen);
+
+	return build_property(name, val, NULL);
+}
+
+
+static struct reserve_info *flat_read_mem_reserve(struct inbuf *inb)
+{
+	struct reserve_info *reservelist = NULL;
+	struct reserve_info *new;
+	const char *p;
+	struct fdt_reserve_entry re;
+
+	/*
+	 * Each entry is a pair of u64 (addr, size) values for 4 cell_t's.
+	 * List terminates at an entry with size equal to zero.
+	 *
+	 * First pass, count entries.
+	 */
+	p = inb->ptr;
+	while (1) {
+		flat_read_chunk(inb, &re, sizeof(re));
+		re.address  = fdt64_to_cpu(re.address);
+		re.size = fdt64_to_cpu(re.size);
+		if (re.size == 0)
+			break;
+
+		new = build_reserve_entry(re.address, re.size, NULL);
+		reservelist = add_reserve_entry(reservelist, new);
+	}
+
+	return reservelist;
+}
+
+
+static char *nodename_from_path(const char *ppath, const char *cpath)
+{
+	int plen;
+
+	plen = strlen(ppath);
+
+	if (!strneq(ppath, cpath, plen))
+		die("Path \"%s\" is not valid as a child of \"%s\"\n",
+		    cpath, ppath);
+
+	/* root node is a special case */
+	if (!streq(ppath, "/"))
+		plen++;
+
+	return strdup(cpath + plen);
+}
+
+static struct node *unflatten_tree(struct inbuf *dtbuf,
+				   struct inbuf *strbuf,
+				   const char *parent_flatname, int flags)
+{
+	struct node *node;
+	char *flatname;
+	uint32_t val;
+
+	node = build_node(NULL, NULL);
+
+	flatname = flat_read_string(dtbuf);
+
+	if (flags & FTF_FULLPATH)
+		node->name = nodename_from_path(parent_flatname, flatname);
+	else
+		node->name = flatname;
+
+	do {
+		struct property *prop;
+		struct node *child;
+
+		val = flat_read_word(dtbuf);
+		switch (val) {
+		case FDT_PROP:
+			if (node->children)
+				fprintf(stderr, "Warning: Flat tree input has "
+					"subnodes preceding a property.\n");
+			prop = flat_read_property(dtbuf, strbuf, flags);
+			add_property(node, prop);
+			break;
+
+		case FDT_BEGIN_NODE:
+			child = unflatten_tree(dtbuf,strbuf, flatname, flags);
+			add_child(node, child);
+			break;
+
+		case FDT_END_NODE:
+			break;
+
+		case FDT_END:
+			die("Premature FDT_END in device tree blob\n");
+			break;
+
+		case FDT_NOP:
+			if (!(flags & FTF_NOPS))
+				fprintf(stderr, "Warning: NOP tag found in flat tree"
+					" version <16\n");
+
+			/* Ignore */
+			break;
+
+		default:
+			die("Invalid opcode word %08x in device tree blob\n",
+			    val);
+		}
+	} while (val != FDT_END_NODE);
+
+	return node;
+}
+
+
+struct boot_info *dt_from_blob(const char *fname)
+{
+	struct dtc_file *dtcf;
+	uint32_t magic, totalsize, version, size_dt, boot_cpuid_phys;
+	uint32_t off_dt, off_str, off_mem_rsvmap;
+	int rc;
+	char *blob;
+	struct fdt_header *fdt;
+	char *p;
+	struct inbuf dtbuf, strbuf;
+	struct inbuf memresvbuf;
+	int sizeleft;
+	struct reserve_info *reservelist;
+	struct node *tree;
+	uint32_t val;
+	int flags = 0;
+
+	dtcf = dtc_open_file(fname, NULL);
+
+	rc = fread(&magic, sizeof(magic), 1, dtcf->file);
+	if (ferror(dtcf->file))
+		die("Error reading DT blob magic number: %s\n",
+		    strerror(errno));
+	if (rc < 1) {
+		if (feof(dtcf->file))
+			die("EOF reading DT blob magic number\n");
+		else
+			die("Mysterious short read reading magic number\n");
+	}
+
+	magic = fdt32_to_cpu(magic);
+	if (magic != FDT_MAGIC)
+		die("Blob has incorrect magic number\n");
+
+	rc = fread(&totalsize, sizeof(totalsize), 1, dtcf->file);
+	if (ferror(dtcf->file))
+		die("Error reading DT blob size: %s\n", strerror(errno));
+	if (rc < 1) {
+		if (feof(dtcf->file))
+			die("EOF reading DT blob size\n");
+		else
+			die("Mysterious short read reading blob size\n");
+	}
+
+	totalsize = fdt32_to_cpu(totalsize);
+	if (totalsize < FDT_V1_SIZE)
+		die("DT blob size (%d) is too small\n", totalsize);
+
+	blob = xmalloc(totalsize);
+
+	fdt = (struct fdt_header *)blob;
+	fdt->magic = cpu_to_fdt32(magic);
+	fdt->totalsize = cpu_to_fdt32(totalsize);
+
+	sizeleft = totalsize - sizeof(magic) - sizeof(totalsize);
+	p = blob + sizeof(magic)  + sizeof(totalsize);
+
+	while (sizeleft) {
+		if (feof(dtcf->file))
+			die("EOF before reading %d bytes of DT blob\n",
+			    totalsize);
+
+		rc = fread(p, 1, sizeleft, dtcf->file);
+		if (ferror(dtcf->file))
+			die("Error reading DT blob: %s\n",
+			    strerror(errno));
+
+		sizeleft -= rc;
+		p += rc;
+	}
+
+	off_dt = fdt32_to_cpu(fdt->off_dt_struct);
+	off_str = fdt32_to_cpu(fdt->off_dt_strings);
+	off_mem_rsvmap = fdt32_to_cpu(fdt->off_mem_rsvmap);
+	version = fdt32_to_cpu(fdt->version);
+	boot_cpuid_phys = fdt32_to_cpu(fdt->boot_cpuid_phys);
+
+	if (off_mem_rsvmap >= totalsize)
+		die("Mem Reserve structure offset exceeds total size\n");
+
+	if (off_dt >= totalsize)
+		die("DT structure offset exceeds total size\n");
+
+	if (off_str > totalsize)
+		die("String table offset exceeds total size\n");
+
+	if (version >= 3) {
+		uint32_t size_str = fdt32_to_cpu(fdt->size_dt_strings);
+		if (off_str+size_str > totalsize)
+			die("String table extends past total size\n");
+		inbuf_init(&strbuf, blob + off_str, blob + off_str + size_str);
+	} else {
+		inbuf_init(&strbuf, blob + off_str, blob + totalsize);
+	}
+
+	if (version >= 17) {
+		size_dt = fdt32_to_cpu(fdt->size_dt_struct);
+		if (off_dt+size_dt > totalsize)
+			die("Structure block extends past total size\n");
+	}
+
+	if (version < 16) {
+		flags |= FTF_FULLPATH | FTF_NAMEPROPS | FTF_VARALIGN;
+	} else {
+		flags |= FTF_NOPS;
+	}
+
+	inbuf_init(&memresvbuf,
+		   blob + off_mem_rsvmap, blob + totalsize);
+	inbuf_init(&dtbuf, blob + off_dt, blob + totalsize);
+
+	reservelist = flat_read_mem_reserve(&memresvbuf);
+
+	val = flat_read_word(&dtbuf);
+
+	if (val != FDT_BEGIN_NODE)
+		die("Device tree blob doesn't begin with FDT_BEGIN_NODE (begins with 0x%08x)\n", val);
+
+	tree = unflatten_tree(&dtbuf, &strbuf, "", flags);
+
+	val = flat_read_word(&dtbuf);
+	if (val != FDT_END)
+		die("Device tree blob doesn't end with FDT_END\n");
+
+	free(blob);
+
+	dtc_close_file(dtcf);
+
+	return build_boot_info(reservelist, tree, boot_cpuid_phys);
+}
diff --git a/scripts/dtc/fstree.c b/scripts/dtc/fstree.c
new file mode 100644
index 00000000000..766b2694d93
--- /dev/null
+++ b/scripts/dtc/fstree.c
@@ -0,0 +1,92 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+#include "dtc.h"
+
+#include <dirent.h>
+#include <sys/stat.h>
+
+static struct node *read_fstree(const char *dirname)
+{
+	DIR *d;
+	struct dirent *de;
+	struct stat st;
+	struct node *tree;
+
+	d = opendir(dirname);
+	if (!d)
+		die("Couldn't opendir() \"%s\": %s\n", dirname, strerror(errno));
+
+	tree = build_node(NULL, NULL);
+
+	while ((de = readdir(d)) != NULL) {
+		char *tmpnam;
+
+		if (streq(de->d_name, ".")
+		    || streq(de->d_name, ".."))
+			continue;
+
+		tmpnam = join_path(dirname, de->d_name);
+
+		if (lstat(tmpnam, &st) < 0)
+			die("stat(%s): %s\n", tmpnam, strerror(errno));
+
+		if (S_ISREG(st.st_mode)) {
+			struct property *prop;
+			FILE *pfile;
+
+			pfile = fopen(tmpnam, "r");
+			if (! pfile) {
+				fprintf(stderr,
+					"WARNING: Cannot open %s: %s\n",
+					tmpnam, strerror(errno));
+			} else {
+				prop = build_property(strdup(de->d_name),
+						      data_copy_file(pfile,
+								     st.st_size),
+						      NULL);
+				add_property(tree, prop);
+				fclose(pfile);
+			}
+		} else if (S_ISDIR(st.st_mode)) {
+			struct node *newchild;
+
+			newchild = read_fstree(tmpnam);
+			newchild = name_node(newchild, strdup(de->d_name),
+					     NULL);
+			add_child(tree, newchild);
+		}
+
+		free(tmpnam);
+	}
+
+	return tree;
+}
+
+struct boot_info *dt_from_fs(const char *dirname)
+{
+	struct node *tree;
+
+	tree = read_fstree(dirname);
+	tree = name_node(tree, "", NULL);
+
+	return build_boot_info(NULL, tree, 0);
+}
+
diff --git a/scripts/dtc/libfdt/Makefile.libfdt b/scripts/dtc/libfdt/Makefile.libfdt
new file mode 100644
index 00000000000..6c42acfa21e
--- /dev/null
+++ b/scripts/dtc/libfdt/Makefile.libfdt
@@ -0,0 +1,8 @@
+# Makefile.libfdt
+#
+# This is not a complete Makefile of itself.  Instead, it is designed to
+# be easily embeddable into other systems of Makefiles.
+#
+LIBFDT_INCLUDES = fdt.h libfdt.h
+LIBFDT_SRCS = fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
+LIBFDT_OBJS = $(LIBFDT_SRCS:%.c=%.o)
diff --git a/scripts/dtc/libfdt/fdt.c b/scripts/dtc/libfdt/fdt.c
new file mode 100644
index 00000000000..2acaec5923a
--- /dev/null
+++ b/scripts/dtc/libfdt/fdt.c
@@ -0,0 +1,201 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this library; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ *  b) Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *     2. Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+int fdt_check_header(const void *fdt)
+{
+	if (fdt_magic(fdt) == FDT_MAGIC) {
+		/* Complete tree */
+		if (fdt_version(fdt) < FDT_FIRST_SUPPORTED_VERSION)
+			return -FDT_ERR_BADVERSION;
+		if (fdt_last_comp_version(fdt) > FDT_LAST_SUPPORTED_VERSION)
+			return -FDT_ERR_BADVERSION;
+	} else if (fdt_magic(fdt) == FDT_SW_MAGIC) {
+		/* Unfinished sequential-write blob */
+		if (fdt_size_dt_struct(fdt) == 0)
+			return -FDT_ERR_BADSTATE;
+	} else {
+		return -FDT_ERR_BADMAGIC;
+	}
+
+	return 0;
+}
+
+const void *fdt_offset_ptr(const void *fdt, int offset, int len)
+{
+	const char *p;
+
+	if (fdt_version(fdt) >= 0x11)
+		if (((offset + len) < offset)
+		    || ((offset + len) > fdt_size_dt_struct(fdt)))
+			return NULL;
+
+	p = _fdt_offset_ptr(fdt, offset);
+
+	if (p + len < p)
+		return NULL;
+	return p;
+}
+
+uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset)
+{
+	const uint32_t *tagp, *lenp;
+	uint32_t tag;
+	const char *p;
+
+	if (offset % FDT_TAGSIZE)
+		return -1;
+
+	tagp = fdt_offset_ptr(fdt, offset, FDT_TAGSIZE);
+	if (! tagp)
+		return FDT_END; /* premature end */
+	tag = fdt32_to_cpu(*tagp);
+	offset += FDT_TAGSIZE;
+
+	switch (tag) {
+	case FDT_BEGIN_NODE:
+		/* skip name */
+		do {
+			p = fdt_offset_ptr(fdt, offset++, 1);
+		} while (p && (*p != '\0'));
+		if (! p)
+			return FDT_END;
+		break;
+	case FDT_PROP:
+		lenp = fdt_offset_ptr(fdt, offset, sizeof(*lenp));
+		if (! lenp)
+			return FDT_END;
+		/* skip name offset, length and value */
+		offset += 2*FDT_TAGSIZE + fdt32_to_cpu(*lenp);
+		break;
+	}
+
+	if (nextoffset)
+		*nextoffset = FDT_TAGALIGN(offset);
+
+	return tag;
+}
+
+int _fdt_check_node_offset(const void *fdt, int offset)
+{
+	if ((offset < 0) || (offset % FDT_TAGSIZE)
+	    || (fdt_next_tag(fdt, offset, &offset) != FDT_BEGIN_NODE))
+		return -FDT_ERR_BADOFFSET;
+
+	return offset;
+}
+
+int fdt_next_node(const void *fdt, int offset, int *depth)
+{
+	int nextoffset = 0;
+	uint32_t tag;
+
+	if (offset >= 0)
+		if ((nextoffset = _fdt_check_node_offset(fdt, offset)) < 0)
+			return nextoffset;
+
+	do {
+		offset = nextoffset;
+		tag = fdt_next_tag(fdt, offset, &nextoffset);
+
+		switch (tag) {
+		case FDT_PROP:
+		case FDT_NOP:
+			break;
+
+		case FDT_BEGIN_NODE:
+			if (depth)
+				(*depth)++;
+			break;
+
+		case FDT_END_NODE:
+			if (depth)
+				(*depth)--;
+			break;
+
+		case FDT_END:
+			return -FDT_ERR_NOTFOUND;
+
+		default:
+			return -FDT_ERR_BADSTRUCTURE;
+		}
+	} while (tag != FDT_BEGIN_NODE);
+
+	return offset;
+}
+
+const char *_fdt_find_string(const char *strtab, int tabsize, const char *s)
+{
+	int len = strlen(s) + 1;
+	const char *last = strtab + tabsize - len;
+	const char *p;
+
+	for (p = strtab; p <= last; p++)
+		if (memcmp(p, s, len) == 0)
+			return p;
+	return NULL;
+}
+
+int fdt_move(const void *fdt, void *buf, int bufsize)
+{
+	FDT_CHECK_HEADER(fdt);
+
+	if (fdt_totalsize(fdt) > bufsize)
+		return -FDT_ERR_NOSPACE;
+
+	memmove(buf, fdt, fdt_totalsize(fdt));
+	return 0;
+}
diff --git a/scripts/dtc/libfdt/fdt.h b/scripts/dtc/libfdt/fdt.h
new file mode 100644
index 00000000000..48ccfd91000
--- /dev/null
+++ b/scripts/dtc/libfdt/fdt.h
@@ -0,0 +1,60 @@
+#ifndef _FDT_H
+#define _FDT_H
+
+#ifndef __ASSEMBLY__
+
+struct fdt_header {
+	uint32_t magic;			 /* magic word FDT_MAGIC */
+	uint32_t totalsize;		 /* total size of DT block */
+	uint32_t off_dt_struct;		 /* offset to structure */
+	uint32_t off_dt_strings;	 /* offset to strings */
+	uint32_t off_mem_rsvmap;	 /* offset to memory reserve map */
+	uint32_t version;		 /* format version */
+	uint32_t last_comp_version;	 /* last compatible version */
+
+	/* version 2 fields below */
+	uint32_t boot_cpuid_phys;	 /* Which physical CPU id we're
+					    booting on */
+	/* version 3 fields below */
+	uint32_t size_dt_strings;	 /* size of the strings block */
+
+	/* version 17 fields below */
+	uint32_t size_dt_struct;	 /* size of the structure block */
+};
+
+struct fdt_reserve_entry {
+	uint64_t address;
+	uint64_t size;
+};
+
+struct fdt_node_header {
+	uint32_t tag;
+	char name[0];
+};
+
+struct fdt_property {
+	uint32_t tag;
+	uint32_t len;
+	uint32_t nameoff;
+	char data[0];
+};
+
+#endif /* !__ASSEMBLY */
+
+#define FDT_MAGIC	0xd00dfeed	/* 4: version, 4: total size */
+#define FDT_TAGSIZE	sizeof(uint32_t)
+
+#define FDT_BEGIN_NODE	0x1		/* Start node: full name */
+#define FDT_END_NODE	0x2		/* End node */
+#define FDT_PROP	0x3		/* Property: name off,
+					   size, content */
+#define FDT_NOP		0x4		/* nop */
+#define FDT_END		0x9
+
+#define FDT_V1_SIZE	(7*sizeof(uint32_t))
+#define FDT_V2_SIZE	(FDT_V1_SIZE + sizeof(uint32_t))
+#define FDT_V3_SIZE	(FDT_V2_SIZE + sizeof(uint32_t))
+#define FDT_V16_SIZE	FDT_V3_SIZE
+#define FDT_V17_SIZE	(FDT_V16_SIZE + sizeof(uint32_t))
+
+#endif /* _FDT_H */
diff --git a/scripts/dtc/libfdt/fdt_ro.c b/scripts/dtc/libfdt/fdt_ro.c
new file mode 100644
index 00000000000..fbbba44fcd0
--- /dev/null
+++ b/scripts/dtc/libfdt/fdt_ro.c
@@ -0,0 +1,469 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this library; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ *  b) Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *     2. Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+static int _fdt_nodename_eq(const void *fdt, int offset,
+			    const char *s, int len)
+{
+	const char *p = fdt_offset_ptr(fdt, offset + FDT_TAGSIZE, len+1);
+
+	if (! p)
+		/* short match */
+		return 0;
+
+	if (memcmp(p, s, len) != 0)
+		return 0;
+
+	if (p[len] == '\0')
+		return 1;
+	else if (!memchr(s, '@', len) && (p[len] == '@'))
+		return 1;
+	else
+		return 0;
+}
+
+const char *fdt_string(const void *fdt, int stroffset)
+{
+	return (const char *)fdt + fdt_off_dt_strings(fdt) + stroffset;
+}
+
+int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size)
+{
+	FDT_CHECK_HEADER(fdt);
+	*address = fdt64_to_cpu(_fdt_mem_rsv(fdt, n)->address);
+	*size = fdt64_to_cpu(_fdt_mem_rsv(fdt, n)->size);
+	return 0;
+}
+
+int fdt_num_mem_rsv(const void *fdt)
+{
+	int i = 0;
+
+	while (fdt64_to_cpu(_fdt_mem_rsv(fdt, i)->size) != 0)
+		i++;
+	return i;
+}
+
+int fdt_subnode_offset_namelen(const void *fdt, int offset,
+			       const char *name, int namelen)
+{
+	int depth;
+
+	FDT_CHECK_HEADER(fdt);
+
+	for (depth = 0, offset = fdt_next_node(fdt, offset, &depth);
+	     (offset >= 0) && (depth > 0);
+	     offset = fdt_next_node(fdt, offset, &depth)) {
+		if (depth < 0)
+			return -FDT_ERR_NOTFOUND;
+		else if ((depth == 1)
+			 && _fdt_nodename_eq(fdt, offset, name, namelen))
+			return offset;
+	}
+
+	if (offset < 0)
+		return offset; /* error */
+	else
+		return -FDT_ERR_NOTFOUND;
+}
+
+int fdt_subnode_offset(const void *fdt, int parentoffset,
+		       const char *name)
+{
+	return fdt_subnode_offset_namelen(fdt, parentoffset, name, strlen(name));
+}
+
+int fdt_path_offset(const void *fdt, const char *path)
+{
+	const char *end = path + strlen(path);
+	const char *p = path;
+	int offset = 0;
+
+	FDT_CHECK_HEADER(fdt);
+
+	if (*path != '/')
+		return -FDT_ERR_BADPATH;
+
+	while (*p) {
+		const char *q;
+
+		while (*p == '/')
+			p++;
+		if (! *p)
+			return offset;
+		q = strchr(p, '/');
+		if (! q)
+			q = end;
+
+		offset = fdt_subnode_offset_namelen(fdt, offset, p, q-p);
+		if (offset < 0)
+			return offset;
+
+		p = q;
+	}
+
+	return offset;
+}
+
+const char *fdt_get_name(const void *fdt, int nodeoffset, int *len)
+{
+	const struct fdt_node_header *nh = _fdt_offset_ptr(fdt, nodeoffset);
+	int err;
+
+	if (((err = fdt_check_header(fdt)) != 0)
+	    || ((err = _fdt_check_node_offset(fdt, nodeoffset)) < 0))
+			goto fail;
+
+	if (len)
+		*len = strlen(nh->name);
+
+	return nh->name;
+
+ fail:
+	if (len)
+		*len = err;
+	return NULL;
+}
+
+const struct fdt_property *fdt_get_property(const void *fdt,
+					    int nodeoffset,
+					    const char *name, int *lenp)
+{
+	uint32_t tag;
+	const struct fdt_property *prop;
+	int namestroff;
+	int offset, nextoffset;
+	int err;
+
+	if (((err = fdt_check_header(fdt)) != 0)
+	    || ((err = _fdt_check_node_offset(fdt, nodeoffset)) < 0))
+			goto fail;
+
+	nextoffset = err;
+	do {
+		offset = nextoffset;
+
+		tag = fdt_next_tag(fdt, offset, &nextoffset);
+		switch (tag) {
+		case FDT_END:
+			err = -FDT_ERR_TRUNCATED;
+			goto fail;
+
+		case FDT_BEGIN_NODE:
+		case FDT_END_NODE:
+		case FDT_NOP:
+			break;
+
+		case FDT_PROP:
+			err = -FDT_ERR_BADSTRUCTURE;
+			prop = fdt_offset_ptr(fdt, offset, sizeof(*prop));
+			if (! prop)
+				goto fail;
+			namestroff = fdt32_to_cpu(prop->nameoff);
+			if (strcmp(fdt_string(fdt, namestroff), name) == 0) {
+				/* Found it! */
+				int len = fdt32_to_cpu(prop->len);
+				prop = fdt_offset_ptr(fdt, offset,
+						      sizeof(*prop)+len);
+				if (! prop)
+					goto fail;
+
+				if (lenp)
+					*lenp = len;
+
+				return prop;
+			}
+			break;
+
+		default:
+			err = -FDT_ERR_BADSTRUCTURE;
+			goto fail;
+		}
+	} while ((tag != FDT_BEGIN_NODE) && (tag != FDT_END_NODE));
+
+	err = -FDT_ERR_NOTFOUND;
+ fail:
+	if (lenp)
+		*lenp = err;
+	return NULL;
+}
+
+const void *fdt_getprop(const void *fdt, int nodeoffset,
+		  const char *name, int *lenp)
+{
+	const struct fdt_property *prop;
+
+	prop = fdt_get_property(fdt, nodeoffset, name, lenp);
+	if (! prop)
+		return NULL;
+
+	return prop->data;
+}
+
+uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
+{
+	const uint32_t *php;
+	int len;
+
+	php = fdt_getprop(fdt, nodeoffset, "linux,phandle", &len);
+	if (!php || (len != sizeof(*php)))
+		return 0;
+
+	return fdt32_to_cpu(*php);
+}
+
+int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
+{
+	int pdepth = 0, p = 0;
+	int offset, depth, namelen;
+	const char *name;
+
+	FDT_CHECK_HEADER(fdt);
+
+	if (buflen < 2)
+		return -FDT_ERR_NOSPACE;
+
+	for (offset = 0, depth = 0;
+	     (offset >= 0) && (offset <= nodeoffset);
+	     offset = fdt_next_node(fdt, offset, &depth)) {
+		if (pdepth < depth)
+			continue; /* overflowed buffer */
+
+		while (pdepth > depth) {
+			do {
+				p--;
+			} while (buf[p-1] != '/');
+			pdepth--;
+		}
+
+		name = fdt_get_name(fdt, offset, &namelen);
+		if (!name)
+			return namelen;
+		if ((p + namelen + 1) <= buflen) {
+			memcpy(buf + p, name, namelen);
+			p += namelen;
+			buf[p++] = '/';
+			pdepth++;
+		}
+
+		if (offset == nodeoffset) {
+			if (pdepth < (depth + 1))
+				return -FDT_ERR_NOSPACE;
+
+			if (p > 1) /* special case so that root path is "/", not "" */
+				p--;
+			buf[p] = '\0';
+			return p;
+		}
+	}
+
+	if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
+		return -FDT_ERR_BADOFFSET;
+	else if (offset == -FDT_ERR_BADOFFSET)
+		return -FDT_ERR_BADSTRUCTURE;
+
+	return offset; /* error from fdt_next_node() */
+}
+
+int fdt_supernode_atdepth_offset(const void *fdt, int nodeoffset,
+				 int supernodedepth, int *nodedepth)
+{
+	int offset, depth;
+	int supernodeoffset = -FDT_ERR_INTERNAL;
+
+	FDT_CHECK_HEADER(fdt);
+
+	if (supernodedepth < 0)
+		return -FDT_ERR_NOTFOUND;
+
+	for (offset = 0, depth = 0;
+	     (offset >= 0) && (offset <= nodeoffset);
+	     offset = fdt_next_node(fdt, offset, &depth)) {
+		if (depth == supernodedepth)
+			supernodeoffset = offset;
+
+		if (offset == nodeoffset) {
+			if (nodedepth)
+				*nodedepth = depth;
+
+			if (supernodedepth > depth)
+				return -FDT_ERR_NOTFOUND;
+			else
+				return supernodeoffset;
+		}
+	}
+
+	if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
+		return -FDT_ERR_BADOFFSET;
+	else if (offset == -FDT_ERR_BADOFFSET)
+		return -FDT_ERR_BADSTRUCTURE;
+
+	return offset; /* error from fdt_next_node() */
+}
+
+int fdt_node_depth(const void *fdt, int nodeoffset)
+{
+	int nodedepth;
+	int err;
+
+	err = fdt_supernode_atdepth_offset(fdt, nodeoffset, 0, &nodedepth);
+	if (err)
+		return (err < 0) ? err : -FDT_ERR_INTERNAL;
+	return nodedepth;
+}
+
+int fdt_parent_offset(const void *fdt, int nodeoffset)
+{
+	int nodedepth = fdt_node_depth(fdt, nodeoffset);
+
+	if (nodedepth < 0)
+		return nodedepth;
+	return fdt_supernode_atdepth_offset(fdt, nodeoffset,
+					    nodedepth - 1, NULL);
+}
+
+int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
+				  const char *propname,
+				  const void *propval, int proplen)
+{
+	int offset;
+	const void *val;
+	int len;
+
+	FDT_CHECK_HEADER(fdt);
+
+	/* FIXME: The algorithm here is pretty horrible: we scan each
+	 * property of a node in fdt_getprop(), then if that didn't
+	 * find what we want, we scan over them again making our way
+	 * to the next node.  Still it's the easiest to implement
+	 * approach; performance can come later. */
+	for (offset = fdt_next_node(fdt, startoffset, NULL);
+	     offset >= 0;
+	     offset = fdt_next_node(fdt, offset, NULL)) {
+		val = fdt_getprop(fdt, offset, propname, &len);
+		if (val && (len == proplen)
+		    && (memcmp(val, propval, len) == 0))
+			return offset;
+	}
+
+	return offset; /* error from fdt_next_node() */
+}
+
+int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle)
+{
+	if ((phandle == 0) || (phandle == -1))
+		return -FDT_ERR_BADPHANDLE;
+	phandle = cpu_to_fdt32(phandle);
+	return fdt_node_offset_by_prop_value(fdt, -1, "linux,phandle",
+					     &phandle, sizeof(phandle));
+}
+
+int _stringlist_contains(const char *strlist, int listlen, const char *str)
+{
+	int len = strlen(str);
+	const char *p;
+
+	while (listlen >= len) {
+		if (memcmp(str, strlist, len+1) == 0)
+			return 1;
+		p = memchr(strlist, '\0', listlen);
+		if (!p)
+			return 0; /* malformed strlist.. */
+		listlen -= (p-strlist) + 1;
+		strlist = p + 1;
+	}
+	return 0;
+}
+
+int fdt_node_check_compatible(const void *fdt, int nodeoffset,
+			      const char *compatible)
+{
+	const void *prop;
+	int len;
+
+	prop = fdt_getprop(fdt, nodeoffset, "compatible", &len);
+	if (!prop)
+		return len;
+	if (_stringlist_contains(prop, len, compatible))
+		return 0;
+	else
+		return 1;
+}
+
+int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
+				  const char *compatible)
+{
+	int offset, err;
+
+	FDT_CHECK_HEADER(fdt);
+
+	/* FIXME: The algorithm here is pretty horrible: we scan each
+	 * property of a node in fdt_node_check_compatible(), then if
+	 * that didn't find what we want, we scan over them again
+	 * making our way to the next node.  Still it's the easiest to
+	 * implement approach; performance can come later. */
+	for (offset = fdt_next_node(fdt, startoffset, NULL);
+	     offset >= 0;
+	     offset = fdt_next_node(fdt, offset, NULL)) {
+		err = fdt_node_check_compatible(fdt, offset, compatible);
+		if ((err < 0) && (err != -FDT_ERR_NOTFOUND))
+			return err;
+		else if (err == 0)
+			return offset;
+	}
+
+	return offset; /* error from fdt_next_node() */
+}
diff --git a/scripts/dtc/libfdt/fdt_rw.c b/scripts/dtc/libfdt/fdt_rw.c
new file mode 100644
index 00000000000..8e7ec4cb7bc
--- /dev/null
+++ b/scripts/dtc/libfdt/fdt_rw.c
@@ -0,0 +1,463 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this library; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ *  b) Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *     2. Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+static int _fdt_blocks_misordered(const void *fdt,
+			      int mem_rsv_size, int struct_size)
+{
+	return (fdt_off_mem_rsvmap(fdt) < FDT_ALIGN(sizeof(struct fdt_header), 8))
+		|| (fdt_off_dt_struct(fdt) <
+		    (fdt_off_mem_rsvmap(fdt) + mem_rsv_size))
+		|| (fdt_off_dt_strings(fdt) <
+		    (fdt_off_dt_struct(fdt) + struct_size))
+		|| (fdt_totalsize(fdt) <
+		    (fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)));
+}
+
+static int _fdt_rw_check_header(void *fdt)
+{
+	FDT_CHECK_HEADER(fdt);
+
+	if (fdt_version(fdt) < 17)
+		return -FDT_ERR_BADVERSION;
+	if (_fdt_blocks_misordered(fdt, sizeof(struct fdt_reserve_entry),
+				   fdt_size_dt_struct(fdt)))
+		return -FDT_ERR_BADLAYOUT;
+	if (fdt_version(fdt) > 17)
+		fdt_set_version(fdt, 17);
+
+	return 0;
+}
+
+#define FDT_RW_CHECK_HEADER(fdt) \
+	{ \
+		int err; \
+		if ((err = _fdt_rw_check_header(fdt)) != 0) \
+			return err; \
+	}
+
+static inline int _fdt_data_size(void *fdt)
+{
+	return fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);
+}
+
+static int _fdt_splice(void *fdt, void *splicepoint, int oldlen, int newlen)
+{
+	char *p = splicepoint;
+	char *end = (char *)fdt + _fdt_data_size(fdt);
+
+	if (((p + oldlen) < p) || ((p + oldlen) > end))
+		return -FDT_ERR_BADOFFSET;
+	if ((end - oldlen + newlen) > ((char *)fdt + fdt_totalsize(fdt)))
+		return -FDT_ERR_NOSPACE;
+	memmove(p + newlen, p + oldlen, end - p - oldlen);
+	return 0;
+}
+
+static int _fdt_splice_mem_rsv(void *fdt, struct fdt_reserve_entry *p,
+			       int oldn, int newn)
+{
+	int delta = (newn - oldn) * sizeof(*p);
+	int err;
+	err = _fdt_splice(fdt, p, oldn * sizeof(*p), newn * sizeof(*p));
+	if (err)
+		return err;
+	fdt_set_off_dt_struct(fdt, fdt_off_dt_struct(fdt) + delta);
+	fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
+	return 0;
+}
+
+static int _fdt_splice_struct(void *fdt, void *p,
+			      int oldlen, int newlen)
+{
+	int delta = newlen - oldlen;
+	int err;
+
+	if ((err = _fdt_splice(fdt, p, oldlen, newlen)))
+		return err;
+
+	fdt_set_size_dt_struct(fdt, fdt_size_dt_struct(fdt) + delta);
+	fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
+	return 0;
+}
+
+static int _fdt_splice_string(void *fdt, int newlen)
+{
+	void *p = (char *)fdt
+		+ fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);
+	int err;
+
+	if ((err = _fdt_splice(fdt, p, 0, newlen)))
+		return err;
+
+	fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) + newlen);
+	return 0;
+}
+
+static int _fdt_find_add_string(void *fdt, const char *s)
+{
+	char *strtab = (char *)fdt + fdt_off_dt_strings(fdt);
+	const char *p;
+	char *new;
+	int len = strlen(s) + 1;
+	int err;
+
+	p = _fdt_find_string(strtab, fdt_size_dt_strings(fdt), s);
+	if (p)
+		/* found it */
+		return (p - strtab);
+
+	new = strtab + fdt_size_dt_strings(fdt);
+	err = _fdt_splice_string(fdt, len);
+	if (err)
+		return err;
+
+	memcpy(new, s, len);
+	return (new - strtab);
+}
+
+int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size)
+{
+	struct fdt_reserve_entry *re;
+	int err;
+
+	FDT_RW_CHECK_HEADER(fdt);
+
+	re = _fdt_mem_rsv_w(fdt, fdt_num_mem_rsv(fdt));
+	err = _fdt_splice_mem_rsv(fdt, re, 0, 1);
+	if (err)
+		return err;
+
+	re->address = cpu_to_fdt64(address);
+	re->size = cpu_to_fdt64(size);
+	return 0;
+}
+
+int fdt_del_mem_rsv(void *fdt, int n)
+{
+	struct fdt_reserve_entry *re = _fdt_mem_rsv_w(fdt, n);
+	int err;
+
+	FDT_RW_CHECK_HEADER(fdt);
+
+	if (n >= fdt_num_mem_rsv(fdt))
+		return -FDT_ERR_NOTFOUND;
+
+	err = _fdt_splice_mem_rsv(fdt, re, 1, 0);
+	if (err)
+		return err;
+	return 0;
+}
+
+static int _fdt_resize_property(void *fdt, int nodeoffset, const char *name,
+				int len, struct fdt_property **prop)
+{
+	int oldlen;
+	int err;
+
+	*prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
+	if (! (*prop))
+		return oldlen;
+
+	if ((err = _fdt_splice_struct(fdt, (*prop)->data, FDT_TAGALIGN(oldlen),
+				      FDT_TAGALIGN(len))))
+		return err;
+
+	(*prop)->len = cpu_to_fdt32(len);
+	return 0;
+}
+
+static int _fdt_add_property(void *fdt, int nodeoffset, const char *name,
+			     int len, struct fdt_property **prop)
+{
+	int proplen;
+	int nextoffset;
+	int namestroff;
+	int err;
+
+	if ((nextoffset = _fdt_check_node_offset(fdt, nodeoffset)) < 0)
+		return nextoffset;
+
+	namestroff = _fdt_find_add_string(fdt, name);
+	if (namestroff < 0)
+		return namestroff;
+
+	*prop = _fdt_offset_ptr_w(fdt, nextoffset);
+	proplen = sizeof(**prop) + FDT_TAGALIGN(len);
+
+	err = _fdt_splice_struct(fdt, *prop, 0, proplen);
+	if (err)
+		return err;
+
+	(*prop)->tag = cpu_to_fdt32(FDT_PROP);
+	(*prop)->nameoff = cpu_to_fdt32(namestroff);
+	(*prop)->len = cpu_to_fdt32(len);
+	return 0;
+}
+
+int fdt_set_name(void *fdt, int nodeoffset, const char *name)
+{
+	char *namep;
+	int oldlen, newlen;
+	int err;
+
+	FDT_RW_CHECK_HEADER(fdt);
+
+	namep = (char *)(uintptr_t)fdt_get_name(fdt, nodeoffset, &oldlen);
+	if (!namep)
+		return oldlen;
+
+	newlen = strlen(name);
+
+	err = _fdt_splice_struct(fdt, namep, FDT_TAGALIGN(oldlen+1),
+				 FDT_TAGALIGN(newlen+1));
+	if (err)
+		return err;
+
+	memcpy(namep, name, newlen+1);
+	return 0;
+}
+
+int fdt_setprop(void *fdt, int nodeoffset, const char *name,
+		const void *val, int len)
+{
+	struct fdt_property *prop;
+	int err;
+
+	FDT_RW_CHECK_HEADER(fdt);
+
+	err = _fdt_resize_property(fdt, nodeoffset, name, len, &prop);
+	if (err == -FDT_ERR_NOTFOUND)
+		err = _fdt_add_property(fdt, nodeoffset, name, len, &prop);
+	if (err)
+		return err;
+
+	memcpy(prop->data, val, len);
+	return 0;
+}
+
+int fdt_delprop(void *fdt, int nodeoffset, const char *name)
+{
+	struct fdt_property *prop;
+	int len, proplen;
+
+	FDT_RW_CHECK_HEADER(fdt);
+
+	prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
+	if (! prop)
+		return len;
+
+	proplen = sizeof(*prop) + FDT_TAGALIGN(len);
+	return _fdt_splice_struct(fdt, prop, proplen, 0);
+}
+
+int fdt_add_subnode_namelen(void *fdt, int parentoffset,
+			    const char *name, int namelen)
+{
+	struct fdt_node_header *nh;
+	int offset, nextoffset;
+	int nodelen;
+	int err;
+	uint32_t tag;
+	uint32_t *endtag;
+
+	FDT_RW_CHECK_HEADER(fdt);
+
+	offset = fdt_subnode_offset_namelen(fdt, parentoffset, name, namelen);
+	if (offset >= 0)
+		return -FDT_ERR_EXISTS;
+	else if (offset != -FDT_ERR_NOTFOUND)
+		return offset;
+
+	/* Try to place the new node after the parent's properties */
+	fdt_next_tag(fdt, parentoffset, &nextoffset); /* skip the BEGIN_NODE */
+	do {
+		offset = nextoffset;
+		tag = fdt_next_tag(fdt, offset, &nextoffset);
+	} while ((tag == FDT_PROP) || (tag == FDT_NOP));
+
+	nh = _fdt_offset_ptr_w(fdt, offset);
+	nodelen = sizeof(*nh) + FDT_TAGALIGN(namelen+1) + FDT_TAGSIZE;
+
+	err = _fdt_splice_struct(fdt, nh, 0, nodelen);
+	if (err)
+		return err;
+
+	nh->tag = cpu_to_fdt32(FDT_BEGIN_NODE);
+	memset(nh->name, 0, FDT_TAGALIGN(namelen+1));
+	memcpy(nh->name, name, namelen);
+	endtag = (uint32_t *)((char *)nh + nodelen - FDT_TAGSIZE);
+	*endtag = cpu_to_fdt32(FDT_END_NODE);
+
+	return offset;
+}
+
+int fdt_add_subnode(void *fdt, int parentoffset, const char *name)
+{
+	return fdt_add_subnode_namelen(fdt, parentoffset, name, strlen(name));
+}
+
+int fdt_del_node(void *fdt, int nodeoffset)
+{
+	int endoffset;
+
+	FDT_RW_CHECK_HEADER(fdt);
+
+	endoffset = _fdt_node_end_offset(fdt, nodeoffset);
+	if (endoffset < 0)
+		return endoffset;
+
+	return _fdt_splice_struct(fdt, _fdt_offset_ptr_w(fdt, nodeoffset),
+				  endoffset - nodeoffset, 0);
+}
+
+static void _fdt_packblocks(const char *old, char *new,
+			    int mem_rsv_size, int struct_size)
+{
+	int mem_rsv_off, struct_off, strings_off;
+
+	mem_rsv_off = FDT_ALIGN(sizeof(struct fdt_header), 8);
+	struct_off = mem_rsv_off + mem_rsv_size;
+	strings_off = struct_off + struct_size;
+
+	memmove(new + mem_rsv_off, old + fdt_off_mem_rsvmap(old), mem_rsv_size);
+	fdt_set_off_mem_rsvmap(new, mem_rsv_off);
+
+	memmove(new + struct_off, old + fdt_off_dt_struct(old), struct_size);
+	fdt_set_off_dt_struct(new, struct_off);
+	fdt_set_size_dt_struct(new, struct_size);
+
+	memmove(new + strings_off, old + fdt_off_dt_strings(old),
+		fdt_size_dt_strings(old));
+	fdt_set_off_dt_strings(new, strings_off);
+	fdt_set_size_dt_strings(new, fdt_size_dt_strings(old));
+}
+
+int fdt_open_into(const void *fdt, void *buf, int bufsize)
+{
+	int err;
+	int mem_rsv_size, struct_size;
+	int newsize;
+	const char *fdtstart = fdt;
+	const char *fdtend = fdtstart + fdt_totalsize(fdt);
+	char *tmp;
+
+	FDT_CHECK_HEADER(fdt);
+
+	mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
+		* sizeof(struct fdt_reserve_entry);
+
+	if (fdt_version(fdt) >= 17) {
+		struct_size = fdt_size_dt_struct(fdt);
+	} else {
+		struct_size = 0;
+		while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END)
+			;
+	}
+
+	if (!_fdt_blocks_misordered(fdt, mem_rsv_size, struct_size)) {
+		/* no further work necessary */
+		err = fdt_move(fdt, buf, bufsize);
+		if (err)
+			return err;
+		fdt_set_version(buf, 17);
+		fdt_set_size_dt_struct(buf, struct_size);
+		fdt_set_totalsize(buf, bufsize);
+		return 0;
+	}
+
+	/* Need to reorder */
+	newsize = FDT_ALIGN(sizeof(struct fdt_header), 8) + mem_rsv_size
+		+ struct_size + fdt_size_dt_strings(fdt);
+
+	if (bufsize < newsize)
+		return -FDT_ERR_NOSPACE;
+
+	/* First attempt to build converted tree at beginning of buffer */
+	tmp = buf;
+	/* But if that overlaps with the old tree... */
+	if (((tmp + newsize) > fdtstart) && (tmp < fdtend)) {
+		/* Try right after the old tree instead */
+		tmp = (char *)(uintptr_t)fdtend;
+		if ((tmp + newsize) > ((char *)buf + bufsize))
+			return -FDT_ERR_NOSPACE;
+	}
+
+	_fdt_packblocks(fdt, tmp, mem_rsv_size, struct_size);
+	memmove(buf, tmp, newsize);
+
+	fdt_set_magic(buf, FDT_MAGIC);
+	fdt_set_totalsize(buf, bufsize);
+	fdt_set_version(buf, 17);
+	fdt_set_last_comp_version(buf, 16);
+	fdt_set_boot_cpuid_phys(buf, fdt_boot_cpuid_phys(fdt));
+
+	return 0;
+}
+
+int fdt_pack(void *fdt)
+{
+	int mem_rsv_size;
+
+	FDT_RW_CHECK_HEADER(fdt);
+
+	mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
+		* sizeof(struct fdt_reserve_entry);
+	_fdt_packblocks(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt));
+	fdt_set_totalsize(fdt, _fdt_data_size(fdt));
+
+	return 0;
+}
diff --git a/scripts/dtc/libfdt/fdt_strerror.c b/scripts/dtc/libfdt/fdt_strerror.c
new file mode 100644
index 00000000000..e6c3ceee8c5
--- /dev/null
+++ b/scripts/dtc/libfdt/fdt_strerror.c
@@ -0,0 +1,96 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this library; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ *  b) Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *     2. Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+struct fdt_errtabent {
+	const char *str;
+};
+
+#define FDT_ERRTABENT(val) \
+	[(val)] = { .str = #val, }
+
+static struct fdt_errtabent fdt_errtable[] = {
+	FDT_ERRTABENT(FDT_ERR_NOTFOUND),
+	FDT_ERRTABENT(FDT_ERR_EXISTS),
+	FDT_ERRTABENT(FDT_ERR_NOSPACE),
+
+	FDT_ERRTABENT(FDT_ERR_BADOFFSET),
+	FDT_ERRTABENT(FDT_ERR_BADPATH),
+	FDT_ERRTABENT(FDT_ERR_BADSTATE),
+
+	FDT_ERRTABENT(FDT_ERR_TRUNCATED),
+	FDT_ERRTABENT(FDT_ERR_BADMAGIC),
+	FDT_ERRTABENT(FDT_ERR_BADVERSION),
+	FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
+	FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
+};
+#define FDT_ERRTABSIZE	(sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
+
+const char *fdt_strerror(int errval)
+{
+	if (errval > 0)
+		return "<valid offset/length>";
+	else if (errval == 0)
+		return "<no error>";
+	else if (errval > -FDT_ERRTABSIZE) {
+		const char *s = fdt_errtable[-errval].str;
+
+		if (s)
+			return s;
+	}
+
+	return "<unknown error>";
+}
diff --git a/scripts/dtc/libfdt/fdt_sw.c b/scripts/dtc/libfdt/fdt_sw.c
new file mode 100644
index 00000000000..698329e0cca
--- /dev/null
+++ b/scripts/dtc/libfdt/fdt_sw.c
@@ -0,0 +1,257 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this library; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ *  b) Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *     2. Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+static int _fdt_sw_check_header(void *fdt)
+{
+	if (fdt_magic(fdt) != FDT_SW_MAGIC)
+		return -FDT_ERR_BADMAGIC;
+	/* FIXME: should check more details about the header state */
+	return 0;
+}
+
+#define FDT_SW_CHECK_HEADER(fdt) \
+	{ \
+		int err; \
+		if ((err = _fdt_sw_check_header(fdt)) != 0) \
+			return err; \
+	}
+
+static void *_fdt_grab_space(void *fdt, int len)
+{
+	int offset = fdt_size_dt_struct(fdt);
+	int spaceleft;
+
+	spaceleft = fdt_totalsize(fdt) - fdt_off_dt_struct(fdt)
+		- fdt_size_dt_strings(fdt);
+
+	if ((offset + len < offset) || (offset + len > spaceleft))
+		return NULL;
+
+	fdt_set_size_dt_struct(fdt, offset + len);
+	return fdt_offset_ptr_w(fdt, offset, len);
+}
+
+int fdt_create(void *buf, int bufsize)
+{
+	void *fdt = buf;
+
+	if (bufsize < sizeof(struct fdt_header))
+		return -FDT_ERR_NOSPACE;
+
+	memset(buf, 0, bufsize);
+
+	fdt_set_magic(fdt, FDT_SW_MAGIC);
+	fdt_set_version(fdt, FDT_LAST_SUPPORTED_VERSION);
+	fdt_set_last_comp_version(fdt, FDT_FIRST_SUPPORTED_VERSION);
+	fdt_set_totalsize(fdt,  bufsize);
+
+	fdt_set_off_mem_rsvmap(fdt, FDT_ALIGN(sizeof(struct fdt_header),
+					      sizeof(struct fdt_reserve_entry)));
+	fdt_set_off_dt_struct(fdt, fdt_off_mem_rsvmap(fdt));
+	fdt_set_off_dt_strings(fdt, bufsize);
+
+	return 0;
+}
+
+int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size)
+{
+	struct fdt_reserve_entry *re;
+	int offset;
+
+	FDT_SW_CHECK_HEADER(fdt);
+
+	if (fdt_size_dt_struct(fdt))
+		return -FDT_ERR_BADSTATE;
+
+	offset = fdt_off_dt_struct(fdt);
+	if ((offset + sizeof(*re)) > fdt_totalsize(fdt))
+		return -FDT_ERR_NOSPACE;
+
+	re = (struct fdt_reserve_entry *)((char *)fdt + offset);
+	re->address = cpu_to_fdt64(addr);
+	re->size = cpu_to_fdt64(size);
+
+	fdt_set_off_dt_struct(fdt, offset + sizeof(*re));
+
+	return 0;
+}
+
+int fdt_finish_reservemap(void *fdt)
+{
+	return fdt_add_reservemap_entry(fdt, 0, 0);
+}
+
+int fdt_begin_node(void *fdt, const char *name)
+{
+	struct fdt_node_header *nh;
+	int namelen = strlen(name) + 1;
+
+	FDT_SW_CHECK_HEADER(fdt);
+
+	nh = _fdt_grab_space(fdt, sizeof(*nh) + FDT_TAGALIGN(namelen));
+	if (! nh)
+		return -FDT_ERR_NOSPACE;
+
+	nh->tag = cpu_to_fdt32(FDT_BEGIN_NODE);
+	memcpy(nh->name, name, namelen);
+	return 0;
+}
+
+int fdt_end_node(void *fdt)
+{
+	uint32_t *en;
+
+	FDT_SW_CHECK_HEADER(fdt);
+
+	en = _fdt_grab_space(fdt, FDT_TAGSIZE);
+	if (! en)
+		return -FDT_ERR_NOSPACE;
+
+	*en = cpu_to_fdt32(FDT_END_NODE);
+	return 0;
+}
+
+static int _fdt_find_add_string(void *fdt, const char *s)
+{
+	char *strtab = (char *)fdt + fdt_totalsize(fdt);
+	const char *p;
+	int strtabsize = fdt_size_dt_strings(fdt);
+	int len = strlen(s) + 1;
+	int struct_top, offset;
+
+	p = _fdt_find_string(strtab - strtabsize, strtabsize, s);
+	if (p)
+		return p - strtab;
+
+	/* Add it */
+	offset = -strtabsize - len;
+	struct_top = fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt);
+	if (fdt_totalsize(fdt) + offset < struct_top)
+		return 0; /* no more room :( */
+
+	memcpy(strtab + offset, s, len);
+	fdt_set_size_dt_strings(fdt, strtabsize + len);
+	return offset;
+}
+
+int fdt_property(void *fdt, const char *name, const void *val, int len)
+{
+	struct fdt_property *prop;
+	int nameoff;
+
+	FDT_SW_CHECK_HEADER(fdt);
+
+	nameoff = _fdt_find_add_string(fdt, name);
+	if (nameoff == 0)
+		return -FDT_ERR_NOSPACE;
+
+	prop = _fdt_grab_space(fdt, sizeof(*prop) + FDT_TAGALIGN(len));
+	if (! prop)
+		return -FDT_ERR_NOSPACE;
+
+	prop->tag = cpu_to_fdt32(FDT_PROP);
+	prop->nameoff = cpu_to_fdt32(nameoff);
+	prop->len = cpu_to_fdt32(len);
+	memcpy(prop->data, val, len);
+	return 0;
+}
+
+int fdt_finish(void *fdt)
+{
+	char *p = (char *)fdt;
+	uint32_t *end;
+	int oldstroffset, newstroffset;
+	uint32_t tag;
+	int offset, nextoffset;
+
+	FDT_SW_CHECK_HEADER(fdt);
+
+	/* Add terminator */
+	end = _fdt_grab_space(fdt, sizeof(*end));
+	if (! end)
+		return -FDT_ERR_NOSPACE;
+	*end = cpu_to_fdt32(FDT_END);
+
+	/* Relocate the string table */
+	oldstroffset = fdt_totalsize(fdt) - fdt_size_dt_strings(fdt);
+	newstroffset = fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt);
+	memmove(p + newstroffset, p + oldstroffset, fdt_size_dt_strings(fdt));
+	fdt_set_off_dt_strings(fdt, newstroffset);
+
+	/* Walk the structure, correcting string offsets */
+	offset = 0;
+	while ((tag = fdt_next_tag(fdt, offset, &nextoffset)) != FDT_END) {
+		if (tag == FDT_PROP) {
+			struct fdt_property *prop =
+				fdt_offset_ptr_w(fdt, offset, sizeof(*prop));
+			int nameoff;
+
+			if (! prop)
+				return -FDT_ERR_BADSTRUCTURE;
+
+			nameoff = fdt32_to_cpu(prop->nameoff);
+			nameoff += fdt_size_dt_strings(fdt);
+			prop->nameoff = cpu_to_fdt32(nameoff);
+		}
+		offset = nextoffset;
+	}
+
+	/* Finally, adjust the header */
+	fdt_set_totalsize(fdt, newstroffset + fdt_size_dt_strings(fdt));
+	fdt_set_magic(fdt, FDT_MAGIC);
+	return 0;
+}
diff --git a/scripts/dtc/libfdt/fdt_wip.c b/scripts/dtc/libfdt/fdt_wip.c
new file mode 100644
index 00000000000..a4652c6e787
--- /dev/null
+++ b/scripts/dtc/libfdt/fdt_wip.c
@@ -0,0 +1,145 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this library; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ *  b) Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *     2. Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
+			const void *val, int len)
+{
+	void *propval;
+	int proplen;
+
+	propval = fdt_getprop_w(fdt, nodeoffset, name, &proplen);
+	if (! propval)
+		return proplen;
+
+	if (proplen != len)
+		return -FDT_ERR_NOSPACE;
+
+	memcpy(propval, val, len);
+	return 0;
+}
+
+static void _fdt_nop_region(void *start, int len)
+{
+	uint32_t *p;
+
+	for (p = start; (char *)p < ((char *)start + len); p++)
+		*p = cpu_to_fdt32(FDT_NOP);
+}
+
+int fdt_nop_property(void *fdt, int nodeoffset, const char *name)
+{
+	struct fdt_property *prop;
+	int len;
+
+	prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
+	if (! prop)
+		return len;
+
+	_fdt_nop_region(prop, len + sizeof(*prop));
+
+	return 0;
+}
+
+int _fdt_node_end_offset(void *fdt, int nodeoffset)
+{
+	int level = 0;
+	uint32_t tag;
+	int offset, nextoffset;
+
+	tag = fdt_next_tag(fdt, nodeoffset, &nextoffset);
+	if (tag != FDT_BEGIN_NODE)
+		return -FDT_ERR_BADOFFSET;
+	do {
+		offset = nextoffset;
+		tag = fdt_next_tag(fdt, offset, &nextoffset);
+
+		switch (tag) {
+		case FDT_END:
+			return offset;
+
+		case FDT_BEGIN_NODE:
+			level++;
+			break;
+
+		case FDT_END_NODE:
+			level--;
+			break;
+
+		case FDT_PROP:
+		case FDT_NOP:
+			break;
+
+		default:
+			return -FDT_ERR_BADSTRUCTURE;
+		}
+	} while (level >= 0);
+
+	return nextoffset;
+}
+
+int fdt_nop_node(void *fdt, int nodeoffset)
+{
+	int endoffset;
+
+	endoffset = _fdt_node_end_offset(fdt, nodeoffset);
+	if (endoffset < 0)
+		return endoffset;
+
+	_fdt_nop_region(fdt_offset_ptr_w(fdt, nodeoffset, 0),
+			endoffset - nodeoffset);
+	return 0;
+}
diff --git a/scripts/dtc/libfdt/libfdt.h b/scripts/dtc/libfdt/libfdt.h
new file mode 100644
index 00000000000..ce80e4fb41b
--- /dev/null
+++ b/scripts/dtc/libfdt/libfdt.h
@@ -0,0 +1,1076 @@
+#ifndef _LIBFDT_H
+#define _LIBFDT_H
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this library; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ *  b) Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *     2. Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <libfdt_env.h>
+#include <fdt.h>
+
+#define FDT_FIRST_SUPPORTED_VERSION	0x10
+#define FDT_LAST_SUPPORTED_VERSION	0x11
+
+/* Error codes: informative error codes */
+#define FDT_ERR_NOTFOUND	1
+	/* FDT_ERR_NOTFOUND: The requested node or property does not exist */
+#define FDT_ERR_EXISTS		2
+	/* FDT_ERR_EXISTS: Attemped to create a node or property which
+	 * already exists */
+#define FDT_ERR_NOSPACE		3
+	/* FDT_ERR_NOSPACE: Operation needed to expand the device
+	 * tree, but its buffer did not have sufficient space to
+	 * contain the expanded tree. Use fdt_open_into() to move the
+	 * device tree to a buffer with more space. */
+
+/* Error codes: codes for bad parameters */
+#define FDT_ERR_BADOFFSET	4
+	/* FDT_ERR_BADOFFSET: Function was passed a structure block
+	 * offset which is out-of-bounds, or which points to an
+	 * unsuitable part of the structure for the operation. */
+#define FDT_ERR_BADPATH		5
+	/* FDT_ERR_BADPATH: Function was passed a badly formatted path
+	 * (e.g. missing a leading / for a function which requires an
+	 * absolute path) */
+#define FDT_ERR_BADPHANDLE	6
+	/* FDT_ERR_BADPHANDLE: Function was passed an invalid phandle
+	 * value.  phandle values of 0 and -1 are not permitted. */
+#define FDT_ERR_BADSTATE	7
+	/* FDT_ERR_BADSTATE: Function was passed an incomplete device
+	 * tree created by the sequential-write functions, which is
+	 * not sufficiently complete for the requested operation. */
+
+/* Error codes: codes for bad device tree blobs */
+#define FDT_ERR_TRUNCATED	8
+	/* FDT_ERR_TRUNCATED: Structure block of the given device tree
+	 * ends without an FDT_END tag. */
+#define FDT_ERR_BADMAGIC	9
+	/* FDT_ERR_BADMAGIC: Given "device tree" appears not to be a
+	 * device tree at all - it is missing the flattened device
+	 * tree magic number. */
+#define FDT_ERR_BADVERSION	10
+	/* FDT_ERR_BADVERSION: Given device tree has a version which
+	 * can't be handled by the requested operation.  For
+	 * read-write functions, this may mean that fdt_open_into() is
+	 * required to convert the tree to the expected version. */
+#define FDT_ERR_BADSTRUCTURE	11
+	/* FDT_ERR_BADSTRUCTURE: Given device tree has a corrupt
+	 * structure block or other serious error (e.g. misnested
+	 * nodes, or subnodes preceding properties). */
+#define FDT_ERR_BADLAYOUT	12
+	/* FDT_ERR_BADLAYOUT: For read-write functions, the given
+	 * device tree has it's sub-blocks in an order that the
+	 * function can't handle (memory reserve map, then structure,
+	 * then strings).  Use fdt_open_into() to reorganize the tree
+	 * into a form suitable for the read-write operations. */
+
+/* "Can't happen" error indicating a bug in libfdt */
+#define FDT_ERR_INTERNAL	13
+	/* FDT_ERR_INTERNAL: libfdt has failed an internal assertion.
+	 * Should never be returned, if it is, it indicates a bug in
+	 * libfdt itself. */
+
+#define FDT_ERR_MAX		13
+
+/**********************************************************************/
+/* Low-level functions (you probably don't need these)                */
+/**********************************************************************/
+
+const void *fdt_offset_ptr(const void *fdt, int offset, int checklen);
+static inline void *fdt_offset_ptr_w(void *fdt, int offset, int checklen)
+{
+	return (void *)(uintptr_t)fdt_offset_ptr(fdt, offset, checklen);
+}
+
+uint32_t fdt_next_tag(const void *fdt, int offset, int *nextoffset);
+
+/**********************************************************************/
+/* Traversal functions                                                */
+/**********************************************************************/
+
+int fdt_next_node(const void *fdt, int offset, int *depth);
+
+/**********************************************************************/
+/* General functions                                                  */
+/**********************************************************************/
+
+#define fdt_get_header(fdt, field) \
+	(fdt32_to_cpu(((const struct fdt_header *)(fdt))->field))
+#define fdt_magic(fdt) 			(fdt_get_header(fdt, magic))
+#define fdt_totalsize(fdt)		(fdt_get_header(fdt, totalsize))
+#define fdt_off_dt_struct(fdt)		(fdt_get_header(fdt, off_dt_struct))
+#define fdt_off_dt_strings(fdt)		(fdt_get_header(fdt, off_dt_strings))
+#define fdt_off_mem_rsvmap(fdt)		(fdt_get_header(fdt, off_mem_rsvmap))
+#define fdt_version(fdt)		(fdt_get_header(fdt, version))
+#define fdt_last_comp_version(fdt) 	(fdt_get_header(fdt, last_comp_version))
+#define fdt_boot_cpuid_phys(fdt) 	(fdt_get_header(fdt, boot_cpuid_phys))
+#define fdt_size_dt_strings(fdt) 	(fdt_get_header(fdt, size_dt_strings))
+#define fdt_size_dt_struct(fdt)		(fdt_get_header(fdt, size_dt_struct))
+
+#define __fdt_set_hdr(name) \
+	static inline void fdt_set_##name(void *fdt, uint32_t val) \
+	{ \
+		struct fdt_header *fdth = fdt; \
+		fdth->name = cpu_to_fdt32(val); \
+	}
+__fdt_set_hdr(magic);
+__fdt_set_hdr(totalsize);
+__fdt_set_hdr(off_dt_struct);
+__fdt_set_hdr(off_dt_strings);
+__fdt_set_hdr(off_mem_rsvmap);
+__fdt_set_hdr(version);
+__fdt_set_hdr(last_comp_version);
+__fdt_set_hdr(boot_cpuid_phys);
+__fdt_set_hdr(size_dt_strings);
+__fdt_set_hdr(size_dt_struct);
+#undef __fdt_set_hdr
+
+/**
+ * fdt_check_header - sanity check a device tree or possible device tree
+ * @fdt: pointer to data which might be a flattened device tree
+ *
+ * fdt_check_header() checks that the given buffer contains what
+ * appears to be a flattened device tree with sane information in its
+ * header.
+ *
+ * returns:
+ *     0, if the buffer appears to contain a valid device tree
+ *     -FDT_ERR_BADMAGIC,
+ *     -FDT_ERR_BADVERSION,
+ *     -FDT_ERR_BADSTATE, standard meanings, as above
+ */
+int fdt_check_header(const void *fdt);
+
+/**
+ * fdt_move - move a device tree around in memory
+ * @fdt: pointer to the device tree to move
+ * @buf: pointer to memory where the device is to be moved
+ * @bufsize: size of the memory space at buf
+ *
+ * fdt_move() relocates, if possible, the device tree blob located at
+ * fdt to the buffer at buf of size bufsize.  The buffer may overlap
+ * with the existing device tree blob at fdt.  Therefore,
+ *     fdt_move(fdt, fdt, fdt_totalsize(fdt))
+ * should always succeed.
+ *
+ * returns:
+ *     0, on success
+ *     -FDT_ERR_NOSPACE, bufsize is insufficient to contain the device tree
+ *     -FDT_ERR_BADMAGIC,
+ *     -FDT_ERR_BADVERSION,
+ *     -FDT_ERR_BADSTATE, standard meanings
+ */
+int fdt_move(const void *fdt, void *buf, int bufsize);
+
+/**********************************************************************/
+/* Read-only functions                                                */
+/**********************************************************************/
+
+/**
+ * fdt_string - retrieve a string from the strings block of a device tree
+ * @fdt: pointer to the device tree blob
+ * @stroffset: offset of the string within the strings block (native endian)
+ *
+ * fdt_string() retrieves a pointer to a single string from the
+ * strings block of the device tree blob at fdt.
+ *
+ * returns:
+ *     a pointer to the string, on success
+ *     NULL, if stroffset is out of bounds
+ */
+const char *fdt_string(const void *fdt, int stroffset);
+
+/**
+ * fdt_num_mem_rsv - retrieve the number of memory reserve map entries
+ * @fdt: pointer to the device tree blob
+ *
+ * Returns the number of entries in the device tree blob's memory
+ * reservation map.  This does not include the terminating 0,0 entry
+ * or any other (0,0) entries reserved for expansion.
+ *
+ * returns:
+ *     the number of entries
+ */
+int fdt_num_mem_rsv(const void *fdt);
+
+/**
+ * fdt_get_mem_rsv - retrieve one memory reserve map entry
+ * @fdt: pointer to the device tree blob
+ * @address, @size: pointers to 64-bit variables
+ *
+ * On success, *address and *size will contain the address and size of
+ * the n-th reserve map entry from the device tree blob, in
+ * native-endian format.
+ *
+ * returns:
+ *     0, on success
+ *     -FDT_ERR_BADMAGIC,
+ *     -FDT_ERR_BADVERSION,
+ *     -FDT_ERR_BADSTATE, standard meanings
+ */
+int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size);
+
+/**
+ * fdt_subnode_offset_namelen - find a subnode based on substring
+ * @fdt: pointer to the device tree blob
+ * @parentoffset: structure block offset of a node
+ * @name: name of the subnode to locate
+ * @namelen: number of characters of name to consider
+ *
+ * Identical to fdt_subnode_offset(), but only examine the first
+ * namelen characters of name for matching the subnode name.  This is
+ * useful for finding subnodes based on a portion of a larger string,
+ * such as a full path.
+ */
+int fdt_subnode_offset_namelen(const void *fdt, int parentoffset,
+			       const char *name, int namelen);
+/**
+ * fdt_subnode_offset - find a subnode of a given node
+ * @fdt: pointer to the device tree blob
+ * @parentoffset: structure block offset of a node
+ * @name: name of the subnode to locate
+ *
+ * fdt_subnode_offset() finds a subnode of the node at structure block
+ * offset parentoffset with the given name.  name may include a unit
+ * address, in which case fdt_subnode_offset() will find the subnode
+ * with that unit address, or the unit address may be omitted, in
+ * which case fdt_subnode_offset() will find an arbitrary subnode
+ * whose name excluding unit address matches the given name.
+ *
+ * returns:
+ *	structure block offset of the requested subnode (>=0), on success
+ *	-FDT_ERR_NOTFOUND, if the requested subnode does not exist
+ *	-FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE tag
+ *      -FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_TRUNCATED, standard meanings.
+ */
+int fdt_subnode_offset(const void *fdt, int parentoffset, const char *name);
+
+/**
+ * fdt_path_offset - find a tree node by its full path
+ * @fdt: pointer to the device tree blob
+ * @path: full path of the node to locate
+ *
+ * fdt_path_offset() finds a node of a given path in the device tree.
+ * Each path component may omit the unit address portion, but the
+ * results of this are undefined if any such path component is
+ * ambiguous (that is if there are multiple nodes at the relevant
+ * level matching the given component, differentiated only by unit
+ * address).
+ *
+ * returns:
+ *	structure block offset of the node with the requested path (>=0), on success
+ *	-FDT_ERR_BADPATH, given path does not begin with '/' or is invalid
+ *	-FDT_ERR_NOTFOUND, if the requested node does not exist
+ *      -FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_TRUNCATED, standard meanings.
+ */
+int fdt_path_offset(const void *fdt, const char *path);
+
+/**
+ * fdt_get_name - retrieve the name of a given node
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: structure block offset of the starting node
+ * @lenp: pointer to an integer variable (will be overwritten) or NULL
+ *
+ * fdt_get_name() retrieves the name (including unit address) of the
+ * device tree node at structure block offset nodeoffset.  If lenp is
+ * non-NULL, the length of this name is also returned, in the integer
+ * pointed to by lenp.
+ *
+ * returns:
+ *	pointer to the node's name, on success
+ *		If lenp is non-NULL, *lenp contains the length of that name (>=0)
+ *	NULL, on error
+ *		if lenp is non-NULL *lenp contains an error code (<0):
+ *		-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *		-FDT_ERR_BADMAGIC,
+ *		-FDT_ERR_BADVERSION,
+ *		-FDT_ERR_BADSTATE, standard meanings
+ */
+const char *fdt_get_name(const void *fdt, int nodeoffset, int *lenp);
+
+/**
+ * fdt_get_property - find a given property in a given node
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to find
+ * @name: name of the property to find
+ * @lenp: pointer to an integer variable (will be overwritten) or NULL
+ *
+ * fdt_get_property() retrieves a pointer to the fdt_property
+ * structure within the device tree blob corresponding to the property
+ * named 'name' of the node at offset nodeoffset.  If lenp is
+ * non-NULL, the length of the property value is also returned, in the
+ * integer pointed to by lenp.
+ *
+ * returns:
+ *	pointer to the structure representing the property
+ *		if lenp is non-NULL, *lenp contains the length of the property
+ *		value (>=0)
+ *	NULL, on error
+ *		if lenp is non-NULL, *lenp contains an error code (<0):
+ *		-FDT_ERR_NOTFOUND, node does not have named property
+ *		-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *		-FDT_ERR_BADMAGIC,
+ *		-FDT_ERR_BADVERSION,
+ *		-FDT_ERR_BADSTATE,
+ *		-FDT_ERR_BADSTRUCTURE,
+ *		-FDT_ERR_TRUNCATED, standard meanings
+ */
+const struct fdt_property *fdt_get_property(const void *fdt, int nodeoffset,
+					    const char *name, int *lenp);
+static inline struct fdt_property *fdt_get_property_w(void *fdt, int nodeoffset,
+						      const char *name,
+						      int *lenp)
+{
+	return (struct fdt_property *)(uintptr_t)
+		fdt_get_property(fdt, nodeoffset, name, lenp);
+}
+
+/**
+ * fdt_getprop - retrieve the value of a given property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to find
+ * @name: name of the property to find
+ * @lenp: pointer to an integer variable (will be overwritten) or NULL
+ *
+ * fdt_getprop() retrieves a pointer to the value of the property
+ * named 'name' of the node at offset nodeoffset (this will be a
+ * pointer to within the device blob itself, not a copy of the value).
+ * If lenp is non-NULL, the length of the property value is also
+ * returned, in the integer pointed to by lenp.
+ *
+ * returns:
+ *	pointer to the property's value
+ *		if lenp is non-NULL, *lenp contains the length of the property
+ *		value (>=0)
+ *	NULL, on error
+ *		if lenp is non-NULL, *lenp contains an error code (<0):
+ *		-FDT_ERR_NOTFOUND, node does not have named property
+ *		-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *		-FDT_ERR_BADMAGIC,
+ *		-FDT_ERR_BADVERSION,
+ *		-FDT_ERR_BADSTATE,
+ *		-FDT_ERR_BADSTRUCTURE,
+ *		-FDT_ERR_TRUNCATED, standard meanings
+ */
+const void *fdt_getprop(const void *fdt, int nodeoffset,
+			const char *name, int *lenp);
+static inline void *fdt_getprop_w(void *fdt, int nodeoffset,
+				  const char *name, int *lenp)
+{
+	return (void *)(uintptr_t)fdt_getprop(fdt, nodeoffset, name, lenp);
+}
+
+/**
+ * fdt_get_phandle - retrieve the phandle of a given node
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: structure block offset of the node
+ *
+ * fdt_get_phandle() retrieves the phandle of the device tree node at
+ * structure block offset nodeoffset.
+ *
+ * returns:
+ *	the phandle of the node at nodeoffset, on success (!= 0, != -1)
+ *	0, if the node has no phandle, or another error occurs
+ */
+uint32_t fdt_get_phandle(const void *fdt, int nodeoffset);
+
+/**
+ * fdt_get_path - determine the full path of a node
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose path to find
+ * @buf: character buffer to contain the returned path (will be overwritten)
+ * @buflen: size of the character buffer at buf
+ *
+ * fdt_get_path() computes the full path of the node at offset
+ * nodeoffset, and records that path in the buffer at buf.
+ *
+ * NOTE: This function is expensive, as it must scan the device tree
+ * structure from the start to nodeoffset.
+ *
+ * returns:
+ *	0, on success
+ *		buf contains the absolute path of the node at
+ *		nodeoffset, as a NUL-terminated string.
+ * 	-FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
+ *	-FDT_ERR_NOSPACE, the path of the given node is longer than (bufsize-1)
+ *		characters and will not fit in the given buffer.
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE, standard meanings
+ */
+int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen);
+
+/**
+ * fdt_supernode_atdepth_offset - find a specific ancestor of a node
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose parent to find
+ * @supernodedepth: depth of the ancestor to find
+ * @nodedepth: pointer to an integer variable (will be overwritten) or NULL
+ *
+ * fdt_supernode_atdepth_offset() finds an ancestor of the given node
+ * at a specific depth from the root (where the root itself has depth
+ * 0, its immediate subnodes depth 1 and so forth).  So
+ *	fdt_supernode_atdepth_offset(fdt, nodeoffset, 0, NULL);
+ * will always return 0, the offset of the root node.  If the node at
+ * nodeoffset has depth D, then:
+ *	fdt_supernode_atdepth_offset(fdt, nodeoffset, D, NULL);
+ * will return nodeoffset itself.
+ *
+ * NOTE: This function is expensive, as it must scan the device tree
+ * structure from the start to nodeoffset.
+ *
+ * returns:
+
+ *	structure block offset of the node at node offset's ancestor
+ *		of depth supernodedepth (>=0), on success
+ * 	-FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
+*	-FDT_ERR_NOTFOUND, supernodedepth was greater than the depth of nodeoffset
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE, standard meanings
+ */
+int fdt_supernode_atdepth_offset(const void *fdt, int nodeoffset,
+				 int supernodedepth, int *nodedepth);
+
+/**
+ * fdt_node_depth - find the depth of a given node
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose parent to find
+ *
+ * fdt_node_depth() finds the depth of a given node.  The root node
+ * has depth 0, its immediate subnodes depth 1 and so forth.
+ *
+ * NOTE: This function is expensive, as it must scan the device tree
+ * structure from the start to nodeoffset.
+ *
+ * returns:
+ *	depth of the node at nodeoffset (>=0), on success
+ * 	-FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE, standard meanings
+ */
+int fdt_node_depth(const void *fdt, int nodeoffset);
+
+/**
+ * fdt_parent_offset - find the parent of a given node
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose parent to find
+ *
+ * fdt_parent_offset() locates the parent node of a given node (that
+ * is, it finds the offset of the node which contains the node at
+ * nodeoffset as a subnode).
+ *
+ * NOTE: This function is expensive, as it must scan the device tree
+ * structure from the start to nodeoffset, *twice*.
+ *
+ * returns:
+ *	structure block offset of the parent of the node at nodeoffset
+ *		(>=0), on success
+ * 	-FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE, standard meanings
+ */
+int fdt_parent_offset(const void *fdt, int nodeoffset);
+
+/**
+ * fdt_node_offset_by_prop_value - find nodes with a given property value
+ * @fdt: pointer to the device tree blob
+ * @startoffset: only find nodes after this offset
+ * @propname: property name to check
+ * @propval: property value to search for
+ * @proplen: length of the value in propval
+ *
+ * fdt_node_offset_by_prop_value() returns the offset of the first
+ * node after startoffset, which has a property named propname whose
+ * value is of length proplen and has value equal to propval; or if
+ * startoffset is -1, the very first such node in the tree.
+ *
+ * To iterate through all nodes matching the criterion, the following
+ * idiom can be used:
+ *	offset = fdt_node_offset_by_prop_value(fdt, -1, propname,
+ *					       propval, proplen);
+ *	while (offset != -FDT_ERR_NOTFOUND) {
+ *		// other code here
+ *		offset = fdt_node_offset_by_prop_value(fdt, offset, propname,
+ *						       propval, proplen);
+ *	}
+ *
+ * Note the -1 in the first call to the function, if 0 is used here
+ * instead, the function will never locate the root node, even if it
+ * matches the criterion.
+ *
+ * returns:
+ *	structure block offset of the located node (>= 0, >startoffset),
+ *		 on success
+ *	-FDT_ERR_NOTFOUND, no node matching the criterion exists in the
+ *		tree after startoffset
+ * 	-FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE, standard meanings
+ */
+int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
+				  const char *propname,
+				  const void *propval, int proplen);
+
+/**
+ * fdt_node_offset_by_phandle - find the node with a given phandle
+ * @fdt: pointer to the device tree blob
+ * @phandle: phandle value
+ *
+ * fdt_node_offset_by_phandle() returns the offset of the node
+ * which has the given phandle value.  If there is more than one node
+ * in the tree with the given phandle (an invalid tree), results are
+ * undefined.
+ *
+ * returns:
+ *	structure block offset of the located node (>= 0), on success
+ *	-FDT_ERR_NOTFOUND, no node with that phandle exists
+ *	-FDT_ERR_BADPHANDLE, given phandle value was invalid (0 or -1)
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE, standard meanings
+ */
+int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle);
+
+/**
+ * fdt_node_check_compatible: check a node's compatible property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of a tree node
+ * @compatible: string to match against
+ *
+ *
+ * fdt_node_check_compatible() returns 0 if the given node contains a
+ * 'compatible' property with the given string as one of its elements,
+ * it returns non-zero otherwise, or on error.
+ *
+ * returns:
+ *	0, if the node has a 'compatible' property listing the given string
+ *	1, if the node has a 'compatible' property, but it does not list
+ *		the given string
+ *	-FDT_ERR_NOTFOUND, if the given node has no 'compatible' property
+ * 	-FDT_ERR_BADOFFSET, if nodeoffset does not refer to a BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE, standard meanings
+ */
+int fdt_node_check_compatible(const void *fdt, int nodeoffset,
+			      const char *compatible);
+
+/**
+ * fdt_node_offset_by_compatible - find nodes with a given 'compatible' value
+ * @fdt: pointer to the device tree blob
+ * @startoffset: only find nodes after this offset
+ * @compatible: 'compatible' string to match against
+ *
+ * fdt_node_offset_by_compatible() returns the offset of the first
+ * node after startoffset, which has a 'compatible' property which
+ * lists the given compatible string; or if startoffset is -1, the
+ * very first such node in the tree.
+ *
+ * To iterate through all nodes matching the criterion, the following
+ * idiom can be used:
+ *	offset = fdt_node_offset_by_compatible(fdt, -1, compatible);
+ *	while (offset != -FDT_ERR_NOTFOUND) {
+ *		// other code here
+ *		offset = fdt_node_offset_by_compatible(fdt, offset, compatible);
+ *	}
+ *
+ * Note the -1 in the first call to the function, if 0 is used here
+ * instead, the function will never locate the root node, even if it
+ * matches the criterion.
+ *
+ * returns:
+ *	structure block offset of the located node (>= 0, >startoffset),
+ *		 on success
+ *	-FDT_ERR_NOTFOUND, no node matching the criterion exists in the
+ *		tree after startoffset
+ * 	-FDT_ERR_BADOFFSET, nodeoffset does not refer to a BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE, standard meanings
+ */
+int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
+				  const char *compatible);
+
+/**********************************************************************/
+/* Write-in-place functions                                           */
+/**********************************************************************/
+
+/**
+ * fdt_setprop_inplace - change a property's value, but not its size
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @val: pointer to data to replace the property value with
+ * @len: length of the property value
+ *
+ * fdt_setprop_inplace() replaces the value of a given property with
+ * the data in val, of length len.  This function cannot change the
+ * size of a property, and so will only work if len is equal to the
+ * current length of the property.
+ *
+ * This function will alter only the bytes in the blob which contain
+ * the given property value, and will not alter or move any other part
+ * of the tree.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOSPACE, if len is not equal to the property's current length
+ *	-FDT_ERR_NOTFOUND, node does not have the named property
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
+			const void *val, int len);
+
+/**
+ * fdt_setprop_inplace_cell - change the value of a single-cell property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @val: cell (32-bit integer) value to replace the property with
+ *
+ * fdt_setprop_inplace_cell() replaces the value of a given property
+ * with the 32-bit integer cell value in val, converting val to
+ * big-endian if necessary.  This function cannot change the size of a
+ * property, and so will only work if the property already exists and
+ * has length 4.
+ *
+ * This function will alter only the bytes in the blob which contain
+ * the given property value, and will not alter or move any other part
+ * of the tree.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOSPACE, if the property's length is not equal to 4
+  *	-FDT_ERR_NOTFOUND, node does not have the named property
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+static inline int fdt_setprop_inplace_cell(void *fdt, int nodeoffset,
+					   const char *name, uint32_t val)
+{
+	val = cpu_to_fdt32(val);
+	return fdt_setprop_inplace(fdt, nodeoffset, name, &val, sizeof(val));
+}
+
+/**
+ * fdt_nop_property - replace a property with nop tags
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to nop
+ * @name: name of the property to nop
+ *
+ * fdt_nop_property() will replace a given property's representation
+ * in the blob with FDT_NOP tags, effectively removing it from the
+ * tree.
+ *
+ * This function will alter only the bytes in the blob which contain
+ * the property, and will not alter or move any other part of the
+ * tree.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOTFOUND, node does not have the named property
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_nop_property(void *fdt, int nodeoffset, const char *name);
+
+/**
+ * fdt_nop_node - replace a node (subtree) with nop tags
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node to nop
+ *
+ * fdt_nop_node() will replace a given node's representation in the
+ * blob, including all its subnodes, if any, with FDT_NOP tags,
+ * effectively removing it from the tree.
+ *
+ * This function will alter only the bytes in the blob which contain
+ * the node and its properties and subnodes, and will not alter or
+ * move any other part of the tree.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_nop_node(void *fdt, int nodeoffset);
+
+/**********************************************************************/
+/* Sequential write functions                                         */
+/**********************************************************************/
+
+int fdt_create(void *buf, int bufsize);
+int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size);
+int fdt_finish_reservemap(void *fdt);
+int fdt_begin_node(void *fdt, const char *name);
+int fdt_property(void *fdt, const char *name, const void *val, int len);
+static inline int fdt_property_cell(void *fdt, const char *name, uint32_t val)
+{
+	val = cpu_to_fdt32(val);
+	return fdt_property(fdt, name, &val, sizeof(val));
+}
+#define fdt_property_string(fdt, name, str) \
+	fdt_property(fdt, name, str, strlen(str)+1)
+int fdt_end_node(void *fdt);
+int fdt_finish(void *fdt);
+
+/**********************************************************************/
+/* Read-write functions                                               */
+/**********************************************************************/
+
+int fdt_open_into(const void *fdt, void *buf, int bufsize);
+int fdt_pack(void *fdt);
+
+/**
+ * fdt_add_mem_rsv - add one memory reserve map entry
+ * @fdt: pointer to the device tree blob
+ * @address, @size: 64-bit values (native endian)
+ *
+ * Adds a reserve map entry to the given blob reserving a region at
+ * address address of length size.
+ *
+ * This function will insert data into the reserve map and will
+ * therefore change the indexes of some entries in the table.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ *		contain the new reservation entry
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size);
+
+/**
+ * fdt_del_mem_rsv - remove a memory reserve map entry
+ * @fdt: pointer to the device tree blob
+ * @n: entry to remove
+ *
+ * fdt_del_mem_rsv() removes the n-th memory reserve map entry from
+ * the blob.
+ *
+ * This function will delete data from the reservation table and will
+ * therefore change the indexes of some entries in the table.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOTFOUND, there is no entry of the given index (i.e. there
+ *		are less than n+1 reserve map entries)
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_del_mem_rsv(void *fdt, int n);
+
+/**
+ * fdt_set_name - change the name of a given node
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: structure block offset of a node
+ * @name: name to give the node
+ *
+ * fdt_set_name() replaces the name (including unit address, if any)
+ * of the given node with the given string.  NOTE: this function can't
+ * efficiently check if the new name is unique amongst the given
+ * node's siblings; results are undefined if this function is invoked
+ * with a name equal to one of the given node's siblings.
+ *
+ * This function may insert or delete data from the blob, and will
+ * therefore change the offsets of some existing nodes.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOSPACE, there is insufficient free space in the blob
+ *		to contain the new name
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE, standard meanings
+ */
+int fdt_set_name(void *fdt, int nodeoffset, const char *name);
+
+/**
+ * fdt_setprop - create or change a property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @val: pointer to data to set the property value to
+ * @len: length of the property value
+ *
+ * fdt_setprop() sets the value of the named property in the given
+ * node to the given value and length, creating the property if it
+ * does not already exist.
+ *
+ * This function may insert or delete data from the blob, and will
+ * therefore change the offsets of some existing nodes.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ *		contain the new property value
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_setprop(void *fdt, int nodeoffset, const char *name,
+		const void *val, int len);
+
+/**
+ * fdt_setprop_cell - set a property to a single cell value
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @val: 32-bit integer value for the property (native endian)
+ *
+ * fdt_setprop_cell() sets the value of the named property in the
+ * given node to the given cell value (converting to big-endian if
+ * necessary), or creates a new property with that value if it does
+ * not already exist.
+ *
+ * This function may insert or delete data from the blob, and will
+ * therefore change the offsets of some existing nodes.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ *		contain the new property value
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name,
+				   uint32_t val)
+{
+	val = cpu_to_fdt32(val);
+	return fdt_setprop(fdt, nodeoffset, name, &val, sizeof(val));
+}
+
+/**
+ * fdt_setprop_string - set a property to a string value
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to change
+ * @name: name of the property to change
+ * @str: string value for the property
+ *
+ * fdt_setprop_string() sets the value of the named property in the
+ * given node to the given string value (using the length of the
+ * string to determine the new length of the property), or creates a
+ * new property with that value if it does not already exist.
+ *
+ * This function may insert or delete data from the blob, and will
+ * therefore change the offsets of some existing nodes.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOSPACE, there is insufficient free space in the blob to
+ *		contain the new property value
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+#define fdt_setprop_string(fdt, nodeoffset, name, str) \
+	fdt_setprop((fdt), (nodeoffset), (name), (str), strlen(str)+1)
+
+/**
+ * fdt_delprop - delete a property
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node whose property to nop
+ * @name: name of the property to nop
+ *
+ * fdt_del_property() will delete the given property.
+ *
+ * This function will delete data from the blob, and will therefore
+ * change the offsets of some existing nodes.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_NOTFOUND, node does not have the named property
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_delprop(void *fdt, int nodeoffset, const char *name);
+
+/**
+ * fdt_add_subnode_namelen - creates a new node based on substring
+ * @fdt: pointer to the device tree blob
+ * @parentoffset: structure block offset of a node
+ * @name: name of the subnode to locate
+ * @namelen: number of characters of name to consider
+ *
+ * Identical to fdt_add_subnode(), but use only the first namelen
+ * characters of name as the name of the new node.  This is useful for
+ * creating subnodes based on a portion of a larger string, such as a
+ * full path.
+ */
+int fdt_add_subnode_namelen(void *fdt, int parentoffset,
+			    const char *name, int namelen);
+
+/**
+ * fdt_add_subnode - creates a new node
+ * @fdt: pointer to the device tree blob
+ * @parentoffset: structure block offset of a node
+ * @name: name of the subnode to locate
+ *
+ * fdt_add_subnode() creates a new node as a subnode of the node at
+ * structure block offset parentoffset, with the given name (which
+ * should include the unit address, if any).
+ *
+ * This function will insert data into the blob, and will therefore
+ * change the offsets of some existing nodes.
+
+ * returns:
+ *	structure block offset of the created nodeequested subnode (>=0), on success
+ *	-FDT_ERR_NOTFOUND, if the requested subnode does not exist
+ *	-FDT_ERR_BADOFFSET, if parentoffset did not point to an FDT_BEGIN_NODE tag
+ *	-FDT_ERR_EXISTS, if the node at parentoffset already has a subnode of
+ *		the given name
+ *	-FDT_ERR_NOSPACE, if there is insufficient free space in the
+ *		blob to contain the new node
+ *	-FDT_ERR_NOSPACE
+ *	-FDT_ERR_BADLAYOUT
+ *      -FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_TRUNCATED, standard meanings.
+ */
+int fdt_add_subnode(void *fdt, int parentoffset, const char *name);
+
+/**
+ * fdt_del_node - delete a node (subtree)
+ * @fdt: pointer to the device tree blob
+ * @nodeoffset: offset of the node to nop
+ *
+ * fdt_del_node() will remove the given node, including all its
+ * subnodes if any, from the blob.
+ *
+ * This function will delete data from the blob, and will therefore
+ * change the offsets of some existing nodes.
+ *
+ * returns:
+ *	0, on success
+ *	-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag
+ *	-FDT_ERR_BADLAYOUT,
+ *	-FDT_ERR_BADMAGIC,
+ *	-FDT_ERR_BADVERSION,
+ *	-FDT_ERR_BADSTATE,
+ *	-FDT_ERR_BADSTRUCTURE,
+ *	-FDT_ERR_TRUNCATED, standard meanings
+ */
+int fdt_del_node(void *fdt, int nodeoffset);
+
+/**********************************************************************/
+/* Debugging / informational functions                                */
+/**********************************************************************/
+
+const char *fdt_strerror(int errval);
+
+#endif /* _LIBFDT_H */
diff --git a/scripts/dtc/libfdt/libfdt_env.h b/scripts/dtc/libfdt/libfdt_env.h
new file mode 100644
index 00000000000..449bf602daf
--- /dev/null
+++ b/scripts/dtc/libfdt/libfdt_env.h
@@ -0,0 +1,23 @@
+#ifndef _LIBFDT_ENV_H
+#define _LIBFDT_ENV_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#define _B(n)	((unsigned long long)((uint8_t *)&x)[n])
+static inline uint32_t fdt32_to_cpu(uint32_t x)
+{
+	return (_B(0) << 24) | (_B(1) << 16) | (_B(2) << 8) | _B(3);
+}
+#define cpu_to_fdt32(x) fdt32_to_cpu(x)
+
+static inline uint64_t fdt64_to_cpu(uint64_t x)
+{
+	return (_B(0) << 56) | (_B(1) << 48) | (_B(2) << 40) | (_B(3) << 32)
+		| (_B(4) << 24) | (_B(5) << 16) | (_B(6) << 8) | _B(7);
+}
+#define cpu_to_fdt64(x) fdt64_to_cpu(x)
+#undef _B
+
+#endif /* _LIBFDT_ENV_H */
diff --git a/scripts/dtc/libfdt/libfdt_internal.h b/scripts/dtc/libfdt/libfdt_internal.h
new file mode 100644
index 00000000000..46eb93e4af5
--- /dev/null
+++ b/scripts/dtc/libfdt/libfdt_internal.h
@@ -0,0 +1,95 @@
+#ifndef _LIBFDT_INTERNAL_H
+#define _LIBFDT_INTERNAL_H
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * libfdt is dual licensed: you can use it either under the terms of
+ * the GPL, or the BSD license, at your option.
+ *
+ *  a) This library is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This library is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public
+ *     License along with this library; if not, write to the Free
+ *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ *     MA 02110-1301 USA
+ *
+ * Alternatively,
+ *
+ *  b) Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *     1. Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *     2. Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <fdt.h>
+
+#define FDT_ALIGN(x, a)		(((x) + (a) - 1) & ~((a) - 1))
+#define FDT_TAGALIGN(x)		(FDT_ALIGN((x), FDT_TAGSIZE))
+
+#define FDT_CHECK_HEADER(fdt) \
+	{ \
+		int err; \
+		if ((err = fdt_check_header(fdt)) != 0) \
+			return err; \
+	}
+
+uint32_t _fdt_next_tag(const void *fdt, int startoffset, int *nextoffset);
+int _fdt_check_node_offset(const void *fdt, int offset);
+const char *_fdt_find_string(const char *strtab, int tabsize, const char *s);
+int _fdt_node_end_offset(void *fdt, int nodeoffset);
+
+static inline const void *_fdt_offset_ptr(const void *fdt, int offset)
+{
+	return (const char *)fdt + fdt_off_dt_struct(fdt) + offset;
+}
+
+static inline void *_fdt_offset_ptr_w(void *fdt, int offset)
+{
+	return (void *)(uintptr_t)_fdt_offset_ptr(fdt, offset);
+}
+
+static inline const struct fdt_reserve_entry *_fdt_mem_rsv(const void *fdt, int n)
+{
+	const struct fdt_reserve_entry *rsv_table =
+		(const struct fdt_reserve_entry *)
+		((const char *)fdt + fdt_off_mem_rsvmap(fdt));
+
+	return rsv_table + n;
+}
+static inline struct fdt_reserve_entry *_fdt_mem_rsv_w(void *fdt, int n)
+{
+	return (void *)(uintptr_t)_fdt_mem_rsv(fdt, n);
+}
+
+#define FDT_SW_MAGIC		(~FDT_MAGIC)
+
+#endif /* _LIBFDT_INTERNAL_H */
diff --git a/scripts/dtc/livetree.c b/scripts/dtc/livetree.c
new file mode 100644
index 00000000000..0ca3de550b3
--- /dev/null
+++ b/scripts/dtc/livetree.c
@@ -0,0 +1,308 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+#include "dtc.h"
+
+/*
+ * Tree building functions
+ */
+
+struct property *build_property(char *name, struct data val, char *label)
+{
+	struct property *new = xmalloc(sizeof(*new));
+
+	new->name = name;
+	new->val = val;
+
+	new->next = NULL;
+
+	new->label = label;
+
+	return new;
+}
+
+struct property *chain_property(struct property *first, struct property *list)
+{
+	assert(first->next == NULL);
+
+	first->next = list;
+	return first;
+}
+
+struct property *reverse_properties(struct property *first)
+{
+	struct property *p = first;
+	struct property *head = NULL;
+	struct property *next;
+
+	while (p) {
+		next = p->next;
+		p->next = head;
+		head = p;
+		p = next;
+	}
+	return head;
+}
+
+struct node *build_node(struct property *proplist, struct node *children)
+{
+	struct node *new = xmalloc(sizeof(*new));
+	struct node *child;
+
+	memset(new, 0, sizeof(*new));
+
+	new->proplist = reverse_properties(proplist);
+	new->children = children;
+
+	for_each_child(new, child) {
+		child->parent = new;
+	}
+
+	return new;
+}
+
+struct node *name_node(struct node *node, char *name, char * label)
+{
+	assert(node->name == NULL);
+
+	node->name = name;
+
+	node->label = label;
+
+	return node;
+}
+
+struct node *chain_node(struct node *first, struct node *list)
+{
+	assert(first->next_sibling == NULL);
+
+	first->next_sibling = list;
+	return first;
+}
+
+void add_property(struct node *node, struct property *prop)
+{
+	struct property **p;
+
+	prop->next = NULL;
+
+	p = &node->proplist;
+	while (*p)
+		p = &((*p)->next);
+
+	*p = prop;
+}
+
+void add_child(struct node *parent, struct node *child)
+{
+	struct node **p;
+
+	child->next_sibling = NULL;
+	child->parent = parent;
+
+	p = &parent->children;
+	while (*p)
+		p = &((*p)->next_sibling);
+
+	*p = child;
+}
+
+struct reserve_info *build_reserve_entry(uint64_t address, uint64_t size,
+					 char *label)
+{
+	struct reserve_info *new = xmalloc(sizeof(*new));
+
+	new->re.address = address;
+	new->re.size = size;
+
+	new->next = NULL;
+
+	new->label = label;
+
+	return new;
+}
+
+struct reserve_info *chain_reserve_entry(struct reserve_info *first,
+					struct reserve_info *list)
+{
+	assert(first->next == NULL);
+
+	first->next = list;
+	return first;
+}
+
+struct reserve_info *add_reserve_entry(struct reserve_info *list,
+				      struct reserve_info *new)
+{
+	struct reserve_info *last;
+
+	new->next = NULL;
+
+	if (! list)
+		return new;
+
+	for (last = list; last->next; last = last->next)
+		;
+
+	last->next = new;
+
+	return list;
+}
+
+struct boot_info *build_boot_info(struct reserve_info *reservelist,
+				  struct node *tree, uint32_t boot_cpuid_phys)
+{
+	struct boot_info *bi;
+
+	bi = xmalloc(sizeof(*bi));
+	bi->reservelist = reservelist;
+	bi->dt = tree;
+	bi->boot_cpuid_phys = boot_cpuid_phys;
+
+	return bi;
+}
+
+/*
+ * Tree accessor functions
+ */
+
+const char *get_unitname(struct node *node)
+{
+	if (node->name[node->basenamelen] == '\0')
+		return "";
+	else
+		return node->name + node->basenamelen + 1;
+}
+
+struct property *get_property(struct node *node, const char *propname)
+{
+	struct property *prop;
+
+	for_each_property(node, prop)
+		if (streq(prop->name, propname))
+			return prop;
+
+	return NULL;
+}
+
+cell_t propval_cell(struct property *prop)
+{
+	assert(prop->val.len == sizeof(cell_t));
+	return fdt32_to_cpu(*((cell_t *)prop->val.val));
+}
+
+struct node *get_subnode(struct node *node, const char *nodename)
+{
+	struct node *child;
+
+	for_each_child(node, child)
+		if (streq(child->name, nodename))
+			return child;
+
+	return NULL;
+}
+
+struct node *get_node_by_path(struct node *tree, const char *path)
+{
+	const char *p;
+	struct node *child;
+
+	if (!path || ! (*path))
+		return tree;
+
+	while (path[0] == '/')
+		path++;
+
+	p = strchr(path, '/');
+
+	for_each_child(tree, child) {
+		if (p && strneq(path, child->name, p-path))
+			return get_node_by_path(child, p+1);
+		else if (!p && streq(path, child->name))
+			return child;
+	}
+
+	return NULL;
+}
+
+struct node *get_node_by_label(struct node *tree, const char *label)
+{
+	struct node *child, *node;
+
+	assert(label && (strlen(label) > 0));
+
+	if (tree->label && streq(tree->label, label))
+		return tree;
+
+	for_each_child(tree, child) {
+		node = get_node_by_label(child, label);
+		if (node)
+			return node;
+	}
+
+	return NULL;
+}
+
+struct node *get_node_by_phandle(struct node *tree, cell_t phandle)
+{
+	struct node *child, *node;
+
+	assert((phandle != 0) && (phandle != -1));
+
+	if (tree->phandle == phandle)
+		return tree;
+
+	for_each_child(tree, child) {
+		node = get_node_by_phandle(child, phandle);
+		if (node)
+			return node;
+	}
+
+	return NULL;
+}
+
+struct node *get_node_by_ref(struct node *tree, const char *ref)
+{
+	if (ref[0] == '/')
+		return get_node_by_path(tree, ref);
+	else
+		return get_node_by_label(tree, ref);
+}
+
+cell_t get_node_phandle(struct node *root, struct node *node)
+{
+	static cell_t phandle = 1; /* FIXME: ick, static local */
+
+	if ((node->phandle != 0) && (node->phandle != -1))
+		return node->phandle;
+
+	assert(! get_property(node, "linux,phandle"));
+
+	while (get_node_by_phandle(root, phandle))
+		phandle++;
+
+	node->phandle = phandle;
+	add_property(node,
+		     build_property("linux,phandle",
+				    data_append_cell(empty_data, phandle),
+				    NULL));
+
+	return node->phandle;
+}
diff --git a/scripts/dtc/srcpos.c b/scripts/dtc/srcpos.c
new file mode 100644
index 00000000000..9641b7628b4
--- /dev/null
+++ b/scripts/dtc/srcpos.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+#include "dtc.h"
+#include "srcpos.h"
+
+/*
+ * Like yylineno, this is the current open file pos.
+ */
+
+struct dtc_file *srcpos_file;
+
+static int dtc_open_one(struct dtc_file *file,
+                        const char *search,
+                        const char *fname)
+{
+	char *fullname;
+
+	if (search) {
+		fullname = xmalloc(strlen(search) + strlen(fname) + 2);
+
+		strcpy(fullname, search);
+		strcat(fullname, "/");
+		strcat(fullname, fname);
+	} else {
+		fullname = strdup(fname);
+	}
+
+	file->file = fopen(fullname, "r");
+	if (!file->file) {
+		free(fullname);
+		return 0;
+	}
+
+	file->name = fullname;
+	return 1;
+}
+
+
+struct dtc_file *dtc_open_file(const char *fname,
+                               const struct search_path *search)
+{
+	static const struct search_path default_search = { NULL, NULL, NULL };
+
+	struct dtc_file *file;
+	const char *slash;
+
+	file = xmalloc(sizeof(struct dtc_file));
+
+	slash = strrchr(fname, '/');
+	if (slash) {
+		char *dir = xmalloc(slash - fname + 1);
+
+		memcpy(dir, fname, slash - fname);
+		dir[slash - fname] = 0;
+		file->dir = dir;
+	} else {
+		file->dir = NULL;
+	}
+
+	if (streq(fname, "-")) {
+		file->name = "stdin";
+		file->file = stdin;
+		return file;
+	}
+
+	if (fname[0] == '/') {
+		file->file = fopen(fname, "r");
+		if (!file->file)
+			goto fail;
+
+		file->name = strdup(fname);
+		return file;
+	}
+
+	if (!search)
+		search = &default_search;
+
+	while (search) {
+		if (dtc_open_one(file, search->dir, fname))
+			return file;
+
+		if (errno != ENOENT)
+			goto fail;
+
+		search = search->next;
+	}
+
+fail:
+	die("Couldn't open \"%s\": %s\n", fname, strerror(errno));
+}
+
+void dtc_close_file(struct dtc_file *file)
+{
+	if (fclose(file->file))
+		die("Error closing \"%s\": %s\n", file->name, strerror(errno));
+
+	free(file->dir);
+	free(file);
+}
diff --git a/scripts/dtc/srcpos.h b/scripts/dtc/srcpos.h
new file mode 100644
index 00000000000..e17c7c04db8
--- /dev/null
+++ b/scripts/dtc/srcpos.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+/*
+ * Augment the standard YYLTYPE with a filenum index into an
+ * array of all opened filenames.
+ */
+
+#include <stdio.h>
+
+struct dtc_file {
+	char *dir;
+	const char *name;
+	FILE *file;
+};
+
+#if ! defined(YYLTYPE) && ! defined(YYLTYPE_IS_DECLARED)
+typedef struct YYLTYPE {
+    int first_line;
+    int first_column;
+    int last_line;
+    int last_column;
+    struct dtc_file *file;
+} YYLTYPE;
+
+#define YYLTYPE_IS_DECLARED	1
+#define YYLTYPE_IS_TRIVIAL	1
+#endif
+
+/* Cater to old parser templates. */
+#ifndef YYID
+#define YYID(n)	(n)
+#endif
+
+#define YYLLOC_DEFAULT(Current, Rhs, N)					\
+    do									\
+      if (YYID (N))							\
+	{								\
+	  (Current).first_line   = YYRHSLOC (Rhs, 1).first_line;	\
+	  (Current).first_column = YYRHSLOC (Rhs, 1).first_column;	\
+	  (Current).last_line    = YYRHSLOC (Rhs, N).last_line;		\
+	  (Current).last_column  = YYRHSLOC (Rhs, N).last_column;	\
+	  (Current).file         = YYRHSLOC (Rhs, N).file;		\
+	}								\
+      else								\
+	{								\
+	  (Current).first_line   = (Current).last_line   =		\
+	    YYRHSLOC (Rhs, 0).last_line;				\
+	  (Current).first_column = (Current).last_column =		\
+	    YYRHSLOC (Rhs, 0).last_column;				\
+	  (Current).file         = YYRHSLOC (Rhs, 0).file;		\
+	}								\
+    while (YYID (0))
+
+
+
+extern void yyerror(char const *);
+extern void yyerrorf(char const *, ...) __attribute__((format(printf, 1, 2)));
+
+extern struct dtc_file *srcpos_file;
+
+struct search_path {
+	const char *dir; /* NULL for current directory */
+	struct search_path *prev, *next;
+};
+
+extern struct dtc_file *dtc_open_file(const char *fname,
+                                      const struct search_path *search);
+extern void dtc_close_file(struct dtc_file *file);
diff --git a/scripts/dtc/treesource.c b/scripts/dtc/treesource.c
new file mode 100644
index 00000000000..ebeb6eb2790
--- /dev/null
+++ b/scripts/dtc/treesource.c
@@ -0,0 +1,278 @@
+/*
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2005.
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ *                                                                   USA
+ */
+
+#include "dtc.h"
+#include "srcpos.h"
+
+extern FILE *yyin;
+extern int yyparse(void);
+
+struct boot_info *the_boot_info;
+int treesource_error;
+
+struct boot_info *dt_from_source(const char *fname)
+{
+	the_boot_info = NULL;
+	treesource_error = 0;
+
+	srcpos_file = dtc_open_file(fname, NULL);
+	yyin = srcpos_file->file;
+
+	if (yyparse() != 0)
+		die("Unable to parse input tree\n");
+
+	if (treesource_error)
+		die("Syntax error parsing input tree\n");
+
+	return the_boot_info;
+}
+
+static void write_prefix(FILE *f, int level)
+{
+	int i;
+
+	for (i = 0; i < level; i++)
+		fputc('\t', f);
+}
+
+int isstring(char c)
+{
+	return (isprint(c)
+		|| (c == '\0')
+		|| strchr("\a\b\t\n\v\f\r", c));
+}
+
+static void write_propval_string(FILE *f, struct data val)
+{
+	const char *str = val.val;
+	int i;
+	int newchunk = 1;
+	struct marker *m = val.markers;
+
+	assert(str[val.len-1] == '\0');
+
+	for (i = 0; i < (val.len-1); i++) {
+		char c = str[i];
+
+		if (newchunk) {
+			while (m && (m->offset <= i)) {
+				if (m->type == LABEL) {
+					assert(m->offset == i);
+					fprintf(f, "%s: ", m->ref);
+				}
+				m = m->next;
+			}
+			fprintf(f, "\"");
+			newchunk = 0;
+		}
+
+		switch (c) {
+		case '\a':
+			fprintf(f, "\\a");
+			break;
+		case '\b':
+			fprintf(f, "\\b");
+			break;
+		case '\t':
+			fprintf(f, "\\t");
+			break;
+		case '\n':
+			fprintf(f, "\\n");
+			break;
+		case '\v':
+			fprintf(f, "\\v");
+			break;
+		case '\f':
+			fprintf(f, "\\f");
+			break;
+		case '\r':
+			fprintf(f, "\\r");
+			break;
+		case '\\':
+			fprintf(f, "\\\\");
+			break;
+		case '\"':
+			fprintf(f, "\\\"");
+			break;
+		case '\0':
+			fprintf(f, "\", ");
+			newchunk = 1;
+			break;
+		default:
+			if (isprint(c))
+				fprintf(f, "%c", c);
+			else
+				fprintf(f, "\\x%02hhx", c);
+		}
+	}
+	fprintf(f, "\"");
+
+	/* Wrap up any labels at the end of the value */
+	for_each_marker_of_type(m, LABEL) {
+		assert (m->offset == val.len);
+		fprintf(f, " %s:", m->ref);
+	}
+}
+
+static void write_propval_cells(FILE *f, struct data val)
+{
+	void *propend = val.val + val.len;
+	cell_t *cp = (cell_t *)val.val;
+	struct marker *m = val.markers;
+
+	fprintf(f, "<");
+	for (;;) {
+		while (m && (m->offset <= ((char *)cp - val.val))) {
+			if (m->type == LABEL) {
+				assert(m->offset == ((char *)cp - val.val));
+				fprintf(f, "%s: ", m->ref);
+			}
+			m = m->next;
+		}
+
+		fprintf(f, "0x%x", fdt32_to_cpu(*cp++));
+		if ((void *)cp >= propend)
+			break;
+		fprintf(f, " ");
+	}
+
+	/* Wrap up any labels at the end of the value */
+	for_each_marker_of_type(m, LABEL) {
+		assert (m->offset == val.len);
+		fprintf(f, " %s:", m->ref);
+	}
+	fprintf(f, ">");
+}
+
+static void write_propval_bytes(FILE *f, struct data val)
+{
+	void *propend = val.val + val.len;
+	const char *bp = val.val;
+	struct marker *m = val.markers;
+
+	fprintf(f, "[");
+	for (;;) {
+		while (m && (m->offset == (bp-val.val))) {
+			if (m->type == LABEL)
+				fprintf(f, "%s: ", m->ref);
+			m = m->next;
+		}
+
+		fprintf(f, "%02hhx", *bp++);
+		if ((const void *)bp >= propend)
+			break;
+		fprintf(f, " ");
+	}
+
+	/* Wrap up any labels at the end of the value */
+	for_each_marker_of_type(m, LABEL) {
+		assert (m->offset == val.len);
+		fprintf(f, " %s:", m->ref);
+	}
+	fprintf(f, "]");
+}
+
+static void write_propval(FILE *f, struct property *prop)
+{
+	int len = prop->val.len;
+	const char *p = prop->val.val;
+	struct marker *m = prop->val.markers;
+	int nnotstring = 0, nnul = 0;
+	int nnotstringlbl = 0, nnotcelllbl = 0;
+	int i;
+
+	if (len == 0) {
+		fprintf(f, ";\n");
+		return;
+	}
+
+	for (i = 0; i < len; i++) {
+		if (! isstring(p[i]))
+			nnotstring++;
+		if (p[i] == '\0')
+			nnul++;
+	}
+
+	for_each_marker_of_type(m, LABEL) {
+		if ((m->offset > 0) && (prop->val.val[m->offset - 1] != '\0'))
+			nnotstringlbl++;
+		if ((m->offset % sizeof(cell_t)) != 0)
+			nnotcelllbl++;
+	}
+
+	fprintf(f, " = ");
+	if ((p[len-1] == '\0') && (nnotstring == 0) && (nnul < (len-nnul))
+	    && (nnotstringlbl == 0)) {
+		write_propval_string(f, prop->val);
+	} else if (((len % sizeof(cell_t)) == 0) && (nnotcelllbl == 0)) {
+		write_propval_cells(f, prop->val);
+	} else {
+		write_propval_bytes(f, prop->val);
+	}
+
+	fprintf(f, ";\n");
+}
+
+static void write_tree_source_node(FILE *f, struct node *tree, int level)
+{
+	struct property *prop;
+	struct node *child;
+
+	write_prefix(f, level);
+	if (tree->label)
+		fprintf(f, "%s: ", tree->label);
+	if (tree->name && (*tree->name))
+		fprintf(f, "%s {\n", tree->name);
+	else
+		fprintf(f, "/ {\n");
+
+	for_each_property(tree, prop) {
+		write_prefix(f, level+1);
+		if (prop->label)
+			fprintf(f, "%s: ", prop->label);
+		fprintf(f, "%s", prop->name);
+		write_propval(f, prop);
+	}
+	for_each_child(tree, child) {
+		fprintf(f, "\n");
+		write_tree_source_node(f, child, level+1);
+	}
+	write_prefix(f, level);
+	fprintf(f, "};\n");
+}
+
+
+void dt_to_source(FILE *f, struct boot_info *bi)
+{
+	struct reserve_info *re;
+
+	fprintf(f, "/dts-v1/;\n\n");
+
+	for (re = bi->reservelist; re; re = re->next) {
+		if (re->label)
+			fprintf(f, "%s: ", re->label);
+		fprintf(f, "/memreserve/\t0x%016llx 0x%016llx;\n",
+			(unsigned long long)re->re.address,
+			(unsigned long long)re->re.size);
+	}
+
+	write_tree_source_node(f, bi->dt, 0);
+}
+
diff --git a/scripts/dtc/version_gen.h b/scripts/dtc/version_gen.h
new file mode 100644
index 00000000000..658ff42429d
--- /dev/null
+++ b/scripts/dtc/version_gen.h
@@ -0,0 +1 @@
+#define DTC_VERSION "DTC 1.2.0"