ppc: Remove CHRP, POWER3 and POWER4 support from arch/ppc

32-bit CHRP machines are now supported only in arch/powerpc, as are
all 64-bit PowerPC processors.  This means that we don't use
Open Firmware on any platform in arch/ppc any more.

This makes PReP support a single-platform option like every other
platform support option in arch/ppc now, thus CONFIG_PPC_MULTIPLATFORM
is gone from arch/ppc.  CONFIG_PPC_PREP is the option that selects
PReP support and is generally what has replaced
CONFIG_PPC_MULTIPLATFORM within arch/ppc.

_machine is all but dead now, being #defined to 0.

Updated Makefiles, comments and Kconfig options generally to reflect
these changes.

Signed-off-by: Paul Mackerras <paulus@samba.org>

4 files changed, 1 insertions, 2443 deletions

diff --git a/arch/ppc/syslib/Makefile b/arch/ppc/syslib/Makefile
index 5cb62c6a51c..490749ca88f 100644
--- a/arch/ppc/syslib/Makefile
+++ b/arch/ppc/syslib/Makefile
@@ -38,8 +38,6 @@ endif
 obj-$(CONFIG_8xx)		+= m8xx_setup.o ppc8xx_pic.o $(wdt-mpc8xx-y) \
 				   ppc_sys.o mpc8xx_devices.o mpc8xx_sys.o
 obj-$(CONFIG_PCI_QSPAN)		+= qspan_pci.o
-obj-$(CONFIG_PPC_OF)		+= prom_init.o prom.o
-obj-$(CONFIG_PPC_CHRP)		+= open_pic.o
 obj-$(CONFIG_PPC_PREP)		+= open_pic.o todc_time.o
 obj-$(CONFIG_BAMBOO)		+= pci_auto.o todc_time.o
 obj-$(CONFIG_CPCI690)		+= todc_time.o pci_auto.o
diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c
index 38e5b93fbe4..70456c8f998 100644
--- a/arch/ppc/syslib/open_pic.c
+++ b/arch/ppc/syslib/open_pic.c
@@ -216,7 +216,7 @@ static void openpic_safe_writefield(volatile u_int __iomem *addr, u_int mask,
 u_int openpic_read_IPI(volatile u_int __iomem * addr)
 {
          u_int val = 0;
-#if defined(OPENPIC_BIG_ENDIAN) || defined(CONFIG_POWER3)
+#if defined(OPENPIC_BIG_ENDIAN)
         val = in_be32(addr);
 #else
         val = in_le32(addr);
diff --git a/arch/ppc/syslib/prom.c b/arch/ppc/syslib/prom.c
deleted file mode 100644
index 482f837fd37..00000000000
--- a/arch/ppc/syslib/prom.c
+++ /dev/null
@@ -1,1429 +0,0 @@
-/*
- * Procedures for interfacing to the Open Firmware PROM on
- * Power Macintosh computers.
- *
- * In particular, we are interested in the device tree
- * and in using some of its services (exit, write to stdout).
- *
- * Paul Mackerras	August 1996.
- * Copyright (C) 1996 Paul Mackerras.
- */
-#include <stdarg.h>
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/threads.h>
-#include <linux/spinlock.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/bitops.h>
-
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/page.h>
-#include <asm/processor.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/bootx.h>
-#include <asm/system.h>
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/bootinfo.h>
-#include <asm/btext.h>
-#include <asm/pci-bridge.h>
-#include <asm/open_pic.h>
-
-
-struct pci_address {
-	unsigned a_hi;
-	unsigned a_mid;
-	unsigned a_lo;
-};
-
-struct pci_reg_property {
-	struct pci_address addr;
-	unsigned size_hi;
-	unsigned size_lo;
-};
-
-struct isa_reg_property {
-	unsigned space;
-	unsigned address;
-	unsigned size;
-};
-
-typedef unsigned long interpret_func(struct device_node *, unsigned long,
-				     int, int);
-static interpret_func interpret_pci_props;
-static interpret_func interpret_dbdma_props;
-static interpret_func interpret_isa_props;
-static interpret_func interpret_macio_props;
-static interpret_func interpret_root_props;
-
-extern char *klimit;
-
-/* Set for a newworld or CHRP machine */
-int use_of_interrupt_tree;
-struct device_node *dflt_interrupt_controller;
-int num_interrupt_controllers;
-
-extern unsigned int rtas_entry;  /* physical pointer */
-
-extern struct device_node *allnodes;
-
-static unsigned long finish_node(struct device_node *, unsigned long,
-				 interpret_func *, int, int);
-static unsigned long finish_node_interrupts(struct device_node *, unsigned long);
-static struct device_node *find_phandle(phandle);
-
-extern void enter_rtas(void *);
-void phys_call_rtas(int, int, int, ...);
-
-extern char cmd_line[512];	/* XXX */
-extern boot_infos_t *boot_infos;
-unsigned long dev_tree_size;
-
-void
-phys_call_rtas(int service, int nargs, int nret, ...)
-{
-	va_list list;
-	union {
-		unsigned long words[16];
-		double align;
-	} u;
-	void (*rtas)(void *, unsigned long);
-	int i;
-
-	u.words[0] = service;
-	u.words[1] = nargs;
-	u.words[2] = nret;
-	va_start(list, nret);
-	for (i = 0; i < nargs; ++i)
-		u.words[i+3] = va_arg(list, unsigned long);
-	va_end(list);
-
-	rtas = (void (*)(void *, unsigned long)) rtas_entry;
-	rtas(&u, rtas_data);
-}
-
-/*
- * finish_device_tree is called once things are running normally
- * (i.e. with text and data mapped to the address they were linked at).
- * It traverses the device tree and fills in the name, type,
- * {n_}addrs and {n_}intrs fields of each node.
- */
-void __init
-finish_device_tree(void)
-{
-	unsigned long mem = (unsigned long) klimit;
-	struct device_node *np;
-
-	/* All CHRPs now use the interrupt tree */
-	for (np = allnodes; np != NULL; np = np->allnext) {
-		if (get_property(np, "interrupt-parent", NULL)) {
-			use_of_interrupt_tree = 1;
-			break;
-		}
-	}
-
-	if (use_of_interrupt_tree) {
-		/*
-		 * We want to find out here how many interrupt-controller
-		 * nodes there are, and if we are booted from BootX,
-		 * we need a pointer to the first (and hopefully only)
-		 * such node.  But we can't use find_devices here since
-		 * np->name has not been set yet.  -- paulus
-		 */
-		int n = 0;
-		char *name, *ic;
-		int iclen;
-
-		for (np = allnodes; np != NULL; np = np->allnext) {
-			ic = get_property(np, "interrupt-controller", &iclen);
-			name = get_property(np, "name", NULL);
-			/* checking iclen makes sure we don't get a false
-			   match on /chosen.interrupt_controller */
-			if ((name != NULL
-			     && strcmp(name, "interrupt-controller") == 0)
-			    || (ic != NULL && iclen == 0 && strcmp(name, "AppleKiwi"))) {
-				if (n == 0)
-					dflt_interrupt_controller = np;
-				++n;
-			}
-		}
-		num_interrupt_controllers = n;
-	}
-
-	mem = finish_node(allnodes, mem, NULL, 1, 1);
-	dev_tree_size = mem - (unsigned long) allnodes;
-	klimit = (char *) mem;
-}
-
-static unsigned long __init
-finish_node(struct device_node *np, unsigned long mem_start,
-	    interpret_func *ifunc, int naddrc, int nsizec)
-{
-	struct device_node *child;
-	int *ip;
-
-	np->name = get_property(np, "name", NULL);
-	np->type = get_property(np, "device_type", NULL);
-
-	if (!np->name)
-		np->name = "<NULL>";
-	if (!np->type)
-		np->type = "<NULL>";
-
-	/* get the device addresses and interrupts */
-	if (ifunc != NULL)
-		mem_start = ifunc(np, mem_start, naddrc, nsizec);
-
-	if (use_of_interrupt_tree)
-		mem_start = finish_node_interrupts(np, mem_start);
-
-	/* Look for #address-cells and #size-cells properties. */
-	ip = (int *) get_property(np, "#address-cells", NULL);
-	if (ip != NULL)
-		naddrc = *ip;
-	ip = (int *) get_property(np, "#size-cells", NULL);
-	if (ip != NULL)
-		nsizec = *ip;
-
-	if (np->parent == NULL)
-		ifunc = interpret_root_props;
-	else if (np->type == 0)
-		ifunc = NULL;
-	else if (!strcmp(np->type, "pci") || !strcmp(np->type, "vci"))
-		ifunc = interpret_pci_props;
-	else if (!strcmp(np->type, "dbdma"))
-		ifunc = interpret_dbdma_props;
-	else if (!strcmp(np->type, "mac-io")
-		 || ifunc == interpret_macio_props)
-		ifunc = interpret_macio_props;
-	else if (!strcmp(np->type, "isa"))
-		ifunc = interpret_isa_props;
-	else if (!strcmp(np->name, "uni-n") || !strcmp(np->name, "u3"))
-		ifunc = interpret_root_props;
-	else if (!((ifunc == interpret_dbdma_props
-		    || ifunc == interpret_macio_props)
-		   && (!strcmp(np->type, "escc")
-		       || !strcmp(np->type, "media-bay"))))
-		ifunc = NULL;
-
-	/* if we were booted from BootX, convert the full name */
-	if (boot_infos
-	    && strncmp(np->full_name, "Devices:device-tree", 19) == 0) {
-		if (np->full_name[19] == 0) {
-			strcpy(np->full_name, "/");
-		} else if (np->full_name[19] == ':') {
-			char *p = np->full_name + 19;
-			np->full_name = p;
-			for (; *p; ++p)
-				if (*p == ':')
-					*p = '/';
-		}
-	}
-
-	for (child = np->child; child != NULL; child = child->sibling)
-		mem_start = finish_node(child, mem_start, ifunc,
-					naddrc, nsizec);
-
-	return mem_start;
-}
-
-/*
- * Find the interrupt parent of a node.
- */
-static struct device_node * __init
-intr_parent(struct device_node *p)
-{
-	phandle *parp;
-
-	parp = (phandle *) get_property(p, "interrupt-parent", NULL);
-	if (parp == NULL)
-		return p->parent;
-	p = find_phandle(*parp);
-	if (p != NULL)
-		return p;
-	/*
-	 * On a powermac booted with BootX, we don't get to know the
-	 * phandles for any nodes, so find_phandle will return NULL.
-	 * Fortunately these machines only have one interrupt controller
-	 * so there isn't in fact any ambiguity.  -- paulus
-	 */
-	if (num_interrupt_controllers == 1)
-		p = dflt_interrupt_controller;
-	return p;
-}
-
-/*
- * Find out the size of each entry of the interrupts property
- * for a node.
- */
-static int __init
-prom_n_intr_cells(struct device_node *np)
-{
-	struct device_node *p;
-	unsigned int *icp;
-
-	for (p = np; (p = intr_parent(p)) != NULL; ) {
-		icp = (unsigned int *)
-			get_property(p, "#interrupt-cells", NULL);
-		if (icp != NULL)
-			return *icp;
-		if (get_property(p, "interrupt-controller", NULL) != NULL
-		    || get_property(p, "interrupt-map", NULL) != NULL) {
-			printk("oops, node %s doesn't have #interrupt-cells\n",
-			       p->full_name);
-			return 1;
-		}
-	}
-	printk("prom_n_intr_cells failed for %s\n", np->full_name);
-	return 1;
-}
-
-/*
- * Map an interrupt from a device up to the platform interrupt
- * descriptor.
- */
-static int __init
-map_interrupt(unsigned int **irq, struct device_node **ictrler,
-	      struct device_node *np, unsigned int *ints, int nintrc)
-{
-	struct device_node *p, *ipar;
-	unsigned int *imap, *imask, *ip;
-	int i, imaplen, match;
-	int newintrc = 1, newaddrc = 1;
-	unsigned int *reg;
-	int naddrc;
-
-	reg = (unsigned int *) get_property(np, "reg", NULL);
-	naddrc = prom_n_addr_cells(np);
-	p = intr_parent(np);
-	while (p != NULL) {
-		if (get_property(p, "interrupt-controller", NULL) != NULL)
-			/* this node is an interrupt controller, stop here */
-			break;
-		imap = (unsigned int *)
-			get_property(p, "interrupt-map", &imaplen);
-		if (imap == NULL) {
-			p = intr_parent(p);
-			continue;
-		}
-		imask = (unsigned int *)
-			get_property(p, "interrupt-map-mask", NULL);
-		if (imask == NULL) {
-			printk("oops, %s has interrupt-map but no mask\n",
-			       p->full_name);
-			return 0;
-		}
-		imaplen /= sizeof(unsigned int);
-		match = 0;
-		ipar = NULL;
-		while (imaplen > 0 && !match) {
-			/* check the child-interrupt field */
-			match = 1;
-			for (i = 0; i < naddrc && match; ++i)
-				match = ((reg[i] ^ imap[i]) & imask[i]) == 0;
-			for (; i < naddrc + nintrc && match; ++i)
-				match = ((ints[i-naddrc] ^ imap[i]) & imask[i]) == 0;
-			imap += naddrc + nintrc;
-			imaplen -= naddrc + nintrc;
-			/* grab the interrupt parent */
-			ipar = find_phandle((phandle) *imap++);
-			--imaplen;
-			if (ipar == NULL && num_interrupt_controllers == 1)
-				/* cope with BootX not giving us phandles */
-				ipar = dflt_interrupt_controller;
-			if (ipar == NULL) {
-				printk("oops, no int parent %x in map of %s\n",
-				       imap[-1], p->full_name);
-				return 0;
-			}
-			/* find the parent's # addr and intr cells */
-			ip = (unsigned int *)
-				get_property(ipar, "#interrupt-cells", NULL);
-			if (ip == NULL) {
-				printk("oops, no #interrupt-cells on %s\n",
-				       ipar->full_name);
-				return 0;
-			}
-			newintrc = *ip;
-			ip = (unsigned int *)
-				get_property(ipar, "#address-cells", NULL);
-			newaddrc = (ip == NULL)? 0: *ip;
-			imap += newaddrc + newintrc;
-			imaplen -= newaddrc + newintrc;
-		}
-		if (imaplen < 0) {
-			printk("oops, error decoding int-map on %s, len=%d\n",
-			       p->full_name, imaplen);
-			return 0;
-		}
-		if (!match) {
-			printk("oops, no match in %s int-map for %s\n",
-			       p->full_name, np->full_name);
-			return 0;
-		}
-		p = ipar;
-		naddrc = newaddrc;
-		nintrc = newintrc;
-		ints = imap - nintrc;
-		reg = ints - naddrc;
-	}
-	if (p == NULL)
-		printk("hmmm, int tree for %s doesn't have ctrler\n",
-		       np->full_name);
-	*irq = ints;
-	*ictrler = p;
-	return nintrc;
-}
-
-/*
- * New version of finish_node_interrupts.
- */
-static unsigned long __init
-finish_node_interrupts(struct device_node *np, unsigned long mem_start)
-{
-	unsigned int *ints;
-	int intlen, intrcells;
-	int i, j, n, offset;
-	unsigned int *irq;
-	struct device_node *ic;
-
-	ints = (unsigned int *) get_property(np, "interrupts", &intlen);
-	if (ints == NULL)
-		return mem_start;
-	intrcells = prom_n_intr_cells(np);
-	intlen /= intrcells * sizeof(unsigned int);
-	np->n_intrs = intlen;
-	np->intrs = (struct interrupt_info *) mem_start;
-	mem_start += intlen * sizeof(struct interrupt_info);
-
-	for (i = 0; i < intlen; ++i) {
-		np->intrs[i].line = 0;
-		np->intrs[i].sense = 1;
-		n = map_interrupt(&irq, &ic, np, ints, intrcells);
-		if (n <= 0)
-			continue;
-		offset = 0;
-		/*
-		 * On a CHRP we have an 8259 which is subordinate to
-		 * the openpic in the interrupt tree, but we want the
-		 * openpic's interrupt numbers offsetted, not the 8259's.
-		 * So we apply the offset if the controller is at the
-		 * root of the interrupt tree, i.e. has no interrupt-parent.
-		 * This doesn't cope with the general case of multiple
-		 * cascaded interrupt controllers, but then neither will
-		 * irq.c at the moment either.  -- paulus
-		 * The G5 triggers that code, I add a machine test. On
-		 * those machines, we want to offset interrupts from the
-		 * second openpic by 128 -- BenH
-		 */
-		if (num_interrupt_controllers > 1
-		    && ic != NULL
-		    && get_property(ic, "interrupt-parent", NULL) == NULL)
-			offset = 16;
-
-		np->intrs[i].line = irq[0] + offset;
-		if (n > 1)
-			np->intrs[i].sense = irq[1];
-		if (n > 2) {
-			printk("hmmm, got %d intr cells for %s:", n,
-			       np->full_name);
-			for (j = 0; j < n; ++j)
-				printk(" %d", irq[j]);
-			printk("\n");
-		}
-		ints += intrcells;
-	}
-
-	return mem_start;
-}
-
-/*
- * When BootX makes a copy of the device tree from the MacOS
- * Name Registry, it is in the format we use but all of the pointers
- * are offsets from the start of the tree.
- * This procedure updates the pointers.
- */
-void __init
-relocate_nodes(void)
-{
-	unsigned long base;
-	struct device_node *np;
-	struct property *pp;
-
-#define ADDBASE(x)	(x = (typeof (x))((x)? ((unsigned long)(x) + base): 0))
-
-	base = (unsigned long) boot_infos + boot_infos->deviceTreeOffset;
-	allnodes = (struct device_node *)(base + 4);
-	for (np = allnodes; np != 0; np = np->allnext) {
-		ADDBASE(np->full_name);
-		ADDBASE(np->properties);
-		ADDBASE(np->parent);
-		ADDBASE(np->child);
-		ADDBASE(np->sibling);
-		ADDBASE(np->allnext);
-		for (pp = np->properties; pp != 0; pp = pp->next) {
-			ADDBASE(pp->name);
-			ADDBASE(pp->value);
-			ADDBASE(pp->next);
-		}
-	}
-}
-
-int
-prom_n_addr_cells(struct device_node* np)
-{
-	int* ip;
-	do {
-		if (np->parent)
-			np = np->parent;
-		ip = (int *) get_property(np, "#address-cells", NULL);
-		if (ip != NULL)
-			return *ip;
-	} while (np->parent);
-	/* No #address-cells property for the root node, default to 1 */
-	return 1;
-}
-
-int
-prom_n_size_cells(struct device_node* np)
-{
-	int* ip;
-	do {
-		if (np->parent)
-			np = np->parent;
-		ip = (int *) get_property(np, "#size-cells", NULL);
-		if (ip != NULL)
-			return *ip;
-	} while (np->parent);
-	/* No #size-cells property for the root node, default to 1 */
-	return 1;
-}
-
-static unsigned long __init
-map_addr(struct device_node *np, unsigned long space, unsigned long addr)
-{
-	int na;
-	unsigned int *ranges;
-	int rlen = 0;
-	unsigned int type;
-
-	type = (space >> 24) & 3;
-	if (type == 0)
-		return addr;
-
-	while ((np = np->parent) != NULL) {
-		if (strcmp(np->type, "pci") != 0)
-			continue;
-		/* PCI bridge: map the address through the ranges property */
-		na = prom_n_addr_cells(np);
-		ranges = (unsigned int *) get_property(np, "ranges", &rlen);
-		while ((rlen -= (na + 5) * sizeof(unsigned int)) >= 0) {
-			if (((ranges[0] >> 24) & 3) == type
-			    && ranges[2] <= addr
-			    && addr - ranges[2] < ranges[na+4]) {
-				/* ok, this matches, translate it */
-				addr += ranges[na+2] - ranges[2];
-				break;
-			}
-			ranges += na + 5;
-		}
-	}
-	return addr;
-}
-
-static unsigned long __init
-interpret_pci_props(struct device_node *np, unsigned long mem_start,
-		    int naddrc, int nsizec)
-{
-	struct address_range *adr;
-	struct pci_reg_property *pci_addrs;
-	int i, l, *ip;
-
-	pci_addrs = (struct pci_reg_property *)
-		get_property(np, "assigned-addresses", &l);
-	if (pci_addrs != 0 && l >= sizeof(struct pci_reg_property)) {
-		i = 0;
-		adr = (struct address_range *) mem_start;
-		while ((l -= sizeof(struct pci_reg_property)) >= 0) {
-			adr[i].space = pci_addrs[i].addr.a_hi;
-			adr[i].address = map_addr(np, pci_addrs[i].addr.a_hi,
-						  pci_addrs[i].addr.a_lo);
-			adr[i].size = pci_addrs[i].size_lo;
-			++i;
-		}
-		np->addrs = adr;
-		np->n_addrs = i;
-		mem_start += i * sizeof(struct address_range);
-	}
-
-	if (use_of_interrupt_tree)
-		return mem_start;
-
-	ip = (int *) get_property(np, "AAPL,interrupts", &l);
-	if (ip == 0 && np->parent)
-		ip = (int *) get_property(np->parent, "AAPL,interrupts", &l);
-	if (ip == 0)
-		ip = (int *) get_property(np, "interrupts", &l);
-	if (ip != 0) {
-		np->intrs = (struct interrupt_info *) mem_start;
-		np->n_intrs = l / sizeof(int);
-		mem_start += np->n_intrs * sizeof(struct interrupt_info);
-		for (i = 0; i < np->n_intrs; ++i) {
-			np->intrs[i].line = *ip++;
-			np->intrs[i].sense = 1;
-		}
-	}
-
-	return mem_start;
-}
-
-static unsigned long __init
-interpret_dbdma_props(struct device_node *np, unsigned long mem_start,
-		      int naddrc, int nsizec)
-{
-	struct reg_property *rp;
-	struct address_range *adr;
-	unsigned long base_address;
-	int i, l, *ip;
-	struct device_node *db;
-
-	base_address = 0;
-	for (db = np->parent; db != NULL; db = db->parent) {
-		if (!strcmp(db->type, "dbdma") && db->n_addrs != 0) {
-			base_address = db->addrs[0].address;
-			break;
-		}
-	}
-
-	rp = (struct reg_property *) get_property(np, "reg", &l);
-	if (rp != 0 && l >= sizeof(struct reg_property)) {
-		i = 0;
-		adr = (struct address_range *) mem_start;
-		while ((l -= sizeof(struct reg_property)) >= 0) {
-			adr[i].space = 2;
-			adr[i].address = rp[i].address + base_address;
-			adr[i].size = rp[i].size;
-			++i;
-		}
-		np->addrs = adr;
-		np->n_addrs = i;
-		mem_start += i * sizeof(struct address_range);
-	}
-
-	if (use_of_interrupt_tree)
-		return mem_start;
-
-	ip = (int *) get_property(np, "AAPL,interrupts", &l);
-	if (ip == 0)
-		ip = (int *) get_property(np, "interrupts", &l);
-	if (ip != 0) {
-		np->intrs = (struct interrupt_info *) mem_start;
-		np->n_intrs = l / sizeof(int);
-		mem_start += np->n_intrs * sizeof(struct interrupt_info);
-		for (i = 0; i < np->n_intrs; ++i) {
-			np->intrs[i].line = *ip++;
-			np->intrs[i].sense = 1;
-		}
-	}
-
-	return mem_start;
-}
-
-static unsigned long __init
-interpret_macio_props(struct device_node *np, unsigned long mem_start,
-		      int naddrc, int nsizec)
-{
-	struct reg_property *rp;
-	struct address_range *adr;
-	unsigned long base_address;
-	int i, l, *ip;
-	struct device_node *db;
-
-	base_address = 0;
-	for (db = np->parent; db != NULL; db = db->parent) {
-		if (!strcmp(db->type, "mac-io") && db->n_addrs != 0) {
-			base_address = db->addrs[0].address;
-			break;
-		}
-	}
-
-	rp = (struct reg_property *) get_property(np, "reg", &l);
-	if (rp != 0 && l >= sizeof(struct reg_property)) {
-		i = 0;
-		adr = (struct address_range *) mem_start;
-		while ((l -= sizeof(struct reg_property)) >= 0) {
-			adr[i].space = 2;
-			adr[i].address = rp[i].address + base_address;
-			adr[i].size = rp[i].size;
-			++i;
-		}
-		np->addrs = adr;
-		np->n_addrs = i;
-		mem_start += i * sizeof(struct address_range);
-	}
-
-	if (use_of_interrupt_tree)
-		return mem_start;
-
-	ip = (int *) get_property(np, "interrupts", &l);
-	if (ip == 0)
-		ip = (int *) get_property(np, "AAPL,interrupts", &l);
-	if (ip != 0) {
-		np->intrs = (struct interrupt_info *) mem_start;
-		np->n_intrs = l / sizeof(int);
-		for (i = 0; i < np->n_intrs; ++i) {
-			np->intrs[i].line = *ip++;
-			np->intrs[i].sense = 1;
-		}
-		mem_start += np->n_intrs * sizeof(struct interrupt_info);
-	}
-
-	return mem_start;
-}
-
-static unsigned long __init
-interpret_isa_props(struct device_node *np, unsigned long mem_start,
-		    int naddrc, int nsizec)
-{
-	struct isa_reg_property *rp;
-	struct address_range *adr;
-	int i, l, *ip;
-
-	rp = (struct isa_reg_property *) get_property(np, "reg", &l);
-	if (rp != 0 && l >= sizeof(struct isa_reg_property)) {
-		i = 0;
-		adr = (struct address_range *) mem_start;
-		while ((l -= sizeof(struct reg_property)) >= 0) {
-			adr[i].space = rp[i].space;
-			adr[i].address = rp[i].address
-				+ (adr[i].space? 0: _ISA_MEM_BASE);
-			adr[i].size = rp[i].size;
-			++i;
-		}
-		np->addrs = adr;
-		np->n_addrs = i;
-		mem_start += i * sizeof(struct address_range);
-	}
-
-	if (use_of_interrupt_tree)
-		return mem_start;
-
-	ip = (int *) get_property(np, "interrupts", &l);
-	if (ip != 0) {
-		np->intrs = (struct interrupt_info *) mem_start;
-		np->n_intrs = l / (2 * sizeof(int));
-		mem_start += np->n_intrs * sizeof(struct interrupt_info);
-		for (i = 0; i < np->n_intrs; ++i) {
-			np->intrs[i].line = *ip++;
-			np->intrs[i].sense = *ip++;
-		}
-	}
-
-	return mem_start;
-}
-
-static unsigned long __init
-interpret_root_props(struct device_node *np, unsigned long mem_start,
-		     int naddrc, int nsizec)
-{
-	struct address_range *adr;
-	int i, l, *ip;
-	unsigned int *rp;
-	int rpsize = (naddrc + nsizec) * sizeof(unsigned int);
-
-	rp = (unsigned int *) get_property(np, "reg", &l);
-	if (rp != 0 && l >= rpsize) {
-		i = 0;
-		adr = (struct address_range *) mem_start;
-		while ((l -= rpsize) >= 0) {
-			adr[i].space = (naddrc >= 2? rp[naddrc-2]: 2);
-			adr[i].address = rp[naddrc - 1];
-			adr[i].size = rp[naddrc + nsizec - 1];
-			++i;
-			rp += naddrc + nsizec;
-		}
-		np->addrs = adr;
-		np->n_addrs = i;
-		mem_start += i * sizeof(struct address_range);
-	}
-
-	if (use_of_interrupt_tree)
-		return mem_start;
-
-	ip = (int *) get_property(np, "AAPL,interrupts", &l);
-	if (ip == 0)
-		ip = (int *) get_property(np, "interrupts", &l);
-	if (ip != 0) {
-		np->intrs = (struct interrupt_info *) mem_start;
-		np->n_intrs = l / sizeof(int);
-		mem_start += np->n_intrs * sizeof(struct interrupt_info);
-		for (i = 0; i < np->n_intrs; ++i) {
-			np->intrs[i].line = *ip++;
-			np->intrs[i].sense = 1;
-		}
-	}
-
-	return mem_start;
-}
-
-/*
- * Work out the sense (active-low level / active-high edge)
- * of each interrupt from the device tree.
- */
-void __init
-prom_get_irq_senses(unsigned char *senses, int off, int max)
-{
-	struct device_node *np;
-	int i, j;
-
-	/* default to level-triggered */
-	memset(senses, 1, max - off);
-	if (!use_of_interrupt_tree)
-		return;
-
-	for (np = allnodes; np != 0; np = np->allnext) {
-		for (j = 0; j < np->n_intrs; j++) {
-			i = np->intrs[j].line;
-			if (i >= off && i < max) {
-				if (np->intrs[j].sense == 1)
-					senses[i-off] = (IRQ_SENSE_LEVEL
-						| IRQ_POLARITY_NEGATIVE);
-				else
-					senses[i-off] = (IRQ_SENSE_EDGE
-						| IRQ_POLARITY_POSITIVE);
-			}
-		}
-	}
-}
-
-/*
- * Construct and return a list of the device_nodes with a given name.
- */
-struct device_node *
-find_devices(const char *name)
-{
-	struct device_node *head, **prevp, *np;
-
-	prevp = &head;
-	for (np = allnodes; np != 0; np = np->allnext) {
-		if (np->name != 0 && strcasecmp(np->name, name) == 0) {
-			*prevp = np;
-			prevp = &np->next;
-		}
-	}
-	*prevp = NULL;
-	return head;
-}
-
-/*
- * Construct and return a list of the device_nodes with a given type.
- */
-struct device_node *
-find_type_devices(const char *type)
-{
-	struct device_node *head, **prevp, *np;
-
-	prevp = &head;
-	for (np = allnodes; np != 0; np = np->allnext) {
-		if (np->type != 0 && strcasecmp(np->type, type) == 0) {
-			*prevp = np;
-			prevp = &np->next;
-		}
-	}
-	*prevp = NULL;
-	return head;
-}
-
-/*
- * Returns all nodes linked together
- */
-struct device_node *
-find_all_nodes(void)
-{
-	struct device_node *head, **prevp, *np;
-
-	prevp = &head;
-	for (np = allnodes; np != 0; np = np->allnext) {
-		*prevp = np;
-		prevp = &np->next;
-	}
-	*prevp = NULL;
-	return head;
-}
-
-/* Checks if the given "compat" string matches one of the strings in
- * the device's "compatible" property
- */
-int
-device_is_compatible(struct device_node *device, const char *compat)
-{
-	const char* cp;
-	int cplen, l;
-
-	cp = (char *) get_property(device, "compatible", &cplen);
-	if (cp == NULL)
-		return 0;
-	while (cplen > 0) {
-		if (strncasecmp(cp, compat, strlen(compat)) == 0)
-			return 1;
-		l = strlen(cp) + 1;
-		cp += l;
-		cplen -= l;
-	}
-
-	return 0;
-}
-
-
-/*
- * Indicates whether the root node has a given value in its
- * compatible property.
- */
-int
-machine_is_compatible(const char *compat)
-{
-	struct device_node *root;
-
-	root = find_path_device("/");
-	if (root == 0)
-		return 0;
-	return device_is_compatible(root, compat);
-}
-
-/*
- * Construct and return a list of the device_nodes with a given type
- * and compatible property.
- */
-struct device_node *
-find_compatible_devices(const char *type, const char *compat)
-{
-	struct device_node *head, **prevp, *np;
-
-	prevp = &head;
-	for (np = allnodes; np != 0; np = np->allnext) {
-		if (type != NULL
-		    && !(np->type != 0 && strcasecmp(np->type, type) == 0))
-			continue;
-		if (device_is_compatible(np, compat)) {
-			*prevp = np;
-			prevp = &np->next;
-		}
-	}
-	*prevp = NULL;
-	return head;
-}
-
-/*
- * Find the device_node with a given full_name.
- */
-struct device_node *
-find_path_device(const char *path)
-{
-	struct device_node *np;
-
-	for (np = allnodes; np != 0; np = np->allnext)
-		if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0)
-			return np;
-	return NULL;
-}
-
-/*******
- *
- * New implementation of the OF "find" APIs, return a refcounted
- * object, call of_node_put() when done. Currently, still lacks
- * locking as old implementation, this is beeing done for ppc64.
- *
- * Note that property management will need some locking as well,
- * this isn't dealt with yet
- *
- *******/
-
-/**
- *	of_find_node_by_name - Find a node by it's "name" property
- *	@from:	The node to start searching from or NULL, the node
- *		you pass will not be searched, only the next one
- *		will; typically, you pass what the previous call
- *		returned. of_node_put() will be called on it
- *	@name:	The name string to match against
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_name(struct device_node *from,
-	const char *name)
-{
-	struct device_node *np = from ? from->allnext : allnodes;
-
-	for (; np != 0; np = np->allnext)
-		if (np->name != 0 && strcasecmp(np->name, name) == 0)
-			break;
-	if (from)
-		of_node_put(from);
-	return of_node_get(np);
-}
-
-/**
- *	of_find_node_by_type - Find a node by it's "device_type" property
- *	@from:	The node to start searching from or NULL, the node
- *		you pass will not be searched, only the next one
- *		will; typically, you pass what the previous call
- *		returned. of_node_put() will be called on it
- *	@name:	The type string to match against
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_type(struct device_node *from,
-	const char *type)
-{
-	struct device_node *np = from ? from->allnext : allnodes;
-
-	for (; np != 0; np = np->allnext)
-		if (np->type != 0 && strcasecmp(np->type, type) == 0)
-			break;
-	if (from)
-		of_node_put(from);
-	return of_node_get(np);
-}
-
-/**
- *	of_find_compatible_node - Find a node based on type and one of the
- *                                tokens in it's "compatible" property
- *	@from:		The node to start searching from or NULL, the node
- *			you pass will not be searched, only the next one
- *			will; typically, you pass what the previous call
- *			returned. of_node_put() will be called on it
- *	@type:		The type string to match "device_type" or NULL to ignore
- *	@compatible:	The string to match to one of the tokens in the device
- *			"compatible" list.
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_find_compatible_node(struct device_node *from,
-	const char *type, const char *compatible)
-{
-	struct device_node *np = from ? from->allnext : allnodes;
-
-	for (; np != 0; np = np->allnext) {
-		if (type != NULL
-		    && !(np->type != 0 && strcasecmp(np->type, type) == 0))
-			continue;
-		if (device_is_compatible(np, compatible))
-			break;
-	}
-	if (from)
-		of_node_put(from);
-	return of_node_get(np);
-}
-
-/**
- *	of_find_node_by_path - Find a node matching a full OF path
- *	@path:	The full path to match
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_find_node_by_path(const char *path)
-{
-	struct device_node *np = allnodes;
-
-	for (; np != 0; np = np->allnext)
-		if (np->full_name != 0 && strcasecmp(np->full_name, path) == 0)
-			break;
-	return of_node_get(np);
-}
-
-/**
- *	of_find_all_nodes - Get next node in global list
- *	@prev:	Previous node or NULL to start iteration
- *		of_node_put() will be called on it
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_find_all_nodes(struct device_node *prev)
-{
-	return of_node_get(prev ? prev->allnext : allnodes);
-}
-
-/**
- *	of_get_parent - Get a node's parent if any
- *	@node:	Node to get parent
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_get_parent(const struct device_node *node)
-{
-	return node ? of_node_get(node->parent) : NULL;
-}
-
-/**
- *	of_get_next_child - Iterate a node childs
- *	@node:	parent node
- *	@prev:	previous child of the parent node, or NULL to get first
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.
- */
-struct device_node *of_get_next_child(const struct device_node *node,
-				      struct device_node *prev)
-{
-	struct device_node *next = prev ? prev->sibling : node->child;
-
-	for (; next != 0; next = next->sibling)
-		if (of_node_get(next))
-			break;
-	if (prev)
-		of_node_put(prev);
-	return next;
-}
-
-/**
- *	of_node_get - Increment refcount of a node
- *	@node:	Node to inc refcount, NULL is supported to
- *		simplify writing of callers
- *
- *	Returns the node itself or NULL if gone. Current implementation
- *	does nothing as we don't yet do dynamic node allocation on ppc32
- */
-struct device_node *of_node_get(struct device_node *node)