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>

42 files changed, 47 insertions, 9538 deletions

diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 75802ca0f8c..e9a8f5d1dfc 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -61,15 +61,15 @@ config 6xx
 	select PPC_FPU
 	help
 	  There are four types of PowerPC chips supported.  The more common
-	  types (601, 603, 604, 740, 750, 7400), the Motorola embedded
-	  versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the IBM
-	  embedded versions (403 and 405) and the POWER3 processor.
-	  (For support for more recent 64-bit processors, set ARCH=powerpc.)
+	  types (601, 603, 604, 740, 750, 7400), the older Freescale
+	  (formerly Motorola) embedded versions (821, 823, 850, 855, 860,
+	  52xx, 82xx, 83xx), the IBM embedded versions (403 and 405) and
+	  the Book E embedded processors from IBM (44x) and Freescale (85xx).
+	  For support for 64-bit processors, set ARCH=powerpc.
 	  Unless you are building a kernel for one of the embedded processor
-	  systems or a POWER3-based IBM RS/6000, choose 6xx.
-	  Note that the kernel runs in 32-bit mode even on 64-bit chips.
-	  Also note that because the 52xx, 82xx, & 83xx family has a 603e core,
-	  specific support for that chipset is asked later on.
+	  systems, choose 6xx.
+	  Also note that because the 52xx, 82xx, & 83xx family have a 603e
+	  core, specific support for that chipset is asked later on.
 
 config 40x
 	bool "40x"
@@ -77,10 +77,6 @@ config 40x
 config 44x
 	bool "44x"
 
-config POWER3
-	select PPC_FPU
-	bool "POWER3"
-
 config 8xx
 	bool "8xx"
 
@@ -252,14 +248,9 @@ config PPC601_SYNC_FIX
 source arch/ppc/platforms/4xx/Kconfig
 source arch/ppc/platforms/85xx/Kconfig
 
-config PPC64BRIDGE
-	bool
-	depends on POWER3
-	default y
-
 config PPC_STD_MMU
 	bool
-	depends on 6xx || POWER3
+	depends on 6xx
 	default y
 
 config NOT_COHERENT_CACHE
@@ -534,8 +525,8 @@ endmenu
 
 choice
 	prompt "Machine Type"
-	depends on 6xx || POWER3
-	default PPC_MULTIPLATFORM
+	depends on 6xx
+	default PPC_PREP
 	---help---
 	  Linux currently supports several different kinds of PowerPC-based
 	  machines: Apple Power Macintoshes and clones (such as the Motorola
@@ -545,15 +536,14 @@ choice
 	  Platform) machines (including all of the recent IBM RS/6000 and
 	  pSeries machines), and several embedded PowerPC systems containing
 	  4xx, 6xx, 7xx, 8xx, 74xx, and 82xx processors.  Currently, the
-	  default option is to build a kernel which works on PReP and CHRP.
+	  default option is to build a kernel which works on PReP.
 
-	  Note that support for Apple machines is now only available with
-	  ARCH=powerpc, and has been removed from this menu.  If you wish
-	  to build a kernel for an Apple machine, exit this configuration
-	  process and re-run it with ARCH=powerpc.
+	  Note that support for Apple and CHRP machines is now only available
+	  with ARCH=powerpc, and has been removed from this menu.  If you
+	  wish to build a kernel for an Apple or CHRP machine, exit this
+	  configuration process and re-run it with ARCH=powerpc.
 
-	  Select CHRP/PReP if configuring for an IBM RS/6000 or
-	  pSeries machine, or a PReP machine.
+	  Select PReP if configuring for a PReP machine.
 
 	  Select Gemini if configuring for a Synergy Microsystems' Gemini
 	  series Single Board Computer.  More information is available at:
@@ -562,8 +552,8 @@ choice
 	  Select APUS if configuring for a PowerUP Amiga.  More information is
 	  available at: <http://linux-apus.sourceforge.net/>.
 
-config PPC_MULTIPLATFORM
-	bool "CHRP/PReP"
+config PPC_PREP
+	bool "PReP"
 
 config APUS
 	bool "Amiga-APUS"
@@ -807,25 +797,6 @@ config CPM2
 	  you wish to build a kernel for a machine with a CPM2 coprocessor
 	  on it (826x, 827x, 8560).
 
-config PPC_CHRP
-	bool "Support for CHRP (Common Hardware Reference Platform) machines"
-	depends on PPC_MULTIPLATFORM
-	select PPC_I8259
-	select PPC_INDIRECT_PCI
-	default y
-
-config PPC_PREP
-	bool "Support for PReP (PowerPC Reference Platform) machines"
-	depends on PPC_MULTIPLATFORM
-	select PPC_I8259
-	select PPC_INDIRECT_PCI
-	default y
-
-config PPC_OF
-	bool
-	depends on PPC_CHRP
-	default y
-
 config PPC_GEN550
 	bool
 	depends on SANDPOINT || SPRUCE || PPLUS || \
@@ -984,14 +955,6 @@ source "mm/Kconfig"
 
 source "fs/Kconfig.binfmt"
 
-config PROC_DEVICETREE
-	bool "Support for Open Firmware device tree in /proc"
-	depends on PPC_OF && PROC_FS
-	help
-	  This option adds a device-tree directory under /proc which contains
-	  an image of the device tree that the kernel copies from Open
-	  Firmware. If unsure, say Y here.
-
 config PREP_RESIDUAL
 	bool "Support for PReP Residual Data"
 	depends on PPC_PREP
@@ -1184,8 +1147,7 @@ menu "Bus options"
 
 config ISA
 	bool "Support for ISA-bus hardware"
-	depends on PPC_PREP || PPC_CHRP
-	select PPC_I8259
+	depends on PPC_PREP
 	help
 	  Find out whether you have ISA slots on your motherboard.  ISA is the
 	  name of a bus system, i.e. the way the CPU talks to the other stuff
@@ -1195,18 +1157,18 @@ config ISA
 
 config GENERIC_ISA_DMA
 	bool
-	depends on POWER3 || 6xx && !CPM2
+	depends on 6xx && !CPM2
 	default y
 
 config PPC_I8259
 	bool
-	default y if 85xx
+	default y if 85xx || PPC_PREP
 	default n
 
 config PPC_INDIRECT_PCI
 	bool
 	depends on PCI
-	default y if 40x || 44x || 85xx || 83xx
+	default y if 40x || 44x || 85xx || 83xx || PPC_PREP
 	default n
 
 config EISA
@@ -1397,7 +1359,7 @@ config CONSISTENT_SIZE
 
 config BOOT_LOAD_BOOL
 	bool "Set the boot link/load address"
-	depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
+	depends on ADVANCED_OPTIONS && !PPC_PREP
 	help
 	  This option allows you to set the initial load address of the zImage
 	  or zImage.initrd file.  This can be useful if you are on a board
diff --git a/arch/ppc/Kconfig.debug b/arch/ppc/Kconfig.debug
index 8cc75abf3d8..f94b8774097 100644
--- a/arch/ppc/Kconfig.debug
+++ b/arch/ppc/Kconfig.debug
@@ -53,13 +53,6 @@ config BDI_SWITCH
 	  Unless you are intending to debug the kernel with one of these
 	  machines, say N here.
 
-config BOOTX_TEXT
-	bool "Support for early boot text console (BootX or OpenFirmware only)"
-	depends PPC_OF
-	help
-	  Say Y here to see progress messages from the boot firmware in text
-	  mode. Requires either BootX or Open Firmware.
-
 config SERIAL_TEXT_DEBUG
 	bool "Support for early boot texts over serial port"
 	depends on 4xx || LOPEC || MV64X60 || PPLUS || PRPMC800 || \
diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index cde5fa87f45..e250f8333ed 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -40,10 +40,8 @@ ifndef CONFIG_FSL_BOOKE
 CFLAGS		+= -mstring
 endif
 
-cpu-as-$(CONFIG_PPC64BRIDGE)	+= -Wa,-mppc64bridge
 cpu-as-$(CONFIG_4xx)		+= -Wa,-m405
 cpu-as-$(CONFIG_6xx)		+= -Wa,-maltivec
-cpu-as-$(CONFIG_POWER4)		+= -Wa,-maltivec
 cpu-as-$(CONFIG_E500)		+= -Wa,-me500
 cpu-as-$(CONFIG_E200)		+= -Wa,-me200
 
diff --git a/arch/ppc/boot/Makefile b/arch/ppc/boot/Makefile
index 84eec0bef93..b739e25d472 100644
--- a/arch/ppc/boot/Makefile
+++ b/arch/ppc/boot/Makefile
@@ -19,14 +19,13 @@ HOSTCFLAGS	+= -Iarch/$(ARCH)/boot/include
 BOOT_TARGETS	= zImage zImage.initrd znetboot znetboot.initrd
 
 bootdir-y			:= simple
-bootdir-$(CONFIG_PPC_OF)	+= openfirmware
 subdir-y			:= lib common images
-subdir-$(CONFIG_PPC_MULTIPLATFORM)	+= of1275
+subdir-$(CONFIG_PPC_PREP)	+= of1275
 
 # for cleaning
-subdir-				+= simple openfirmware
+subdir-				+= simple
 
-hostprogs-y := $(addprefix utils/, addnote mknote hack-coff mkprep mkbugboot mktree)
+hostprogs-y := $(addprefix utils/, mkprep mkbugboot mktree)
 
 PHONY += $(BOOT_TARGETS) $(bootdir-y)
 
diff --git a/arch/ppc/boot/openfirmware/Makefile b/arch/ppc/boot/openfirmware/Makefile
deleted file mode 100644
index 66b73974375..00000000000
--- a/arch/ppc/boot/openfirmware/Makefile
+++ /dev/null
@@ -1,109 +0,0 @@
-# Makefile for making bootable images on various OpenFirmware machines.
-#
-# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies.
-#
-# Paul Mackerras	January 1997
-#	XCOFF bootable images for PowerMacs
-# Geert Uytterhoeven	September 1997
-#	ELF bootable iamges for CHRP machines.
-# Tom Rini		January 2001
-# 	Cleaned up, moved into arch/ppc/boot/pmac
-# Tom Rini		July/August 2002
-#	Merged 'chrp' and 'pmac' into 'openfirmware', and cleaned up the
-#	rules.
-
-zImage.initrd znetboot.initrd: del-ramdisk-sec	:= -R .ramdisk
-zImage.initrd znetboot.initrd: initrd		:= .initrd
-
-
-boot	:= arch/ppc/boot
-common	:= $(boot)/common
-utils	:= $(boot)/utils
-bootlib	:= $(boot)/lib
-of1275	:= $(boot)/of1275
-images	:= $(boot)/images
-
-CHRP_LD_ARGS	:= -T $(srctree)/$(boot)/ld.script -e _start -Ttext 0x00800000
-
-COMMONOBJS	:= start.o misc.o common.o
-CHRPOBJS	:= crt0.o     $(COMMONOBJS) chrpmain.o
-
-targets 	:= $(CHRPOBJS) dummy.o
-CHRPOBJS	:= $(addprefix $(obj)/, $(CHRPOBJS))
-
-LIBS		:= lib/lib.a $(bootlib)/lib.a $(of1275)/lib.a $(common)/lib.a
-
-ifdef CONFIG_SMP
-END := .smp
-endif
-ifdef CONFIG_PPC64BRIDGE
-END += .64
-endif
-
-
-$(images)/ramdisk.image.gz:
-	@echo '  MISSING $@'
-	@echo '          RAM disk image must be provided separately'
-	@/bin/false
-
-quiet_cmd_genimage = GEN     $@
-      cmd_genimage = $(OBJCOPY) -R .comment       \
-	--add-section=.image=$(images)/vmlinux.gz \
-	--set-section-flags=.image=contents,alloc,load,readonly,data $< $@
-
-targets += image.o
-$(obj)/image.o: $(obj)/dummy.o $(images)/vmlinux.gz FORCE
-	$(call if_changed,genimage)
-
-# Place the ramdisk in the initrd image.
-quiet_cmd_genimage-initrd = GEN     $@
-      cmd_genimage-initrd = $(OBJCOPY) $< $@ \
-	--add-section=.ramdisk=$(images)/ramdisk.image.gz \
-	--set-section-flags=.ramdisk=contents,alloc,load,readonly,data
-targets += image.initrd.o
-$(obj)/image.initrd.o: $(obj)/image.o $(images)/ramdisk.image.gz FORCE
-	$(call if_changed,genimage-initrd)
-
-
-targets += crt0.o
-$(obj)/crt0.o: $(common)/crt0.S FORCE
-	$(call if_changed_dep,as_o_S)
-
-quiet_cmd_gen-chrp = CHRP    $@
-      cmd_gen-chrp = $(LD) $(CHRP_LD_ARGS) -o $@ $(CHRPOBJS) $< $(LIBS) && \
-			$(OBJCOPY) $@ $@ -R .comment $(del-ramdisk-sec)
-
-$(images)/zImage.chrp: $(obj)/image.o $(CHRPOBJS) $(LIBS) \
-				   $(srctree)/$(boot)/ld.script
-	$(call cmd,gen-chrp)
-$(images)/zImage.initrd.chrp: $(obj)/image.initrd.o $(CHRPOBJS) $(LIBS) \
-				   $(srctree)/$(boot)/ld.script
-	$(call cmd,gen-chrp)
-
-quiet_cmd_addnote = ADDNOTE $@
-      cmd_addnote = cat $< > $@ && $(utils)/addnote $@
-$(images)/zImage.chrp-rs6k $(images)/zImage.initrd.chrp-rs6k: \
-	%-rs6k: %
-	$(call cmd,addnote)
-
-# The targets used on the make command-line
-
-PHONY += zImage zImage.initrd
-zImage:		 $(images)/zImage.chrp		\
-		 $(images)/zImage.chrp-rs6k
-	@echo '  kernel: $@ is ready ($<)'
-zImage.initrd:	 $(images)/zImage.initrd.chrp		\
-		 $(images)/zImage.initrd.chrp-rs6k
-	@echo '  kernel: $@ is ready ($<)'
-
-TFTPIMAGE	:= /tftpboot/zImage
-
-PHONY += znetboot znetboot.initrd
-znetboot:	$(images)/zImage.chrp
-	cp $(images)/zImage.chrp      $(TFTPIMAGE).chrp$(END)
-	@echo '  kernel: $@ is ready ($<)'
-znetboot.initrd:$(images)/zImage.initrd.chrp
-	cp $(images)/zImage.initrd.chrp      $(TFTPIMAGE).chrp$(END)
-	@echo '  kernel: $@ is ready ($<)'
-
diff --git a/arch/ppc/boot/openfirmware/chrpmain.c b/arch/ppc/boot/openfirmware/chrpmain.c
deleted file mode 100644
index 245dbd9fc12..00000000000
--- a/arch/ppc/boot/openfirmware/chrpmain.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Copyright (C) Paul Mackerras 1997.
- *
- * 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.
- */
-#include <linux/string.h>
-#include "nonstdio.h"
-#include "of1275.h"
-#include <asm/processor.h>
-#include <asm/page.h>
-
-/* Passed from the linker */
-extern char __image_begin, __image_end;
-extern char __ramdisk_begin, __ramdisk_end;
-extern char _start, _end;
-
-extern unsigned int heap_max;
-extern void flush_cache(void *, unsigned long);
-extern void gunzip(void *, int, unsigned char *, int *);
-extern void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
-		unsigned int progend);
-
-char *avail_ram;
-char *begin_avail, *end_avail;
-char *avail_high;
-
-#define RAM_START	0x00000000
-#define RAM_END		(64<<20)
-
-#define BOOT_START	((unsigned long)_start)
-#define BOOT_END	((unsigned long)(_end + 0xFFF) & ~0xFFF)
-
-#define RAM_FREE	((unsigned long)(_end+0x1000)&~0xFFF)
-#define PROG_START	0x00010000
-#define PROG_SIZE	0x007f0000 /* 8MB */
-
-#define SCRATCH_SIZE	(128 << 10)
-
-static char scratch[SCRATCH_SIZE];	/* 128k of scratch space for gunzip */
-
-typedef void (*kernel_start_t)(int, int, void *, unsigned int, unsigned int);
-
-void
-boot(int a1, int a2, void *prom)
-{
-    unsigned sa, len;
-    void *dst;
-    unsigned char *im;
-    unsigned int initrd_size, initrd_start;
-
-    printf("chrpboot starting: loaded at 0x%p\n\r", &_start);
-
-    initrd_size = &__ramdisk_end - &__ramdisk_begin;
-    if (initrd_size) {
-	initrd_start = (RAM_END - initrd_size) & ~0xFFF;
-	a1 = initrd_start;
-	a2 = initrd_size;
-	claim(initrd_start, RAM_END - initrd_start, 0);
-	printf("initial ramdisk moving 0x%x <- 0x%p (%x bytes)\n\r",
-	       initrd_start, &__ramdisk_begin, initrd_size);
-	memcpy((char *)initrd_start, &__ramdisk_begin, initrd_size);
-    } else {
-	initrd_start = 0;
-	initrd_size = 0;
-	a2 = 0xdeadbeef;
-    }
-
-    im = &__image_begin;
-    len = &__image_end - &__image_begin;
-    /* claim 4MB starting at PROG_START */
-    claim(PROG_START, PROG_SIZE - PROG_START, 0);
-    dst = (void *) PROG_START;
-    if (im[0] == 0x1f && im[1] == 0x8b) {
-	avail_ram = scratch;
-	begin_avail = avail_high = avail_ram;
-	end_avail = scratch + sizeof(scratch);
-	printf("gunzipping (0x%p <- 0x%p:0x%p)...", dst, im, im+len);
-	gunzip(dst, PROG_SIZE - PROG_START, im, &len);
-	printf("done %u bytes\n\r", len);
-	printf("%u bytes of heap consumed, max in use %u\n\r",
-	       avail_high - begin_avail, heap_max);
-    } else {
-	memmove(dst, im, len);
-    }
-
-    flush_cache(dst, len);
-    make_bi_recs(((unsigned long) dst + len), "chrpboot", _MACH_chrp,
-		    (PROG_START + PROG_SIZE));
-
-    sa = PROG_START;
-    printf("start address = 0x%x\n\r", sa);
-
-    (*(kernel_start_t)sa)(a1, a2, prom, initrd_start, initrd_size);
-
-    printf("returned?\n\r");
-
-    pause();
-}
diff --git a/arch/ppc/boot/openfirmware/common.c b/arch/ppc/boot/openfirmware/common.c
deleted file mode 100644
index 0f46756a903..00000000000
--- a/arch/ppc/boot/openfirmware/common.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * Copyright (C) Paul Mackerras 1997.
- *
- * 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.
- */
-
-#include "nonstdio.h"
-#include "of1275.h"
-#include <linux/string.h>
-#include <linux/zlib.h>
-#include <asm/bootinfo.h>
-#include <asm/page.h>
-
-/* Information from the linker */
-
-extern int strcmp(const char *s1, const char *s2);
-extern char *avail_ram, *avail_high;
-extern char *end_avail;
-
-unsigned int heap_use, heap_max;
-
-struct memchunk {
-    unsigned int size;
-    struct memchunk *next;
-};
-
-static struct memchunk *freechunks;
-
-static void *zalloc(unsigned size)
-{
-    void *p;
-    struct memchunk **mpp, *mp;
-
-    size = (size + 7) & -8;
-    heap_use += size;
-    if (heap_use > heap_max)
-	heap_max = heap_use;
-    for (mpp = &freechunks; (mp = *mpp) != 0; mpp = &mp->next) {
-	if (mp->size == size) {
-	    *mpp = mp->next;
-	    return mp;
-	}
-    }
-    p = avail_ram;
-    avail_ram += size;
-    if (avail_ram > avail_high)
-	avail_high = avail_ram;
-    if (avail_ram > end_avail) {
-	printf("oops... out of memory\n\r");
-	pause();
-    }
-    return p;
-}
-
-#define HEAD_CRC	2
-#define EXTRA_FIELD	4
-#define ORIG_NAME	8
-#define COMMENT		0x10
-#define RESERVED	0xe0
-
-void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
-{
-	z_stream s;
-	int r, i, flags;
-
-	/* skip header */
-	i = 10;
-	flags = src[3];
-	if (src[2] != Z_DEFLATED || (flags & RESERVED) != 0) {
-		printf("bad gzipped data\n\r");
-		exit();
-	}
-	if ((flags & EXTRA_FIELD) != 0)
-		i = 12 + src[10] + (src[11] << 8);
-	if ((flags & ORIG_NAME) != 0)
-		while (src[i++] != 0)
-			;
-	if ((flags & COMMENT) != 0)
-		while (src[i++] != 0)
-			;
-	if ((flags & HEAD_CRC) != 0)
-		i += 2;
-	if (i >= *lenp) {
-		printf("gunzip: ran out of data in header\n\r");
-		exit();
-	}
-
-	/* Initialize ourself. */
-	s.workspace = zalloc(zlib_inflate_workspacesize());
-	r = zlib_inflateInit2(&s, -MAX_WBITS);
-	if (r != Z_OK) {
-		printf("zlib_inflateInit2 returned %d\n\r", r);
-		exit();
-	}
-	s.next_in = src + i;
-	s.avail_in = *lenp - i;
-	s.next_out = dst;
-	s.avail_out = dstlen;
-	r = zlib_inflate(&s, Z_FINISH);
-	if (r != Z_OK && r != Z_STREAM_END) {
-		printf("inflate returned %d msg: %s\n\r", r, s.msg);
-		exit();
-	}
-	*lenp = s.next_out - (unsigned char *) dst;
-	zlib_inflateEnd(&s);
-}
-
-/* Make a bi_rec in OF.  We need to be passed a name for BI_BOOTLOADER_ID,
- * a machine type for BI_MACHTYPE, and the location where the end of the
- * bootloader is (PROG_START + PROG_SIZE)
- */
-void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
-		unsigned long progend)
-{
-	struct bi_record *rec;
-
-
-	/* leave a 1MB gap then align to the next 1MB boundary */
-	addr = _ALIGN(addr+ (1<<20) - 1, (1<<20));
-	/* oldworld machine seem very unhappy about this. -- Tom */
-	if (addr >= progend)
-		claim(addr, 0x1000, 0);
-
-	rec = (struct bi_record *)addr;
-	rec->tag = BI_FIRST;
-	rec->size = sizeof(struct bi_record);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-
-	rec->tag = BI_BOOTLOADER_ID;
-	sprintf( (char *)rec->data, name);
-	rec->size = sizeof(struct bi_record) + strlen(name) + 1;
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-
-	rec->tag = BI_MACHTYPE;
-	rec->data[0] = mach;
-	rec->data[1] = 1;
-	rec->size = sizeof(struct bi_record) + 2 * sizeof(unsigned long);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-
-	rec->tag = BI_LAST;
-	rec->size = sizeof(struct bi_record);
-	rec = (struct bi_record *)((unsigned long)rec + rec->size);
-}
diff --git a/arch/ppc/boot/openfirmware/dummy.c b/arch/ppc/boot/openfirmware/dummy.c
deleted file mode 100644
index 31dbf45bf99..00000000000
--- a/arch/ppc/boot/openfirmware/dummy.c
+++ /dev/null
@@ -1,4 +0,0 @@
-int main(void)
-{
-	return 0;
-}
diff --git a/arch/ppc/boot/openfirmware/misc.S b/arch/ppc/boot/openfirmware/misc.S
deleted file mode 100644
index ab9e897cadd..00000000000
--- a/arch/ppc/boot/openfirmware/misc.S
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (C) Paul Mackerras 1997.
- *
- * 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.
- */
-	.text
-
-/*
- * Use the BAT2 & 3 registers to map the 1st 16MB of RAM to
- * the address given as the 1st argument.
- */
-	.globl	setup_bats
-setup_bats:
-	mfpvr	5
-	rlwinm	5,5,16,16,31		/* r3 = 1 for 601, 4 for 604 */
-	cmpwi	0,5,1
-	li	0,0
-	bne	4f
-	mtibatl	3,0			/* invalidate BAT first */
-	ori	3,3,4			/* set up BAT registers for 601 */
-	li	4,0x7f
-	mtibatu	2,3
-	mtibatl	2,4
-	oris	3,3,0x80
-	oris	4,4,0x80
-	mtibatu	3,3
-	mtibatl	3,4
-	b	5f
-4:	mtdbatu	3,0			/* invalidate BATs first */
-	mtibatu	3,0
-	ori	3,3,0xff		/* set up BAT registers for 604 */
-	li	4,2
-	mtdbatl	2,4
-	mtdbatu	2,3
-	mtibatl	2,4
-	mtibatu	2,3
-	oris	3,3,0x80
-	oris	4,4,0x80
-	mtdbatl	3,4
-	mtdbatu	3,3
-	mtibatl	3,4
-	mtibatu	3,3
-5:	sync
-	isync
-	blr
-
-/*
- * Flush the dcache and invalidate the icache for a range of addresses.
- *
- * flush_cache(addr, len)
- */
-	.global	flush_cache
-flush_cache:
-	addi	4,4,0x1f	/* len = (len + 0x1f) / 0x20 */
-	rlwinm.	4,4,27,5,31
-	mtctr	4
-	beqlr
-1:	dcbf	0,3
-	icbi	0,3
-	addi	3,3,0x20
-	bdnz	1b
-	sync
-	isync
-	blr
diff --git a/arch/ppc/boot/openfirmware/start.c b/arch/ppc/boot/openfirmware/start.c
deleted file mode 100644
index 1617a26956b..00000000000
--- a/arch/ppc/boot/openfirmware/start.c
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Copyright (C) Paul Mackerras 1997.
- *
- * 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.
- */
-#include <stdarg.h>
-#include "of1275.h"
-
-extern int strlen(const char *s);
-extern void boot(int a1, int a2, void *prom);
-
-phandle stdin;
-phandle stdout;
-phandle stderr;
-
-void printk(char *fmt, ...);
-
-void
-start(int a1, int a2, void *promptr)
-{
-    ofinit(promptr);
-    if (ofstdio(&stdin, &stdout, &stderr))
-	exit();
-
-    boot(a1, a2, promptr);
-    for (;;)
-	exit();
-}
-
-int writestring(void *f, char *ptr, int nb)
-{
-	int w = 0, i;
-	char *ret = "\r";
-
-	for (i = 0; i < nb; ++i) {
-		if (ptr[i] == '\n') {
-			if (i > w) {
-				write(f, ptr + w, i - w);
-				w = i;
-			}
-			write(f, ret, 1);
-		}
-	}
-	if (w < nb)
-		write(f, ptr + w, nb - w);
-	return nb;
-}
-
-int
-putc(int c, void *f)
-{
-    char ch = c;
-
-    return writestring(f, &ch, 1) == 1? c: -1;
-}
-
-int
-putchar(int c)
-{
-    return putc(c, stdout);
-}
-
-int
-fputs(char *str, void *f)
-{
-    int n = strlen(str);
-
-    return writestring(f, str, n) == n? 0: -1;
-}
-
-int
-readchar(void)
-{
-    char ch;
-
-    for (;;) {
-	switch (read(stdin, &ch, 1)) {
-	case 1:
-	    return ch;
-	case -1:
-	    printk("read(stdin) returned -1\n");
-	    return -1;
-	}
-    }
-}
-
-static char line[256];
-static char *lineptr;
-static int lineleft;
-
-int
-getchar(void)
-{