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-rw-r--r--arch/ppc/boot/openfirmware/Makefile109
-rw-r--r--arch/ppc/boot/openfirmware/chrpmain.c101
-rw-r--r--arch/ppc/boot/openfirmware/common.c146
-rw-r--r--arch/ppc/boot/openfirmware/dummy.c4
-rw-r--r--arch/ppc/boot/openfirmware/misc.S67
-rw-r--r--arch/ppc/boot/openfirmware/start.c172
6 files changed, 0 insertions, 599 deletions
diff --git a/arch/ppc/boot/openfirmware/Makefile b/arch/ppc/boot/openfirmware/Makefile
deleted file mode 100644
index 66b739743759..000000000000
--- a/arch/ppc/boot/openfirmware/Makefile
+++ /dev/null
@@ -1,109 +0,0 @@
1# Makefile for making bootable images on various OpenFirmware machines.
2#
3# This file is included by the global makefile so that you can add your own
4# architecture-specific flags and dependencies.
5#
6# Paul Mackerras January 1997
7# XCOFF bootable images for PowerMacs
8# Geert Uytterhoeven September 1997
9# ELF bootable iamges for CHRP machines.
10# Tom Rini January 2001
11# Cleaned up, moved into arch/ppc/boot/pmac
12# Tom Rini July/August 2002
13# Merged 'chrp' and 'pmac' into 'openfirmware', and cleaned up the
14# rules.
15
16zImage.initrd znetboot.initrd: del-ramdisk-sec := -R .ramdisk
17zImage.initrd znetboot.initrd: initrd := .initrd
18
19
20boot := arch/ppc/boot
21common := $(boot)/common
22utils := $(boot)/utils
23bootlib := $(boot)/lib
24of1275 := $(boot)/of1275
25images := $(boot)/images
26
27CHRP_LD_ARGS := -T $(srctree)/$(boot)/ld.script -e _start -Ttext 0x00800000
28
29COMMONOBJS := start.o misc.o common.o
30CHRPOBJS := crt0.o $(COMMONOBJS) chrpmain.o
31
32targets := $(CHRPOBJS) dummy.o
33CHRPOBJS := $(addprefix $(obj)/, $(CHRPOBJS))
34
35LIBS := lib/lib.a $(bootlib)/lib.a $(of1275)/lib.a $(common)/lib.a
36
37ifdef CONFIG_SMP
38END := .smp
39endif
40ifdef CONFIG_PPC64BRIDGE
41END += .64
42endif
43
44
45$(images)/ramdisk.image.gz:
46 @echo ' MISSING $@'
47 @echo ' RAM disk image must be provided separately'
48 @/bin/false
49
50quiet_cmd_genimage = GEN $@
51 cmd_genimage = $(OBJCOPY) -R .comment \
52 --add-section=.image=$(images)/vmlinux.gz \
53 --set-section-flags=.image=contents,alloc,load,readonly,data $< $@
54
55targets += image.o
56$(obj)/image.o: $(obj)/dummy.o $(images)/vmlinux.gz FORCE
57 $(call if_changed,genimage)
58
59# Place the ramdisk in the initrd image.
60quiet_cmd_genimage-initrd = GEN $@
61 cmd_genimage-initrd = $(OBJCOPY) $< $@ \
62 --add-section=.ramdisk=$(images)/ramdisk.image.gz \
63 --set-section-flags=.ramdisk=contents,alloc,load,readonly,data
64targets += image.initrd.o
65$(obj)/image.initrd.o: $(obj)/image.o $(images)/ramdisk.image.gz FORCE
66 $(call if_changed,genimage-initrd)
67
68
69targets += crt0.o
70$(obj)/crt0.o: $(common)/crt0.S FORCE
71 $(call if_changed_dep,as_o_S)
72
73quiet_cmd_gen-chrp = CHRP $@
74 cmd_gen-chrp = $(LD) $(CHRP_LD_ARGS) -o $@ $(CHRPOBJS) $< $(LIBS) && \
75 $(OBJCOPY) $@ $@ -R .comment $(del-ramdisk-sec)
76
77$(images)/zImage.chrp: $(obj)/image.o $(CHRPOBJS) $(LIBS) \
78 $(srctree)/$(boot)/ld.script
79 $(call cmd,gen-chrp)
80$(images)/zImage.initrd.chrp: $(obj)/image.initrd.o $(CHRPOBJS) $(LIBS) \
81 $(srctree)/$(boot)/ld.script
82 $(call cmd,gen-chrp)
83
84quiet_cmd_addnote = ADDNOTE $@
85 cmd_addnote = cat $< > $@ && $(utils)/addnote $@
86$(images)/zImage.chrp-rs6k $(images)/zImage.initrd.chrp-rs6k: \
87 %-rs6k: %
88 $(call cmd,addnote)
89
90# The targets used on the make command-line
91
92PHONY += zImage zImage.initrd
93zImage: $(images)/zImage.chrp \
94 $(images)/zImage.chrp-rs6k
95 @echo ' kernel: $@ is ready ($<)'
96zImage.initrd: $(images)/zImage.initrd.chrp \
97 $(images)/zImage.initrd.chrp-rs6k
98 @echo ' kernel: $@ is ready ($<)'
99
100TFTPIMAGE := /tftpboot/zImage
101
102PHONY += znetboot znetboot.initrd
103znetboot: $(images)/zImage.chrp
104 cp $(images)/zImage.chrp $(TFTPIMAGE).chrp$(END)
105 @echo ' kernel: $@ is ready ($<)'
106znetboot.initrd:$(images)/zImage.initrd.chrp
107 cp $(images)/zImage.initrd.chrp $(TFTPIMAGE).chrp$(END)
108 @echo ' kernel: $@ is ready ($<)'
109
diff --git a/arch/ppc/boot/openfirmware/chrpmain.c b/arch/ppc/boot/openfirmware/chrpmain.c
deleted file mode 100644
index 245dbd9fc120..000000000000
--- a/arch/ppc/boot/openfirmware/chrpmain.c
+++ /dev/null
@@ -1,101 +0,0 @@
1/*
2 * Copyright (C) Paul Mackerras 1997.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9#include <linux/string.h>
10#include "nonstdio.h"
11#include "of1275.h"
12#include <asm/processor.h>
13#include <asm/page.h>
14
15/* Passed from the linker */
16extern char __image_begin, __image_end;
17extern char __ramdisk_begin, __ramdisk_end;
18extern char _start, _end;
19
20extern unsigned int heap_max;
21extern void flush_cache(void *, unsigned long);
22extern void gunzip(void *, int, unsigned char *, int *);
23extern void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
24 unsigned int progend);
25
26char *avail_ram;
27char *begin_avail, *end_avail;
28char *avail_high;
29
30#define RAM_START 0x00000000
31#define RAM_END (64<<20)
32
33#define BOOT_START ((unsigned long)_start)
34#define BOOT_END ((unsigned long)(_end + 0xFFF) & ~0xFFF)
35
36#define RAM_FREE ((unsigned long)(_end+0x1000)&~0xFFF)
37#define PROG_START 0x00010000
38#define PROG_SIZE 0x007f0000 /* 8MB */
39
40#define SCRATCH_SIZE (128 << 10)
41
42static char scratch[SCRATCH_SIZE]; /* 128k of scratch space for gunzip */
43
44typedef void (*kernel_start_t)(int, int, void *, unsigned int, unsigned int);
45
46void
47boot(int a1, int a2, void *prom)
48{
49 unsigned sa, len;
50 void *dst;
51 unsigned char *im;
52 unsigned int initrd_size, initrd_start;
53
54 printf("chrpboot starting: loaded at 0x%p\n\r", &_start);
55
56 initrd_size = &__ramdisk_end - &__ramdisk_begin;
57 if (initrd_size) {
58 initrd_start = (RAM_END - initrd_size) & ~0xFFF;
59 a1 = initrd_start;
60 a2 = initrd_size;
61 claim(initrd_start, RAM_END - initrd_start, 0);
62 printf("initial ramdisk moving 0x%x <- 0x%p (%x bytes)\n\r",
63 initrd_start, &__ramdisk_begin, initrd_size);
64 memcpy((char *)initrd_start, &__ramdisk_begin, initrd_size);
65 } else {
66 initrd_start = 0;
67 initrd_size = 0;
68 a2 = 0xdeadbeef;
69 }
70
71 im = &__image_begin;
72 len = &__image_end - &__image_begin;
73 /* claim 4MB starting at PROG_START */
74 claim(PROG_START, PROG_SIZE - PROG_START, 0);
75 dst = (void *) PROG_START;
76 if (im[0] == 0x1f && im[1] == 0x8b) {
77 avail_ram = scratch;
78 begin_avail = avail_high = avail_ram;
79 end_avail = scratch + sizeof(scratch);
80 printf("gunzipping (0x%p <- 0x%p:0x%p)...", dst, im, im+len);
81 gunzip(dst, PROG_SIZE - PROG_START, im, &len);
82 printf("done %u bytes\n\r", len);
83 printf("%u bytes of heap consumed, max in use %u\n\r",
84 avail_high - begin_avail, heap_max);
85 } else {
86 memmove(dst, im, len);
87 }
88
89 flush_cache(dst, len);
90 make_bi_recs(((unsigned long) dst + len), "chrpboot", _MACH_chrp,
91 (PROG_START + PROG_SIZE));
92
93 sa = PROG_START;
94 printf("start address = 0x%x\n\r", sa);
95
96 (*(kernel_start_t)sa)(a1, a2, prom, initrd_start, initrd_size);
97
98 printf("returned?\n\r");
99
100 pause();
101}
diff --git a/arch/ppc/boot/openfirmware/common.c b/arch/ppc/boot/openfirmware/common.c
deleted file mode 100644
index 0f46756a903e..000000000000
--- a/arch/ppc/boot/openfirmware/common.c
+++ /dev/null
@@ -1,146 +0,0 @@
1/*
2 * Copyright (C) Paul Mackerras 1997.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9
10#include "nonstdio.h"
11#include "of1275.h"
12#include <linux/string.h>
13#include <linux/zlib.h>
14#include <asm/bootinfo.h>
15#include <asm/page.h>
16
17/* Information from the linker */
18
19extern int strcmp(const char *s1, const char *s2);
20extern char *avail_ram, *avail_high;
21extern char *end_avail;
22
23unsigned int heap_use, heap_max;
24
25struct memchunk {
26 unsigned int size;
27 struct memchunk *next;
28};
29
30static struct memchunk *freechunks;
31
32static void *zalloc(unsigned size)
33{
34 void *p;
35 struct memchunk **mpp, *mp;
36
37 size = (size + 7) & -8;
38 heap_use += size;
39 if (heap_use > heap_max)
40 heap_max = heap_use;
41 for (mpp = &freechunks; (mp = *mpp) != 0; mpp = &mp->next) {
42 if (mp->size == size) {
43 *mpp = mp->next;
44 return mp;
45 }
46 }
47 p = avail_ram;
48 avail_ram += size;
49 if (avail_ram > avail_high)
50 avail_high = avail_ram;
51 if (avail_ram > end_avail) {
52 printf("oops... out of memory\n\r");
53 pause();
54 }
55 return p;
56}
57
58#define HEAD_CRC 2
59#define EXTRA_FIELD 4
60#define ORIG_NAME 8
61#define COMMENT 0x10
62#define RESERVED 0xe0
63
64void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
65{
66 z_stream s;
67 int r, i, flags;
68
69 /* skip header */
70 i = 10;
71 flags = src[3];
72 if (src[2] != Z_DEFLATED || (flags & RESERVED) != 0) {
73 printf("bad gzipped data\n\r");
74 exit();
75 }
76 if ((flags & EXTRA_FIELD) != 0)
77 i = 12 + src[10] + (src[11] << 8);
78 if ((flags & ORIG_NAME) != 0)
79 while (src[i++] != 0)
80 ;
81 if ((flags & COMMENT) != 0)
82 while (src[i++] != 0)
83 ;
84 if ((flags & HEAD_CRC) != 0)
85 i += 2;
86 if (i >= *lenp) {
87 printf("gunzip: ran out of data in header\n\r");
88 exit();
89 }
90
91 /* Initialize ourself. */
92 s.workspace = zalloc(zlib_inflate_workspacesize());
93 r = zlib_inflateInit2(&s, -MAX_WBITS);
94 if (r != Z_OK) {
95 printf("zlib_inflateInit2 returned %d\n\r", r);
96 exit();
97 }
98 s.next_in = src + i;
99 s.avail_in = *lenp - i;
100 s.next_out = dst;
101 s.avail_out = dstlen;
102 r = zlib_inflate(&s, Z_FINISH);
103 if (r != Z_OK && r != Z_STREAM_END) {
104 printf("inflate returned %d msg: %s\n\r", r, s.msg);
105 exit();
106 }
107 *lenp = s.next_out - (unsigned char *) dst;
108 zlib_inflateEnd(&s);
109}
110
111/* Make a bi_rec in OF. We need to be passed a name for BI_BOOTLOADER_ID,
112 * a machine type for BI_MACHTYPE, and the location where the end of the
113 * bootloader is (PROG_START + PROG_SIZE)
114 */
115void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
116 unsigned long progend)
117{
118 struct bi_record *rec;
119
120
121 /* leave a 1MB gap then align to the next 1MB boundary */
122 addr = _ALIGN(addr+ (1<<20) - 1, (1<<20));
123 /* oldworld machine seem very unhappy about this. -- Tom */
124 if (addr >= progend)
125 claim(addr, 0x1000, 0);
126
127 rec = (struct bi_record *)addr;
128 rec->tag = BI_FIRST;
129 rec->size = sizeof(struct bi_record);
130 rec = (struct bi_record *)((unsigned long)rec + rec->size);
131
132 rec->tag = BI_BOOTLOADER_ID;
133 sprintf( (char *)rec->data, name);
134 rec->size = sizeof(struct bi_record) + strlen(name) + 1;
135 rec = (struct bi_record *)((unsigned long)rec + rec->size);
136
137 rec->tag = BI_MACHTYPE;
138 rec->data[0] = mach;
139 rec->data[1] = 1;
140 rec->size = sizeof(struct bi_record) + 2 * sizeof(unsigned long);
141 rec = (struct bi_record *)((unsigned long)rec + rec->size);
142
143 rec->tag = BI_LAST;
144 rec->size = sizeof(struct bi_record);
145 rec = (struct bi_record *)((unsigned long)rec + rec->size);
146}
diff --git a/arch/ppc/boot/openfirmware/dummy.c b/arch/ppc/boot/openfirmware/dummy.c
deleted file mode 100644
index 31dbf45bf99c..000000000000
--- a/arch/ppc/boot/openfirmware/dummy.c
+++ /dev/null
@@ -1,4 +0,0 @@
1int main(void)
2{
3 return 0;
4}
diff --git a/arch/ppc/boot/openfirmware/misc.S b/arch/ppc/boot/openfirmware/misc.S
deleted file mode 100644
index ab9e897cadd0..000000000000
--- a/arch/ppc/boot/openfirmware/misc.S
+++ /dev/null
@@ -1,67 +0,0 @@
1/*
2 * Copyright (C) Paul Mackerras 1997.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9 .text
10
11/*
12 * Use the BAT2 & 3 registers to map the 1st 16MB of RAM to
13 * the address given as the 1st argument.
14 */
15 .globl setup_bats
16setup_bats:
17 mfpvr 5
18 rlwinm 5,5,16,16,31 /* r3 = 1 for 601, 4 for 604 */
19 cmpwi 0,5,1
20 li 0,0
21 bne 4f
22 mtibatl 3,0 /* invalidate BAT first */
23 ori 3,3,4 /* set up BAT registers for 601 */
24 li 4,0x7f
25 mtibatu 2,3
26 mtibatl 2,4
27 oris 3,3,0x80
28 oris 4,4,0x80
29 mtibatu 3,3
30 mtibatl 3,4
31 b 5f
324: mtdbatu 3,0 /* invalidate BATs first */
33 mtibatu 3,0
34 ori 3,3,0xff /* set up BAT registers for 604 */
35 li 4,2
36 mtdbatl 2,4
37 mtdbatu 2,3
38 mtibatl 2,4
39 mtibatu 2,3
40 oris 3,3,0x80
41 oris 4,4,0x80
42 mtdbatl 3,4
43 mtdbatu 3,3
44 mtibatl 3,4
45 mtibatu 3,3
465: sync
47 isync
48 blr
49
50/*
51 * Flush the dcache and invalidate the icache for a range of addresses.
52 *
53 * flush_cache(addr, len)
54 */
55 .global flush_cache
56flush_cache:
57 addi 4,4,0x1f /* len = (len + 0x1f) / 0x20 */
58 rlwinm. 4,4,27,5,31
59 mtctr 4
60 beqlr
611: dcbf 0,3
62 icbi 0,3
63 addi 3,3,0x20
64 bdnz 1b
65 sync
66 isync
67 blr
diff --git a/arch/ppc/boot/openfirmware/start.c b/arch/ppc/boot/openfirmware/start.c
deleted file mode 100644
index 1617a26956bf..000000000000
--- a/arch/ppc/boot/openfirmware/start.c
+++ /dev/null
@@ -1,172 +0,0 @@
1/*
2 * Copyright (C) Paul Mackerras 1997.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
9#include <stdarg.h>
10#include "of1275.h"
11
12extern int strlen(const char *s);
13extern void boot(int a1, int a2, void *prom);
14
15phandle stdin;
16phandle stdout;
17phandle stderr;
18
19void printk(char *fmt, ...);
20
21void
22start(int a1, int a2, void *promptr)
23{
24 ofinit(promptr);
25 if (ofstdio(&stdin, &stdout, &stderr))
26 exit();
27
28 boot(a1, a2, promptr);
29 for (;;)
30 exit();
31}
32
33int writestring(void *f, char *ptr, int nb)
34{
35 int w = 0, i;
36 char *ret = "\r";
37
38 for (i = 0; i < nb; ++i) {
39 if (ptr[i] == '\n') {
40 if (i > w) {
41 write(f, ptr + w, i - w);
42 w = i;
43 }
44 write(f, ret, 1);
45 }
46 }
47 if (w < nb)
48 write(f, ptr + w, nb - w);
49 return nb;
50}
51
52int
53putc(int c, void *f)
54{
55 char ch = c;
56
57 return writestring(f, &ch, 1) == 1? c: -1;
58}
59
60int
61putchar(int c)
62{
63 return putc(c, stdout);
64}
65
66int
67fputs(char *str, void *f)
68{
69 int n = strlen(str);
70
71 return writestring(f, str, n) == n? 0: -1;
72}
73
74int
75readchar(void)
76{
77 char ch;
78
79 for (;;) {
80 switch (read(stdin, &ch, 1)) {
81 case 1:
82 return ch;
83 case -1:
84 printk("read(stdin) returned -1\n");
85 return -1;
86 }
87 }
88}
89
90static char line[256];
91static char *lineptr;
92static int lineleft;
93
94int
95getchar(void)
96{
97 int c;
98
99 if (lineleft == 0) {
100 lineptr = line;
101 for (;;) {
102 c = readchar();
103 if (c == -1 || c == 4)
104 break;
105 if (c == '\r' || c == '\n') {
106 *lineptr++ = '\n';
107 putchar('\n');
108 break;
109 }
110 switch (c) {
111 case 0177:
112 case '\b':
113 if (lineptr > line) {
114 putchar('\b');
115 putchar(' ');
116 putchar('\b');
117 --lineptr;
118 }
119 break;
120 case 'U' & 0x1F:
121 while (lineptr > line) {
122 putchar('\b');
123 putchar(' ');
124 putchar('\b');
125 --lineptr;
126 }
127 break;
128 default:
129 if (lineptr >= &line[sizeof(line) - 1])
130 putchar('\a');
131 else {
132 putchar(c);
133 *lineptr++ = c;
134 }
135 }
136 }
137 lineleft = lineptr - line;
138 lineptr = line;
139 }
140 if (lineleft == 0)
141 return -1;
142 --lineleft;
143 return *lineptr++;
144}
145
146extern int vsprintf(char *buf, const char *fmt, va_list args);
147static char sprint_buf[1024];
148
149void
150printk(char *fmt, ...)
151{
152 va_list args;
153 int n;
154
155 va_start(args, fmt);
156 n = vsprintf(sprint_buf, fmt, args);
157 va_end(args);
158 writestring(stdout, sprint_buf, n);
159}
160
161int
162printf(char *fmt, ...)
163{
164 va_list args;
165 int n;
166
167 va_start(args, fmt);
168 n = vsprintf(sprint_buf, fmt, args);
169 va_end(args);
170 writestring(stdout, sprint_buf, n);
171 return n;
172}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 04:03:20 -0500