summaryrefslogtreecommitdiffstats
path: root/arch/ppc/boot/openfirmware/chrpmain.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/ppc/boot/openfirmware/chrpmain.c')
-rw-r--r--arch/ppc/boot/openfirmware/chrpmain.c101
1 files changed, 0 insertions, 101 deletions
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();
-}