diff options
Diffstat (limited to 'arch/ppc/boot/openfirmware/coffmain.c')
-rw-r--r-- | arch/ppc/boot/openfirmware/coffmain.c | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/arch/ppc/boot/openfirmware/coffmain.c b/arch/ppc/boot/openfirmware/coffmain.c deleted file mode 100644 index 2da8855..0000000 --- a/arch/ppc/boot/openfirmware/coffmain.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 <asm/processor.h> -#include <asm/page.h> - -#include "nonstdio.h" -#include "of1275.h" - -/* Passed from the linker */ -extern char __image_begin, __image_end; -extern char __ramdisk_begin[], __ramdisk_end; -extern char _start, _end; - -extern char image_data[], initrd_data[]; -extern int initrd_len, image_len; -extern unsigned int heap_max; -extern void flush_cache(void *start, unsigned int len); -extern void gunzip(void *, int, unsigned char *, int *); -extern void make_bi_recs(unsigned long addr, char *name, unsigned int mach, - unsigned int progend); -extern void setup_bats(unsigned long start); - -char *avail_ram; -char *begin_avail, *end_avail; -char *avail_high; - -#define SCRATCH_SIZE (128 << 10) - -static char heap[SCRATCH_SIZE]; - -static unsigned long ram_start = 0; -static unsigned long ram_end = 0x1000000; - -static unsigned long prog_start = 0x800000; -static unsigned long prog_size = 0x700000; - -typedef void (*kernel_start_t)(int, int, void *); - -void boot(int a1, int a2, void *prom) -{ - unsigned sa, len; - void *dst; - unsigned char *im; - unsigned initrd_start, initrd_size; - - printf("coffboot starting: loaded at 0x%p\n", &_start); - setup_bats(ram_start); - - initrd_size = (char *)(&__ramdisk_end) - (char *)(&__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, (char *)(&__ramdisk_begin), initrd_size); - memcpy((char *)initrd_start, (char *)(&__ramdisk_begin), initrd_size); - prog_size = initrd_start - prog_start; - } else - a2 = 0xdeadbeef; - - im = (char *)(&__image_begin); - len = (char *)(&__image_end) - (char *)(&__image_begin); - /* claim 4MB starting at PROG_START */ - claim(prog_start, prog_size, 0); - map(prog_start, prog_start, prog_size); - dst = (void *) prog_start; - if (im[0] == 0x1f && im[1] == 0x8b) { - /* set up scratch space */ - begin_avail = avail_high = avail_ram = heap; - end_avail = heap + sizeof(heap); - printf("heap at 0x%p\n", avail_ram); - printf("gunzipping (0x%p <- 0x%p:0x%p)...", dst, im, im+len); - gunzip(dst, prog_size, im, &len); - printf("done %u bytes\n", len); - printf("%u bytes of heap consumed, max in use %u\n", - avail_high - begin_avail, heap_max); - } else { - memmove(dst, im, len); - } - - flush_cache(dst, len); - make_bi_recs(((unsigned long) dst + len), "coffboot", _MACH_Pmac, - (prog_start + prog_size)); - - sa = (unsigned long)prog_start; - printf("start address = 0x%x\n", sa); - - (*(kernel_start_t)sa)(a1, a2, prom); - - printf("returned?\n"); - - pause(); -} |