diff options
Diffstat (limited to 'src/cpu/x86')
| -rw-r--r-- | src/cpu/x86/car/copy_and_run.c | 84 |
1 files changed, 12 insertions, 72 deletions
diff --git a/src/cpu/x86/car/copy_and_run.c b/src/cpu/x86/car/copy_and_run.c index 7a070ee648..14fe83d667 100644 --- a/src/cpu/x86/car/copy_and_run.c +++ b/src/cpu/x86/car/copy_and_run.c @@ -1,83 +1,23 @@ -/* by yhlu 6.2005 - moved from nrv2v.c and some lines from crt0.S - 2006/05/02 - stepan: move nrv2b to an extra file. +/* Copyright (C) 2009 coresystems GmbH + (Written by Patrick Georgi <patrick.georgi@coresystems.de> for coresystems GmbH */ -#if CONFIG_COMPRESS -#define ENDIAN 0 -#define BITSIZE 32 -#include "lib/nrv2b.c" -#endif +void copy_and_run_core(u8 *src, u8 *dst, unsigned long ilen, unsigned ebp); + +extern u8 _liseg, _iseg, _eiseg; static void copy_and_run(unsigned cpu_reset) { uint8_t *src, *dst; -#if !CONFIG_COMPRESS - unsigned long dst_len; -#endif - unsigned long ilen, olen; - - -#if !CONFIG_COMPRESS - print_debug("Copying coreboot to RAM.\r\n"); - __asm__ volatile ( - "leal _liseg, %0\n\t" - "leal _iseg, %1\n\t" - "leal _eiseg, %2\n\t" - "subl %1, %2\n\t" - : "=a" (src), "=b" (dst), "=c" (dst_len) - ); - memcpy(src, dst, dst_len); -#else - print_debug("Uncompressing coreboot to RAM.\r\n"); - - __asm__ volatile ( - "leal _liseg, %0\n\t" - "leal _iseg, %1\n\t" - : "=a" (src) , "=b" (dst) - ); - -#if CONFIG_USE_INIT - printk_spew("src=%08x\r\n",src); - printk_spew("dst=%08x\r\n",dst); -#else - print_spew("src="); print_spew_hex32((uint32_t)src); print_spew("\r\n"); - print_spew("dst="); print_spew_hex32((uint32_t)dst); print_spew("\r\n"); -#endif - -// dump_mem(src, src+0x100); + unsigned long ilen; - olen = unrv2b(src, dst, &ilen); -#endif -// dump_mem(dst, dst+0x100); -#if CONFIG_USE_INIT - printk_spew("coreboot_ram.bin length = %08x\r\n", olen); -#else - print_spew("coreboot_ram.bin length = "); print_spew_hex32(olen); print_spew("\r\n"); -#endif -#ifdef CONFIG_DEACTIVATE_CAR - print_debug("Deactivating CAR"); -#include CONFIG_DEACTIVATE_CAR_FILE - print_debug(" - Done.\r\n"); -#endif - print_debug("Jumping to coreboot.\r\n"); + src = &_liseg; + dst = &_iseg; + ilen = &_eiseg - dst; - if(cpu_reset == 1 ) { - __asm__ volatile ( - "movl $0xffffffff, %ebp\n\t" - ); - } - else { - __asm__ volatile ( - "xorl %ebp, %ebp\n\t" - ); - } - - __asm__ volatile ( - "cli\n\t" - "leal _iseg, %edi\n\t" - "jmp *%edi\n\t" - ); + if (cpu_reset == 1) cpu_reset = -1; + else cpu_reset = 0; + copy_and_run_core(src, dst, ilen, cpu_reset); } |