-/* by yhlu 6.2005
- moved from nrv2v.c and some lines from crt0.S
-*/
-#ifndef ENDIAN
-#define ENDIAN 0
-#endif
-#ifndef BITSIZE
-#define BITSIZE 32
-#endif
-
-#define GETBIT_8(bb, src, ilen) \
- (((bb = bb & 0x7f ? bb*2 : ((unsigned)src[ilen++]*2+1)) >> 8) & 1)
-
-#define GETBIT_LE16(bb, src, ilen) \
- (bb*=2,bb&0xffff ? (bb>>16)&1 : (ilen+=2,((bb=(src[ilen-2]+src[ilen-1]*256u)*2+1)>>16)&1))
-
-#define GETBIT_LE32(bb, src, ilen) \
- (bc > 0 ? ((bb>>--bc)&1) : (bc=31,\
- bb=*(const uint32_t *)((src)+ilen),ilen+=4,(bb>>31)&1))
-
-#if ENDIAN == 0 && BITSIZE == 8
-#define GETBIT(bb, src, ilen) GETBIT_8(bb, src, ilen)
-#endif
-#if ENDIAN == 0 && BITSIZE == 16
-#define GETBIT(bb, src, ilen) GETBIT_LE16(bb, src, ilen)
-#endif
-#if ENDIAN == 0 && BITSIZE == 32
-#define GETBIT(bb, src, ilen) GETBIT_LE32(bb, src, ilen)
-#endif
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009-2010 coresystems GmbH
+ * Written by Patrick Georgi <patrick.georgi@coresystems.de>
+ * for coresystems GmbH
+ *
+ * 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; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+void cbfs_and_run_core(const char *, unsigned ebp);
static void copy_and_run(unsigned cpu_reset)
{
- uint8_t *src, *dst;
- unsigned long dst_len;
- unsigned long ilen = 0, olen = 0, last_m_off = 1;
- uint32_t bb = 0;
- unsigned bc = 0;
-
- print_debug("Copying LinuxBIOS to ram.\r\n");
-
-#if !CONFIG_COMPRESS
- __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
-
- __asm__ volatile (
- "leal 4+_liseg, %0\n\t"
- "leal _iseg, %1\n\t"
- : "=a" (src) , "=b" (dst)
- );
-
-#if CONFIG_USE_INIT
- printk_debug("src=%08x\r\n",src);
- printk_debug("dst=%08x\r\n",dst);
-#else
- print_debug("src="); print_debug_hex32(src); print_debug("\r\n");
- print_debug("dst="); print_debug_hex32(dst); print_debug("\r\n");
-#endif
-
-// dump_mem(src, src+0x100);
-
- for(;;) {
- unsigned int m_off, m_len;
- while(GETBIT(bb, src, ilen)) {
- dst[olen++] = src[ilen++];
- }
- m_off = 1;
- do {
- m_off = m_off*2 + GETBIT(bb, src, ilen);
- } while (!GETBIT(bb, src, ilen));
- if (m_off == 2)
- {
- m_off = last_m_off;
- }
- else
- {
- m_off = (m_off - 3)*256 + src[ilen++];
- if(m_off == 0xffffffffU)
- break;
- last_m_off = ++m_off;
- }
- m_len = GETBIT(bb, src, ilen);
- m_len = m_len*2 + GETBIT(bb, src, ilen);
- if (m_len == 0)
- {
- m_len++;
- do {
- m_len = m_len*2 + GETBIT(bb, src, ilen);
- } while(!GETBIT(bb, src, ilen));
- m_len += 2;
- }
- m_len += (m_off > 0xd00);
- {
- const uint8_t *m_pos;
- m_pos = dst + olen - m_off;
- dst[olen++] = *m_pos++;
- do {
- dst[olen++] = *m_pos++;
- } while(--m_len > 0);
- }
- }
-#endif
-// dump_mem(dst, dst+0x100);
-#if CONFIG_USE_INIT
- printk_debug("linxbios_ram.bin length = %08x\r\n", olen);
-#else
- print_debug("linxbios_ram.bin length = "); print_debug_hex32(olen); print_debug("\r\n");
-#endif
- print_debug("Jumping to LinuxBIOS.\r\n");
-
- 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;
+ cbfs_and_run_core(CONFIG_CBFS_PREFIX "/coreboot_ram", cpu_reset);
}
projects / coreboot.git / blobdiff