1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/* by yhlu 6.2005
moved from nrv2v.c and some lines from crt0.S
2006/05/02 - stepan: move nrv2b to an extra file.
*/
#if CONFIG_COMPRESS
#define ENDIAN 0
#define BITSIZE 32
#include "lib/nrv2b.c"
#endif
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);
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
print_debug("Jumping to coreboot.\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"
);
}
|
