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/* by yhlu 6.2005
moved from nrv2v.c and some lines from crt0.S
2006/05/02 - stepan: move nrv2b to an extra file.
*/
static inline void print_debug_cp_run(const char *strval, uint32_t val)
{
#if CONFIG_USE_PRINTK_IN_CAR
printk_debug("%s%08x\r\n", strval, val);
#else
print_debug(strval); print_debug_hex32(val); print_debug("\r\n");
#endif
}
#if CONFIG_COMPRESS
#define ENDIAN 0
#define BITSIZE 32
#include "lib/nrv2b.c"
#endif
static void copy_and_run(void)
{
uint8_t *src, *dst;
unsigned long ilen, olen;
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" (olen)
);
memcpy(dst, src, olen);
#else
__asm__ volatile (
"leal _liseg, %0\n\t"
"leal _iseg, %1\n\t"
: "=a" (src) , "=b" (dst)
);
print_debug_cp_run("src=",(uint32_t)src);
print_debug_cp_run("dst=",(uint32_t)dst);
// dump_mem(src, src+0x100);
olen = unrv2b(src, dst, &ilen);
print_debug_cp_run("linxbios_ram.nrv2b length = ", ilen);
#endif
// dump_mem(dst, dst+0x100);
print_debug_cp_run("linxbios_ram.bin length = ", olen);
print_debug("Jumping to LinuxBIOS.\r\n");
__asm__ volatile (
"xorl %ebp, %ebp\n\t" /* cpu_reset for hardwaremain dummy */
"cli\n\t"
"leal _iseg, %edi\n\t"
"jmp *%edi\n\t"
);
}
#if CONFIG_AP_CODE_IN_CAR == 1
static void copy_and_run_ap_code_in_car(unsigned ret_addr)
{
uint8_t *src, *dst;
unsigned long ilen, olen;
// print_debug("Copying LinuxBIOS AP code to CAR.\r\n");
#if !CONFIG_COMPRESS
__asm__ volatile (
"leal _liseg_apc, %0\n\t"
"leal _iseg_apc, %1\n\t"
"leal _eiseg_apc, %2\n\t"
"subl %1, %2\n\t"
: "=a" (src), "=b" (dst), "=c" (olen)
);
memcpy(dst, src, olen);
#else
__asm__ volatile (
"leal _liseg_apc, %0\n\t"
"leal _iseg_apc, %1\n\t"
: "=a" (src) , "=b" (dst)
);
// print_debug_cp_run("src=",(uint32_t)src);
// print_debug_cp_run("dst=",(uint32_t)dst);
// dump_mem(src, src+0x100);
olen = unrv2b(src, dst, &ilen);
// print_debug_cp_run("linxbios_apc.nrv2b length = ", ilen);
#endif
// dump_mem(dst, dst+0x100);
// print_debug_cp_run("linxbios_apc.bin length = ", olen);
// print_debug("Jumping to LinuxBIOS AP code in CAR.\r\n");
__asm__ volatile (
"movl %0, %%ebp\n\t" /* cpu_reset for hardwaremain dummy */
"cli\n\t"
"leal _iseg_apc, %%edi\n\t"
"jmp *%%edi\n\t"
:: "a"(ret_addr)
);
}
#endif
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