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#if CONFIG_LOGICAL_CPUS && \
(defined(CONFIG_BOOTBLOCK_NORTHBRIDGE_INIT) || defined(CONFIG_BOOTBLOCK_SOUTHBRIDGE_INIT))
#include <cpu/x86/lapic/boot_cpu.c>
#else
#define boot_cpu(x) 1
#endif
#ifdef CONFIG_BOOTBLOCK_NORTHBRIDGE_INIT
#include CONFIG_BOOTBLOCK_NORTHBRIDGE_INIT
#else
static void bootblock_northbridge_init(void) { }
#endif
#ifdef CONFIG_BOOTBLOCK_SOUTHBRIDGE_INIT
#include CONFIG_BOOTBLOCK_SOUTHBRIDGE_INIT
#else
static void bootblock_southbridge_init(void) { }
#endif
static unsigned long findstage(char* target)
{
unsigned long entry;
asm volatile (
"mov $1f, %%esp\n\t"
"jmp walkcbfs\n\t"
"1:\n\t" : "=a" (entry) : "S" (target) : "ebx", "ecx", "edi", "esp");
return entry;
}
static void call(unsigned long addr, unsigned long bist)
{
asm volatile ("jmp %0\n\t" : : "r" (addr), "a" (bist));
}
static void main(unsigned long bist)
{
if (boot_cpu()) {
bootblock_northbridge_init();
bootblock_southbridge_init();
}
const char* target1 = "fallback/romstage";
unsigned long entry;
entry = findstage(target1);
if (entry) call(entry, bist);
asm volatile ("1:\n\thlt\n\tjmp 1b\n\t");
}
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