diff options
Diffstat (limited to 'arch/i386/cpu/start16.S')
| -rw-r--r-- | arch/i386/cpu/start16.S | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/i386/cpu/start16.S b/arch/i386/cpu/start16.S index ebe5835841..0a5823d3c2 100644 --- a/arch/i386/cpu/start16.S +++ b/arch/i386/cpu/start16.S @@ -22,6 +22,7 @@ * MA 02111-1307 USA */ +#include <asm/global_data.h> #define BOOT_SEG 0xffff0000 /* linear segment of boot code */ #define a32 .byte 0x67; @@ -31,16 +32,20 @@ .code16 .globl start16 start16: - /* First we let the BSP do some early initialization + /* Set the Cold Boot / Hard Reset flag */ + movl $GD_FLG_COLD_BOOT, %ebx + + /* + * First we let the BSP do some early initialization * this code have to map the flash to its final position */ - mov $board_init16_ret, %bp jmp board_init16 +.globl board_init16_ret board_init16_ret: /* Turn of cache (this might require a 486-class CPU) */ movl %cr0, %eax - orl $0x60000000,%eax + orl $0x60000000, %eax movl %eax, %cr0 wbinvd @@ -50,18 +55,15 @@ o32 cs lgdt gdt_ptr /* Now, we enter protected mode */ movl %cr0, %eax - orl $1,%eax + orl $1, %eax movl %eax, %cr0 /* Flush the prefetch queue */ jmp ff ff: - /* Tell 32-bit code it is being entered from hard-reset */ - movw $0x0001, %bx - /* Finally jump to the 32bit initialization code */ movw $code32start, %ax - movw %ax,%bp + movw %ax, %bp o32 cs ljmp *(%bp) /* 48-bit far pointer */ |