diff options
Diffstat (limited to 'arch/x86/cpu/start.S')
| -rw-r--r-- | arch/x86/cpu/start.S | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/x86/cpu/start.S b/arch/x86/cpu/start.S index 7ef8b88..a0dec39 100644 --- a/arch/x86/cpu/start.S +++ b/arch/x86/cpu/start.S @@ -41,14 +41,18 @@ _x86boot_start: wbinvd /* Tell 32-bit code it is being entered from an in-RAM copy */ - movw $GD_FLG_WARM_BOOT, %bx + movl $GD_FLG_WARM_BOOT, %ebx jmp 1f + + /* Add a way for tools to discover the _start entry point */ + .align 4 + .long 0x12345678 _start: /* * This is the 32-bit cold-reset entry point, coming from start16. - * Set %bx to 0 to indicate this. + * Set %ebx to GD_FLG_COLD_BOOT to indicate this. */ - movw $GD_FLG_COLD_BOOT, %bx + movl $GD_FLG_COLD_BOOT, %ebx 1: /* Save BIST */ movl %eax, %ebp |