/* | |
* Copyright (c) 2014 Google, Inc | |
* | |
* SPDX-License-Identifier: GPL-2.0+ | |
*/ | |
.globl early_board_init | |
early_board_init: | |
/* Enable post codes to EC */ | |
#ifdef CONFIG_EARLY_POST_CROS_EC | |
mov $0x1b, %ecx | |
rdmsr | |
and $0x100, %eax | |
test %eax, %eax | |
je 1f | |
mov $0x8000f8f0, %eax | |
mov $0xcf8, %dx | |
out %eax, (%dx) | |
mov $0xfed1c001, %eax | |
mov $0xcfc, %dx | |
out %eax, (%dx) | |
mov $0xfed1f410, %esp | |
mov (%esp), %eax | |
and $0xfffffffb, %eax | |
mov %eax, (%esp) | |
1: | |
#endif | |
jmp early_board_init_ret |