• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (c) 2014 Google, Inc
4 */
5
6.globl early_board_init
7early_board_init:
8	/* Enable post codes to EC */
9#ifdef CONFIG_EARLY_POST_CROS_EC
10	mov    $0x1b, %ecx
11	rdmsr
12	and    $0x100, %eax
13	test   %eax, %eax
14	je     1f
15
16	mov    $0x8000f8f0, %eax
17	mov    $0xcf8, %dx
18	out    %eax, (%dx)
19	mov    $0xfed1c001, %eax
20	mov    $0xcfc, %dx
21	out    %eax, (%dx)
22	mov    $0xfed1f410, %esp
23	mov    (%esp), %eax
24	and    $0xfffffffb, %eax
25	mov    %eax, (%esp)
261:
27#endif
28	jmp	early_board_init_ret
29