1*4882a593Smuzhiyun/* 2*4882a593Smuzhiyun * Copyright (c) 2014 Google, Inc 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun.globl early_board_init 8*4882a593Smuzhiyunearly_board_init: 9*4882a593Smuzhiyun /* Enable post codes to EC */ 10*4882a593Smuzhiyun#ifdef CONFIG_EARLY_POST_CROS_EC 11*4882a593Smuzhiyun mov $0x1b, %ecx 12*4882a593Smuzhiyun rdmsr 13*4882a593Smuzhiyun and $0x100, %eax 14*4882a593Smuzhiyun test %eax, %eax 15*4882a593Smuzhiyun je 1f 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun mov $0x8000f8f0, %eax 18*4882a593Smuzhiyun mov $0xcf8, %dx 19*4882a593Smuzhiyun out %eax, (%dx) 20*4882a593Smuzhiyun mov $0xfed1c001, %eax 21*4882a593Smuzhiyun mov $0xcfc, %dx 22*4882a593Smuzhiyun out %eax, (%dx) 23*4882a593Smuzhiyun mov $0xfed1f410, %esp 24*4882a593Smuzhiyun mov (%esp), %eax 25*4882a593Smuzhiyun and $0xfffffffb, %eax 26*4882a593Smuzhiyun mov %eax, (%esp) 27*4882a593Smuzhiyun1: 28*4882a593Smuzhiyun#endif 29*4882a593Smuzhiyun jmp early_board_init_ret 30