1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (c) 2014 Google, Inc 4 */ 5 6 .globl early_board_init 7 early_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) 26 1: 27 #endif 28 jmp early_board_init_ret 29
