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