27 lines
844 B
C
27 lines
844 B
C
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/*
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* This file is part of the coreboot project.
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/acpi.h>
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#include <soc/southbridge.h>
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#include <amdblocks/acpimmio.h>
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#include <security/vboot/vboot_common.h>
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#include <security/vboot/vbnv.h>
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#include <pc80/mc146818rtc.h>
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int vbnv_cmos_failed(void)
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{
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/* If CMOS power has failed, the century will be set to 0xff */
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return cmos_read(RTC_CLK_ALTCENTURY) == 0xff;
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}
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