vbnv_cmos.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <security/vboot/vbnv.h>
#include <pc80/mc146818rtc.h>
 
int vbnv_cmos_failed(void)
{
        /* If CMOS power has failed, the century will be set to 0xff */
        return cmos_read(RTC_CLK_ALTCENTURY) == 0xff;
}