diff options
Diffstat (limited to 'src/soc/amd/picasso/pmutil.c')
| -rw-r--r-- | src/soc/amd/picasso/pmutil.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/soc/amd/picasso/pmutil.c b/src/soc/amd/picasso/pmutil.c new file mode 100644 index 0000000000..59de34890f --- /dev/null +++ b/src/soc/amd/picasso/pmutil.c @@ -0,0 +1,27 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2017 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <arch/acpi.h> +#include <soc/southbridge.h> +#include <amdblocks/acpimmio.h> +#include <security/vboot/vboot_common.h> +#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; +} |