diff options
| author | Martin Roth <martinroth@google.com> | 2018-03-31 22:52:51 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2018-04-02 21:03:34 +0000 |
| commit | d738749d475663716b7036ab5fb2a1d91a87f6e6 (patch) | |
| tree | 399564026114c28fae2263bbb77cc3bebc5aaea7 /src | |
| parent | 8dce5bcca5cdb2c34f394508ce5c9b63bf063ae8 (diff) | |
| download | coreboot-d738749d475663716b7036ab5fb2a1d91a87f6e6.tar.xz | |
src/soc/stoneyridge: Add a check for CMOS failure
BUG=b:77345148
TEST=Pull power from grunt, verify CMOS power failure is detected.
Reboot and verify that CMOS power failure is not detected.
Change-Id: Idbf0254e197a6d282e618a98bced52ea5a44917f
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/25468
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/amd/stoneyridge/pmutil.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/soc/amd/stoneyridge/pmutil.c b/src/soc/amd/stoneyridge/pmutil.c index 25c9ec15c1..baabba5fbb 100644 --- a/src/soc/amd/stoneyridge/pmutil.c +++ b/src/soc/amd/stoneyridge/pmutil.c @@ -17,11 +17,12 @@ #include <soc/southbridge.h> #include <security/vboot/vboot_common.h> #include <security/vboot/vbnv.h> +#include <pc80/mc146818rtc.h> int vbnv_cmos_failed(void) { - /* FIXME: RTC failure checking not supported. */ - return 0; + /* If CMOS power has failed, the century will be set to 0xff */ + return cmos_read(RTC_CLK_ALTCENTURY) == 0xff; } int vboot_platform_is_resuming(void) |