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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>
This commit is contained in:
Martin Roth 2018-03-31 22:52:51 -05:00 committed by Aaron Durbin
parent 8dce5bcca5
commit d738749d47
1 changed files with 3 additions and 2 deletions
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5
src/soc/amd/stoneyridge/pmutil.c
View File

@ -17,11 +17,12 @@
#include <soc/southbridge.h> #include <soc/southbridge.h>
#include <security/vboot/vboot_common.h> #include <security/vboot/vboot_common.h>
#include <security/vboot/vbnv.h> #include <security/vboot/vbnv.h>
#include <pc80/mc146818rtc.h>
int vbnv_cmos_failed(void) int vbnv_cmos_failed(void)
{ {
/* FIXME: RTC failure checking not supported. */ /* If CMOS power has failed, the century will be set to 0xff */
return 0; return cmos_read(RTC_CLK_ALTCENTURY) == 0xff;
} }
int vboot_platform_is_resuming(void) int vboot_platform_is_resuming(void)