diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2015-11-06 15:24:20 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-11-13 00:52:54 +0100 |
| commit | 685ab2a2f2335a2366e2338f0425422dd3409403 (patch) | |
| tree | e1be815ad75a359f1c204f7b4ff13652214623db /src/soc/intel/skylake | |
| parent | c41c6a44127620a61b0a36b3d9b55cc13429c5cd (diff) | |
intel/skylake: ensure the RTC time is set
In 2014 or so the RTC code was changed to assume the ALTCENTRY
register (0x32) as always being utilized for creating an rtc_time.
However, one needs to ensure it's set at least once otherwise
the year field in rtc_time is not sane.
In practice this doesn't matter unless somone wants to use the
full year value. cmos_init() should do the same thing in the
rtc fail case, but the machine I had never had that set correctly.
BUG=chrome-os-partner:47388
BRANCH=None
TEST=Booted glados w/ 0xff ALTCENTRY value. New value is 0x20.
Change-Id: I028f801c5d717a0018ed00df82c25b466d64670c
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 7d5be5bc697bef60a264ddc7f67755aa96088d36
Original-Change-Id: I6e12a30c9e08d8c1002e4cef0f143f0f88009e92
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/311264
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/12411
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/soc/intel/skylake')
| -rw-r--r-- | src/soc/intel/skylake/pmc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/pmc.c b/src/soc/intel/skylake/pmc.c index fb095896aa..a2d88aa8a4 100644 --- a/src/soc/intel/skylake/pmc.c +++ b/src/soc/intel/skylake/pmc.c @@ -139,6 +139,9 @@ static void pch_rtc_init(void) printk(BIOS_DEBUG, "rtc_failed = 0x%x\n", rtc_failed); } + /* Ensure the date is set including century byte. */ + cmos_check_update_date(); + #if IS_ENABLED(CONFIG_CHROMEOS_VBNV_CMOS) pch_cmos_init_preserve(rtc_failed); #else |