Patrick Rudolph
9f3e734e5c
libpayload: Improve rtc functions ...
On Lenovo T500 the RTC readings where wrong, as RTC has
different encodings, depending on the statusB register.
Support BCD vs binary RTC format and AM/PM vs 24h RTC format.
Fixes wrong date and time on Lenovo 500.
Change-Id: Id773c33e228973e190a7e14c3d11979678b1a619
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/18498
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-03-09 08:14:04 +00:00
2017-07-13 19:45:59 +00:00
2020-02-17 15:42:34 +00:00
2012-11-08 19:49:51 +01:00
2017-12-07 21:51:24 +00:00
2019-03-07 17:15:30 +00:00
2019-02-13 12:03:03 +00:00
2015-10-31 21:37:39 +01:00
2020-02-26 17:06:40 +00:00
2020-03-04 10:39:56 +00:00
2015-12-16 19:00:53 +01:00
2012-11-07 18:36:05 +01:00
2019-10-18 15:37:37 +00:00
2015-10-31 21:37:39 +01:00
2015-10-31 21:37:39 +01:00
2020-01-14 18:25:36 +00:00
2019-04-04 19:38:31 +00:00
2019-10-03 15:27:30 +00:00
2010-06-24 11:16:10 +00:00
2014-09-15 17:37:13 +02:00
2020-02-05 21:48:36 +00:00
2010-06-24 11:16:10 +00:00
2018-09-10 15:01:04 +00:00
2019-03-04 13:25:01 +00:00
2018-10-12 20:17:40 +00:00
2010-04-27 06:56:47 +00:00
2013-03-13 22:04:44 +01:00
2014-09-15 17:37:13 +02:00
2019-03-07 17:06:28 +00:00
2013-03-18 20:45:48 +01:00
2020-03-09 08:14:04 +00:00
2019-04-10 10:43:27 +00:00
2016-02-22 21:38:37 +01:00
2014-08-10 22:29:51 +02:00
2011-07-07 22:29:53 +02:00
2017-02-17 18:20:38 +01:00
2011-08-04 08:10:41 +02:00
2020-02-05 21:48:36 +00:00
2018-09-04 12:38:40 +00:00
2013-04-18 02:50:28 +02:00
2018-09-12 14:15:18 +00:00
2015-10-20 16:50:25 +02:00
2017-07-13 19:45:59 +00:00
2019-04-10 10:44:31 +00:00
2019-07-23 09:09:45 +00:00
2015-09-10 20:11:33 +00:00
2019-12-02 13:00:45 +00:00
2011-11-01 19:08:23 +01:00
2017-08-21 16:53:20 +00:00
2013-04-18 02:50:28 +02:00
2010-03-25 18:56:26 +00:00
9f3e734e5c