[coreboot-gerrit] Patch merged into coreboot/master: rtc: Check update-in-progress bit
gerrit at coreboot.org
gerrit at coreboot.org
Thu Nov 17 23:08:47 CET 2016
the following patch was just integrated into master:
commit 5a043fe08d84490356888d236ee7d190aa195217
Author: Marshall Dawson <marshalldawson3rd at gmail.com>
Date: Sat Nov 5 18:31:33 2016 -0600
rtc: Check update-in-progress bit
While the real-time clock updates its count, values may not be correctly
read or written. On reads, ensure the UIP bit is clear which guarantees
a minimum of 244 microseconds exists before the update begins. Writes
already avoid the problem by disabling the RTC count via the SET bit.
Change-Id: I39e34493113015d32582f1c280fafa9e97f43a40
Signed-off-by: Marshall Dawson <marshalldawson3rd at gmail.com>
Reviewed-on: https://review.coreboot.org/17369
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin at chromium.org>
Reviewed-by: Paul Menzel <paulepanter at users.sourceforge.net>
See https://review.coreboot.org/17369 for details.
-gerrit
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