[coreboot] Patch merged into coreboot/master: fa90fd4 rtc: erase CMOS memory after power failure

gerrit at coreboot.org gerrit at coreboot.org
Wed Nov 7 05:16:04 CET 2012

the following patch was just integrated into master:
commit fa90fd4f2f4aab4da25bb0c89cb408de36443a25
Author: Vincent Palatin <vpalatin at chromium.org>
Date:   Tue Aug 7 17:03:40 2012 -0700

    rtc: erase CMOS memory after power failure
    When a power failure happens on the RTC rail, the CMOS memory (including
    the RTC registers) is filled with garbage.
    So, we erase the full first bank (112 bytes) and we reset the RTC date
    to the build date.
    To test, disconnect the CMOS battery to produce an RTC power
    failure, then boot the machine and observe the RTC date is the build
    date using "cat /sys/class/rtc/rtc0/date"
    Change-Id: I684bb3ad5079f96825555d4ed84dc0f7914e9884
    Signed-off-by: Vincent Palatin <vpalatin at chromium.org>
    Reviewed-on: http://review.coreboot.org/1697
    Reviewed-by: Marc Jones <marcj303 at gmail.com>
    Tested-by: build bot (Jenkins)

Build-Tested: build bot (Jenkins) at Wed Nov  7 04:58:53 2012, giving +1
See http://review.coreboot.org/1697 for details.


More information about the coreboot mailing list