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author | Patrick Georgi <patrick.georgi@secunet.com> | 2012-11-15 14:54:05 +0100 |
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committer | Patrick Georgi <patrick@georgi-clan.de> | 2012-11-19 22:06:48 +0100 |
commit | f943901777990554e3f5fb27b63613f6cd95c958 (patch) | |
tree | 899988d8bf1d8f5e0ad1cbf431fe2e467b9ef9d5 /util/vgabios/Makefile | |
parent | 4b62ebe961846b5b07aa57dacc24878a30ea9cc9 (diff) |
mc146818rtc: disable RTC before writing to nvram
In principle this isn't necessary. However there's a byte (or several)
outside the first 14 bytes that are part of the RTC, and require
locking (century/altCentury).
Since their location is mostly unknown, guard writes properly.
Change-Id: I847cd4efa92722e8504d29feaf7dbfa5c5244b4e
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/1868
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'util/vgabios/Makefile')
0 files changed, 0 insertions, 0 deletions