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vboot: Disable VBNV_OPROM_NEEDED after successful update

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The VBOOT_OPROM_NEEDED flag is used for EC software sync when the
VBSD_EC_SLOW_UPDATE flag is set.

After a successful EC software sync vboot requests a reboot to disable
graphics but it is not clearing the VBNV flag first.  With vboot1 this
was getting cleared as a side effect of calling VbInit in normal mode.

BUG=chrome-os-partner:49560
BRANCH=glados
TEST=Enable EC_SLOW_UPDATE on chell and test EC software sync in normal
mode and ensure that it reboots and does not do graphics init if the
update is successful.

Change-Id: I2aa0c4c3b1ad357a5b8ddc14539e264a1f5b76b2
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/322731
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Duncan Laurie
2016-01-20 12:53:15 -08:00
committed by chrome-bot
parent bcf8389d9b
commit eea0116590
1 changed files with 1 additions and 0 deletions
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1
firmware/lib/vboot_api_kernel.c
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@@ -1052,6 +1052,7 @@ VbError_t VbEcSoftwareSync(int devidx, VbCommonParams *cparams)
(shared->flags & VBSD_OPROM_LOADED)) {
VBDEBUG(("VbEcSoftwareSync() - Reboot to "
"unload VGA Option ROM\n"));
VbNvSet(&vnc, VBNV_OPROM_NEEDED, 0);
return VBERROR_VGA_OPROM_MISMATCH;
}