tree fe725c1ef0831144f68aa6eef8a8259a7f23fa39
parent c58e3bd90a96bf01859d1c0af83926b1e17edff5
author Keith Short <keithshort@chromium.org> 1557510775 -0600
committer Duncan Laurie <dlaurie@chromium.org> 1558555285 +0000

ec/google/wilco: set diagnostic LEDs on boot failure

On Wilco devices, if any of the coreboot stages fails with a fatal
error, set the diagnostic LEDs with the Wilco EC.  The last saved
post code is used to determine the error code sent to the EC.

BUG=b:124401932
BRANCH=sarien
TEST=build coreboot for sarien and arcada platforms
TEST=Remove DIMM module, confirm diagnostic LED pattern for memory
failure (2 amber, 4 white).
TEST=Forced a fatal error in both bootblock and verstage to confirm
diagnostic LEDs during these stages. This works on cold-boots only. Bug
b:132622888 tracks the mailbox failures on warm boots.

Change-Id: If865ab8203f89e499130f4677fec166b40d80174
Signed-off-by: Keith Short <keithshort@chromium.org>
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32777
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>