[coreboot-gerrit] Change in coreboot[master]: google/chromeos: Support AP watchdog flag from Chrome EC

[Yu-Ping Wu (Code Review)]

Yu-Ping Wu has uploaded a new patch set (#12) to the change originally created by You-Cheng Syu. ( https://review.coreboot.org/c/coreboot/+/31834 )

Change subject: google/chromeos: Support AP watchdog flag from Chrome EC
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google/chromeos: Support AP watchdog flag from Chrome EC

After ChromiumOS CL:1293132 and CL:1295890, Chrome EC can store the flag
telling if the last reboot was triggered by AP watchdog for some boards
(e.g., Kukui).

This CL adds a new function google_chromeec_get_ap_watchdog_flag(),
which reads the AP watchdog flag from Chrome EC, and updates the tables
of reset causes and reset flags.

A new Kconfig option CHROMEOS_USE_EC_WATCHDOG_FLAG is added for
elog_handle_watchdog_tombstone() to determine if watchdog reset was
triggered by the AP watchdog flag from EC instead of the tombstone in
AP.

BUG=b:109900671,b:118654976
BRANCH=none
TEST=test with https://review.coreboot.org/c/coreboot/+/31843

Change-Id: I7a970666a8c6da32ac1c6af8280e808fe7fc106d
Signed-off-by: You-Cheng Syu 
---
M src/ec/google/chromeec/ec.c
M src/ec/google/chromeec/ec.h
M src/vendorcode/google/chromeos/Kconfig
M src/vendorcode/google/chromeos/watchdog.c
4 files changed, 46 insertions(+), 17 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/34/31834/12