erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

mb/google/rauru: Disable CHROMEOS_USE_EC_WATCHDOG_FLAG

Browse source 
Now that we use the WATCHDOG_TOMBSTONE section to store the watchdog
event magic, there is no need to ask EC for the last reset reason. In
fact, with MEDIATEK_WDT_RESET_BY_SW enabled, EC doesn't even record the
watchdog reset reason.

Enable CHROMEOS_USE_EC_WATCHDOG_FLAG only if MEDIATEK_WDT_RESET_BY_SW is
disabled.

BUG=b:481854714
TEST= After triggering WDT timeout, the following log can be observed:
[NOTE ]  coreboot-coreboot-unknown.9999.782bb84 Mon Feb 23 06:42:21 UTC 2026 aarch64 bootblock starting (log level: 8)
[DEBUG]  ARM64: Exception handlers installed.
[DEBUG]  ARM64: Testing exception
[DEBUG]  ARM64: Done test exception
[DEBUG]  [booker_init] AP hash rule: 0xbe00
[INFO ]  mtk_cksys_init = 0x1
[INFO ]  WDT: Status = 0x20000
[INFO ]  WDT: Last reset was other reset type: 0x00020000
[INFO ]  mtk_wdt_swreset() called!
[INFO ]  board_reset() called!

And "elogtool list" contained "Hardware watchdog reset".

Change-Id: I44a940d88948897e6727fad5c87f364e3ba9ac61
Signed-off-by: Jarried Lin <jarried.lin@mediatek.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91421
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Jarried Lin 2026-02-09 13:24:20 +08:00 • committed by Matt DeVillier
commit 7b205808e4
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/mainboard/google/rauru/Kconfig
View file

@ -26,7 +26,7 @@ config BOARD_SPECIFIC_OPTIONS
select SPI_FLASH_INCLUDE_ALL_DRIVERS
select MAINBOARD_HAS_NATIVE_VGA_INIT
select HAVE_LINEAR_FRAMEBUFFER
select CHROMEOS_USE_EC_WATCHDOG_FLAG if CHROMEOS
select CHROMEOS_USE_EC_WATCHDOG_FLAG if CHROMEOS && !MEDIATEK_WDT_RESET_BY_SW
select EC_GOOGLE_CHROMEEC
select EC_GOOGLE_CHROMEEC_BOARDID
select EC_GOOGLE_CHROMEEC_FW_CONFIG_FROM_UFSC if BOARD_GOOGLE_SAPPHIRE