[coreboot-gerrit] Change in ...coreboot[master]: google/kukui: Enable EC_GOOGLE_CHROMEEC_AP_WATCHDOG_FLAG

[You-Cheng Syu (Code Review)]

You-Cheng Syu has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31844

Change subject: google/kukui: Enable EC_GOOGLE_CHROMEEC_AP_WATCHDOG_FLAG
......................................................................

google/kukui: Enable EC_GOOGLE_CHROMEEC_AP_WATCHDOG_FLAG

Kukui AP doesn't remember if the last AP reset was due to AP watchdog.
We need to enable EC_GOOGLE_CHROMEEC_AP_WATCHDOG_FLAG so that it will
query the reset reason from EC during watchdog initialization.

Besides, we should set BOOTBLOCK_EN_L before mtk_wdt_init so that we can
communicate with EC at the time.

BUG=b:109900671,b:118654976
BRANCH=none
TEST=1. run 'mosys eventlog clear; stop daisydog; echo > /dev/watchdog'
     2. wait for watchdog reset
     3. see 'WDT: Last reset was hardware watchdog' in AP console
     4. check 'mosys eventlog list | grep watchdog'

Change-Id: I053cc7664bbaf0d3fcae26ba9481a0ad700dca90
Signed-off-by: You-Cheng Syu 
---
M src/mainboard/google/kukui/Kconfig
M src/mainboard/google/kukui/early_init.c
2 files changed, 3 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/44/31844/1

diff --git a/src/mainboard/google/kukui/Kconfig b/src/mainboard/google/kukui/Kconfig
index 9f477e5..4d4feac 100644
--- a/src/mainboard/google/kukui/Kconfig
+++ b/src/mainboard/google/kukui/Kconfig
@@ -33,6 +33,7 @@
    select FATAL_ASSERTS
    select SPI_FLASH_INCLUDE_ALL_DRIVERS
    select EC_GOOGLE_CHROMEEC
+	select EC_GOOGLE_CHROMEEC_AP_WATCHDOG_FLAG
    select EC_GOOGLE_CHROMEEC_BOARDID
    select EC_GOOGLE_CHROMEEC_SPI
    select MAINBOARD_HAS_SPI_TPM_CR50 if VBOOT
diff --git a/src/mainboard/google/kukui/early_init.c b/src/mainboard/google/kukui/early_init.c
index a16a335..9495af3 100644
--- a/src/mainboard/google/kukui/early_init.c
+++ b/src/mainboard/google/kukui/early_init.c
@@ -25,11 +25,11 @@

void mainboard_early_init(void)
 {
-	mt8183_early_init();
-
    /* Turn on real eMMC and allow communication to EC. */
    gpio_output(BOOTBLOCK_EN_L, 1);

+	mt8183_early_init();
+
    setup_chromeos_gpios();

/* Declare we are in S0 */