From 008cc836fe42577af2843730dfefd31b750c7de6 Mon Sep 17 00:00:00 2001 From: Joshua O'Leary Date: Wed, 7 Jun 2023 11:32:22 +0100 Subject: [PATCH] zbt-wd323: add GPIO WDT support Watchdog has not been properly configured for this router - the PCB has a hardware watchdog connected to one of the GPIO pin 21 [1] This commit provides this fix [2] Without this fix, the ZBT-WD323 is unusable in OpenWRT because it power cycles every 30 seconds due to the watchdog tripping [1] https://forum.openwrt.org/t/zbt-wd323-router-power-cycles-every-30-seconds/77535/7 [2] https://forum.openwrt.org/t/zbt-wd323-images-unusable-proposed-workaround/162145/5 Signed-off-by: Joshua O'Leary --- target/linux/ath79/dts/ar9344_zbtlink_zbt-wd323.dts | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/target/linux/ath79/dts/ar9344_zbtlink_zbt-wd323.dts b/target/linux/ath79/dts/ar9344_zbtlink_zbt-wd323.dts index 8fc21be1dcb4..8dc1ceb66660 100644 --- a/target/linux/ath79/dts/ar9344_zbtlink_zbt-wd323.dts +++ b/target/linux/ath79/dts/ar9344_zbtlink_zbt-wd323.dts @@ -59,6 +59,14 @@ gpios = <&gpio 22 GPIO_ACTIVE_LOW>; }; }; + + watchdog { + compatible = "linux,wdt-gpio"; + gpios = <&gpio 21 GPIO_ACTIVE_HIGH>; + hw_algo = "toggle"; + hw_margin_ms = <30000>; + always-running; + }; }; &wdt { -- 2.30.2