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authorJoshua O'Leary <josh.oleary@mobile-power.co.uk>2023-06-07 11:32:22 +0100
committerHauke Mehrtens <hauke@hauke-m.de>2023-07-02 15:31:03 +0200
commitfbb4aac69bde73051f95d3ebc9a10a8feb8fdfd9 (patch)
tree1603b0fd433bcaaac9858e4175973f5bdb3a2a34 /target/linux/ath79
parent436ef3772809e5e34e18b623e8ff93d34af1ea5d (diff)
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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 <josh.oleary@mobile-power.co.uk> (cherry picked from commit 008cc836fe42577af2843730dfefd31b750c7de6)
Diffstat (limited to 'target/linux/ath79')
-rw-r--r--target/linux/ath79/dts/ar9344_zbtlink_zbt-wd323.dts8
1 files changed, 8 insertions, 0 deletions
diff --git a/target/linux/ath79/dts/ar9344_zbtlink_zbt-wd323.dts b/target/linux/ath79/dts/ar9344_zbtlink_zbt-wd323.dts
index 8fc21be1dc..8dc1ceb666 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 {