GPIO watchdog timer | |
Describes a simple watchdog timer which is reset by toggling a gpio. | |
Required properties: | |
- compatible: Must be "linux,wdt-gpio". | |
- gpios: gpio to toggle when wdt driver reset method is called. | |
- always-running: Boolean property indicating that the watchdog cannot | |
be disabled. At present, U-Boot only supports this kind of GPIO | |
watchdog. | |
Example: | |
gpio-wdt { | |
gpios = <&gpio0 1 0>; | |
compatible = "linux,wdt-gpio"; | |
always-running; | |
}; |