diff options
Diffstat (limited to 'doc/device-tree-bindings/watchdog/gpio-wdt.txt')
| -rw-r--r-- | doc/device-tree-bindings/watchdog/gpio-wdt.txt | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/watchdog/gpio-wdt.txt b/doc/device-tree-bindings/watchdog/gpio-wdt.txt new file mode 100644 index 0000000..c9a8559 --- /dev/null +++ b/doc/device-tree-bindings/watchdog/gpio-wdt.txt @@ -0,0 +1,19 @@ +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; + }; |