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authorTom Rini <trini@konsulko.com>2021-08-31 19:11:15 -0400
committerTom Rini <trini@konsulko.com>2021-08-31 19:11:15 -0400
commite2e5eec6ce1c2cb496a2a5e019a175a9fbdbed2a (patch)
treea7f70892693eb02a9e23529c8ded4aea98af64a1 /doc
parentdf6cf3d809fe543651e6bdf133baaa8b9841fe0f (diff)
parent4171c574721f3790b416b57d6a536cf3238d5849 (diff)
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Merge branch 'next' of https://gitlab.denx.de/u-boot/custodians/u-boot-marvell into next
- Handling all DM watchdogs in watchdog_reset() (Rasmus)
Diffstat (limited to 'doc')
-rw-r--r--doc/device-tree-bindings/watchdog/gpio-wdt.txt19
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
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index 0000000000..c9a8559a3e
--- /dev/null
+++ b/doc/device-tree-bindings/watchdog/gpio-wdt.txt
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+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;
+ };