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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/watchdog/arm,sbsa-gwdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: SBSA (Server Base System Architecture) Generic Watchdog
maintainers:
- Fu Wei <fu.wei@linaro.org>
description: |
The SBSA Generic Watchdog Timer is used to force a reset of the system after
two stages of timeout have elapsed. A detailed definition of the watchdog
timer can be found in the ARM document: ARM-DEN-0029 - Server Base System
Architecture (SBSA)
allOf:
- $ref: watchdog.yaml#
properties:
compatible:
const: arm,sbsa-gwdt
reg:
items:
- description: Watchdog control frame
- description: Refresh frame
interrupts:
description: The Watchdog Signal 0 (WS0) SPI (Shared Peripheral Interrupt)
maxItems: 1
required:
- compatible
- reg
- interrupts
unevaluatedProperties: false
examples:
- |
watchdog@2a440000 {
compatible = "arm,sbsa-gwdt";
reg = <0x2a440000 0x1000>,
<0x2a450000 0x1000>;
interrupts = <0 27 4>;
timeout-sec = <30>;
};
...
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