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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/watchdog/fsl-imx-wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale i.MX Watchdog Timer (WDT) Controller
maintainers:
- Anson Huang <Anson.Huang@nxp.com>
allOf:
- $ref: "watchdog.yaml#"
properties:
compatible:
oneOf:
- const: fsl,imx21-wdt
- items:
- enum:
- fsl,imx8mm-wdt
- fsl,imx8mn-wdt
- fsl,imx8mp-wdt
- fsl,imx8mq-wdt
- const: fsl,imx21-wdt
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 1
fsl,ext-reset-output:
$ref: /schemas/types.yaml#/definitions/flag
description: |
If present, the watchdog device is configured to assert its
external reset (WDOG_B) instead of issuing a software reset.
required:
- compatible
- interrupts
- reg
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/imx6qdl-clock.h>
watchdog@20bc000 {
compatible = "fsl,imx21-wdt";
reg = <0x020bc000 0x4000>;
interrupts = <0 80 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6QDL_CLK_IPG>;
};
...
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