1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/watchdog/fsl-imx-wdt.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale i.MX Watchdog Timer (WDT) Controller
8
9maintainers:
10  - Anson Huang <Anson.Huang@nxp.com>
11
12allOf:
13  - $ref: "watchdog.yaml#"
14
15properties:
16  compatible:
17    enum:
18      - fsl,imx21-wdt
19
20  reg:
21    maxItems: 1
22
23  interrupts:
24    maxItems: 1
25
26  clocks:
27    maxItems: 1
28
29  fsl,ext-reset-output:
30    $ref: /schemas/types.yaml#/definitions/flag
31    description: |
32      If present, the watchdog device is configured to assert its
33      external reset (WDOG_B) instead of issuing a software reset.
34
35required:
36  - compatible
37  - interrupts
38  - reg
39
40unevaluatedProperties: false
41
42examples:
43  - |
44    #include <dt-bindings/interrupt-controller/arm-gic.h>
45    #include <dt-bindings/clock/imx6qdl-clock.h>
46
47    watchdog@20bc000 {
48        compatible = "fsl,imx21-wdt";
49        reg = <0x020bc000 0x4000>;
50        interrupts = <0 80 IRQ_TYPE_LEVEL_HIGH>;
51        clocks = <&clks IMX6QDL_CLK_IPG>;
52    };
53
54...
55