xref: /linux/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml (revision ec8a42e7343234802b9054874fe01810880289ce)
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    oneOf:
18      - const: fsl,imx21-wdt
19      - items:
20          - enum:
21              - fsl,imx25-wdt
22              - fsl,imx27-wdt
23              - fsl,imx31-wdt
24              - fsl,imx35-wdt
25              - fsl,imx50-wdt
26              - fsl,imx51-wdt
27              - fsl,imx53-wdt
28              - fsl,imx6q-wdt
29              - fsl,imx6sl-wdt
30              - fsl,imx6sll-wdt
31              - fsl,imx6sx-wdt
32              - fsl,imx6ul-wdt
33              - fsl,imx7d-wdt
34              - fsl,imx8mm-wdt
35              - fsl,imx8mn-wdt
36              - fsl,imx8mp-wdt
37              - fsl,imx8mq-wdt
38              - fsl,ls1012a-wdt
39              - fsl,ls1043a-wdt
40              - fsl,vf610-wdt
41          - const: fsl,imx21-wdt
42
43  reg:
44    maxItems: 1
45
46  interrupts:
47    maxItems: 1
48
49  clocks:
50    maxItems: 1
51
52  fsl,ext-reset-output:
53    $ref: /schemas/types.yaml#/definitions/flag
54    description: |
55      If present, the watchdog device is configured to assert its
56      external reset (WDOG_B) instead of issuing a software reset.
57
58required:
59  - compatible
60  - interrupts
61  - reg
62
63unevaluatedProperties: false
64
65examples:
66  - |
67    #include <dt-bindings/interrupt-controller/arm-gic.h>
68    #include <dt-bindings/clock/imx6qdl-clock.h>
69
70    watchdog@20bc000 {
71        compatible = "fsl,imx21-wdt";
72        reg = <0x020bc000 0x4000>;
73        interrupts = <0 80 IRQ_TYPE_LEVEL_HIGH>;
74        clocks = <&clks IMX6QDL_CLK_IPG>;
75    };
76
77...
78