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
7 title: Freescale i.MX Watchdog Timer (WDT) Controller
8
9 maintainers:
10 - Anson Huang <Anson.Huang@nxp.com>
11
12 allOf:
13 - $ref: "watchdog.yaml#"
14
15 properties:
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
58 required:
59 - compatible
60 - interrupts
61 - reg
62
63 unevaluatedProperties: false
64
65 examples:
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 ...
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