1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/watchdog/fsl-imx7ulp-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Freescale i.MX7ULP Watchdog Timer (WDT) Controller
8
9 maintainers:
10 - Shawn Guo <shawnguo@kernel.org>
11 - Sascha Hauer <s.hauer@pengutronix.de>
12 - Fabio Estevam <festevam@gmail.com>
13
14 allOf:
15 - $ref: watchdog.yaml#
16
17 properties:
18 compatible:
19 oneOf:
20 - const: fsl,imx7ulp-wdt
21 - items:
22 - const: fsl,imx8ulp-wdt
23 - const: fsl,imx7ulp-wdt
24 - const: fsl,imx93-wdt
25
26 reg:
27 maxItems: 1
28
29 interrupts:
30 maxItems: 1
31
32 clocks:
33 maxItems: 1
34
35 fsl,ext-reset-output:
36 description:
37 When set, wdog can generate external reset from the wdog_any pin.
38 type: boolean
39
40 required:
41 - compatible
42 - interrupts
43 - reg
44 - clocks
45
46 unevaluatedProperties: false
47
48 examples:
49 - |
50 #include <dt-bindings/interrupt-controller/arm-gic.h>
51 #include <dt-bindings/clock/imx7ulp-clock.h>
52
53 watchdog@403d0000 {
54 compatible = "fsl,imx7ulp-wdt";
55 reg = <0x403d0000 0x10000>;
56 interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
57 clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
58 assigned-clocks = <&pcc2 IMX7ULP_CLK_WDG1>;
59 assigned-clock-parents = <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>;
60 timeout-sec = <40>;
61 };
62
63 ...
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