| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | properties: |
| 13 | compatible: |
| 14 | oneOf: |
| 15 | - const: fsl,imx21-wdt |
| 16 | - items: |
| 17 | - enum: |
| 18 | - fsl,imx25-wdt |
| 19 | - fsl,imx27-wdt |
| 20 | - fsl,imx31-wdt |
| 21 | - fsl,imx35-wdt |
| 22 | - fsl,imx50-wdt |
| 23 | - fsl,imx51-wdt |
| 24 | - fsl,imx53-wdt |
| 25 | - fsl,imx6q-wdt |
| 26 | - fsl,imx6sl-wdt |
| 27 | - fsl,imx6sll-wdt |
| 28 | - fsl,imx6sx-wdt |
| 29 | - fsl,imx6ul-wdt |
| 30 | - fsl,imx7d-wdt |
| 31 | - fsl,imx8mm-wdt |
| 32 | - fsl,imx8mn-wdt |
| 33 | - fsl,imx8mp-wdt |
| 34 | - fsl,imx8mq-wdt |
| 35 | - fsl,ls1012a-wdt |
| 36 | - fsl,ls1043a-wdt |
| 37 | - fsl,vf610-wdt |
| 38 | - const: fsl,imx21-wdt |
| 39 | |
| 40 | reg: |
| 41 | maxItems: 1 |
| 42 | |
| 43 | interrupts: |
| 44 | maxItems: 1 |
| 45 | |
| 46 | clocks: |
| 47 | maxItems: 1 |
| 48 | |
| 49 | fsl,ext-reset-output: |
| 50 | $ref: /schemas/types.yaml#/definitions/flag |
| 51 | description: | |
| 52 | If present, the watchdog device is configured to assert its |
| 53 | external reset (WDOG_B) instead of issuing a software reset. |
| 54 | |
| 55 | fsl,suspend-in-wait: |
| 56 | $ref: /schemas/types.yaml#/definitions/flag |
| 57 | description: | |
| 58 | If present, the watchdog device is suspended in WAIT mode |
| 59 | (Suspend-to-Idle). Only supported on certain devices. |
| 60 | |
| 61 | required: |
| 62 | - compatible |
| 63 | - interrupts |
| 64 | - reg |
| 65 | |
| 66 | allOf: |
| 67 | - $ref: watchdog.yaml# |
| 68 | - if: |
| 69 | not: |
| 70 | properties: |
| 71 | compatible: |
| 72 | contains: |
| 73 | enum: |
| 74 | - fsl,imx25-wdt |
| 75 | - fsl,imx35-wdt |
| 76 | - fsl,imx50-wdt |
| 77 | - fsl,imx51-wdt |
| 78 | - fsl,imx53-wdt |
| 79 | - fsl,imx6q-wdt |
| 80 | - fsl,imx6sl-wdt |
| 81 | - fsl,imx6sll-wdt |
| 82 | - fsl,imx6sx-wdt |
| 83 | - fsl,imx6ul-wdt |
| 84 | - fsl,imx7d-wdt |
| 85 | - fsl,imx8mm-wdt |
| 86 | - fsl,imx8mn-wdt |
| 87 | - fsl,imx8mp-wdt |
| 88 | - fsl,imx8mq-wdt |
| 89 | - fsl,vf610-wdt |
| 90 | then: |
| 91 | properties: |
| 92 | fsl,suspend-in-wait: false |
| 93 | |
| 94 | unevaluatedProperties: false |
| 95 | |
| 96 | examples: |
| 97 | - | |
| 98 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 99 | #include <dt-bindings/clock/imx6qdl-clock.h> |
| 100 | |
| 101 | watchdog@20bc000 { |
| 102 | compatible = "fsl,imx21-wdt"; |
| 103 | reg = <0x020bc000 0x4000>; |
| 104 | interrupts = <0 80 IRQ_TYPE_LEVEL_HIGH>; |
| 105 | clocks = <&clks IMX6QDL_CLK_IPG>; |
| 106 | }; |
| 107 | |
| 108 | ... |