| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/watchdog/mediatek,mtk-wdt.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: MediaTek SoCs Watchdog timer |
| |
| maintainers: |
| - Matthias Brugger <matthias.bgg@gmail.com> |
| |
| description: |
| The watchdog supports a pre-timeout interrupt that fires |
| timeout-sec/2 before the expiry. |
| |
| allOf: |
| - $ref: watchdog.yaml# |
| |
| properties: |
| compatible: |
| oneOf: |
| - enum: |
| - mediatek,mt2712-wdt |
| - mediatek,mt6589-wdt |
| - mediatek,mt6795-wdt |
| - mediatek,mt7986-wdt |
| - mediatek,mt8183-wdt |
| - mediatek,mt8186-wdt |
| - mediatek,mt8188-wdt |
| - mediatek,mt8192-wdt |
| - mediatek,mt8195-wdt |
| - items: |
| - enum: |
| - mediatek,mt2701-wdt |
| - mediatek,mt6582-wdt |
| - mediatek,mt6797-wdt |
| - mediatek,mt7622-wdt |
| - mediatek,mt7623-wdt |
| - mediatek,mt7629-wdt |
| - mediatek,mt8173-wdt |
| - mediatek,mt8516-wdt |
| - const: mediatek,mt6589-wdt |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| items: |
| - description: Watchdog pre-timeout (bark) interrupt |
| |
| mediatek,disable-extrst: |
| description: Disable sending output reset signal |
| type: boolean |
| |
| mediatek,reset-by-toprgu: |
| description: The Top Reset Generation Unit (TOPRGU) generates reset signals |
| and distributes them to each IP. If present, the watchdog timer will be |
| reset by TOPRGU once system resets. |
| type: boolean |
| |
| '#reset-cells': |
| const: 1 |
| |
| required: |
| - compatible |
| - reg |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| |
| soc { |
| #address-cells = <2>; |
| #size-cells = <2>; |
| |
| watchdog: watchdog@10007000 { |
| compatible = "mediatek,mt8183-wdt"; |
| reg = <0 0x10007000 0 0x100>; |
| interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_LOW>; |
| mediatek,disable-extrst; |
| timeout-sec = <10>; |
| #reset-cells = <1>; |
| }; |
| }; |
