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Diffstat (limited to 'Documentation/devicetree/bindings/watchdog/mtk-wdt.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/watchdog/mtk-wdt.txt | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt new file mode 100644 index 000000000..762c62e42 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt @@ -0,0 +1,42 @@ +Mediatek SoCs Watchdog timer + +The watchdog supports a pre-timeout interrupt that fires timeout-sec/2 +before the expiry. + +Required properties: + +- compatible should contain: + "mediatek,mt2701-wdt", "mediatek,mt6589-wdt": for MT2701 + "mediatek,mt2712-wdt": for MT2712 + "mediatek,mt6582-wdt", "mediatek,mt6589-wdt": for MT6582 + "mediatek,mt6589-wdt": for MT6589 + "mediatek,mt6797-wdt", "mediatek,mt6589-wdt": for MT6797 + "mediatek,mt7622-wdt", "mediatek,mt6589-wdt": for MT7622 + "mediatek,mt7623-wdt", "mediatek,mt6589-wdt": for MT7623 + "mediatek,mt7629-wdt", "mediatek,mt6589-wdt": for MT7629 + "mediatek,mt7986-wdt", "mediatek,mt6589-wdt": for MT7986 + "mediatek,mt8183-wdt": for MT8183 + "mediatek,mt8186-wdt", "mediatek,mt6589-wdt": for MT8186 + "mediatek,mt8516-wdt", "mediatek,mt6589-wdt": for MT8516 + "mediatek,mt8192-wdt": for MT8192 + "mediatek,mt8195-wdt", "mediatek,mt6589-wdt": for MT8195 + +- reg : Specifies base physical address and size of the registers. + +Optional properties: +- mediatek,disable-extrst: disable send output reset signal +- interrupts: Watchdog pre-timeout (bark) interrupt. +- timeout-sec: contains the watchdog timeout in seconds. +- #reset-cells: Should be 1. + +Example: + +watchdog: watchdog@10007000 { + compatible = "mediatek,mt8183-wdt", + "mediatek,mt6589-wdt"; + mediatek,disable-extrst; + reg = <0 0x10007000 0 0x100>; + interrupts = <GIC_SPI 139 IRQ_TYPE_NONE>; + timeout-sec = <10>; + #reset-cells = <1>; +}; |