Documentation/devicetree/bindings/watchdog/mtk-wdt.txt

   1 Mediatek SoCs Watchdog timer
   2
   3 The watchdog supports a pre-timeout interrupt that fires timeout-sec/2
   4 before the expiry.
   5
   6 Required properties:
   7
   8 - compatible should contain:
   9         "mediatek,mt2701-wdt", "mediatek,mt6589-wdt": for MT2701
  10         "mediatek,mt2712-wdt": for MT2712
  11         "mediatek,mt6589-wdt": for MT6589
  12         "mediatek,mt6797-wdt", "mediatek,mt6589-wdt": for MT6797
  13         "mediatek,mt7622-wdt", "mediatek,mt6589-wdt": for MT7622
  14         "mediatek,mt7623-wdt", "mediatek,mt6589-wdt": for MT7623
  15         "mediatek,mt7629-wdt", "mediatek,mt6589-wdt": for MT7629
  16         "mediatek,mt7986-wdt", "mediatek,mt6589-wdt": for MT7986
  17         "mediatek,mt8183-wdt": for MT8183
  18         "mediatek,mt8516-wdt", "mediatek,mt6589-wdt": for MT8516
  19         "mediatek,mt8192-wdt": for MT8192
  20         "mediatek,mt8195-wdt", "mediatek,mt6589-wdt": for MT8195
  21
  22 - reg : Specifies base physical address and size of the registers.
  23
  24 Optional properties:
  25 - interrupts: Watchdog pre-timeout (bark) interrupt.
  26 - timeout-sec: contains the watchdog timeout in seconds.
  27 - #reset-cells: Should be 1.
  28
  29 Example:
  30
  31 watchdog: watchdog@10007000 {
  32         compatible = "mediatek,mt8183-wdt",
  33                      "mediatek,mt6589-wdt";
  34         reg = <0 0x10007000 0 0x100>;
  35         interrupts = <GIC_SPI 139 IRQ_TYPE_NONE>;
  36         timeout-sec = <10>;
  37         #reset-cells = <1>;
  38 };