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[karo-tx-linux.git] / Documentation / devicetree / bindings / watchdog / renesas-wdt.txt
1 Renesas Watchdog Timer (WDT) Controller
2
3 Required properties:
4 - compatible : Should be "renesas,<soctype>-wdt", and
5                "renesas,rcar-gen3-wdt" or "renesas,rza-wdt" as fallback.
6                Examples with soctypes are:
7                  - "renesas,r8a7795-wdt" (R-Car H3)
8                  - "renesas,r8a7796-wdt" (R-Car M3-W)
9                  - "renesas,r7s72100-wdt" (RZ/A1)
10
11   When compatible with the generic version, nodes must list the SoC-specific
12   version corresponding to the platform first, followed by the generic
13   version.
14
15 - reg : Should contain WDT registers location and length
16 - clocks : the clock feeding the watchdog timer.
17
18 Optional properties:
19 - timeout-sec : Contains the watchdog timeout in seconds
20 - power-domains : the power domain the WDT belongs to
21 - interrupts: Some WDTs have an interrupt when used in interval timer mode
22
23 Examples:
24
25         wdt0: watchdog@e6020000 {
26                 compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";
27                 reg = <0 0xe6020000 0 0x0c>;
28                 clocks = <&cpg CPG_MOD 402>;
29                 power-domains = <&cpg>;
30                 timeout-sec = <60>;
31         };