Renesas Watchdog Timer (WDT) Controller
Required properties:
compatible : Must be “renesas,
-wdt”, followed by a generic fallback compatible string when compatible with the generic version. Examples with soctypes are: - "renesas,r8a7743-wdt" (RZ/G1M) - "renesas,r8a7745-wdt" (RZ/G1E) - "renesas,r8a7790-wdt" (R-Car H2) - "renesas,r8a7791-wdt" (R-Car M2-W) - "renesas,r8a7792-wdt" (R-Car V2H) - "renesas,r8a7793-wdt" (R-Car M2-N) - "renesas,r8a7794-wdt" (R-Car E2) - "renesas,r8a7795-wdt" (R-Car H3) - "renesas,r8a7796-wdt" (R-Car M3-W) - "renesas,r8a77965-wdt" (R-Car M3-N) - "renesas,r8a77970-wdt" (R-Car V3M) - "renesas,r8a77995-wdt" (R-Car D3) - "renesas,r7s72100-wdt" (RZ/A1) The generic compatible string must be: - "renesas,rza-wdt" for RZ/A - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G - "renesas,rcar-gen3-wdt" for R-Car Gen3
reg : Should contain WDT registers location and length
clocks : the clock feeding the watchdog timer.
Optional properties:
- timeout-sec : Contains the watchdog timeout in seconds
- power-domains : the power domain the WDT belongs to
- interrupts: Some WDTs have an interrupt when used in interval timer mode
Examples:
wdt0: watchdog@e6020000 {
compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt";
reg = <0 0xe6020000 0 0x0c>;
clocks = <&cpg CPG_MOD 402>;
power-domains = <&cpg>;
timeout-sec = <60>;
};