1Renesas Watchdog Timer (WDT) Controller 2 3Required properties: 4 - compatible : Must be "renesas,<soctype>-wdt", followed by a generic 5 fallback compatible string when compatible with the generic 6 version. 7 Examples with soctypes are: 8 - "renesas,r8a7743-wdt" (RZ/G1M) 9 - "renesas,r8a7745-wdt" (RZ/G1E) 10 - "renesas,r8a774a1-wdt" (RZ/G2M) 11 - "renesas,r8a7790-wdt" (R-Car H2) 12 - "renesas,r8a7791-wdt" (R-Car M2-W) 13 - "renesas,r8a7792-wdt" (R-Car V2H) 14 - "renesas,r8a7793-wdt" (R-Car M2-N) 15 - "renesas,r8a7794-wdt" (R-Car E2) 16 - "renesas,r8a7795-wdt" (R-Car H3) 17 - "renesas,r8a7796-wdt" (R-Car M3-W) 18 - "renesas,r8a77965-wdt" (R-Car M3-N) 19 - "renesas,r8a77970-wdt" (R-Car V3M) 20 - "renesas,r8a77990-wdt" (R-Car E3) 21 - "renesas,r8a77995-wdt" (R-Car D3) 22 - "renesas,r7s72100-wdt" (RZ/A1) 23 The generic compatible string must be: 24 - "renesas,rza-wdt" for RZ/A 25 - "renesas,rcar-gen2-wdt" for R-Car Gen2 and RZ/G1 26 - "renesas,rcar-gen3-wdt" for R-Car Gen3 and RZ/G2 27 28- reg : Should contain WDT registers location and length 29- clocks : the clock feeding the watchdog timer. 30 31Optional properties: 32- timeout-sec : Contains the watchdog timeout in seconds 33- power-domains : the power domain the WDT belongs to 34- interrupts: Some WDTs have an interrupt when used in interval timer mode 35 36Examples: 37 38 wdt0: watchdog@e6020000 { 39 compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt"; 40 reg = <0 0xe6020000 0 0x0c>; 41 clocks = <&cpg CPG_MOD 402>; 42 power-domains = <&cpg>; 43 timeout-sec = <60>; 44 }; 45