renesas-wdt.txt 1.6 KB

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