linux/Documentation/devicetree/bindings/watchdog/brcm,bcm2835-pm-wdog.txt
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   1BCM2835 Watchdog timer
   2
   3Required properties:
   4
   5- compatible : should be "brcm,bcm2835-pm-wdt"
   6- reg : Specifies base physical address and size of the registers.
   7
   8Example:
   9
  10watchdog {
  11        compatible = "brcm,bcm2835-pm-wdt";
  12        reg = <0x7e100000 0x28>;
  13};
  14