1 Sigma Designs SMP86xx/SMP87xx watchdog
4 - compatible: Should be "sigma,smp8642-wdt"
5 - reg: Specifies the physical address region
6 - clocks: Should be a phandle to the clock
9 - timeout-sec: watchdog timeout in seconds
14 compatible = "sigma,smp8642-wdt";
16 clocks = <&xtal_in_clk>;