1Nuvoton NPCM Watchdog 2 3Nuvoton NPCM timer module provides five 24-bit timer counters, and a watchdog. 4The watchdog supports a pre-timeout interrupt that fires 10ms before the 5expiry. 6 7Required properties: 8- compatible : "nuvoton,npcm750-wdt" for NPCM750 (Poleg), or 9 "nuvoton,wpcm450-wdt" for WPCM450 (Hermon). 10- reg : Offset and length of the register set for the device. 11- interrupts : Contain the timer interrupt with flags for 12 falling edge. 13 14Required clocking property, have to be one of: 15- clocks : phandle of timer reference clock. 16- clock-frequency : The frequency in Hz of the clock that drives the NPCM7xx 17 timer (usually 25000000). 18 19Optional properties: 20- timeout-sec : Contains the watchdog timeout in seconds 21 22Example: 23 24timer@f000801c { 25 compatible = "nuvoton,npcm750-wdt"; 26 interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>; 27 reg = <0xf000801c 0x4>; 28 clocks = <&clk NPCM7XX_CLK_TIMER>; 29}; 30