1*4882a593SmuzhiyunNuvoton NPCM Watchdog 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunNuvoton NPCM timer module provides five 24-bit timer counters, and a watchdog. 4*4882a593SmuzhiyunThe watchdog supports a pre-timeout interrupt that fires 10ms before the 5*4882a593Smuzhiyunexpiry. 6*4882a593Smuzhiyun 7*4882a593SmuzhiyunRequired properties: 8*4882a593Smuzhiyun- compatible : "nuvoton,npcm750-wdt" for NPCM750 (Poleg). 9*4882a593Smuzhiyun- reg : Offset and length of the register set for the device. 10*4882a593Smuzhiyun- interrupts : Contain the timer interrupt with flags for 11*4882a593Smuzhiyun falling edge. 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunRequired clocking property, have to be one of: 14*4882a593Smuzhiyun- clocks : phandle of timer reference clock. 15*4882a593Smuzhiyun- clock-frequency : The frequency in Hz of the clock that drives the NPCM7xx 16*4882a593Smuzhiyun timer (usually 25000000). 17*4882a593Smuzhiyun 18*4882a593SmuzhiyunOptional properties: 19*4882a593Smuzhiyun- timeout-sec : Contains the watchdog timeout in seconds 20*4882a593Smuzhiyun 21*4882a593SmuzhiyunExample: 22*4882a593Smuzhiyun 23*4882a593Smuzhiyuntimer@f000801c { 24*4882a593Smuzhiyun compatible = "nuvoton,npcm750-wdt"; 25*4882a593Smuzhiyun interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>; 26*4882a593Smuzhiyun reg = <0xf000801c 0x4>; 27*4882a593Smuzhiyun clocks = <&clk NPCM7XX_CLK_TIMER>; 28*4882a593Smuzhiyun}; 29