1ARM AMBA Primecell SP805 Watchdog 2 3SP805 WDT is a ARM Primecell Peripheral and has a standard-id register that 4can be used to identify the peripheral type, vendor, and revision. 5This value can be used for driver matching. 6 7As SP805 WDT is a primecell IP, it follows the base bindings specified in 8'arm/primecell.txt' 9 10Required properties: 11- compatible: Should be "arm,sp805" & "arm,primecell" 12- reg: Should contain location and length for watchdog timer register 13- clocks: Clocks driving the watchdog timer hardware. This list should be 14 2 clocks. With 2 clocks, the order is wdog_clk, apb_pclk 15 wdog_clk can be equal to or be a sub-multiple of the apb_pclk 16 frequency 17- clock-names: Shall be "wdog_clk" for first clock and "apb_pclk" for the 18 second one 19 20Optional properties: 21- interrupts: Should specify WDT interrupt number 22- timeout-sec: Should specify default WDT timeout in seconds. If unset, the 23 default timeout is determined by the driver 24 25Example: 26 watchdog@66090000 { 27 compatible = "arm,sp805", "arm,primecell"; 28 reg = <0x66090000 0x1000>; 29 interrupts = <GIC_SPI 406 IRQ_TYPE_LEVEL_HIGH>; 30 clocks = <&wdt_clk>, <&apb_pclk>; 31 clock-names = "wdog_clk", "apb_pclk"; 32 }; 33