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1STMicroelectronics Low Power Controller (LPC) - Watchdog2========================================================3 4LPC currently supports Watchdog OR Real Time Clock OR Clocksource5functionality.6 7[See: ../rtc/rtc-st-lpc.txt for RTC options]8[See: ../timer/st,stih407-lpc for Clocksource options]9 10Required properties11 12- compatible : Should be: "st,stih407-lpc"13- reg : LPC registers base address + size14- interrupts : LPC interrupt line number and associated flags15- clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt)16- st,lpc-mode : The LPC can run either one of three modes:17 ST_LPC_MODE_RTC [0]18 ST_LPC_MODE_WDT [1]19 ST_LPC_MODE_CLKSRC [2]20 One (and only one) mode must be selected.21 22Required properties [watchdog mode]23 24- st,syscfg : Phandle to syscfg node used to enable watchdog and configure25 CPU reset type.26- timeout-sec : Watchdog timeout in seconds27 28Optional properties [watchdog mode]29 30- st,warm-reset : If present reset type will be 'warm' - if not it will be cold31 32Example:33 lpc@fde05000 {34 compatible = "st,stih407-lpc";35 reg = <0xfde05000 0x1000>;36 clocks = <&clk_s_d3_flexgen CLK_LPC_0>;37 st,syscfg = <&syscfg_core>;38 timeout-sec = <120>;39 st,lpc-mode = <ST_LPC_MODE_WDT>;40 st,warm-reset;41 };42