1STMicroelectronics Low Power Controller (LPC) - Watchdog 2======================================================== 3 4LPC currently supports Watchdog OR Real Time Clock OR Clocksource 5functionality. 6 7[See: ../rtc/rtc-st-lpc.txt for RTC options] 8[See: ../timer/st,stih407-lpc for Clocksource options] 9 10Required properties 11 12- compatible : Should be: "st,stih407-lpc" 13- reg : LPC registers base address + size 14- interrupts : LPC interrupt line number and associated flags 15- 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 configure 25 CPU reset type. 26- timeout-sec : Watchdog timeout in seconds 27 28Optional properties [watchdog mode] 29 30- st,warm-reset : If present reset type will be 'warm' - if not it will be cold 31 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