1TI Real Time Clock 2 3Required properties: 4- compatible: 5 - "ti,da830-rtc" - for RTC IP used similar to that on DA8xx SoC family. 6 - "ti,am3352-rtc" - for RTC IP used similar to that on AM335x SoC family. 7 This RTC IP has special WAKE-EN Register to enable 8 Wakeup generation for event Alarm. It can also be 9 used to control an external PMIC via the 10 pmic_power_en pin. 11 - "ti,am4372-rtc" - for RTC IP used similar to that on AM437X SoC family. 12- reg: Address range of rtc register set 13- interrupts: rtc timer, alarm interrupts in order 14 15Optional properties: 16- system-power-controller: whether the rtc is controlling the system power 17 through pmic_power_en 18- clocks: Any internal or external clocks feeding in to rtc 19- clock-names: Corresponding names of the clocks 20- pinctrl-0: a phandle pointing to the pin settings for the device 21- pinctrl-names: should be "default" 22 23Optional subnodes: 24- generic pinctrl node 25 26Required pinctrl subnodes properties: 27- pins - Names of ext_wakeup pins to configure 28 29Optional pinctrl subnodes properties: 30- input-enable - Enables ext_wakeup 31- ti,active-high - Set input active high (by default active low) 32 33Example: 34 35rtc@1c23000 { 36 compatible = "ti,da830-rtc"; 37 reg = <0x23000 0x1000>; 38 interrupts = <19 39 19>; 40 interrupt-parent = <&intc>; 41 system-power-controller; 42 clocks = <&clk_32k_rtc>, <&clk_32768_ck>; 43 clock-names = "ext-clk", "int-clk"; 44 45 pinctrl-0 = <&ext_wakeup>; 46 pinctrl-names = "default"; 47 48 ext_wakeup: ext-wakeup { 49 pins = "ext_wakeup0"; 50 input-enable; 51 ti,active-high; 52 }; 53}; 54