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- interrupt-parent: phandle for the interrupt controller 15 16Optional properties: 17- system-power-controller: whether the rtc is controlling the system power 18 through pmic_power_en 19- clocks: Any internal or external clocks feeding in to rtc 20- clock-names: Corresponding names of the clocks 21- pinctrl-0: a phandle pointing to the pin settings for the device 22- pinctrl-names: should be "default" 23 24Optional subnodes: 25- generic pinctrl node 26 27Required pinctrl subnodes properties: 28- pins - Names of ext_wakeup pins to configure 29 30Optional pinctrl subnodes properties: 31- input-enable - Enables ext_wakeup 32- ti,active-high - Set input active high (by default active low) 33 34Example: 35 36rtc@1c23000 { 37 compatible = "ti,da830-rtc"; 38 reg = <0x23000 0x1000>; 39 interrupts = <19 40 19>; 41 interrupt-parent = <&intc>; 42 system-power-controller; 43 clocks = <&clk_32k_rtc>, <&clk_32768_ck>; 44 clock-names = "ext-clk", "int-clk"; 45 46 pinctrl-0 = <&ext_wakeup>; 47 pinctrl-names = "default"; 48 49 ext_wakeup: ext-wakeup { 50 pins = "ext_wakeup0"; 51 input-enable; 52 ti,active-high; 53 }; 54}; 55