54 lines · plain
1TI Real Time Clock2 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 enable8 Wakeup generation for event Alarm. It can also be9 used to control an external PMIC via the10 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 set13- interrupts: rtc timer, alarm interrupts in order14 15Optional properties:16- system-power-controller: whether the rtc is controlling the system power17 through pmic_power_en18- clocks: Any internal or external clocks feeding in to rtc19- clock-names: Corresponding names of the clocks20- pinctrl-0: a phandle pointing to the pin settings for the device21- pinctrl-names: should be "default"22 23Optional subnodes:24- generic pinctrl node25 26Required pinctrl subnodes properties:27- pins - Names of ext_wakeup pins to configure28 29Optional pinctrl subnodes properties:30- input-enable - Enables ext_wakeup31- 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 = <1939 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