28 lines
841 B
Plaintext
28 lines
841 B
Plaintext
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STM32 Real Time Clock
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Required properties:
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- compatible: "st,stm32-rtc".
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- reg: address range of rtc register set.
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- clocks: reference to the clock entry ck_rtc.
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- interrupt-parent: phandle for the interrupt controller.
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- interrupts: rtc alarm interrupt.
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- st,syscfg: phandle for pwrcfg, mandatory to disable/enable backup domain
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(RTC registers) write protection.
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Optional properties (to override default ck_rtc parent clock):
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- assigned-clocks: reference to the ck_rtc clock entry.
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- assigned-clock-parents: phandle of the new parent clock of ck_rtc.
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Example:
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rtc: rtc@40002800 {
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compatible = "st,stm32-rtc";
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reg = <0x40002800 0x400>;
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clocks = <&rcc 1 CLK_RTC>;
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assigned-clocks = <&rcc 1 CLK_RTC>;
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assigned-clock-parents = <&rcc 1 CLK_LSE>;
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interrupt-parent = <&exti>;
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interrupts = <17 1>;
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st,syscfg = <&pwrcfg>;
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};
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