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| -rw-r--r-- | Documentation/devicetree/bindings/rtc/rtc-meson.txt | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rtc/rtc-meson.txt b/Documentation/devicetree/bindings/rtc/rtc-meson.txt new file mode 100644 index 000000000..e921fe66a --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-meson.txt @@ -0,0 +1,35 @@ +* Amlogic Meson6, Meson8, Meson8b and Meson8m2 RTC + +Required properties: +- compatible: should be one of the following describing the hardware: + * "amlogic,meson6-rtc" + * "amlogic,meson8-rtc" + * "amlogic,meson8b-rtc" + * "amlogic,meson8m2-rtc" + +- reg: physical register space for the controller's memory mapped registers. +- interrupts: the interrupt line of the RTC block. +- clocks: reference to the external 32.768kHz crystal oscillator. +- vdd-supply: reference to the power supply of the RTC block. +- resets: reset controller reference to allow reset of the controller + +Optional properties for the battery-backed non-volatile memory: +- #address-cells: should be 1 to address the battery-backed non-volatile memory +- #size-cells: should be 1 to reference the battery-backed non-volatile memory + +Optional child nodes: +- see ../nvmem/nvmem.txt + +Example: + + rtc: rtc@740 { + compatible = "amlogic,meson6-rtc"; + reg = <0x740 0x14>; + interrupts = <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>; + clocks = <&rtc32k_xtal>; + vdd-supply = <&rtc_vdd>; + resets = <&reset RESET_RTC>; + + #address-cells = <1>; + #size-cells = <1>; + }; |