Documentation/devicetree/bindings/rtc/sun6i-rtc.txt

   1 * sun6i Real Time Clock
   2
   3 RTC controller for the Allwinner A31
   4
   5 Required properties:
   6 - compatible    : Should be "allwinner,sun6i-a31-rtc"
   7 - reg           : physical base address of the controller and length of
   8                   memory mapped region.
   9 - interrupts    : IRQ lines for the RTC alarm 0 and alarm 1, in that order.
  10
  11 Required properties for new device trees
  12 - clocks        : phandle to the 32kHz external oscillator
  13 - clock-output-names : names of the LOSC and its external output clocks created
  14 - #clock-cells  : must be equals to 1. The RTC provides two clocks: the
  15                   LOSC and its external output, with index 0 and 1
  16                   respectively.
  17
  18 Example:
  19
  20 rtc: rtc@01f00000 {
  21         compatible = "allwinner,sun6i-a31-rtc";
  22         reg = <0x01f00000 0x54>;
  23         interrupts = <0 40 4>, <0 41 4>;
  24         clock-output-names = "osc32k", "osc32k-out";
  25         clocks = <&ext_osc32k>;
  26         #clock-cells = <1>;
  27 };