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

   1 * Xilinx Zynq Ultrascale+ MPSoC Real Time Clock
   2
   3 RTC controller for the Xilinx Zynq MPSoC Real Time Clock
   4 Separate IRQ lines for seconds and alarm
   5
   6 Required properties:
   7 - compatible: Should be "xlnx,zynqmp-rtc"
   8 - reg: Physical base address of the controller and length
   9        of memory mapped region.
  10 - interrupts: IRQ lines for the RTC.
  11 - interrupt-names: interrupt line names eg. "sec" "alarm"
  12
  13 Optional:
  14 - calibration: calibration value for 1 sec period which will
  15                 be programmed directly to calibration register
  16
  17 Example:
  18 rtc: rtc@ffa60000 {
  19         compatible = "xlnx,zynqmp-rtc";
  20         reg = <0x0 0xffa60000 0x100>;
  21         interrupt-parent = <&gic>;
  22         interrupts = <0 26 4>, <0 27 4>;
  23         interrupt-names = "alarm", "sec";
  24         calibration = <0x198233>;
  25 };