xref: /freebsd/sys/contrib/device-tree/Bindings/rtc/xlnx-rtc.txt (revision 7ef62cebc2f965b0f640263e179276928885e33d)
1* Xilinx Zynq Ultrascale+ MPSoC Real Time Clock
2
3RTC controller for the Xilinx Zynq MPSoC Real Time Clock
4Separate IRQ lines for seconds and alarm
5
6Required 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
13Optional:
14- calibration: calibration value for 1 sec period which will
15		be programmed directly to calibration register
16
17Example:
18rtc: 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};
26