From 12ece40d9196e01961192fc25cfdaf22392520de Mon Sep 17 00:00:00 2001 From: Suneel Garapati Date: Wed, 19 Aug 2015 15:23:21 +0530 Subject: [PATCH] devicetree: bindings: rtc: add bindings for xilinx zynqmp rtc adds file for description on device node bindings for RTC found on Xilinx Zynq Ultrascale+ MPSoC. Signed-off-by: Suneel Garapati Signed-off-by: Alexandre Belloni --- .../devicetree/bindings/rtc/xlnx-rtc.txt | 25 +++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/xlnx-rtc.txt diff --git a/Documentation/devicetree/bindings/rtc/xlnx-rtc.txt b/Documentation/devicetree/bindings/rtc/xlnx-rtc.txt new file mode 100644 index 000000000000..0df6f016b1b7 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/xlnx-rtc.txt @@ -0,0 +1,25 @@ +* Xilinx Zynq Ultrascale+ MPSoC Real Time Clock + +RTC controller for the Xilinx Zynq MPSoC Real Time Clock +Separate IRQ lines for seconds and alarm + +Required properties: +- compatible: Should be "xlnx,zynqmp-rtc" +- reg: Physical base address of the controller and length + of memory mapped region. +- interrupts: IRQ lines for the RTC. +- interrupt-names: interrupt line names eg. "sec" "alarm" + +Optional: +- calibration: calibration value for 1 sec period which will + be programmed directly to calibration register + +Example: +rtc: rtc@ffa60000 { + compatible = "xlnx,zynqmp-rtc"; + reg = <0x0 0xffa60000 0x100>; + interrupt-parent = <&gic>; + interrupts = <0 26 4>, <0 27 4>; + interrupt-names = "alarm", "sec"; + calibration = <0x198233>; +}; -- 2.20.1