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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/rtc/xlnx,zynqmp-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Xilinx Zynq Ultrascale+ MPSoC Real Time Clock
description:
RTC controller for the Xilinx Zynq MPSoC Real Time Clock.
The RTC controller has separate IRQ lines for seconds and alarm.
maintainers:
- Michal Simek <michal.simek@xilinx.com>
allOf:
- $ref: rtc.yaml#
properties:
compatible:
const: xlnx,zynqmp-rtc
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
items:
- const: rtc
interrupts:
maxItems: 2
interrupt-names:
items:
- const: alarm
- const: sec
calibration:
description: |
calibration value for 1 sec period which will
be programmed directly to calibration register.
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0x1
maximum: 0x1FFFFF
default: 0x198233
deprecated: true
required:
- compatible
- reg
- interrupts
- interrupt-names
additionalProperties: false
examples:
- |
soc {
#address-cells = <2>;
#size-cells = <2>;
rtc: rtc@ffa60000 {
compatible = "xlnx,zynqmp-rtc";
reg = <0x0 0xffa60000 0x0 0x100>;
interrupt-parent = <&gic>;
interrupts = <0 26 4>, <0 27 4>;
interrupt-names = "alarm", "sec";
calibration = <0x198233>;
clock-names = "rtc";
clocks = <&rtc_clk>;
};
};
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