1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/rtc/xlnx,zynqmp-rtc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Xilinx Zynq Ultrascale+ MPSoC Real Time Clock
8
9 description:
10 RTC controller for the Xilinx Zynq MPSoC Real Time Clock.
11 The RTC controller has separate IRQ lines for seconds and alarm.
12
13 maintainers:
14 - Michal Simek <michal.simek@amd.com>
15
16 allOf:
17 - $ref: rtc.yaml#
18
19 properties:
20 compatible:
21 oneOf:
22 - const: xlnx,zynqmp-rtc
23 - items:
24 - enum:
25 - xlnx,versal-rtc
26 - xlnx,versal-net-rtc
27 - const: xlnx,zynqmp-rtc
28
29 reg:
30 maxItems: 1
31
32 clocks:
33 maxItems: 1
34
35 clock-names:
36 items:
37 - const: rtc
38
39 interrupts:
40 maxItems: 2
41
42 interrupt-names:
43 items:
44 - const: alarm
45 - const: sec
46
47 calibration:
48 description: |
49 calibration value for 1 sec period which will
50 be programmed directly to calibration register.
51 $ref: /schemas/types.yaml#/definitions/uint32
52 minimum: 0x1
53 maximum: 0x1FFFFF
54 default: 0x198233
55 deprecated: true
56
57 power-domains:
58 maxItems: 1
59
60 required:
61 - compatible
62 - reg
63 - interrupts
64 - interrupt-names
65
66 additionalProperties: false
67
68 examples:
69 - |
70 soc {
71 #address-cells = <2>;
72 #size-cells = <2>;
73
74 rtc: rtc@ffa60000 {
75 compatible = "xlnx,zynqmp-rtc";
76 reg = <0x0 0xffa60000 0x0 0x100>;
77 interrupt-parent = <&gic>;
78 interrupts = <0 26 4>, <0 27 4>;
79 interrupt-names = "alarm", "sec";
80 calibration = <0x198233>;
81 clock-names = "rtc";
82 clocks = <&rtc_clk>;
83 };
84 };
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