xref: /freebsd/sys/contrib/device-tree/Bindings/rtc/microchip,mfps-rtc.yaml (revision b197d4b893974c9eb4d7b38704c6d5c486235d6f) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/rtc/microchip,mfps-rtc.yaml#
5
6$schema: http://devicetree.org/meta-schemas/core.yaml#
7
8title: Microchip PolarFire Soc (MPFS) RTC Device Tree Bindings
9
10allOf:
11  - $ref: rtc.yaml#
12
13maintainers:
14  - Daire McNamara <daire.mcnamara@microchip.com>
15  - Lewis Hanly <lewis.hanly@microchip.com>
16
17properties:
18  compatible:
19    enum:
20      - microchip,mpfs-rtc
21
22  reg:
23    maxItems: 1
24
25  interrupts:
26    items:
27      - description: |
28          RTC_WAKEUP interrupt
29      - description: |
30          RTC_MATCH, asserted when the content of the Alarm register is equal
31          to that of the RTC's count register.
32
33  clocks:
34    items:
35      - description: |
36          AHB clock
37      - description: |
38          Reference clock: divided by the prescaler to create a time-based
39          strobe (typically 1 Hz) for the calendar counter. By default, the rtc
40          on the PolarFire SoC shares it's reference with MTIMER so this will
41          be a 1 MHz clock.
42
43  clock-names:
44    items:
45      - const: rtc
46      - const: rtcref
47
48required:
49  - compatible
50  - reg
51  - interrupts
52  - clocks
53  - clock-names
54
55additionalProperties: false
56
57examples:
58  - |
59    #include "dt-bindings/clock/microchip,mpfs-clock.h"
60    rtc@20124000 {
61        compatible = "microchip,mpfs-rtc";
62        reg = <0x20124000 0x1000>;
63        clocks = <&clkcfg CLK_RTC>, <&clkcfg CLK_RTCREF>;
64        clock-names = "rtc", "rtcref";
65        interrupts = <80>, <81>;
66    };
67...
68