xref: /freebsd/sys/contrib/device-tree/Bindings/rtc/loongson,rtc.yaml (revision e0919a4bac2b57a086688ae8ec58058b91f61d86) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/rtc/loongson,rtc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Loongson Real-Time Clock
8
9description:
10  The Loongson family chips use an on-chip counter 0 (Time Of Year
11  counter) as the RTC.
12
13maintainers:
14  - Binbin Zhou <zhoubinbin@loongson.cn>
15
16allOf:
17  - $ref: rtc.yaml#
18
19properties:
20  compatible:
21    oneOf:
22      - enum:
23          - loongson,ls1b-rtc
24          - loongson,ls1c-rtc
25          - loongson,ls7a-rtc
26          - loongson,ls2k1000-rtc
27      - items:
28          - enum:
29              - loongson,ls2k2000-rtc
30              - loongson,ls2k0500-rtc
31          - const: loongson,ls7a-rtc
32
33  reg:
34    maxItems: 1
35
36  interrupts:
37    maxItems: 1
38
39required:
40  - compatible
41  - reg
42
43unevaluatedProperties: false
44
45examples:
46  - |
47    #include <dt-bindings/interrupt-controller/irq.h>
48
49    rtc@1fe27800 {
50        compatible = "loongson,ls2k1000-rtc";
51        reg = <0x1fe27800 0x100>;
52
53        interrupt-parent = <&liointc1>;
54        interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
55    };
56
57...
58