xref: /linux/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/clock/loongson,ls2k-clk.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Loongson-2 SoC Clock Control Module
8
9maintainers:
10  - Yinbo Zhu <zhuyinbo@loongson.cn>
11
12description: |
13  Loongson-2 SoC clock control module is an integrated clock controller, which
14  generates and supplies to all modules.
15
16properties:
17  compatible:
18    enum:
19      - loongson,ls2k0500-clk
20      - loongson,ls2k-clk  # This is for Loongson-2K1000
21      - loongson,ls2k2000-clk
22
23  reg:
24    maxItems: 1
25
26  clocks:
27    items:
28      - description: 100m ref
29
30  clock-names:
31    items:
32      - const: ref_100m
33
34  '#clock-cells':
35    const: 1
36    description:
37      The clock consumer should specify the desired clock by having the clock
38      ID in its "clocks" phandle cell. See include/dt-bindings/clock/loongson,ls2k-clk.h
39      for the full list of Loongson-2 SoC clock IDs.
40
41required:
42  - compatible
43  - reg
44  - clocks
45  - clock-names
46  - '#clock-cells'
47
48additionalProperties: false
49
50examples:
51  - |
52    ref_100m: clock-ref-100m {
53        compatible = "fixed-clock";
54        #clock-cells = <0>;
55        clock-frequency = <100000000>;
56        clock-output-names = "ref_100m";
57    };
58
59    clk: clock-controller@1fe00480 {
60        compatible = "loongson,ls2k-clk";
61        reg = <0x1fe00480 0x58>;
62        #clock-cells = <1>;
63        clocks = <&ref_100m>;
64        clock-names = "ref_100m";
65    };
66