xref: /freebsd/sys/contrib/device-tree/Bindings/clock/rockchip,rk3568-cru.yaml (revision bdd1243df58e60e85101c09001d9812a789b6bc4) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/clock/rockchip,rk3568-cru.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: ROCKCHIP rk3568 Family Clock Control Module Binding
8
9maintainers:
10  - Elaine Zhang <zhangqing@rock-chips.com>
11  - Heiko Stuebner <heiko@sntech.de>
12
13description: |
14  The RK3568 clock controller generates the clock and also implements a
15  reset controller for SoC peripherals.
16  (examples: provide SCLK_UART1\PCLK_UART1 and SRST_P_UART1\SRST_S_UART1 for UART module)
17  Each clock is assigned an identifier and client nodes can use this identifier
18  to specify the clock which they consume. All available clocks are defined as
19  preprocessor macros in the dt-bindings/clock/rk3568-cru.h headers and can be
20  used in device tree sources.
21
22properties:
23  compatible:
24    enum:
25      - rockchip,rk3568-cru
26      - rockchip,rk3568-pmucru
27
28  reg:
29    maxItems: 1
30
31  "#clock-cells":
32    const: 1
33
34  "#reset-cells":
35    const: 1
36
37  clocks:
38    maxItems: 1
39
40  clock-names:
41    const: xin24m
42
43  rockchip,grf:
44    $ref: /schemas/types.yaml#/definitions/phandle
45    description:
46      Phandle to the syscon managing the "general register files" (GRF),
47      if missing pll rates are not changeable, due to the missing pll
48      lock status.
49
50required:
51  - compatible
52  - reg
53  - "#clock-cells"
54  - "#reset-cells"
55
56additionalProperties: false
57
58examples:
59  # Clock Control Module node:
60  - |
61    pmucru: clock-controller@fdd00000 {
62      compatible = "rockchip,rk3568-pmucru";
63      reg = <0xfdd00000 0x1000>;
64      #clock-cells = <1>;
65      #reset-cells = <1>;
66    };
67  - |
68    cru: clock-controller@fdd20000 {
69      compatible = "rockchip,rk3568-cru";
70      reg = <0xfdd20000 0x1000>;
71      #clock-cells = <1>;
72      #reset-cells = <1>;
73    };
74