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1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/clock/imx8m-clock.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NXP i.MX8M Family Clock Control Module
8
9maintainers:
10 - Abel Vesa <abelvesa@kernel.org>
11 - Peng Fan <peng.fan@nxp.com>
12
13description: |
14 NXP i.MX8M Mini/Nano/Plus/Quad clock control module is an integrated clock
15 controller, which generates and supplies to all modules.
16
17properties:
18 compatible:
19 enum:
20 - fsl,imx8mm-ccm
21 - fsl,imx8mn-ccm
22 - fsl,imx8mp-ccm
23 - fsl,imx8mq-ccm
24
25 reg:
26 maxItems: 1
27
28 interrupts:
29 maxItems: 2
30
31 clocks:
32 minItems: 6
33 maxItems: 7
34
35 clock-names:
36 minItems: 6
37 maxItems: 7
38
39 '#clock-cells':
40 const: 1
41 description:
42 The clock consumer should specify the desired clock by having the clock
43 ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8m-clock.h
44 for the full list of i.MX8M clock IDs.
45
46 fsl,operating-mode:
47 $ref: /schemas/types.yaml#/definitions/string
48 enum: [nominal, overdrive]
49 description:
50 The operating mode of the SoC. This affects the maximum clock rates that
51 can safely be configured by the clock controller.
52
53required:
54 - compatible
55 - reg
56 - clocks
57 - clock-names
58 - '#clock-cells'
59
60allOf:
61 - if:
62 properties:
63 compatible:
64 contains:
65 const: fsl,imx8mq-ccm
66 then:
67 properties:
68 clocks:
69 items:
70 - description: 32k osc
71 - description: 25m osc
72 - description: 27m osc
73 - description: ext1 clock input
74 - description: ext2 clock input
75 - description: ext3 clock input
76 - description: ext4 clock input
77 clock-names:
78 items:
79 - const: ckil
80 - const: osc_25m
81 - const: osc_27m
82 - const: clk_ext1
83 - const: clk_ext2
84 - const: clk_ext3
85 - const: clk_ext4
86 else:
87 properties:
88 clocks:
89 items:
90 - description: 32k osc
91 - description: 24m osc
92 - description: ext1 clock input
93 - description: ext2 clock input
94 - description: ext3 clock input
95 - description: ext4 clock input
96
97 clock-names:
98 items:
99 - const: osc_32k
100 - const: osc_24m
101 - const: clk_ext1
102 - const: clk_ext2
103 - const: clk_ext3
104 - const: clk_ext4
105
106additionalProperties: false
107
108examples:
109 # Clock Control Module node:
110 - |
111 clock-controller@30380000 {
112 compatible = "fsl,imx8mm-ccm";
113 reg = <0x30380000 0x10000>;
114 #clock-cells = <1>;
115 clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>, <&clk_ext2>,
116 <&clk_ext3>, <&clk_ext4>;
117 clock-names = "osc_32k", "osc_24m", "clk_ext1", "clk_ext2",
118 "clk_ext3", "clk_ext4";
119 fsl,operating-mode = "nominal";
120 };
121
122 - |
123 clock-controller@30380000 {
124 compatible = "fsl,imx8mq-ccm";
125 reg = <0x30380000 0x10000>;
126 #clock-cells = <1>;
127 clocks = <&ckil>, <&osc_25m>, <&osc_27m>, <&clk_ext1>,
128 <&clk_ext2>, <&clk_ext3>, <&clk_ext4>;
129 clock-names = "ckil", "osc_25m", "osc_27m", "clk_ext1",
130 "clk_ext2", "clk_ext3", "clk_ext4";
131 };
132
133...