1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/i2c/marvell,mv64xxx-i2c.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Marvell MV64XXX I2C Controller Device Tree Bindings
8
9maintainers:
10  - Gregory CLEMENT <gregory.clement@bootlin.com>
11
12properties:
13  compatible:
14    oneOf:
15      - const: allwinner,sun4i-a10-i2c
16      - items:
17          - const: allwinner,sun7i-a20-i2c
18          - const: allwinner,sun4i-a10-i2c
19      - const: allwinner,sun6i-a31-i2c
20      - items:
21          - const: allwinner,sun8i-a23-i2c
22          - const: allwinner,sun6i-a31-i2c
23      - items:
24          - const: allwinner,sun8i-a83t-i2c
25          - const: allwinner,sun6i-a31-i2c
26      - items:
27          - const: allwinner,sun50i-a64-i2c
28          - const: allwinner,sun6i-a31-i2c
29      - items:
30          - const: allwinner,sun50i-a100-i2c
31          - const: allwinner,sun6i-a31-i2c
32      - items:
33          - const: allwinner,sun50i-h6-i2c
34          - const: allwinner,sun6i-a31-i2c
35
36      - const: marvell,mv64xxx-i2c
37      - const: marvell,mv78230-i2c
38      - const: marvell,mv78230-a0-i2c
39
40    description:
41      Only use "marvell,mv78230-a0-i2c" for a very rare, initial
42      version of the SoC which had broken offload support. Linux
43      auto-detects this and sets it appropriately.
44
45  reg:
46    maxItems: 1
47
48  interrupts:
49    maxItems: 1
50
51  clocks:
52    minItems: 1
53    maxItems: 2
54    items:
55      - description: Reference clock for the I2C bus
56      - description: Bus clock (Only for Armada 7K/8K)
57
58  clock-names:
59    minItems: 1
60    maxItems: 2
61    items:
62      - const: core
63      - const: reg
64    description:
65      Mandatory if two clocks are used (only for Armada 7k and 8k).
66
67  resets:
68    maxItems: 1
69
70required:
71  - compatible
72  - reg
73  - interrupts
74
75allOf:
76  - $ref: /schemas/i2c/i2c-controller.yaml#
77  - if:
78      properties:
79        compatible:
80          contains:
81            enum:
82              - allwinner,sun4i-a10-i2c
83              - allwinner,sun6i-a31-i2c
84
85    then:
86      required:
87        - clocks
88
89  - if:
90      properties:
91        compatible:
92          contains:
93            const: allwinner,sun6i-a31-i2c
94
95    then:
96      required:
97        - resets
98
99unevaluatedProperties: false
100
101examples:
102  - |
103    i2c@11000 {
104        compatible = "marvell,mv64xxx-i2c";
105        reg = <0x11000 0x20>;
106        interrupts = <29>;
107        clock-frequency = <100000>;
108    };
109
110  - |
111    i2c@11000 {
112        compatible = "marvell,mv78230-i2c";
113        reg = <0x11000 0x100>;
114        interrupts = <29>;
115        clock-frequency = <100000>;
116    };
117
118  - |
119    i2c@701000 {
120        compatible = "marvell,mv78230-i2c";
121        reg = <0x701000 0x20>;
122        interrupts = <29>;
123        clock-frequency = <100000>;
124        clock-names = "core", "reg";
125        clocks = <&core_clock>, <&reg_clock>;
126    };
127
128...
129