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          - enum:
22              - allwinner,sun8i-a23-i2c
23              - allwinner,sun8i-a83t-i2c
24              - allwinner,sun8i-v536-i2c
25              - allwinner,sun50i-a64-i2c
26              - allwinner,sun50i-h6-i2c
27          - const: allwinner,sun6i-a31-i2c
28      - description: Allwinner SoCs with offload support
29        items:
30          - enum:
31              - allwinner,sun20i-d1-i2c
32              - allwinner,sun50i-a100-i2c
33              - allwinner,sun50i-h616-i2c
34              - allwinner,sun50i-r329-i2c
35          - const: allwinner,sun8i-v536-i2c
36          - const: allwinner,sun6i-a31-i2c
37      - const: marvell,mv64xxx-i2c
38      - const: marvell,mv78230-i2c
39      - const: marvell,mv78230-a0-i2c
40
41    description:
42      Only use "marvell,mv78230-a0-i2c" for a very rare, initial
43      version of the SoC which had broken offload support. Linux
44      auto-detects this and sets it appropriately.
45
46  reg:
47    maxItems: 1
48
49  interrupts:
50    maxItems: 1
51
52  clocks:
53    minItems: 1
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    items:
61      - const: core
62      - const: reg
63    description:
64      Mandatory if two clocks are used (only for Armada 7k and 8k).
65
66  resets:
67    maxItems: 1
68
69required:
70  - compatible
71  - reg
72  - interrupts
73
74allOf:
75  - $ref: /schemas/i2c/i2c-controller.yaml#
76  - if:
77      properties:
78        compatible:
79          contains:
80            enum:
81              - allwinner,sun4i-a10-i2c
82              - allwinner,sun6i-a31-i2c
83
84    then:
85      required:
86        - clocks
87
88  - if:
89      properties:
90        compatible:
91          contains:
92            const: allwinner,sun6i-a31-i2c
93
94    then:
95      required:
96        - resets
97
98unevaluatedProperties: false
99
100examples:
101  - |
102    i2c@11000 {
103        compatible = "marvell,mv64xxx-i2c";
104        reg = <0x11000 0x20>;
105        interrupts = <29>;
106        clock-frequency = <100000>;
107    };
108
109  - |
110    i2c@11000 {
111        compatible = "marvell,mv78230-i2c";
112        reg = <0x11000 0x100>;
113        interrupts = <29>;
114        clock-frequency = <100000>;
115    };
116
117  - |
118    i2c@701000 {
119        compatible = "marvell,mv78230-i2c";
120        reg = <0x701000 0x20>;
121        interrupts = <29>;
122        clock-frequency = <100000>;
123        clock-names = "core", "reg";
124        clocks = <&core_clock>, <&reg_clock>;
125    };
126
127...
128