marvell,mv64xxx-i2c.yaml

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    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 
    7 title: Marvell MV64XXX I2C Controller Device Tree Bindings
    8 
    9 maintainers:
   10   - Gregory CLEMENT <gregory.clement@bootlin.com>
   11 
   12 properties:
   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 
   69 required:
   70   - compatible
   71   - reg
   72   - interrupts
   73 
   74 allOf:
   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 
   98 unevaluatedProperties: false
   99 
  100 examples:
  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 ...

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sys/contrib/device-tree/Bindings/i2c/marvell,mv64xxx-i2c.yaml