| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 |
| 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,suniv-f1c100s-i2c |
| 23 | - allwinner,sun8i-a23-i2c |
| 24 | - allwinner,sun8i-a83t-i2c |
| 25 | - allwinner,sun8i-v536-i2c |
| 26 | - allwinner,sun50i-a64-i2c |
| 27 | - allwinner,sun50i-h6-i2c |
| 28 | - const: allwinner,sun6i-a31-i2c |
| 29 | - description: Allwinner SoCs with offload support |
| 30 | items: |
| 31 | - enum: |
| 32 | - allwinner,sun20i-d1-i2c |
| 33 | - allwinner,sun50i-a100-i2c |
| 34 | - allwinner,sun50i-h616-i2c |
| 35 | - allwinner,sun50i-r329-i2c |
| 36 | - const: allwinner,sun8i-v536-i2c |
| 37 | - const: allwinner,sun6i-a31-i2c |
| 38 | - const: marvell,mv64xxx-i2c |
| 39 | - const: marvell,mv78230-i2c |
| 40 | - const: marvell,mv78230-a0-i2c |
| 41 | |
| 42 | description: |
| 43 | Only use "marvell,mv78230-a0-i2c" for a very rare, initial |
| 44 | version of the SoC which had broken offload support. Linux |
| 45 | auto-detects this and sets it appropriately. |
| 46 | |
| 47 | reg: |
| 48 | maxItems: 1 |
| 49 | |
| 50 | interrupts: |
| 51 | maxItems: 1 |
| 52 | |
| 53 | clocks: |
| 54 | minItems: 1 |
| 55 | items: |
| 56 | - description: Reference clock for the I2C bus |
| 57 | - description: Bus clock (Only for Armada 7K/8K) |
| 58 | |
| 59 | clock-names: |
| 60 | minItems: 1 |
| 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 | |
| 70 | dmas: |
| 71 | items: |
| 72 | - description: RX DMA Channel |
| 73 | - description: TX DMA Channel |
| 74 | |
| 75 | dma-names: |
| 76 | items: |
| 77 | - const: rx |
| 78 | - const: tx |
| 79 | |
| 80 | dependencies: |
| 81 | dmas: [ dma-names ] |
| 82 | |
| 83 | required: |
| 84 | - compatible |
| 85 | - reg |
| 86 | - interrupts |
| 87 | |
| 88 | allOf: |
| 89 | - $ref: /schemas/i2c/i2c-controller.yaml# |
| 90 | - if: |
| 91 | properties: |
| 92 | compatible: |
| 93 | contains: |
| 94 | enum: |
| 95 | - allwinner,sun4i-a10-i2c |
| 96 | - allwinner,sun6i-a31-i2c |
| 97 | |
| 98 | then: |
| 99 | required: |
| 100 | - clocks |
| 101 | |
| 102 | - if: |
| 103 | properties: |
| 104 | compatible: |
| 105 | contains: |
| 106 | const: allwinner,sun6i-a31-i2c |
| 107 | |
| 108 | then: |
| 109 | required: |
| 110 | - resets |
| 111 | |
| 112 | unevaluatedProperties: false |
| 113 | |
| 114 | examples: |
| 115 | - | |
| 116 | i2c@11000 { |
| 117 | compatible = "marvell,mv64xxx-i2c"; |
| 118 | reg = <0x11000 0x20>; |
| 119 | interrupts = <29>; |
| 120 | clock-frequency = <100000>; |
| 121 | }; |
| 122 | |
| 123 | - | |
| 124 | i2c@11000 { |
| 125 | compatible = "marvell,mv78230-i2c"; |
| 126 | reg = <0x11000 0x100>; |
| 127 | interrupts = <29>; |
| 128 | clock-frequency = <100000>; |
| 129 | }; |
| 130 | |
| 131 | - | |
| 132 | i2c@701000 { |
| 133 | compatible = "marvell,mv78230-i2c"; |
| 134 | reg = <0x701000 0x20>; |
| 135 | interrupts = <29>; |
| 136 | clock-frequency = <100000>; |
| 137 | clock-names = "core", "reg"; |
| 138 | clocks = <&core_clock>, <®_clock>; |
| 139 | }; |
| 140 | |
| 141 | ... |