# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/marvell,mv64xxx-i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Marvell MV64XXX I2C Controller
maintainers:
- Gregory CLEMENT <gregory.clement@bootlin.com>
properties:
compatible:
oneOf:
- const: allwinner,sun4i-a10-i2c
- items:
- const: allwinner,sun7i-a20-i2c
- const: allwinner,sun4i-a10-i2c
- const: allwinner,sun6i-a31-i2c
- items:
- enum:
- allwinner,suniv-f1c100s-i2c
- allwinner,sun8i-a23-i2c
- allwinner,sun8i-a83t-i2c
- allwinner,sun8i-v536-i2c
- allwinner,sun50i-a64-i2c
- allwinner,sun50i-h6-i2c
- const: allwinner,sun6i-a31-i2c
- description: Allwinner SoCs with offload support
items:
- enum:
- allwinner,sun20i-d1-i2c
- allwinner,sun50i-a100-i2c
- allwinner,sun50i-h616-i2c
- allwinner,sun50i-r329-i2c
- const: allwinner,sun8i-v536-i2c
- const: allwinner,sun6i-a31-i2c
- const: marvell,mv64xxx-i2c
- const: marvell,mv78230-i2c
- const: marvell,mv78230-a0-i2c
description:
Only use "marvell,mv78230-a0-i2c" for a very rare, initial
version of the SoC which had broken offload support. Linux
auto-detects this and sets it appropriately.
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
minItems: 1
items:
- description: Reference clock for the I2C bus
- description: Bus clock (Only for Armada 7K/8K)
clock-names:
minItems: 1
items:
- const: core
- const: reg
description:
Mandatory if two clocks are used (only for Armada 7k and 8k).
resets:
maxItems: 1
dmas:
items:
- description: RX DMA Channel
- description: TX DMA Channel
dma-names:
items:
- const: rx
- const: tx
dependencies:
dmas: [ dma-names ]
required:
- compatible
- reg
- interrupts
allOf:
- $ref: /schemas/i2c/i2c-controller.yaml#
- if:
properties:
compatible:
contains:
enum:
- allwinner,sun4i-a10-i2c
- allwinner,sun6i-a31-i2c
then:
required:
- clocks
- if:
properties:
compatible:
contains:
const: allwinner,sun6i-a31-i2c
then:
required:
- resets
unevaluatedProperties: false
examples:
- |
i2c@11000 {
compatible = "marvell,mv64xxx-i2c";
reg = <0x11000 0x20>;
interrupts = <29>;
clock-frequency = <100000>;
};
- |
i2c@11000 {
compatible = "marvell,mv78230-i2c";
reg = <0x11000 0x100>;
interrupts = <29>;
clock-frequency = <100000>;
};
- |
i2c@701000 {
compatible = "marvell,mv78230-i2c";
reg = <0x701000 0x20>;
interrupts = <29>;
clock-frequency = <100000>;
clock-names = "core", "reg";
clocks = <&core_clock>, <®_clock>;
};
...