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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/i2c/spacemit,k1-i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: I2C controller embedded in SpacemiT's K1 SoC
maintainers:
- Troy Mitchell <troymitchell988@gmail.com>
properties:
compatible:
const: spacemit,k1-i2c
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
items:
- description: I2C Functional Clock
- description: APB Bus Clock
clock-names:
items:
- const: func
- const: bus
clock-frequency:
description: |
K1 support three different modes which running different frequencies
standard speed mode: up to 100000 (100Hz)
fast speed mode : up to 400000 (400Hz)
high speed mode : up to 3300000 (3.3Mhz)
default: 400000
maximum: 3300000
required:
- compatible
- reg
- interrupts
- clocks
unevaluatedProperties: false
examples:
- |
i2c@d4010800 {
compatible = "spacemit,k1-i2c";
reg = <0xd4010800 0x38>;
interrupt-parent = <&plic>;
interrupts = <36>;
clocks =<&ccu 32>, <&ccu 84>;
clock-names = "func", "bus";
clock-frequency = <100000>;
};
...
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