74 lines
1.4 KiB
YAML
74 lines
1.4 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/i2c/hisilicon,ascend910-i2c.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: HiSilicon common I2C controller
|
|
|
|
maintainers:
|
|
- Yicong Yang <yangyicong@hisilicon.com>
|
|
|
|
description:
|
|
The HiSilicon common I2C controller can be used for many different
|
|
types of SoC such as Huawei Ascend AI series chips.
|
|
|
|
allOf:
|
|
- $ref: /schemas/i2c/i2c-controller.yaml#
|
|
|
|
properties:
|
|
compatible:
|
|
const: hisilicon,ascend910-i2c
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
clocks:
|
|
maxItems: 1
|
|
|
|
clock-frequency:
|
|
default: 400000
|
|
|
|
i2c-sda-falling-time-ns:
|
|
default: 343
|
|
|
|
i2c-scl-falling-time-ns:
|
|
default: 203
|
|
|
|
i2c-sda-hold-time-ns:
|
|
default: 830
|
|
|
|
i2c-scl-rising-time-ns:
|
|
default: 365
|
|
|
|
i2c-digital-filter-width-ns:
|
|
default: 0
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
|
|
unevaluatedProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
|
|
i2c@38b0000 {
|
|
compatible = "hisilicon,ascend910-i2c";
|
|
reg = <0x38b0000 0x10000>;
|
|
interrupts = <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>;
|
|
i2c-sda-falling-time-ns = <56>;
|
|
i2c-scl-falling-time-ns = <56>;
|
|
i2c-sda-hold-time-ns = <56>;
|
|
i2c-scl-rising-time-ns = <56>;
|
|
i2c-digital-filter;
|
|
i2c-digital-filter-width-ns = <0x0>;
|
|
clocks = <&alg_clk>;
|
|
clock-frequency = <400000>;
|
|
};
|