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lib: utils/i2c: Add minimal StarFive jh7110 I2C driver

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Starfive JH7110 I2C IP is synopsys designware.
Minimum StarFIve I2C driver to read/send bytes over I2C bus.

This allows querying information and perform operation of onboard PMIC,
as well as power-off and reset.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Minda Chen
2023-03-09 14:19:58 +08:00
committed by Anup Patel
parent 4b28afc98b
commit e9d08bd99c
5 changed files with 286 additions and 0 deletions
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21
include/sbi_utils/i2c/dw_i2c.h Normal file
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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2022 StarFive Technology Co., Ltd.
*
* Author: Minda Chen <minda.chen@starfivetech.com>
*/
#ifndef __DW_I2C_H__
#define __DW_I2C_H__
#include <sbi_utils/i2c/i2c.h>
int dw_i2c_init(struct i2c_adapter *, int nodeoff);
struct dw_i2c_adapter {
unsigned long addr;
struct i2c_adapter adapter;
};
#endif