From e9d08bd99cc702fcec1c5b59b593781da668e2bc Mon Sep 17 00:00:00 2001
From: Minda Chen <minda.chen@starfivetech.com>
Date: Thu, 9 Mar 2023 14:19:58 +0800
Subject: lib: utils/i2c: Add minimal StarFive jh7110 I2C driver

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>
---
 include/sbi_utils/i2c/dw_i2c.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 include/sbi_utils/i2c/dw_i2c.h

(limited to 'include')

diff --git a/include/sbi_utils/i2c/dw_i2c.h b/include/sbi_utils/i2c/dw_i2c.h
new file mode 100644
index 00000000..88703e05
--- /dev/null
+++ b/include/sbi_utils/i2c/dw_i2c.h
@@ -0,0 +1,21 @@
+/*
+ * 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
-- 
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