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/*
* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_ARCH_MXC_MXC_I2C_H__
#define __ASM_ARCH_MXC_MXC_I2C_H__
#include <asm/imx-common/iomux-v3.h>
struct i2c_pin_ctrl {
iomux_v3_cfg_t i2c_mode;
iomux_v3_cfg_t gpio_mode;
unsigned char gp;
unsigned char spare;
};
struct i2c_pads_info {
struct i2c_pin_ctrl scl;
struct i2c_pin_ctrl sda;
};
#if defined(CONFIG_MX6QDL)
#define I2C_PADS(name, scl_i2c, scl_gpio, scl_gp, sda_i2c, sda_gpio, sda_gp) \
struct i2c_pads_info mx6q_##name = { \
.scl = { \
.i2c_mode = MX6Q_##scl_i2c, \
.gpio_mode = MX6Q_##scl_gpio, \
.gp = scl_gp, \
}, \
.sda = { \
.i2c_mode = MX6Q_##sda_i2c, \
.gpio_mode = MX6Q_##sda_gpio, \
.gp = sda_gp, \
} \
}; \
struct i2c_pads_info mx6s_##name = { \
.scl = { \
.i2c_mode = MX6DL_##scl_i2c, \
.gpio_mode = MX6DL_##scl_gpio, \
.gp = scl_gp, \
}, \
.sda = { \
.i2c_mode = MX6DL_##sda_i2c, \
.gpio_mode = MX6DL_##sda_gpio, \
.gp = sda_gp, \
} \
};
#define I2C_PADS_INFO(name) \
(is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D)) ? \
&mx6q_##name : &mx6s_##name
#endif
void setup_i2c(unsigned i2c_index, int speed, int slave_addr,
struct i2c_pads_info *p);
void bus_i2c_init(void *base, int speed, int slave_addr,
int (*idle_bus_fn)(void *p), void *p);
int bus_i2c_read(void *base, uchar chip, uint addr, int alen, uchar *buf,
int len);
int bus_i2c_write(void *base, uchar chip, uint addr, int alen,
const uchar *buf, int len);
#endif
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