arch/arm/include/asm/imx-common/mxc_i2c.h

   1 /*
   2  * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6 #ifndef __ASM_ARCH_MXC_MXC_I2C_H__
   7 #define __ASM_ARCH_MXC_MXC_I2C_H__
   8 #include <asm/imx-common/iomux-v3.h>
   9
  10 struct i2c_pin_ctrl {
  11         iomux_v3_cfg_t i2c_mode;
  12         iomux_v3_cfg_t gpio_mode;
  13         unsigned char gp;
  14         unsigned char spare;
  15 };
  16
  17 struct i2c_pads_info {
  18         struct i2c_pin_ctrl scl;
  19         struct i2c_pin_ctrl sda;
  20 };
  21
  22 void setup_i2c(unsigned i2c_index, int speed, int slave_addr,
  23                 struct i2c_pads_info *p);
  24 void bus_i2c_init(void *base, int speed, int slave_addr,
  25                 int (*idle_bus_fn)(void *p), void *p);
  26 int bus_i2c_read(void *base, uchar chip, uint addr, int alen, uchar *buf,
  27                 int len);
  28 int bus_i2c_write(void *base, uchar chip, uint addr, int alen,
  29                 const uchar *buf, int len);
  30 #endif