board/samsung/common/multi_i2c.c

   1 /*
   2  *  Copyright (C) 2012 Samsung Electronics
   3  *  Lukasz Majewski <l.majewski@samsung.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <i2c.h>
  10
  11 /* Handle multiple I2C buses instances */
  12 int get_multi_scl_pin(void)
  13 {
  14         unsigned int bus = I2C_GET_BUS();
  15
  16         switch (bus) {
  17         case I2C_0: /* I2C_0 definition - compatibility layer */
  18         case I2C_5:
  19                 return CONFIG_SOFT_I2C_I2C5_SCL;
  20         case I2C_9:
  21                 return CONFIG_SOFT_I2C_I2C9_SCL;
  22         default:
  23                 printf("I2C_%d not supported!\n", bus);
  24         };
  25
  26         return 0;
  27 }
  28
  29 int get_multi_sda_pin(void)
  30 {
  31         unsigned int bus = I2C_GET_BUS();
  32
  33         switch (bus) {
  34         case I2C_0: /* I2C_0 definition - compatibility layer */
  35         case I2C_5:
  36                 return CONFIG_SOFT_I2C_I2C5_SDA;
  37         case I2C_9:
  38                 return CONFIG_SOFT_I2C_I2C9_SDA;
  39         default:
  40                 printf("I2C_%d not supported!\n", bus);
  41         };
  42
  43         return 0;
  44 }
  45
  46 int multi_i2c_init(void)
  47 {
  48         return 0;
  49 }