git.sur5r.net Git - u-boot/blob - drivers/i2c/intel_i2c.c

   1 /*
   2  * Copyright (c) 2015 Google, Inc
   3  * Written by Simon Glass <sjg@chromium.org>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <dm.h>
  10 #include <i2c.h>
  11 #include <asm/io.h>
  12
  13 int intel_i2c_xfer(struct udevice *bus, struct i2c_msg *msg, int nmsgs)
  14 {
  15         return -ENOSYS;
  16 }
  17
  18 int intel_i2c_probe_chip(struct udevice *bus, uint chip_addr, uint chip_flags)
  19 {
  20         return -ENOSYS;
  21 }
  22
  23 int intel_i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
  24 {
  25         return 0;
  26 }
  27
  28 static int intel_i2c_probe(struct udevice *dev)
  29 {
  30         return 0;
  31 }
  32
  33 static const struct dm_i2c_ops intel_i2c_ops = {
  34         .xfer           = intel_i2c_xfer,
  35         .probe_chip     = intel_i2c_probe_chip,
  36         .set_bus_speed  = intel_i2c_set_bus_speed,
  37 };
  38
  39 static const struct udevice_id intel_i2c_ids[] = {
  40         { .compatible = "intel,ich-i2c" },
  41         { }
  42 };
  43
  44 U_BOOT_DRIVER(intel_i2c) = {
  45         .name   = "i2c_intel",
  46         .id     = UCLASS_I2C,
  47         .of_match = intel_i2c_ids,
  48         .per_child_auto_alloc_size = sizeof(struct dm_i2c_chip),
  49         .ops    = &intel_i2c_ops,
  50         .probe  = intel_i2c_probe,
  51 };