include/dm/platdata.h

   1 /*
   2  * Copyright (c) 2013 Google, Inc
   3  *
   4  * (C) Copyright 2012
   5  * Pavel Herrmann <morpheus.ibis@gmail.com>
   6  * Marek Vasut <marex@denx.de>
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 #ifndef _DM_PLATDATA_H
  12 #define _DM_PLATDATA_H
  13
  14 #include <linker_lists.h>
  15
  16 /**
  17  * struct driver_info - Information required to instantiate a device
  18  *
  19  * NOTE: Avoid using this except in extreme circumstances, where device tree
  20  * is not feasible (e.g. serial driver in SPL where <8KB of SRAM is
  21  * available). U-Boot's driver model uses device tree for configuration.
  22  *
  23  * @name:       Driver name
  24  * @platdata:   Driver-specific platform data
  25  * @platdata_size: Size of platform data structure
  26  * @flags:      Platform data flags (DM_FLAG_...)
  27  */
  28 struct driver_info {
  29         const char *name;
  30         const void *platdata;
  31 #if CONFIG_IS_ENABLED(OF_PLATDATA)
  32         uint platdata_size;
  33 #endif
  34 };
  35
  36 /**
  37  * NOTE: Avoid using these except in extreme circumstances, where device tree
  38  * is not feasible (e.g. serial driver in SPL where <8KB of SRAM is
  39  * available). U-Boot's driver model uses device tree for configuration.
  40  */
  41 #define U_BOOT_DEVICE(__name)                                           \
  42         ll_entry_declare(struct driver_info, __name, driver_info)
  43
  44 /* Declare a list of devices. The argument is a driver_info[] array */
  45 #define U_BOOT_DEVICES(__name)                                          \
  46         ll_entry_declare_list(struct driver_info, __name, driver_info)
  47
  48 #endif