1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (c) 2013 Google, Inc
6 * Pavel Herrmann <morpheus.ibis@gmail.com>
7 * Marek Vasut <marex@denx.de>
10 #ifndef _DM_PLATDATA_H
11 #define _DM_PLATDATA_H
13 #include <linker_lists.h>
16 * struct driver_info - Information required to instantiate a device
18 * NOTE: Avoid using this except in extreme circumstances, where device tree
19 * is not feasible (e.g. serial driver in SPL where <8KB of SRAM is
20 * available). U-Boot's driver model uses device tree for configuration.
23 * @plat: Driver-specific platform data
24 * @plat_size: Size of platform data structure
25 * @parent_idx: Index of the parent driver_info structure
30 #if CONFIG_IS_ENABLED(OF_PLATDATA)
31 unsigned short plat_size;
36 #if CONFIG_IS_ENABLED(OF_PLATDATA)
37 #define driver_info_parent_id(driver_info) driver_info->parent_idx
39 #define driver_info_parent_id(driver_info) (-1)
43 * driver_rt - runtime information set up by U-Boot
45 * There is one of these for every driver_info in the linker list, indexed by
46 * the driver_info idx value.
48 * @dev: Device created from this idx
55 * NOTE: Avoid using these except in extreme circumstances, where device tree
56 * is not feasible (e.g. serial driver in SPL where <8KB of SRAM is
57 * available). U-Boot's driver model uses device tree for configuration.
59 * When of-platdata is in use, U_BOOT_DRVINFO() cannot be used outside of the
60 * dt-plat.c file created by dtoc
62 #if CONFIG_IS_ENABLED(OF_PLATDATA) && !defined(DT_PLAT_C)
63 #define U_BOOT_DRVINFO(__name) _Static_assert(false, \
64 "Cannot use U_BOOT_DRVINFO with of-platdata. Please use devicetree instead")
66 #define U_BOOT_DRVINFO(__name) \
67 ll_entry_declare(struct driver_info, __name, driver_info)
70 /* Declare a list of devices. The argument is a driver_info[] array */
71 #define U_BOOT_DRVINFOS(__name) \
72 ll_entry_declare_list(struct driver_info, __name, driver_info)