blob: 45529ce0e6a17db2653a56aa919ea898da674518 [file] [log] [blame]
Simon Glass6494d702014-02-26 15:59:18 -07001/*
2 * Copyright (c) 2013 Google, Inc
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#ifndef __DM_UTIL_H
Masahiro Yamadab1799fc2014-10-07 14:49:38 +09008#define __DM_UTIL_H
Simon Glass6494d702014-02-26 15:59:18 -07009
Simon Glassa94f4682014-11-10 17:16:49 -070010#ifdef CONFIG_DM_WARN
Simon Glass6494d702014-02-26 15:59:18 -070011void dm_warn(const char *fmt, ...);
Simon Glassa94f4682014-11-10 17:16:49 -070012#else
13static inline void dm_warn(const char *fmt, ...)
14{
15}
16#endif
Simon Glass6494d702014-02-26 15:59:18 -070017
18#ifdef DEBUG
19void dm_dbg(const char *fmt, ...);
20#else
21static inline void dm_dbg(const char *fmt, ...)
22{
23}
24#endif
25
26struct list_head;
27
28/**
29 * list_count_items() - Count number of items in a list
30 *
31 * @param head: Head of list
32 * @return number of items, or 0 if empty
33 */
34int list_count_items(struct list_head *head);
35
Simon Glass304fbef2015-06-23 15:38:35 -060036/* Dump out a tree of all devices */
37void dm_dump_all(void);
38
39/* Dump out a list of uclasses and their devices */
40void dm_dump_uclass(void);
41
Masahiro Yamada40b6f2d2015-07-25 21:52:38 +090042#ifdef CONFIG_DEBUG_DEVRES
43/* Dump out a list of device resources */
44void dm_dump_devres(void);
45#else
46static inline void dm_dump_devres(void)
47{
48}
49#endif
50
Heiko Stübner27326c72017-02-18 19:46:21 +010051/**
52 * Check if a dt node should be or was bound before relocation.
53 *
54 * Devicetree nodes can be marked as needed to be bound
55 * in the loader stages via special devicetree properties.
56 *
57 * Before relocation this function can be used to check if nodes
58 * are required in either SPL or TPL stages.
59 *
60 * After relocation and jumping into the real U-Boot binary
61 * it is possible to determine if a node was bound in one of
62 * SPL/TPL stages.
63 *
64 * There are 3 settings currently in use
65 * -
66 * - u-boot,dm-pre-reloc: legacy and indicates any of TPL or SPL
67 * Existing platforms only use it to indicate nodes needee in
68 * SPL. Should probably be replaced by u-boot,dm-spl for
69 * existing platforms.
70 * @blob: devicetree
71 * @offset: node offset
72 *
73 * Returns true if node is needed in SPL/TL, false otherwise.
74 */
Heiko Stübnerd905cf72017-02-23 17:30:38 +010075bool dm_fdt_pre_reloc(const void *blob, int offset);
Heiko Stübner27326c72017-02-18 19:46:21 +010076
Simon Glass6494d702014-02-26 15:59:18 -070077#endif