Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
15 */
16
17#ifndef FLATDEVTREE_H
18#define FLATDEVTREE_H
19
20#include "types.h"
21
22/* Definitions used by the flattened device tree */
23#define OF_DT_HEADER 0xd00dfeed /* marker */
24#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
25#define OF_DT_END_NODE 0x2 /* End node */
26#define OF_DT_PROP 0x3 /* Property: name off, size, content */
27#define OF_DT_NOP 0x4 /* nop */
28#define OF_DT_END 0x9
29
30#define OF_DT_VERSION 0x10
31
32struct boot_param_header {
33 u32 magic; /* magic word OF_DT_HEADER */
34 u32 totalsize; /* total size of DT block */
35 u32 off_dt_struct; /* offset to structure */
36 u32 off_dt_strings; /* offset to strings */
37 u32 off_mem_rsvmap; /* offset to memory reserve map */
38 u32 version; /* format version */
39 u32 last_comp_version; /* last compatible version */
40 /* version 2 fields below */
41 u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
42 /* version 3 fields below */
43 u32 dt_strings_size; /* size of the DT strings block */
44};
45
46#endif /* FLATDEVTREE_H */