Check the input VaraibleName for db/dbx when appending variables with formatted as...
[mirror_edk2.git] / EmbeddedPkg / Include / fdt.h
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1/** @file
2*
3* Copyright (c) 2011-2012, ARM Limited. All rights reserved.
4*
5* This program and the accompanying materials
6* are licensed and made available under the terms and conditions of the BSD License
7* which accompanies this distribution. The full text of the license may be found at
8* http://opensource.org/licenses/bsd-license.php
9*
10* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12*
13**/
14
15#ifndef _FDT_H
16#define _FDT_H
17
18#ifndef __ASSEMBLY__
19
20struct fdt_header {
21 uint32_t magic; /* magic word FDT_MAGIC */
22 uint32_t totalsize; /* total size of DT block */
23 uint32_t off_dt_struct; /* offset to structure */
24 uint32_t off_dt_strings; /* offset to strings */
25 uint32_t off_mem_rsvmap; /* offset to memory reserve map */
26 uint32_t version; /* format version */
27 uint32_t last_comp_version; /* last compatible version */
28
29 /* version 2 fields below */
30 uint32_t boot_cpuid_phys; /* Which physical CPU id we're
31 booting on */
32 /* version 3 fields below */
33 uint32_t size_dt_strings; /* size of the strings block */
34
35 /* version 17 fields below */
36 uint32_t size_dt_struct; /* size of the structure block */
37};
38
39struct fdt_reserve_entry {
40 uint64_t address;
41 uint64_t size;
42};
43
44struct fdt_node_header {
45 uint32_t tag;
46 char name[0];
47};
48
49struct fdt_property {
50 uint32_t tag;
51 uint32_t len;
52 uint32_t nameoff;
53 char data[0];
54};
55
56#endif /* !__ASSEMBLY */
57
58#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */
59#define FDT_TAGSIZE sizeof(uint32_t)
60
61#define FDT_BEGIN_NODE 0x1 /* Start node: full name */
62#define FDT_END_NODE 0x2 /* End node */
63#define FDT_PROP 0x3 /* Property: name off,
64 size, content */
65#define FDT_NOP 0x4 /* nop */
66#define FDT_END 0x9
67
68#define FDT_V1_SIZE (7*sizeof(uint32_t))
69#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t))
70#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t))
71#define FDT_V16_SIZE FDT_V3_SIZE
72#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(uint32_t))
73
74#endif /* _FDT_H */