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Gerald Van Baren7cd5da02007-03-31 11:59:59 -04001#ifndef _FDT_H
2#define _FDT_H
3
4#ifndef __ASSEMBLY__
5
6struct fdt_header {
Wolfgang Denka5f601f2007-11-26 19:18:21 +01007 uint32_t magic; /* magic word FDT_MAGIC */
8 uint32_t totalsize; /* total size of DT block */
9 uint32_t off_dt_struct; /* offset to structure */
10 uint32_t off_dt_strings; /* offset to strings */
11 uint32_t off_mem_rsvmap; /* offset to memory reserve map */
12 uint32_t version; /* format version */
13 uint32_t last_comp_version; /* last compatible version */
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040014
Wolfgang Denka5f601f2007-11-26 19:18:21 +010015 /* version 2 fields below */
16 uint32_t boot_cpuid_phys; /* Which physical CPU id we're
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040017 booting on */
18 /* version 3 fields below */
Wolfgang Denka5f601f2007-11-26 19:18:21 +010019 uint32_t size_dt_strings; /* size of the strings block */
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040020
21 /* version 17 fields below */
Wolfgang Denka5f601f2007-11-26 19:18:21 +010022 uint32_t size_dt_struct; /* size of the structure block */
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040023};
24
25struct fdt_reserve_entry {
26 uint64_t address;
27 uint64_t size;
28};
29
30struct fdt_node_header {
31 uint32_t tag;
32 char name[0];
33};
34
35struct fdt_property {
36 uint32_t tag;
37 uint32_t len;
38 uint32_t nameoff;
39 char data[0];
40};
41
42#endif /* !__ASSEMBLY */
43
Wolfgang Denka5f601f2007-11-26 19:18:21 +010044#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040045#define FDT_TAGSIZE sizeof(uint32_t)
46
Wolfgang Denka5f601f2007-11-26 19:18:21 +010047#define FDT_BEGIN_NODE 0x1 /* Start node: full name */
48#define FDT_END_NODE 0x2 /* End node */
49#define FDT_PROP 0x3 /* Property: name off,
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040050 size, content */
51#define FDT_NOP 0x4 /* nop */
52#define FDT_END 0x9
53
54#define FDT_V1_SIZE (7*sizeof(uint32_t))
55#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t))
56#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t))
57#define FDT_V16_SIZE FDT_V3_SIZE
58#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(uint32_t))
59
Heiko Schocher56844a22008-09-11 08:11:23 +020060/* adding a ramdisk needs 0x44 bytes in version 2008.10 */
61#define FDT_RAMDISK_OVERHEAD 0x80
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040062#endif /* _FDT_H */