blob: 48ccfd9100002deb3aff35ee4f17bc7d232b25b2 [file] [log] [blame]
David Gibson1cade992007-12-10 14:28:39 +11001#ifndef _FDT_H
2#define _FDT_H
3
4#ifndef __ASSEMBLY__
5
6struct fdt_header {
7 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 */
14
15 /* version 2 fields below */
16 uint32_t boot_cpuid_phys; /* Which physical CPU id we're
17 booting on */
18 /* version 3 fields below */
19 uint32_t size_dt_strings; /* size of the strings block */
20
21 /* version 17 fields below */
22 uint32_t size_dt_struct; /* size of the structure block */
23};
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
44#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */
45#define FDT_TAGSIZE sizeof(uint32_t)
46
47#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,
50 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
60#endif /* _FDT_H */