blob: 48ccfd9100002deb3aff35ee4f17bc7d232b25b2
1 | #ifndef _FDT_H |
2 | #define _FDT_H |
3 | |
4 | #ifndef __ASSEMBLY__ |
5 | |
6 | struct 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 | |
25 | struct fdt_reserve_entry { |
26 | uint64_t address; |
27 | uint64_t size; |
28 | }; |
29 | |
30 | struct fdt_node_header { |
31 | uint32_t tag; |
32 | char name[0]; |
33 | }; |
34 | |
35 | struct 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 */ |
61 |