1#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 */
61