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7cd5da0f GVB |
1 | #ifndef _FDT_H |
2 | #define _FDT_H | |
1258f14f JS |
3 | /* |
4 | * libfdt - Flat Device Tree manipulation | |
5 | * Copyright (C) 2006 David Gibson, IBM Corporation. | |
6 | * Copyright 2012 Kim Phillips, Freescale Semiconductor. | |
7 | * | |
c40bfbad | 8 | * SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause |
1258f14f | 9 | */ |
7cd5da0f GVB |
10 | |
11 | #ifndef __ASSEMBLY__ | |
12 | ||
13 | struct fdt_header { | |
71bbb3df KP |
14 | fdt32_t magic; /* magic word FDT_MAGIC */ |
15 | fdt32_t totalsize; /* total size of DT block */ | |
16 | fdt32_t off_dt_struct; /* offset to structure */ | |
17 | fdt32_t off_dt_strings; /* offset to strings */ | |
18 | fdt32_t off_mem_rsvmap; /* offset to memory reserve map */ | |
19 | fdt32_t version; /* format version */ | |
20 | fdt32_t last_comp_version; /* last compatible version */ | |
a5f601fd WD |
21 | |
22 | /* version 2 fields below */ | |
71bbb3df | 23 | fdt32_t boot_cpuid_phys; /* Which physical CPU id we're |
7cd5da0f GVB |
24 | booting on */ |
25 | /* version 3 fields below */ | |
71bbb3df | 26 | fdt32_t size_dt_strings; /* size of the strings block */ |
7cd5da0f GVB |
27 | |
28 | /* version 17 fields below */ | |
71bbb3df | 29 | fdt32_t size_dt_struct; /* size of the structure block */ |
7cd5da0f GVB |
30 | }; |
31 | ||
32 | struct fdt_reserve_entry { | |
71bbb3df KP |
33 | fdt64_t address; |
34 | fdt64_t size; | |
7cd5da0f GVB |
35 | }; |
36 | ||
37 | struct fdt_node_header { | |
71bbb3df | 38 | fdt32_t tag; |
7cd5da0f GVB |
39 | char name[0]; |
40 | }; | |
41 | ||
42 | struct fdt_property { | |
71bbb3df KP |
43 | fdt32_t tag; |
44 | fdt32_t len; | |
45 | fdt32_t nameoff; | |
7cd5da0f GVB |
46 | char data[0]; |
47 | }; | |
48 | ||
49 | #endif /* !__ASSEMBLY */ | |
50 | ||
a5f601fd | 51 | #define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */ |
71bbb3df | 52 | #define FDT_TAGSIZE sizeof(fdt32_t) |
7cd5da0f | 53 | |
a5f601fd WD |
54 | #define FDT_BEGIN_NODE 0x1 /* Start node: full name */ |
55 | #define FDT_END_NODE 0x2 /* End node */ | |
56 | #define FDT_PROP 0x3 /* Property: name off, | |
7cd5da0f GVB |
57 | size, content */ |
58 | #define FDT_NOP 0x4 /* nop */ | |
59 | #define FDT_END 0x9 | |
60 | ||
71bbb3df KP |
61 | #define FDT_V1_SIZE (7*sizeof(fdt32_t)) |
62 | #define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(fdt32_t)) | |
63 | #define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(fdt32_t)) | |
7cd5da0f | 64 | #define FDT_V16_SIZE FDT_V3_SIZE |
71bbb3df | 65 | #define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(fdt32_t)) |
7cd5da0f GVB |
66 | |
67 | #endif /* _FDT_H */ |