projects / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| f0921f50 | 1 | /* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */ |
| db405d19 RH |
2 | #ifndef FDT_H |
| 3 | #define FDT_H | |
| c0e032e0 TR |
4 | /* |
| 5 | * libfdt - Flat Device Tree manipulation | |
| 6 | * Copyright (C) 2006 David Gibson, IBM Corporation. | |
| 7 | * Copyright 2012 Kim Phillips, Freescale Semiconductor. | |
| c0e032e0 TR |
8 | */ |
| 9 | ||
| 10 | #ifndef __ASSEMBLY__ | |
| 11 | ||
| 12 | struct fdt_header { | |
| 13 | fdt32_t magic; /* magic word FDT_MAGIC */ | |
| 14 | fdt32_t totalsize; /* total size of DT block */ | |
| 15 | fdt32_t off_dt_struct; /* offset to structure */ | |
| 16 | fdt32_t off_dt_strings; /* offset to strings */ | |
| 17 | fdt32_t off_mem_rsvmap; /* offset to memory reserve map */ | |
| 18 | fdt32_t version; /* format version */ | |
| 19 | fdt32_t last_comp_version; /* last compatible version */ | |
| 20 | ||
| 21 | /* version 2 fields below */ | |
| 22 | fdt32_t boot_cpuid_phys; /* Which physical CPU id we're | |
| 23 | booting on */ | |
| 24 | /* version 3 fields below */ | |
| 25 | fdt32_t size_dt_strings; /* size of the strings block */ | |
| 26 | ||
| 27 | /* version 17 fields below */ | |
| 28 | fdt32_t size_dt_struct; /* size of the structure block */ | |
| 29 | }; | |
| 30 | ||
| 31 | struct fdt_reserve_entry { | |
| 32 | fdt64_t address; | |
| 33 | fdt64_t size; | |
| 34 | }; | |
| 35 | ||
| 36 | struct fdt_node_header { | |
| 37 | fdt32_t tag; | |
| 38 | char name[0]; | |
| 39 | }; | |
| 40 | ||
| 41 | struct fdt_property { | |
| 42 | fdt32_t tag; | |
| 43 | fdt32_t len; | |
| 44 | fdt32_t nameoff; | |
| 45 | char data[0]; | |
| 46 | }; | |
| 47 | ||
| 48 | #endif /* !__ASSEMBLY */ | |
| 49 | ||
| 50 | #define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */ | |
| 51 | #define FDT_TAGSIZE sizeof(fdt32_t) | |
| 52 | ||
| 53 | #define FDT_BEGIN_NODE 0x1 /* Start node: full name */ | |
| 54 | #define FDT_END_NODE 0x2 /* End node */ | |
| 55 | #define FDT_PROP 0x3 /* Property: name off, | |
| 56 | size, content */ | |
| 57 | #define FDT_NOP 0x4 /* nop */ | |
| 58 | #define FDT_END 0x9 | |
| 59 | ||
| 60 | #define FDT_V1_SIZE (7*sizeof(fdt32_t)) | |
| 61 | #define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(fdt32_t)) | |
| 62 | #define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(fdt32_t)) | |
| 63 | #define FDT_V16_SIZE FDT_V3_SIZE | |
| 64 | #define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(fdt32_t)) | |
| 65 | ||
| db405d19 | 66 | #endif /* FDT_H */ |