1 #ifndef _FDT_H 2 #define _FDT_H 3 4 #ifndef __ASSEMBLY__ 5 6 #ifdef USE_HOSTCC 7 #include <stdint.h> 8 #endif 9 10 struct fdt_header { 11 uint32_t magic; /* magic word FDT_MAGIC */ 12 uint32_t totalsize; /* total size of DT block */ 13 uint32_t off_dt_struct; /* offset to structure */ 14 uint32_t off_dt_strings; /* offset to strings */ 15 uint32_t off_mem_rsvmap; /* offset to memory reserve map */ 16 uint32_t version; /* format version */ 17 uint32_t last_comp_version; /* last compatible version */ 18 19 /* version 2 fields below */ 20 uint32_t boot_cpuid_phys; /* Which physical CPU id we're 21 booting on */ 22 /* version 3 fields below */ 23 uint32_t size_dt_strings; /* size of the strings block */ 24 25 /* version 17 fields below */ 26 uint32_t size_dt_struct; /* size of the structure block */ 27 }; 28 29 struct fdt_reserve_entry { 30 uint64_t address; 31 uint64_t size; 32 }; 33 34 struct fdt_node_header { 35 uint32_t tag; 36 char name[0]; 37 }; 38 39 struct fdt_property { 40 uint32_t tag; 41 uint32_t len; 42 uint32_t nameoff; 43 char data[0]; 44 }; 45 46 #endif /* !__ASSEMBLY */ 47 48 #define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */ 49 #define FDT_TAGSIZE sizeof(uint32_t) 50 51 #define FDT_BEGIN_NODE 0x1 /* Start node: full name */ 52 #define FDT_END_NODE 0x2 /* End node */ 53 #define FDT_PROP 0x3 /* Property: name off, 54 size, content */ 55 #define FDT_NOP 0x4 /* nop */ 56 #define FDT_END 0x9 57 58 #define FDT_V1_SIZE (7*sizeof(uint32_t)) 59 #define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t)) 60 #define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t)) 61 #define FDT_V16_SIZE FDT_V3_SIZE 62 #define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(uint32_t)) 63 64 #endif /* _FDT_H */ 65