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