fdt.h

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#ifndef _FDT_H
#define _FDT_H

#ifndef __ASSEMBLY__

struct fdt_header {
    uint32_t magic;          /* magic word FDT_MAGIC */
    uint32_t totalsize;      /* total size of DT block */
    uint32_t off_dt_struct;      /* offset to structure */
    uint32_t off_dt_strings;     /* offset to strings */
    uint32_t off_mem_rsvmap;     /* offset to memory reserve map */
    uint32_t version;        /* format version */
    uint32_t last_comp_version;  /* last compatible version */

    /* version 2 fields below */
    uint32_t boot_cpuid_phys;    /* Which physical CPU id we're
                        booting on */
    /* version 3 fields below */
    uint32_t size_dt_strings;    /* size of the strings block */

    /* version 17 fields below */
    uint32_t size_dt_struct;     /* size of the structure block */
};

struct fdt_reserve_entry {
    uint64_t address;
    uint64_t size;
};

struct fdt_node_header {
    uint32_t tag;
    char name[0];
};

struct fdt_property {
    uint32_t tag;
    uint32_t len;
    uint32_t nameoff;
    char data[0];
};

#endif /* !__ASSEMBLY */

#define FDT_MAGIC   0xd00dfeed  /* 4: version, 4: total size */
#define FDT_TAGSIZE sizeof(uint32_t)

#define FDT_BEGIN_NODE  0x1     /* Start node: full name */
#define FDT_END_NODE    0x2     /* End node */
#define FDT_PROP    0x3     /* Property: name off,
                       size, content */
#define FDT_NOP     0x4     /* nop */
#define FDT_END     0x9

#define FDT_V1_SIZE (7*sizeof(uint32_t))
#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t))
#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t))
#define FDT_V16_SIZE    FDT_V3_SIZE
#define FDT_V17_SIZE    (FDT_V16_SIZE + sizeof(uint32_t))

#endif /* _FDT_H */