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