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66 lines
1.7 KiB
66 lines
1.7 KiB
/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */ |
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#ifndef FDT_H |
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#define FDT_H |
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/* |
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* libfdt - Flat Device Tree manipulation |
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* Copyright (C) 2006 David Gibson, IBM Corporation. |
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* Copyright 2012 Kim Phillips, Freescale Semiconductor. |
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*/ |
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#ifndef __ASSEMBLY__ |
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struct fdt_header { |
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fdt32_t magic; /* magic word FDT_MAGIC */ |
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fdt32_t totalsize; /* total size of DT block */ |
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fdt32_t off_dt_struct; /* offset to structure */ |
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fdt32_t off_dt_strings; /* offset to strings */ |
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fdt32_t off_mem_rsvmap; /* offset to memory reserve map */ |
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fdt32_t version; /* format version */ |
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fdt32_t last_comp_version; /* last compatible version */ |
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/* version 2 fields below */ |
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fdt32_t boot_cpuid_phys; /* Which physical CPU id we're |
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booting on */ |
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/* version 3 fields below */ |
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fdt32_t size_dt_strings; /* size of the strings block */ |
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/* version 17 fields below */ |
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fdt32_t size_dt_struct; /* size of the structure block */ |
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}; |
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struct fdt_reserve_entry { |
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fdt64_t address; |
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fdt64_t size; |
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}; |
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struct fdt_node_header { |
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fdt32_t tag; |
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char name[0]; |
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}; |
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struct fdt_property { |
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fdt32_t tag; |
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fdt32_t len; |
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fdt32_t nameoff; |
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char data[0]; |
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}; |
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#endif /* !__ASSEMBLY */ |
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#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */ |
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#define FDT_TAGSIZE sizeof(fdt32_t) |
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#define FDT_BEGIN_NODE 0x1 /* Start node: full name */ |
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#define FDT_END_NODE 0x2 /* End node */ |
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#define FDT_PROP 0x3 /* Property: name off, |
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size, content */ |
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#define FDT_NOP 0x4 /* nop */ |
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#define FDT_END 0x9 |
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#define FDT_V1_SIZE (7*sizeof(fdt32_t)) |
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#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(fdt32_t)) |
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#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(fdt32_t)) |
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#define FDT_V16_SIZE FDT_V3_SIZE |
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#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(fdt32_t)) |
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#endif /* FDT_H */
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