80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/*
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* libfdt - Flat Device Tree manipulation
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* Copyright (C) 2006 David Gibson, IBM Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _FDT_H
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#define _FDT_H
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#ifndef __ASSEMBLY__
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struct fdt_header {
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uint32_t magic; /* magic word FDT_MAGIC */
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uint32_t totalsize; /* total size of DT block */
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uint32_t off_dt_struct; /* offset to structure */
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uint32_t off_dt_strings; /* offset to strings */
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uint32_t off_mem_rsvmap; /* offset to memory reserve map */
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uint32_t version; /* format version */
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uint32_t last_comp_version; /* last compatible version */
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/* version 2 fields below */
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uint32_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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uint32_t size_dt_strings; /* size of the strings block */
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/* version 17 fields below */
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uint32_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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uint64_t address;
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uint64_t size;
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};
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struct fdt_node_header {
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uint32_t tag;
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char name[0];
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};
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struct fdt_property {
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uint32_t tag;
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uint32_t len;
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uint32_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(uint32_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(uint32_t))
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#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t))
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#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t))
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#define FDT_V16_SIZE FDT_V3_SIZE
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#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(uint32_t))
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#endif /* _FDT_H */
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