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111 lines
3.9 KiB
111 lines
3.9 KiB
#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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* libfdt is dual licensed: you can use it either under the terms of |
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* the GPL, or the BSD license, at your option. |
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* |
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* a) This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of the |
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* 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, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public |
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* License along with this library; if not, write to the Free |
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
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* MA 02110-1301 USA |
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* |
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* Alternatively, |
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* |
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* b) Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* 2. Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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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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