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  #ifndef _FDT_H
  #define _FDT_H
  /*
   * libfdt - Flat Device Tree manipulation
   * Copyright (C) 2006 David Gibson, IBM Corporation.
   * Copyright 2012 Kim Phillips, Freescale Semiconductor.
   *
   * libfdt is dual licensed: you can use it either under the terms of
   * the GPL, or the BSD license, at your option.
   *
   *  a) This library is free software; you can redistribute it and/or
   *     modify it under the terms of the GNU General Public License as
   *     published by the Free Software Foundation; either version 2 of the
   *     License, or (at your option) any later version.
   *
   *     This library is distributed in the hope that it will be useful,
   *     but WITHOUT ANY WARRANTY; without even the implied warranty of
   *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *     GNU General Public License for more details.
   *
   *     You should have received a copy of the GNU General Public
   *     License along with this library; if not, write to the Free
   *     Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
   *     MA 02110-1301 USA
   *
   * Alternatively,
   *
   *  b) Redistribution and use in source and binary forms, with or
   *     without modification, are permitted provided that the following
   *     conditions are met:
   *
   *     1. Redistributions of source code must retain the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer.
   *     2. Redistributions in binary form must reproduce the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer in the documentation and/or other materials
   *        provided with the distribution.
   *
   *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
   *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
   *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
   *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
   *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
   *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef __ASSEMBLY__
  
  struct fdt_header {
  	fdt32_t magic;			 /* magic word FDT_MAGIC */
  	fdt32_t totalsize;		 /* total size of DT block */
  	fdt32_t off_dt_struct;		 /* offset to structure */
  	fdt32_t off_dt_strings;		 /* offset to strings */
  	fdt32_t off_mem_rsvmap;		 /* offset to memory reserve map */
  	fdt32_t version;		 /* format version */
  	fdt32_t last_comp_version;	 /* last compatible version */
  
  	/* version 2 fields below */
  	fdt32_t boot_cpuid_phys;	 /* Which physical CPU id we're
  					    booting on */
  	/* version 3 fields below */
  	fdt32_t size_dt_strings;	 /* size of the strings block */
  
  	/* version 17 fields below */
  	fdt32_t size_dt_struct;		 /* size of the structure block */
  };
  
  struct fdt_reserve_entry {
  	fdt64_t address;
  	fdt64_t size;
  };
  
  struct fdt_node_header {
  	fdt32_t tag;
  	char name[0];
  };
  
  struct fdt_property {
  	fdt32_t tag;
  	fdt32_t len;
  	fdt32_t nameoff;
  	char data[0];
  };
  
  #endif /* !__ASSEMBLY */
  
  #define FDT_MAGIC	0xd00dfeed	/* 4: version, 4: total size */
  #define FDT_TAGSIZE	sizeof(fdt32_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(fdt32_t))
  #define FDT_V2_SIZE	(FDT_V1_SIZE + sizeof(fdt32_t))
  #define FDT_V3_SIZE	(FDT_V2_SIZE + sizeof(fdt32_t))
  #define FDT_V16_SIZE	FDT_V3_SIZE
  #define FDT_V17_SIZE	(FDT_V16_SIZE + sizeof(fdt32_t))
  
  #endif /* _FDT_H */