1*a322d4c5SAndrew Jones #ifndef _FDT_H 2*a322d4c5SAndrew Jones #define _FDT_H 3*a322d4c5SAndrew Jones /* 4*a322d4c5SAndrew Jones * libfdt - Flat Device Tree manipulation 5*a322d4c5SAndrew Jones * Copyright (C) 2006 David Gibson, IBM Corporation. 6*a322d4c5SAndrew Jones * Copyright 2012 Kim Phillips, Freescale Semiconductor. 7*a322d4c5SAndrew Jones * 8*a322d4c5SAndrew Jones * libfdt is dual licensed: you can use it either under the terms of 9*a322d4c5SAndrew Jones * the GPL, or the BSD license, at your option. 10*a322d4c5SAndrew Jones * 11*a322d4c5SAndrew Jones * a) This library is free software; you can redistribute it and/or 12*a322d4c5SAndrew Jones * modify it under the terms of the GNU General Public License as 13*a322d4c5SAndrew Jones * published by the Free Software Foundation; either version 2 of the 14*a322d4c5SAndrew Jones * License, or (at your option) any later version. 15*a322d4c5SAndrew Jones * 16*a322d4c5SAndrew Jones * This library is distributed in the hope that it will be useful, 17*a322d4c5SAndrew Jones * but WITHOUT ANY WARRANTY; without even the implied warranty of 18*a322d4c5SAndrew Jones * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19*a322d4c5SAndrew Jones * GNU General Public License for more details. 20*a322d4c5SAndrew Jones * 21*a322d4c5SAndrew Jones * You should have received a copy of the GNU General Public 22*a322d4c5SAndrew Jones * License along with this library; if not, write to the Free 23*a322d4c5SAndrew Jones * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, 24*a322d4c5SAndrew Jones * MA 02110-1301 USA 25*a322d4c5SAndrew Jones * 26*a322d4c5SAndrew Jones * Alternatively, 27*a322d4c5SAndrew Jones * 28*a322d4c5SAndrew Jones * b) Redistribution and use in source and binary forms, with or 29*a322d4c5SAndrew Jones * without modification, are permitted provided that the following 30*a322d4c5SAndrew Jones * conditions are met: 31*a322d4c5SAndrew Jones * 32*a322d4c5SAndrew Jones * 1. Redistributions of source code must retain the above 33*a322d4c5SAndrew Jones * copyright notice, this list of conditions and the following 34*a322d4c5SAndrew Jones * disclaimer. 35*a322d4c5SAndrew Jones * 2. Redistributions in binary form must reproduce the above 36*a322d4c5SAndrew Jones * copyright notice, this list of conditions and the following 37*a322d4c5SAndrew Jones * disclaimer in the documentation and/or other materials 38*a322d4c5SAndrew Jones * provided with the distribution. 39*a322d4c5SAndrew Jones * 40*a322d4c5SAndrew Jones * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 41*a322d4c5SAndrew Jones * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 42*a322d4c5SAndrew Jones * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 43*a322d4c5SAndrew Jones * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 44*a322d4c5SAndrew Jones * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 45*a322d4c5SAndrew Jones * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 46*a322d4c5SAndrew Jones * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 47*a322d4c5SAndrew Jones * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 48*a322d4c5SAndrew Jones * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 49*a322d4c5SAndrew Jones * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 50*a322d4c5SAndrew Jones * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 51*a322d4c5SAndrew Jones * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 52*a322d4c5SAndrew Jones * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 53*a322d4c5SAndrew Jones */ 54*a322d4c5SAndrew Jones 55*a322d4c5SAndrew Jones #ifndef __ASSEMBLY__ 56*a322d4c5SAndrew Jones 57*a322d4c5SAndrew Jones struct fdt_header { 58*a322d4c5SAndrew Jones fdt32_t magic; /* magic word FDT_MAGIC */ 59*a322d4c5SAndrew Jones fdt32_t totalsize; /* total size of DT block */ 60*a322d4c5SAndrew Jones fdt32_t off_dt_struct; /* offset to structure */ 61*a322d4c5SAndrew Jones fdt32_t off_dt_strings; /* offset to strings */ 62*a322d4c5SAndrew Jones fdt32_t off_mem_rsvmap; /* offset to memory reserve map */ 63*a322d4c5SAndrew Jones fdt32_t version; /* format version */ 64*a322d4c5SAndrew Jones fdt32_t last_comp_version; /* last compatible version */ 65*a322d4c5SAndrew Jones 66*a322d4c5SAndrew Jones /* version 2 fields below */ 67*a322d4c5SAndrew Jones fdt32_t boot_cpuid_phys; /* Which physical CPU id we're 68*a322d4c5SAndrew Jones booting on */ 69*a322d4c5SAndrew Jones /* version 3 fields below */ 70*a322d4c5SAndrew Jones fdt32_t size_dt_strings; /* size of the strings block */ 71*a322d4c5SAndrew Jones 72*a322d4c5SAndrew Jones /* version 17 fields below */ 73*a322d4c5SAndrew Jones fdt32_t size_dt_struct; /* size of the structure block */ 74*a322d4c5SAndrew Jones }; 75*a322d4c5SAndrew Jones 76*a322d4c5SAndrew Jones struct fdt_reserve_entry { 77*a322d4c5SAndrew Jones fdt64_t address; 78*a322d4c5SAndrew Jones fdt64_t size; 79*a322d4c5SAndrew Jones }; 80*a322d4c5SAndrew Jones 81*a322d4c5SAndrew Jones struct fdt_node_header { 82*a322d4c5SAndrew Jones fdt32_t tag; 83*a322d4c5SAndrew Jones char name[0]; 84*a322d4c5SAndrew Jones }; 85*a322d4c5SAndrew Jones 86*a322d4c5SAndrew Jones struct fdt_property { 87*a322d4c5SAndrew Jones fdt32_t tag; 88*a322d4c5SAndrew Jones fdt32_t len; 89*a322d4c5SAndrew Jones fdt32_t nameoff; 90*a322d4c5SAndrew Jones char data[0]; 91*a322d4c5SAndrew Jones }; 92*a322d4c5SAndrew Jones 93*a322d4c5SAndrew Jones #endif /* !__ASSEMBLY */ 94*a322d4c5SAndrew Jones 95*a322d4c5SAndrew Jones #define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */ 96*a322d4c5SAndrew Jones #define FDT_TAGSIZE sizeof(fdt32_t) 97*a322d4c5SAndrew Jones 98*a322d4c5SAndrew Jones #define FDT_BEGIN_NODE 0x1 /* Start node: full name */ 99*a322d4c5SAndrew Jones #define FDT_END_NODE 0x2 /* End node */ 100*a322d4c5SAndrew Jones #define FDT_PROP 0x3 /* Property: name off, 101*a322d4c5SAndrew Jones size, content */ 102*a322d4c5SAndrew Jones #define FDT_NOP 0x4 /* nop */ 103*a322d4c5SAndrew Jones #define FDT_END 0x9 104*a322d4c5SAndrew Jones 105*a322d4c5SAndrew Jones #define FDT_V1_SIZE (7*sizeof(fdt32_t)) 106*a322d4c5SAndrew Jones #define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(fdt32_t)) 107*a322d4c5SAndrew Jones #define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(fdt32_t)) 108*a322d4c5SAndrew Jones #define FDT_V16_SIZE FDT_V3_SIZE 109*a322d4c5SAndrew Jones #define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(fdt32_t)) 110*a322d4c5SAndrew Jones 111*a322d4c5SAndrew Jones #endif /* _FDT_H */ 112