150276Speter/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */ 250276Speter#ifndef FDT_H 350276Speter#define FDT_H 450276Speter/* 550276Speter * libfdt - Flat Device Tree manipulation 650276Speter * Copyright (C) 2006 David Gibson, IBM Corporation. 750276Speter * Copyright 2012 Kim Phillips, Freescale Semiconductor. 850276Speter */ 950276Speter 1050276Speter#ifndef __ASSEMBLY__ 1150276Speter 1250276Speterstruct fdt_header { 1350276Speter fdt32_t magic; /* magic word FDT_MAGIC */ 1450276Speter fdt32_t totalsize; /* total size of DT block */ 1550276Speter fdt32_t off_dt_struct; /* offset to structure */ 1650276Speter fdt32_t off_dt_strings; /* offset to strings */ 1750276Speter fdt32_t off_mem_rsvmap; /* offset to memory reserve map */ 1850276Speter fdt32_t version; /* format version */ 1950276Speter fdt32_t last_comp_version; /* last compatible version */ 2050276Speter 2150276Speter /* version 2 fields below */ 2250276Speter fdt32_t boot_cpuid_phys; /* Which physical CPU id we're 2350276Speter booting on */ 2450276Speter /* version 3 fields below */ 2550276Speter fdt32_t size_dt_strings; /* size of the strings block */ 2650276Speter 2750276Speter /* version 17 fields below */ 2850276Speter fdt32_t size_dt_struct; /* size of the structure block */ 2950276Speter}; 3050276Speter 3150276Speterstruct fdt_reserve_entry { 3250276Speter fdt64_t address; 3350276Speter fdt64_t size; 3450276Speter}; 3550276Speter 3650276Speterstruct fdt_node_header { 3750276Speter fdt32_t tag; 3850276Speter char name[]; 3950276Speter}; 4050276Speter 4150276Speterstruct fdt_property { 4250276Speter fdt32_t tag; 4350276Speter fdt32_t len; 4450276Speter fdt32_t nameoff; 4550276Speter char data[]; 4650276Speter}; 4750276Speter 4850276Speter#endif /* !__ASSEMBLY */ 4950276Speter 5050276Speter#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */ 5150276Speter#define FDT_TAGSIZE sizeof(fdt32_t) 5250276Speter 5350276Speter#define FDT_BEGIN_NODE 0x1 /* Start node: full name */ 5450276Speter#define FDT_END_NODE 0x2 /* End node */ 5550276Speter#define FDT_PROP 0x3 /* Property: name off, 5650276Speter size, content */ 5750276Speter#define FDT_NOP 0x4 /* nop */ 5850276Speter#define FDT_END 0x9 5950276Speter 6050276Speter#define FDT_V1_SIZE (7*sizeof(fdt32_t)) 6150276Speter#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(fdt32_t)) 6250276Speter#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(fdt32_t)) 6350276Speter#define FDT_V16_SIZE FDT_V3_SIZE 6450276Speter#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(fdt32_t)) 6550276Speter 6650276Speter#endif /* FDT_H */ 6750276Speter