/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */ #ifndef FDT_H #define FDT_H /* * libfdt - Flat Device Tree manipulation * Copyright (C) 2006 David Gibson, IBM Corporation. * Copyright 2012 Kim Phillips, Freescale Semiconductor. */ #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[]; }; struct fdt_property { fdt32_t tag; fdt32_t len; fdt32_t nameoff; char data[]; }; #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 */