1 #ifndef _LIBFDT_INTERNAL_H 2 #define _LIBFDT_INTERNAL_H 3 /* 4 * libfdt - Flat Device Tree manipulation 5 * Copyright (C) 2006 David Gibson, IBM Corporation. 6 * SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause 7 */ 8 #include <fdt.h> 9 10 #define FDT_ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) 11 #define FDT_TAGALIGN(x) (FDT_ALIGN((x), FDT_TAGSIZE)) 12 13 #define FDT_CHECK_HEADER(fdt) \ 14 { \ 15 int __err; \ 16 if ((__err = fdt_check_header(fdt)) != 0) \ 17 return __err; \ 18 } 19 20 int _fdt_check_node_offset(const void *fdt, int offset); 21 int _fdt_check_prop_offset(const void *fdt, int offset); 22 const char *_fdt_find_string(const char *strtab, int tabsize, const char *s); 23 int _fdt_node_end_offset(void *fdt, int nodeoffset); 24 25 static inline const void *_fdt_offset_ptr(const void *fdt, int offset) 26 { 27 return (const char *)fdt + fdt_off_dt_struct(fdt) + offset; 28 } 29 30 static inline void *_fdt_offset_ptr_w(void *fdt, int offset) 31 { 32 return (void *)(uintptr_t)_fdt_offset_ptr(fdt, offset); 33 } 34 35 static inline const struct fdt_reserve_entry *_fdt_mem_rsv(const void *fdt, int n) 36 { 37 const struct fdt_reserve_entry *rsv_table = 38 (const struct fdt_reserve_entry *) 39 ((const char *)fdt + fdt_off_mem_rsvmap(fdt)); 40 41 return rsv_table + n; 42 } 43 static inline struct fdt_reserve_entry *_fdt_mem_rsv_w(void *fdt, int n) 44 { 45 return (void *)(uintptr_t)_fdt_mem_rsv(fdt, n); 46 } 47 48 #define FDT_SW_MAGIC (~FDT_MAGIC) 49 50 #endif /* _LIBFDT_INTERNAL_H */ 51