LXR linux/scripts/dtc/libfdt/libfdt

   1/* SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) */
   2#ifndef LIBFDT_INTERNAL_H
   3#define LIBFDT_INTERNAL_H
   4/*
   5 * libfdt - Flat Device Tree manipulation
   6 * Copyright (C) 2006 David Gibson, IBM Corporation.
   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
  13int fdt_ro_probe_(const void *fdt);
  14#define FDT_RO_PROBE(fdt)                       \
  15        { \
  16                int err_; \
  17                if ((err_ = fdt_ro_probe_(fdt)) != 0)   \
  18                        return err_; \
  19        }
  20
  21int fdt_check_node_offset_(const void *fdt, int offset);
  22int fdt_check_prop_offset_(const void *fdt, int offset);
  23const char *fdt_find_string_(const char *strtab, int tabsize, const char *s);
  24int fdt_node_end_offset_(void *fdt, int nodeoffset);
  25
  26static inline const void *fdt_offset_ptr_(const void *fdt, int offset)
  27{
  28        return (const char *)fdt + fdt_off_dt_struct(fdt) + offset;
  29}
  30
  31static inline void *fdt_offset_ptr_w_(void *fdt, int offset)
  32{
  33        return (void *)(uintptr_t)fdt_offset_ptr_(fdt, offset);
  34}
  35
  36static inline const struct fdt_reserve_entry *fdt_mem_rsv_(const void *fdt, int n)
  37{
  38        const struct fdt_reserve_entry *rsv_table =
  39                (const struct fdt_reserve_entry *)
  40                ((const char *)fdt + fdt_off_mem_rsvmap(fdt));
  41
  42        return rsv_table + n;
  43}
  44static inline struct fdt_reserve_entry *fdt_mem_rsv_w_(void *fdt, int n)
  45{
  46        return (void *)(uintptr_t)fdt_mem_rsv_(fdt, n);
  47}
  48
  49#define FDT_SW_MAGIC            (~FDT_MAGIC)
  50
  51#endif /* LIBFDT_INTERNAL_H */
  52