drivers/mtd/maps/map_funcs.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS
   4  * is enabled.
   5  */
   6
   7 #include <linux/kernel.h>
   8 #include <linux/module.h>
   9
  10 #include <linux/mtd/map.h>
  11 #include <linux/mtd/xip.h>
  12
  13 static map_word __xipram simple_map_read(struct map_info *map, unsigned long ofs)
  14 {
  15         return inline_map_read(map, ofs);
  16 }
  17
  18 static void __xipram simple_map_write(struct map_info *map, const map_word datum, unsigned long ofs)
  19 {
  20         inline_map_write(map, datum, ofs);
  21 }
  22
  23 static void __xipram simple_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
  24 {
  25         inline_map_copy_from(map, to, from, len);
  26 }
  27
  28 static void __xipram simple_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
  29 {
  30         inline_map_copy_to(map, to, from, len);
  31 }
  32
  33 void simple_map_init(struct map_info *map)
  34 {
  35         BUG_ON(!map_bankwidth_supported(map->bankwidth));
  36
  37         map->read = simple_map_read;
  38         map->write = simple_map_write;
  39         map->copy_from = simple_map_copy_from;
  40         map->copy_to = simple_map_copy_to;
  41 }
  42
  43 EXPORT_SYMBOL(simple_map_init);
  44 MODULE_LICENSE("GPL");