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
13static map_word __xipram simple_map_read(struct map_info *map, unsigned long ofs)
14{
15 return inline_map_read(map, ofs);
16}
17
18static 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
23static 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
28static 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
33void 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
43EXPORT_SYMBOL(simple_map_init);
44MODULE_LICENSE("GPL");
45

source code of linux/drivers/mtd/maps/map_funcs.c