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
simple_map_read(struct map_info * map,unsigned long ofs)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
simple_map_write(struct map_info * map,const map_word datum,unsigned long ofs)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
simple_map_copy_from(struct map_info * map,void * to,unsigned long from,ssize_t len)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
simple_map_copy_to(struct map_info * map,unsigned long to,const void * from,ssize_t len)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
simple_map_init(struct map_info * map)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");
45