xref: /linux/drivers/mtd/maps/map_funcs.c (revision c0c914eca7f251c70facc37dfebeaf176601918d)
1 /*
2  * Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS
3  * is enabled.
4  */
5 
6 #include <linux/kernel.h>
7 #include <linux/module.h>
8 
9 #include <linux/mtd/map.h>
10 #include <linux/mtd/xip.h>
11 
12 static map_word __xipram simple_map_read(struct map_info *map, unsigned long ofs)
13 {
14 	return inline_map_read(map, ofs);
15 }
16 
17 static void __xipram simple_map_write(struct map_info *map, const map_word datum, unsigned long ofs)
18 {
19 	inline_map_write(map, datum, ofs);
20 }
21 
22 static void __xipram simple_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
23 {
24 	inline_map_copy_from(map, to, from, len);
25 }
26 
27 static void __xipram simple_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
28 {
29 	inline_map_copy_to(map, to, from, len);
30 }
31 
32 void simple_map_init(struct map_info *map)
33 {
34 	BUG_ON(!map_bankwidth_supported(map->bankwidth));
35 
36 	map->read = simple_map_read;
37 	map->write = simple_map_write;
38 	map->copy_from = simple_map_copy_from;
39 	map->copy_to = simple_map_copy_to;
40 }
41 
42 EXPORT_SYMBOL(simple_map_init);
43 MODULE_LICENSE("GPL");
44