xref: /linux-6.15/drivers/mtd/maps/map_funcs.c (revision 02b15e34)
11da177e4SLinus Torvalds /*
2*02b15e34STodd Poynor  * $Id: map_funcs.c,v 1.10 2005/06/06 23:04:36 tpoynor Exp $
31da177e4SLinus Torvalds  *
41da177e4SLinus Torvalds  * Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS
51da177e4SLinus Torvalds  * is enabled.
61da177e4SLinus Torvalds  */
71da177e4SLinus Torvalds 
81da177e4SLinus Torvalds #include <linux/kernel.h>
91da177e4SLinus Torvalds #include <linux/module.h>
101da177e4SLinus Torvalds 
111da177e4SLinus Torvalds #include <linux/mtd/map.h>
12*02b15e34STodd Poynor #include <linux/mtd/xip.h>
131da177e4SLinus Torvalds 
14*02b15e34STodd Poynor static map_word __xipram simple_map_read(struct map_info *map, unsigned long ofs)
151da177e4SLinus Torvalds {
161da177e4SLinus Torvalds 	return inline_map_read(map, ofs);
171da177e4SLinus Torvalds }
181da177e4SLinus Torvalds 
19*02b15e34STodd Poynor static void __xipram simple_map_write(struct map_info *map, const map_word datum, unsigned long ofs)
201da177e4SLinus Torvalds {
211da177e4SLinus Torvalds 	inline_map_write(map, datum, ofs);
221da177e4SLinus Torvalds }
231da177e4SLinus Torvalds 
24*02b15e34STodd Poynor static void __xipram simple_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
251da177e4SLinus Torvalds {
261da177e4SLinus Torvalds 	inline_map_copy_from(map, to, from, len);
271da177e4SLinus Torvalds }
281da177e4SLinus Torvalds 
29*02b15e34STodd Poynor static void __xipram simple_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
301da177e4SLinus Torvalds {
311da177e4SLinus Torvalds 	inline_map_copy_to(map, to, from, len);
321da177e4SLinus Torvalds }
331da177e4SLinus Torvalds 
341da177e4SLinus Torvalds void simple_map_init(struct map_info *map)
351da177e4SLinus Torvalds {
361da177e4SLinus Torvalds 	BUG_ON(!map_bankwidth_supported(map->bankwidth));
371da177e4SLinus Torvalds 
381da177e4SLinus Torvalds 	map->read = simple_map_read;
391da177e4SLinus Torvalds 	map->write = simple_map_write;
401da177e4SLinus Torvalds 	map->copy_from = simple_map_copy_from;
411da177e4SLinus Torvalds 	map->copy_to = simple_map_copy_to;
421da177e4SLinus Torvalds }
431da177e4SLinus Torvalds 
441da177e4SLinus Torvalds EXPORT_SYMBOL(simple_map_init);
451da177e4SLinus Torvalds MODULE_LICENSE("GPL");
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