b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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"); |