| Ladislav Michl | 561b036 | 2010-02-15 10:03:32 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Flash support for OMAP1 |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
| 9 | #include <linux/mtd/mtd.h> |
| 10 | #include <linux/mtd/map.h> |
| 11 | |
| 12 | #include <plat/io.h> |
| 13 | #include <plat/tc.h> |
| 14 | |
| 15 | void omap1_set_vpp(struct map_info *map, int enable) |
| 16 | { |
| 17 | static int count; |
| 18 | u32 l; |
| 19 | |
| 20 | if (enable) { |
| 21 | if (count++ == 0) { |
| 22 | l = omap_readl(EMIFS_CONFIG); |
| 23 | l |= OMAP_EMIFS_CONFIG_WP; |
| 24 | omap_writel(l, EMIFS_CONFIG); |
| 25 | } |
| 26 | } else { |
| 27 | if (count && (--count == 0)) { |
| 28 | l = omap_readl(EMIFS_CONFIG); |
| 29 | l &= ~OMAP_EMIFS_CONFIG_WP; |
| 30 | omap_writel(l, EMIFS_CONFIG); |
| 31 | } |
| 32 | } |
| 33 | } |