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 15void 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} 34