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 #include <plat/flash.h> 15 16 void omap1_set_vpp(struct platform_device *pdev, int enable) 17 { 18 static int count; 19 u32 l; 20 21 if (enable) { 22 if (count++ == 0) { 23 l = omap_readl(EMIFS_CONFIG); 24 l |= OMAP_EMIFS_CONFIG_WP; 25 omap_writel(l, EMIFS_CONFIG); 26 } 27 } else { 28 if (count && (--count == 0)) { 29 l = omap_readl(EMIFS_CONFIG); 30 l &= ~OMAP_EMIFS_CONFIG_WP; 31 omap_writel(l, EMIFS_CONFIG); 32 } 33 } 34 } 35