ARM: cpu topology: Add debugfs interface for cpu_power
[cmplus.git] / arch / arm / mach-omap1 / flash.c
blob1749cb37dda0365985e6da1cc79e632f8564061b
1 /*
2 * Flash support for OMAP1
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 */
9 #include <linux/mtd/mtd.h>
10 #include <linux/mtd/map.h>
12 #include <plat/io.h>
13 #include <plat/tc.h>
14 #include <plat/flash.h>
16 void omap1_set_vpp(struct platform_device *pdev, int enable)
18 static int count;
19 u32 l;
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);
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);