1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/flash.c b/arch/arm/mach-omap1/flash.c
new file mode 100644
index 0000000..0b07a78
--- /dev/null
+++ b/arch/arm/mach-omap1/flash.c
@@ -0,0 +1,33 @@
+/*
+ * Flash support for OMAP1
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+
+#include <plat/io.h>
+#include <plat/tc.h>
+
+void omap1_set_vpp(struct map_info *map, int enable)
+{
+	static int count;
+	u32 l;
+
+	if (enable) {
+		if (count++ == 0) {
+			l = omap_readl(EMIFS_CONFIG);
+			l |= OMAP_EMIFS_CONFIG_WP;
+			omap_writel(l, EMIFS_CONFIG);
+		}
+	} else {
+		if (count && (--count == 0)) {
+			l = omap_readl(EMIFS_CONFIG);
+			l &= ~OMAP_EMIFS_CONFIG_WP;
+			omap_writel(l, EMIFS_CONFIG);
+		}
+	}
+}