From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001
From: root <root@artemis.panaceas.org>
Date: Fri, 25 Dec 2015 04:40:36 +0000
Subject: initial_commit

---
 arch/arm/mach-omap1/flash.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 arch/arm/mach-omap1/flash.c

(limited to 'arch/arm/mach-omap1/flash.c')

diff --git a/arch/arm/mach-omap1/flash.c b/arch/arm/mach-omap1/flash.c
new file mode 100644
index 00000000..1749cb37
--- /dev/null
+++ b/arch/arm/mach-omap1/flash.c
@@ -0,0 +1,34 @@
+/*
+ * 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>
+#include <plat/flash.h>
+
+void omap1_set_vpp(struct platform_device *pdev, 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);
+		}
+	}
+}
-- 
cgit v1.2.3