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authorIngo Molnar <mingo@elte.hu>2010-04-02 20:02:55 +0200
committerIngo Molnar <mingo@elte.hu>2010-04-02 20:03:08 +0200
commitc9494727cf293ae2ec66af57547a3e79c724fec2 (patch)
tree44ae197b64fa7530ee695a90ad31326dda06f1e1 /arch/arm/mach-omap1/flash.c
parent6427462bfa50f50dc6c088c07037264fcc73eca1 (diff)
parent42be79e37e264557f12860fa4cc84b4de3685954 (diff)
Merge branch 'linus' into sched/core
Merge reason: update to latest upstream Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-omap1/flash.c')
-rw-r--r--arch/arm/mach-omap1/flash.c33
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 000000000000..0b07a78eeaa7
--- /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);
+ }
+ }
+}