omap: mux: Add data for 2420

Add data for 2420. Big thanks to Paul Walmsley <paul@pwsan.com>
for generating usable mux data out of TRMs.

Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/mux.h b/arch/arm/mach-omap2/mux.h
index 937a8ca..e14cd4d 100644
--- a/arch/arm/mach-omap2/mux.h
+++ b/arch/arm/mach-omap2/mux.h
@@ -7,6 +7,7 @@
  * published by the Free Software Foundation.
  */
 
+#include "mux2420.h"
 #include "mux34xx.h"
 
 #define OMAP_MUX_TERMINATOR	0xffff
@@ -173,6 +174,13 @@
 void omap_mux_write_array(struct omap_board_mux *board_mux);
 
 /**
+ * omap2420_mux_init() - initialize mux system with board specific set
+ * @board_mux:		Board specific mux table
+ * @flags:		OMAP package type used for the board
+ */
+int omap2420_mux_init(struct omap_board_mux *board_mux, int flags);
+
+/**
  * omap3_mux_init() - initialize mux system with board specific set
  * @board_mux:		Board specific mux table
  * @flags:		OMAP package type used for the board