OMAP5: EMIF: Add support for DDR3 device

In OMAP5432 EMIF controlller supports DDR3 device.
This patch adds support for ddr3 device intialization and configuration.
Initialization sequence is done as specified in JEDEC specs.
This also adds support for ddr3 leveling.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/arch/arm/cpu/armv7/omap4/hwinit.c b/arch/arm/cpu/armv7/omap4/hwinit.c
index 187e938..2c34e48 100644
--- a/arch/arm/cpu/armv7/omap4/hwinit.c
+++ b/arch/arm/cpu/armv7/omap4/hwinit.c
@@ -118,6 +118,11 @@
 }
 #endif
 
+/* dummy fuction for omap4 */
+void config_data_eye_leveling_samples(u32 emif_base)
+{
+}
+
 void init_omap_revision(void)
 {
 	/*