ARM: at91: make sdram/ddr register base soc independent

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
diff --git a/arch/arm/mach-at91/board-rm9200dk.c b/arch/arm/mach-at91/board-rm9200dk.c
index 782f379..9083df0 100644
--- a/arch/arm/mach-at91/board-rm9200dk.c
+++ b/arch/arm/mach-at91/board-rm9200dk.c
@@ -41,6 +41,7 @@
 #include <mach/hardware.h>
 #include <mach/board.h>
 #include <mach/at91rm9200_mc.h>
+#include <mach/at91_ramc.h>
 
 #include "generic.h"