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/generic.h b/arch/arm/mach-at91/generic.h
index aec7fd0..4cad85e 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -71,6 +71,9 @@
 /* Matrix */
 extern void at91_ioremap_matrix(u32 base_addr);
 
+/* Ram Controler */
+extern void at91_ioremap_ramc(int id, u32 addr, u32 size);
+
  /* GPIO */
 #define AT91RM9200_PQFP		3	/* AT91RM9200 PQFP package has 3 banks */
 #define AT91RM9200_BGA		4	/* AT91RM9200 BGA package has 4 banks */