diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h
index 77f8567705..5bbac0dfd8 100644
--- a/include/configs/mx53loco.h
+++ b/include/configs/mx53loco.h
@@ -198,6 +198,8 @@
 #define PHYS_SDRAM_2		CSD1_BASE_ADDR
 #define PHYS_SDRAM_2_SIZE	(512 * 1024 * 1024)
 #define PHYS_SDRAM_SIZE         (PHYS_SDRAM_1_SIZE + PHYS_SDRAM_2_SIZE)
+#define CONFIG_VERY_BIG_RAM
+#define CONFIG_MAX_MEM_MAPPED	PHYS_SDRAM_1_SIZE
 
 #define CONFIG_SYS_SDRAM_BASE		(PHYS_SDRAM_1)
 #define CONFIG_SYS_INIT_RAM_ADDR	(IRAM_BASE_ADDR)