diff --git a/include/configs/m53evk.h b/include/configs/m53evk.h
index bd67603b50a205dbe614bb7b316c41689b1a175e..3e0a618634af8664ffc90ac5be839a3cd11b6daf 100644
--- a/include/configs/m53evk.h
+++ b/include/configs/m53evk.h
@@ -52,7 +52,9 @@
 #define PHYS_SDRAM_SIZE			(PHYS_SDRAM_1_SIZE + PHYS_SDRAM_2_SIZE)
 #define CONFIG_SYS_MALLOC_LEN		(10 * 1024 * 1024)
 #define CONFIG_SYS_MEMTEST_START	0x70000000
-#define CONFIG_SYS_MEMTEST_END		0xaff00000
+#define CONFIG_SYS_MEMTEST_END		0x8ff00000
+#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)