diff --git a/board/samsung/smdk6400/lowlevel_init.S b/board/samsung/smdk6400/lowlevel_init.S
index e0119a771c55c703b909789c2092d724b59cc585..47f72f6132efc0d835329beb8bc0524bd4bd098a 100644
--- a/board/samsung/smdk6400/lowlevel_init.S
+++ b/board/samsung/smdk6400/lowlevel_init.S
@@ -104,6 +104,13 @@ lowlevel_init:
 	bl nand_asm_init
 #endif
 
+	/* Memory subsystem address 0x7e00f120 */
+	ldr	r0, =ELFIN_MEM_SYS_CFG
+
+	/* Xm0CSn2 = NFCON CS0, Xm0CSn3 = NFCON CS1 */
+	mov	r1, #S3C64XX_MEM_SYS_CFG_NAND
+	str	r1, [r0]
+
 	bl	mem_ctrl_asm_init
 
 /* Wakeup support. Don't know if it's going to be used, untested. */
diff --git a/cpu/arm1176/s3c64xx/cpu_init.S b/cpu/arm1176/s3c64xx/cpu_init.S
index 08bda99fdc52e870fb54d3b0d83db3477a7ef2fd..32bb467f2f64c6b7e216b5bcc65b92b60acbd397 100644
--- a/cpu/arm1176/s3c64xx/cpu_init.S
+++ b/cpu/arm1176/s3c64xx/cpu_init.S
@@ -28,13 +28,6 @@
 
 	.globl mem_ctrl_asm_init
 mem_ctrl_asm_init:
-	/* Memory subsystem address 0x7e00f120 */
-	ldr	r0, =ELFIN_MEM_SYS_CFG
-
-	/* Xm0CSn2 = NFCON CS0, Xm0CSn3 = NFCON CS1 */
-	mov	r1, #0xd
-	str	r1, [r0]
-
 	/* DMC1 base address 0x7e001000 */
 	ldr	r0, =ELFIN_DMC1_BASE
 
diff --git a/include/s3c6400.h b/include/s3c6400.h
index fd3e99bcfa21633306be0e15fb8af26a3af2f5b6..d3f136d91f0dc1ed0f8359345b03c02ca9ad799f 100644
--- a/include/s3c6400.h
+++ b/include/s3c6400.h
@@ -380,6 +380,11 @@
  */
 #define ELFIN_MEM_SYS_CFG	0x7e00f120
 
+#define S3C64XX_MEM_SYS_CFG_16BIT	(1 << 12)
+
+#define S3C64XX_MEM_SYS_CFG_NAND	0x0008
+#define S3C64XX_MEM_SYS_CFG_ONENAND	S3C64XX_MEM_SYS_CFG_16BIT
+
 #define GPACON		(ELFIN_GPIO_BASE + GPACON_OFFSET)
 #define GPADAT		(ELFIN_GPIO_BASE + GPADAT_OFFSET)
 #define GPAPUD		(ELFIN_GPIO_BASE + GPAPUD_OFFSET)