diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index d1c85484c2e24d559bf37719ac436bf81c0f3b9a..37b3e48a21d1b6d37741857dfbe170af5e2be7b8 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -400,6 +400,7 @@ static struct mtd_partition mityomapl138_nandflash_partition[] = {
 };
 
 static struct davinci_nand_pdata mityomapl138_nandflash_data = {
+	.core_chipsel	= 1,
 	.parts		= mityomapl138_nandflash_partition,
 	.nr_parts	= ARRAY_SIZE(mityomapl138_nandflash_partition),
 	.ecc_mode	= NAND_ECC_HW,