diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 9eaf5b05c11e..68a27bccc7d4 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -400,6 +400,7 @@ static int bfin_plat_nand_dev_ready(struct mtd_info *mtd)
 
 static struct platform_nand_data bfin_plat_nand_data = {
 	.chip = {
+		.nr_chips = 1,
 		.chip_delay = 30,
 #ifdef CONFIG_MTD_PARTITIONS
 		.part_probe_types = part_probes,
diff --git a/arch/blackfin/mach-bf561/boards/acvilon.c b/arch/blackfin/mach-bf561/boards/acvilon.c
index bfcfa86db2b5..35b6d124c1e3 100644
--- a/arch/blackfin/mach-bf561/boards/acvilon.c
+++ b/arch/blackfin/mach-bf561/boards/acvilon.c
@@ -284,6 +284,7 @@ static int bfin_plat_nand_dev_ready(struct mtd_info *mtd)
 
 static struct platform_nand_data bfin_plat_nand_data = {
 	.chip = {
+		 .nr_chips = 1,
 		 .chip_delay = 30,
 #ifdef CONFIG_MTD_PARTITIONS
 		 .part_probe_types = part_probes,