LIB := $(obj)libmtd.o
-COBJS-$(CONFIG_MTD_DEVICE) += mtdcore.o
+ifneq (,$(findstring y,$(CONFIG_MTD_DEVICE)$(CONFIG_CMD_NAND)$(CONFIG_CMD_ONENAND)))
+COBJS-y += mtdcore.o
+endif
COBJS-$(CONFIG_MTD_PARTITIONS) += mtdpart.o
COBJS-$(CONFIG_MTD_CONCAT) += mtdconcat.o
COBJS-$(CONFIG_HAS_DATAFLASH) += at45.o