linux镜像在nand flash中吗

1, /include/configs/smdk2440.h中添加#define CONFIG_CMD_NAND编译drivers/mtd/nand/built-in.o: In function `nand_init_chip':/u-boot-2016.03/drivers/mtd/nand/nand.c:76: undefined reference to `board_nand_init'...