setenv create_bcb 'nand erase.part mx7-bcb && writebcb 80000 200000'
setenv update_configblock 'fatload ${interface} 0:1 ${loadaddr} ${board_name}/configblock.bin && nand write ${loadaddr} 0x800 ${filesize} && nand write ${loadaddr} 0x20800 ${filesize}'

setenv prepare_rootfs 'ubi part ubi && ubi check rootfs || ubi create rootfs'
setenv update_uboot 'fatload ${interface} 0:1 ${loadaddr} ${board_name}/u-boot-nand.imx && nand erase.part u-boot && nand erase.part u-boot-env && writeboot ${loadaddr} 80000 200000 $filesize'
setenv update_rootfs 'fatload ${interface} 0:1 ${loadaddr} ${board_name}/ubifs.img && run prepare_rootfs && ubi write ${loadaddr} rootfs ${filesize}'

setenv update 'mtdparts default; run update_uboot; run update_rootfs; reset'

echo 'enter "run update" to update the entire module'