source /my-imx6/03_tools/myimx6_31452_build_env
用echo $ARCH
echo $GCC_PATH
echo $CROSS_COMPILE
命令可以查看配置是否生效
make distclean
make myimx6ek200-6u_defconfig
make
make && cp u-boot.imx /home/myzr/srv/tftp/ && mv /home/myzr/srv/tftp/u-boot.imx /home/myzr/srv/tftp/uboot-myimx6ek200-6u.imx && chmod 777 /home/myzr/srv/tftp/uboot-myimx6ek200-6u.imx