setenv panel TFT7016_LCD（或者直接在uboot中的h文件直接修改panel值）
setenv ipaddr 192.168.1.101
setenv ethaddr 00:01:02:03:04:05
setenv gatewayip 192.168.1.1
setenv netmask 255.255.255.0
setenv serverip 192.168.1.100
nfs启动设置：
setenv bootargs 'console=ttymxc0,115200 root=/dev/nfs rw nfsroot=192.168.1.100:/home/jun/work/nfs/rootfs proto=tcp ip=192.168.1.101:192.168.1.100:192.168.1.1:255.255.255.0::eth0:off'
setenv bootcmd 'nfs 80800000 192.168.1.100:/home/jun/work/nfs/kernel/zImage; nfs 83000000 192.168.1.100:/home/jun/work/nfs/kerenl/imx6ull-my-emmc.dtb; bootz 80800000 - 83000000'
emmc启动设置：
setenv bootargs 'console=ttymxc0,115200 root=/dev/mmcblk1p2 rootwait rw'
setenv bootcmd 'mmc dev 1; fatload mmc 1:1 80800000 zImage; fatload mmc 1:1 83000000 imx6ull-my-emmc.dtb; bootz 80800000 - 83000000;'