buildroot

setenv bootargs console=ttyS0,115200 root=/dev/mmcblk0p1 rootwait panic=10 ${extra}

ext4load mmc 0 0x49000000 /boot/${fdtfile}

ext4load mmc 0 0x46000000 /boot/zImage

env set fdt_high ffffffff

bootz 0x46000000 - 0x49000000