board/mangopi/mq1rdw2/rootfs_overlay/boot/extlinux/extlinux.conf

label MANGOPI-MQ1RDW2
    kernel /boot/zImage
    devicetree /boot/sun8i-t113s-mangopi-mq-r-t113.dtb
    append console=ttyS3,115200 root=/dev/mmcblk0p1 rootwait panic=10 ${extra}