cat /boot/extlinux/extlinux.conf && echo
label kernel
    kernel /boot/Image
    initrd /boot/uInitrd
    fdtdir /boot/rockchip/
    fdt /boot/rockchip/rk3328-roc-cc.dtb
    append earlyprintk console=tty1 console=ttyS2,1500000 rw root=PARTUUID=b2f504a3-01 rootwait rootfstype=ext4 init=/sbin/init

patrick@renegade:~$ dmesg | grep model
[    0.000000] Machine model: Firefly roc-rk3328-cc