in case anyone wants to give my self built u-boot a try with his rk3318 box, it is attached here. just download it and also get the trust.img from: then image the rk-aml-aw image from here to an sd-card, add the rockchip rk3328 u-boot for it like described at the bottom of the first post there (most probably this step is not really required, as the relevant part will be overwritten soon, but it can't be wrong). then add and reference the attached rk3318-t9-mainline.dtb (because those image