I found two issues from new rk3399-rockpro64.dts file. First one is incorrect regulator mapping. Rockpro64 has bit different GPIO ports used than firefly board. Board is not able boot if GPIO pins are not inited by bootloader. Second issue is that dts have video output enabled but no outputs enabled. Kernel will freeze if CONFIG_DRM_ROCKCHIP is compiled in. Oskari Lemmela (2): arm64: dts: rockchip: rockpro64 fix regulator gpios arm64: dts: rockchip: rockpro64 fix video output chain .../boot/dts/rockchip/rk3399-rockpro64.dts | 27 +++++++++++++------ 1 file changed, 19 insertions(+), 8 deletions(-) -- 2.17.1