040000 tree 2f903a95153f215fa69763726d061533748227ab	arm-trusted-firmware
040000 tree 7f2e1663a1c65bbc67632ec02409b3bc64b02728	device-tree
040000 tree 395940204c30fdfe2034433856d32f370fe2759d	kernel
040000 tree 7426bf3d378d20e1441bc4421c27a16a3743b9a0	optee