BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="https://github.com/paralin/u-boot-tegra/archive/45dfa3dff43f880243a9fe68f3d911e99a240654/u-boot-tegra-l4t-r32.4.2-v2016.07.tar.gz"

BR2_TARGET_UBOOT_USE_DEFCONFIG=y
BR2_TARGET_UBOOT_BOARD_DEFCONFIG="p3450-porg"