BOARD_TYPE=ark1668ed_devb_emmc BOOTSTRAP_DIR=ark1668ed_board UBOOT_CONFIG_FILE=ark1668ed_devb_emmc_defconfig LINUX_CONFIG_FILE=ark1668ed_devb_emmc_defconfig BR_CONFIG_FILE=ark1668ed_devb_emmc_defconfig DTB_FILE_NAME=ark1668ed_devb_emmc.dtb BR_DIR=buildroot-2024.02.11 TOOLCHAIN_CROSS_COMPILE=arm-none-linux-gnueabihf-