1RK_YOCTO_CFG="rockchip-rk3568-evb" 2RK_WIFIBT_TTY="ttyS8" 3RK_KERNEL_VERSION="5.10" 4RK_KERNEL_DTS_NAME="OK3568-C-linux" 5RK_PARAMETER="parameter-buildroot-fit.txt" 6RK_USE_FIT_IMG=y 7