mainmenu "RT-Thread Project Configuration" config BSP_DIR string option env="BSP_ROOT" default "." config RTT_DIR string option env="RTT_ROOT" default "../../.." config PKGS_DIR string option env="PKGS_ROOT" default "packages" source "$RTT_DIR/Kconfig" source "$PKGS_DIR/Kconfig" config BCM2711_SOC bool select ARCH_ARMV8 select RT_USING_CACHE select RT_USING_COMPONENTS_INIT select RT_USING_USER_MAIN select RT_USING_GIC_V2 default y source "driver/Kconfig"