config BR2_BOARD_M5STACK_NAME string "m5stack board name" default "AX630C_emmc_arm64_k419" help AX630C_emmc_arm64_k419, AX650_emmc. config BR2_M5STACK_BSP_SUPPORT_OPT string "opt.tar.gz url" default "" help Support for the OPT files required by the system. config BR2_M5STACK_BSP_SUPPORT_OPT_SHA256 string "opt.tar.gz sha256" default "" help Support for the OPT files sha256 required by the system. config BR2_M5STACK_BSP_SUPPORT_SOC string "soc.tar.gz url" default "" help Support for the SOC files required by the system. config BR2_M5STACK_BSP_SUPPORT_SOC_SHA256 string "soc.tar.gz sha256" default "" help Support for the SOC files sha256 required by the system. config BR2_M5STACK_BSP_SUPPORT_IMAGE_OVERLAY string "image_overlay.tar.gz url" default "" help Boot firmware required by AXP. config BR2_M5STACK_BSP_SUPPORT_IMAGE_OVERLAY_SHA256 string "image_overlay.tar.gz sha256" default "" help Boot firmware sha256 required by AXP.