config RK_AVB_LIBAVB_USER bool "Rockchip AVB support" help This config support the android things system to read/write hardware image, like vbmeta, misc, and so on. And it can provide some a/b and avb information to fastboot and kernel. config SPL_RK_AVB_LIBAVB_USER bool "Rockchip AVB support for spl" help This config support the android things system to read/write hardware image, like vbmeta, misc, and so on. And it can provide some a/b and avb information to fastboot and kernel. config TPL_RK_AVB_LIBAVB_USER bool "Rockchip AVB support for tpl" help This config support the android things system to read/write hardware image, like vbmeta, misc, and so on. And it can provide some a/b and avb information config ROCKCHIP_PRELOADER_PUB_KEY bool "Rockchip AVB use pre-loader public key" depends on AVB_LIBAVB_USER select CRYPTO_ROCKCHIP help Use pre-loader public key to decode in avb.