diff --git a/board/raspberrypi4/overlay/lib/firmware/brcm/brcmfmac43455-sdio.clm_blob b/board/raspberrypi4/overlay/lib/firmware/brcm/brcmfmac43455-sdio.clm_blob
new file mode 100644
index 0000000000..3b9b5bdc15
Binary files /dev/null and b/board/raspberrypi4/overlay/lib/firmware/brcm/brcmfmac43455-sdio.clm_blob differ
diff --git a/configs/odroidxu4_defconfig.txt b/configs/odroidxu4_defconfig.txt
deleted file mode 100644
index 34a491900b..0000000000
--- a/configs/odroidxu4_defconfig.txt
+++ /dev/null
@@ -1,76 +0,0 @@
-BR2_arm=y
-BR2_cortex_a7=y
-BR2_ARM_FPU_NEON_VFPV4=y
-BR2_CCACHE=y
-BR2_CCACHE_DIR="$(TOPDIR)/.buildroot-ccache-odroidxu4"
-BR2_OPTIMIZE_2=y
-BR2_TOOLCHAIN_EXTERNAL=y
-BR2_TARGET_OPTIMIZATION="-pipe"
-BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
-BR2_TARGET_TZ_INFO=y
-BR2_ROOTFS_OVERLAY="board/common/overlay board/odroidxu4/overlay"
-BR2_ROOTFS_POST_BUILD_SCRIPT="board/common/postscript.sh"
-BR2_LINUX_KERNEL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="https://github.com/hardkernel/linux/archive/be592282a08a2493692448e365e46b52ac715b3f.tar.gz"
-BR2_LINUX_KERNEL_DEFCONFIG="odroidxu4"
-BR2_LINUX_KERNEL_DTS_SUPPORT=y
-BR2_LINUX_KERNEL_INTREE_DTS_NAME="exynos5422-odroidxu4"
-BR2_PACKAGE_BUSYBOX_CONFIG="board/common/busybox.config"
-BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
-BR2_PACKAGE_ALSA_UTILS=y
-BR2_PACKAGE_ALSA_UTILS_APLAY=y
-BR2_PACKAGE_GZIP=y
-BR2_PACKAGE_JQ=y
-BR2_PACKAGE_E2FSPROGS=y
-BR2_PACKAGE_NTFS_3G=y
-BR2_PACKAGE_B43_FIRMWARE=y
-BR2_PACKAGE_LINUX_FIRMWARE=y
-BR2_PACKAGE_LINUX_FIRMWARE_ATHEROS_7010=y
-BR2_PACKAGE_LINUX_FIRMWARE_ATHEROS_9170=y
-BR2_PACKAGE_LINUX_FIRMWARE_ATHEROS_9271=y
-BR2_PACKAGE_LINUX_FIRMWARE_BRCM_BCM43XX=y
-BR2_PACKAGE_LINUX_FIRMWARE_BRCM_BCM43XXX=y
-BR2_PACKAGE_LINUX_FIRMWARE_MWIFIEX_USB8797=y
-BR2_PACKAGE_LINUX_FIRMWARE_MWIFIEX_USB8897=y
-BR2_PACKAGE_LINUX_FIRMWARE_MEDIATEK_MT7601U=y
-BR2_PACKAGE_LINUX_FIRMWARE_RALINK_RT61=y
-BR2_PACKAGE_LINUX_FIRMWARE_RALINK_RT73=y
-BR2_PACKAGE_LINUX_FIRMWARE_RALINK_RT2XX=y
-BR2_PACKAGE_LINUX_FIRMWARE_RTL_81XX=y
-BR2_PACKAGE_LINUX_FIRMWARE_RTL_87XX=y
-BR2_PACKAGE_LINUX_FIRMWARE_RTL_88XX=y
-BR2_PACKAGE_USB_MODESWITCH_DATA=y
-BR2_PACKAGE_CA_CERTIFICATES=y
-BR2_PACKAGE_LIBSSH2=y
-BR2_PACKAGE_LIBFUSE=y
-BR2_PACKAGE_LIBCURL=y
-BR2_PACKAGE_CURL=y
-BR2_PACKAGE_LIBCAP=y
-BR2_PACKAGE_PCRE=y
-BR2_PACKAGE_PCRE_UCP=y
-BR2_PACKAGE_AUTOSSH=y
-BR2_PACKAGE_CRDA=y
-BR2_PACKAGE_DHCP=y
-BR2_PACKAGE_DHCP_CLIENT=y
-# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
-BR2_PACKAGE_IPTABLES=y
-BR2_PACKAGE_IW=y
-BR2_PACKAGE_NETCAT=y
-BR2_PACKAGE_NET_TOOLS=y
-BR2_PACKAGE_NTP=y
-BR2_PACKAGE_NTP_NTPDATE=y
-BR2_PACKAGE_OPENSSH=y
-BR2_PACKAGE_PPPD=y
-BR2_PACKAGE_WIRELESS_TOOLS=y
-BR2_PACKAGE_WPA_SUPPLICANT=y
-BR2_PACKAGE_WPA_SUPPLICANT_AUTOSCAN=y
-BR2_PACKAGE_WPA_SUPPLICANT_EAP=y
-BR2_PACKAGE_WPA_SUPPLICANT_WPS=y
-BR2_PACKAGE_WPA_SUPPLICANT_CLI=y
-BR2_PACKAGE_BASH=y
-BR2_PACKAGE_LOGROTATE=y
-BR2_PACKAGE_TAR=y
-BR2_PACKAGE_UTIL_LINUX_BINARIES=y
-BR2_PACKAGE_UTIL_LINUX_PARTX=y
-BR2_PACKAGE_NANO=y