diff --git a/br-ext-chip-canaan/configs/k230_canmv_01studio_defconfig b/br-ext-chip-canaan/configs/k230_canmv_01studio_defconfig
index dc7af10a..f9dd4de8 100644
--- a/br-ext-chip-canaan/configs/k230_canmv_01studio_defconfig
+++ b/br-ext-chip-canaan/configs/k230_canmv_01studio_defconfig
@@ -1,10 +1,10 @@
 BR2_riscv=y
 BR2_RISCV_ISA_RVC=y
-BR2_RISCV_ISA_RVV=y
 BR2_TOOLCHAIN_EXTERNAL=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
-BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/toolchain/Xuantie-900-gcc-linux-6.6.0-glibc-x86_64-V3.0.2/"
+BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/toolchain/Xuantie-900-gcc-linux-6.6.0-glibc-x86_64-V2.10.1/"
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="riscv64-unknown-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_10=y
 BR2_TOOLCHAIN_EXTERNAL_HEADERS_6_6=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
 # BR2_TOOLCHAIN_EXTERNAL_INET_RPC is not set
@@ -13,121 +13,19 @@ BR2_TOOLCHAIN_EXTERNAL_FORTRAN=y
 BR2_TOOLCHAIN_EXTERNAL_OPENMP=y
 BR2_TARGET_OPTIMIZATION="-mcpu=c908v"
 BR2_DL_DIR="$(TOPDIR)/../../dl"
-BR2_SYSTEM_DHCP="eth0"
-BR2_ROOTFS_OVERLAY="board/canaan/k230-soc/rootfs_overlay"
-BR2_ROOTFS_POST_BUILD_SCRIPT="board/canaan/k230-soc/post-build.sh"
+BR2_CCACHE=y
+BR2_CCACHE_DIR="$(HOME)/.ccache"
+BR2_OPTIMIZE_S=y
+BR2_GLOBAL_PATCH_DIR="$(BR2_EXTERNAL)/package/all-patches"
+BR2_SSP_REGULAR=y
+BR2_RELRO_PARTIAL=y
+BR2_TARGET_GENERIC_HOSTNAME="openipc-$(OPENIPC_SOC_MODEL)"
+BR2_TARGET_GENERIC_ISSUE="Welcome to OpenIPC"
+BR2_INIT_NONE=y
+BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL)/overlay"
+BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL)/scripts/rootfs_script.sh"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="board/canaan/k230-soc/post-image.sh"
-BR2_LINUX_KERNEL=y
-BR2_LINUX_KERNEL_CUSTOM_GIT=y
-BR2_LINUX_KERNEL_CUSTOM_REPO_URL="https://github.com/ruyisdk/linux-xuantie-kernel.git"
-BR2_LINUX_KERNEL_CUSTOM_REPO_VERSION="7d4e1f444f461dbe3833bd99a4640e7b6c2cd529"
-BR2_LINUX_KERNEL_DEFCONFIG="k230"
-BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/canaan/k230-soc/linux.fragment"
-BR2_LINUX_KERNEL_DTS_SUPPORT=y
-BR2_LINUX_KERNEL_INTREE_DTS_NAME="canaan/k230-canmv-01studio canaan/k230-canmv-01studio-lcd"
-BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
-BR2_PACKAGE_LINUX_TOOLS_GPIO=y
-BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="board/canaan/k230-soc/busybox.fragment"
-BR2_PACKAGE_ALSA_UTILS_AMIXER=y
-BR2_PACKAGE_ALSA_UTILS_APLAY=y
-BR2_PACKAGE_COREMARK=y
-BR2_PACKAGE_COREMARK_PRO=y
-BR2_PACKAGE_E2FSPROGS=y
-BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
-BR2_PACKAGE_EVTEST=y
-BR2_PACKAGE_PARTED=y
-BR2_PACKAGE_RTL8189FS=y
-BR2_PACKAGE_SPI_TOOLS=y
-BR2_PACKAGE_PYTHON3=y
-BR2_PACKAGE_PYTHON3_PY_PYC=y
-BR2_PACKAGE_PYTHON3_BZIP2=y
-BR2_PACKAGE_PYTHON3_DECIMAL=y
-BR2_PACKAGE_PYTHON3_READLINE=y
-BR2_PACKAGE_PYTHON3_SQLITE=y
-BR2_PACKAGE_PYTHON3_XZ=y
-BR2_PACKAGE_PYTHON_PIP=y
-BR2_PACKAGE_OPUS=y
-BR2_PACKAGE_FREETYPE=y
-BR2_PACKAGE_LIBDRM_INSTALL_TESTS=y
-BR2_PACKAGE_OPENCV4=y
-BR2_PACKAGE_OPENCV4_LIB_HIGHGUI=y
-BR2_PACKAGE_OPENCV4_LIB_PYTHON=y
-BR2_PACKAGE_OPENCV4_LIB_VIDEO=y
-BR2_PACKAGE_OPENCV4_WITH_FFMPEG=y
-BR2_PACKAGE_OPENCV4_WITH_JPEG=y
-BR2_PACKAGE_OPENCV4_WITH_PNG=y
-BR2_PACKAGE_OPENCV4_WITH_V4L=y
-BR2_PACKAGE_OPENCV4_WITH_WEBP=y
-BR2_PACKAGE_OPENCV4_CONTRIB=y
-BR2_PACKAGE_LIBGPIOD=y
-BR2_PACKAGE_LIBGPIOD_TOOLS=y
-BR2_PACKAGE_LIBV4L=y
-BR2_PACKAGE_LIBV4L_UTILS=y
-BR2_PACKAGE_CJSON=y
-BR2_PACKAGE_CJSON_UTILS=y
-BR2_PACKAGE_LIVE555=y
-BR2_PACKAGE_LIBCURL=y
-BR2_PACKAGE_LIBTIRPC=y
-BR2_PACKAGE_BLUEZ_TOOLS=y
-BR2_PACKAGE_BLUEZ5_UTILS=y
-BR2_PACKAGE_BLUEZ5_UTILS_TOOLS=y
-BR2_PACKAGE_BLUEZ5_UTILS_DEPRECATED=y
-BR2_PACKAGE_HOSTAPD=y
-BR2_PACKAGE_HOSTAPD_EAP=y
-BR2_PACKAGE_HOSTAPD_WPS=y
-BR2_PACKAGE_HOSTAPD_WPA3=y
-BR2_PACKAGE_IPERF3=y
-BR2_PACKAGE_LRZSZ=y
-BR2_PACKAGE_NTP=y
-BR2_PACKAGE_NTP_SNTP=y
-BR2_PACKAGE_NTP_NTP_KEYGEN=y
-BR2_PACKAGE_NTP_NTPDATE=y
-BR2_PACKAGE_OPENSSH=y
-BR2_PACKAGE_WIRELESS_TOOLS=y
-BR2_PACKAGE_WIRELESS_TOOLS_LIB=y
-BR2_PACKAGE_WPA_SUPPLICANT=y
-BR2_PACKAGE_WPA_SUPPLICANT_WEXT=y
-BR2_PACKAGE_WPA_SUPPLICANT_WIRED=y
-BR2_PACKAGE_WPA_SUPPLICANT_IBSS_RSN=y
-BR2_PACKAGE_WPA_SUPPLICANT_AP_SUPPORT=y
-BR2_PACKAGE_WPA_SUPPLICANT_WIFI_DISPLAY=y
-BR2_PACKAGE_WPA_SUPPLICANT_MESH_NETWORKING=y
-BR2_PACKAGE_WPA_SUPPLICANT_OVERRIDES=y
-BR2_PACKAGE_WPA_SUPPLICANT_AUTOSCAN=y
-BR2_PACKAGE_WPA_SUPPLICANT_HOTSPOT=y
-BR2_PACKAGE_WPA_SUPPLICANT_DEBUG_SYSLOG=y
-BR2_PACKAGE_WPA_SUPPLICANT_WPS=y
-BR2_PACKAGE_WPA_SUPPLICANT_WPA3=y
-BR2_PACKAGE_WPA_SUPPLICANT_CLI=y
-BR2_PACKAGE_WPA_SUPPLICANT_WPA_CLIENT_SO=y
-BR2_PACKAGE_WPA_SUPPLICANT_PASSPHRASE=y
-BR2_PACKAGE_WPA_SUPPLICANT_DBUS=y
-BR2_PACKAGE_WPA_SUPPLICANT_DBUS_INTROSPECTION=y
-BR2_PACKAGE_LIBMMZ=y
-BR2_PACKAGE_LIBNNCASE=y
-BR2_PACKAGE_FACE_DETECT=y
-BR2_PACKAGE_AI2D_KPU=y
-BR2_PACKAGE_HELLOWORLD_CMAKE=y
-BR2_PACKAGE_VVCAM=y
-BR2_PACKAGE_VVCAM_DEF_SENSOR="gc2093"
-BR2_PACKAGE_AUDIO_DEMO=y
-BR2_PACKAGE_LIB_RTSPSERVER=y
-BR2_PACKAGE_MVX_PLAYER=y
-BR2_PACKAGE_CAMERA_RTSP_DEMO=y
-BR2_PACKAGE_AUDIO_REC_PLAY=y
-BR2_PACKAGE_VG_LITE_DEMOS=y
+# BR2_PACKAGE_BUSYBOX is not set
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
 BR2_TARGET_ROOTFS_EXT2_SIZE="300M"
-BR2_TARGET_OPENSBI=y
-BR2_TARGET_OPENSBI_CUSTOM_VERSION=y
-BR2_TARGET_OPENSBI_CUSTOM_VERSION_VALUE="1.4"
-BR2_TARGET_OPENSBI_PLAT="generic"
-# BR2_TARGET_OPENSBI_INSTALL_DYNAMIC_IMG is not set
-BR2_TARGET_OPENSBI_LINUX_PAYLOAD=y
-BR2_TARGET_OPENSBI_ADDITIONAL_VARIABLES="FW_TEXT_START=0"
-BR2_TARGET_UBOOT=y
-BR2_TARGET_UBOOT_BOARDNAME="k230_canmv_01studio"
-BR2_TARGET_UBOOT_CUSTOM_VERSION=y
-BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2022.10"
-BR2_PACKAGE_HOST_GENIMAGE=y