diff --git a/bsp/cvitek/README.md b/bsp/cvitek/README.md
old mode 100755
new mode 100644
index 91b99895de..913c921883
--- a/bsp/cvitek/README.md
+++ b/bsp/cvitek/README.md
@@ -128,9 +128,11 @@ export RTT_EXEC_PATH=/opt/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu/bin
 ## 4.2. 依赖安装
 
 ```shell
-$ sudo apt install -y scons libncurses5-dev device-tree-compiler u-boot-tools
+$ sudo apt install -y scons libncurses5-dev device-tree-compiler u-boot-tools xz-utils
 ```
 
+其中 u-boot-tools 包含了打包需要的 mkimage, xz-utils 包含了打包需要的 lzma。
+
 ## 4.3. 构建
 
 异构芯片需单独编译每个核的 OS，在大/小核对应的目录下，依次执行:
diff --git a/bsp/cvitek/cv18xx_aarch64/combine.sh b/bsp/cvitek/cv18xx_aarch64/combine.sh
index af53969004..07767e8bba 100755
--- a/bsp/cvitek/cv18xx_aarch64/combine.sh
+++ b/bsp/cvitek/cv18xx_aarch64/combine.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 C906_LITTLE_BIN_PATH=../c906_little/rtthread.bin
-GEN_FIP_PATH=../output/milkv-duo256m/
-DEPENDS_FILE_PATH=./prebuild/milkv-duo256m
+GEN_FIP_PATH=../output/duo256m/
+DEPENDS_FILE_PATH=./prebuild/duo256m
 
 BLCP_IMG_RUNADDR=0x05200200
 BLCP_PARAM_LOADADDR=0
diff --git a/bsp/cvitek/cv18xx_aarch64/dtb/milkv-duo256m/multi.its b/bsp/cvitek/cv18xx_aarch64/dtb/duo256m/multi.its
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/dtb/milkv-duo256m/multi.its
rename to bsp/cvitek/cv18xx_aarch64/dtb/duo256m/multi.its
diff --git a/bsp/cvitek/cv18xx_aarch64/dtb/milkv-duo256m/sg2002_milkv_duo256m_arm_sd.dtb b/bsp/cvitek/cv18xx_aarch64/dtb/duo256m/sg2002_milkv_duo256m_arm_sd.dtb
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/dtb/milkv-duo256m/sg2002_milkv_duo256m_arm_sd.dtb
rename to bsp/cvitek/cv18xx_aarch64/dtb/duo256m/sg2002_milkv_duo256m_arm_sd.dtb
diff --git a/bsp/cvitek/cv18xx_aarch64/mksdimg.sh b/bsp/cvitek/cv18xx_aarch64/mksdimg.sh
new file mode 100755
index 0000000000..75c7caf194
--- /dev/null
+++ b/bsp/cvitek/cv18xx_aarch64/mksdimg.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+set -e
+
+PROJECT_PATH=$1
+IMAGE_NAME=$2
+
+if [ -z "$PROJECT_PATH" ] || [ -z "$IMAGE_NAME" ]; then
+	echo "Usage: $0 <PROJECT_DIR> <IMAGE_NAME>"
+	exit 1
+fi
+
+ROOT_PATH=$PROJECT_PATH/..
+
+source ${ROOT_PATH}/tools.sh
+
+BOARD_TYPE=`get_board_type $PROJECT_PATH`
+
+echo "start compress kernel..."
+
+lzma -c -9 -f -k ${PROJECT_PATH}/${IMAGE_NAME} > ${PROJECT_PATH}/dtb/${BOARD_TYPE}/Image.lzma
+
+mkdir -p ${ROOT_PATH}/output/${BOARD_TYPE}
+mkimage -f ${PROJECT_PATH}/dtb/${BOARD_TYPE}/multi.its -r ${ROOT_PATH}/output/${BOARD_TYPE}/boot.sd
+
+rm -rf ${PROJECT_PATH}/dtb/${BOARD_TYPE}/Image.lzma
diff --git a/bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/bl2.bin b/bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/bl2.bin
old mode 100755
new mode 100644
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/bl2.bin
rename to bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/bl2.bin
diff --git a/bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/bl31.bin b/bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/bl31.bin
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/bl31.bin
rename to bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/bl31.bin
diff --git a/bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/blmacros.env b/bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/blmacros.env
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/blmacros.env
rename to bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/blmacros.env
diff --git a/bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/chip_conf.bin b/bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/chip_conf.bin
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/chip_conf.bin
rename to bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/chip_conf.bin
diff --git a/bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/ddr_param.bin b/bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/ddr_param.bin
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/ddr_param.bin
rename to bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/ddr_param.bin
diff --git a/bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/empty.bin b/bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/empty.bin
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/empty.bin
rename to bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/empty.bin
diff --git a/bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/fip.bin b/bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/fip.bin
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/fip.bin
rename to bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/fip.bin
diff --git a/bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/fiptool.py b/bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/fiptool.py
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/fiptool.py
rename to bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/fiptool.py
diff --git a/bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/u-boot-raw.bin b/bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/u-boot-raw.bin
similarity index 100%
rename from bsp/cvitek/cv18xx_aarch64/prebuild/milkv-duo256m/u-boot-raw.bin
rename to bsp/cvitek/cv18xx_aarch64/prebuild/duo256m/u-boot-raw.bin
diff --git a/bsp/cvitek/cv18xx_aarch64/rtconfig.py b/bsp/cvitek/cv18xx_aarch64/rtconfig.py
index 9ebc3491fa..16f5706bb7 100644
--- a/bsp/cvitek/cv18xx_aarch64/rtconfig.py
+++ b/bsp/cvitek/cv18xx_aarch64/rtconfig.py
@@ -46,4 +46,4 @@ if PLATFORM == 'gcc':
 DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
 POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
 POST_ACTION += OBJCPY + ' -O binary $TARGET Image \n' + SIZE + ' $TARGET \n'
-POST_ACTION += './combine.sh && cd .. && bash mksdimg.sh ' + os.getcwd() + ' Image \n'
+POST_ACTION += './combine.sh && ./mksdimg.sh ' + os.getcwd() + ' Image \n'