diff --git a/build_kernel.sh b/build_kernel.sh
index e622fbb594070d63ded2eb50c0ef5a5842941f94..8569929b24fa1db5d11e2fab4943b57ee1d7085a 100755
--- a/build_kernel.sh
+++ b/build_kernel.sh
@@ -21,7 +21,25 @@ set -e
 
 
 pushd ${1}
+
+VIM3L_2NDBOOT_PATH=$(pwd)/../../../kernel/linux/patches/linux-4.19/vim3l_patch/2ndbootloader
+VIM3L_MKBOOTIMG=$(pwd)/../../../prebuilts/host/linux-x86/bin/mkbootimg
+
 ./kernel_module_build.sh ${2} ${4} ${5} ${6} ${7} ${8}
 mkdir -p ${3}
-cp ${2}/kernel/src_tmp/${8}/arch/arm/boot/uImage ${3}/uImage
+
+if [ $7 == "vim3l" ];then
+    cp ${2}/kernel/src_tmp/${8}/arch/arm/boot/uImage ${3}/uImage
+    cp ${3}/uImage ${3}/kernel
+    cp ${VIM3L_2NDBOOT_PATH} ${3}/2ndbootloader
+    ${VIM3L_MKBOOTIMG} --second ${3}/2ndbootloader --kernel ${3}/kernel --base 0x0 --cmdline androidboot.dtbo_idx=0 --cmdline root=/dev/mmcblk1p1 \
+     --os_version 9 --os_patch_level 2018-08-05 --kernel_offset 0x1080000 --header_version 1 --output ${3}/boot.img
+    if [ -f ${3}/boot.img ];then
+        echo "create boot.img OK!"
+    else
+        echo "create boot.img failed!"
+    fi
+else
+    cp ${2}/kernel/src_tmp/${8}/arch/arm/boot/uImage ${3}/uImage
+fi
 popd
diff --git a/kernel.mk b/kernel.mk
index 56fcde79ef552cf7816d12b48202bbe0a1564870..a3393f8af4838a7aa9fe1127006a166aea71ffed 100644
--- a/kernel.mk
+++ b/kernel.mk
@@ -32,10 +32,18 @@ KERNEL_HOSTCC := $(CLANG_HOST_TOOLCHAIN)/clang
 KERNEL_PREBUILT_MAKE := make
 
 ifeq ($(BUILD_TYPE), standard)
-    KERNEL_ARCH := arm
-    KERNEL_TARGET_TOOLCHAIN := $(PREBUILTS_GCC_DIR)/linux-x86/arm/gcc-linaro-7.5.0-arm-linux-gnueabi/bin
-    KERNEL_TARGET_TOOLCHAIN_PREFIX := $(KERNEL_TARGET_TOOLCHAIN)/arm-linux-gnueabi-
-    CLANG_CC := $(CLANG_HOST_TOOLCHAIN)/clang
+    ifeq ($(DEVICE_NAME), vim3l)
+        KERNEL_ARCH := arm
+        KERNEL_TARGET_TOOLCHAIN := $(PREBUILTS_GCC_DIR)/linux-x86/arm/gcc-linaro-6.3.1-arm-linux-gnueabihf/bin
+        KERNEL_TARGET_TOOLCHAIN_PREFIX := $(KERNEL_TARGET_TOOLCHAIN)/arm-linux-gnueabihf-
+        CLANG_CC := 
+        KERNEL_HOSTCC :=
+    else
+        KERNEL_ARCH := arm
+        KERNEL_TARGET_TOOLCHAIN := $(PREBUILTS_GCC_DIR)/linux-x86/arm/gcc-linaro-7.5.0-arm-linux-gnueabi/bin
+        KERNEL_TARGET_TOOLCHAIN_PREFIX := $(KERNEL_TARGET_TOOLCHAIN)/arm-linux-gnueabi-
+        CLANG_CC := $(CLANG_HOST_TOOLCHAIN)/clang
+    endif
 else ifeq ($(BUILD_TYPE), small)
     KERNEL_ARCH := arm
     ifeq ($(CLANG_CC), "")
@@ -47,7 +55,11 @@ KERNEL_PERL := /usr/bin/perl
 
 KERNEL_CROSS_COMPILE :=
 KERNEL_CROSS_COMPILE += CC="$(CLANG_CC)"
-ifeq ($(BUILD_TYPE), standard)
+ifeq ($(DEVICE_NAME), vim3l)
+    KERNEL_CROSS_COMPILE :=
+    KERNEL_CROSS_COMPILE += PERL=$(KERNEL_PERL)
+    KERNEL_CROSS_COMPILE += CROSS_COMPILE="$(KERNEL_TARGET_TOOLCHAIN_PREFIX)"
+else ifeq ($(BUILD_TYPE), standard)
     KERNEL_CROSS_COMPILE += HOSTCC="$(KERNEL_HOSTCC)"
     KERNEL_CROSS_COMPILE += PERL=$(KERNEL_PERL)
     KERNEL_CROSS_COMPILE += CROSS_COMPILE="$(KERNEL_TARGET_TOOLCHAIN_PREFIX)"
@@ -65,11 +77,26 @@ DEVICE_PATCH_DIR := $(OHOS_BUILD_HOME)/kernel/linux/patches/${KERNEL_VERSION}/$(
 DEVICE_PATCH_FILE := $(DEVICE_PATCH_DIR)/$(DEVICE_NAME).patch
 HDF_PATCH_FILE := $(DEVICE_PATCH_DIR)/hdf.patch
 SMALL_PATCH_FILE := $(DEVICE_PATCH_DIR)/$(DEVICE_NAME)_$(BUILD_TYPE).patch
-KERNEL_IMAGE_FILE := $(KERNEL_SRC_TMP_PATH)/arch/arm/boot/uImage
-DEFCONFIG_FILE := $(DEVICE_NAME)_$(BUILD_TYPE)_defconfig
+ifeq ($(DEVICE_NAME), vim3l)
+    KERNEL_IMAGE_FILE := $(KERNEL_SRC_TMP_PATH)/arch/arm/boot/uImage
+    DEFCONFIG_FILE := kvim_a32_defconfig
+else
+    KERNEL_IMAGE_FILE := $(KERNEL_SRC_TMP_PATH)/arch/arm/boot/uImage
+    DEFCONFIG_FILE := $(DEVICE_NAME)_$(BUILD_TYPE)_defconfig
+endif
 export HDF_PROJECT_ROOT=$(OHOS_BUILD_HOME)/
 
 $(KERNEL_IMAGE_FILE):
+ifeq ($(DEVICE_NAME), vim3l)
+	$(hide) echo "build kernel..."
+	$(hide) rm -rf $(KERNEL_SRC_TMP_PATH);mkdir -p $(KERNEL_SRC_TMP_PATH);cp -arf $(KERNEL_SRC_PATH)/* $(KERNEL_SRC_TMP_PATH)/
+	$(hide) cd $(KERNEL_SRC_TMP_PATH) && patch -p1 < $(DEVICE_PATCH_FILE) && patch -p1 < $(HDF_PATCH_FILE)
+	$(hide) cp -rf $(KERNEL_CONFIG_PATH)/. $(KERNEL_SRC_TMP_PATH)/
+	$(hide) rm -rf $(KERNEL_SRC_TMP_PATH)/.git/hooks
+	$(hide) $(KERNEL_MAKE) -C $(KERNEL_SRC_TMP_PATH) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) distclean
+	$(hide) $(KERNEL_MAKE) -C $(KERNEL_SRC_TMP_PATH) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) $(DEFCONFIG_FILE)
+	$(hide) $(KERNEL_MAKE) -C $(KERNEL_SRC_TMP_PATH) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) dtbs uImage modules -j24
+else
 	$(hide) echo "build kernel..."
 	$(hide) rm -rf $(KERNEL_SRC_TMP_PATH);mkdir -p $(KERNEL_SRC_TMP_PATH);cp -arfL $(KERNEL_SRC_PATH)/* $(KERNEL_SRC_TMP_PATH)/
 	$(hide) cd $(KERNEL_SRC_TMP_PATH) && patch -p1 < $(HDF_PATCH_FILE) && patch -p1 < $(DEVICE_PATCH_FILE)
@@ -84,5 +111,6 @@ ifeq ($(KERNEL_VERSION), linux-5.10)
 endif
 	$(hide) $(KERNEL_MAKE) -C $(KERNEL_SRC_TMP_PATH) ARCH=$(KERNEL_ARCH) $(KERNEL_CROSS_COMPILE) -j64 uImage
 endif
+endif
 .PHONY: build-kernel
 build-kernel: $(KERNEL_IMAGE_FILE)
diff --git a/kernel_module_build.sh b/kernel_module_build.sh
index 826bd6c3e6bd74ee18376fd4dcd6e22c45d0c72a..28aa14ac12901fa085d0aadb87b0797634b767e4 100755
--- a/kernel_module_build.sh
+++ b/kernel_module_build.sh
@@ -41,7 +41,11 @@ fi
 export OHOS_ROOT_PATH=$(pwd)/../../..
 export PRODUCT_PATH=$4
 
-LINUX_KERNEL_UIMAGE_FILE=${LINUX_KERNEL_OUT}/arch/arm/boot/uImage
+if [ "$5" == "vim3l" ];then
+    LINUX_KERNEL_UIMAGE_FILE=${LINUX_KERNEL_OUT}/arch/arm/boot/uImage
+else
+    LINUX_KERNEL_UIMAGE_FILE=${LINUX_KERNEL_OUT}/arch/arm/boot/uImage
+fi
 
 make -f kernel.mk