diff --git a/classes/rockchip-update-img.bbclass b/classes/rockchip-update-img.bbclass
index 7a6a910..c8c8a45 100644
--- a/classes/rockchip-update-img.bbclass
+++ b/classes/rockchip-update-img.bbclass
@@ -6,16 +6,59 @@ inherit image_types
 # This image depends on the rootfs ext4 image
 IMAGE_TYPEDEP_rockchip-update-img = "ext4"
 
-DEPENDS = "mkbootimg-native rockchip-bootloader"
+DEPENDS = "mkbootimg-native rockchip-bootloader virtual/kernel"
+
+FIRMWARE_VER  ?= "1.0"
+MANUFACTURER  ?= "NEO-Technologies"
+MACHINE_MODEL ?= "${MACHINE}"
+CMDLINE       ?= "console=ttyFIQ0 root=/dev/block/mtd/by-name/linuxroot rw rootfstype=ext4"
+MTDPARTS      ?= "0x00008000@0x00002000(boot),-@0x0000A000(linuxroot)"
+
+PACKAGE_FILE = "package-file"
+PARAMETER    = "parameter"
+LOADER       = "loader.bin"
+KERNEL_IMG   = "${KERNEL_IMAGETYPE}"
+INITRD_IMG   = "initrd.img"
+BOOT_IMG     = "boot.img"
+RAW_IMG      = "${IMAGE_NAME}.raw.img"
+UPDATE_IMG   = "${IMAGE_NAME}.update.img"
 
 IMAGE_CMD_rockchip-update-img () {
-	# Fetch bootloader
-	# TODO
+    # Change to image directory
+    cd ${DEPLOY_DIR_IMAGE}
 
-	# Fetch parameter
-	# TODO
+    # Create package-file
+    cat > ${PACKAGE_FILE} << EOF
+# NAME		Relative path
+package-file	${PACKAGE_FILE}
+bootloader	${LOADER}
+parameter	${PARAMETER}
+boot		${BOOT_IMG}
+linuxroot	${IMAGE_NAME}.rootfs.ext4
+EOF
 
-	# Build update.img using afptool and img_maker
-	# TODO
-	touch "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.update.img"
+    # Create parameter
+    cat > ${PARAMETER} << EOF
+FIRMWARE_VER:${FIRMWARE_VER}
+MACHINE_MODEL:${MACHINE}
+MACHINE_ID:007
+MANUFACTURER:${MANUFACTURER}
+MAGIC: 0x5041524B
+ATAG: 0x60000800
+MACHINE: 3066
+CHECK_MASK: 0x80
+KERNEL_IMG: 0x60408000
+#RECOVER_KEY: 1,1,0,20,0
+CMDLINE:${CMDLINE} initrd=0x62000000,0x00800000 mtdparts=rk29xxnand:${MTDPARTS}
+EOF
+
+    # Create boot.img
+    mkbootimg --kernel ${KERNEL_IMG} --ramdisk ${INITRD_IMG} -o ${BOOT_IMG}
+
+    # Build update.img using afptool and img_maker
+    afptool -pack . ${RAW_IMG}
+    img_maker -rk31 ${LOADER} 1 0 0 ${RAW_IMG} ${UPDATE_IMG}
+
+    # Clean directory
+    rm ${PACKAGE_FILE} ${PARAMETER} ${BOOT_IMG} ${RAW_IMG}
 }