diff --git a/poky/meta/classes/kernel-fitimage.bbclass b/poky/meta/classes/kernel-fitimage.bbclass
index 4c4fd99..2517d75 100644
--- a/poky/meta/classes/kernel-fitimage.bbclass
+++ b/poky/meta/classes/kernel-fitimage.bbclass
@@ -4,7 +4,7 @@
     kerneltypes = d.getVar('KERNEL_IMAGETYPES') or ""
     if 'fitImage' in kerneltypes.split():
         depends = d.getVar("DEPENDS")
-        depends = "%s u-boot-mkimage-native dtc-native" % depends
+        depends = "%s u-boot-tools-native dtc-native" % depends
         d.setVar("DEPENDS", depends)
 
         uarch = d.getVar("UBOOT_ARCH")
@@ -19,9 +19,9 @@
         else:
             replacementtype = "zImage"
 
-	# Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal
-	# to kernel.bbclass . We have to override it, since we pack zImage
-	# (at least for now) into the fitImage .
+        # Override KERNEL_IMAGETYPE_FOR_MAKE variable, which is internal
+        # to kernel.bbclass . We have to override it, since we pack zImage
+        # (at least for now) into the fitImage .
         typeformake = d.getVar("KERNEL_IMAGETYPE_FOR_MAKE") or ""
         if 'fitImage' in typeformake.split():
             d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', typeformake.replace('fitImage', replacementtype))
@@ -30,12 +30,19 @@
         if image:
             d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' ${INITRAMFS_IMAGE}:do_image_complete')
 
+        #check if there are any dtb providers
+        providerdtb = d.getVar("PREFERRED_PROVIDER_virtual/dtb")
+        if providerdtb:
+            d.appendVarFlag('do_assemble_fitimage', 'depends', ' virtual/dtb:do_populate_sysroot')
+            d.appendVarFlag('do_assemble_fitimage_initramfs', 'depends', ' virtual/dtb:do_populate_sysroot')
+            d.setVar('EXTERNAL_KERNEL_DEVICETREE', "${RECIPE_SYSROOT}/boot/devicetree")
+
         # Verified boot will sign the fitImage and append the public key to
         # U-Boot dtb. We ensure the U-Boot dtb is deployed before assembling
         # the fitImage:
         if d.getVar('UBOOT_SIGN_ENABLE') == "1":
             uboot_pn = d.getVar('PREFERRED_PROVIDER_u-boot') or 'u-boot'
-            d.appendVarFlag('do_assemble_fitimage', 'depends', ' %s:do_deploy' % uboot_pn)
+            d.appendVarFlag('do_assemble_fitimage', 'depends', ' %s:do_populate_sysroot' % uboot_pn)
 }
 
 # Options for the device tree compiler passed to mkimage '-D' feature:
@@ -373,7 +380,8 @@
 	#
 	# Step 2: Prepare a DTB image section
 	#
-	if [ -n "${KERNEL_DEVICETREE}" ]; then
+
+	if [ -z "${EXTERNAL_KERNEL_DEVICETREE}" ] && [ -n "${KERNEL_DEVICETREE}" ]; then
 		dtbcount=1
 		for DTB in ${KERNEL_DEVICETREE}; do
 			if echo ${DTB} | grep -q '/dts/'; then
@@ -391,6 +399,16 @@
 		done
 	fi
 
+	if [ -n "${EXTERNAL_KERNEL_DEVICETREE}" ]; then
+		dtbcount=1
+		for DTBFILE in ${EXTERNAL_KERNEL_DEVICETREE}/*.dtb; do
+			DTB=`basename ${DTBFILE}`
+			DTB=$(echo "${DTB}" | tr '/' '_')
+			DTBS="${DTBS} ${DTB}"
+			fitimage_emit_section_dtb ${1} ${DTB} ${DTBFILE}
+		done
+	fi
+
 	#
 	# Step 3: Prepare a setup section. (For x86)
 	#
@@ -456,10 +474,17 @@
 	# Step 7: Sign the image and add public key to U-Boot dtb
 	#
 	if [ "x${UBOOT_SIGN_ENABLE}" = "x1" ] ; then
+		add_key_to_u_boot=""
+		if [ -n "${UBOOT_DTB_BINARY}" ]; then
+			# The u-boot.dtb is a symlink to UBOOT_DTB_IMAGE, so we need copy
+			# both of them, and don't dereference the symlink.
+			cp -P ${STAGING_DATADIR}/u-boot*.dtb ${B}
+			add_key_to_u_boot="-K ${B}/${UBOOT_DTB_BINARY}"
+		fi
 		uboot-mkimage \
 			${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \
 			-F -k "${UBOOT_SIGN_KEYDIR}" \
-			${@'-K "${DEPLOY_DIR_IMAGE}/${UBOOT_DTB_BINARY}"' if len('${UBOOT_DTB_BINARY}') else ''} \
+			$add_key_to_u_boot \
 			-r arch/${ARCH}/boot/${2}
 	fi
 }
@@ -481,7 +506,7 @@
 	fi
 }
 
-addtask assemble_fitimage_initramfs before do_deploy after do_install
+addtask assemble_fitimage_initramfs before do_deploy after do_bundle_initramfs
 
 
 kernel_do_deploy[vardepsexclude] = "DATETIME"
@@ -505,5 +530,11 @@
 			install -m 0644 ${B}/arch/${ARCH}/boot/fitImage-${INITRAMFS_IMAGE} ${DEPLOYDIR}/fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.bin
 			ln -snf fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_NAME}.bin ${DEPLOYDIR}/fitImage-${INITRAMFS_IMAGE_NAME}-${KERNEL_FIT_LINK_NAME}
 		fi
+		if [ "${UBOOT_SIGN_ENABLE}" = "1" -a -n "${UBOOT_DTB_BINARY}" ] ; then
+			# UBOOT_DTB_IMAGE is a realfile, but we can't use
+			# ${UBOOT_DTB_IMAGE} since it contains ${PV} which is aimed
+			# for u-boot, but we are in kernel env now.
+			install -m 0644 ${B}/u-boot-${MACHINE}*.dtb ${DEPLOYDIR}/
+		fi
 	fi
 }