kernel-fitimage: Make DTB key insertion optional

If UBOOT_DTB_BINARY is empty, then don't try inserting the U-Boot
signing keys into the DTB. In this configuration the keys are expected
to be already present in U-Boot's DTB.

(From OE-Core rev: a0d74767f7bd18c853df6b0be162363076d8f965)

Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/classes/kernel-fitimage.bbclass b/meta/classes/kernel-fitimage.bbclass
index f84be44bb9..db79e96137 100644
--- a/meta/classes/kernel-fitimage.bbclass
+++ b/meta/classes/kernel-fitimage.bbclass
@@ -459,7 +459,7 @@ fitimage_assemble() {
                 uboot-mkimage \
                         ${@'-D "${UBOOT_MKIMAGE_DTCOPTS}"' if len('${UBOOT_MKIMAGE_DTCOPTS}') else ''} \
                         -F -k "${UBOOT_SIGN_KEYDIR}" \
-                        -K "${DEPLOY_DIR_IMAGE}/${UBOOT_DTB_BINARY}" \
+                        ${@'-K "${DEPLOY_DIR_IMAGE}/${UBOOT_DTB_BINARY}"' if len('${UBOOT_DTB_BINARY}') else ''} \
                         -r arch/${ARCH}/boot/${2}
         fi
 }