kbuild: FIT: Add basic overlay support

Include DT overlays specified by the platform in the FIT image. Overlay
compilation should ideally be handled by kbuild, but as a first step,
the overlay files have to be manually copied to the output directory.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/images/FIT.sh b/images/FIT.sh
index 2205b44..4655a65 100644
--- a/images/FIT.sh
+++ b/images/FIT.sh
@@ -47,7 +47,7 @@ EOF
 
 	local dtb
 
-	for dtb in ${dtbs[@]} ; do
+	for dtb in ${dtbs[@]} ${dt_overlays[@]} ; do
 		local src=${dtb/:*/}
 		local dst=${dtb/*:/}
 		dst=${dst/*\//}
@@ -89,6 +89,18 @@ EOF
 EOF
 	done
 
+	for dtbo in ${dt_overlays[@]} ; do
+		local dst=${dtbo/*:/}
+		dst=${dst/*\//}
+
+		cat <<EOF >> $kernel_its
+		${fit_conf_prefix}${dst} {
+			description = "DT overlay $dst";
+			fdt = "fdt-$dst";
+		};
+EOF
+	done
+
 	cat <<EOF >> $kernel_its
 	};
 };