binman: allow user-defined filenames for mkimage entry

mkimage entry currently creates a file whose name is derived from the
section name containing said entry.

Let's allow the user to define a filename for the mkimage-generated
binary by using the 'filename' DT property.

Cc: Quentin Schulz <[email protected]>
Signed-off-by: Quentin Schulz <[email protected]>
Reviewed-by: Simon Glass <[email protected]>

1 files changed, 18 insertions, 0 deletions

diff --git a/tools/binman/test/254_mkimage_filename.dts b/tools/binman/test/254_mkimage_filename.dts
new file mode 100644
index 00000000000..4483790ae86
--- /dev/null
+++ b/tools/binman/test/254_mkimage_filename.dts
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	binman {
+		mkimage {
+			filename = "mkimage-test.bin";
+			args = "-T script";
+
+			u-boot-spl {
+			};
+		};
+	};
+};