diff --git a/tests/drivers/flash/common/boards/ek_ra4l1.conf b/tests/drivers/flash/common/boards/ek_ra4l1.conf
new file mode 100644
index 00000000000..52f49a5444a
--- /dev/null
+++ b/tests/drivers/flash/common/boards/ek_ra4l1.conf
@@ -0,0 +1,4 @@
+# Copyright (c) 2025 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_TEST_DRIVER_FLASH_SIZE=8192