diff --git a/boards/renesas/rx65n/rx65n-grrose/include/board.h b/boards/renesas/rx65n/rx65n-grrose/include/board.h
index 8b1aad632f7..0b0c4cef8a6 100644
--- a/boards/renesas/rx65n/rx65n-grrose/include/board.h
+++ b/boards/renesas/rx65n/rx65n-grrose/include/board.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-grrose/include/board.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-grrose/include/rx65n_gpio.h b/boards/renesas/rx65n/rx65n-grrose/include/rx65n_gpio.h
index e369fbb497e..7992d532d1b 100644
--- a/boards/renesas/rx65n/rx65n-grrose/include/rx65n_gpio.h
+++ b/boards/renesas/rx65n/rx65n-grrose/include/rx65n_gpio.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-grrose/include/rx65n_gpio.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-grrose/scripts/Make.defs b/boards/renesas/rx65n/rx65n-grrose/scripts/Make.defs
index ee1de7af731..2e8c8294106 100644
--- a/boards/renesas/rx65n/rx65n-grrose/scripts/Make.defs
+++ b/boards/renesas/rx65n/rx65n-grrose/scripts/Make.defs
@@ -1,6 +1,8 @@
 ##############################################################################
 # boards/renesas/rx65n/rx65n-grrose/scripts/Make.defs
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-grrose/scripts/linker_script.ld b/boards/renesas/rx65n/rx65n-grrose/scripts/linker_script.ld
index abacece525d..fcb83519378 100644
--- a/boards/renesas/rx65n/rx65n-grrose/scripts/linker_script.ld
+++ b/boards/renesas/rx65n/rx65n-grrose/scripts/linker_script.ld
@@ -1,3 +1,25 @@
+/****************************************************************************
+ * boards/renesas/rx65n/rx65n-grrose/scripts/linker_script.ld
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
 MEMORY
 {
 /*	RSK-RX65N-1MB */
diff --git a/boards/renesas/rx65n/rx65n-grrose/src/Makefile b/boards/renesas/rx65n/rx65n-grrose/src/Makefile
index d0806ddaec4..a20bfbd386b 100644
--- a/boards/renesas/rx65n/rx65n-grrose/src/Makefile
+++ b/boards/renesas/rx65n/rx65n-grrose/src/Makefile
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/renesas/rx65n/rx65n-grrose/src/Makefile
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_appinit.c b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_appinit.c
index a26b2abf848..5fb04586b10 100644
--- a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_appinit.c
+++ b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_appinit.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-grrose/src/rx65n_appinit.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_bringup.c b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_bringup.c
index ec65f351ba7..23c490a4b9c 100644
--- a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_bringup.c
+++ b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_bringup.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-grrose/src/rx65n_bringup.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_gpio.c b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_gpio.c
index 60a373075fe..ad3563ce80d 100644
--- a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_gpio.c
+++ b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_gpio.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-grrose/src/rx65n_gpio.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_grrose.h b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_grrose.h
index 7391c58e7a0..55391ef6d25 100644
--- a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_grrose.h
+++ b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_grrose.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-grrose/src/rx65n_grrose.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_sbram.c b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_sbram.c
index 601e2285676..5b780012f2f 100644
--- a/boards/renesas/rx65n/rx65n-grrose/src/rx65n_sbram.c
+++ b/boards/renesas/rx65n/rx65n-grrose/src/rx65n_sbram.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-grrose/src/rx65n_sbram.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk1mb/include/board.h b/boards/renesas/rx65n/rx65n-rsk1mb/include/board.h
index 8c1d0859032..83ae90fe4bf 100644
--- a/boards/renesas/rx65n/rx65n-rsk1mb/include/board.h
+++ b/boards/renesas/rx65n/rx65n-rsk1mb/include/board.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk1mb/include/board.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk1mb/include/rx65n_gpio.h b/boards/renesas/rx65n/rx65n-rsk1mb/include/rx65n_gpio.h
index c45fd804396..f53aeec7de7 100644
--- a/boards/renesas/rx65n/rx65n-rsk1mb/include/rx65n_gpio.h
+++ b/boards/renesas/rx65n/rx65n-rsk1mb/include/rx65n_gpio.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk1mb/include/rx65n_gpio.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk1mb/scripts/Make.defs b/boards/renesas/rx65n/rx65n-rsk1mb/scripts/Make.defs
index bd34503a35a..2fa4ec830b9 100644
--- a/boards/renesas/rx65n/rx65n-rsk1mb/scripts/Make.defs
+++ b/boards/renesas/rx65n/rx65n-rsk1mb/scripts/Make.defs
@@ -1,6 +1,8 @@
 ##############################################################################
 # boards/renesas/rx65n/rx65n-rsk1mb/scripts/Make.defs
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk1mb/scripts/linker_script.ld b/boards/renesas/rx65n/rx65n-rsk1mb/scripts/linker_script.ld
index cd125920d32..571b8d0b60f 100644
--- a/boards/renesas/rx65n/rx65n-rsk1mb/scripts/linker_script.ld
+++ b/boards/renesas/rx65n/rx65n-rsk1mb/scripts/linker_script.ld
@@ -1,3 +1,25 @@
+/****************************************************************************
+ * boards/renesas/rx65n/rx65n-rsk1mb/scripts/linker_script.ld
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
 MEMORY
 {
 /*	RSK-RX65N-1MB */
diff --git a/boards/renesas/rx65n/rx65n-rsk1mb/src/Makefile b/boards/renesas/rx65n/rx65n-rsk1mb/src/Makefile
index dedf0a6d745..e065ba36c59 100644
--- a/boards/renesas/rx65n/rx65n-rsk1mb/src/Makefile
+++ b/boards/renesas/rx65n/rx65n-rsk1mb/src/Makefile
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/renesas/rx65n/rx65n-rsk1mb/src/Makefile
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_gpio.c b/boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_gpio.c
index 60c33307cb9..f15eb0ccb0f 100644
--- a/boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_gpio.c
+++ b/boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_gpio.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_gpio.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_main.c b/boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_main.c
index f030932ef65..b48b917d4d2 100644
--- a/boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_main.c
+++ b/boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_main.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk1mb/src/rx65n_main.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/include/board.h b/boards/renesas/rx65n/rx65n-rsk2mb/include/board.h
index 6d2237b1034..2dbc8cfcae6 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/include/board.h
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/include/board.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk2mb/include/board.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/include/rx65n_gpio.h b/boards/renesas/rx65n/rx65n-rsk2mb/include/rx65n_gpio.h
index f7b0b9374f4..15763490ecb 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/include/rx65n_gpio.h
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/include/rx65n_gpio.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk2mb/include/rx65n_gpio.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/scripts/Make.defs b/boards/renesas/rx65n/rx65n-rsk2mb/scripts/Make.defs
index bfce3dac3fa..1e332e6f330 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/scripts/Make.defs
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/scripts/Make.defs
@@ -1,6 +1,8 @@
 ##############################################################################
 # boards/renesas/rx65n/rx65n-rsk2mb/scripts/Make.defs
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/scripts/linker_script.ld b/boards/renesas/rx65n/rx65n-rsk2mb/scripts/linker_script.ld
index 6db40f54af1..ff94a9239af 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/scripts/linker_script.ld
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/scripts/linker_script.ld
@@ -1,3 +1,25 @@
+/****************************************************************************
+ * boards/renesas/rx65n/rx65n-rsk2mb/scripts/linker_script.ld
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
 MEMORY
 {
 /*	RSK-RX65N-1MB */
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/src/Makefile b/boards/renesas/rx65n/rx65n-rsk2mb/src/Makefile
index e899fcc9d2d..11ab5c55170 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/src/Makefile
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/src/Makefile
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/renesas/rx65n/rx65n-rsk2mb/src/Makefile
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_appinit.c b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_appinit.c
index 212e827a9e3..9f68f6e1746 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_appinit.c
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_appinit.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_appinit.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_bringup.c b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_bringup.c
index 4c251aa97ae..bead9393d7c 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_bringup.c
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_bringup.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_bringup.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_gpio.c b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_gpio.c
index bd374102e51..57fc10389b9 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_gpio.c
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_gpio.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_gpio.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_rsk2mb.h b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_rsk2mb.h
index 14aa391f76c..c3e69b36ac8 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_rsk2mb.h
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_rsk2mb.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_rsk2mb.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_sbram.c b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_sbram.c
index 1925632a4b2..6d8ca733d56 100644
--- a/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_sbram.c
+++ b/boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_sbram.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n-rsk2mb/src/rx65n_sbram.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n/include/board.h b/boards/renesas/rx65n/rx65n/include/board.h
index b07dbbfaa59..8b7bb0e36f1 100644
--- a/boards/renesas/rx65n/rx65n/include/board.h
+++ b/boards/renesas/rx65n/rx65n/include/board.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n/include/board.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n/scripts/Make.defs b/boards/renesas/rx65n/rx65n/scripts/Make.defs
index acc92fd4a25..2bc971e7ccc 100644
--- a/boards/renesas/rx65n/rx65n/scripts/Make.defs
+++ b/boards/renesas/rx65n/rx65n/scripts/Make.defs
@@ -1,6 +1,8 @@
 ##############################################################################
 # boards/renesas/rx65n/rx65n/scripts/Make.defs
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n/scripts/linker_script.ld b/boards/renesas/rx65n/rx65n/scripts/linker_script.ld
index ba69dbc221b..19dac533d4d 100644
--- a/boards/renesas/rx65n/rx65n/scripts/linker_script.ld
+++ b/boards/renesas/rx65n/rx65n/scripts/linker_script.ld
@@ -1,3 +1,25 @@
+/****************************************************************************
+ * boards/renesas/rx65n/rx65n/scripts/linker_script.ld
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
 MEMORY
 {
 /*	RSK-RX65N-1MB */
diff --git a/boards/renesas/rx65n/rx65n/src/Makefile b/boards/renesas/rx65n/rx65n/src/Makefile
index 11d71b02cc1..0cdd1f61bf5 100644
--- a/boards/renesas/rx65n/rx65n/src/Makefile
+++ b/boards/renesas/rx65n/rx65n/src/Makefile
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/renesas/rx65n/rx65n/src/Makefile
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The
diff --git a/boards/renesas/rx65n/rx65n/src/rx65n_main.c b/boards/renesas/rx65n/rx65n/src/rx65n_main.c
index 699a8a00c4e..18eac9d4c82 100644
--- a/boards/renesas/rx65n/rx65n/src/rx65n_main.c
+++ b/boards/renesas/rx65n/rx65n/src/rx65n_main.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/renesas/rx65n/rx65n/src/rx65n_main.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The