diff --git a/boards/arm/max326xx/max32660-evsys/include/board.h b/boards/arm/max326xx/max32660-evsys/include/board.h
index 4f2225dbc0..9fc1835d7c 100644
--- a/boards/arm/max326xx/max32660-evsys/include/board.h
+++ b/boards/arm/max326xx/max32660-evsys/include/board.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/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/arm/max326xx/max32660-evsys/scripts/Make.defs b/boards/arm/max326xx/max32660-evsys/scripts/Make.defs
index 51132e78a0..f60fd50746 100644
--- a/boards/arm/max326xx/max32660-evsys/scripts/Make.defs
+++ b/boards/arm/max326xx/max32660-evsys/scripts/Make.defs
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/arm/max326xx/max32660-evsys/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/arm/max326xx/max32660-evsys/scripts/flash.ld b/boards/arm/max326xx/max32660-evsys/scripts/flash.ld
index 1eff9f1d7f..815d6cd950 100644
--- a/boards/arm/max326xx/max32660-evsys/scripts/flash.ld
+++ b/boards/arm/max326xx/max32660-evsys/scripts/flash.ld
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/scripts/flash.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
diff --git a/boards/arm/max326xx/max32660-evsys/scripts/sram.ld b/boards/arm/max326xx/max32660-evsys/scripts/sram.ld
index dd4b4533bd..7ef514bad9 100644
--- a/boards/arm/max326xx/max32660-evsys/scripts/sram.ld
+++ b/boards/arm/max326xx/max32660-evsys/scripts/sram.ld
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/scripts/sram.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
diff --git a/boards/arm/max326xx/max32660-evsys/src/Makefile b/boards/arm/max326xx/max32660-evsys/src/Makefile
index 4d6c6802cd..92d9b61070 100644
--- a/boards/arm/max326xx/max32660-evsys/src/Makefile
+++ b/boards/arm/max326xx/max32660-evsys/src/Makefile
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/arm/max326xx/max32660-evsys/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/arm/max326xx/max32660-evsys/src/max32660-evsys.h b/boards/arm/max326xx/max32660-evsys/src/max32660-evsys.h
index b6ad5cbc10..6cdca11118 100644
--- a/boards/arm/max326xx/max32660-evsys/src/max32660-evsys.h
+++ b/boards/arm/max326xx/max32660-evsys/src/max32660-evsys.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/src/max32660-evsys.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/arm/max326xx/max32660-evsys/src/max326_appinit.c b/boards/arm/max326xx/max32660-evsys/src/max326_appinit.c
index a6e2c78168..2be1d57aac 100644
--- a/boards/arm/max326xx/max32660-evsys/src/max326_appinit.c
+++ b/boards/arm/max326xx/max32660-evsys/src/max326_appinit.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/src/max326_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/arm/max326xx/max32660-evsys/src/max326_autoleds.c b/boards/arm/max326xx/max32660-evsys/src/max326_autoleds.c
index e929c36766..5322cde004 100644
--- a/boards/arm/max326xx/max32660-evsys/src/max326_autoleds.c
+++ b/boards/arm/max326xx/max32660-evsys/src/max326_autoleds.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/src/max326_autoleds.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/arm/max326xx/max32660-evsys/src/max326_boot.c b/boards/arm/max326xx/max32660-evsys/src/max326_boot.c
index 6775fd8560..264bbd2166 100644
--- a/boards/arm/max326xx/max32660-evsys/src/max326_boot.c
+++ b/boards/arm/max326xx/max32660-evsys/src/max326_boot.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/src/max326_boot.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/arm/max326xx/max32660-evsys/src/max326_bringup.c b/boards/arm/max326xx/max32660-evsys/src/max326_bringup.c
index 9fee06bff5..3207ad0df8 100644
--- a/boards/arm/max326xx/max32660-evsys/src/max326_bringup.c
+++ b/boards/arm/max326xx/max32660-evsys/src/max326_bringup.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/src/max326_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/arm/max326xx/max32660-evsys/src/max326_button.c b/boards/arm/max326xx/max32660-evsys/src/max326_button.c
index 7246b79ca5..7dee8e905f 100644
--- a/boards/arm/max326xx/max32660-evsys/src/max326_button.c
+++ b/boards/arm/max326xx/max32660-evsys/src/max326_button.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/src/max326_button.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/arm/max326xx/max32660-evsys/src/max326_mmcsd.c b/boards/arm/max326xx/max32660-evsys/src/max326_mmcsd.c
index 41a5d8b53e..1815331d8a 100644
--- a/boards/arm/max326xx/max32660-evsys/src/max326_mmcsd.c
+++ b/boards/arm/max326xx/max32660-evsys/src/max326_mmcsd.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/src/max326_mmcsd.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/arm/max326xx/max32660-evsys/src/max326_spi.c b/boards/arm/max326xx/max32660-evsys/src/max326_spi.c
index 1d094da7d5..770933b6b5 100644
--- a/boards/arm/max326xx/max32660-evsys/src/max326_spi.c
+++ b/boards/arm/max326xx/max32660-evsys/src/max326_spi.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/src/max326_spi.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/arm/max326xx/max32660-evsys/src/max326_userleds.c b/boards/arm/max326xx/max32660-evsys/src/max326_userleds.c
index fabe2d1e6f..867fecfcd0 100644
--- a/boards/arm/max326xx/max32660-evsys/src/max326_userleds.c
+++ b/boards/arm/max326xx/max32660-evsys/src/max326_userleds.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/max326xx/max32660-evsys/src/max326_userleds.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