diff --git a/boards/arm/stm32wl5/nucleo-wl55jc/include/board.h b/boards/arm/stm32wl5/nucleo-wl55jc/include/board.h
index eb6c1dc6b57..5836978867f 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/include/board.h
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/include/board.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/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/stm32wl5/nucleo-wl55jc/scripts/Make.defs b/boards/arm/stm32wl5/nucleo-wl55jc/scripts/Make.defs
index 8dd4448fde8..2d8bdcf6cf0 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/scripts/Make.defs
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/scripts/Make.defs
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/arm/stm32wl5/nucleo-wl55jc/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/stm32wl5/nucleo-wl55jc/scripts/wl55jc.ld b/boards/arm/stm32wl5/nucleo-wl55jc/scripts/wl55jc.ld
index d94756c60a8..74daea4e144 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/scripts/wl55jc.ld
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/scripts/wl55jc.ld
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/scripts/wl55jc.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/stm32wl5/nucleo-wl55jc/src/Makefile b/boards/arm/stm32wl5/nucleo-wl55jc/src/Makefile
index 631e9441cfc..630173bd984 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/Makefile
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/Makefile
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/arm/stm32wl5/nucleo-wl55jc/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/stm32wl5/nucleo-wl55jc/src/nucleo-wl55jc.h b/boards/arm/stm32wl5/nucleo-wl55jc/src/nucleo-wl55jc.h
index c6118cd1cd3..c25831b622e 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/nucleo-wl55jc.h
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/nucleo-wl55jc.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/nucleo-wl55jc.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/stm32wl5/nucleo-wl55jc/src/stm32_appinit.c b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_appinit.c
index 5b7b755fd94..9fe7ad29e6f 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_appinit.c
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_appinit.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_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/stm32wl5/nucleo-wl55jc/src/stm32_boot.c b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_boot.c
index cc5ce21a244..d5cee51b1a5 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_boot.c
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_boot.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_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/stm32wl5/nucleo-wl55jc/src/stm32_buttons.c b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_buttons.c
index 85446ce6098..adf9448398c 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_buttons.c
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_buttons.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_buttons.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/stm32wl5/nucleo-wl55jc/src/stm32_flash.c b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_flash.c
index e1bcbe1b66d..ea9656e6234 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_flash.c
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_flash.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_flash.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/stm32wl5/nucleo-wl55jc/src/stm32_ipcc.c b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_ipcc.c
index 7afe928f1ef..330d31b2571 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_ipcc.c
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_ipcc.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_ipcc.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/stm32wl5/nucleo-wl55jc/src/stm32_leds.c b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_leds.c
index 033e4fa5a7c..a3f578959df 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_leds.c
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_leds.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_leds.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/stm32wl5/nucleo-wl55jc/src/stm32_spi.c b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_spi.c
index cab6b89e030..96dd62e088f 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_spi.c
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_spi.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_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/stm32wl5/nucleo-wl55jc/src/stm32_ssd1680.c b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_ssd1680.c
index 28adb1ac4f4..0d31c519ddc 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_ssd1680.c
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_ssd1680.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/stm32_ssd1680.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/stm32wl5/nucleo-wl55jc/src/stm32wl5_ssd1680.h b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32wl5_ssd1680.h
index 775901a84df..104118bba9e 100644
--- a/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32wl5_ssd1680.h
+++ b/boards/arm/stm32wl5/nucleo-wl55jc/src/stm32wl5_ssd1680.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/stm32wl5/nucleo-wl55jc/src/stm32wl5_ssd1680.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