diff --git a/boards/arm/eoss3/quickfeather/include/board.h b/boards/arm/eoss3/quickfeather/include/board.h
index 5bff748dc5b..425f3ad5233 100644
--- a/boards/arm/eoss3/quickfeather/include/board.h
+++ b/boards/arm/eoss3/quickfeather/include/board.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/eoss3/quickfeather/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/eoss3/quickfeather/scripts/Make.defs b/boards/arm/eoss3/quickfeather/scripts/Make.defs
index 865c8084438..2d9c715588b 100644
--- a/boards/arm/eoss3/quickfeather/scripts/Make.defs
+++ b/boards/arm/eoss3/quickfeather/scripts/Make.defs
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/arm/eoss3/quickfeather/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/eoss3/quickfeather/scripts/ld.script b/boards/arm/eoss3/quickfeather/scripts/ld.script
index 311f27a06a8..312c305d5ca 100644
--- a/boards/arm/eoss3/quickfeather/scripts/ld.script
+++ b/boards/arm/eoss3/quickfeather/scripts/ld.script
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/eoss3/quickfeather/scripts/ld.script
  *
+ * 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/eoss3/quickfeather/src/Makefile b/boards/arm/eoss3/quickfeather/src/Makefile
index 9a82be45790..eaa7341472a 100644
--- a/boards/arm/eoss3/quickfeather/src/Makefile
+++ b/boards/arm/eoss3/quickfeather/src/Makefile
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/arm/eoss3/quickfeather/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/eoss3/quickfeather/src/eoss3_appinit.c b/boards/arm/eoss3/quickfeather/src/eoss3_appinit.c
index 954420d7001..f5562cca630 100644
--- a/boards/arm/eoss3/quickfeather/src/eoss3_appinit.c
+++ b/boards/arm/eoss3/quickfeather/src/eoss3_appinit.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/eoss3/quickfeather/src/eoss3_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/eoss3/quickfeather/src/eoss3_autoleds.c b/boards/arm/eoss3/quickfeather/src/eoss3_autoleds.c
index 55f4fb09a50..2fa799c1890 100644
--- a/boards/arm/eoss3/quickfeather/src/eoss3_autoleds.c
+++ b/boards/arm/eoss3/quickfeather/src/eoss3_autoleds.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/eoss3/quickfeather/src/eoss3_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/eoss3/quickfeather/src/eoss3_boot.c b/boards/arm/eoss3/quickfeather/src/eoss3_boot.c
index 1ebe54a09c2..06de85eb2ee 100644
--- a/boards/arm/eoss3/quickfeather/src/eoss3_boot.c
+++ b/boards/arm/eoss3/quickfeather/src/eoss3_boot.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/eoss3/quickfeather/src/eoss3_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/eoss3/quickfeather/src/eoss3_bringup.c b/boards/arm/eoss3/quickfeather/src/eoss3_bringup.c
index bc6130d5d3a..7d955cbdb37 100644
--- a/boards/arm/eoss3/quickfeather/src/eoss3_bringup.c
+++ b/boards/arm/eoss3/quickfeather/src/eoss3_bringup.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/eoss3/quickfeather/src/eoss3_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/eoss3/quickfeather/src/quickfeather.h b/boards/arm/eoss3/quickfeather/src/quickfeather.h
index b969a8aaf32..5c3f3118a94 100644
--- a/boards/arm/eoss3/quickfeather/src/quickfeather.h
+++ b/boards/arm/eoss3/quickfeather/src/quickfeather.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/arm/eoss3/quickfeather/src/quickfeather.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