diff --git a/boards/z80/z8/z8encore000zco/include/board.h b/boards/z80/z8/z8encore000zco/include/board.h
index d1ce273ddff..9fd02bdb68c 100644
--- a/boards/z80/z8/z8encore000zco/include/board.h
+++ b/boards/z80/z8/z8encore000zco/include/board.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/z80/z8/z8encore000zco/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/z80/z8/z8encore000zco/scripts/Make.defs b/boards/z80/z8/z8encore000zco/scripts/Make.defs
index edc60f3309a..2b892058b37 100644
--- a/boards/z80/z8/z8encore000zco/scripts/Make.defs
+++ b/boards/z80/z8/z8encore000zco/scripts/Make.defs
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/z80/z8/z8encore000zco/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/z80/z8/z8encore000zco/src/Makefile b/boards/z80/z8/z8encore000zco/src/Makefile
index a58311cd955..a96e32b1bdc 100644
--- a/boards/z80/z8/z8encore000zco/src/Makefile
+++ b/boards/z80/z8/z8encore000zco/src/Makefile
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/z80/z8/z8encore000zco/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/z80/z8/z8encore000zco/src/z8_boot.c b/boards/z80/z8/z8encore000zco/src/z8_boot.c
index 8d4e969bfac..3297257712f 100644
--- a/boards/z80/z8/z8encore000zco/src/z8_boot.c
+++ b/boards/z80/z8/z8encore000zco/src/z8_boot.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/z80/z8/z8encore000zco/src/z8_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/z80/z8/z8encore000zco/src/z8_leds.c b/boards/z80/z8/z8encore000zco/src/z8_leds.c
index c8e286c274b..ea609bfc328 100644
--- a/boards/z80/z8/z8encore000zco/src/z8_leds.c
+++ b/boards/z80/z8/z8encore000zco/src/z8_leds.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/z80/z8/z8encore000zco/src/z8_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/z80/z8/z8f64200100kit/include/board.h b/boards/z80/z8/z8f64200100kit/include/board.h
index 3689114e230..7011b1c9978 100644
--- a/boards/z80/z8/z8f64200100kit/include/board.h
+++ b/boards/z80/z8/z8f64200100kit/include/board.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/z80/z8/z8f64200100kit/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/z80/z8/z8f64200100kit/scripts/Make.defs b/boards/z80/z8/z8f64200100kit/scripts/Make.defs
index e1183d7ea6d..5bd597f25a0 100644
--- a/boards/z80/z8/z8f64200100kit/scripts/Make.defs
+++ b/boards/z80/z8/z8f64200100kit/scripts/Make.defs
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/z80/z8/z8f64200100kit/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/z80/z8/z8f64200100kit/src/Makefile b/boards/z80/z8/z8f64200100kit/src/Makefile
index e5f25b525aa..fd14b1fee11 100644
--- a/boards/z80/z8/z8f64200100kit/src/Makefile
+++ b/boards/z80/z8/z8f64200100kit/src/Makefile
@@ -1,6 +1,8 @@
 ############################################################################
 # boards/z80/z8/z8f64200100kit/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/z80/z8/z8f64200100kit/src/z8_boot.c b/boards/z80/z8/z8f64200100kit/src/z8_boot.c
index bf0ee9a9cce..ffb53fed70b 100644
--- a/boards/z80/z8/z8f64200100kit/src/z8_boot.c
+++ b/boards/z80/z8/z8f64200100kit/src/z8_boot.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/z80/z8/z8f64200100kit/src/z8_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/z80/z8/z8f64200100kit/src/z8_leds.c b/boards/z80/z8/z8f64200100kit/src/z8_leds.c
index a9739543a07..c82ae70f9a3 100644
--- a/boards/z80/z8/z8f64200100kit/src/z8_leds.c
+++ b/boards/z80/z8/z8f64200100kit/src/z8_leds.c
@@ -1,6 +1,8 @@
 /****************************************************************************
  * boards/z80/z8/z8f64200100kit/src/z8_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