diff --git a/board/ifm/ac14xx/Makefile b/board/ifm/ac14xx/Makefile
index 9a76f32..f78fe13 100644
--- a/board/ifm/ac14xx/Makefile
+++ b/board/ifm/ac14xx/Makefile
@@ -1,13 +1,7 @@
 #
 # (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
 #
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
+# SPDX-License-Identifier:	GPL-2.0+
 #
 
 include $(TOPDIR)/config.mk
diff --git a/board/ifm/ac14xx/ac14xx.c b/board/ifm/ac14xx/ac14xx.c
index dc2aff0..0fbdfdb 100644
--- a/board/ifm/ac14xx/ac14xx.c
+++ b/board/ifm/ac14xx/ac14xx.c
@@ -3,13 +3,7 @@
  * (C) Copyright 2009 Dave Srl www.dave.eu
  * (C) Copyright 2010 ifm ecomatic GmbH
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/board/ifm/o2dnt2/Makefile b/board/ifm/o2dnt2/Makefile
index e05b9c1..1dd3fe9 100644
--- a/board/ifm/o2dnt2/Makefile
+++ b/board/ifm/o2dnt2/Makefile
@@ -2,13 +2,7 @@
 # (C) Copyright 2005-2006
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
+# SPDX-License-Identifier:	GPL-2.0+
 #
 
 include $(TOPDIR)/config.mk
diff --git a/board/ifm/o2dnt2/o2dnt2.c b/board/ifm/o2dnt2/o2dnt2.c
index 40a5305..6716ffc 100644
--- a/board/ifm/o2dnt2/o2dnt2.c
+++ b/board/ifm/o2dnt2/o2dnt2.c
@@ -6,23 +6,7 @@
  * (C) Copyright 2012
  * DENX Software Engineering, Anatolij Gustschin <agust@denx.de>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>