diff --git a/arch/powerpc/cpu/ppc4xx/miiphy.c b/arch/powerpc/cpu/ppc4xx/miiphy.c
index 297155f..e4a9db6 100644
--- a/arch/powerpc/cpu/ppc4xx/miiphy.c
+++ b/arch/powerpc/cpu/ppc4xx/miiphy.c
@@ -1,25 +1,6 @@
-/*-----------------------------------------------------------------------------+
-  |   This source code is dual-licensed.  You may use it under the terms of the
-  |   GNU General Public License version 2, or under the license below.
-  |
-  |	  This source code has been made available to you by IBM on an AS-IS
-  |	  basis.  Anyone receiving this source is licensed under IBM
-  |	  copyrights to use it in any way he or she deems fit, including
-  |	  copying it, modifying it, compiling it, and redistributing it either
-  |	  with or without modifications.  No license under IBM patents or
-  |	  patent applications is to be implied by the copyright license.
-  |
-  |	  Any user of this software should understand that IBM cannot provide
-  |	  technical support for this software and will not be responsible for
-  |	  any consequences resulting from the use of this software.
-  |
-  |	  Any person who transfers this source code or any derivative work
-  |	  must include the IBM copyright notice, this paragraph, and the
-  |	  preceding two paragraphs in the transferred software.
-  |
-  |	  COPYRIGHT   I B M   CORPORATION 1995
-  |	  LICENSED MATERIAL  -	PROGRAM PROPERTY OF I B M
-  +-----------------------------------------------------------------------------*/
+/*
+ * SPDX-License-Identifier:	GPL-2.0	ibm-pibs
+ */
 /*-----------------------------------------------------------------------------+
   |
   |  File Name:	 miiphy.c