diff --git a/src/mainboard/asus/a8n_e/acpi_tables.c b/src/mainboard/asus/a8n_e/acpi_tables.c
index 06147ddf5b..da90fd3ddf 100644
--- a/src/mainboard/asus/a8n_e/acpi_tables.c
+++ b/src/mainboard/asus/a8n_e/acpi_tables.c
@@ -1,9 +1,19 @@
 /*
+ * This file is part of the coreboot 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; version 2 of the License.
+ *
+ * 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.
+ *
  * ACPI support
  * written by Stefan Reinauer <stepan@openbios.org>
  *  (C) 2005 Stefan Reinauer
  *
- *
  *  Copyright 2005 AMD
  *  2005.9 yhlu modify that to more dynamic for AMD Opteron Based MB
  */
diff --git a/src/mainboard/asus/f2a85-m/acpi/AmdImc.asl b/src/mainboard/asus/f2a85-m/acpi/AmdImc.asl
index f55a12ad18..5e6c02beb4 100644
--- a/src/mainboard/asus/f2a85-m/acpi/AmdImc.asl
+++ b/src/mainboard/asus/f2a85-m/acpi/AmdImc.asl
@@ -1,3 +1,16 @@
+/*
+ * This file is part of the coreboot 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; version 2 of the License.
+ *
+ * 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.
+ */
+
 //BTDC Due to IMC Fan, ACPI control codes
 OperationRegion(IMIO, SystemIO, 0x3E, 0x02)
 Field(IMIO , ByteAcc, NoLock, Preserve) {
diff --git a/src/mainboard/asus/kfsn4-dre/acpi_tables.c b/src/mainboard/asus/kfsn4-dre/acpi_tables.c
index c6e1b479c7..6c4a02ae6a 100644
--- a/src/mainboard/asus/kfsn4-dre/acpi_tables.c
+++ b/src/mainboard/asus/kfsn4-dre/acpi_tables.c
@@ -1,4 +1,15 @@
 /*
+ * This file is part of the coreboot 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; version 2 of the License.
+ *
+ * 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.
+ *
  * ACPI support
  * written by Stefan Reinauer <stepan@openbios.org>
  *  (C) 2005 Stefan Reinauer
diff --git a/src/mainboard/asus/kfsn4-dre_k8/acpi_tables.c b/src/mainboard/asus/kfsn4-dre_k8/acpi_tables.c
index 8c706b5349..6061f89819 100644
--- a/src/mainboard/asus/kfsn4-dre_k8/acpi_tables.c
+++ b/src/mainboard/asus/kfsn4-dre_k8/acpi_tables.c
@@ -1,4 +1,15 @@
 /*
+ * This file is part of the coreboot 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; version 2 of the License.
+ *
+ * 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.
+ *
  * ACPI support
  * written by Stefan Reinauer <stepan@openbios.org>
  *  (C) 2005 Stefan Reinauer