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commit aa422c95ca15cb4a046d52a6811693761f509d03
Author: Alin Jerpelea <[email protected]>
AuthorDate: Mon Dec 16 03:37:46 2024 +0100

    arch/arm/xmc4: migrate to SPDX identifier
    
    Most tools used for compliance and SBOM generation use SPDX identifiers
    This change brings us a step closer to an easy SBOM generation.
    
    Signed-off-by: Alin Jerpelea <[email protected]>
---
 arch/arm/src/xmc4/hardware/xmc4_ccu4.h      | 44 +++++++++--------------
 arch/arm/src/xmc4/hardware/xmc4_eru.h       | 17 +++++----
 arch/arm/src/xmc4/hardware/xmc4_ethernet.h  | 42 +++++++++-------------
 arch/arm/src/xmc4/hardware/xmc4_flash.h     | 42 +++++++++-------------
 arch/arm/src/xmc4/hardware/xmc4_memorymap.h | 42 +++++++++-------------
 arch/arm/src/xmc4/hardware/xmc4_ports.h     | 42 +++++++++-------------
 arch/arm/src/xmc4/hardware/xmc4_posif.h     | 15 ++++----
 arch/arm/src/xmc4/hardware/xmc4_scu.h       | 44 +++++++++--------------
 arch/arm/src/xmc4/hardware/xmc4_usic.h      | 42 +++++++++-------------
 arch/arm/src/xmc4/hardware/xmc4_vadc.h      |  3 ++
 arch/arm/src/xmc4/xmc4_clockconfig.c        | 46 ++++++++++--------------
 arch/arm/src/xmc4/xmc4_clockutils.c         | 52 +++++++++++----------------
 arch/arm/src/xmc4/xmc4_usic.c               | 54 ++++++++++++-----------------
 arch/arm/src/xmc4/xmc4_vadc.c               | 17 +++++----
 arch/arm/src/xmc4/xmc4_vadc.h               | 17 +++++----
 15 files changed, 220 insertions(+), 299 deletions(-)

diff --git a/arch/arm/src/xmc4/hardware/xmc4_ccu4.h 
b/arch/arm/src/xmc4/hardware/xmc4_ccu4.h
index 45bdde2e24..ff7ac1c090 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_ccu4.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_ccu4.h
@@ -1,39 +1,29 @@
 /****************************************************************************
  * arch/arm/src/xmc4/hardware/xmc4_ccu4.h
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
- * Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
+ *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
  *
  * Infineon Technologies AG (Infineon) is supplying this software for use
  * with Infineon's microcontrollers.  This file can be freely distributed
diff --git a/arch/arm/src/xmc4/hardware/xmc4_eru.h 
b/arch/arm/src/xmc4/hardware/xmc4_eru.h
index 4c479a4517..2dc79dd68b 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_eru.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_eru.h
@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/arm/src/xmc4/hardware/xmc4_eru.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
@@ -16,19 +18,22 @@
  * License for the specific language governing permissions and limitations
  * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
- * Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
+ *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
  *
  * Infineon Technologies AG (Infineon) is supplying this software for use
  * with Infineon's microcontrollers.  This file can be freely distributed
  * within development tools that are supporting such microcontrollers.
  *
- * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS,
- * IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
- * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
+ * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
  *
  ****************************************************************************/
 
diff --git a/arch/arm/src/xmc4/hardware/xmc4_ethernet.h 
b/arch/arm/src/xmc4/hardware/xmc4_ethernet.h
index 1454932def..1eed60a653 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_ethernet.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_ethernet.h
@@ -1,36 +1,26 @@
 /****************************************************************************
  * arch/arm/src/xmc4/hardware/xmc4_ethernet.h
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
  *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
diff --git a/arch/arm/src/xmc4/hardware/xmc4_flash.h 
b/arch/arm/src/xmc4/hardware/xmc4_flash.h
index 07db5c477e..3bba6c17d2 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_flash.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_flash.h
@@ -1,36 +1,26 @@
 /****************************************************************************
  * arch/arm/src/xmc4/hardware/xmc4_flash.h
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
  *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
diff --git a/arch/arm/src/xmc4/hardware/xmc4_memorymap.h 
b/arch/arm/src/xmc4/hardware/xmc4_memorymap.h
index fb97053c90..8e90ac1bfc 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_memorymap.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_memorymap.h
@@ -1,36 +1,26 @@
 /****************************************************************************
  * arch/arm/src/xmc4/hardware/xmc4_memorymap.h
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
  *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
diff --git a/arch/arm/src/xmc4/hardware/xmc4_ports.h 
b/arch/arm/src/xmc4/hardware/xmc4_ports.h
index 9cd009eb80..d107d58306 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_ports.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_ports.h
@@ -1,36 +1,26 @@
 /****************************************************************************
  * arch/arm/src/xmc4/hardware/xmc4_ports.h
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
  *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
diff --git a/arch/arm/src/xmc4/hardware/xmc4_posif.h 
b/arch/arm/src/xmc4/hardware/xmc4_posif.h
index 27a5e19602..da4e40515b 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_posif.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_posif.h
@@ -18,19 +18,22 @@
  * License for the specific language governing permissions and limitations
  * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
- * Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
+ *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
  *
  * Infineon Technologies AG (Infineon) is supplying this software for use
  * with Infineon's microcontrollers.  This file can be freely distributed
  * within development tools that are supporting such microcontrollers.
  *
- * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS,
- * IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
- * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
+ * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
  *
  ****************************************************************************/
 
diff --git a/arch/arm/src/xmc4/hardware/xmc4_scu.h 
b/arch/arm/src/xmc4/hardware/xmc4_scu.h
index 0f9d6c6a47..d7464f8494 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_scu.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_scu.h
@@ -1,39 +1,29 @@
 /****************************************************************************
  * arch/arm/src/xmc4/hardware/xmc4_scu.h
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
- * Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
+ *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
  *
  * Infineon Technologies AG (Infineon) is supplying this software for use
  * with Infineon's microcontrollers.  This file can be freely distributed
diff --git a/arch/arm/src/xmc4/hardware/xmc4_usic.h 
b/arch/arm/src/xmc4/hardware/xmc4_usic.h
index 7b171c1137..96a54db4fc 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_usic.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_usic.h
@@ -1,36 +1,26 @@
 /****************************************************************************
  * arch/arm/src/xmc4/hardware/xmc4_usic.h
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
  *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
diff --git a/arch/arm/src/xmc4/hardware/xmc4_vadc.h 
b/arch/arm/src/xmc4/hardware/xmc4_vadc.h
index 22fed1770a..9aaea47af8 100644
--- a/arch/arm/src/xmc4/hardware/xmc4_vadc.h
+++ b/arch/arm/src/xmc4/hardware/xmc4_vadc.h
@@ -18,6 +18,9 @@
  * License for the specific language governing permissions and limitations
  * under the License.
  *
+ 
******************************************************************************************************************/
+
+/******************************************************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
  * Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
diff --git a/arch/arm/src/xmc4/xmc4_clockconfig.c 
b/arch/arm/src/xmc4/xmc4_clockconfig.c
index 78924a619a..3ef4d1a933 100644
--- a/arch/arm/src/xmc4/xmc4_clockconfig.c
+++ b/arch/arm/src/xmc4/xmc4_clockconfig.c
@@ -1,36 +1,26 @@
 /****************************************************************************
  * arch/arm/src/xmc4/xmc4_clockconfig.c
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Authors: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
  *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
@@ -42,8 +32,8 @@
  * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS, IMPLIED
  * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
- * SOFTWARE.  INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
  *
  ****************************************************************************/
 
diff --git a/arch/arm/src/xmc4/xmc4_clockutils.c 
b/arch/arm/src/xmc4/xmc4_clockutils.c
index 3fba1cb3af..8bf9642c0c 100644
--- a/arch/arm/src/xmc4/xmc4_clockutils.c
+++ b/arch/arm/src/xmc4/xmc4_clockutils.c
@@ -1,36 +1,26 @@
 /****************************************************************************
  * arch/arm/src/xmc4/xmc4_clockutils.c
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Authors: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
  *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
@@ -39,11 +29,11 @@
  * with Infineon's microcontrollers.  This file can be freely distributed
  * within development tools that are supporting such microcontrollers.
  *
- * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS,
- * IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
- * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
+ * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
  *
  ****************************************************************************/
 
diff --git a/arch/arm/src/xmc4/xmc4_usic.c b/arch/arm/src/xmc4/xmc4_usic.c
index edf513fba2..de64a8bfc3 100644
--- a/arch/arm/src/xmc4/xmc4_usic.c
+++ b/arch/arm/src/xmc4/xmc4_usic.c
@@ -1,49 +1,39 @@
 /****************************************************************************
  * arch/arm/src/xmc4/xmc4_usic.c
  *
- *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
+ * 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
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
  *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
+ *   http://www.apache.org/licenses/LICENSE-2.0
  *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
  *
+ ****************************************************************************/
+
+/****************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
- * Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
+ *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
  *
  * Infineon Technologies AG (Infineon) is supplying this software for use
  * with Infineon's microcontrollers.  This file can be freely distributed
  * within development tools that are supporting such microcontrollers.
  *
- * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS,
- * IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
- * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
+ * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
  *
  ****************************************************************************/
 
diff --git a/arch/arm/src/xmc4/xmc4_vadc.c b/arch/arm/src/xmc4/xmc4_vadc.c
index f702402446..8cc6572b54 100644
--- a/arch/arm/src/xmc4/xmc4_vadc.c
+++ b/arch/arm/src/xmc4/xmc4_vadc.c
@@ -1,6 +1,8 @@
 
/**********************************************************************************************
  * arch/arm/src/xmc4/xmc4_vadc.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
@@ -16,19 +18,22 @@
  * License for the specific language governing permissions and limitations
  * under the License.
  *
+ 
**********************************************************************************************/
+
+/**********************************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
- * Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
+ *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
  *
  * Infineon Technologies AG (Infineon) is supplying this software for use
  * with Infineon's microcontrollers.  This file can be freely distributed
  * within development tools that are supporting such microcontrollers.
  *
- * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS,
- * IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
- * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
+ * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
  *
  
**********************************************************************************************/
 
diff --git a/arch/arm/src/xmc4/xmc4_vadc.h b/arch/arm/src/xmc4/xmc4_vadc.h
index 99935d746b..1b2b9d9ed9 100644
--- a/arch/arm/src/xmc4/xmc4_vadc.h
+++ b/arch/arm/src/xmc4/xmc4_vadc.h
@@ -1,6 +1,8 @@
 
/********************************************************************************************************
  * arch/arm/src/xmc4/xmc4_vadc.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
@@ -16,19 +18,22 @@
  * License for the specific language governing permissions and limitations
  * under the License.
  *
+ 
********************************************************************************************************/
+
+/********************************************************************************************************
  * May include some logic from sample code provided by Infineon:
  *
- * Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
+ *   Copyright (C) 2011-2015 Infineon Technologies AG. All rights reserved.
  *
  * Infineon Technologies AG (Infineon) is supplying this software for use
  * with Infineon's microcontrollers.  This file can be freely distributed
  * within development tools that are supporting such microcontrollers.
  *
- * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS,
- * IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
- * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * THIS SOFTWARE IS PROVIDED AS IS. NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS
+ * SOFTWARE. INFINEON SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
  *
  
********************************************************************************************************/
 


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