diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/Modules.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/Modules.h
index 826891d29e6..f7e3f88fa43 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/Modules.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/Modules.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_MODULES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralNames.h
index 5e4a4d69209..a704dc38090 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PERIPHERALNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralPins.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralPins.c
index cfd7cbf63d6..c5596175d19 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralPins.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralPins.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralPins.h
index 915eb475c13..a75e29db719 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralPins.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PeripheralPins.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PinNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PinNames.h
index a48cabc6377..257fc52db78 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PinNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PinNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PINNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PortNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PortNames.h
index 37dbdb15065..0504acd7e06 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PortNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/PortNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PORTNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device.h
index f021343664c..a06b2684f30 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device.h
@@ -1,5 +1,3 @@
-// The 'features' section in 'target.json' is now used to create the device's hardware preprocessor switches.
-// Check the 'features' section of the target description in 'targets.json' for more details.
 /***************************************************************************//**
  * @file device.h
  *******************************************************************************
@@ -7,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device_peripherals.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device_peripherals.h
index e3880a3e91e..1c2d352573a 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device_peripherals.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32GG_STK3700/device_peripherals.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_PERIPHERALS_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/Modules.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/Modules.h
index 01d490b57b8..c95b43ab378 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/Modules.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/Modules.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_MODULES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralNames.h
index 2e6e6073186..e06d7aab214 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PERIPHERALNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralPins.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralPins.c
index 34992c3d043..ab148d03599 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralPins.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralPins.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralPins.h
index 6999fb20b67..a19c09da7a0 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralPins.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PeripheralPins.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PinNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PinNames.h
index 4347918b8a5..72f46f581e4 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PinNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PinNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PINNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PortNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PortNames.h
index 37dbdb15065..0504acd7e06 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PortNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/PortNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PORTNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device.h
index b1b9c22ddfb..ea87df924cd 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device.h
@@ -1,5 +1,3 @@
-// The 'features' section in 'target.json' is now used to create the device's hardware preprocessor switches.
-// Check the 'features' section of the target description in 'targets.json' for more details.
 /***************************************************************************//**
  * @file device.h
  *******************************************************************************
@@ -7,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device_peripherals.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device_peripherals.h
index 6adbd884cac..6395601b1df 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device_peripherals.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32HG_STK3400/device_peripherals.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_PERIPHERALS_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/Modules.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/Modules.h
index 826891d29e6..f7e3f88fa43 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/Modules.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/Modules.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_MODULES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralNames.h
index 5e4a4d69209..a704dc38090 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PERIPHERALNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralPins.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralPins.c
index cfd7cbf63d6..c5596175d19 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralPins.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralPins.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralPins.h
index 915eb475c13..a75e29db719 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralPins.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PeripheralPins.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PinNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PinNames.h
index 3ca89801ba3..a1b5e958c75 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PinNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PinNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PINNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PortNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PortNames.h
index 37dbdb15065..0504acd7e06 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PortNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/PortNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PORTNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device.h
index fe9973ec60f..24f1a0e4ffc 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device.h
@@ -1,5 +1,3 @@
-// The 'features' section in 'target.json' is now used to create the device's hardware preprocessor switches.
-// Check the 'features' section of the target description in 'targets.json' for more details.
 /***************************************************************************//**
  * @file device.h
  *******************************************************************************
@@ -7,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device_peripherals.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device_peripherals.h
index e3880a3e91e..1c2d352573a 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device_peripherals.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32LG_STK3600/device_peripherals.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_PERIPHERALS_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/Modules.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/Modules.h
index 32bd7bd0e68..d105744a509 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/Modules.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/Modules.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_MODULES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralNames.h
index 95a383478e7..1da784f1667 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PERIPHERALNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralPins.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralPins.c
index 3fe020cd023..95baad0840a 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralPins.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third particularty.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralPins.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralPins.h
index c29f732a9e1..79d6072e833 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralPins.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PeripheralPins.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PinNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PinNames.h
index 1d194a7a38a..629a10b6587 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PinNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PinNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PINNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PortNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PortNames.h
index fcc4994d46b..370f960336a 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PortNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/PortNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PORTNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/device.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/device.h
index fe9973ec60f..24f1a0e4ffc 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/device.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/device.h
@@ -1,5 +1,3 @@
-// The 'features' section in 'target.json' is now used to create the device's hardware preprocessor switches.
-// Check the 'features' section of the target description in 'targets.json' for more details.
 /***************************************************************************//**
  * @file device.h
  *******************************************************************************
@@ -7,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/device_peripherals.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/device_peripherals.h
index bcc54c37740..96715456458 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/device_peripherals.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32PG_STK3401/device_peripherals.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_PERIPHERALS_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/Modules.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/Modules.h
index 826891d29e6..f7e3f88fa43 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/Modules.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/Modules.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_MODULES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralNames.h
index 5e4a4d69209..a704dc38090 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PERIPHERALNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralPins.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralPins.c
index cfd7cbf63d6..c5596175d19 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralPins.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralPins.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralPins.h
index 915eb475c13..a75e29db719 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralPins.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PeripheralPins.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PinNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PinNames.h
index 3ca89801ba3..a1b5e958c75 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PinNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PinNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PINNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PortNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PortNames.h
index 37dbdb15065..0504acd7e06 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PortNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/PortNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PORTNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device.h
index fe9973ec60f..24f1a0e4ffc 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device.h
@@ -1,5 +1,3 @@
-// The 'features' section in 'target.json' is now used to create the device's hardware preprocessor switches.
-// Check the 'features' section of the target description in 'targets.json' for more details.
 /***************************************************************************//**
  * @file device.h
  *******************************************************************************
@@ -7,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device_peripherals.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device_peripherals.h
index e3880a3e91e..1c2d352573a 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device_peripherals.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32WG_STK3800/device_peripherals.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_PERIPHERALS_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/Modules.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/Modules.h
index 2b3ba49aa7c..f7a2c37b656 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/Modules.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/Modules.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_MODULES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralNames.h
index 457a495cd60..bfbb6c9e709 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PERIPHERALNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralPins.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralPins.c
index d159bdcb4e7..ba9eb5d702b 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralPins.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralPins.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralPins.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralPins.h
index 6999fb20b67..a19c09da7a0 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralPins.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PeripheralPins.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PinNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PinNames.h
index 171076557df..75686cfc2ee 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PinNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PinNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PINNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PortNames.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PortNames.h
index 37dbdb15065..0504acd7e06 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PortNames.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/PortNames.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_PORTNAMES_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device.h
index 30f7f17aaa3..8a9638615b9 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device.h
@@ -1,5 +1,3 @@
-// The 'features' section in 'target.json' is now used to create the device's hardware preprocessor switches.
-// Check the 'features' section of the target description in 'targets.json' for more details.
 /***************************************************************************//**
  * @file device.h
  *******************************************************************************
@@ -7,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device_peripherals.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device_peripherals.h
index fab34df4c83..f0a2970077b 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device_peripherals.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/TARGET_EFM32ZG_STK3200/device_peripherals.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 #ifndef MBED_DEVICE_PERIPHERALS_H
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/analogin_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/analogin_api.c
index 0ca35626433..c690cb499a1 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/analogin_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/analogin_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/analogout_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/analogout_api.c
index 902b0bf6425..688aecd421f 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/analogout_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/analogout_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/clocking.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/clocking.h
index 47c88869479..9274fdbaa60 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/clocking.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/clocking.h
@@ -6,26 +6,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api.c
index 51d20b76ce7..9a710bc989d 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api_HAL.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api_HAL.h
index daec218c3bd..aaafb360cd4 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api_HAL.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/dma_api_HAL.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/error.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/error.h
index 36f0cf1b2ea..2515ee4cbbf 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/error.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/error.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/gpio_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/gpio_api.c
index 7546ce7523c..8447f3e94f6 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/gpio_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/gpio_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/gpio_irq_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/gpio_irq_api.c
index 2a5a8667211..c189c1b102b 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/gpio_irq_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/gpio_irq_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/i2c_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/i2c_api.c
index 471481c0a11..7c8f50e200b 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/i2c_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/i2c_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/lp_ticker.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/lp_ticker.c
index 0498a7b599c..97b910ea683 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/lp_ticker.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/lp_ticker.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/mbed_overrides.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/mbed_overrides.c
index f5b08c53435..c48a58fbe9f 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/mbed_overrides.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/mbed_overrides.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/objects.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/objects.h
index fe6010c44d9..4a67f222432 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/objects.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/objects.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap.c
index a0ffce796b0..4a9cfbb4ed7 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap_function.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap_function.c
index c7aa0e2fa20..512cc13e01d 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap_function.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap_function.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap_function.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap_function.h
index 45e6cc14e30..c47bdf1632b 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap_function.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap_function.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/port_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/port_api.c
index 4e5b01e6850..dcada08c798 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/port_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/port_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pwmout_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pwmout_api.c
index 58f43259493..67c1b24dade 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pwmout_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pwmout_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c
index 49e6c066e5c..fd157202ecc 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api_HAL.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api_HAL.h
index 733e343a96f..a265e13e470 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api_HAL.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/rtc_api_HAL.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/serial_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/serial_api.c
index 9dab25bbbed..04f71583e24 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/serial_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/serial_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/serial_api_HAL.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/serial_api_HAL.h
index 613aebb7f79..54168fa6d9d 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/serial_api_HAL.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/serial_api_HAL.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/sleep.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/sleep.c
index f56d9257deb..a466ba619b9 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/sleep.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/sleep.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/sleepmodes.h b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/sleepmodes.h
index 5f1cc631a0f..31ff5930da5 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/sleepmodes.h
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/sleepmodes.h
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/spi_api.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/spi_api.c
index bc61ae73e2c..92b3789e7ff 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/spi_api.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/spi_api.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/
 
diff --git a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/us_ticker.c b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/us_ticker.c
index a909990dd40..6fa3b901972 100644
--- a/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/us_ticker.c
+++ b/hal/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/us_ticker.c
@@ -5,26 +5,19 @@
  * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
  *******************************************************************************
  *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
+ * SPDX-License-Identifier: Apache-2.0
  *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
+ * Licensed 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
  *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
+ * 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.
  *
  ******************************************************************************/