arch/xtensa: migrate to SPDX identifier

Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

arch/xtensa/include/arch.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/arch.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/elf.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/elf.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32/chip.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32/chip.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32/esp32_himem_chardev.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32/esp32_himem_chardev.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32/esp_efuse_table.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32/esp_efuse_table.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32/irq.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32/irq.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32/memory_layout.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32/memory_layout.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32s2/chip.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32s2/chip.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32s2/irq.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32s2/irq.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32s3/chip.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32s3/chip.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32s3/irq.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32s3/irq.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32s3/memory_layout.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32s3/memory_layout.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/esp32s3/partition.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/esp32s3/partition.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/inttypes.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/inttypes.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/irq.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/irq.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/limits.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/limits.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/loadstore.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/loadstore.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/lx6/chip.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/lx6/chip.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/lx6/irq.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/lx6/irq.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/lx7/chip.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/lx7/chip.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/lx7/irq.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/lx7/irq.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/setjmp.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/setjmp.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/simcall.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/simcall.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/spinlock.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/spinlock.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/stdarg.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/stdarg.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/syscall.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/syscall.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/types.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/types.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/include/xtensa/core_macros.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/include/xtensa/core_macros.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/CMakeLists.txt

@@ -1,6 +1,8 @@
 # ##############################################################################
 # arch/xtensa/src/CMakeLists.txt
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more contributor
 # license agreements.  See the NOTICE file distributed with this work for
 # additional information regarding copyright ownership.  The ASF licenses this
@@ -17,6 +19,7 @@
 # the License.
 #
 # ##############################################################################
+
 add_subdirectory(common)
 add_subdirectory(${NUTTX_CHIP_ABS_DIR} EXCLUDE_FROM_ALL exclude_chip)
 # Include directories (before system ones) as PUBLIC so that it can be exposed

arch/xtensa/src/Makefile

@@ -1,6 +1,8 @@
 ############################################################################
 # arch/xtensa/src/Makefile
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The

arch/xtensa/src/cmake/Toolchain.cmake

@@ -1,6 +1,8 @@
 # ##############################################################################
 # arch/xtensa/src/cmake/Toolchain.cmake
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more contributor
 # license agreements.  See the NOTICE file distributed with this work for
 # additional information regarding copyright ownership.  The ASF licenses this

arch/xtensa/src/cmake/platform.cmake

@@ -1,6 +1,8 @@
 # ##############################################################################
 # arch/xtensa/src/cmake/platform.cmake
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more contributor
 # license agreements.  See the NOTICE file distributed with this work for
 # additional information regarding copyright ownership.  The ASF licenses this

arch/xtensa/src/common/CMakeLists.txt

@@ -1,6 +1,8 @@
 # ##############################################################################
 # arch/xtensa/src/common/CMakeLists.txt
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more contributor
 # license agreements.  See the NOTICE file distributed with this work for
 # additional information regarding copyright ownership.  The ASF licenses this

arch/xtensa/src/common/Make.defs

@@ -1,6 +1,8 @@
 ############################################################################
 # arch/xtensa/src/common/Make.defs
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/Make.defs

@@ -1,6 +1,8 @@
 ############################################################################
 # arch/xtensa/src/common/espressif/Make.defs
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/Wireless.mk

@@ -1,6 +1,8 @@
 ############################################################################
 # arch/xtensa/src/common/espressif/Wireless.mk
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_i2c_bitbang.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_i2c_bitbang.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_i2c_bitbang.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_i2c_bitbang.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_loader.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_loader.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_loader.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_loader.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_mcpwm.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_mcpwm.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_mcpwm.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_mcpwm.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_openeth.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_openeth.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_rmt.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_rmt.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_rmt.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_rmt.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_spiflash.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_spiflash.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_spiflash.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_spiflash.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_spiflash_mtd.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_spiflash_mtd.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_spiflash_mtd.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_spiflash_mtd.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/xtensa/src/common/espressif/esp_temperature_sensor.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/xtensa/src/common/espressif/esp_temperature_sensor.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The