diff --git a/configure.ac b/configure.ac
index 4e3673b0..588f205a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,12 +1,10 @@
+# SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
 #
 # NFB framework configure script
 #
 # Copyright (C) 2018 CESNET
 # Author(s):
 #     Martin Spinler <spinler@cesnet.cz>
-#
-# SPDX-License-Identifier: GPL-2.0
-#
 
 # ----[ SECTION: Autoconf setup ]---- #
 AC_PREREQ([2.63])
diff --git a/drivers/Makefile.conf b/drivers/Makefile.conf
index 243b4c4d..8c291f96 100644
--- a/drivers/Makefile.conf
+++ b/drivers/Makefile.conf
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
 #
 # Configuration Makefile for NFB driver
 #
@@ -5,9 +6,6 @@
 #
 # Author(s):
 #   Martin Spinler <spinler@cesnet.cz>
-#
-# SPDX-License-Identifier: GPL-2.0
-#
 
 CONFIG_MODULES      = y
 CONFIG_NFB          = m
diff --git a/drivers/Makefile.in b/drivers/Makefile.in
index 03e611b0..8a518770 100644
--- a/drivers/Makefile.in
+++ b/drivers/Makefile.in
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
 #
 # NFB driver Makefile
 #
diff --git a/drivers/configure.ac b/drivers/configure.ac
index 0e35e475..e6a61b68 100644
--- a/drivers/configure.ac
+++ b/drivers/configure.ac
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
 #
 # Configure script for NFB driver
 #
diff --git a/drivers/kernel/drivers/Makefile b/drivers/kernel/drivers/Makefile
index e73f8459..8ae716f4 100644
--- a/drivers/kernel/drivers/Makefile
+++ b/drivers/kernel/drivers/Makefile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
 #
 # Makefile for NFB driver
 #
diff --git a/drivers/kernel/drivers/nfb/Makefile b/drivers/kernel/drivers/nfb/Makefile
index a980087e..6f6fc815 100644
--- a/drivers/kernel/drivers/nfb/Makefile
+++ b/drivers/kernel/drivers/nfb/Makefile
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
 #
 # NFB driver Makefile
 #
diff --git a/drivers/kernel/drivers/nfb/boot/boot.c b/drivers/kernel/drivers/nfb/boot/boot.c
index b5211bd6..4b4bf7d4 100644
--- a/drivers/kernel/drivers/nfb/boot/boot.c
+++ b/drivers/kernel/drivers/nfb/boot/boot.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Boot driver module header of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/boot/boot.h b/drivers/kernel/drivers/nfb/boot/boot.h
index 923dab84..72c2858d 100644
--- a/drivers/kernel/drivers/nfb/boot/boot.h
+++ b/drivers/kernel/drivers/nfb/boot/boot.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Boot driver module header of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/boot/flash.c b/drivers/kernel/drivers/nfb/boot/flash.c
index d1f943c9..8c449d91 100644
--- a/drivers/kernel/drivers/nfb/boot/flash.c
+++ b/drivers/kernel/drivers/nfb/boot/flash.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Boot driver of the NFB platform - flash module
  *
diff --git a/drivers/kernel/drivers/nfb/boot/gecko.c b/drivers/kernel/drivers/nfb/boot/gecko.c
index a223dd41..f25d80fb 100644
--- a/drivers/kernel/drivers/nfb/boot/gecko.c
+++ b/drivers/kernel/drivers/nfb/boot/gecko.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Boot driver of the NFB platform - gecko module
  *
diff --git a/drivers/kernel/drivers/nfb/boot/gecko.h b/drivers/kernel/drivers/nfb/boot/gecko.h
index 84c82f87..a435b9ec 100644
--- a/drivers/kernel/drivers/nfb/boot/gecko.h
+++ b/drivers/kernel/drivers/nfb/boot/gecko.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Boot driver of the NFB platform - gecko module
  *
diff --git a/drivers/kernel/drivers/nfb/boot/nfb-pmci.c b/drivers/kernel/drivers/nfb/boot/nfb-pmci.c
index f658897d..552246f4 100644
--- a/drivers/kernel/drivers/nfb/boot/nfb-pmci.c
+++ b/drivers/kernel/drivers/nfb/boot/nfb-pmci.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Boot driver module for Intel M10 BMC
  *
diff --git a/drivers/kernel/drivers/nfb/boot/nfb-pmci.h b/drivers/kernel/drivers/nfb/boot/nfb-pmci.h
index 005defc4..7203a871 100644
--- a/drivers/kernel/drivers/nfb/boot/nfb-pmci.h
+++ b/drivers/kernel/drivers/nfb/boot/nfb-pmci.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Boot driver module header for Intel M10 BMC
  *
diff --git a/drivers/kernel/drivers/nfb/boot/reload.c b/drivers/kernel/drivers/nfb/boot/reload.c
index 54808f9b..c2ff8c34 100644
--- a/drivers/kernel/drivers/nfb/boot/reload.c
+++ b/drivers/kernel/drivers/nfb/boot/reload.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Boot driver of the NFB platform - reload module
  *
diff --git a/drivers/kernel/drivers/nfb/boot/sdm.c b/drivers/kernel/drivers/nfb/boot/sdm.c
index 7de157eb..c371b90c 100644
--- a/drivers/kernel/drivers/nfb/boot/sdm.c
+++ b/drivers/kernel/drivers/nfb/boot/sdm.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * sdm.c: SDM Client commands implementation
  *
diff --git a/drivers/kernel/drivers/nfb/boot/sdm.h b/drivers/kernel/drivers/nfb/boot/sdm.h
index 185880f6..da436b4a 100644
--- a/drivers/kernel/drivers/nfb/boot/sdm.h
+++ b/drivers/kernel/drivers/nfb/boot/sdm.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * sdm.h: SDM Client commands header file
  *
diff --git a/drivers/kernel/drivers/nfb/bus.c b/drivers/kernel/drivers/nfb/bus.c
index e3281429..eff3b21b 100644
--- a/drivers/kernel/drivers/nfb/bus.c
+++ b/drivers/kernel/drivers/nfb/bus.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Component and bus driver module of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/char.c b/drivers/kernel/drivers/nfb/char.c
index 65179380..43c6ac37 100644
--- a/drivers/kernel/drivers/nfb/char.c
+++ b/drivers/kernel/drivers/nfb/char.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Char driver module of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/core.c b/drivers/kernel/drivers/nfb/core.c
index 85c3774d..3bcb97ec 100644
--- a/drivers/kernel/drivers/nfb/core.c
+++ b/drivers/kernel/drivers/nfb/core.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Core driver module of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/fdt.h b/drivers/kernel/drivers/nfb/fdt.h
index a30c725f..9a561ed8 100644
--- a/drivers/kernel/drivers/nfb/fdt.h
+++ b/drivers/kernel/drivers/nfb/fdt.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * libfdt extension of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon.c b/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon.c
index 4c0fb84d..43746653 100644
--- a/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon.c
+++ b/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * HWMon driver module of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon.h b/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon.h
index e07e0905..6a09b231 100644
--- a/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon.h
+++ b/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * HWMon driver module header of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon_transceiver.h b/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon_transceiver.h
index f44d7050..a2308e6e 100644
--- a/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon_transceiver.h
+++ b/drivers/kernel/drivers/nfb/hwmon/nfb_hwmon_transceiver.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * HWMon helper library - transciever sensors functions
  *
diff --git a/drivers/kernel/drivers/nfb/lock.c b/drivers/kernel/drivers/nfb/lock.c
index b2b9def5..8720a723 100644
--- a/drivers/kernel/drivers/nfb/lock.c
+++ b/drivers/kernel/drivers/nfb/lock.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * MI bus driver module of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/mi/mi.c b/drivers/kernel/drivers/nfb/mi/mi.c
index a09828bd..f3654c98 100644
--- a/drivers/kernel/drivers/nfb/mi/mi.c
+++ b/drivers/kernel/drivers/nfb/mi/mi.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * MI bus driver of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/mi/mi.h b/drivers/kernel/drivers/nfb/mi/mi.h
index 114c826d..a0848337 100644
--- a/drivers/kernel/drivers/nfb/mi/mi.h
+++ b/drivers/kernel/drivers/nfb/mi/mi.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * MI driver header of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/misc.c b/drivers/kernel/drivers/nfb/misc.c
index 5b2153c8..9c6d56ec 100644
--- a/drivers/kernel/drivers/nfb/misc.c
+++ b/drivers/kernel/drivers/nfb/misc.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Misc functions of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/misc.h b/drivers/kernel/drivers/nfb/misc.h
index 0c9f2d61..8284c9ae 100644
--- a/drivers/kernel/drivers/nfb/misc.h
+++ b/drivers/kernel/drivers/nfb/misc.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Header for misc functionality of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/channel.c b/drivers/kernel/drivers/nfb/ndp/channel.c
index d0c10f36..d2cbe19f 100644
--- a/drivers/kernel/drivers/nfb/ndp/channel.c
+++ b/drivers/kernel/drivers/nfb/ndp/channel.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - transmission channel module
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/char.c b/drivers/kernel/drivers/nfb/ndp/char.c
index 729cf053..1262e3ab 100644
--- a/drivers/kernel/drivers/nfb/ndp/char.c
+++ b/drivers/kernel/drivers/nfb/ndp/char.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - char module
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/ctrl.c b/drivers/kernel/drivers/nfb/ndp/ctrl.c
index a9c5bb81..a04ac454 100644
--- a/drivers/kernel/drivers/nfb/ndp/ctrl.c
+++ b/drivers/kernel/drivers/nfb/ndp/ctrl.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - DMA controller - SZE/v1 type
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/ctrl_ndp.c b/drivers/kernel/drivers/nfb/ndp/ctrl_ndp.c
index 5c00a016..0455baa0 100644
--- a/drivers/kernel/drivers/nfb/ndp/ctrl_ndp.c
+++ b/drivers/kernel/drivers/nfb/ndp/ctrl_ndp.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - DMA controller - Medusa/v2 type, Calypte/v3 type
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/driver.c b/drivers/kernel/drivers/nfb/ndp/driver.c
index ff6a049f..b9aebbed 100644
--- a/drivers/kernel/drivers/nfb/ndp/driver.c
+++ b/drivers/kernel/drivers/nfb/ndp/driver.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - main module
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/kndp.c b/drivers/kernel/drivers/nfb/ndp/kndp.c
index cccd0481..407830c4 100644
--- a/drivers/kernel/drivers/nfb/ndp/kndp.c
+++ b/drivers/kernel/drivers/nfb/ndp/kndp.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - sync module
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/kndp.h b/drivers/kernel/drivers/nfb/ndp/kndp.h
index 7371ef33..a2821d50 100644
--- a/drivers/kernel/drivers/nfb/ndp/kndp.h
+++ b/drivers/kernel/drivers/nfb/ndp/kndp.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - public header
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/ndp.h b/drivers/kernel/drivers/nfb/ndp/ndp.h
index c94216eb..b3c9b9dc 100644
--- a/drivers/kernel/drivers/nfb/ndp/ndp.h
+++ b/drivers/kernel/drivers/nfb/ndp/ndp.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - private header
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/ring.c b/drivers/kernel/drivers/nfb/ndp/ring.c
index 0b43fa67..861502d9 100644
--- a/drivers/kernel/drivers/nfb/ndp/ring.c
+++ b/drivers/kernel/drivers/nfb/ndp/ring.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - ring buffer module
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/subscriber.c b/drivers/kernel/drivers/nfb/ndp/subscriber.c
index 940ba2d6..2cc9f15a 100644
--- a/drivers/kernel/drivers/nfb/ndp/subscriber.c
+++ b/drivers/kernel/drivers/nfb/ndp/subscriber.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - subscriber module
  *
diff --git a/drivers/kernel/drivers/nfb/ndp/subscription.c b/drivers/kernel/drivers/nfb/ndp/subscription.c
index 8ffde825..7cdf9a5d 100644
--- a/drivers/kernel/drivers/nfb/ndp/subscription.c
+++ b/drivers/kernel/drivers/nfb/ndp/subscription.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP driver of the NFB platform - subscription module
  *
diff --git a/drivers/kernel/drivers/nfb/ndp_netdev/core.c b/drivers/kernel/drivers/nfb/ndp_netdev/core.c
index 6c959ac6..1d1b505e 100644
--- a/drivers/kernel/drivers/nfb/ndp_netdev/core.c
+++ b/drivers/kernel/drivers/nfb/ndp_netdev/core.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP backend network interface driver of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/ndp_netdev/core.h b/drivers/kernel/drivers/nfb/ndp_netdev/core.h
index 0f8b660a..dd410b1d 100644
--- a/drivers/kernel/drivers/nfb/ndp_netdev/core.h
+++ b/drivers/kernel/drivers/nfb/ndp_netdev/core.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP backend network interface driver of the NFB platform - main header
  *
diff --git a/drivers/kernel/drivers/nfb/net/compat.h b/drivers/kernel/drivers/nfb/net/compat.h
index 1294241f..7a0b5aaf 100644
--- a/drivers/kernel/drivers/nfb/net/compat.h
+++ b/drivers/kernel/drivers/nfb/net/compat.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * NDP backend network interface driver of the NFB platform - compatibility hdr
  *
diff --git a/drivers/kernel/drivers/nfb/net/device.c b/drivers/kernel/drivers/nfb/net/device.c
index 462d8a31..4df3eab3 100644
--- a/drivers/kernel/drivers/nfb/net/device.c
+++ b/drivers/kernel/drivers/nfb/net/device.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Network interface driver of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/net/driver.c b/drivers/kernel/drivers/nfb/net/driver.c
index d7ad297f..544da90c 100644
--- a/drivers/kernel/drivers/nfb/net/driver.c
+++ b/drivers/kernel/drivers/nfb/net/driver.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Network interface driver of the NFB platform - core
  *
diff --git a/drivers/kernel/drivers/nfb/net/ethtool.c b/drivers/kernel/drivers/nfb/net/ethtool.c
index 60d5192e..6594addf 100644
--- a/drivers/kernel/drivers/nfb/net/ethtool.c
+++ b/drivers/kernel/drivers/nfb/net/ethtool.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Network interface driver of the NFB platform - ethtool support
  *
diff --git a/drivers/kernel/drivers/nfb/net/net.h b/drivers/kernel/drivers/nfb/net/net.h
index 4501857b..7b364c9a 100644
--- a/drivers/kernel/drivers/nfb/net/net.h
+++ b/drivers/kernel/drivers/nfb/net/net.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Network interface driver of the NFB platform - main header
  *
diff --git a/drivers/kernel/drivers/nfb/net/sysfs.c b/drivers/kernel/drivers/nfb/net/sysfs.c
index 37e909ec..75b66761 100644
--- a/drivers/kernel/drivers/nfb/net/sysfs.c
+++ b/drivers/kernel/drivers/nfb/net/sysfs.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Network interface driver of the NFB platform - sysfs support
  *
diff --git a/drivers/kernel/drivers/nfb/nfb.h b/drivers/kernel/drivers/nfb/nfb.h
index 76949465..b371ffe0 100644
--- a/drivers/kernel/drivers/nfb/nfb.h
+++ b/drivers/kernel/drivers/nfb/nfb.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Main driver private header of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/pci.c b/drivers/kernel/drivers/nfb/pci.c
index 37d5ae2e..3df1d11b 100644
--- a/drivers/kernel/drivers/nfb/pci.c
+++ b/drivers/kernel/drivers/nfb/pci.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * PCI driver module of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/pci.h b/drivers/kernel/drivers/nfb/pci.h
index a372e3b4..ce1f7a55 100644
--- a/drivers/kernel/drivers/nfb/pci.h
+++ b/drivers/kernel/drivers/nfb/pci.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * PCI driver module header of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/qdr/qdr.c b/drivers/kernel/drivers/nfb/qdr/qdr.c
index d4f914e7..2d7297c8 100644
--- a/drivers/kernel/drivers/nfb/qdr/qdr.c
+++ b/drivers/kernel/drivers/nfb/qdr/qdr.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * QDR driver module of the NFB platform
  *
diff --git a/drivers/kernel/drivers/nfb/qdr/qdr.h b/drivers/kernel/drivers/nfb/qdr/qdr.h
index adc084a5..1c837758 100644
--- a/drivers/kernel/drivers/nfb/qdr/qdr.h
+++ b/drivers/kernel/drivers/nfb/qdr/qdr.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * QDR driver module of the NFB platform - header file
  *
diff --git a/drivers/kernel/include/linux/nfb/boot.h b/drivers/kernel/include/linux/nfb/boot.h
index 51e96577..52d8cb4f 100644
--- a/drivers/kernel/include/linux/nfb/boot.h
+++ b/drivers/kernel/include/linux/nfb/boot.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * NFB driver Boot component public header
  *
diff --git a/drivers/kernel/include/linux/nfb/ndp.h b/drivers/kernel/include/linux/nfb/ndp.h
index b62e3d6e..96585f2a 100644
--- a/drivers/kernel/include/linux/nfb/ndp.h
+++ b/drivers/kernel/include/linux/nfb/ndp.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * Interface to the NDP interface
  *
diff --git a/drivers/kernel/include/linux/nfb/nfb.h b/drivers/kernel/include/linux/nfb/nfb.h
index 74d7826a..480289f8 100644
--- a/drivers/kernel/include/linux/nfb/nfb.h
+++ b/drivers/kernel/include/linux/nfb/nfb.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * NFB driver public header file
  *
diff --git a/ext/libnfb_ext_grpc/CMakeLists.txt b/ext/libnfb_ext_grpc/CMakeLists.txt
index 64e5285f..7f34d2f0 100644
--- a/ext/libnfb_ext_grpc/CMakeLists.txt
+++ b/ext/libnfb_ext_grpc/CMakeLists.txt
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: BSD-3-Clause
 #
 # CMake build file for NFB debug tools
 #
diff --git a/libnfb/include/netcope/dma_ctrl_ndp.h b/libnfb/include/netcope/dma_ctrl_ndp.h
index bcef16ab..d7ca227e 100644
--- a/libnfb/include/netcope/dma_ctrl_ndp.h
+++ b/libnfb/include/netcope/dma_ctrl_ndp.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /*
  * Network component library - DMA controller - NDP/v2 type, CALYPTE/v3 type
  *
diff --git a/libnfb/src/ndp/ndp.c b/libnfb/src/ndp/ndp.c
index 0facca39..a2095b8a 100644
--- a/libnfb/src/ndp/ndp.c
+++ b/libnfb/src/ndp/ndp.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * NDP driver of the NFB platform - sync module
  *
diff --git a/python/nfb-tools/CMakeLists.txt b/python/nfb-tools/CMakeLists.txt
index c83ee1b3..839913b1 100644
--- a/python/nfb-tools/CMakeLists.txt
+++ b/python/nfb-tools/CMakeLists.txt
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: BSD-3-Clause
 #
 # CMake build file for NFB python tools
 #
diff --git a/tools-debug/CMakeLists.txt b/tools-debug/CMakeLists.txt
index acbaef73..8552d361 100644
--- a/tools-debug/CMakeLists.txt
+++ b/tools-debug/CMakeLists.txt
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: BSD-3-Clause
 #
 # CMake build file for NFB debug tools
 #
diff --git a/tools-debug/busdebugctl/busdebugctl.c b/tools-debug/busdebugctl/busdebugctl.c
index 00901bcd..f3b76087 100644
--- a/tools-debug/busdebugctl/busdebugctl.c
+++ b/tools-debug/busdebugctl/busdebugctl.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*!
  * \file busdebugctl.c
  * \brief Tool for controlling the data streaming bus debuging master and connected probes. (STREAMING_DEBUG)
diff --git a/tools-debug/busdump/busdump.c b/tools-debug/busdump/busdump.c
index 0671ac88..0081a4fb 100644
--- a/tools-debug/busdump/busdump.c
+++ b/tools-debug/busdump/busdump.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*!
  * \file busdump.c
  * \brief Tool to read dumped Frame Link Unaligned data from firmware
diff --git a/tools-debug/busreplay/busreplay.c b/tools-debug/busreplay/busreplay.c
index 45c808d7..0a2e0c95 100644
--- a/tools-debug/busreplay/busreplay.c
+++ b/tools-debug/busreplay/busreplay.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*!
  * \file busreplay.c
  * \brief Tool to write dumped Frame Link Unaligned data into firmware
diff --git a/tools-debug/nfb-mi-test/nfb-mi-test.c b/tools-debug/nfb-mi-test/nfb-mi-test.c
index 1ddc8c0e..cdc0709a 100644
--- a/tools-debug/nfb-mi-test/nfb-mi-test.c
+++ b/tools-debug/nfb-mi-test/nfb-mi-test.c
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  *  MI test tool
  *
  *  Copyright (C) CESNET, 2024
  *  Author(s):
  *    Martin Spinler <spinler@cesnet.cz>
- *
- *  SPDX-License-Identifier: GPL-2.0
  */
 
 #include <sys/types.h>
diff --git a/tools-misc/CMakeLists.txt b/tools-misc/CMakeLists.txt
index 0799b465..b18c167a 100644
--- a/tools-misc/CMakeLists.txt
+++ b/tools-misc/CMakeLists.txt
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: BSD-3-Clause
 #
 # CMake build file for NFB miscellaneous tools
 #
diff --git a/tools-misc/nfb-flash-ident/flashident.c b/tools-misc/nfb-flash-ident/flashident.c
index dbd7373a..f4b6cf37 100644
--- a/tools-misc/nfb-flash-ident/flashident.c
+++ b/tools-misc/nfb-flash-ident/flashident.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Board identification tool
  *
diff --git a/tools-misc/nfb-flash-read/flashread.c b/tools-misc/nfb-flash-read/flashread.c
index 378670e4..a00fbda8 100644
--- a/tools-misc/nfb-flash-read/flashread.c
+++ b/tools-misc/nfb-flash-read/flashread.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Flash/MTD memory read tool
  *
diff --git a/tools-misc/nfb-spi-max/max-spi.c b/tools-misc/nfb-spi-max/max-spi.c
index 782ff26e..cb7aef0f 100644
--- a/tools-misc/nfb-spi-max/max-spi.c
+++ b/tools-misc/nfb-spi-max/max-spi.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Tool for access MAX chip over SPI on specific boards
  *
diff --git a/tools/CMakeLists.txt b/tools/CMakeLists.txt
index cd9a39c5..a6decd58 100644
--- a/tools/CMakeLists.txt
+++ b/tools/CMakeLists.txt
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: BSD-3-Clause
 #
 # CMake build file for NFB tools
 #
diff --git a/tools/boot/boot.c b/tools/boot/boot.c
index d305313b..54ed37c1 100644
--- a/tools/boot/boot.c
+++ b/tools/boot/boot.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Flash and boot tool
  *
diff --git a/tools/bus/bus.c b/tools/bus/bus.c
index e7d18ff8..e60bf74c 100644
--- a/tools/bus/bus.c
+++ b/tools/bus/bus.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Firmware bus tool
  *
diff --git a/tools/dma/dma.c b/tools/dma/dma.c
index 562795a2..271ac111 100644
--- a/tools/dma/dma.c
+++ b/tools/dma/dma.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * DMA controller status tool
  *
diff --git a/tools/eth/cfp2.c b/tools/eth/cfp2.c
index 765edadf..38c53237 100644
--- a/tools/eth/cfp2.c
+++ b/tools/eth/cfp2.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - CFP2 control
  *
diff --git a/tools/eth/eth.h b/tools/eth/eth.h
index 840ef680..b2872403 100644
--- a/tools/eth/eth.h
+++ b/tools/eth/eth.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - private header
  *
diff --git a/tools/eth/ieee802_3.c b/tools/eth/ieee802_3.c
index e3eaee87..e7d43b35 100644
--- a/tools/eth/ieee802_3.c
+++ b/tools/eth/ieee802_3.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - IEEE 802.3 registers
  *
diff --git a/tools/eth/ieee802_3.h b/tools/eth/ieee802_3.h
index 1dec01ae..fb7df72c 100644
--- a/tools/eth/ieee802_3.h
+++ b/tools/eth/ieee802_3.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - IEEE 802.3 registers header file
  *
diff --git a/tools/eth/main.c b/tools/eth/main.c
index c2347029..6218e037 100644
--- a/tools/eth/main.c
+++ b/tools/eth/main.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool
  *
diff --git a/tools/eth/mdio.h b/tools/eth/mdio.h
index 340e8eb1..cd580c18 100644
--- a/tools/eth/mdio.h
+++ b/tools/eth/mdio.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - private MDIO header
  *
diff --git a/tools/eth/pcspma.c b/tools/eth/pcspma.c
index c87a257e..7aa13a10 100644
--- a/tools/eth/pcspma.c
+++ b/tools/eth/pcspma.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - PCS/PMA control
  *
diff --git a/tools/eth/qsfpp.c b/tools/eth/qsfpp.c
index 1bc4f7ef..c4d296a6 100644
--- a/tools/eth/qsfpp.c
+++ b/tools/eth/qsfpp.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - QSFP+ control
  *
diff --git a/tools/eth/query.c b/tools/eth/query.c
index b8c281b4..afa51e48 100644
--- a/tools/eth/query.c
+++ b/tools/eth/query.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - query interface
  *
diff --git a/tools/eth/rxmac.c b/tools/eth/rxmac.c
index f77a2a4e..3d8f2f17 100644
--- a/tools/eth/rxmac.c
+++ b/tools/eth/rxmac.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - RX MAC control
  *
diff --git a/tools/eth/transceiver.c b/tools/eth/transceiver.c
index 7224df0d..70bc1e28 100644
--- a/tools/eth/transceiver.c
+++ b/tools/eth/transceiver.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - transceiver control
  *
diff --git a/tools/eth/txmac.c b/tools/eth/txmac.c
index 27b2fe7e..8f79ba47 100644
--- a/tools/eth/txmac.c
+++ b/tools/eth/txmac.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Ethernet interface configuration tool - TX MAC control
  *
diff --git a/tools/info/info.c b/tools/info/info.c
index dd2fb0d8..d51dbd05 100644
--- a/tools/info/info.c
+++ b/tools/info/info.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Basic information tool
  *
diff --git a/tools/mdio/mdio.c b/tools/mdio/mdio.c
index a5a38f88..7b7bac88 100644
--- a/tools/mdio/mdio.c
+++ b/tools/mdio/mdio.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * MDIO control tool
  *
diff --git a/tools/ndptool/common.c b/tools/ndptool/common.c
index d30a7ef5..8a6e67da 100644
--- a/tools/ndptool/common.c
+++ b/tools/ndptool/common.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - common code
  *
diff --git a/tools/ndptool/common.h b/tools/ndptool/common.h
index 48c14c7e..d34bc271 100644
--- a/tools/ndptool/common.h
+++ b/tools/ndptool/common.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - common code header
  *
diff --git a/tools/ndptool/generate.c b/tools/ndptool/generate.c
index 9cc591cc..0f44ddb3 100644
--- a/tools/ndptool/generate.c
+++ b/tools/ndptool/generate.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - generate module
  *
diff --git a/tools/ndptool/loopback.c b/tools/ndptool/loopback.c
index 1e815bb1..b6e710eb 100644
--- a/tools/ndptool/loopback.c
+++ b/tools/ndptool/loopback.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - loopback module
  *
diff --git a/tools/ndptool/loopback_hw.c b/tools/ndptool/loopback_hw.c
index b39098fd..fdceafe9 100644
--- a/tools/ndptool/loopback_hw.c
+++ b/tools/ndptool/loopback_hw.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - loopback module
  *
diff --git a/tools/ndptool/main.c b/tools/ndptool/main.c
index 4d8c2714..aa9ad8da 100644
--- a/tools/ndptool/main.c
+++ b/tools/ndptool/main.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool
  *
diff --git a/tools/ndptool/modules.c b/tools/ndptool/modules.c
index e8dfd3df..cf41f597 100644
--- a/tools/ndptool/modules.c
+++ b/tools/ndptool/modules.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - modules
  *
diff --git a/tools/ndptool/pcap.c b/tools/ndptool/pcap.c
index e3c3cb77..783a2e15 100644
--- a/tools/ndptool/pcap.c
+++ b/tools/ndptool/pcap.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - PCAP file handling
  *
diff --git a/tools/ndptool/pcap.h b/tools/ndptool/pcap.h
index d7e00bb2..a04e83da 100644
--- a/tools/ndptool/pcap.h
+++ b/tools/ndptool/pcap.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - PCAP file handling header
  *
diff --git a/tools/ndptool/read.c b/tools/ndptool/read.c
index 49beffd5..e5f5fb6c 100644
--- a/tools/ndptool/read.c
+++ b/tools/ndptool/read.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - read module
  *
diff --git a/tools/ndptool/receive.c b/tools/ndptool/receive.c
index a38811c0..0fc6ee62 100644
--- a/tools/ndptool/receive.c
+++ b/tools/ndptool/receive.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - receive module
  *
diff --git a/tools/ndptool/stats.c b/tools/ndptool/stats.c
index ff39d838..a34bee21 100644
--- a/tools/ndptool/stats.c
+++ b/tools/ndptool/stats.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - statistics
  *
diff --git a/tools/ndptool/structured_packet.h b/tools/ndptool/structured_packet.h
index 6fc51a3c..d47dab34 100644
--- a/tools/ndptool/structured_packet.h
+++ b/tools/ndptool/structured_packet.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - structured packet manipulations
  *
diff --git a/tools/ndptool/transmit.c b/tools/ndptool/transmit.c
index a141dbf7..2425ce44 100644
--- a/tools/ndptool/transmit.c
+++ b/tools/ndptool/transmit.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * Data transmission tool - transmit module
  *
diff --git a/tools/tsu/tsu.c b/tools/tsu/tsu.c
index 08a5cbbe..e35ec1c4 100644
--- a/tools/tsu/tsu.c
+++ b/tools/tsu/tsu.c
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 */
+/* SPDX-License-Identifier: BSD-3-Clause */
 /*
  * TSU time synchronisation tool
  *