src/superio: replace license boilerplate with SPDX

The authors from the header of the files are added in a previous commit.

Change-Id: Iafeaafb9689c65bd2f5de3960097ec0d4c1009e7
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38544
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

44 files changed, 88 insertions, 679 deletions

diff --git a/src/superio/nuvoton/Makefile.inc b/src/superio/nuvoton/Makefile.inc
index d92b453753..55fed51b19 100644
--- a/src/superio/nuvoton/Makefile.inc
+++ b/src/superio/nuvoton/Makefile.inc
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 Advanced Micro Devices, Inc.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 ## include generic nuvoton pre-ram stage driver
 bootblock-$(CONFIG_SUPERIO_NUVOTON_COMMON_PRE_RAM) += common/early_serial.c
diff --git a/src/superio/nuvoton/common/Kconfig b/src/superio/nuvoton/common/Kconfig
index 0af556caab..35052e9061 100644
--- a/src/superio/nuvoton/common/Kconfig
+++ b/src/superio/nuvoton/common/Kconfig
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 Advanced Micro Devices, Inc.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 # Generic Nuvoton romstage driver - Just enough UART initialisation code for
 # pre-ram.
diff --git a/src/superio/nuvoton/common/early_serial.c b/src/superio/nuvoton/common/early_serial.c
index 29418dbf9e..ed31b721fb 100644
--- a/src/superio/nuvoton/common/early_serial.c
+++ b/src/superio/nuvoton/common/early_serial.c
@@ -1,20 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 /*
  * A generic romstage (pre-ram) driver for Nuvoton variant Super I/O chips.
diff --git a/src/superio/nuvoton/common/hwm.c b/src/superio/nuvoton/common/hwm.c
index bfc916fedc..d6c15af7ed 100644
--- a/src/superio/nuvoton/common/hwm.c
+++ b/src/superio/nuvoton/common/hwm.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2019 Felix Held <felix-coreboot@felixheld.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 /* Nuvoton is a Winbond spin-off, so this code is for both */
 
diff --git a/src/superio/nuvoton/common/hwm.h b/src/superio/nuvoton/common/hwm.h
index 15dcf62448..be47a77727 100644
--- a/src/superio/nuvoton/common/hwm.h
+++ b/src/superio/nuvoton/common/hwm.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2019 Felix Held <felix-coreboot@felixheld.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_COMMON_HWM_H
 #define SUPERIO_NUVOTON_COMMON_HWM_H
diff --git a/src/superio/nuvoton/common/nuvoton.h b/src/superio/nuvoton/common/nuvoton.h
index 688364a0d2..f5b317671d 100644
--- a/src/superio/nuvoton/common/nuvoton.h
+++ b/src/superio/nuvoton/common/nuvoton.h
@@ -1,19 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_COMMON_PRE_RAM_H
 #define SUPERIO_NUVOTON_COMMON_PRE_RAM_H
diff --git a/src/superio/nuvoton/nct5104d/Kconfig b/src/superio/nuvoton/nct5104d/Kconfig
index 12ef644f7b..72978c54be 100644
--- a/src/superio/nuvoton/nct5104d/Kconfig
+++ b/src/superio/nuvoton/nct5104d/Kconfig
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 Advanced Micro Devices, Inc.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 config SUPERIO_NUVOTON_NCT5104D
 	bool
diff --git a/src/superio/nuvoton/nct5104d/Makefile.inc b/src/superio/nuvoton/nct5104d/Makefile.inc
index 1c67660736..0a84d4fed4 100644
--- a/src/superio/nuvoton/nct5104d/Makefile.inc
+++ b/src/superio/nuvoton/nct5104d/Makefile.inc
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 - 2012 Advanced Micro Devices, Inc.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-or-later
+# This file is part of the coreboot project.
 
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT5104D) += superio.c
 bootblock-$(CONFIG_SUPERIO_NUVOTON_NCT5104D) += early_init.c
diff --git a/src/superio/nuvoton/nct5104d/chip.h b/src/superio/nuvoton/nct5104d/chip.h
index d351053cd5..5b790372ad 100644
--- a/src/superio/nuvoton/nct5104d/chip.h
+++ b/src/superio/nuvoton/nct5104d/chip.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Sage Electronic Engineering, LLC
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_NCT5104D_CHIP_H
 #define SUPERIO_NUVOTON_NCT5104D_CHIP_H
diff --git a/src/superio/nuvoton/nct5104d/early_init.c b/src/superio/nuvoton/nct5104d/early_init.c
index 3559aba460..60250553a4 100644
--- a/src/superio/nuvoton/nct5104d/early_init.c
+++ b/src/superio/nuvoton/nct5104d/early_init.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Sage Electronic Engineering, LLC
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <arch/io.h>
 #include <device/pnp_type.h>
diff --git a/src/superio/nuvoton/nct5104d/nct5104d.h b/src/superio/nuvoton/nct5104d/nct5104d.h
index 3f78c1d0d4..b65e805ddf 100644
--- a/src/superio/nuvoton/nct5104d/nct5104d.h
+++ b/src/superio/nuvoton/nct5104d/nct5104d.h
@@ -1,19 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- * Copyright (C) 2014 Sage Electronic Engineering, LLC
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_NCT5104D_H
 #define SUPERIO_NUVOTON_NCT5104D_H
diff --git a/src/superio/nuvoton/nct5104d/superio.c b/src/superio/nuvoton/nct5104d/superio.c
index 6836d695c0..e49a7cbda5 100644
--- a/src/superio/nuvoton/nct5104d/superio.c
+++ b/src/superio/nuvoton/nct5104d/superio.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/pnp.h>
diff --git a/src/superio/nuvoton/nct5539d/Kconfig b/src/superio/nuvoton/nct5539d/Kconfig
index 0dd14022b6..cf2d950ee7 100644
--- a/src/superio/nuvoton/nct5539d/Kconfig
+++ b/src/superio/nuvoton/nct5539d/Kconfig
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2019 Pavel Sayekat <pavelsayekat@gmail.com>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 config SUPERIO_NUVOTON_NCT5539D
 	bool
diff --git a/src/superio/nuvoton/nct5539d/Makefile.inc b/src/superio/nuvoton/nct5539d/Makefile.inc
index a6f3a022fe..832c81f7cb 100644
--- a/src/superio/nuvoton/nct5539d/Makefile.inc
+++ b/src/superio/nuvoton/nct5539d/Makefile.inc
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2019 Pavel Sayekat <pavelsayekat@gmail.com>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT5539D) += superio.c
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT5539D) += ../../common/ssdt.c
diff --git a/src/superio/nuvoton/nct5539d/acpi/superio.asl b/src/superio/nuvoton/nct5539d/acpi/superio.asl
index ce43a77c54..70a84a28a7 100644
--- a/src/superio/nuvoton/nct5539d/acpi/superio.asl
+++ b/src/superio/nuvoton/nct5539d/acpi/superio.asl
@@ -1,20 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Christoph Grenz <christophg+cb@grenz-bonn.de>
- * Copyright (C) 2013, 2016 secunet Security Networks AG
- * Copyright (C) 2017 Tobias Diedrich <ranma+coreboot@tdiedrich.de>
- * Copyright (C) 2019 Pavel Sayekat <pavelsayekat@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 /*
  * Include this file into a mainboard's DSDT _SB device tree and it will
diff --git a/src/superio/nuvoton/nct5539d/nct5539d.h b/src/superio/nuvoton/nct5539d/nct5539d.h
index d4e8d083a9..9d290d3550 100644
--- a/src/superio/nuvoton/nct5539d/nct5539d.h
+++ b/src/superio/nuvoton/nct5539d/nct5539d.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2019 Pavel Sayekat <pavelsayekat@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_NCT5539D_H
 #define SUPERIO_NUVOTON_NCT5539D_H
diff --git a/src/superio/nuvoton/nct5539d/superio.c b/src/superio/nuvoton/nct5539d/superio.c
index 04461b3abe..5402b2e0fd 100644
--- a/src/superio/nuvoton/nct5539d/superio.c
+++ b/src/superio/nuvoton/nct5539d/superio.c
@@ -1,23 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
- * Copyright (C) 2015 Matt DeVillier <matt.devillier@gmail.com>
- * Copyright (C) 2016 Omar Pakker <omarpakker+coreboot@gmail.com>
-*  Copyright (C) 2019 Pavel Sayekat <pavelsayekat@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <device/device.h>
 #include <device/pnp.h>
diff --git a/src/superio/nuvoton/nct5572d/Kconfig b/src/superio/nuvoton/nct5572d/Kconfig
index 60c886624e..f720f79c3a 100644
--- a/src/superio/nuvoton/nct5572d/Kconfig
+++ b/src/superio/nuvoton/nct5572d/Kconfig
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 Advanced Micro Devices, Inc.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 config SUPERIO_NUVOTON_NCT5572D
 	bool
diff --git a/src/superio/nuvoton/nct5572d/Makefile.inc b/src/superio/nuvoton/nct5572d/Makefile.inc
index b4916f864b..77a9c7f0a5 100644
--- a/src/superio/nuvoton/nct5572d/Makefile.inc
+++ b/src/superio/nuvoton/nct5572d/Makefile.inc
@@ -1,18 +1,4 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 - 2012 Advanced Micro Devices, Inc.
-## Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-or-later
+# This file is part of the coreboot project.
 
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT5572D) += superio.c
diff --git a/src/superio/nuvoton/nct5572d/nct5572d.h b/src/superio/nuvoton/nct5572d/nct5572d.h
index e04abf3cbc..1096b940af 100644
--- a/src/superio/nuvoton/nct5572d/nct5572d.h
+++ b/src/superio/nuvoton/nct5572d/nct5572d.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_NCT5572D
 #define SUPERIO_NUVOTON_NCT5572D
diff --git a/src/superio/nuvoton/nct5572d/superio.c b/src/superio/nuvoton/nct5572d/superio.c
index 163d6b92d7..fe1da65db2 100644
--- a/src/superio/nuvoton/nct5572d/superio.c
+++ b/src/superio/nuvoton/nct5572d/superio.c
@@ -1,20 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
- * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/superio/nuvoton/nct6776/Kconfig b/src/superio/nuvoton/nct6776/Kconfig
index 441692bddd..a0a8184315 100644
--- a/src/superio/nuvoton/nct6776/Kconfig
+++ b/src/superio/nuvoton/nct6776/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 - 2012 Advanced Micro Devices, Inc.
-## Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 config SUPERIO_NUVOTON_NCT6776
 	bool
diff --git a/src/superio/nuvoton/nct6776/Makefile.inc b/src/superio/nuvoton/nct6776/Makefile.inc
index 13fe527dd5..bf229c2c13 100644
--- a/src/superio/nuvoton/nct6776/Makefile.inc
+++ b/src/superio/nuvoton/nct6776/Makefile.inc
@@ -1,18 +1,4 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 - 2012 Advanced Micro Devices, Inc.
-## Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-or-later
+# This file is part of the coreboot project.
 
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT6776) += superio.c
diff --git a/src/superio/nuvoton/nct6776/acpi/superio.asl b/src/superio/nuvoton/nct6776/acpi/superio.asl
index f6aed57dba..748693d771 100644
--- a/src/superio/nuvoton/nct6776/acpi/superio.asl
+++ b/src/superio/nuvoton/nct6776/acpi/superio.asl
@@ -1,19 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Christoph Grenz <christophg+cb@grenz-bonn.de>
- * Copyright (C) 2013, 2016 secunet Security Networks AG
- * Copyright (C) 2017 Tobias Diedrich <ranma+coreboot@tdiedrich.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /*
  * Include this file into a mainboard's DSDT _SB device tree and it will
diff --git a/src/superio/nuvoton/nct6776/nct6776.h b/src/superio/nuvoton/nct6776/nct6776.h
index 520401e5a0..eb4da5eec4 100644
--- a/src/superio/nuvoton/nct6776/nct6776.h
+++ b/src/superio/nuvoton/nct6776/nct6776.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 /* Both NCT6776D and NCT6776F package variants are supported. */
 
diff --git a/src/superio/nuvoton/nct6776/superio.c b/src/superio/nuvoton/nct6776/superio.c
index 78e07b66d6..2050bd9092 100644
--- a/src/superio/nuvoton/nct6776/superio.c
+++ b/src/superio/nuvoton/nct6776/superio.c
@@ -1,20 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <device/device.h>
 #include <device/pnp.h>
diff --git a/src/superio/nuvoton/nct6779d/Kconfig b/src/superio/nuvoton/nct6779d/Kconfig
index aad9eb4d2a..5217102645 100644
--- a/src/superio/nuvoton/nct6779d/Kconfig
+++ b/src/superio/nuvoton/nct6779d/Kconfig
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 Advanced Micro Devices, Inc.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 config SUPERIO_NUVOTON_NCT6779D
 	bool
diff --git a/src/superio/nuvoton/nct6779d/Makefile.inc b/src/superio/nuvoton/nct6779d/Makefile.inc
index b1ce17a8e1..4058d09580 100644
--- a/src/superio/nuvoton/nct6779d/Makefile.inc
+++ b/src/superio/nuvoton/nct6779d/Makefile.inc
@@ -1,17 +1,4 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2015 Matt DeVillier <matt.devillier@gmail.com>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-or-later
+# This file is part of the coreboot project.
 
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT6779D) += superio.c
diff --git a/src/superio/nuvoton/nct6779d/nct6779d.h b/src/superio/nuvoton/nct6779d/nct6779d.h
index 9a1c445e4a..86f1a76582 100644
--- a/src/superio/nuvoton/nct6779d/nct6779d.h
+++ b/src/superio/nuvoton/nct6779d/nct6779d.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2015 Matt DeVillier <matt.devillier@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_NCT6779D_H
 #define SUPERIO_NUVOTON_NCT6779D_H
diff --git a/src/superio/nuvoton/nct6779d/superio.c b/src/superio/nuvoton/nct6779d/superio.c
index 7ef3488b8c..9eff320477 100644
--- a/src/superio/nuvoton/nct6779d/superio.c
+++ b/src/superio/nuvoton/nct6779d/superio.c
@@ -1,21 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
- * Copyright (C) 2015 Matt DeVillier <matt.devillier@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <device/device.h>
 #include <device/pnp.h>
diff --git a/src/superio/nuvoton/nct6791d/Kconfig b/src/superio/nuvoton/nct6791d/Kconfig
index 55581fbcfe..5d8bcad871 100644
--- a/src/superio/nuvoton/nct6791d/Kconfig
+++ b/src/superio/nuvoton/nct6791d/Kconfig
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2016 Omar Pakker <omarpakker+coreboot@gmail.com>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 config SUPERIO_NUVOTON_NCT6791D
 	bool
diff --git a/src/superio/nuvoton/nct6791d/Makefile.inc b/src/superio/nuvoton/nct6791d/Makefile.inc
index a1299a4830..f7353652c6 100644
--- a/src/superio/nuvoton/nct6791d/Makefile.inc
+++ b/src/superio/nuvoton/nct6791d/Makefile.inc
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2016 Omar Pakker <omarpakker+coreboot@gmail.com>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT6791D) += superio.c
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NCT6791D) += ../../common/ssdt.c
diff --git a/src/superio/nuvoton/nct6791d/nct6791d.h b/src/superio/nuvoton/nct6791d/nct6791d.h
index 69855acc2b..aa47bd4815 100644
--- a/src/superio/nuvoton/nct6791d/nct6791d.h
+++ b/src/superio/nuvoton/nct6791d/nct6791d.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2016 Omar Pakker <omarpakker+coreboot@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_NCT6791D_H
 #define SUPERIO_NUVOTON_NCT6791D_H
diff --git a/src/superio/nuvoton/nct6791d/superio.c b/src/superio/nuvoton/nct6791d/superio.c
index ed8f5c3659..a8e267b912 100644
--- a/src/superio/nuvoton/nct6791d/superio.c
+++ b/src/superio/nuvoton/nct6791d/superio.c
@@ -1,22 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
- * Copyright (C) 2015 Matt DeVillier <matt.devillier@gmail.com>
- * Copyright (C) 2016 Omar Pakker <omarpakker+coreboot@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <device/device.h>
 #include <device/pnp.h>
diff --git a/src/superio/nuvoton/npcd378/Kconfig b/src/superio/nuvoton/npcd378/Kconfig
index d72c751d61..f3eb932aa7 100644
--- a/src/superio/nuvoton/npcd378/Kconfig
+++ b/src/superio/nuvoton/npcd378/Kconfig
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2018 Patrick Rudolph <siro@das-labor.org>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 config SUPERIO_NUVOTON_NPCD378
 	bool
diff --git a/src/superio/nuvoton/npcd378/Makefile.inc b/src/superio/nuvoton/npcd378/Makefile.inc
index ca0c824cdd..6dc762605a 100644
--- a/src/superio/nuvoton/npcd378/Makefile.inc
+++ b/src/superio/nuvoton/npcd378/Makefile.inc
@@ -1,17 +1,4 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2018 Patrick Rudolph <siro@das-labor.org>
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-or-later
+# This file is part of the coreboot project.
 
 ramstage-$(CONFIG_SUPERIO_NUVOTON_NPCD378) += superio.c
diff --git a/src/superio/nuvoton/npcd378/acpi/superio.asl b/src/superio/nuvoton/npcd378/acpi/superio.asl
index 231488053c..41efb50b67 100644
--- a/src/superio/nuvoton/npcd378/acpi/superio.asl
+++ b/src/superio/nuvoton/npcd378/acpi/superio.asl
@@ -1,20 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Christoph Grenz <christophg+cb@grenz-bonn.de>
- * Copyright (C) 2013, 2016 secunet Security Networks AG
- * Copyright (C) 2017 Tobias Diedrich <ranma+coreboot@tdiedrich.de>
- * Copyright (C) 2018 Patrick Rudolph <siro@das-labor.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /*
  * Include this file into a mainboard's DSDT _SB device tree and it will
diff --git a/src/superio/nuvoton/npcd378/npcd378.h b/src/superio/nuvoton/npcd378/npcd378.h
index cf0b804753..f2fd87b27e 100644
--- a/src/superio/nuvoton/npcd378/npcd378.h
+++ b/src/superio/nuvoton/npcd378/npcd378.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 Patrick Rudolph <siro@das-labor.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_NPCD378_H
 #define SUPERIO_NUVOTON_NPCD378_H
diff --git a/src/superio/nuvoton/npcd378/superio.c b/src/superio/nuvoton/npcd378/superio.c
index f11e75a550..624c1f0882 100644
--- a/src/superio/nuvoton/npcd378/superio.c
+++ b/src/superio/nuvoton/npcd378/superio.c
@@ -1,21 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- * Copyright (C) 2014 Felix Held <felix-coreboot@felixheld.de>
- * Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
- * Copyright (C) 2018 Patrick Rudolph <siro@das-labor.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <arch/io.h>
 #include <console/console.h>
diff --git a/src/superio/nuvoton/wpcm450/Kconfig b/src/superio/nuvoton/wpcm450/Kconfig
index e94b4354e0..19f11a6d6d 100644
--- a/src/superio/nuvoton/wpcm450/Kconfig
+++ b/src/superio/nuvoton/wpcm450/Kconfig
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 Advanced Micro Devices, Inc.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-only
+# This file is part of the coreboot project.
 
 config SUPERIO_NUVOTON_WPCM450
 	bool
diff --git a/src/superio/nuvoton/wpcm450/Makefile.inc b/src/superio/nuvoton/wpcm450/Makefile.inc
index 27dc253e80..04a0f07954 100644
--- a/src/superio/nuvoton/wpcm450/Makefile.inc
+++ b/src/superio/nuvoton/wpcm450/Makefile.inc
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2011 - 2012 Advanced Micro Devices, Inc.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; either version 2 of the License, or
-## (at your option) any later version.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+# SPDX-License-Identifier: GPL-2.0-or-later
+# This file is part of the coreboot project.
 
 bootblock-$(CONFIG_SUPERIO_NUVOTON_WPCM450) += early_init.c
 romstage-$(CONFIG_SUPERIO_NUVOTON_WPCM450) += early_init.c
diff --git a/src/superio/nuvoton/wpcm450/early_init.c b/src/superio/nuvoton/wpcm450/early_init.c
index 0ed5ac338b..56f5b5e9e6 100644
--- a/src/superio/nuvoton/wpcm450/early_init.c
+++ b/src/superio/nuvoton/wpcm450/early_init.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <arch/io.h>
 #include <device/pnp_ops.h>
diff --git a/src/superio/nuvoton/wpcm450/superio.c b/src/superio/nuvoton/wpcm450/superio.c
index aeb394acca..7bb8eb9375 100644
--- a/src/superio/nuvoton/wpcm450/superio.c
+++ b/src/superio/nuvoton/wpcm450/superio.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <device/device.h>
 #include <device/pnp.h>
diff --git a/src/superio/nuvoton/wpcm450/wpcm450.h b/src/superio/nuvoton/wpcm450/wpcm450.h
index 6efdb2a9e9..d0d96ad711 100644
--- a/src/superio/nuvoton/wpcm450/wpcm450.h
+++ b/src/superio/nuvoton/wpcm450/wpcm450.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #ifndef SUPERIO_NUVOTON_WPCM450_WPCM450_H
 #define SUPERIO_NUVOTON_WPCM450_WPCM450_H