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>

59 files changed, 115 insertions, 865 deletions

diff --git a/src/superio/smsc/Makefile.inc b/src/superio/smsc/Makefile.inc
index 9b86745069..af43fefaaa 100644
--- a/src/superio/smsc/Makefile.inc
+++ b/src/superio/smsc/Makefile.inc
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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.
 
 subdirs-y += dme1737
 subdirs-y += fdc37n972
diff --git a/src/superio/smsc/fdc37n972/Kconfig b/src/superio/smsc/fdc37n972/Kconfig
index 4a614f0f40..c93e2d5bc1 100644
--- a/src/superio/smsc/fdc37n972/Kconfig
+++ b/src/superio/smsc/fdc37n972/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_FDC37N972
 	bool
diff --git a/src/superio/smsc/fdc37n972/Makefile.inc b/src/superio/smsc/fdc37n972/Makefile.inc
index 235d7ae0ab..b45496b536 100644
--- a/src/superio/smsc/fdc37n972/Makefile.inc
+++ b/src/superio/smsc/fdc37n972/Makefile.inc
@@ -1,16 +1,4 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 coresystems GmbH
-##
-## 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_SMSC_FDC37N972) += superio.c
diff --git a/src/superio/smsc/fdc37n972/fdc37n972.h b/src/superio/smsc/fdc37n972/fdc37n972.h
index 19225ae92a..eb8a89c380 100644
--- a/src/superio/smsc/fdc37n972/fdc37n972.h
+++ b/src/superio/smsc/fdc37n972/fdc37n972.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008 coresystems GmbH
- *
- * 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. */
 
 #ifndef SUPERIO_SMSC_FDC37N972_H
 #define SUPERIO_SMSC_FDC37N972_H
diff --git a/src/superio/smsc/fdc37n972/superio.c b/src/superio/smsc/fdc37n972/superio.c
index 3706dec762..bf8e35fc8e 100644
--- a/src/superio/smsc/fdc37n972/superio.c
+++ b/src/superio/smsc/fdc37n972/superio.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008 coresystems GmbH
- *
- * 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 <device/device.h>
 #include <device/pnp.h>
diff --git a/src/superio/smsc/kbc1100/Kconfig b/src/superio/smsc/kbc1100/Kconfig
index 8b8d45d4cd..5c5bd6f2ea 100644
--- a/src/superio/smsc/kbc1100/Kconfig
+++ b/src/superio/smsc/kbc1100/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_KBC1100
 	bool
diff --git a/src/superio/smsc/kbc1100/Makefile.inc b/src/superio/smsc/kbc1100/Makefile.inc
index 5da94942a8..f51b3ff236 100644
--- a/src/superio/smsc/kbc1100/Makefile.inc
+++ b/src/superio/smsc/kbc1100/Makefile.inc
@@ -1,17 +1,5 @@
-#
+# SPDX-License-Identifier: GPL-2.0-only
 # 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.
-#
 
 bootblock-$(CONFIG_SUPERIO_SMSC_KBC1100) += early_init.c
 romstage-$(CONFIG_SUPERIO_SMSC_KBC1100) += early_init.c
diff --git a/src/superio/smsc/kbc1100/early_init.c b/src/superio/smsc/kbc1100/early_init.c
index fc3604372e..7d8426ce66 100644
--- a/src/superio/smsc/kbc1100/early_init.c
+++ b/src/superio/smsc/kbc1100/early_init.c
@@ -1,18 +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>
- *
- * 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. */
 
 /* Pre-RAM driver for the SMSC KBC1100 Super I/O chip */
 
diff --git a/src/superio/smsc/kbc1100/kbc1100.h b/src/superio/smsc/kbc1100/kbc1100.h
index 8531643b33..ce560ac44e 100644
--- a/src/superio/smsc/kbc1100/kbc1100.h
+++ b/src/superio/smsc/kbc1100/kbc1100.h
@@ -1,18 +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>
- *
- * 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. */
 
 #ifndef SUPERIO_SMSC_KBC1100_H
 #define SUPERIO_SMSC_KBC1100_H
diff --git a/src/superio/smsc/kbc1100/superio.c b/src/superio/smsc/kbc1100/superio.c
index 9de88e2733..5b1ee544a2 100644
--- a/src/superio/smsc/kbc1100/superio.c
+++ b/src/superio/smsc/kbc1100/superio.c
@@ -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. */
 
 /* RAM driver for the SMSC KBC1100 Super I/O chip */
 
diff --git a/src/superio/smsc/lpc47m10x/Kconfig b/src/superio/smsc/lpc47m10x/Kconfig
index a22965c8f9..a4f90cc18c 100644
--- a/src/superio/smsc/lpc47m10x/Kconfig
+++ b/src/superio/smsc/lpc47m10x/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_LPC47M10X
 	bool
diff --git a/src/superio/smsc/lpc47m10x/Makefile.inc b/src/superio/smsc/lpc47m10x/Makefile.inc
index 278aa1eabb..9dd147fb6a 100644
--- a/src/superio/smsc/lpc47m10x/Makefile.inc
+++ b/src/superio/smsc/lpc47m10x/Makefile.inc
@@ -1,22 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2000 AG Electronics Ltd.
-## Copyright (C) 2003-2004 Linux Networx
-## Copyright (C) 2004 Tyan
-## Copyright (C) 2005 Digital Design Corporation
-## Copyright (C) 2006 Ron Minnich, LANL
-##
-## 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-$(CONFIG_SUPERIO_SMSC_LPC47M10X) += early_serial.c
 romstage-$(CONFIG_SUPERIO_SMSC_LPC47M10X) += early_serial.c
diff --git a/src/superio/smsc/lpc47m10x/early_serial.c b/src/superio/smsc/lpc47m10x/early_serial.c
index 719faf4bc3..892ef3d92c 100644
--- a/src/superio/smsc/lpc47m10x/early_serial.c
+++ b/src/superio/smsc/lpc47m10x/early_serial.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2005 Digital Design Corporation
- *
- * 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/smsc/lpc47m10x/lpc47m10x.h b/src/superio/smsc/lpc47m10x/lpc47m10x.h
index 0c393c5344..d096b37848 100644
--- a/src/superio/smsc/lpc47m10x/lpc47m10x.h
+++ b/src/superio/smsc/lpc47m10x/lpc47m10x.h
@@ -1,20 +1,5 @@
-/*
- * Copyright (C) 2000 AG Electronics Ltd.
- * Copyright (C) 2003-2004 Linux Networx
- * Copyright (C) 2004 Tyan
- * Copyright (C) 2005 Digital Design Corporation
- * Copyright (C) 2006 Ron Minnich, LANL
- *
- * 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_SMSC_LPC47M10X_H
 #define SUPERIO_SMSC_LPC47M10X_H
diff --git a/src/superio/smsc/lpc47m10x/superio.c b/src/superio/smsc/lpc47m10x/superio.c
index a4e3799cd8..2a693d654e 100644
--- a/src/superio/smsc/lpc47m10x/superio.c
+++ b/src/superio/smsc/lpc47m10x/superio.c
@@ -1,22 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2000 AG Electronics Ltd.
- * Copyright (C) 2003-2004 Linux Networx
- * Copyright (C) 2004 Tyan
- * Copyright (C) 2005 Digital Design Corporation
- * Copyright (C) 2006 Ron Minnich, LANL
- *
- * 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/smsc/lpc47m15x/Kconfig b/src/superio/smsc/lpc47m15x/Kconfig
index d11c81a9a3..b716f88df5 100644
--- a/src/superio/smsc/lpc47m15x/Kconfig
+++ b/src/superio/smsc/lpc47m15x/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_LPC47M15X
 	bool
diff --git a/src/superio/smsc/lpc47m15x/Makefile.inc b/src/superio/smsc/lpc47m15x/Makefile.inc
index dc6b9ab3ba..78dbf2c91a 100644
--- a/src/superio/smsc/lpc47m15x/Makefile.inc
+++ b/src/superio/smsc/lpc47m15x/Makefile.inc
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 coresystems GmbH
-##
-## 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.
 
 bootblock-$(CONFIG_SUPERIO_SMSC_LPC47M15X) += early_serial.c
 romstage-$(CONFIG_SUPERIO_SMSC_LPC47M15X) += early_serial.c
diff --git a/src/superio/smsc/lpc47m15x/early_serial.c b/src/superio/smsc/lpc47m15x/early_serial.c
index aab603bc9e..c924a728d0 100644
--- a/src/superio/smsc/lpc47m15x/early_serial.c
+++ b/src/superio/smsc/lpc47m15x/early_serial.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2009 coresystems GmbH
- *
- * 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. */
 
 /* Pre-RAM driver for the SMSC LPC47M15X Super I/O chip */
 
diff --git a/src/superio/smsc/lpc47m15x/lpc47m15x.h b/src/superio/smsc/lpc47m15x/lpc47m15x.h
index e905e9a843..44fce874ba 100644
--- a/src/superio/smsc/lpc47m15x/lpc47m15x.h
+++ b/src/superio/smsc/lpc47m15x/lpc47m15x.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2009 coresystems GmbH
- *
- * 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. */
 
 #ifndef SUPERIO_SMSC_LPC47M15X_H
 #define SUPERIO_SMSC_LPC47M15X_H
diff --git a/src/superio/smsc/lpc47m15x/superio.c b/src/superio/smsc/lpc47m15x/superio.c
index 40eb7d25b1..21b9eb9326 100644
--- a/src/superio/smsc/lpc47m15x/superio.c
+++ b/src/superio/smsc/lpc47m15x/superio.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2009 coresystems GmbH
- *
- * 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. */
 
 /* RAM driver for the SMSC LPC47M15X Super I/O chip */
 
diff --git a/src/superio/smsc/lpc47n207/Kconfig b/src/superio/smsc/lpc47n207/Kconfig
index f5bc5be12c..aa4be5ad9a 100644
--- a/src/superio/smsc/lpc47n207/Kconfig
+++ b/src/superio/smsc/lpc47n207/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_LPC47N207
 	bool
diff --git a/src/superio/smsc/lpc47n207/Makefile.inc b/src/superio/smsc/lpc47n207/Makefile.inc
index 65a0939e9e..698999b2cf 100644
--- a/src/superio/smsc/lpc47n207/Makefile.inc
+++ b/src/superio/smsc/lpc47n207/Makefile.inc
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## 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.
 
 bootblock-$(CONFIG_SUPERIO_SMSC_LPC47N207) += early_serial.c
 romstage-$(CONFIG_SUPERIO_SMSC_LPC47N207) += early_serial.c
diff --git a/src/superio/smsc/lpc47n207/early_serial.c b/src/superio/smsc/lpc47n207/early_serial.c
index 9bda334b84..c091bc461e 100644
--- a/src/superio/smsc/lpc47n207/early_serial.c
+++ b/src/superio/smsc/lpc47n207/early_serial.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.
- *
- * 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 <arch/io.h>
 #include <device/pnp.h>
diff --git a/src/superio/smsc/lpc47n207/lpc47n207.h b/src/superio/smsc/lpc47n207/lpc47n207.h
index f8e06c89c6..fe18e5277f 100644
--- a/src/superio/smsc/lpc47n207/lpc47n207.h
+++ b/src/superio/smsc/lpc47n207/lpc47n207.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.
- *
- * 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. */
 
 #ifndef SUPERIO_SMSC_LPC47N207_H
 #define SUPERIO_SMSC_LPC47N207_H
diff --git a/src/superio/smsc/lpc47n217/Kconfig b/src/superio/smsc/lpc47n217/Kconfig
index b52c360b31..6e8f09e489 100644
--- a/src/superio/smsc/lpc47n217/Kconfig
+++ b/src/superio/smsc/lpc47n217/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_LPC47N217
 	bool
diff --git a/src/superio/smsc/lpc47n217/Makefile.inc b/src/superio/smsc/lpc47n217/Makefile.inc
index a643407fbf..eb3f3228df 100644
--- a/src/superio/smsc/lpc47n217/Makefile.inc
+++ b/src/superio/smsc/lpc47n217/Makefile.inc
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2005 Digital Design Corporation
-##
-## 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-$(CONFIG_SUPERIO_SMSC_LPC47N217) += early_serial.c
 romstage-$(CONFIG_SUPERIO_SMSC_LPC47N217) += early_serial.c
diff --git a/src/superio/smsc/lpc47n217/early_serial.c b/src/superio/smsc/lpc47n217/early_serial.c
index 8037ee890d..84416c5868 100644
--- a/src/superio/smsc/lpc47n217/early_serial.c
+++ b/src/superio/smsc/lpc47n217/early_serial.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2005 Digital Design Corporation
- *
- * 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. */
 
 /* Pre-RAM driver for SMSC LPC47N217 Super I/O chip. */
 
diff --git a/src/superio/smsc/lpc47n217/lpc47n217.h b/src/superio/smsc/lpc47n217/lpc47n217.h
index 13b9bf3697..6e2313b7ca 100644
--- a/src/superio/smsc/lpc47n217/lpc47n217.h
+++ b/src/superio/smsc/lpc47n217/lpc47n217.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2005 Digital Design Corporation
- *
- * 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_SMSC_LPC47N217_LPC47N217_H
 #define SUPERIO_SMSC_LPC47N217_LPC47N217_H
diff --git a/src/superio/smsc/lpc47n217/superio.c b/src/superio/smsc/lpc47n217/superio.c
index 1b34bec27c..f7069445d9 100644
--- a/src/superio/smsc/lpc47n217/superio.c
+++ b/src/superio/smsc/lpc47n217/superio.c
@@ -1,21 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2000 AG Electronics Ltd.
- * Copyright (C) 2003-2004 Linux Networx
- * Copyright (C) 2004 Tyan
- * Copyright (C) 2005 Digital Design Corporation
- *
- * 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. */
 
 /* RAM-based driver for SMSC LPC47N217 Super I/O chip. */
 
diff --git a/src/superio/smsc/lpc47n227/Kconfig b/src/superio/smsc/lpc47n227/Kconfig
index 5c32829303..3c9be6787f 100644
--- a/src/superio/smsc/lpc47n227/Kconfig
+++ b/src/superio/smsc/lpc47n227/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_LPC47N227
 	bool
diff --git a/src/superio/smsc/lpc47n227/Makefile.inc b/src/superio/smsc/lpc47n227/Makefile.inc
index 4bb0dac64a..3e01cb8ed7 100644
--- a/src/superio/smsc/lpc47n227/Makefile.inc
+++ b/src/superio/smsc/lpc47n227/Makefile.inc
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 coresystems GmbH
-##
-## 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.
 
 bootblock-$(CONFIG_SUPERIO_SMSC_LPC47N227) += early_serial.c
 romstage-$(CONFIG_SUPERIO_SMSC_LPC47N227) += early_serial.c
diff --git a/src/superio/smsc/lpc47n227/early_serial.c b/src/superio/smsc/lpc47n227/early_serial.c
index 9e6ecd7d13..091a88f539 100644
--- a/src/superio/smsc/lpc47n227/early_serial.c
+++ b/src/superio/smsc/lpc47n227/early_serial.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2005 Digital Design Corporation
- * Copyright (C) 2008-2009 coresystems GmbH
- *
- * 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. */
 
 /* Pre-RAM driver for SMSC LPC47N227 Super I/O chip. */
 
diff --git a/src/superio/smsc/lpc47n227/lpc47n227.h b/src/superio/smsc/lpc47n227/lpc47n227.h
index 5e30f65f01..60418ef0bf 100644
--- a/src/superio/smsc/lpc47n227/lpc47n227.h
+++ b/src/superio/smsc/lpc47n227/lpc47n227.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008-2009 coresystems GmbH
- *
- * 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. */
 
 #ifndef SUPERIO_SMSC_LPC47N227_LPC47N227_H
 #define SUPERIO_SMSC_LPC47N227_LPC47N227_H
diff --git a/src/superio/smsc/lpc47n227/superio.c b/src/superio/smsc/lpc47n227/superio.c
index 911343d890..923a7665d2 100644
--- a/src/superio/smsc/lpc47n227/superio.c
+++ b/src/superio/smsc/lpc47n227/superio.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2005 Digital Design Corporation
- * Copyright (C) 2008-2009 coresystems GmbH
- *
- * 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. */
 
 /* RAM-based driver for SMSC LPC47N227 Super I/O chip. */
 
diff --git a/src/superio/smsc/mec1308/Kconfig b/src/superio/smsc/mec1308/Kconfig
index dc5061f60d..559be63cbe 100644
--- a/src/superio/smsc/mec1308/Kconfig
+++ b/src/superio/smsc/mec1308/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_MEC1308
 	bool
diff --git a/src/superio/smsc/mec1308/Makefile.inc b/src/superio/smsc/mec1308/Makefile.inc
index 4a60cf66c6..a4f8bed0f6 100644
--- a/src/superio/smsc/mec1308/Makefile.inc
+++ b/src/superio/smsc/mec1308/Makefile.inc
@@ -1,16 +1,4 @@
-#
+# SPDX-License-Identifier: GPL-2.0-only
 # This file is part of the coreboot project.
-#
-# Copyright (C) 2011 Google 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.
-#
 
 ramstage-$(CONFIG_SUPERIO_SMSC_MEC1308) += superio.c
diff --git a/src/superio/smsc/mec1308/acpi/superio.asl b/src/superio/smsc/mec1308/acpi/superio.asl
index cc174f96ae..2d99efe5bd 100644
--- a/src/superio/smsc/mec1308/acpi/superio.asl
+++ b/src/superio/smsc/mec1308/acpi/superio.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
- *
- * 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. */
 
 // Scope is \_SB.PCI0.LPCB
 
diff --git a/src/superio/smsc/mec1308/mec1308.h b/src/superio/smsc/mec1308/mec1308.h
index 77aac842f8..5450c53836 100644
--- a/src/superio/smsc/mec1308/mec1308.h
+++ b/src/superio/smsc/mec1308/mec1308.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
- *
- * 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. */
 
 #ifndef SUPERIO_SMSC_MEC1308_H
 #define SUPERIO_SMSC_MEC1308_H
diff --git a/src/superio/smsc/mec1308/superio.c b/src/superio/smsc/mec1308/superio.c
index 106b8ad500..fa2f851f78 100644
--- a/src/superio/smsc/mec1308/superio.c
+++ b/src/superio/smsc/mec1308/superio.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
- *
- * 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. */
 
 /* RAM driver for the SMSC MEC1308 Super I/O chip */
 
diff --git a/src/superio/smsc/sch5147/acpi/superio.asl b/src/superio/smsc/sch5147/acpi/superio.asl
index 6314d81cd4..15467b4c16 100644
--- a/src/superio/smsc/sch5147/acpi/superio.asl
+++ b/src/superio/smsc/sch5147/acpi/superio.asl
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * 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/smsc/sio1007/Kconfig b/src/superio/smsc/sio1007/Kconfig
index 87aa56d412..74ab4b15bd 100644
--- a/src/superio/smsc/sio1007/Kconfig
+++ b/src/superio/smsc/sio1007/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_SIO1007
 	bool
diff --git a/src/superio/smsc/sio1007/Makefile.inc b/src/superio/smsc/sio1007/Makefile.inc
index 20a0b2a165..0a8a652769 100644
--- a/src/superio/smsc/sio1007/Makefile.inc
+++ b/src/superio/smsc/sio1007/Makefile.inc
@@ -1,17 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2013 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; 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.
 
 bootblock-$(CONFIG_SUPERIO_SMSC_SIO1007) += early_serial.c
 romstage-$(CONFIG_SUPERIO_SMSC_SIO1007) += early_serial.c
diff --git a/src/superio/smsc/sio1007/acpi/superio.asl b/src/superio/smsc/sio1007/acpi/superio.asl
index a8a0564173..c301a79806 100644
--- a/src/superio/smsc/sio1007/acpi/superio.asl
+++ b/src/superio/smsc/sio1007/acpi/superio.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 The ChromiumOS Authors.  All rights reserved.
- *
- * 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. */
 
 // Scope is \_SB.PCI0.LPCB
 
diff --git a/src/superio/smsc/sio1007/early_serial.c b/src/superio/smsc/sio1007/early_serial.c
index 2028e67fc3..bb22604b26 100644
--- a/src/superio/smsc/sio1007/early_serial.c
+++ b/src/superio/smsc/sio1007/early_serial.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2012 The ChromiumOS Authors.  All rights reserved.
- *
- * 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 <stdint.h>
 #include <arch/io.h>
diff --git a/src/superio/smsc/sio1007/sio1007.h b/src/superio/smsc/sio1007/sio1007.h
index a99ec5c273..d69d95c679 100644
--- a/src/superio/smsc/sio1007/sio1007.h
+++ b/src/superio/smsc/sio1007/sio1007.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013 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; 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. */
 
 #ifndef SUPERIO_SMSC_SIO1007_H
 #define SUPERIO_SMSC_SIO1007_H
diff --git a/src/superio/smsc/sio1036/Kconfig b/src/superio/smsc/sio1036/Kconfig
index df519de71b..e9b884f658 100644
--- a/src/superio/smsc/sio1036/Kconfig
+++ b/src/superio/smsc/sio1036/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_SIO1036
 	bool
diff --git a/src/superio/smsc/sio1036/Makefile.inc b/src/superio/smsc/sio1036/Makefile.inc
index e9fdae2dc8..5d85d7caa3 100644
--- a/src/superio/smsc/sio1036/Makefile.inc
+++ b/src/superio/smsc/sio1036/Makefile.inc
@@ -1,17 +1,5 @@
-#
+# SPDX-License-Identifier: GPL-2.0-only
 # This file is part of the coreboot project.
-#
-# Copyright (C) 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; 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.
-#
 
 bootblock-$(CONFIG_SUPERIO_SMSC_SIO1036) += sio1036_early_init.c
 romstage-$(CONFIG_SUPERIO_SMSC_SIO1036) += sio1036_early_init.c
diff --git a/src/superio/smsc/sio1036/sio1036.h b/src/superio/smsc/sio1036/sio1036.h
index 610beba59c..db00181723 100644
--- a/src/superio/smsc/sio1036/sio1036.h
+++ b/src/superio/smsc/sio1036/sio1036.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 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; 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. */
 
 #ifndef SUPERIO_SMSC_SIO1306_H
 #define SUPERIO_SMSC_SIO1306_H
diff --git a/src/superio/smsc/sio1036/sio1036_early_init.c b/src/superio/smsc/sio1036/sio1036_early_init.c
index 26a2a3eb4b..b5e9ae818b 100644
--- a/src/superio/smsc/sio1036/sio1036_early_init.c
+++ b/src/superio/smsc/sio1036/sio1036_early_init.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 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; 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. */
 
 /* Pre-RAM driver for the SMSC KBC1100 Super I/O chip */
 
diff --git a/src/superio/smsc/sio1036/superio.c b/src/superio/smsc/sio1036/superio.c
index c39d0970c6..c249df6c2f 100644
--- a/src/superio/smsc/sio1036/superio.c
+++ b/src/superio/smsc/sio1036/superio.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 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; 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. */
 
 /* RAM driver for the SMSC SIO1036 Super I/O chip */
 
diff --git a/src/superio/smsc/sio10n268/Kconfig b/src/superio/smsc/sio10n268/Kconfig
index c3b282a572..9e3e9a38f8 100644
--- a/src/superio/smsc/sio10n268/Kconfig
+++ b/src/superio/smsc/sio10n268/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_SMSC_SIO10N268
 	bool
diff --git a/src/superio/smsc/sio10n268/Makefile.inc b/src/superio/smsc/sio10n268/Makefile.inc
index 2241db3165..f56608a6cb 100644
--- a/src/superio/smsc/sio10n268/Makefile.inc
+++ b/src/superio/smsc/sio10n268/Makefile.inc
@@ -1,16 +1,4 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 coresystems GmbH
-##
-## 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_SMSC_SIO10N268) += superio.c
diff --git a/src/superio/smsc/sio10n268/sio10n268.h b/src/superio/smsc/sio10n268/sio10n268.h
index afc9f05b9e..0709b92878 100644
--- a/src/superio/smsc/sio10n268/sio10n268.h
+++ b/src/superio/smsc/sio10n268/sio10n268.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008 coresystems GmbH
- *
- * 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. */
 
 #ifndef SUPERIO_SMSC_SIO10N268_SIO10N268_H
 #define SUPERIO_SMSC_SIO10N268_SIO10N268_H
diff --git a/src/superio/smsc/sio10n268/superio.c b/src/superio/smsc/sio10n268/superio.c
index cf432a09b8..8765a6d978 100644
--- a/src/superio/smsc/sio10n268/superio.c
+++ b/src/superio/smsc/sio10n268/superio.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008 coresystems GmbH
- *
- * 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 <device/device.h>
 #include <device/pnp.h>
diff --git a/src/superio/smsc/smscsuperio/Kconfig b/src/superio/smsc/smscsuperio/Kconfig
index 238d4f0cc7..0ae69e170c 100644
--- a/src/superio/smsc/smscsuperio/Kconfig
+++ b/src/superio/smsc/smscsuperio/Kconfig
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2009 Ronald G. Minnich
-## Copyright (C) 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; 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_WANTS_14MHZ_CLOCK
 	bool
diff --git a/src/superio/smsc/smscsuperio/Makefile.inc b/src/superio/smsc/smscsuperio/Makefile.inc
index b9bf35ce80..bc87f2a097 100644
--- a/src/superio/smsc/smscsuperio/Makefile.inc
+++ b/src/superio/smsc/smscsuperio/Makefile.inc
@@ -1,18 +1,5 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.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.
 
 bootblock-$(CONFIG_SUPERIO_SMSC_SMSCSUPERIO) += early_serial.c
 romstage-$(CONFIG_SUPERIO_SMSC_SMSCSUPERIO) += early_serial.c
diff --git a/src/superio/smsc/smscsuperio/early_serial.c b/src/superio/smsc/smscsuperio/early_serial.c
index f058564ee6..38027d522e 100644
--- a/src/superio/smsc/smscsuperio/early_serial.c
+++ b/src/superio/smsc/smscsuperio/early_serial.c
@@ -1,19 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.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 <arch/io.h>
 #include <device/pnp_ops.h>
diff --git a/src/superio/smsc/smscsuperio/smscsuperio.h b/src/superio/smsc/smscsuperio/smscsuperio.h
index c42328c09b..69d5a3fd49 100644
--- a/src/superio/smsc/smscsuperio/smscsuperio.h
+++ b/src/superio/smsc/smscsuperio/smscsuperio.h
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * 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. */
 
 #ifndef SUPERIO_SMSC_SMSCSUPERIO_H
 #define SUPERIO_SMSC_SMSCSUPERIO_H
diff --git a/src/superio/smsc/smscsuperio/superio.c b/src/superio/smsc/smscsuperio/superio.c
index 0e86683da3..6a51ab6fbb 100644
--- a/src/superio/smsc/smscsuperio/superio.c
+++ b/src/superio/smsc/smscsuperio/superio.c
@@ -1,18 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.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. */
 
 /*
  * Generic driver for pretty much all known Standard Microsystems Corporation