mb/google/slippy: Use SPDX for GPL-2.0-only files

Done with sed and God Lines. Only done for C-like code for now.

Change-Id: I74fd273aff05e6635d4964f3614c2f1dd5562b4b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40194
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

34 files changed, 68 insertions, 444 deletions

diff --git a/src/mainboard/google/slippy/acpi/ec.asl b/src/mainboard/google/slippy/acpi/ec.asl
index 964ed765bf..d8b3b495a7 100644
--- a/src/mainboard/google/slippy/acpi/ec.asl
+++ b/src/mainboard/google/slippy/acpi/ec.asl
@@ -1,16 +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. */
 
 /* mainboard configuration */
 #include "../ec.h"
diff --git a/src/mainboard/google/slippy/acpi/mainboard.asl b/src/mainboard/google/slippy/acpi/mainboard.asl
index e9ade244cf..b2a869a4cb 100644
--- a/src/mainboard/google/slippy/acpi/mainboard.asl
+++ b/src/mainboard/google/slippy/acpi/mainboard.asl
@@ -1,16 +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 <onboard.h>
 
diff --git a/src/mainboard/google/slippy/acpi/platform.asl b/src/mainboard/google/slippy/acpi/platform.asl
index ddeea8a95d..69b3ded99e 100644
--- a/src/mainboard/google/slippy/acpi/platform.asl
+++ b/src/mainboard/google/slippy/acpi/platform.asl
@@ -1,16 +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 <southbridge/intel/common/acpi/platform.asl>
 
diff --git a/src/mainboard/google/slippy/acpi/superio.asl b/src/mainboard/google/slippy/acpi/superio.asl
index 02c320af60..d5cee3781e 100644
--- a/src/mainboard/google/slippy/acpi/superio.asl
+++ b/src/mainboard/google/slippy/acpi/superio.asl
@@ -1,16 +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. */
 
 /* mainboard configuration */
 #include "../ec.h"
diff --git a/src/mainboard/google/slippy/acpi/thermal.asl b/src/mainboard/google/slippy/acpi/thermal.asl
index 3ea7aa2f37..b8c2f481e6 100644
--- a/src/mainboard/google/slippy/acpi/thermal.asl
+++ b/src/mainboard/google/slippy/acpi/thermal.asl
@@ -1,16 +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. */
 
 // Thermal Zone
 
diff --git a/src/mainboard/google/slippy/acpi_tables.c b/src/mainboard/google/slippy/acpi_tables.c
index ae79d94bad..9666f296f4 100644
--- a/src/mainboard/google/slippy/acpi_tables.c
+++ b/src/mainboard/google/slippy/acpi_tables.c
@@ -1,16 +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 <types.h>
 #include <arch/acpi.h>
diff --git a/src/mainboard/google/slippy/chromeos.c b/src/mainboard/google/slippy/chromeos.c
index a92572f4aa..643352d70d 100644
--- a/src/mainboard/google/slippy/chromeos.c
+++ b/src/mainboard/google/slippy/chromeos.c
@@ -1,16 +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 <bootmode.h>
 #include <boot/coreboot_tables.h>
diff --git a/src/mainboard/google/slippy/dsdt.asl b/src/mainboard/google/slippy/dsdt.asl
index 373e31a9b9..767401d7ce 100644
--- a/src/mainboard/google/slippy/dsdt.asl
+++ b/src/mainboard/google/slippy/dsdt.asl
@@ -1,16 +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 <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/google/slippy/ec.c b/src/mainboard/google/slippy/ec.c
index 417dd79f17..484b4acbba 100644
--- a/src/mainboard/google/slippy/ec.c
+++ b/src/mainboard/google/slippy/ec.c
@@ -1,16 +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 <arch/acpi.h>
 #include <types.h>
diff --git a/src/mainboard/google/slippy/ec.h b/src/mainboard/google/slippy/ec.h
index 8653c8ad82..f8745fcf21 100644
--- a/src/mainboard/google/slippy/ec.h
+++ b/src/mainboard/google/slippy/ec.h
@@ -1,16 +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. */
 
 #ifndef MAINBOARD_EC_H
 #define MAINBOARD_EC_H
diff --git a/src/mainboard/google/slippy/mainboard.c b/src/mainboard/google/slippy/mainboard.c
index 2a2b13b0b0..eea029c7fe 100644
--- a/src/mainboard/google/slippy/mainboard.c
+++ b/src/mainboard/google/slippy/mainboard.c
@@ -1,16 +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 <types.h>
 #include <smbios.h>
diff --git a/src/mainboard/google/slippy/onboard.h b/src/mainboard/google/slippy/onboard.h
index 5ad47e2835..eff8299bd6 100644
--- a/src/mainboard/google/slippy/onboard.h
+++ b/src/mainboard/google/slippy/onboard.h
@@ -1,16 +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. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/slippy/romstage.c b/src/mainboard/google/slippy/romstage.c
index 7a9715443f..6715ff6942 100644
--- a/src/mainboard/google/slippy/romstage.c
+++ b/src/mainboard/google/slippy/romstage.c
@@ -1,16 +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 <arch/romstage.h>
 #include "variant.h"
diff --git a/src/mainboard/google/slippy/smihandler.c b/src/mainboard/google/slippy/smihandler.c
index 41e9d5a2ab..d2d81f8de4 100644
--- a/src/mainboard/google/slippy/smihandler.c
+++ b/src/mainboard/google/slippy/smihandler.c
@@ -1,16 +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 <arch/acpi.h>
 #include <arch/io.h>
diff --git a/src/mainboard/google/slippy/thermal.h b/src/mainboard/google/slippy/thermal.h
index c01481ab0f..47c1697829 100644
--- a/src/mainboard/google/slippy/thermal.h
+++ b/src/mainboard/google/slippy/thermal.h
@@ -1,16 +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. */
 
 #ifndef THERMAL_H
 #define THERMAL_H
diff --git a/src/mainboard/google/slippy/variant.h b/src/mainboard/google/slippy/variant.h
index ab5dc414ea..084431bea8 100644
--- a/src/mainboard/google/slippy/variant.h
+++ b/src/mainboard/google/slippy/variant.h
@@ -1,16 +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. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/slippy/variants/falco/hda_verb.c b/src/mainboard/google/slippy/variants/falco/hda_verb.c
index 30a419e9db..4c57484f40 100644
--- a/src/mainboard/google/slippy/variants/falco/hda_verb.c
+++ b/src/mainboard/google/slippy/variants/falco/hda_verb.c
@@ -1,16 +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 <device/azalia_device.h>
 
diff --git a/src/mainboard/google/slippy/variants/falco/include/variant/acpi/mainboard.asl b/src/mainboard/google/slippy/variants/falco/include/variant/acpi/mainboard.asl
index b8f5f14723..c2d4fc3f6a 100644
--- a/src/mainboard/google/slippy/variants/falco/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/slippy/variants/falco/include/variant/acpi/mainboard.asl
@@ -1,17 +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. */
 
 Scope (\_SB.PCI0.I2C0)
 {
diff --git a/src/mainboard/google/slippy/variants/falco/include/variant/gpio.h b/src/mainboard/google/slippy/variants/falco/include/variant/gpio.h
index 6419e32b9b..fbc3faae64 100644
--- a/src/mainboard/google/slippy/variants/falco/include/variant/gpio.h
+++ b/src/mainboard/google/slippy/variants/falco/include/variant/gpio.h
@@ -1,16 +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. */
 
 #ifndef FALCO_GPIO_H
 #define FALCO_GPIO_H
diff --git a/src/mainboard/google/slippy/variants/falco/romstage.c b/src/mainboard/google/slippy/variants/falco/romstage.c
index ee78a705e9..1eb48bfd96 100644
--- a/src/mainboard/google/slippy/variants/falco/romstage.c
+++ b/src/mainboard/google/slippy/variants/falco/romstage.c
@@ -1,16 +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 <stddef.h>
 #include <stdint.h>
diff --git a/src/mainboard/google/slippy/variants/leon/hda_verb.c b/src/mainboard/google/slippy/variants/leon/hda_verb.c
index 4fe9278639..c5664968ad 100644
--- a/src/mainboard/google/slippy/variants/leon/hda_verb.c
+++ b/src/mainboard/google/slippy/variants/leon/hda_verb.c
@@ -1,16 +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 <device/azalia_device.h>
 
diff --git a/src/mainboard/google/slippy/variants/leon/include/variant/acpi/mainboard.asl b/src/mainboard/google/slippy/variants/leon/include/variant/acpi/mainboard.asl
index 9ac43e8a1e..2254f8ed46 100644
--- a/src/mainboard/google/slippy/variants/leon/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/slippy/variants/leon/include/variant/acpi/mainboard.asl
@@ -1,17 +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. */
 
 Scope (\_SB.PCI0.I2C0)
 {
diff --git a/src/mainboard/google/slippy/variants/leon/include/variant/gpio.h b/src/mainboard/google/slippy/variants/leon/include/variant/gpio.h
index 798890ac2a..4adfd3e3a7 100644
--- a/src/mainboard/google/slippy/variants/leon/include/variant/gpio.h
+++ b/src/mainboard/google/slippy/variants/leon/include/variant/gpio.h
@@ -1,16 +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. */
 
 #ifndef LEON_GPIO_H
 #define LEON_GPIO_H
diff --git a/src/mainboard/google/slippy/variants/leon/romstage.c b/src/mainboard/google/slippy/variants/leon/romstage.c
index edf974826f..397c0edebb 100644
--- a/src/mainboard/google/slippy/variants/leon/romstage.c
+++ b/src/mainboard/google/slippy/variants/leon/romstage.c
@@ -1,16 +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 <stdint.h>
 #include <string.h>
diff --git a/src/mainboard/google/slippy/variants/peppy/hda_verb.c b/src/mainboard/google/slippy/variants/peppy/hda_verb.c
index 267e3e9087..7237c09d53 100644
--- a/src/mainboard/google/slippy/variants/peppy/hda_verb.c
+++ b/src/mainboard/google/slippy/variants/peppy/hda_verb.c
@@ -1,16 +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 <device/azalia_device.h>
 
diff --git a/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl b/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl
index 536a7a4969..c9be862773 100644
--- a/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/mainboard.asl
@@ -1,17 +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. */
 
 Scope (\_SB.PCI0.I2C0)
 {
diff --git a/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/usb.asl b/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/usb.asl
index 9227680d53..3538c719ee 100644
--- a/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/usb.asl
+++ b/src/mainboard/google/slippy/variants/peppy/include/variant/acpi/usb.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. */
 
 Scope (\_SB.PCI0.XHCI.HUB7.PRT1)
 {
diff --git a/src/mainboard/google/slippy/variants/peppy/include/variant/gpio.h b/src/mainboard/google/slippy/variants/peppy/include/variant/gpio.h
index 0da2652446..8697d2ea04 100644
--- a/src/mainboard/google/slippy/variants/peppy/include/variant/gpio.h
+++ b/src/mainboard/google/slippy/variants/peppy/include/variant/gpio.h
@@ -1,16 +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. */
 
 #ifndef PEPPY_GPIO_H
 #define PEPPY_GPIO_H
diff --git a/src/mainboard/google/slippy/variants/peppy/romstage.c b/src/mainboard/google/slippy/variants/peppy/romstage.c
index a9e1812829..d2a92a8789 100644
--- a/src/mainboard/google/slippy/variants/peppy/romstage.c
+++ b/src/mainboard/google/slippy/variants/peppy/romstage.c
@@ -1,16 +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 <stdint.h>
 #include <string.h>
diff --git a/src/mainboard/google/slippy/variants/wolf/hda_verb.c b/src/mainboard/google/slippy/variants/wolf/hda_verb.c
index 63cb8fa171..350ce8ddf3 100644
--- a/src/mainboard/google/slippy/variants/wolf/hda_verb.c
+++ b/src/mainboard/google/slippy/variants/wolf/hda_verb.c
@@ -1,16 +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 <device/azalia_device.h>
 
diff --git a/src/mainboard/google/slippy/variants/wolf/include/variant/acpi/mainboard.asl b/src/mainboard/google/slippy/variants/wolf/include/variant/acpi/mainboard.asl
index 9ac43e8a1e..2254f8ed46 100644
--- a/src/mainboard/google/slippy/variants/wolf/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/slippy/variants/wolf/include/variant/acpi/mainboard.asl
@@ -1,17 +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. */
 
 Scope (\_SB.PCI0.I2C0)
 {
diff --git a/src/mainboard/google/slippy/variants/wolf/include/variant/acpi/usb.asl b/src/mainboard/google/slippy/variants/wolf/include/variant/acpi/usb.asl
index 1799640070..fd98b61318 100644
--- a/src/mainboard/google/slippy/variants/wolf/include/variant/acpi/usb.asl
+++ b/src/mainboard/google/slippy/variants/wolf/include/variant/acpi/usb.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. */
 
 Scope (\_SB.PCI0.XHCI.HUB7.PRT1)
 {
diff --git a/src/mainboard/google/slippy/variants/wolf/include/variant/gpio.h b/src/mainboard/google/slippy/variants/wolf/include/variant/gpio.h
index c7e65d2305..2a3af00f2b 100644
--- a/src/mainboard/google/slippy/variants/wolf/include/variant/gpio.h
+++ b/src/mainboard/google/slippy/variants/wolf/include/variant/gpio.h
@@ -1,16 +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. */
 
 #ifndef WOLF_GPIO_H
 #define WOLF_GPIO_H
diff --git a/src/mainboard/google/slippy/variants/wolf/romstage.c b/src/mainboard/google/slippy/variants/wolf/romstage.c
index bb61a45e7f..dcd9ac06fd 100644
--- a/src/mainboard/google/slippy/variants/wolf/romstage.c
+++ b/src/mainboard/google/slippy/variants/wolf/romstage.c
@@ -1,16 +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 <stdint.h>
 #include <string.h>