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

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

Change-Id: If85e246550abe323d6a2a7c6301e8e91858cbe3a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40177
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

74 files changed, 148 insertions, 956 deletions

diff --git a/src/mainboard/google/hatch/bootblock.c b/src/mainboard/google/hatch/bootblock.c
index be773f260d..102b9b0adf 100644
--- a/src/mainboard/google/hatch/bootblock.c
+++ b/src/mainboard/google/hatch/bootblock.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 <baseboard/variants.h>
 #include <bootblock_common.h>
diff --git a/src/mainboard/google/hatch/chromeos.c b/src/mainboard/google/hatch/chromeos.c
index 8d6cb57666..4825b05885 100644
--- a/src/mainboard/google/hatch/chromeos.c
+++ b/src/mainboard/google/hatch/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 <arch/acpi.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/google/hatch/dsdt.asl b/src/mainboard/google/hatch/dsdt.asl
index 7ca266e2f9..04ce112480 100644
--- a/src/mainboard/google/hatch/dsdt.asl
+++ b/src/mainboard/google/hatch/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>
 #include <variant/ec.h>
diff --git a/src/mainboard/google/hatch/ec.c b/src/mainboard/google/hatch/ec.c
index 57241e3efd..f32f4fdf66 100644
--- a/src/mainboard/google/hatch/ec.c
+++ b/src/mainboard/google/hatch/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 <ec/ec.h>
diff --git a/src/mainboard/google/hatch/mainboard.c b/src/mainboard/google/hatch/mainboard.c
index 17f233c7c3..73c3456eec 100644
--- a/src/mainboard/google/hatch/mainboard.c
+++ b/src/mainboard/google/hatch/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 <baseboard/variants.h>
 #include <boardid.h>
diff --git a/src/mainboard/google/hatch/ramstage.c b/src/mainboard/google/hatch/ramstage.c
index 9b940b46d0..08e145cd16 100644
--- a/src/mainboard/google/hatch/ramstage.c
+++ b/src/mainboard/google/hatch/ramstage.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 <baseboard/variants.h>
diff --git a/src/mainboard/google/hatch/romstage_spd_cbfs.c b/src/mainboard/google/hatch/romstage_spd_cbfs.c
index b22ad8afb5..fc62fd0e38 100644
--- a/src/mainboard/google/hatch/romstage_spd_cbfs.c
+++ b/src/mainboard/google/hatch/romstage_spd_cbfs.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 <baseboard/variants.h>
 #include <console/console.h>
diff --git a/src/mainboard/google/hatch/romstage_spd_smbus.c b/src/mainboard/google/hatch/romstage_spd_smbus.c
index 3f91fd5916..4aa37fa6a4 100644
--- a/src/mainboard/google/hatch/romstage_spd_smbus.c
+++ b/src/mainboard/google/hatch/romstage_spd_smbus.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 <baseboard/variants.h>
 #include <soc/cnl_memcfg_init.h>
diff --git a/src/mainboard/google/hatch/smihandler.c b/src/mainboard/google/hatch/smihandler.c
index 51ace6d515..f743a88028 100644
--- a/src/mainboard/google/hatch/smihandler.c
+++ b/src/mainboard/google/hatch/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 <baseboard/variants.h>
 #include <cpu/x86/smm.h>
 #include <ec/google/chromeec/ec.h>
diff --git a/src/mainboard/google/hatch/variants/akemi/gpio.c b/src/mainboard/google/hatch/variants/akemi/gpio.c
index 92041d63ff..346801433a 100644
--- a/src/mainboard/google/hatch/variants/akemi/gpio.c
+++ b/src/mainboard/google/hatch/variants/akemi/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/akemi/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/akemi/include/variant/acpi/dptf.asl
index f05d2c847d..d1e19485b5 100644
--- a/src/mainboard/google/hatch/variants/akemi/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/akemi/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	95
 #define DPTF_CPU_CRITICAL	105
diff --git a/src/mainboard/google/hatch/variants/akemi/include/variant/ec.h b/src/mainboard/google/hatch/variants/akemi/include/variant/ec.h
index e2b5a5a94b..54877da690 100644
--- a/src/mainboard/google/hatch/variants/akemi/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/akemi/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/akemi/include/variant/gpio.h b/src/mainboard/google/hatch/variants/akemi/include/variant/gpio.h
index 99d3f6d247..ea720899c4 100644
--- a/src/mainboard/google/hatch/variants/akemi/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/akemi/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/akemi/variant.c b/src/mainboard/google/hatch/variants/akemi/variant.c
index 93a28042e2..5ed029ffd0 100644
--- a/src/mainboard/google/hatch/variants/akemi/variant.c
+++ b/src/mainboard/google/hatch/variants/akemi/variant.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 <baseboard/variants.h>
 #include <chip.h>
diff --git a/src/mainboard/google/hatch/variants/baseboard/gpio.c b/src/mainboard/google/hatch/variants/baseboard/gpio.c
index f149fe41e0..484057bef6 100644
--- a/src/mainboard/google/hatch/variants/baseboard/gpio.c
+++ b/src/mainboard/google/hatch/variants/baseboard/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/acpi/dptf.asl b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/acpi/dptf.asl
index caa47a253d..76b2615b40 100644
--- a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	95
 #define DPTF_CPU_CRITICAL	105
diff --git a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/ec.h b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/ec.h
index c904be84f8..48b473f978 100644
--- a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/ec.h
+++ b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/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 __BASEBOARD_EC_H__
 #define __BASEBOARD_EC_H__
diff --git a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/gpio.h
index 14e0108a1b..5fa25c157e 100644
--- a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/gpio.h
+++ b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/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 BASEBOARD_GPIO_H
 #define BASEBOARD_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/variants.h
index 34014a30d9..5355ea2b85 100644
--- a/src/mainboard/google/hatch/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/hatch/variants/baseboard/include/baseboard/variants.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 BASEBOARD_VARIANTS_H
 #define BASEBOARD_VARIANTS_H
diff --git a/src/mainboard/google/hatch/variants/baseboard/memory.c b/src/mainboard/google/hatch/variants/baseboard/memory.c
index fb4864e668..4ebff9b885 100644
--- a/src/mainboard/google/hatch/variants/baseboard/memory.c
+++ b/src/mainboard/google/hatch/variants/baseboard/memory.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 <baseboard/variants.h>
 #include <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/dratini/gpio.c b/src/mainboard/google/hatch/variants/dratini/gpio.c
index 25ba729bb4..6d2da60e9b 100644
--- a/src/mainboard/google/hatch/variants/dratini/gpio.c
+++ b/src/mainboard/google/hatch/variants/dratini/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/dratini/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/dratini/include/variant/acpi/dptf.asl
index aa7aeafc9b..ad1167a5ad 100644
--- a/src/mainboard/google/hatch/variants/dratini/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/dratini/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	90
 #define DPTF_CPU_CRITICAL	105
diff --git a/src/mainboard/google/hatch/variants/dratini/include/variant/ec.h b/src/mainboard/google/hatch/variants/dratini/include/variant/ec.h
index e2b5a5a94b..54877da690 100644
--- a/src/mainboard/google/hatch/variants/dratini/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/dratini/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/dratini/include/variant/gpio.h b/src/mainboard/google/hatch/variants/dratini/include/variant/gpio.h
index 99d3f6d247..ea720899c4 100644
--- a/src/mainboard/google/hatch/variants/dratini/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/dratini/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/dratini/include/variant/sku.h b/src/mainboard/google/hatch/variants/dratini/include/variant/sku.h
index 5766b79f12..3b9c51b836 100644
--- a/src/mainboard/google/hatch/variants/dratini/include/variant/sku.h
+++ b/src/mainboard/google/hatch/variants/dratini/include/variant/sku.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_SKU_H__
 #define __MAINBOARD_SKU_H__
diff --git a/src/mainboard/google/hatch/variants/dratini/ramstage.c b/src/mainboard/google/hatch/variants/dratini/ramstage.c
index 20ae7e35cb..8a9361c743 100644
--- a/src/mainboard/google/hatch/variants/dratini/ramstage.c
+++ b/src/mainboard/google/hatch/variants/dratini/ramstage.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 <delay.h>
 #include <gpio.h>
diff --git a/src/mainboard/google/hatch/variants/dratini/variant.c b/src/mainboard/google/hatch/variants/dratini/variant.c
index 04a305f0eb..a779d21fb4 100644
--- a/src/mainboard/google/hatch/variants/dratini/variant.c
+++ b/src/mainboard/google/hatch/variants/dratini/variant.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 <baseboard/variants.h>
 #include <variant/sku.h>
diff --git a/src/mainboard/google/hatch/variants/hatch/gpio.c b/src/mainboard/google/hatch/variants/hatch/gpio.c
index 6ff3cc7395..2faf7921dc 100644
--- a/src/mainboard/google/hatch/variants/hatch/gpio.c
+++ b/src/mainboard/google/hatch/variants/hatch/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/hatch/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/hatch/include/variant/acpi/dptf.asl
index 7d9006a068..231ff1bb72 100644
--- a/src/mainboard/google/hatch/variants/hatch/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/hatch/include/variant/acpi/dptf.asl
@@ -1,15 +1,4 @@
-/*
- * 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 <baseboard/acpi/dptf.asl>
diff --git a/src/mainboard/google/hatch/variants/hatch/include/variant/ec.h b/src/mainboard/google/hatch/variants/hatch/include/variant/ec.h
index e2b5a5a94b..54877da690 100644
--- a/src/mainboard/google/hatch/variants/hatch/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/hatch/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/hatch/include/variant/gpio.h b/src/mainboard/google/hatch/variants/hatch/include/variant/gpio.h
index 89e64fbe3a..d8f6d14672 100644
--- a/src/mainboard/google/hatch/variants/hatch/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/hatch/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/helios/gpio.c b/src/mainboard/google/hatch/variants/helios/gpio.c
index ac0f88686f..76739c0618 100644
--- a/src/mainboard/google/hatch/variants/helios/gpio.c
+++ b/src/mainboard/google/hatch/variants/helios/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/helios/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/helios/include/variant/acpi/dptf.asl
index e918718650..cf2d999e30 100644
--- a/src/mainboard/google/hatch/variants/helios/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/helios/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	0
 #define DPTF_CPU_CRITICAL	105
diff --git a/src/mainboard/google/hatch/variants/helios/include/variant/ec.h b/src/mainboard/google/hatch/variants/helios/include/variant/ec.h
index e2b5a5a94b..54877da690 100644
--- a/src/mainboard/google/hatch/variants/helios/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/helios/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/helios/include/variant/gpio.h b/src/mainboard/google/hatch/variants/helios/include/variant/gpio.h
index 99d3f6d247..ea720899c4 100644
--- a/src/mainboard/google/hatch/variants/helios/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/helios/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/helios/memory.c b/src/mainboard/google/hatch/variants/helios/memory.c
index 2a8971ecac..2ac088bfa7 100644
--- a/src/mainboard/google/hatch/variants/helios/memory.c
+++ b/src/mainboard/google/hatch/variants/helios/memory.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 <baseboard/variants.h>
 #include <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/helios/ramstage.c b/src/mainboard/google/hatch/variants/helios/ramstage.c
index 20ae7e35cb..8a9361c743 100644
--- a/src/mainboard/google/hatch/variants/helios/ramstage.c
+++ b/src/mainboard/google/hatch/variants/helios/ramstage.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 <delay.h>
 #include <gpio.h>
diff --git a/src/mainboard/google/hatch/variants/jinlon/gpio.c b/src/mainboard/google/hatch/variants/jinlon/gpio.c
index 2e09488078..4cf2bfd9d2 100644
--- a/src/mainboard/google/hatch/variants/jinlon/gpio.c
+++ b/src/mainboard/google/hatch/variants/jinlon/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/jinlon/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/jinlon/include/variant/acpi/dptf.asl
index 4f440e50e1..7824d11776 100644
--- a/src/mainboard/google/hatch/variants/jinlon/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/jinlon/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	70
 #define DPTF_CPU_CRITICAL	105
diff --git a/src/mainboard/google/hatch/variants/jinlon/include/variant/ec.h b/src/mainboard/google/hatch/variants/jinlon/include/variant/ec.h
index e2b5a5a94b..54877da690 100644
--- a/src/mainboard/google/hatch/variants/jinlon/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/jinlon/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/jinlon/include/variant/gpio.h b/src/mainboard/google/hatch/variants/jinlon/include/variant/gpio.h
index 99d3f6d247..ea720899c4 100644
--- a/src/mainboard/google/hatch/variants/jinlon/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/jinlon/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/jinlon/ramstage.c b/src/mainboard/google/hatch/variants/jinlon/ramstage.c
index 20ae7e35cb..8a9361c743 100644
--- a/src/mainboard/google/hatch/variants/jinlon/ramstage.c
+++ b/src/mainboard/google/hatch/variants/jinlon/ramstage.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 <delay.h>
 #include <gpio.h>
diff --git a/src/mainboard/google/hatch/variants/kindred/gpio.c b/src/mainboard/google/hatch/variants/kindred/gpio.c
index 7ce62f0daa..588e6ce1be 100644
--- a/src/mainboard/google/hatch/variants/kindred/gpio.c
+++ b/src/mainboard/google/hatch/variants/kindred/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/kindred/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/kindred/include/variant/acpi/dptf.asl
index def0df4c27..76b064ddfd 100644
--- a/src/mainboard/google/hatch/variants/kindred/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/kindred/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	90
 #define DPTF_CPU_CRITICAL	105
diff --git a/src/mainboard/google/hatch/variants/kindred/include/variant/ec.h b/src/mainboard/google/hatch/variants/kindred/include/variant/ec.h
index e2b5a5a94b..54877da690 100644
--- a/src/mainboard/google/hatch/variants/kindred/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/kindred/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/kindred/include/variant/gpio.h b/src/mainboard/google/hatch/variants/kindred/include/variant/gpio.h
index 99d3f6d247..ea720899c4 100644
--- a/src/mainboard/google/hatch/variants/kindred/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/kindred/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/kindred/variant.c b/src/mainboard/google/hatch/variants/kindred/variant.c
index ce9df8a49b..583bcff8ae 100644
--- a/src/mainboard/google/hatch/variants/kindred/variant.c
+++ b/src/mainboard/google/hatch/variants/kindred/variant.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 <baseboard/variants.h>
 #include <chip.h>
diff --git a/src/mainboard/google/hatch/variants/kohaku/gpio.c b/src/mainboard/google/hatch/variants/kohaku/gpio.c
index d98a25cdd4..8df69cb89c 100644
--- a/src/mainboard/google/hatch/variants/kohaku/gpio.c
+++ b/src/mainboard/google/hatch/variants/kohaku/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/kohaku/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/kohaku/include/variant/acpi/dptf.asl
index 756f8aacb4..894e2f0d2c 100644
--- a/src/mainboard/google/hatch/variants/kohaku/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/kohaku/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	50
 #define DPTF_CPU_CRITICAL	105
diff --git a/src/mainboard/google/hatch/variants/kohaku/include/variant/ec.h b/src/mainboard/google/hatch/variants/kohaku/include/variant/ec.h
index f17fbc1dee..7f12e95888 100644
--- a/src/mainboard/google/hatch/variants/kohaku/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/kohaku/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/kohaku/include/variant/gpio.h b/src/mainboard/google/hatch/variants/kohaku/include/variant/gpio.h
index 89e64fbe3a..d8f6d14672 100644
--- a/src/mainboard/google/hatch/variants/kohaku/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/kohaku/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/kohaku/memory.c b/src/mainboard/google/hatch/variants/kohaku/memory.c
index 4d111e2844..087a34d15d 100644
--- a/src/mainboard/google/hatch/variants/kohaku/memory.c
+++ b/src/mainboard/google/hatch/variants/kohaku/memory.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 <baseboard/variants.h>
 #include <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/kohaku/ramstage.c b/src/mainboard/google/hatch/variants/kohaku/ramstage.c
index 20ae7e35cb..8a9361c743 100644
--- a/src/mainboard/google/hatch/variants/kohaku/ramstage.c
+++ b/src/mainboard/google/hatch/variants/kohaku/ramstage.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 <delay.h>
 #include <gpio.h>
diff --git a/src/mainboard/google/hatch/variants/mushu/gpio.c b/src/mainboard/google/hatch/variants/mushu/gpio.c
index e01d1b4d48..a7898827d7 100644
--- a/src/mainboard/google/hatch/variants/mushu/gpio.c
+++ b/src/mainboard/google/hatch/variants/mushu/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/mushu/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/mushu/include/variant/acpi/dptf.asl
index 7d9006a068..231ff1bb72 100644
--- a/src/mainboard/google/hatch/variants/mushu/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/mushu/include/variant/acpi/dptf.asl
@@ -1,15 +1,4 @@
-/*
- * 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 <baseboard/acpi/dptf.asl>
diff --git a/src/mainboard/google/hatch/variants/mushu/include/variant/ec.h b/src/mainboard/google/hatch/variants/mushu/include/variant/ec.h
index e2b5a5a94b..54877da690 100644
--- a/src/mainboard/google/hatch/variants/mushu/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/mushu/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/mushu/include/variant/gpio.h b/src/mainboard/google/hatch/variants/mushu/include/variant/gpio.h
index 89e64fbe3a..d8f6d14672 100644
--- a/src/mainboard/google/hatch/variants/mushu/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/mushu/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/nightfury/gpio.c b/src/mainboard/google/hatch/variants/nightfury/gpio.c
index 6c9c40e0dd..abcb1d83dd 100644
--- a/src/mainboard/google/hatch/variants/nightfury/gpio.c
+++ b/src/mainboard/google/hatch/variants/nightfury/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/nightfury/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/nightfury/include/variant/acpi/dptf.asl
index 756f8aacb4..894e2f0d2c 100644
--- a/src/mainboard/google/hatch/variants/nightfury/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/nightfury/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	50
 #define DPTF_CPU_CRITICAL	105
diff --git a/src/mainboard/google/hatch/variants/nightfury/include/variant/ec.h b/src/mainboard/google/hatch/variants/nightfury/include/variant/ec.h
index f17fbc1dee..7f12e95888 100644
--- a/src/mainboard/google/hatch/variants/nightfury/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/nightfury/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/nightfury/include/variant/gpio.h b/src/mainboard/google/hatch/variants/nightfury/include/variant/gpio.h
index 99d3f6d247..ea720899c4 100644
--- a/src/mainboard/google/hatch/variants/nightfury/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/nightfury/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/nightfury/memory.c b/src/mainboard/google/hatch/variants/nightfury/memory.c
index 358982efff..25cdbb7f97 100644
--- a/src/mainboard/google/hatch/variants/nightfury/memory.c
+++ b/src/mainboard/google/hatch/variants/nightfury/memory.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 <baseboard/variants.h>
 #include <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/nightfury/ramstage.c b/src/mainboard/google/hatch/variants/nightfury/ramstage.c
index 2201efded3..fb28259752 100644
--- a/src/mainboard/google/hatch/variants/nightfury/ramstage.c
+++ b/src/mainboard/google/hatch/variants/nightfury/ramstage.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 <delay.h>
 #include <gpio.h>
diff --git a/src/mainboard/google/hatch/variants/puff/gpio.c b/src/mainboard/google/hatch/variants/puff/gpio.c
index d1465fe9fa..8e4f170d4f 100644
--- a/src/mainboard/google/hatch/variants/puff/gpio.c
+++ b/src/mainboard/google/hatch/variants/puff/gpio.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 <baseboard/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/google/hatch/variants/puff/include/variant/ec.h b/src/mainboard/google/hatch/variants/puff/include/variant/ec.h
index 9a3c64e5b0..5e2043fe5c 100644
--- a/src/mainboard/google/hatch/variants/puff/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/puff/include/variant/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 VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/puff/include/variant/gpio.h b/src/mainboard/google/hatch/variants/puff/include/variant/gpio.h
index 40e13ebd77..6c958479fa 100644
--- a/src/mainboard/google/hatch/variants/puff/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/puff/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 VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/puff/mainboard.c b/src/mainboard/google/hatch/variants/puff/mainboard.c
index 7dcd8c756c..e8098b96ac 100644
--- a/src/mainboard/google/hatch/variants/puff/mainboard.c
+++ b/src/mainboard/google/hatch/variants/puff/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 <baseboard/variants.h>
 #include <chip.h>
diff --git a/src/mainboard/google/hatch/variants/stryke/gpio.c b/src/mainboard/google/hatch/variants/stryke/gpio.c
index 58511cae1e..0249a307d1 100644
--- a/src/mainboard/google/hatch/variants/stryke/gpio.c
+++ b/src/mainboard/google/hatch/variants/stryke/gpio.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 <baseboard/gpio.h>
diff --git a/src/mainboard/google/hatch/variants/stryke/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/stryke/include/variant/acpi/dptf.asl
index 496334daab..231ff1bb72 100644
--- a/src/mainboard/google/hatch/variants/stryke/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/stryke/include/variant/acpi/dptf.asl
@@ -1,14 +1,4 @@
-/*
- * 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 <baseboard/acpi/dptf.asl>
diff --git a/src/mainboard/google/hatch/variants/stryke/include/variant/ec.h b/src/mainboard/google/hatch/variants/stryke/include/variant/ec.h
index 25269627bd..54877da690 100644
--- a/src/mainboard/google/hatch/variants/stryke/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/stryke/include/variant/ec.h
@@ -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. */
 
 #ifndef VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/stryke/include/variant/gpio.h b/src/mainboard/google/hatch/variants/stryke/include/variant/gpio.h
index 132457e5dc..ea720899c4 100644
--- a/src/mainboard/google/hatch/variants/stryke/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/stryke/include/variant/gpio.h
@@ -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. */
 
 #ifndef VARIANT_GPIO_H
 #define VARIANT_GPIO_H
diff --git a/src/mainboard/google/hatch/variants/sushi/include/variant/acpi/dptf.asl b/src/mainboard/google/hatch/variants/sushi/include/variant/acpi/dptf.asl
index 496334daab..231ff1bb72 100644
--- a/src/mainboard/google/hatch/variants/sushi/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/hatch/variants/sushi/include/variant/acpi/dptf.asl
@@ -1,14 +1,4 @@
-/*
- * 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 <baseboard/acpi/dptf.asl>
diff --git a/src/mainboard/google/hatch/variants/sushi/include/variant/ec.h b/src/mainboard/google/hatch/variants/sushi/include/variant/ec.h
index 25269627bd..54877da690 100644
--- a/src/mainboard/google/hatch/variants/sushi/include/variant/ec.h
+++ b/src/mainboard/google/hatch/variants/sushi/include/variant/ec.h
@@ -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. */
 
 #ifndef VARIANT_EC_H
 #define VARIANT_EC_H
diff --git a/src/mainboard/google/hatch/variants/sushi/include/variant/gpio.h b/src/mainboard/google/hatch/variants/sushi/include/variant/gpio.h
index 3b07c1ba20..6aaeccf763 100644
--- a/src/mainboard/google/hatch/variants/sushi/include/variant/gpio.h
+++ b/src/mainboard/google/hatch/variants/sushi/include/variant/gpio.h
@@ -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. */
 
 #ifndef VARIANT_GPIO_H
 #define VARIANT_GPIO_H