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 be773f260df8..102b9b0adf56 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 8d6cb576669a..4825b05885c2 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 7ca266e2f9ea..04ce1124801b 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 57241e3efd59..f32f4fdf66b0 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 17f233c7c335..73c3456eeceb 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 9b940b46d01c..08e145cd161f 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 b22ad8afb565..fc62fd0e38d9 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 3f91fd591624..4aa37fa6a46c 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 51ace6d51534..f743a880289e 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 92041d63ff87..346801433abd 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 f05d2c847d3c..d1e19485b5a5 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 e2b5a5a94bd0..54877da690aa 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 99d3f6d24776..ea720899c444 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 93a28042e2da..5ed029ffd091 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 f149fe41e095..484057bef677 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 caa47a253d88..76b2615b4088 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 c904be84f898..48b473f97816 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 14e0108a1b70..5fa25c157e6d 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 34014a30d9b8..5355ea2b8584 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 fb4864e6687d..4ebff9b88548 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 25ba729bb48f..6d2da60e9bfa 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 aa7aeafc9bd9..ad1167a5ad79 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 e2b5a5a94bd0..54877da690aa 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 99d3f6d24776..ea720899c444 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 5766b79f1263..3b9c51b83648 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 20ae7e35cb53..8a9361c74373 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 04a305f0eb7a..a779d21fb480 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 6ff3cc739543..2faf7921dc69 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 7d9006a06864..231ff1bb720b 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 e2b5a5a94bd0..54877da690aa 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 89e64fbe3a23..d8f6d14672d2 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 ac0f88686f54..76739c061840 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 e9187186508b..cf2d999e3093 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 e2b5a5a94bd0..54877da690aa 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 99d3f6d24776..ea720899c444 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 2a8971ecac6f..2ac088bfa7a0 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 20ae7e35cb53..8a9361c74373 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 2e094880783b..4cf2bfd9d242 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 4f440e50e173..7824d117768c 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 e2b5a5a94bd0..54877da690aa 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 99d3f6d24776..ea720899c444 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 20ae7e35cb53..8a9361c74373 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 7ce62f0daa3e..588e6ce1beb2 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 def0df4c27c1..76b064ddfd6f 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 e2b5a5a94bd0..54877da690aa 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 99d3f6d24776..ea720899c444 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 ce9df8a49be8..583bcff8ae07 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 d98a25cdd434..8df69cb89c80 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 756f8aacb4b4..894e2f0d2cfd 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 f17fbc1dee21..7f12e958880f 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 89e64fbe3a23..d8f6d14672d2 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 4d111e28444c..087a34d15dda 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 20ae7e35cb53..8a9361c74373 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 e01d1b4d48b1..a7898827d74b 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 7d9006a06864..231ff1bb720b 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 e2b5a5a94bd0..54877da690aa 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 89e64fbe3a23..d8f6d14672d2 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 6c9c40e0dd83..abcb1d83dda7 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 756f8aacb4b4..894e2f0d2cfd 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 f17fbc1dee21..7f12e958880f 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 99d3f6d24776..ea720899c444 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 358982efff4b..25cdbb7f97c2 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 2201efded34b..fb2825975247 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 d1465fe9fada..8e4f170d4f2d 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 9a3c64e5b005..5e2043fe5c21 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 40e13ebd7790..6c958479fafa 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 7dcd8c756ca7..e8098b96ac3b 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 58511cae1e0a..0249a307d122 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 496334daaba5..231ff1bb720b 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 25269627bdec..54877da690aa 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 132457e5dc5b..ea720899c444 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 496334daaba5..231ff1bb720b 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 25269627bdec..54877da690aa 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 3b07c1ba20bb..6aaeccf7638f 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