mainboard/intel: Use SPDX for GPL-2.0-only files

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

Change-Id: I1ea2eebfdd43610e42b4cf04409ec76c2e8b0042
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40082
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

296 files changed, 593 insertions, 3876 deletions

diff --git a/src/mainboard/intel/baskingridge/acpi/mainboard.asl b/src/mainboard/intel/baskingridge/acpi/mainboard.asl
index 91bfe1a09dea..d551e51be915 100644
--- a/src/mainboard/intel/baskingridge/acpi/mainboard.asl
+++ b/src/mainboard/intel/baskingridge/acpi/mainboard.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Device (PWRB)
 {
diff --git a/src/mainboard/intel/baskingridge/acpi/platform.asl b/src/mainboard/intel/baskingridge/acpi/platform.asl
index 9a79b56e7250..94ee222d5191 100644
--- a/src/mainboard/intel/baskingridge/acpi/platform.asl
+++ b/src/mainboard/intel/baskingridge/acpi/platform.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <southbridge/intel/common/acpi/platform.asl>
 
diff --git a/src/mainboard/intel/baskingridge/acpi/superio.asl b/src/mainboard/intel/baskingridge/acpi/superio.asl
index 2d151969d472..f271f7b63b48 100644
--- a/src/mainboard/intel/baskingridge/acpi/superio.asl
+++ b/src/mainboard/intel/baskingridge/acpi/superio.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* Values should match those defined in devicetree.cb */
 
diff --git a/src/mainboard/intel/baskingridge/acpi/thermal.asl b/src/mainboard/intel/baskingridge/acpi/thermal.asl
index b7864f8599ee..90e36f6e9617 100644
--- a/src/mainboard/intel/baskingridge/acpi/thermal.asl
+++ b/src/mainboard/intel/baskingridge/acpi/thermal.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 // Thermal Zone
 
diff --git a/src/mainboard/intel/baskingridge/acpi_tables.c b/src/mainboard/intel/baskingridge/acpi_tables.c
index f688af22f8f4..935acf17ede9 100644
--- a/src/mainboard/intel/baskingridge/acpi_tables.c
+++ b/src/mainboard/intel/baskingridge/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <types.h>
 #include <arch/acpi.h>
diff --git a/src/mainboard/intel/baskingridge/chromeos.c b/src/mainboard/intel/baskingridge/chromeos.c
index a814c94ae67b..6a42dc7a45eb 100644
--- a/src/mainboard/intel/baskingridge/chromeos.c
+++ b/src/mainboard/intel/baskingridge/chromeos.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <bootmode.h>
 #include <boot/coreboot_tables.h>
diff --git a/src/mainboard/intel/baskingridge/dsdt.asl b/src/mainboard/intel/baskingridge/dsdt.asl
index e185335439b6..8957f752a1f9 100644
--- a/src/mainboard/intel/baskingridge/dsdt.asl
+++ b/src/mainboard/intel/baskingridge/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. */
 
 #define ENABLE_TPM
 
diff --git a/src/mainboard/intel/baskingridge/gpio.h b/src/mainboard/intel/baskingridge/gpio.h
index 7a18085d8345..4ec8dabcc58d 100644
--- a/src/mainboard/intel/baskingridge/gpio.h
+++ b/src/mainboard/intel/baskingridge/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 BASKING_RIDGE_GPIO_H
 #define BASKING_RIDGE_GPIO_H
diff --git a/src/mainboard/intel/baskingridge/hda_verb.c b/src/mainboard/intel/baskingridge/hda_verb.c
index 11041770e4f0..18eedc23cda4 100644
--- a/src/mainboard/intel/baskingridge/hda_verb.c
+++ b/src/mainboard/intel/baskingridge/hda_verb.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/intel/baskingridge/mainboard.c b/src/mainboard/intel/baskingridge/mainboard.c
index d60d3bf7d82a..db86877de3ea 100644
--- a/src/mainboard/intel/baskingridge/mainboard.c
+++ b/src/mainboard/intel/baskingridge/mainboard.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <types.h>
 #include <device/device.h>
diff --git a/src/mainboard/intel/baskingridge/mainboard_smi.c b/src/mainboard/intel/baskingridge/mainboard_smi.c
index cc9b0e7473ec..5eef5eb31ad3 100644
--- a/src/mainboard/intel/baskingridge/mainboard_smi.c
+++ b/src/mainboard/intel/baskingridge/mainboard_smi.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/io.h>
diff --git a/src/mainboard/intel/baskingridge/romstage.c b/src/mainboard/intel/baskingridge/romstage.c
index 2f89262c4d50..b89d13593cf0 100644
--- a/src/mainboard/intel/baskingridge/romstage.c
+++ b/src/mainboard/intel/baskingridge/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <stdint.h>
 #include <stddef.h>
diff --git a/src/mainboard/intel/baskingridge/thermal.h b/src/mainboard/intel/baskingridge/thermal.h
index e8a93cc01aca..af37141d8b47 100644
--- a/src/mainboard/intel/baskingridge/thermal.h
+++ b/src/mainboard/intel/baskingridge/thermal.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef BASKING_RIDGE_THERMAL_H
 #define BASKING_RIDGE_THERMAL_H
diff --git a/src/mainboard/intel/cannonlake_rvp/bootblock.c b/src/mainboard/intel/cannonlake_rvp/bootblock.c
index c43ea9a503ef..28061399a1d7 100644
--- a/src/mainboard/intel/cannonlake_rvp/bootblock.c
+++ b/src/mainboard/intel/cannonlake_rvp/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/intel/cannonlake_rvp/chromeos.c b/src/mainboard/intel/cannonlake_rvp/chromeos.c
index c23c49640b97..f4a7b4384234 100644
--- a/src/mainboard/intel/cannonlake_rvp/chromeos.c
+++ b/src/mainboard/intel/cannonlake_rvp/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/intel/cannonlake_rvp/dsdt.asl b/src/mainboard/intel/cannonlake_rvp/dsdt.asl
index 6455c123a600..23a3932a6f42 100644
--- a/src/mainboard/intel/cannonlake_rvp/dsdt.asl
+++ b/src/mainboard/intel/cannonlake_rvp/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/cannonlake_rvp/mainboard.c b/src/mainboard/intel/cannonlake_rvp/mainboard.c
index 3f6174debaca..1fb4997b5db0 100644
--- a/src/mainboard/intel/cannonlake_rvp/mainboard.c
+++ b/src/mainboard/intel/cannonlake_rvp/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 <arch/acpi.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/cannonlake_rvp/romstage_fsp_params.c b/src/mainboard/intel/cannonlake_rvp/romstage_fsp_params.c
index 91daaaebc8fa..483270abb889 100644
--- a/src/mainboard/intel/cannonlake_rvp/romstage_fsp_params.c
+++ b/src/mainboard/intel/cannonlake_rvp/romstage_fsp_params.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 <cbfs.h>
 #include <console/console.h>
diff --git a/src/mainboard/intel/cannonlake_rvp/smihandler.c b/src/mainboard/intel/cannonlake_rvp/smihandler.c
index e2573d022ac4..98459b606056 100644
--- a/src/mainboard/intel/cannonlake_rvp/smihandler.c
+++ b/src/mainboard/intel/cannonlake_rvp/smihandler.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <console/console.h>
diff --git a/src/mainboard/intel/cannonlake_rvp/spd/spd.h b/src/mainboard/intel/cannonlake_rvp/spd/spd.h
index fc5686004aca..9a348af09e2d 100644
--- a/src/mainboard/intel/cannonlake_rvp/spd/spd.h
+++ b/src/mainboard/intel/cannonlake_rvp/spd/spd.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_SPD_H
 #define MAINBOARD_SPD_H
diff --git a/src/mainboard/intel/cannonlake_rvp/spd/spd_util.c b/src/mainboard/intel/cannonlake_rvp/spd/spd_util.c
index 72439aa0d649..c45491795bfa 100644
--- a/src/mainboard/intel/cannonlake_rvp/spd/spd_util.c
+++ b/src/mainboard/intel/cannonlake_rvp/spd/spd_util.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <stdint.h>
 #include <string.h>
diff --git a/src/mainboard/intel/cannonlake_rvp/variants/baseboard/gpio.c b/src/mainboard/intel/cannonlake_rvp/variants/baseboard/gpio.c
index 560aab90da44..0acae5867c0d 100644
--- a/src/mainboard/intel/cannonlake_rvp/variants/baseboard/gpio.c
+++ b/src/mainboard/intel/cannonlake_rvp/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 <baseboard/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/cannonlake_rvp/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/intel/cannonlake_rvp/variants/baseboard/include/baseboard/gpio.h
index 84d0c9ec9c36..f5c5715c6e1d 100644
--- a/src/mainboard/intel/cannonlake_rvp/variants/baseboard/include/baseboard/gpio.h
+++ b/src/mainboard/intel/cannonlake_rvp/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/intel/cannonlake_rvp/variants/baseboard/include/baseboard/variants.h b/src/mainboard/intel/cannonlake_rvp/variants/baseboard/include/baseboard/variants.h
index 1f54bf706553..7968ed77b8dd 100644
--- a/src/mainboard/intel/cannonlake_rvp/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/intel/cannonlake_rvp/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/intel/cannonlake_rvp/variants/baseboard/nhlt.c b/src/mainboard/intel/cannonlake_rvp/variants/baseboard/nhlt.c
index 42573712d9a8..003408e3225e 100644
--- a/src/mainboard/intel/cannonlake_rvp/variants/baseboard/nhlt.c
+++ b/src/mainboard/intel/cannonlake_rvp/variants/baseboard/nhlt.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/intel/cannonlake_rvp/variants/cnl_u/include/variant/gpio.h b/src/mainboard/intel/cannonlake_rvp/variants/cnl_u/include/variant/gpio.h
index bcb87cb1d732..785fcaceb180 100644
--- a/src/mainboard/intel/cannonlake_rvp/variants/cnl_u/include/variant/gpio.h
+++ b/src/mainboard/intel/cannonlake_rvp/variants/cnl_u/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 __MAINBOARD_GPIO_H__
 #define __MAINBOARD_GPIO_H__
diff --git a/src/mainboard/intel/cannonlake_rvp/variants/cnl_y/include/variant/gpio.h b/src/mainboard/intel/cannonlake_rvp/variants/cnl_y/include/variant/gpio.h
index bcb87cb1d732..785fcaceb180 100644
--- a/src/mainboard/intel/cannonlake_rvp/variants/cnl_y/include/variant/gpio.h
+++ b/src/mainboard/intel/cannonlake_rvp/variants/cnl_y/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 __MAINBOARD_GPIO_H__
 #define __MAINBOARD_GPIO_H__
diff --git a/src/mainboard/intel/coffeelake_rvp/bootblock.c b/src/mainboard/intel/coffeelake_rvp/bootblock.c
index bba133f9bdc3..1a7cd2a1b6ac 100644
--- a/src/mainboard/intel/coffeelake_rvp/bootblock.c
+++ b/src/mainboard/intel/coffeelake_rvp/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/intel/coffeelake_rvp/chromeos.c b/src/mainboard/intel/coffeelake_rvp/chromeos.c
index 48db5bcdbb17..29d8fcca16a8 100644
--- a/src/mainboard/intel/coffeelake_rvp/chromeos.c
+++ b/src/mainboard/intel/coffeelake_rvp/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/intel/coffeelake_rvp/dsdt.asl b/src/mainboard/intel/coffeelake_rvp/dsdt.asl
index 03ecf114a37e..1aa9020fcb2f 100644
--- a/src/mainboard/intel/coffeelake_rvp/dsdt.asl
+++ b/src/mainboard/intel/coffeelake_rvp/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/coffeelake_rvp/hda_verb.c b/src/mainboard/intel/coffeelake_rvp/hda_verb.c
index 3fbc3a24c3c7..6a54dbddbecb 100644
--- a/src/mainboard/intel/coffeelake_rvp/hda_verb.c
+++ b/src/mainboard/intel/coffeelake_rvp/hda_verb.c
@@ -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 "variant/hda_verb.h"
diff --git a/src/mainboard/intel/coffeelake_rvp/mainboard.c b/src/mainboard/intel/coffeelake_rvp/mainboard.c
index 6077cbfbba2a..48dbeb48ced1 100644
--- a/src/mainboard/intel/coffeelake_rvp/mainboard.c
+++ b/src/mainboard/intel/coffeelake_rvp/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 <arch/acpi.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/coffeelake_rvp/memory.c b/src/mainboard/intel/coffeelake_rvp/memory.c
index 85d089f74a23..d7d8b4e6f2b0 100644
--- a/src/mainboard/intel/coffeelake_rvp/memory.c
+++ b/src/mainboard/intel/coffeelake_rvp/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/intel/coffeelake_rvp/romstage.c b/src/mainboard/intel/coffeelake_rvp/romstage.c
index e0532db7e349..b10e1bd8d4a3 100644
--- a/src/mainboard/intel/coffeelake_rvp/romstage.c
+++ b/src/mainboard/intel/coffeelake_rvp/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <baseboard/variants.h>
 #include <soc/cnl_memcfg_init.h>
diff --git a/src/mainboard/intel/coffeelake_rvp/variants/baseboard/gpio.c b/src/mainboard/intel/coffeelake_rvp/variants/baseboard/gpio.c
index 62b0b372a8d6..ced535ee2f59 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/baseboard/gpio.c
+++ b/src/mainboard/intel/coffeelake_rvp/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 <baseboard/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/coffeelake_rvp/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/intel/coffeelake_rvp/variants/baseboard/include/baseboard/gpio.h
index 84d0c9ec9c36..f5c5715c6e1d 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/baseboard/include/baseboard/gpio.h
+++ b/src/mainboard/intel/coffeelake_rvp/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/intel/coffeelake_rvp/variants/baseboard/include/baseboard/variants.h b/src/mainboard/intel/coffeelake_rvp/variants/baseboard/include/baseboard/variants.h
index bbdcedfdf6e9..6e1b90a24e39 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/intel/coffeelake_rvp/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/intel/coffeelake_rvp/variants/baseboard/nhlt.c b/src/mainboard/intel/coffeelake_rvp/variants/baseboard/nhlt.c
index d342678c3e54..c624fc12349b 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/baseboard/nhlt.c
+++ b/src/mainboard/intel/coffeelake_rvp/variants/baseboard/nhlt.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/intel/coffeelake_rvp/variants/cfl_h/include/variant/hda_verb.h b/src/mainboard/intel/coffeelake_rvp/variants/cfl_h/include/variant/hda_verb.h
index c285da764492..78ab56654cfc 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/cfl_h/include/variant/hda_verb.h
+++ b/src/mainboard/intel/coffeelake_rvp/variants/cfl_h/include/variant/hda_verb.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 HDA_VERB_H
 #define HDA_VERB_H
diff --git a/src/mainboard/intel/coffeelake_rvp/variants/cfl_s/include/variant/hda_verb.h b/src/mainboard/intel/coffeelake_rvp/variants/cfl_s/include/variant/hda_verb.h
index c285da764492..78ab56654cfc 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/cfl_s/include/variant/hda_verb.h
+++ b/src/mainboard/intel/coffeelake_rvp/variants/cfl_s/include/variant/hda_verb.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 HDA_VERB_H
 #define HDA_VERB_H
diff --git a/src/mainboard/intel/coffeelake_rvp/variants/cml_u/include/variant/gpio.h b/src/mainboard/intel/coffeelake_rvp/variants/cml_u/include/variant/gpio.h
index bcb87cb1d732..785fcaceb180 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/cml_u/include/variant/gpio.h
+++ b/src/mainboard/intel/coffeelake_rvp/variants/cml_u/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 __MAINBOARD_GPIO_H__
 #define __MAINBOARD_GPIO_H__
diff --git a/src/mainboard/intel/coffeelake_rvp/variants/cml_u/include/variant/hda_verb.h b/src/mainboard/intel/coffeelake_rvp/variants/cml_u/include/variant/hda_verb.h
index d776f4c1b338..3131debf58d4 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/cml_u/include/variant/hda_verb.h
+++ b/src/mainboard/intel/coffeelake_rvp/variants/cml_u/include/variant/hda_verb.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 HDA_VERB_H
 #define HDA_VERB_H
diff --git a/src/mainboard/intel/coffeelake_rvp/variants/whl_u/include/variant/gpio.h b/src/mainboard/intel/coffeelake_rvp/variants/whl_u/include/variant/gpio.h
index bcb87cb1d732..785fcaceb180 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/whl_u/include/variant/gpio.h
+++ b/src/mainboard/intel/coffeelake_rvp/variants/whl_u/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 __MAINBOARD_GPIO_H__
 #define __MAINBOARD_GPIO_H__
diff --git a/src/mainboard/intel/coffeelake_rvp/variants/whl_u/include/variant/hda_verb.h b/src/mainboard/intel/coffeelake_rvp/variants/whl_u/include/variant/hda_verb.h
index d776f4c1b338..3131debf58d4 100644
--- a/src/mainboard/intel/coffeelake_rvp/variants/whl_u/include/variant/hda_verb.h
+++ b/src/mainboard/intel/coffeelake_rvp/variants/whl_u/include/variant/hda_verb.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 HDA_VERB_H
 #define HDA_VERB_H
diff --git a/src/mainboard/intel/d510mo/acpi/ich7_pci_irqs.asl b/src/mainboard/intel/d510mo/acpi/ich7_pci_irqs.asl
index dc58f0207740..255abe84b310 100644
--- a/src/mainboard/intel/d510mo/acpi/ich7_pci_irqs.asl
+++ b/src/mainboard/intel/d510mo/acpi/ich7_pci_irqs.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. */
 
 /* This is board specific information:
  * IRQ routing for the 0:1e.0 PCI bridge of the ICH7
diff --git a/src/mainboard/intel/d510mo/acpi_tables.c b/src/mainboard/intel/d510mo/acpi_tables.c
index 69787a93ea41..f9c941d79e8f 100644
--- a/src/mainboard/intel/d510mo/acpi_tables.c
+++ b/src/mainboard/intel/d510mo/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <southbridge/intel/i82801gx/nvs.h>
 
diff --git a/src/mainboard/intel/d510mo/cstates.c b/src/mainboard/intel/d510mo/cstates.c
index 62b3bd3fba8d..10498e115029 100644
--- a/src/mainboard/intel/d510mo/cstates.c
+++ b/src/mainboard/intel/d510mo/cstates.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/acpigen.h>
 
diff --git a/src/mainboard/intel/d510mo/dsdt.asl b/src/mainboard/intel/d510mo/dsdt.asl
index 88b4e126e5ae..75b17df090ec 100644
--- a/src/mainboard/intel/d510mo/dsdt.asl
+++ b/src/mainboard/intel/d510mo/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/d510mo/gpio.c b/src/mainboard/intel/d510mo/gpio.c
index 71e93613f28f..006c67542fd8 100644
--- a/src/mainboard/intel/d510mo/gpio.c
+++ b/src/mainboard/intel/d510mo/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 <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/intel/d510mo/hda_verb.c b/src/mainboard/intel/d510mo/hda_verb.c
index 6561ddf3a96d..6c48e6504987 100644
--- a/src/mainboard/intel/d510mo/hda_verb.c
+++ b/src/mainboard/intel/d510mo/hda_verb.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/intel/d510mo/mainboard.c b/src/mainboard/intel/d510mo/mainboard.c
index dd930d31adbd..4834c625b10f 100644
--- a/src/mainboard/intel/d510mo/mainboard.c
+++ b/src/mainboard/intel/d510mo/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 <device/device.h>
 #include <drivers/intel/gma/int15.h>
diff --git a/src/mainboard/intel/d945gclf/acpi/ec.asl b/src/mainboard/intel/d945gclf/acpi/ec.asl
index f42855b1823d..0cff3760bd21 100644
--- a/src/mainboard/intel/d945gclf/acpi/ec.asl
+++ b/src/mainboard/intel/d945gclf/acpi/ec.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Device(EC0)
 {
diff --git a/src/mainboard/intel/d945gclf/acpi/ich7_pci_irqs.asl b/src/mainboard/intel/d945gclf/acpi/ich7_pci_irqs.asl
index a079c059e079..209ba8329c38 100644
--- a/src/mainboard/intel/d945gclf/acpi/ich7_pci_irqs.asl
+++ b/src/mainboard/intel/d945gclf/acpi/ich7_pci_irqs.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. */
 
 /* This is board specific information: IRQ routing for the
  * 0:1e.0 PCI bridge of the ICH7
diff --git a/src/mainboard/intel/d945gclf/acpi/mainboard.asl b/src/mainboard/intel/d945gclf/acpi/mainboard.asl
index 5187b2a9731f..1e31c06ec94b 100644
--- a/src/mainboard/intel/d945gclf/acpi/mainboard.asl
+++ b/src/mainboard/intel/d945gclf/acpi/mainboard.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Device (SLPB)
 {
diff --git a/src/mainboard/intel/d945gclf/acpi/platform.asl b/src/mainboard/intel/d945gclf/acpi/platform.asl
index 01c7a9490665..64db2740949d 100644
--- a/src/mainboard/intel/d945gclf/acpi/platform.asl
+++ b/src/mainboard/intel/d945gclf/acpi/platform.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* The _PTS method (Prepare To Sleep) is called before the OS is
  * entering a sleep state. The sleep state number is passed in Arg0
diff --git a/src/mainboard/intel/d945gclf/acpi/superio.asl b/src/mainboard/intel/d945gclf/acpi/superio.asl
index 23e5fd5d266d..eadc3edc84b3 100644
--- a/src/mainboard/intel/d945gclf/acpi/superio.asl
+++ b/src/mainboard/intel/d945gclf/acpi/superio.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 
 Device (SIO1)
diff --git a/src/mainboard/intel/d945gclf/acpi_tables.c b/src/mainboard/intel/d945gclf/acpi_tables.c
index 69787a93ea41..f9c941d79e8f 100644
--- a/src/mainboard/intel/d945gclf/acpi_tables.c
+++ b/src/mainboard/intel/d945gclf/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <southbridge/intel/i82801gx/nvs.h>
 
diff --git a/src/mainboard/intel/d945gclf/cstates.c b/src/mainboard/intel/d945gclf/cstates.c
index ab75f495db84..10498e115029 100644
--- a/src/mainboard/intel/d945gclf/cstates.c
+++ b/src/mainboard/intel/d945gclf/cstates.c
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpigen.h>
 
diff --git a/src/mainboard/intel/d945gclf/dsdt.asl b/src/mainboard/intel/d945gclf/dsdt.asl
index c9d81f523d9e..9e3c03748ce4 100644
--- a/src/mainboard/intel/d945gclf/dsdt.asl
+++ b/src/mainboard/intel/d945gclf/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/d945gclf/early_init.c b/src/mainboard/intel/d945gclf/early_init.c
index 61fa10ccd90d..5f9a78532f8e 100644
--- a/src/mainboard/intel/d945gclf/early_init.c
+++ b/src/mainboard/intel/d945gclf/early_init.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 <bootblock_common.h>
 #include <superio/smsc/lpc47m15x/lpc47m15x.h>
diff --git a/src/mainboard/intel/d945gclf/gpio.c b/src/mainboard/intel/d945gclf/gpio.c
index 5c672afd8bde..02464f2ffa3e 100644
--- a/src/mainboard/intel/d945gclf/gpio.c
+++ b/src/mainboard/intel/d945gclf/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 <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/intel/d945gclf/hda_verb.c b/src/mainboard/intel/d945gclf/hda_verb.c
index 5d088790a500..0700c48e630f 100644
--- a/src/mainboard/intel/d945gclf/hda_verb.c
+++ b/src/mainboard/intel/d945gclf/hda_verb.c
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/intel/d945gclf/irq_tables.c b/src/mainboard/intel/d945gclf/irq_tables.c
index 9235d23f22c3..4820e6dcb96a 100644
--- a/src/mainboard/intel/d945gclf/irq_tables.c
+++ b/src/mainboard/intel/d945gclf/irq_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/pirq_routing.h>
 
diff --git a/src/mainboard/intel/d945gclf/mptable.c b/src/mainboard/intel/d945gclf/mptable.c
index 62d014733f37..13ebea4e0c1c 100644
--- a/src/mainboard/intel/d945gclf/mptable.c
+++ b/src/mainboard/intel/d945gclf/mptable.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <device/device.h>
 #include <arch/smp/mpspec.h>
diff --git a/src/mainboard/intel/dcp847ske/acpi/platform.asl b/src/mainboard/intel/dcp847ske/acpi/platform.asl
index 5cce4b499701..8f429c5b4ec8 100644
--- a/src/mainboard/intel/dcp847ske/acpi/platform.asl
+++ b/src/mainboard/intel/dcp847ske/acpi/platform.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /*
  * The _PTS method (Prepare To Sleep) is called before the OS is
diff --git a/src/mainboard/intel/dcp847ske/acpi/superio.asl b/src/mainboard/intel/dcp847ske/acpi/superio.asl
index abf7e244e5ad..519fe3b9b5c1 100644
--- a/src/mainboard/intel/dcp847ske/acpi/superio.asl
+++ b/src/mainboard/intel/dcp847ske/acpi/superio.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #undef SUPERIO_DEV
 #undef SUPERIO_PNP_BASE
diff --git a/src/mainboard/intel/dcp847ske/acpi_tables.c b/src/mainboard/intel/dcp847ske/acpi_tables.c
index c546640ba3a1..cd320ccb60f9 100644
--- a/src/mainboard/intel/dcp847ske/acpi_tables.c
+++ b/src/mainboard/intel/dcp847ske/acpi_tables.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <southbridge/intel/bd82x6x/nvs.h>
 #include "thermal.h"
diff --git a/src/mainboard/intel/dcp847ske/dsdt.asl b/src/mainboard/intel/dcp847ske/dsdt.asl
index faf012600ade..8f318b48175a 100644
--- a/src/mainboard/intel/dcp847ske/dsdt.asl
+++ b/src/mainboard/intel/dcp847ske/dsdt.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/dcp847ske/early_southbridge.c b/src/mainboard/intel/dcp847ske/early_southbridge.c
index f0b82f02f2fd..40b7f7ee8079 100644
--- a/src/mainboard/intel/dcp847ske/early_southbridge.c
+++ b/src/mainboard/intel/dcp847ske/early_southbridge.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <bootblock_common.h>
 #include <stdint.h>
diff --git a/src/mainboard/intel/dcp847ske/gpio.c b/src/mainboard/intel/dcp847ske/gpio.c
index ebfefdf3dc56..0f1c52127fef 100644
--- a/src/mainboard/intel/dcp847ske/gpio.c
+++ b/src/mainboard/intel/dcp847ske/gpio.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/intel/dcp847ske/hda_verb.c b/src/mainboard/intel/dcp847ske/hda_verb.c
index 1282140a2544..b5ffb81f949b 100644
--- a/src/mainboard/intel/dcp847ske/hda_verb.c
+++ b/src/mainboard/intel/dcp847ske/hda_verb.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/intel/dcp847ske/mainboard.c b/src/mainboard/intel/dcp847ske/mainboard.c
index 8c443682ef21..3f7a91e28db4 100644
--- a/src/mainboard/intel/dcp847ske/mainboard.c
+++ b/src/mainboard/intel/dcp847ske/mainboard.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <device/device.h>
diff --git a/src/mainboard/intel/dcp847ske/romstage.c b/src/mainboard/intel/dcp847ske/romstage.c
index 34698f97e223..613e73c36786 100644
--- a/src/mainboard/intel/dcp847ske/romstage.c
+++ b/src/mainboard/intel/dcp847ske/romstage.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <stdint.h>
 #include <northbridge/intel/sandybridge/sandybridge.h>
diff --git a/src/mainboard/intel/dcp847ske/smihandler.c b/src/mainboard/intel/dcp847ske/smihandler.c
index b8f4e765f0f6..a8b6560a143f 100644
--- a/src/mainboard/intel/dcp847ske/smihandler.c
+++ b/src/mainboard/intel/dcp847ske/smihandler.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <types.h>
 #include <cpu/x86/smm.h>
diff --git a/src/mainboard/intel/dcp847ske/superio.h b/src/mainboard/intel/dcp847ske/superio.h
index 31dc7d91cdf9..a2c96274e9d9 100644
--- a/src/mainboard/intel/dcp847ske/superio.h
+++ b/src/mainboard/intel/dcp847ske/superio.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef DCP847SKE_SUPERIO_H
 #define DCP847SKE_SUPERIO_H
diff --git a/src/mainboard/intel/dcp847ske/thermal.h b/src/mainboard/intel/dcp847ske/thermal.h
index 1b7e863d9c74..f2f11ebdf267 100644
--- a/src/mainboard/intel/dcp847ske/thermal.h
+++ b/src/mainboard/intel/dcp847ske/thermal.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef DCP847SKE_THERMAL_H
 #define DPC847SKE_THERMAL_H
diff --git a/src/mainboard/intel/dcp847ske/usb.h b/src/mainboard/intel/dcp847ske/usb.h
index 10110fc01028..d0bc9dc06076 100644
--- a/src/mainboard/intel/dcp847ske/usb.h
+++ b/src/mainboard/intel/dcp847ske/usb.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef DCP847SKE_USB_H
 #define DPC847SKE_USB_H
diff --git a/src/mainboard/intel/dg41wv/acpi/ich7_pci_irqs.asl b/src/mainboard/intel/dg41wv/acpi/ich7_pci_irqs.asl
index 3e37d9cd916a..dd2803fbc2da 100644
--- a/src/mainboard/intel/dg41wv/acpi/ich7_pci_irqs.asl
+++ b/src/mainboard/intel/dg41wv/acpi/ich7_pci_irqs.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. */
 
 /*
  * This is board specific information:
diff --git a/src/mainboard/intel/dg41wv/acpi/superio.asl b/src/mainboard/intel/dg41wv/acpi/superio.asl
index 8b4a3cb0cb65..169a739785c1 100644
--- a/src/mainboard/intel/dg41wv/acpi/superio.asl
+++ b/src/mainboard/intel/dg41wv/acpi/superio.asl
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #undef SUPERIO_DEV
 #undef SUPERIO_PNP_BASE
diff --git a/src/mainboard/intel/dg41wv/acpi_tables.c b/src/mainboard/intel/dg41wv/acpi_tables.c
index b0370c1ef4e9..7f47b3a7e2f0 100644
--- a/src/mainboard/intel/dg41wv/acpi_tables.c
+++ b/src/mainboard/intel/dg41wv/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <southbridge/intel/i82801gx/nvs.h>
 
diff --git a/src/mainboard/intel/dg41wv/cstates.c b/src/mainboard/intel/dg41wv/cstates.c
index 2a6d8ad81687..10498e115029 100644
--- a/src/mainboard/intel/dg41wv/cstates.c
+++ b/src/mainboard/intel/dg41wv/cstates.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/acpigen.h>
 
diff --git a/src/mainboard/intel/dg41wv/dsdt.asl b/src/mainboard/intel/dg41wv/dsdt.asl
index 612094926932..8880ba70767b 100644
--- a/src/mainboard/intel/dg41wv/dsdt.asl
+++ b/src/mainboard/intel/dg41wv/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/dg41wv/gpio.c b/src/mainboard/intel/dg41wv/gpio.c
index 643b6d4d2b5f..4e972a13545b 100644
--- a/src/mainboard/intel/dg41wv/gpio.c
+++ b/src/mainboard/intel/dg41wv/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 <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/intel/dg43gt/acpi/ich10_pci_irqs.asl b/src/mainboard/intel/dg43gt/acpi/ich10_pci_irqs.asl
index 8d12675cff68..86975809484f 100644
--- a/src/mainboard/intel/dg43gt/acpi/ich10_pci_irqs.asl
+++ b/src/mainboard/intel/dg43gt/acpi/ich10_pci_irqs.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. */
 
 /* This is board specific information:
  * IRQ routing for the 0:1e.0 PCI bridge of the ICH10
diff --git a/src/mainboard/intel/dg43gt/acpi/superio.asl b/src/mainboard/intel/dg43gt/acpi/superio.asl
index 2fc3d8eee8ef..0866176b1919 100644
--- a/src/mainboard/intel/dg43gt/acpi/superio.asl
+++ b/src/mainboard/intel/dg43gt/acpi/superio.asl
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #undef SUPERIO_DEV
 #undef SUPERIO_PNP_BASE
diff --git a/src/mainboard/intel/dg43gt/acpi_tables.c b/src/mainboard/intel/dg43gt/acpi_tables.c
index 7e45c750c231..faa4021b722c 100644
--- a/src/mainboard/intel/dg43gt/acpi_tables.c
+++ b/src/mainboard/intel/dg43gt/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <southbridge/intel/i82801jx/nvs.h>
 
diff --git a/src/mainboard/intel/dg43gt/cstates.c b/src/mainboard/intel/dg43gt/cstates.c
index ab75f495db84..10498e115029 100644
--- a/src/mainboard/intel/dg43gt/cstates.c
+++ b/src/mainboard/intel/dg43gt/cstates.c
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpigen.h>
 
diff --git a/src/mainboard/intel/dg43gt/dsdt.asl b/src/mainboard/intel/dg43gt/dsdt.asl
index 87696d5ddabe..cfc0b23dc249 100644
--- a/src/mainboard/intel/dg43gt/dsdt.asl
+++ b/src/mainboard/intel/dg43gt/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/dg43gt/gpio.c b/src/mainboard/intel/dg43gt/gpio.c
index fdb25b41aa54..4b2044e8648f 100644
--- a/src/mainboard/intel/dg43gt/gpio.c
+++ b/src/mainboard/intel/dg43gt/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 <southbridge/intel/common/gpio.h>
 
diff --git a/src/mainboard/intel/emeraldlake2/acpi/mainboard.asl b/src/mainboard/intel/emeraldlake2/acpi/mainboard.asl
index 91bfe1a09dea..d551e51be915 100644
--- a/src/mainboard/intel/emeraldlake2/acpi/mainboard.asl
+++ b/src/mainboard/intel/emeraldlake2/acpi/mainboard.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Device (PWRB)
 {
diff --git a/src/mainboard/intel/emeraldlake2/acpi/platform.asl b/src/mainboard/intel/emeraldlake2/acpi/platform.asl
index f7f187d66efd..a1c9a70d2e89 100644
--- a/src/mainboard/intel/emeraldlake2/acpi/platform.asl
+++ b/src/mainboard/intel/emeraldlake2/acpi/platform.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* The _PTS method (Prepare To Sleep) is called before the OS is
  * entering a sleep state. The sleep state number is passed in Arg0
diff --git a/src/mainboard/intel/emeraldlake2/acpi/superio.asl b/src/mainboard/intel/emeraldlake2/acpi/superio.asl
index 2d151969d472..f271f7b63b48 100644
--- a/src/mainboard/intel/emeraldlake2/acpi/superio.asl
+++ b/src/mainboard/intel/emeraldlake2/acpi/superio.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* Values should match those defined in devicetree.cb */
 
diff --git a/src/mainboard/intel/emeraldlake2/acpi/thermal.asl b/src/mainboard/intel/emeraldlake2/acpi/thermal.asl
index 62b5f5d10cbc..43dd80e83293 100644
--- a/src/mainboard/intel/emeraldlake2/acpi/thermal.asl
+++ b/src/mainboard/intel/emeraldlake2/acpi/thermal.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 // Thermal Zone
 
diff --git a/src/mainboard/intel/emeraldlake2/acpi_tables.c b/src/mainboard/intel/emeraldlake2/acpi_tables.c
index ebb9ba700bc2..8d54aa28da4e 100644
--- a/src/mainboard/intel/emeraldlake2/acpi_tables.c
+++ b/src/mainboard/intel/emeraldlake2/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <types.h>
 #include <arch/acpi.h>
diff --git a/src/mainboard/intel/emeraldlake2/chromeos.c b/src/mainboard/intel/emeraldlake2/chromeos.c
index 1f087cec434b..09fd057c9f32 100644
--- a/src/mainboard/intel/emeraldlake2/chromeos.c
+++ b/src/mainboard/intel/emeraldlake2/chromeos.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <bootmode.h>
 #include <boot/coreboot_tables.h>
diff --git a/src/mainboard/intel/emeraldlake2/dsdt.asl b/src/mainboard/intel/emeraldlake2/dsdt.asl
index f7e22a71d332..1533583530ac 100644
--- a/src/mainboard/intel/emeraldlake2/dsdt.asl
+++ b/src/mainboard/intel/emeraldlake2/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/emeraldlake2/early_init.c b/src/mainboard/intel/emeraldlake2/early_init.c
index 23229b83b145..0710871fc128 100644
--- a/src/mainboard/intel/emeraldlake2/early_init.c
+++ b/src/mainboard/intel/emeraldlake2/early_init.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 <bootblock_common.h>
 #include <stdint.h>
diff --git a/src/mainboard/intel/emeraldlake2/ec.c b/src/mainboard/intel/emeraldlake2/ec.c
index 009e90f973b7..c1d2046b45f8 100644
--- a/src/mainboard/intel/emeraldlake2/ec.c
+++ b/src/mainboard/intel/emeraldlake2/ec.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <types.h>
diff --git a/src/mainboard/intel/emeraldlake2/ec.h b/src/mainboard/intel/emeraldlake2/ec.h
index 3e44b584e681..b150fdf7ed57 100644
--- a/src/mainboard/intel/emeraldlake2/ec.h
+++ b/src/mainboard/intel/emeraldlake2/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 LUMPY_EC_H
 #define LUMPY_EC_H
diff --git a/src/mainboard/intel/emeraldlake2/gpio.c b/src/mainboard/intel/emeraldlake2/gpio.c
index e8f7b10f0b16..a9025edc3d02 100644
--- a/src/mainboard/intel/emeraldlake2/gpio.c
+++ b/src/mainboard/intel/emeraldlake2/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. */
 
 #ifndef EMERALDLAKE2_GPIO_H
 #define EMERALDLAKE2_GPIO_H
diff --git a/src/mainboard/intel/emeraldlake2/hda_verb.c b/src/mainboard/intel/emeraldlake2/hda_verb.c
index 11041770e4f0..18eedc23cda4 100644
--- a/src/mainboard/intel/emeraldlake2/hda_verb.c
+++ b/src/mainboard/intel/emeraldlake2/hda_verb.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/intel/emeraldlake2/mainboard.c b/src/mainboard/intel/emeraldlake2/mainboard.c
index 74c365bcaf5d..06e3a657385f 100644
--- a/src/mainboard/intel/emeraldlake2/mainboard.c
+++ b/src/mainboard/intel/emeraldlake2/mainboard.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <types.h>
 #include <device/device.h>
diff --git a/src/mainboard/intel/emeraldlake2/smihandler.c b/src/mainboard/intel/emeraldlake2/smihandler.c
index b267f20a7b25..19575351b916 100644
--- a/src/mainboard/intel/emeraldlake2/smihandler.c
+++ b/src/mainboard/intel/emeraldlake2/smihandler.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/io.h>
diff --git a/src/mainboard/intel/emeraldlake2/thermal.h b/src/mainboard/intel/emeraldlake2/thermal.h
index 2fa579816ea6..974c0162e77e 100644
--- a/src/mainboard/intel/emeraldlake2/thermal.h
+++ b/src/mainboard/intel/emeraldlake2/thermal.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef EMERALDLAKE2_THERMAL_H
 #define EMERALDLAKE2_THERMAL_H
diff --git a/src/mainboard/intel/galileo/acpi_tables.c b/src/mainboard/intel/galileo/acpi_tables.c
index 80f4222b0e24..5f5e1c22626d 100644
--- a/src/mainboard/intel/galileo/acpi_tables.c
+++ b/src/mainboard/intel/galileo/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <string.h>
 #include <soc/acpi.h>
diff --git a/src/mainboard/intel/galileo/dsdt.asl b/src/mainboard/intel/galileo/dsdt.asl
index b69ed786523d..2c9e9c656cba 100644
--- a/src/mainboard/intel/galileo/dsdt.asl
+++ b/src/mainboard/intel/galileo/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/galileo/gen1.h b/src/mainboard/intel/galileo/gen1.h
index fbe5edece5e6..f8ceb98bc454 100644
--- a/src/mainboard/intel/galileo/gen1.h
+++ b/src/mainboard/intel/galileo/gen1.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. */
 
 /* PCIe reset pin */
 #define GEN1_PCI_RESET_RESUMEWELL_GPIO		3
diff --git a/src/mainboard/intel/galileo/gen2.h b/src/mainboard/intel/galileo/gen2.h
index 30abe1ee94b8..1eed023d0fee 100644
--- a/src/mainboard/intel/galileo/gen2.h
+++ b/src/mainboard/intel/galileo/gen2.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. */
 
 /* PCIe reset pin */
 #define GEN2_PCI_RESET_RESUMEWELL_GPIO		0
diff --git a/src/mainboard/intel/galileo/gpio.c b/src/mainboard/intel/galileo/gpio.c
index c29769e5046a..f688cfaac066 100644
--- a/src/mainboard/intel/galileo/gpio.c
+++ b/src/mainboard/intel/galileo/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 <console/console.h>
 #include <soc/car.h>
diff --git a/src/mainboard/intel/galileo/mainboard.c b/src/mainboard/intel/galileo/mainboard.c
index 234a154b5887..ef9997abdfef 100644
--- a/src/mainboard/intel/galileo/mainboard.c
+++ b/src/mainboard/intel/galileo/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 <smbios.h>
 
diff --git a/src/mainboard/intel/galileo/reg_access.c b/src/mainboard/intel/galileo/reg_access.c
index c78ef8e2acc6..b20d84922366 100644
--- a/src/mainboard/intel/galileo/reg_access.c
+++ b/src/mainboard/intel/galileo/reg_access.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. */
 
 #define __SIMPLE_DEVICE__
 
diff --git a/src/mainboard/intel/galileo/reg_access.h b/src/mainboard/intel/galileo/reg_access.h
index 53ffc66265fc..f8f322716fd6 100644
--- a/src/mainboard/intel/galileo/reg_access.h
+++ b/src/mainboard/intel/galileo/reg_access.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 _GALILEO_REG_ACCESS_H_
 #define _GALILEO_REG_ACCESS_H_
diff --git a/src/mainboard/intel/galileo/sd.c b/src/mainboard/intel/galileo/sd.c
index f832876e2f13..694b2a44c5ac 100644
--- a/src/mainboard/intel/galileo/sd.c
+++ b/src/mainboard/intel/galileo/sd.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 <commonlib/sdhci.h>
 #include <commonlib/storage.h>
diff --git a/src/mainboard/intel/glkrvp/boardid.c b/src/mainboard/intel/glkrvp/boardid.c
index 3b377f21dde5..b9c7cc6c3769 100644
--- a/src/mainboard/intel/glkrvp/boardid.c
+++ b/src/mainboard/intel/glkrvp/boardid.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/intel/glkrvp/bootblock.c b/src/mainboard/intel/glkrvp/bootblock.c
index fe2513ba0542..99d8202e43d5 100644
--- a/src/mainboard/intel/glkrvp/bootblock.c
+++ b/src/mainboard/intel/glkrvp/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/intel/glkrvp/chromeos.c b/src/mainboard/intel/glkrvp/chromeos.c
index 2e8d85af38f2..f157bbcdd084 100644
--- a/src/mainboard/intel/glkrvp/chromeos.c
+++ b/src/mainboard/intel/glkrvp/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 <baseboard/variants.h>
 #include <boot/coreboot_tables.h>
diff --git a/src/mainboard/intel/glkrvp/dsdt.asl b/src/mainboard/intel/glkrvp/dsdt.asl
index 294e350a71ce..11313f9336fe 100644
--- a/src/mainboard/intel/glkrvp/dsdt.asl
+++ b/src/mainboard/intel/glkrvp/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 <variant/ec.h>
 #include <variant/gpio.h>
diff --git a/src/mainboard/intel/glkrvp/ec.c b/src/mainboard/intel/glkrvp/ec.c
index 978239752625..cdafadb7caa0 100644
--- a/src/mainboard/intel/glkrvp/ec.c
+++ b/src/mainboard/intel/glkrvp/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 <arch/io.h>
diff --git a/src/mainboard/intel/glkrvp/mainboard.c b/src/mainboard/intel/glkrvp/mainboard.c
index 0670afebad4d..d8ba962d47c0 100644
--- a/src/mainboard/intel/glkrvp/mainboard.c
+++ b/src/mainboard/intel/glkrvp/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 <arch/acpi.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/glkrvp/romstage.c b/src/mainboard/intel/glkrvp/romstage.c
index 5420a1618355..5bf897c7c781 100644
--- a/src/mainboard/intel/glkrvp/romstage.c
+++ b/src/mainboard/intel/glkrvp/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 #include <string.h>
 #include <baseboard/variants.h>
 #include <boardid.h>
diff --git a/src/mainboard/intel/glkrvp/smihandler.c b/src/mainboard/intel/glkrvp/smihandler.c
index a08e17cdb86d..73bf2ba0d3a0 100644
--- a/src/mainboard/intel/glkrvp/smihandler.c
+++ b/src/mainboard/intel/glkrvp/smihandler.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/glkrvp/touchpad.asl b/src/mainboard/intel/glkrvp/touchpad.asl
index fe7e9e5f8bd4..f39453bd1d30 100644
--- a/src/mainboard/intel/glkrvp/touchpad.asl
+++ b/src/mainboard/intel/glkrvp/touchpad.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. */
 	Scope (\_SB.PCI0.I2C4)
 	{
 		Device (TPAD)
diff --git a/src/mainboard/intel/glkrvp/touchpanel.asl b/src/mainboard/intel/glkrvp/touchpanel.asl
index 53b6b68b77bf..3dc6c030efbd 100644
--- a/src/mainboard/intel/glkrvp/touchpanel.asl
+++ b/src/mainboard/intel/glkrvp/touchpanel.asl
@@ -1,17 +1,6 @@
 
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Scope(\_SB.PCI0.I2C7) {
 // Touch Panels on I2C7
diff --git a/src/mainboard/intel/glkrvp/variants/baseboard/boardid.c b/src/mainboard/intel/glkrvp/variants/baseboard/boardid.c
index e05cd5d5fa19..608d7918549e 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/boardid.c
+++ b/src/mainboard/intel/glkrvp/variants/baseboard/boardid.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/intel/glkrvp/variants/baseboard/gpio.c b/src/mainboard/intel/glkrvp/variants/baseboard/gpio.c
index a08381d8a940..2c0073312f1b 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/gpio.c
+++ b/src/mainboard/intel/glkrvp/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 <baseboard/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/acpi/dptf.asl b/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/acpi/dptf.asl
index 8d18f92cec92..befca1e2edd0 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/acpi/dptf.asl
+++ b/src/mainboard/intel/glkrvp/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	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/ec.h b/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/ec.h
index f3c1fb9cbafa..42261cb766e2 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/ec.h
+++ b/src/mainboard/intel/glkrvp/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/intel/glkrvp/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/gpio.h
index 440b71bb7a34..a45f61e29c5e 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/gpio.h
+++ b/src/mainboard/intel/glkrvp/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/intel/glkrvp/variants/baseboard/include/baseboard/variants.h b/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/variants.h
index 0641a84555b1..07f455f6ca29 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/intel/glkrvp/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/intel/glkrvp/variants/baseboard/memory.c b/src/mainboard/intel/glkrvp/variants/baseboard/memory.c
index d1403e50050f..9218fb2cf969 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/memory.c
+++ b/src/mainboard/intel/glkrvp/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 <gpio.h>
diff --git a/src/mainboard/intel/glkrvp/variants/baseboard/nhlt.c b/src/mainboard/intel/glkrvp/variants/baseboard/nhlt.c
index a5929d3db086..b738a34c75c2 100644
--- a/src/mainboard/intel/glkrvp/variants/baseboard/nhlt.c
+++ b/src/mainboard/intel/glkrvp/variants/baseboard/nhlt.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/intel/glkrvp/variants/glkrvp/include/variant/acpi/dptf.asl b/src/mainboard/intel/glkrvp/variants/glkrvp/include/variant/acpi/dptf.asl
index 2e6e9feadf8b..231ff1bb720b 100644
--- a/src/mainboard/intel/glkrvp/variants/glkrvp/include/variant/acpi/dptf.asl
+++ b/src/mainboard/intel/glkrvp/variants/glkrvp/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/intel/glkrvp/variants/glkrvp/include/variant/ec.h b/src/mainboard/intel/glkrvp/variants/glkrvp/include/variant/ec.h
index 87f03b1ece00..52e5f622c1b7 100644
--- a/src/mainboard/intel/glkrvp/variants/glkrvp/include/variant/ec.h
+++ b/src/mainboard/intel/glkrvp/variants/glkrvp/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 MAINBOARD_EC_H
 #define MAINBOARD_EC_H
diff --git a/src/mainboard/intel/glkrvp/variants/glkrvp/include/variant/gpio.h b/src/mainboard/intel/glkrvp/variants/glkrvp/include/variant/gpio.h
index 3777fed07b18..e6df66b293d8 100644
--- a/src/mainboard/intel/glkrvp/variants/glkrvp/include/variant/gpio.h
+++ b/src/mainboard/intel/glkrvp/variants/glkrvp/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 MAINBOARD_GPIO_H
 #define MAINBOARD_GPIO_H
diff --git a/src/mainboard/intel/harcuvar/acpi/mainboard.asl b/src/mainboard/intel/harcuvar/acpi/mainboard.asl
index 8d3f505cc6ed..afbadd37a645 100644
--- a/src/mainboard/intel/harcuvar/acpi/mainboard.asl
+++ b/src/mainboard/intel/harcuvar/acpi/mainboard.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Scope (\_SB)
 {
diff --git a/src/mainboard/intel/harcuvar/acpi/mainboard_pci_irqs.asl b/src/mainboard/intel/harcuvar/acpi/mainboard_pci_irqs.asl
index b7254c91bac4..2ea7a949c664 100644
--- a/src/mainboard/intel/harcuvar/acpi/mainboard_pci_irqs.asl
+++ b/src/mainboard/intel/harcuvar/acpi/mainboard_pci_irqs.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* This is board specific information: IRQ routing */
 
diff --git a/src/mainboard/intel/harcuvar/acpi/platform.asl b/src/mainboard/intel/harcuvar/acpi/platform.asl
index a1a1d214b909..b8d04f9ac0f4 100644
--- a/src/mainboard/intel/harcuvar/acpi/platform.asl
+++ b/src/mainboard/intel/harcuvar/acpi/platform.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* The _PTS method (Prepare To Sleep) is called before the OS is
  * entering a sleep state. The sleep state number is passed in Arg0
diff --git a/src/mainboard/intel/harcuvar/acpi/thermal.asl b/src/mainboard/intel/harcuvar/acpi/thermal.asl
index 8244266532bd..784abc33fabf 100644
--- a/src/mainboard/intel/harcuvar/acpi/thermal.asl
+++ b/src/mainboard/intel/harcuvar/acpi/thermal.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
  // Thermal Zone
 
diff --git a/src/mainboard/intel/harcuvar/acpi_tables.c b/src/mainboard/intel/harcuvar/acpi_tables.c
index 551d51a47d00..813bad943f4f 100644
--- a/src/mainboard/intel/harcuvar/acpi_tables.c
+++ b/src/mainboard/intel/harcuvar/acpi_tables.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <types.h>
 #include <arch/acpi.h>
diff --git a/src/mainboard/intel/harcuvar/boardid.c b/src/mainboard/intel/harcuvar/boardid.c
index 7ea9f8775985..8f91b0c61d19 100644
--- a/src/mainboard/intel/harcuvar/boardid.c
+++ b/src/mainboard/intel/harcuvar/boardid.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 
diff --git a/src/mainboard/intel/harcuvar/dsdt.asl b/src/mainboard/intel/harcuvar/dsdt.asl
index 41e9b5d9577c..8c6c00d52183 100644
--- a/src/mainboard/intel/harcuvar/dsdt.asl
+++ b/src/mainboard/intel/harcuvar/dsdt.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/harcuvar/emmc.h b/src/mainboard/intel/harcuvar/emmc.h
index cc51b7c4f822..51c3ee151846 100644
--- a/src/mainboard/intel/harcuvar/emmc.h
+++ b/src/mainboard/intel/harcuvar/emmc.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef _MAINBOARD_EMMC_H
 #define _MAINBOARD_EMMC_H
diff --git a/src/mainboard/intel/harcuvar/fadt.c b/src/mainboard/intel/harcuvar/fadt.c
index bb4b31eb4650..8b38b3434cdb 100644
--- a/src/mainboard/intel/harcuvar/fadt.c
+++ b/src/mainboard/intel/harcuvar/fadt.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 
diff --git a/src/mainboard/intel/harcuvar/gpio.h b/src/mainboard/intel/harcuvar/gpio.h
index db4cc5c1d5ae..a973dd164e69 100644
--- a/src/mainboard/intel/harcuvar/gpio.h
+++ b/src/mainboard/intel/harcuvar/gpio.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef _MAINBOARD_GPIO_H
 #define _MAINBOARD_GPIO_H
diff --git a/src/mainboard/intel/harcuvar/harcuvar_boardid.h b/src/mainboard/intel/harcuvar/harcuvar_boardid.h
index d85b6d90c190..28f28d9135be 100644
--- a/src/mainboard/intel/harcuvar/harcuvar_boardid.h
+++ b/src/mainboard/intel/harcuvar/harcuvar_boardid.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef HARCUVAR_MAINBOARD_BOARD_H
 #define HARCUVAR_MAINBOARD_BOARD_H
diff --git a/src/mainboard/intel/harcuvar/hsio.c b/src/mainboard/intel/harcuvar/hsio.c
index 0c1861ce1b48..d786b8fb2efc 100644
--- a/src/mainboard/intel/harcuvar/hsio.c
+++ b/src/mainboard/intel/harcuvar/hsio.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 <harcuvar_boardid.h>
 #include <hsio.h>
diff --git a/src/mainboard/intel/harcuvar/hsio.h b/src/mainboard/intel/harcuvar/hsio.h
index f32fd3fd833a..e8bfd2d14de3 100644
--- a/src/mainboard/intel/harcuvar/hsio.h
+++ b/src/mainboard/intel/harcuvar/hsio.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef _MAINBOARD_HSIO_H
 #define _MAINBOARD_HSIO_H
diff --git a/src/mainboard/intel/harcuvar/ramstage.c b/src/mainboard/intel/harcuvar/ramstage.c
index 92fcc7d096f4..18d53e866c5c 100644
--- a/src/mainboard/intel/harcuvar/ramstage.c
+++ b/src/mainboard/intel/harcuvar/ramstage.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <fsp/api.h>
diff --git a/src/mainboard/intel/harcuvar/spd/spd.c b/src/mainboard/intel/harcuvar/spd/spd.c
index ca1cc2b28345..81b312fe2bb8 100644
--- a/src/mainboard/intel/harcuvar/spd/spd.c
+++ b/src/mainboard/intel/harcuvar/spd/spd.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <cbfs.h>
 #include <console/console.h>
diff --git a/src/mainboard/intel/harcuvar/spd/spd.h b/src/mainboard/intel/harcuvar/spd/spd.h
index 1de7bed57db6..42d902888c37 100644
--- a/src/mainboard/intel/harcuvar/spd/spd.h
+++ b/src/mainboard/intel/harcuvar/spd/spd.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef MAINBOARD_SPD_H
 #define MAINBOARD_SPD_H
diff --git a/src/mainboard/intel/icelake_rvp/acpi/mainboard.asl b/src/mainboard/intel/icelake_rvp/acpi/mainboard.asl
index 521dfcb3cf26..84b59cb78e15 100644
--- a/src/mainboard/intel/icelake_rvp/acpi/mainboard.asl
+++ b/src/mainboard/intel/icelake_rvp/acpi/mainboard.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #if CONFIG(EC_GOOGLE_CHROMEEC)
 Scope (\_SB)
diff --git a/src/mainboard/intel/icelake_rvp/board_id.c b/src/mainboard/intel/icelake_rvp/board_id.c
index c284df1f775d..9f39ff127329 100644
--- a/src/mainboard/intel/icelake_rvp/board_id.c
+++ b/src/mainboard/intel/icelake_rvp/board_id.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 "board_id.h"
 #include <boardid.h>
 #include <ec/acpi/ec.h>
diff --git a/src/mainboard/intel/icelake_rvp/board_id.h b/src/mainboard/intel/icelake_rvp/board_id.h
index 6629244d92e8..b7d3d2eef527 100644
--- a/src/mainboard/intel/icelake_rvp/board_id.h
+++ b/src/mainboard/intel/icelake_rvp/board_id.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_BOARD_ID_H_
 #define _MAINBOARD_BOARD_ID_H_
diff --git a/src/mainboard/intel/icelake_rvp/bootblock.c b/src/mainboard/intel/icelake_rvp/bootblock.c
index 9022af8e8cd4..8c85b825409e 100644
--- a/src/mainboard/intel/icelake_rvp/bootblock.c
+++ b/src/mainboard/intel/icelake_rvp/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/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/icelake_rvp/chromeos.c b/src/mainboard/intel/icelake_rvp/chromeos.c
index e72333262a20..a2181213d96e 100644
--- a/src/mainboard/intel/icelake_rvp/chromeos.c
+++ b/src/mainboard/intel/icelake_rvp/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/gpio.h>
diff --git a/src/mainboard/intel/icelake_rvp/dsdt.asl b/src/mainboard/intel/icelake_rvp/dsdt.asl
index 1a425f71d585..b7a012fbba2b 100644
--- a/src/mainboard/intel/icelake_rvp/dsdt.asl
+++ b/src/mainboard/intel/icelake_rvp/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 <baseboard/ec.h>
diff --git a/src/mainboard/intel/icelake_rvp/hda_verb.c b/src/mainboard/intel/icelake_rvp/hda_verb.c
index 2a2a31d7d949..3665bb6dffbd 100644
--- a/src/mainboard/intel/icelake_rvp/hda_verb.c
+++ b/src/mainboard/intel/icelake_rvp/hda_verb.c
@@ -1,14 +1,3 @@
-/*
- * 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/hda_verb.h>
diff --git a/src/mainboard/intel/icelake_rvp/mainboard.c b/src/mainboard/intel/icelake_rvp/mainboard.c
index 2f6595f15b06..41ef680d7993 100644
--- a/src/mainboard/intel/icelake_rvp/mainboard.c
+++ b/src/mainboard/intel/icelake_rvp/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 <arch/acpi.h>
 #include <baseboard/gpio.h>
diff --git a/src/mainboard/intel/icelake_rvp/romstage_fsp_params.c b/src/mainboard/intel/icelake_rvp/romstage_fsp_params.c
index 833dcb9a1a72..f336aa7059d6 100644
--- a/src/mainboard/intel/icelake_rvp/romstage_fsp_params.c
+++ b/src/mainboard/intel/icelake_rvp/romstage_fsp_params.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 <console/console.h>
 #include <fsp/api.h>
diff --git a/src/mainboard/intel/icelake_rvp/spd/spd.h b/src/mainboard/intel/icelake_rvp/spd/spd.h
index fc5686004aca..9a348af09e2d 100644
--- a/src/mainboard/intel/icelake_rvp/spd/spd.h
+++ b/src/mainboard/intel/icelake_rvp/spd/spd.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_SPD_H
 #define MAINBOARD_SPD_H
diff --git a/src/mainboard/intel/icelake_rvp/spd/spd_util.c b/src/mainboard/intel/icelake_rvp/spd/spd_util.c
index 36ba7d09c545..8f4d178e8a77 100644
--- a/src/mainboard/intel/icelake_rvp/spd/spd_util.c
+++ b/src/mainboard/intel/icelake_rvp/spd/spd_util.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/cpu.h>
 #include <intelblocks/mp_init.h>
diff --git a/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/ec.h b/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/ec.h
index 60ae713c5d64..edf5febcc496 100644
--- a/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/ec.h
+++ b/src/mainboard/intel/icelake_rvp/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/intel/icelake_rvp/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/gpio.h
index 8d56b32f80dc..cbe8b0f28802 100644
--- a/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/gpio.h
+++ b/src/mainboard/intel/icelake_rvp/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/intel/icelake_rvp/variants/baseboard/include/baseboard/hda_verb.h b/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/hda_verb.h
index d776f4c1b338..3131debf58d4 100644
--- a/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/hda_verb.h
+++ b/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/hda_verb.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 HDA_VERB_H
 #define HDA_VERB_H
diff --git a/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/variants.h b/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/variants.h
index 6beef66559bd..56a151937bb9 100644
--- a/src/mainboard/intel/icelake_rvp/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/intel/icelake_rvp/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/intel/icelake_rvp/variants/icl_u/gpio.c b/src/mainboard/intel/icelake_rvp/variants/icl_u/gpio.c
index be0cf111d9de..19ae89ab2274 100644
--- a/src/mainboard/intel/icelake_rvp/variants/icl_u/gpio.c
+++ b/src/mainboard/intel/icelake_rvp/variants/icl_u/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/intel/icelake_rvp/variants/icl_y/gpio.c b/src/mainboard/intel/icelake_rvp/variants/icl_y/gpio.c
index be0cf111d9de..19ae89ab2274 100644
--- a/src/mainboard/intel/icelake_rvp/variants/icl_y/gpio.c
+++ b/src/mainboard/intel/icelake_rvp/variants/icl_y/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/intel/jasperlake_rvp/acpi/mainboard.asl b/src/mainboard/intel/jasperlake_rvp/acpi/mainboard.asl
index 521dfcb3cf26..84b59cb78e15 100644
--- a/src/mainboard/intel/jasperlake_rvp/acpi/mainboard.asl
+++ b/src/mainboard/intel/jasperlake_rvp/acpi/mainboard.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #if CONFIG(EC_GOOGLE_CHROMEEC)
 Scope (\_SB)
diff --git a/src/mainboard/intel/jasperlake_rvp/board_id.c b/src/mainboard/intel/jasperlake_rvp/board_id.c
index 09d73cb9c371..7444feafb5e8 100644
--- a/src/mainboard/intel/jasperlake_rvp/board_id.c
+++ b/src/mainboard/intel/jasperlake_rvp/board_id.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2020 The coreboot project Authors
- *
- * This program is free software; 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 <boardid.h>
 #include <ec/acpi/ec.h>
diff --git a/src/mainboard/intel/jasperlake_rvp/board_id.h b/src/mainboard/intel/jasperlake_rvp/board_id.h
index 86923b9b1285..bb4aab7d35a0 100644
--- a/src/mainboard/intel/jasperlake_rvp/board_id.h
+++ b/src/mainboard/intel/jasperlake_rvp/board_id.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_COMMON_BOARD_ID_H_
 #define _MAINBOARD_COMMON_BOARD_ID_H_
diff --git a/src/mainboard/intel/jasperlake_rvp/bootblock.c b/src/mainboard/intel/jasperlake_rvp/bootblock.c
index 9022af8e8cd4..8c85b825409e 100644
--- a/src/mainboard/intel/jasperlake_rvp/bootblock.c
+++ b/src/mainboard/intel/jasperlake_rvp/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/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/jasperlake_rvp/chromeos.c b/src/mainboard/intel/jasperlake_rvp/chromeos.c
index bee7eba66624..52da99cde012 100644
--- a/src/mainboard/intel/jasperlake_rvp/chromeos.c
+++ b/src/mainboard/intel/jasperlake_rvp/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 <baseboard/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/jasperlake_rvp/dsdt.asl b/src/mainboard/intel/jasperlake_rvp/dsdt.asl
index ed59af6a96d6..c40acf29efea 100644
--- a/src/mainboard/intel/jasperlake_rvp/dsdt.asl
+++ b/src/mainboard/intel/jasperlake_rvp/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 <baseboard/ec.h>
diff --git a/src/mainboard/intel/jasperlake_rvp/mainboard.c b/src/mainboard/intel/jasperlake_rvp/mainboard.c
index b765eecc174d..733bc5131f28 100644
--- a/src/mainboard/intel/jasperlake_rvp/mainboard.c
+++ b/src/mainboard/intel/jasperlake_rvp/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/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/jasperlake_rvp/romstage_fsp_params.c b/src/mainboard/intel/jasperlake_rvp/romstage_fsp_params.c
index f185628df126..d46c5fa9b6b3 100644
--- a/src/mainboard/intel/jasperlake_rvp/romstage_fsp_params.c
+++ b/src/mainboard/intel/jasperlake_rvp/romstage_fsp_params.c
@@ -1,17 +1,6 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2020 The coreboot project Authors
- *
- * This program is free software; 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>
 #include <soc/meminit.h>
diff --git a/src/mainboard/intel/jasperlake_rvp/spd/spd.h b/src/mainboard/intel/jasperlake_rvp/spd/spd.h
index dcc0144a0bcf..9f746200246f 100644
--- a/src/mainboard/intel/jasperlake_rvp/spd/spd.h
+++ b/src/mainboard/intel/jasperlake_rvp/spd/spd.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_SPD_H
 #define MAINBOARD_SPD_H
diff --git a/src/mainboard/intel/jasperlake_rvp/spd/spd_util.c b/src/mainboard/intel/jasperlake_rvp/spd/spd_util.c
index 92d183dbc988..bc891fbab7b8 100644
--- a/src/mainboard/intel/jasperlake_rvp/spd/spd_util.c
+++ b/src/mainboard/intel/jasperlake_rvp/spd/spd_util.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/cpu.h>
 #include <stdint.h>
diff --git a/src/mainboard/intel/jasperlake_rvp/variants/baseboard/include/baseboard/ec.h b/src/mainboard/intel/jasperlake_rvp/variants/baseboard/include/baseboard/ec.h
index 60ae713c5d64..edf5febcc496 100644
--- a/src/mainboard/intel/jasperlake_rvp/variants/baseboard/include/baseboard/ec.h
+++ b/src/mainboard/intel/jasperlake_rvp/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/intel/jasperlake_rvp/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/intel/jasperlake_rvp/variants/baseboard/include/baseboard/gpio.h
index 8d56b32f80dc..cbe8b0f28802 100644
--- a/src/mainboard/intel/jasperlake_rvp/variants/baseboard/include/baseboard/gpio.h
+++ b/src/mainboard/intel/jasperlake_rvp/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/intel/jasperlake_rvp/variants/baseboard/include/baseboard/variants.h b/src/mainboard/intel/jasperlake_rvp/variants/baseboard/include/baseboard/variants.h
index 2fe763128131..595e9c0c5c0e 100644
--- a/src/mainboard/intel/jasperlake_rvp/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/intel/jasperlake_rvp/variants/baseboard/include/baseboard/variants.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2020 The coreboot project Authors
- *
- * This program is free software; 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/intel/jasperlake_rvp/variants/jslrvp/gpio.c b/src/mainboard/intel/jasperlake_rvp/variants/jslrvp/gpio.c
index 91292b8c400f..e094966ac54e 100644
--- a/src/mainboard/intel/jasperlake_rvp/variants/jslrvp/gpio.c
+++ b/src/mainboard/intel/jasperlake_rvp/variants/jslrvp/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/intel/jasperlake_rvp/variants/jslrvp/memory.c b/src/mainboard/intel/jasperlake_rvp/variants/jslrvp/memory.c
index 4de66b392999..223e98a13439 100644
--- a/src/mainboard/intel/jasperlake_rvp/variants/jslrvp/memory.c
+++ b/src/mainboard/intel/jasperlake_rvp/variants/jslrvp/memory.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2020 The coreboot project Authors
- *
- * This program is free software; 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/intel/kblrvp/acpi/dptf.asl b/src/mainboard/intel/kblrvp/acpi/dptf.asl
index 0e19caab6d4b..ea3b942ce1cd 100644
--- a/src/mainboard/intel/kblrvp/acpi/dptf.asl
+++ b/src/mainboard/intel/kblrvp/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        80
 #define DPTF_CPU_CRITICAL       90
diff --git a/src/mainboard/intel/kblrvp/acpi/ec.asl b/src/mainboard/intel/kblrvp/acpi/ec.asl
index eb9eb0eb7cd0..8ac51220e0c2 100644
--- a/src/mainboard/intel/kblrvp/acpi/ec.asl
+++ b/src/mainboard/intel/kblrvp/acpi/ec.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* mainboard configuration */
 #include "../ec.h"
diff --git a/src/mainboard/intel/kblrvp/acpi/ipu_mainboard.asl b/src/mainboard/intel/kblrvp/acpi/ipu_mainboard.asl
index a498246e6560..1475bf647e4b 100644
--- a/src/mainboard/intel/kblrvp/acpi/ipu_mainboard.asl
+++ b/src/mainboard/intel/kblrvp/acpi/ipu_mainboard.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Scope (\_SB.PCI0.CIO2)
 {
diff --git a/src/mainboard/intel/kblrvp/acpi/mainboard.asl b/src/mainboard/intel/kblrvp/acpi/mainboard.asl
index 521dfcb3cf26..84b59cb78e15 100644
--- a/src/mainboard/intel/kblrvp/acpi/mainboard.asl
+++ b/src/mainboard/intel/kblrvp/acpi/mainboard.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #if CONFIG(EC_GOOGLE_CHROMEEC)
 Scope (\_SB)
diff --git a/src/mainboard/intel/kblrvp/acpi/mipi_camera.asl b/src/mainboard/intel/kblrvp/acpi/mipi_camera.asl
index c1c9bbb12749..23c99a84696f 100644
--- a/src/mainboard/intel/kblrvp/acpi/mipi_camera.asl
+++ b/src/mainboard/intel/kblrvp/acpi/mipi_camera.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. */
 
 Scope (\_SB.PCI0.I2C2)
 {
diff --git a/src/mainboard/intel/kblrvp/acpi/superio.asl b/src/mainboard/intel/kblrvp/acpi/superio.asl
index f5178b3ed0ca..6e83a0a2bde1 100644
--- a/src/mainboard/intel/kblrvp/acpi/superio.asl
+++ b/src/mainboard/intel/kblrvp/acpi/superio.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* mainboard configuration */
 #include "../ec.h"
diff --git a/src/mainboard/intel/kblrvp/board_id.c b/src/mainboard/intel/kblrvp/board_id.c
index 9d87a3eda10c..bb770d650f18 100644
--- a/src/mainboard/intel/kblrvp/board_id.c
+++ b/src/mainboard/intel/kblrvp/board_id.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 "board_id.h"
 #include <ec/acpi/ec.h>
 #include <stdint.h>
diff --git a/src/mainboard/intel/kblrvp/board_id.h b/src/mainboard/intel/kblrvp/board_id.h
index db9d2ba9cf1b..2dfae5d08e2b 100644
--- a/src/mainboard/intel/kblrvp/board_id.h
+++ b/src/mainboard/intel/kblrvp/board_id.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_BOARD_ID_H_
 #define _MAINBOARD_BOARD_ID_H_
diff --git a/src/mainboard/intel/kblrvp/bootblock.c b/src/mainboard/intel/kblrvp/bootblock.c
index 6d1885ecb475..30e517494585 100644
--- a/src/mainboard/intel/kblrvp/bootblock.c
+++ b/src/mainboard/intel/kblrvp/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 <bootblock_common.h>
 #include <soc/gpio.h>
diff --git a/src/mainboard/intel/kblrvp/chromeos.c b/src/mainboard/intel/kblrvp/chromeos.c
index c8629071708b..487efa732de3 100644
--- a/src/mainboard/intel/kblrvp/chromeos.c
+++ b/src/mainboard/intel/kblrvp/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 <boot/coreboot_tables.h>
 #include <device/device.h>
diff --git a/src/mainboard/intel/kblrvp/dsdt.asl b/src/mainboard/intel/kblrvp/dsdt.asl
index 97fe66892b77..91a5c2fedc85 100644
--- a/src/mainboard/intel/kblrvp/dsdt.asl
+++ b/src/mainboard/intel/kblrvp/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/kblrvp/ec.c b/src/mainboard/intel/kblrvp/ec.c
index eb5456a2311a..52819688a14c 100644
--- a/src/mainboard/intel/kblrvp/ec.c
+++ b/src/mainboard/intel/kblrvp/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 <console/console.h>
diff --git a/src/mainboard/intel/kblrvp/ec.h b/src/mainboard/intel/kblrvp/ec.h
index dcdaae404ec0..0f46319d05ce 100644
--- a/src/mainboard/intel/kblrvp/ec.h
+++ b/src/mainboard/intel/kblrvp/ec.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef MAINBOARD_EC_H
 #define MAINBOARD_EC_H
diff --git a/src/mainboard/intel/kblrvp/hda_verb.c b/src/mainboard/intel/kblrvp/hda_verb.c
index 50468cd135f1..8335c5c57036 100644
--- a/src/mainboard/intel/kblrvp/hda_verb.c
+++ b/src/mainboard/intel/kblrvp/hda_verb.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #if !CONFIG(BOARD_INTEL_KBLRVP8)
 #include "variant/hda_verb.h"
diff --git a/src/mainboard/intel/kblrvp/mainboard.c b/src/mainboard/intel/kblrvp/mainboard.c
index 7e2df109ea6d..639ad0e21bd2 100644
--- a/src/mainboard/intel/kblrvp/mainboard.c
+++ b/src/mainboard/intel/kblrvp/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 <arch/acpi.h>
 #include <device/device.h>
diff --git a/src/mainboard/intel/kblrvp/ramstage.c b/src/mainboard/intel/kblrvp/ramstage.c
index f2769137255a..cb58897408b8 100644
--- a/src/mainboard/intel/kblrvp/ramstage.c
+++ b/src/mainboard/intel/kblrvp/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 <bootstate.h>
 #include <console/console.h>
diff --git a/src/mainboard/intel/kblrvp/romstage.c b/src/mainboard/intel/kblrvp/romstage.c
index 35ba6ed3d201..f9183d1853eb 100644
--- a/src/mainboard/intel/kblrvp/romstage.c
+++ b/src/mainboard/intel/kblrvp/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <cbfs.h>
 #include <console/console.h>
diff --git a/src/mainboard/intel/kblrvp/smihandler.c b/src/mainboard/intel/kblrvp/smihandler.c
index 1673cd0df16b..6874a4d02291 100644
--- a/src/mainboard/intel/kblrvp/smihandler.c
+++ b/src/mainboard/intel/kblrvp/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 <console/console.h>
 #include <cpu/x86/smm.h>
diff --git a/src/mainboard/intel/kblrvp/spd/spd.h b/src/mainboard/intel/kblrvp/spd/spd.h
index de348f500050..80e8c81a6e91 100644
--- a/src/mainboard/intel/kblrvp/spd/spd.h
+++ b/src/mainboard/intel/kblrvp/spd/spd.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_SPD_H
 #define MAINBOARD_SPD_H
diff --git a/src/mainboard/intel/kblrvp/spd/spd_util.c b/src/mainboard/intel/kblrvp/spd/spd_util.c
index 33970e147f19..531449460460 100644
--- a/src/mainboard/intel/kblrvp/spd/spd_util.c
+++ b/src/mainboard/intel/kblrvp/spd/spd_util.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <stdint.h>
 #include <string.h>
diff --git a/src/mainboard/intel/kblrvp/variants/rvp11/include/variant/gpio.h b/src/mainboard/intel/kblrvp/variants/rvp11/include/variant/gpio.h
index 5a26b61d18d0..566737962ad5 100644
--- a/src/mainboard/intel/kblrvp/variants/rvp11/include/variant/gpio.h
+++ b/src/mainboard/intel/kblrvp/variants/rvp11/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 _GPIORVP11_H
 #define _GPIORVP11_H
diff --git a/src/mainboard/intel/kblrvp/variants/rvp11/include/variant/hda_verb.h b/src/mainboard/intel/kblrvp/variants/rvp11/include/variant/hda_verb.h
index 1b083a3ee63c..1ff7e2481829 100644
--- a/src/mainboard/intel/kblrvp/variants/rvp11/include/variant/hda_verb.h
+++ b/src/mainboard/intel/kblrvp/variants/rvp11/include/variant/hda_verb.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 HDA_VERB_H
 #define HDA_VERB_H
diff --git a/src/mainboard/intel/kblrvp/variants/rvp3/include/variant/gpio.h b/src/mainboard/intel/kblrvp/variants/rvp3/include/variant/gpio.h
index 7265b1affa03..6afc1aa44cab 100644
--- a/src/mainboard/intel/kblrvp/variants/rvp3/include/variant/gpio.h
+++ b/src/mainboard/intel/kblrvp/variants/rvp3/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 MAINBOARD_GPIO_H
 #define MAINBOARD_GPIO_H
diff --git a/src/mainboard/intel/kblrvp/variants/rvp3/include/variant/hda_verb.h b/src/mainboard/intel/kblrvp/variants/rvp3/include/variant/hda_verb.h
index 725623ae0d00..c1f5edcdb8ac 100644
--- a/src/mainboard/intel/kblrvp/variants/rvp3/include/variant/hda_verb.h
+++ b/src/mainboard/intel/kblrvp/variants/rvp3/include/variant/hda_verb.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 HDA_VERB_H
 #define HDA_VERB_H
diff --git a/src/mainboard/intel/kblrvp/variants/rvp7/include/variant/gpio.h b/src/mainboard/intel/kblrvp/variants/rvp7/include/variant/gpio.h
index 2c8c1df37812..d0d840dfa0a7 100644
--- a/src/mainboard/intel/kblrvp/variants/rvp7/include/variant/gpio.h
+++ b/src/mainboard/intel/kblrvp/variants/rvp7/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 _GPIORVP7_H
 #define _GPIORVP7_H
diff --git a/src/mainboard/intel/kblrvp/variants/rvp7/include/variant/hda_verb.h b/src/mainboard/intel/kblrvp/variants/rvp7/include/variant/hda_verb.h
index 0a38bed22377..baed5dd246d1 100644
--- a/src/mainboard/intel/kblrvp/variants/rvp7/include/variant/hda_verb.h
+++ b/src/mainboard/intel/kblrvp/variants/rvp7/include/variant/hda_verb.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 HDA_VERB_H
 #define HDA_VERB_H
diff --git a/src/mainboard/intel/kblrvp/variants/rvp8/include/variant/gpio.h b/src/mainboard/intel/kblrvp/variants/rvp8/include/variant/gpio.h
index 320e7a6c200a..a8d9108f22fd 100644
--- a/src/mainboard/intel/kblrvp/variants/rvp8/include/variant/gpio.h
+++ b/src/mainboard/intel/kblrvp/variants/rvp8/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 _GPIORVP8_H
 #define _GPIORVP8_H
diff --git a/src/mainboard/intel/kunimitsu/acpi/dptf.asl b/src/mainboard/intel/kunimitsu/acpi/dptf.asl
index b2b702d93b3a..9559fa827c4c 100644
--- a/src/mainboard/intel/kunimitsu/acpi/dptf.asl
+++ b/src/mainboard/intel/kunimitsu/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	94
 #define DPTF_CPU_CRITICAL	99
diff --git a/src/mainboard/intel/kunimitsu/acpi/ec.asl b/src/mainboard/intel/kunimitsu/acpi/ec.asl
index 09f58920675f..a6dfd35b5693 100644
--- a/src/mainboard/intel/kunimitsu/acpi/ec.asl
+++ b/src/mainboard/intel/kunimitsu/acpi/ec.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* mainboard configuration */
 #include "../ec.h"
diff --git a/src/mainboard/intel/kunimitsu/acpi/mainboard.asl b/src/mainboard/intel/kunimitsu/acpi/mainboard.asl
index 0e84faab185d..8dc85d942355 100644
--- a/src/mainboard/intel/kunimitsu/acpi/mainboard.asl
+++ b/src/mainboard/intel/kunimitsu/acpi/mainboard.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Scope (\_SB)
 {
diff --git a/src/mainboard/intel/kunimitsu/acpi/superio.asl b/src/mainboard/intel/kunimitsu/acpi/superio.asl
index f5178b3ed0ca..6e83a0a2bde1 100644
--- a/src/mainboard/intel/kunimitsu/acpi/superio.asl
+++ b/src/mainboard/intel/kunimitsu/acpi/superio.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* mainboard configuration */
 #include "../ec.h"
diff --git a/src/mainboard/intel/kunimitsu/bootblock_mainboard.c b/src/mainboard/intel/kunimitsu/bootblock_mainboard.c
index 534dad9b3ddc..40b1a7e6b3b3 100644
--- a/src/mainboard/intel/kunimitsu/bootblock_mainboard.c
+++ b/src/mainboard/intel/kunimitsu/bootblock_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 <bootblock_common.h>
 #include <soc/gpio.h>
diff --git a/src/mainboard/intel/kunimitsu/chromeos.c b/src/mainboard/intel/kunimitsu/chromeos.c
index c7454b49fab7..524a7b724a31 100644
--- a/src/mainboard/intel/kunimitsu/chromeos.c
+++ b/src/mainboard/intel/kunimitsu/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 <boot/coreboot_tables.h>
 #include <gpio.h>
diff --git a/src/mainboard/intel/kunimitsu/dsdt.asl b/src/mainboard/intel/kunimitsu/dsdt.asl
index 879e888c4ede..046baa74ed52 100644
--- a/src/mainboard/intel/kunimitsu/dsdt.asl
+++ b/src/mainboard/intel/kunimitsu/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/kunimitsu/ec.c b/src/mainboard/intel/kunimitsu/ec.c
index eb5456a2311a..52819688a14c 100644
--- a/src/mainboard/intel/kunimitsu/ec.c
+++ b/src/mainboard/intel/kunimitsu/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 <console/console.h>
diff --git a/src/mainboard/intel/kunimitsu/ec.h b/src/mainboard/intel/kunimitsu/ec.h
index dcdaae404ec0..0f46319d05ce 100644
--- a/src/mainboard/intel/kunimitsu/ec.h
+++ b/src/mainboard/intel/kunimitsu/ec.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef MAINBOARD_EC_H
 #define MAINBOARD_EC_H
diff --git a/src/mainboard/intel/kunimitsu/gpio.h b/src/mainboard/intel/kunimitsu/gpio.h
index fff0fc4e41a2..6862318d5378 100644
--- a/src/mainboard/intel/kunimitsu/gpio.h
+++ b/src/mainboard/intel/kunimitsu/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 MAINBOARD_GPIO_H
 #define MAINBOARD_GPIO_H
diff --git a/src/mainboard/intel/kunimitsu/mainboard.c b/src/mainboard/intel/kunimitsu/mainboard.c
index 41453d4939cb..b645f7cb3c45 100644
--- a/src/mainboard/intel/kunimitsu/mainboard.c
+++ b/src/mainboard/intel/kunimitsu/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 <arch/acpi.h>
 #include <console/console.h>
diff --git a/src/mainboard/intel/kunimitsu/ramstage.c b/src/mainboard/intel/kunimitsu/ramstage.c
index 975951ecaec4..ad70ca0c3450 100644
--- a/src/mainboard/intel/kunimitsu/ramstage.c
+++ b/src/mainboard/intel/kunimitsu/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 <soc/ramstage.h>
 #include "gpio.h"
diff --git a/src/mainboard/intel/kunimitsu/romstage.c b/src/mainboard/intel/kunimitsu/romstage.c
index ddd3c0356560..e526dd80f46f 100644
--- a/src/mainboard/intel/kunimitsu/romstage.c
+++ b/src/mainboard/intel/kunimitsu/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <fsp/api.h>
 #include <gpio.h>
diff --git a/src/mainboard/intel/kunimitsu/smihandler.c b/src/mainboard/intel/kunimitsu/smihandler.c
index 35945851cf0b..17837bb0ca88 100644
--- a/src/mainboard/intel/kunimitsu/smihandler.c
+++ b/src/mainboard/intel/kunimitsu/smihandler.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <console/console.h>
diff --git a/src/mainboard/intel/kunimitsu/spd/spd.h b/src/mainboard/intel/kunimitsu/spd/spd.h
index 8fbc09a77724..4ab0388d7bf2 100644
--- a/src/mainboard/intel/kunimitsu/spd/spd.h
+++ b/src/mainboard/intel/kunimitsu/spd/spd.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_SPD_H
 
diff --git a/src/mainboard/intel/kunimitsu/spd/spd_util.c b/src/mainboard/intel/kunimitsu/spd/spd_util.c
index 39a189b0ec46..74039a99e22b 100644
--- a/src/mainboard/intel/kunimitsu/spd/spd_util.c
+++ b/src/mainboard/intel/kunimitsu/spd/spd_util.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 <cbfs.h>
 #include <console/console.h>
 #include <stdint.h>
diff --git a/src/mainboard/intel/leafhill/bootblock.c b/src/mainboard/intel/leafhill/bootblock.c
index 3c8d5bd89c80..695aaac1f0e0 100644
--- a/src/mainboard/intel/leafhill/bootblock.c
+++ b/src/mainboard/intel/leafhill/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 <bootblock_common.h>
 #include <intelblocks/lpc_lib.h>
diff --git a/src/mainboard/intel/leafhill/brd_gpio.h b/src/mainboard/intel/leafhill/brd_gpio.h
index 25e1029397a6..57f2a1189613 100644
--- a/src/mainboard/intel/leafhill/brd_gpio.h
+++ b/src/mainboard/intel/leafhill/brd_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. */
 
 #include <soc/gpio.h>
 
diff --git a/src/mainboard/intel/leafhill/dsdt.asl b/src/mainboard/intel/leafhill/dsdt.asl
index f6f274489f63..11ad0bb47e2e 100644
--- a/src/mainboard/intel/leafhill/dsdt.asl
+++ b/src/mainboard/intel/leafhill/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/leafhill/mainboard.c b/src/mainboard/intel/leafhill/mainboard.c
index 1bc4152be259..8408a912f721 100644
--- a/src/mainboard/intel/leafhill/mainboard.c
+++ b/src/mainboard/intel/leafhill/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 <device/device.h>
 
diff --git a/src/mainboard/intel/leafhill/romstage.c b/src/mainboard/intel/leafhill/romstage.c
index 154a838e1b5a..4ea746712e95 100644
--- a/src/mainboard/intel/leafhill/romstage.c
+++ b/src/mainboard/intel/leafhill/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <string.h>
 #include <soc/romstage.h>
diff --git a/src/mainboard/intel/minnow3/bootblock.c b/src/mainboard/intel/minnow3/bootblock.c
index 1f5bddbc0efc..e77241d232c2 100644
--- a/src/mainboard/intel/minnow3/bootblock.c
+++ b/src/mainboard/intel/minnow3/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 <bootblock_common.h>
 #include <intelblocks/lpc_lib.h>
diff --git a/src/mainboard/intel/minnow3/dsdt.asl b/src/mainboard/intel/minnow3/dsdt.asl
index f6f274489f63..11ad0bb47e2e 100644
--- a/src/mainboard/intel/minnow3/dsdt.asl
+++ b/src/mainboard/intel/minnow3/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/minnow3/gpio.c b/src/mainboard/intel/minnow3/gpio.c
index f8ff0e42cddf..56786438bb6e 100644
--- a/src/mainboard/intel/minnow3/gpio.c
+++ b/src/mainboard/intel/minnow3/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 "gpio.h"
 
diff --git a/src/mainboard/intel/minnow3/gpio.h b/src/mainboard/intel/minnow3/gpio.h
index 57cece978392..8364ac42dcb6 100644
--- a/src/mainboard/intel/minnow3/gpio.h
+++ b/src/mainboard/intel/minnow3/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. */
 
 #include <soc/gpio.h>
 
diff --git a/src/mainboard/intel/minnow3/mainboard.c b/src/mainboard/intel/minnow3/mainboard.c
index 574ef039d422..117b84eacd74 100644
--- a/src/mainboard/intel/minnow3/mainboard.c
+++ b/src/mainboard/intel/minnow3/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 <device/device.h>
 #include "gpio.h"
diff --git a/src/mainboard/intel/minnow3/romstage.c b/src/mainboard/intel/minnow3/romstage.c
index 66a40a1f0a8e..d76684d4c719 100644
--- a/src/mainboard/intel/minnow3/romstage.c
+++ b/src/mainboard/intel/minnow3/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <string.h>
 #include <soc/romstage.h>
diff --git a/src/mainboard/intel/saddlebrook/acpi/mainboard.asl b/src/mainboard/intel/saddlebrook/acpi/mainboard.asl
index 55d11ab44cde..4b79ee19ef02 100644
--- a/src/mainboard/intel/saddlebrook/acpi/mainboard.asl
+++ b/src/mainboard/intel/saddlebrook/acpi/mainboard.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 <soc/gpio.h>
diff --git a/src/mainboard/intel/saddlebrook/bootblock.c b/src/mainboard/intel/saddlebrook/bootblock.c
index 9d0a99b44ba6..bcc53b1e2181 100644
--- a/src/mainboard/intel/saddlebrook/bootblock.c
+++ b/src/mainboard/intel/saddlebrook/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 <bootblock_common.h>
 #include <soc/gpio.h>
diff --git a/src/mainboard/intel/saddlebrook/dsdt.asl b/src/mainboard/intel/saddlebrook/dsdt.asl
index fa047f8d6b42..8cff20f84de2 100644
--- a/src/mainboard/intel/saddlebrook/dsdt.asl
+++ b/src/mainboard/intel/saddlebrook/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/saddlebrook/gpio.h b/src/mainboard/intel/saddlebrook/gpio.h
index 4db74cfe88d1..9a7228a54110 100644
--- a/src/mainboard/intel/saddlebrook/gpio.h
+++ b/src/mainboard/intel/saddlebrook/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 MAINBOARD_GPIO_H
 #define MAINBOARD_GPIO_H
diff --git a/src/mainboard/intel/saddlebrook/ramstage.c b/src/mainboard/intel/saddlebrook/ramstage.c
index 975951ecaec4..ad70ca0c3450 100644
--- a/src/mainboard/intel/saddlebrook/ramstage.c
+++ b/src/mainboard/intel/saddlebrook/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 <soc/ramstage.h>
 #include "gpio.h"
diff --git a/src/mainboard/intel/saddlebrook/romstage.c b/src/mainboard/intel/saddlebrook/romstage.c
index a9447a2218ce..c034be07afa7 100644
--- a/src/mainboard/intel/saddlebrook/romstage.c
+++ b/src/mainboard/intel/saddlebrook/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <fsp/api.h>
diff --git a/src/mainboard/intel/saddlebrook/spd/spd.h b/src/mainboard/intel/saddlebrook/spd/spd.h
index cb38a1b1dbaa..2727a8c6b388 100644
--- a/src/mainboard/intel/saddlebrook/spd/spd.h
+++ b/src/mainboard/intel/saddlebrook/spd/spd.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_SPD_H
 #define MAINBOARD_SPD_H
diff --git a/src/mainboard/intel/saddlebrook/spd/spd_util.c b/src/mainboard/intel/saddlebrook/spd/spd_util.c
index 2f9fd07527c8..a1c20e14da24 100644
--- a/src/mainboard/intel/saddlebrook/spd/spd_util.c
+++ b/src/mainboard/intel/saddlebrook/spd/spd_util.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <stdint.h>
 #include <string.h>
diff --git a/src/mainboard/intel/strago/acpi/dptf.asl b/src/mainboard/intel/strago/acpi/dptf.asl
index 6ac42aa8cf28..356a68a76f13 100644
--- a/src/mainboard/intel/strago/acpi/dptf.asl
+++ b/src/mainboard/intel/strago/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_TSR0_SENSOR_ID	0
 #define DPTF_TSR0_SENSOR_NAME	"TMP432_Internal"
diff --git a/src/mainboard/intel/strago/acpi/ec.asl b/src/mainboard/intel/strago/acpi/ec.asl
index 0b131615fbf5..e361a3e78fcc 100644
--- a/src/mainboard/intel/strago/acpi/ec.asl
+++ b/src/mainboard/intel/strago/acpi/ec.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* mainboard configuration */
 #include "ec.h"
diff --git a/src/mainboard/intel/strago/acpi/mainboard.asl b/src/mainboard/intel/strago/acpi/mainboard.asl
index b43219e1e343..08eb8a409ccf 100644
--- a/src/mainboard/intel/strago/acpi/mainboard.asl
+++ b/src/mainboard/intel/strago/acpi/mainboard.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include "onboard.h"
 
diff --git a/src/mainboard/intel/strago/acpi/superio.asl b/src/mainboard/intel/strago/acpi/superio.asl
index 35be89e496ba..756498b97886 100644
--- a/src/mainboard/intel/strago/acpi/superio.asl
+++ b/src/mainboard/intel/strago/acpi/superio.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* mainboard configuration */
 #include "ec.h"
diff --git a/src/mainboard/intel/strago/acpi_tables.c b/src/mainboard/intel/strago/acpi_tables.c
index 265d11082942..706e107378b9 100644
--- a/src/mainboard/intel/strago/acpi_tables.c
+++ b/src/mainboard/intel/strago/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/ioapic.h>
diff --git a/src/mainboard/intel/strago/chromeos.c b/src/mainboard/intel/strago/chromeos.c
index ef61cadbdfa3..c77a6297ce72 100644
--- a/src/mainboard/intel/strago/chromeos.c
+++ b/src/mainboard/intel/strago/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 <boot/coreboot_tables.h>
 #include <gpio.h>
diff --git a/src/mainboard/intel/strago/com_init.c b/src/mainboard/intel/strago/com_init.c
index 88d8d091b686..81f853f32b23 100644
--- a/src/mainboard/intel/strago/com_init.c
+++ b/src/mainboard/intel/strago/com_init.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 <bootblock_common.h>
 #include <device/mmio.h>
diff --git a/src/mainboard/intel/strago/dsdt.asl b/src/mainboard/intel/strago/dsdt.asl
index 8ce41a99de36..7abbcadab91b 100644
--- a/src/mainboard/intel/strago/dsdt.asl
+++ b/src/mainboard/intel/strago/dsdt.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 DefinitionBlock(
diff --git a/src/mainboard/intel/strago/ec.c b/src/mainboard/intel/strago/ec.c
index 8ebd096da500..55c3e1ff3c36 100644
--- a/src/mainboard/intel/strago/ec.c
+++ b/src/mainboard/intel/strago/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 <console/console.h>
diff --git a/src/mainboard/intel/strago/ec.h b/src/mainboard/intel/strago/ec.h
index 450d863ba321..b93c53fa3305 100644
--- a/src/mainboard/intel/strago/ec.h
+++ b/src/mainboard/intel/strago/ec.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef MAINBOARD_EC_H
 #define MAINBOARD_EC_H
diff --git a/src/mainboard/intel/strago/fadt.c b/src/mainboard/intel/strago/fadt.c
index 9e5af024e4de..8d746676e964 100644
--- a/src/mainboard/intel/strago/fadt.c
+++ b/src/mainboard/intel/strago/fadt.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 <soc/acpi.h>
 #include <string.h>
diff --git a/src/mainboard/intel/strago/gpio.c b/src/mainboard/intel/strago/gpio.c
index 3a2adffb59df..0a8c3c7544f2 100644
--- a/src/mainboard/intel/strago/gpio.c
+++ b/src/mainboard/intel/strago/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 "irqroute.h"
 #include <soc/gpio.h>
diff --git a/src/mainboard/intel/strago/irqroute.c b/src/mainboard/intel/strago/irqroute.c
index f0855adbc27f..df43ee9c692e 100644
--- a/src/mainboard/intel/strago/irqroute.c
+++ b/src/mainboard/intel/strago/irqroute.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 "irqroute.h"
 
diff --git a/src/mainboard/intel/strago/irqroute.h b/src/mainboard/intel/strago/irqroute.h
index 85d8a5f93b0c..cacabfee849f 100644
--- a/src/mainboard/intel/strago/irqroute.h
+++ b/src/mainboard/intel/strago/irqroute.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. */
 
 #include <soc/irq.h>
 #include <soc/pci_devs.h>
diff --git a/src/mainboard/intel/strago/mainboard.c b/src/mainboard/intel/strago/mainboard.c
index 16c89fcd4ed7..00dccb7fef98 100644
--- a/src/mainboard/intel/strago/mainboard.c
+++ b/src/mainboard/intel/strago/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 <bootstate.h>
 #include <device/device.h>
diff --git a/src/mainboard/intel/strago/onboard.h b/src/mainboard/intel/strago/onboard.h
index c483b27c5189..7726bb9a85c9 100644
--- a/src/mainboard/intel/strago/onboard.h
+++ b/src/mainboard/intel/strago/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/intel/strago/ramstage.c b/src/mainboard/intel/strago/ramstage.c
index 47f791dc1c21..f9ad6a0660ce 100644
--- a/src/mainboard/intel/strago/ramstage.c
+++ b/src/mainboard/intel/strago/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 <soc/ramstage.h>
 #include <boardid.h>
diff --git a/src/mainboard/intel/strago/romstage.c b/src/mainboard/intel/strago/romstage.c
index b312e53441c0..307cb2cb485a 100644
--- a/src/mainboard/intel/strago/romstage.c
+++ b/src/mainboard/intel/strago/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <soc/romstage.h>
 #include "onboard.h"
diff --git a/src/mainboard/intel/strago/smihandler.c b/src/mainboard/intel/strago/smihandler.c
index f378eb7bea06..4b1a2e262437 100644
--- a/src/mainboard/intel/strago/smihandler.c
+++ b/src/mainboard/intel/strago/smihandler.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <arch/io.h>
diff --git a/src/mainboard/intel/strago/w25q64.c b/src/mainboard/intel/strago/w25q64.c
index 9e0b30a5fb76..42a0727336a1 100644
--- a/src/mainboard/intel/strago/w25q64.c
+++ b/src/mainboard/intel/strago/w25q64.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 <soc/spi.h>
 #include <string.h>
diff --git a/src/mainboard/intel/tglrvp/acpi/mainboard.asl b/src/mainboard/intel/tglrvp/acpi/mainboard.asl
index 521dfcb3cf26..84b59cb78e15 100644
--- a/src/mainboard/intel/tglrvp/acpi/mainboard.asl
+++ b/src/mainboard/intel/tglrvp/acpi/mainboard.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #if CONFIG(EC_GOOGLE_CHROMEEC)
 Scope (\_SB)
diff --git a/src/mainboard/intel/tglrvp/acpi/mipi_camera.asl b/src/mainboard/intel/tglrvp/acpi/mipi_camera.asl
index de26fd9d0526..98189c04c1d1 100644
--- a/src/mainboard/intel/tglrvp/acpi/mipi_camera.asl
+++ b/src/mainboard/intel/tglrvp/acpi/mipi_camera.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. */
 
 Scope (\_SB.PCI0.IPU0)
 {
diff --git a/src/mainboard/intel/tglrvp/board_id.c b/src/mainboard/intel/tglrvp/board_id.c
index 1913d3f0fc6d..5516f63aad4c 100644
--- a/src/mainboard/intel/tglrvp/board_id.c
+++ b/src/mainboard/intel/tglrvp/board_id.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 <boardid.h>
 #include <ec/acpi/ec.h>
diff --git a/src/mainboard/intel/tglrvp/board_id.h b/src/mainboard/intel/tglrvp/board_id.h
index 748e9d912f31..9f835c40b40e 100644
--- a/src/mainboard/intel/tglrvp/board_id.h
+++ b/src/mainboard/intel/tglrvp/board_id.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_COMMON_BOARD_ID_H_
 #define _MAINBOARD_COMMON_BOARD_ID_H_
diff --git a/src/mainboard/intel/tglrvp/bootblock.c b/src/mainboard/intel/tglrvp/bootblock.c
index 9022af8e8cd4..8c85b825409e 100644
--- a/src/mainboard/intel/tglrvp/bootblock.c
+++ b/src/mainboard/intel/tglrvp/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/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/tglrvp/chromeos.c b/src/mainboard/intel/tglrvp/chromeos.c
index 2f2abb5e6b65..c479c89d7855 100644
--- a/src/mainboard/intel/tglrvp/chromeos.c
+++ b/src/mainboard/intel/tglrvp/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 <baseboard/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/tglrvp/dsdt.asl b/src/mainboard/intel/tglrvp/dsdt.asl
index 89104e9ab0cf..af13d9f5c139 100644
--- a/src/mainboard/intel/tglrvp/dsdt.asl
+++ b/src/mainboard/intel/tglrvp/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 <baseboard/ec.h>
diff --git a/src/mainboard/intel/tglrvp/mainboard.c b/src/mainboard/intel/tglrvp/mainboard.c
index 680472b71b24..d7320c935c5e 100644
--- a/src/mainboard/intel/tglrvp/mainboard.c
+++ b/src/mainboard/intel/tglrvp/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/gpio.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/tglrvp/romstage_fsp_params.c b/src/mainboard/intel/tglrvp/romstage_fsp_params.c
index d8057f6564d1..2cf219d61bfa 100644
--- a/src/mainboard/intel/tglrvp/romstage_fsp_params.c
+++ b/src/mainboard/intel/tglrvp/romstage_fsp_params.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 <assert.h>
 #include <console/console.h>
 #include <fsp/api.h>
diff --git a/src/mainboard/intel/tglrvp/spd/spd.h b/src/mainboard/intel/tglrvp/spd/spd.h
index f5ba411a5097..44c0e266345f 100644
--- a/src/mainboard/intel/tglrvp/spd/spd.h
+++ b/src/mainboard/intel/tglrvp/spd/spd.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_SPD_H
 #define MAINBOARD_SPD_H
diff --git a/src/mainboard/intel/tglrvp/spd/spd_util.c b/src/mainboard/intel/tglrvp/spd/spd_util.c
index fa1204ec744f..9110cb1b1b8b 100644
--- a/src/mainboard/intel/tglrvp/spd/spd_util.c
+++ b/src/mainboard/intel/tglrvp/spd/spd_util.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/cpu.h>
 #include <stdint.h>
diff --git a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/ec.h b/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/ec.h
index 60ae713c5d64..edf5febcc496 100644
--- a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/ec.h
+++ b/src/mainboard/intel/tglrvp/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/intel/tglrvp/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/gpio.h
index 8d56b32f80dc..cbe8b0f28802 100644
--- a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/gpio.h
+++ b/src/mainboard/intel/tglrvp/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/intel/tglrvp/variants/baseboard/include/baseboard/variants.h b/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/variants.h
index b38daff8536d..acb24534e962 100644
--- a/src/mainboard/intel/tglrvp/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/intel/tglrvp/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/intel/tglrvp/variants/tglrvp_up3/gpio.c b/src/mainboard/intel/tglrvp/variants/tglrvp_up3/gpio.c
index 758a21c5c9ac..79ffd38f2788 100644
--- a/src/mainboard/intel/tglrvp/variants/tglrvp_up3/gpio.c
+++ b/src/mainboard/intel/tglrvp/variants/tglrvp_up3/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/intel/tglrvp/variants/tglrvp_up3/memory.c b/src/mainboard/intel/tglrvp/variants/tglrvp_up3/memory.c
index ad2f24f9c1f4..4a57a555c58a 100644
--- a/src/mainboard/intel/tglrvp/variants/tglrvp_up3/memory.c
+++ b/src/mainboard/intel/tglrvp/variants/tglrvp_up3/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 <arch/cpu.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/tglrvp/variants/tglrvp_up4/gpio.c b/src/mainboard/intel/tglrvp/variants/tglrvp_up4/gpio.c
index 219786535a76..27d610b48c5c 100644
--- a/src/mainboard/intel/tglrvp/variants/tglrvp_up4/gpio.c
+++ b/src/mainboard/intel/tglrvp/variants/tglrvp_up4/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/intel/tglrvp/variants/tglrvp_up4/memory.c b/src/mainboard/intel/tglrvp/variants/tglrvp_up4/memory.c
index 929d0cca89b2..2a463d5a8793 100644
--- a/src/mainboard/intel/tglrvp/variants/tglrvp_up4/memory.c
+++ b/src/mainboard/intel/tglrvp/variants/tglrvp_up4/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 <arch/cpu.h>
 #include <baseboard/variants.h>
diff --git a/src/mainboard/intel/wtm2/acpi/ec.asl b/src/mainboard/intel/wtm2/acpi/ec.asl
index d7ef095d9ccd..f9fa120c13ed 100644
--- a/src/mainboard/intel/wtm2/acpi/ec.asl
+++ b/src/mainboard/intel/wtm2/acpi/ec.asl
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Device (EC0)
 {
diff --git a/src/mainboard/intel/wtm2/acpi/mainboard.asl b/src/mainboard/intel/wtm2/acpi/mainboard.asl
index 776b63e2fce2..245e9d5ac3ec 100644
--- a/src/mainboard/intel/wtm2/acpi/mainboard.asl
+++ b/src/mainboard/intel/wtm2/acpi/mainboard.asl
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Device (PWRB)
 {
diff --git a/src/mainboard/intel/wtm2/acpi/platform.asl b/src/mainboard/intel/wtm2/acpi/platform.asl
index 92c98614d734..b8d04f9ac0f4 100644
--- a/src/mainboard/intel/wtm2/acpi/platform.asl
+++ b/src/mainboard/intel/wtm2/acpi/platform.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* The _PTS method (Prepare To Sleep) is called before the OS is
  * entering a sleep state. The sleep state number is passed in Arg0
diff --git a/src/mainboard/intel/wtm2/acpi/thermal.asl b/src/mainboard/intel/wtm2/acpi/thermal.asl
index e8af50bf8752..3d5fd7cb915c 100644
--- a/src/mainboard/intel/wtm2/acpi/thermal.asl
+++ b/src/mainboard/intel/wtm2/acpi/thermal.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* Generated by acpigen */
 External (\PPKG, MethodObj)
diff --git a/src/mainboard/intel/wtm2/acpi_tables.c b/src/mainboard/intel/wtm2/acpi_tables.c
index 727d17572cc3..e06e42b1cc90 100644
--- a/src/mainboard/intel/wtm2/acpi_tables.c
+++ b/src/mainboard/intel/wtm2/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <types.h>
 #include <arch/acpi.h>
diff --git a/src/mainboard/intel/wtm2/chromeos.c b/src/mainboard/intel/wtm2/chromeos.c
index 6926ed08aa9c..afbd1a2c0f6e 100644
--- a/src/mainboard/intel/wtm2/chromeos.c
+++ b/src/mainboard/intel/wtm2/chromeos.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <bootmode.h>
 #include <boot/coreboot_tables.h>
diff --git a/src/mainboard/intel/wtm2/dsdt.asl b/src/mainboard/intel/wtm2/dsdt.asl
index d4de0ca0b138..18609ac9f771 100644
--- a/src/mainboard/intel/wtm2/dsdt.asl
+++ b/src/mainboard/intel/wtm2/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. */
 
 #define ENABLE_TPM
 
diff --git a/src/mainboard/intel/wtm2/fadt.c b/src/mainboard/intel/wtm2/fadt.c
index 621beb96551c..d580259ba6b4 100644
--- a/src/mainboard/intel/wtm2/fadt.c
+++ b/src/mainboard/intel/wtm2/fadt.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 <string.h>
 #include <soc/acpi.h>
diff --git a/src/mainboard/intel/wtm2/gpio.c b/src/mainboard/intel/wtm2/gpio.c
index c2d7bf87d21f..a95e21e4df19 100644
--- a/src/mainboard/intel/wtm2/gpio.c
+++ b/src/mainboard/intel/wtm2/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 <soc/gpio.h>
 
diff --git a/src/mainboard/intel/wtm2/hda_verb.c b/src/mainboard/intel/wtm2/hda_verb.c
index 11041770e4f0..18eedc23cda4 100644
--- a/src/mainboard/intel/wtm2/hda_verb.c
+++ b/src/mainboard/intel/wtm2/hda_verb.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <device/azalia_device.h>
 
diff --git a/src/mainboard/intel/wtm2/mainboard.c b/src/mainboard/intel/wtm2/mainboard.c
index aa4a70779829..026a28dc2fca 100644
--- a/src/mainboard/intel/wtm2/mainboard.c
+++ b/src/mainboard/intel/wtm2/mainboard.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <types.h>
 #include <device/device.h>
diff --git a/src/mainboard/intel/wtm2/pei_data.c b/src/mainboard/intel/wtm2/pei_data.c
index c1e3f21d4a22..d71e6b239dfd 100644
--- a/src/mainboard/intel/wtm2/pei_data.c
+++ b/src/mainboard/intel/wtm2/pei_data.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <stdint.h>
 #include <soc/gpio.h>
diff --git a/src/mainboard/intel/wtm2/romstage.c b/src/mainboard/intel/wtm2/romstage.c
index db2ecf5bcd8e..b4263446ace8 100644
--- a/src/mainboard/intel/wtm2/romstage.c
+++ b/src/mainboard/intel/wtm2/romstage.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <console/console.h>
 #include <stdint.h>
diff --git a/src/mainboard/intel/wtm2/thermal.h b/src/mainboard/intel/wtm2/thermal.h
index e26631fd7b6f..ec2ae8040550 100644
--- a/src/mainboard/intel/wtm2/thermal.h
+++ b/src/mainboard/intel/wtm2/thermal.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef WTM2_THERMAL_H
 #define WTM2_THERMAL_H