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

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

Change-Id: I0dea26da28a2879e34593907fef6f984317c347f
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40191
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

104 files changed, 208 insertions, 1323 deletions

diff --git a/src/mainboard/google/rambi/acpi/dptf.asl b/src/mainboard/google/rambi/acpi/dptf.asl
index 673ad1c1ae..904c0b20e3 100644
--- a/src/mainboard/google/rambi/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/acpi/dptf.asl
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* Include variant DPTF */
 #include <variant/acpi/dptf.asl>
diff --git a/src/mainboard/google/rambi/acpi/ec.asl b/src/mainboard/google/rambi/acpi/ec.asl
index f66955aa7b..9653cf0718 100644
--- a/src/mainboard/google/rambi/acpi/ec.asl
+++ b/src/mainboard/google/rambi/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 <mainboard/google/rambi/ec.h>
diff --git a/src/mainboard/google/rambi/acpi/mainboard.asl b/src/mainboard/google/rambi/acpi/mainboard.asl
index a17ecaee19..a928ef3461 100644
--- a/src/mainboard/google/rambi/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/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 <variant/onboard.h>
 
diff --git a/src/mainboard/google/rambi/acpi/superio.asl b/src/mainboard/google/rambi/acpi/superio.asl
index 9f3fe50293..39c4c692c2 100644
--- a/src/mainboard/google/rambi/acpi/superio.asl
+++ b/src/mainboard/google/rambi/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. */
 
 /* Baseboard configuration */
 #include <mainboard/google/rambi/ec.h>
diff --git a/src/mainboard/google/rambi/acpi/touchscreen_atmel.asl b/src/mainboard/google/rambi/acpi/touchscreen_atmel.asl
index 80b28e21ef..6215ba8e76 100644
--- a/src/mainboard/google/rambi/acpi/touchscreen_atmel.asl
+++ b/src/mainboard/google/rambi/acpi/touchscreen_atmel.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/onboard.h>
 
diff --git a/src/mainboard/google/rambi/acpi/touchscreen_elan.asl b/src/mainboard/google/rambi/acpi/touchscreen_elan.asl
index feb6c9209d..40804fc359 100644
--- a/src/mainboard/google/rambi/acpi/touchscreen_elan.asl
+++ b/src/mainboard/google/rambi/acpi/touchscreen_elan.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/onboard.h>
 
diff --git a/src/mainboard/google/rambi/acpi/touchscreen_wdt.asl b/src/mainboard/google/rambi/acpi/touchscreen_wdt.asl
index 9732c1002b..a262425c80 100644
--- a/src/mainboard/google/rambi/acpi/touchscreen_wdt.asl
+++ b/src/mainboard/google/rambi/acpi/touchscreen_wdt.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/onboard.h>
 
diff --git a/src/mainboard/google/rambi/acpi/trackpad_atmel.asl b/src/mainboard/google/rambi/acpi/trackpad_atmel.asl
index 20296bddf4..d18f923dcb 100644
--- a/src/mainboard/google/rambi/acpi/trackpad_atmel.asl
+++ b/src/mainboard/google/rambi/acpi/trackpad_atmel.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/onboard.h>
 
diff --git a/src/mainboard/google/rambi/acpi/trackpad_elan.asl b/src/mainboard/google/rambi/acpi/trackpad_elan.asl
index d1adb138ef..08f1a2e0ba 100644
--- a/src/mainboard/google/rambi/acpi/trackpad_elan.asl
+++ b/src/mainboard/google/rambi/acpi/trackpad_elan.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/onboard.h>
 
diff --git a/src/mainboard/google/rambi/acpi_tables.c b/src/mainboard/google/rambi/acpi_tables.c
index 4538bdb29d..ef65930bf3 100644
--- a/src/mainboard/google/rambi/acpi_tables.c
+++ b/src/mainboard/google/rambi/acpi_tables.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <types.h>
 #include <arch/acpi.h>
diff --git a/src/mainboard/google/rambi/chromeos.c b/src/mainboard/google/rambi/chromeos.c
index fbb709d42b..3d2bd4592f 100644
--- a/src/mainboard/google/rambi/chromeos.c
+++ b/src/mainboard/google/rambi/chromeos.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <bootmode.h>
 #include <boot/coreboot_tables.h>
diff --git a/src/mainboard/google/rambi/dsdt.asl b/src/mainboard/google/rambi/dsdt.asl
index 347269fa15..ce393a312c 100644
--- a/src/mainboard/google/rambi/dsdt.asl
+++ b/src/mainboard/google/rambi/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/google/rambi/ec.c b/src/mainboard/google/rambi/ec.c
index 39d3aac7b0..4e1a192ee4 100644
--- a/src/mainboard/google/rambi/ec.c
+++ b/src/mainboard/google/rambi/ec.c
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <arch/acpi.h>
 #include <types.h>
diff --git a/src/mainboard/google/rambi/ec.h b/src/mainboard/google/rambi/ec.h
index 6dd15badef..a2c738163b 100644
--- a/src/mainboard/google/rambi/ec.h
+++ b/src/mainboard/google/rambi/ec.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef MAINBOARD_EC_H
 #define MAINBOARD_EC_H
diff --git a/src/mainboard/google/rambi/fadt.c b/src/mainboard/google/rambi/fadt.c
index 6afc8e23c0..47d50d28c0 100644
--- a/src/mainboard/google/rambi/fadt.c
+++ b/src/mainboard/google/rambi/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/google/rambi/irqroute.c b/src/mainboard/google/rambi/irqroute.c
index f0855adbc2..df43ee9c69 100644
--- a/src/mainboard/google/rambi/irqroute.c
+++ b/src/mainboard/google/rambi/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/google/rambi/irqroute.h b/src/mainboard/google/rambi/irqroute.h
index fd28367235..2d780ed138 100644
--- a/src/mainboard/google/rambi/irqroute.h
+++ b/src/mainboard/google/rambi/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/google/rambi/mainboard.c b/src/mainboard/google/rambi/mainboard.c
index 4a1fd91dce..51da9b8672 100644
--- a/src/mainboard/google/rambi/mainboard.c
+++ b/src/mainboard/google/rambi/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/google/rambi/mainboard_smi.c b/src/mainboard/google/rambi/mainboard_smi.c
index 9f2098e9aa..fa0e39f999 100644
--- a/src/mainboard/google/rambi/mainboard_smi.c
+++ b/src/mainboard/google/rambi/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/google/rambi/romstage.c b/src/mainboard/google/rambi/romstage.c
index d786ee6711..c9753c02ac 100644
--- a/src/mainboard/google/rambi/romstage.c
+++ b/src/mainboard/google/rambi/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 <cbfs.h>
diff --git a/src/mainboard/google/rambi/variants/banjo/gpio.c b/src/mainboard/google/rambi/variants/banjo/gpio.c
index 60d809323e..cf7f33495c 100644
--- a/src/mainboard/google/rambi/variants/banjo/gpio.c
+++ b/src/mainboard/google/rambi/variants/banjo/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/banjo/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/banjo/include/variant/acpi/dptf.asl
index 4276b1cda5..e342d711bd 100644
--- a/src/mainboard/google/rambi/variants/banjo/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/banjo/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/banjo/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/banjo/include/variant/acpi/mainboard.asl
index f64eeff40e..4e1583d3dd 100644
--- a/src/mainboard/google/rambi/variants/banjo/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/banjo/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/banjo/include/variant/onboard.h b/src/mainboard/google/rambi/variants/banjo/include/variant/onboard.h
index 71ce0e52f9..ddfadee156 100644
--- a/src/mainboard/google/rambi/variants/banjo/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/banjo/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/banjo/include/variant/variant.h b/src/mainboard/google/rambi/variants/banjo/include/variant/variant.h
index 29b707c972..99c427986a 100644
--- a/src/mainboard/google/rambi/variants/banjo/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/banjo/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/candy/gpio.c b/src/mainboard/google/rambi/variants/candy/gpio.c
index 5f15a15452..28c82e3c4d 100644
--- a/src/mainboard/google/rambi/variants/candy/gpio.c
+++ b/src/mainboard/google/rambi/variants/candy/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/candy/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/candy/include/variant/acpi/dptf.asl
index 8dd08851a8..d2c038cbd2 100644
--- a/src/mainboard/google/rambi/variants/candy/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/candy/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	85
 #define DPTF_CPU_CRITICAL	100
diff --git a/src/mainboard/google/rambi/variants/candy/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/candy/include/variant/acpi/mainboard.asl
index 33d3209cd4..52c61cb45f 100644
--- a/src/mainboard/google/rambi/variants/candy/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/candy/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/candy/include/variant/acpi/usb.asl b/src/mainboard/google/rambi/variants/candy/include/variant/acpi/usb.asl
index 028a546cf0..c2b8548db2 100644
--- a/src/mainboard/google/rambi/variants/candy/include/variant/acpi/usb.asl
+++ b/src/mainboard/google/rambi/variants/candy/include/variant/acpi/usb.asl
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Scope (\_SB.PCI0.XHCI.RHUB.PRT1)
 {
diff --git a/src/mainboard/google/rambi/variants/candy/include/variant/onboard.h b/src/mainboard/google/rambi/variants/candy/include/variant/onboard.h
index ff737235c2..0e62e05953 100644
--- a/src/mainboard/google/rambi/variants/candy/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/candy/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/candy/include/variant/variant.h b/src/mainboard/google/rambi/variants/candy/include/variant/variant.h
index 9dac2b9b5c..1db452da0f 100644
--- a/src/mainboard/google/rambi/variants/candy/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/candy/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/clapper/gpio.c b/src/mainboard/google/rambi/variants/clapper/gpio.c
index 7eacfd1797..7753b636a2 100644
--- a/src/mainboard/google/rambi/variants/clapper/gpio.c
+++ b/src/mainboard/google/rambi/variants/clapper/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/clapper/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/clapper/include/variant/acpi/dptf.asl
index 53dd09c0f3..17344330b0 100644
--- a/src/mainboard/google/rambi/variants/clapper/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/clapper/include/variant/acpi/dptf.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. */
 
 #define DPTF_TSR0_SENSOR_ID	1
 #define DPTF_TSR0_SENSOR_NAME	"TMP432_Internal"
diff --git a/src/mainboard/google/rambi/variants/clapper/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/clapper/include/variant/acpi/mainboard.asl
index 82510bd359..021b540be4 100644
--- a/src/mainboard/google/rambi/variants/clapper/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/clapper/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/clapper/include/variant/onboard.h b/src/mainboard/google/rambi/variants/clapper/include/variant/onboard.h
index 8c135423f9..232e01e7b0 100644
--- a/src/mainboard/google/rambi/variants/clapper/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/clapper/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/clapper/include/variant/variant.h b/src/mainboard/google/rambi/variants/clapper/include/variant/variant.h
index 4e5ba4216e..510adc09b7 100644
--- a/src/mainboard/google/rambi/variants/clapper/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/clapper/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/enguarde/gpio.c b/src/mainboard/google/rambi/variants/enguarde/gpio.c
index df15054e97..a2903946f1 100644
--- a/src/mainboard/google/rambi/variants/enguarde/gpio.c
+++ b/src/mainboard/google/rambi/variants/enguarde/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/enguarde/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/enguarde/include/variant/acpi/dptf.asl
index e9b78a864f..568aefaf9c 100644
--- a/src/mainboard/google/rambi/variants/enguarde/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/enguarde/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/enguarde/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/enguarde/include/variant/acpi/mainboard.asl
index 3cdd5c0cb2..4e1583d3dd 100644
--- a/src/mainboard/google/rambi/variants/enguarde/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/enguarde/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/enguarde/include/variant/onboard.h b/src/mainboard/google/rambi/variants/enguarde/include/variant/onboard.h
index a693c71213..31fc27341d 100644
--- a/src/mainboard/google/rambi/variants/enguarde/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/enguarde/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/enguarde/include/variant/variant.h b/src/mainboard/google/rambi/variants/enguarde/include/variant/variant.h
index 55c20a2952..72154d60e3 100644
--- a/src/mainboard/google/rambi/variants/enguarde/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/enguarde/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/glimmer/gpio.c b/src/mainboard/google/rambi/variants/glimmer/gpio.c
index 57b9653ae0..66cd191154 100644
--- a/src/mainboard/google/rambi/variants/glimmer/gpio.c
+++ b/src/mainboard/google/rambi/variants/glimmer/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/glimmer/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/glimmer/include/variant/acpi/dptf.asl
index 6e2630be3b..a5ee338a1b 100644
--- a/src/mainboard/google/rambi/variants/glimmer/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/glimmer/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/glimmer/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/glimmer/include/variant/acpi/mainboard.asl
index 82510bd359..021b540be4 100644
--- a/src/mainboard/google/rambi/variants/glimmer/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/glimmer/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/glimmer/include/variant/onboard.h b/src/mainboard/google/rambi/variants/glimmer/include/variant/onboard.h
index 8c135423f9..232e01e7b0 100644
--- a/src/mainboard/google/rambi/variants/glimmer/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/glimmer/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/glimmer/include/variant/variant.h b/src/mainboard/google/rambi/variants/glimmer/include/variant/variant.h
index 28105518a4..84dbe4363e 100644
--- a/src/mainboard/google/rambi/variants/glimmer/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/glimmer/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/gnawty/gpio.c b/src/mainboard/google/rambi/variants/gnawty/gpio.c
index 2b4af4a53d..22001fd022 100644
--- a/src/mainboard/google/rambi/variants/gnawty/gpio.c
+++ b/src/mainboard/google/rambi/variants/gnawty/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/gnawty/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/gnawty/include/variant/acpi/dptf.asl
index 1df96fab95..8033fe39a3 100644
--- a/src/mainboard/google/rambi/variants/gnawty/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/gnawty/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/gnawty/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/gnawty/include/variant/acpi/mainboard.asl
index 3cdd5c0cb2..4e1583d3dd 100644
--- a/src/mainboard/google/rambi/variants/gnawty/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/gnawty/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/gnawty/include/variant/onboard.h b/src/mainboard/google/rambi/variants/gnawty/include/variant/onboard.h
index ff737235c2..0e62e05953 100644
--- a/src/mainboard/google/rambi/variants/gnawty/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/gnawty/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/gnawty/include/variant/variant.h b/src/mainboard/google/rambi/variants/gnawty/include/variant/variant.h
index dd76bd31c8..d9b25c46fd 100644
--- a/src/mainboard/google/rambi/variants/gnawty/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/gnawty/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/heli/gpio.c b/src/mainboard/google/rambi/variants/heli/gpio.c
index ead1341a0f..95c46d37f6 100644
--- a/src/mainboard/google/rambi/variants/heli/gpio.c
+++ b/src/mainboard/google/rambi/variants/heli/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/heli/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/heli/include/variant/acpi/dptf.asl
index adc796d0e6..30941b9269 100644
--- a/src/mainboard/google/rambi/variants/heli/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/heli/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/heli/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/heli/include/variant/acpi/mainboard.asl
index 3cdd5c0cb2..4e1583d3dd 100644
--- a/src/mainboard/google/rambi/variants/heli/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/heli/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/heli/include/variant/onboard.h b/src/mainboard/google/rambi/variants/heli/include/variant/onboard.h
index 71ce0e52f9..ddfadee156 100644
--- a/src/mainboard/google/rambi/variants/heli/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/heli/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/heli/include/variant/variant.h b/src/mainboard/google/rambi/variants/heli/include/variant/variant.h
index a240e40fd4..c6d7d9705b 100644
--- a/src/mainboard/google/rambi/variants/heli/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/heli/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/kip/gpio.c b/src/mainboard/google/rambi/variants/kip/gpio.c
index 9180b880f7..280e14d07d 100644
--- a/src/mainboard/google/rambi/variants/kip/gpio.c
+++ b/src/mainboard/google/rambi/variants/kip/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/kip/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/kip/include/variant/acpi/dptf.asl
index e88ac7df42..bd1df99bfc 100644
--- a/src/mainboard/google/rambi/variants/kip/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/kip/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/kip/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/kip/include/variant/acpi/mainboard.asl
index 3cdd5c0cb2..4e1583d3dd 100644
--- a/src/mainboard/google/rambi/variants/kip/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/kip/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/kip/include/variant/onboard.h b/src/mainboard/google/rambi/variants/kip/include/variant/onboard.h
index a693c71213..31fc27341d 100644
--- a/src/mainboard/google/rambi/variants/kip/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/kip/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/kip/include/variant/variant.h b/src/mainboard/google/rambi/variants/kip/include/variant/variant.h
index 06bcbec82e..984b7939d8 100644
--- a/src/mainboard/google/rambi/variants/kip/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/kip/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/ninja/gpio.c b/src/mainboard/google/rambi/variants/ninja/gpio.c
index 945182c236..4bff882acf 100644
--- a/src/mainboard/google/rambi/variants/ninja/gpio.c
+++ b/src/mainboard/google/rambi/variants/ninja/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/ninja/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/ninja/include/variant/acpi/dptf.asl
index a460908726..223a5d3027 100644
--- a/src/mainboard/google/rambi/variants/ninja/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/ninja/include/variant/acpi/dptf.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	105
diff --git a/src/mainboard/google/rambi/variants/ninja/include/variant/onboard.h b/src/mainboard/google/rambi/variants/ninja/include/variant/onboard.h
index 2d7594a1f8..217f1bc302 100644
--- a/src/mainboard/google/rambi/variants/ninja/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/ninja/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/ninja/include/variant/variant.h b/src/mainboard/google/rambi/variants/ninja/include/variant/variant.h
index 98f43a0586..cf3915a92f 100644
--- a/src/mainboard/google/rambi/variants/ninja/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/ninja/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/ninja/lan.c b/src/mainboard/google/rambi/variants/ninja/lan.c
index a5e5c4bfe8..6955e644e9 100644
--- a/src/mainboard/google/rambi/variants/ninja/lan.c
+++ b/src/mainboard/google/rambi/variants/ninja/lan.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 <types.h>
diff --git a/src/mainboard/google/rambi/variants/orco/gpio.c b/src/mainboard/google/rambi/variants/orco/gpio.c
index 08cb034d16..18241ae19d 100644
--- a/src/mainboard/google/rambi/variants/orco/gpio.c
+++ b/src/mainboard/google/rambi/variants/orco/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/orco/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/orco/include/variant/acpi/dptf.asl
index 3530d7bc6d..568aefaf9c 100644
--- a/src/mainboard/google/rambi/variants/orco/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/orco/include/variant/acpi/dptf.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/orco/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/orco/include/variant/acpi/mainboard.asl
index 3cdd5c0cb2..4e1583d3dd 100644
--- a/src/mainboard/google/rambi/variants/orco/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/orco/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/orco/include/variant/onboard.h b/src/mainboard/google/rambi/variants/orco/include/variant/onboard.h
index 71ce0e52f9..ddfadee156 100644
--- a/src/mainboard/google/rambi/variants/orco/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/orco/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/orco/include/variant/variant.h b/src/mainboard/google/rambi/variants/orco/include/variant/variant.h
index eeaaf60ca1..f3f4e6ddaf 100644
--- a/src/mainboard/google/rambi/variants/orco/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/orco/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/quawks/gpio.c b/src/mainboard/google/rambi/variants/quawks/gpio.c
index 9180b880f7..280e14d07d 100644
--- a/src/mainboard/google/rambi/variants/quawks/gpio.c
+++ b/src/mainboard/google/rambi/variants/quawks/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/quawks/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/quawks/include/variant/acpi/dptf.asl
index 7e36946665..c58952b3d3 100644
--- a/src/mainboard/google/rambi/variants/quawks/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/quawks/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/quawks/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/quawks/include/variant/acpi/mainboard.asl
index 3cdd5c0cb2..4e1583d3dd 100644
--- a/src/mainboard/google/rambi/variants/quawks/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/quawks/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/quawks/include/variant/onboard.h b/src/mainboard/google/rambi/variants/quawks/include/variant/onboard.h
index a693c71213..31fc27341d 100644
--- a/src/mainboard/google/rambi/variants/quawks/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/quawks/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/quawks/include/variant/variant.h b/src/mainboard/google/rambi/variants/quawks/include/variant/variant.h
index f98beb20c1..2f074178fb 100644
--- a/src/mainboard/google/rambi/variants/quawks/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/quawks/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/rambi/gpio.c b/src/mainboard/google/rambi/variants/rambi/gpio.c
index 9180b880f7..280e14d07d 100644
--- a/src/mainboard/google/rambi/variants/rambi/gpio.c
+++ b/src/mainboard/google/rambi/variants/rambi/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/rambi/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/rambi/include/variant/acpi/dptf.asl
index f8409eed13..8984937e6e 100644
--- a/src/mainboard/google/rambi/variants/rambi/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/rambi/include/variant/acpi/dptf.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/rambi/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/rambi/include/variant/acpi/mainboard.asl
index f4bc3251cb..833fee76b4 100644
--- a/src/mainboard/google/rambi/variants/rambi/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/rambi/include/variant/acpi/mainboard.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <variant/onboard.h>
 
diff --git a/src/mainboard/google/rambi/variants/rambi/include/variant/onboard.h b/src/mainboard/google/rambi/variants/rambi/include/variant/onboard.h
index 62a0884d15..343e7c2a74 100644
--- a/src/mainboard/google/rambi/variants/rambi/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/rambi/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/rambi/include/variant/variant.h b/src/mainboard/google/rambi/variants/rambi/include/variant/variant.h
index 8051f1b7af..45e6657d23 100644
--- a/src/mainboard/google/rambi/variants/rambi/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/rambi/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/squawks/gpio.c b/src/mainboard/google/rambi/variants/squawks/gpio.c
index 9180b880f7..280e14d07d 100644
--- a/src/mainboard/google/rambi/variants/squawks/gpio.c
+++ b/src/mainboard/google/rambi/variants/squawks/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/dptf.asl
index b17f980c8d..6b5825e692 100644
--- a/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	90
 #define DPTF_CPU_CRITICAL	100
diff --git a/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/mainboard.asl
index 3cdd5c0cb2..4e1583d3dd 100644
--- a/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/squawks/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/usb.asl b/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/usb.asl
index cacf40f714..2b925e5b92 100644
--- a/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/usb.asl
+++ b/src/mainboard/google/rambi/variants/squawks/include/variant/acpi/usb.asl
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 Scope (\_SB.PCI0.XHCI.RHUB.PRT1)
 {
diff --git a/src/mainboard/google/rambi/variants/squawks/include/variant/onboard.h b/src/mainboard/google/rambi/variants/squawks/include/variant/onboard.h
index a693c71213..31fc27341d 100644
--- a/src/mainboard/google/rambi/variants/squawks/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/squawks/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/squawks/include/variant/variant.h b/src/mainboard/google/rambi/variants/squawks/include/variant/variant.h
index f98beb20c1..2f074178fb 100644
--- a/src/mainboard/google/rambi/variants/squawks/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/squawks/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/sumo/gpio.c b/src/mainboard/google/rambi/variants/sumo/gpio.c
index 6dc8851e65..31ab5f8b96 100644
--- a/src/mainboard/google/rambi/variants/sumo/gpio.c
+++ b/src/mainboard/google/rambi/variants/sumo/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/sumo/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/sumo/include/variant/acpi/dptf.asl
index 3530d7bc6d..568aefaf9c 100644
--- a/src/mainboard/google/rambi/variants/sumo/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/sumo/include/variant/acpi/dptf.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/sumo/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/sumo/include/variant/acpi/mainboard.asl
index e7f06ee2b7..9990a6bc0d 100644
--- a/src/mainboard/google/rambi/variants/sumo/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/sumo/include/variant/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. */
 
 /* WDT touchscreen */
 #include <mainboard/google/rambi/acpi/touchscreen_wdt.asl>
diff --git a/src/mainboard/google/rambi/variants/sumo/include/variant/onboard.h b/src/mainboard/google/rambi/variants/sumo/include/variant/onboard.h
index 601b137461..e3bb0802f0 100644
--- a/src/mainboard/google/rambi/variants/sumo/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/sumo/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/sumo/include/variant/variant.h b/src/mainboard/google/rambi/variants/sumo/include/variant/variant.h
index 98f43a0586..cf3915a92f 100644
--- a/src/mainboard/google/rambi/variants/sumo/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/sumo/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/sumo/lan.c b/src/mainboard/google/rambi/variants/sumo/lan.c
index 97495049ad..d4f7f975c6 100644
--- a/src/mainboard/google/rambi/variants/sumo/lan.c
+++ b/src/mainboard/google/rambi/variants/sumo/lan.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 <types.h>
diff --git a/src/mainboard/google/rambi/variants/swanky/gpio.c b/src/mainboard/google/rambi/variants/swanky/gpio.c
index 951ee54593..8a47859633 100644
--- a/src/mainboard/google/rambi/variants/swanky/gpio.c
+++ b/src/mainboard/google/rambi/variants/swanky/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/swanky/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/swanky/include/variant/acpi/dptf.asl
index e9b78a864f..568aefaf9c 100644
--- a/src/mainboard/google/rambi/variants/swanky/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/swanky/include/variant/acpi/dptf.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. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/swanky/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/swanky/include/variant/acpi/mainboard.asl
index 3cdd5c0cb2..4e1583d3dd 100644
--- a/src/mainboard/google/rambi/variants/swanky/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/swanky/include/variant/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. */
 
 /* Elan trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_elan.asl>
diff --git a/src/mainboard/google/rambi/variants/swanky/include/variant/onboard.h b/src/mainboard/google/rambi/variants/swanky/include/variant/onboard.h
index 71ce0e52f9..ddfadee156 100644
--- a/src/mainboard/google/rambi/variants/swanky/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/swanky/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/swanky/include/variant/variant.h b/src/mainboard/google/rambi/variants/swanky/include/variant/variant.h
index 0beee1cad6..80f88d4cfd 100644
--- a/src/mainboard/google/rambi/variants/swanky/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/swanky/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/variants/winky/gpio.c b/src/mainboard/google/rambi/variants/winky/gpio.c
index 6924044276..2c6e93546e 100644
--- a/src/mainboard/google/rambi/variants/winky/gpio.c
+++ b/src/mainboard/google/rambi/variants/winky/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>
 #include <mainboard/google/rambi/irqroute.h>
diff --git a/src/mainboard/google/rambi/variants/winky/include/variant/acpi/dptf.asl b/src/mainboard/google/rambi/variants/winky/include/variant/acpi/dptf.asl
index 3530d7bc6d..568aefaf9c 100644
--- a/src/mainboard/google/rambi/variants/winky/include/variant/acpi/dptf.asl
+++ b/src/mainboard/google/rambi/variants/winky/include/variant/acpi/dptf.asl
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #define DPTF_CPU_PASSIVE	80
 #define DPTF_CPU_CRITICAL	90
diff --git a/src/mainboard/google/rambi/variants/winky/include/variant/acpi/mainboard.asl b/src/mainboard/google/rambi/variants/winky/include/variant/acpi/mainboard.asl
index 184ef83482..c28563f486 100644
--- a/src/mainboard/google/rambi/variants/winky/include/variant/acpi/mainboard.asl
+++ b/src/mainboard/google/rambi/variants/winky/include/variant/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. */
 
 /* Atmel trackpad */
 #include <mainboard/google/rambi/acpi/trackpad_atmel.asl>
diff --git a/src/mainboard/google/rambi/variants/winky/include/variant/onboard.h b/src/mainboard/google/rambi/variants/winky/include/variant/onboard.h
index 0f554211d5..f3666de0d1 100644
--- a/src/mainboard/google/rambi/variants/winky/include/variant/onboard.h
+++ b/src/mainboard/google/rambi/variants/winky/include/variant/onboard.h
@@ -1,16 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef ONBOARD_H
 #define ONBOARD_H
diff --git a/src/mainboard/google/rambi/variants/winky/include/variant/variant.h b/src/mainboard/google/rambi/variants/winky/include/variant/variant.h
index 402270fc92..be78c12226 100644
--- a/src/mainboard/google/rambi/variants/winky/include/variant/variant.h
+++ b/src/mainboard/google/rambi/variants/winky/include/variant/variant.h
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef VARIANT_H
 #define VARIANT_H
diff --git a/src/mainboard/google/rambi/w25q64.c b/src/mainboard/google/rambi/w25q64.c
index 104414265f..d85a4a66dc 100644
--- a/src/mainboard/google/rambi/w25q64.c
+++ b/src/mainboard/google/rambi/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 <string.h>
 #include <soc/spi.h>