src/arch/riscv: Convert to SPDX license header

This also drops individual copyright notices, all mentioned authors in
that part of the tree are listed in AUTHORS.

Change-Id: I770c1afd9b68a40ec0e69818f24b5ef3ad4f1d35
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39283
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>

42 files changed, 84 insertions, 694 deletions

diff --git a/src/arch/riscv/Makefile.inc b/src/arch/riscv/Makefile.inc
index 003852324b..17f225a523 100644
--- a/src/arch/riscv/Makefile.inc
+++ b/src/arch/riscv/Makefile.inc
@@ -1,19 +1,8 @@
 ################################################################################
 ##
+## SPDX-License-Identifier: GPL-2.0-only
 ## This file is part of the coreboot project.
 ##
-## Copyright (C) 2014 The ChromiumOS Authors
-## Copyright (C) 2018 HardenedLinux
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
 ################################################################################
 
 ################################################################################
diff --git a/src/arch/riscv/arch_timer.c b/src/arch/riscv/arch_timer.c
index 55b1f723ee..af5db5ed61 100644
--- a/src/arch/riscv/arch_timer.c
+++ b/src/arch/riscv/arch_timer.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2018 Philipp Hug <philipp@hug.cx>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <device/mmio.h>
 #include <arch/encoding.h>
diff --git a/src/arch/riscv/boot.c b/src/arch/riscv/boot.c
index f9f94a7086..0e6e2233f2 100644
--- a/src/arch/riscv/boot.c
+++ b/src/arch/riscv/boot.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2013 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <program_loading.h>
 #include <vm.h>
diff --git a/src/arch/riscv/bootblock.S b/src/arch/riscv/bootblock.S
index b0796f9fbc..b25a541949 100644
--- a/src/arch/riscv/bootblock.S
+++ b/src/arch/riscv/bootblock.S
@@ -1,18 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 /*
  * Early initialization code for RISC-V
- *
- * Copyright 2013 Google Inc.
- * Copyright 2016 Jonathan Neuschäfer <j.neuschaefer@gmx.net>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
- * GNU General Public License for more details.
  */
 
 #include <arch/encoding.h>
diff --git a/src/arch/riscv/fit_payload.c b/src/arch/riscv/fit_payload.c
index 63cda846fc..58d40f3959 100644
--- a/src/arch/riscv/fit_payload.c
+++ b/src/arch/riscv/fit_payload.c
@@ -1,18 +1,5 @@
-/*
- * Copyright 2013 Google Inc.
- * Copyright 2018 Facebook, Inc.
- * Copyright 2019 9elements Agency GmbH <patrick.rudolph@9elements.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
 
 #include <cbfs.h>
 #include <commonlib/bsd/compression.h>
diff --git a/src/arch/riscv/fp_asm.S b/src/arch/riscv/fp_asm.S
index 9c6cc650d8..5961047aa9 100644
--- a/src/arch/riscv/fp_asm.S
+++ b/src/arch/riscv/fp_asm.S
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /*
  * This file define some function used to swap value between memory
diff --git a/src/arch/riscv/include/arch/barrier.h b/src/arch/riscv/include/arch/barrier.h
index 257e2a2bc3..d5e61e8b47 100644
--- a/src/arch/riscv/include/arch/barrier.h
+++ b/src/arch/riscv/include/arch/barrier.h
@@ -1,33 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2014 Google Inc.
- * Copyright 2016 Jonathan Neuschäfer <j.neuschaefer@gmx.net>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
+/* This file is part of the coreboot project. */
 
 #ifndef __ARCH_BARRIER_H_
 #define __ARCH_BARRIER_H__
diff --git a/src/arch/riscv/include/arch/boot.h b/src/arch/riscv/include/arch/boot.h
index c05c669f00..be1e6f1ce3 100644
--- a/src/arch/riscv/include/arch/boot.h
+++ b/src/arch/riscv/include/arch/boot.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 Jonathan Neuschäfer
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 ARCH_RISCV_INCLUDE_ARCH_BOOT_H
 #define ARCH_RISCV_INCLUDE_ARCH_BOOT_H
diff --git a/src/arch/riscv/include/arch/byteorder.h b/src/arch/riscv/include/arch/byteorder.h
index 37cb8b6df6..096ef7585a 100644
--- a/src/arch/riscv/include/arch/byteorder.h
+++ b/src/arch/riscv/include/arch/byteorder.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 _BYTEORDER_H
 #define _BYTEORDER_H
diff --git a/src/arch/riscv/include/arch/cache.h b/src/arch/riscv/include/arch/cache.h
index 37d0662de8..b42ad95ea0 100644
--- a/src/arch/riscv/include/arch/cache.h
+++ b/src/arch/riscv/include/arch/cache.h
@@ -1,32 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2017 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
+/* This file is part of the coreboot project. */
 
 #ifndef ARCH_CACHE_H
 #define ARCH_CACHE_H
diff --git a/src/arch/riscv/include/arch/cbconfig.h b/src/arch/riscv/include/arch/cbconfig.h
index 9467f52646..fedc8bdcc6 100644
--- a/src/arch/riscv/include/arch/cbconfig.h
+++ b/src/arch/riscv/include/arch/cbconfig.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2016 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 _ARCH_CBCONFIG_H_
 #define _ARCH_CBCONFIG_H_
diff --git a/src/arch/riscv/include/arch/cpu.h b/src/arch/riscv/include/arch/cpu.h
index c62199e3f0..e249aa3964 100644
--- a/src/arch/riscv/include/arch/cpu.h
+++ b/src/arch/riscv/include/arch/cpu.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2012 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 __ARCH_CPU_H__
 #define __ARCH_CPU_H__
diff --git a/src/arch/riscv/include/arch/encoding.h b/src/arch/riscv/include/arch/encoding.h
index f84c9d4a9d..8aae565ba0 100644
--- a/src/arch/riscv/include/arch/encoding.h
+++ b/src/arch/riscv/include/arch/encoding.h
@@ -1,29 +1,5 @@
-/*
- * Copyright (c) 2010-2017, The Regents of the University of California
- * (Regents).  All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Regents nor the
- *    names of its contributors may be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
- * OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
- * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
+/* SPDX-License-Identifier: BSD-4-Clause-UC */
+/* This file is part of the coreboot project. */
 
 #ifndef RISCV_CSR_ENCODING_H
 #define RISCV_CSR_ENCODING_H
diff --git a/src/arch/riscv/include/arch/errno.h b/src/arch/riscv/include/arch/errno.h
index 6f80ee5afd..1aa8eebb87 100644
--- a/src/arch/riscv/include/arch/errno.h
+++ b/src/arch/riscv/include/arch/errno.h
@@ -1,29 +1,5 @@
-/*
- * Copyright (c) 2013, The Regents of the University of California (Regents).
- * All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Regents nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
- * OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
- * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
+/* SPDX-License-Identifier: BSD-4-Clause-UC */
+/* This file is part of the coreboot project. */
 
 #ifndef _RISCV_ERRNO_BASE_H
 #define _RISCV_ERRNO_BASE_H
diff --git a/src/arch/riscv/include/arch/exception.h b/src/arch/riscv/include/arch/exception.h
index 6fbbdf0a89..3e8da6c0f4 100644
--- a/src/arch/riscv/include/arch/exception.h
+++ b/src/arch/riscv/include/arch/exception.h
@@ -1,31 +1,5 @@
-/*
- * This file is part of the libpayload project.
- *
- * Copyright 2013 Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
+/* SPDX-License-Identifier: BSD-3-Clause */
+/* This file is part of the coreboot project. */
 
 #ifndef _ARCH_EXCEPTION_H
 #define _ARCH_EXCEPTION_H
diff --git a/src/arch/riscv/include/arch/header.ld b/src/arch/riscv/include/arch/header.ld
index 4b1104778c..1168b37b8c 100644
--- a/src/arch/riscv/include/arch/header.ld
+++ b/src/arch/riscv/include/arch/header.ld
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2014 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <rules.h>
 
diff --git a/src/arch/riscv/include/arch/hlt.h b/src/arch/riscv/include/arch/hlt.h
index a955ebbb0c..4020defe30 100644
--- a/src/arch/riscv/include/arch/hlt.h
+++ b/src/arch/riscv/include/arch/hlt.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. */
 
 static __always_inline void hlt(void)
 {
diff --git a/src/arch/riscv/include/arch/memlayout.h b/src/arch/riscv/include/arch/memlayout.h
index ac707d0978..fcbe6a7042 100644
--- a/src/arch/riscv/include/arch/memlayout.h
+++ b/src/arch/riscv/include/arch/memlayout.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2014 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /* This file contains macro definitions for memlayout.ld linker scripts. */
 
diff --git a/src/arch/riscv/include/arch/mmio.h b/src/arch/riscv/include/arch/mmio.h
index 4cbc07bbc7..e66629e4ad 100644
--- a/src/arch/riscv/include/arch/mmio.h
+++ b/src/arch/riscv/include/arch/mmio.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 __ARCH_MMIO_H__
 #define __ARCH_MMIO_H__
diff --git a/src/arch/riscv/include/arch/pmp.h b/src/arch/riscv/include/arch/pmp.h
index 6cdb997220..8335349e4f 100644
--- a/src/arch/riscv/include/arch/pmp.h
+++ b/src/arch/riscv/include/arch/pmp.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 __RISCV_PMP_H__
 #define __RISCV_PMP_H__
diff --git a/src/arch/riscv/include/arch/smp/atomic.h b/src/arch/riscv/include/arch/smp/atomic.h
index de7fd19bd3..1ac6e79a9a 100644
--- a/src/arch/riscv/include/arch/smp/atomic.h
+++ b/src/arch/riscv/include/arch/smp/atomic.h
@@ -1,30 +1,5 @@
-/*
- * Copyright (c) 2013, The Regents of the University of California (Regents).
- * Copyright (c) 2018, HardenedLinux.
- * All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Regents nor the
- *    names of its contributors may be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
- * OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
- * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
+/* SPDX-License-Identifier: BSD-4-Clause-UC */
+/* This file is part of the coreboot project. */
 
 #ifndef _RISCV_ATOMIC_H
 #define _RISCV_ATOMIC_H
diff --git a/src/arch/riscv/include/arch/smp/smp.h b/src/arch/riscv/include/arch/smp/smp.h
index e996404476..353f8f5f36 100644
--- a/src/arch/riscv/include/arch/smp/smp.h
+++ b/src/arch/riscv/include/arch/smp/smp.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 _RISCV_SMP_H
 #define _RISCV_SMP_H
diff --git a/src/arch/riscv/include/arch/smp/spinlock.h b/src/arch/riscv/include/arch/smp/spinlock.h
index 95e60bfefc..c9c2e6c02b 100644
--- a/src/arch/riscv/include/arch/smp/spinlock.h
+++ b/src/arch/riscv/include/arch/smp/spinlock.h
@@ -1,17 +1,6 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 ARCH_SMP_SPINLOCK_H
 #define ARCH_SMP_SPINLOCK_H
 
diff --git a/src/arch/riscv/include/arch/stages.h b/src/arch/riscv/include/arch/stages.h
index 138298fd03..2d8166894f 100644
--- a/src/arch/riscv/include/arch/stages.h
+++ b/src/arch/riscv/include/arch/stages.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013 The ChromiumOS Authors
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef __ARCH_STAGES_H
 #define __ARCH_STAGES_H
diff --git a/src/arch/riscv/include/bits.h b/src/arch/riscv/include/bits.h
index d824f3ec98..8afb14a5d7 100644
--- a/src/arch/riscv/include/bits.h
+++ b/src/arch/riscv/include/bits.h
@@ -1,29 +1,5 @@
-/*
- * Copyright (c) 2013, The Regents of the University of California (Regents).
- * All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Regents nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
- * OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
- * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
+/* SPDX-License-Identifier: BSD-4-Clause-UC */
+/* This file is part of the coreboot project. */
 
 #ifndef _BITS_H
 #define _BITS_H
diff --git a/src/arch/riscv/include/mcall.h b/src/arch/riscv/include/mcall.h
index d7d67ce33b..44b2d27334 100644
--- a/src/arch/riscv/include/mcall.h
+++ b/src/arch/riscv/include/mcall.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013 The ChromiumOS Authors
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #ifndef _MCALL_H
 #define _MCALL_H
diff --git a/src/arch/riscv/include/sbi.h b/src/arch/riscv/include/sbi.h
index 2943704a84..2905310b88 100644
--- a/src/arch/riscv/include/sbi.h
+++ b/src/arch/riscv/include/sbi.h
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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 RISCV_SBI_H
 #define RISCV_SBI_H
diff --git a/src/arch/riscv/include/vm.h b/src/arch/riscv/include/vm.h
index 9f6236ea75..5c2b1d4f6a 100644
--- a/src/arch/riscv/include/vm.h
+++ b/src/arch/riscv/include/vm.h
@@ -1,29 +1,5 @@
-/*
- * Copyright (c) 2013, The Regents of the University of California (Regents).
- * All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Regents nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
- * OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
- * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
+/* SPDX-License-Identifier: BSD-4-Clause-UC */
+/* This file is part of the coreboot project. */
 
 #ifndef _VM_H
 #define _VM_H
diff --git a/src/arch/riscv/mcall.c b/src/arch/riscv/mcall.c
index afb17c1043..8e788a7c70 100644
--- a/src/arch/riscv/mcall.c
+++ b/src/arch/riscv/mcall.c
@@ -1,29 +1,5 @@
-/*
- * Copyright (c) 2013, The Regents of the University of California (Regents).
- * All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the Regents nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
- * SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
- * OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
- * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
- * HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE
- * MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- */
+/* SPDX-License-Identifier: BSD-4-Clause-UC */
+/* This file is part of the coreboot project. */
 
 #include <mcall.h>
 #include <string.h>
diff --git a/src/arch/riscv/misaligned.c b/src/arch/riscv/misaligned.c
index ebff2d6678..172b21524c 100644
--- a/src/arch/riscv/misaligned.c
+++ b/src/arch/riscv/misaligned.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <stddef.h>
 #include <stdint.h>
diff --git a/src/arch/riscv/misc.c b/src/arch/riscv/misc.c
index 1909dbc5f1..71bef1d787 100644
--- a/src/arch/riscv/misc.c
+++ b/src/arch/riscv/misc.c
@@ -1,15 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <delay.h>
 
diff --git a/src/arch/riscv/opensbi.c b/src/arch/riscv/opensbi.c
index 695c24f756..d9fdc2fb8e 100644
--- a/src/arch/riscv/opensbi.c
+++ b/src/arch/riscv/opensbi.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2019 9elements Agency GmbH <patrick.rudolph@9elements.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <sbi/fw_dynamic.h>
 #include <arch/boot.h>
diff --git a/src/arch/riscv/payload.c b/src/arch/riscv/payload.c
index 297d30d2a5..715d7f378c 100644
--- a/src/arch/riscv/payload.c
+++ b/src/arch/riscv/payload.c
@@ -1,19 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2016 Google Inc
- * Copyright (C) 2018 HardenedLinux
- * Copyright (C) 2018 Jonathan Neuschäfer
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <program_loading.h>
 #include <stdint.h>
diff --git a/src/arch/riscv/pmp.c b/src/arch/riscv/pmp.c
index 5e32f9ca23..e707051a85 100644
--- a/src/arch/riscv/pmp.c
+++ b/src/arch/riscv/pmp.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See 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/encoding.h>
 #include <stdint.h>
diff --git a/src/arch/riscv/ramstage.S b/src/arch/riscv/ramstage.S
index 2468c231bc..676c59ba1f 100644
--- a/src/arch/riscv/ramstage.S
+++ b/src/arch/riscv/ramstage.S
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See 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/encoding.h>
 #include <bits.h>
diff --git a/src/arch/riscv/romstage.c b/src/arch/riscv/romstage.c
index d5f5a43ce1..0991c681b4 100644
--- a/src/arch/riscv/romstage.c
+++ b/src/arch/riscv/romstage.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2014 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 /*
  * Entry points must be placed at the location the previous stage jumps
diff --git a/src/arch/riscv/sbi.c b/src/arch/riscv/sbi.c
index 27701895dd..bbde935ea9 100644
--- a/src/arch/riscv/sbi.c
+++ b/src/arch/riscv/sbi.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <mcall.h>
 #include <stdint.h>
diff --git a/src/arch/riscv/smp.c b/src/arch/riscv/smp.c
index 95d116a629..eb435d85a4 100644
--- a/src/arch/riscv/smp.c
+++ b/src/arch/riscv/smp.c
@@ -1,17 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2018 HardenedLinux.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <stddef.h>
 #include <arch/encoding.h>
diff --git a/src/arch/riscv/tables.c b/src/arch/riscv/tables.c
index c5bcab0661..8a60b43e62 100644
--- a/src/arch/riscv/tables.c
+++ b/src/arch/riscv/tables.c
@@ -1,19 +1,5 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2003 Eric Biederman
- * Copyright (C) 2005 Steve Magnani
- * Copyright (C) 2008-2009 coresystems GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 
 #include <bootmem.h>
 #include <boot/tables.h>
diff --git a/src/arch/riscv/trap_handler.c b/src/arch/riscv/trap_handler.c
index 6b39faba79..91db11479b 100644
--- a/src/arch/riscv/trap_handler.c
+++ b/src/arch/riscv/trap_handler.c
@@ -1,17 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 /*
  * Early initialization code for riscv
- *
- * Copyright 2015 Google Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
- * GNU General Public License for more details.
  */
 
 #include <arch/encoding.h>
diff --git a/src/arch/riscv/trap_util.S b/src/arch/riscv/trap_util.S
index 8aba48b986..0e7d53bfcf 100644
--- a/src/arch/riscv/trap_util.S
+++ b/src/arch/riscv/trap_util.S
@@ -1,17 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 /*
  * Early initialization code for riscv
- *
- * Copyright 2015 Google Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
- * GNU General Public License for more details.
  */
 
 #include <bits.h>
diff --git a/src/arch/riscv/virtual_memory.c b/src/arch/riscv/virtual_memory.c
index 2f13ecb398..431f711ba3 100644
--- a/src/arch/riscv/virtual_memory.c
+++ b/src/arch/riscv/virtual_memory.c
@@ -1,17 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 /*
  * Early initialization code for riscv virtual memory
- *
- * Copyright 2015 Google Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
- * GNU General Public License for more details.
  */
 
 #include <arch/cpu.h>