src/arch/ppc64: Convert to SPDX license header

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

Change-Id: I19b1c379b474dd011e2d0f8c8202ff1351c9290d
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39281
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/arch/ppc64/Makefile.inc b/src/arch/ppc64/Makefile.inc
index fae4c92..1c35f6f 100644
--- a/src/arch/ppc64/Makefile.inc
+++ b/src/arch/ppc64/Makefile.inc
@@ -1,16 +1,8 @@
 ################################################################################
 ##
+## SPDX-License-Identifier: GPL-2.0-only
 ## This file is part of the coreboot project.
 ##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
 ################################################################################
 
 ppc64_flags = -I$(src)/arch/ppc64/ -mbig-endian -mcpu=power8 -mtune=power8
diff --git a/src/arch/ppc64/boot.c b/src/arch/ppc64/boot.c
index 6c13761..1bd1c09 100644
--- a/src/arch/ppc64/boot.c
+++ b/src/arch/ppc64/boot.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 <program_loading.h>
 
diff --git a/src/arch/ppc64/bootblock.S b/src/arch/ppc64/bootblock.S
index 2628e0d..4c13bc9 100644
--- a/src/arch/ppc64/bootblock.S
+++ b/src/arch/ppc64/bootblock.S
@@ -1,16 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
 /*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
- * GNU General Public License for more details.
- *
  * Early initialization code for POWER8.
  */
 
diff --git a/src/arch/ppc64/id.ld b/src/arch/ppc64/id.ld
index 9323756..4f6853f 100644
--- a/src/arch/ppc64/id.ld
+++ b/src/arch/ppc64/id.ld
@@ -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. */
 
 SECTIONS {
 	. = (0xffffffff - CONFIG_ID_SECTION_OFFSET) - (__id_end - __id_start) + 1;
diff --git a/src/arch/ppc64/include/arch/byteorder.h b/src/arch/ppc64/include/arch/byteorder.h
index 37cb8b6..096ef75 100644
--- a/src/arch/ppc64/include/arch/byteorder.h
+++ b/src/arch/ppc64/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/ppc64/include/arch/cache.h b/src/arch/ppc64/include/arch/cache.h
index 3717447..1f0b9c2 100644
--- a/src/arch/ppc64/include/arch/cache.h
+++ b/src/arch/ppc64/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/ppc64/include/arch/cbconfig.h b/src/arch/ppc64/include/arch/cbconfig.h
index 35c1387..fedc8bd 100644
--- a/src/arch/ppc64/include/arch/cbconfig.h
+++ b/src/arch/ppc64/include/arch/cbconfig.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_CBCONFIG_H_
 #define _ARCH_CBCONFIG_H_
diff --git a/src/arch/ppc64/include/arch/cpu.h b/src/arch/ppc64/include/arch/cpu.h
index 8981690..4714b7c 100644
--- a/src/arch/ppc64/include/arch/cpu.h
+++ b/src/arch/ppc64/include/arch/cpu.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_CPU_H__
 #define __ARCH_CPU_H__
diff --git a/src/arch/ppc64/include/arch/exception.h b/src/arch/ppc64/include/arch/exception.h
index 07030e5..c88b55c 100644
--- a/src/arch/ppc64/include/arch/exception.h
+++ b/src/arch/ppc64/include/arch/exception.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_EXCEPTION_H
 #define _ARCH_EXCEPTION_H
diff --git a/src/arch/ppc64/include/arch/header.ld b/src/arch/ppc64/include/arch/header.ld
index badeefd..d4aa134 100644
--- a/src/arch/ppc64/include/arch/header.ld
+++ b/src/arch/ppc64/include/arch/header.ld
@@ -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. */
 
 /* We use ELF as output format. So that we can debug the code in some form. */
 OUTPUT_ARCH(powerpc)
diff --git a/src/arch/ppc64/include/arch/hlt.h b/src/arch/ppc64/include/arch/hlt.h
index 1ba1e35..37d4302 100644
--- a/src/arch/ppc64/include/arch/hlt.h
+++ b/src/arch/ppc64/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/ppc64/include/arch/io.h b/src/arch/ppc64/include/arch/io.h
index 804d7dc..1d86596 100644
--- a/src/arch/ppc64/include/arch/io.h
+++ b/src/arch/ppc64/include/arch/io.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 _ASM_IO_H
 #define _ASM_IO_H
diff --git a/src/arch/ppc64/include/arch/memlayout.h b/src/arch/ppc64/include/arch/memlayout.h
index 09e87c9..c65649c 100644
--- a/src/arch/ppc64/include/arch/memlayout.h
+++ b/src/arch/ppc64/include/arch/memlayout.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. */
 
 /* This file contains macro definitions for memlayout.ld linker scripts. */
 
diff --git a/src/arch/ppc64/include/arch/mmio.h b/src/arch/ppc64/include/arch/mmio.h
index 8ffb816..55609ac 100644
--- a/src/arch/ppc64/include/arch/mmio.h
+++ b/src/arch/ppc64/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/ppc64/include/arch/stages.h b/src/arch/ppc64/include/arch/stages.h
index 37e9f85..92caebc 100644
--- a/src/arch/ppc64/include/arch/stages.h
+++ b/src/arch/ppc64/include/arch/stages.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_STAGES_H
 #define __ARCH_STAGES_H
diff --git a/src/arch/ppc64/prologue.inc b/src/arch/ppc64/prologue.inc
index 9e22eb3..7685f5b 100644
--- a/src/arch/ppc64/prologue.inc
+++ b/src/arch/ppc64/prologue.inc
@@ -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. */
 
 .section ".rom.data", "a", @progbits
 .section ".rom.text", "ax", @progbits
diff --git a/src/arch/ppc64/rom_media.c b/src/arch/ppc64/rom_media.c
index 0fc8be2..90e0373 100644
--- a/src/arch/ppc64/rom_media.c
+++ b/src/arch/ppc64/rom_media.c
@@ -1,16 +1,6 @@
-/*
- * This file is part of the coreboot project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* This file is part of the coreboot project. */
+
 #include <boot_device.h>
 
 /* This assumes that the CBFS resides at 0x0, which is true for the default
diff --git a/src/arch/ppc64/stages.c b/src/arch/ppc64/stages.c
index aacf45f..edb49ce 100644
--- a/src/arch/ppc64/stages.c
+++ b/src/arch/ppc64/stages.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. */
 
 /*
  * This file contains entry/exit functions for each stage during coreboot
diff --git a/src/arch/ppc64/tables.c b/src/arch/ppc64/tables.c
index e9de4bf..eafc87e 100644
--- a/src/arch/ppc64/tables.c
+++ b/src/arch/ppc64/tables.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 <bootmem.h>
 #include <boot/tables.h>