diff --git a/arch/mips/kernel/gpio_txx9.c b/arch/mips/kernel/gpio_txx9.c
index cbd47f3..8c08361 100644
--- a/arch/mips/kernel/gpio_txx9.c
+++ b/arch/mips/kernel/gpio_txx9.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * A gpio chip driver for TXx9 SoCs
  *
  * Copyright (C) 2008 Atsushi Nemoto <anemo@mba.ocn.ne.jp>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/init.h>
diff --git a/arch/mips/kernel/mips_machine.c b/arch/mips/kernel/mips_machine.c
index 8760975..4c50964 100644
--- a/arch/mips/kernel/mips_machine.c
+++ b/arch/mips/kernel/mips_machine.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
- *
  */
 #include <linux/mm.h>
 #include <linux/string.h>
diff --git a/arch/mips/kernel/perf_event.c b/arch/mips/kernel/perf_event.c
index f298eb2..5d7a9c0 100644
--- a/arch/mips/kernel/perf_event.c
+++ b/arch/mips/kernel/perf_event.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Linux performance counter support for MIPS.
  *
@@ -8,10 +9,6 @@
  * based on the sparc64 perf event code and the x86 code. Performance
  * counter access is based on the MIPS Oprofile code. And the callchain
  * support references the code of MIPS stacktrace.c.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/perf_event.h>
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index d67fb64..e0ebaa0 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Linux performance counter support for MIPS.
  *
@@ -9,10 +10,6 @@
  * based on the sparc64 perf event code and the x86 code. Performance
  * counter access is based on the MIPS Oprofile code. And the callchain
  * support references the code of MIPS stacktrace.c.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/cpumask.h>
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 28bf019..9e50dc8 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * MIPS support for CONFIG_OF device tree support
  *
  * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/init.h>