6 files changed, 6 insertions, 54 deletions
diff --git a/src/mainboard/google/slippy/Makefile.inc b/src/mainboard/google/slippy/Makefile.inc
index eb75196f2d..5040952733 100644
--- a/src/mainboard/google/slippy/Makefile.inc
+++ b/src/mainboard/google/slippy/Makefile.inc
@@ -2,15 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+## SPDX-License-Identifier: GPL-2.0-only
 
 ramstage-$(CONFIG_EC_GOOGLE_CHROMEEC) += ec.c
 
diff --git a/src/mainboard/google/slippy/cmos.layout b/src/mainboard/google/slippy/cmos.layout
index 014f442651..6e04c5b225 100644
--- a/src/mainboard/google/slippy/cmos.layout
+++ b/src/mainboard/google/slippy/cmos.layout
@@ -2,15 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+## SPDX-License-Identifier: GPL-2.0-only
 
 # -----------------------------------------------------------------
 entries
diff --git a/src/mainboard/google/slippy/variants/falco/Makefile.inc b/src/mainboard/google/slippy/variants/falco/Makefile.inc
index 650d12e740..9521fe52a3 100644
--- a/src/mainboard/google/slippy/variants/falco/Makefile.inc
+++ b/src/mainboard/google/slippy/variants/falco/Makefile.inc
@@ -2,15 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+## SPDX-License-Identifier: GPL-2.0-only
 
 ## DIMM SPD for on-board memory
 SPD_BIN = $(obj)/spd.bin
diff --git a/src/mainboard/google/slippy/variants/leon/Makefile.inc b/src/mainboard/google/slippy/variants/leon/Makefile.inc
index 2ba682e2ec..22dc4f8c59 100644
--- a/src/mainboard/google/slippy/variants/leon/Makefile.inc
+++ b/src/mainboard/google/slippy/variants/leon/Makefile.inc
@@ -2,15 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+## SPDX-License-Identifier: GPL-2.0-only
 
 ## DIMM SPD for on-board memory
 SPD_BIN = $(obj)/spd.bin
diff --git a/src/mainboard/google/slippy/variants/peppy/Makefile.inc b/src/mainboard/google/slippy/variants/peppy/Makefile.inc
index f43ccf5a4b..3a82a539e3 100644
--- a/src/mainboard/google/slippy/variants/peppy/Makefile.inc
+++ b/src/mainboard/google/slippy/variants/peppy/Makefile.inc
@@ -2,15 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+## SPDX-License-Identifier: GPL-2.0-only
 
 ## DIMM SPD for on-board memory
 SPD_BIN = $(obj)/spd.bin
diff --git a/src/mainboard/google/slippy/variants/wolf/Makefile.inc b/src/mainboard/google/slippy/variants/wolf/Makefile.inc
index 249f5633e8..926359d860 100644
--- a/src/mainboard/google/slippy/variants/wolf/Makefile.inc
+++ b/src/mainboard/google/slippy/variants/wolf/Makefile.inc
@@ -2,15 +2,7 @@
 ## This file is part of the coreboot project.
 ##
 ##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
+## SPDX-License-Identifier: GPL-2.0-only
 
 ## DIMM SPD for on-board memory
 SPD_BIN = $(obj)/spd.bin