1. 10e4779 SPDX: Convert all of our single license tags to Linux Kernel style by Tom Rini · Sun May 06 17:58:06 2018 -0400
  2. d79de1d Add GPL-2.0+ SPDX-License-Identifier to source files by Wolfgang Denk · Mon Jul 08 09:37:19 2013 +0200
  3. 3db6055 sh: Divided macro for zImage and add asm/zimage.h by Nobuhiro Iwamatsu · Wed Dec 08 13:46:36 2010 +0900