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  •   U-Boot is Free Software.  It is copyrighted by Wolfgang Denk and
    many others who contributed code (see the actual source code and the
    git commit messages for details).  You can redistribute U-Boot and/or
    modify it under the terms of version 2 of the GNU General Public
    License as published by the Free Software Foundation.  Most of it can
    also be distributed, at your option, under any later version of the
    GNU General Public License -- see individual files for exceptions.
    
      NOTE! This license does *not* cover the so-called "standalone"
    applications that use U-Boot services by means of the jump table
    provided by U-Boot exactly for this purpose - this is merely
    considered normal use of U-Boot, and does *not* fall under the
    heading of "derived work" -- see file  Licenses/Exceptions  for
    details.
    
      Also note that the GPL and the other licenses are copyrighted by
    the Free Software Foundation and other organizations, but the
    instance of code that they refer to (the U-Boot source code) is
    copyrighted by me and others who actually wrote it.
    -- Wolfgang Denk
    
    
    Like many other projects, U-Boot has a tradition of including big
    blocks of License headers in all files.  This not only blows up the
    source code with mostly redundant information, but also makes it very
    difficult to generate License Clearing Reports.  An additional problem
    is that even the same licenses are referred to by a number of
    slightly varying text blocks (full, abbreviated, different
    indentation, line wrapping and/or white space, with obsolete address
    information, ...) which makes automatic processing a nightmare.
    
    To make this easier, such license headers in the source files will be
    replaced with a single line reference to Unique License Identifiers
    as defined by the Linux Foundation's SPDX project [1].  For example,
    in a source file the full "GPL v2.0 or later" header text will be
    replaced by a single line:
    
    	SPDX-License-Identifier:	GPL-2.0+
    
    We use the SPDX Unique License Identifiers here; these are available
    at [2].
    
    [1] http://spdx.org/
    [2] http://spdx.org/licenses/
    
    Full name					SPDX Identifier	OSI Approved	File name	URI
    =======================================================================================================================================
    GNU General Public License v2.0 only		GPL-2.0		Y		gpl-2.0.txt	http://www.gnu.org/licenses/gpl-2.0.txt
    GNU General Public License v2.0 or later	GPL-2.0+	Y		gpl-2.0.txt	http://www.gnu.org/licenses/gpl-2.0.txt
    
    GNU Library General Public License v2 or later	LGPL-2.0+	Y		lgpl-2.0.txt	http://www.gnu.org/licenses/old-licenses/lgpl-2.0.txt
    
    GNU Lesser General Public License v2.1 or later	LGPL-2.1+	Y		lgpl-2.1.txt	http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt