xref: /gem5/ext/libfdt/README

libfdt is an open-source library released under the BSD license:

libfdt - Flat Device Tree manipulation

    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.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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)
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libfdt allows flattened device trees to be represented as a
"blob", which is a compact flattened format. This is useful,
particularly for embedded systems, such as ARM, because it
allows many different devices to be included in a single binary
allowing for a high level of portability.

The source and more information about the library can be found
here:

http://www.denx.de/wiki/U-Boot/UBootFdtInfo

1) D. Gibson, B. Herrenschmidt. Device trees everywhere. 2006.
http://ozlabs.org/~dgibson/papers/dtc-paper.pdf