UBootConfiguration < DULG

%SECTION0{name=UBootConfiguration}% Configuration

After changing to the directory with the U-Boot source code you should
make sure that there are no build results from any previous
configurations left:

<verbatim>
$ make distclean
</verbatim>

The following (model) command configures U-Boot for the %BOARDNAME% board:

<pre>
$ make %BOARD%_config
</pre>

<!-- Add hint for boards with more than one configuration -->
%INCLUDE{DULGData_%BOARD%.UBootConfig}%

And finally we can compile the tools and U-Boot itself:

<pre>
$ make all
</pre>

By default the build is performed locally and the objects are saved in
the source directory. One of the two methods can be used to change
this behaviour and build U-Boot to some external directory:

1. Add O= to the make command line invocations:

<pre>
make O=/tmp/build distclean
make O=/tmp/build %BOARD%_config
make O=/tmp/build all
</pre>

Note that if the 'O=output/dir' option is used then it must be used
for all invocations of make.

2. Set environment variable =BUILD_DIR= to point to the desired
location:

<pre>
export BUILD_DIR=/tmp/build
make distclean
make %BOARD%_config
make all
</pre>

Note that the command line "O=" setting overrides the =BUILD_DIR=
environment variable.
5.2. Unpacking the Source Code		1. Abstract		5.4. Installation
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