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<section id="spear-arm-linux-overview">
<h1>SPEAr ARM Linux Overview<a class="headerlink" href="#spear-arm-linux-overview" title="Link to this heading">¶</a></h1>
<section id="introduction">
<h2>Introduction<a class="headerlink" href="#introduction" title="Link to this heading">¶</a></h2>
<blockquote>
<div><p>SPEAr (Structured Processor Enhanced Architecture).
weblink : <a class="reference external" href="http://www.st.com/spear">http://www.st.com/spear</a></p>
<p>The ST Microelectronics SPEAr range of ARM9/CortexA9 System-on-Chip CPUs are
supported by the ‘spear’ platform of ARM Linux. Currently SPEAr1310,
SPEAr1340, SPEAr300, SPEAr310, SPEAr320 and SPEAr600 SOCs are supported.</p>
<p>Hierarchy in SPEAr is as follows:</p>
<p>SPEAr (Platform)</p>
<blockquote>
<div><ul class="simple">
<li><dl class="simple">
<dt>SPEAr3XX (3XX SOC series, based on ARM9)</dt><dd><ul>
<li><dl class="simple">
<dt>SPEAr300 (SOC)</dt><dd><ul>
<li><p>SPEAr300 Evaluation Board</p></li>
</ul>
</dd>
</dl>
</li>
<li><dl class="simple">
<dt>SPEAr310 (SOC)</dt><dd><ul>
<li><p>SPEAr310 Evaluation Board</p></li>
</ul>
</dd>
</dl>
</li>
<li><dl class="simple">
<dt>SPEAr320 (SOC)</dt><dd><ul>
<li><p>SPEAr320 Evaluation Board</p></li>
</ul>
</dd>
</dl>
</li>
</ul>
</dd>
</dl>
</li>
<li><dl class="simple">
<dt>SPEAr6XX (6XX SOC series, based on ARM9)</dt><dd><ul>
<li><dl class="simple">
<dt>SPEAr600 (SOC)</dt><dd><ul>
<li><p>SPEAr600 Evaluation Board</p></li>
</ul>
</dd>
</dl>
</li>
</ul>
</dd>
</dl>
</li>
<li><dl class="simple">
<dt>SPEAr13XX (13XX SOC series, based on ARM CORTEXA9)</dt><dd><ul>
<li><dl class="simple">
<dt>SPEAr1310 (SOC)</dt><dd><ul>
<li><p>SPEAr1310 Evaluation Board</p></li>
</ul>
</dd>
</dl>
</li>
<li><dl class="simple">
<dt>SPEAr1340 (SOC)</dt><dd><ul>
<li><p>SPEAr1340 Evaluation Board</p></li>
</ul>
</dd>
</dl>
</li>
</ul>
</dd>
</dl>
</li>
</ul>
</div></blockquote>
</div></blockquote>
</section>
<section id="configuration">
<h2>Configuration<a class="headerlink" href="#configuration" title="Link to this heading">¶</a></h2>
<blockquote>
<div><p>A generic configuration is provided for each machine, and can be used as the
default by:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>make spear13xx_defconfig
make spear3xx_defconfig
make spear6xx_defconfig
</pre></div>
</div>
</div></blockquote>
</section>
<section id="layout">
<h2>Layout<a class="headerlink" href="#layout" title="Link to this heading">¶</a></h2>
<blockquote>
<div><p>The common files for multiple machine families (SPEAr3xx, SPEAr6xx and
SPEAr13xx) are located in the platform code contained in arch/arm/plat-spear
with headers in plat/.</p>
<p>Each machine series have a directory with name arch/arm/mach-spear followed by
series name. Like mach-spear3xx, mach-spear6xx and mach-spear13xx.</p>
<p>Common file for machines of spear3xx family is mach-spear3xx/spear3xx.c, for
spear6xx is mach-spear6xx/spear6xx.c and for spear13xx family is
mach-spear13xx/spear13xx.c. mach-spear* also contain soc/machine specific
files, like spear1310.c, spear1340.c spear300.c, spear310.c, spear320.c and
spear600.c. mach-spear* doesn’t contains board specific files as they fully
support Flattened Device Tree.</p>
</div></blockquote>
</section>
<section id="document-author">
<h2>Document Author<a class="headerlink" href="#document-author" title="Link to this heading">¶</a></h2>
<blockquote>
<div><p>Viresh Kumar <<a class="reference external" href="mailto:vireshk%40kernel.org">vireshk<span>@</span>kernel<span>.</span>org</a>>, (c) 2010-2012 ST Microelectronics</p>
</div></blockquote>
</section>
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