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      <li>Aspeed family boards (<code class="docutils literal notranslate"><span class="pre">*-bmc</span></code>, <code class="docutils literal notranslate"><span class="pre">ast2500-evb</span></code>, <code class="docutils literal notranslate"><span class="pre">ast2600-evb</span></code>)</li>
    
    
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  <div class="section" id="aspeed-family-boards-bmc-ast2500-evb-ast2600-evb">
<h1>Aspeed family boards (<code class="docutils literal notranslate"><span class="pre">*-bmc</span></code>, <code class="docutils literal notranslate"><span class="pre">ast2500-evb</span></code>, <code class="docutils literal notranslate"><span class="pre">ast2600-evb</span></code>)<a class="headerlink" href="#aspeed-family-boards-bmc-ast2500-evb-ast2600-evb" title="Permalink to this headline">¶</a></h1>
<p>The QEMU Aspeed machines model BMCs of various OpenPOWER systems and
Aspeed evaluation boards. They are based on different releases of the
Aspeed SoC : the AST2400 integrating an ARM926EJ-S CPU (400MHz), the
AST2500 with an ARM1176JZS CPU (800MHz) and more recently the AST2600
with dual cores ARM Cortex-A7 CPUs (1.2GHz).</p>
<p>The SoC comes with RAM, Gigabit ethernet, USB, SD/MMC, USB, SPI, I2C,
etc.</p>
<p>AST2400 SoC based machines :</p>
<ul class="simple">
<li><code class="docutils literal notranslate"><span class="pre">palmetto-bmc</span></code>         OpenPOWER Palmetto POWER8 BMC</li>
<li><code class="docutils literal notranslate"><span class="pre">quanta-q71l-bmc</span></code>      OpenBMC Quanta BMC</li>
</ul>
<p>AST2500 SoC based machines :</p>
<ul class="simple">
<li><code class="docutils literal notranslate"><span class="pre">ast2500-evb</span></code>          Aspeed AST2500 Evaluation board</li>
<li><code class="docutils literal notranslate"><span class="pre">romulus-bmc</span></code>          OpenPOWER Romulus POWER9 BMC</li>
<li><code class="docutils literal notranslate"><span class="pre">witherspoon-bmc</span></code>      OpenPOWER Witherspoon POWER9 BMC</li>
<li><code class="docutils literal notranslate"><span class="pre">sonorapass-bmc</span></code>       OCP SonoraPass BMC</li>
<li><code class="docutils literal notranslate"><span class="pre">swift-bmc</span></code>            OpenPOWER Swift BMC POWER9</li>
</ul>
<p>AST2600 SoC based machines :</p>
<ul class="simple">
<li><code class="docutils literal notranslate"><span class="pre">ast2600-evb</span></code>          Aspeed AST2600 Evaluation board (Cortex-A7)</li>
<li><code class="docutils literal notranslate"><span class="pre">tacoma-bmc</span></code>           OpenPOWER Witherspoon POWER9 AST2600 BMC</li>
</ul>
<div class="section" id="supported-devices">
<h2>Supported devices<a class="headerlink" href="#supported-devices" title="Permalink to this headline">¶</a></h2>
<blockquote>
<div><ul class="simple">
<li>SMP (for the AST2600 Cortex-A7)</li>
<li>Interrupt Controller (VIC)</li>
<li>Timer Controller</li>
<li>RTC Controller</li>
<li>I2C Controller</li>
<li>System Control Unit (SCU)</li>
<li>SRAM mapping</li>
<li>X-DMA Controller (basic interface)</li>
<li>Static Memory Controller (SMC or FMC) - Only SPI Flash support</li>
<li>SPI Memory Controller</li>
<li>USB 2.0 Controller</li>
<li>SD/MMC storage controllers</li>
<li>SDRAM controller (dummy interface for basic settings and training)</li>
<li>Watchdog Controller</li>
<li>GPIO Controller (Master only)</li>
<li>UART</li>
<li>Ethernet controllers</li>
<li>Front LEDs (PCA9552 on I2C bus)</li>
<li>LPC Peripheral Controller (a subset of subdevices are supported)</li>
<li>Hash/Crypto Engine (HACE) - Hash support only. TODO: HMAC and RSA</li>
</ul>
</div></blockquote>
</div>
<div class="section" id="missing-devices">
<h2>Missing devices<a class="headerlink" href="#missing-devices" title="Permalink to this headline">¶</a></h2>
<blockquote>
<div><ul class="simple">
<li>Coprocessor support</li>
<li>ADC (out of tree implementation)</li>
<li>PWM and Fan Controller</li>
<li>Slave GPIO Controller</li>
<li>Super I/O Controller</li>
<li>PCI-Express 1 Controller</li>
<li>Graphic Display Controller</li>
<li>PECI Controller</li>
<li>MCTP Controller</li>
<li>Mailbox Controller</li>
<li>Virtual UART</li>
<li>eSPI Controller</li>
<li>I3C Controller</li>
</ul>
</div></blockquote>
</div>
<div class="section" id="boot-options">
<h2>Boot options<a class="headerlink" href="#boot-options" title="Permalink to this headline">¶</a></h2>
<p>The Aspeed machines can be started using the <code class="docutils literal notranslate"><span class="pre">-kernel</span></code> option to
load a Linux kernel or from a firmware. Images can be downloaded from
the OpenBMC jenkins :</p>
<blockquote>
<div><a class="reference external" href="https://jenkins.openbmc.org/job/ci-openbmc/lastSuccessfulBuild/distro=ubuntu,label=docker-builder">https://jenkins.openbmc.org/job/ci-openbmc/lastSuccessfulBuild/distro=ubuntu,label=docker-builder</a></div></blockquote>
<p>or directly from the OpenBMC GitHub release repository :</p>
<blockquote>
<div><a class="reference external" href="https://github.com/openbmc/openbmc/releases">https://github.com/openbmc/openbmc/releases</a></div></blockquote>
<p>The image should be attached as an MTD drive. Run :</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ qemu-system-arm -M romulus-bmc -nic user <span class="se">\</span>
      -drive <span class="nv">file</span><span class="o">=</span>obmc-phosphor-image-romulus.static.mtd,format<span class="o">=</span>raw,if<span class="o">=</span>mtd -nographic
</pre></div>
</div>
<p>Options specific to Aspeed machines are :</p>
<blockquote>
<div><ul class="simple">
<li><code class="docutils literal notranslate"><span class="pre">execute-in-place</span></code> which emulates the boot from the CE0 flash
device by using the FMC controller to load the instructions, and
not simply from RAM. This takes a little longer.</li>
<li><code class="docutils literal notranslate"><span class="pre">fmc-model</span></code> to change the FMC Flash model. FW needs support for
the chip model to boot.</li>
<li><code class="docutils literal notranslate"><span class="pre">spi-model</span></code> to change the SPI Flash model.</li>
</ul>
</div></blockquote>
<p>For instance, to start the <code class="docutils literal notranslate"><span class="pre">ast2500-evb</span></code> machine with a different
FMC chip and a bigger (64M) SPI chip, use :</p>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>-M ast2500-evb,fmc-model<span class="o">=</span>mx25l25635e,spi-model<span class="o">=</span>mx66u51235f
</pre></div>
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