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<li class="breadcrumb-item active">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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<section id="aspeed-family-boards-bmc-ast2500-evb-ast2600-evb">
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<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="Link to this heading"></a></h1>
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<p>The QEMU Aspeed machines model BMCs of various OpenPOWER systems and
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Aspeed evaluation boards. They are based on different releases of the
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Aspeed SoC : the AST2400 integrating an ARM926EJ-S CPU (400MHz), the
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AST2500 with an ARM1176JZS CPU (800MHz) and more recently the AST2600
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with dual cores ARM Cortex-A7 CPUs (1.2GHz).</p>
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<p>The SoC comes with RAM, Gigabit ethernet, USB, SD/MMC, USB, SPI, I2C,
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etc.</p>
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<p>AST2400 SoC based machines :</p>
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<ul class="simple">
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<li><p><code class="docutils literal notranslate"><span class="pre">palmetto-bmc</span></code> OpenPOWER Palmetto POWER8 BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">quanta-q71l-bmc</span></code> OpenBMC Quanta BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">supermicrox11-bmc</span></code> Supermicro X11 BMC</p></li>
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</ul>
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<p>AST2500 SoC based machines :</p>
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<ul class="simple">
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<li><p><code class="docutils literal notranslate"><span class="pre">ast2500-evb</span></code> Aspeed AST2500 Evaluation board</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">romulus-bmc</span></code> OpenPOWER Romulus POWER9 BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">witherspoon-bmc</span></code> OpenPOWER Witherspoon POWER9 BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">sonorapass-bmc</span></code> OCP SonoraPass BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">fp5280g2-bmc</span></code> Inspur FP5280G2 BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">g220a-bmc</span></code> Bytedance G220A BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">yosemitev2-bmc</span></code> Facebook YosemiteV2 BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">tiogapass-bmc</span></code> Facebook Tiogapass BMC</p></li>
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</ul>
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<p>AST2600 SoC based machines :</p>
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<ul class="simple">
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<li><p><code class="docutils literal notranslate"><span class="pre">ast2600-evb</span></code> Aspeed AST2600 Evaluation board (Cortex-A7)</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">tacoma-bmc</span></code> OpenPOWER Witherspoon POWER9 AST2600 BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">rainier-bmc</span></code> IBM Rainier POWER10 BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">fuji-bmc</span></code> Facebook Fuji BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">bletchley-bmc</span></code> Facebook Bletchley BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">fby35-bmc</span></code> Facebook fby35 BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">qcom-dc-scm-v1-bmc</span></code> Qualcomm DC-SCM V1 BMC</p></li>
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<li><p><code class="docutils literal notranslate"><span class="pre">qcom-firework-bmc</span></code> Qualcomm Firework BMC</p></li>
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</ul>
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<section id="supported-devices">
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<h2>Supported devices<a class="headerlink" href="#supported-devices" title="Link to this heading"></a></h2>
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<blockquote>
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<div><ul class="simple">
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<li><p>SMP (for the AST2600 Cortex-A7)</p></li>
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<li><p>Interrupt Controller (VIC)</p></li>
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<li><p>Timer Controller</p></li>
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<li><p>RTC Controller</p></li>
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<li><p>I2C Controller, including the new register interface of the AST2600</p></li>
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<li><p>System Control Unit (SCU)</p></li>
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<li><p>SRAM mapping</p></li>
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<li><p>X-DMA Controller (basic interface)</p></li>
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<li><p>Static Memory Controller (SMC or FMC) - Only SPI Flash support</p></li>
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<li><p>SPI Memory Controller</p></li>
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<li><p>USB 2.0 Controller</p></li>
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<li><p>SD/MMC storage controllers</p></li>
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<li><p>SDRAM controller (dummy interface for basic settings and training)</p></li>
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<li><p>Watchdog Controller</p></li>
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<li><p>GPIO Controller (Master only)</p></li>
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<li><p>UART</p></li>
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<li><p>Ethernet controllers</p></li>
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<li><p>Front LEDs (PCA9552 on I2C bus)</p></li>
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<li><p>LPC Peripheral Controller (a subset of subdevices are supported)</p></li>
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<li><p>Hash/Crypto Engine (HACE) - Hash support only. TODO: HMAC and RSA</p></li>
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<li><p>ADC</p></li>
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<li><p>Secure Boot Controller (AST2600)</p></li>
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<li><p>eMMC Boot Controller (dummy)</p></li>
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<li><p>PECI Controller (minimal)</p></li>
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<li><p>I3C Controller</p></li>
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</ul>
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</div></blockquote>
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</section>
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||
<section id="missing-devices">
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||
<h2>Missing devices<a class="headerlink" href="#missing-devices" title="Link to this heading"></a></h2>
|
||
<blockquote>
|
||
<div><ul class="simple">
|
||
<li><p>Coprocessor support</p></li>
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||
<li><p>PWM and Fan Controller</p></li>
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||
<li><p>Slave GPIO Controller</p></li>
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<li><p>Super I/O Controller</p></li>
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<li><p>PCI-Express 1 Controller</p></li>
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<li><p>Graphic Display Controller</p></li>
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<li><p>MCTP Controller</p></li>
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<li><p>Mailbox Controller</p></li>
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<li><p>Virtual UART</p></li>
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<li><p>eSPI Controller</p></li>
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</ul>
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</div></blockquote>
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</section>
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<section id="boot-options">
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<h2>Boot options<a class="headerlink" href="#boot-options" title="Link to this heading"></a></h2>
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<p>The Aspeed machines can be started using the <code class="docutils literal notranslate"><span class="pre">-kernel</span></code> and <code class="docutils literal notranslate"><span class="pre">-dtb</span></code> options
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to load a Linux kernel or from a firmware. Images can be downloaded from the
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OpenBMC jenkins :</p>
|
||
<blockquote>
|
||
<div><p><a class="reference external" href="https://jenkins.openbmc.org/job/ci-openbmc/lastSuccessfulBuild/">https://jenkins.openbmc.org/job/ci-openbmc/lastSuccessfulBuild/</a></p>
|
||
</div></blockquote>
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||
<p>or directly from the OpenBMC GitHub release repository :</p>
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||
<blockquote>
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||
<div><p><a class="reference external" href="https://github.com/openbmc/openbmc/releases">https://github.com/openbmc/openbmc/releases</a></p>
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||
</div></blockquote>
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||
<p>To boot a kernel directly from a Linux build tree:</p>
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||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>qemu-system-arm<span class="w"> </span>-M<span class="w"> </span>ast2600-evb<span class="w"> </span>-nographic<span class="w"> </span><span class="se">\</span>
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||
<span class="w"> </span>-kernel<span class="w"> </span>arch/arm/boot/zImage<span class="w"> </span><span class="se">\</span>
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||
<span class="w"> </span>-dtb<span class="w"> </span>arch/arm/boot/dts/aspeed-ast2600-evb.dtb<span class="w"> </span><span class="se">\</span>
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<span class="w"> </span>-initrd<span class="w"> </span>rootfs.cpio
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</pre></div>
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</div>
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<p>To boot the machine from the flash image, use an MTD drive :</p>
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<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>qemu-system-arm<span class="w"> </span>-M<span class="w"> </span>romulus-bmc<span class="w"> </span>-nic<span class="w"> </span>user<span class="w"> </span><span class="se">\</span>
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<span class="w"> </span>-drive<span class="w"> </span><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<span class="w"> </span>-nographic
|
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</pre></div>
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</div>
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<p>Options specific to Aspeed machines are :</p>
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||
<blockquote>
|
||
<div><ul class="simple">
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||
<li><p><code class="docutils literal notranslate"><span class="pre">execute-in-place</span></code> which emulates the boot from the CE0 flash
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||
device by using the FMC controller to load the instructions, and
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||
not simply from RAM. This takes a little longer.</p></li>
|
||
<li><p><code class="docutils literal notranslate"><span class="pre">fmc-model</span></code> to change the default FMC Flash model. FW needs
|
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support for the chip model to boot.</p></li>
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||
<li><p><code class="docutils literal notranslate"><span class="pre">spi-model</span></code> to change the default SPI Flash model.</p></li>
|
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<li><p><code class="docutils literal notranslate"><span class="pre">bmc-console</span></code> to change the default console device. Most of the
|
||
machines use the <code class="docutils literal notranslate"><span class="pre">UART5</span></code> device for a boot console, which is
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||
mapped on <code class="docutils literal notranslate"><span class="pre">/dev/ttyS4</span></code> under Linux, but it is not always the
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||
case.</p></li>
|
||
</ul>
|
||
</div></blockquote>
|
||
<p>To use other flash models, for instance a different FMC chip and a
|
||
bigger (64M) SPI for the <code class="docutils literal notranslate"><span class="pre">ast2500-evb</span></code> machine, run :</p>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>-M<span class="w"> </span>ast2500-evb,fmc-model<span class="o">=</span>mx25l25635e,spi-model<span class="o">=</span>mx66u51235f
|
||
</pre></div>
|
||
</div>
|
||
<p>When more flexibility is needed to define the flash devices, to use
|
||
different flash models or define all flash devices (up to 8), the
|
||
<code class="docutils literal notranslate"><span class="pre">-nodefaults</span></code> QEMU option can be used to avoid creating the default
|
||
flash devices.</p>
|
||
<p>Flash devices should then be created from the command line and attached
|
||
to a block device :</p>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>qemu-system-arm<span class="w"> </span>-M<span class="w"> </span>ast2600-evb<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-blockdev<span class="w"> </span>node-name<span class="o">=</span>fmc0,driver<span class="o">=</span>file,filename<span class="o">=</span>/path/to/fmc0.img<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-device<span class="w"> </span>mx66u51235f,bus<span class="o">=</span>ssi.0,cs<span class="o">=</span>0x0,drive<span class="o">=</span>fmc0<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-blockdev<span class="w"> </span>node-name<span class="o">=</span>fmc1,driver<span class="o">=</span>file,filename<span class="o">=</span>/path/to/fmc1.img<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-device<span class="w"> </span>mx66u51235f,bus<span class="o">=</span>ssi.0,cs<span class="o">=</span>0x1,drive<span class="o">=</span>fmc1<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-blockdev<span class="w"> </span>node-name<span class="o">=</span>spi1,driver<span class="o">=</span>file,filename<span class="o">=</span>/path/to/spi1.img<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-device<span class="w"> </span>mx66u51235f,cs<span class="o">=</span>0x0,bus<span class="o">=</span>ssi.1,drive<span class="o">=</span>spi1<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-nographic<span class="w"> </span>-nodefaults
|
||
</pre></div>
|
||
</div>
|
||
<p>In that case, the machine boots fetching instructions from the FMC0
|
||
device. It is slower to start but closer to what HW does. Using the
|
||
machine option <code class="docutils literal notranslate"><span class="pre">execute-in-place</span></code> has a similar effect.</p>
|
||
<p>To change the boot console and use device <code class="docutils literal notranslate"><span class="pre">UART3</span></code> (<code class="docutils literal notranslate"><span class="pre">/dev/ttyS2</span></code>
|
||
under Linux), use :</p>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>-M<span class="w"> </span>ast2500-evb,bmc-console<span class="o">=</span>uart3
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
</section>
|
||
<section id="aspeed-minibmc-family-boards-ast1030-evb">
|
||
<h1>Aspeed minibmc family boards (<code class="docutils literal notranslate"><span class="pre">ast1030-evb</span></code>)<a class="headerlink" href="#aspeed-minibmc-family-boards-ast1030-evb" title="Link to this heading"></a></h1>
|
||
<p>The QEMU Aspeed machines model mini BMCs of various Aspeed evaluation
|
||
boards. They are based on different releases of the
|
||
Aspeed SoC : the AST1030 integrating an ARM Cortex M4F CPU (200MHz).</p>
|
||
<p>The SoC comes with SRAM, SPI, I2C, etc.</p>
|
||
<p>AST1030 SoC based machines :</p>
|
||
<ul class="simple">
|
||
<li><p><code class="docutils literal notranslate"><span class="pre">ast1030-evb</span></code> Aspeed AST1030 Evaluation board (Cortex-M4F)</p></li>
|
||
</ul>
|
||
<section id="id1">
|
||
<h2>Supported devices<a class="headerlink" href="#id1" title="Link to this heading"></a></h2>
|
||
<blockquote>
|
||
<div><ul class="simple">
|
||
<li><p>SMP (for the AST1030 Cortex-M4F)</p></li>
|
||
<li><p>Interrupt Controller (VIC)</p></li>
|
||
<li><p>Timer Controller</p></li>
|
||
<li><p>I2C Controller</p></li>
|
||
<li><p>System Control Unit (SCU)</p></li>
|
||
<li><p>SRAM mapping</p></li>
|
||
<li><p>Static Memory Controller (SMC or FMC) - Only SPI Flash support</p></li>
|
||
<li><p>SPI Memory Controller</p></li>
|
||
<li><p>USB 2.0 Controller</p></li>
|
||
<li><p>Watchdog Controller</p></li>
|
||
<li><p>GPIO Controller (Master only)</p></li>
|
||
<li><p>UART</p></li>
|
||
<li><p>LPC Peripheral Controller (a subset of subdevices are supported)</p></li>
|
||
<li><p>Hash/Crypto Engine (HACE) - Hash support only. TODO: HMAC and RSA</p></li>
|
||
<li><p>ADC</p></li>
|
||
<li><p>Secure Boot Controller</p></li>
|
||
<li><p>PECI Controller (minimal)</p></li>
|
||
</ul>
|
||
</div></blockquote>
|
||
</section>
|
||
<section id="id2">
|
||
<h2>Missing devices<a class="headerlink" href="#id2" title="Link to this heading"></a></h2>
|
||
<blockquote>
|
||
<div><ul class="simple">
|
||
<li><p>PWM and Fan Controller</p></li>
|
||
<li><p>Slave GPIO Controller</p></li>
|
||
<li><p>Mailbox Controller</p></li>
|
||
<li><p>Virtual UART</p></li>
|
||
<li><p>eSPI Controller</p></li>
|
||
<li><p>I3C Controller</p></li>
|
||
</ul>
|
||
</div></blockquote>
|
||
</section>
|
||
<section id="id3">
|
||
<h2>Boot options<a class="headerlink" href="#id3" title="Link to this heading"></a></h2>
|
||
<p>The Aspeed machines can be started using the <code class="docutils literal notranslate"><span class="pre">-kernel</span></code> to load a
|
||
Zephyr OS or from a firmware. Images can be downloaded from the
|
||
ASPEED GitHub release repository :</p>
|
||
<blockquote>
|
||
<div><p><a class="reference external" href="https://github.com/AspeedTech-BMC/zephyr/releases">https://github.com/AspeedTech-BMC/zephyr/releases</a></p>
|
||
</div></blockquote>
|
||
<p>To boot a kernel directly from a Zephyr build tree:</p>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>qemu-system-arm<span class="w"> </span>-M<span class="w"> </span>ast1030-evb<span class="w"> </span>-nographic<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-kernel<span class="w"> </span>zephyr.elf
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
</section>
|
||
<section id="facebook-yosemite-v3-5-platform-and-craterlake-server-fby35">
|
||
<h1>Facebook Yosemite v3.5 Platform and CraterLake Server (<code class="docutils literal notranslate"><span class="pre">fby35</span></code>)<a class="headerlink" href="#facebook-yosemite-v3-5-platform-and-craterlake-server-fby35" title="Link to this heading"></a></h1>
|
||
<p>Facebook has a series of multi-node compute server designs named
|
||
Yosemite. The most recent version released was
|
||
<a class="reference external" href="https://www.opencompute.org/documents/ocp-yosemite-v3-platform-design-specification-1v16-pdf">Yosemite v3</a>.</p>
|
||
<p>Yosemite v3.5 is an iteration on this design, and is very similar: there’s a
|
||
baseboard with a BMC, and 4 server slots. The new server board design termed
|
||
“CraterLake” includes a Bridge IC (BIC), with room for expansion boards to
|
||
include various compute accelerators (video, inferencing, etc). At the moment,
|
||
only the first server slot’s BIC is included.</p>
|
||
<p>Yosemite v3.5 is itself a sled which fits into a 40U chassis, and 3 sleds
|
||
can be fit into a chassis. See <a class="reference external" href="https://www.opencompute.org/products/423/wiwynn-yosemite-v3-server">here</a>
|
||
for an example.</p>
|
||
<p>In this generation, the BMC is an AST2600 and each BIC is an AST1030. The BMC
|
||
runs <a class="reference external" href="https://github.com/facebook/openbmc">OpenBMC</a>, and the BIC runs
|
||
<a class="reference external" href="https://github.com/facebook/openbic">OpenBIC</a>.</p>
|
||
<p>Firmware images can be retrieved from the Github releases or built from the
|
||
source code, see the README’s for instructions on that. This image uses the
|
||
“fby35” machine recipe from OpenBMC, and the “yv35-cl” target from OpenBIC.
|
||
Some reference images can also be found here:</p>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>wget<span class="w"> </span>https://github.com/facebook/openbmc/releases/download/openbmc-e2294ff5d31d/fby35.mtd
|
||
$<span class="w"> </span>wget<span class="w"> </span>https://github.com/peterdelevoryas/OpenBIC/releases/download/oby35-cl-2022.13.01/Y35BCL.elf
|
||
</pre></div>
|
||
</div>
|
||
<p>Since this machine has multiple SoC’s, each with their own serial console, the
|
||
recommended way to run it is to allocate a pseudoterminal for each serial
|
||
console and let the monitor use stdio. Also, starting in a paused state is
|
||
useful because it allows you to attach to the pseudoterminals before the boot
|
||
process starts.</p>
|
||
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>qemu-system-arm<span class="w"> </span>-machine<span class="w"> </span>fby35<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-drive<span class="w"> </span><span class="nv">file</span><span class="o">=</span>fby35.mtd,format<span class="o">=</span>raw,if<span class="o">=</span>mtd<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-device<span class="w"> </span>loader,file<span class="o">=</span>Y35BCL.elf,addr<span class="o">=</span><span class="m">0</span>,cpu-num<span class="o">=</span><span class="m">2</span><span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-serial<span class="w"> </span>pty<span class="w"> </span>-serial<span class="w"> </span>pty<span class="w"> </span>-serial<span class="w"> </span>mon:stdio<span class="w"> </span><span class="se">\</span>
|
||
<span class="w"> </span>-display<span class="w"> </span>none<span class="w"> </span>-S
|
||
$<span class="w"> </span>screen<span class="w"> </span>/dev/tty0<span class="w"> </span><span class="c1"># In a separate TMUX pane, terminal window, etc.</span>
|
||
$<span class="w"> </span>screen<span class="w"> </span>/dev/tty1
|
||
$<span class="w"> </span><span class="o">(</span>qemu<span class="o">)</span><span class="w"> </span>c<span class="w"> </span><span class="c1"># Start the boot process once screen is setup.</span>
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
|
||
|
||
</div>
|
||
</div>
|
||
<footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
|
||
<a href="vexpress.html" class="btn btn-neutral float-left" title="Arm Versatile Express boards (vexpress-a9, vexpress-a15)" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
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|
||
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|
||
|
||
<hr/>
|
||
|
||
<div role="contentinfo">
|
||
<p>© Copyright 2025, The QEMU Project Developers.</p>
|
||
</div>
|
||
|
||
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|
||
|
||
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|
||
<p></p>
|
||
|
||
<p>This documentation is for QEMU version 8.2.2.</p>
|
||
|
||
|
||
<p><a href="../../about/license.html">QEMU and this manual are released under the
|
||
GNU General Public License, version 2.</a></p>
|
||
|
||
|
||
|
||
|
||
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|
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||
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