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<!DOCTYPE html> <!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> <!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Shakti C Reference Platform (shakti_c) — QEMU qemu-kvm-6.2.0-53.module+el8.10.0+2055+8eb7870b.4 documentation</title> <link rel="shortcut icon" href="../../_static/qemu_32x32.png"/> <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" /> <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" /> <link rel="index" title="Index" href="../../genindex.html" /> <link rel="search" title="Search" href="../../search.html" /> <link rel="next" title="SiFive HiFive Unleashed (sifive_u)" href="sifive_u.html" /> <link rel="prev" title="Microchip PolarFire SoC Icicle Kit (microchip-icicle-kit)" href="microchip-icicle-kit.html" /> <script src="../../_static/js/modernizr.min.js"></script> </head> <body 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href="https://gitlab.com/qemu-project/qemu/blob/master/docs/system/riscv/shakti-c.rst" class="fa fa-gitlab"> Edit on GitLab</a> </li> </ul> <hr/> </div> <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article"> <div itemprop="articleBody"> <div class="section" id="shakti-c-reference-platform-shakti-c"> <h1>Shakti C Reference Platform (<code class="docutils literal notranslate"><span class="pre">shakti_c</span></code>)<a class="headerlink" href="#shakti-c-reference-platform-shakti-c" title="Permalink to this headline">¶</a></h1> <p>Shakti C Reference Platform is a reference platform based on arty a7 100t for the Shakti SoC.</p> <p>Shakti SoC is a SoC based on the Shakti C-class processor core. Shakti C is a 64bit RV64GCSUN processor core.</p> <p>For more details on Shakti SoC, please see: <a class="reference external" href="https://gitlab.com/shaktiproject/cores/shakti-soc/-/blob/master/fpga/boards/artya7-100t/c-class/README.rst">https://gitlab.com/shaktiproject/cores/shakti-soc/-/blob/master/fpga/boards/artya7-100t/c-class/README.rst</a></p> <p>For more info on the Shakti C-class core, please see: <a class="reference external" href="https://c-class.readthedocs.io/en/latest/">https://c-class.readthedocs.io/en/latest/</a></p> <div class="section" id="supported-devices"> <h2>Supported devices<a class="headerlink" href="#supported-devices" title="Permalink to this headline">¶</a></h2> <p>The <code class="docutils literal notranslate"><span class="pre">shakti_c</span></code> machine supports the following devices:</p> <blockquote> <div><ul class="simple"> <li>1 C-class core</li> <li>Core Level Interruptor (CLINT)</li> <li>Platform-Level Interrupt Controller (PLIC)</li> <li>1 UART</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 <code class="docutils literal notranslate"><span class="pre">shakti_c</span></code> machine can start using the standard -bios functionality for loading the baremetal application or opensbi.</p> </div> <div class="section" id="boot-the-machine"> <h2>Boot the machine<a class="headerlink" href="#boot-the-machine" title="Permalink to this headline">¶</a></h2> <div class="section" id="shakti-sdk"> <h3>Shakti SDK<a class="headerlink" href="#shakti-sdk" title="Permalink to this headline">¶</a></h3> <p>Shakti SDK can be used to generate the baremetal example UART applications.</p> <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ git clone https://gitlab.com/behindbytes/shakti-sdk.git $ <span class="nb">cd</span> shakti-sdk $ make software <span class="nv">PROGRAM</span><span class="o">=</span>loopback <span class="nv">TARGET</span><span class="o">=</span>artix7_100t </pre></div> </div> <dl class="docutils"> <dt>Binary would be generated in:</dt> <dd>software/examples/uart_applns/loopback/output/loopback.shakti</dd> </dl> <p>You could also download the precompiled example applications using below commands.</p> <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ wget -c https://gitlab.com/behindbytes/shakti-binaries/-/raw/master/sdk/shakti_sdk_qemu.zip $ unzip shakti_sdk_qemu.zip </pre></div> </div> <p>Then we can run the UART example using:</p> <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ qemu-system-riscv64 -M shakti_c -nographic <span class="se">\</span> -bios path/to/shakti_sdk_qemu/loopback.shakti </pre></div> </div> </div> <div class="section" id="opensbi"> <h3>OpenSBI<a class="headerlink" href="#opensbi" title="Permalink to this headline">¶</a></h3> <p>We can also run OpenSBI with Test Payload.</p> <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ git clone https://github.com/riscv/opensbi.git -b v0.9 $ <span class="nb">cd</span> opensbi $ wget -c https://gitlab.com/behindbytes/shakti-binaries/-/raw/master/dts/shakti.dtb $ <span class="nb">export</span> <span class="nv">CROSS_COMPILE</span><span class="o">=</span>riscv64-unknown-elf- $ <span class="nb">export</span> <span class="nv">FW_FDT_PATH</span><span class="o">=</span>./shakti.dtb $ make <span class="nv">PLATFORM</span><span class="o">=</span>generic </pre></div> </div> <p>fw_payload.elf would be generated in build/platform/generic/firmware/fw_payload.elf. Boot it using the below qemu command.</p> <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ qemu-system-riscv64 -M shakti_c -nographic <span class="se">\</span> -bios path/to/fw_payload.elf </pre></div> </div> </div> </div> </div> </div> </div> <footer> <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation"> <a href="sifive_u.html" class="btn btn-neutral float-right" title="SiFive HiFive Unleashed (sifive_u)" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a> <a href="microchip-icicle-kit.html" class="btn btn-neutral" title="Microchip PolarFire SoC Icicle Kit (microchip-icicle-kit)" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a> </div> <hr/> <div role="contentinfo"> <p> © Copyright 2021, The QEMU Project Developers. </p> </div> Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. <!-- Empty para to force a blank line after "Built with Sphinx ..." --> <p></p> <p>This documentation is for QEMU version 6.2.0.</p> <p><a href="../../about/license.html">QEMU and this manual are released under the GNU General Public License, version 2.</a></p> </footer> </div> </div> </section> </div> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT:'../../', VERSION:'qemu-kvm-6.2.0-53.module+el8.10.0+2055+8eb7870b.4', LANGUAGE:'None', COLLAPSE_INDEX:false, FILE_SUFFIX:'.html', HAS_SOURCE: false, SOURCELINK_SUFFIX: '.txt' }; </script> <script type="text/javascript" src="../../_static/jquery.js"></script> <script type="text/javascript" src="../../_static/underscore.js"></script> <script type="text/javascript" src="../../_static/doctools.js"></script> <script type="text/javascript" src="../../_static/js/theme.js"></script> <script type="text/javascript"> jQuery(function () { SphinxRtdTheme.Navigation.enable(true); }); </script> </body> </html>