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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1">
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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" title="Edit this document" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/boot/uboot-module.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">U-Boot</h1>
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<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div>
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<div class="- topic/body concept/conbody body conbody"><p class="- topic/shortdesc shortdesc">启动支持的基本功能以及运行时的基本硬件环境。</p>
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<p class="- topic/p p" data-ofbid="d170580e36__20250123155218">ArtInChip U-Boot 是基于官方版本 v2021.10 正式版进行移植后开发的专用启动引导程序， 开发过程中只增加新功能支持，对原有功能并没有进行改动。</p>
|
||
<div class="- topic/p p" data-ofbid="d170580e39__20250123155218">系统冷启动过程中经历的不同阶段有：<ul class="- topic/ul ul" id="uBoot__ul_jgt_yll_tzb" data-ofbid="uBoot__ul_jgt_yll_tzb">
|
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<li class="- topic/li li" data-ofbid="d170580e43__20250123155218">BROM (Boot ROM)</li>
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||
<li class="- topic/li li" data-ofbid="d170580e46__20250123155218">Secondary Program Loader (SPL)</li>
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<li class="- topic/li li" data-ofbid="d170580e49__20250123155218">OpenSBI</li>
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<li class="- topic/li li" data-ofbid="d170580e52__20250123155218">U-Boot</li>
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<li class="- topic/li li" data-ofbid="d170580e55__20250123155218">Kernel</li>
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</ul></div>
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<p class="- topic/p p" data-ofbid="d170580e59__20250123155218"> 下表列出了 U-Boot 支持的主要功能：</p>
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<div class="table-container"><table class="- topic/table table frame-all" id="uBoot__id2" data-ofbid="uBoot__id2" data-cols="2"><caption class="- topic/title title tablecap" data-caption-side="top" data-is-repeated="true"><span class="table--title-label">表<span class="table--title-label-number"> 1</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">U-Boot 功能列表</span></caption><colgroup><col style="width:30.3951367781155%"/><col style="width:69.6048632218845%"/></colgroup><thead class="- topic/thead thead">
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<tr class="- topic/row">
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<th class="- topic/entry entry colsep-0 rowsep-0" id="uBoot__id2__entry__1">功能</th>
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<th class="- topic/entry entry colsep-0 rowsep-0" id="uBoot__id2__entry__2">描述</th>
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</tr>
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</thead><tbody class="- topic/tbody tbody">
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">SPL</td>
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||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">在 U-Boot SPL 运行之前，BROM 已经对系统进行了基本的初始化。</td>
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</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">SPL Falcon 模式</td>
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||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">SPL 直接加载 Kernel</td>
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</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">启动介质</td>
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">SPI NOR/ SPI NAND/ SD Card/ eMMC</td>
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</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">USB 量产升级</td>
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||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">-</td>
|
||
</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">SD Card 量产升级</td>
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||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">-</td>
|
||
</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">U 盘升级</td>
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||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">-</td>
|
||
</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">文件系统</td>
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||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">FAT32、EXT2、EXT4 和 UBIFS 文件系统</td>
|
||
</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">GPT 分区格式</td>
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">SD/ eMMC</td>
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||
</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">支持开机 Logo 显示</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">-</td>
|
||
</tr>
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<tr class="- topic/row">
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||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">显示设备</td>
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||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">RGB、LVDS、MIPI</td>
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</tr>
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<tr class="- topic/row">
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<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__1">安全启动</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="uBoot__id2__entry__2">-</td>
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</tr>
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</tbody></table></div>
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