mirror of
https://gitee.com/Vancouver2017/luban-lite-t3e-pro.git
synced 2025-12-14 18:38:55 +00:00
219 lines
14 KiB
HTML
219 lines
14 KiB
HTML
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-cn" lang="zh-cn" data-whc_version="26.0">
|
||
<head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><meta name="description" content="修改 DTS 要在实际项目中使用 SPI NOR 设备，还需要修改 DTS 配置，详细流程如下所示： 在 board.dts 中具体的 SPI 控制器下添加 jedec,spi-nor 设备。 &spi0 { pinctrl-names = "default" ; pinctrl- 0 = <&spi0_pins_a>; status = "okay" ; spi-max-frequency = ..."/><meta name="DC.rights.owner" content="(C) 版权 2025"/><meta name="copyright" content="(C) 版权 2025"/><meta name="generator" content="DITA-OT"/><meta name="DC.type" content="concept"/><meta name="DC.creator" content="yan.wang"/><meta name="DC.date.created" content="2024-01-17"/><meta name="DC.date.modified" content="2024-11-27"/><meta name="DC.format" content="HTML5"/><meta name="DC.identifier" content="spi_nor_configuration"/><meta name="DC.language" content="zh-CN"/><title>SPI NOR 配置</title><!-- Build number 2023110923. --><meta name="wh-path2root" content="../../../"/><meta name="wh-toc-id" content=""/><meta name="wh-source-relpath" content="topics/sdk/spinor/spinor_config.dita"/><meta name="wh-out-relpath" content="topics/sdk/spinor/spinor_config.html"/>
|
||
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/commons.css?buildId=2023110923"/>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/app/topic.css?buildId=2023110923"/>
|
||
|
||
<script src="../../../webhelp/app/options/properties.js?buildId=20250121171154"></script>
|
||
<script src="../../../webhelp/app/localization/strings.js?buildId=2023110923"></script>
|
||
<script src="../../../webhelp/app/search/index/keywords.js?buildId=20250121171154"></script>
|
||
<script defer="defer" src="../../../webhelp/app/commons.js?buildId=2023110923"></script>
|
||
<script defer="defer" src="../../../webhelp/app/topic.js?buildId=2023110923"></script>
|
||
<link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-styles-web.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/notes.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-common.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-images.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/footnote.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/aic-web-watermark.css?buildId=2023110923"/><link rel="stylesheet" type="text/css" href="../../../webhelp/template/topic-body-list.css?buildId=2023110923"/></head>
|
||
|
||
<body id="spi_nor_configuration" class="wh_topic_page frmBody">
|
||
<a href="#wh_topic_body" class="sr-only sr-only-focusable">
|
||
跳转到主要内容
|
||
</a>
|
||
|
||
|
||
|
||
|
||
<header class="navbar navbar-default wh_header">
|
||
<div class="container-fluid">
|
||
<div class="wh_header_flex_container navbar-nav navbar-expand-md navbar-dark">
|
||
<div class="wh_logo_and_publication_title_container">
|
||
<div class="wh_logo_and_publication_title">
|
||
|
||
<a href="http://www.artinchip.com" class=" wh_logo d-none d-sm-block "><img src="../../../company-logo-white.png" alt="RTOS SDK 使用指南SDK 指南文件"/></a>
|
||
<div class=" wh_publication_title "><a href="../../../index.html"><span class="booktitle"><span class="ph mainbooktitle">RTOS SDK 使用指南</span><span class="ph booktitlealt">SDK 指南文件</span></span></a></div>
|
||
|
||
</div>
|
||
|
||
|
||
</div>
|
||
|
||
<div class="wh_top_menu_and_indexterms_link collapse navbar-collapse" id="wh_top_menu_and_indexterms_link">
|
||
|
||
|
||
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</header>
|
||
|
||
|
||
|
||
|
||
<div class=" wh_search_input navbar-form wh_topic_page_search search " role="form">
|
||
|
||
|
||
|
||
<form id="searchForm" method="get" role="search" action="../../../search.html"><div><input type="search" placeholder="搜索 " class="wh_search_textfield" id="textToSearch" name="searchQuery" aria-label="搜索查询" required="required"/><button type="submit" class="wh_search_button" aria-label="搜索"><span class="search_input_text">搜索</span></button></div></form>
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<div class="container-fluid" id="wh_topic_container">
|
||
<div class="row">
|
||
|
||
<nav class="wh_tools d-print-none navbar-expand-md" aria-label="Tools">
|
||
|
||
<div data-tooltip-position="bottom" class=" wh_breadcrumb "></div>
|
||
|
||
|
||
|
||
<div class="wh_right_tools">
|
||
<button class="wh_hide_highlight" aria-label="切换搜索突出显示" title="切换搜索突出显示"></button>
|
||
<button class="webhelp_expand_collapse_sections" data-next-state="collapsed" aria-label="折叠截面" title="折叠截面"></button>
|
||
|
||
|
||
|
||
|
||
<div class=" wh_print_link print d-none d-md-inline-block "><button onClick="window.print()" title="打印此页" aria-label="打印此页"></button></div>
|
||
|
||
|
||
</div>
|
||
|
||
</nav>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<div class="wh_content_area">
|
||
<div class="row">
|
||
|
||
|
||
<div class="col-lg-10 col-md-10 col-sm-10 col-xs-12" id="wh_topic_body">
|
||
|
||
<button id="wh_close_topic_toc_button" class="close-toc-button d-none" aria-label="Toggle topic table of content" aria-controls="wh_topic_toc" aria-expanded="true">
|
||
<span class="close-toc-icon-container">
|
||
<span class="close-toc-icon"></span>
|
||
</span>
|
||
</button>
|
||
|
||
<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/spinor/spinor_config.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">SPI NOR 配置</h1><div class="date inPage">27 Nov 2024</div><div style="color: gray;">
|
||
Read time: 1 minute(s)
|
||
</div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="spi_nor_configuration__section_s5t_g5y_c1c" data-ofbid="spi_nor_configuration__section_s5t_g5y_c1c"><h2 class="- topic/title title sectiontitle">修改 DTS</h2>
|
||
|
||
<div class="- topic/p p" data-ofbid="d177583e28__20250121171623">要在实际项目中使用 SPI NOR 设备，还需要修改 DTS 配置，详细流程如下所示：<ol class="- topic/ol ol" id="spi_nor_configuration__ul_vmr_zgc_ndc" data-ofbid="spi_nor_configuration__ul_vmr_zgc_ndc"><li class="- topic/li li" data-ofbid="d177583e31__20250121171623">
|
||
<div class="- topic/p p" data-ofbid="d177583e33__20250121171623">在 <span class="+ topic/ph sw-d/filepath ph filepath">board.dts</span> 中具体的 SPI 控制器下添加
|
||
<code class="+ topic/ph pr-d/codeph ph codeph">jedec,spi-nor</code>
|
||
设备。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nor_configuration__pre_t5t_g5y_c1c" data-ofbid="spi_nor_configuration__pre_t5t_g5y_c1c">&spi0 {
|
||
pinctrl-names = <span class="hl-string">"default"</span>;
|
||
pinctrl-<span class="hl-number">0</span> = <&spi0_pins_a>;
|
||
status = <span class="hl-string">"okay"</span>;
|
||
spi-max-frequency = <<span class="hl-number">100000000</span>>;
|
||
spi-flash@<span class="hl-number">0</span> {
|
||
#address-cells = <<span class="hl-number">1</span>>;
|
||
#size-cells = <<span class="hl-number">1</span>>;
|
||
compatible = <span class="hl-string">"jedec,spi-nor"</span>; <em class="hl-comment">//固定值，所有基于 dts 的 SPI NOR 均声明此</em>
|
||
spi-max-frequency = <<span class="hl-number">100000000</span>>; <em class="hl-comment">//最大频率，固定值</em>
|
||
spi-tx-bus-width = <<span class="hl-number">4</span>>;
|
||
spi-rx-bus-width = <<span class="hl-number">4</span>>;
|
||
reg = <<span class="hl-number">0</span>>; <em class="hl-comment">//固定值，一般不需修改</em>
|
||
status = <span class="hl-string">"okay"</span>;
|
||
};
|
||
};
|
||
</pre></div>
|
||
</li><li class="- topic/li li" data-ofbid="d177583e44__20250121171623">
|
||
<div class="- topic/p p" data-ofbid="d177583e46__20250121171623">在 <span class="+ topic/ph sw-d/filepath ph filepath">board-u-boot.dtsi</span> 文件中，将
|
||
<code class="+ topic/ph pr-d/codeph ph codeph">jedec,spi-nor</code> 设备标记为
|
||
<code class="+ topic/ph pr-d/codeph ph codeph">u-boot,dm-pre-reloc</code>，确保 SPL
|
||
无法识别和使用。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_nor_configuration__pre_u5t_g5y_c1c" data-ofbid="spi_nor_configuration__pre_u5t_g5y_c1c">&spi0 {
|
||
u-boot,dm-pre-reloc;
|
||
spi-flash@<span class="hl-number">0</span> {
|
||
u-boot,dm-pre-reloc;
|
||
};
|
||
};
|
||
</pre></div>
|
||
</li></ol></div>
|
||
</section><section class="- topic/section section" id="spi_nor_configuration__section_zbw_cqy_c1c" data-ofbid="spi_nor_configuration__section_zbw_cqy_c1c"><h2 class="- topic/title title sectiontitle">配置 Bus Width</h2>
|
||
|
||
<div class="- topic/p p" data-ofbid="d177583e66__20250121171623">根据 SPI NOR 芯片的总线宽度，正确设置 <code class="+ topic/ph pr-d/codeph ph codeph">spi-tx-bus-width</code>：<ul class="- topic/ul ul" id="spi_nor_configuration__ul_j44_3hc_ndc" data-ofbid="spi_nor_configuration__ul_j44_3hc_ndc"><li class="- topic/li li" data-ofbid="d177583e72__20250121171623">
|
||
<p class="- topic/p p" data-ofbid="d177583e74__20250121171623">标准 SPI NOR 配置为 1</p>
|
||
</li><li class="- topic/li li" data-ofbid="d177583e77__20250121171623">
|
||
<p class="- topic/p p" data-ofbid="d177583e79__20250121171623">Dual SPI NOR 配置为 2</p>
|
||
</li><li class="- topic/li li" data-ofbid="d177583e82__20250121171623">
|
||
<p class="- topic/p p" data-ofbid="d177583e84__20250121171623">Quad SPI NOR 配置为 4</p>
|
||
</li></ul></div>
|
||
<div class="- topic/note note note note_note" id="spi_nor_configuration__note_xrf_jhb_ndc" data-ofbid="spi_nor_configuration__note_xrf_jhb_ndc"><span class="note__title">注：</span> 窄总线设备无法在宽总线模式下工作。</div>
|
||
</section></div></article></main></div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
<nav role="navigation" id="wh_topic_toc" aria-label="On this page" class="col-lg-2 d-none d-lg-block navbar d-print-none">
|
||
<div id="wh_topic_toc_content">
|
||
|
||
<div class=" wh_topic_toc "><div class="wh_topic_label">在本页上</div><ul><li class="section-item"><div class="section-title"><a href="#spi_nor_configuration__section_s5t_g5y_c1c" data-tocid="spi_nor_configuration__section_s5t_g5y_c1c">修改 DTS</a></div></li><li class="section-item"><div class="section-title"><a href="#spi_nor_configuration__section_zbw_cqy_c1c" data-tocid="spi_nor_configuration__section_zbw_cqy_c1c">配置 Bus Width</a></div></li></ul></div>
|
||
|
||
</div>
|
||
</nav>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
</div>
|
||
<footer class="navbar navbar-default wh_footer">
|
||
<div class=" footer-container mx-auto ">
|
||
<title>footer def</title>
|
||
<style><!--
|
||
|
||
.p1 {
|
||
font-family: FangZhengShuSong, Times, serif;
|
||
}
|
||
.p2 {
|
||
font-family: Arial, Helvetica, sans-serif;
|
||
}
|
||
.p3 {
|
||
font-family: "Lucida Console", "Courier New", monospace;
|
||
}
|
||
|
||
--></style>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div class="webhelp.fragment.footer">
|
||
<p class="p1">Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.</p>
|
||
</div><div>
|
||
<div class="generation_time">
|
||
Update Time: 2025-01-21
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
|
||
<div id="go2top" class="d-print-none">
|
||
<span class="oxy-icon oxy-icon-up"></span>
|
||
</div>
|
||
|
||
<div id="modal_img_large" class="modal">
|
||
<span class="close oxy-icon oxy-icon-remove"></span>
|
||
<div id="modal_img_container"></div>
|
||
<div id="caption"></div>
|
||
</div>
|
||
|
||
|
||
<script src="${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer="defer"></script>
|
||
|
||
|
||
</body>
|
||
</html> |