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class="shortdesc">GE、VE、Display、DVP、MPP、MPP 播放器等多媒体模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="concept_nww_hzh_pzb-d4445e5947" class="topicref" data-id="concept_nww_hzh_pzb" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action concept_nww_hzh_pzb-d4445e5947-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d4445e5947-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="chapter-safety-d4445e7944" class="topicref" data-id="chapter-safety" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action chapter-safety-d4445e7944-link" class="wh-expand-btn"></span><div class="title"><a 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href="../../../topics/sdk/efuse/efuse_user_guide.html" id="efuse_user_guide-d4445e8115-link">eFuse 使用指南</a></div></div></li><li role="treeitem" aria-expanded="true"><div data-tocid="spi_enc_user_guide-d4445e8185" class="topicref" data-id="spi_enc_user_guide" data-state="expanded"><span role="button" tabindex="0" aria-labelledby="button-collapse-action spi_enc_user_guide-d4445e8185-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spienc/spi-enc-user-guide.html" id="spi_enc_user_guide-d4445e8185-link">SPI ENC</a></div></div><ul role="group" class="navbar-nav nav-list"><li role="treeitem"><div data-tocid="spi_enc_terms-d4445e8199" class="topicref" data-id="spi_enc_terms" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spienc/spi-enc-terms.html" id="spi_enc_terms-d4445e8199-link">术语定义</a></div></div></li><li role="treeitem" class="active"><div data-tocid="spi_enc_configuration-d4445e8213" class="topicref" data-id="spi_enc_configuration" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spienc/spi-enc-configuration.html" id="spi_enc_configuration-d4445e8213-link">SPI ENC 配置</a></div></div></li><li role="treeitem"><div data-tocid="spi_enc_debug_guide-d4445e8227" class="topicref" data-id="spi_enc_debug_guide" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spienc/spi-enc-debug_guide.html" id="spi_enc_debug_guide-d4445e8227-link">调试指南</a></div></div></li><li role="treeitem"><div data-tocid="spi_enc_test_guide-d4445e8241" class="topicref" data-id="spi_enc_test_guide" data-state="leaf"><span role="button" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/sdk/spienc/spi-enc-test_guide.html" id="spi_enc_test_guide-d4445e8241-link">测试指南</a></div></div></li><li role="treeitem" aria-expanded="false"><div 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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/spienc/spi-enc-configuration.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">SPI ENC 配置</h1>
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<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 3 minute(s)
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<div class="- topic/body concept/conbody body conbody">
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<section class="- topic/section section" id="spi_enc_configuration__section_iyv_drx_21c" data-ofbid="spi_enc_configuration__section_iyv_drx_21c"><h2 class="- topic/title title sectiontitle">内核配置</h2>
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<div class="- topic/p p" data-ofbid="d39061e38__20250123155159">使能 SPI_ENC 相关的内核驱动：<ol class="- topic/ol ol" id="spi_enc_configuration__ol_qhd_ywl_sdc" data-ofbid="spi_enc_configuration__ol_qhd_ywl_sdc">
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<li class="- topic/li li" data-ofbid="d39061e42__20250123155159">
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<div class="- topic/div div">
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<div class="- topic/p p" data-ofbid="d39061e46__20250123155159">在 SDK 根目录下，执行下列命令，进入 kernel
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的功能配置界面：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_enc_configuration__codeblock_wg1_3ml_sdc" data-ofbid="spi_enc_configuration__codeblock_wg1_3ml_sdc"><code>make kernel-menuconfig</code></pre></div>
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<p class="- topic/p p" data-ofbid="d39061e51__20250123155159">或使用简写命令</p>
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<div class="- topic/p p" data-ofbid="d39061e54__20250123155159">
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_enc_configuration__codeblock_uss_hml_sdc" data-ofbid="spi_enc_configuration__codeblock_uss_hml_sdc"><code>make km</code></pre>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d39061e62__20250123155159">
|
||
<div class="- topic/p p" data-ofbid="d39061e64__20250123155159">在内核的配置界面中，进行下列的选择：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_enc_configuration__pre_kyv_drx_21c" data-ofbid="spi_enc_configuration__pre_kyv_drx_21c"><code>Cryptographic API --->
|
||
[*] Hardware crypto devices --->
|
||
[*] Support <strong class="hl-keyword">for</strong> artinchip cryptographic accelerator
|
||
<*> Artinchip<span class="hl-string">'s SPI Bus on-the-fly encryption driver
|
||
</span></code></pre></div>
|
||
</li>
|
||
</ol></div>
|
||
<p class="- topic/p p" data-ofbid="d39061e71__20250123155159">结果：内核 SPI_ENC 驱动使能，SPI NOR / SPI NAND 驱动在数据访问时， 自动进行数据加解密。</p>
|
||
</section>
|
||
<section class="- topic/section section" id="spi_enc_configuration__section_lyv_drx_21c" data-ofbid="spi_enc_configuration__section_lyv_drx_21c"><h2 class="- topic/title title sectiontitle">DTS 配置</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d39061e80__20250123155159">芯片级的 DTS:</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_enc_configuration__pre_myv_drx_21c" data-ofbid="spi_enc_configuration__pre_myv_drx_21c"><code>spienc: spienc@<span class="hl-number">18100000</span> {
|
||
compatible = <span class="hl-string">"artinchip,aic-spienc-v1.0"</span>;
|
||
reg = <<span class="hl-number">0x18100000</span> <span class="hl-number">0x1000</span>>;
|
||
interrupts-extended = <&plic0 <span class="hl-number">41</span> IRQ_TYPE_LEVEL_HIGH>;
|
||
clocks = <&cmu CLK_SPIENC>;
|
||
resets = <&rst RESET_SPIENC>;
|
||
aic,spienc-tweak = <<span class="hl-number">0</span>>;
|
||
};
|
||
</code></pre>
|
||
<p class="- topic/p p" data-ofbid="d39061e86__20250123155159">其中板级的配置 <span class="+ topic/ph sw-d/filepath ph filepath">board.dts</span> 中需要使能该模块:</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_enc_configuration__pre_nyv_drx_21c" data-ofbid="spi_enc_configuration__pre_nyv_drx_21c"><code>&spienc {
|
||
aic,spienc-tweak = <<span class="hl-number">0</span>>;
|
||
u-boot,dm-pre-reloc;
|
||
status = <span class="hl-string">"okay"</span>;
|
||
};</code></pre>
|
||
<p class="- topic/p p" data-ofbid="d39061e96__20250123155159">DTS 中的 <code class="+ topic/ph pr-d/codeph ph codeph">aic,spienc-tweak</code> 可以影响 COUNTER 的生成，进而改变加密的结果。
|
||
如果需要让在不同的产品对相同的数据有不同的加密结果，则可以在 DTS 中调整该值。</p>
|
||
<p class="- topic/p p" data-ofbid="d39061e102__20250123155159">并且需要配置具体的 SPI NAND / SPI NOR 设备是否使能加密:</p>
|
||
<ul class="- topic/ul ul" id="spi_enc_configuration__ul_qyv_drx_21c" data-ofbid="spi_enc_configuration__ul_qyv_drx_21c">
|
||
<li class="- topic/li li" data-ofbid="d39061e107__20250123155159">
|
||
<p class="- topic/p p" data-ofbid="d39061e109__20250123155159"><code class="+ topic/ph pr-d/codeph ph codeph">aic,encrypt</code></p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d39061e114__20250123155159">
|
||
<p class="- topic/p p" data-ofbid="d39061e116__20250123155159"><code class="+ topic/ph pr-d/codeph ph codeph">aic,spi-id</code></p>
|
||
</li>
|
||
</ul>
|
||
<p class="- topic/p p" data-ofbid="d39061e122__20250123155159">例如： <span class="+ topic/ph sw-d/filepath ph filepath">board.dts</span></p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="spi_enc_configuration__pre_ryv_drx_21c" data-ofbid="spi_enc_configuration__pre_ryv_drx_21c"><code>&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-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">"spi-nand"</span>;
|
||
spi-max-frequency = <<span class="hl-number">24000000</span>>;
|
||
spi-tx-bus-width = <<span class="hl-number">1</span>>;
|
||
spi-rx-bus-width = <<span class="hl-number">1</span>>;
|
||
reg = <<span class="hl-number">0</span>>;
|
||
aic,encrypt; <em class="hl-comment">// 标记该存储设备使能 SPI_ENC</em>
|
||
aic,spi-id = <<span class="hl-number">0</span>>; <em class="hl-comment">// 设置当前存储设备所挂载的 SPI 控制器 ID</em>
|
||
status = <span class="hl-string">"okay"</span>;
|
||
};
|
||
};
|
||
|
||
&spi1 {
|
||
pinctrl-names = <span class="hl-string">"default"</span>;
|
||
pinctrl-<span class="hl-number">0</span> = <&spi1_pins_a>;
|
||
status = <span class="hl-string">"okay"</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>;
|
||
spi-max-frequency = <<span class="hl-number">24000000</span>>;
|
||
spi-tx-bus-width = <<span class="hl-number">1</span>>;
|
||
spi-rx-bus-width = <<span class="hl-number">1</span>>;
|
||
reg = <<span class="hl-number">0</span>>;
|
||
aic,encrypt; <em class="hl-comment">// 标记该存储设备使能 SPI_ENC</em>
|
||
aic,spi-id = <<span class="hl-number">1</span>>; <em class="hl-comment">// 设置当前存储设备所挂载的 SPI 控制器 ID</em>
|
||
status = <span class="hl-string">"okay"</span>;
|
||
};
|
||
};</code></pre>
|
||
</section>
|
||
|
||
<section class="- topic/section section" id="spi_enc_configuration__section_syv_drx_21c" data-ofbid="spi_enc_configuration__section_syv_drx_21c"><h2 class="- topic/title title sectiontitle">密钥配置</h2>
|
||
|
||
<p class="- topic/p p" data-ofbid="d39061e136__20250123155159">SPI_ENC 模块使用 AES-128-CTR 算法对 SPI 总线数据进行加解密，该算法在计算时的密钥有两部分</p>
|
||
<ul class="- topic/ul ul" id="spi_enc_configuration__ul_uyv_drx_21c" data-ofbid="spi_enc_configuration__ul_uyv_drx_21c">
|
||
<li class="- topic/li li" data-ofbid="d39061e141__20250123155159">
|
||
<p class="- topic/p p" data-ofbid="d39061e143__20250123155159">128 bit AES 密钥(KEY)</p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d39061e147__20250123155159">
|
||
<p class="- topic/p p" data-ofbid="d39061e149__20250123155159">128 bit 数据块的 COUNTER 值</p>
|
||
</li>
|
||
</ul>
|
||
<p class="- topic/p p" data-ofbid="d39061e154__20250123155159">其中 KEY 直接使用 eFuse 中的 <code class="+ topic/ph pr-d/codeph ph codeph">SPI_ENC_KEY</code> ，COUNTER 值则由几部分共同产生</p>
|
||
<ul class="- topic/ul ul" id="spi_enc_configuration__ul_wyv_drx_21c" data-ofbid="spi_enc_configuration__ul_wyv_drx_21c">
|
||
<li class="- topic/li li" data-ofbid="d39061e162__20250123155159">
|
||
<p class="- topic/p p" data-ofbid="d39061e164__20250123155159">eFuse 中的 <code class="+ topic/ph pr-d/codeph ph codeph">SPI_ENC_NONCE</code></p>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d39061e170__20250123155159">
|
||
<p class="- topic/p p" data-ofbid="d39061e172__20250123155159">DTS 中配置的 <code class="+ topic/ph pr-d/codeph ph codeph">aic,spienc-tweak</code></p>
|
||
</li>
|
||
|
||
<li class="- topic/li li" data-ofbid="d39061e178__20250123155159">
|
||
<p class="- topic/p p" data-ofbid="d39061e180__20250123155159">访问数据所在的地址 <code class="+ topic/ph pr-d/codeph ph codeph">address</code></p>
|
||
<figure class="- topic/fig fig fignone" id="spi_enc_configuration__fig_k5p_frx_21c" data-ofbid="spi_enc_configuration__fig_k5p_frx_21c">
|
||
|
||
<br/><div class="imagecenter"><img class="- topic/image image imagecenter" id="spi_enc_configuration__image_xyv_drx_21c" src="../../../images/spienc/spienc_counter_value1.png" alt="spienc_counter_value1"/></div><br/>
|
||
<figcaption data-caption-side="bottom" class="- topic/title title figcapcenter"><span class="figtitleprefix fig--title-label">图<span class="fig--title-label-number"> 1</span><span class="fig--title-label-punctuation">. </span></span><span class="fig--title">COUNTER 值的生成</span></figcaption></figure>
|
||
</li>
|
||
</ul>
|
||
<p class="- topic/p p" data-ofbid="d39061e200__20250123155159">因此在使能 SPI_ENC 时，需要设置以下的 eFuse 信息：</p>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="spi_enc_configuration__table_yyv_drx_21c" data-ofbid="spi_enc_configuration__table_yyv_drx_21c" data-cols="3"><caption></caption><colgroup><col style="width:33.33333333333333%"/><col style="width:15.873015873015872%"/><col style="width:50.79365079365079%"/></colgroup><thead class="- topic/thead thead">
|
||
<tr class="- topic/row">
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="spi_enc_configuration__table_yyv_drx_21c__entry__1">eFuse 区域</th>
|
||
<th class="- topic/entry entry colsep-1 rowsep-1" id="spi_enc_configuration__table_yyv_drx_21c__entry__2">大小(BIT)</th>
|
||
<th class="- topic/entry entry colsep-0 rowsep-1" id="spi_enc_configuration__table_yyv_drx_21c__entry__3">说明</th>
|
||
</tr>
|
||
</thead><tbody class="- topic/tbody tbody">
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_enc_configuration__table_yyv_drx_21c__entry__1">SPI_ENC_KEY</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_enc_configuration__table_yyv_drx_21c__entry__2">128</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="spi_enc_configuration__table_yyv_drx_21c__entry__3">AES 密钥，烧录后应设置不可读写</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_enc_configuration__table_yyv_drx_21c__entry__1">SPI_ENC_NONCE</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-1" headers="spi_enc_configuration__table_yyv_drx_21c__entry__2">64</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-1" headers="spi_enc_configuration__table_yyv_drx_21c__entry__3">用于生成 COUTNER 的随机数，烧录后应设置不可读写</td>
|
||
</tr>
|
||
<tr class="- topic/row">
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="spi_enc_configuration__table_yyv_drx_21c__entry__1">SPI_ENC_ENABLE BIT</td>
|
||
<td class="- topic/entry entry colsep-1 rowsep-0" headers="spi_enc_configuration__table_yyv_drx_21c__entry__2">1</td>
|
||
<td class="- topic/entry entry colsep-0 rowsep-0" headers="spi_enc_configuration__table_yyv_drx_21c__entry__3">使能 BROM 的 SPI_ENC 功能，才可正确启动</td>
|
||
</tr>
|
||
</tbody></table></div>
|
||
<p class="- topic/p p" data-ofbid="d39061e269__20250123155159">具体 eFuse 区域的地址，请参考芯片的数据手册。</p>
|
||
</section>
|
||
</div>
|
||
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<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_enc_configuration__section_iyv_drx_21c" data-tocid="spi_enc_configuration__section_iyv_drx_21c">内核配置</a></div></li><li class="section-item"><div class="section-title"><a href="#spi_enc_configuration__section_lyv_drx_21c" data-tocid="spi_enc_configuration__section_lyv_drx_21c">DTS 配置</a></div></li><li class="section-item"><div class="section-title"><a href="#spi_enc_configuration__section_syv_drx_21c" data-tocid="spi_enc_configuration__section_syv_drx_21c">密钥配置</a></div></li></ul></div>
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