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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">
<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/mac/mac_config.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">参数配置</h1>
<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
Read time: 5 minute(s)
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<div class="- topic/body concept/conbody body conbody">
<section class="- topic/section section" id="mac_configuration__section_j4p_jts_4dc" data-ofbid="mac_configuration__section_j4p_jts_4dc"><h2 class="- topic/title title sectiontitle">内核配置</h2>
<ol class="- topic/ol ol" id="mac_configuration__ol_ptj_nts_4dc" data-ofbid="mac_configuration__ol_ptj_nts_4dc">
<li class="- topic/li li" data-ofbid="d47553e40__20250123155201">
<div class="- topic/p p" data-ofbid="d47553e42__20250123155201"><strong class="+ topic/ph hi-d/b ph b">进入 kernel 的功能配置界面</strong><div class="- topic/div div">
<div class="- topic/p p" data-ofbid="d47553e47__20250123155201">在 SDK 根目录下，执行下列命令，进入 kernel
的功能配置界面：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_wg1_3ml_sdc" data-ofbid="mac_configuration__codeblock_wg1_3ml_sdc"><code>make kernel-menuconfig</code></pre></div>
<p class="- topic/p p" data-ofbid="d47553e52__20250123155201">或使用简写命令</p>
<div class="- topic/p p" data-ofbid="d47553e55__20250123155201">
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_uss_hml_sdc" data-ofbid="mac_configuration__codeblock_uss_hml_sdc"><code>make km</code></pre>
</div>
</div></div>
</li>
<li class="- topic/li li" data-ofbid="d47553e63__20250123155201">
<div class="- topic/div div" id="mac_configuration__section_dr2_xxr_21c"><strong class="+ topic/ph hi-d/b ph b">配置网络功能</strong>
<div class="- topic/p p" data-ofbid="d47553e69__20250123155201">如需在内核中使用以太网功能，则在内核配置界面打开和配置网络相关功能，如下所示：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_lqx_yxr_21c" data-ofbid="mac_configuration__codeblock_lqx_yxr_21c"><code>[*] Networking support
Networking options
&lt;*&gt; Packet socket
&lt;*&gt; Unix domain sockets
[*] TCP/IP networking
&lt;*&gt; INET: socket monitoring interface
&lt;*&gt; DNS Resolver support
&lt;*&gt; NETLINK: socket monitoring interface</code></pre></div></div>
</li>
<li class="- topic/li li" data-ofbid="d47553e75__20250123155201">
<div class="- topic/div div" id="mac_configuration__section_kz2_yxr_21c"><strong class="+ topic/ph hi-d/b ph b">模块驱动配置</strong>
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_hcb_zxr_21c" data-ofbid="mac_configuration__codeblock_hcb_zxr_21c"><code>Device Drivers
[*] Network device support
[*] Ethernet driver support
[*] ArtInChip Gigabit Ethernet driver</code></pre>
</div>
</li>
</ol>
</section>
<section class="- topic/section section" id="mac_configuration__section_nz5_nts_4dc" data-ofbid="mac_configuration__section_nz5_nts_4dc"><h2 class="- topic/title title sectiontitle">系统参数配置</h2>
<div class="- topic/p p" data-ofbid="d47553e93__20250123155201">系统参数主要存放于 <span class="+ topic/ph sw-d/filepath ph filepath">target/d211/common/d211.dtsi</span> 文件中，模块系统参数随 SoC
设置而定，一般不得进行更改。如因更换了新的 SoC
需要修改系统参数，必须在专业人士的指导下更改。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_lyn_1yr_21c" data-ofbid="mac_configuration__codeblock_lyn_1yr_21c"><code>gmac0: ethernet@<span class="hl-number">10280000</span> {
compatible = <span class="hl-string">"artinchip,aic-mac-v1.0"</span>;
reg = &lt;<span class="hl-number">0x10280000</span> <span class="hl-number">0x10000</span>&gt;;
interrupts = &lt;GIC_SPI <span class="hl-number">7</span> IRQ_TYPE_LEVEL_HIGH&gt;;
interrupt-names = <span class="hl-string">"macirq"</span>;
clocks = &lt;&amp;ccu CLK_GMAC0&gt;;
clock-names = <span class="hl-string">"gmac"</span>;
resets = &lt;&amp;rst RESET_GMAC0&gt;;
reset-names = <span class="hl-string">"gmac"</span>;
};</code></pre></div>
</section>
<section class="- topic/section section" id="mac_configuration__section_yz1_sts_4dc" data-ofbid="mac_configuration__section_yz1_sts_4dc"><h2 class="- topic/title title sectiontitle">功能参数配置</h2>
<div class="- topic/p p" data-ofbid="d47553e107__20250123155201">功能参数主要针对某一个使用方案而定，不同的方案使用的参数可能不同。功能参数参数主要存放于 <span class="+ topic/ph sw-d/filepath ph filepath">
target/d211/xxx/board.dts</span> 文件中，功能参数的设置必须和硬件原理图相匹配。<div class="- topic/note note note note_note" id="mac_configuration__note_t5x_xws_4dc" data-ofbid="mac_configuration__note_t5x_xws_4dc"><span class="note__title">注：</span> <div class="note__body">关于详细的参数描述，可查看<a xml:lang="zh-CN" lang="zh-CN" class="- topic/xref xref" href="mac_func_param.html">功能参数描述</a></div></div><ul class="- topic/ul ul" id="mac_configuration__ul_xq1_2yr_21c" data-ofbid="mac_configuration__ul_xq1_2yr_21c">
<li class="- topic/li li" data-ofbid="d47553e119__20250123155201"><strong class="+ topic/ph hi-d/b ph b">GMAC
参数</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_sjd_5ws_4dc" data-ofbid="mac_configuration__codeblock_sjd_5ws_4dc"><code>&amp;gmac0 {
pinctrl-names = <span class="hl-string">"default"</span>;
pinctrl-<span class="hl-number">0</span> = &lt;&amp;gmac0_<span class="hl-number">1000</span>m_pins&gt;;
phy-handle = &lt;&amp;gmac0_phy&gt;;
phy-reset-gpios = &lt;&amp;gpio_d <span class="hl-number">3</span> GPIO_ACTIVE_HIGH&gt;;
phy-addr = &lt;<span class="hl-number">1</span>&gt;;
phy-mode = <span class="hl-string">"rgmii"</span>;
max-speed = &lt;<span class="hl-number">1000</span>&gt;;
aic,tx-delay = &lt;<span class="hl-number">0xc</span>&gt;;
aic,rx-delay = &lt;<span class="hl-number">0xc</span>&gt;;
status = <span class="hl-string">"okay"</span>;
gmac0_<span class="hl-number">1000</span>m_pins: gmac0-<span class="hl-number">0</span> {
pins {
pinmux = &lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">0</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">1</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">2</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">3</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">4</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">5</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">6</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">7</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">8</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">9</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">10</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">11</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">12</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">13</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">14</span>, <span class="hl-number">6</span>)&gt;,
&lt;AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">15</span>, <span class="hl-number">6</span>)&gt;;
bias-disable;
drive-strength = &lt;<span class="hl-number">3</span>&gt;;
};
};</code></pre></li>
<li class="- topic/li li" data-ofbid="d47553e125__20250123155201"><strong class="+ topic/ph hi-d/b ph b">MDIO 参数</strong><div class="- topic/p p" data-ofbid="d47553e128__20250123155201">MDIO 参数用于配置 MII
BUS：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_g21_wws_4dc" data-ofbid="mac_configuration__codeblock_g21_wws_4dc"><code>gmac0_mdio: mdio {
compatible = <span class="hl-string">"aicmac-mdio"</span>;
gmac0_phy: ethernet-phy@<span class="hl-number">1</span> {
reg = &lt;<span class="hl-number">1</span>&gt;;
};
};
};</code></pre></div><p class="- topic/p p" data-ofbid="d47553e132__20250123155201">MII BUS 用于连接 MAC 和 PHY。</p></li>
<li class="- topic/li li" data-ofbid="d47553e135__20250123155201">
<p class="- topic/p p" data-ofbid="d47553e137__20250123155201">配置 PHY 模块的工作模式，目前 MAC 仅支持 Reduced 接口：</p>
<ul class="- topic/ul ul" id="mac_configuration__ul_mp3_cyr_21c" data-ofbid="mac_configuration__ul_mp3_cyr_21c">
<li class="- topic/li li" data-ofbid="d47553e142__20250123155201">
<p class="- topic/p p" data-ofbid="d47553e144__20250123155201">RMII： 百兆模式</p>
</li>
<li class="- topic/li li" data-ofbid="d47553e148__20250123155201">
<p class="- topic/p p" data-ofbid="d47553e150__20250123155201">RGMII：千兆模式</p>
</li>
</ul>
<p class="- topic/p p" data-ofbid="d47553e155__20250123155201">如 SoC 中自带了 MAC 模块，则 MAC 在和 PHY 配合工作前，需要匹配好二者的工作模式。</p>
</li>
<li class="- topic/li li" data-ofbid="d47553e159__20250123155201"><strong class="+ topic/ph hi-d/b ph b">百兆功能参数配置</strong><div class="- topic/p p" data-ofbid="d47553e162__20250123155201">参考方案为 <span class="+ topic/ph sw-d/filepath ph filepath">per2-spinand</span>，MAC
工作在百兆模式下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_hjg_pyr_21c" data-ofbid="mac_configuration__codeblock_hjg_pyr_21c"><code>&amp;gmac0 {
pinctrl-names = <span class="hl-string">"default"</span>;
pinctrl-<span class="hl-number">0</span> = &lt;&amp;gmac0_pins&gt;;
phy-handle = &lt;&amp;gmac0_phy&gt;;
phy-reset-gpios = &lt;&amp;gpio_a <span class="hl-number">2</span> GPIO_ACTIVE_HIGH&gt;;
phy-addr = &lt;<span class="hl-number">1</span>&gt;;
phy-mode = <span class="hl-string">"rmii"</span>;
max-speed = &lt;<span class="hl-number">100</span>&gt;;
aic,use_extclk;
status = <span class="hl-string">"okay"</span>;
gmac0_mdio: mdio {
compatible = <span class="hl-string">"aicmac-mdio"</span>;
gmac0_phy: ethernet-phy@<span class="hl-number">1</span> {
reg = &lt;<span class="hl-number">1</span>&gt;;
};
};
};</code></pre></div></li>
<li class="- topic/li li" data-ofbid="d47553e170__20250123155201"><strong class="+ topic/ph hi-d/b ph b">千兆功能参数配置</strong><div class="- topic/p p" data-ofbid="d47553e173__20250123155201">参考方案为 <span class="+ topic/ph sw-d/filepath ph filepath">per1</span>，MAC
工作在千兆模式下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_pq4_pyr_21c" data-ofbid="mac_configuration__codeblock_pq4_pyr_21c"><code>&amp;gmac0 {
pinctrl-names = <span class="hl-string">"default"</span>;
pinctrl-<span class="hl-number">0</span> = &lt;&amp;gmac0_<span class="hl-number">1000</span>m_pins&gt;, &lt;&amp;clk_out2_pins_b&gt;;
phy-handle = &lt;&amp;gmac0_phy&gt;;
phy-reset-gpios = &lt;&amp;gpio_f <span class="hl-number">10</span> GPIO_ACTIVE_HIGH&gt;;
phy-addr = &lt;<span class="hl-number">1</span>&gt;;
phy-mode = <span class="hl-string">"rgmii"</span>;
max-speed = &lt;<span class="hl-number">1000</span>&gt;;
aic,tx-delay = &lt;<span class="hl-number">0xc</span>&gt;;
aic,rx-delay = &lt;<span class="hl-number">0xc</span>&gt;;
status = <span class="hl-string">"okay"</span>;
gmac0_mdio: mdio {
compatible = <span class="hl-string">"aicmac-mdio"</span>;
gmac0_phy: ethernet-phy@<span class="hl-number">1</span> {
reg = &lt;<span class="hl-number">1</span>&gt;;
};
};
};</code></pre></div></li>
</ul></div>
</section>
<section class="- topic/section section" id="mac_configuration__section_zym_1xs_4dc" data-ofbid="mac_configuration__section_zym_1xs_4dc"><h2 class="- topic/title title sectiontitle">时钟配置</h2>
<div class="- topic/p p" data-ofbid="d47553e188__20250123155201">MAC 和 PHY 的协同工作时，涉及以下时钟配置：<ul class="- topic/ul ul" id="mac_configuration__ul_fhd_syr_21c" data-ofbid="mac_configuration__ul_fhd_syr_21c">
<li class="- topic/li li" data-ofbid="d47553e192__20250123155201">MAC 工作时钟<ol class="- topic/ol ol" id="mac_configuration__ol_hn4_5yr_21c" data-ofbid="mac_configuration__ol_hn4_5yr_21c">
<li class="- topic/li li" data-ofbid="d47553e196__20250123155201">配置代码<div class="- topic/p p" data-ofbid="d47553e198__20250123155201">MAC 的内部工作时钟通过 PLL_INT1 分频获得，为 50M，
工作时钟不会因为方案的不同而不同，为一固定值。<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_z3q_tyr_21c" data-ofbid="mac_configuration__codeblock_z3q_tyr_21c"><code>plat-&gt;aicmac_clk = devm_clk_get(&amp;pdev-&gt;dev, AICMAC_RESOURCE_NAME);
clk_set_rate(plat-&gt;aicmac_clk, CSR_F_<span class="hl-number">50</span>M);
clk_prepare_enable(plat-&gt;aicmac_clk);</code></pre></div></li>
<li class="- topic/li li" data-ofbid="d47553e203__20250123155201">寄存器查验<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_ggx_vyr_21c" data-ofbid="mac_configuration__codeblock_ggx_vyr_21c"><code>reg-dump -a <span class="hl-number">0x18020440</span> -c <span class="hl-number">4</span>
<span class="hl-number">0x18020440</span>: <span class="hl-number">00003117</span> <span class="hl-number">00003117</span> <span class="hl-number">00000000</span> <span class="hl-number">00000000</span></code></pre></li>
</ol></li>
<li class="- topic/li li" data-ofbid="d47553e209__20250123155201">PHY 工作时钟<p class="- topic/p p" data-ofbid="d47553e211__20250123155201">PHY 的工作时钟一般为 25M， 通常外挂一个晶振提供时钟给 PHY 模组。D211 对外提供几组时钟，也可以使用该时钟供给
PHY 模块工作。</p><div class="- topic/p p" data-ofbid="d47553e213__20250123155201">在 CMU 中使能 PHY 工作时钟 <span class="+ topic/keyword pr-d/parmname keyword parmname">clk-out</span>，且在 MAC
中配置
IO：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_ek2_bzr_21c" data-ofbid="mac_configuration__codeblock_ek2_bzr_21c"><code>&amp;cmu {
clk-out0 = &lt;<span class="hl-number">25000000</span>&gt;;
clk-out1 = &lt;<span class="hl-number">25000000</span>&gt;;
clk-out2 = &lt;<span class="hl-number">25000000</span>&gt;;
clk-out3 = &lt;<span class="hl-number">25000000</span>&gt;;
<em class="hl-comment">// clk-out0-enable;</em>
<em class="hl-comment">// clk-out1-enable;</em>
<em class="hl-comment">/* Enable clock out2 */</em>
clk-out2-enable;
<em class="hl-comment">// clk-out3-enable;</em>
};</code></pre><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_b5f_mbr_sdc" data-ofbid="mac_configuration__codeblock_b5f_mbr_sdc"><code>&amp;gmac0 {
pinctrl-names = <span class="hl-string">"default"</span>;
pinctrl-<span class="hl-number">0</span> = &lt;&amp;gmac0_<span class="hl-number">1000</span>m_pins&gt;, &lt;&amp;clk_out2_pins_b&gt;;
}</code></pre></div></li>
<li class="- topic/li li" data-ofbid="d47553e223__20250123155201">MDC 时钟<div class="- topic/p p" data-ofbid="d47553e225__20250123155201">
<ol class="- topic/ol ol" id="mac_configuration__ol_wpq_yyr_21c" data-ofbid="mac_configuration__ol_wpq_yyr_21c">
<li class="- topic/li li" data-ofbid="d47553e229__20250123155201">配置代码<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_olh_xyr_21c" data-ofbid="mac_configuration__codeblock_olh_xyr_21c"><code><span class="hl-directive">define</span> AICMAC_CSR_DEFAULT AICMAC_CSR_<span class="hl-number">150</span>_<span class="hl-number">250</span>M
value |= (priv-&gt;plat-&gt;clk_csr &lt;&lt; mdio_data-&gt;mii_reg.clk_csr_shift) &amp;
mdio_data-&gt;mii_reg.clk_csr_mask;</code></pre></li>
<li class="- topic/li li" data-ofbid="d47553e234__20250123155201">寄存器查验<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_plh_xyr_21c" data-ofbid="mac_configuration__codeblock_plh_xyr_21c"><code>BIT(<span class="hl-number">2</span>,<span class="hl-number">5</span>) 为 <span class="hl-number">0100</span>，<span class="hl-number">150</span>-<span class="hl-number">250</span>MHz
reg-dump -a <span class="hl-number">0x10280090</span> -c <span class="hl-number">4</span>
<span class="hl-number">0x10280090</span>: <span class="hl-number">00000</span>a90 <span class="hl-number">00000000</span> <span class="hl-number">00000000</span> <span class="hl-number">00000000</span></code></pre></li>
</ol>
</div></li>
<li class="- topic/li li" data-ofbid="d47553e241__20250123155201">MDATA 时钟<div class="- topic/p p" data-ofbid="d47553e243__20250123155201">MDATA 时钟 (TXC) 为 MAC 和 PHY 进行数据传输的时钟：<ul class="- topic/ul ul" id="mac_configuration__ul_sxj_ryr_21c" data-ofbid="mac_configuration__ul_sxj_ryr_21c">
<li class="- topic/li li" data-ofbid="d47553e247__20250123155201">
<p class="- topic/p p" data-ofbid="d47553e249__20250123155201">百兆网络：可以是 MAC 供给 PHY， 也可以是 PHY 供给 MAC</p>
</li>
<li class="- topic/li li" data-ofbid="d47553e253__20250123155201">
<p class="- topic/p p" data-ofbid="d47553e255__20250123155201">千兆网络：只能是 MAC 供给 PHY，RGMII0-TXCK 端口</p>
</li>
</ul><ul class="- topic/ul ul" id="mac_configuration__ul_vvt_qbr_sdc" data-ofbid="mac_configuration__ul_vvt_qbr_sdc">
<li class="- topic/li li" data-ofbid="d47553e261__20250123155201">如果 PHY 提供给 MAC：<ul class="- topic/ul ul" id="mac_configuration__ul_txj_ryr_21c" data-ofbid="mac_configuration__ul_txj_ryr_21c">
<li class="- topic/li li" data-ofbid="d47553e265__20250123155201">
<p class="- topic/p p" data-ofbid="d47553e267__20250123155201">在 DTS 中设置 <span class="+ topic/keyword pr-d/parmname keyword parmname">aic,use_extclk</span></p>
</li>
<li class="- topic/li li" data-ofbid="d47553e273__20250123155201">
<p class="- topic/p p" data-ofbid="d47553e275__20250123155201">寄存器：0x18000410 值为 00000002</p>
</li>
</ul></li>
<li class="- topic/li li" data-ofbid="d47553e280__20250123155201">如果 MAC 提供给 PHY：<ul class="- topic/ul ul" id="mac_configuration__ul_uxj_ryr_21c" data-ofbid="mac_configuration__ul_uxj_ryr_21c">
<li class="- topic/li li" data-ofbid="d47553e284__20250123155201">
<p class="- topic/p p" data-ofbid="d47553e286__20250123155201">在 DTS 中不设置 <span class="+ topic/ph sw-d/filepath ph filepath">aic,use_extclk</span></p>
</li>
<li class="- topic/li li" data-ofbid="d47553e292__20250123155201">
<p class="- topic/p p" data-ofbid="d47553e294__20250123155201">寄存器：0x18000410 值为 00000000</p>
</li>
</ul></li>
</ul></div></li>
</ul></div>
</section>
<section class="- topic/section section" id="mac_configuration__section_nvn_cxs_4dc" data-ofbid="mac_configuration__section_nvn_cxs_4dc"><h2 class="- topic/title title sectiontitle">MAC 地址配置</h2>
<p class="- topic/p p" data-ofbid="d47553e307__20250123155201">MAC 地址的使用优先级如下所示：</p>
<ol class="- topic/ol ol" id="mac_configuration__ul_ehj_3zr_21c" data-ofbid="mac_configuration__ul_ehj_3zr_21c">
<li class="- topic/li li" data-ofbid="d47553e312__20250123155201">调试配置<div class="- topic/p p" data-ofbid="d47553e314__20250123155201">在 <span class="+ topic/ph sw-d/filepath ph filepath">board.dts</span> 的 <code class="+ topic/ph pr-d/codeph ph codeph">gmac</code>
配置域中添加下列信息：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mac_configuration__codeblock_vtt_vbr_sdc" data-ofbid="mac_configuration__codeblock_vtt_vbr_sdc"><code> local-mac-address = [<span class="hl-number">2e</span> f6 <span class="hl-number">01</span> e3 <span class="hl-number">76</span> b6]</code></pre></div></li>
<li class="- topic/li li" data-ofbid="d47553e325__20250123155201">用户配置<p class="- topic/p p" data-ofbid="d47553e327__20250123155201">用户生产时配置在特殊数据分区中的 MAC 地址。</p></li>
<li class="- topic/li li" data-ofbid="d47553e330__20250123155201">加密 CHIPID<p class="- topic/p p" data-ofbid="d47553e332__20250123155201">uboot 中获取 chipID，加密成 mac 地址，并通过 dts 的 local-mac-address 配置给 kernel
使用</p></li>
<li class="- topic/li li" data-ofbid="d47553e335__20250123155201">Random<p class="- topic/p p" data-ofbid="d47553e337__20250123155201">kernel 驱动中在无法从以上获得 mac 地址的时候，会 random 一个值作为 mac 地址使用</p></li>
</ol>
</section>
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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="#mac_configuration__section_j4p_jts_4dc" data-tocid="mac_configuration__section_j4p_jts_4dc">内核配置</a></div></li><li class="section-item"><div class="section-title"><a href="#mac_configuration__section_nz5_nts_4dc" data-tocid="mac_configuration__section_nz5_nts_4dc">系统参数配置</a></div></li><li class="section-item"><div class="section-title"><a href="#mac_configuration__section_yz1_sts_4dc" data-tocid="mac_configuration__section_yz1_sts_4dc">功能参数配置</a></div></li><li class="section-item"><div class="section-title"><a href="#mac_configuration__section_zym_1xs_4dc" data-tocid="mac_configuration__section_zym_1xs_4dc">时钟配置</a></div></li><li class="section-item"><div class="section-title"><a href="#mac_configuration__section_nvn_cxs_4dc" data-tocid="mac_configuration__section_nvn_cxs_4dc">MAC 地址配置</a></div></li></ul></div>
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