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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" 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">17 Dec 2024</div><div style="color: gray;">
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Read time: 5 minute(s)
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</div><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>
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<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="d46685e28__20250121171517">
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<div class="- topic/p p" data-ofbid="d46685e30__20250121171517"><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">
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<div class="- topic/p p" data-ofbid="d46685e35__20250121171517">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="mac_configuration__codeblock_wg1_3ml_sdc" data-ofbid="mac_configuration__codeblock_wg1_3ml_sdc">make kernel-menuconfig</pre></div>
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<p class="- topic/p p" data-ofbid="d46685e40__20250121171517">或使用简写命令</p>
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<div class="- topic/p p" data-ofbid="d46685e43__20250121171517">
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<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">make km</pre>
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||
</div>
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||
</div></div>
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</li><li class="- topic/li li" data-ofbid="d46685e50__20250121171517">
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<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>
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||
<div class="- topic/p p" data-ofbid="d46685e56__20250121171517">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">[*] Networking support
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Networking options
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<*> Packet socket
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<*> Unix domain sockets
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[*] TCP/IP networking
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<*> INET: socket monitoring interface
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<*> DNS Resolver support
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<*> NETLINK: socket monitoring interface</pre></div></div>
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</li><li class="- topic/li li" data-ofbid="d46685e61__20250121171517">
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<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>
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<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">Device Drivers
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[*] Network device support
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[*] Ethernet driver support
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[*] ArtInChip Gigabit Ethernet driver</pre>
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</div>
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</li></ol>
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</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>
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<div class="- topic/p p" data-ofbid="d46685e77__20250121171517">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
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设置而定，一般不得进行更改。如因更换了新的 SoC
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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">gmac0: ethernet@<span class="hl-number">10280000</span> {
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compatible = <span class="hl-string">"artinchip,aic-mac-v1.0"</span>;
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reg = <<span class="hl-number">0x10280000</span> <span class="hl-number">0x10000</span>>;
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interrupts = <GIC_SPI <span class="hl-number">7</span> IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = <span class="hl-string">"macirq"</span>;
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clocks = <&ccu CLK_GMAC0>;
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clock-names = <span class="hl-string">"gmac"</span>;
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resets = <&rst RESET_GMAC0>;
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reset-names = <span class="hl-string">"gmac"</span>;
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};</pre></div>
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||
</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>
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||
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||
<div class="- topic/p p" data-ofbid="d46685e90__20250121171517">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> 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><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="d46685e101__20250121171517"><strong class="+ topic/ph hi-d/b ph b">GMAC
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||
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">&gmac0 {
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||
pinctrl-names = <span class="hl-string">"default"</span>;
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||
pinctrl-<span class="hl-number">0</span> = <&gmac0_<span class="hl-number">1000</span>m_pins>;
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phy-handle = <&gmac0_phy>;
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||
phy-reset-gpios = <&gpio_d <span class="hl-number">3</span> GPIO_ACTIVE_HIGH>;
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||
phy-addr = <<span class="hl-number">1</span>>;
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phy-mode = <span class="hl-string">"rgmii"</span>;
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max-speed = <<span class="hl-number">1000</span>>;
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aic,tx-delay = <<span class="hl-number">0xc</span>>;
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aic,rx-delay = <<span class="hl-number">0xc</span>>;
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status = <span class="hl-string">"okay"</span>;
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gmac0_<span class="hl-number">1000</span>m_pins: gmac0-<span class="hl-number">0</span> {
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pins {
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pinmux = <AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">0</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">1</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">2</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">3</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">4</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">5</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">6</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">7</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">8</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">9</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">10</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">11</span>, <span class="hl-number">6</span>)>,
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||
<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">12</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">13</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">14</span>, <span class="hl-number">6</span>)>,
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<AIC_PINMUX(<span class="hl-string">'E'</span>, <span class="hl-number">15</span>, <span class="hl-number">6</span>)>;
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bias-disable;
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||
drive-strength = <<span class="hl-number">3</span>>;
|
||
};
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||
};</pre></li><li class="- topic/li li" data-ofbid="d46685e106__20250121171517"><strong class="+ topic/ph hi-d/b ph b">MDIO 参数</strong><div class="- topic/p p" data-ofbid="d46685e109__20250121171517">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">gmac0_mdio: mdio {
|
||
compatible = <span class="hl-string">"aicmac-mdio"</span>;
|
||
gmac0_phy: ethernet-phy@<span class="hl-number">1</span> {
|
||
reg = <<span class="hl-number">1</span>>;
|
||
};
|
||
};
|
||
};</pre></div><p class="- topic/p p" data-ofbid="d46685e113__20250121171517">MII BUS 用于连接 MAC 和 PHY。</p></li><li class="- topic/li li" data-ofbid="d46685e115__20250121171517">
|
||
<p class="- topic/p p" data-ofbid="d46685e117__20250121171517">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="d46685e121__20250121171517">
|
||
<p class="- topic/p p" data-ofbid="d46685e123__20250121171517">RMII： 百兆模式</p>
|
||
</li><li class="- topic/li li" data-ofbid="d46685e126__20250121171517">
|
||
<p class="- topic/p p" data-ofbid="d46685e128__20250121171517">RGMII：千兆模式</p>
|
||
</li></ul>
|
||
<p class="- topic/p p" data-ofbid="d46685e132__20250121171517">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="d46685e135__20250121171517"><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="d46685e138__20250121171517">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">&gmac0 {
|
||
pinctrl-names = <span class="hl-string">"default"</span>;
|
||
pinctrl-<span class="hl-number">0</span> = <&gmac0_pins>;
|
||
phy-handle = <&gmac0_phy>;
|
||
phy-reset-gpios = <&gpio_a <span class="hl-number">2</span> GPIO_ACTIVE_HIGH>;
|
||
phy-addr = <<span class="hl-number">1</span>>;
|
||
phy-mode = <span class="hl-string">"rmii"</span>;
|
||
max-speed = <<span class="hl-number">100</span>>;
|
||
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 = <<span class="hl-number">1</span>>;
|
||
};
|
||
};
|
||
};</pre></div></li><li class="- topic/li li" data-ofbid="d46685e145__20250121171517"><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="d46685e148__20250121171517">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">&gmac0 {
|
||
pinctrl-names = <span class="hl-string">"default"</span>;
|
||
pinctrl-<span class="hl-number">0</span> = <&gmac0_<span class="hl-number">1000</span>m_pins>, <&clk_out2_pins_b>;
|
||
phy-handle = <&gmac0_phy>;
|
||
phy-reset-gpios = <&gpio_f <span class="hl-number">10</span> GPIO_ACTIVE_HIGH>;
|
||
phy-addr = <<span class="hl-number">1</span>>;
|
||
phy-mode = <span class="hl-string">"rgmii"</span>;
|
||
max-speed = <<span class="hl-number">1000</span>>;
|
||
aic,tx-delay = <<span class="hl-number">0xc</span>>;
|
||
aic,rx-delay = <<span class="hl-number">0xc</span>>;
|
||
|
||
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 = <<span class="hl-number">1</span>>;
|
||
};
|
||
};
|
||
};</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="d46685e161__20250121171517">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="d46685e164__20250121171517">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="d46685e167__20250121171517">配置代码<div class="- topic/p p" data-ofbid="d46685e169__20250121171517">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">plat->aicmac_clk = devm_clk_get(&pdev->dev, AICMAC_RESOURCE_NAME);
|
||
clk_set_rate(plat->aicmac_clk, CSR_F_<span class="hl-number">50</span>M);
|
||
clk_prepare_enable(plat->aicmac_clk);</pre></div></li><li class="- topic/li li" data-ofbid="d46685e173__20250121171517">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">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></pre></li></ol></li><li class="- topic/li li" data-ofbid="d46685e177__20250121171517">PHY 工作时钟<p class="- topic/p p" data-ofbid="d46685e179__20250121171517">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="d46685e181__20250121171517">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">&cmu {
|
||
clk-out0 = <<span class="hl-number">25000000</span>>;
|
||
clk-out1 = <<span class="hl-number">25000000</span>>;
|
||
clk-out2 = <<span class="hl-number">25000000</span>>;
|
||
clk-out3 = <<span class="hl-number">25000000</span>>;
|
||
<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>
|
||
};</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">&gmac0 {
|
||
pinctrl-names = <span class="hl-string">"default"</span>;
|
||
pinctrl-<span class="hl-number">0</span> = <&gmac0_<span class="hl-number">1000</span>m_pins>, <&clk_out2_pins_b>;
|
||
}</pre></div></li><li class="- topic/li li" data-ofbid="d46685e190__20250121171517">MDC 时钟<div class="- topic/p p" data-ofbid="d46685e192__20250121171517">
|
||
<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="d46685e195__20250121171517">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"><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->plat->clk_csr << mdio_data->mii_reg.clk_csr_shift) &
|
||
mdio_data->mii_reg.clk_csr_mask;</pre></li><li class="- topic/li li" data-ofbid="d46685e199__20250121171517">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">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></pre></li></ol>
|
||
</div></li><li class="- topic/li li" data-ofbid="d46685e204__20250121171517">MDATA 时钟<div class="- topic/p p" data-ofbid="d46685e206__20250121171517">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="d46685e209__20250121171517">
|
||
<p class="- topic/p p" data-ofbid="d46685e211__20250121171517">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="d46685e214__20250121171517">
|
||
<p class="- topic/p p" data-ofbid="d46685e216__20250121171517">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="d46685e220__20250121171517">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="d46685e223__20250121171517">
|
||
<p class="- topic/p p" data-ofbid="d46685e225__20250121171517">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="d46685e230__20250121171517">
|
||
<p class="- topic/p p" data-ofbid="d46685e232__20250121171517">寄存器：0x18000410 值为 00000002</p>
|
||
</li></ul></li><li class="- topic/li li" data-ofbid="d46685e235__20250121171517">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="d46685e238__20250121171517">
|
||
<p class="- topic/p p" data-ofbid="d46685e240__20250121171517">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="d46685e245__20250121171517">
|
||
<p class="- topic/p p" data-ofbid="d46685e247__20250121171517">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="d46685e256__20250121171517">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="d46685e260__20250121171517">调试配置<div class="- topic/p p" data-ofbid="d46685e262__20250121171517">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"> local-mac-address = [<span class="hl-number">2e</span> f6 <span class="hl-number">01</span> e3 <span class="hl-number">76</span> b6]</pre></div></li><li class="- topic/li li" data-ofbid="d46685e272__20250121171517">用户配置<p class="- topic/p p" data-ofbid="d46685e274__20250121171517">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="d46685e276__20250121171517">加密 CHIPID<p class="- topic/p p" data-ofbid="d46685e278__20250121171517">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="d46685e280__20250121171517">Random<p class="- topic/p p" data-ofbid="d46685e282__20250121171517">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></div></article></main></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="#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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