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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/bringup/bringup-rgb-display-config.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">RGB</h1>
<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
Read time: 4 minute(s)
</div>
<div class="- topic/body concept/conbody body conbody">
<section class="- topic/section section" id="bringup_rgbDisplayConfig__section_pwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__section_pwf_vzb_d1c"><h2 class="- topic/title title sectiontitle">配置 Uboot </h2>
<div class="- topic/p p" data-ofbid="d184257e38__20250123155219">在 Luban 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">make um</span>，进入 uboot
的功能配置界面，使能显示模块驱动：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__codeblock_bcr_zzb_d1c" data-ofbid="bringup_rgbDisplayConfig__codeblock_bcr_zzb_d1c"><code>Device Drivers
Graphics support
ArtInChip Graphics ---&gt;
[*] Enable ArtInChip Video Support
[*] ArtInChip display rgb support
[ ] ArtInChip display lvds support
[ ] ArtInChip display mipi-dsi support
&lt;*&gt; ArtInChip Panel Drivers (ArtInChip general RGB panel) ---&gt;
</code></pre></div>
</section>
<section class="- topic/section section" id="bringup_rgbDisplayConfig__section_rwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__section_rwf_vzb_d1c"><h2 class="- topic/title title sectiontitle">配置 Kernel </h2>
<p class="- topic/p p" data-ofbid="d184257e52__20250123155219">在 Luban 根目录下执行 <span class="+ topic/keyword sw-d/cmdname keyword cmdname">make km</span>，进入 Kernel 的功能配置界面，使能显示模块驱动：</p>
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__pre_swf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__pre_swf_vzb_d1c"><code>Device Drivers
Graphics support
ArtInChip Graphics ---&gt;
&lt;*&gt; ArtInChip Framebuffer support
[*] ArtInChip display rgb support
[ ] ArtInChip display lvds support
[ ] ArtInChip display mipi-dsi support
&lt;*&gt; ArtInChip Panel Drivers (ArtInChip general RGB panel) ---&gt;
</code></pre>
</section>
<section class="- topic/section section" id="bringup_rgbDisplayConfig__section_twf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__section_twf_vzb_d1c"><h2 class="- topic/title title sectiontitle">uboot
dts</h2><p class="- topic/p p" data-ofbid="d184257e65__20250123155219">Uboot
如果要进行显示，则声明相应的配置为预加载，以 <span class="+ topic/ph sw-d/filepath ph filepath">demo88_nand</span> 工程为例，文件为
<span class="+ topic/ph sw-d/filepath ph filepath">target/d211/demo88_nand/board-u-boot.dtsi</span></p><strong class="+ topic/ph hi-d/b ph b">声明通路</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__pre_uwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__pre_uwf_vzb_d1c"><code>&amp;disp {
u-boot,dm-pre-reloc;
fb0: fb@<span class="hl-number">0</span> {
u-boot,dm-pre-reloc;
port {
fb0_out: endpoint {
u-boot,dm-pre-reloc;
}
};
};
};
&amp;de0 {
u-boot,dm-pre-reloc;
port@<span class="hl-number">0</span> {
de0_in: endpoint {
u-boot,dm-pre-reloc;
};
};
port@<span class="hl-number">1</span> {
de0_out: endpoint {
u-boot,dm-pre-reloc;
};
};
};
&amp;rgb0 { <em class="hl-comment">//RGB</em>
u-boot,dm-pre-reloc;
port@<span class="hl-number">0</span> {
rgb0_in: endpoint {
u-boot,dm-pre-reloc;
};
};
port@<span class="hl-number">1</span> {
rgb0_out: endpoint {
u-boot,dm-pre-reloc;
};
};
};
</code></pre><strong class="+ topic/ph hi-d/b ph b">声明屏幕参数</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__pre_vwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__pre_vwf_vzb_d1c"><code>panel_rgb {
u-boot,dm-pre-reloc;
port {
panel_rgb_in: endpoint {
u-boot,dm-pre-reloc;
};
};
display-timings {
u-boot,dm-pre-reloc;
timing0: <span class="hl-number">1024</span>x600 {
u-boot,dm-pre-reloc;
};
};
};</code></pre><strong class="+ topic/ph hi-d/b ph b">声明屏幕引脚</strong><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__pre_wwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__pre_wwf_vzb_d1c"><code>lcd_rgb565_ld_pins: lcd-<span class="hl-number">1</span> {
u-boot,dm-pre-reloc;
pins {
u-boot,dm-pre-reloc;
};
};</code></pre></section>
<section class="- topic/section section" id="bringup_rgbDisplayConfig__section_xwf_vzb_d1c" data-ofbid="bringup_rgbDisplayConfig__section_xwf_vzb_d1c"><h2 class="- topic/title title sectiontitle">系统 dts</h2>
<div class="- topic/p p" data-ofbid="d184257e94__20250123155219">系统的 dts 将进行完整的功能配置，以 <span class="+ topic/ph sw-d/filepath ph filepath">demo88_nand</span> 工程为例，文件为<span class="+ topic/ph sw-d/filepath ph filepath">
target/d211/demo88_nand/board.dts </span>：<ol class="- topic/ol ol" id="bringup_rgbDisplayConfig__ol_szc_p1c_d1c" data-ofbid="bringup_rgbDisplayConfig__ol_szc_p1c_d1c">
<li class="- topic/li li" data-ofbid="d184257e104__20250123155219">配置通路<div class="- topic/p p" data-ofbid="d184257e106__20250123155219">通过 port 和 status
结点，定义一条数据通道：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__codeblock_q3t_q1c_d1c" data-ofbid="bringup_rgbDisplayConfig__codeblock_q3t_q1c_d1c"><code>fb | de | | rgb | panel
port --&gt; port0 port1 --&gt; port0 port1 --&gt; port
&amp;fb0 {
port {
fb0_out: endpoint {
remote-endpoint = &lt;&amp;de0_in&gt;;
};
};
};
&amp;de0 {
status = <span class="hl-string">"okay"</span>;
port@<span class="hl-number">0</span> {
reg = &lt;<span class="hl-number">0</span>&gt;;
de0_in: endpoint {
remote-endpoint = &lt;&amp;fb0_out&gt;;
};
port@<span class="hl-number">1</span> {
reg = &lt;<span class="hl-number">1</span>&gt;;
de0_out: endpoint {
remote-endpoint = &lt;&amp;rgb0_in&gt;; <em class="hl-comment">//RGB</em>
}
};
};
&amp;rgb0 {
pinctrl-names = <span class="hl-string">"default"</span>, <span class="hl-string">"sleep"</span>;
pinctrl-<span class="hl-number">0</span> = &lt;&amp;lcd_rgb565_ld_pins&gt;; <em class="hl-comment">//RGB</em>
pinctrl-<span class="hl-number">1</span> = &lt;&amp;lcd_rgb565_ld_sleep_pins&gt;;
status = <span class="hl-string">"okay"</span>;
port@<span class="hl-number">0</span> {
reg = &lt;<span class="hl-number">0</span>&gt;;
rgb0_in: endpoint {
remote-endpoint = &lt;&amp;de0_out&gt;;
}
};
port@<span class="hl-number">1</span> {
reg = &lt;<span class="hl-number">1</span>&gt;;
rgb0_out: endpoint {
remote-endpoint = &lt;&amp;panel_rgb_in&gt;; <em class="hl-comment">//RGB</em>
};
};
}</code></pre></div></li>
<li class="- topic/li li" data-ofbid="d184257e111__20250123155219">配置屏幕参数<p class="- topic/p p" data-ofbid="d184257e113__20250123155219">其中类似 <span class="+ topic/keyword pr-d/parmname keyword parmname">enable-gpios</span> 控制引脚需要根据实际显示屏的需要增加或减少，驱动中做相应修改，
<span class="+ topic/keyword pr-d/parmname keyword parmname">rgb-mode</span> 和 <span class="+ topic/keyword pr-d/parmname keyword parmname">interface-format</span>
需要从规格书中获取， <span class="+ topic/keyword pr-d/parmname keyword parmname">data-order</span>
<span class="+ topic/keyword pr-d/parmname keyword parmname">data-mirror</span> 需要根据板级走线的顺序设置相关参数。
<span class="+ topic/keyword pr-d/parmname keyword parmname">clock-phase</span> 需要根据最终实际的显示效果做相应调整。 关于参数详细的解析，参考 <a class="- topic/xref xref" href="../display/display_parameter_panel_rgb.html">Panel_RGB</a>
的配置说明。</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__codeblock_kjc_s1c_d1c" data-ofbid="bringup_rgbDisplayConfig__codeblock_kjc_s1c_d1c"><code>panel_rgb {
compatible = <span class="hl-string">"artinchip,aic-general-rgb-panel"</span>;
status = <span class="hl-string">"okay"</span>;
enable-gpios = &lt;&amp;gpio_e <span class="hl-number">19</span> GPIO_ACTIVE_HIGH&gt;;
sleep-gpios = &lt;&amp;gpio_e <span class="hl-number">15</span> GPIO_ACTIVE_HIGH&gt;;
rgb-mode = &lt;PRGB&gt;;
interface-format = &lt;PRGB_<span class="hl-number">16</span>BIT_LD&gt;;
clock-phase = &lt;DEGREE_<span class="hl-number">0</span>&gt;;
data-order = &lt;RGB&gt;;
disp-dither = &lt;DITHER_RGB565&gt;;
port {
panel_rgb_in: endpoint {
remote-endpoint = &lt;&amp;rgb0_out&gt;;
};
};
display-timings {
native-mode = &lt;&amp;timing0&gt;;
timing0: <span class="hl-number">1024</span>x600 {
lock-frequency = &lt;<span class="hl-number">52000000</span>&gt;;
hactive = &lt;<span class="hl-number">1024</span>&gt;;
vactive = &lt;<span class="hl-number">600</span>&gt;;
hback-porch = &lt;<span class="hl-number">160</span>&gt;;
hfront-porch = &lt;<span class="hl-number">160</span>&gt;;
hsync-len = &lt;<span class="hl-number">20</span>&gt;;
vback-porch = &lt;<span class="hl-number">12</span>&gt;;
vfront-porch = &lt;<span class="hl-number">20</span>&gt;;
vsync-len = &lt;<span class="hl-number">3</span>&gt;;
de-active = &lt;<span class="hl-number">1</span>&gt;;
pixelclk-active = &lt;<span class="hl-number">1</span>&gt;;
};
};</code></pre></li>
<li class="- topic/li li" data-ofbid="d184257e141__20250123155219">配置引脚<p class="- topic/p p" data-ofbid="d184257e143__20250123155219">引脚的配置统一在 <span class="+ topic/ph sw-d/filepath ph filepath">d211-pinctrl.dtsi</span> 中完成，在
<span class="+ topic/keyword pr-d/parmname keyword parmname">rgb0</span>
节点中直接进行了引用：</p><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="bringup_rgbDisplayConfig__codeblock_x4l_t1c_d1c" data-ofbid="bringup_rgbDisplayConfig__codeblock_x4l_t1c_d1c"><code>&amp;rgb0 {
pinctrl-names = <span class="hl-string">"default"</span>, <span class="hl-string">"sleep"</span>;
pinctrl-<span class="hl-number">0</span> = &lt;&amp;lcd_rgb565_ld_pins&gt;;
pinctrl-<span class="hl-number">1</span> = &lt;&amp;lcd_rgb565_ld_sleep_pins&gt;;
status = <span class="hl-string">"okay"</span>;
......
};</code></pre></li>
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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="#bringup_rgbDisplayConfig__section_pwf_vzb_d1c" data-tocid="bringup_rgbDisplayConfig__section_pwf_vzb_d1c">配置 Uboot </a></div></li><li class="section-item"><div class="section-title"><a href="#bringup_rgbDisplayConfig__section_rwf_vzb_d1c" data-tocid="bringup_rgbDisplayConfig__section_rwf_vzb_d1c">配置 Kernel </a></div></li><li class="section-item"><div class="section-title"><a href="#bringup_rgbDisplayConfig__section_twf_vzb_d1c" data-tocid="bringup_rgbDisplayConfig__section_twf_vzb_d1c">uboot
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