https://www.mediawiki.compulab.com/w/index.php?action=history&feed=atom&title=MCM-iMX95_Yocto_Linux%3A_Device_trees 2026-04-15T03:31:49Z Revision history for this page on the wiki MediaWiki 1.31.0 https://www.mediawiki.compulab.com/w/index.php?title=MCM-iMX95_Yocto_Linux:_Device_trees&diff=5708&oldid=prev 2026-01-07T14:50:22Z

<p>Created page with &quot;== Available Device Trees == The current release includes the following &#039;&#039;&#039;dtb&#039;&#039;&#039; files: &#039;&#039;&#039;Deafualt Device tree:&#039;&#039;&#039; &#039;&#039;&#039;mcm-imx95-evk.dtb&#039;&#039;&#039; [https://github.com/compulab-yok...&quot;</p> <p><b>New page</b></p><div>== Available Device Trees ==<br /> The current release includes the following '''dtb''' files:<br /> <br /> '''Deafualt Device tree:''' '''mcm-imx95-evk.dtb''' [https://github.com/compulab-yokneam/linux-compulab/blob/linux-compulab_v6.6.52/arch/arm64/boot/dts/compulab/mcm-imx95-evk.dts] &lt;br&gt;<br /> <br /> ==Set a device tree==<br /> The current release provides two methods to switch between dtb files:<br /> * U-Boot environment<br /> The U-boot '''fdtfile''' variable contains the device tree and device tree overlay name that will be loaded into the RAM. <br /> <br /> The U-boot '''fdtofile''' variable contains the device tree overlay name that will be loaded into the RAM in addition to main device tree. <br /> <br /> This variable can be changed by:<br /> {| class=&quot;wikitable&quot; style=&quot;text-align:left;&quot;<br /> |-<br /> | align=&quot;&quot; | '''Environment''' <br /> | align=&quot;&quot; | '''Command''' <br /> |-<br /> | align=&quot;&quot; |U-Boot<br /> | align=&quot;&quot; |setenv fdtfile &lt;fdt_file_name&gt;; saveenv;<br /> |-<br /> | align=&quot;&quot; |Linux<br /> | align=&quot;&quot; |fw_setenv fdtfile &lt;fdt_file_name&gt;<br /> fw_setenv fdtofile 'fdto_file_name_1 fdto_file_name_2 fdto_file_name_3'<br /> |-<br /> |}<br /> * GRUB environment (if the image was created with the meta-compulab-uefi layer)<br /> {| class=&quot;wikitable&quot; style=&quot;text-align:left;&quot;<br /> |-<br /> | align=&quot;&quot; | '''Environment''' <br /> | align=&quot;&quot; | '''Command/Procedure''' <br /> |-<br /> | align=&quot;&quot; |GRUB Boot Menu<br /> | align=&quot;&quot; |Goto &quot;Advanced Boot Options&quot; and choose a device tree from the provided dtb list.<br /> |-<br /> | align=&quot;&quot; |Linux<br /> | align=&quot;&quot; |grub-editenv /boot/EFI/BOOT/grubenv set fdt_file=&lt;fdt_file_name&gt;<br /> |-<br /> |}<br /> <br /> [[Category:Linux]]<br /> [[Category:Yocto]]<br /> [[Category:MCM-iMX95]]</div>

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