View source for BELK-TN-006: Using PetaLinux to Build BELK/BXELK Software Components

===Device tree handling===
One of the most appreciated features of PetaLinux is the automatic generation of the Linux Device Tree including the nodes associated with the IPs instantiated in the PL. When used in combination with the Device Tree provided by the BELK/BXELK, this generation process works as depicted in the following image.


[[File:BELK-PetaLinux-DTB.png|thumb|center|600px|Combined Device Tree generation process]]


In essence, PetaLinux combines the original Bora/BoraX device tree (<code>bora.dts</code>) with another auxiliary device tree generated on the base of hardware description file (.hdf). The resulting DTB (<code>system.dtb</code>) provides all the nodes required by the system to operate properly.

It is worth remembering that the user can add further customizations to the resulting DTB by editing this file <code><plnx-projroot>/project-spec/meta-user/recipes-bsp/device-tree/files/system-user.dtsi</code>. For more details, please refer to the ''Xilinx UG1144 PetaLinux Tools Documentation - Reference Guide''.