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Device Trees on Toradex System on Modules

Introduction​

This article aims to provide an in-depth understanding of device trees used in Toradex System on Modules (SoMs), focusing on their hierarchical structure and the three levels of inclusion: SoC level, module level, and carrier board level.

Device Tree for Toradex Modules​

The diagrams in this section represent the device tree and related structures of every Toradex module. All of those are divided into three levels of inclusion:

  1. SoC Level: Device tree includes that describes the SoC, cores, reserved memory and SoC peripherals.
  2. Module Level: Device tree includes that describe specific configurations at the SoM's level, such as some pinmuxing, GPIOs, peripherals, external memory and WiFi.
  3. Carrier Board Level: Device trees and related includes that describe carrier board specific configurations or peripherals.

The referenced files in the diagrams can be found either in the repository for upstream-based Kernel or in the repository for downstream-based Kernel inside the branches described in Kernel Version Information.

i.MX 6 Based Modules​

The modules Colibri iMX6S/iMX6DL share the same device tree binary, so do the modules Apalis iMX6D/iMX6Q. Click on the box to see the current version of the respective device tree file.



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