The instructions on this page have been tested on Ubuntu 14.04 (64 bit) in a VMWare virtual machine.

The meta-tq layer extends the Yocto Project's reference system Poky to provide support for a selection of TQ Embedded CPU Modules, including the TQMa6x.

It uses the same codebase as the PTXdist based TQ Linux BSPs and therefore provides the same versions of U-Boot and Linux kernel, but doesn't define a specific root filesystem configuration.

The instructions on this page refer to the BSP and ancillary tools listed in the following table:

BSP Revision1) 0115
meta-tq release warrior.TQMa6x.BSP.SW.0115
Yocto Project / Poky Release 2.7.2 - Warrior
Target machine2) tqma6q-mba6x
U-Boot 2017.11
Linux Kernel 4.14.78

It's strongly recommended to use git for downloading both the Yocto Project / Poky Release as well as meta-tq (instead of downloading archives and extracting them).

The goal of these wiki pages is to get you started using meta-tq with the STKa6x, so instead of reinventing the wheel we will adhere to the very compact Yocto Project Quick Start and supply details specific to the STKa6x where necessary.

For further details regarding Yocto Project 2.7.2 - Warrior please refer to its official documentation.

Yocto Project / Poky requires a Linux build host, so first of all you need a development workstation (or a virtual machine3)) with a (preferably) recent Linux distribution installed.

Please refer to section The Linux Distribution of the Yocto Project Quick Start for supported linux distributions and section The Build Host Packages for required build host packages for those distributions.

Although not required by Yocto Project / Poky, we also recommend to configure and run a tftp server (for image download / update) and an nfs server (for network mounted root filesystem) on your development host.

The Yocto Project Quick Start document explains how to set up Yocto Project / Poky and how to build images using the meta-intel layer. Using this as a guideline, the following table describes how to use the meta-tq layer for the STKa6x.

Section Remarks / Instructions for meta-tq & STKa6x
Welcome! Introduction and basic information about the Yocto Project
Introducing the Yocto Project Development Environment
Setting Up to use the Yocto Project Description of basic requirements for using the Yocto Project (also cf. Prerequisites above)
Yocto Project Release Instructions on how to install a release of the Yocto Project on the Build Host

$ git checkout warrior

will not work unless you change into the poky directory (i.e. the freshly cloned Poky repository).

Alternatively you can clone the Poky repository and checkout branch warrior in one step by executing

$ git clone -b warrior git://
Building Images

This section provides step-by-step instructions for

  1. Building An Image for Emulation4)
  2. Building An Image for Hardware5)

To sucessfully build an image for hardware you have to carry out steps from both subsections6) as follows.

1. Be Sure Your Build Host is Set Up: See above
2. Check Out Your Branch:

$ git checkout warrior

You can skip this step if you checked out branch warrior already when/after cloning the poky repository.
3. Initialize the Build Environment:

$ source oe-init-build-env

The above is absolutely required, otherwise the subsequent steps will not work!
5. - 7. You can skip these steps, they are not required for using meta-tq.

1. Create a Local Copy of meta-tq

$ cd $HOME/poky
$ git clone -b warrior

2. Configure the Build7):

$ cd $HOME/poky/build
$ bitbake-layers add-layer "../meta-tq"
$ echo 'MACHINE = "tqma6q-mba6x"' >> conf/local.conf

3. Build an Image for STKa6x:

$ bitbake core-image-minimal

The resulting image is tmp/deploy/images/tqma6q-mba6x8)/core-image-minimal-tqma6q-mba6x9).wic
4. Write the Image10)11)

$ sudo dd if=tmp/deploy/images/tqma6q-mba6x/core-image-minimal-tqma6q-mba6x.wic of=TARGET_DEVICE

5. Boot the STKa6x from SD card (cf. MBa6x DIP switch settings)

refers to the revision of the PTXdist based TQ Linux BSP, which provides the codebase of U-Boot and Linux kernel
i.e. value for MACHINE variable
for testing purposes Yocto Project provides a ready to use virtual machine called Build Appliance
7 steps, explicitly aims at emulation using qemu
5 steps, targets real hardware
subsection headings may be missing in Yocto Project Quick Start (depends on Poky version)
7) , 8) , 9) , 10)
valid machines are
TARGET_DEVICE has to be an SD card