en:layerscape:tqmls102xa:linux:yocto:quickstart

Preface

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 TQMLS102xA.

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.

Because of the dependencies to the other yocto layers we recommend to use ci-meta-tq which already provides all required yocto layers as git submodules instead of meta-tq to build this BSP release.

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

BSP Revision	0115
meta-tq release all releases	zeus.TQMLS102xA.BSP.SW.0115
Yocto Project / Poky Release	3.0.3 - Zeus `git clone -b zeus git://git.yoctoproject.org/poky.git` poky-warrior-21.0.1.tar.bz2
Target machine¹⁾	tqmls102xa-mbls102xa
U-Boot	v2017.11
Linux Kernel	5.4.23\ 5.4.23 + rt23

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

The goal of these wiki pages is to get you started using ci-meta-tq with the STKLS102xA, so instead of reinventing the wheel we will adhere to the very compact Yocto Project Quick Start and supply details specific to the STKLS102xA where necessary.

For further details regarding Yocto Project 3.0.3 - Zeus please refer to its official documentation.

Prerequisites

Build Host

Yocto Project / Poky requires a Linux build host, so first of all you need a development workstation (or a virtual machine²⁾) with a Linux distribution installed.

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

The instructions on this page have been tested on Ubuntu 18.04 (64 bit) in a VMWare virtual machine.

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.

Yocto Build instructions

BSP build instructions

Please setup the build host as described in the Prerequisites section above .

1. Create a local copy of meta-tq

$ git clone --recurse-submodules https://github.com/tq-systems/ci-meta-tq.git

2. Checkout BSP release on new local branch.

$ cd ci-meta-tq
$ git checkout zeus.TQMLS102xA.BSP.SW.0115 -b zeus-tqmls102xa

3. Update git submodules:

$ git submodule update --init
$ git submodule sync

4. Setup local branch to track the remote branch.

git branch -u origin/zeus

5. Configure the Build³⁾:

$ source setup-environment tqmls102xa_build ls
$ echo 'MACHINE = "tqmls102xa-mbls102xa"' >> conf/local.conf

6. Build an Image for STKLS102xA:

$ bitbake tq-image-generic

The resulting image is tmp/deploy/images/tqmls102xa-mbls102xa⁴⁾/tq-image-generic-tqmls102xa-mbls102xa⁵⁾.wic
7. Write the Image⁶⁾⁷⁾

$ sudo dd if=tmp/deploy/images/tqmls102xa-mbls102xa/tq-image-generic-tqmls102xa-mbls102xa.wic of=TARGET_DEVICE

8. Boot the STKLS102xA from SD card (cf. MBLS102xA DIP switch settings) |

¹⁾

i.e. value for MACHINE variable

²⁾

for testing purposes Yocto Project provides a ready to use virtual machine called Build Appliance

³⁾ , ⁴⁾ , ⁵⁾ , ⁶⁾

valid machines are
tqmls102xa-mbls102xa

⁷⁾