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meta-connecttech

Overview

Repository for ConnectTech BSP for Tegra carriers.

This layer depends on meta-tegra layer and meta-boot2qt for the distro.

I tested with meta-tegra rocko-l4t-r28.2 commit 4aea5e3785dc400e31981467f475b54e652dbd67 with Astro carrier.

Adding other machines for other carrier boards

I recommand you to install NVIdia's jetpack, 3.2 for rocko-l4t-r28.2, and install ConnectTech BSP on top of it.

Flash your device with Jetpack ubuntu distro and check the HW works well, then you are sure you have selected the correct configuration.

Create a new machine in conf/machine and take an existing one as template. In that file update the following keys:

  • KERNEL_DEVICETREE
  • ODMDATA
  • UBOOT_MACHINE

Example: astro-revG+.conf has

  • DTB_FILE=tegra186-tx2-cti-ASG001-revG+.dtb
  • ODMDATA=0x6090000
  • SYSBOOTFILE=p2771-0000/extlinux.conf;

So the machine file looks like

  • KERNEL_DEVICETREE ?= "ddot/ddot/ddot/ddot/nvidia/platform/t18x/quill/kernel-dts/tegra186-tx2-cti-ASG001-revG+.dtb"
  • ODMDATA ?= "0x6090000"
  • UBOOT_MACHINE = "p2771-0000-500_defconfig"

Finally the distro requires conf file matching the machine name. In conf/distro/include. Take an existing one and rename it. ex: astro-tx2.conf

Qt specifics

The distro is based on meta-boot2qt. On the meta-boot2qt directory create 2 symlinks per machine as:

cd ./meta-boot2qt/recipes-qt/boot2qt-addons/boot2qt-appcontroller
ln -n jetson-tx2 astro-tx2 
cd ./meta-boot2qt-distro/recipes-qt/qt5/qtbase
ln -s jetson-tx2 astro-tx2
cd ./meta-boot2qt/recipes-qt/boot2qt-addons/boot2qt-appcontroller
ln -s jetson-tx2 elroy-tx2
cd ./meta-boot2qt-distro/recipes-qt/qt5/qtbase
ln -s jetson-tx2 elroy-tx2

If you use repotool, you can declare the symlinks with linkfile tags without push the changes upstream.