Board Support Packages (BSP)

Overview

This repository contains scripts and configuration files for building, configuring, and flashing board support packages (BSP) for multiple platforms:

• GXA (Jetson AGX Orin platforms) - NVIDIA L4T-based BSP
• iMX95 (CompuLab UCM-iMX95) - Yocto-based Ubuntu BSP

Directory Structure

• ./yocto/
  iMX95 Yocto-based BSP for CompuLab UCM-iMX95. See yocto/README.md for details.
• ./config/
  GXA board-specific configuration files, device tree overlays, and bootloader files.
• ./scripts/
  GXA utility scripts for patching, building, packaging, and flashing.
• ./build/
  Output directory for build artifacts and installers.
• ./src The device FTDI tool as-pinctl to control recovery/reboot and debug UART

Supported Platforms

iMX95 (CompuLab UCM-iMX95)

For building Ubuntu-based images for the iMX95 platform:

• See the yocto/README.md for complete documentation
• Quick start: cd yocto && ./build

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GXA (Jetson AGX Orin)

Configuration Files

Store the following GXA-specific configuration files in the ./config directory see config/l4t-overlay/jetson-agx-orin-gxa-1.conf

Any updates to the config file requires re-running the patch step below.

Setup & Patch

To copy board-specific configuration files to their required locations, run:

./scripts/gxa-patch-fs.sh

Building

Before building device tree binaries, build the kernel and out-of-tree modules:

./scripts/gxa-make.sh all

If you modify the device tree overlay file, recompile the DTB:

./scripts/gxa-make.sh dtbs

Other build options:

• Rebuild kernel:

  ./scripts/gxa-make.sh kernel

• Rebuild out-of-tree modules:

  ./scripts/gxa-make.sh modules

Flashing the Board

Connect your development machine to the GXA debug port via USB.
To flash the board, run:

./scripts/gxa-flash.sh

Post-Install Steps

After booting, install the Analog Video Driver:

sudo apt install /opt/tw686x*.deb

This step could be automated in future releases.

Creating the Installer

To package the BSP for deployment, run:

./scripts/gxa-pack.sh

This creates an installer named gxa-installer_<version>.run in the ./build/ directory.

Testing the Installer

Development Process

• Copy the installer to a clean environment (fresh install, Docker container, or dev environment).
• Run the installer to verify dependencies and file structure.

Deployment Process

• Copy the installer to a host machine with internet access, USB connectivity, and sudo privileges.

• Run the installer:

  sudo ./gxa-installer_<version>.run

• During flashing, choose from:

  • Build and Flash (requires USB connection to GXA debug port)
  • Build now, flash later
  • Flash a previously built image
  • Exit

Notes

• The ./config directory contains:
  • Filesystem overlay (DTBs, bootloader files, MOTD, bsp-release)
  • l4t-sources.xml (source details for each L4T build)
  • README (built as part of the installer)