ADSP OS Loading Timeout on Nvidia Jetson Orin Nano Dev Board

Issue Overview

Users of the Nvidia Jetson Orin Nano Dev Board are experiencing an issue related to the ADSP (Audio Digital Signal Processor) OS during boot. The specific symptoms include:

• Error Messages: Users report seeing the following errors in the boot logs:
  • ADSP OS loading timed out
  • Unable to start ADSP OS
  • adsp failed to boot with ret = -62
• Context of Occurrence: The issue arises during the boot process, particularly when UEFI secure boot and disk encryption are enabled. Users have noted that they do not intend to use any display connections, which may be relevant to the problem.
• Hardware/Software Specifications: The problem has been reported on the Orin Nano Dev Kit, and users have mentioned using a custom board in some responses.
• Frequency: The issue occurs consistently on every boot.
• Impact: This problem can hinder the overall functionality of the device, potentially affecting applications that rely on audio processing or other functionalities tied to the ADSP.

Possible Causes

Several potential causes for this issue have been identified:

• Hardware Incompatibilities or Defects: If the hardware components are not compatible or defective, it may prevent the ADSP from initializing correctly.

• Software Bugs or Conflicts: Bugs in the firmware or conflicts with other software components can lead to failures in loading the ADSP OS.

• Configuration Errors: Incorrect settings in UEFI secure boot or disk encryption configurations could interfere with ADSP initialization.

• Driver Issues: Outdated or incompatible drivers may cause failures in starting the ADSP OS.

• Environmental Factors: Factors such as inadequate power supply or overheating could affect system performance and lead to this issue.

• User Errors or Misconfigurations: Incorrectly set parameters during setup might result in failure to boot the ADSP OS.

Troubleshooting Steps, Solutions & Fixes

To address the issue of ADSP OS loading timeout on the Nvidia Jetson Orin Nano, follow these troubleshooting steps:

1. Check Hardware Configuration:

   • Ensure that all hardware components are properly connected and compatible with the Orin Nano Dev Kit.
   • If using a custom board, verify that it adheres to Nvidia’s specifications.

2. Review Boot Logs:

   • Gather full serial console logs for analysis. This can provide insights into what might be causing the failure.
   • Use commands like dmesg to review kernel messages that may relate to ADSP initialization issues.

3. Disable ADSP Driver:

   • If you do not require audio processing, consider disabling the ADSP driver. This can be done by modifying device tree settings or applying a patch.
   • A suggested patch is available for download (e.g., 0001-t23x-p3768-Disable-adsp-audio-driver.zip). Apply this patch and check if it resolves the issue.

4. Update Firmware and Drivers:

   • Ensure that you are using the latest firmware and drivers for your Orin Nano. Check Nvidia’s official website for updates.
   • Use commands like:

     sudo apt update
     sudo apt upgrade
     

5. Test Different Configurations:

   • Experiment with different configurations of UEFI secure boot and disk encryption settings. Temporarily disable these features to see if they affect ADSP initialization.

6. Monitor Environmental Conditions:

   • Ensure that your power supply is adequate and that there is no overheating occurring during operation.

7. Seek Community Support:

   • If issues persist after trying these steps, consider posting detailed logs and configurations on forums dedicated to Nvidia Jetson products for further assistance from community members and experts.

8. Best Practices for Future Prevention:

   • Regularly check for firmware updates.
   • Maintain proper documentation of any changes made to system configurations.
   • Consider creating backups before applying significant updates or patches.

By following these steps, users should be able to diagnose and potentially resolve issues related to ADSP OS loading on their Nvidia Jetson Orin Nano Dev Board.