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[FAQ] TDA4VM: How to address the gPTP Sync failure post reset recovery of CPSW in Ethenret Firmware?

Doredla Sudheer Kumar
Guru 64580 points
Part Number: TDA4VM

Tool/software:

After a CPSW reset recovery from ETHFW, gPTP fails to re-establish synchronization, impacting time-sensitive applications.

  • +1
    TI__Guru 64580 points

    Issue:
    gPTP Sync fails post reset recovery of ETHFW. This issue was observed in TI SDK 11.0

    Reason:
    On reset recovery, ETHFW closes the gPTP task and restarts it. On closing the gPTP task, the gPTP configuration that was set by the config DB was deleted.
    While restarting the gPTP stack, as there is no DB configuration, gPTP start will fail, resulting in sync not happening post reset recovery.

    Fix:
    Initializing DB configuration during the restart of gPTP.

    Please find the patch to fix this issue.
    https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/791/gPTP_5F00_sync_5F00_post_5F00_reset_5F00_recovery_5F00_cpsw_5F00_SDK11.0.patch

    Best Regards,
    Sudheer