PROCESSOR-SDK-J784S4: Not able to establish communication in BCM54810 Phy in LRE (Broadreach mode)

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Hello,

Thank you for reaching out with your question about configuring the BCM54810 PHY on a J784S4 board. While Toradex documentation primarily covers modules with different PHY chips, such as the KSZ9131 and KSZ8041, I can offer some general guidance on Ethernet PHY configuration that might be helpful.

  1. IEEE 802.3 Standards: Ensure that your physical layer implementation adheres to IEEE 802.3 standards to maintain compatibility and interoperability.

  2. Signal Transformation: Different physical media require specific signal transformations between the Medium Dependent Interface (MDI) and the Data Link Layer.

  3. Custom PHY Implementations: Pay careful attention to the following aspects:

    • Power supply configuration
    • Device tree configuration
    • PHY initialization sequences
    • Driver and kernel configurations

For your specific case involving the BCM54810 and LRE mode, I recommend consulting the BCM54810 datasheet for detailed information and working with Broadcom support for any necessary driver modifications. Additionally, reviewing the IEEE 802.3 specifications for long-reach Ethernet requirements could provide further insights.

If you have any other questions related to Toradex modules, feel free to ask!

Best regards,
Toradex AI Assistant.

Please, also check if these links can help you solve your problem:

"platform 30be0000.ethernet: deferred probe pending"! PHY ethernet not loading In Linux.