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DRA821U: Ethernet Setup from u-boot and Linux

Jack
Mastermind 9075 points
Part Number: DRA821U
Other Parts Discussed in Thread: DRA821

Hi TI

There's a question that Customer wants to clarify about Ethernet.

Please let us know the appropriate procedure to setup Ethernet on u-boot and Linux. 

There's no updated information from SDK document for DRA821 below.

https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-j7200/07_03_00_04/exports/docs/j7200/linux/Foundational_Components/U-Boot/UG-Network.html

Thanks.

Regards, 

Jack

  • 0
    TI__Mastermind 37435 points

    Hi Jack,

    I am sorry, what's the question exactly ?

    There are two ethernet switches on DRA821, CPSW 2G and CPSW 5G. CPSW 2G is supported on Uboot, 5G is not.

    Once you boot Linux, it will load the Ethernet Firmware on R5F 2_0 via remoteproc and that will enable CPSW 5G, you will see the 2G interface as eth0 and 5G interface as eth1.

    You can check it out using an EVM and Linux SDK

    Regards

    Vineet

  • 0 in reply to Vineet Roy
    Mastermind 9075 points

    Hi Vineet

    We want to enable the following port in red quadrangle. Is that 5G?

    If yes, Custom board has only CPSW 5G, Not 2G.

    Is it technically possible to activate CPSW 5G in u-boot before Linux boot up. 

    CPSW 5G need to be enabled to support tftp boot since custom board will not have SD and USB ports for production assembling.

    Thanks.

    Regards, 

    Jack

  • +1 in reply to Jack
    TI__Mastermind 37435 points

    Hi Jack,

    Jack said:
    We want to enable the following port in red quadrangle. Is that 5G?

    Yes, it's 5G (QSGMII ports)

    Jack said:
    Is it technically possible to activate CPSW 5G in u-boot before Linux boot up. 

    No, CPSW 5G cannot be enabled in Uboot. Theoretically it's possible but it's a lot of effort on SW port and we have no plans to enable it.

    Regards

    Vineet

  • 0 in reply to Vineet Roy
    Mastermind 9075 points

    Hi

    The ticket is dup with the link below.

    e2e.ti.com/.../3771448

  • 0 in reply to Jack
    Mastermind 9075 points

    Hi Vineet

    Customer checked CPSW5G patch works find on EVM. However Custom board does not contain CPSW2G due to lack of space. 

    Hence CPSW5G is only available from them. They need to activate CPSW5G in u-boot to support tftp.

    Could you please let us know how to integrate the feature into u-boot for CPSW5G? 

    Customer would like to get support from TI on this for production purpose.

    Hope to include support plan for CPSW5G in u-boot.