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TDA4VH-Q1: 10G connection between TDA4VH boards (CPSW9G)

Marko Milosevic
Intellectual 412 points
Part Number: TDA4VH-Q1
Other Parts Discussed in Thread: TDA4VH

Dear TI,

We have a couple of questions about connecting the TDA4VH boards with 10G (We are using Linux Native Driver SDK 8.06).

1. Can both 10G ports (port 1 and port 2) of the TDA4VH EVAL board simultaneously work with the Linux Native Driver?


2. We received from you Ethernet Expansion Bridge connector. 
    2a) Can these two boards work simultaneously by connecting one board to ENET-EXP-1 and the second board to ENET-EXP-2?
    2b) Can these board (Ethernet Expansion Bridge) work simultaneously with the Quad-Port Eth Expansion Board by connecting one board to ENET-EXP-1 and the second board to ENET-EXP-2?
    2c) Are there any connectors for 10G on ENET-EXP-1 that will still give us access to the other available ports on connector ENET-EXP-1? 

Best Regards,

Marko.

  • +1
    TI__Mastermind 38470 points

    Hi Marko,

    There are device tree overlays in SDK which enable either one or both the connectors for USXGMII. The following are the concerned overlays.

    • [PSDK-linux-Install-Dir]/board-support/linux-[commit-hash]/arch/arm64/boot/dts/ti/k3-j784s4-exp1-exp2-usxgmii.dts
    • [PSDK-linux-Install-Dir]/board-support/linux-[commit-hash]/arch/arm64/boot/dts/ti/k3-j784s4-exp1-usxgmii.dts
    • [PSDK-linux-Install-Dir]/board-support/linux-[commit-hash]/arch/arm64/boot/dts/ti/k3-j784s4-exp2-usxgmii.dts

    I believe this answers 1 and 2a

    Marko Milosevic said:
    2b) Can these board (Ethernet Expansion Bridge) work simultaneously with the Quad-Port Eth Expansion Board by connecting one board to ENET-EXP-1 and the second board to ENET-EXP-2?

    I believe that you are saying to connect the bridge to one expander and QPENET card to another. This should also be possible.

    Marko Milosevic said:
    2c) Are there any connectors for 10G on ENET-EXP-1 that will still give us access to the other available ports on connector ENET-EXP-1? 

    If you are asking if you can can connect to multiple CPSW ports while having a 10G link on one of the expander header, then the answer to that is no. One ethernet expander header is connected to only one serdes lane. So, you can have only one serdes lane coming out of any ethernet expander header. Two in total on board as there are two ethernet expander headers on the board. The QSGMII link on QPENET card has 4 ports connected over same serdes lane (special feature of QSGMII protocol). Hence on one ethernet expander, you can have:

    • 10G USXGMII/XFI link with 1port x1
    • 5G USXGMII link with 1 port x1
    • 5G QSGMII link with 4 ports x1
    • 2.5G XAUI/SGMII link with 1 port x1
    • 1G SGMII link with 1 port x1

    Hope this clarifies things.

    Regards,
    Tanmay

     

  • 0 in reply to Tanmay Patil
    Intellectual 412 points

    Hi Tanmay,

    thank you for the detailed answers.

    Regards,

    Marko.