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TDA4VM: MCU2_0 CPSW9G sgmii connect with PHY(Marvell 88ea1512)

jacky zeng
Prodigy 75 points
Part Number: TDA4VM

hello TI:

    I use cpsw9g sgmii to connect with PHY(Marvell 88ea1512).

    cpsw9g use SGMII2_TX0 and SGMII2_RX0 pins connect to PHY.  I can configure PHY with mdio, the PHY configure sgmii to copper mode. It  looks like work well.

    And then I configure serdes0 and cpsw9g SGMII port 2,  if do CSL_SGMII_enableAutoNegotiation, the  CSL_SGMII_getStatus return sgmii is link up, but phy is not link up.

     Is this status right?  Why?  

     My sgmii configure code as below:

  • 0
    TI__Mastermind 37435 points

    Hi Jacky,

    1. Can you tell me which SDK version are you using ? Are you running Linux as well ? Please note that on TDA4, there is a conflict for Serdes between Linux and Ethernet Firmware which is why SGMII is not enabled out of the box.

    2. Please provide your Ethernet Firmware output and changes that you have done in the form of a GIT friendly diff. Please exclude pinmux changes as it's not easy to review them. You must ensure that you are manually checking the Pinmux registers after complete bootup if you are running into any issues.

    3. Since you are using a Marvell PHY, have you made sure that you have integrated a driver for the same from them ?

    Regards

    Vineet

  • 0
    Prodigy 86 points

    Hi,zeng

     we are using the same phy in our custom board, and also met the same problem, have you intergrated the 88e1512 phy driver ? Would you please give me a patch about the 88e1512 phy driver? Thanks a lot !

  • 0 in reply to fang yang
    TI__Mastermind 37435 points

    Hi Fang,

    Sorry for the delay.

    Can you provide a reply to my questions above ?

    fang yang said:
    have you intergrated the 88e1512 phy driver ? Would you please give me a patch about the 88e1512 phy driver?

    We do not integrate or support 3P PHY's, you will have to talk to Marvell to get a compatible PHY driver and integrate it with ENET-LLD. Take a look at this integration guide for help

    Regards

    Vineet