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Altera_Forum
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13 years ago

Interfacing Cyclone IV FPGA with Marvell PHY 88E1111 using SGMII

Hi I am using the cyclone IV with SGMII interfaced with Marvell PHY 88E1111. So what are the registers to be configured in the phy and how can I configure it for SGMII.

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  • Altera_Forum's avatar
    Altera_Forum
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    13 years ago

    If you have a look at the Altera driver, there is a marvell_cfg_sgmii that does that in the file altera\**.*\ip\altera\triple_speed_ethernet\lib\sopc_builder\altera_triple_speed_ethernet\HAL\src\altera_avalon_tse.c

    I have no idea how you are supposed to use this function if you are using the driver though. Are you using a development kit? Aren't there any example designs with Ethernet?
  • Altera_Forum's avatar
    Altera_Forum
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    13 years ago

    Hi i am using our own custom board so how can i configure the fresh marvell ic 88E1111 but i am stuck in configuring through mac. i dont know which are the registers to be configured for sgmii interface in 88E1111 through MDIO and is there any idea to configure the phy.

  • Altera_Forum's avatar
    Altera_Forum
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    13 years ago

    If you have a look at the marvell_cfg_sgmii() I talked about you should see what the driver does to configure the marvel chip into SGMII mode.

    As it is a custom board you probably have the 88E1111 datasheet too, you should find a list of the PHY MDIO registers there with indications on how to set it up in SGMII mode.