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DP83867IR: dp83867ir cannot link up

Jeff Wang100039
Intellectual 1740 points
Part Number: DP83867IR

Tool/software:

Hi,

customer use dp83867ir work with tda4, RGMII interface, we can get GTX_clk= 125Mhz, RX_CLK=125Mhz.

ping with compute cannot success, following is register value:

register value
0x00 0x1140
0x01 0x796d
0x02 0x2000
0x03 0xa231
0x04 0x05e1
0x05 0xcde1
0x06 0x006f
0x07 0x2001
0x08 0x5006
0x09 0x0200
0x0a 0x3800
0x0b 0
0x0c 0
0x0d 0x401f
0x0e 0x0c1f
0x0f 0x3000
0x10 0x5048
0x11 0xae02
0x12 0
0x13 0x1c42
0x14 0x26c7
0x15 0
0x16 0
0x17 0x0040
0x18 0x6150
0x19 0x4444
0x1a 0x0002
0x1b 0
0x1c 0
0x1d 0
0x1e 0x0202

could you help give suggestion?

best regards,

jeff wang

  • +1
    TI__Mastermind 19755 points

    Hi Jeff,

    Based on the register log, it seems like customer is able to perform a link up and did not see any RX_ER. The MDI side looks good to me.

    Here are some more information for further debug:

    • May I ask for customer's block diagram in the system? What MAC interface is customer want to perform and what is the connection on the MAC interface?
    • If possible, could customer enable MII loopback on the PHY side and try to perform a test by sending and receiving packets on the MAC side?

    --

    Regards,

    Hillman Lin