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AM62A3-Q1: about CPSW Port1 RX Delay Setting

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Prodigy 20 points
Part Number: AM62A3-Q1
Other Parts Discussed in Thread: AM62A7

Tool/software:

Hi TI

I want to use CPSW 1 & CPSW 2 as ethernet communication with AM62A7 and Realteak RTL 9010 PHY chip

and I want to set RX Dealy  2ns 

but as I add below description in DTS file.

It seems that the delay is not valid. Could you tell me how to add a RX Delay time?

The cpsw port1 & port 2 is set as rgmii-rxid

The delay time is set to 2ns

  • 0
    TI__Expert 8105 points

    Hello,

    Please note that the DP83867_RGMIIDCTL_2_00_NS you referenced is a property used by the TI DP83867 Ethernet PHY. Specifically, the Linux driver for the DP83867 PHY references this property to configure a 2ns RX RGMII clock delay. 

    You mention using a Realtek Ethernet PHY chip, so I'm guessing that you are not using the TI DP83867 PHY chip in your design? If so, using the DP83867_RGMIIDCTL_2_00_NS property may not be applicable to your chosen PHY chip. You should check if there is a Linux driver for this Realtek chip you have chosen and see if there is an equivalent DTS property to add an RX delay.

    Please note that we at TI cannot make suggestions for a non TI device (in this case the Realtek PHY chip). 

    -Daolin