Forum Discussion

hsk00's avatar
hsk00
Icon for New Contributor rankNew Contributor
1 year ago

Ethernet PHY Attachment Issue on Cyclone V SoC Board

Dear Sir,Madam, I am reaching out to report an issue encountered on our custom Cyclone V SoC-based board. We are currently facing a problem with the Ethernet interface, specifically with the e...
Fpga Devkit
Jeet14's avatar
Jeet14
Icon for Frequent Contributor rankFrequent Contributor
1 year ago

Hi,


I mean what you have set the parameters in the socfpga_cyclone5_socdk.dts.

Is the skew values are entered based on your hardware?

Also, what all MDIO settings are entered in the socfpga_cyclone5_socdk.dts.


Regards

Tiwari


hsk00's avatar
hsk00
Icon for New Contributor rankNew Contributor
1 year ago

Hi,

We have used two KSZ9021RNI PHYs on our custom Cyclone V SoC-based board. One of the PHYs is working fine with hardware-specific skew values configured in the device tree.

However, there are no MDIO-related configurations present in either our custom device tree or the provided socfpga_cyclone5_socdk.dts.

If MDIO-specific configurations are required for proper operation, could you kindly suggest the necessary changes or provide guidance on how to proceed?

Best regards,
Nitin Dogra