Linux/AM5728: KSZ9031 issue with PRU Ethernet

Tool/software: Linux

Hi,

We have designed the custom board for four Ethernet requirements. Two dedicated RGMII ethernet ports for 1Gbps have been used and other two through PRU have been used to cater our requirements.

In our design we have used same PHY KSZ9031 for all the four ethernets.

Now, when we power ON only two RGMII ethernets have been accessed for communication, other two PRU ethernets are detected but there is no communication.

please clarify  whether PHY KSZ9031 is compatible for PRU ethernet or not, and suggest what should be done or which PHY is suitable for working with PRU ethernet.

BR

satya