KSZ9031 interface with IMX6 Dual Processor

[tejummb]

Hi everyone,

We are using a custom board which has KSZ9031 phy interfaced with iMX6 dual processor.

The 125 MHz from PHY is not connected to ENET_REF_CLK (V22) of processor.

So, we are not able to succeed in the ethernet functionality test using platform SDK as well as u-boot.

Can anyone confirm whether it is possible to use the board the same way, or a board re-spin is required?

Regards,

Teju M M B

[art · Accepted solution]

There is no way to run the RGMII interface without 125MHz reference clock from PHY, connected to the processor's ENET_REF_CLK input. This connection is mandatory. The hardware fix is required.

Have a great day,
Artur

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