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DP83867E: DP83867 intermittent Issue on dropping pings

Part Number: DP83867E

Hi All,

We have the DP83867ERGZT in RGMII mode to the MAC.

We are having intermittent issues in loosing packets/pings from link partner to the MAC.

The link partner sends it out (wire shark sees it) but MAC never receives it in uboot or linux

We probed the TXclk & Rx clock @125Mhz.

TX0,1,2,3 toggle.

RXD,1,,2,3 toggle.

Far end loop back-works consistent 

Analog Loop back works consistent

When we do pings of 32 bytes size or more we see packets not reaching the MAC.

RXD0 resembles clock

Link Speed 1gbps

Power sequence /power supply- we are confident but ye to check.

Questions:

1. Is it okay RXD0 to resemble clock?

2. do you know if we have a MII decoder in the market?

3. is there an errata sheet for this phy?

BR,

Bala