P2020 and 88E6046 communication with RGMII interface

[wyt_uestc]

Hi Dear：

    I use P2020 tsec1 RGMII port  to connect Marvell's 88E6046 switch .The 88E6046's PHY port connect to PC.The P2020 can receive data from PC,but the PC can not receive data when P2020 send data.I have tested the RGMII signal ,and not find abnormal.

[ufedor]

Please check:

1) quality of the EC _GTX_CLK125 referring the P2020 QorIQ Integrated Processor Hardware Specifications, 2.4.4 eTSEC Gigabit Reference Clock Timing.

2) the PHY documentation and its registers to ensure that internal delay for the RXC is enabled.