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i.MX 6DQ Plus simultaneously use PCIe and ENET

Question asked by Toshishisa Sugiyama on Jun 14, 2017
Latest reply on Jun 20, 2017 by Toshishisa Sugiyama

Hi,

 

I'd like to confirm how to configure PCIe and ENET when both use simuletaneously for i.MX6DQ Plus.

Does it still need external 100MHz clock for PCIe and external 125MHz clcok for RGMII when using both simultaneously?

I refer to the below thread. It is for i.MX6DQ.

https://community.nxp.com/message/535599

 

However, I found the description below in i.MX 6DQ schematics.

Note: ENET_REF_CLK
On the DQP processors this onnection is now
optional, the internal Ethernet PLL can be used
to provide the ENET clock reference

 

If both need external clock, does BSP implement patches for this use case?

 

Best Regards,

Sugiyama

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