How to configure P3041DS for x4 lane SerDes operation?

[pete1]

What I want:
to configure P3041DS for x4 lane SerDes operation on PCIe slot 7.

What have I tried:
* set SW2.1=1, SW2.2=1

Result:
only getting x2 connection on slot 7

Question:
1. Do I need to make BSP changes?
2. How to do it? Please provide detailed procedure.

3. Any other changes?

Thanks.

[timurtabi]

What SerDes protocol are you using?

[pete1]

Not sure what you mean by protocol.  We have a PCIe card in slot 7.

[timurtabi]

Well, that's the problem.  You can't configure any PCI without an understanding of SerDes protocols.  You can find information about them in the P3041 SOC reference manual, and you can find information on SerDes lane muxing in the P3041DS board manual.