How can I expand an apalis TK1 PCI express from x1 to x2?

Technical Support
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1

Hi,

As the title says, I don’t know how to expand the Apalis TK1 PCI express from 1 lane to 2 lane.

I am using the Apalis TK1 with a Zynq 7015 and want to realise a communication between these two models with the PCI express.
I tried to look at the board-apalis_tk1-pinmux.c but don’t find the PCI express pins.

Best regards,

2

Can you share a schematic of your carrier board?

3

link text

Here is may schematic and the connection between Zynq and Apalis
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4

Did you look at my answer as given here?

5

Yes I saw and studied it.
I know that it is possible, but now I try to figure out how to enable the second lane.
How to configurate it that I can use it with my connection.

Thanks for your fast answer.

6

You can try running mainline kernel, it should support PCIe x2, but as mentioned earlier it was never tested/investigated due to lack of hw.