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PCIe switch detection problem in I.MX6Q

Question asked by Arulpandiyan Vadivel on Oct 30, 2014
Latest reply on Nov 5, 2014 by Arulpandiyan Vadivel

Hi,
  We are currrently using seco Q-7 processor module based on iMX6q. In our carrier card pericom pci switch PI7C9X2G404SL.


1.PCie Root is I.mX6q PROCESSOR
2.PCIe switch pericom (PI7C9X2G404SL).
3. Our linux version is 3.0.35

ad we have found the following observation during testing,

1.Intially PCIe not detecting (PCIe link down), due to reset asserted before clock getting stable,we have managed to give manual reset.
2.Now the PCIe root is up we can able to read I.MX6 PCIe device ID using lspci command.
3.But we are not able to detect the PCIe switch.

Canyou please help us to solve the issue.

Note:
  If you have any patch for detecting PCIe switch, please provide us.


Regards,
Bala

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