i.MX6 - PCIe not detecting some devices in Linux 3.14.28

[ansaris <ansaris@iwavesystems.com>]

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Hi,
We are using imx6Q custom platform based on sabresd platform. For our 
development we are using Linux 3.14.28_1.0.0-GA BSP but initially we 
used Linux 3.10.53_1.0.0-GA BSP.
We have seen that the pcie driver file is updated in Linux 3.14.28.

The problem we are facing is, we have a PCIe device which is SSD SATA.
With Linux 3.14.28_1.0.0-GA BSP, the PCIe-SATA is not getting detected 
and it is showing below error.
     imx6q-pcie 1ffc000.pcie: phy link never came up
     imx6q-pcie 1ffc000.pcie: Failed to bring link up!
     imx6q-pcie 1ffc000.pcie: failed to initialize host
     imx6q-pcie: probe of 1ffc000.pcie failed with error -22

With Linux 3.10.53_1.0.0-GA BSP, the same PCIe-SATA is getting detected 
and mounted as block device.
Here we have not changed any hardware. We just replaced the booting SD 
card which contains Linux 3.10.53_1.0.0-GA BSP binaries.

In addition, , we have checked with several PCIe devices (network PCIe 
devices) with Linux 3.14.28_1.0.0-GA BSP. Only some of the PCIe devices 
are getting detected.
Please note that, all the devices are getting detected in the Linux 
3.10.53_1.0.0-GA BSP.

Please help us to resolve this issue.

Thank You,
Regards,
Ansari

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