PCIe Training Issue

roberttaylor — Wed, 21 May 2014 23:26:12 GMT

We are having an intermittent issue on 2 of our 9 PCBAs in that the PCIe link between the i.MX6DL and a DSP fails training resulting in the link down.

The DSP seems to do its PCIe initialization and waits forever on the training.

On the iMX, we have tried to restart training after it fails but to no avail. However if we power down and back up the PCIe controller and then restart training, it finds the DSP on the first try every single time, in one iteration, of what was previously a stuck failure case.

Does anyone have any advice on this or aware of any known issues?

Re: PCIe Training Issue

Wlodek_D_ — Mon, 26 May 2014 08:11:23 GMT

Hello,

Thank you for your post, however please consider moving it to the right community place (e.g. i.MX Community ) to get it visible for active members.

For details please see general advice Where to post a Discussion? (https://community.freescale.com/docs/DOC-99909 )

Thank you for using Freescale Community.

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PCIe Training Issue

Re: PCIe Training Issue