Any known issues with PCIe?
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We have an application where we plan to route the PCIe lanes available on J5 to an Ethernet controller on a custom I/O board. However, I've noticed that PCIe support on other cards (M0062, M0090) seems to be dropped during board development--they look like they're designed with supporting PCIe in mind, but USB alternatives seem to be used instead in the final designs. Will we be fighting an uphill battle here if we try to route PCIe from J5?
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Hi @olearypa
PCIe is a much harder effort for software development, limited by driver support, hence we use USB where we can.
From a HW viewpoint, we have had several plug-in cards work and enumerate with PCIe, so we do not know of any Hardware limitations.
PCIe is also subject to some special GPIO mapping/assignment for some control/sideband signals. So, I HIGHLY encourage you to work with us should you go down this path, as we can help at least make sure your HW is designed correctly giving you the best chance at success.Feel free to tag me whenever you move closer to this effort for HW related items.
Hopefully someone from our SW team can chime in.
It might be worth adding your specific target device so we can at least check if there are built in drivers, or if this is something you will need to develop on your own. Most likely you may need to plan on developing the drivers on your own.Thanks!
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@Vinny It's an Intel I210--should be as vanilla as it gets and well supported by the kernel.
