topic Re: Enable PCI in i.MX Processors

Enable PCI

niklasmolin — Tue, 17 Jan 2017 06:31:02 GMT

I'm trying to use the PCI bus to communicate with a FPGA.

In the device tree I had to disabled the PCI bus during bootup, since it got stuck during bootup because the PCI bus could not link up (EP mode).

The FPGA won't be loaded until the Linux is booted up, how do I enable the PCI "driver" after the kernel is up and running?

Thanks,

Niklas

Re: Enable PCI

igorpadykov — Tue, 17 Jan 2017 07:15:05 GMT

Hi Niklas

please check sect.40.2.2 Kernel Configurations

attached Linux Manual. Note, PCI Express support can't be built as a module.

May be useful links

i.mx6q pcie cannot recognize i210

IMX6Q: Linux boot halts at PCIe config space read

Best regards
igor
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Re: Enable PCI

niklasmolin — Wed, 18 Jan 2017 00:37:57 GMT

Hi Igor.

Thanks for the response.

I'll check the provided info.

Best regards,

Niklas

Re: Enable PCI

niklasmolin — Wed, 18 Jan 2017 00:40:30 GMT

Hi Igor.

When I tried to klick on the first link I got following error:

Unauthorized

This place or content does not exist or access to it is restricted. If you think this is a mistake, please contact your administrator or the person who directed you here.

Best regards,

Niklas