How to enable MINI-PCIe slot support

[venkatesh_dyaga]

Hi all,

We use IMX6SLEVK. Linux Host driver built with fsl-community-bsp. Distro is framebuffer. We want to use PCIe slot and tried different PCI slot in kernel configuration combinations.

lspci is not showing any devices.

Please tell us the required kernel config.

Thanks

[igorpadykov]

Hi venkatesh

for kernel configurations one can look on

i.MX6Q PCIe EP/RC Validation System 

and linux documentation (Linux Manual, PCIe Chapter) on i.MX Software | NXP 

may be useful to check

IMX6Q: Linux boot halts at PCIe config space read 

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

[venkatesh_dyaga]

Hi igor,

I followed the links above and changed configurations but it is not detecting any.

Please find attachments and tell us issue

kernel dmesg prints file imx6slevk_kernel_log

kernel configuration file(.config) imx6slevk_kernel_config

Thanks

[igorpadykov]

Hi venkatesh

fsl-community-bsp is not supported by nxp, please try nxp official linux

from source.codeaurora.org/external/imx/linux-imx repository:

linux-imx - i.MX Linux kernel 
Linux Documentation
https://www.nxp.com/design/i.mx-developer-resources/i.mx-software-and-development-tool:IMX-SW

Best regards
igor

[venkatesh_dyaga]

Hi igor,

I have attached the logs of yocto build with imx-yocto-bsp only in the previous reply and i forgot to mention that , Please look into that and let me know.

Thanks,

venkatesh

[igorpadykov]

imx6slevk_kernel_log.zip log is empty. Please rebuild all from scratch

and attach full log, including uboot and kernel, without cuttings.

Best regards
igor

[venkatesh_dyaga]

Hi,

I am so sorry that I wasted your time. Please find attached kernel boot prints in imx6slevk_kernel_dmesg. Please see and let us know the configuration(imx6slevk_kernel_config) issue.

Thanks

[igorpadykov]

Hi venkatesh

I am very sorry that first did not notice that, but i.MX6SL has not PCIe module.

EVK has MINI PCI EXPRESS connector but only usb signals are used for

attaching modem. May be useful to look at i.MX comparison table

https://www.nxp.com/docs/en/brochure/FLYRIMXPRDCMPR.pdf 

Best regards
igor

[venkatesh_dyaga]

Yes. We are using Qualcomm card. It is currently inserted into MINI-PCIe slot.

Unfortunately we don't have any other card.

Thanks