U-boot Hang on IMX6QP with PCIe support enabled

[prathamrahate]

Hi,

I am having custom board with imx6qp. I have enabled PCIe support in u-boot( version 2015.04).

I observed that u-boot hangs at  imx_pcie_regions_setup in drivers/pci/pcie_imx.c. The same uboot is able to work on sabresd board(Though it says pcie phy link never came up), without hang. 

I observe the similar behavior  with the kernel (3.14.52) too.

What is the solution for this issue? Is there any patch available for uboot to work with imx6qp?

Thanks,

Prathamesh

[igorpadykov]

Hi Prathamesh

one can check if PCIe clock is enabled in CCM_CCGR4
and voltages as below

Best regards
igor
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[prathamrahate · Accepted solution]

Hi Igor,

Thanks for the input.

Following  patch worked for me on imx6qp.

U-Boot - [PATCH] pci: pcie_imx: Fix hang on mx6qp 

Thanks,

Prathamesh

[llafranier97]

Where can I find this solution/patch?