SM750 graphics on a Custom QorIQ T4240 SBC

[ranjithkumarv]

We have developed a custom SBC based on NXP Qoriq T4160 Processor and SM750 device connected on PCIe.

I have compiled the SM750 driver  through Yocto for Linux Kernel 4.1.35 and Linux booting was successful.

After that through insmod command installed the kernel module and i am able to see 2 framebuffers named /dev/fb0 and /dev/fb1 but when i try to display some random colors on vga/dvi nothing displayed at the output.

Is that anything i have to do in u-boot/dts for bringing up sm750?

Can anyone help in configuring SM750 and testing the interface.

I attached the log file which contains the commands executed at linux.

Thanks in advance,

Ranjith

[bpe]

PCIe is a plug-and-play bus, which means you normally should not
add anything to the Device Tree to make the system aware of a
PCIe-connected peripheral. Based on your lspci output, Linux does
recognize the problematic device and there is a kernel driver that
owns it. The suggestions therefore are:

1. Consult at your hardware and driver documentation for configuration,
   options, etc.
   
2. Approach the hardware manufacturer or the driver maintainer for support.

3. Debug the driver to see why it reacts in an unexpected way.

Regards,

Platon

[ranjithkumarv]

Hi bpe,

Thanks for the reply.

I will check with the hardware engineer.

I am also contacting the vendor for Software driver support, once i get some input from the vendor i will test and let you know the result.

Regards,

Ranjith