USB Devices not getting detected with USB card on PCI express.

[Upakul Barkakaty]

Hello

I’m stuck in the very same situation in an exactly same scenario. I’m using
“Emerson Networks mvme7100” board that contains the Free-scale MPC8641d
processor. The setup is exactly same as mentioned i.e.

[PowerPC controller]<-->[PCI Express]<-->[PCIe-to-PCI bridge]<-->[PCI USB
Card]<-->USB Device
 
And I’m getting SET_ADDR_FAILED error. I tried to debug this further at my
end and found this was perhaps due to interrupts not coming from the USB
controller. And yes, I verified that it works as expected in X-86 setup.
Also, the same USB controller works fine if I have PCI instead of PCI
Express in my setup. 

My QUESTION: IS this a known issue? Or any other developer facing the same
issue?

Any suggested work around for the same?

Cheers!!





Neha Oberoi wrote:
> 
> Hi all,
> 
> I am facing a strange problem with my freebsd stack. I am using freebsd
> version 6.0. The set up is as follows:
> 
> [PowerPC controller]<-->[PCI Express]<-->[PCIe-to-PCI bridge]<-->[PCI USB
> Card]<-->USB Device
> 
> When I plug in an USB device it gives a SET_ADDR_FAILED error, and
> disables
> the port.
> 
> Now the strange thing is that the same setup with PCIe and USB is working
> all right on a x86 setup.
> 
> I tried debugging but didnt get any obvious errors. Any pointers in this
> regard would be most welcome.
> 
> Best regards,
> Nehaa
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> 

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