Embedded Linux

[cyberwizzard]

I solved my problem, see the thread I linked before for information and a patch to "fix" the Cypress driver to use the DTS properly.

[pierre_usb]

Hello,

Ok thanks for the "patch".

I succeeded to use C67x00 driver but without to use the device tree. I will try to use the "patch" to use device tree support.

Have you fixed your interrupt error?

I have a very slow USB bandwidth... Have you problems with reading, writing or bandwidth?

Best regards.

Pierre

[cyberwizzard]

The interrupt error was due to unconnected pins which prevented the clearing of the interrupt.

The bandwidth is not extremely high (due to the lack of DMA, I think I read that somewhere) but enough to drive a USB headset for example.

[pierre_usb]

Ok,

The bandwidth for me was 600 kbytes/s before I reduced the value TOTAL_FRAME_BW  in the driver from 12000 to 4096 because I had writing errors... After that, I obtained a bandwidth of 120 kbytes/s but without reading or writing errors.

Thanks.

Pierre

[rekikamal]

hi

I have the same problem as you

I'm working with the ML507 FPGA with power pc processor

Im trying to use the usb port using the linux2.6 kernel

and i have problem with the generator of the device tree

could you please give me some information how make the usb port working with CYPRESS c67x00

thanks

[mikertetc]

I am also working with the C67x00 on the microblaze. I saw your post concerning unconnected interrupt pins. Could you tell me which pins were unconnected? I am seeing pretty much the same problem and would like to point the way for the hardware guy.

[hooligan1989]

I have the same problem as you do.

I tried almost everyway I found on the forum, although there are not many.

Have you solved the problem?

Thank you!

Xiangyu