Re: Gigabit Ethernet with pci interface

Altera_Forum · ‎03-14-2006

Hi everyone,

i have custom board with an Intel 82540EM gigabit ethernet controller. Now i want to integrate it in uClinux. My question is how to do this in uClinux and nios. Did anyone do something like this before (interfacing a pci device in general). Are there any issues that i need to know?

I know i need a controller: I want to use the pci controller from OpenCores.org. Afterwards i will have to modify or writing drivers.

Any hints, tips and information to start would be great

Thanks a lot

Altera_Forum · ‎03-15-2006

I wrote the PCI driver for Altera pci bridge based on the pci host brdige sample hardware design,

http://forum.niosforum.com/forum/index.php?showtopic=3059 (http://forum.niosforum.com/forum/index.php?showtopic=3059)

It still need some clean up. And I will post it in the buildroot guide soon.

http://forum.niosforum.com/forum/index.php?showtopic=3174 (http://forum.niosforum.com/forum/index.php?showtopic=3174)

Altera_Forum · ‎03-15-2006

Hello Hippo,

I'm happy to hear that someone is already working on this. If your driver is really available i would use the altera pci bridge. This would save me a lot time.

Maybe you can tell me something about your driver, so i can start working on this driver for the ethernet controller. I won't have a problem if your driver code is dirty. Forgive me, i don't like waiting... and to be honestly i don't have much time to achieve this part of my project.

Thanks a lot...

Altera_Forum · ‎03-15-2006

Just one more day.

Altera_Forum · ‎03-15-2006

I'm looking forward to it

Thank you very much, Hippo.

Cheers

Helmchen

Altera_Forum · ‎03-16-2006

Please check post#52 in the buildroot guide. There is the pci driver in kernel 2.6.15.6 .

Altera_Forum · ‎03-16-2006

I will try it...

Altera_Forum · ‎03-17-2006

There are still some problems in flushing cache.

Working fine without dcache in nios2.

I am working to resolve this issue.

Altera_Forum · ‎03-17-2006

The dma cache flush issue is resolved.

It works with dcache support now.

Please download kernel3.zip again.

Altera_Forum · ‎03-19-2006

First of all, thank you very much. I hope I getting started the next days.

Cheers

Helmchen