Ethernet performance using TSE in uClinux

Here's a guess: Your linker script probably doesn't have a MEMORY definition for SSRAM, therefore a section referring to SSRAM memory doesn't exist. You will need to specify the actual address where the SSRAM resides, and it's length. This can be found by looking in SOPC builder.

Nothing's ever easy is it?

I think I'm at the end of my ability to help without actually digging into it myself. You're gonna have to start reading about linker scripts, as I have no real experience in the matter, only a general "feel" for what needs to be done.

It appears that Daixiwen has spelled out 95% of how to do this, so I hope you can get it with a little more effort.

Good luck, and please let us know if you have any succuss and what was the stumbling block for you.