Newer kernel on SAM9-L9260?

[mcmayer]

Has anyone had success with a newer Linux kernel on the SAM9-L9260?
All the patches I can find are 2.6.38 or earlier, that's pretty old. Is this worth attempting at all?
(I have dozens of devices based on the SAM9-L9260 lying around that run on an ancient kernel - the hardware is nice enough, I don't want to write them off.)