I've just pushed changed kirkwood kernel sources to sources. The main visible changes are that the kirkwood kernel will now parse a plan9.ini file found in low memory and will write its #ec contents there just before a reboot, thus preserving them for the next kernel. Now that this is possible, the compiled-in sheevaplug configuration variables have been removed from the kernel. See plug.words for the new boot commands to load /cfg/pxe/$ether into low memory, and cfg-pxe-example for configuration variables that you're likely to need.
There's been no significant progress on usb, flash access nor write-back l2 cache, despite several of us banging our heads against usb and cache walls.
