There is a Mainstone 2.4 kernel available at the following link. It boots "as-is" if you disable the Ethernet driver:
ftp://ftp.arm.linux.org.uk/pub/armlinux ... mainstone/
This is all that I'm aware of being available but it's a good start. I'm not entirely sure what it has in the way of driver support but it might be what you need.
Thanks,