> This is probably a basic question.
> Is it possible to build a kernel for Xscale 80321 on i386 platform (with
> NetBSD or Linux)?  How much effort will it take if we have to do so? Is there

Yes, with NetBSD-current, cross-building kernel for different platform
is as simple as

	# cd /data/current
	# ./build.sh -m hpcarm -D /data/build -M /datc/obj -u tools kernel=IPAQ

The build.sh script handles all the necessary tasks. For Xscale 80321, you'll
probably need evbarm instead of hpcarm, as well as specifying other kernel
configuration then IPAQ.

> any document or URL describing about it?

IIRC there was an article at daemonnews.org recently on this topic.

	Regards,
		-- Jachym Holecek