It looks like we're getting there :)

This patch (against the stock openwrt-svn) combines the ideas from David
and Claudio (with some fixes in the byte ordering) into something that
can write a bootable kernel image to the flash.

However, the resulting kernel cannot read the pre-2.6.17 yaffs format
because of the different blockStatus encoding.

While I can get two-way compatibility by also including the block status
byte in an oob_free range and handling it at the yaffs level, I don't
know if it doing that is a good idea.

What do you think?

Andrea