[Yaffs] nandwrite and nandtest

Dear yaffsers,
Can't seem to ever get nandwrite and nandtest working on the 2.6 kernels ..
Always breaks down while writing with pads . I cannot proceed further
towards yaffs without knowing my basic driver works and can't figure it out
without nandwrite working :( . If anyone has a build or source that will
works for 512 page devices , please send a link . Appreciate any help
yonathana