Yaffs was never merged to the
linux-v2.6 kernel.
It's a project that has been modified several times over time and is no longer add supported by modern linux kernels.
There is a git repository
git clone git://www.aleph1.co.uk/yaffs2
I could git checkout a commit from around 2009-2010, to get something that can compile correctly for the Linux 2.6.32 kernel I need.
But that's not easy.
Does anyone have a compilable version of Yaffs sources for linux kernel 2.6.32?
It's not trivial to download the repository and make all the adjustments to make it compile.
I already tried yesterday, there are a lot of things to know just to be able to compile it correctly.
Unfortunately I can't find any patches, specific for 2.6.32, that add this filesystem to the kernel I need in one go.