Still no solution for mounting GPIO-addressed Flash partition (JFFS2) as root.
Do you have a BF527 or BF537 board that you could test against? I believe that the TLL6527M (BF527), Bluetechnix CM-BF527, Bluetechnix TCM BF527, or maybe the Bluetechnix CM BF537U/E have similar GPIO-addressed Flash chips on board that should work with the same drivers as our board.
I have sort of been able to cobble together a three-stage build process that runs and mounts my Flash filesystem, but I cannot get either my own defconfig or the build_jffs2_fs_kernel.exp script to build a clean kernel. I would appreciate some help finding out why this feature set is so difficult to build into the kernel.