MTD Erase Size usage in JFFS2

[Ramgopal Kota]

Hi,

our board is having a 8MB flash and we are using JFFS2 as a image storage.
Due to lead times we decided to use 4 vendors flash chips of same size, they all work fine.
Each flash chip has different sector sizes.

 As part of  manufacturing  process, we took a working image on  one flash and burn it in all  different vendor flashes,
 due to sector size mishap  they are not working as intended.

I want to know if I can specify something similar to "-e" option in mkfs.jffs2 where I can specify the block size.

Thanks and Regards,
Ramgopal Kota