where do I get information about mtd partition?

Is there any tutorial available on mtd's support of jffs2?

I would like to know how mtd supports jffs2 and where to debug if I am unable to mount jffs2 correctly.

Further I would like to know if there is any document which would describe the function of files in mtd folder of linux kernel.

when I did pattern search for mtd_partition I got a long list of files so I am not sure how do I find out the details of mtd partitions

Regards

Munira Ahmed