[RFC] [MTD-utils] mkfs.jffs2: JFFS2 and minimal erase block size

Yegor Yefremov yegorslists at googlemail.com
Wed Sep 1 11:36:09 EDT 2010


I'm using a NOR flash SST39VF3201. According to its data sheet the
erase size is 2 Kword. That corresponds to -e 0x1000 value. But the
mkfs.jffs2 utility has a limit of 0x2000 bytes. If I change this limit
to 0x1000 and create an image, I can successfully mount and use it,
with 8KiB value the jffs2 driver fails to work with such an image. I
have found some similar complains like this one
but no one seems to have asked this question on the list.

Is there any reason for limiting erase block to 0x2000?

I've created a patch to decrease this value to 0x1000, but perhaps
there are any other way?

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