about the file system for nand flash

Jason Z

Hi,

Can you recommend which file systems is the best choice for Nand flash? also do I need to have another file system for my applictions like Yaffs2?

over 12 years ago

0 Avinash Philip over 12 years ago

TI__Intellectual 950 points

Hi,

Choice of file system depends on the requirement. Typically UBIFS would be good choice as it is new flash file system

and that's what am335x supports. Recommended is UBIFS file system AM335x NAND flash.

UBIFS support can found at

http://processors.wiki.ti.com/index.php/UBIFS_Support

AM335x uses 58 bytes of oob for ecc & bad block marking and JFFs2 requires additional 8 bytes for metadata. Due to OOB size restriction of 64 byte, AM335X doesn't support JFFS2.

Comparison of JFFS2 vs YAFFS can found at

http://lists.infradead.org/pipermail/linux-mtd/2003-April/007586.html

Thanks Avinash

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about the file system for nand flash