Pillai, Manikandan said the following on 03/16/2009 01:35 PM:
Hi,
On the OMAP3 EVM board, I have four partition on my Onenand flash of which /dev/mtd4 is a JFFS2 partition.
After booting up linux, I use the following command to mount the jffs2 empty partition.
Linux#> mount -t jffs2 /dev/mtdblock4 /mnt
Then I do a reboot .
When u-boot boots up it gives bad erase block for all the blocks used by /dev/mtd4.
The reason is the JFFS2 filesystem is putting some signature at location 0x0 and 0x1 of OOB locations of every block.
Is there a way this can be avoided ?
A) mount -t jffs2 /dev/mtdblock4 /mnt umount /mnt sync reboot
this gives the garbage collector time to put the cleanmarkers in place.
B) is the kernel's oob layout and ECC strategy (h/w vs s/w ecc) same as that used for u-boot?
Regards, Nishanth Menon