mkfs.jffs2 and NAND smartmedia card

Hi!

I am currently working on installing a JFFS2 filesystem on an ARM system, using a Samsung NAND Smartmedia device and 2.4.20 kernel from montavista 3.1.

I succeed in mouting the partition and installing my filesystem in it using the following commands:

root:/# mount -t jffs2 /dev/mtdblock1 /mnt
root:/# cp -r /usr/admin/* /mnt

My aim is now to create my filesystem using mkfs.jffs2. When mounting the partition, I get ECC, CRC and magic bitmask errors.

root:/# mkfs.jffs2 -r /usr/admin -s 512 -e 16384 -b -o /dev/mtd1
root:/# mount -t jffs2 /dev/mtdblock1 /mnt
mtd->read(0x400 bytes from 0x0) returned ECC error
jffs2_scan_eraseblock(): Node at 0x00000000 {0x1985, 0xe001, 0x0000002c) has invalid CRC 0xa026b584 (calculated 0xa026b184)
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000008: 0xa026 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000018: 0x4119 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x0000001c: 0x0404 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000020: 0xe158 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000024: 0x5121 instead
jffs2_scan_eraseblock(): Magic bitmask 0x1985 not found at 0x00000200: 0x0801 instead
etc.

It seems that the OOB data is damaged...
Do you have any idea of what happens?

Thanks in advance!

Yann

Direct output of mkfs.jffs2 to NAND is not working yet. Output to a file and use nandwrite to store it on the FLASH

tglx