i.mx28: Winbond nor flash fails to use jffs2

[hwo]

Hi all,

I have a problem about jffs2, that I can't fix it.  The original forum post is here i.mx28: fails to use jffs2

JFFS2 warning: (1075) jffs2_get_inode_nodes: Eep. No valid nodes for ino #26.

JFFS2 warning: (1075) jffs2_do_read_inode_internal: no data nodes found for ino #26

iget() failed for ino #26

I made a ramdisk using my rootfs and test read, write and erase of the nor flash, which is normal.

However when I start up the kernel using jffs2, I remain to see the errors.

Does anyone has used Winbond W25Q256FV with i.MX287 or has any device about this issue?

Thanks.

[igorpadykov]

Hi h

as described on JFFS2 locking issue on 3.14 + patches

it may be caused if one wrote a JFFS2 over an incompletely erased 

flash device (only erase part of flash).  So after some CRC / data errors

one can retain those errors on your flash media. Recommended try low level

"erase all" flash erasing.

Best regards

igor

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[hwo]

Thanks igor for your advice,

  Except mtd-utils tool, I don't know other erase methods.  By which way can I perform the low level erase on my flash? Could I have a little more details.

Best regards.