[U-Boot] Problem with SD card and ext2ls

I have an SD card with an ext2 partition and I am trying to access it through ext2ls command but this is what I get:

# ext2ls mmc 0:1 / ** Bad partition - mmc 0:1 **

I have read some previous mails of some people complaining about a similar problem: http://www.mail-archive.com/u-boot@lists.denx.de/msg12776.html

Here also Wolfgang Denk says that ext2 is currently broken in u-boot for newer ext2 images.

Is this still true or has it been fixed since then?

Thank you.