[U-Boot] Add filesystem support

[Wolfgang Denk]

Dear Pietro Paolini,

In message <51C80AA5-303E-4737-864C-6D05577D19E7 at aol.com> you wrote:
>
> I am working on an embedded system which we would like upgrade using a new filesystem YAFFS2 instead of the old JFFS2, we actually mount the JFFS2
> partition from U-Boot and then we start  the kernel. I looked in the boot source tree we actually use and I did not find YAFFS2 (or UBIFS ..) 

Hm... I recommend to look at the mailine U-Boot tree instead:

	-> ls fs
	Makefile  cbfs  cramfs  ext4  fat  fdos  fs.c  jffs2  reiserfs
	sandbox  ubifs  yaffs2  zfs

> under the fs/ folder, then I assume I don't have it. I'd like add that support without update the whole uboot source tree, is it possible or is too much complicated ? 

This depends a lot on which exact version of U-Boot you are running
now, but given the fact that you see neither yaffs2 nor ubifs it
appears to be _very_ old, so you're probably out of luck.

On the other hand - switching to mainline code is usually a very good
idea anyway, so go for that.

Best regards,

Wolfgang Denk

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