[U-Boot] Problems erasing (and writing) to flash

[Wolfgang Denk]

Dear Francesco,

In message <E5FBCC61D01CE84DB7B372ABCDF45CE7873499 at FBCMST09V02.fbc.local> you wrote:
> 
> I'm facing problems when I try to erase flash memory on my embedded
> board (it's a custom Mainstone board, based on PXA270 ).
> I'm using u-boot 1.1.4 (since it is the only version with patch for
> Mainstone), 

You are using a very old software version  with  unknown  out-of-tree
patches  and  probably  additional  (unknown to us) modifications for
your custom (unknown to us) board.

This is not a good base to halp you.

Since 1.1.4, *many* changes have gone into the CFI flash driver (and
into many other areas, too).

You may want to port a more recent version of U-Boot to your hardware.

Best regards,

Wolfgang Denk

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