[PATCH] tools: mxsboot: pre-fill buffer with 0xff, not 0

[Alessandro Rubini]

Hello.

>>> pre-filling with 0xff creates a proper boot loader image, but no
>>> bad-block marker is there when written to flash.

> Isn't there some kobs-ng or whatever tool it was to properly initialize 
> the NAND on MXS ?

I didn't know. I used what u-boot offers, which works for me without
vendor tools -- and dare I say I trust u-boot tools more than vendor
tools?.

The default environment even has the rule to reflash from any
u-boot.nand you manage to put into RAM. The only issue is that
u-boot.nand, as created, marks good blocks as bad by prefilling with
zeores.

thanks
/alessandro