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

[Marek Vasut]

On 12/4/23 09:09, Alessandro Rubini wrote:
> 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.

But what about the bad block markers , do they get erased when you write 
this U-Boot image into the NAND ?

I think the vendor tool somehow dealt with it (but it might have 
depended on some weird stuff in GPMI NAND), I don't think I ever used 
that tool myself.