[flashrom] Support for M50FLW080A

[Javier Bizcocho]

Hello there,

Few months ago I asked about the support for this chip M50FLW080A, in 
order to do live flashing on the same motherboard.

Paul and Luc kindly gave me some pointers, but unfortunately I just 
don't have physical time to dive into this atm.

Would there be any chance for somebody to give me a hand with this 
please?. I really need to update my motherboard since is stopping me 
from upgrading my CPU.

Thank you very much in advance,

Javi.

On 19/04/2023 09:14, Paul Kocialkowski wrote:
> Hi Javier,
>
> On Wed 19 Apr 23, 01:32, Javier Bizcocho wrote:
> > Hello guys,
> >
> > Just a soft bump.
> >
> > No one has any comment about this? :).
>
> So if what you're trying to do is to flash from the live system running on
> said motherboard, you probably need some kind of board enable code to allow
> write/erase access. Seehttps://www.flashrom.org/Board_Enable
>
> This can be as trivial as toggling a GPIO, but the less trivial part is usually
> to find out which GPIO that is.
>
> Quoting the datasheet for the chip about security:
> – Hardware Write Protect pins for block protection
> – Register-based Read and Write Protection
> – Individual Lock Register for each 4 KByte sector
>
> So you might want to take a look at the status of the two latter points as well.
>
> Cheers,
>
> Paul
> > Kind Regards,
> >
> > Javi.
> >
> > On 17/04/2023 14:34, Javier Bizcocho wrote:
> > > Hello guys,
> > >
> > > I'm trying to flash a modded bios on my motherboard. The computer is a
> > > Dell SC1435 and the flash chip in question "M50FLW080A" is supported by
> > > the tool already, but just partially.
> > >
> > > It looks like it can read the bios, but when reading or erasing it
> > > always fails (and every now and then it even forces my PC to reboot). My
> > > server is running FreeBSD 13.1, but I've also tried with Ubuntu (same
> > > result). Even though it fails to erase / write the chip was never
> > > altered at all, so I wonder if there is any kind of protection on it.
> > >
> > > Is there any logs that I can extract from the tool itself? I'd like to
> > > avoid the need to de-soldering the chip in order to flash it :).
> > >
> > > Any thoughts?
> > >
> > > Thank you in advance,
> > >
> > > Javi.
> >
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