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As a quick addition to my previous message:

What you also can try, is to create a layout file with the region of
size 16MB, and then set the option to only write this region. The area
outside the region will not be modified.
If you decide to go this way, please read manpage, especially -l and
-i options https://flashrom.org/classic_cli_manpage.html

On Fri, Jun 14, 2024 at 12:22 PM Anastasia Klimchuk <aklm@chromium.org> wrote:
>
> Hello Avinash,
>
> Sorry for some delay in response. I was also thinking, what's useful
> that I could tell you.
>
> I understand your idea to shrink the image to 16MB, so that work
> around the bug which affects images >16MB. However, flashrom checks
> whether the size of the image is the same as the size of the chip
> (should throw an error if not). So to write 16MB onto GD25LR512ME
> which is 64MB, you would need to pad the file, with zeros usually, to
> make the file 64MB.
> I don't know whether it would work. Is it possible that you would try
> (if you have tools to recover your device from failure of course)? Or
> perhaps you have tried already?
>
> On the other hand, some good news: support for chips GD25LR256E,
> GD251R512ME has been submitted meanwhile. So no need for patching
> anymore, the patch linked earlier in the thread is merged into main.
>
> --
> Anastasia.



--
Anastasia.