Re: [coreboot] Flashrom won't work with DediProg SF100 fw 6.5.03

[David Hendricks]

On Tue, Jun 2, 2015 at 12:26 PM, Steve Goodrich 
wrote:
> I'll give that a shot (thank you).
>
> I notice that the VERIFY is requesting 256 bytes at a time for all 8 MB...
> wouldn't it be better to use a page size from the flash chip (like 4 KB)?

Yes. There is actually a patch to read the whole flash which speeds things
up a lot on Dediprog:  https://chromium-review.googlesource.com/#/c/240543/

Since that patch touches common code, though, the ME gremlin rears its ugly
head and we need to be careful not to read into a read-protected region. So
there's still a bit of work to be done (I started on that here:
https://chromium-review.googlesource.com/#/c/257191/).

If either/both of those patches help, feel free to hijack them and so we
can make progress on this.
> Thanks!
>  -- Steve G.
>
> On Tue, Jun 2, 2015 at 1:14 PM, Duncan Laurie 
> wrote:
> > It looks like the code tries 12MHz by default but can be set to 24MHz
> > which is worth a try.
> >
> > I think the syntax would just be "-p dediprog:speed=24"
> >
> > -duncan
> >
> > On Tue, Jun 2, 2015 at 11:38 AM, Steve Goodrich <
> > [e-mail]> wrote:
> > > I got the Chromium version of flashrom to work, but it takes 20 minutes
> > > to flash/verify the 8 MB device.  So, while "working" is far better than
> > > "not working", it is a bit sluggish.  :-)
> > >
> > > Any thoughts on speeding it up?
> > >  -- Steve G.
> > >
> > > On Tue, Jun 2, 2015 at 8:57 AM, Steve Goodrich <
> > > [e-mail]> wrote:
> > > > Thanks, Duncan!  I'll have a look.
> > > >  -- Steve G.
> > > >
> > > > On Tue, Jun 2, 2015 at 8:48 AM, Duncan Laurie 
> > > > wrote:
> > > > > On Tue, Jun 2, 2015 at 7:39 AM, Steve Goodrich <
> > > > > [e-mail]> wrote:
> > > > > > I have a DediProg SF100 programmer that I want to use with flashrom
> > > > > > under Linux.  Unfortunately, the SF100 has firmware version 6.5.03 and I
> > > > > > can't use flashrom with it.
> > > > > >
> > > > > > I'm looking for a solution.  Does anyone have (or know where/how I
> > > > > > can get):
> > > > > > A version of SF100 firmware that will work with flashrom?
> > > > > > A version of flashrom that will work with SF100 6.5.3?
> > > > > > A Linux tool -- other than flashrom -- that will work with the
> > > > > >
> > > > > > SF100 with its current firmware?
> > > > > >
> > > > > > Thanks for any help you can provide!
> > > > > >      -- Steve G.
> > > > >
> > > > > Hi Steve,
> > > > >
> > > > > There is a patch in the chromium flashrom tree that add support for
> > > > > firmware 6.0+ (which may or may not include 6.5.3) that does not seem to be
> > > > > in the upstream flashrom:
> > > > >
> > > > > https://chromium.googlesource.com/chromiumos/third_party/flashrom/+/543101a0...
> > > > >
> > > > > I suspect the chromium flashrom tree has diverged enough from upstream
> > > > > that it will not apply cleanly there but it is only a 130 line patch so it
> > > > > shouldn't be too bad to integrate if needed.
> > > > >
> > > > > -duncan