On Tue, Jun 2, 2015 at 12:26 PM, Steve Goodrich <steve.goodrich@se-eng.com> 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 <dlaurie@chromium.org> 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 <steve.goodrich@se-eng.com> 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 <steve.goodrich@se-eng.com> wrote:
Thanks, Duncan!  I'll have a look.

     -- Steve G.

On Tue, Jun 2, 2015 at 8:48 AM, Duncan Laurie <dlaurie@chromium.org> wrote:
On Tue, Jun 2, 2015 at 7:39 AM, Steve Goodrich <steve.goodrich@se-eng.com> 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):
1) A version of SF100 firmware that will work with flashrom?
2) A version of flashrom that will work with SF100 6.5.3?
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:

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






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