[flashrom] Dediprog SF100 problem

[Pablo Cases]

I submitted a patch two weeks ago for SF100 with firmware version 5.5.1, but it has not been acked yet though. My (limited) experience with flashrom was that the mainline does not support SF100 with 5.5.1 firmware. Amongst the problems I encountered was that the Read Status Register 1 reply was incorrect  for (at least) WEL and BUSY bits on a standalone W25Q64BV part. Possibly the other bits (e.g. SRP0) were also affected…

So if you can’t find a hardware reason for your problems you could check if my patch solves your problems.

/Regards,
Pablo

--------------------------------
Senior Software Engineer
FlatFrog Laboratories AB


From: flashrom [mailto:flashrom-bounces at flashrom.org] On Behalf Of David Hendricks
Sent: Wednesday, September 10, 2014 12:48 AM
To: Sofer, Yehoshua
Cc: flashrom at flashrom.org
Subject: Re: [flashrom] Dediprog SF100 problem



On Tue, Sep 9, 2014 at 4:43 AM, Sofer, Yehoshua <yehoshua.sofer at intel.com<mailto:yehoshua.sofer at intel.com>> wrote:
Hi,
I have Dediprog SF100 programmer with firmware version 5.5.1
When I try to write to the chip I got an error:
“Some block protection in effect, disabling... Block protection could not be disabled!”
Is there any way to resolve this?

Is the chip you are trying to reprogram soldered onto the mainboard and, if so, is the write-protect pin grounded?

Does the chip you are using have a "one time program" function enabled that will permanently enable block protection regardless of the write-protect pin state? For example, if you have a W25Q64DW and both SRP1 and SRP0 are set, then the status register protect bits become permanently locked.


Regards,
Yehoshua Sofer
Platform Application Engineering – Israel   [cid:image001.jpg at 01CC3EF1.1A8ED330]
Networking Division, Intel Corporation
•        yehoshua.sofer at intel.com<mailto:yehoshua.sofer at intel.com>
Cell   +972 (54)3239840<tel:%2B972%20%2854%293239840>


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--
David Hendricks (dhendrix)
Systems Software Engineer, Google Inc.
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