Ups, the flash devices i have set a different write algorithm was the SST 25VF032B and 25VF064C, and not the 25VF016B, and i have NOT tested the 25VF016B before. Sorry for that wrong message! So you will not see any speed-up for the 25VF016B, but the error messages will be gone after applying my patch. What you could do to speed-up this chip is to change the write algorithm from "spi_chip_write_1" to "spi_aai_write" after applying my SST 25VF032B and 25VF064C patch.
Regards, Helge
-----Original Message----- From: flashrom-bounces@flashrom.org [mailto:flashrom-bounces@flashrom.org] On Behalf Of Wagner, Helge (GE Intelligent Platforms) Sent: Dienstag, 17. August 2010 09:29 To: Veres, Greg; Michael Karcher Cc: flashrom@flashrom.org Subject: Re: [flashrom] SST25VF016B verbose output
Hi,
i have marked the erase of that chip already as working, and i have also supplied a patch which will prevent the error messages (i have added on-the-fly reprogramming of the list of predefine commands). Please see http://www.flashrom.org/pipermail/flashrom/2010-August/004331.html And with my patch you will see a significant programming speed-up (from 228 to 113 seconds in my case) as it now uses a different programming algorithm. Unfortunally, my patch has not been acked yet. Hopefully it will happen soon.
Regards, Helge
-----Original Message----- From: flashrom-bounces+helge.wagner=ge.com@flashrom.org [mailto:flashrom-bounces+helge.wagner=ge.com@flashrom.org] On Behalf Of Veres, Greg Sent: Dienstag, 17. August 2010 00:50 To: Michael Karcher Cc: flashrom@flashrom.org Subject: Re: [flashrom] SST25VF016B verbose output
Great. It did seem to work. When I read the section of the memory that I wrote, it contained what I wrote. So I was happy. :)
Does this allow you guys to mark erasing on that chip as a yes? It is currently marked as '?'.
Greg
-----Original Message----- From: Michael Karcher [mailto:flashrom@mkarcher.dialup.fu-berlin.de] Sent: August-16-10 6:33 PM To: Veres, Greg Cc: flashrom@flashrom.org Subject: Re: [flashrom] SST25VF016B verbose output
Am Montag, den 16.08.2010, 11:43 -0700 schrieb Veres, Greg:
I noticed that the erase fails on the SST25VF016B. Attached is the log
file for burning a portion of the bios file.
Thanks for your mail. While the output of flashrom is quite unclear, what you are observing is not an erase failure, but normal operation on Intel chipsets. Intel Chipsets allow only to send 8 predefined commands to the flash chip and flashrom does not yet support changing the predefinitions on the fly.
Your flash chip supports different erase commands (mostly eraseing different block sizes), and both 0x20 and 0x52, the first two erase commands listed for your chip, are not in the default list-of-eight that is sent to the chipset, so these erase methods fail. The third one OTOH worked flawlessly, allowing flashrom to continue.
Regards, Michael Karcher
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