[flashrom] Erase error with hardware sequencing

[Stefan Tauner]

On Mon, 26 Mar 2012 23:54:15 +0530
narayanan best <narayananbest at gmail.com> wrote:

> Hi,
> 
> I have Intel ICH9 with 2 SPI flash chips each with 8MB. I am able to read
> 16MB of flash chip with hardware sequencing.
> But while writing the image i get
> ERASE FAILED at 0x00100000! Expected=0xff , Read=0x44, failed byte count
> from 0x00100000-0x0010ffff:0xfef4
> ERASE FAILED
> 
> I believe the cause is due to hardware sequencing write does not disable
> SRPL (sector protection register lock). I used -p
> internal:ich_spi_force=yes option which didn't help.
> 
> This was confirmed when i gave ich_spi_mode=swseq (read or write) as
> parameter, it disables the SRPL and next write of 16MB with hardware
> sequencing succeeded.
> 
> Let me know if i am missing anything here.
> 
>  Thanks in advance.

hi and thanks for your report!

i dont have time right now to look at it, but it would be great if you
could send a log of flashrom's output with the verbose flags "-VV"
added to your write command line (especially the one with hwseq forced,
both would be best).

-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner