Re: [flashrom] Erase error with hardware sequencing

[Stefan Tauner]

On Mon, 26 Mar 2012 23:54:15 +0530
narayanan best  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).

Erase error with hardware sequencing

[narayanan best]

Stefan,

Please find the attached log

On Tue, Mar 27, 2012 at 12:46 AM, Stefan Tauner <
[e-mail]> wrote:
> On Mon, 26 Mar 2012 23:54:15 +0530
> narayanan best  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).