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Date:      Tue, 2 Jun 1998 11:50:16 -0500 (CDT)
From:      "Daniel M. Eischen" <deischen@iworks.InterWorks.org>
To:        jose@we.lc.ehu.es, owner-freebsd-scsi@FreeBSD.ORG
Cc:        borjam@we.lc.ehu.es, freebsd-scsi@FreeBSD.ORG, gibbs@plutotech.com, gpalmer@FreeBSD.ORG
Subject:   Re: AHC: "cheksum error" reading SEEPROM with Iwill PIILS mb
Message-ID:  <199806021650.LAA15386@iworks.InterWorks.org>

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> >  808e 808e 808e 808e 862d bfc0 bfff bfff bfff bfff bfff bfff bfff
> >  bfff bfff bfff bfff bfff bfff bfff bfff bfff bfff bfff bfff bfff
> >  bfff bfff bfff bfff bfff
> >
> >Strange, isn't it?
>
> I would have expected either valid SEEPROM contents or all ff's indicating
> that the SEEPROM is not present.  Did you find a 93cx6 chip on the MB?

It might be a 93C56 or 93C66 (64 words) with the checksum at the end.

> >In summary, I don't know if the Iwill PIILS mb has SEEPROM or not.
> >If it has one, the AHC driver does not read it correctly.
> 
> Or, the seeprom is not in the standard format.

You might want to change the driver so that if the C46 seeprom read
fails, it tries to read the C56/C66 seeprom.  Instead of basing the
SEEPROM type on the controller type...

Dan Eischen
deischen@iworks.InterWorks.org

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