[1524] in linux-scsi channel archive
Re: Please, SYMBIOS version question (ncr53c815)
daemon@ATHENA.MIT.EDU (Francisco J. Montilla)
Thu Mar 6 15:14:25 1997
Date: Thu, 6 Mar 1997 05:25:13 +0100 (MET)
From: "Francisco J. Montilla" <pacopepe@nova.es>
To: Gerard Roudier <groudier@club-internet.fr>
Cc: "Francisco J. Montilla" <pacopepe@nova.es>, linux-scsi@vger.rutgers.edu
In-Reply-To: <Pine.LNX.3.91.970305223849.147A-100000@localhost>
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On Wed, 5 Mar 1997, Gerard Roudier wrote:
Hi! Thanks a lot for your reply!
> > I have the NCR Fast SCSI II 53c815 controller, with SYMBIOS Bios
> > version 3.0.x ; I've seen there's a new version (4.0.x), and have read on
> > its documentation not to use it with OS/2.
> >
> > Will the Gerard Roudier driver benefit from upgrading to this
> > BIOS?
[...] (Interesting explanations sniped)
> Once Linux is booted, the SDMS BIOS becomes useless. The ncr driver
> performs all necessary initialisations and then drives directly the scsi
> controller.
>
> So, the driver will not benefit from upgrading to BIOS 4.0.
Ah... the SYMBIOS warning about not to use it with NT or OS/2
surprised me...
The only thing because I would like to upgrade the BIOS it's
because I author custom-system CD-Roms, and I can't boot them to check
because I haven't got an IDE CD-Rom (my MB BIOS has that feature) Do you
know if a CD-Booteable capable SCSI BIOS will be written for the NCR?
> > Also, I'm using Gerard's driver version 18, and the led question
> > isn't so clear to me. Does the card have conectors for a controller led?
> > What's what the led feature provide support for?
>
> The led question is not clear at all.
> I would be surprised your board does not have led connector.
:( I'm afraid that either I'm blind, or it doesn't have one...
could you make a litle ascii drawing to show where it's located?
> The SYMBIOS NCR53C8XX chips provide 5 general purpose IO pins that can
> be used for vendor specific features (GPIO0 to GPIO4).
>
> Genuine SYMBIOS boards uses GPIO0 for led support.
> - GPIO0 = 0 --> LED ON
> - GPIO0 = 1 --> LED OFF
[...] (lots of very interesting info sniped)
Thaks a lot for this huge reply!! I've learnt a lot! I wonder
why my board doesn't have that pins... :(
Greetings,
*****---(*)---**********************************************---------->
Francisco J. Montilla Irc: pukka Seville
pacopepe@nova.es FiDO: 2:345/402.22 Spain
INSFLUG (LiNUX) Coordinador. www.insflug.nova.es / ftp.insflug.nova.es
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