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No QBUS in the "supported hardware devices"?

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Jon Lindgren

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Mar 2, 2000, 3:00:00 AM3/2/00
to port...@netbsd.org
I don't see a QBUS section under http://www.netbsd.org/Hardware

Why is this?

-Jon
--------------------------------------------------------------------
"Can you count my penny?" | NetBSD on i386, Alpha, VAX, NeXT, SPARC,
"One!" | Mac68k, and hopefully more...

emanuel stiebler

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Mar 2, 2000, 3:00:00 AM3/2/00
to Jon Lindgren, port...@netbsd.org
----- Original Message -----
From: Jon Lindgren <jlin...@espus.com>
To: <port...@netbsd.org>
Sent: Thursday, March 02, 2000 07:55
Subject: No QBUS in the "supported hardware devices"?


> I don't see a QBUS section under http://www.netbsd.org/Hardware
>
> Why is this?

Probably, because the title says:

"Busses supported by machine-independent code"

And the qbus is supported only on the port-vax at the moment ?

;-)

cheers,
emanuel

Jon Lindgren

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Mar 2, 2000, 3:00:00 AM3/2/00
to emanuel stiebler
On Thu, 2 Mar 2000, emanuel stiebler wrote:

[snip]

> Probably, because the title says:
>
> "Busses supported by machine-independent code"
>
> And the qbus is supported only on the port-vax at the moment ?
>
> ;-)

Aha!

Thanks.

Brian Chase

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Mar 2, 2000, 3:00:00 AM3/2/00
to emanuel stiebler
On Thu, 2 Mar 2000, emanuel stiebler wrote:

> > I don't see a QBUS section under http://www.netbsd.org/Hardware
> >
> > Why is this?
>

> Probably, because the title says:
>
> "Busses supported by machine-independent code"
>
> And the qbus is supported only on the port-vax at the moment ?

There's work on it going on in port-pmax as well. You mustn't forget the
Q-Bus based MIPS boxes DEC made.

-brian.
--- Brian Chase | b...@world.std.com | http://world.std.com/~bdc/ -----
Never eat any food which might accidentally break inside your mouth! -- K.


emanuel stiebler

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Mar 2, 2000, 3:00:00 AM3/2/00
to Brian Chase

----- Original Message -----
From: Brian Chase <b...@world.std.com>
To: emanuel stiebler <e...@ecubics.com>
Cc: Jon Lindgren <jlin...@espus.com>; <port...@netbsd.org>
Sent: Thursday, March 02, 2000 09:39
Subject: Re: No QBUS in the "supported hardware devices"?


> On Thu, 2 Mar 2000, emanuel stiebler wrote:
>
> > > I don't see a QBUS section under http://www.netbsd.org/Hardware
> > >
> > > Why is this?
> >
> > Probably, because the title says:
> >
> > "Busses supported by machine-independent code"
> >
> > And the qbus is supported only on the port-vax at the moment ?

^^^^^^^^^^^^^^^


> There's work on it going on in port-pmax as well. You mustn't forget the
> Q-Bus based MIPS boxes DEC made.

No, I didn't ;-)

cheers,
emanuel

Chuck McManis

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Mar 2, 2000, 3:00:00 AM3/2/00
to emanuel stiebler, Jon Lindgren, port...@netbsd.org
At 08:31 AM 3/2/00 -0700, emanuel stiebler wrote:
>Probably, because the title says:
>
>"Busses supported by machine-independent code"
>And the qbus is supported only on the port-vax at the moment ?
>;-)

And hopefully we can change that when the Q-bus code is merged into the
PMAX port and my DECSystem 5500 will become another wonderful NetBSD platform.

--Chuck


Simon Burge

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Mar 4, 2000, 3:00:00 AM3/4/00
to Chuck McManis

Simon Burge

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Mar 4, 2000, 3:00:00 AM3/4/00
to Chuck McManis
[ ick, I typed more than that before ... ]

Simon Burge wrote:

I've made a rather half-hearted attempt at 5500 support, but discovered
I know absolutely zip about vax console support. I can get a kernel to
boot and panic with "Console not supported." really easily :-(

Does anyone have any pointers to doco on the "System Support Chip" that
handles console I/O? There seems to be scattered references among the
ka650 code, but not much...

Simon.

Anders Magnusson

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Mar 4, 2000, 3:00:00 AM3/4/00
to Simon Burge
>
> I've made a rather half-hearted attempt at 5500 support, but discovered
> I know absolutely zip about vax console support. I can get a kernel to
> boot and panic with "Console not supported." really easily :-(
>
> Does anyone have any pointers to doco on the "System Support Chip" that
> handles console I/O? There seems to be scattered references among the
> ka650 code, but not much...
>
Console I/O is very simple. A VAX uses internal registers for it in
the CPU, but a MIPS use registers in the SSC. The bits in the SCC registers
is the same as the VAX registers with the same name; RXCS/RXDB/TXCS/TXDB.

Look at vax/gencons.[ch] on how to program it. You can take that code
and use it with very small changes. (mtpr's to pointers).

-- Ragge

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