*BSD News Article 18848


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From: veit@mururoa.gmd.de (Holger Veit)
Subject: Re: Help needed identifying a board.
Message-ID: <1993Jul26.081714.5643@gmd.de>
Sender: veit@mururoa (Holger Veit)
Nntp-Posting-Host: mururoa
Organization: GMD - German National Research Center for Computer Science
References:  <22v9cd$d3e@manuel.anu.edu.au>
Date: Mon, 26 Jul 1993 08:17:14 GMT
Lines: 64

In article <22v9cd$d3e@manuel.anu.edu.au>, mbl900@anusf.anu.edu.au (Mathew BM LIM) writes:
|> 
|> What am I :
|> 1)	I came off the AT bus in an old Sun386i.
|> 2)	I am a full length AT style board.
|> 3)	I look something like this :
|> 
|>   Inscriptions on various chips, etc :
|> 
|>   Chip A: Z8530H-6PC
|> 	  953D9VA
|> 	  (C) 1986 AMD
   
|>   Chip D: AMD
|> 	  N80186-10
|> 	  945D3JX
|> 	  (M) (C) INTEL 1978

|> 	64pin male D connector	 ^^^^^^^^^^^ Solid plastic "block" with 
|> 					     8 x 25 pin female D connectors.
|> 
|> 	The plastic "block" has the word "COMPUTONE" written on it.
|> 
|> The thing looks very much like some sort of multi-port communications
|> device to me. Does anyone know for sure what it is and, more importantly,
|> how I can make it work on a 386 PC running 386BSD?

This *is* obviously a multi serial card. The Chip A type is a dual
SCC serial line UART chip, chip B/C named AURORA look like FIFOs (don't know
them), and chip D is a 10MHZ 80186 microcontroller (with DMA and Timer on chip).

But unless it emulates the common 8250/16450 chips to the I/O ports, which I
doubt, given the source of this board, you are quite out of luck to make this
run with 386bsd. Perhaps Sun is so kind to give out specifications of this
no longer produced board.

At least some quickly and unauthorized information from the Sun man pages
and header files (Copyright Sun Microsystems):
CONFIG - Sun386i SYSTEM
     device zs0 at obmem ? csr 0xFC000000 flags 3 irq 9 priority 6
     device zs1 at obmem ? csr 0xA0000020 flags 0x103 irq 9 priority 6
Looks like a memory mapped device, rather than I/O mapped.

Furthermore, I found the following files on my Sparc which could be helpful
to analyze the behavior:
/sys/sundev/zscom.h
/sys/sundev/zsreg.h
/sys/sundev/zsvar.h
/sys/sundev/zs_proto.c
/sys/sundev/zs_conf.c
Unfortunately these are too large to post, and furthermore the Copyright
might prevent this. Find a Sun where you can copy them.

Hope this helps first.

Holger

--
         Dr. Holger Veit                   | INTERNET: Holger.Veit@gmd.de
|  |   / GMD-SET German National Research  | Phone: (+49) 2241 14 2448
|__|  /  Center for Computer Science       | Fax:   (+49) 2241 14 2342
|  | /   P.O. Box 13 16                    | Had a nightmare yesterday:
|  |/    Schloss Birlinghoven              | My system started up with
         53731 St. Augustin, Germany       | ... Booting vmunix.el ...