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<p>
<h2><font color="#e00000">OpenBSD/solbourne</font></h2>

<hr>

<p>
OpenBSD/solbourne is an experimental port of OpenBSD to the Solbourne ``IDT''
family of workstations, built upon the sparc-compatible Panasonic <i>KAP</i>
processor.

<p>
The current port maintainer is Miod Vallat
(<a href="mailto:miod@openbsd.org">miod@openbsd.org</a>).
Others are definitely welcome to contribute!
</p>

<a href="#toc"></a>
<h3><font color="#0000e0"><i>Table of contents</i></font></h3>
<p>
<ul>
  <li><a href="#history">History of the port</a>
  <li><a href="#status">Current status</a>
  <li><a href="#projects">Project list</a>
  <li><a href="#hardware">Supported hardware</a>
</ul>

<hr>
<a name="history"></a>
<h3><font color="#0000e0"><strong>History:</strong></font></h3>

<p>
The KAP processor used in the IDT systems, albeit using an instruction
set similar to the sparc processors, uses a completely different MMU.
Because of this, no free operating system considered running on these Solbourne
machines more than a few minutes...

<p>
At some point, an S4000 was donated by Mike Nicewonger to Miod Vallat, who then
had no excuse not to work on a port.
After a few years of procrastination, real work on a port eventually started in
march 2005, leading to an initial import in the OpenBSD tree exactly one month
later. And work continues...

<hr>
<a name="status"></a>
<h3><font color="#0000e0"><strong>Current status:</strong></font></h3>

<p>
Currently, only the S4000 system has been tested; but other systems should work,
although the L2 cache in the S4000DX systems is not supported yet.

<p>
Right now, the system boots single-user, but userland has issues, which are
being worked on.

<hr>
<a name="projects"></a>
<h3><font color="#0000e0"><strong>Projects (in no particular order):
</strong></font></h3>

<p>
<ul>
  <li>Fix the remaining userland problems.
  <li>Write drivers for the on-board devices (SCSI, audio, keyboard)
  <li>Write drivers for Solbourne specific SBus frame buffers
  <li>Write an FCode interpreter, in order to support recent SBus cards the PROM
  does not configure.
</ul>

<hr>
<a name="hardware"></a>
<h3><font color="#0000e0"><strong>Supported hardware:</strong></font></h3>

<p>
<h4>Supported machines</h4>

<p>
<ul>
<li>S3000 <i>(untested)</i>
<li>S4000
<li>S4000DX <i>(untested)</i> (but the L2 cache is not supported yet)
</ul>

<p>
<h4>Supported devices</h4>

<ul>
<li><strong>Serial ports</strong>
  <ul>
   <li>ttya and ttyb on-board serial ports
(<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=zs&amp;sektion=4&amp;arch=solbourne">zs</a>)
  </ul>

<li><strong>Ethernet adapters</strong>
  <ul>
   <li>on-board AMD Lance Ethernet (<a href="http://www.openbsd.org/cgi-bin/man.cgi?arch=solbourne&amp;query=le&amp;sektion=4">le</a>)
  </ul>
</ul>

<hr>
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<small><a href="mailto:www@openbsd.org">www@openbsd.org</a></small>
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<small>$OpenBSD: solbourne.html,v 1.2 2005/04/19 22:59:21 miod Exp $</small>

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