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version 1.36, 2003/09/02 22:00:34

version 1.37, 2003/09/16 16:07:33

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There is currently no maintainer for the mvme88k port, as it is not

The current port maintainer is Miodrag Vallat

officially supported.

(<a href="mailto:miod@openbsd.org">miod@openbsd.org</a>), with the help of

The people working on it are

Steve Murphree. Others are definitely welcome to contribute!

<a href="mailto:smurph@openbsd.org">Steve Murphree</a> and

<a href="mailto:miod@openbsd.org">Miodrag Vallat</a>.

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<h3>Current status:</h3>

Recent work on the toolchain eventually produced a working compiler, although

Currently, only the MVME187 board and similar designs are supported, and will

optimization is not yet totally reliable. Unfortunately, a few kernel bugs

boot multi-user, supporting most of the on-board devices. There are still

prevent the system from being very stable at the moment.

a few caveats; depending on your exact hardware setup, your mileage may vary.

Work is on progress to fix the remaining problems and reliably support more

boards.

<hr>

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<ul>

<li>Fix remaining gcc mvme88k code generation bugs when optimization is used.

<li>Fix remaining gcc mvme88k code generation bugs when -O2 optimization

is used.

<li>Repair MVME188 and MVME197LE support; finish MVME197SP/DP support.

<li>Work on unsupported cards (MVME327, MVME374...).

<li>Work on unsupported device cards (MVME327, MVME374...).

<li>Write code for new binutils (and gdb!!), switch to ELF and, later,

<li>Write code for new binutils (and gdb), switch to ELF and, later,

shared libraries.

</ul>

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Although these boards have been more or less supported in the past, their

These boards are currently not supported. However, code for some of them exists

support is currently non-functional in the latest snapshots.

in the tree, and is currently being debugged.

<ul>

<li>MVME181

A stripped-down MVME187 with no on-board devices, except for serial ports.

<li>MVME188 and MVME188A

Contrary to the other MVME processor boards, this board has no on-board

devices; it just acts as a container for an HyperModule which provides

one, two or four 88110 processors, and two or four 88200 (16KB cache) or 88204

(64KB cache) CMMUs per processor.

<!--

All existing HyperModule models should be supported, but this has only been

tested so far on 1P64 (1 cpu, 4 cmmu) and 2P256 (2 cpu, 4 cmmu) modules.

-->

External cards specific to the MVME188 family provide memory and serial ports.

<li>MVME197LE

An entry-level design similar to the MVME187, but based on the 88110 processor

with an integrated MMU and integrated cache.

with integrated MMU and cache controller.

<li>MVME197SP/DP

Improved version of the MVME197LE, with one or two 88110 processors, and

associated 88410 external cache controllers.

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</h3>

Snapshots are made available from time to time, in

There is currently no supported OpenBSD/mvme88k release. However,

snapshots are made available from time to time, in

<a href="ftp://ftp.openbsd.org/pub/OpenBSD/snapshots/mvme88k">this location</a>

as well as in a few

<a href="ftp.html">mirrors</a>.

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This is a boot log of an MVME187 system.

<pre>

MVME187 board configuration #A: 1 CPUs 2 CMMUs

CPU0 is attached with 2 MC88200 CMMUs

CPU0 is master CPU

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