Annotation of www/mvme88k.html, Revision 1.98
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16: <p>
17: <h2><font color="#e00000">OpenBSD/mvme88k</font></h2>
18:
19: <hr>
1.3 fn 20:
1.29 miod 21: <p>
1.80 miod 22: OpenBSD/mvme88k is a port of OpenBSD to the systems built upon
23: Motorola's 88xxx-based VME motherboard family.
1.95 miod 24:
25: <p>
1.98 ! miod 26: <strong>The OpenBSD/mvme88k port has been discontinued after the 5.5 release.</strong>
1.95 miod 27: </p>
1.1 deraadt 28:
1.29 miod 29: <p>
1.64 miod 30: A mailing list for m88k-based ports is available at
31: <u><font color="#23238e">m88k@openbsd.org</font></u>.
32: To join the OpenBSD/m88k mailing list, send a message body of
33: <b>"subscribe m88k"</b> to
34: <a href="mailto:majordomo@openbsd.org">majordomo@openbsd.org</a>.
35: Please be sure to check our <a href="mail.html">mailing list policy</a> before
36: subscribing.
37:
1.67 nick 38: <a name="toc"></a>
1.29 miod 39: <h3><font color="#0000e0"><i>Table of contents</i></font></h3>
1.3 fn 40: <p>
1.13 smurph 41: <ul>
1.31 jufi 42: <li><a href="#history">History of the port</a>
1.29 miod 43: <li><a href="#status">Current status</a>
1.56 nick 44: <li><a href="#hardware">Supported hardware</a>
1.29 miod 45: <li><a href="#install">Getting and installing OpenBSD/mvme88k</a>
46: <li><a href="#details">Hardware details</a>
1.13 smurph 47: </ul>
48:
49: <hr>
1.29 miod 50: <a name="history"></a>
51: <h3><font color="#0000e0"><strong>History:</strong></font></h3>
1.13 smurph 52:
53: <p>
1.16 smurph 54: The Motorola 88k processor is said to be the best RISC processor ever
1.17 deraadt 55: devised. Its simplicity and elegance combine to make the mvme88k a
1.89 miod 56: hearty, robust platform.
1.29 miod 57:
1.13 smurph 58: <p>
1.89 miod 59: Unfortunately, the first generation designs (88100) made use of companion chips
60: for cache and virtual memory management, making hardware designs painfully
61: complex (and expensive, at that time). The second generation (88110) addressed
1.91 miod 62: this issue, but was plagued with reliability issues. Eventually, Motorola
1.89 miod 63: seized the opportunity to drop the 88000 line in favour of the PowerPC as soon
64: as possible, although some parts of the 88110 still exist in the PowerPC family
65: processors today.
66:
67: <p>
68: Nivas Madhur started the initial mvme88k port for the MVME187 card, building
69: upon the CMU Mach code running on the 88100-based Omron Luna88k systems.
70: However, he moved on to another employer before his work was ready to be
71: imported into the OpenBSD source tree.
72:
73: <p>
74: This integration work was completed by Dale Rahn, but he did not have enough
75: time to continue working on the port. Steve Murphree, Jr., stepped up, and
76: eventually completed the port to the MVME187 in November 1998.
1.13 smurph 77:
78: <p>
1.29 miod 79: Unfortunately, at the same time, a compiler upgrade from gcc 2.8.1 to
1.80 miod 80: egcs exposed a lot of problems in the mvme88k support in gcc, which
1.29 miod 81: could not be fixed in time for mvme88k to be a supported OpenBSD 2.5
82: release.
1.13 smurph 83:
84: <p>
1.29 miod 85: The lack of an in-tree toolchain did not prevent further work on the port,
86: and a lot of changes were made to the codebase, such as revamped autoconf
1.80 miod 87: and on-board SCSI driver, greatly expanded VME bus support, a working
88: install process that correctly creates a Motorola VID block on the disks,
1.29 miod 89: and support for MVME188 as well as improving support for MVME197.
1.13 smurph 90:
1.34 miod 91: <p>
92: During summer 2003, an effort to fix the toolchain eventually produced a
93: working gcc 2.95 compiler, and allowed the port to be self-hosting again.
1.54 miod 94: With the help of Mark Kettenis, the toolchain effort eventually produced
95: working binutils and gdb in late may 2004.
1.34 miod 96:
1.69 miod 97: <p>
98: Work towards multiprocessor support on the MVME188 boards started in
99: summer 2005 and, after a lot of tedious bugfixing, was eventually
100: completed shortly after the 4.2 release in november 2007.
101:
1.70 miod 102: <p>
103: The next step was getting the 88110-based MVME197 designs to work.
1.80 miod 104: Single-processor kernels started to run reliably in december 2007;
105: multiprocessor support was completed in march 2009, but kept triggering
106: obscure bugs which eventually got tracked down to a processor errata,
107: fixed for good in april 2010.
1.70 miod 108:
1.89 miod 109: <p>
110: The long-awaited switch from the a.out binary format to ELF happened after the
1.93 sthen 111: 5.3 release, with a compiler upgrade to gcc 3.3.6. This work paved the way
1.90 miod 112: for ELF shared libraries support.
1.89 miod 113:
1.29 miod 114: <hr>
115: <a name="status"></a>
116: <h3><font color="#0000e0"><strong>Current status:</strong></font></h3>
117:
1.13 smurph 118: <p>
1.96 miod 119: Currently, MVME181, MVME187, MVME188 and MVME197 boards, as well as similar
1.46 miod 120: designs, are booting multi-user, supporting most of the on-board devices.
1.39 david 121: There are still a few caveats; depending on your exact hardware setup,
122: your mileage may vary.
1.19 smurph 123:
1.13 smurph 124: <hr>
1.29 miod 125: <a name="hardware"></a>
126: <h3><font color="#0000e0"><strong>Supported hardware:</strong></font></h3>
1.13 smurph 127:
128: <p>
1.29 miod 129: <h4>Supported processor boards</h4>
1.13 smurph 130:
131: <p>
132: <ul>
1.96 miod 133: <li><strong>MVME180 <i>``Angelfire''</i> and MVME181</strong><br>
134: A low-cost, entry level board, featuring a single 88100 processor, two 88200
135: CMMUs and two on-board serial ports.<br>
1.35 miod 136: <li><strong>MVME187</strong><br>
137: A single 88100 processor-based version of the <a href="mvme68k.html">mvme68k</a>
1.36 miod 138: MVME167 and MVME177 boards. Features two 88200 CMMUs with 16KB cache
1.35 miod 139: each, SRAM, and on-board ethernet and SCSI controllers, as well as four serial
140: ports and one parallel port.<br>
1.55 miod 141: <li><strong>MVME188 and MVME188A</strong><br>
1.38 miod 142: Contrary to the other MVME processor boards, this board has no on-board
143: devices; it just acts as a container for an <i>HYPERmodule</i> which provides
1.69 miod 144: one, two or four 88100 processors, and two or four 88200 (16KB cache) or 88204
1.38 miod 145: (64KB cache) CMMUs per processor.<br>
1.55 miod 146: All HYPERmodules combinations are supported, but M88200 1P128 and 1P512 have
147: not been tested.<br>
1.38 miod 148: External cards specific to the MVME188 family provide memory and serial ports.
1.70 miod 149: <br>
1.75 miod 150: Multi-processor kernels are supported on these boards.
1.70 miod 151: <li><strong>MVME197LE</strong><br>
152: An entry-level design similar to the MVME187, but based on the 88110 processor
153: with integrated MMU and cache controller.<br>
154: <li><strong>MVME197SP and MVME197DP</strong><br>
155: Improved versions of the MVME197LE, with one (SP) or two (DP) 88110 processors,
156: and one 88410 external cache controller per processor.<br>
1.80 miod 157: Multi-processor kernels are supported on these boards.
1.13 smurph 158: </ul>
159:
1.29 miod 160: <p>
1.45 miod 161: Besides various Motorola complete systems (<strong>M8120</strong>,
1.76 miod 162: <strong>Series 900</strong>, etc), this port also runs on the
1.45 miod 163: MVME187-based <strong>Triton Dolphin System 100</strong>.
164:
165: <p>
1.29 miod 166: <h4>Supported on-board devices</h4>
1.13 smurph 167:
1.29 miod 168: <p>
1.13 smurph 169: <ul>
1.96 miod 170: <li><strong>MVME181</strong>
171: <ul>
172: <li>on-board serial ports (ttya-ttyb)
1.98 ! miod 173: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=dart&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">dart</a>)
1.96 miod 174: </ul>
175: </li>
1.70 miod 176: <li><strong>MVME187 and MVME197</strong>
1.13 smurph 177: <ul>
1.96 miod 178: <li>Cirrus Logic CL2400 serial ports (tty00-tty03/tty07<i>[M8120]</i>)
1.98 ! miod 179: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=cl&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">cl</a>)
1.45 miod 180: <li>Intel 82596CA Ethernet interface
1.98 ! miod 181: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ie&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">ie</a>)
1.45 miod 182: <li>NCR53c710 SCSI Controller
1.98 ! miod 183: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=osiop&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">osiop</a>)
1.45 miod 184: <li>128KB SRAM (/dev/sram0)
185: <li>8KB NVRAM (/dev/nvram0)
1.13 smurph 186: </ul>
1.45 miod 187: </li>
188: <li><strong>MVME188</strong>
1.13 smurph 189: <ul>
1.96 miod 190: <li>serial ports on <i>SYSCON</i> board (ttya-ttyb)
1.98 ! miod 191: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=dart&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">dart</a>)
1.45 miod 192: <li>2KB NVRAM (/dev/nvram0)
1.13 smurph 193: </ul>
1.45 miod 194: </li>
1.29 miod 195: </ul>
1.13 smurph 196:
1.29 miod 197: <p>
1.45 miod 198: <h4>Supported VME boards</h4>
1.13 smurph 199:
1.29 miod 200: <p>
1.13 smurph 201: <ul>
1.77 miod 202: <li><strong>MVME327A</strong> SCSI and floppy Controller
1.98 ! miod 203: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vsbic&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">vsbic</a>),
1.77 miod 204: currently limited to the SCSI interface
1.45 miod 205: <li><strong>MVME328</strong> High Performance SCSI Controller
1.98 ! miod 206: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vs&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">vs</a>)
1.45 miod 207: <li><strong>MVME332XT</strong> High Performance Serial I/O Controller
1.42 miod 208: (8 serial ports, 1 parallel port) (vx)
1.45 miod 209: <li><strong>MVME376</strong> Ethernet Communications Controller
1.98 ! miod 210: (<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=le&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">le</a>)
1.33 miod 211: </ul>
212:
1.13 smurph 213: <hr>
1.29 miod 214: <a name="install"></a>
215: <h3><font color="#0000e0">
216: <strong>Getting and installing OpenBSD/mvme88k:</strong>
217: </font></h3>
218:
219: <p>
1.52 david 220: The latest supported OpenBSD/mvme88k release is
1.98 ! miod 221: <a href="55.html">OpenBSD 5.5</a>.
1.52 david 222: Here are the
1.98 ! miod 223: <a href="http://ftp.OpenBSD.org/pub/OpenBSD/5.5/mvme88k/INSTALL.mvme88k">
! 224: OpenBSD/mvme88k 5.5 installation instructions
1.52 david 225: </a>.
226:
227: <p>
1.38 miod 228: Snapshots are made available from time to time, in
1.92 sthen 229: <a href="http://ftp.OpenBSD.org/pub/OpenBSD/snapshots/mvme88k">this location</a>
1.33 miod 230: as well as in a few
231: <a href="ftp.html">mirrors</a>.
232: Here are the
1.92 sthen 233: <a href="http://ftp.OpenBSD.org/pub/OpenBSD/snapshots/mvme88k/INSTALL.mvme88k">
1.33 miod 234: OpenBSD/mvme88k snapshot installation instructions
235: </a> as well.
1.1 deraadt 236:
1.3 fn 237: <hr>
1.30 miod 238: <a name="details"></a>
1.29 miod 239: <h3><font color="#0000e0"><strong>Hardware details:</strong></font></h3>
1.13 smurph 240:
1.14 smurph 241: <p>
1.29 miod 242: As VME hardware is quite uncommon in the average retail place, and Motorola
243: 881x0-based hardware is even more rare, this section is here to satisfy the
244: well-founded curiosity about the mvme88k hardware.
245:
1.89 miod 246: <!--
1.48 miod 247: <p>
248: A comprehensive reference about the m88k processor and the various designs
249: built upon it is being gathered by Paul Weissmann at
1.57 miod 250: <a href="http://badabada.org/">badabada</a>.
1.89 miod 251: -->
1.48 miod 252:
1.52 david 253: <a name="pics"></a>
1.29 miod 254: <p>
255: Pictures of a Motorola 900 modular chassis, with a 33MHz MVME187 CPU board,
256: 32MB RAM, 4 MVME332XT serial boards, and an Archive 250MB QIC tape drive.
1.14 smurph 257: <ul>
1.29 miod 258: <li><a href="images/mvme187-1.jpg">MVME187 Series 900 (front view)</a>
1.14 smurph 259: <li><a href="images/mvme187-2.jpg">MVME187 Series 900 (rear view)</a>
260: <li><a href="images/mvme187-3.jpg">MVME187 Series 900 (rear view w/terminal)</a>
261: <li><a href="images/mvme187-4.jpg">MVME187 Series 900 (rear view close up)</a>
262: <li><a href="images/mvme188-2.jpg">MVME188 Dual proc board</a>
263: </ul>
1.3 fn 264:
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