Annotation of www/mvme88k.html, Revision 1.101
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17: <p>
18: <h2><font color="#e00000">OpenBSD/mvme88k</font></h2>
19:
20: <hr>
1.3 fn 21:
1.29 miod 22: <p>
1.80 miod 23: OpenBSD/mvme88k is a port of OpenBSD to the systems built upon
24: Motorola's 88xxx-based VME motherboard family.
1.95 miod 25:
26: <p>
1.98 miod 27: <strong>The OpenBSD/mvme88k port has been discontinued after the 5.5 release.</strong>
1.95 miod 28: </p>
1.1 deraadt 29:
1.29 miod 30: <p>
1.64 miod 31: A mailing list for m88k-based ports is available at
32: <u><font color="#23238e">m88k@openbsd.org</font></u>.
33: To join the OpenBSD/m88k mailing list, send a message body of
34: <b>"subscribe m88k"</b> to
35: <a href="mailto:majordomo@openbsd.org">majordomo@openbsd.org</a>.
36: Please be sure to check our <a href="mail.html">mailing list policy</a> before
37: subscribing.
38:
1.67 nick 39: <a name="toc"></a>
1.29 miod 40: <h3><font color="#0000e0"><i>Table of contents</i></font></h3>
1.3 fn 41: <p>
1.13 smurph 42: <ul>
1.31 jufi 43: <li><a href="#history">History of the port</a>
1.29 miod 44: <li><a href="#status">Current status</a>
1.56 nick 45: <li><a href="#hardware">Supported hardware</a>
1.29 miod 46: <li><a href="#install">Getting and installing OpenBSD/mvme88k</a>
47: <li><a href="#details">Hardware details</a>
1.13 smurph 48: </ul>
49:
50: <hr>
1.29 miod 51: <a name="history"></a>
52: <h3><font color="#0000e0"><strong>History:</strong></font></h3>
1.13 smurph 53:
54: <p>
1.16 smurph 55: The Motorola 88k processor is said to be the best RISC processor ever
1.17 deraadt 56: devised. Its simplicity and elegance combine to make the mvme88k a
1.89 miod 57: hearty, robust platform.
1.29 miod 58:
1.13 smurph 59: <p>
1.89 miod 60: Unfortunately, the first generation designs (88100) made use of companion chips
61: for cache and virtual memory management, making hardware designs painfully
62: complex (and expensive, at that time). The second generation (88110) addressed
1.91 miod 63: this issue, but was plagued with reliability issues. Eventually, Motorola
1.89 miod 64: seized the opportunity to drop the 88000 line in favour of the PowerPC as soon
65: as possible, although some parts of the 88110 still exist in the PowerPC family
66: processors today.
67:
68: <p>
69: Nivas Madhur started the initial mvme88k port for the MVME187 card, building
70: upon the CMU Mach code running on the 88100-based Omron Luna88k systems.
71: However, he moved on to another employer before his work was ready to be
72: imported into the OpenBSD source tree.
73:
74: <p>
75: This integration work was completed by Dale Rahn, but he did not have enough
76: time to continue working on the port. Steve Murphree, Jr., stepped up, and
77: eventually completed the port to the MVME187 in November 1998.
1.13 smurph 78:
79: <p>
1.29 miod 80: Unfortunately, at the same time, a compiler upgrade from gcc 2.8.1 to
1.80 miod 81: egcs exposed a lot of problems in the mvme88k support in gcc, which
1.29 miod 82: could not be fixed in time for mvme88k to be a supported OpenBSD 2.5
83: release.
1.13 smurph 84:
85: <p>
1.29 miod 86: The lack of an in-tree toolchain did not prevent further work on the port,
87: and a lot of changes were made to the codebase, such as revamped autoconf
1.80 miod 88: and on-board SCSI driver, greatly expanded VME bus support, a working
89: install process that correctly creates a Motorola VID block on the disks,
1.29 miod 90: and support for MVME188 as well as improving support for MVME197.
1.13 smurph 91:
1.34 miod 92: <p>
93: During summer 2003, an effort to fix the toolchain eventually produced a
94: working gcc 2.95 compiler, and allowed the port to be self-hosting again.
1.54 miod 95: With the help of Mark Kettenis, the toolchain effort eventually produced
96: working binutils and gdb in late may 2004.
1.34 miod 97:
1.69 miod 98: <p>
99: Work towards multiprocessor support on the MVME188 boards started in
100: summer 2005 and, after a lot of tedious bugfixing, was eventually
101: completed shortly after the 4.2 release in november 2007.
102:
1.70 miod 103: <p>
104: The next step was getting the 88110-based MVME197 designs to work.
1.80 miod 105: Single-processor kernels started to run reliably in december 2007;
106: multiprocessor support was completed in march 2009, but kept triggering
107: obscure bugs which eventually got tracked down to a processor errata,
108: fixed for good in april 2010.
1.70 miod 109:
1.89 miod 110: <p>
111: The long-awaited switch from the a.out binary format to ELF happened after the
1.93 sthen 112: 5.3 release, with a compiler upgrade to gcc 3.3.6. This work paved the way
1.90 miod 113: for ELF shared libraries support.
1.89 miod 114:
1.29 miod 115: <hr>
116: <a name="status"></a>
117: <h3><font color="#0000e0"><strong>Current status:</strong></font></h3>
118:
1.13 smurph 119: <p>
1.96 miod 120: Currently, MVME181, MVME187, MVME188 and MVME197 boards, as well as similar
1.46 miod 121: designs, are booting multi-user, supporting most of the on-board devices.
1.39 david 122: There are still a few caveats; depending on your exact hardware setup,
123: your mileage may vary.
1.19 smurph 124:
1.13 smurph 125: <hr>
1.29 miod 126: <a name="hardware"></a>
127: <h3><font color="#0000e0"><strong>Supported hardware:</strong></font></h3>
1.13 smurph 128:
129: <p>
1.29 miod 130: <h4>Supported processor boards</h4>
1.13 smurph 131:
132: <p>
133: <ul>
1.96 miod 134: <li><strong>MVME180 <i>``Angelfire''</i> and MVME181</strong><br>
135: A low-cost, entry level board, featuring a single 88100 processor, two 88200
136: CMMUs and two on-board serial ports.<br>
1.35 miod 137: <li><strong>MVME187</strong><br>
138: A single 88100 processor-based version of the <a href="mvme68k.html">mvme68k</a>
1.36 miod 139: MVME167 and MVME177 boards. Features two 88200 CMMUs with 16KB cache
1.35 miod 140: each, SRAM, and on-board ethernet and SCSI controllers, as well as four serial
141: ports and one parallel port.<br>
1.55 miod 142: <li><strong>MVME188 and MVME188A</strong><br>
1.38 miod 143: Contrary to the other MVME processor boards, this board has no on-board
144: devices; it just acts as a container for an <i>HYPERmodule</i> which provides
1.69 miod 145: one, two or four 88100 processors, and two or four 88200 (16KB cache) or 88204
1.38 miod 146: (64KB cache) CMMUs per processor.<br>
1.55 miod 147: All HYPERmodules combinations are supported, but M88200 1P128 and 1P512 have
148: not been tested.<br>
1.38 miod 149: External cards specific to the MVME188 family provide memory and serial ports.
1.70 miod 150: <br>
1.75 miod 151: Multi-processor kernels are supported on these boards.
1.70 miod 152: <li><strong>MVME197LE</strong><br>
153: An entry-level design similar to the MVME187, but based on the 88110 processor
154: with integrated MMU and cache controller.<br>
155: <li><strong>MVME197SP and MVME197DP</strong><br>
156: Improved versions of the MVME197LE, with one (SP) or two (DP) 88110 processors,
157: and one 88410 external cache controller per processor.<br>
1.80 miod 158: Multi-processor kernels are supported on these boards.
1.13 smurph 159: </ul>
160:
1.29 miod 161: <p>
1.45 miod 162: Besides various Motorola complete systems (<strong>M8120</strong>,
1.76 miod 163: <strong>Series 900</strong>, etc), this port also runs on the
1.45 miod 164: MVME187-based <strong>Triton Dolphin System 100</strong>.
165:
166: <p>
1.29 miod 167: <h4>Supported on-board devices</h4>
1.13 smurph 168:
1.29 miod 169: <p>
1.13 smurph 170: <ul>
1.96 miod 171: <li><strong>MVME181</strong>
172: <ul>
173: <li>on-board serial ports (ttya-ttyb)
1.98 miod 174: (<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 175: </ul>
176: </li>
1.70 miod 177: <li><strong>MVME187 and MVME197</strong>
1.13 smurph 178: <ul>
1.96 miod 179: <li>Cirrus Logic CL2400 serial ports (tty00-tty03/tty07<i>[M8120]</i>)
1.98 miod 180: (<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 181: <li>Intel 82596CA Ethernet interface
1.98 miod 182: (<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 183: <li>NCR53c710 SCSI Controller
1.98 miod 184: (<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 185: <li>128KB SRAM (/dev/sram0)
186: <li>8KB NVRAM (/dev/nvram0)
1.13 smurph 187: </ul>
1.45 miod 188: </li>
189: <li><strong>MVME188</strong>
1.13 smurph 190: <ul>
1.96 miod 191: <li>serial ports on <i>SYSCON</i> board (ttya-ttyb)
1.98 miod 192: (<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 193: <li>2KB NVRAM (/dev/nvram0)
1.13 smurph 194: </ul>
1.45 miod 195: </li>
1.29 miod 196: </ul>
1.13 smurph 197:
1.29 miod 198: <p>
1.45 miod 199: <h4>Supported VME boards</h4>
1.13 smurph 200:
1.29 miod 201: <p>
1.13 smurph 202: <ul>
1.77 miod 203: <li><strong>MVME327A</strong> SCSI and floppy Controller
1.98 miod 204: (<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 205: currently limited to the SCSI interface
1.45 miod 206: <li><strong>MVME328</strong> High Performance SCSI Controller
1.98 miod 207: (<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 208: <li><strong>MVME332XT</strong> High Performance Serial I/O Controller
1.42 miod 209: (8 serial ports, 1 parallel port) (vx)
1.45 miod 210: <li><strong>MVME376</strong> Ethernet Communications Controller
1.98 miod 211: (<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 212: </ul>
213:
1.13 smurph 214: <hr>
1.29 miod 215: <a name="install"></a>
216: <h3><font color="#0000e0">
217: <strong>Getting and installing OpenBSD/mvme88k:</strong>
218: </font></h3>
219:
220: <p>
1.52 david 221: The latest supported OpenBSD/mvme88k release is
1.98 miod 222: <a href="55.html">OpenBSD 5.5</a>.
1.52 david 223: Here are the
1.98 miod 224: <a href="http://ftp.OpenBSD.org/pub/OpenBSD/5.5/mvme88k/INSTALL.mvme88k">
225: OpenBSD/mvme88k 5.5 installation instructions
1.52 david 226: </a>.
227:
1.3 fn 228: <hr>
1.30 miod 229: <a name="details"></a>
1.29 miod 230: <h3><font color="#0000e0"><strong>Hardware details:</strong></font></h3>
1.13 smurph 231:
1.14 smurph 232: <p>
1.29 miod 233: As VME hardware is quite uncommon in the average retail place, and Motorola
234: 881x0-based hardware is even more rare, this section is here to satisfy the
235: well-founded curiosity about the mvme88k hardware.
236:
1.48 miod 237: <p>
238: A comprehensive reference about the m88k processor and the various designs
1.99 miod 239: built upon has been gathered by Paul Weissmann at
240: <a href="http://www.3rz.org/mirrors/badabada.org/">badabada</a>.
1.48 miod 241:
1.52 david 242: <a name="pics"></a>
1.29 miod 243: <p>
244: Pictures of a Motorola 900 modular chassis, with a 33MHz MVME187 CPU board,
245: 32MB RAM, 4 MVME332XT serial boards, and an Archive 250MB QIC tape drive.
1.14 smurph 246: <ul>
1.29 miod 247: <li><a href="images/mvme187-1.jpg">MVME187 Series 900 (front view)</a>
1.14 smurph 248: <li><a href="images/mvme187-2.jpg">MVME187 Series 900 (rear view)</a>
249: <li><a href="images/mvme187-3.jpg">MVME187 Series 900 (rear view w/terminal)</a>
250: <li><a href="images/mvme187-4.jpg">MVME187 Series 900 (rear view close up)</a>
251: <li><a href="images/mvme188-2.jpg">MVME188 Dual proc board</a>
252: </ul>
1.3 fn 253:
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