Annotation of www/mvme88k.html, Revision 1.107
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15:
1.106 tb 16: <h2>
17: <a href="index.html">
18: <font color="#0000ff"><i>Open</i></font><font color="#000084">BSD</font></a>
19: <font color="#e00000">mvme88k</font>
20: </h2>
1.29 miod 21: <hr>
1.106 tb 22: <p>
1.3 fn 23:
1.80 miod 24: OpenBSD/mvme88k is a port of OpenBSD to the systems built upon
25: Motorola's 88xxx-based VME motherboard family.
1.105 deraadt 26: <p>
1.95 miod 27:
1.98 miod 28: <strong>The OpenBSD/mvme88k port has been discontinued after the 5.5 release.</strong>
1.1 deraadt 29:
1.105 deraadt 30: <br clear=all>
31: <hr>
1.13 smurph 32:
1.29 miod 33: <a name="history"></a>
34: <h3><font color="#0000e0"><strong>History:</strong></font></h3>
1.13 smurph 35:
36: <p>
1.16 smurph 37: The Motorola 88k processor is said to be the best RISC processor ever
1.17 deraadt 38: devised. Its simplicity and elegance combine to make the mvme88k a
1.89 miod 39: hearty, robust platform.
1.29 miod 40:
1.13 smurph 41: <p>
1.89 miod 42: Unfortunately, the first generation designs (88100) made use of companion chips
43: for cache and virtual memory management, making hardware designs painfully
44: complex (and expensive, at that time). The second generation (88110) addressed
1.91 miod 45: this issue, but was plagued with reliability issues. Eventually, Motorola
1.89 miod 46: seized the opportunity to drop the 88000 line in favour of the PowerPC as soon
47: as possible, although some parts of the 88110 still exist in the PowerPC family
48: processors today.
49:
50: <p>
51: Nivas Madhur started the initial mvme88k port for the MVME187 card, building
52: upon the CMU Mach code running on the 88100-based Omron Luna88k systems.
53: However, he moved on to another employer before his work was ready to be
54: imported into the OpenBSD source tree.
55:
56: <p>
57: This integration work was completed by Dale Rahn, but he did not have enough
58: time to continue working on the port. Steve Murphree, Jr., stepped up, and
59: eventually completed the port to the MVME187 in November 1998.
1.13 smurph 60:
61: <p>
1.29 miod 62: Unfortunately, at the same time, a compiler upgrade from gcc 2.8.1 to
1.80 miod 63: egcs exposed a lot of problems in the mvme88k support in gcc, which
1.29 miod 64: could not be fixed in time for mvme88k to be a supported OpenBSD 2.5
65: release.
1.13 smurph 66:
67: <p>
1.29 miod 68: The lack of an in-tree toolchain did not prevent further work on the port,
69: and a lot of changes were made to the codebase, such as revamped autoconf
1.80 miod 70: and on-board SCSI driver, greatly expanded VME bus support, a working
71: install process that correctly creates a Motorola VID block on the disks,
1.29 miod 72: and support for MVME188 as well as improving support for MVME197.
1.13 smurph 73:
1.34 miod 74: <p>
75: During summer 2003, an effort to fix the toolchain eventually produced a
76: working gcc 2.95 compiler, and allowed the port to be self-hosting again.
1.54 miod 77: With the help of Mark Kettenis, the toolchain effort eventually produced
78: working binutils and gdb in late may 2004.
1.34 miod 79:
1.69 miod 80: <p>
81: Work towards multiprocessor support on the MVME188 boards started in
82: summer 2005 and, after a lot of tedious bugfixing, was eventually
83: completed shortly after the 4.2 release in november 2007.
84:
1.70 miod 85: <p>
86: The next step was getting the 88110-based MVME197 designs to work.
1.80 miod 87: Single-processor kernels started to run reliably in december 2007;
88: multiprocessor support was completed in march 2009, but kept triggering
89: obscure bugs which eventually got tracked down to a processor errata,
90: fixed for good in april 2010.
1.70 miod 91:
1.89 miod 92: <p>
93: The long-awaited switch from the a.out binary format to ELF happened after the
1.93 sthen 94: 5.3 release, with a compiler upgrade to gcc 3.3.6. This work paved the way
1.90 miod 95: for ELF shared libraries support.
1.89 miod 96:
1.29 miod 97: <hr>
98: <a name="status"></a>
99: <h3><font color="#0000e0"><strong>Current status:</strong></font></h3>
100:
1.13 smurph 101: <p>
1.96 miod 102: Currently, MVME181, MVME187, MVME188 and MVME197 boards, as well as similar
1.46 miod 103: designs, are booting multi-user, supporting most of the on-board devices.
1.39 david 104: There are still a few caveats; depending on your exact hardware setup,
105: your mileage may vary.
1.19 smurph 106:
1.13 smurph 107: <hr>
1.29 miod 108: <a name="hardware"></a>
109: <h3><font color="#0000e0"><strong>Supported hardware:</strong></font></h3>
1.13 smurph 110:
111: <p>
1.29 miod 112: <h4>Supported processor boards</h4>
1.13 smurph 113:
114: <p>
115: <ul>
1.96 miod 116: <li><strong>MVME180 <i>``Angelfire''</i> and MVME181</strong><br>
117: A low-cost, entry level board, featuring a single 88100 processor, two 88200
118: CMMUs and two on-board serial ports.<br>
1.35 miod 119: <li><strong>MVME187</strong><br>
120: A single 88100 processor-based version of the <a href="mvme68k.html">mvme68k</a>
1.36 miod 121: MVME167 and MVME177 boards. Features two 88200 CMMUs with 16KB cache
1.35 miod 122: each, SRAM, and on-board ethernet and SCSI controllers, as well as four serial
123: ports and one parallel port.<br>
1.55 miod 124: <li><strong>MVME188 and MVME188A</strong><br>
1.38 miod 125: Contrary to the other MVME processor boards, this board has no on-board
126: devices; it just acts as a container for an <i>HYPERmodule</i> which provides
1.69 miod 127: one, two or four 88100 processors, and two or four 88200 (16KB cache) or 88204
1.38 miod 128: (64KB cache) CMMUs per processor.<br>
1.55 miod 129: All HYPERmodules combinations are supported, but M88200 1P128 and 1P512 have
130: not been tested.<br>
1.38 miod 131: External cards specific to the MVME188 family provide memory and serial ports.
1.70 miod 132: <br>
1.75 miod 133: Multi-processor kernels are supported on these boards.
1.70 miod 134: <li><strong>MVME197LE</strong><br>
135: An entry-level design similar to the MVME187, but based on the 88110 processor
136: with integrated MMU and cache controller.<br>
137: <li><strong>MVME197SP and MVME197DP</strong><br>
138: Improved versions of the MVME197LE, with one (SP) or two (DP) 88110 processors,
139: and one 88410 external cache controller per processor.<br>
1.80 miod 140: Multi-processor kernels are supported on these boards.
1.13 smurph 141: </ul>
142:
1.29 miod 143: <p>
1.45 miod 144: Besides various Motorola complete systems (<strong>M8120</strong>,
1.76 miod 145: <strong>Series 900</strong>, etc), this port also runs on the
1.45 miod 146: MVME187-based <strong>Triton Dolphin System 100</strong>.
147:
148: <p>
1.29 miod 149: <h4>Supported on-board devices</h4>
1.13 smurph 150:
1.29 miod 151: <p>
1.13 smurph 152: <ul>
1.96 miod 153: <li><strong>MVME181</strong>
154: <ul>
155: <li>on-board serial ports (ttya-ttyb)
1.104 sthen 156: (<a href="http://man.openbsd.org/?query=dart&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">dart</a>)
1.96 miod 157: </ul>
158: </li>
1.70 miod 159: <li><strong>MVME187 and MVME197</strong>
1.13 smurph 160: <ul>
1.96 miod 161: <li>Cirrus Logic CL2400 serial ports (tty00-tty03/tty07<i>[M8120]</i>)
1.104 sthen 162: (<a href="http://man.openbsd.org/?query=cl&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">cl</a>)
1.45 miod 163: <li>Intel 82596CA Ethernet interface
1.104 sthen 164: (<a href="http://man.openbsd.org/?query=ie&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">ie</a>)
1.45 miod 165: <li>NCR53c710 SCSI Controller
1.104 sthen 166: (<a href="http://man.openbsd.org/?query=osiop&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">osiop</a>)
1.45 miod 167: <li>128KB SRAM (/dev/sram0)
168: <li>8KB NVRAM (/dev/nvram0)
1.13 smurph 169: </ul>
1.45 miod 170: </li>
171: <li><strong>MVME188</strong>
1.13 smurph 172: <ul>
1.96 miod 173: <li>serial ports on <i>SYSCON</i> board (ttya-ttyb)
1.104 sthen 174: (<a href="http://man.openbsd.org/?query=dart&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">dart</a>)
1.45 miod 175: <li>2KB NVRAM (/dev/nvram0)
1.13 smurph 176: </ul>
1.45 miod 177: </li>
1.29 miod 178: </ul>
1.13 smurph 179:
1.29 miod 180: <p>
1.45 miod 181: <h4>Supported VME boards</h4>
1.13 smurph 182:
1.29 miod 183: <p>
1.13 smurph 184: <ul>
1.77 miod 185: <li><strong>MVME327A</strong> SCSI and floppy Controller
1.104 sthen 186: (<a href="http://man.openbsd.org/?query=vsbic&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">vsbic</a>),
1.77 miod 187: currently limited to the SCSI interface
1.45 miod 188: <li><strong>MVME328</strong> High Performance SCSI Controller
1.104 sthen 189: (<a href="http://man.openbsd.org/?query=vs&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">vs</a>)
1.45 miod 190: <li><strong>MVME332XT</strong> High Performance Serial I/O Controller
1.42 miod 191: (8 serial ports, 1 parallel port) (vx)
1.45 miod 192: <li><strong>MVME376</strong> Ethernet Communications Controller
1.104 sthen 193: (<a href="http://man.openbsd.org/?query=le&manpath=OpenBSD+5.5&sektion=4&arch=mvme88k">le</a>)
1.33 miod 194: </ul>
195:
1.13 smurph 196: <hr>
1.29 miod 197: <a name="install"></a>
198: <h3><font color="#0000e0">
199: <strong>Getting and installing OpenBSD/mvme88k:</strong>
200: </font></h3>
201:
202: <p>
1.52 david 203: The latest supported OpenBSD/mvme88k release is
1.98 miod 204: <a href="55.html">OpenBSD 5.5</a>.
1.52 david 205: Here are the
1.98 miod 206: <a href="http://ftp.OpenBSD.org/pub/OpenBSD/5.5/mvme88k/INSTALL.mvme88k">
207: OpenBSD/mvme88k 5.5 installation instructions
1.52 david 208: </a>.
209:
1.3 fn 210: <hr>
1.30 miod 211: <a name="details"></a>
1.29 miod 212: <h3><font color="#0000e0"><strong>Hardware details:</strong></font></h3>
1.13 smurph 213:
1.14 smurph 214: <p>
1.29 miod 215: As VME hardware is quite uncommon in the average retail place, and Motorola
216: 881x0-based hardware is even more rare, this section is here to satisfy the
217: well-founded curiosity about the mvme88k hardware.
218:
1.48 miod 219: <p>
220: A comprehensive reference about the m88k processor and the various designs
1.99 miod 221: built upon has been gathered by Paul Weissmann at
222: <a href="http://www.3rz.org/mirrors/badabada.org/">badabada</a>.
1.48 miod 223:
1.52 david 224: <a name="pics"></a>
1.29 miod 225: <p>
226: Pictures of a Motorola 900 modular chassis, with a 33MHz MVME187 CPU board,
227: 32MB RAM, 4 MVME332XT serial boards, and an Archive 250MB QIC tape drive.
1.14 smurph 228: <ul>
1.29 miod 229: <li><a href="images/mvme187-1.jpg">MVME187 Series 900 (front view)</a>
1.14 smurph 230: <li><a href="images/mvme187-2.jpg">MVME187 Series 900 (rear view)</a>
231: <li><a href="images/mvme187-3.jpg">MVME187 Series 900 (rear view w/terminal)</a>
232: <li><a href="images/mvme187-4.jpg">MVME187 Series 900 (rear view close up)</a>
233: <li><a href="images/mvme188-2.jpg">MVME188 Dual proc board</a>
234: </ul>
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