ho hum

1 files changed, 55 insertions, 0 deletions

diff --git a/distrib/notes/mvme68k/hardware b/distrib/notes/mvme68k/hardware
new file mode 100644
index 00000000000..fead464a3b7
--- /dev/null
+++ b/distrib/notes/mvme68k/hardware
@@ -0,0 +1,55 @@
+OpenBSD/sparc 2.0 runs on the following classes of machines:
+	- sun4c (e.g. the SS1, SS1+, SS2, IPC, ELC, IPX, and SLC)
+	- sun4 (e.g. the 4/100, 4/200, and 4/300.   note that support
+		for the 4/400 processor is incomplete)
+	- sun4m (e.g. sparc classic, 4, 5, 10, and 20)
+
+OpenBSD/sparc 2.0 does *not* run on these machines (yet):
+	- sun-4/400 (lacking support for the I/O cache, and has
+			ethernet problems)
+	- sun4d (e.g. sparc center 2000)
+	- sun4u (e.g. Ultrasparcs)
+
+The minimal configuration requires 4M of RAM and ~60M of disk space.
+To install the entire system requires much more disk space, and to run
+X or compile the system, more RAM is recommended.  (OpenBSD with 4M of
+RAM feels like Solaris with 4M of RAM.) Note that until you have
+around 16M of RAM, getting more RAM is more important than getting a
+faster CPU.)
+
+Supported devices include:
+	sun4c sbus video: 
+		cgsix, cgthree, and bwtwo frame buffers
+	sun4 video (not thoroughly tested?): 
+		P4 on-board bwtwo, and VME cgtwo card
+	serial ports: 
+		ttya and ttyb (can be used as console if needed)
+	ethernet: 
+		on-board AMD Lance ethernet ("le0"), 
+		Sbus AMD Lance ethernet cards, 
+		on-board Intel 82586 ethernet (ie0 on 4/100's and 4/200's), 
+		VME Intel 82586 ethernet cards
+	SCSI: 
+		on-board "esp" SCSI controller (sun4c's, and the 4/300),
+		sbus "esp" SCSI controller, 
+		Sun "SUN-3"/"si" VME SCSI controller (polled mode only, slow),
+		Sun "SCSI Weird"/"sw" on-board controller (4/110 only, polled)
+	VME disks:
+		Xylogics 7053 VME/SMD disk controller ("xd"),
+		Xylogics 450/451 VME disk controller ("xy")
+		[note: VME/IPI disks are not supported]
+	sun floppy disk drive on sun4c's
+	sun keyboard and mouse
+	sun4c audio
+
+
+Hardware the we do NOT currently support, but get many questions
+about:
+	multiprocessor machines
+	audio drivers for sun4m machines
+	floppy driver for sun4m machines
+	interrupt driven SCSI driver for sun-4/100's and sun-4/200's
+
+The next release will hopefully run on many more machines.  In
+particular, some Sun4m support will be there.
+