K 10
svn:author
V 4
jake
K 8
svn:date
V 27
2003-01-01T19:49:30.000000Z
K 7
svn:log
V 331
Add a driver for the Zilog 8530 dual uart found in Ultra 1s and Ultra 2s.
With a 1 byte transmit fifo, 3 byte receive fifo, and wierd multiplexed I/O
designed for a Z80 cpu, this chip redefines suckage.

Based on the openbsd and netbsd drivers.  Only really works as a console,
modem support is not complete since I can't test it.

END