Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
ISA 3c509 is currently non-functional, although the EISA (3c509-eisa) and MCA (3c529) variants should build OK. None of this code is yet tested.
Probe mechanisms now use standard EISA and MCA bus methods, with 3c509.c defining a custom ISA bus to handle the 3c509 contention resolution logic.