nell
—
sbus pcmcia bridge
# only needed for 32bit sparcs (remove the options line on sparc64):
options FULL_SPARC_BUS_SPACE
nell* at sbus? slot ? offset ? flags 0
pcmcia* at nell? controller ? socket ?
The nell
is a pcmcia bridge for the sbus. It is also
known as STP4020, the name of the chipset used to implement it, and has SUN
part number 501-2367.
The firmware assigns two interrupt levels to the nell, but the
driver only needs a single interrupt. Depending on distribution of interrupt
levels on your machine you might prefer the driver to use either the first
(use flags value 0) or the second (use flags value 1).
Each nell
instance creates a kernel thread, named like
the instance. This thread is used to watch for card insertions and removals,
and handling the attachment and initialization of the card's driver.