NAME
soekrisgpio —
Soekris net6501 GPIO and
LEDs
SYNOPSIS
soekrisgpio0 at isa? port 0x680
gpio* at soekrisgpio?
DESCRIPTION
The
soekrisgpio driver provides support for the GPIO and LEDs
as implemented by the Xilinx Spartan FGPA integrated into the Soekris net6501
programmed with the default bitstream found in the BIOS.
Two standard
gpio(4) interfaces
are provided, one for the 16 real pins which can be configured as either
inputs or outputs and another with 2 output-only pins that map to the error
and ready LEDs respectively. Both may be used with
gpioctl(8).
SEE ALSO
gpio(4),
intro(4),
isa(4),
gpioctl(8)
HISTORY
The
soekrisgpio driver first appeared in
NetBSD 7.0.
AUTHORS
The
soekrisgpio driver was written by
Matt
Dainty <
matt@...> and
imported from a patch for
OpenBSD to
NetBSD by
Frank Kardel
<
kardel@NetBSD.org>.
BUGS
If the Xilinx FPGA is programmed with a different bitstream, the driver will
likely not function.