NAME
gcscpcib —
AMD CS553[56] PCI-ISA bridge
with timecounter, watchdog timer, and GPIO
SYNOPSIS
gcscpcib* at pci? dev ? function ?
gpio* at gcscpcib?
isa* at gcscpcib?
DESCRIPTION
The
gcscpcib driver provides support for the AMD Geode CS5535
and CS5536 Companion chip. This device contains a number of components,
including a PCI-ISA bridge. Besides the core functionality, the
gcscpcib driver implements a 32-bit 3.5 MHz timecounter, a
watchdog timer device, and a GPIO device. The watchdog timer may be configured
via the
wdogctl(8) utility
and the GPIO pins can be manipulated via the
gpioctl(8) utility.
SEE ALSO
gpio(4),
i386/intro(4),
isa(4),
pci(4),
pcib(4),
gpioctl(8),
wdogctl(8)
HISTORY
The
gcscpcib driver first appeared in
OpenBSD
4.3 as
glxpcib before being ported to
NetBSD 5.0.
AUTHORS
The
gcscpcib driver was written by
Michael
Shalayeff and
Yojiro UO. The GPIO parts were
added by
Marc Balmer
<
marc@msys.ch>.