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
Thegcscpcib 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>.