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.