PCI_CSE_PORT
old = inb(PCI_CSE_PORT);
outb(PCI_CSE_PORT,
outb(PCI_CSE_PORT, oldstatus);
oldstatus = inb(PCI_CSE_PORT);
outb(PCI_CSE_PORT, PCI_MECH2_CONFIG_ENABLE);
outb(PCI_CSE_PORT, oldstatus);
outb(PCI_CSE_PORT, oldstatus);