IDE class PCI. This requires slightly non-standard probe -The MPIIX also differs in another important way from the majority of PIIX

* devices. The chip is a bridge (pardon the pun) between the old world of

* ISA IDE and PCI IDE. Although the ATA timings are PCI configured the actual

* IDE controller is not decoded in PCI space and the chip does not claim to

* be IDE class PCI. This requires slightly non-standard probe logic compared

* with PCI IDE and also that we do not disable the device when our driver is

* unloaded (as it has many other functions).