ICH_PMBASE
#define ICH_SMI_EN ICH_PMBASE + 0x30
acpi_base = pci_read_config(pmdev, ICH_PMBASE, 4) & 0xffffff00;
pmbase = pci_read_config(ich, ICH_PMBASE, 2) & ICH_PMBASE_MASK;
#define ICH_SMI_EN ICH_PMBASE + 0x30