BCR
BSR = BCR,
case BCR:
pci_bus_read_config_dword(bus, devfn, BCR, &bcr);
pci_bus_write_config_dword(bus, devfn, BCR, bcr);
pci_bus_read_config_dword(bus, devfn, BCR, &bcr);
iowrite32(0x00000001, ioaddr + BCR);
ioread32(ioaddr + BCR);
iowrite32(np->bcrvalue, ioaddr + BCR);
iowrite32(0x00000001, ioaddr + BCR);
iowrite32(0x00000001, ioaddr + BCR); /* Reset */
iowrite32(np->bcrvalue, ioaddr + BCR);
u8 device, class_code, header_type, BCR;
rc = pci_bus_read_config_byte(pci_bus, devfn, PCI_BRIDGE_CONTROL, &BCR);
if (BCR & PCI_BRIDGE_CTL_VGA)
pci_read_config_dword(pdev, BCR, &bcr);
pci_write_config_dword(pdev, BCR, bcr);
pci_read_config_dword(pdev, BCR, &bcr);