49 static struct cns3xxx_pcie *pbus_to_cnspci(struct pci_bus *bus)  in pbus_to_cnspci()  argument
51 	return sysdata_to_cnspci(bus->sysdata);  in pbus_to_cnspci()
54 static void __iomem *cns3xxx_pci_map_bus(struct pci_bus *bus,  in cns3xxx_pci_map_bus()  argument
57 	struct cns3xxx_pcie *cnspci = pbus_to_cnspci(bus);  in cns3xxx_pci_map_bus()
58 	int busno = bus->number;  in cns3xxx_pci_map_bus()
88 static int cns3xxx_pci_read_config(struct pci_bus *bus, unsigned int devfn,  in cns3xxx_pci_read_config()  argument
95 	ret = pci_generic_config_read32(bus, devfn, where, size, val);  in cns3xxx_pci_read_config()
97 	if (ret == PCIBIOS_SUCCESSFUL && !bus->number && !devfn &&  in cns3xxx_pci_read_config()
133 	int irq = cnspci->irqs[!!dev->bus->number];  in cns3xxx_pcie_map_irq()
136 		pci_domain_nr(dev->bus), dev->bus->number, PCI_SLOT(dev->devfn),  in cns3xxx_pcie_map_irq()
220 	struct pci_bus bus = {  in cns3xxx_pcie_hw_init()  local
234 	pci_bus_write_config_byte(&bus, devfn, PCI_PRIMARY_BUS, 0);  in cns3xxx_pcie_hw_init()
235 	pci_bus_write_config_byte(&bus, devfn, PCI_SECONDARY_BUS, 1);  in cns3xxx_pcie_hw_init()
236 	pci_bus_write_config_byte(&bus, devfn, PCI_SUBORDINATE_BUS, 1);  in cns3xxx_pcie_hw_init()
238 	pci_bus_read_config_byte(&bus, devfn, PCI_PRIMARY_BUS, &tmp8);  in cns3xxx_pcie_hw_init()
239 	pci_bus_read_config_byte(&bus, devfn, PCI_SECONDARY_BUS, &tmp8);  in cns3xxx_pcie_hw_init()
240 	pci_bus_read_config_byte(&bus, devfn, PCI_SUBORDINATE_BUS, &tmp8);  in cns3xxx_pcie_hw_init()
242 	pci_bus_write_config_word(&bus, devfn, PCI_MEMORY_BASE, mem_base);  in cns3xxx_pcie_hw_init()
243 	pci_bus_write_config_word(&bus, devfn, PCI_MEMORY_LIMIT, mem_limit);  in cns3xxx_pcie_hw_init()
244 	pci_bus_write_config_word(&bus, devfn, PCI_IO_BASE_UPPER16, io_base);  in cns3xxx_pcie_hw_init()
245 	pci_bus_write_config_word(&bus, devfn, PCI_IO_LIMIT_UPPER16, io_limit);  in cns3xxx_pcie_hw_init()
251 	bus.number = 1; /* directly connected PCIe device */  in cns3xxx_pcie_hw_init()
253 	pos = pci_bus_find_capability(&bus, devfn, PCI_CAP_ID_EXP);  in cns3xxx_pcie_hw_init()
254 	pci_bus_read_config_word(&bus, devfn, pos + PCI_EXP_DEVCTL, &dc);  in cns3xxx_pcie_hw_init()
257 		pci_bus_write_config_word(&bus, devfn, pos + PCI_EXP_DEVCTL, dc);  in cns3xxx_pcie_hw_init()
258 		pci_bus_read_config_word(&bus, devfn, pos + PCI_EXP_DEVCTL, &dc);  in cns3xxx_pcie_hw_init()