X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Fx86%2Fcpu%2Fpci.c;h=c9c7637fa7d761f8a8e2da8d686510e9a8d81c6c;hb=d90384e834a551ef7b69b05f3be1bd103af87d38;hp=e23b233961cec277154b22941565990af7c87cab;hpb=a219daeafef4df1b219db68c80116d82113c82b2;p=u-boot diff --git a/arch/x86/cpu/pci.c b/arch/x86/cpu/pci.c index e23b233961..c9c7637fa7 100644 --- a/arch/x86/cpu/pci.c +++ b/arch/x86/cpu/pci.c @@ -19,101 +19,6 @@ DECLARE_GLOBAL_DATA_PTR; -static struct pci_controller x86_hose; - -int pci_early_init_hose(struct pci_controller **hosep) -{ - struct pci_controller *hose; - - hose = calloc(1, sizeof(struct pci_controller)); - if (!hose) - return -ENOMEM; - - board_pci_setup_hose(hose); - pci_setup_type1(hose); - hose->last_busno = pci_hose_scan(hose); - gd->hose = hose; - *hosep = hose; - - return 0; -} - -__weak int board_pci_pre_scan(struct pci_controller *hose) -{ - return 0; -} - -__weak int board_pci_post_scan(struct pci_controller *hose) -{ - return 0; -} - -void pci_init_board(void) -{ - struct pci_controller *hose = &x86_hose; - - /* Stop using the early hose */ - gd->hose = NULL; - - board_pci_setup_hose(hose); - pci_setup_type1(hose); - pci_register_hose(hose); - - board_pci_pre_scan(hose); - hose->last_busno = pci_hose_scan(hose); - board_pci_post_scan(hose); -} - -static struct pci_controller *get_hose(void) -{ - if (gd->hose) - return gd->hose; - - return pci_bus_to_hose(0); -} - -unsigned int x86_pci_read_config8(pci_dev_t dev, unsigned where) -{ - uint8_t value; - - pci_hose_read_config_byte(get_hose(), dev, where, &value); - - return value; -} - -unsigned int x86_pci_read_config16(pci_dev_t dev, unsigned where) -{ - uint16_t value; - - pci_hose_read_config_word(get_hose(), dev, where, &value); - - return value; -} - -unsigned int x86_pci_read_config32(pci_dev_t dev, unsigned where) -{ - uint32_t value; - - pci_hose_read_config_dword(get_hose(), dev, where, &value); - - return value; -} - -void x86_pci_write_config8(pci_dev_t dev, unsigned where, unsigned value) -{ - pci_hose_write_config_byte(get_hose(), dev, where, value); -} - -void x86_pci_write_config16(pci_dev_t dev, unsigned where, unsigned value) -{ - pci_hose_write_config_word(get_hose(), dev, where, value); -} - -void x86_pci_write_config32(pci_dev_t dev, unsigned where, unsigned value) -{ - pci_hose_write_config_dword(get_hose(), dev, where, value); -} - int pci_x86_read_config(struct udevice *bus, pci_dev_t bdf, uint offset, ulong *valuep, enum pci_size_t size) { @@ -151,3 +56,33 @@ int pci_x86_write_config(struct udevice *bus, pci_dev_t bdf, uint offset, return 0; } + +void pci_assign_irqs(int bus, int device, u8 irq[4]) +{ + pci_dev_t bdf; + int func; + u16 vendor; + u8 pin, line; + + for (func = 0; func < 8; func++) { + bdf = PCI_BDF(bus, device, func); + pci_read_config16(bdf, PCI_VENDOR_ID, &vendor); + if (vendor == 0xffff || vendor == 0x0000) + continue; + + pci_read_config8(bdf, PCI_INTERRUPT_PIN, &pin); + + /* PCI spec says all values except 1..4 are reserved */ + if ((pin < 1) || (pin > 4)) + continue; + + line = irq[pin - 1]; + if (!line) + continue; + + debug("Assigning IRQ %d to PCI device %d.%x.%d (INT%c)\n", + line, bus, device, func, 'A' + pin - 1); + + pci_write_config8(bdf, PCI_INTERRUPT_LINE, line); + } +}