diff options
| -rw-r--r-- | drivers/usb/host/ehci-pci.c | 53 |
1 files changed, 1 insertions, 52 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 991b199..b9eabc5 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -34,57 +34,6 @@ static struct pci_device_id ehci_pci_ids[] = { {0, 0} }; #else -static pci_dev_t ehci_find_class(int index) -{ - int bus; - int devnum; - pci_dev_t bdf; - uint32_t class; - - for (bus = 0; bus <= pci_last_busno(); bus++) { - for (devnum = 0; devnum < PCI_MAX_PCI_DEVICES-1; devnum++) { - pci_read_config_dword(PCI_BDF(bus, devnum, 0), - PCI_CLASS_REVISION, &class); - if (class >> 16 == 0xffff) - continue; - - for (bdf = PCI_BDF(bus, devnum, 0); - bdf <= PCI_BDF(bus, devnum, - PCI_MAX_PCI_FUNCTIONS - 1); - bdf += PCI_BDF(0, 0, 1)) { - pci_read_config_dword(bdf, PCI_CLASS_REVISION, - &class); - class >>= 8; - /* - * Here be dragons! In case we have multiple - * PCI EHCI controllers, this function will - * be called multiple times as well. This - * function will scan the PCI busses, always - * starting from bus 0, device 0, function 0, - * until it finds an USB controller. The USB - * stack gives us an 'index' of a controller - * that is currently being registered, which - * is a number, starting from 0 and growing - * in ascending order as controllers are added. - * To avoid probing the same controller in tne - * subsequent runs of this function, we will - * skip 'index - 1' detected controllers and - * report the index'th controller. - */ - if (class != PCI_CLASS_SERIAL_USB_EHCI) - continue; - if (index) { - index--; - continue; - } - /* Return index'th controller. */ - return bdf; - } - } - } - - return -ENODEV; -} #endif /* @@ -102,7 +51,7 @@ int ehci_hcd_init(int index, enum usb_init_type init, #ifdef CONFIG_PCI_EHCI_DEVICE pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE); #else - pdev = ehci_find_class(index); + pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index); #endif if (pdev < 0) { printf("EHCI host controller not found\n"); |