diff options
Diffstat (limited to 'src/drivers/usb/pci_ehci.c')
| -rw-r--r-- | src/drivers/usb/pci_ehci.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/drivers/usb/pci_ehci.c b/src/drivers/usb/pci_ehci.c index 8b72f57a5a..9099976ad5 100644 --- a/src/drivers/usb/pci_ehci.c +++ b/src/drivers/usb/pci_ehci.c @@ -33,13 +33,17 @@ static struct device_operations ehci_dbg_ops; int ehci_debug_hw_enable(unsigned int *base, unsigned int *dbg_offset) { pci_devfn_t dbg_dev = pci_ehci_dbg_dev(CONFIG_USBDEBUG_HCD_INDEX); - pci_ehci_dbg_enable(dbg_dev, CONFIG_EHCI_BAR); + #ifdef __SIMPLE_DEVICE__ pci_devfn_t dev = dbg_dev; #else device_t dev = dev_find_slot(PCI_DEV2SEGBUS(dbg_dev), PCI_DEV2DEVFN(dbg_dev)); #endif + u32 class = pci_read_config32(dev, PCI_CLASS_REVISION) >> 8; + if (class != PCI_EHCI_CLASSCODE) + return -1; + u8 pos = pci_find_capability(dev, PCI_CAP_ID_EHCI_DEBUG); if (!pos) return -1; |