diff options
Diffstat (limited to 'sys/dev/usb/controller')
| -rw-r--r-- | sys/dev/usb/controller/xhci_pci.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/sys/dev/usb/controller/xhci_pci.c b/sys/dev/usb/controller/xhci_pci.c index 3d18d34..f0b789a 100644 --- a/sys/dev/usb/controller/xhci_pci.c +++ b/sys/dev/usb/controller/xhci_pci.c @@ -150,6 +150,8 @@ static int xhci_pci_port_route(device_t self, uint32_t set, uint32_t clear) { uint32_t temp; + uint32_t usb3_mask; + uint32_t usb2_mask; temp = pci_read_config(self, PCI_XHCI_INTEL_USB3_PSSEN, 4) | pci_read_config(self, PCI_XHCI_INTEL_XUSB2PR, 4); @@ -158,10 +160,11 @@ xhci_pci_port_route(device_t self, uint32_t set, uint32_t clear) temp &= ~clear; /* Don't set bits which the hardware doesn't support */ - temp &= pci_read_config(self, PCI_XHCI_INTEL_USB3PRM, 4); + usb3_mask = pci_read_config(self, PCI_XHCI_INTEL_USB3PRM, 4); + usb2_mask = pci_read_config(self, PCI_XHCI_INTEL_USB2PRM, 4); - pci_write_config(self, PCI_XHCI_INTEL_USB3_PSSEN, temp, 4); - pci_write_config(self, PCI_XHCI_INTEL_XUSB2PR, temp, 4); + pci_write_config(self, PCI_XHCI_INTEL_USB3_PSSEN, temp & usb3_mask, 4); + pci_write_config(self, PCI_XHCI_INTEL_XUSB2PR, temp & usb2_mask, 4); device_printf(self, "Port routing mask set to 0x%08x\n", temp); |
