diff options
Diffstat (limited to 'src/southbridge/intel/lynxpoint/usb_xhci.c')
| -rw-r--r-- | src/southbridge/intel/lynxpoint/usb_xhci.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/src/southbridge/intel/lynxpoint/usb_xhci.c b/src/southbridge/intel/lynxpoint/usb_xhci.c index d4611a77dbad..ce851a300942 100644 --- a/src/southbridge/intel/lynxpoint/usb_xhci.c +++ b/src/southbridge/intel/lynxpoint/usb_xhci.c @@ -28,18 +28,19 @@ static u8 *usb_xhci_mem_base(struct device *dev) return (u8 *)(mem_base & ~0xf); } -#ifdef __SIMPLE_DEVICE__ -static int usb_xhci_port_count_usb3(pci_devfn_t dev) -#else -static int usb_xhci_port_count_usb3(struct device *dev) -#endif +static int usb_xhci_port_count_usb3(u8 *mem_base) { + if (!mem_base) { + /* Do not proceed if BAR is invalid */ + return 0; + } + if (pch_is_lp()) { /* LynxPoint-LP has 4 SS ports */ return 4; } - /* LynxPoint-H can have 0, 2, 4, or 6 SS ports */ - u8 *mem_base = usb_xhci_mem_base(dev); + + /* LynxPoint-H can have 0, 2, 4, or 6 SS ports */ u32 fus = read32(mem_base + XHCI_USB3FUS); fus >>= XHCI_USB3FUS_SS_SHIFT; fus &= XHCI_USB3FUS_SS_MASK; @@ -87,10 +88,10 @@ static void usb_xhci_reset_usb3(struct device *dev, int all) { u32 status, port_disabled; int timeout, port; - int port_count = usb_xhci_port_count_usb3(dev); u8 *mem_base = usb_xhci_mem_base(dev); + int port_count = usb_xhci_port_count_usb3(mem_base); - if (!mem_base || !port_count) + if (!port_count) return; /* Get mask of disabled ports */ |