diff options
Diffstat (limited to 'drivers/usb/host/pci-quirks.c')
| -rw-r--r-- | drivers/usb/host/pci-quirks.c | 64 |
1 files changed, 40 insertions, 24 deletions
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index dd483c13565b..f9400564cb72 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -567,7 +567,8 @@ static void quirk_usb_handoff_ohci(struct pci_dev *pdev) { void __iomem *base; u32 control; - u32 fminterval; + u32 fminterval = 0; + bool no_fminterval = false; int cnt; if (!mmio_resource_enabled(pdev, 0)) @@ -577,6 +578,13 @@ static void quirk_usb_handoff_ohci(struct pci_dev *pdev) if (base == NULL) return; + /* + * ULi M5237 OHCI controller locks the whole system when accessing + * the OHCI_FMINTERVAL offset. + */ + if (pdev->vendor == PCI_VENDOR_ID_AL && pdev->device == 0x5237) + no_fminterval = true; + control = readl(base + OHCI_CONTROL); /* On PA-RISC, PDC can leave IR set incorrectly; ignore it there. */ @@ -595,9 +603,9 @@ static void quirk_usb_handoff_ohci(struct pci_dev *pdev) msleep(10); } if (wait_time <= 0) - dev_warn(&pdev->dev, "OHCI: BIOS handoff failed" - " (BIOS bug?) %08x\n", - readl(base + OHCI_CONTROL)); + dev_warn(&pdev->dev, + "OHCI: BIOS handoff failed (BIOS bug?) %08x\n", + readl(base + OHCI_CONTROL)); } #endif @@ -615,7 +623,9 @@ static void quirk_usb_handoff_ohci(struct pci_dev *pdev) } /* software reset of the controller, preserving HcFmInterval */ - fminterval = readl(base + OHCI_FMINTERVAL); + if (!no_fminterval) + fminterval = readl(base + OHCI_FMINTERVAL); + writel(OHCI_HCR, base + OHCI_CMDSTATUS); /* reset requires max 10 us delay */ @@ -624,7 +634,9 @@ static void quirk_usb_handoff_ohci(struct pci_dev *pdev) break; udelay(1); } - writel(fminterval, base + OHCI_FMINTERVAL); + + if (!no_fminterval) + writel(fminterval, base + OHCI_FMINTERVAL); /* Now the controller is safely in SUSPEND and nothing can wake it up */ iounmap(base); @@ -721,8 +733,9 @@ static void ehci_bios_handoff(struct pci_dev *pdev, * and hope nothing goes too wrong */ if (try_handoff) - dev_warn(&pdev->dev, "EHCI: BIOS handoff failed" - " (BIOS bug?) %08x\n", cap); + dev_warn(&pdev->dev, + "EHCI: BIOS handoff failed (BIOS bug?) %08x\n", + cap); pci_write_config_byte(pdev, offset + 2, 0); } @@ -769,8 +782,9 @@ static void quirk_usb_disable_ehci(struct pci_dev *pdev) case 0: /* Illegal reserved cap, set cap=0 so we exit */ cap = 0; /* then fallthrough... */ default: - dev_warn(&pdev->dev, "EHCI: unrecognized capability " - "%02x\n", cap & 0xff); + dev_warn(&pdev->dev, + "EHCI: unrecognized capability %02x\n", + cap & 0xff); } offset = (cap >> 8) & 0xff; } @@ -881,8 +895,7 @@ void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev) */ if (!IS_ENABLED(CONFIG_USB_XHCI_HCD)) { dev_warn(&xhci_pdev->dev, - "CONFIG_USB_XHCI_HCD is turned off, " - "defaulting to EHCI.\n"); + "CONFIG_USB_XHCI_HCD is turned off, defaulting to EHCI.\n"); dev_warn(&xhci_pdev->dev, "USB 3.0 devices will work at USB 2.0 speeds.\n"); usb_disable_xhci_ports(xhci_pdev); @@ -907,8 +920,9 @@ void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev) pci_read_config_dword(xhci_pdev, USB_INTEL_USB3_PSSEN, &ports_available); - dev_dbg(&xhci_pdev->dev, "USB 3.0 ports that are now enabled " - "under xHCI: 0x%x\n", ports_available); + dev_dbg(&xhci_pdev->dev, + "USB 3.0 ports that are now enabled under xHCI: 0x%x\n", + ports_available); /* Read XUSB2PRM, xHCI USB 2.0 Port Routing Mask Register * Indicate the USB 2.0 ports to be controlled by the xHCI host. @@ -929,8 +943,9 @@ void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev) pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR, &ports_available); - dev_dbg(&xhci_pdev->dev, "USB 2.0 ports that are now switched over " - "to xHCI: 0x%x\n", ports_available); + dev_dbg(&xhci_pdev->dev, + "USB 2.0 ports that are now switched over to xHCI: 0x%x\n", + ports_available); } EXPORT_SYMBOL_GPL(usb_enable_intel_xhci_ports); @@ -998,8 +1013,9 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev) /* Assume a buggy BIOS and take HC ownership anyway */ if (timeout) { - dev_warn(&pdev->dev, "xHCI BIOS handoff failed" - " (BIOS bug ?) %08x\n", val); + dev_warn(&pdev->dev, + "xHCI BIOS handoff failed (BIOS bug ?) %08x\n", + val); writel(val & ~XHCI_HC_BIOS_OWNED, base + ext_cap_offset); } } @@ -1027,8 +1043,8 @@ hc_init: if (timeout) { val = readl(op_reg_base + XHCI_STS_OFFSET); dev_warn(&pdev->dev, - "xHCI HW not ready after 5 sec (HC bug?) " - "status = 0x%x\n", val); + "xHCI HW not ready after 5 sec (HC bug?) status = 0x%x\n", + val); } /* Send the halt and disable interrupts command */ @@ -1042,8 +1058,8 @@ hc_init: if (timeout) { val = readl(op_reg_base + XHCI_STS_OFFSET); dev_warn(&pdev->dev, - "xHCI HW did not halt within %d usec " - "status = 0x%x\n", XHCI_MAX_HALT_USEC, val); + "xHCI HW did not halt within %d usec status = 0x%x\n", + XHCI_MAX_HALT_USEC, val); } iounmap(base); @@ -1063,8 +1079,8 @@ static void quirk_usb_early_handoff(struct pci_dev *pdev) return; if (pci_enable_device(pdev) < 0) { - dev_warn(&pdev->dev, "Can't enable PCI device, " - "BIOS handoff failed.\n"); + dev_warn(&pdev->dev, + "Can't enable PCI device, BIOS handoff failed.\n"); return; } if (pdev->class == PCI_CLASS_SERIAL_USB_UHCI) |