diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 2f7037c62e88..ae5ba4ddfb40 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c | |||
| @@ -400,6 +400,23 @@ static int ehci_hc_reset (struct usb_hcd *hcd) | |||
| 400 | return -EIO; | 400 | return -EIO; |
| 401 | } | 401 | } |
| 402 | break; | 402 | break; |
| 403 | case PCI_VENDOR_ID_NVIDIA: | ||
| 404 | /* NVidia reports that certain chips don't handle | ||
| 405 | * QH, ITD, or SITD addresses above 2GB. (But TD, | ||
| 406 | * data buffer, and periodic schedule are normal.) | ||
| 407 | */ | ||
| 408 | switch (pdev->device) { | ||
| 409 | case 0x003c: /* MCP04 */ | ||
| 410 | case 0x005b: /* CK804 */ | ||
| 411 | case 0x00d8: /* CK8 */ | ||
| 412 | case 0x00e8: /* CK8S */ | ||
| 413 | if (pci_set_consistent_dma_mask(pdev, | ||
| 414 | DMA_31BIT_MASK) < 0) | ||
| 415 | ehci_warn (ehci, "can't enable NVidia " | ||
| 416 | "workaround for >2GB RAM\n"); | ||
| 417 | break; | ||
| 418 | } | ||
| 419 | break; | ||
| 403 | } | 420 | } |
| 404 | 421 | ||
| 405 | /* optional debug port, normally in the first BAR */ | 422 | /* optional debug port, normally in the first BAR */ |