diff options
-rw-r--r-- | drivers/usb/host/ehci-pci.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 9d0ea573aef6..36864f958444 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c | |||
@@ -169,18 +169,21 @@ static int ehci_pci_setup(struct usb_hcd *hcd) | |||
169 | } | 169 | } |
170 | break; | 170 | break; |
171 | case PCI_VENDOR_ID_ATI: | 171 | case PCI_VENDOR_ID_ATI: |
172 | /* SB700 old version has a bug in EHCI controller, | 172 | /* SB600 and old version of SB700 have a bug in EHCI controller, |
173 | * which causes usb devices lose response in some cases. | 173 | * which causes usb devices lose response in some cases. |
174 | */ | 174 | */ |
175 | if (pdev->device == 0x4396) { | 175 | if ((pdev->device == 0x4386) || (pdev->device == 0x4396)) { |
176 | p_smbus = pci_get_device(PCI_VENDOR_ID_ATI, | 176 | p_smbus = pci_get_device(PCI_VENDOR_ID_ATI, |
177 | PCI_DEVICE_ID_ATI_SBX00_SMBUS, | 177 | PCI_DEVICE_ID_ATI_SBX00_SMBUS, |
178 | NULL); | 178 | NULL); |
179 | if (!p_smbus) | 179 | if (!p_smbus) |
180 | break; | 180 | break; |
181 | rev = p_smbus->revision; | 181 | rev = p_smbus->revision; |
182 | if ((rev == 0x3a) || (rev == 0x3b)) { | 182 | if ((pdev->device == 0x4386) || (rev == 0x3a) |
183 | || (rev == 0x3b)) { | ||
183 | u8 tmp; | 184 | u8 tmp; |
185 | ehci_info(ehci, "applying AMD SB600/SB700 USB " | ||
186 | "freeze workaround\n"); | ||
184 | pci_read_config_byte(pdev, 0x53, &tmp); | 187 | pci_read_config_byte(pdev, 0x53, &tmp); |
185 | pci_write_config_byte(pdev, 0x53, tmp | (1<<3)); | 188 | pci_write_config_byte(pdev, 0x53, tmp | (1<<3)); |
186 | } | 189 | } |