diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/southbridge/intel/ibexpeak/usb_ehci.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/southbridge/intel/ibexpeak/usb_ehci.c b/src/southbridge/intel/ibexpeak/usb_ehci.c index 21a257f328..868a06843c 100644 --- a/src/southbridge/intel/ibexpeak/usb_ehci.c +++ b/src/southbridge/intel/ibexpeak/usb_ehci.c @@ -30,6 +30,8 @@ static void usb_ehci_init(struct device *dev) { u32 reg32; + struct resource *res; + u8 access_cntl; /* Disable Wake on Disconnect in RMH */ reg32 = RCBA32(0x35b0); @@ -50,6 +52,21 @@ static void usb_ehci_init(struct device *dev) //reg32 |= PCI_COMMAND_SERR; pci_write_config32(dev, PCI_COMMAND, reg32); + access_cntl = pci_read_config8(dev, 0x80); + + /* Enable writes to protected registers. */ + pci_write_config8(dev, 0x80, access_cntl | 1); + + res = find_resource(dev, PCI_BASE_ADDRESS_0); + if (res) { + /* Number of ports and companion controllers. */ + reg32 = read32(res->base + 4); + write32(res->base + 4, (reg32 & 0xfff00000) | 2); + } + + /* Restore protection. */ + pci_write_config8(dev, 0x80, access_cntl); + printk(BIOS_DEBUG, "done.\n"); } |