I've got a Asus P4P8x motheboard with the ICH5 chipset runing 5.1-r-p10.
The USB2 controller is properly detected at boot (as a generic 2.0
controller) but any attempts at using a USB 2.0 device fail and the port
locks. If the ehci device is disabled, USB 1 access works properly and
dismally slow. If there is any other debugging I can do to assist, I'm
happy to try to help.
uhci0: Intel 82801EB (ICH5) USB controller USB-A port 0xef00-0xef1f irq 10 at device
29.0 on pci0
usb0: Intel 82801EB (ICH5) USB controller USB-A on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: Intel 82801EB (ICH5) USB controller USB-B port 0xef20-0xef3f irq 5 at device
29.1 on pci0
usb1: Intel 82801EB (ICH5) USB controller USB-B on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2: Intel 82801EB (ICH5) USB controller USB-C port 0xef40-0xef5f irq 5 at device
29.2 on pci0
usb2: Intel 82801EB (ICH5) USB controller USB-C on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
uhci3: Intel 82801EB (ICH5) USB controller USB-D port 0xef80-0xef9f irq 10 at device
29.3 on pci0
usb3: Intel 82801EB (ICH5) USB controller USB-D on uhci3
usb3: USB revision 1.0
uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
ehci0: EHCI (generic) USB 2.0 controller mem 0xfebffc00-0xfebf irq 11 at device
29.7 on pci0
ehci_pci_attach: companion usb0
ehci_pci_attach: companion usb1
ehci_pci_attach: companion usb2
ehci_pci_attach: companion usb3
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: EHCI (generic) USB 2.0 controller on ehci0
usb4: USB revision 2.0
uhub4: (0x8086) EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: 8 ports with 8 removable, self powered
usb4: unrecoverable error, controller halted
usb4: blocking intrs 0x10
uhub4: device problem, disabling port 1
usb4: port reset timeout
uhub4: port 1 reset failed
usb0: Intel 82801EB (ICH5) USB controller USB-A on uhci0
usb0: USB revision 1.0
usb1: Intel 82801EB (ICH5) USB controller USB-B on uhci1
usb1: USB revision 1.0
usb2: Intel 82801EB (ICH5) USB controller USB-C on uhci2
usb2: USB revision 1.0
usb3: Intel 82801EB (ICH5) USB controller USB-D on uhci3
usb3: USB revision 1.0
ehci_pci_attach: companion usb0
ehci_pci_attach: companion usb1
ehci_pci_attach: companion usb2
ehci_pci_attach: companion usb3
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: Intel 82801EB (ICH5) USB 2.0 controller on ehci0
usb4: USB revision 2.0
usb4: unrecoverable error, controller halted
usb4: blocking intrs 0x10
usb0: Intel 82801EB (ICH5) USB controller USB-A on uhci0
usb0: USB revision 1.0
usb1: Intel 82801EB (ICH5) USB controller USB-B on uhci1
usb1: USB revision 1.0
usb2: Intel 82801EB (ICH5) USB controller USB-C on uhci2
usb2: USB revision 1.0
usb3: Intel 82801EB (ICH5) USB controller USB-D on uhci3
usb3: USB revision 1.0
ehci_pci_attach: companion usb0
ehci_pci_attach: companion usb1
ehci_pci_attach: companion usb2
ehci_pci_attach: companion usb3
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: EHCI (generic) USB 2.0 controller on ehci0
usb4: USB revision 2.0
usb4: unrecoverable error, controller halted
usb4: blocking intrs 0x10
usb4: port reset timeout
usb0: Intel 82801EB (ICH5) USB controller USB-A on uhci0
usb0: USB revision 1.0
usb1: Intel 82801EB (ICH5) USB controller USB-B on uhci1
usb1: USB revision 1.0
usb2: Intel 82801EB (ICH5) USB controller USB-C on uhci2
usb2: USB revision 1.0
usb3: Intel 82801EB (ICH5) USB controller USB-D on uhci3
usb3: USB revision 1.0
ehci_pci_attach: companion usb0
ehci_pci_attach: companion usb1
ehci_pci_attach: companion usb2
ehci_pci_attach: companion usb3
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: EHCI (generic) USB 2.0 controller on ehci0
usb4: USB revision 2.0
usb4: unrecoverable error, controller halted
usb4: blocking intrs 0x10
usb4: port reset timeout
bash-2.05b$ dmesg | grep usb
usb0: Intel 82801EB (ICH5) USB controller USB-A on uhci0
usb0: USB revision 1.0
usb1: Intel 82801EB (ICH5) USB controller USB-B on uhci1
usb1: USB revision 1.0
usb2: Intel 82801EB (ICH5) USB controller USB-C on uhci2
usb2: USB revision 1.0
usb3: Intel 82801EB (ICH5) USB controller USB-D on uhci3
usb3: USB revision 1.0
ehci_pci_attach: companion usb0
ehci_pci_attach: companion usb1
ehci_pci_attach: companion usb2
ehci_pci_attach: companion usb3
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: Intel 82801EB (ICH5) USB 2.0 controller on ehci0
usb4: USB revision 2.0
usb4: unrecoverable error, controller halted
usb4: blocking intrs 0x10
usb0: Intel 82801EB