[U-Boot] EHCI timed out on TD - token=0x80008c80

[Rao, Ravi]

Hi All,
  Our target is QORIQ P2040 based
  Uboot is based on 2013.01

Our custom board has a compact flash connected to USB via cypress USB to IDE bridge. When I run the usb start every other attempt I get EHCI timeout.
Any idea what may be the cause for this ??

Below are the dumps. Please let me know if you need more info

U-Boot 2013.01 (Jul 08 2013 - 16:36:11)

=> usb start
(Re)start USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... EHCI timed out on TD - token=0x80008c80
1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
=> usb start
(Re)start USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
=> usb start
(Re)start USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... EHCI timed out on TD - token=0x80008c80
1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
=> usb start
(Re)start USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
=> usb start
(Re)start USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... EHCI timed out on TD - token=0x80008c80
1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
=> usb start
(Re)start USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
=> usb start
(Re)start USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... EHCI timed out on TD - token=0x80008c80
1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found
=> usb storage
No storage devices, perhaps not 'usb start'ed..?
=> usb storage
No storage devices, perhaps not 'usb start'ed..?
=> usb start
(Re)start USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 2 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
=> usb storage
  Device 0: Vendor: SanDisk  Rev: 0000 Prod: SDCFH-002G
            Type: Removable Hard Disk
            Capacity: 1907.5 MB = 1.8 GB (3906560 x 512)
=> usb info
1: Hub,  USB Revision 2.0
- u-boot EHCI Host Controller
 - Class: Hub
- PacketSize: 64  Configurations: 1
- Vendor: 0x0000  Product 0x0000 Version 1.0
   Configuration: 1
   - Interfaces: 1 Self Powered 0mA
     Interface: 0
     - Alternate Setting 0, Endpoints: 1
     - Class Hub
     - Endpoint 1 In Interrupt MaxPacket 2048 Interval 255ms

2: Mass Storage,  USB Revision 2.0
- Cypress Semiconductor EZ-USB AT2LP 0123456789AB
- Class: (from Interface) Mass Storage
- PacketSize: 64  Configurations: 1
- Vendor: 0x04b4  Product 0x6830 Version 2.64
   Configuration: 1
   - Interfaces: 1 Self Powered 0mA
     Interface: 0
     - Alternate Setting 0, Endpoints: 2
     - Class Mass Storage, Transp. SCSI, Bulk only
     - Endpoint 2 Out Bulk MaxPacket 512
     - Endpoint 6 In Bulk MaxPacket 512
     - Endpoint 1 In Interrupt MaxPacket 4 Interval 10ms

Thanks & Regards,
Ravi..