dmesg output
dfsl-ehci fsl-ehci.1: remove, state 1
fsl-ehci fsl-ehci.1: roothub graceful disconnect
usb usb1: USB disconnect, address 1
usb usb1: unregistering device
usb usb1: usb_disable_device nuking all URBs
fsl-ehci fsl-ehci.1: shutdown urb 8b45d460 ep1in-intr
usb usb1: unregistering interface 1-0:1.0
fsl-ehci fsl-ehci.1: stop
fsl-ehci fsl-ehci.1: reset command 01000a (park)=0 ithresh=1 period=256 Reset HALT
fsl-ehci fsl-ehci.1: irq normal 0 err 512 reclaim 16 (lost 0)
fsl-ehci fsl-ehci.1: complete 16 unlink 0
fsl-ehci fsl-ehci.1: ehci_stop completed status 1000 Halt
fsl-ehci fsl-ehci.1: USB bus 1 deregistered
Freescale USB OTG Driver loaded, $Revision: 1.55 $
j=128569 [fsl_otg_probe] pdev=0x8075aec8
j=128569 [fsl_otg_conf]
j=128580 [usb_otg_start] initial ID pin=1
ARC USBOTG Device Controller driver (1 August 2005)
g_ether gadget: using random self ethernet address
g_ether gadget: using random host ethernet address
usb0: MAC 42:4f:a8:f1:e5:24
usb0: HOST MAC 7e:d4:1b:27:fe:51
g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
g_ether gadget: g_ether ready
Suspend udc for OTG auto detect
j=128595 [fsl_otg_set_peripheral] ID pin=1
USB Gadget resume begins
dr_controller_run: udc out low power mode
USB Gadget resume ends
fsl-usb2-udc: bind to driver g_ether
ID int (ID is 0)
ID int (ID is 1)
b_session_irq_enable

tgsc=0x9202d20
b_session_irq_enable

tgsc=0x1202d20
USB Gadget resume begins
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci_hcd: block sizes: qh 60 qtd 96 itd 160 sitd 96
initializing FSL-SOC USB Controller
fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller
drivers/usb/core/inode.c: creating file 'devices'
drivers/usb/core/inode.c: creating file '001'
fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
fsl-ehci fsl-ehci.0: reset hcs_params 0x10011 dbg=0 ind cc=0 pcc=0 ordered ports=1
fsl-ehci fsl-ehci.0: reset hcc_params 0006 thresh 0 uframes 256/512/1024 park
fsl-ehci fsl-ehci.0: can't setup
fsl-ehci fsl-ehci.0: USB bus 1 deregistered
fsl-ehci fsl-ehci.0: init fsl-ehci.0 fail, -110
fsl-ehci: probe of fsl-ehci.0 failed with error -110
initializing FSL-SOC USB Controller
fsl-ehci fsl-ehci.1: Freescale On-Chip EHCI Host Controller
drivers/usb/core/inode.c: creating file 'devices'
drivers/usb/core/inode.c: creating file '001'
fsl-ehci fsl-ehci.1: new USB bus registered, assigned bus number 1
fsl-ehci fsl-ehci.1: reset hcs_params 0x10011 dbg=0 ind cc=0 pcc=0 ordered ports=1
fsl-ehci fsl-ehci.1: reset hcc_params 0006 thresh 0 uframes 256/512/1024 park
fsl-ehci fsl-ehci.1: park 0
fsl-ehci fsl-ehci.1: reset command 080b02 park=3 ithresh=8 period=1024 Reset HALT
fsl-ehci fsl-ehci.1: ...powerdown ports...
fsl-ehci fsl-ehci.1: supports USB remote wakeup
fsl-ehci fsl-ehci.1: irq 14, io base 0x53f80200
fsl-ehci fsl-ehci.1: reset command 080b02 park=3 ithresh=8 period=1024 Reset HALT
fsl-ehci fsl-ehci.1: init command 010009 (park)=0 ithresh=1 period=256 RUN
fsl-ehci fsl-ehci.1: USB 2.0 started, EHCI 1.00
usb usb1: default language 0x0409
usb usb1: udev 1, busnum 1, minor = 0
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: Freescale On-Chip EHCI Host Controller
usb usb1: Manufacturer: Linux 2.6.35.3-power ehci_hcd
usb usb1: SerialNumber: fsl-ehci.1
usb usb1: usb_probe_device
usb usb1: configuration #1 chosen from 1 choice
usb usb1: adding 1-0:1.0 (config #1, interface 0)
hub 1-0:1.0: usb_probe_interface
hub 1-0:1.0: usb_probe_interface - got id
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
hub 1-0:1.0: standalone hub
hub 1-0:1.0: individual port power switching
hub 1-0:1.0: individual port over-current protection
hub 1-0:1.0: Single TT
hub 1-0:1.0: TT requires at most 8 FS bit times (666 ns)
hub 1-0:1.0: power on to power good time: 20ms
hub 1-0:1.0: local power source is good
hub 1-0:1.0: enabling power on all ports
drivers/usb/core/inode.c: creating file '001'
hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0000
ID int (ID is 0)
ID int (ID is 1)
b_session_irq_enable

tgsc=0x1200d20
b_session_irq_enable

tgsc=0x1200d20
USB Gadget resume begins
ID int (ID is 0)
b_session_irq_enable

tgsc=0x1000c20
udc suspend begins
USB Gadget suspend ends
b_session_irq_enable

tgsc=0x1000c20