[meta-xilinx] zedboard usb issues

[Simon Vincent]

I have build a zedboard image using the latest xilinx-yocto but I am 
having problems with the usb.

I find that 50% of the time I get an error initialising the usb phy:
root at zedboard-zynq7:~# dmesg|grep -i usb
[    0.562406] usbcore: registered new interface driver usbfs
[    0.568243] usbcore: registered new interface driver hub
[    0.573986] usbcore: registered new device driver usb
[    1.314762] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.329453] zynq-dr e0002000.ps7-usb: Unable to init USB phy, missing?
[    1.336866] usbcore: registered new interface driver usb-storage
[    1.461775] usbcore: registered new interface driver usbhid
[    1.469402] usbhid: USB HID core driver

The rest of the time I get the following but no usb devices are recognised:

root at zedboard-zynq7:~# dmesg|grep -i usb
[    0.562418] usbcore: registered new interface driver usbfs
[    0.568255] usbcore: registered new interface driver hub
[    0.573981] usbcore: registered new device driver usb
[    1.314193] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.331922] Found TI TUSB1210 ULPI transceiver.
[    1.341299] zynq-ehci zynq-ehci.0: Xilinx Zynq USB EHCI Host Controller
[    1.348773] zynq-ehci zynq-ehci.0: new USB bus registered, assigned 
bus number 1
[    1.405684] zynq-ehci zynq-ehci.0: USB 2.0 started, EHCI 1.00
[    1.418015] hub 1-0:1.0: USB hub found
[    1.429784] usbcore: registered new interface driver usb-storage
[    1.560122] usbcore: registered new interface driver usbhid
[    1.567687] usbhid: USB HID core driver

If I boot using the sdcard image that came with the zedboard the USB 
works every time and recognises usb devices.

Has anyone else had problems with this?

Thanks

Simon