Problem in EHCI controller Driver and NEC D720100 chip set

Hi,
   I am working on NEC D720100 chip set and I configured the EHCI, OHCI
controller drivers in the kernel 2.6.11. When the kernel boots,  it gave the
following error on the EHCI controller.

ehci_hcd 0000:00:11.2: Unlink after no-IRQ?  Controller is probably using
the wrong IRQ.
For OHCI controllers, it gave the following error.

ohci_hcd 0000:00:11.1: bogus NDP=255, rereads as NDP=255
ohci_hcd 0000:00:11.0: bogus NDP=255, rereads as NDP=255

I do not know that what is the problem. Please give ur suggestions to solve
this problem.

Thanks
  -N.Balaji