I'm trying to allocate memory from 4GB-8GB range and have modified the memory
structure(QH,iTD etc) to support 64 bit addressing. I am constantly hitting
the following issues and I am not sure about the exact meaning of the error
message(timed out waiting for BIOS).

ehci1: [ITHREAD]
usbus0: waiting for BIOS to give up control
usbus0: timed out waiting for BIOS<---Issue 1) ---what does this error
message mean??
usbus0: EHCI version 1.0
usbus0: run timeout<--Issue 2) ---message is coming from ehci_init function,
EHCI_STS_HCH bit is set in the status register??
ehci1: USB init failed err=18

Following solution has been posted for issue 1 but I couldn't see such
option in the BIOS that I am running on.

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