Re: [Qemu-ppc] [Qemu-devel] ppce500 usb-ehci-pci issue on last uboot

[Gerd Hoffmann]

  Hi,

> "actually, I tried it yesterday and it seems to be a bug in qemu in
> case you reset the EHCI controller, it doesn't come out of reset for
> whatever reason ... so you probably want to talk to the qemu guys,
> it's when U-Boot sets USBCMD RESET bit and then does handshake, the
> controller is stuck with reset bit asserted"
> 
> 
> i ask if possible to fix it?

Nothing obvious in the ehci reset code.  Needs someone debugging it ...

Is this on a bigendian host?  If so this could be endian bugs in the
ehci emulation.

You could also try xhci or ohci instead, these are known-working on
bigendian hosts (used by ppc64 pseries).

cheers,
  Gerd