Hi Gerd,
>How can this be reproduced? you need to build last uboot with the ehci pci option enabled and the usb command line enabled. or just download my last e500 uboot build from here https://www.dropbox.com/s/xxlu6ivg3izlqvu/u-boot?dl=0 Run it as: qemu-system-ppc64 -M ppce500 -cpu e5500 -m 512 -bios (path to the uboot image) -device usb-ehci (or another qemulated ehci pci device) -serial stdio you can attach some device on it for your tests when the machine run and you have the uboot prompt just do "usb start" and you will see the hang for some second of the machine and after the report from uboot of an error of the ehci. Ciao Luigi
