> maybe not everything ist fixed in AD stepping... we > have observed that on our > Au1500 AD board the internal USB host only works > when we set CONFIG_NONCOHERENT_IO=y. Is this with 2.4 or 2.6? I haven't changed the coherency defaults in 2.4. Which board do you have, Db1500? > without CONFIG_NONCOHERENT_IO=y we get crashes when > the used usb bandwidth > gets higher. for example with an USB ethernet > adapter: ping works but real > traffic makes the kernel crash. usb-storage does not > work at all. > > can you confirm this? Not immediately but hopefully in the next few days. Does usb storage work for you with NONCOHERENT_IO set? > would it be possible to use CONFIG_NONCOHERENT_IO=y > only for USB, and not PCI? Probably not cleanly. > we have PCI cards (prism54) which only work without > CONFIG_NONCOHERENT_IO, so > at the moment we can either have USB host or prism54 > based PCI cards... Pete
