EHCI_USBINTR
EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
EOWRITE2(&sc->sc_ehci, EHCI_USBINTR, 0);
EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs);
EOREAD4(sc, EHCI_USBINTR));
EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs);
EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs);