EREAD4
cparams = EREAD4(sc, EHCI_HCCPARAMS);
sc->sc_offs = EHCI_CAPLENGTH(EREAD4(sc, EHCI_CAPLEN_HCIVERSION));
version = EHCI_HCIVERSION(EREAD4(sc, EHCI_CAPLEN_HCIVERSION));
sparams = EREAD4(sc, EHCI_HCSPARAMS);
v = EREAD4(sc, EHCI_HCSPARAMS);
cause = EREAD4(sc, USB_BRIDGE_INTR_CAUSE);
addr = EREAD4(sc, USB_BRIDGE_ERR_ADDR);
cparams = EREAD4(sc, EHCI_HCCPARAMS);