cfi_wait_ready
error = cfi_wait_ready(sc, sc->sc_wrofs, start,
error = cfi_wait_ready(sc, sc->sc_wrofs + i,
error = cfi_wait_ready(sc, sc->sc_wrofs, start,
error = cfi_wait_ready(sc, CFI_BCS_READ_STATUS, start,
error = cfi_wait_ready(sc, CFI_BCS_READ_STATUS, start,