void bsp_start( void ) { CPU_SPARC_HAS_SNOOPING = set_snooping(); }
static int fsl_ehci_attach(device_t self) { ehci_softc_t *sc; int rid; int err; bus_space_handle_t ioh; bus_space_tag_t iot; sc = device_get_softc(self); rid = 0; sc->sc_bus.parent = self; sc->sc_bus.devices = sc->sc_devices; sc->sc_bus.devices_max = EHCI_MAX_DEVICES; if (usb_bus_mem_alloc_all(&sc->sc_bus, USB_GET_DMA_TAG(self), &ehci_iterate_hw_softc)) return (ENOMEM); /* Allocate io resource for EHCI */ sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, RF_ACTIVE); if (sc->sc_io_res == NULL) { err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } iot = rman_get_bustag(sc->sc_io_res); /* * Set handle to USB related registers subregion used by generic * EHCI driver */ ioh = rman_get_bushandle(sc->sc_io_res); err = bus_space_subregion(iot, ioh, FSL_EHCI_REG_OFF, FSL_EHCI_REG_SIZE, &sc->sc_io_hdl); if (err != 0) { err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } /* Set little-endian tag for use by the generic EHCI driver */ sc->sc_io_tag = &bs_le_tag; /* Allocate irq */ sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid, RF_ACTIVE); if (sc->sc_irq_res == NULL) { err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } /* Setup interrupt handler */ err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO, NULL, (driver_intr_t *)ehci_interrupt, sc, &sc->sc_intr_hdl); if (err) { device_printf(self, "Could not setup irq, %d\n", err); sc->sc_intr_hdl = NULL; err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } /* Add USB device */ sc->sc_bus.bdev = device_add_child(self, "usbus", -1); if (!sc->sc_bus.bdev) { device_printf(self, "Could not add USB device\n"); err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENOMEM); } device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); sc->sc_id_vendor = 0x1234; strlcpy(sc->sc_vendor, "Freescale", sizeof(sc->sc_vendor)); /* Enable USB */ err = ehci_reset(sc); if (err) { device_printf(self, "Could not reset the controller\n"); err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (ENXIO); } enable_usb(self, iot, ioh); set_snooping(iot, ioh); set_to_host_mode(sc); set_32b_prefetch(iot, ioh); /* * If usb subsystem is enabled in U-Boot, port power has to be turned * off to allow proper discovery of devices during boot up. */ clear_port_power(sc); /* Set flags */ sc->sc_flags |= EHCI_SCFLG_DONTRESET | EHCI_SCFLG_NORESTERM; err = ehci_init(sc); if (!err) { sc->sc_flags |= EHCI_SCFLG_DONEINIT; err = device_probe_and_attach(sc->sc_bus.bdev); } if (err) { device_printf(self, "USB init failed err=%d\n", err); err = fsl_ehci_detach(self); if (err) { device_printf(self, "Detach of the driver failed with error %d\n", err); } return (EIO); } return (0); }