1 /*- 2 * Copyright (c) 2006 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #define __RMAN_RESOURCE_VISIBLE 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/bus.h> 35 #include <sys/conf.h> 36 #include <sys/kernel.h> 37 #include <sys/module.h> 38 39 #include <dev/quicc/quicc_bus.h> 40 41 #include <machine/bus.h> 42 #include <sys/rman.h> 43 #include <machine/resource.h> 44 45 #include <dev/scc/scc_bfe.h> 46 47 static int 48 scc_quicc_probe(device_t dev) 49 { 50 device_t parent; 51 struct scc_softc *sc; 52 uintptr_t devtype, rclk; 53 int error; 54 55 parent = device_get_parent(dev); 56 57 error = BUS_READ_IVAR(parent, dev, QUICC_IVAR_DEVTYPE, &devtype); 58 if (error) 59 return (error); 60 if (devtype != QUICC_DEVTYPE_SCC) 61 return (ENXIO); 62 63 device_set_desc(dev, "QUICC quad channel SCC"); 64 65 sc = device_get_softc(dev); 66 sc->sc_class = &scc_quicc_class; 67 if (BUS_READ_IVAR(parent, dev, QUICC_IVAR_BRGCLK, &rclk)) 68 rclk = 0; 69 return (scc_bfe_probe(dev, 0, rclk, 0)); 70 } 71 72 static int 73 scc_quicc_attach(device_t dev) 74 { 75 76 return (scc_bfe_attach(dev, 0)); 77 } 78 79 static device_method_t scc_quicc_methods[] = { 80 /* Device interface */ 81 DEVMETHOD(device_probe, scc_quicc_probe), 82 DEVMETHOD(device_attach, scc_quicc_attach), 83 DEVMETHOD(device_detach, scc_bfe_detach), 84 85 DEVMETHOD(bus_alloc_resource, scc_bus_alloc_resource), 86 DEVMETHOD(bus_release_resource, scc_bus_release_resource), 87 DEVMETHOD(bus_get_resource, scc_bus_get_resource), 88 DEVMETHOD(bus_read_ivar, scc_bus_read_ivar), 89 DEVMETHOD(bus_setup_intr, scc_bus_setup_intr), 90 DEVMETHOD(bus_teardown_intr, scc_bus_teardown_intr), 91 DEVMETHOD(bus_print_child, bus_generic_print_child), 92 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 93 { 0, 0 } 94 }; 95 96 static driver_t scc_quicc_driver = { 97 scc_driver_name, 98 scc_quicc_methods, 99 sizeof(struct scc_softc), 100 }; 101 102 DRIVER_MODULE(scc, quicc, scc_quicc_driver, scc_devclass, 0, 0); 103