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