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/cdefs.h> 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/bus.h> 33 #include <sys/conf.h> 34 #include <sys/kernel.h> 35 #include <sys/module.h> 36 37 #include <dev/quicc/quicc_bus.h> 38 39 #include <machine/bus.h> 40 #include <sys/rman.h> 41 #include <machine/resource.h> 42 43 #include <dev/scc/scc_bfe.h> 44 45 static int 46 scc_quicc_probe(device_t dev) 47 { 48 device_t parent; 49 struct scc_softc *sc; 50 uintptr_t devtype, rclk; 51 int error; 52 53 parent = device_get_parent(dev); 54 55 error = BUS_READ_IVAR(parent, dev, QUICC_IVAR_DEVTYPE, &devtype); 56 if (error) 57 return (error); 58 if (devtype != QUICC_DEVTYPE_SCC) 59 return (ENXIO); 60 61 device_set_desc(dev, "QUICC quad channel SCC"); 62 63 sc = device_get_softc(dev); 64 sc->sc_class = &scc_quicc_class; 65 if (BUS_READ_IVAR(parent, dev, QUICC_IVAR_BRGCLK, &rclk)) 66 rclk = 0; 67 return (scc_bfe_probe(dev, 0, rclk, 0)); 68 } 69 70 static int 71 scc_quicc_attach(device_t dev) 72 { 73 74 return (scc_bfe_attach(dev, 0)); 75 } 76 77 static device_method_t scc_quicc_methods[] = { 78 /* Device interface */ 79 DEVMETHOD(device_probe, scc_quicc_probe), 80 DEVMETHOD(device_attach, scc_quicc_attach), 81 DEVMETHOD(device_detach, scc_bfe_detach), 82 83 DEVMETHOD(bus_alloc_resource, scc_bus_alloc_resource), 84 DEVMETHOD(bus_release_resource, scc_bus_release_resource), 85 DEVMETHOD(bus_get_resource, scc_bus_get_resource), 86 DEVMETHOD(bus_read_ivar, scc_bus_read_ivar), 87 DEVMETHOD(bus_setup_intr, scc_bus_setup_intr), 88 DEVMETHOD(bus_teardown_intr, scc_bus_teardown_intr), 89 90 DEVMETHOD_END 91 }; 92 93 static driver_t scc_quicc_driver = { 94 scc_driver_name, 95 scc_quicc_methods, 96 sizeof(struct scc_softc), 97 }; 98 99 DRIVER_MODULE(scc, quicc, scc_quicc_driver, NULL, NULL); 100