1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2019 Michal Meloun <mmel@FreeBSD.org> 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 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/bus.h> 31 #include <sys/kernel.h> 32 #include <sys/module.h> 33 #include <sys/mutex.h> 34 #include <sys/rman.h> 35 #include <machine/bus.h> 36 37 #include <dev/ofw/openfirm.h> 38 #include <dev/ofw/ofw_bus.h> 39 #include <dev/ofw/ofw_bus_subr.h> 40 41 #include <dev/extres/syscon/syscon.h> 42 #include <dev/fdt/simple_mfd.h> 43 44 static struct ofw_compat_data compat_data[] = { 45 {"marvell,cp110-icu", 1}, 46 {NULL, 0} 47 }; 48 49 static int 50 mv_cp110_icu_bus_probe(device_t dev) 51 { 52 53 if (!ofw_bus_status_okay(dev)) 54 return (ENXIO); 55 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) 56 return (ENXIO); 57 58 device_set_desc(dev, "Marvell Interrupt Consolidation Unit Bus"); 59 return (BUS_PROBE_DEFAULT); 60 } 61 62 static device_method_t mv_cp110_icu_bus_methods[] = { 63 DEVMETHOD(device_probe, mv_cp110_icu_bus_probe), 64 65 DEVMETHOD_END 66 }; 67 68 DEFINE_CLASS_1(mv_cp110_icu_bus, mv_cp110_icu_bus_driver, 69 mv_cp110_icu_bus_methods, sizeof(struct simple_mfd_softc), 70 simple_mfd_driver); 71 72 EARLY_DRIVER_MODULE(mv_cp110_icu_bus, simplebus, mv_cp110_icu_bus_driver, 0, 0, 73 BUS_PASS_INTERRUPT); 74 MODULE_VERSION(mv_cp110_icu_bus, 1); 75