1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2006 Juniper Networks. 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/bus.h> 34 #include <sys/conf.h> 35 #include <sys/kernel.h> 36 #include <sys/lock.h> 37 #include <sys/malloc.h> 38 #include <sys/module.h> 39 #include <sys/rman.h> 40 #include <machine/bus.h> 41 42 #include <dev/ofw/ofw_bus.h> 43 #include <dev/ofw/ofw_bus_subr.h> 44 #include <dev/quicc/quicc_bfe.h> 45 46 static int quicc_fdt_probe(device_t dev); 47 48 static device_method_t quicc_fdt_methods[] = { 49 /* Device interface */ 50 DEVMETHOD(device_probe, quicc_fdt_probe), 51 DEVMETHOD(device_attach, quicc_bfe_attach), 52 DEVMETHOD(device_detach, quicc_bfe_detach), 53 54 DEVMETHOD(bus_alloc_resource, quicc_bus_alloc_resource), 55 DEVMETHOD(bus_release_resource, quicc_bus_release_resource), 56 DEVMETHOD(bus_get_resource, quicc_bus_get_resource), 57 DEVMETHOD(bus_read_ivar, quicc_bus_read_ivar), 58 DEVMETHOD(bus_setup_intr, quicc_bus_setup_intr), 59 DEVMETHOD(bus_teardown_intr, quicc_bus_teardown_intr), 60 61 DEVMETHOD_END 62 }; 63 64 static driver_t quicc_fdt_driver = { 65 quicc_driver_name, 66 quicc_fdt_methods, 67 sizeof(struct quicc_softc), 68 }; 69 70 static int 71 quicc_fdt_probe(device_t dev) 72 { 73 phandle_t par; 74 pcell_t clock; 75 76 if (!ofw_bus_status_okay(dev)) 77 return (ENXIO); 78 79 if (!ofw_bus_is_compatible(dev, "fsl,cpm2")) 80 return (ENXIO); 81 82 par = OF_parent(ofw_bus_get_node(dev)); 83 if (OF_getprop(par, "bus-frequency", &clock, sizeof(clock)) <= 0) 84 clock = 0; 85 86 return (quicc_bfe_probe(dev, (uintptr_t)clock)); 87 } 88 89 DRIVER_MODULE(quicc, simplebus, quicc_fdt_driver, 0, 0); 90