1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright 2003 by Peter Grehan. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 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 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 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, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 */ 30 31 /* 32 * The psim iobus attachment for the OpenPIC interrupt controller. 33 */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/module.h> 41 #include <sys/bus.h> 42 #include <sys/conf.h> 43 #include <sys/kernel.h> 44 45 #include <dev/ofw/openfirm.h> 46 47 #include <machine/bus.h> 48 #include <machine/intr_machdep.h> 49 #include <machine/md_var.h> 50 #include <machine/pio.h> 51 #include <machine/resource.h> 52 53 #include <vm/vm.h> 54 #include <vm/pmap.h> 55 56 #include <sys/rman.h> 57 58 #include <machine/openpicreg.h> 59 #include <machine/openpicvar.h> 60 #include <powerpc/psim/iobusvar.h> 61 62 #include "pic_if.h" 63 64 /* 65 * PSIM IOBus interface 66 */ 67 static int openpic_iobus_probe(device_t); 68 static int openpic_iobus_attach(device_t); 69 70 static device_method_t openpic_iobus_methods[] = { 71 /* Device interface */ 72 DEVMETHOD(device_probe, openpic_iobus_probe), 73 DEVMETHOD(device_attach, openpic_iobus_attach), 74 75 /* PIC interface */ 76 DEVMETHOD(pic_config, openpic_config), 77 DEVMETHOD(pic_dispatch, openpic_dispatch), 78 DEVMETHOD(pic_enable, openpic_enable), 79 DEVMETHOD(pic_eoi, openpic_eoi), 80 DEVMETHOD(pic_ipi, openpic_ipi), 81 DEVMETHOD(pic_mask, openpic_mask), 82 DEVMETHOD(pic_unmask, openpic_unmask), 83 { 0, 0 } 84 }; 85 86 static driver_t openpic_iobus_driver = { 87 "openpic", 88 openpic_iobus_methods, 89 sizeof(struct openpic_softc) 90 }; 91 92 DRIVER_MODULE(openpic, iobus, openpic_iobus_driver, openpic_devclass, 0, 0); 93 94 static int 95 openpic_iobus_probe(device_t dev) 96 { 97 struct openpic_softc *sc; 98 char *name; 99 100 name = iobus_get_name(dev); 101 if (strcmp(name, "interrupt-controller") != 0) 102 return (ENXIO); 103 104 /* 105 * The description was already printed out in the nexus 106 * probe, so don't do it again here 107 */ 108 device_set_desc(dev, OPENPIC_DEVSTR); 109 110 sc = device_get_softc(dev); 111 sc->sc_psim = 1; 112 113 return (0); 114 } 115 116 static int 117 openpic_iobus_attach(device_t dev) 118 { 119 120 return (openpic_common_attach(dev, 0)); 121 } 122