openpic_iobus.c revision 256281
1/*- 2 * Copyright 2003 by Peter Grehan. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 */ 28 29/* 30 * The psim iobus attachment for the OpenPIC interrupt controller. 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: stable/10/sys/powerpc/psim/openpic_iobus.c 218075 2011-01-29 20:58:38Z marcel $"); 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/module.h> 39#include <sys/bus.h> 40#include <sys/conf.h> 41#include <sys/kernel.h> 42 43#include <dev/ofw/openfirm.h> 44 45#include <machine/bus.h> 46#include <machine/intr_machdep.h> 47#include <machine/md_var.h> 48#include <machine/pio.h> 49#include <machine/resource.h> 50 51#include <vm/vm.h> 52#include <vm/pmap.h> 53 54#include <sys/rman.h> 55 56#include <machine/openpicvar.h> 57#include <powerpc/psim/iobusvar.h> 58 59#include "pic_if.h" 60 61/* 62 * PSIM IOBus interface 63 */ 64static int openpic_iobus_probe(device_t); 65static int openpic_iobus_attach(device_t); 66 67static device_method_t openpic_iobus_methods[] = { 68 /* Device interface */ 69 DEVMETHOD(device_probe, openpic_iobus_probe), 70 DEVMETHOD(device_attach, openpic_iobus_attach), 71 72 /* PIC interface */ 73 DEVMETHOD(pic_config, openpic_config), 74 DEVMETHOD(pic_dispatch, openpic_dispatch), 75 DEVMETHOD(pic_enable, openpic_enable), 76 DEVMETHOD(pic_eoi, openpic_eoi), 77 DEVMETHOD(pic_ipi, openpic_ipi), 78 DEVMETHOD(pic_mask, openpic_mask), 79 DEVMETHOD(pic_unmask, openpic_unmask), 80 81 { 0, 0 } 82}; 83 84static driver_t openpic_iobus_driver = { 85 "openpic", 86 openpic_iobus_methods, 87 sizeof(struct openpic_softc) 88}; 89 90DRIVER_MODULE(openpic, iobus, openpic_iobus_driver, openpic_devclass, 0, 0); 91 92static int 93openpic_iobus_probe(device_t dev) 94{ 95 struct openpic_softc *sc; 96 char *name; 97 98 name = iobus_get_name(dev); 99 if (strcmp(name, "interrupt-controller") != 0) 100 return (ENXIO); 101 102 /* 103 * The description was already printed out in the nexus 104 * probe, so don't do it again here 105 */ 106 device_set_desc(dev, OPENPIC_DEVSTR); 107 108 sc = device_get_softc(dev); 109 sc->sc_psim = 1; 110 111 return (0); 112} 113 114static int 115openpic_iobus_attach(device_t dev) 116{ 117 118 return (openpic_common_attach(dev, 0)); 119} 120