1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2000 BSDi 4 * 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, 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 * $FreeBSD$ 28 */ 29 30 #include <sys/param.h> 31 #include <sys/module.h> 32 #include <sys/bus.h> 33 #include <sys/malloc.h> 34 #include <sys/kernel.h> 35 36 #include <dev/ofw/openfirm.h> 37 #include <dev/ofw/ofw_pci.h> 38 39 #include <powerpc/ofw/ofw_pci.h> 40 41 #include <dev/pci/pcivar.h> 42 #include <dev/pci/pcireg.h> 43 #include <dev/pci/pcib_private.h> 44 45 #include "pcib_if.h" 46 47 static int ofw_pcib_pci_probe(device_t bus); 48 static int ofw_pcib_pci_attach(device_t bus); 49 50 static device_method_t ofw_pcib_pci_methods[] = { 51 /* Device interface */ 52 DEVMETHOD(device_probe, ofw_pcib_pci_probe), 53 DEVMETHOD(device_attach, ofw_pcib_pci_attach), 54 DEVMETHOD(device_shutdown, bus_generic_shutdown), 55 DEVMETHOD(device_suspend, bus_generic_suspend), 56 DEVMETHOD(device_resume, bus_generic_resume), 57 58 /* Bus interface */ 59 DEVMETHOD(bus_print_child, bus_generic_print_child), 60 DEVMETHOD(bus_read_ivar, pcib_read_ivar), 61 DEVMETHOD(bus_write_ivar, pcib_write_ivar), 62 DEVMETHOD(bus_alloc_resource, pcib_alloc_resource), 63 DEVMETHOD(bus_release_resource, bus_generic_release_resource), 64 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 65 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 66 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 67 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 68 69 /* pcib interface */ 70 DEVMETHOD(pcib_maxslots, pcib_maxslots), 71 DEVMETHOD(pcib_read_config, pcib_read_config), 72 DEVMETHOD(pcib_write_config, pcib_write_config), 73 DEVMETHOD(pcib_route_interrupt, pcib_route_interrupt), 74 75 {0, 0} 76 }; 77 78 static devclass_t pcib_devclass; 79 80 DEFINE_CLASS_0(pcib, ofw_pcib_pci_driver, ofw_pcib_pci_methods, 81 sizeof(struct pcib_softc)); 82 DRIVER_MODULE(ofw_pcib, pci, ofw_pcib_pci_driver, pcib_devclass, 0, 0); 83 84 static int 85 ofw_pcib_pci_probe(device_t dev) 86 { 87 88 if ((pci_get_class(dev) != PCIC_BRIDGE) || 89 (pci_get_subclass(dev) != PCIS_BRIDGE_PCI)) { 90 return (ENXIO); 91 } 92 if (ofw_pci_find_node(dev) == 0) { 93 return (ENXIO); 94 } 95 96 device_set_desc(dev, "Open Firmware PCI-PCI bridge"); 97 return (-1000); 98 } 99 100 static int 101 ofw_pcib_pci_attach(device_t dev) 102 { 103 phandle_t node; 104 uint32_t busrange[2]; 105 106 node = ofw_pci_find_node(dev); 107 if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8) 108 return (ENXIO); 109 110 pcib_attach_common(dev); 111 112 ofw_pci_fixup(dev, busrange[0], node); 113 114 device_add_child(dev, "pci", -1); 115 116 return (bus_generic_attach(dev)); 117 } 118