ofwpci.c revision 1.10
1 /* $NetBSD: ofwpci.c,v 1.10 2011/06/18 08:08:29 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tim Rightnour 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: ofwpci.c,v 1.10 2011/06/18 08:08:29 matt Exp $"); 34 35 #include "opt_pci.h" 36 37 #include <sys/param.h> 38 #include <sys/device.h> 39 #include <sys/malloc.h> 40 #include <sys/extent.h> 41 #include <sys/systm.h> 42 43 #include <dev/pci/pcivar.h> 44 #include <dev/pci/pciconf.h> 45 #include <dev/ofw/openfirm.h> 46 #include <dev/ofw/ofw_pci.h> 47 48 #include <machine/autoconf.h> 49 #include <machine/isa_machdep.h> 50 #include <machine/pio.h> 51 52 struct ofwpci_softc { 53 device_t sc_dev; 54 struct genppc_pci_chipset sc_pc; 55 struct powerpc_bus_space sc_iot; 56 struct powerpc_bus_space sc_memt; 57 }; 58 59 static void ofwpci_attach(device_t, device_t, void *); 60 static int ofwpci_match(device_t, cfdata_t, void *); 61 62 CFATTACH_DECL_NEW(ofwpci, sizeof(struct ofwpci_softc), 63 ofwpci_match, ofwpci_attach, NULL, NULL); 64 65 extern struct genppc_pci_chipset *genppc_pct; 66 extern struct model_data modeldata; 67 68 static void 69 ofwpci_get_chipset_tag(pci_chipset_tag_t pc) 70 { 71 pc->pc_conf_v = (void *)pc; 72 73 pc->pc_attach_hook = genppc_pci_ofmethod_attach_hook; 74 pc->pc_bus_maxdevs = genppc_pci_bus_maxdevs; 75 pc->pc_make_tag = genppc_pci_ofmethod_make_tag; 76 pc->pc_conf_read = genppc_pci_ofmethod_conf_read; 77 pc->pc_conf_write = genppc_pci_ofmethod_conf_write; 78 79 pc->pc_intr_v = (void *)pc; 80 81 pc->pc_intr_map = genofw_pci_intr_map; 82 pc->pc_intr_string = genppc_pci_intr_string; 83 pc->pc_intr_evcnt = genppc_pci_intr_evcnt; 84 pc->pc_intr_establish = genppc_pci_intr_establish; 85 pc->pc_intr_disestablish = genppc_pci_intr_disestablish; 86 87 pc->pc_conf_interrupt = genppc_pci_conf_interrupt; 88 pc->pc_decompose_tag = genppc_pci_ofmethod_decompose_tag; 89 pc->pc_conf_hook = genofw_pci_conf_hook; 90 91 pc->pc_addr = 0; 92 pc->pc_data = 0; 93 pc->pc_bus = 0; 94 pc->pc_node = 0; 95 pc->pc_memt = 0; 96 pc->pc_iot = 0; 97 pc->pc_ihandle = 0; 98 } 99 100 static int 101 ofwpci_match(device_t parent, cfdata_t cf, void *aux) 102 { 103 struct confargs *ca = aux; 104 char name[32]; 105 106 if (strcmp(ca->ca_name, "pci") != 0) 107 return 0; 108 109 memset(name, 0, sizeof(name)); 110 OF_getprop(ca->ca_node, "device_type", name, sizeof(name)); 111 if (strcmp(name, "pci") != 0) 112 return 0; 113 114 return 1; 115 } 116 117 static void 118 ofwpci_attach(device_t parent, device_t self, void *aux) 119 { 120 struct ofwpci_softc *sc = device_private(self); 121 pci_chipset_tag_t pc = &sc->sc_pc; 122 struct confargs *ca = aux; 123 struct pcibus_attach_args pba; 124 struct genppc_pci_chipset_businfo *pbi; 125 int node = ca->ca_node; 126 int i, isprim = 0; 127 uint32_t busrange[2]; 128 char buf[64]; 129 #ifdef PCI_NETBSD_CONFIGURE 130 struct extent *ioext, *memext; 131 #endif 132 133 aprint_normal("\n"); 134 135 sc->sc_dev = self; 136 137 /* PCI bus number */ 138 if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8) 139 return; 140 141 /* bus space map the io ranges */ 142 sc->sc_iot.pbs_flags = _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_IO_TYPE; 143 sc->sc_iot.pbs_base = 0x00000000; 144 if (ofwoea_map_space(RANGE_TYPE_PCI, RANGE_IO, node, &sc->sc_iot, 145 "ofwpci io-space") != 0) 146 panic("Can't init ofwpci io tag"); 147 148 sc->sc_memt.pbs_flags = _BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_MEM_TYPE; 149 sc->sc_memt.pbs_base = 0x00000000; 150 if (ofwoea_map_space(RANGE_TYPE_PCI, RANGE_MEM, node, &sc->sc_memt, 151 "ofwpci mem-space") != 0) 152 panic("Can't init ofwpci mem tag"); 153 154 aprint_debug("io base=0x%x offset=0x%x limit=0x%x\n", 155 sc->sc_iot.pbs_base, sc->sc_iot.pbs_offset, sc->sc_iot.pbs_limit); 156 157 aprint_debug("mem base=0x%x offset=0x%x limit=0x%x\n", 158 sc->sc_memt.pbs_base, sc->sc_memt.pbs_offset, 159 sc->sc_memt.pbs_limit); 160 161 /* are we the primary pci bus? */ 162 if (of_find_firstchild_byname(OF_finddevice("/"), "pci") == node) { 163 int isa_node; 164 165 isprim++; 166 /* yes we are, now do we have an ISA child? */ 167 isa_node = of_find_firstchild_byname(node, "isa"); 168 if (isa_node != -1) { 169 /* isa == pci */ 170 genppc_isa_io_space_tag = sc->sc_iot; 171 genppc_isa_mem_space_tag = sc->sc_memt; 172 map_isa_ioregs(); 173 init_ofppc_interrupt(); 174 ofppc_init_comcons(isa_node); 175 } 176 } 177 178 ofwpci_get_chipset_tag(pc); 179 180 pc->pc_node = node; 181 i = OF_package_to_path(node, buf, sizeof(buf)-5); 182 if (i <= 0) 183 panic("Can't determine path for pci node %d", node); 184 buf[i] = '\0'; 185 pc->pc_ihandle = OF_open(buf); 186 if (pc->pc_ihandle < 0) 187 panic("Can't open device %s", buf); 188 pc->pc_bus = busrange[0]; 189 pc->pc_iot = &sc->sc_iot; 190 pc->pc_memt = &sc->sc_memt; 191 192 pbi = malloc(sizeof(struct genppc_pci_chipset_businfo), 193 M_DEVBUF, M_NOWAIT); 194 KASSERT(pbi != NULL); 195 pbi->pbi_properties = prop_dictionary_create(); 196 KASSERT(pbi->pbi_properties != NULL); 197 SIMPLEQ_INIT(&pc->pc_pbi); 198 SIMPLEQ_INSERT_TAIL(&pc->pc_pbi, pbi, next); 199 200 genofw_setup_pciintr_map((void *)pc, pbi, pc->pc_node); 201 #ifdef PCI_NETBSD_CONFIGURE 202 ioext = extent_create("pciio", 203 modeldata.pciiodata[device_unit(self)].start, 204 modeldata.pciiodata[device_unit(self)].limit, 205 M_DEVBUF, NULL, 0, EX_NOWAIT); 206 memext = extent_create("pcimem", sc->sc_memt.pbs_base, 207 sc->sc_memt.pbs_limit-1, M_DEVBUF, NULL, 0, EX_NOWAIT); 208 209 if (pci_configure_bus(pc, ioext, memext, NULL, 0, CACHELINESIZE)) 210 aprint_error("pci_configure_bus() failed\n"); 211 212 extent_destroy(ioext); 213 extent_destroy(memext); 214 #endif /* PCI_NETBSD_CONFIGURE */ 215 memset(&pba, 0, sizeof(pba)); 216 pba.pba_memt = pc->pc_memt; 217 pba.pba_iot = pc->pc_iot; 218 pba.pba_dmat = &pci_bus_dma_tag; 219 pba.pba_dmat64 = NULL; 220 pba.pba_bus = pc->pc_bus; 221 pba.pba_bridgetag = NULL; 222 pba.pba_pc = pc; 223 pba.pba_flags = PCI_FLAGS_IO_OKAY | PCI_FLAGS_MEM_OKAY; 224 config_found_ia(self, "pcibus", &pba, pcibusprint); 225 } 226
Indexes created Mon Sep 29 03:10:08 GMT 2025