pcib.c revision 1.1.10.2
1 1.1.10.2 bouyer /* $NetBSD: pcib.c,v 1.1.10.2 2007/11/13 16:00:20 bouyer Exp $ */ 2 1.1.10.2 bouyer 3 1.1.10.2 bouyer /*- 4 1.1.10.2 bouyer * Copyright (c) 1996, 1998 The NetBSD Foundation, Inc. 5 1.1.10.2 bouyer * All rights reserved. 6 1.1.10.2 bouyer * 7 1.1.10.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.1.10.2 bouyer * by Jason R. Thorpe. 9 1.1.10.2 bouyer * 10 1.1.10.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.1.10.2 bouyer * modification, are permitted provided that the following conditions 12 1.1.10.2 bouyer * are met: 13 1.1.10.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.1.10.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.1.10.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.10.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.1.10.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.1.10.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.1.10.2 bouyer * must display the following acknowledgement: 20 1.1.10.2 bouyer * This product includes software developed by the NetBSD 21 1.1.10.2 bouyer * Foundation, Inc. and its contributors. 22 1.1.10.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.10.2 bouyer * contributors may be used to endorse or promote products derived 24 1.1.10.2 bouyer * from this software without specific prior written permission. 25 1.1.10.2 bouyer * 26 1.1.10.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.10.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.10.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.10.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.10.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.10.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.10.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.10.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.10.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.10.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.10.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.1.10.2 bouyer */ 38 1.1.10.2 bouyer 39 1.1.10.2 bouyer #include <sys/cdefs.h> 40 1.1.10.2 bouyer __KERNEL_RCSID(0, "$NetBSD: pcib.c,v 1.1.10.2 2007/11/13 16:00:20 bouyer Exp $"); 41 1.1.10.2 bouyer 42 1.1.10.2 bouyer #include <sys/types.h> 43 1.1.10.2 bouyer #include <sys/param.h> 44 1.1.10.2 bouyer #include <sys/systm.h> 45 1.1.10.2 bouyer #include <sys/device.h> 46 1.1.10.2 bouyer 47 1.1.10.2 bouyer #include <machine/bus.h> 48 1.1.10.2 bouyer 49 1.1.10.2 bouyer #include <dev/isa/isavar.h> 50 1.1.10.2 bouyer 51 1.1.10.2 bouyer #include <dev/pci/pcivar.h> 52 1.1.10.2 bouyer #include <dev/pci/pcireg.h> 53 1.1.10.2 bouyer 54 1.1.10.2 bouyer #include <dev/pci/pcidevs.h> 55 1.1.10.2 bouyer 56 1.1.10.2 bouyer #include "isa.h" 57 1.1.10.2 bouyer 58 1.1.10.2 bouyer int pcibmatch(struct device *, struct cfdata *, void *); 59 1.1.10.2 bouyer void pcibattach(struct device *, struct device *, void *); 60 1.1.10.2 bouyer 61 1.1.10.2 bouyer CFATTACH_DECL(pcib, sizeof(struct device), 62 1.1.10.2 bouyer pcibmatch, pcibattach, NULL, NULL); 63 1.1.10.2 bouyer 64 1.1.10.2 bouyer void pcib_callback(struct device *); 65 1.1.10.2 bouyer 66 1.1.10.2 bouyer int 67 1.1.10.2 bouyer pcibmatch(struct device *parent, struct cfdata *match, void *aux) 68 1.1.10.2 bouyer { 69 1.1.10.2 bouyer struct pci_attach_args *pa = aux; 70 1.1.10.2 bouyer 71 1.1.10.2 bouyer #if 0 72 1.1.10.2 bouyer /* 73 1.1.10.2 bouyer * PCI-ISA bridges are matched on class/subclass. 74 1.1.10.2 bouyer * This list contains only the bridges where correct 75 1.1.10.2 bouyer * (or incorrect) behaviour is not yet confirmed. 76 1.1.10.2 bouyer */ 77 1.1.10.2 bouyer switch (PCI_VENDOR(pa->pa_id)) { 78 1.1.10.2 bouyer case PCI_VENDOR_INTEL: 79 1.1.10.2 bouyer switch (PCI_PRODUCT(pa->pa_id)) { 80 1.1.10.2 bouyer case PCI_PRODUCT_INTEL_82426EX: 81 1.1.10.2 bouyer case PCI_PRODUCT_INTEL_82380AB: 82 1.1.10.2 bouyer return (1); 83 1.1.10.2 bouyer } 84 1.1.10.2 bouyer break; 85 1.1.10.2 bouyer 86 1.1.10.2 bouyer case PCI_VENDOR_UMC: 87 1.1.10.2 bouyer switch (PCI_PRODUCT(pa->pa_id)) { 88 1.1.10.2 bouyer case PCI_PRODUCT_UMC_UM8886F: 89 1.1.10.2 bouyer case PCI_PRODUCT_UMC_UM82C886: 90 1.1.10.2 bouyer return (1); 91 1.1.10.2 bouyer } 92 1.1.10.2 bouyer break; 93 1.1.10.2 bouyer case PCI_VENDOR_ALI: 94 1.1.10.2 bouyer switch (PCI_PRODUCT(pa->pa_id)) { 95 1.1.10.2 bouyer case PCI_PRODUCT_ALI_M1449: 96 1.1.10.2 bouyer case PCI_PRODUCT_ALI_M1543: 97 1.1.10.2 bouyer return (1); 98 1.1.10.2 bouyer } 99 1.1.10.2 bouyer break; 100 1.1.10.2 bouyer case PCI_VENDOR_COMPAQ: 101 1.1.10.2 bouyer switch (PCI_PRODUCT(pa->pa_id)) { 102 1.1.10.2 bouyer case PCI_PRODUCT_COMPAQ_PCI_ISA_BRIDGE: 103 1.1.10.2 bouyer return (1); 104 1.1.10.2 bouyer } 105 1.1.10.2 bouyer break; 106 1.1.10.2 bouyer case PCI_VENDOR_VIATECH: 107 1.1.10.2 bouyer switch (PCI_PRODUCT(pa->pa_id)) { 108 1.1.10.2 bouyer case PCI_PRODUCT_VIATECH_VT82C570MV: 109 1.1.10.2 bouyer case PCI_PRODUCT_VIATECH_VT82C586_ISA: 110 1.1.10.2 bouyer return (1); 111 1.1.10.2 bouyer } 112 1.1.10.2 bouyer break; 113 1.1.10.2 bouyer } 114 1.1.10.2 bouyer #endif 115 1.1.10.2 bouyer 116 1.1.10.2 bouyer /* 117 1.1.10.2 bouyer * some special cases: 118 1.1.10.2 bouyer */ 119 1.1.10.2 bouyer switch (PCI_VENDOR(pa->pa_id)) { 120 1.1.10.2 bouyer case PCI_VENDOR_INTEL: 121 1.1.10.2 bouyer switch (PCI_PRODUCT(pa->pa_id)) { 122 1.1.10.2 bouyer case PCI_PRODUCT_INTEL_SIO: 123 1.1.10.2 bouyer /* 124 1.1.10.2 bouyer * The Intel SIO identifies itself as a 125 1.1.10.2 bouyer * miscellaneous prehistoric. 126 1.1.10.2 bouyer */ 127 1.1.10.2 bouyer case PCI_PRODUCT_INTEL_82371MX: 128 1.1.10.2 bouyer /* 129 1.1.10.2 bouyer * The Intel 82371MX identifies itself erroneously as a 130 1.1.10.2 bouyer * miscellaneous bridge. 131 1.1.10.2 bouyer */ 132 1.1.10.2 bouyer case PCI_PRODUCT_INTEL_82371AB_ISA: 133 1.1.10.2 bouyer /* 134 1.1.10.2 bouyer * Some Intel 82371AB PCI-ISA bridge identifies 135 1.1.10.2 bouyer * itself as miscellaneous bridge. 136 1.1.10.2 bouyer */ 137 1.1.10.2 bouyer return (1); 138 1.1.10.2 bouyer } 139 1.1.10.2 bouyer break; 140 1.1.10.2 bouyer case PCI_VENDOR_SIS: 141 1.1.10.2 bouyer switch (PCI_PRODUCT(pa->pa_id)) { 142 1.1.10.2 bouyer case PCI_PRODUCT_SIS_85C503: 143 1.1.10.2 bouyer /* 144 1.1.10.2 bouyer * The SIS 85C503 identifies itself as a 145 1.1.10.2 bouyer * miscellaneous prehistoric. 146 1.1.10.2 bouyer */ 147 1.1.10.2 bouyer return (1); 148 1.1.10.2 bouyer } 149 1.1.10.2 bouyer break; 150 1.1.10.2 bouyer case PCI_VENDOR_VIATECH: 151 1.1.10.2 bouyer switch (PCI_PRODUCT(pa->pa_id)) { 152 1.1.10.2 bouyer case PCI_PRODUCT_VIATECH_VT82C686A_SMB: 153 1.1.10.2 bouyer /* 154 1.1.10.2 bouyer * The VIA VT82C686A SMBus Controller itself as 155 1.1.10.2 bouyer * ISA bridge, but it's wrong ! 156 1.1.10.2 bouyer */ 157 1.1.10.2 bouyer return (0); 158 1.1.10.2 bouyer } 159 1.1.10.2 bouyer /* 160 1.1.10.2 bouyer * The Cyrix cs5530 PCI host bridge does not have a broken 161 1.1.10.2 bouyer * latch on the i8254 clock core, unlike its predecessors 162 1.1.10.2 bouyer * the cs5510 and cs5520. This reverses the setting from 163 1.1.10.2 bouyer * i386/i386/identcpu.c where it arguably should not have 164 1.1.10.2 bouyer * been set in the first place. XXX 165 1.1.10.2 bouyer */ 166 1.1.10.2 bouyer case PCI_VENDOR_CYRIX: 167 1.1.10.2 bouyer switch (PCI_PRODUCT(pa->pa_id)) { 168 1.1.10.2 bouyer case PCI_PRODUCT_CYRIX_CX5530_PCIB: 169 1.1.10.2 bouyer { 170 1.1.10.2 bouyer extern int clock_broken_latch; 171 1.1.10.2 bouyer 172 1.1.10.2 bouyer clock_broken_latch = 0; 173 1.1.10.2 bouyer } 174 1.1.10.2 bouyer return(1); 175 1.1.10.2 bouyer } 176 1.1.10.2 bouyer break; 177 1.1.10.2 bouyer } 178 1.1.10.2 bouyer 179 1.1.10.2 bouyer if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE && 180 1.1.10.2 bouyer PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_ISA) { 181 1.1.10.2 bouyer return (1); 182 1.1.10.2 bouyer } 183 1.1.10.2 bouyer 184 1.1.10.2 bouyer return (0); 185 1.1.10.2 bouyer } 186 1.1.10.2 bouyer 187 1.1.10.2 bouyer void 188 1.1.10.2 bouyer pcibattach(struct device *parent, struct device *self, void *aux) 189 1.1.10.2 bouyer { 190 1.1.10.2 bouyer struct pci_attach_args *pa = aux; 191 1.1.10.2 bouyer char devinfo[256]; 192 1.1.10.2 bouyer 193 1.1.10.2 bouyer aprint_naive("\n"); 194 1.1.10.2 bouyer aprint_normal("\n"); 195 1.1.10.2 bouyer 196 1.1.10.2 bouyer /* 197 1.1.10.2 bouyer * Just print out a description and defer configuration 198 1.1.10.2 bouyer * until all PCI devices have been attached. 199 1.1.10.2 bouyer */ 200 1.1.10.2 bouyer pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 201 1.1.10.2 bouyer aprint_normal("%s: %s (rev. 0x%02x)\n", self->dv_xname, devinfo, 202 1.1.10.2 bouyer PCI_REVISION(pa->pa_class)); 203 1.1.10.2 bouyer 204 1.1.10.2 bouyer config_defer(self, pcib_callback); 205 1.1.10.2 bouyer } 206 1.1.10.2 bouyer 207 1.1.10.2 bouyer void 208 1.1.10.2 bouyer pcib_callback(struct device *self) 209 1.1.10.2 bouyer { 210 1.1.10.2 bouyer struct isabus_attach_args iba; 211 1.1.10.2 bouyer 212 1.1.10.2 bouyer /* 213 1.1.10.2 bouyer * Attach the ISA bus behind this bridge. 214 1.1.10.2 bouyer */ 215 1.1.10.2 bouyer memset(&iba, 0, sizeof(iba)); 216 1.1.10.2 bouyer iba.iba_iot = X86_BUS_SPACE_IO; 217 1.1.10.2 bouyer iba.iba_memt = X86_BUS_SPACE_MEM; 218 1.1.10.2 bouyer #if NISA > 0 219 1.1.10.2 bouyer iba.iba_dmat = &isa_bus_dma_tag; 220 1.1.10.2 bouyer #endif 221 1.1.10.2 bouyer config_found_ia(self, "isabus", &iba, isabusprint); 222 1.1.10.2 bouyer } 223
Indexes created Fri Oct 03 02:09:57 GMT 2025