bandit.c revision 1.18.2.2
1 1.18.2.2 thorpej /* $NetBSD: bandit.c,v 1.18.2.2 2002/05/16 01:01:39 thorpej Exp $ */ 2 1.18.2.2 thorpej 3 1.18.2.2 thorpej /*- 4 1.18.2.2 thorpej * Copyright (c) 2000 Tsubai Masanari. All rights reserved. 5 1.18.2.2 thorpej * 6 1.18.2.2 thorpej * Redistribution and use in source and binary forms, with or without 7 1.18.2.2 thorpej * modification, are permitted provided that the following conditions 8 1.18.2.2 thorpej * are met: 9 1.18.2.2 thorpej * 1. Redistributions of source code must retain the above copyright 10 1.18.2.2 thorpej * notice, this list of conditions and the following disclaimer. 11 1.18.2.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 12 1.18.2.2 thorpej * notice, this list of conditions and the following disclaimer in the 13 1.18.2.2 thorpej * documentation and/or other materials provided with the distribution. 14 1.18.2.2 thorpej * 3. The name of the author may not be used to endorse or promote products 15 1.18.2.2 thorpej * derived from this software without specific prior written permission. 16 1.18.2.2 thorpej * 17 1.18.2.2 thorpej * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 1.18.2.2 thorpej * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 1.18.2.2 thorpej * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 1.18.2.2 thorpej * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 1.18.2.2 thorpej * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 1.18.2.2 thorpej * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 1.18.2.2 thorpej * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 1.18.2.2 thorpej * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 1.18.2.2 thorpej * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 1.18.2.2 thorpej * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 1.18.2.2 thorpej */ 28 1.18.2.2 thorpej 29 1.18.2.2 thorpej #include <sys/param.h> 30 1.18.2.2 thorpej #include <sys/device.h> 31 1.18.2.2 thorpej #include <sys/systm.h> 32 1.18.2.2 thorpej 33 1.18.2.2 thorpej #include <dev/pci/pcivar.h> 34 1.18.2.2 thorpej #include <dev/ofw/openfirm.h> 35 1.18.2.2 thorpej #include <dev/ofw/ofw_pci.h> 36 1.18.2.2 thorpej 37 1.18.2.2 thorpej #include <machine/autoconf.h> 38 1.18.2.2 thorpej 39 1.18.2.2 thorpej struct bandit_softc { 40 1.18.2.2 thorpej struct device sc_dev; 41 1.18.2.2 thorpej struct pci_bridge sc_pc; 42 1.18.2.2 thorpej }; 43 1.18.2.2 thorpej 44 1.18.2.2 thorpej void bandit_attach __P((struct device *, struct device *, void *)); 45 1.18.2.2 thorpej int bandit_match __P((struct device *, struct cfdata *, void *)); 46 1.18.2.2 thorpej int bandit_print __P((void *, const char *)); 47 1.18.2.2 thorpej 48 1.18.2.2 thorpej pcireg_t bandit_conf_read __P((pci_chipset_tag_t, pcitag_t, int)); 49 1.18.2.2 thorpej void bandit_conf_write __P((pci_chipset_tag_t, pcitag_t, int, pcireg_t)); 50 1.18.2.2 thorpej 51 1.18.2.2 thorpej static void bandit_init __P((struct bandit_softc *)); 52 1.18.2.2 thorpej 53 1.18.2.2 thorpej struct cfattach bandit_ca = { 54 1.18.2.2 thorpej sizeof(struct bandit_softc), bandit_match, bandit_attach 55 1.18.2.2 thorpej }; 56 1.18.2.2 thorpej 57 1.18.2.2 thorpej int 58 1.18.2.2 thorpej bandit_match(parent, cf, aux) 59 1.18.2.2 thorpej struct device *parent; 60 1.18.2.2 thorpej struct cfdata *cf; 61 1.18.2.2 thorpej void *aux; 62 1.18.2.2 thorpej { 63 1.18.2.2 thorpej struct confargs *ca = aux; 64 1.18.2.2 thorpej 65 1.18.2.2 thorpej if (strcmp(ca->ca_name, "bandit") == 0 || 66 1.18.2.2 thorpej strcmp(ca->ca_name, "chaos") == 0) 67 1.18.2.2 thorpej return 1; 68 1.18.2.2 thorpej 69 1.18.2.2 thorpej return 0; 70 1.18.2.2 thorpej } 71 1.18.2.2 thorpej 72 1.18.2.2 thorpej void 73 1.18.2.2 thorpej bandit_attach(parent, self, aux) 74 1.18.2.2 thorpej struct device *parent, *self; 75 1.18.2.2 thorpej void *aux; 76 1.18.2.2 thorpej { 77 1.18.2.2 thorpej struct bandit_softc *sc = (void *)self; 78 1.18.2.2 thorpej pci_chipset_tag_t pc = &sc->sc_pc; 79 1.18.2.2 thorpej struct confargs *ca = aux; 80 1.18.2.2 thorpej struct pcibus_attach_args pba; 81 1.18.2.2 thorpej int len, node = ca->ca_node; 82 1.18.2.2 thorpej u_int32_t reg[2], busrange[2]; 83 1.18.2.2 thorpej struct ranges { 84 1.18.2.2 thorpej u_int32_t pci_hi, pci_mid, pci_lo; 85 1.18.2.2 thorpej u_int32_t host; 86 1.18.2.2 thorpej u_int32_t size_hi, size_lo; 87 1.18.2.2 thorpej } ranges[6], *rp = ranges; 88 1.18.2.2 thorpej 89 1.18.2.2 thorpej printf("\n"); 90 1.18.2.2 thorpej 91 1.18.2.2 thorpej /* Bandit address */ 92 1.18.2.2 thorpej if (OF_getprop(node, "reg", reg, sizeof(reg)) < 8) 93 1.18.2.2 thorpej return; 94 1.18.2.2 thorpej 95 1.18.2.2 thorpej /* PCI bus number */ 96 1.18.2.2 thorpej if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8) 97 1.18.2.2 thorpej return; 98 1.18.2.2 thorpej 99 1.18.2.2 thorpej pc->node = node; 100 1.18.2.2 thorpej pc->addr = mapiodev(reg[0] + 0x800000, 4); 101 1.18.2.2 thorpej pc->data = mapiodev(reg[0] + 0xc00000, 8); 102 1.18.2.2 thorpej pc->bus = busrange[0]; 103 1.18.2.2 thorpej pc->conf_read = bandit_conf_read; 104 1.18.2.2 thorpej pc->conf_write = bandit_conf_write; 105 1.18.2.2 thorpej pc->memt = (bus_space_tag_t)0; 106 1.18.2.2 thorpej 107 1.18.2.2 thorpej /* find i/o tag */ 108 1.18.2.2 thorpej len = OF_getprop(node, "ranges", ranges, sizeof(ranges)); 109 1.18.2.2 thorpej if (len == -1) 110 1.18.2.2 thorpej return; 111 1.18.2.2 thorpej while (len >= sizeof(ranges[0])) { 112 1.18.2.2 thorpej if ((rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) == 113 1.18.2.2 thorpej OFW_PCI_PHYS_HI_SPACE_IO) 114 1.18.2.2 thorpej pc->iot = (bus_space_tag_t)rp->host; 115 1.18.2.2 thorpej len -= sizeof(ranges[0]); 116 1.18.2.2 thorpej rp++; 117 1.18.2.2 thorpej } 118 1.18.2.2 thorpej 119 1.18.2.2 thorpej bandit_init(sc); 120 1.18.2.2 thorpej 121 1.18.2.2 thorpej memset(&pba, 0, sizeof(pba)); 122 1.18.2.2 thorpej pba.pba_busname = "pci"; 123 1.18.2.2 thorpej pba.pba_memt = pc->memt; 124 1.18.2.2 thorpej pba.pba_iot = pc->iot; 125 1.18.2.2 thorpej pba.pba_dmat = &pci_bus_dma_tag; 126 1.18.2.2 thorpej pba.pba_bus = pc->bus; 127 1.18.2.2 thorpej pba.pba_bridgetag = NULL; 128 1.18.2.2 thorpej pba.pba_pc = pc; 129 1.18.2.2 thorpej pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 130 1.18.2.2 thorpej 131 1.18.2.2 thorpej config_found(self, &pba, bandit_print); 132 1.18.2.2 thorpej } 133 1.18.2.2 thorpej 134 1.18.2.2 thorpej int 135 1.18.2.2 thorpej bandit_print(aux, pnp) 136 1.18.2.2 thorpej void *aux; 137 1.18.2.2 thorpej const char *pnp; 138 1.18.2.2 thorpej { 139 1.18.2.2 thorpej struct pcibus_attach_args *pa = aux; 140 1.18.2.2 thorpej 141 1.18.2.2 thorpej if (pnp) 142 1.18.2.2 thorpej printf("%s at %s", pa->pba_busname, pnp); 143 1.18.2.2 thorpej printf(" bus %d", pa->pba_bus); 144 1.18.2.2 thorpej return UNCONF; 145 1.18.2.2 thorpej } 146 1.18.2.2 thorpej 147 1.18.2.2 thorpej pcireg_t 148 1.18.2.2 thorpej bandit_conf_read(pc, tag, reg) 149 1.18.2.2 thorpej pci_chipset_tag_t pc; 150 1.18.2.2 thorpej pcitag_t tag; 151 1.18.2.2 thorpej int reg; 152 1.18.2.2 thorpej { 153 1.18.2.2 thorpej pcireg_t data; 154 1.18.2.2 thorpej int bus, dev, func, s; 155 1.18.2.2 thorpej u_int32_t x; 156 1.18.2.2 thorpej 157 1.18.2.2 thorpej pci_decompose_tag(pc, tag, &bus, &dev, &func); 158 1.18.2.2 thorpej 159 1.18.2.2 thorpej /* 160 1.18.2.2 thorpej * bandit's minimum device number of the first bus is 11. 161 1.18.2.2 thorpej * So we behave as if there is no device when dev < 11. 162 1.18.2.2 thorpej */ 163 1.18.2.2 thorpej if (func > 7) 164 1.18.2.2 thorpej panic("pci_conf_read: func > 7"); 165 1.18.2.2 thorpej 166 1.18.2.2 thorpej if (bus == pc->bus) { 167 1.18.2.2 thorpej if (dev < 11) 168 1.18.2.2 thorpej return 0xffffffff; 169 1.18.2.2 thorpej x = (1 << dev) | (func << 8) | reg; 170 1.18.2.2 thorpej } else 171 1.18.2.2 thorpej x = tag | reg | 1; 172 1.18.2.2 thorpej 173 1.18.2.2 thorpej s = splhigh(); 174 1.18.2.2 thorpej 175 1.18.2.2 thorpej out32rb(pc->addr, x); 176 1.18.2.2 thorpej DELAY(10); 177 1.18.2.2 thorpej data = 0xffffffff; 178 1.18.2.2 thorpej if (!badaddr(pc->data, 4)) 179 1.18.2.2 thorpej data = in32rb(pc->data); 180 1.18.2.2 thorpej DELAY(10); 181 1.18.2.2 thorpej out32rb(pc->addr, 0); 182 1.18.2.2 thorpej DELAY(10); 183 1.18.2.2 thorpej 184 1.18.2.2 thorpej splx(s); 185 1.18.2.2 thorpej 186 1.18.2.2 thorpej return data; 187 1.18.2.2 thorpej } 188 1.18.2.2 thorpej 189 1.18.2.2 thorpej void 190 1.18.2.2 thorpej bandit_conf_write(pc, tag, reg, data) 191 1.18.2.2 thorpej pci_chipset_tag_t pc; 192 1.18.2.2 thorpej pcitag_t tag; 193 1.18.2.2 thorpej int reg; 194 1.18.2.2 thorpej pcireg_t data; 195 1.18.2.2 thorpej { 196 1.18.2.2 thorpej int bus, dev, func, s; 197 1.18.2.2 thorpej u_int32_t x; 198 1.18.2.2 thorpej 199 1.18.2.2 thorpej pci_decompose_tag(pc, tag, &bus, &dev, &func); 200 1.18.2.2 thorpej 201 1.18.2.2 thorpej if (func > 7) 202 1.18.2.2 thorpej panic("pci_conf_write: func > 7"); 203 1.18.2.2 thorpej 204 1.18.2.2 thorpej if (bus == pc->bus) { 205 1.18.2.2 thorpej if (dev < 11) 206 1.18.2.2 thorpej panic("pci_conf_write: dev < 11"); 207 1.18.2.2 thorpej x = (1 << dev) | (func << 8) | reg; 208 1.18.2.2 thorpej } else 209 1.18.2.2 thorpej x = tag | reg | 1; 210 1.18.2.2 thorpej 211 1.18.2.2 thorpej s = splhigh(); 212 1.18.2.2 thorpej 213 1.18.2.2 thorpej out32rb(pc->addr, x); 214 1.18.2.2 thorpej DELAY(10); 215 1.18.2.2 thorpej out32rb(pc->data, data); 216 1.18.2.2 thorpej DELAY(10); 217 1.18.2.2 thorpej out32rb(pc->addr, 0); 218 1.18.2.2 thorpej DELAY(10); 219 1.18.2.2 thorpej 220 1.18.2.2 thorpej splx(s); 221 1.18.2.2 thorpej } 222 1.18.2.2 thorpej 223 1.18.2.2 thorpej #define PCI_BANDIT 11 224 1.18.2.2 thorpej 225 1.18.2.2 thorpej #define PCI_REG_MODE_SELECT 0x50 226 1.18.2.2 thorpej 227 1.18.2.2 thorpej #define PCI_MODE_IO_COHERENT 0x040 /* I/O coherent */ 228 1.18.2.2 thorpej 229 1.18.2.2 thorpej void 230 1.18.2.2 thorpej bandit_init(sc) 231 1.18.2.2 thorpej struct bandit_softc *sc; 232 1.18.2.2 thorpej { 233 1.18.2.2 thorpej pci_chipset_tag_t pc = &sc->sc_pc; 234 1.18.2.2 thorpej pcitag_t tag; 235 1.18.2.2 thorpej u_int mode; 236 1.18.2.2 thorpej 237 1.18.2.2 thorpej tag = pci_make_tag(pc, pc->bus, PCI_BANDIT, 0); 238 1.18.2.2 thorpej if ((pci_conf_read(pc, tag, PCI_ID_REG) & 0xffff) == 0xffff) 239 1.18.2.2 thorpej return; 240 1.18.2.2 thorpej 241 1.18.2.2 thorpej mode = pci_conf_read(pc, tag, PCI_REG_MODE_SELECT); 242 1.18.2.2 thorpej 243 1.18.2.2 thorpej if ((mode & PCI_MODE_IO_COHERENT) == 0) { 244 1.18.2.2 thorpej mode |= PCI_MODE_IO_COHERENT; 245 1.18.2.2 thorpej pci_conf_write(pc, tag, PCI_REG_MODE_SELECT, mode); 246 1.18.2.2 thorpej } 247 1.18.2.2 thorpej } 248
Indexes created Sat Oct 18 17:09:52 GMT 2025