uninorth.c revision 1.8
1 /* $NetBSD: uninorth.c,v 1.8 2003/06/15 23:09:02 fvdl Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 Tsubai Masanari. 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 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/device.h> 31 #include <sys/systm.h> 32 33 #include <dev/pci/pcivar.h> 34 #include <dev/ofw/openfirm.h> 35 #include <dev/ofw/ofw_pci.h> 36 37 #include <machine/autoconf.h> 38 39 struct uninorth_softc { 40 struct device sc_dev; 41 struct pci_bridge sc_pc; 42 }; 43 44 void uninorth_attach __P((struct device *, struct device *, void *)); 45 int uninorth_match __P((struct device *, struct cfdata *, void *)); 46 int uninorth_print __P((void *, const char *)); 47 48 pcireg_t uninorth_conf_read __P((pci_chipset_tag_t, pcitag_t, int)); 49 void uninorth_conf_write __P((pci_chipset_tag_t, pcitag_t, int, pcireg_t)); 50 51 CFATTACH_DECL(uninorth, sizeof(struct uninorth_softc), 52 uninorth_match, uninorth_attach, NULL, NULL); 53 54 int 55 uninorth_match(parent, cf, aux) 56 struct device *parent; 57 struct cfdata *cf; 58 void *aux; 59 { 60 struct confargs *ca = aux; 61 char compat[32]; 62 63 if (strcmp(ca->ca_name, "pci") != 0) 64 return 0; 65 66 memset(compat, 0, sizeof(compat)); 67 OF_getprop(ca->ca_node, "compatible", compat, sizeof(compat)); 68 if (strcmp(compat, "uni-north") != 0) 69 return 0; 70 71 return 1; 72 } 73 74 void 75 uninorth_attach(parent, self, aux) 76 struct device *parent, *self; 77 void *aux; 78 { 79 struct uninorth_softc *sc = (void *)self; 80 pci_chipset_tag_t pc = &sc->sc_pc; 81 struct confargs *ca = aux; 82 struct pcibus_attach_args pba; 83 int len, child, node = ca->ca_node; 84 u_int32_t reg[2], busrange[2]; 85 struct ranges { 86 u_int32_t pci_hi, pci_mid, pci_lo; 87 u_int32_t host; 88 u_int32_t size_hi, size_lo; 89 } ranges[6], *rp = ranges; 90 91 printf("\n"); 92 93 /* UniNorth address */ 94 if (OF_getprop(node, "reg", reg, sizeof(reg)) < 8) 95 return; 96 97 /* PCI bus number */ 98 if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8) 99 return; 100 101 pc->node = node; 102 pc->addr = mapiodev(reg[0] + 0x800000, 4); 103 pc->data = mapiodev(reg[0] + 0xc00000, 8); 104 pc->bus = busrange[0]; 105 pc->conf_read = uninorth_conf_read; 106 pc->conf_write = uninorth_conf_write; 107 pc->memt = (bus_space_tag_t)0; 108 109 /* find i/o tag */ 110 len = OF_getprop(node, "ranges", ranges, sizeof(ranges)); 111 if (len == -1) 112 return; 113 while (len >= sizeof(ranges[0])) { 114 if ((rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) == 115 OFW_PCI_PHYS_HI_SPACE_IO) 116 pc->iot = (bus_space_tag_t)rp->host; 117 len -= sizeof(ranges[0]); 118 rp++; 119 } 120 121 /* XXX enable gmac ethernet */ 122 for (child = OF_child(node); child; child = OF_peer(child)) { 123 volatile int *gmac_gbclock_en = (void *)0xf8000020; 124 char compat[32]; 125 126 memset(compat, 0, sizeof(compat)); 127 OF_getprop(child, "compatible", compat, sizeof(compat)); 128 if (strcmp(compat, "gmac") == 0) 129 *gmac_gbclock_en |= 0x02; 130 } 131 132 memset(&pba, 0, sizeof(pba)); 133 pba.pba_busname = "pci"; 134 pba.pba_memt = pc->memt; 135 pba.pba_iot = pc->iot; 136 pba.pba_dmat = &pci_bus_dma_tag; 137 pba.pba_dmat64 = NULL; 138 pba.pba_bus = pc->bus; 139 pba.pba_bridgetag = NULL; 140 pba.pba_pc = pc; 141 pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 142 143 config_found(self, &pba, uninorth_print); 144 } 145 146 int 147 uninorth_print(aux, pnp) 148 void *aux; 149 const char *pnp; 150 { 151 struct pcibus_attach_args *pa = aux; 152 153 if (pnp) 154 aprint_normal("%s at %s", pa->pba_busname, pnp); 155 aprint_normal(" bus %d", pa->pba_bus); 156 return UNCONF; 157 } 158 159 pcireg_t 160 uninorth_conf_read(pc, tag, reg) 161 pci_chipset_tag_t pc; 162 pcitag_t tag; 163 int reg; 164 { 165 int32_t *daddr = pc->data; 166 pcireg_t data; 167 int bus, dev, func, s; 168 u_int32_t x; 169 170 /* UniNorth seems to have a 64bit data port */ 171 if (reg & 0x04) 172 daddr++; 173 174 pci_decompose_tag(pc, tag, &bus, &dev, &func); 175 176 /* 177 * bandit's minimum device number of the first bus is 11. 178 * So we behave as if there is no device when dev < 11. 179 */ 180 if (func > 7) 181 panic("pci_conf_read: func > 7"); 182 183 if (bus == pc->bus) { 184 if (dev < 11) 185 return 0xffffffff; 186 x = (1 << dev) | (func << 8) | reg; 187 } else 188 x = tag | reg | 1; 189 190 s = splhigh(); 191 192 out32rb(pc->addr, x); 193 in32rb(pc->addr); 194 data = 0xffffffff; 195 if (!badaddr(daddr, 4)) 196 data = in32rb(daddr); 197 out32rb(pc->addr, 0); 198 in32rb(pc->addr); 199 splx(s); 200 201 return data; 202 } 203 204 void 205 uninorth_conf_write(pc, tag, reg, data) 206 pci_chipset_tag_t pc; 207 pcitag_t tag; 208 int reg; 209 pcireg_t data; 210 { 211 int32_t *daddr = pc->data; 212 int bus, dev, func, s; 213 u_int32_t x; 214 215 /* UniNorth seems to have a 64bit data port */ 216 if (reg & 0x04) 217 daddr++; 218 219 pci_decompose_tag(pc, tag, &bus, &dev, &func); 220 221 if (func > 7) 222 panic("pci_conf_write: func > 7"); 223 224 if (bus == pc->bus) { 225 if (dev < 11) 226 panic("pci_conf_write: dev < 11"); 227 x = (1 << dev) | (func << 8) | reg; 228 } else 229 x = tag | reg | 1; 230 231 s = splhigh(); 232 233 out32rb(pc->addr, x); 234 in32rb(pc->addr); 235 out32rb(daddr, data); 236 out32rb(pc->addr, 0); 237 in32rb(pc->addr); 238 239 splx(s); 240 } 241
Indexes created Thu Sep 25 16:09:42 GMT 2025