uninorth.c revision 1.9
1 /* $NetBSD: uninorth.c,v 1.9 2003/07/15 02:43:34 lukem 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/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: uninorth.c,v 1.9 2003/07/15 02:43:34 lukem Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/device.h> 34 #include <sys/systm.h> 35 36 #include <dev/pci/pcivar.h> 37 #include <dev/ofw/openfirm.h> 38 #include <dev/ofw/ofw_pci.h> 39 40 #include <machine/autoconf.h> 41 42 struct uninorth_softc { 43 struct device sc_dev; 44 struct pci_bridge sc_pc; 45 }; 46 47 void uninorth_attach __P((struct device *, struct device *, void *)); 48 int uninorth_match __P((struct device *, struct cfdata *, void *)); 49 int uninorth_print __P((void *, const char *)); 50 51 pcireg_t uninorth_conf_read __P((pci_chipset_tag_t, pcitag_t, int)); 52 void uninorth_conf_write __P((pci_chipset_tag_t, pcitag_t, int, pcireg_t)); 53 54 CFATTACH_DECL(uninorth, sizeof(struct uninorth_softc), 55 uninorth_match, uninorth_attach, NULL, NULL); 56 57 int 58 uninorth_match(parent, cf, aux) 59 struct device *parent; 60 struct cfdata *cf; 61 void *aux; 62 { 63 struct confargs *ca = aux; 64 char compat[32]; 65 66 if (strcmp(ca->ca_name, "pci") != 0) 67 return 0; 68 69 memset(compat, 0, sizeof(compat)); 70 OF_getprop(ca->ca_node, "compatible", compat, sizeof(compat)); 71 if (strcmp(compat, "uni-north") != 0) 72 return 0; 73 74 return 1; 75 } 76 77 void 78 uninorth_attach(parent, self, aux) 79 struct device *parent, *self; 80 void *aux; 81 { 82 struct uninorth_softc *sc = (void *)self; 83 pci_chipset_tag_t pc = &sc->sc_pc; 84 struct confargs *ca = aux; 85 struct pcibus_attach_args pba; 86 int len, child, node = ca->ca_node; 87 u_int32_t reg[2], busrange[2]; 88 struct ranges { 89 u_int32_t pci_hi, pci_mid, pci_lo; 90 u_int32_t host; 91 u_int32_t size_hi, size_lo; 92 } ranges[6], *rp = ranges; 93 94 printf("\n"); 95 96 /* UniNorth address */ 97 if (OF_getprop(node, "reg", reg, sizeof(reg)) < 8) 98 return; 99 100 /* PCI bus number */ 101 if (OF_getprop(node, "bus-range", busrange, sizeof(busrange)) != 8) 102 return; 103 104 pc->node = node; 105 pc->addr = mapiodev(reg[0] + 0x800000, 4); 106 pc->data = mapiodev(reg[0] + 0xc00000, 8); 107 pc->bus = busrange[0]; 108 pc->conf_read = uninorth_conf_read; 109 pc->conf_write = uninorth_conf_write; 110 pc->memt = (bus_space_tag_t)0; 111 112 /* find i/o tag */ 113 len = OF_getprop(node, "ranges", ranges, sizeof(ranges)); 114 if (len == -1) 115 return; 116 while (len >= sizeof(ranges[0])) { 117 if ((rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) == 118 OFW_PCI_PHYS_HI_SPACE_IO) 119 pc->iot = (bus_space_tag_t)rp->host; 120 len -= sizeof(ranges[0]); 121 rp++; 122 } 123 124 /* XXX enable gmac ethernet */ 125 for (child = OF_child(node); child; child = OF_peer(child)) { 126 volatile int *gmac_gbclock_en = (void *)0xf8000020; 127 char compat[32]; 128 129 memset(compat, 0, sizeof(compat)); 130 OF_getprop(child, "compatible", compat, sizeof(compat)); 131 if (strcmp(compat, "gmac") == 0) 132 *gmac_gbclock_en |= 0x02; 133 } 134 135 memset(&pba, 0, sizeof(pba)); 136 pba.pba_busname = "pci"; 137 pba.pba_memt = pc->memt; 138 pba.pba_iot = pc->iot; 139 pba.pba_dmat = &pci_bus_dma_tag; 140 pba.pba_dmat64 = NULL; 141 pba.pba_bus = pc->bus; 142 pba.pba_bridgetag = NULL; 143 pba.pba_pc = pc; 144 pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 145 146 config_found(self, &pba, uninorth_print); 147 } 148 149 int 150 uninorth_print(aux, pnp) 151 void *aux; 152 const char *pnp; 153 { 154 struct pcibus_attach_args *pa = aux; 155 156 if (pnp) 157 aprint_normal("%s at %s", pa->pba_busname, pnp); 158 aprint_normal(" bus %d", pa->pba_bus); 159 return UNCONF; 160 } 161 162 pcireg_t 163 uninorth_conf_read(pc, tag, reg) 164 pci_chipset_tag_t pc; 165 pcitag_t tag; 166 int reg; 167 { 168 int32_t *daddr = pc->data; 169 pcireg_t data; 170 int bus, dev, func, s; 171 u_int32_t x; 172 173 /* UniNorth seems to have a 64bit data port */ 174 if (reg & 0x04) 175 daddr++; 176 177 pci_decompose_tag(pc, tag, &bus, &dev, &func); 178 179 /* 180 * bandit's minimum device number of the first bus is 11. 181 * So we behave as if there is no device when dev < 11. 182 */ 183 if (func > 7) 184 panic("pci_conf_read: func > 7"); 185 186 if (bus == pc->bus) { 187 if (dev < 11) 188 return 0xffffffff; 189 x = (1 << dev) | (func << 8) | reg; 190 } else 191 x = tag | reg | 1; 192 193 s = splhigh(); 194 195 out32rb(pc->addr, x); 196 in32rb(pc->addr); 197 data = 0xffffffff; 198 if (!badaddr(daddr, 4)) 199 data = in32rb(daddr); 200 out32rb(pc->addr, 0); 201 in32rb(pc->addr); 202 splx(s); 203 204 return data; 205 } 206 207 void 208 uninorth_conf_write(pc, tag, reg, data) 209 pci_chipset_tag_t pc; 210 pcitag_t tag; 211 int reg; 212 pcireg_t data; 213 { 214 int32_t *daddr = pc->data; 215 int bus, dev, func, s; 216 u_int32_t x; 217 218 /* UniNorth seems to have a 64bit data port */ 219 if (reg & 0x04) 220 daddr++; 221 222 pci_decompose_tag(pc, tag, &bus, &dev, &func); 223 224 if (func > 7) 225 panic("pci_conf_write: func > 7"); 226 227 if (bus == pc->bus) { 228 if (dev < 11) 229 panic("pci_conf_write: dev < 11"); 230 x = (1 << dev) | (func << 8) | reg; 231 } else 232 x = tag | reg | 1; 233 234 s = splhigh(); 235 236 out32rb(pc->addr, x); 237 in32rb(pc->addr); 238 out32rb(daddr, data); 239 out32rb(pc->addr, 0); 240 in32rb(pc->addr); 241 242 splx(s); 243 } 244
Indexes created Thu Sep 25 16:09:42 GMT 2025