1 /* $OpenBSD: if_gem_pci.c,v 1.30 2009/07/23 19:30:42 kettenis Exp $ */ 2 /* $NetBSD: if_gem_pci.c,v 1.1 2001/09/16 00:11:42 eeh Exp $ */ 3 4 /* 5 * 6 * Copyright (C) 2001 Eduardo Horvath. 7 * All rights reserved. 8 * 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 AUTHOR ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 */ 32 33 /* 34 * PCI bindings for Sun GEM ethernet controllers. 35 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/malloc.h> 40 #include <sys/kernel.h> 41 #include <sys/socket.h> 42 #include <sys/errno.h> 43 #include <sys/device.h> 44 45 #include <machine/endian.h> 46 47 #include <net/if.h> 48 #include <net/if_dl.h> 49 #include <net/if_media.h> 50 51 #ifdef INET 52 #include <netinet/in.h> 53 #include <netinet/if_ether.h> 54 #endif 55 56 #if NBPFILTER > 0 57 #include <net/bpf.h> 58 #endif 59 60 #include <machine/bus.h> 61 #include <machine/intr.h> 62 63 #ifdef __sparc64__ 64 #include <dev/ofw/openfirm.h> 65 #endif 66 67 #include <dev/mii/mii.h> 68 #include <dev/mii/miivar.h> 69 #include <dev/mii/mii_bitbang.h> 70 71 #include <dev/ic/gemreg.h> 72 #include <dev/ic/gemvar.h> 73 74 #include <dev/pci/pcivar.h> 75 #include <dev/pci/pcireg.h> 76 #include <dev/pci/pcidevs.h> 77 78 struct gem_pci_softc { 79 struct gem_softc gsc_gem; /* GEM device */ 80 bus_space_tag_t gsc_memt; 81 bus_space_handle_t gsc_memh; 82 void *gsc_ih; 83 }; 84 85 int gem_match_pci(struct device *, void *, void *); 86 void gem_attach_pci(struct device *, struct device *, void *); 87 int gem_pci_enaddr(struct gem_softc *, struct pci_attach_args *); 88 89 struct cfattach gem_pci_ca = { 90 sizeof(struct gem_pci_softc), gem_match_pci, gem_attach_pci 91 }; 92 93 /* 94 * Attach routines need to be split out to different bus-specific files. 95 */ 96 97 const struct pci_matchid gem_pci_devices[] = { 98 { PCI_VENDOR_SUN, PCI_PRODUCT_SUN_ERINETWORK }, 99 { PCI_VENDOR_SUN, PCI_PRODUCT_SUN_GEMNETWORK }, 100 { PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_INTREPID2_GMAC }, 101 { PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_K2_GMAC }, 102 { PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_PANGEA_GMAC }, 103 { PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_SHASTA_GMAC }, 104 { PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_UNINORTHGMAC }, 105 { PCI_VENDOR_APPLE, PCI_PRODUCT_APPLE_UNINORTH2GMAC }, 106 }; 107 108 int 109 gem_match_pci(struct device *parent, void *cf, void *aux) 110 { 111 return (pci_matchbyid((struct pci_attach_args *)aux, gem_pci_devices, 112 sizeof(gem_pci_devices)/sizeof(gem_pci_devices[0]))); 113 } 114 115 #define PROMHDR_PTR_DATA 0x18 116 #define PROMDATA_PTR_VPD 0x08 117 #define PROMDATA_DATA2 0x0a 118 119 static const u_int8_t gem_promhdr[] = { 0x55, 0xaa }; 120 static const u_int8_t gem_promdat[] = { 121 'P', 'C', 'I', 'R', 122 PCI_VENDOR_SUN & 0xff, PCI_VENDOR_SUN >> 8, 123 PCI_PRODUCT_SUN_GEMNETWORK & 0xff, PCI_PRODUCT_SUN_GEMNETWORK >> 8 124 }; 125 126 static const u_int8_t gem_promdat2[] = { 127 0x18, 0x00, /* structure length */ 128 0x00, /* structure revision */ 129 0x00, /* interface revision */ 130 PCI_SUBCLASS_NETWORK_ETHERNET, /* subclass code */ 131 PCI_CLASS_NETWORK /* class code */ 132 }; 133 134 int 135 gem_pci_enaddr(struct gem_softc *sc, struct pci_attach_args *pa) 136 { 137 struct pci_vpd *vpd; 138 bus_space_handle_t romh; 139 bus_space_tag_t romt; 140 bus_size_t romsize = 0; 141 u_int8_t buf[32]; 142 pcireg_t address; 143 int dataoff, vpdoff; 144 int rv = -1; 145 146 if (pci_mapreg_map(pa, PCI_ROM_REG, PCI_MAPREG_TYPE_MEM, 0, 147 &romt, &romh, 0, &romsize, 0)) 148 return (-1); 149 150 address = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ROM_REG); 151 address |= PCI_ROM_ENABLE; 152 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_ROM_REG, address); 153 154 bus_space_read_region_1(romt, romh, 0, buf, sizeof(buf)); 155 if (bcmp(buf, gem_promhdr, sizeof(gem_promhdr))) 156 goto fail; 157 158 dataoff = buf[PROMHDR_PTR_DATA] | (buf[PROMHDR_PTR_DATA + 1] << 8); 159 if (dataoff < 0x1c) 160 goto fail; 161 162 bus_space_read_region_1(romt, romh, dataoff, buf, sizeof(buf)); 163 if (bcmp(buf, gem_promdat, sizeof(gem_promdat)) || 164 bcmp(buf + PROMDATA_DATA2, gem_promdat2, sizeof(gem_promdat2))) 165 goto fail; 166 167 vpdoff = buf[PROMDATA_PTR_VPD] | (buf[PROMDATA_PTR_VPD + 1] << 8); 168 if (vpdoff < 0x1c) 169 goto fail; 170 171 bus_space_read_region_1(romt, romh, vpdoff, buf, sizeof(buf)); 172 173 /* 174 * The VPD of gem is not in PCI 2.2 standard format. The length 175 * in the resource header is in big endian. 176 */ 177 vpd = (struct pci_vpd *)(buf + 3); 178 if (!PCI_VPDRES_ISLARGE(buf[0]) || 179 PCI_VPDRES_LARGE_NAME(buf[0]) != PCI_VPDRES_TYPE_VPD) 180 goto fail; 181 if (vpd->vpd_key0 != 'N' || vpd->vpd_key1 != 'A') 182 goto fail; 183 184 bcopy(buf + 6, sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN); 185 rv = 0; 186 187 fail: 188 if (romsize != 0) 189 bus_space_unmap(romt, romh, romsize); 190 191 address = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ROM_REG); 192 address &= ~PCI_ROM_ENABLE; 193 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_ROM_REG, address); 194 195 return (rv); 196 } 197 198 void 199 gem_attach_pci(struct device *parent, struct device *self, void *aux) 200 { 201 struct pci_attach_args *pa = aux; 202 struct gem_pci_softc *gsc = (void *)self; 203 struct gem_softc *sc = &gsc->gsc_gem; 204 pci_intr_handle_t ih; 205 #ifdef __sparc64__ 206 /* XXX the following declarations should be elsewhere */ 207 extern void myetheraddr(u_char *); 208 #endif 209 const char *intrstr = NULL; 210 bus_size_t size; 211 int type, gotenaddr = 0; 212 213 if (pa->pa_memt) { 214 type = PCI_MAPREG_TYPE_MEM; 215 sc->sc_bustag = pa->pa_memt; 216 } else { 217 type = PCI_MAPREG_TYPE_IO; 218 sc->sc_bustag = pa->pa_iot; 219 } 220 221 sc->sc_dmatag = pa->pa_dmat; 222 223 sc->sc_pci = 1; /* XXXXX should all be done in bus_dma. */ 224 225 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK) 226 sc->sc_variant = GEM_SUN_GEM; 227 else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK) 228 sc->sc_variant = GEM_SUN_ERI; 229 else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_INTREPID2_GMAC) 230 sc->sc_variant = GEM_APPLE_GMAC; 231 else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_PANGEA_GMAC) 232 sc->sc_variant = GEM_APPLE_GMAC; 233 else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_SHASTA_GMAC) 234 sc->sc_variant = GEM_APPLE_GMAC; 235 else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_UNINORTHGMAC) 236 sc->sc_variant = GEM_APPLE_GMAC; 237 else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_UNINORTH2GMAC) 238 sc->sc_variant = GEM_APPLE_GMAC; 239 else if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_K2_GMAC) 240 sc->sc_variant = GEM_APPLE_K2_GMAC; 241 242 #define PCI_GEM_BASEADDR 0x10 243 if (pci_mapreg_map(pa, PCI_GEM_BASEADDR, type, 0, 244 &gsc->gsc_memt, &gsc->gsc_memh, NULL, &size, 0) != 0) { 245 printf(": can't map registers\n"); 246 return; 247 } 248 249 sc->sc_bustag = gsc->gsc_memt; 250 sc->sc_h1 = gsc->gsc_memh; 251 252 if (bus_space_subregion(sc->sc_bustag, sc->sc_h1, 253 GEM_PCI_BANK2_OFFSET, GEM_PCI_BANK2_SIZE, &sc->sc_h2)) { 254 printf(": unable to create bank 2 subregion\n"); 255 bus_space_unmap(gsc->gsc_memt, gsc->gsc_memh, size); 256 return; 257 } 258 259 if (gem_pci_enaddr(sc, pa) == 0) 260 gotenaddr = 1; 261 262 #ifdef __sparc64__ 263 if (!gotenaddr) { 264 if (OF_getprop(PCITAG_NODE(pa->pa_tag), "local-mac-address", 265 sc->sc_arpcom.ac_enaddr, ETHER_ADDR_LEN) <= 0) 266 myetheraddr(sc->sc_arpcom.ac_enaddr); 267 gotenaddr = 1; 268 } 269 #endif 270 #ifdef __powerpc__ 271 if (!gotenaddr) { 272 pci_ether_hw_addr(pa->pa_pc, sc->sc_arpcom.ac_enaddr); 273 gotenaddr = 1; 274 } 275 #endif 276 277 sc->sc_burst = 16; /* XXX */ 278 279 if (pci_intr_map(pa, &ih) != 0) { 280 printf(": couldn't map interrupt\n"); 281 bus_space_unmap(gsc->gsc_memt, gsc->gsc_memh, size); 282 return; 283 } 284 intrstr = pci_intr_string(pa->pa_pc, ih); 285 gsc->gsc_ih = pci_intr_establish(pa->pa_pc, 286 ih, IPL_NET, gem_intr, sc, self->dv_xname); 287 if (gsc->gsc_ih == NULL) { 288 printf(": couldn't establish interrupt"); 289 if (intrstr != NULL) 290 printf(" at %s", intrstr); 291 printf("\n"); 292 bus_space_unmap(gsc->gsc_memt, gsc->gsc_memh, size); 293 return; 294 } 295 296 printf(": %s", intrstr); 297 298 /* 299 * call the main configure 300 */ 301 gem_config(sc); 302 } 303