1 /* $NetBSD: makphy.c,v 1.2 2001/07/20 07:07:05 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Manuel Bouyer. 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 /* 70 * Driver for the Marvell 88E1000 ``Alaska'' 10/100/1000 PHY. 71 */ 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/kernel.h> 76 #include <sys/device.h> 77 #include <sys/malloc.h> 78 #include <sys/socket.h> 79 #include <sys/errno.h> 80 81 #include <net/if.h> 82 #include <net/if_media.h> 83 84 #include <dev/mii/mii.h> 85 #include <dev/mii/miivar.h> 86 #include <dev/mii/miidevs.h> 87 88 #include <dev/mii/makphyreg.h> 89 90 int makphymatch __P((struct device *, struct cfdata *, void *)); 91 void makphyattach __P((struct device *, struct device *, void *)); 92 93 struct cfattach makphy_ca = { 94 sizeof(struct mii_softc), makphymatch, makphyattach, 95 mii_phy_detach, mii_phy_activate 96 }; 97 98 int makphy_service __P((struct mii_softc *, struct mii_data *, int)); 99 void makphy_status __P((struct mii_softc *)); 100 101 const struct mii_phy_funcs makphy_funcs = { 102 makphy_service, makphy_status, mii_phy_reset, 103 }; 104 105 const struct mii_phydesc makphys[] = { 106 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000, 107 MII_STR_xxMARVELL_E1000 }, 108 109 { 0, 0, 110 NULL }, 111 }; 112 113 int 114 makphymatch(parent, match, aux) 115 struct device *parent; 116 struct cfdata *match; 117 void *aux; 118 { 119 struct mii_attach_args *ma = aux; 120 121 if (mii_phy_match(ma, makphys) != NULL) 122 return (10); 123 124 return (0); 125 } 126 127 void 128 makphyattach(parent, self, aux) 129 struct device *parent, *self; 130 void *aux; 131 { 132 struct mii_softc *sc = (struct mii_softc *)self; 133 struct mii_attach_args *ma = aux; 134 struct mii_data *mii = ma->mii_data; 135 const struct mii_phydesc *mpd; 136 137 mpd = mii_phy_match(ma, makphys); 138 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 139 140 sc->mii_inst = mii->mii_instance; 141 sc->mii_phy = ma->mii_phyno; 142 sc->mii_funcs = &makphy_funcs; 143 sc->mii_pdata = mii; 144 sc->mii_flags = mii->mii_flags; 145 sc->mii_anegticks = 5; 146 147 PHY_RESET(sc); 148 149 sc->mii_capabilities = 150 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 151 if (sc->mii_capabilities & BMSR_EXTSTAT) 152 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 153 154 printf("%s: ", sc->mii_dev.dv_xname); 155 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 156 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 157 printf("no media present"); 158 else 159 mii_phy_add_media(sc); 160 printf("\n"); 161 } 162 163 int 164 makphy_service(sc, mii, cmd) 165 struct mii_softc *sc; 166 struct mii_data *mii; 167 int cmd; 168 { 169 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 170 int reg; 171 172 switch (cmd) { 173 case MII_POLLSTAT: 174 /* 175 * If we're not polling our PHY instance, just return. 176 */ 177 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 178 return (0); 179 break; 180 181 case MII_MEDIACHG: 182 /* 183 * If the media indicates a different PHY instance, 184 * isolate ourselves. 185 */ 186 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 187 reg = PHY_READ(sc, MII_BMCR); 188 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 189 return (0); 190 } 191 192 /* 193 * If the interface is not up, don't do anything. 194 */ 195 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 196 break; 197 198 mii_phy_setmedia(sc); 199 break; 200 201 case MII_TICK: 202 /* 203 * If we're not currently selected, just return. 204 */ 205 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 206 return (0); 207 208 if (mii_phy_tick(sc) == EJUSTRETURN) 209 return (0); 210 break; 211 212 case MII_DOWN: 213 mii_phy_down(sc); 214 return (0); 215 } 216 217 /* Update the media status. */ 218 mii_phy_status(sc); 219 220 /* Callback if something changed. */ 221 mii_phy_update(sc, cmd); 222 return (0); 223 } 224 225 void 226 makphy_status(sc) 227 struct mii_softc *sc; 228 { 229 struct mii_data *mii = sc->mii_pdata; 230 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 231 int bmcr, pssr, gtsr; 232 233 mii->mii_media_status = IFM_AVALID; 234 mii->mii_media_active = IFM_ETHER; 235 236 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 237 238 if (pssr & PSSR_LINK) 239 mii->mii_media_status |= IFM_ACTIVE; 240 241 bmcr = PHY_READ(sc, MII_BMCR); 242 if (bmcr & BMCR_ISO) { 243 mii->mii_media_active |= IFM_NONE; 244 mii->mii_media_status = 0; 245 return; 246 } 247 248 if (bmcr & BMCR_LOOP) 249 mii->mii_media_active |= IFM_LOOP; 250 251 if (bmcr & BMCR_AUTOEN) { 252 /* 253 * The media status bits are only valid of autonegotiation 254 * has completed (or it's disabled). 255 */ 256 if ((pssr & PSSR_RESOLVED) == 0) { 257 /* Erg, still trying, I guess... */ 258 mii->mii_media_active |= IFM_NONE; 259 return; 260 } 261 262 switch (PSSR_SPEED_get(pssr)) { 263 case SPEED_1000: 264 mii->mii_media_active |= IFM_1000_T; 265 gtsr = PHY_READ(sc, MII_100T2SR); 266 if (gtsr & GTSR_MS_RES) 267 mii->mii_media_active |= IFM_ETH_MASTER; 268 break; 269 270 case SPEED_100: 271 mii->mii_media_active |= IFM_100_TX; 272 break; 273 274 case SPEED_10: 275 mii->mii_media_active |= IFM_10_T; 276 break; 277 278 default: 279 mii->mii_media_active |= IFM_NONE; 280 mii->mii_media_status = 0; 281 return; 282 } 283 284 if (pssr & PSSR_DUPLEX) 285 mii->mii_media_active |= IFM_FDX; 286 } else 287 mii->mii_media_active = ife->ifm_media; 288 } 289