1 /* $NetBSD: makphy.c,v 1.3 2001/08/25 18:04:01 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(struct device *, struct cfdata *, void *); 91 void makphyattach(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(struct mii_softc *, struct mii_data *, int); 99 void makphy_status(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(struct device *parent, struct cfdata *match, void *aux) 115 { 116 struct mii_attach_args *ma = aux; 117 118 if (mii_phy_match(ma, makphys) != NULL) 119 return (10); 120 121 return (0); 122 } 123 124 void 125 makphyattach(struct device *parent, struct device *self, void *aux) 126 { 127 struct mii_softc *sc = (struct mii_softc *)self; 128 struct mii_attach_args *ma = aux; 129 struct mii_data *mii = ma->mii_data; 130 const struct mii_phydesc *mpd; 131 132 mpd = mii_phy_match(ma, makphys); 133 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 134 135 sc->mii_inst = mii->mii_instance; 136 sc->mii_phy = ma->mii_phyno; 137 sc->mii_funcs = &makphy_funcs; 138 sc->mii_pdata = mii; 139 sc->mii_flags = mii->mii_flags; 140 sc->mii_anegticks = 5; 141 142 PHY_RESET(sc); 143 144 sc->mii_capabilities = 145 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 146 if (sc->mii_capabilities & BMSR_EXTSTAT) 147 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 148 149 printf("%s: ", sc->mii_dev.dv_xname); 150 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 151 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 152 printf("no media present"); 153 else 154 mii_phy_add_media(sc); 155 printf("\n"); 156 } 157 158 int 159 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 160 { 161 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 162 int reg; 163 164 switch (cmd) { 165 case MII_POLLSTAT: 166 /* 167 * If we're not polling our PHY instance, just return. 168 */ 169 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 170 return (0); 171 break; 172 173 case MII_MEDIACHG: 174 /* 175 * If the media indicates a different PHY instance, 176 * isolate ourselves. 177 */ 178 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 179 reg = PHY_READ(sc, MII_BMCR); 180 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 181 return (0); 182 } 183 184 /* 185 * If the interface is not up, don't do anything. 186 */ 187 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 188 break; 189 190 mii_phy_setmedia(sc); 191 break; 192 193 case MII_TICK: 194 /* 195 * If we're not currently selected, just return. 196 */ 197 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 198 return (0); 199 200 if (mii_phy_tick(sc) == EJUSTRETURN) 201 return (0); 202 break; 203 204 case MII_DOWN: 205 mii_phy_down(sc); 206 return (0); 207 } 208 209 /* Update the media status. */ 210 mii_phy_status(sc); 211 212 /* Callback if something changed. */ 213 mii_phy_update(sc, cmd); 214 return (0); 215 } 216 217 void 218 makphy_status(struct mii_softc *sc) 219 { 220 struct mii_data *mii = sc->mii_pdata; 221 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 222 int bmcr, pssr, gtsr; 223 224 mii->mii_media_status = IFM_AVALID; 225 mii->mii_media_active = IFM_ETHER; 226 227 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 228 229 if (pssr & PSSR_LINK) 230 mii->mii_media_status |= IFM_ACTIVE; 231 232 bmcr = PHY_READ(sc, MII_BMCR); 233 if (bmcr & BMCR_ISO) { 234 mii->mii_media_active |= IFM_NONE; 235 mii->mii_media_status = 0; 236 return; 237 } 238 239 if (bmcr & BMCR_LOOP) 240 mii->mii_media_active |= IFM_LOOP; 241 242 if (bmcr & BMCR_AUTOEN) { 243 /* 244 * The media status bits are only valid of autonegotiation 245 * has completed (or it's disabled). 246 */ 247 if ((pssr & PSSR_RESOLVED) == 0) { 248 /* Erg, still trying, I guess... */ 249 mii->mii_media_active |= IFM_NONE; 250 return; 251 } 252 253 switch (PSSR_SPEED_get(pssr)) { 254 case SPEED_1000: 255 mii->mii_media_active |= IFM_1000_T; 256 gtsr = PHY_READ(sc, MII_100T2SR); 257 if (gtsr & GTSR_MS_RES) 258 mii->mii_media_active |= IFM_ETH_MASTER; 259 break; 260 261 case SPEED_100: 262 mii->mii_media_active |= IFM_100_TX; 263 break; 264 265 case SPEED_10: 266 mii->mii_media_active |= IFM_10_T; 267 break; 268 269 default: 270 mii->mii_media_active |= IFM_NONE; 271 mii->mii_media_status = 0; 272 return; 273 } 274 275 if (pssr & PSSR_DUPLEX) 276 mii->mii_media_active |= IFM_FDX; 277 } else 278 mii->mii_media_active = ife->ifm_media; 279 } 280