makphy.c revision 1.41
1 /* $NetBSD: makphy.c,v 1.41 2016/07/07 06:55:41 msaitoh 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 */ 56 57 /* 58 * Driver for the Marvell 88E1000 ``Alaska'' 10/100/1000 PHY. 59 */ 60 61 #include <sys/cdefs.h> 62 __KERNEL_RCSID(0, "$NetBSD: makphy.c,v 1.41 2016/07/07 06:55:41 msaitoh Exp $"); 63 64 #include <sys/param.h> 65 #include <sys/systm.h> 66 #include <sys/kernel.h> 67 #include <sys/device.h> 68 #include <sys/socket.h> 69 #include <sys/errno.h> 70 71 #include <net/if.h> 72 #include <net/if_media.h> 73 74 #include <dev/mii/mii.h> 75 #include <dev/mii/miivar.h> 76 #include <dev/mii/miidevs.h> 77 78 #include <dev/mii/makphyreg.h> 79 80 static int makphymatch(device_t, cfdata_t, void *); 81 static void makphyattach(device_t, device_t, void *); 82 83 CFATTACH_DECL_NEW(makphy, sizeof(struct mii_softc), 84 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); 85 86 static int makphy_service(struct mii_softc *, struct mii_data *, int); 87 static void makphy_status(struct mii_softc *); 88 static void makphy_reset(struct mii_softc *); 89 90 static const struct mii_phy_funcs makphy_funcs = { 91 makphy_service, makphy_status, makphy_reset, 92 }; 93 94 static const struct mii_phydesc makphys[] = { 95 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 96 MII_STR_xxMARVELL_E1000_3 }, 97 98 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 99 MII_STR_xxMARVELL_E1000_5 }, 100 101 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 102 MII_STR_xxMARVELL_E1011 }, 103 104 /* XXX: reported not to work on eg. HP XW9400 */ 105 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149, 106 MII_STR_xxMARVELL_E1149 }, 107 108 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149R, 109 MII_STR_xxMARVELL_E1149R }, 110 111 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 112 MII_STR_xxMARVELL_E1111 }, 113 114 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 115 MII_STR_xxMARVELL_E1116 }, 116 117 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, 118 MII_STR_xxMARVELL_E1145 }, 119 120 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R, 121 MII_STR_xxMARVELL_E1116R }, 122 123 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R_29, 124 MII_STR_xxMARVELL_E1116R_29 }, 125 126 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1543, 127 MII_STR_xxMARVELL_E1543 }, 128 129 { 0, 0, 130 NULL }, 131 }; 132 133 static int 134 makphymatch(device_t parent, cfdata_t match, void *aux) 135 { 136 struct mii_attach_args *ma = aux; 137 138 if (mii_phy_match(ma, makphys) != NULL) 139 return (10); 140 141 return (0); 142 } 143 144 static void 145 makphyattach(device_t parent, device_t self, void *aux) 146 { 147 struct mii_softc *sc = device_private(self); 148 struct mii_attach_args *ma = aux; 149 struct mii_data *mii = ma->mii_data; 150 const struct mii_phydesc *mpd; 151 152 mpd = mii_phy_match(ma, makphys); 153 aprint_naive(": Media interface\n"); 154 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 155 156 sc->mii_dev = self; 157 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 158 sc->mii_inst = mii->mii_instance; 159 sc->mii_phy = ma->mii_phyno; 160 sc->mii_funcs = &makphy_funcs; 161 sc->mii_pdata = mii; 162 sc->mii_flags = ma->mii_flags; 163 sc->mii_anegticks = MII_ANEGTICKS; 164 165 switch (sc->mii_mpd_model) { 166 case MII_MODEL_xxMARVELL_E1011: 167 case MII_MODEL_xxMARVELL_E1112: 168 if (PHY_READ(sc, MII_MAKPHY_ESSR) & ESSR_FIBER_LINK) 169 sc->mii_flags |= MIIF_HAVEFIBER; 170 break; 171 case MII_MODEL_xxMARVELL_E1149: 172 case MII_MODEL_xxMARVELL_E1149R: 173 /* 174 * Some 88E1149 PHY's page select is initialized to 175 * point to other bank instead of copper/fiber bank 176 * which in turn resulted in wrong registers were 177 * accessed during PHY operation. It is believed that 178 * page 0 should be used for copper PHY so reinitialize 179 * MII_MAKPHY_EADR to select default copper PHY. If parent 180 * device know the type of PHY(either copper or fiber), 181 * that information should be used to select default 182 * type of PHY. 183 */ 184 PHY_WRITE(sc, MII_MAKPHY_EADR, 0); 185 break; 186 default: 187 break; 188 } 189 190 PHY_RESET(sc); 191 192 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 193 if (sc->mii_capabilities & BMSR_EXTSTAT) 194 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 195 196 aprint_normal_dev(self, ""); 197 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 198 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 199 aprint_error("no media present"); 200 else 201 mii_phy_add_media(sc); 202 aprint_normal("\n"); 203 } 204 205 static void 206 makphy_reset(struct mii_softc *sc) 207 { 208 uint16_t pscr; 209 210 /* Assert CRS on transmit */ 211 pscr = PHY_READ(sc, MII_MAKPHY_PSCR); 212 PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); 213 214 mii_phy_reset(sc); 215 } 216 217 static int 218 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 219 { 220 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 221 int reg; 222 223 switch (cmd) { 224 case MII_POLLSTAT: 225 /* 226 * If we're not polling our PHY instance, just return. 227 */ 228 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 229 return (0); 230 break; 231 232 case MII_MEDIACHG: 233 /* 234 * If the media indicates a different PHY instance, 235 * isolate ourselves. 236 */ 237 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 238 reg = PHY_READ(sc, MII_BMCR); 239 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 240 return (0); 241 } 242 243 /* 244 * If the interface is not up, don't do anything. 245 */ 246 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 247 break; 248 249 mii_phy_setmedia(sc); 250 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 251 /* 252 * when not in auto mode, we need to restart nego 253 * anyway, or a switch from a fixed mode to another 254 * fixed mode may not be seen by the switch. 255 */ 256 PHY_WRITE(sc, MII_BMCR, 257 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 258 } 259 break; 260 261 case MII_TICK: 262 /* 263 * If we're not currently selected, just return. 264 */ 265 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 266 return (0); 267 268 if (mii_phy_tick(sc) == EJUSTRETURN) 269 return (0); 270 break; 271 272 case MII_DOWN: 273 mii_phy_down(sc); 274 return (0); 275 } 276 277 /* Update the media status. */ 278 mii_phy_status(sc); 279 280 /* Callback if something changed. */ 281 mii_phy_update(sc, cmd); 282 return (0); 283 } 284 285 static void 286 makphy_status(struct mii_softc *sc) 287 { 288 struct mii_data *mii = sc->mii_pdata; 289 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 290 int bmcr, pssr, gtsr; 291 292 mii->mii_media_status = IFM_AVALID; 293 mii->mii_media_active = IFM_ETHER; 294 295 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 296 297 if (pssr & PSSR_LINK) 298 mii->mii_media_status |= IFM_ACTIVE; 299 300 bmcr = PHY_READ(sc, MII_BMCR); 301 if (bmcr & BMCR_ISO) { 302 mii->mii_media_active |= IFM_NONE; 303 mii->mii_media_status = 0; 304 return; 305 } 306 307 if (bmcr & BMCR_LOOP) 308 mii->mii_media_active |= IFM_LOOP; 309 310 if (bmcr & BMCR_AUTOEN) { 311 /* 312 * The media status bits are only valid of autonegotiation 313 * has completed (or it's disabled). 314 */ 315 if ((pssr & PSSR_RESOLVED) == 0) { 316 /* Erg, still trying, I guess... */ 317 mii->mii_media_active |= IFM_NONE; 318 return; 319 } 320 321 switch (PSSR_SPEED_get(pssr)) { 322 case SPEED_1000: 323 mii->mii_media_active |= IFM_1000_T; 324 gtsr = PHY_READ(sc, MII_100T2SR); 325 if (gtsr & GTSR_MS_RES) 326 mii->mii_media_active |= IFM_ETH_MASTER; 327 break; 328 329 case SPEED_100: 330 mii->mii_media_active |= IFM_100_TX; 331 break; 332 333 case SPEED_10: 334 mii->mii_media_active |= IFM_10_T; 335 break; 336 337 default: 338 mii->mii_media_active |= IFM_NONE; 339 mii->mii_media_status = 0; 340 return; 341 } 342 343 if (pssr & PSSR_DUPLEX) 344 mii->mii_media_active |= 345 IFM_FDX | mii_phy_flowstatus(sc); 346 else 347 mii->mii_media_active |= IFM_HDX; 348 } else 349 mii->mii_media_active = ife->ifm_media; 350 } 351
Indexes created Tue Sep 23 14:10:03 GMT 2025