makphy.c revision 1.42.8.2
1 /* $NetBSD: makphy.c,v 1.42.8.2 2019/03/07 17:19:38 martin 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 1.42.8.2 2019/03/07 17:19:38 martin 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_MARVELL, MII_MODEL_MARVELL_E1000_0, 96 MII_STR_MARVELL_E1000_0 }, 97 98 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_3, 99 MII_STR_MARVELL_E1000_3 }, 100 101 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_5, 102 MII_STR_MARVELL_E1000_5 }, 103 104 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_6, 105 MII_STR_MARVELL_E1000_6 }, 106 107 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 108 MII_STR_xxMARVELL_E1000_3 }, 109 110 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 111 MII_STR_xxMARVELL_E1000_5 }, 112 113 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000S, 114 MII_STR_xxMARVELL_E1000S }, 115 116 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 117 MII_STR_xxMARVELL_E1011 }, 118 119 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 120 MII_STR_xxMARVELL_E1111 }, 121 122 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1112, 123 MII_STR_xxMARVELL_E1112 }, 124 125 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 126 MII_STR_xxMARVELL_E1116 }, 127 128 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R, 129 MII_STR_xxMARVELL_E1116R }, 130 131 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1318S, 132 MII_STR_xxMARVELL_E1318S }, 133 134 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1118, 135 MII_STR_xxMARVELL_E1118 }, 136 137 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, 138 MII_STR_xxMARVELL_E1145 }, 139 140 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149, 141 MII_STR_xxMARVELL_E1149 }, 142 143 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149R, 144 MII_STR_xxMARVELL_E1149R }, 145 146 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1240, 147 MII_STR_xxMARVELL_E1240 }, 148 149 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1512, 150 MII_STR_xxMARVELL_E1512 }, 151 152 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1543, 153 MII_STR_xxMARVELL_E1543 }, 154 155 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3016, 156 MII_STR_xxMARVELL_E3016 }, 157 158 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3082, 159 MII_STR_xxMARVELL_E3082 }, 160 161 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_PHYG65G, 162 MII_STR_xxMARVELL_PHYG65G }, 163 164 { 0, 0, 165 NULL }, 166 }; 167 168 #define MAKARG_PDOWN true /* Power DOWN */ 169 #define MAKARG_PUP false /* Power UP */ 170 171 static int 172 makphymatch(device_t parent, cfdata_t match, void *aux) 173 { 174 struct mii_attach_args *ma = aux; 175 176 if (mii_phy_match(ma, makphys) != NULL) 177 return (10); 178 179 return (0); 180 } 181 182 static void 183 makphyattach(device_t parent, device_t self, void *aux) 184 { 185 struct mii_softc *sc = device_private(self); 186 struct mii_attach_args *ma = aux; 187 struct mii_data *mii = ma->mii_data; 188 const struct mii_phydesc *mpd; 189 190 mpd = mii_phy_match(ma, makphys); 191 aprint_naive(": Media interface\n"); 192 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 193 194 sc->mii_dev = self; 195 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 196 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 197 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 198 sc->mii_inst = mii->mii_instance; 199 sc->mii_phy = ma->mii_phyno; 200 sc->mii_funcs = &makphy_funcs; 201 sc->mii_pdata = mii; 202 sc->mii_flags = ma->mii_flags; 203 sc->mii_anegticks = MII_ANEGTICKS; 204 205 /* Make sure page 0 is selected. */ 206 PHY_WRITE(sc, MAKPHY_EADR, 0); 207 208 switch (sc->mii_mpd_model) { 209 case MII_MODEL_xxMARVELL_E1011: 210 case MII_MODEL_xxMARVELL_E1112: 211 if (PHY_READ(sc, MAKPHY_ESSR) & ESSR_FIBER_LINK) 212 sc->mii_flags |= MIIF_HAVEFIBER; 213 break; 214 default: 215 break; 216 } 217 218 PHY_RESET(sc); 219 220 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 221 if (sc->mii_capabilities & BMSR_EXTSTAT) 222 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 223 224 aprint_normal_dev(self, ""); 225 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 226 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 227 aprint_error("no media present"); 228 else 229 mii_phy_add_media(sc); 230 aprint_normal("\n"); 231 } 232 233 static void 234 makphy_reset(struct mii_softc *sc) 235 { 236 uint16_t reg; 237 238 mii_phy_reset(sc); 239 240 /* 241 * Initialize PHY Specific Control Register. 242 */ 243 reg = PHY_READ(sc, MAKPHY_PSCR); 244 245 /* Assert CRS on transmit. */ 246 switch (sc->mii_mpd_model) { 247 case MII_MODEL_MARVELL_E1000_0: 248 case MII_MODEL_MARVELL_E1000_3: 249 case MII_MODEL_MARVELL_E1000_5: 250 case MII_MODEL_MARVELL_E1000_6: 251 case MII_MODEL_xxMARVELL_E1000S: 252 case MII_MODEL_xxMARVELL_E1011: 253 case MII_MODEL_xxMARVELL_E1111: 254 reg |= PSCR_CRS_ON_TX; 255 break; 256 default: /* No PSCR_CRS_ON_TX bit */ 257 break; 258 } 259 260 /* Enable scrambler if necessary. */ 261 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 262 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 263 264 /* 265 * Store next page in the Link Partner Next Page register for 266 * compatibility with 802.3ab. 267 */ 268 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 269 reg |= E3016_PSCR_REG8NXTPG; 270 271 PHY_WRITE(sc, MAKPHY_PSCR, reg); 272 273 /* Configure LEDs if they were left unconfigured. */ 274 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016 && 275 PHY_READ(sc, 0x16) == 0) { 276 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 277 PHY_WRITE(sc, 0x16, reg); 278 } 279 280 mii_phy_reset(sc); 281 } 282 283 static void 284 makphy_pdown(struct mii_softc *sc, bool pdown) 285 { 286 int bmcr, new; 287 bool need_reset = false; 288 289 /* 290 * XXX 291 * PSCR (register 16) should be modified on some chips. 292 */ 293 294 bmcr = PHY_READ(sc, MII_BMCR); 295 if (pdown) 296 new = bmcr | BMCR_PDOWN; 297 else 298 new = bmcr & ~BMCR_PDOWN; 299 if (bmcr != new) 300 need_reset = true; 301 302 if (need_reset) 303 new |= BMCR_RESET; 304 PHY_WRITE(sc, MII_BMCR, new); 305 } 306 307 static int 308 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 309 { 310 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 311 int bmcr; 312 313 if (!device_is_active(sc->mii_dev)) 314 return (ENXIO); 315 316 switch (cmd) { 317 case MII_POLLSTAT: 318 /* 319 * If we're not polling our PHY instance, just return. 320 */ 321 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 322 return (0); 323 break; 324 325 case MII_MEDIACHG: 326 /* 327 * If the media indicates a different PHY instance, 328 * isolate ourselves. 329 */ 330 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 331 bmcr = PHY_READ(sc, MII_BMCR); 332 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 333 return (0); 334 } 335 336 /* 337 * If the interface is not up, don't do anything. 338 */ 339 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 340 break; 341 342 /* Try to power up the PHY in case it's down */ 343 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 344 makphy_pdown(sc, MAKARG_PUP); 345 346 mii_phy_setmedia(sc); 347 348 /* 349 * If autonegitation is not enabled, we need a 350 * software reset for the settings to take effect. 351 */ 352 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 353 makphy_pdown(sc, MAKARG_PDOWN); 354 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 355 bmcr = PHY_READ(sc, MII_BMCR); 356 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 357 } 358 break; 359 360 case MII_TICK: 361 /* 362 * If we're not currently selected, just return. 363 */ 364 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 365 return (0); 366 367 if (mii_phy_tick(sc) == EJUSTRETURN) 368 return (0); 369 break; 370 371 case MII_DOWN: 372 mii_phy_down(sc); 373 return (0); 374 } 375 376 /* Update the media status. */ 377 mii_phy_status(sc); 378 379 /* Callback if something changed. */ 380 mii_phy_update(sc, cmd); 381 return (0); 382 } 383 384 static void 385 makphy_status(struct mii_softc *sc) 386 { 387 struct mii_data *mii = sc->mii_pdata; 388 int bmcr, gsr, pssr; 389 390 mii->mii_media_status = IFM_AVALID; 391 mii->mii_media_active = IFM_ETHER; 392 393 bmcr = PHY_READ(sc, MII_BMCR); 394 /* XXX FIXME: Use different page for Fiber on newer chips */ 395 pssr = PHY_READ(sc, MAKPHY_PSSR); 396 397 if (pssr & PSSR_LINK) 398 mii->mii_media_status |= IFM_ACTIVE; 399 400 if (bmcr & BMCR_LOOP) 401 mii->mii_media_active |= IFM_LOOP; 402 403 if (bmcr & BMCR_ISO) { 404 mii->mii_media_active |= IFM_NONE; 405 mii->mii_media_status = 0; 406 return; 407 } 408 409 if ((bmcr & BMCR_AUTOEN) != 0) { 410 /* 411 * Check Speed and Duplex Resolved bit. 412 * Note that this bit is always 1 when autonego is not enabled. 413 */ 414 if (!(pssr & PSSR_RESOLVED)) { 415 /* Erg, still trying, I guess... */ 416 mii->mii_media_active |= IFM_NONE; 417 return; 418 } 419 } else { 420 if ((pssr & PSSR_LINK) == 0) { 421 mii->mii_media_active |= IFM_NONE; 422 return; 423 } 424 } 425 426 /* XXX FIXME: Use different page for Fiber on newer chips */ 427 if (sc->mii_flags & MIIF_IS_1000X) { 428 mii->mii_media_active |= IFM_1000_SX; 429 } else { 430 switch (PSSR_SPEED_get(pssr)) { 431 case SPEED_1000: 432 mii->mii_media_active |= IFM_1000_T; 433 break; 434 case SPEED_100: 435 mii->mii_media_active |= IFM_100_TX; 436 break; 437 case SPEED_10: 438 mii->mii_media_active |= IFM_10_T; 439 break; 440 default: /* Undefined (reserved) value */ 441 mii->mii_media_active |= IFM_NONE; 442 mii->mii_media_status = 0; 443 return; 444 } 445 } 446 447 if (pssr & PSSR_DUPLEX) 448 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 449 else 450 mii->mii_media_active |= IFM_HDX; 451 452 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 453 gsr = PHY_READ(sc, MII_100T2SR); 454 if (gsr & GTSR_MS_RES) 455 mii->mii_media_active |= IFM_ETH_MASTER; 456 } 457 } 458
Indexes created Thu Oct 23 22:10:10 GMT 2025