makphy.c revision 1.65
1 /* $NetBSD: makphy.c,v 1.65 2020/03/15 23:04:50 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 * 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 1.65 2020/03/15 23:04:50 thorpej 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 #include <dev/mii/makphyvar.h> 80 81 static int makphymatch(device_t, cfdata_t, void *); 82 static void makphyattach(device_t, device_t, void *); 83 84 CFATTACH_DECL_NEW(makphy, sizeof(struct makphy_softc), 85 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); 86 87 static int makphy_service(struct mii_softc *, struct mii_data *, int); 88 static void makphy_status(struct mii_softc *); 89 static void makphy_reset(struct mii_softc *); 90 91 static const struct mii_phy_funcs makphy_funcs = { 92 makphy_service, makphy_status, makphy_reset, 93 }; 94 95 static const struct mii_phydesc makphys[] = { 96 MII_PHY_DESC(MARVELL, E1000_0), 97 MII_PHY_DESC(MARVELL, E1000_3), 98 MII_PHY_DESC(MARVELL, E1000_5), 99 MII_PHY_DESC(MARVELL, E1000_6), 100 MII_PHY_DESC(xxMARVELL, E1000_3), 101 MII_PHY_DESC(xxMARVELL, E1000_5), 102 MII_PHY_DESC(xxMARVELL, E1000S), 103 MII_PHY_DESC(xxMARVELL, E1011), 104 MII_PHY_DESC(xxMARVELL, E1101), 105 MII_PHY_DESC(xxMARVELL, E1111), 106 MII_PHY_DESC(xxMARVELL, E1112), 107 MII_PHY_DESC(xxMARVELL, E1116), 108 MII_PHY_DESC(xxMARVELL, E1116R), 109 MII_PHY_DESC(xxMARVELL, E1118), 110 MII_PHY_DESC(xxMARVELL, E1145), 111 MII_PHY_DESC(xxMARVELL, E1149), 112 MII_PHY_DESC(xxMARVELL, E1149R), 113 MII_PHY_DESC(xxMARVELL, E1240), 114 MII_PHY_DESC(xxMARVELL, E1318S), 115 MII_PHY_DESC(xxMARVELL, E1512), 116 MII_PHY_DESC(xxMARVELL, E1543), 117 MII_PHY_DESC(xxMARVELL, E3016), 118 MII_PHY_DESC(xxMARVELL, E3082), 119 MII_PHY_DESC(xxMARVELL, PHYG65G), 120 MII_PHY_END, 121 }; 122 123 #define MAKARG_PDOWN true /* Power DOWN */ 124 #define MAKARG_PUP false /* Power UP */ 125 126 static bool 127 makphy_isi210(device_t parent, struct mii_attach_args *ma) 128 { 129 130 /* I21[01]'s model number is 0 */ 131 if ((MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxMARVELL) 132 && (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_I210) 133 && (device_is_a(parent, "wm"))) 134 return true; 135 return false; 136 } 137 138 static int 139 makphymatch(device_t parent, cfdata_t match, void *aux) 140 { 141 struct mii_attach_args *ma = aux; 142 143 if (mii_phy_match(ma, makphys) != NULL) 144 return 10; 145 146 if (makphy_isi210(parent, ma)) 147 return 10; 148 149 return 0; 150 } 151 152 static void 153 makphyattach(device_t parent, device_t self, void *aux) 154 { 155 struct mii_softc *sc = device_private(self); 156 struct mii_attach_args *ma = aux; 157 struct mii_data *mii = ma->mii_data; 158 const struct mii_phydesc *mpd; 159 struct makphy_softc *maksc = (struct makphy_softc *)sc; 160 const char *name; 161 uint16_t reg, model; 162 163 mpd = mii_phy_match(ma, makphys); 164 aprint_naive(": Media interface\n"); 165 if (mpd) 166 name = mpd->mpd_name; 167 else if (makphy_isi210(parent, ma)) { 168 name = MII_STR_xxMARVELL_I210; 169 maksc->sc_flags |= MAKPHY_F_I210; 170 } else 171 panic("Unknown PHY"); 172 aprint_normal(": %s, rev. %d\n", name, MII_REV(ma->mii_id2)); 173 174 sc->mii_dev = self; 175 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 176 sc->mii_mpd_model = model = MII_MODEL(ma->mii_id2); 177 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 178 sc->mii_inst = mii->mii_instance; 179 sc->mii_phy = ma->mii_phyno; 180 sc->mii_funcs = &makphy_funcs; 181 sc->mii_pdata = mii; 182 sc->mii_flags = ma->mii_flags; 183 184 mii_lock(mii); 185 186 switch (model) { 187 case MII_MODEL_xxMARVELL_E1000: 188 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 189 goto page0; 190 /* FALLTHROUGH */ 191 case MII_MODEL_xxMARVELL_E1000_3: 192 case MII_MODEL_xxMARVELL_E1000S: 193 case MII_MODEL_xxMARVELL_E1000_5: 194 /* 88E1000 series has no EADR */ 195 break; 196 default: 197 page0: 198 /* Make sure page 0 is selected. */ 199 if (PHY_WRITE(sc, MAKPHY_EADR, 0) != 0) 200 aprint_verbose_dev(self, 201 "Failed to access EADR. Are you an emulator?\n"); 202 break; 203 } 204 205 PHY_RESET(sc); 206 207 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 208 sc->mii_capabilities &= ma->mii_capmask; 209 if (sc->mii_capabilities & BMSR_EXTSTAT) 210 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 211 212 if (((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) 213 != 0) 214 && ((sc->mii_extcapabilities & (EXTSR_1000XFDX | EXTSR_1000XHDX)) 215 != 0)) { 216 bool fiberonly = false, copperonly = false; 217 218 /* Both copper and fiber are set. check MODE[] */ 219 switch (sc->mii_mpd_model) { 220 case MII_MODEL_xxMARVELL_E1011: 221 case MII_MODEL_xxMARVELL_E1111: 222 /* These devices have ESSR register */ 223 PHY_READ(sc, MAKPHY_ESSR, ®); 224 if ((reg & ESSR_AUTOSEL_DISABLE) != 0) { 225 switch (reg & ESSR_HWCFG_MODE) { 226 case ESSR_RTBI_FIBER: 227 case ESSR_RGMII_FIBER: 228 case ESSR_RGMII_SGMII: /* right? */ 229 case ESSR_TBI_FIBER: 230 case ESSR_GMII_FIBER: 231 fiberonly = true; 232 break; 233 case ESSR_SGMII_WC_COPPER: 234 case ESSR_SGMII_WOC_COPPER: 235 case ESSR_RTBI_COPPER: 236 case ESSR_RGMII_COPPER: 237 case ESSR_GMII_COPPER: 238 copperonly = true; 239 default: 240 break; 241 } 242 } 243 break; 244 default: 245 break; 246 } 247 if (fiberonly || copperonly) 248 aprint_debug_dev(self, "both copper and fiber are set " 249 "but MODE[] is %s only.\n", 250 fiberonly ? "fiber" : "copper"); 251 if (fiberonly) 252 sc->mii_extcapabilities 253 &= ~(EXTSR_1000TFDX | EXTSR_1000THDX); 254 else if (copperonly) { 255 sc->mii_extcapabilities 256 &= ~(EXTSR_1000XFDX | EXTSR_1000XHDX); 257 sc->mii_flags &= ~MIIF_IS_1000X; 258 } 259 } 260 mii_unlock(mii); 261 mii_phy_add_media(sc); 262 } 263 264 static void 265 makphy_reset(struct mii_softc *sc) 266 { 267 struct makphy_softc *maksc = (struct makphy_softc *)sc; 268 uint16_t reg; 269 270 KASSERT(mii_locked(sc->mii_pdata)); 271 272 mii_phy_reset(sc); 273 274 /* Initialize PHY Specific Control Register. */ 275 PHY_READ(sc, MAKPHY_PSCR, ®); 276 277 /* Assert CRS on transmit. */ 278 switch (sc->mii_mpd_model) { 279 case MII_MODEL_MARVELL_E1000_0: 280 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 281 break; 282 /* FALLTHROUGH */ 283 case MII_MODEL_MARVELL_E1000_3: 284 case MII_MODEL_MARVELL_E1000_5: 285 case MII_MODEL_MARVELL_E1000_6: 286 case MII_MODEL_xxMARVELL_E1000S: 287 case MII_MODEL_xxMARVELL_E1011: 288 case MII_MODEL_xxMARVELL_E1111: 289 reg |= PSCR_CRS_ON_TX; 290 break; 291 default: /* No PSCR_CRS_ON_TX bit */ 292 break; 293 } 294 295 /* Enable scrambler if necessary. */ 296 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 297 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 298 299 /* 300 * Store next page in the Link Partner Next Page register for 301 * compatibility with 802.3ab. 302 */ 303 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 304 reg |= E3016_PSCR_REG8NXTPG; 305 306 PHY_WRITE(sc, MAKPHY_PSCR, reg); 307 308 /* Configure LEDs if they were left unconfigured. */ 309 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 310 PHY_READ(sc, 0x16, ®); 311 if (reg == 0) { 312 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 313 PHY_WRITE(sc, 0x16, reg); 314 } 315 } 316 317 mii_phy_reset(sc); 318 } 319 320 static void 321 makphy_pdown(struct mii_softc *sc, bool pdown) 322 { 323 uint16_t bmcr, new; 324 bool need_reset = false; 325 326 /* 327 * XXX 328 * PSCR (register 16) should be modified on some chips. 329 */ 330 331 PHY_READ(sc, MII_BMCR, &bmcr); 332 if (pdown) 333 new = bmcr | BMCR_PDOWN; 334 else 335 new = bmcr & ~BMCR_PDOWN; 336 if (bmcr != new) 337 need_reset = true; 338 339 if (need_reset) 340 new |= BMCR_RESET; 341 PHY_WRITE(sc, MII_BMCR, new); 342 } 343 344 static int 345 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 346 { 347 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 348 uint16_t bmcr; 349 350 if (!device_is_active(sc->mii_dev)) 351 return ENXIO; 352 353 KASSERT(mii_locked(mii)); 354 355 switch (cmd) { 356 case MII_POLLSTAT: 357 /* If we're not polling our PHY instance, just return. */ 358 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 359 return 0; 360 break; 361 362 case MII_MEDIACHG: 363 /* 364 * If the media indicates a different PHY instance, 365 * isolate ourselves. 366 */ 367 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 368 PHY_READ(sc, MII_BMCR, &bmcr); 369 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 370 return 0; 371 } 372 373 /* If the interface is not up, don't do anything. */ 374 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 375 break; 376 377 /* Try to power up the PHY in case it's down */ 378 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 379 makphy_pdown(sc, MAKARG_PUP); 380 381 mii_phy_setmedia(sc); 382 383 /* 384 * If autonegitation is not enabled, we need a 385 * software reset for the settings to take effect. 386 */ 387 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 388 makphy_pdown(sc, MAKARG_PDOWN); 389 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 390 PHY_READ(sc, MII_BMCR, &bmcr); 391 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 392 } 393 break; 394 395 case MII_TICK: 396 /* If we're not currently selected, just return. */ 397 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 398 return 0; 399 400 if (mii_phy_tick(sc) == EJUSTRETURN) 401 return 0; 402 break; 403 404 case MII_DOWN: 405 mii_phy_down(sc); 406 return 0; 407 } 408 409 /* Update the media status. */ 410 mii_phy_status(sc); 411 412 /* Callback if something changed. */ 413 mii_phy_update(sc, cmd); 414 return 0; 415 } 416 417 static void 418 makphy_status(struct mii_softc *sc) 419 { 420 struct mii_data *mii = sc->mii_pdata; 421 uint16_t bmcr, gsr, pssr, essr; 422 423 KASSERT(mii_locked(mii)); 424 425 mii->mii_media_status = IFM_AVALID; 426 mii->mii_media_active = IFM_ETHER; 427 428 PHY_READ(sc, MII_BMCR, &bmcr); 429 /* XXX FIXME: Use different page for Fiber on newer chips */ 430 PHY_READ(sc, MAKPHY_PSSR, &pssr); 431 432 if (pssr & PSSR_LINK) 433 mii->mii_media_status |= IFM_ACTIVE; 434 435 if (bmcr & BMCR_LOOP) 436 mii->mii_media_active |= IFM_LOOP; 437 438 if (bmcr & BMCR_ISO) { 439 mii->mii_media_active |= IFM_NONE; 440 mii->mii_media_status = 0; 441 return; 442 } 443 444 if ((bmcr & BMCR_AUTOEN) != 0) { 445 /* 446 * Check Speed and Duplex Resolved bit. 447 * Note that this bit is always 1 when autonego is not enabled. 448 */ 449 if (!(pssr & PSSR_RESOLVED)) { 450 /* Erg, still trying, I guess... */ 451 mii->mii_media_active |= IFM_NONE; 452 return; 453 } 454 } else { 455 if ((pssr & PSSR_LINK) == 0) { 456 mii->mii_media_active |= IFM_NONE; 457 return; 458 } 459 } 460 461 /* 462 * XXX The following code support Fiber/Copper auto select mode 463 * only for 88E1011, 88E1111 and 88E1112. For other chips, the document 464 * is required. 465 */ 466 if (sc->mii_flags & MIIF_IS_1000X) { 467 /* Not in Fiber/Copper auto select mode */ 468 mii->mii_media_active |= IFM_1000_SX; 469 } else if ((sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1011) || 470 (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1111)) { 471 /* Fiber/Copper auto select mode */ 472 473 PHY_READ(sc, MAKPHY_ESSR, &essr); 474 if ((essr & ESSR_FIBER_LINK) == 0) 475 goto copper; 476 477 /* XXX Assume 1000BASE-SX only */ 478 mii->mii_media_active |= IFM_1000_SX; 479 } else if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1112) { 480 /* Fiber/Copper auto select mode */ 481 482 PHY_READ(sc, MAKPHY_PSSR, &pssr); 483 if ((pssr & PSSR_RESOLUTION_FIBER) == 0) 484 goto copper; 485 486 switch (PSSR_SPEED_get(pssr)) { 487 case SPEED_1000: 488 mii->mii_media_active |= IFM_1000_SX; 489 break; 490 case SPEED_100: 491 mii->mii_media_active |= IFM_100_FX; 492 break; 493 default: /* Undefined (reserved) value */ 494 mii->mii_media_active |= IFM_NONE; 495 mii->mii_media_status = 0; 496 return; 497 } 498 } else { 499 copper: 500 switch (PSSR_SPEED_get(pssr)) { 501 case SPEED_1000: 502 mii->mii_media_active |= IFM_1000_T; 503 break; 504 case SPEED_100: 505 mii->mii_media_active |= IFM_100_TX; 506 break; 507 case SPEED_10: 508 mii->mii_media_active |= IFM_10_T; 509 break; 510 default: /* Undefined (reserved) value */ 511 mii->mii_media_active |= IFM_NONE; 512 mii->mii_media_status = 0; 513 return; 514 } 515 } 516 517 if (pssr & PSSR_DUPLEX) 518 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 519 else 520 mii->mii_media_active |= IFM_HDX; 521 522 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 523 PHY_READ(sc, MII_100T2SR, &gsr); 524 if (gsr & GTSR_MS_RES) 525 mii->mii_media_active |= IFM_ETH_MASTER; 526 } 527 } 528
Indexes created Tue Sep 23 14:10:03 GMT 2025