makphy.c revision 1.69
1 /* $NetBSD: makphy.c,v 1.69 2021/12/28 06:34:40 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 1.69 2021/12/28 06:34:40 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 #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_DESC(xxMARVELL, I347), 121 MII_PHY_END, 122 }; 123 124 #define MAKARG_PDOWN true /* Power DOWN */ 125 #define MAKARG_PUP false /* Power UP */ 126 127 static bool 128 makphy_isi210(device_t parent, struct mii_attach_args *ma) 129 { 130 131 /* I21[01]'s model number is 0 */ 132 if ((MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxMARVELL) 133 && (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_I210) 134 && (device_is_a(parent, "wm"))) 135 return true; 136 return false; 137 } 138 139 static int 140 makphymatch(device_t parent, cfdata_t match, void *aux) 141 { 142 struct mii_attach_args *ma = aux; 143 144 if (mii_phy_match(ma, makphys) != NULL) 145 return 10; 146 147 if (makphy_isi210(parent, ma)) 148 return 10; 149 150 return 0; 151 } 152 153 static void 154 makphyattach(device_t parent, device_t self, void *aux) 155 { 156 struct mii_softc *sc = device_private(self); 157 struct mii_attach_args *ma = aux; 158 struct mii_data *mii = ma->mii_data; 159 const struct mii_phydesc *mpd; 160 struct makphy_softc *maksc = (struct makphy_softc *)sc; 161 const char *name; 162 uint16_t reg, model; 163 int rv; 164 165 mpd = mii_phy_match(ma, makphys); 166 aprint_naive(": Media interface\n"); 167 if (mpd) 168 name = mpd->mpd_name; 169 else if (makphy_isi210(parent, ma)) { 170 name = MII_STR_xxMARVELL_I210; 171 maksc->sc_flags |= MAKPHY_F_I210; 172 } else 173 panic("Unknown PHY"); 174 aprint_normal(": %s, rev. %d\n", name, MII_REV(ma->mii_id2)); 175 176 sc->mii_dev = self; 177 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 178 sc->mii_mpd_model = model = MII_MODEL(ma->mii_id2); 179 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 180 sc->mii_inst = mii->mii_instance; 181 sc->mii_phy = ma->mii_phyno; 182 sc->mii_funcs = &makphy_funcs; 183 sc->mii_pdata = mii; 184 sc->mii_flags = ma->mii_flags; 185 186 mii_lock(mii); 187 188 switch (model) { 189 case MII_MODEL_xxMARVELL_E1000: 190 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 191 goto page0; 192 /* FALLTHROUGH */ 193 case MII_MODEL_xxMARVELL_E1000_3: 194 case MII_MODEL_xxMARVELL_E1000S: 195 case MII_MODEL_xxMARVELL_E1000_5: 196 /* 88E1000 series has no EADR */ 197 break; 198 default: 199 page0: 200 /* Make sure page 0 is selected. */ 201 if (PHY_WRITE(sc, MAKPHY_EADR, 0) != 0) 202 aprint_verbose_dev(self, 203 "Failed to access EADR. Are you an emulator?\n"); 204 break; 205 } 206 207 PHY_RESET(sc); 208 209 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 210 sc->mii_capabilities &= ma->mii_capmask; 211 if (sc->mii_capabilities & BMSR_EXTSTAT) { 212 rv = PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 213 if (rv != 0) { 214 aprint_verbose_dev(self, "Failed to read EXTSR. " 215 "Are you an emulator?. " 216 "Regard as 1000BASE-T.\n"); 217 sc->mii_extcapabilities 218 |= EXTSR_1000TFDX | EXTSR_1000THDX; 219 } 220 } 221 222 if (((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) 223 != 0) 224 && ((sc->mii_extcapabilities & (EXTSR_1000XFDX | EXTSR_1000XHDX)) 225 != 0)) { 226 bool fiberonly = false, copperonly = false; 227 228 /* Both copper and fiber are set. check MODE[] */ 229 switch (sc->mii_mpd_model) { 230 case MII_MODEL_xxMARVELL_E1011: 231 case MII_MODEL_xxMARVELL_E1111: 232 /* These devices have ESSR register */ 233 PHY_READ(sc, MAKPHY_ESSR, ®); 234 if ((reg & ESSR_AUTOSEL_DISABLE) != 0) { 235 switch (reg & ESSR_HWCFG_MODE) { 236 case ESSR_RTBI_FIBER: 237 case ESSR_RGMII_FIBER: 238 case ESSR_RGMII_SGMII: /* right? */ 239 case ESSR_TBI_FIBER: 240 case ESSR_GMII_FIBER: 241 fiberonly = true; 242 break; 243 case ESSR_SGMII_WC_COPPER: 244 case ESSR_SGMII_WOC_COPPER: 245 case ESSR_RTBI_COPPER: 246 case ESSR_RGMII_COPPER: 247 case ESSR_GMII_COPPER: 248 copperonly = true; 249 default: 250 break; 251 } 252 } 253 break; 254 default: 255 break; 256 } 257 if (fiberonly || copperonly) 258 aprint_debug_dev(self, "both copper and fiber are set " 259 "but MODE[] is %s only.\n", 260 fiberonly ? "fiber" : "copper"); 261 if (fiberonly) 262 sc->mii_extcapabilities 263 &= ~(EXTSR_1000TFDX | EXTSR_1000THDX); 264 else if (copperonly) { 265 sc->mii_extcapabilities 266 &= ~(EXTSR_1000XFDX | EXTSR_1000XHDX); 267 sc->mii_flags &= ~MIIF_IS_1000X; 268 } 269 } 270 mii_unlock(mii); 271 mii_phy_add_media(sc); 272 } 273 274 static void 275 makphy_reset(struct mii_softc *sc) 276 { 277 struct makphy_softc *maksc = (struct makphy_softc *)sc; 278 uint16_t reg; 279 280 KASSERT(mii_locked(sc->mii_pdata)); 281 282 mii_phy_reset(sc); 283 284 /* Initialize PHY Specific Control Register. */ 285 PHY_READ(sc, MAKPHY_PSCR, ®); 286 287 /* Assert CRS on transmit. */ 288 switch (sc->mii_mpd_model) { 289 case MII_MODEL_MARVELL_E1000_0: 290 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 291 break; 292 /* FALLTHROUGH */ 293 case MII_MODEL_MARVELL_E1000_3: 294 case MII_MODEL_MARVELL_E1000_5: 295 case MII_MODEL_MARVELL_E1000_6: 296 case MII_MODEL_xxMARVELL_E1000S: 297 case MII_MODEL_xxMARVELL_E1011: 298 case MII_MODEL_xxMARVELL_E1111: 299 reg |= PSCR_CRS_ON_TX; 300 break; 301 default: /* No PSCR_CRS_ON_TX bit */ 302 break; 303 } 304 305 /* Enable scrambler if necessary. */ 306 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 307 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 308 309 /* 310 * Store next page in the Link Partner Next Page register for 311 * compatibility with 802.3ab. 312 */ 313 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 314 reg |= E3016_PSCR_REG8NXTPG; 315 316 PHY_WRITE(sc, MAKPHY_PSCR, reg); 317 318 /* Configure LEDs if they were left unconfigured. */ 319 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 320 PHY_READ(sc, 0x16, ®); 321 if (reg == 0) { 322 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 323 PHY_WRITE(sc, 0x16, reg); 324 } 325 } 326 327 mii_phy_reset(sc); 328 } 329 330 static void 331 makphy_pdown(struct mii_softc *sc, bool pdown) 332 { 333 uint16_t bmcr, new; 334 bool need_reset = false; 335 336 /* 337 * XXX 338 * PSCR (register 16) should be modified on some chips. 339 */ 340 341 PHY_READ(sc, MII_BMCR, &bmcr); 342 if (pdown) 343 new = bmcr | BMCR_PDOWN; 344 else 345 new = bmcr & ~BMCR_PDOWN; 346 if (bmcr != new) 347 need_reset = true; 348 349 if (need_reset) 350 new |= BMCR_RESET; 351 PHY_WRITE(sc, MII_BMCR, new); 352 } 353 354 static int 355 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 356 { 357 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 358 uint16_t bmcr; 359 360 if (!device_is_active(sc->mii_dev)) 361 return ENXIO; 362 363 KASSERT(mii_locked(mii)); 364 365 switch (cmd) { 366 case MII_POLLSTAT: 367 /* If we're not polling our PHY instance, just return. */ 368 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 369 return 0; 370 break; 371 372 case MII_MEDIACHG: 373 /* 374 * If the media indicates a different PHY instance, 375 * isolate ourselves. 376 */ 377 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 378 PHY_READ(sc, MII_BMCR, &bmcr); 379 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 380 return 0; 381 } 382 383 /* If the interface is not up, don't do anything. */ 384 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 385 break; 386 387 /* Try to power up the PHY in case it's down */ 388 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 389 makphy_pdown(sc, MAKARG_PUP); 390 391 mii_phy_setmedia(sc); 392 393 /* 394 * If autonegitation is not enabled, we need a 395 * software reset for the settings to take effect. 396 */ 397 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 398 makphy_pdown(sc, MAKARG_PDOWN); 399 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 400 PHY_READ(sc, MII_BMCR, &bmcr); 401 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 402 } 403 break; 404 405 case MII_TICK: 406 /* If we're not currently selected, just return. */ 407 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 408 return 0; 409 410 if (mii_phy_tick(sc) == EJUSTRETURN) 411 return 0; 412 break; 413 414 case MII_DOWN: 415 mii_phy_down(sc); 416 return 0; 417 } 418 419 /* Update the media status. */ 420 mii_phy_status(sc); 421 422 /* Callback if something changed. */ 423 mii_phy_update(sc, cmd); 424 return 0; 425 } 426 427 static void 428 makphy_status(struct mii_softc *sc) 429 { 430 struct mii_data *mii = sc->mii_pdata; 431 uint16_t bmcr, gsr, pssr, essr; 432 433 KASSERT(mii_locked(mii)); 434 435 mii->mii_media_status = IFM_AVALID; 436 mii->mii_media_active = IFM_ETHER; 437 438 PHY_READ(sc, MII_BMCR, &bmcr); 439 /* XXX FIXME: Use different page for Fiber on newer chips */ 440 PHY_READ(sc, MAKPHY_PSSR, &pssr); 441 442 if (pssr & MAKPHY_PSSR_LINK) 443 mii->mii_media_status |= IFM_ACTIVE; 444 445 if (bmcr & BMCR_LOOP) 446 mii->mii_media_active |= IFM_LOOP; 447 448 if (bmcr & (BMCR_ISO | BMCR_PDOWN)) { 449 mii->mii_media_active |= IFM_NONE; 450 return; 451 } 452 453 if ((bmcr & BMCR_AUTOEN) != 0) { 454 /* 455 * Check Speed and Duplex Resolved bit. 456 * Note that this bit is always 1 when autonego is not enabled. 457 */ 458 if (!(pssr & MAKPHY_PSSR_RESOLVED)) { 459 /* Erg, still trying, I guess... */ 460 mii->mii_media_active |= IFM_NONE; 461 return; 462 } 463 } else { 464 if ((pssr & MAKPHY_PSSR_LINK) == 0) { 465 mii->mii_media_active |= IFM_NONE; 466 return; 467 } 468 } 469 470 /* 471 * XXX The following code support Fiber/Copper auto select mode 472 * only for 88E1011, 88E1111 and 88E1112. For other chips, the document 473 * is required. 474 */ 475 if (sc->mii_flags & MIIF_IS_1000X) { 476 /* Not in Fiber/Copper auto select mode */ 477 mii->mii_media_active |= IFM_1000_SX; 478 } else if ((sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1011) || 479 (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1111)) { 480 /* Fiber/Copper auto select mode */ 481 482 PHY_READ(sc, MAKPHY_ESSR, &essr); 483 if ((essr & ESSR_FIBER_LINK) == 0) 484 goto copper; 485 486 /* XXX Assume 1000BASE-SX only */ 487 mii->mii_media_active |= IFM_1000_SX; 488 } else if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1112) { 489 /* Fiber/Copper auto select mode */ 490 491 PHY_READ(sc, MAKPHY_PSSR, &pssr); 492 if ((pssr & MAKPHY_PSSR_RESOLUTION_FIBER) == 0) 493 goto copper; 494 495 switch (MAKPHY_PSSR_SPEED_get(pssr)) { 496 case SPEED_1000: 497 mii->mii_media_active |= IFM_1000_SX; 498 break; 499 case SPEED_100: 500 mii->mii_media_active |= IFM_100_FX; 501 break; 502 default: /* Undefined (reserved) value */ 503 mii->mii_media_active |= IFM_NONE; 504 mii->mii_media_status = 0; 505 return; 506 } 507 } else { 508 copper: 509 switch (MAKPHY_PSSR_SPEED_get(pssr)) { 510 case SPEED_1000: 511 mii->mii_media_active |= IFM_1000_T; 512 break; 513 case SPEED_100: 514 mii->mii_media_active |= IFM_100_TX; 515 break; 516 case SPEED_10: 517 mii->mii_media_active |= IFM_10_T; 518 break; 519 default: /* Undefined (reserved) value */ 520 mii->mii_media_active |= IFM_NONE; 521 mii->mii_media_status = 0; 522 return; 523 } 524 } 525 526 if (pssr & MAKPHY_PSSR_DUPLEX) 527 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 528 else 529 mii->mii_media_active |= IFM_HDX; 530 531 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 532 PHY_READ(sc, MII_100T2SR, &gsr); 533 if (gsr & GTSR_MS_RES) 534 mii->mii_media_active |= IFM_ETH_MASTER; 535 } 536 } 537
Indexes created Fri Sep 26 20:09:58 GMT 2025