makphy.c revision 1.67
1 /* $NetBSD: makphy.c,v 1.67 2020/10/20 08:53:34 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 1.67 2020/10/20 08:53:34 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; 163 164 mpd = mii_phy_match(ma, makphys); 165 aprint_naive(": Media interface\n"); 166 if (mpd) 167 name = mpd->mpd_name; 168 else if (makphy_isi210(parent, ma)) { 169 name = MII_STR_xxMARVELL_I210; 170 maksc->sc_flags |= MAKPHY_F_I210; 171 } else 172 panic("Unknown PHY"); 173 aprint_normal(": %s, rev. %d\n", name, MII_REV(ma->mii_id2)); 174 175 sc->mii_dev = self; 176 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 177 sc->mii_mpd_model = model = MII_MODEL(ma->mii_id2); 178 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 179 sc->mii_inst = mii->mii_instance; 180 sc->mii_phy = ma->mii_phyno; 181 sc->mii_funcs = &makphy_funcs; 182 sc->mii_pdata = mii; 183 sc->mii_flags = ma->mii_flags; 184 185 mii_lock(mii); 186 187 switch (model) { 188 case MII_MODEL_xxMARVELL_E1000: 189 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 190 goto page0; 191 /* FALLTHROUGH */ 192 case MII_MODEL_xxMARVELL_E1000_3: 193 case MII_MODEL_xxMARVELL_E1000S: 194 case MII_MODEL_xxMARVELL_E1000_5: 195 /* 88E1000 series has no EADR */ 196 break; 197 default: 198 page0: 199 /* Make sure page 0 is selected. */ 200 if (PHY_WRITE(sc, MAKPHY_EADR, 0) != 0) 201 aprint_verbose_dev(self, 202 "Failed to access EADR. Are you an emulator?\n"); 203 break; 204 } 205 206 PHY_RESET(sc); 207 208 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 209 sc->mii_capabilities &= ma->mii_capmask; 210 if (sc->mii_capabilities & BMSR_EXTSTAT) 211 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 212 213 if (((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) 214 != 0) 215 && ((sc->mii_extcapabilities & (EXTSR_1000XFDX | EXTSR_1000XHDX)) 216 != 0)) { 217 bool fiberonly = false, copperonly = false; 218 219 /* Both copper and fiber are set. check MODE[] */ 220 switch (sc->mii_mpd_model) { 221 case MII_MODEL_xxMARVELL_E1011: 222 case MII_MODEL_xxMARVELL_E1111: 223 /* These devices have ESSR register */ 224 PHY_READ(sc, MAKPHY_ESSR, ®); 225 if ((reg & ESSR_AUTOSEL_DISABLE) != 0) { 226 switch (reg & ESSR_HWCFG_MODE) { 227 case ESSR_RTBI_FIBER: 228 case ESSR_RGMII_FIBER: 229 case ESSR_RGMII_SGMII: /* right? */ 230 case ESSR_TBI_FIBER: 231 case ESSR_GMII_FIBER: 232 fiberonly = true; 233 break; 234 case ESSR_SGMII_WC_COPPER: 235 case ESSR_SGMII_WOC_COPPER: 236 case ESSR_RTBI_COPPER: 237 case ESSR_RGMII_COPPER: 238 case ESSR_GMII_COPPER: 239 copperonly = true; 240 default: 241 break; 242 } 243 } 244 break; 245 default: 246 break; 247 } 248 if (fiberonly || copperonly) 249 aprint_debug_dev(self, "both copper and fiber are set " 250 "but MODE[] is %s only.\n", 251 fiberonly ? "fiber" : "copper"); 252 if (fiberonly) 253 sc->mii_extcapabilities 254 &= ~(EXTSR_1000TFDX | EXTSR_1000THDX); 255 else if (copperonly) { 256 sc->mii_extcapabilities 257 &= ~(EXTSR_1000XFDX | EXTSR_1000XHDX); 258 sc->mii_flags &= ~MIIF_IS_1000X; 259 } 260 } 261 mii_unlock(mii); 262 mii_phy_add_media(sc); 263 } 264 265 static void 266 makphy_reset(struct mii_softc *sc) 267 { 268 struct makphy_softc *maksc = (struct makphy_softc *)sc; 269 uint16_t reg; 270 271 KASSERT(mii_locked(sc->mii_pdata)); 272 273 mii_phy_reset(sc); 274 275 /* Initialize PHY Specific Control Register. */ 276 PHY_READ(sc, MAKPHY_PSCR, ®); 277 278 /* Assert CRS on transmit. */ 279 switch (sc->mii_mpd_model) { 280 case MII_MODEL_MARVELL_E1000_0: 281 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 282 break; 283 /* FALLTHROUGH */ 284 case MII_MODEL_MARVELL_E1000_3: 285 case MII_MODEL_MARVELL_E1000_5: 286 case MII_MODEL_MARVELL_E1000_6: 287 case MII_MODEL_xxMARVELL_E1000S: 288 case MII_MODEL_xxMARVELL_E1011: 289 case MII_MODEL_xxMARVELL_E1111: 290 reg |= PSCR_CRS_ON_TX; 291 break; 292 default: /* No PSCR_CRS_ON_TX bit */ 293 break; 294 } 295 296 /* Enable scrambler if necessary. */ 297 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 298 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 299 300 /* 301 * Store next page in the Link Partner Next Page register for 302 * compatibility with 802.3ab. 303 */ 304 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 305 reg |= E3016_PSCR_REG8NXTPG; 306 307 PHY_WRITE(sc, MAKPHY_PSCR, reg); 308 309 /* Configure LEDs if they were left unconfigured. */ 310 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 311 PHY_READ(sc, 0x16, ®); 312 if (reg == 0) { 313 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 314 PHY_WRITE(sc, 0x16, reg); 315 } 316 } 317 318 mii_phy_reset(sc); 319 } 320 321 static void 322 makphy_pdown(struct mii_softc *sc, bool pdown) 323 { 324 uint16_t bmcr, new; 325 bool need_reset = false; 326 327 /* 328 * XXX 329 * PSCR (register 16) should be modified on some chips. 330 */ 331 332 PHY_READ(sc, MII_BMCR, &bmcr); 333 if (pdown) 334 new = bmcr | BMCR_PDOWN; 335 else 336 new = bmcr & ~BMCR_PDOWN; 337 if (bmcr != new) 338 need_reset = true; 339 340 if (need_reset) 341 new |= BMCR_RESET; 342 PHY_WRITE(sc, MII_BMCR, new); 343 } 344 345 static int 346 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 347 { 348 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 349 uint16_t bmcr; 350 351 if (!device_is_active(sc->mii_dev)) 352 return ENXIO; 353 354 KASSERT(mii_locked(mii)); 355 356 switch (cmd) { 357 case MII_POLLSTAT: 358 /* If we're not polling our PHY instance, just return. */ 359 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 360 return 0; 361 break; 362 363 case MII_MEDIACHG: 364 /* 365 * If the media indicates a different PHY instance, 366 * isolate ourselves. 367 */ 368 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 369 PHY_READ(sc, MII_BMCR, &bmcr); 370 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 371 return 0; 372 } 373 374 /* If the interface is not up, don't do anything. */ 375 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 376 break; 377 378 /* Try to power up the PHY in case it's down */ 379 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 380 makphy_pdown(sc, MAKARG_PUP); 381 382 mii_phy_setmedia(sc); 383 384 /* 385 * If autonegitation is not enabled, we need a 386 * software reset for the settings to take effect. 387 */ 388 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 389 makphy_pdown(sc, MAKARG_PDOWN); 390 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 391 PHY_READ(sc, MII_BMCR, &bmcr); 392 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 393 } 394 break; 395 396 case MII_TICK: 397 /* If we're not currently selected, just return. */ 398 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 399 return 0; 400 401 if (mii_phy_tick(sc) == EJUSTRETURN) 402 return 0; 403 break; 404 405 case MII_DOWN: 406 mii_phy_down(sc); 407 return 0; 408 } 409 410 /* Update the media status. */ 411 mii_phy_status(sc); 412 413 /* Callback if something changed. */ 414 mii_phy_update(sc, cmd); 415 return 0; 416 } 417 418 static void 419 makphy_status(struct mii_softc *sc) 420 { 421 struct mii_data *mii = sc->mii_pdata; 422 uint16_t bmcr, gsr, pssr, essr; 423 424 KASSERT(mii_locked(mii)); 425 426 mii->mii_media_status = IFM_AVALID; 427 mii->mii_media_active = IFM_ETHER; 428 429 PHY_READ(sc, MII_BMCR, &bmcr); 430 /* XXX FIXME: Use different page for Fiber on newer chips */ 431 PHY_READ(sc, MAKPHY_PSSR, &pssr); 432 433 if (pssr & MAKPHY_PSSR_LINK) 434 mii->mii_media_status |= IFM_ACTIVE; 435 436 if (bmcr & BMCR_LOOP) 437 mii->mii_media_active |= IFM_LOOP; 438 439 if (bmcr & BMCR_ISO) { 440 mii->mii_media_active |= IFM_NONE; 441 mii->mii_media_status = 0; 442 return; 443 } 444 445 if ((bmcr & BMCR_AUTOEN) != 0) { 446 /* 447 * Check Speed and Duplex Resolved bit. 448 * Note that this bit is always 1 when autonego is not enabled. 449 */ 450 if (!(pssr & MAKPHY_PSSR_RESOLVED)) { 451 /* Erg, still trying, I guess... */ 452 mii->mii_media_active |= IFM_NONE; 453 return; 454 } 455 } else { 456 if ((pssr & MAKPHY_PSSR_LINK) == 0) { 457 mii->mii_media_active |= IFM_NONE; 458 return; 459 } 460 } 461 462 /* 463 * XXX The following code support Fiber/Copper auto select mode 464 * only for 88E1011, 88E1111 and 88E1112. For other chips, the document 465 * is required. 466 */ 467 if (sc->mii_flags & MIIF_IS_1000X) { 468 /* Not in Fiber/Copper auto select mode */ 469 mii->mii_media_active |= IFM_1000_SX; 470 } else if ((sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1011) || 471 (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1111)) { 472 /* Fiber/Copper auto select mode */ 473 474 PHY_READ(sc, MAKPHY_ESSR, &essr); 475 if ((essr & ESSR_FIBER_LINK) == 0) 476 goto copper; 477 478 /* XXX Assume 1000BASE-SX only */ 479 mii->mii_media_active |= IFM_1000_SX; 480 } else if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1112) { 481 /* Fiber/Copper auto select mode */ 482 483 PHY_READ(sc, MAKPHY_PSSR, &pssr); 484 if ((pssr & MAKPHY_PSSR_RESOLUTION_FIBER) == 0) 485 goto copper; 486 487 switch (MAKPHY_PSSR_SPEED_get(pssr)) { 488 case SPEED_1000: 489 mii->mii_media_active |= IFM_1000_SX; 490 break; 491 case SPEED_100: 492 mii->mii_media_active |= IFM_100_FX; 493 break; 494 default: /* Undefined (reserved) value */ 495 mii->mii_media_active |= IFM_NONE; 496 mii->mii_media_status = 0; 497 return; 498 } 499 } else { 500 copper: 501 switch (MAKPHY_PSSR_SPEED_get(pssr)) { 502 case SPEED_1000: 503 mii->mii_media_active |= IFM_1000_T; 504 break; 505 case SPEED_100: 506 mii->mii_media_active |= IFM_100_TX; 507 break; 508 case SPEED_10: 509 mii->mii_media_active |= IFM_10_T; 510 break; 511 default: /* Undefined (reserved) value */ 512 mii->mii_media_active |= IFM_NONE; 513 mii->mii_media_status = 0; 514 return; 515 } 516 } 517 518 if (pssr & MAKPHY_PSSR_DUPLEX) 519 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 520 else 521 mii->mii_media_active |= IFM_HDX; 522 523 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 524 PHY_READ(sc, MII_100T2SR, &gsr); 525 if (gsr & GTSR_MS_RES) 526 mii->mii_media_active |= IFM_ETH_MASTER; 527 } 528 } 529
Indexes created Tue Sep 23 14:10:03 GMT 2025