makphy.c revision 1.42.8.6
1 /* $NetBSD: makphy.c,v 1.42.8.6 2022/01/29 16:56:18 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 1.42.8.6 2022/01/29 16:56:18 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 #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_OUI_MARVELL, MII_MODEL_MARVELL_E1000_0, 97 MII_STR_MARVELL_E1000_0 }, 98 99 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_3, 100 MII_STR_MARVELL_E1000_3 }, 101 102 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_5, 103 MII_STR_MARVELL_E1000_5 }, 104 105 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_6, 106 MII_STR_MARVELL_E1000_6 }, 107 108 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 109 MII_STR_xxMARVELL_E1000_3 }, 110 111 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 112 MII_STR_xxMARVELL_E1000_5 }, 113 114 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000S, 115 MII_STR_xxMARVELL_E1000S }, 116 117 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 118 MII_STR_xxMARVELL_E1011 }, 119 120 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 121 MII_STR_xxMARVELL_E1111 }, 122 123 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1112, 124 MII_STR_xxMARVELL_E1112 }, 125 126 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 127 MII_STR_xxMARVELL_E1116 }, 128 129 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R, 130 MII_STR_xxMARVELL_E1116R }, 131 132 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1318S, 133 MII_STR_xxMARVELL_E1318S }, 134 135 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1118, 136 MII_STR_xxMARVELL_E1118 }, 137 138 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, 139 MII_STR_xxMARVELL_E1145 }, 140 141 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149, 142 MII_STR_xxMARVELL_E1149 }, 143 144 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149R, 145 MII_STR_xxMARVELL_E1149R }, 146 147 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1240, 148 MII_STR_xxMARVELL_E1240 }, 149 150 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1512, 151 MII_STR_xxMARVELL_E1512 }, 152 153 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1543, 154 MII_STR_xxMARVELL_E1543 }, 155 156 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3016, 157 MII_STR_xxMARVELL_E3016 }, 158 159 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3082, 160 MII_STR_xxMARVELL_E3082 }, 161 162 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_PHYG65G, 163 MII_STR_xxMARVELL_PHYG65G }, 164 165 { 0, 0, 166 NULL }, 167 }; 168 169 #define MAKARG_PDOWN true /* Power DOWN */ 170 #define MAKARG_PUP false /* Power UP */ 171 172 static bool 173 makphy_isi210(device_t parent, struct mii_attach_args *ma) 174 { 175 176 /* I21[01]'s model number is 0 */ 177 if ((MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxMARVELL) 178 && (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_I210) 179 && (device_is_a(parent, "wm"))) 180 return true; 181 return false; 182 } 183 184 static int 185 makphymatch(device_t parent, cfdata_t match, void *aux) 186 { 187 struct mii_attach_args *ma = aux; 188 189 if (mii_phy_match(ma, makphys) != NULL) 190 return 10; 191 192 if (makphy_isi210(parent, ma)) 193 return 10; 194 195 return 0; 196 } 197 198 static void 199 makphyattach(device_t parent, device_t self, void *aux) 200 { 201 struct mii_softc *sc = device_private(self); 202 struct mii_attach_args *ma = aux; 203 struct mii_data *mii = ma->mii_data; 204 const struct mii_phydesc *mpd; 205 struct makphy_softc *maksc = (struct makphy_softc *)sc; 206 const char *name; 207 int reg, model; 208 209 mpd = mii_phy_match(ma, makphys); 210 aprint_naive(": Media interface\n"); 211 if (mpd) 212 name = mpd->mpd_name; 213 else if (makphy_isi210(parent, ma)) { 214 name = MII_STR_xxMARVELL_I210; 215 maksc->sc_flags |= MAKPHY_F_I210; 216 } else 217 panic("Unknown PHY"); 218 aprint_normal(": %s, rev. %d\n", name, MII_REV(ma->mii_id2)); 219 220 sc->mii_dev = self; 221 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 222 sc->mii_mpd_model = model = MII_MODEL(ma->mii_id2); 223 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 224 sc->mii_inst = mii->mii_instance; 225 sc->mii_phy = ma->mii_phyno; 226 sc->mii_funcs = &makphy_funcs; 227 sc->mii_pdata = mii; 228 sc->mii_flags = ma->mii_flags; 229 sc->mii_anegticks = MII_ANEGTICKS; 230 231 switch (model) { 232 case MII_MODEL_xxMARVELL_E1000: 233 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 234 goto page0; 235 /* FALLTHROUGH */ 236 case MII_MODEL_xxMARVELL_E1000_3: 237 case MII_MODEL_xxMARVELL_E1000S: 238 case MII_MODEL_xxMARVELL_E1000_5: 239 /* 88E1000 series has no EADR */ 240 break; 241 default: 242 page0: 243 /* Make sure page 0 is selected. */ 244 PHY_WRITE(sc, MAKPHY_EADR, 0); 245 break; 246 } 247 248 PHY_RESET(sc); 249 250 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 251 if (sc->mii_capabilities & BMSR_EXTSTAT) 252 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 253 254 if (((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) 255 != 0) 256 && ((sc->mii_extcapabilities & (EXTSR_1000XFDX | EXTSR_1000XHDX)) 257 != 0)) { 258 bool fiberonly = false, copperonly = false; 259 260 /* Both copper and fiber are set. check MODE[] */ 261 switch (sc->mii_mpd_model) { 262 case MII_MODEL_xxMARVELL_E1011: 263 case MII_MODEL_xxMARVELL_E1111: 264 /* These devices have ESSR register */ 265 reg = PHY_READ(sc, MAKPHY_ESSR); 266 if ((reg & ESSR_AUTOSEL_DISABLE) != 0) { 267 switch (reg & ESSR_HWCFG_MODE) { 268 case ESSR_RTBI_FIBER: 269 case ESSR_RGMII_FIBER: 270 case ESSR_RGMII_SGMII: /* right? */ 271 case ESSR_TBI_FIBER: 272 case ESSR_GMII_FIBER: 273 fiberonly = true; 274 break; 275 case ESSR_SGMII_WC_COPPER: 276 case ESSR_SGMII_WOC_COPPER: 277 case ESSR_RTBI_COPPER: 278 case ESSR_RGMII_COPPER: 279 case ESSR_GMII_COPPER: 280 copperonly = true; 281 default: 282 break; 283 } 284 } 285 break; 286 default: 287 break; 288 } 289 if (fiberonly || copperonly) 290 aprint_debug_dev(self, "both copper and fiber are set " 291 "but MODE[] is %s only.\n", 292 fiberonly ? "fiber" : "copper"); 293 if (fiberonly) 294 sc->mii_extcapabilities 295 &= ~(EXTSR_1000TFDX | EXTSR_1000THDX); 296 else if (copperonly) { 297 sc->mii_extcapabilities 298 &= ~(EXTSR_1000XFDX | EXTSR_1000XHDX); 299 sc->mii_flags &= ~MIIF_IS_1000X; 300 } 301 } 302 303 aprint_normal_dev(self, ""); 304 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 305 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 306 aprint_error("no media present"); 307 else 308 mii_phy_add_media(sc); 309 aprint_normal("\n"); 310 } 311 312 static void 313 makphy_reset(struct mii_softc *sc) 314 { 315 struct makphy_softc *maksc = (struct makphy_softc *)sc; 316 uint16_t reg; 317 318 mii_phy_reset(sc); 319 320 /* Initialize PHY Specific Control Register. */ 321 reg = PHY_READ(sc, MAKPHY_PSCR); 322 323 /* Assert CRS on transmit. */ 324 switch (sc->mii_mpd_model) { 325 case MII_MODEL_MARVELL_E1000_0: 326 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 327 break; 328 /* FALLTHROUGH */ 329 case MII_MODEL_MARVELL_E1000_3: 330 case MII_MODEL_MARVELL_E1000_5: 331 case MII_MODEL_MARVELL_E1000_6: 332 case MII_MODEL_xxMARVELL_E1000S: 333 case MII_MODEL_xxMARVELL_E1011: 334 case MII_MODEL_xxMARVELL_E1111: 335 reg |= PSCR_CRS_ON_TX; 336 break; 337 default: /* No PSCR_CRS_ON_TX bit */ 338 break; 339 } 340 341 /* Enable scrambler if necessary. */ 342 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 343 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 344 345 /* 346 * Store next page in the Link Partner Next Page register for 347 * compatibility with 802.3ab. 348 */ 349 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 350 reg |= E3016_PSCR_REG8NXTPG; 351 352 PHY_WRITE(sc, MAKPHY_PSCR, reg); 353 354 /* Configure LEDs if they were left unconfigured. */ 355 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016 && 356 PHY_READ(sc, 0x16) == 0) { 357 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 358 PHY_WRITE(sc, 0x16, reg); 359 } 360 361 mii_phy_reset(sc); 362 } 363 364 static void 365 makphy_pdown(struct mii_softc *sc, bool pdown) 366 { 367 int bmcr, new; 368 bool need_reset = false; 369 370 /* 371 * XXX 372 * PSCR (register 16) should be modified on some chips. 373 */ 374 375 bmcr = PHY_READ(sc, MII_BMCR); 376 if (pdown) 377 new = bmcr | BMCR_PDOWN; 378 else 379 new = bmcr & ~BMCR_PDOWN; 380 if (bmcr != new) 381 need_reset = true; 382 383 if (need_reset) 384 new |= BMCR_RESET; 385 PHY_WRITE(sc, MII_BMCR, new); 386 } 387 388 static int 389 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 390 { 391 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 392 int bmcr; 393 394 if (!device_is_active(sc->mii_dev)) 395 return ENXIO; 396 397 switch (cmd) { 398 case MII_POLLSTAT: 399 /* If we're not polling our PHY instance, just return. */ 400 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 401 return 0; 402 break; 403 404 case MII_MEDIACHG: 405 /* 406 * If the media indicates a different PHY instance, 407 * isolate ourselves. 408 */ 409 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 410 bmcr = PHY_READ(sc, MII_BMCR); 411 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 412 return 0; 413 } 414 415 /* If the interface is not up, don't do anything. */ 416 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 417 break; 418 419 /* Try to power up the PHY in case it's down */ 420 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 421 makphy_pdown(sc, MAKARG_PUP); 422 423 mii_phy_setmedia(sc); 424 425 /* 426 * If autonegitation is not enabled, we need a 427 * software reset for the settings to take effect. 428 */ 429 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 430 makphy_pdown(sc, MAKARG_PDOWN); 431 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 432 bmcr = PHY_READ(sc, MII_BMCR); 433 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 434 } 435 break; 436 437 case MII_TICK: 438 /* If we're not currently selected, just return. */ 439 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 440 return 0; 441 442 if (mii_phy_tick(sc) == EJUSTRETURN) 443 return 0; 444 break; 445 446 case MII_DOWN: 447 mii_phy_down(sc); 448 return 0; 449 } 450 451 /* Update the media status. */ 452 mii_phy_status(sc); 453 454 /* Callback if something changed. */ 455 mii_phy_update(sc, cmd); 456 return 0; 457 } 458 459 static void 460 makphy_status(struct mii_softc *sc) 461 { 462 struct mii_data *mii = sc->mii_pdata; 463 int bmcr, gsr, pssr, essr; 464 465 mii->mii_media_status = IFM_AVALID; 466 mii->mii_media_active = IFM_ETHER; 467 468 bmcr = PHY_READ(sc, MII_BMCR); 469 /* XXX FIXME: Use different page for Fiber on newer chips */ 470 pssr = PHY_READ(sc, MAKPHY_PSSR); 471 472 if (pssr & MAKPHY_PSSR_LINK) 473 mii->mii_media_status |= IFM_ACTIVE; 474 475 if (bmcr & BMCR_LOOP) 476 mii->mii_media_active |= IFM_LOOP; 477 478 if (bmcr & (BMCR_ISO | BMCR_PDOWN)) { 479 mii->mii_media_active |= IFM_NONE; 480 return; 481 } 482 483 if ((bmcr & BMCR_AUTOEN) != 0) { 484 /* 485 * Check Speed and Duplex Resolved bit. 486 * Note that this bit is always 1 when autonego is not enabled. 487 */ 488 if (!(pssr & MAKPHY_PSSR_RESOLVED)) { 489 /* Erg, still trying, I guess... */ 490 mii->mii_media_active |= IFM_NONE; 491 return; 492 } 493 } else { 494 if ((pssr & MAKPHY_PSSR_LINK) == 0) { 495 mii->mii_media_active |= IFM_NONE; 496 return; 497 } 498 } 499 500 /* 501 * XXX The following code support Fiber/Copper auto select mode 502 * only for 88E1011, 88E1111 and 88E1112. For other chips, the document 503 * is required. 504 */ 505 if (sc->mii_flags & MIIF_IS_1000X) { 506 /* Not in Fiber/Copper auto select mode */ 507 mii->mii_media_active |= IFM_1000_SX; 508 } else if ((sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1011) || 509 (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1111)) { 510 /* Fiber/Copper auto select mode */ 511 512 essr = PHY_READ(sc, MAKPHY_ESSR); 513 if ((essr & ESSR_FIBER_LINK) == 0) 514 goto copper; 515 516 /* XXX Assume 1000BASE-SX only */ 517 mii->mii_media_active |= IFM_1000_SX; 518 } else if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1112) { 519 /* Fiber/Copper auto select mode */ 520 521 pssr = PHY_READ(sc, MAKPHY_PSSR); 522 if ((pssr & MAKPHY_PSSR_RESOLUTION_FIBER) == 0) 523 goto copper; 524 525 switch (MAKPHY_PSSR_SPEED_get(pssr)) { 526 case SPEED_1000: 527 mii->mii_media_active |= IFM_1000_SX; 528 break; 529 case SPEED_100: 530 mii->mii_media_active |= IFM_100_FX; 531 break; 532 default: /* Undefined (reserved) value */ 533 mii->mii_media_active |= IFM_NONE; 534 mii->mii_media_status = 0; 535 return; 536 } 537 } else { 538 copper: 539 switch (MAKPHY_PSSR_SPEED_get(pssr)) { 540 case SPEED_1000: 541 mii->mii_media_active |= IFM_1000_T; 542 break; 543 case SPEED_100: 544 mii->mii_media_active |= IFM_100_TX; 545 break; 546 case SPEED_10: 547 mii->mii_media_active |= IFM_10_T; 548 break; 549 default: /* Undefined (reserved) value */ 550 mii->mii_media_active |= IFM_NONE; 551 mii->mii_media_status = 0; 552 return; 553 } 554 } 555 556 if (pssr & MAKPHY_PSSR_DUPLEX) 557 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 558 else 559 mii->mii_media_active |= IFM_HDX; 560 561 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 562 gsr = PHY_READ(sc, MII_100T2SR); 563 if (gsr & GTSR_MS_RES) 564 mii->mii_media_active |= IFM_ETH_MASTER; 565 } 566 } 567
Indexes created Sun Oct 26 13:09:57 GMT 2025