makphy.c revision 1.60.2.2
1 /* $NetBSD: makphy.c,v 1.60.2.2 2020/08/05 15:14:18 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 1.60.2.2 2020/08/05 15:14:18 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_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 sc->mii_anegticks = MII_ANEGTICKS; 184 185 switch (model) { 186 case MII_MODEL_xxMARVELL_E1000: 187 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 188 goto page0; 189 /* FALLTHROUGH */ 190 case MII_MODEL_xxMARVELL_E1000_3: 191 case MII_MODEL_xxMARVELL_E1000S: 192 case MII_MODEL_xxMARVELL_E1000_5: 193 /* 88E1000 series has no EADR */ 194 break; 195 default: 196 page0: 197 /* Make sure page 0 is selected. */ 198 if (PHY_WRITE(sc, MAKPHY_EADR, 0) != 0) 199 aprint_verbose_dev(self, 200 "Failed to access EADR. Are you an emulator?\n"); 201 break; 202 } 203 204 PHY_RESET(sc); 205 206 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 207 sc->mii_capabilities &= ma->mii_capmask; 208 if (sc->mii_capabilities & BMSR_EXTSTAT) 209 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 210 211 if (((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) 212 != 0) 213 && ((sc->mii_extcapabilities & (EXTSR_1000XFDX | EXTSR_1000XHDX)) 214 != 0)) { 215 bool fiberonly = false, copperonly = false; 216 217 /* Both copper and fiber are set. check MODE[] */ 218 switch (sc->mii_mpd_model) { 219 case MII_MODEL_xxMARVELL_E1011: 220 case MII_MODEL_xxMARVELL_E1111: 221 /* These devices have ESSR register */ 222 PHY_READ(sc, MAKPHY_ESSR, ®); 223 if ((reg & ESSR_AUTOSEL_DISABLE) != 0) { 224 switch (reg & ESSR_HWCFG_MODE) { 225 case ESSR_RTBI_FIBER: 226 case ESSR_RGMII_FIBER: 227 case ESSR_RGMII_SGMII: /* right? */ 228 case ESSR_TBI_FIBER: 229 case ESSR_GMII_FIBER: 230 fiberonly = true; 231 break; 232 case ESSR_SGMII_WC_COPPER: 233 case ESSR_SGMII_WOC_COPPER: 234 case ESSR_RTBI_COPPER: 235 case ESSR_RGMII_COPPER: 236 case ESSR_GMII_COPPER: 237 copperonly = true; 238 default: 239 break; 240 } 241 } 242 break; 243 default: 244 break; 245 } 246 if (fiberonly || copperonly) 247 aprint_debug_dev(self, "both copper and fiber are set " 248 "but MODE[] is %s only.\n", 249 fiberonly ? "fiber" : "copper"); 250 if (fiberonly) 251 sc->mii_extcapabilities 252 &= ~(EXTSR_1000TFDX | EXTSR_1000THDX); 253 else if (copperonly) { 254 sc->mii_extcapabilities 255 &= ~(EXTSR_1000XFDX | EXTSR_1000XHDX); 256 sc->mii_flags &= ~MIIF_IS_1000X; 257 } 258 } 259 260 aprint_normal_dev(self, ""); 261 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 262 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 263 aprint_error("no media present"); 264 else 265 mii_phy_add_media(sc); 266 aprint_normal("\n"); 267 } 268 269 static void 270 makphy_reset(struct mii_softc *sc) 271 { 272 struct makphy_softc *maksc = (struct makphy_softc *)sc; 273 uint16_t reg; 274 275 mii_phy_reset(sc); 276 277 /* Initialize PHY Specific Control Register. */ 278 PHY_READ(sc, MAKPHY_PSCR, ®); 279 280 /* Assert CRS on transmit. */ 281 switch (sc->mii_mpd_model) { 282 case MII_MODEL_MARVELL_E1000_0: 283 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 284 break; 285 /* FALLTHROUGH */ 286 case MII_MODEL_MARVELL_E1000_3: 287 case MII_MODEL_MARVELL_E1000_5: 288 case MII_MODEL_MARVELL_E1000_6: 289 case MII_MODEL_xxMARVELL_E1000S: 290 case MII_MODEL_xxMARVELL_E1011: 291 case MII_MODEL_xxMARVELL_E1111: 292 reg |= PSCR_CRS_ON_TX; 293 break; 294 default: /* No PSCR_CRS_ON_TX bit */ 295 break; 296 } 297 298 /* Enable scrambler if necessary. */ 299 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 300 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 301 302 /* 303 * Store next page in the Link Partner Next Page register for 304 * compatibility with 802.3ab. 305 */ 306 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 307 reg |= E3016_PSCR_REG8NXTPG; 308 309 PHY_WRITE(sc, MAKPHY_PSCR, reg); 310 311 /* Configure LEDs if they were left unconfigured. */ 312 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 313 PHY_READ(sc, 0x16, ®); 314 if (reg == 0) { 315 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 316 PHY_WRITE(sc, 0x16, reg); 317 } 318 } 319 320 mii_phy_reset(sc); 321 } 322 323 static void 324 makphy_pdown(struct mii_softc *sc, bool pdown) 325 { 326 uint16_t bmcr, new; 327 bool need_reset = false; 328 329 /* 330 * XXX 331 * PSCR (register 16) should be modified on some chips. 332 */ 333 334 PHY_READ(sc, MII_BMCR, &bmcr); 335 if (pdown) 336 new = bmcr | BMCR_PDOWN; 337 else 338 new = bmcr & ~BMCR_PDOWN; 339 if (bmcr != new) 340 need_reset = true; 341 342 if (need_reset) 343 new |= BMCR_RESET; 344 PHY_WRITE(sc, MII_BMCR, new); 345 } 346 347 static int 348 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 349 { 350 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 351 uint16_t bmcr; 352 353 if (!device_is_active(sc->mii_dev)) 354 return ENXIO; 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 mii->mii_media_status = IFM_AVALID; 425 mii->mii_media_active = IFM_ETHER; 426 427 PHY_READ(sc, MII_BMCR, &bmcr); 428 /* XXX FIXME: Use different page for Fiber on newer chips */ 429 PHY_READ(sc, MAKPHY_PSSR, &pssr); 430 431 if (pssr & MAKPHY_PSSR_LINK) 432 mii->mii_media_status |= IFM_ACTIVE; 433 434 if (bmcr & BMCR_LOOP) 435 mii->mii_media_active |= IFM_LOOP; 436 437 if (bmcr & BMCR_ISO) { 438 mii->mii_media_active |= IFM_NONE; 439 mii->mii_media_status = 0; 440 return; 441 } 442 443 if ((bmcr & BMCR_AUTOEN) != 0) { 444 /* 445 * Check Speed and Duplex Resolved bit. 446 * Note that this bit is always 1 when autonego is not enabled. 447 */ 448 if (!(pssr & MAKPHY_PSSR_RESOLVED)) { 449 /* Erg, still trying, I guess... */ 450 mii->mii_media_active |= IFM_NONE; 451 return; 452 } 453 } else { 454 if ((pssr & MAKPHY_PSSR_LINK) == 0) { 455 mii->mii_media_active |= IFM_NONE; 456 return; 457 } 458 } 459 460 /* 461 * XXX The following code support Fiber/Copper auto select mode 462 * only for 88E1011, 88E1111 and 88E1112. For other chips, the document 463 * is required. 464 */ 465 if (sc->mii_flags & MIIF_IS_1000X) { 466 /* Not in Fiber/Copper auto select mode */ 467 mii->mii_media_active |= IFM_1000_SX; 468 } else if ((sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1011) || 469 (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1111)) { 470 /* Fiber/Copper auto select mode */ 471 472 PHY_READ(sc, MAKPHY_ESSR, &essr); 473 if ((essr & ESSR_FIBER_LINK) == 0) 474 goto copper; 475 476 /* XXX Assume 1000BASE-SX only */ 477 mii->mii_media_active |= IFM_1000_SX; 478 } else if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1112) { 479 /* Fiber/Copper auto select mode */ 480 481 PHY_READ(sc, MAKPHY_PSSR, &pssr); 482 if ((pssr & MAKPHY_PSSR_RESOLUTION_FIBER) == 0) 483 goto copper; 484 485 switch (MAKPHY_PSSR_SPEED_get(pssr)) { 486 case SPEED_1000: 487 mii->mii_media_active |= IFM_1000_SX; 488 break; 489 case SPEED_100: 490 mii->mii_media_active |= IFM_100_FX; 491 break; 492 default: /* Undefined (reserved) value */ 493 mii->mii_media_active |= IFM_NONE; 494 mii->mii_media_status = 0; 495 return; 496 } 497 } else { 498 copper: 499 switch (MAKPHY_PSSR_SPEED_get(pssr)) { 500 case SPEED_1000: 501 mii->mii_media_active |= IFM_1000_T; 502 break; 503 case SPEED_100: 504 mii->mii_media_active |= IFM_100_TX; 505 break; 506 case SPEED_10: 507 mii->mii_media_active |= IFM_10_T; 508 break; 509 default: /* Undefined (reserved) value */ 510 mii->mii_media_active |= IFM_NONE; 511 mii->mii_media_status = 0; 512 return; 513 } 514 } 515 516 if (pssr & MAKPHY_PSSR_DUPLEX) 517 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 518 else 519 mii->mii_media_active |= IFM_HDX; 520 521 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 522 PHY_READ(sc, MII_100T2SR, &gsr); 523 if (gsr & GTSR_MS_RES) 524 mii->mii_media_active |= IFM_ETH_MASTER; 525 } 526 } 527
Indexes created Thu Oct 23 22:10:10 GMT 2025