makphy.c revision 1.63.2.1
1 /* $NetBSD: makphy.c,v 1.63.2.1 2020/02/29 20:19:09 ad 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 1.63.2.1 2020/02/29 20:19:09 ad 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 switch (model) { 185 case MII_MODEL_xxMARVELL_E1000: 186 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 187 goto page0; 188 /* FALLTHROUGH */ 189 case MII_MODEL_xxMARVELL_E1000_3: 190 case MII_MODEL_xxMARVELL_E1000S: 191 case MII_MODEL_xxMARVELL_E1000_5: 192 /* 88E1000 series has no EADR */ 193 break; 194 default: 195 page0: 196 /* Make sure page 0 is selected. */ 197 if (PHY_WRITE(sc, MAKPHY_EADR, 0) != 0) 198 aprint_verbose_dev(self, 199 "Failed to access EADR. Are you an emulator?\n"); 200 break; 201 } 202 203 PHY_RESET(sc); 204 205 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 206 sc->mii_capabilities &= ma->mii_capmask; 207 if (sc->mii_capabilities & BMSR_EXTSTAT) 208 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 209 210 if (((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) 211 != 0) 212 && ((sc->mii_extcapabilities & (EXTSR_1000XFDX | EXTSR_1000XHDX)) 213 != 0)) { 214 bool fiberonly = false, copperonly = false; 215 216 /* Both copper and fiber are set. check MODE[] */ 217 switch (sc->mii_mpd_model) { 218 case MII_MODEL_xxMARVELL_E1011: 219 case MII_MODEL_xxMARVELL_E1111: 220 /* These devices have ESSR register */ 221 PHY_READ(sc, MAKPHY_ESSR, ®); 222 if ((reg & ESSR_AUTOSEL_DISABLE) != 0) { 223 switch (reg & ESSR_HWCFG_MODE) { 224 case ESSR_RTBI_FIBER: 225 case ESSR_RGMII_FIBER: 226 case ESSR_RGMII_SGMII: /* right? */ 227 case ESSR_TBI_FIBER: 228 case ESSR_GMII_FIBER: 229 fiberonly = true; 230 break; 231 case ESSR_SGMII_WC_COPPER: 232 case ESSR_SGMII_WOC_COPPER: 233 case ESSR_RTBI_COPPER: 234 case ESSR_RGMII_COPPER: 235 case ESSR_GMII_COPPER: 236 copperonly = true; 237 default: 238 break; 239 } 240 } 241 break; 242 default: 243 break; 244 } 245 if (fiberonly || copperonly) 246 aprint_debug_dev(self, "both copper and fiber are set " 247 "but MODE[] is %s only.\n", 248 fiberonly ? "fiber" : "copper"); 249 if (fiberonly) 250 sc->mii_extcapabilities 251 &= ~(EXTSR_1000TFDX | EXTSR_1000THDX); 252 else if (copperonly) { 253 sc->mii_extcapabilities 254 &= ~(EXTSR_1000XFDX | EXTSR_1000XHDX); 255 sc->mii_flags &= ~MIIF_IS_1000X; 256 } 257 } 258 mii_phy_add_media(sc); 259 } 260 261 static void 262 makphy_reset(struct mii_softc *sc) 263 { 264 struct makphy_softc *maksc = (struct makphy_softc *)sc; 265 uint16_t reg; 266 267 mii_phy_reset(sc); 268 269 /* Initialize PHY Specific Control Register. */ 270 PHY_READ(sc, MAKPHY_PSCR, ®); 271 272 /* Assert CRS on transmit. */ 273 switch (sc->mii_mpd_model) { 274 case MII_MODEL_MARVELL_E1000_0: 275 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 276 break; 277 /* FALLTHROUGH */ 278 case MII_MODEL_MARVELL_E1000_3: 279 case MII_MODEL_MARVELL_E1000_5: 280 case MII_MODEL_MARVELL_E1000_6: 281 case MII_MODEL_xxMARVELL_E1000S: 282 case MII_MODEL_xxMARVELL_E1011: 283 case MII_MODEL_xxMARVELL_E1111: 284 reg |= PSCR_CRS_ON_TX; 285 break; 286 default: /* No PSCR_CRS_ON_TX bit */ 287 break; 288 } 289 290 /* Enable scrambler if necessary. */ 291 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 292 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 293 294 /* 295 * Store next page in the Link Partner Next Page register for 296 * compatibility with 802.3ab. 297 */ 298 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 299 reg |= E3016_PSCR_REG8NXTPG; 300 301 PHY_WRITE(sc, MAKPHY_PSCR, reg); 302 303 /* Configure LEDs if they were left unconfigured. */ 304 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 305 PHY_READ(sc, 0x16, ®); 306 if (reg == 0) { 307 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 308 PHY_WRITE(sc, 0x16, reg); 309 } 310 } 311 312 mii_phy_reset(sc); 313 } 314 315 static void 316 makphy_pdown(struct mii_softc *sc, bool pdown) 317 { 318 uint16_t bmcr, new; 319 bool need_reset = false; 320 321 /* 322 * XXX 323 * PSCR (register 16) should be modified on some chips. 324 */ 325 326 PHY_READ(sc, MII_BMCR, &bmcr); 327 if (pdown) 328 new = bmcr | BMCR_PDOWN; 329 else 330 new = bmcr & ~BMCR_PDOWN; 331 if (bmcr != new) 332 need_reset = true; 333 334 if (need_reset) 335 new |= BMCR_RESET; 336 PHY_WRITE(sc, MII_BMCR, new); 337 } 338 339 static int 340 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 341 { 342 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 343 uint16_t bmcr; 344 345 if (!device_is_active(sc->mii_dev)) 346 return ENXIO; 347 348 switch (cmd) { 349 case MII_POLLSTAT: 350 /* If we're not polling our PHY instance, just return. */ 351 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 352 return 0; 353 break; 354 355 case MII_MEDIACHG: 356 /* 357 * If the media indicates a different PHY instance, 358 * isolate ourselves. 359 */ 360 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 361 PHY_READ(sc, MII_BMCR, &bmcr); 362 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 363 return 0; 364 } 365 366 /* If the interface is not up, don't do anything. */ 367 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 368 break; 369 370 /* Try to power up the PHY in case it's down */ 371 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 372 makphy_pdown(sc, MAKARG_PUP); 373 374 mii_phy_setmedia(sc); 375 376 /* 377 * If autonegitation is not enabled, we need a 378 * software reset for the settings to take effect. 379 */ 380 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 381 makphy_pdown(sc, MAKARG_PDOWN); 382 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 383 PHY_READ(sc, MII_BMCR, &bmcr); 384 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 385 } 386 break; 387 388 case MII_TICK: 389 /* If we're not currently selected, just return. */ 390 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 391 return 0; 392 393 if (mii_phy_tick(sc) == EJUSTRETURN) 394 return 0; 395 break; 396 397 case MII_DOWN: 398 mii_phy_down(sc); 399 return 0; 400 } 401 402 /* Update the media status. */ 403 mii_phy_status(sc); 404 405 /* Callback if something changed. */ 406 mii_phy_update(sc, cmd); 407 return 0; 408 } 409 410 static void 411 makphy_status(struct mii_softc *sc) 412 { 413 struct mii_data *mii = sc->mii_pdata; 414 uint16_t bmcr, gsr, pssr, essr; 415 416 mii->mii_media_status = IFM_AVALID; 417 mii->mii_media_active = IFM_ETHER; 418 419 PHY_READ(sc, MII_BMCR, &bmcr); 420 /* XXX FIXME: Use different page for Fiber on newer chips */ 421 PHY_READ(sc, MAKPHY_PSSR, &pssr); 422 423 if (pssr & PSSR_LINK) 424 mii->mii_media_status |= IFM_ACTIVE; 425 426 if (bmcr & BMCR_LOOP) 427 mii->mii_media_active |= IFM_LOOP; 428 429 if (bmcr & BMCR_ISO) { 430 mii->mii_media_active |= IFM_NONE; 431 mii->mii_media_status = 0; 432 return; 433 } 434 435 if ((bmcr & BMCR_AUTOEN) != 0) { 436 /* 437 * Check Speed and Duplex Resolved bit. 438 * Note that this bit is always 1 when autonego is not enabled. 439 */ 440 if (!(pssr & PSSR_RESOLVED)) { 441 /* Erg, still trying, I guess... */ 442 mii->mii_media_active |= IFM_NONE; 443 return; 444 } 445 } else { 446 if ((pssr & PSSR_LINK) == 0) { 447 mii->mii_media_active |= IFM_NONE; 448 return; 449 } 450 } 451 452 /* 453 * XXX The following code support Fiber/Copper auto select mode 454 * only for 88E1011, 88E1111 and 88E1112. For other chips, the document 455 * is required. 456 */ 457 if (sc->mii_flags & MIIF_IS_1000X) { 458 /* Not in Fiber/Copper auto select mode */ 459 mii->mii_media_active |= IFM_1000_SX; 460 } else if ((sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1011) || 461 (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1111)) { 462 /* Fiber/Copper auto select mode */ 463 464 PHY_READ(sc, MAKPHY_ESSR, &essr); 465 if ((essr & ESSR_FIBER_LINK) == 0) 466 goto copper; 467 468 /* XXX Assume 1000BASE-SX only */ 469 mii->mii_media_active |= IFM_1000_SX; 470 } else if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E1112) { 471 /* Fiber/Copper auto select mode */ 472 473 PHY_READ(sc, MAKPHY_PSSR, &pssr); 474 if ((pssr & PSSR_RESOLUTION_FIBER) == 0) 475 goto copper; 476 477 switch (PSSR_SPEED_get(pssr)) { 478 case SPEED_1000: 479 mii->mii_media_active |= IFM_1000_SX; 480 break; 481 case SPEED_100: 482 mii->mii_media_active |= IFM_100_FX; 483 break; 484 default: /* Undefined (reserved) value */ 485 mii->mii_media_active |= IFM_NONE; 486 mii->mii_media_status = 0; 487 return; 488 } 489 } else { 490 copper: 491 switch (PSSR_SPEED_get(pssr)) { 492 case SPEED_1000: 493 mii->mii_media_active |= IFM_1000_T; 494 break; 495 case SPEED_100: 496 mii->mii_media_active |= IFM_100_TX; 497 break; 498 case SPEED_10: 499 mii->mii_media_active |= IFM_10_T; 500 break; 501 default: /* Undefined (reserved) value */ 502 mii->mii_media_active |= IFM_NONE; 503 mii->mii_media_status = 0; 504 return; 505 } 506 } 507 508 if (pssr & PSSR_DUPLEX) 509 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 510 else 511 mii->mii_media_active |= IFM_HDX; 512 513 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 514 PHY_READ(sc, MII_100T2SR, &gsr); 515 if (gsr & GTSR_MS_RES) 516 mii->mii_media_active |= IFM_ETH_MASTER; 517 } 518 } 519
Indexes created Sun Oct 26 13:09:57 GMT 2025