makphy.c revision 1.42.8.3
1 /* $NetBSD: makphy.c,v 1.42.8.3 2019/08/01 14:27:30 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 1.42.8.3 2019/08/01 14:27:30 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 model, val; 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 switch (model) { 249 case MII_MODEL_xxMARVELL_E1011: 250 case MII_MODEL_xxMARVELL_E1112: 251 val = PHY_READ(sc, MAKPHY_ESSR); 252 if ((val != 0) && (((u_int)val & 0x0000ffffU) != 0x0000ffffU) 253 && ((val & ESSR_FIBER_LINK) != 0)) 254 sc->mii_flags |= MIIF_HAVEFIBER; 255 break; 256 default: 257 break; 258 } 259 260 PHY_RESET(sc); 261 262 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 263 if (sc->mii_capabilities & BMSR_EXTSTAT) 264 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 265 266 aprint_normal_dev(self, ""); 267 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 268 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 269 aprint_error("no media present"); 270 else 271 mii_phy_add_media(sc); 272 aprint_normal("\n"); 273 } 274 275 static void 276 makphy_reset(struct mii_softc *sc) 277 { 278 struct makphy_softc *maksc = (struct makphy_softc *)sc; 279 uint16_t reg; 280 281 mii_phy_reset(sc); 282 283 /* 284 * Initialize PHY Specific Control Register. 285 */ 286 reg = PHY_READ(sc, MAKPHY_PSCR); 287 288 /* Assert CRS on transmit. */ 289 switch (sc->mii_mpd_model) { 290 case MII_MODEL_MARVELL_E1000_0: 291 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 292 break; 293 /* FALLTHROUGH */ 294 case MII_MODEL_MARVELL_E1000_3: 295 case MII_MODEL_MARVELL_E1000_5: 296 case MII_MODEL_MARVELL_E1000_6: 297 case MII_MODEL_xxMARVELL_E1000S: 298 case MII_MODEL_xxMARVELL_E1011: 299 case MII_MODEL_xxMARVELL_E1111: 300 reg |= PSCR_CRS_ON_TX; 301 break; 302 default: /* No PSCR_CRS_ON_TX bit */ 303 break; 304 } 305 306 /* Enable scrambler if necessary. */ 307 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 308 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 309 310 /* 311 * Store next page in the Link Partner Next Page register for 312 * compatibility with 802.3ab. 313 */ 314 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 315 reg |= E3016_PSCR_REG8NXTPG; 316 317 PHY_WRITE(sc, MAKPHY_PSCR, reg); 318 319 /* Configure LEDs if they were left unconfigured. */ 320 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016 && 321 PHY_READ(sc, 0x16) == 0) { 322 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 323 PHY_WRITE(sc, 0x16, reg); 324 } 325 326 mii_phy_reset(sc); 327 } 328 329 static void 330 makphy_pdown(struct mii_softc *sc, bool pdown) 331 { 332 int bmcr, new; 333 bool need_reset = false; 334 335 /* 336 * XXX 337 * PSCR (register 16) should be modified on some chips. 338 */ 339 340 bmcr = PHY_READ(sc, MII_BMCR); 341 if (pdown) 342 new = bmcr | BMCR_PDOWN; 343 else 344 new = bmcr & ~BMCR_PDOWN; 345 if (bmcr != new) 346 need_reset = true; 347 348 if (need_reset) 349 new |= BMCR_RESET; 350 PHY_WRITE(sc, MII_BMCR, new); 351 } 352 353 static int 354 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 355 { 356 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 357 int bmcr; 358 359 if (!device_is_active(sc->mii_dev)) 360 return ENXIO; 361 362 switch (cmd) { 363 case MII_POLLSTAT: 364 /* If we're not polling our PHY instance, just return. */ 365 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 366 return 0; 367 break; 368 369 case MII_MEDIACHG: 370 /* 371 * If the media indicates a different PHY instance, 372 * isolate ourselves. 373 */ 374 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 375 bmcr = PHY_READ(sc, MII_BMCR); 376 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 377 return 0; 378 } 379 380 /* If the interface is not up, don't do anything. */ 381 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 382 break; 383 384 /* Try to power up the PHY in case it's down */ 385 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 386 makphy_pdown(sc, MAKARG_PUP); 387 388 mii_phy_setmedia(sc); 389 390 /* 391 * If autonegitation is not enabled, we need a 392 * software reset for the settings to take effect. 393 */ 394 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 395 makphy_pdown(sc, MAKARG_PDOWN); 396 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 397 bmcr = PHY_READ(sc, MII_BMCR); 398 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 399 } 400 break; 401 402 case MII_TICK: 403 /* If we're not currently selected, just return. */ 404 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 405 return 0; 406 407 if (mii_phy_tick(sc) == EJUSTRETURN) 408 return 0; 409 break; 410 411 case MII_DOWN: 412 mii_phy_down(sc); 413 return 0; 414 } 415 416 /* Update the media status. */ 417 mii_phy_status(sc); 418 419 /* Callback if something changed. */ 420 mii_phy_update(sc, cmd); 421 return 0; 422 } 423 424 static void 425 makphy_status(struct mii_softc *sc) 426 { 427 struct mii_data *mii = sc->mii_pdata; 428 int bmcr, gsr, pssr; 429 430 mii->mii_media_status = IFM_AVALID; 431 mii->mii_media_active = IFM_ETHER; 432 433 bmcr = PHY_READ(sc, MII_BMCR); 434 /* XXX FIXME: Use different page for Fiber on newer chips */ 435 pssr = PHY_READ(sc, MAKPHY_PSSR); 436 437 if (pssr & PSSR_LINK) 438 mii->mii_media_status |= IFM_ACTIVE; 439 440 if (bmcr & BMCR_LOOP) 441 mii->mii_media_active |= IFM_LOOP; 442 443 if (bmcr & BMCR_ISO) { 444 mii->mii_media_active |= IFM_NONE; 445 mii->mii_media_status = 0; 446 return; 447 } 448 449 if ((bmcr & BMCR_AUTOEN) != 0) { 450 /* 451 * Check Speed and Duplex Resolved bit. 452 * Note that this bit is always 1 when autonego is not enabled. 453 */ 454 if (!(pssr & PSSR_RESOLVED)) { 455 /* Erg, still trying, I guess... */ 456 mii->mii_media_active |= IFM_NONE; 457 return; 458 } 459 } else { 460 if ((pssr & PSSR_LINK) == 0) { 461 mii->mii_media_active |= IFM_NONE; 462 return; 463 } 464 } 465 466 /* XXX FIXME: Use different page for Fiber on newer chips */ 467 if (sc->mii_flags & MIIF_IS_1000X) { 468 mii->mii_media_active |= IFM_1000_SX; 469 } else { 470 switch (PSSR_SPEED_get(pssr)) { 471 case SPEED_1000: 472 mii->mii_media_active |= IFM_1000_T; 473 break; 474 case SPEED_100: 475 mii->mii_media_active |= IFM_100_TX; 476 break; 477 case SPEED_10: 478 mii->mii_media_active |= IFM_10_T; 479 break; 480 default: /* Undefined (reserved) value */ 481 mii->mii_media_active |= IFM_NONE; 482 mii->mii_media_status = 0; 483 return; 484 } 485 } 486 487 if (pssr & PSSR_DUPLEX) 488 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 489 else 490 mii->mii_media_active |= IFM_HDX; 491 492 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 493 gsr = PHY_READ(sc, MII_100T2SR); 494 if (gsr & GTSR_MS_RES) 495 mii->mii_media_active |= IFM_ETH_MASTER; 496 } 497 } 498
Indexes created Wed Oct 29 01:09:52 GMT 2025