makphy.c revision 1.61
1 /* $NetBSD: makphy.c,v 1.61 2019/11/26 08:19:51 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 1.61 2019/11/26 08:19:51 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_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 switch (model) { 205 case MII_MODEL_xxMARVELL_E1011: 206 case MII_MODEL_xxMARVELL_E1112: 207 if (PHY_READ(sc, MAKPHY_ESSR, ®) != 0) { 208 aprint_verbose_dev(self, 209 "Failed to read MAKPHY_ESSR\n"); 210 break; 211 } 212 if (reg & ESSR_FIBER_LINK) 213 sc->mii_flags |= MIIF_HAVEFIBER; 214 break; 215 default: 216 break; 217 } 218 219 PHY_RESET(sc); 220 221 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 222 sc->mii_capabilities &= ma->mii_capmask; 223 if (sc->mii_capabilities & BMSR_EXTSTAT) 224 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 225 226 aprint_normal_dev(self, ""); 227 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 228 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 229 aprint_error("no media present"); 230 else 231 mii_phy_add_media(sc); 232 aprint_normal("\n"); 233 } 234 235 static void 236 makphy_reset(struct mii_softc *sc) 237 { 238 struct makphy_softc *maksc = (struct makphy_softc *)sc; 239 uint16_t reg; 240 241 mii_phy_reset(sc); 242 243 /* Initialize PHY Specific Control Register. */ 244 PHY_READ(sc, MAKPHY_PSCR, ®); 245 246 /* Assert CRS on transmit. */ 247 switch (sc->mii_mpd_model) { 248 case MII_MODEL_MARVELL_E1000_0: 249 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 250 break; 251 /* FALLTHROUGH */ 252 case MII_MODEL_MARVELL_E1000_3: 253 case MII_MODEL_MARVELL_E1000_5: 254 case MII_MODEL_MARVELL_E1000_6: 255 case MII_MODEL_xxMARVELL_E1000S: 256 case MII_MODEL_xxMARVELL_E1011: 257 case MII_MODEL_xxMARVELL_E1111: 258 reg |= PSCR_CRS_ON_TX; 259 break; 260 default: /* No PSCR_CRS_ON_TX bit */ 261 break; 262 } 263 264 /* Enable scrambler if necessary. */ 265 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 266 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 267 268 /* 269 * Store next page in the Link Partner Next Page register for 270 * compatibility with 802.3ab. 271 */ 272 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 273 reg |= E3016_PSCR_REG8NXTPG; 274 275 PHY_WRITE(sc, MAKPHY_PSCR, reg); 276 277 /* Configure LEDs if they were left unconfigured. */ 278 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 279 PHY_READ(sc, 0x16, ®); 280 if (reg == 0) { 281 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 282 PHY_WRITE(sc, 0x16, reg); 283 } 284 } 285 286 mii_phy_reset(sc); 287 } 288 289 static void 290 makphy_pdown(struct mii_softc *sc, bool pdown) 291 { 292 uint16_t bmcr, new; 293 bool need_reset = false; 294 295 /* 296 * XXX 297 * PSCR (register 16) should be modified on some chips. 298 */ 299 300 PHY_READ(sc, MII_BMCR, &bmcr); 301 if (pdown) 302 new = bmcr | BMCR_PDOWN; 303 else 304 new = bmcr & ~BMCR_PDOWN; 305 if (bmcr != new) 306 need_reset = true; 307 308 if (need_reset) 309 new |= BMCR_RESET; 310 PHY_WRITE(sc, MII_BMCR, new); 311 } 312 313 static int 314 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 315 { 316 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 317 uint16_t bmcr; 318 319 if (!device_is_active(sc->mii_dev)) 320 return ENXIO; 321 322 switch (cmd) { 323 case MII_POLLSTAT: 324 /* If we're not polling our PHY instance, just return. */ 325 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 326 return 0; 327 break; 328 329 case MII_MEDIACHG: 330 /* 331 * If the media indicates a different PHY instance, 332 * isolate ourselves. 333 */ 334 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 335 PHY_READ(sc, MII_BMCR, &bmcr); 336 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 337 return 0; 338 } 339 340 /* If the interface is not up, don't do anything. */ 341 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 342 break; 343 344 /* Try to power up the PHY in case it's down */ 345 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 346 makphy_pdown(sc, MAKARG_PUP); 347 348 mii_phy_setmedia(sc); 349 350 /* 351 * If autonegitation is not enabled, we need a 352 * software reset for the settings to take effect. 353 */ 354 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 355 makphy_pdown(sc, MAKARG_PDOWN); 356 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 357 PHY_READ(sc, MII_BMCR, &bmcr); 358 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 359 } 360 break; 361 362 case MII_TICK: 363 /* If we're not currently selected, just return. */ 364 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 365 return 0; 366 367 if (mii_phy_tick(sc) == EJUSTRETURN) 368 return 0; 369 break; 370 371 case MII_DOWN: 372 mii_phy_down(sc); 373 return 0; 374 } 375 376 /* Update the media status. */ 377 mii_phy_status(sc); 378 379 /* Callback if something changed. */ 380 mii_phy_update(sc, cmd); 381 return 0; 382 } 383 384 static void 385 makphy_status(struct mii_softc *sc) 386 { 387 struct mii_data *mii = sc->mii_pdata; 388 uint16_t bmcr, gsr, pssr; 389 390 mii->mii_media_status = IFM_AVALID; 391 mii->mii_media_active = IFM_ETHER; 392 393 PHY_READ(sc, MII_BMCR, &bmcr); 394 /* XXX FIXME: Use different page for Fiber on newer chips */ 395 PHY_READ(sc, MAKPHY_PSSR, &pssr); 396 397 if (pssr & PSSR_LINK) 398 mii->mii_media_status |= IFM_ACTIVE; 399 400 if (bmcr & BMCR_LOOP) 401 mii->mii_media_active |= IFM_LOOP; 402 403 if (bmcr & BMCR_ISO) { 404 mii->mii_media_active |= IFM_NONE; 405 mii->mii_media_status = 0; 406 return; 407 } 408 409 if ((bmcr & BMCR_AUTOEN) != 0) { 410 /* 411 * Check Speed and Duplex Resolved bit. 412 * Note that this bit is always 1 when autonego is not enabled. 413 */ 414 if (!(pssr & PSSR_RESOLVED)) { 415 /* Erg, still trying, I guess... */ 416 mii->mii_media_active |= IFM_NONE; 417 return; 418 } 419 } else { 420 if ((pssr & PSSR_LINK) == 0) { 421 mii->mii_media_active |= IFM_NONE; 422 return; 423 } 424 } 425 426 /* XXX FIXME: Use different page for Fiber on newer chips */ 427 if (sc->mii_flags & MIIF_IS_1000X) { 428 mii->mii_media_active |= IFM_1000_SX; 429 } else { 430 switch (PSSR_SPEED_get(pssr)) { 431 case SPEED_1000: 432 mii->mii_media_active |= IFM_1000_T; 433 break; 434 case SPEED_100: 435 mii->mii_media_active |= IFM_100_TX; 436 break; 437 case SPEED_10: 438 mii->mii_media_active |= IFM_10_T; 439 break; 440 default: /* Undefined (reserved) value */ 441 mii->mii_media_active |= IFM_NONE; 442 mii->mii_media_status = 0; 443 return; 444 } 445 } 446 447 if (pssr & PSSR_DUPLEX) 448 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 449 else 450 mii->mii_media_active |= IFM_HDX; 451 452 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 453 PHY_READ(sc, MII_100T2SR, &gsr); 454 if (gsr & GTSR_MS_RES) 455 mii->mii_media_active |= IFM_ETH_MASTER; 456 } 457 } 458
Indexes created Fri Sep 26 20:09:58 GMT 2025