makphy.c revision 1.62
1 /* $NetBSD: makphy.c,v 1.62 2019/11/27 10:19:20 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 1.62 2019/11/27 10:19:20 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; 183 184 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 switch (model) { 204 case MII_MODEL_xxMARVELL_E1011: 205 case MII_MODEL_xxMARVELL_E1112: 206 if (PHY_READ(sc, MAKPHY_ESSR, ®) != 0) { 207 aprint_verbose_dev(self, 208 "Failed to read MAKPHY_ESSR\n"); 209 break; 210 } 211 if (reg & ESSR_FIBER_LINK) 212 sc->mii_flags |= MIIF_HAVEFIBER; 213 break; 214 default: 215 break; 216 } 217 218 PHY_RESET(sc); 219 220 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 221 sc->mii_capabilities &= ma->mii_capmask; 222 if (sc->mii_capabilities & BMSR_EXTSTAT) 223 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 224 225 mii_phy_add_media(sc); 226 } 227 228 static void 229 makphy_reset(struct mii_softc *sc) 230 { 231 struct makphy_softc *maksc = (struct makphy_softc *)sc; 232 uint16_t reg; 233 234 mii_phy_reset(sc); 235 236 /* Initialize PHY Specific Control Register. */ 237 PHY_READ(sc, MAKPHY_PSCR, ®); 238 239 /* Assert CRS on transmit. */ 240 switch (sc->mii_mpd_model) { 241 case MII_MODEL_MARVELL_E1000_0: 242 if ((maksc->sc_flags & MAKPHY_F_I210) != 0) 243 break; 244 /* FALLTHROUGH */ 245 case MII_MODEL_MARVELL_E1000_3: 246 case MII_MODEL_MARVELL_E1000_5: 247 case MII_MODEL_MARVELL_E1000_6: 248 case MII_MODEL_xxMARVELL_E1000S: 249 case MII_MODEL_xxMARVELL_E1011: 250 case MII_MODEL_xxMARVELL_E1111: 251 reg |= PSCR_CRS_ON_TX; 252 break; 253 default: /* No PSCR_CRS_ON_TX bit */ 254 break; 255 } 256 257 /* Enable scrambler if necessary. */ 258 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 259 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 260 261 /* 262 * Store next page in the Link Partner Next Page register for 263 * compatibility with 802.3ab. 264 */ 265 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 266 reg |= E3016_PSCR_REG8NXTPG; 267 268 PHY_WRITE(sc, MAKPHY_PSCR, reg); 269 270 /* Configure LEDs if they were left unconfigured. */ 271 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 272 PHY_READ(sc, 0x16, ®); 273 if (reg == 0) { 274 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 275 PHY_WRITE(sc, 0x16, reg); 276 } 277 } 278 279 mii_phy_reset(sc); 280 } 281 282 static void 283 makphy_pdown(struct mii_softc *sc, bool pdown) 284 { 285 uint16_t bmcr, new; 286 bool need_reset = false; 287 288 /* 289 * XXX 290 * PSCR (register 16) should be modified on some chips. 291 */ 292 293 PHY_READ(sc, MII_BMCR, &bmcr); 294 if (pdown) 295 new = bmcr | BMCR_PDOWN; 296 else 297 new = bmcr & ~BMCR_PDOWN; 298 if (bmcr != new) 299 need_reset = true; 300 301 if (need_reset) 302 new |= BMCR_RESET; 303 PHY_WRITE(sc, MII_BMCR, new); 304 } 305 306 static int 307 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 308 { 309 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 310 uint16_t bmcr; 311 312 if (!device_is_active(sc->mii_dev)) 313 return ENXIO; 314 315 switch (cmd) { 316 case MII_POLLSTAT: 317 /* If we're not polling our PHY instance, just return. */ 318 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 319 return 0; 320 break; 321 322 case MII_MEDIACHG: 323 /* 324 * If the media indicates a different PHY instance, 325 * isolate ourselves. 326 */ 327 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 328 PHY_READ(sc, MII_BMCR, &bmcr); 329 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 330 return 0; 331 } 332 333 /* If the interface is not up, don't do anything. */ 334 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 335 break; 336 337 /* Try to power up the PHY in case it's down */ 338 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 339 makphy_pdown(sc, MAKARG_PUP); 340 341 mii_phy_setmedia(sc); 342 343 /* 344 * If autonegitation is not enabled, we need a 345 * software reset for the settings to take effect. 346 */ 347 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 348 makphy_pdown(sc, MAKARG_PDOWN); 349 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 350 PHY_READ(sc, MII_BMCR, &bmcr); 351 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 352 } 353 break; 354 355 case MII_TICK: 356 /* If we're not currently selected, just return. */ 357 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 358 return 0; 359 360 if (mii_phy_tick(sc) == EJUSTRETURN) 361 return 0; 362 break; 363 364 case MII_DOWN: 365 mii_phy_down(sc); 366 return 0; 367 } 368 369 /* Update the media status. */ 370 mii_phy_status(sc); 371 372 /* Callback if something changed. */ 373 mii_phy_update(sc, cmd); 374 return 0; 375 } 376 377 static void 378 makphy_status(struct mii_softc *sc) 379 { 380 struct mii_data *mii = sc->mii_pdata; 381 uint16_t bmcr, gsr, pssr; 382 383 mii->mii_media_status = IFM_AVALID; 384 mii->mii_media_active = IFM_ETHER; 385 386 PHY_READ(sc, MII_BMCR, &bmcr); 387 /* XXX FIXME: Use different page for Fiber on newer chips */ 388 PHY_READ(sc, MAKPHY_PSSR, &pssr); 389 390 if (pssr & PSSR_LINK) 391 mii->mii_media_status |= IFM_ACTIVE; 392 393 if (bmcr & BMCR_LOOP) 394 mii->mii_media_active |= IFM_LOOP; 395 396 if (bmcr & BMCR_ISO) { 397 mii->mii_media_active |= IFM_NONE; 398 mii->mii_media_status = 0; 399 return; 400 } 401 402 if ((bmcr & BMCR_AUTOEN) != 0) { 403 /* 404 * Check Speed and Duplex Resolved bit. 405 * Note that this bit is always 1 when autonego is not enabled. 406 */ 407 if (!(pssr & PSSR_RESOLVED)) { 408 /* Erg, still trying, I guess... */ 409 mii->mii_media_active |= IFM_NONE; 410 return; 411 } 412 } else { 413 if ((pssr & PSSR_LINK) == 0) { 414 mii->mii_media_active |= IFM_NONE; 415 return; 416 } 417 } 418 419 /* XXX FIXME: Use different page for Fiber on newer chips */ 420 if (sc->mii_flags & MIIF_IS_1000X) { 421 mii->mii_media_active |= IFM_1000_SX; 422 } else { 423 switch (PSSR_SPEED_get(pssr)) { 424 case SPEED_1000: 425 mii->mii_media_active |= IFM_1000_T; 426 break; 427 case SPEED_100: 428 mii->mii_media_active |= IFM_100_TX; 429 break; 430 case SPEED_10: 431 mii->mii_media_active |= IFM_10_T; 432 break; 433 default: /* Undefined (reserved) value */ 434 mii->mii_media_active |= IFM_NONE; 435 mii->mii_media_status = 0; 436 return; 437 } 438 } 439 440 if (pssr & PSSR_DUPLEX) 441 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 442 else 443 mii->mii_media_active |= IFM_HDX; 444 445 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 446 PHY_READ(sc, MII_100T2SR, &gsr); 447 if (gsr & GTSR_MS_RES) 448 mii->mii_media_active |= IFM_ETH_MASTER; 449 } 450 } 451
Indexes created Tue Sep 23 23:09:58 GMT 2025