makphy.c revision 1.53
1 /* $NetBSD: makphy.c,v 1.53 2019/02/08 09:17:12 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 1.53 2019/02/08 09:17:12 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 80 static int makphymatch(device_t, cfdata_t, void *); 81 static void makphyattach(device_t, device_t, void *); 82 83 CFATTACH_DECL_NEW(makphy, sizeof(struct mii_softc), 84 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); 85 86 static int makphy_service(struct mii_softc *, struct mii_data *, int); 87 static void makphy_status(struct mii_softc *); 88 static void makphy_reset(struct mii_softc *); 89 90 static const struct mii_phy_funcs makphy_funcs = { 91 makphy_service, makphy_status, makphy_reset, 92 }; 93 94 static const struct mii_phydesc makphys[] = { 95 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_0, 96 MII_STR_MARVELL_E1000_0 }, 97 98 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_3, 99 MII_STR_MARVELL_E1000_3 }, 100 101 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_5, 102 MII_STR_MARVELL_E1000_5 }, 103 104 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_6, 105 MII_STR_MARVELL_E1000_6 }, 106 107 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 108 MII_STR_xxMARVELL_E1000_3 }, 109 110 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 111 MII_STR_xxMARVELL_E1000_5 }, 112 113 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000S, 114 MII_STR_xxMARVELL_E1000S }, 115 116 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 117 MII_STR_xxMARVELL_E1011 }, 118 119 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 120 MII_STR_xxMARVELL_E1111 }, 121 122 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1112, 123 MII_STR_xxMARVELL_E1112 }, 124 125 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 126 MII_STR_xxMARVELL_E1116 }, 127 128 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R, 129 MII_STR_xxMARVELL_E1116R }, 130 131 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1318S, 132 MII_STR_xxMARVELL_E1318S }, 133 134 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1118, 135 MII_STR_xxMARVELL_E1118 }, 136 137 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, 138 MII_STR_xxMARVELL_E1145 }, 139 140 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149, 141 MII_STR_xxMARVELL_E1149 }, 142 143 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149R, 144 MII_STR_xxMARVELL_E1149R }, 145 146 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1240, 147 MII_STR_xxMARVELL_E1240 }, 148 149 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1512, 150 MII_STR_xxMARVELL_E1512 }, 151 152 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1543, 153 MII_STR_xxMARVELL_E1543 }, 154 155 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3016, 156 MII_STR_xxMARVELL_E3016 }, 157 158 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3082, 159 MII_STR_xxMARVELL_E3082 }, 160 161 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_PHYG65G, 162 MII_STR_xxMARVELL_PHYG65G }, 163 164 { 0, 0, 165 NULL }, 166 }; 167 168 #define MAKARG_PDOWN true /* Power DOWN */ 169 #define MAKARG_PUP false /* Power UP */ 170 171 static int 172 makphymatch(device_t parent, cfdata_t match, void *aux) 173 { 174 struct mii_attach_args *ma = aux; 175 176 if (mii_phy_match(ma, makphys) != NULL) 177 return (10); 178 179 return (0); 180 } 181 182 static void 183 makphyattach(device_t parent, device_t self, void *aux) 184 { 185 struct mii_softc *sc = device_private(self); 186 struct mii_attach_args *ma = aux; 187 struct mii_data *mii = ma->mii_data; 188 const struct mii_phydesc *mpd; 189 uint16_t reg; 190 191 mpd = mii_phy_match(ma, makphys); 192 aprint_naive(": Media interface\n"); 193 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 194 195 sc->mii_dev = self; 196 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 197 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 198 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 199 sc->mii_inst = mii->mii_instance; 200 sc->mii_phy = ma->mii_phyno; 201 sc->mii_funcs = &makphy_funcs; 202 sc->mii_pdata = mii; 203 sc->mii_flags = ma->mii_flags; 204 sc->mii_anegticks = MII_ANEGTICKS; 205 206 /* Make sure page 0 is selected. */ 207 PHY_WRITE(sc, MAKPHY_EADR, 0); 208 209 switch (sc->mii_mpd_model) { 210 case MII_MODEL_xxMARVELL_E1011: 211 case MII_MODEL_xxMARVELL_E1112: 212 PHY_READ(sc, MAKPHY_ESSR, ®); 213 if (reg & ESSR_FIBER_LINK) 214 sc->mii_flags |= MIIF_HAVEFIBER; 215 break; 216 default: 217 break; 218 } 219 220 PHY_RESET(sc); 221 222 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 223 sc->mii_capabilities &= ma->mii_capmask; 224 if (sc->mii_capabilities & BMSR_EXTSTAT) 225 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 226 227 aprint_normal_dev(self, ""); 228 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 229 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 230 aprint_error("no media present"); 231 else 232 mii_phy_add_media(sc); 233 aprint_normal("\n"); 234 } 235 236 static void 237 makphy_reset(struct mii_softc *sc) 238 { 239 uint16_t reg; 240 241 mii_phy_reset(sc); 242 243 /* 244 * Initialize PHY Specific Control Register. 245 */ 246 PHY_READ(sc, MAKPHY_PSCR, ®); 247 248 /* Assert CRS on transmit. */ 249 switch (sc->mii_mpd_model) { 250 case MII_MODEL_MARVELL_E1000_0: 251 case MII_MODEL_MARVELL_E1000_3: 252 case MII_MODEL_MARVELL_E1000_5: 253 case MII_MODEL_MARVELL_E1000_6: 254 case MII_MODEL_xxMARVELL_E1000S: 255 case MII_MODEL_xxMARVELL_E1011: 256 case MII_MODEL_xxMARVELL_E1111: 257 reg |= PSCR_CRS_ON_TX; 258 break; 259 default: /* No PSCR_CRS_ON_TX bit */ 260 break; 261 } 262 263 /* Enable scrambler if necessary. */ 264 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 265 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 266 267 /* 268 * Store next page in the Link Partner Next Page register for 269 * compatibility with 802.3ab. 270 */ 271 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 272 reg |= E3016_PSCR_REG8NXTPG; 273 274 PHY_WRITE(sc, MAKPHY_PSCR, reg); 275 276 /* Configure LEDs if they were left unconfigured. */ 277 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 278 PHY_READ(sc, 0x16, ®); 279 if (reg == 0) { 280 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 281 PHY_WRITE(sc, 0x16, reg); 282 } 283 } 284 285 mii_phy_reset(sc); 286 } 287 288 static void 289 makphy_pdown(struct mii_softc *sc, bool pdown) 290 { 291 uint16_t bmcr, new; 292 bool need_reset = false; 293 294 /* 295 * XXX 296 * PSCR (register 16) should be modified on some chips. 297 */ 298 299 PHY_READ(sc, MII_BMCR, &bmcr); 300 if (pdown) 301 new = bmcr | BMCR_PDOWN; 302 else 303 new = bmcr & ~BMCR_PDOWN; 304 if (bmcr != new) 305 need_reset = true; 306 307 if (need_reset) 308 new |= BMCR_RESET; 309 PHY_WRITE(sc, MII_BMCR, new); 310 } 311 312 static int 313 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 314 { 315 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 316 uint16_t bmcr; 317 318 if (!device_is_active(sc->mii_dev)) 319 return (ENXIO); 320 321 switch (cmd) { 322 case MII_POLLSTAT: 323 /* 324 * If we're not polling our PHY instance, just return. 325 */ 326 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 327 return (0); 328 break; 329 330 case MII_MEDIACHG: 331 /* 332 * If the media indicates a different PHY instance, 333 * isolate ourselves. 334 */ 335 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 336 PHY_READ(sc, MII_BMCR, &bmcr); 337 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 338 return (0); 339 } 340 341 /* 342 * If the interface is not up, don't do anything. 343 */ 344 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 345 break; 346 347 /* Try to power up the PHY in case it's down */ 348 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 349 makphy_pdown(sc, MAKARG_PUP); 350 351 mii_phy_setmedia(sc); 352 353 /* 354 * If autonegitation is not enabled, we need a 355 * software reset for the settings to take effect. 356 */ 357 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 358 makphy_pdown(sc, MAKARG_PDOWN); 359 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 360 PHY_READ(sc, MII_BMCR, &bmcr); 361 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 362 } 363 break; 364 365 case MII_TICK: 366 /* 367 * If we're not currently selected, just return. 368 */ 369 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 370 return (0); 371 372 if (mii_phy_tick(sc) == EJUSTRETURN) 373 return (0); 374 break; 375 376 case MII_DOWN: 377 mii_phy_down(sc); 378 return (0); 379 } 380 381 /* Update the media status. */ 382 mii_phy_status(sc); 383 384 /* Callback if something changed. */ 385 mii_phy_update(sc, cmd); 386 return (0); 387 } 388 389 static void 390 makphy_status(struct mii_softc *sc) 391 { 392 struct mii_data *mii = sc->mii_pdata; 393 uint16_t bmcr, gsr, pssr; 394 395 mii->mii_media_status = IFM_AVALID; 396 mii->mii_media_active = IFM_ETHER; 397 398 PHY_READ(sc, MII_BMCR, &bmcr); 399 /* XXX FIXME: Use different page for Fiber on newer chips */ 400 PHY_READ(sc, MAKPHY_PSSR, &pssr); 401 402 if (pssr & PSSR_LINK) 403 mii->mii_media_status |= IFM_ACTIVE; 404 405 if (bmcr & BMCR_LOOP) 406 mii->mii_media_active |= IFM_LOOP; 407 408 if (bmcr & BMCR_ISO) { 409 mii->mii_media_active |= IFM_NONE; 410 mii->mii_media_status = 0; 411 return; 412 } 413 414 if ((bmcr & BMCR_AUTOEN) != 0) { 415 /* 416 * Check Speed and Duplex Resolved bit. 417 * Note that this bit is always 1 when autonego is not enabled. 418 */ 419 if (!(pssr & PSSR_RESOLVED)) { 420 /* Erg, still trying, I guess... */ 421 mii->mii_media_active |= IFM_NONE; 422 return; 423 } 424 } else { 425 if ((pssr & PSSR_LINK) == 0) { 426 mii->mii_media_active |= IFM_NONE; 427 return; 428 } 429 } 430 431 /* XXX FIXME: Use different page for Fiber on newer chips */ 432 if (sc->mii_flags & MIIF_IS_1000X) { 433 mii->mii_media_active |= IFM_1000_SX; 434 } else { 435 switch (PSSR_SPEED_get(pssr)) { 436 case SPEED_1000: 437 mii->mii_media_active |= IFM_1000_T; 438 break; 439 case SPEED_100: 440 mii->mii_media_active |= IFM_100_TX; 441 break; 442 case SPEED_10: 443 mii->mii_media_active |= IFM_10_T; 444 break; 445 default: /* Undefined (reserved) value */ 446 mii->mii_media_active |= IFM_NONE; 447 mii->mii_media_status = 0; 448 return; 449 } 450 } 451 452 if (pssr & PSSR_DUPLEX) 453 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 454 else 455 mii->mii_media_active |= IFM_HDX; 456 457 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 458 PHY_READ(sc, MII_100T2SR, &gsr); 459 if (gsr & GTSR_MS_RES) 460 mii->mii_media_active |= IFM_ETH_MASTER; 461 } 462 } 463
Indexes created Fri Sep 26 08:10:20 GMT 2025