makphy.c revision 1.52
1 /* $NetBSD: makphy.c,v 1.52 2019/01/22 03:42:27 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 1.52 2019/01/22 03:42:27 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_E1116R_29, 132 MII_STR_xxMARVELL_E1116R_29 }, 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_E1512, 147 MII_STR_xxMARVELL_E1512 }, 148 149 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1543, 150 MII_STR_xxMARVELL_E1543 }, 151 152 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3016, 153 MII_STR_xxMARVELL_E3016 }, 154 155 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3082, 156 MII_STR_xxMARVELL_E3082 }, 157 158 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_PHYG65G, 159 MII_STR_xxMARVELL_PHYG65G }, 160 161 { 0, 0, 162 NULL }, 163 }; 164 165 #define MAKARG_PDOWN true /* Power DOWN */ 166 #define MAKARG_PUP false /* Power UP */ 167 168 static int 169 makphymatch(device_t parent, cfdata_t match, void *aux) 170 { 171 struct mii_attach_args *ma = aux; 172 173 if (mii_phy_match(ma, makphys) != NULL) 174 return (10); 175 176 return (0); 177 } 178 179 static void 180 makphyattach(device_t parent, device_t self, void *aux) 181 { 182 struct mii_softc *sc = device_private(self); 183 struct mii_attach_args *ma = aux; 184 struct mii_data *mii = ma->mii_data; 185 const struct mii_phydesc *mpd; 186 uint16_t reg; 187 188 mpd = mii_phy_match(ma, makphys); 189 aprint_naive(": Media interface\n"); 190 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 191 192 sc->mii_dev = self; 193 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 194 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 195 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 196 sc->mii_inst = mii->mii_instance; 197 sc->mii_phy = ma->mii_phyno; 198 sc->mii_funcs = &makphy_funcs; 199 sc->mii_pdata = mii; 200 sc->mii_flags = ma->mii_flags; 201 sc->mii_anegticks = MII_ANEGTICKS; 202 203 /* Make sure page 0 is selected. */ 204 PHY_WRITE(sc, MAKPHY_EADR, 0); 205 206 switch (sc->mii_mpd_model) { 207 case MII_MODEL_xxMARVELL_E1011: 208 case MII_MODEL_xxMARVELL_E1112: 209 PHY_READ(sc, MAKPHY_ESSR, ®); 210 if (reg & ESSR_FIBER_LINK) 211 sc->mii_flags |= MIIF_HAVEFIBER; 212 break; 213 default: 214 break; 215 } 216 217 PHY_RESET(sc); 218 219 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 220 sc->mii_capabilities &= ma->mii_capmask; 221 if (sc->mii_capabilities & BMSR_EXTSTAT) 222 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 223 224 aprint_normal_dev(self, ""); 225 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 226 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 227 aprint_error("no media present"); 228 else 229 mii_phy_add_media(sc); 230 aprint_normal("\n"); 231 } 232 233 static void 234 makphy_reset(struct mii_softc *sc) 235 { 236 uint16_t reg; 237 238 mii_phy_reset(sc); 239 240 /* 241 * Initialize PHY Specific Control Register. 242 */ 243 PHY_READ(sc, MAKPHY_PSCR, ®); 244 245 /* Assert CRS on transmit. */ 246 switch (sc->mii_mpd_model) { 247 case MII_MODEL_MARVELL_E1000_0: 248 case MII_MODEL_MARVELL_E1000_3: 249 case MII_MODEL_MARVELL_E1000_5: 250 case MII_MODEL_MARVELL_E1000_6: 251 case MII_MODEL_xxMARVELL_E1000S: 252 case MII_MODEL_xxMARVELL_E1011: 253 case MII_MODEL_xxMARVELL_E1111: 254 reg |= PSCR_CRS_ON_TX; 255 break; 256 default: /* No PSCR_CRS_ON_TX bit */ 257 break; 258 } 259 260 /* Enable scrambler if necessary. */ 261 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 262 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 263 264 /* 265 * Store next page in the Link Partner Next Page register for 266 * compatibility with 802.3ab. 267 */ 268 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 269 reg |= E3016_PSCR_REG8NXTPG; 270 271 PHY_WRITE(sc, MAKPHY_PSCR, reg); 272 273 /* Configure LEDs if they were left unconfigured. */ 274 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 275 PHY_READ(sc, 0x16, ®); 276 if (reg == 0) { 277 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 278 PHY_WRITE(sc, 0x16, reg); 279 } 280 } 281 282 mii_phy_reset(sc); 283 } 284 285 static void 286 makphy_pdown(struct mii_softc *sc, bool pdown) 287 { 288 uint16_t bmcr, new; 289 bool need_reset = false; 290 291 /* 292 * XXX 293 * PSCR (register 16) should be modified on some chips. 294 */ 295 296 PHY_READ(sc, MII_BMCR, &bmcr); 297 if (pdown) 298 new = bmcr | BMCR_PDOWN; 299 else 300 new = bmcr & ~BMCR_PDOWN; 301 if (bmcr != new) 302 need_reset = true; 303 304 if (need_reset) 305 new |= BMCR_RESET; 306 PHY_WRITE(sc, MII_BMCR, new); 307 } 308 309 static int 310 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 311 { 312 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 313 uint16_t bmcr; 314 315 if (!device_is_active(sc->mii_dev)) 316 return (ENXIO); 317 318 switch (cmd) { 319 case MII_POLLSTAT: 320 /* 321 * If we're not polling our PHY instance, just return. 322 */ 323 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 324 return (0); 325 break; 326 327 case MII_MEDIACHG: 328 /* 329 * If the media indicates a different PHY instance, 330 * isolate ourselves. 331 */ 332 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 333 PHY_READ(sc, MII_BMCR, &bmcr); 334 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 335 return (0); 336 } 337 338 /* 339 * If the interface is not up, don't do anything. 340 */ 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 /* 364 * If we're not currently selected, just return. 365 */ 366 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 367 return (0); 368 369 if (mii_phy_tick(sc) == EJUSTRETURN) 370 return (0); 371 break; 372 373 case MII_DOWN: 374 mii_phy_down(sc); 375 return (0); 376 } 377 378 /* Update the media status. */ 379 mii_phy_status(sc); 380 381 /* Callback if something changed. */ 382 mii_phy_update(sc, cmd); 383 return (0); 384 } 385 386 static void 387 makphy_status(struct mii_softc *sc) 388 { 389 struct mii_data *mii = sc->mii_pdata; 390 uint16_t bmcr, gsr, pssr; 391 392 mii->mii_media_status = IFM_AVALID; 393 mii->mii_media_active = IFM_ETHER; 394 395 PHY_READ(sc, MII_BMCR, &bmcr); 396 /* XXX FIXME: Use different page for Fiber on newer chips */ 397 PHY_READ(sc, MAKPHY_PSSR, &pssr); 398 399 if (pssr & PSSR_LINK) 400 mii->mii_media_status |= IFM_ACTIVE; 401 402 if (bmcr & BMCR_LOOP) 403 mii->mii_media_active |= IFM_LOOP; 404 405 if (bmcr & BMCR_ISO) { 406 mii->mii_media_active |= IFM_NONE; 407 mii->mii_media_status = 0; 408 return; 409 } 410 411 if ((bmcr & BMCR_AUTOEN) != 0) { 412 /* 413 * Check Speed and Duplex Resolved bit. 414 * Note that this bit is always 1 when autonego is not enabled. 415 */ 416 if (!(pssr & PSSR_RESOLVED)) { 417 /* Erg, still trying, I guess... */ 418 mii->mii_media_active |= IFM_NONE; 419 return; 420 } 421 } else { 422 if ((pssr & PSSR_LINK) == 0) { 423 mii->mii_media_active |= IFM_NONE; 424 return; 425 } 426 } 427 428 /* XXX FIXME: Use different page for Fiber on newer chips */ 429 if (sc->mii_flags & MIIF_IS_1000X) { 430 mii->mii_media_active |= IFM_1000_SX; 431 } else { 432 switch (PSSR_SPEED_get(pssr)) { 433 case SPEED_1000: 434 mii->mii_media_active |= IFM_1000_T; 435 break; 436 case SPEED_100: 437 mii->mii_media_active |= IFM_100_TX; 438 break; 439 case SPEED_10: 440 mii->mii_media_active |= IFM_10_T; 441 break; 442 default: /* Undefined (reserved) value */ 443 mii->mii_media_active |= IFM_NONE; 444 mii->mii_media_status = 0; 445 return; 446 } 447 } 448 449 if (pssr & PSSR_DUPLEX) 450 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 451 else 452 mii->mii_media_active |= IFM_HDX; 453 454 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 455 PHY_READ(sc, MII_100T2SR, &gsr); 456 if (gsr & GTSR_MS_RES) 457 mii->mii_media_active |= IFM_ETH_MASTER; 458 } 459 } 460
Indexes created Wed Sep 24 05:09:52 GMT 2025