makphy.c revision 1.49
1 /* $NetBSD: makphy.c,v 1.49 2019/01/08 03:14:51 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 #include <sys/cdefs.h> 58 __KERNEL_RCSID(0, "$NetBSD: makphy.c,v 1.49 2019/01/08 03:14:51 msaitoh Exp $"); 59 60 #include <sys/param.h> 61 #include <sys/systm.h> 62 #include <sys/kernel.h> 63 #include <sys/device.h> 64 #include <sys/socket.h> 65 #include <sys/errno.h> 66 67 #include <net/if.h> 68 #include <net/if_media.h> 69 70 #include <dev/mii/mii.h> 71 #include <dev/mii/miivar.h> 72 #include <dev/mii/miidevs.h> 73 74 #include <dev/mii/makphyreg.h> 75 76 static int makphymatch(device_t, cfdata_t, void *); 77 static void makphyattach(device_t, device_t, void *); 78 79 CFATTACH_DECL_NEW(makphy, sizeof(struct mii_softc), 80 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); 81 82 static int makphy_service(struct mii_softc *, struct mii_data *, int); 83 static void makphy_status(struct mii_softc *); 84 static void makphy_reset(struct mii_softc *); 85 86 static const struct mii_phy_funcs makphy_funcs = { 87 makphy_service, makphy_status, makphy_reset, 88 }; 89 90 static const struct mii_phydesc makphys[] = { 91 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_0, 92 MII_STR_MARVELL_E1000_0 }, 93 94 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_3, 95 MII_STR_MARVELL_E1000_3 }, 96 97 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_5, 98 MII_STR_MARVELL_E1000_5 }, 99 100 { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_6, 101 MII_STR_MARVELL_E1000_6 }, 102 103 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 104 MII_STR_xxMARVELL_E1000_3 }, 105 106 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 107 MII_STR_xxMARVELL_E1000_5 }, 108 109 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000S, 110 MII_STR_xxMARVELL_E1000S }, 111 112 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 113 MII_STR_xxMARVELL_E1011 }, 114 115 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 116 MII_STR_xxMARVELL_E1111 }, 117 118 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1112, 119 MII_STR_xxMARVELL_E1112 }, 120 121 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 122 MII_STR_xxMARVELL_E1116 }, 123 124 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R, 125 MII_STR_xxMARVELL_E1116R }, 126 127 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R_29, 128 MII_STR_xxMARVELL_E1116R_29 }, 129 130 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1118, 131 MII_STR_xxMARVELL_E1118 }, 132 133 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, 134 MII_STR_xxMARVELL_E1145 }, 135 136 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149, 137 MII_STR_xxMARVELL_E1149 }, 138 139 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149R, 140 MII_STR_xxMARVELL_E1149R }, 141 142 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1512, 143 MII_STR_xxMARVELL_E1512 }, 144 145 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1543, 146 MII_STR_xxMARVELL_E1543 }, 147 148 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3016, 149 MII_STR_xxMARVELL_E3016 }, 150 151 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3082, 152 MII_STR_xxMARVELL_E3082 }, 153 154 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_PHYG65G, 155 MII_STR_xxMARVELL_PHYG65G }, 156 157 { 0, 0, 158 NULL }, 159 }; 160 161 #define MAKARG_PDOWN true /* Power DOWN */ 162 #define MAKARG_PUP false /* Power UP */ 163 164 static int 165 makphymatch(device_t parent, cfdata_t match, void *aux) 166 { 167 struct mii_attach_args *ma = aux; 168 169 if (mii_phy_match(ma, makphys) != NULL) 170 return (10); 171 172 return (0); 173 } 174 175 static void 176 makphyattach(device_t parent, device_t self, void *aux) 177 { 178 struct mii_softc *sc = device_private(self); 179 struct mii_attach_args *ma = aux; 180 struct mii_data *mii = ma->mii_data; 181 const struct mii_phydesc *mpd; 182 183 mpd = mii_phy_match(ma, makphys); 184 aprint_naive(": Media interface\n"); 185 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 186 187 sc->mii_dev = self; 188 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 189 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 190 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 191 sc->mii_inst = mii->mii_instance; 192 sc->mii_phy = ma->mii_phyno; 193 sc->mii_funcs = &makphy_funcs; 194 sc->mii_pdata = mii; 195 sc->mii_flags = ma->mii_flags; 196 sc->mii_anegticks = MII_ANEGTICKS; 197 198 /* Make sure page 0 is selected. */ 199 PHY_WRITE(sc, MAKPHY_EADR, 0); 200 201 switch (sc->mii_mpd_model) { 202 case MII_MODEL_xxMARVELL_E1011: 203 case MII_MODEL_xxMARVELL_E1112: 204 if (PHY_READ(sc, MAKPHY_ESSR) & ESSR_FIBER_LINK) 205 sc->mii_flags |= MIIF_HAVEFIBER; 206 break; 207 default: 208 break; 209 } 210 211 PHY_RESET(sc); 212 213 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 214 if (sc->mii_capabilities & BMSR_EXTSTAT) 215 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 216 217 aprint_normal_dev(self, ""); 218 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 219 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 220 aprint_error("no media present"); 221 else 222 mii_phy_add_media(sc); 223 aprint_normal("\n"); 224 } 225 226 static void 227 makphy_reset(struct mii_softc *sc) 228 { 229 int reg; 230 231 mii_phy_reset(sc); 232 233 /* 234 * Initialize PHY Specific Control Register. 235 */ 236 reg = PHY_READ(sc, MAKPHY_PSCR); 237 238 /* Assert CRS on transmit. */ 239 switch (sc->mii_mpd_model) { 240 case MII_MODEL_MARVELL_E1000_0: 241 case MII_MODEL_MARVELL_E1000_3: 242 case MII_MODEL_MARVELL_E1000_5: 243 case MII_MODEL_MARVELL_E1000_6: 244 case MII_MODEL_xxMARVELL_E1000S: 245 case MII_MODEL_xxMARVELL_E1011: 246 case MII_MODEL_xxMARVELL_E1111: 247 reg |= PSCR_CRS_ON_TX; 248 break; 249 default: /* No PSCR_CRS_ON_TX bit */ 250 break; 251 } 252 253 /* Enable scrambler if necessary. */ 254 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 255 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 256 257 /* 258 * Store next page in the Link Partner Next Page register for 259 * compatibility with 802.3ab. 260 */ 261 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 262 reg |= E3016_PSCR_REG8NXTPG; 263 264 PHY_WRITE(sc, MAKPHY_PSCR, reg); 265 266 /* Configure LEDs if they were left unconfigured. */ 267 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016 && 268 PHY_READ(sc, 0x16) == 0) { 269 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 270 PHY_WRITE(sc, 0x16, reg); 271 } 272 273 mii_phy_reset(sc); 274 } 275 276 static void 277 makphy_pdown(struct mii_softc *sc, bool pdown) 278 { 279 int bmcr, new; 280 bool need_reset = false; 281 282 /* 283 * XXX 284 * PSCR (register 16) should be modified on some chips. 285 */ 286 287 bmcr = PHY_READ(sc, MII_BMCR); 288 if (pdown) 289 new = bmcr | BMCR_PDOWN; 290 else 291 new = bmcr & ~BMCR_PDOWN; 292 if (bmcr != new) 293 need_reset = true; 294 295 if (need_reset) 296 new |= BMCR_RESET; 297 PHY_WRITE(sc, MII_BMCR, new); 298 } 299 300 static int 301 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 302 { 303 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 304 int bmcr; 305 306 if (!device_is_active(sc->mii_dev)) 307 return (ENXIO); 308 309 switch (cmd) { 310 case MII_POLLSTAT: 311 /* 312 * If we're not polling our PHY instance, just return. 313 */ 314 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 315 return (0); 316 break; 317 318 case MII_MEDIACHG: 319 /* 320 * If the media indicates a different PHY instance, 321 * isolate ourselves. 322 */ 323 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 324 bmcr = PHY_READ(sc, MII_BMCR); 325 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 326 return (0); 327 } 328 329 /* 330 * If the interface is not up, don't do anything. 331 */ 332 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 333 break; 334 335 /* Try to power up the PHY in case it's down */ 336 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 337 makphy_pdown(sc, MAKARG_PUP); 338 339 mii_phy_setmedia(sc); 340 341 /* 342 * If autonegitation is not enabled, we need a 343 * software reset for the settings to take effect. 344 */ 345 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 346 makphy_pdown(sc, MAKARG_PDOWN); 347 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 348 bmcr = PHY_READ(sc, MII_BMCR); 349 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 350 } 351 break; 352 353 case MII_TICK: 354 /* 355 * If we're not currently selected, just return. 356 */ 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 int bmcr, gsr, pssr; 382 383 mii->mii_media_status = IFM_AVALID; 384 mii->mii_media_active = IFM_ETHER; 385 386 bmcr = PHY_READ(sc, MII_BMCR); 387 /* XXX FIXME: Use different page for Fiber on newer chips */ 388 pssr = PHY_READ(sc, MAKPHY_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 gsr = PHY_READ(sc, MII_100T2SR); 447 if (gsr & GTSR_MS_RES) 448 mii->mii_media_active |= IFM_ETH_MASTER; 449 } 450 } 451
Indexes created Wed Sep 24 02:09:48 GMT 2025