makphy.c revision 1.47
1 /* $NetBSD: makphy.c,v 1.47 2018/12/30 06:33:30 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 1.47 2018/12/30 06:33:30 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_E1543, 143 MII_STR_xxMARVELL_E1543 }, 144 145 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3016, 146 MII_STR_xxMARVELL_E3016 }, 147 148 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E3082, 149 MII_STR_xxMARVELL_E3082 }, 150 151 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_PHYG65G, 152 MII_STR_xxMARVELL_PHYG65G }, 153 154 { 0, 0, 155 NULL }, 156 }; 157 158 #define MAKARG_PDOWN true /* Power DOWN */ 159 #define MAKARG_PUP false /* Power UP */ 160 161 static int 162 makphymatch(device_t parent, cfdata_t match, void *aux) 163 { 164 struct mii_attach_args *ma = aux; 165 166 if (mii_phy_match(ma, makphys) != NULL) 167 return (10); 168 169 return (0); 170 } 171 172 static void 173 makphyattach(device_t parent, device_t self, void *aux) 174 { 175 struct mii_softc *sc = device_private(self); 176 struct mii_attach_args *ma = aux; 177 struct mii_data *mii = ma->mii_data; 178 const struct mii_phydesc *mpd; 179 180 mpd = mii_phy_match(ma, makphys); 181 aprint_naive(": Media interface\n"); 182 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 183 184 sc->mii_dev = self; 185 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 186 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 187 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 188 sc->mii_inst = mii->mii_instance; 189 sc->mii_phy = ma->mii_phyno; 190 sc->mii_funcs = &makphy_funcs; 191 sc->mii_pdata = mii; 192 sc->mii_flags = ma->mii_flags; 193 sc->mii_anegticks = MII_ANEGTICKS; 194 195 /* Make sure page 0 is selected. */ 196 PHY_WRITE(sc, MAKPHY_EADR, 0); 197 198 switch (sc->mii_mpd_model) { 199 case MII_MODEL_xxMARVELL_E1011: 200 case MII_MODEL_xxMARVELL_E1112: 201 if (PHY_READ(sc, MAKPHY_ESSR) & ESSR_FIBER_LINK) 202 sc->mii_flags |= MIIF_HAVEFIBER; 203 break; 204 default: 205 break; 206 } 207 208 PHY_RESET(sc); 209 210 sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 211 if (sc->mii_capabilities & BMSR_EXTSTAT) 212 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 213 214 aprint_normal_dev(self, ""); 215 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 216 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 217 aprint_error("no media present"); 218 else 219 mii_phy_add_media(sc); 220 aprint_normal("\n"); 221 } 222 223 static void 224 makphy_reset(struct mii_softc *sc) 225 { 226 int reg; 227 228 mii_phy_reset(sc); 229 230 /* 231 * Initialize PHY Specific Control Register. 232 */ 233 reg = PHY_READ(sc, MAKPHY_PSCR); 234 235 /* Assert CRS on transmit. */ 236 switch (sc->mii_mpd_model) { 237 case MII_MODEL_MARVELL_E1000_0: 238 case MII_MODEL_MARVELL_E1000_3: 239 case MII_MODEL_MARVELL_E1000_5: 240 case MII_MODEL_MARVELL_E1000_6: 241 case MII_MODEL_xxMARVELL_E1000S: 242 case MII_MODEL_xxMARVELL_E1011: 243 case MII_MODEL_xxMARVELL_E1111: 244 reg |= PSCR_CRS_ON_TX; 245 break; 246 default: /* No PSCR_CRS_ON_TX bit */ 247 break; 248 } 249 250 /* Enable scrambler if necessary. */ 251 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 252 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 253 254 /* 255 * Store next page in the Link Partner Next Page register for 256 * compatibility with 802.3ab. 257 */ 258 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 259 reg |= E3016_PSCR_REG8NXTPG; 260 261 PHY_WRITE(sc, MAKPHY_PSCR, reg); 262 263 /* Configure LEDs if they were left unconfigured. */ 264 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016 && 265 PHY_READ(sc, 0x16) == 0) { 266 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 267 PHY_WRITE(sc, 0x16, reg); 268 } 269 270 mii_phy_reset(sc); 271 } 272 273 static void 274 makphy_pdown(struct mii_softc *sc, bool pdown) 275 { 276 int bmcr, new; 277 bool need_reset = false; 278 279 /* 280 * XXX 281 * PSCR (register 16) should be modified on some chips. 282 */ 283 284 bmcr = PHY_READ(sc, MII_BMCR); 285 if (pdown) 286 new = bmcr | BMCR_PDOWN; 287 else 288 new = bmcr & ~BMCR_PDOWN; 289 if (bmcr != new) 290 need_reset = true; 291 292 if (need_reset) 293 new |= BMCR_RESET; 294 PHY_WRITE(sc, MII_BMCR, new); 295 } 296 297 static int 298 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 299 { 300 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 301 int bmcr; 302 303 if (!device_is_active(sc->mii_dev)) 304 return (ENXIO); 305 306 switch (cmd) { 307 case MII_POLLSTAT: 308 /* 309 * If we're not polling our PHY instance, just return. 310 */ 311 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 312 return (0); 313 break; 314 315 case MII_MEDIACHG: 316 /* 317 * If the media indicates a different PHY instance, 318 * isolate ourselves. 319 */ 320 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 321 bmcr = PHY_READ(sc, MII_BMCR); 322 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 323 return (0); 324 } 325 326 /* 327 * If the interface is not up, don't do anything. 328 */ 329 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 330 break; 331 332 /* Try to power up the PHY in case it's down */ 333 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 334 makphy_pdown(sc, MAKARG_PUP); 335 336 mii_phy_setmedia(sc); 337 338 /* 339 * If autonegitation is not enabled, we need a 340 * software reset for the settings to take effect. 341 */ 342 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 343 makphy_pdown(sc, MAKARG_PDOWN); 344 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 345 bmcr = PHY_READ(sc, MII_BMCR); 346 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 347 } 348 break; 349 350 case MII_TICK: 351 /* 352 * If we're not currently selected, just return. 353 */ 354 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 355 return (0); 356 357 if (mii_phy_tick(sc) == EJUSTRETURN) 358 return (0); 359 break; 360 361 case MII_DOWN: 362 mii_phy_down(sc); 363 return (0); 364 } 365 366 /* Update the media status. */ 367 mii_phy_status(sc); 368 369 /* Callback if something changed. */ 370 mii_phy_update(sc, cmd); 371 return (0); 372 } 373 374 static void 375 makphy_status(struct mii_softc *sc) 376 { 377 struct mii_data *mii = sc->mii_pdata; 378 int bmcr, gsr, pssr; 379 380 mii->mii_media_status = IFM_AVALID; 381 mii->mii_media_active = IFM_ETHER; 382 383 bmcr = PHY_READ(sc, MII_BMCR); 384 /* XXX FIXME: Use different page for Fiber on newer chips */ 385 pssr = PHY_READ(sc, MAKPHY_PSSR); 386 387 if (pssr & PSSR_LINK) 388 mii->mii_media_status |= IFM_ACTIVE; 389 390 if (bmcr & BMCR_LOOP) 391 mii->mii_media_active |= IFM_LOOP; 392 393 if (bmcr & BMCR_ISO) { 394 mii->mii_media_active |= IFM_NONE; 395 mii->mii_media_status = 0; 396 return; 397 } 398 399 if ((bmcr & BMCR_AUTOEN) != 0) { 400 /* 401 * Check Speed and Duplex Resolved bit. 402 * Note that this bit is always 1 when autonego is not enabled. 403 */ 404 if (!(pssr & PSSR_RESOLVED)) { 405 /* Erg, still trying, I guess... */ 406 mii->mii_media_active |= IFM_NONE; 407 return; 408 } 409 } else { 410 if ((pssr & PSSR_LINK) == 0) { 411 mii->mii_media_active |= IFM_NONE; 412 return; 413 } 414 } 415 416 /* XXX FIXME: Use different page for Fiber on newer chips */ 417 if (sc->mii_flags & MIIF_IS_1000X) { 418 mii->mii_media_active |= IFM_1000_SX; 419 } else { 420 switch (PSSR_SPEED_get(pssr)) { 421 case SPEED_1000: 422 mii->mii_media_active |= IFM_1000_T; 423 break; 424 case SPEED_100: 425 mii->mii_media_active |= IFM_100_TX; 426 break; 427 case SPEED_10: 428 mii->mii_media_active |= IFM_10_T; 429 break; 430 default: /* Undefined (reserved) value */ 431 mii->mii_media_active |= IFM_NONE; 432 mii->mii_media_status = 0; 433 return; 434 } 435 } 436 437 if (pssr & PSSR_DUPLEX) 438 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 439 else 440 mii->mii_media_active |= IFM_HDX; 441 442 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 443 gsr = PHY_READ(sc, MII_100T2SR); 444 if (gsr & GTSR_MS_RES) 445 mii->mii_media_active |= IFM_ETH_MASTER; 446 } 447 } 448
Indexes created Thu Sep 25 16:09:42 GMT 2025