makphy.c revision 1.57
1 /* $NetBSD: makphy.c,v 1.57 2019/02/27 18:21:04 jakllsch 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 1.57 2019/02/27 18:21:04 jakllsch 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_PHY_DESC(MARVELL, E1000_0), 96 MII_PHY_DESC(MARVELL, E1000_3), 97 MII_PHY_DESC(MARVELL, E1000_5), 98 MII_PHY_DESC(MARVELL, E1000_6), 99 MII_PHY_DESC(xxMARVELL, E1000_3), 100 MII_PHY_DESC(xxMARVELL, E1000_5), 101 MII_PHY_DESC(xxMARVELL, E1000S), 102 MII_PHY_DESC(xxMARVELL, E1011), 103 MII_PHY_DESC(xxMARVELL, E1101), 104 MII_PHY_DESC(xxMARVELL, E1111), 105 MII_PHY_DESC(xxMARVELL, E1112), 106 MII_PHY_DESC(xxMARVELL, E1116), 107 MII_PHY_DESC(xxMARVELL, E1116R), 108 MII_PHY_DESC(xxMARVELL, E1118), 109 MII_PHY_DESC(xxMARVELL, E1145), 110 MII_PHY_DESC(xxMARVELL, E1149), 111 MII_PHY_DESC(xxMARVELL, E1149R), 112 MII_PHY_DESC(xxMARVELL, E1240), 113 MII_PHY_DESC(xxMARVELL, E1318S), 114 MII_PHY_DESC(xxMARVELL, E1512), 115 MII_PHY_DESC(xxMARVELL, E1543), 116 MII_PHY_DESC(xxMARVELL, E3016), 117 MII_PHY_DESC(xxMARVELL, E3082), 118 MII_PHY_DESC(xxMARVELL, PHYG65G), 119 MII_PHY_END, 120 }; 121 122 #define MAKARG_PDOWN true /* Power DOWN */ 123 #define MAKARG_PUP false /* Power UP */ 124 125 static bool 126 makphy_isi210(device_t parent, struct mii_attach_args *ma) 127 { 128 129 /* I21[01]'s model number is 0 */ 130 if ((MII_OUI(ma->mii_id1, ma->mii_id2) == MII_OUI_xxMARVELL) 131 && (MII_MODEL(ma->mii_id2) == MII_MODEL_xxMARVELL_I210) 132 && (device_is_a(parent, "wm"))) 133 return true; 134 return false; 135 } 136 137 static int 138 makphymatch(device_t parent, cfdata_t match, void *aux) 139 { 140 struct mii_attach_args *ma = aux; 141 142 if (mii_phy_match(ma, makphys) != NULL) 143 return 10; 144 145 if (makphy_isi210(parent, ma)) 146 return 10; 147 148 return 0; 149 } 150 151 static void 152 makphyattach(device_t parent, device_t self, void *aux) 153 { 154 struct mii_softc *sc = device_private(self); 155 struct mii_attach_args *ma = aux; 156 struct mii_data *mii = ma->mii_data; 157 const struct mii_phydesc *mpd; 158 const char *name; 159 uint16_t reg; 160 161 mpd = mii_phy_match(ma, makphys); 162 aprint_naive(": Media interface\n"); 163 if (mpd) 164 name = mpd->mpd_name; 165 else if (makphy_isi210(parent, ma)) 166 name = MII_STR_xxMARVELL_I210; 167 else 168 panic("Unknown PHY"); 169 aprint_normal(": %s, rev. %d\n", name, MII_REV(ma->mii_id2)); 170 171 sc->mii_dev = self; 172 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 173 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 174 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 175 sc->mii_inst = mii->mii_instance; 176 sc->mii_phy = ma->mii_phyno; 177 sc->mii_funcs = &makphy_funcs; 178 sc->mii_pdata = mii; 179 sc->mii_flags = ma->mii_flags; 180 sc->mii_anegticks = MII_ANEGTICKS; 181 182 /* Make sure page 0 is selected. */ 183 PHY_WRITE(sc, MAKPHY_EADR, 0); 184 185 switch (sc->mii_mpd_model) { 186 case MII_MODEL_xxMARVELL_E1011: 187 case MII_MODEL_xxMARVELL_E1112: 188 PHY_READ(sc, MAKPHY_ESSR, ®); 189 if (reg & ESSR_FIBER_LINK) 190 sc->mii_flags |= MIIF_HAVEFIBER; 191 break; 192 default: 193 break; 194 } 195 196 PHY_RESET(sc); 197 198 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 199 sc->mii_capabilities &= ma->mii_capmask; 200 if (sc->mii_capabilities & BMSR_EXTSTAT) 201 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 202 203 aprint_normal_dev(self, ""); 204 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 205 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 206 aprint_error("no media present"); 207 else 208 mii_phy_add_media(sc); 209 aprint_normal("\n"); 210 } 211 212 static void 213 makphy_reset(struct mii_softc *sc) 214 { 215 uint16_t reg; 216 217 mii_phy_reset(sc); 218 219 /* 220 * Initialize PHY Specific Control Register. 221 */ 222 PHY_READ(sc, MAKPHY_PSCR, ®); 223 224 /* Assert CRS on transmit. */ 225 switch (sc->mii_mpd_model) { 226 case MII_MODEL_MARVELL_E1000_0: 227 case MII_MODEL_MARVELL_E1000_3: 228 case MII_MODEL_MARVELL_E1000_5: 229 case MII_MODEL_MARVELL_E1000_6: 230 case MII_MODEL_xxMARVELL_E1000S: 231 case MII_MODEL_xxMARVELL_E1011: 232 case MII_MODEL_xxMARVELL_E1111: 233 reg |= PSCR_CRS_ON_TX; 234 break; 235 default: /* No PSCR_CRS_ON_TX bit */ 236 break; 237 } 238 239 /* Enable scrambler if necessary. */ 240 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 241 reg &= ~E3016_PSCR_SCRAMBLE_DIS; 242 243 /* 244 * Store next page in the Link Partner Next Page register for 245 * compatibility with 802.3ab. 246 */ 247 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) 248 reg |= E3016_PSCR_REG8NXTPG; 249 250 PHY_WRITE(sc, MAKPHY_PSCR, reg); 251 252 /* Configure LEDs if they were left unconfigured. */ 253 if (sc->mii_mpd_model == MII_MODEL_xxMARVELL_E3016) { 254 PHY_READ(sc, 0x16, ®); 255 if (reg == 0) { 256 reg = (0x0b << 8) | (0x05 << 4) | 0x04; /* XXX */ 257 PHY_WRITE(sc, 0x16, reg); 258 } 259 } 260 261 mii_phy_reset(sc); 262 } 263 264 static void 265 makphy_pdown(struct mii_softc *sc, bool pdown) 266 { 267 uint16_t bmcr, new; 268 bool need_reset = false; 269 270 /* 271 * XXX 272 * PSCR (register 16) should be modified on some chips. 273 */ 274 275 PHY_READ(sc, MII_BMCR, &bmcr); 276 if (pdown) 277 new = bmcr | BMCR_PDOWN; 278 else 279 new = bmcr & ~BMCR_PDOWN; 280 if (bmcr != new) 281 need_reset = true; 282 283 if (need_reset) 284 new |= BMCR_RESET; 285 PHY_WRITE(sc, MII_BMCR, new); 286 } 287 288 static int 289 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 290 { 291 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 292 uint16_t bmcr; 293 294 if (!device_is_active(sc->mii_dev)) 295 return ENXIO; 296 297 switch (cmd) { 298 case MII_POLLSTAT: 299 /* 300 * If we're not polling our PHY instance, just return. 301 */ 302 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 303 return 0; 304 break; 305 306 case MII_MEDIACHG: 307 /* 308 * If the media indicates a different PHY instance, 309 * isolate ourselves. 310 */ 311 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 312 PHY_READ(sc, MII_BMCR, &bmcr); 313 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_ISO); 314 return 0; 315 } 316 317 /* 318 * If the interface is not up, don't do anything. 319 */ 320 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 321 break; 322 323 /* Try to power up the PHY in case it's down */ 324 if (IFM_SUBTYPE(ife->ifm_media) != IFM_NONE) 325 makphy_pdown(sc, MAKARG_PUP); 326 327 mii_phy_setmedia(sc); 328 329 /* 330 * If autonegitation is not enabled, we need a 331 * software reset for the settings to take effect. 332 */ 333 if (IFM_SUBTYPE(ife->ifm_media) == IFM_NONE) 334 makphy_pdown(sc, MAKARG_PDOWN); 335 else if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 336 PHY_READ(sc, MII_BMCR, &bmcr); 337 PHY_WRITE(sc, MII_BMCR, bmcr | BMCR_RESET); 338 } 339 break; 340 341 case MII_TICK: 342 /* 343 * If we're not currently selected, just return. 344 */ 345 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 346 return 0; 347 348 if (mii_phy_tick(sc) == EJUSTRETURN) 349 return 0; 350 break; 351 352 case MII_DOWN: 353 mii_phy_down(sc); 354 return 0; 355 } 356 357 /* Update the media status. */ 358 mii_phy_status(sc); 359 360 /* Callback if something changed. */ 361 mii_phy_update(sc, cmd); 362 return 0; 363 } 364 365 static void 366 makphy_status(struct mii_softc *sc) 367 { 368 struct mii_data *mii = sc->mii_pdata; 369 uint16_t bmcr, gsr, pssr; 370 371 mii->mii_media_status = IFM_AVALID; 372 mii->mii_media_active = IFM_ETHER; 373 374 PHY_READ(sc, MII_BMCR, &bmcr); 375 /* XXX FIXME: Use different page for Fiber on newer chips */ 376 PHY_READ(sc, MAKPHY_PSSR, &pssr); 377 378 if (pssr & PSSR_LINK) 379 mii->mii_media_status |= IFM_ACTIVE; 380 381 if (bmcr & BMCR_LOOP) 382 mii->mii_media_active |= IFM_LOOP; 383 384 if (bmcr & BMCR_ISO) { 385 mii->mii_media_active |= IFM_NONE; 386 mii->mii_media_status = 0; 387 return; 388 } 389 390 if ((bmcr & BMCR_AUTOEN) != 0) { 391 /* 392 * Check Speed and Duplex Resolved bit. 393 * Note that this bit is always 1 when autonego is not enabled. 394 */ 395 if (!(pssr & PSSR_RESOLVED)) { 396 /* Erg, still trying, I guess... */ 397 mii->mii_media_active |= IFM_NONE; 398 return; 399 } 400 } else { 401 if ((pssr & PSSR_LINK) == 0) { 402 mii->mii_media_active |= IFM_NONE; 403 return; 404 } 405 } 406 407 /* XXX FIXME: Use different page for Fiber on newer chips */ 408 if (sc->mii_flags & MIIF_IS_1000X) { 409 mii->mii_media_active |= IFM_1000_SX; 410 } else { 411 switch (PSSR_SPEED_get(pssr)) { 412 case SPEED_1000: 413 mii->mii_media_active |= IFM_1000_T; 414 break; 415 case SPEED_100: 416 mii->mii_media_active |= IFM_100_TX; 417 break; 418 case SPEED_10: 419 mii->mii_media_active |= IFM_10_T; 420 break; 421 default: /* Undefined (reserved) value */ 422 mii->mii_media_active |= IFM_NONE; 423 mii->mii_media_status = 0; 424 return; 425 } 426 } 427 428 if (pssr & PSSR_DUPLEX) 429 mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; 430 else 431 mii->mii_media_active |= IFM_HDX; 432 433 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 434 PHY_READ(sc, MII_100T2SR, &gsr); 435 if (gsr & GTSR_MS_RES) 436 mii->mii_media_active |= IFM_ETH_MASTER; 437 } 438 } 439
Indexes created Wed Sep 24 14:09:57 GMT 2025