brgphy.c revision 1.24
1 /* $NetBSD: brgphy.c,v 1.24 2005/12/08 03:16:43 jonathan 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Manuel Bouyer. 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 /* 70 * driver for the Broadcom BCM5400 Gig-E PHY. 71 * 72 * Programming information for this PHY was gleaned from FreeBSD 73 * (they were apparently able to get a datasheet from Broadcom). 74 */ 75 76 #include <sys/cdefs.h> 77 __KERNEL_RCSID(0, "$NetBSD: brgphy.c,v 1.24 2005/12/08 03:16:43 jonathan Exp $"); 78 79 #include <sys/param.h> 80 #include <sys/systm.h> 81 #include <sys/kernel.h> 82 #include <sys/device.h> 83 #include <sys/socket.h> 84 #include <sys/errno.h> 85 86 #include <net/if.h> 87 #include <net/if_media.h> 88 89 #include <dev/mii/mii.h> 90 #include <dev/mii/miivar.h> 91 #include <dev/mii/miidevs.h> 92 93 #include <dev/mii/brgphyreg.h> 94 95 static int brgphymatch(struct device *, struct cfdata *, void *); 96 static void brgphyattach(struct device *, struct device *, void *); 97 98 CFATTACH_DECL(brgphy, sizeof(struct mii_softc), 99 brgphymatch, brgphyattach, mii_phy_detach, mii_phy_activate); 100 101 static int brgphy_service(struct mii_softc *, struct mii_data *, int); 102 static void brgphy_status(struct mii_softc *); 103 104 static void brgphy_5401_reset(struct mii_softc *); 105 static void brgphy_5411_reset(struct mii_softc *); 106 static void brgphy_5703_reset(struct mii_softc *); 107 static void brgphy_5704_reset(struct mii_softc *); 108 static void brgphy_5705_reset(struct mii_softc *); 109 static void brgphy_5750_reset(struct mii_softc *); 110 111 static const struct mii_phy_funcs brgphy_funcs = { 112 brgphy_service, brgphy_status, mii_phy_reset, 113 }; 114 115 static const struct mii_phy_funcs brgphy_5401_funcs = { 116 brgphy_service, brgphy_status, brgphy_5401_reset, 117 }; 118 119 static const struct mii_phy_funcs brgphy_5411_funcs = { 120 brgphy_service, brgphy_status, brgphy_5411_reset, 121 }; 122 123 static const struct mii_phy_funcs brgphy_5703_funcs = { 124 brgphy_service, brgphy_status, brgphy_5703_reset, 125 }; 126 127 static const struct mii_phy_funcs brgphy_5704_funcs = { 128 brgphy_service, brgphy_status, brgphy_5704_reset, 129 }; 130 131 static const struct mii_phy_funcs brgphy_5705_funcs = { 132 brgphy_service, brgphy_status, brgphy_5705_reset, 133 }; 134 135 const struct mii_phy_funcs brgphy_5750_funcs = { 136 brgphy_service, brgphy_status, brgphy_5750_reset, 137 }; 138 139 140 static const struct mii_phydesc brgphys[] = { 141 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 142 MII_STR_BROADCOM_BCM5400 }, 143 144 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 145 MII_STR_BROADCOM_BCM5401 }, 146 147 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 148 MII_STR_BROADCOM_BCM5411 }, 149 150 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421, 151 MII_STR_BROADCOM_BCM5421 }, 152 153 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 154 MII_STR_BROADCOM_BCM5701 }, 155 156 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5703, 157 MII_STR_BROADCOM_BCM5703 }, 158 159 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5704, 160 MII_STR_BROADCOM_BCM5704 }, 161 162 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5714, 163 MII_STR_BROADCOM_BCM5714 }, 164 165 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5750, 166 MII_STR_BROADCOM_BCM5750 }, 167 168 { 0, 0, 169 NULL }, 170 }; 171 172 static void bcm5401_load_dspcode(struct mii_softc *); 173 static void bcm5411_load_dspcode(struct mii_softc *); 174 static void bcm5703_load_dspcode(struct mii_softc *); 175 static void bcm5704_load_dspcode(struct mii_softc *); 176 static void bcm5750_load_dspcode(struct mii_softc *); 177 178 static int 179 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 180 { 181 struct mii_attach_args *ma = aux; 182 183 if (mii_phy_match(ma, brgphys) != NULL) 184 return (10); 185 186 return (0); 187 } 188 189 static void 190 brgphyattach(struct device *parent, struct device *self, void *aux) 191 { 192 struct mii_softc *sc = (struct mii_softc *)self; 193 struct mii_attach_args *ma = aux; 194 struct mii_data *mii = ma->mii_data; 195 const struct mii_phydesc *mpd; 196 197 mpd = mii_phy_match(ma, brgphys); 198 aprint_naive(": Media interface\n"); 199 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 200 201 sc->mii_inst = mii->mii_instance; 202 sc->mii_phy = ma->mii_phyno; 203 sc->mii_pdata = mii; 204 sc->mii_flags = ma->mii_flags; 205 sc->mii_anegticks = 5; 206 207 switch (MII_MODEL(ma->mii_id2)) { 208 case MII_MODEL_BROADCOM_BCM5400: 209 sc->mii_funcs = &brgphy_5401_funcs; 210 aprint_normal("%s: using BCM5401 DSP patch\n", 211 sc->mii_dev.dv_xname); 212 break; 213 214 case MII_MODEL_BROADCOM_BCM5401: 215 if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { 216 sc->mii_funcs = &brgphy_5401_funcs; 217 aprint_normal("%s: using BCM5401 DSP patch\n", 218 sc->mii_dev.dv_xname); 219 } else 220 sc->mii_funcs = &brgphy_funcs; 221 break; 222 223 case MII_MODEL_BROADCOM_BCM5411: 224 sc->mii_funcs = &brgphy_5411_funcs; 225 aprint_normal("%s: using BCM5411 DSP patch\n", 226 sc->mii_dev.dv_xname); 227 break; 228 229 #ifdef notyet /* unverified, untested */ 230 case MII_MODEL_BROADCOM_BCM5703: 231 sc->mii_funcs = &brgphy_5703_funcs; 232 aprint_normal("%s: using BCM5703 DSP patch\n", 233 sc->mii_dev.dv_xname); 234 break; 235 #endif 236 237 case MII_MODEL_BROADCOM_BCM5704: 238 sc->mii_funcs = &brgphy_5704_funcs; 239 aprint_normal("%s: using BCM5704 DSP patch\n", 240 sc->mii_dev.dv_xname); 241 break; 242 243 case MII_MODEL_BROADCOM_BCM5705: 244 sc->mii_funcs = &brgphy_5705_funcs; 245 break; 246 247 case MII_MODEL_BROADCOM_BCM5714: 248 case MII_MODEL_BROADCOM_BCM5750: 249 sc->mii_funcs = &brgphy_5750_funcs; 250 break; 251 252 default: 253 sc->mii_funcs = &brgphy_funcs; 254 break; 255 } 256 257 PHY_RESET(sc); 258 259 sc->mii_capabilities = 260 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 261 if (sc->mii_capabilities & BMSR_EXTSTAT) 262 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 263 264 aprint_normal("%s: ", sc->mii_dev.dv_xname); 265 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 266 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 267 aprint_error("no media present"); 268 else 269 mii_phy_add_media(sc); 270 aprint_normal("\n"); 271 } 272 273 static int 274 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 275 { 276 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 277 int reg; 278 279 switch (cmd) { 280 case MII_POLLSTAT: 281 /* 282 * If we're not polling our PHY instance, just return. 283 */ 284 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 285 return (0); 286 break; 287 288 case MII_MEDIACHG: 289 /* 290 * If the media indicates a different PHY instance, 291 * isolate ourselves. 292 */ 293 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 294 reg = PHY_READ(sc, MII_BMCR); 295 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 296 return (0); 297 } 298 299 /* 300 * If the interface is not up, don't do anything. 301 */ 302 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 303 break; 304 305 if (sc->mii_funcs != &brgphy_5705_funcs) 306 mii_phy_reset(sc); /* XXX hardware bug work-around */ 307 mii_phy_setmedia(sc); 308 break; 309 310 case MII_TICK: 311 /* 312 * If we're not currently selected, just return. 313 */ 314 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 315 return (0); 316 317 if (mii_phy_tick(sc) == EJUSTRETURN) 318 return (0); 319 break; 320 321 case MII_DOWN: 322 mii_phy_down(sc); 323 return (0); 324 } 325 326 /* Update the media status. */ 327 mii_phy_status(sc); 328 329 /* 330 * Callback if something changed. Note that we need to poke 331 * the DSP on the Broadcom PHYs if the media changes. 332 */ 333 if (sc->mii_media_active != mii->mii_media_active || 334 sc->mii_media_status != mii->mii_media_status || 335 cmd == MII_MEDIACHG) { 336 mii_phy_update(sc, cmd); 337 if (sc->mii_funcs == &brgphy_5401_funcs) 338 bcm5401_load_dspcode(sc); 339 else if (sc->mii_funcs == &brgphy_5411_funcs) 340 bcm5411_load_dspcode(sc); 341 } 342 return (0); 343 } 344 345 static void 346 brgphy_status(struct mii_softc *sc) 347 { 348 struct mii_data *mii = sc->mii_pdata; 349 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 350 int bmcr, auxsts, gtsr; 351 352 mii->mii_media_status = IFM_AVALID; 353 mii->mii_media_active = IFM_ETHER; 354 355 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 356 357 if (auxsts & BRGPHY_AUXSTS_LINK) 358 mii->mii_media_status |= IFM_ACTIVE; 359 360 bmcr = PHY_READ(sc, MII_BMCR); 361 if (bmcr & BMCR_ISO) { 362 mii->mii_media_active |= IFM_NONE; 363 mii->mii_media_status = 0; 364 return; 365 } 366 367 if (bmcr & BMCR_LOOP) 368 mii->mii_media_active |= IFM_LOOP; 369 370 if (bmcr & BMCR_AUTOEN) { 371 /* 372 * The media status bits are only valid of autonegotiation 373 * has completed (or it's disabled). 374 */ 375 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 376 /* Erg, still trying, I guess... */ 377 mii->mii_media_active |= IFM_NONE; 378 return; 379 } 380 381 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 382 case BRGPHY_RES_1000FD: 383 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 384 gtsr = PHY_READ(sc, MII_100T2SR); 385 if (gtsr & GTSR_MS_RES) 386 mii->mii_media_active |= IFM_ETH_MASTER; 387 break; 388 389 case BRGPHY_RES_1000HD: 390 mii->mii_media_active |= IFM_1000_T; 391 gtsr = PHY_READ(sc, MII_100T2SR); 392 if (gtsr & GTSR_MS_RES) 393 mii->mii_media_active |= IFM_ETH_MASTER; 394 break; 395 396 case BRGPHY_RES_100FD: 397 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 398 break; 399 400 case BRGPHY_RES_100T4: 401 mii->mii_media_active |= IFM_100_T4; 402 break; 403 404 case BRGPHY_RES_100HD: 405 mii->mii_media_active |= IFM_100_TX; 406 break; 407 408 case BRGPHY_RES_10FD: 409 mii->mii_media_active |= IFM_10_T|IFM_FDX; 410 break; 411 412 case BRGPHY_RES_10HD: 413 mii->mii_media_active |= IFM_10_T; 414 break; 415 416 default: 417 mii->mii_media_active |= IFM_NONE; 418 mii->mii_media_status = 0; 419 } 420 if (mii->mii_media_active & IFM_FDX) 421 mii->mii_media_active |= mii_phy_flowstatus(sc); 422 } else 423 mii->mii_media_active = ife->ifm_media; 424 } 425 426 static void 427 brgphy_5401_reset(struct mii_softc *sc) 428 { 429 430 mii_phy_reset(sc); 431 bcm5401_load_dspcode(sc); 432 } 433 434 static void 435 brgphy_5411_reset(struct mii_softc *sc) 436 { 437 438 mii_phy_reset(sc); 439 bcm5411_load_dspcode(sc); 440 } 441 442 443 static void 444 brgphy_5703_reset(struct mii_softc *sc) 445 { 446 447 mii_phy_reset(sc); 448 bcm5703_load_dspcode(sc); 449 } 450 451 static void 452 brgphy_5704_reset(struct mii_softc *sc) 453 { 454 455 mii_phy_reset(sc); 456 bcm5704_load_dspcode(sc); 457 } 458 459 /* 460 * Hardware bug workaround. Do nothing since after 461 * reset the 5705 PHY would get stuck in 10/100 MII mode. 462 */ 463 464 static void 465 brgphy_5705_reset(struct mii_softc *sc) 466 { 467 } 468 469 static void 470 brgphy_5750_reset(struct mii_softc *sc) 471 { 472 mii_phy_reset(sc); 473 bcm5750_load_dspcode(sc); 474 } 475 476 /* Turn off tap power management on 5401. */ 477 static void 478 bcm5401_load_dspcode(struct mii_softc *sc) 479 { 480 static const struct { 481 int reg; 482 uint16_t val; 483 } dspcode[] = { 484 { BRGPHY_MII_AUXCTL, 0x0c20 }, 485 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, 486 { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, 487 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, 488 { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, 489 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 490 { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, 491 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 492 { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, 493 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 494 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, 495 { 0, 0 }, 496 }; 497 int i; 498 499 for (i = 0; dspcode[i].reg != 0; i++) 500 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 501 delay(40); 502 } 503 504 static void 505 bcm5411_load_dspcode(struct mii_softc *sc) 506 { 507 static const struct { 508 int reg; 509 uint16_t val; 510 } dspcode[] = { 511 { 0x1c, 0x8c23 }, 512 { 0x1c, 0x8ca3 }, 513 { 0x1c, 0x8c23 }, 514 { 0, 0 }, 515 }; 516 int i; 517 518 for (i = 0; dspcode[i].reg != 0; i++) 519 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 520 } 521 522 static void 523 bcm5703_load_dspcode(struct mii_softc *sc) 524 { 525 static const struct { 526 int reg; 527 uint16_t val; 528 } dspcode[] = { 529 { BRGPHY_MII_AUXCTL, 0x0c00 }, 530 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 531 { BRGPHY_MII_DSP_RW_PORT, 0x2aaa }, 532 { 0, 0 }, 533 }; 534 int i; 535 536 for (i = 0; dspcode[i].reg != 0; i++) 537 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 538 } 539 540 static void 541 bcm5704_load_dspcode(struct mii_softc *sc) 542 { 543 static const struct { 544 int reg; 545 uint16_t val; 546 } dspcode[] = { 547 { 0x1c, 0x8d68 }, 548 { 0x1c, 0x8d68 }, 549 { 0, 0 }, 550 }; 551 int i; 552 553 for (i = 0; dspcode[i].reg != 0; i++) 554 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 555 } 556 557 static void 558 bcm5750_load_dspcode(struct mii_softc *sc) 559 { 560 static const struct { 561 int reg; 562 uint16_t val; 563 } dspcode[] = { 564 { BRGPHY_MII_AUXCTL, 0x0c00 }, 565 { BRGPHY_MII_DSP_ADDR_REG, 0x000a }, 566 { BRGPHY_MII_DSP_RW_PORT, 0x310b }, 567 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 568 { BRGPHY_MII_DSP_RW_PORT, 0x9506 }, 569 { BRGPHY_MII_DSP_ADDR_REG, 0x401f }, 570 { BRGPHY_MII_DSP_RW_PORT, 0x14e2 }, 571 { BRGPHY_MII_AUXCTL, 0x0400 }, 572 { 0, 0 }, 573 }; 574 int i; 575 576 for (i = 0; dspcode[i].reg != 0; i++) 577 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 578 } 579
Indexes created Fri Sep 26 08:10:20 GMT 2025