brgphy.c revision 1.31
1 /* $NetBSD: brgphy.c,v 1.31 2006/11/26 16:31:48 tsutsui 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 1.31 2006/11/26 16:31:48 tsutsui 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_BCM5705, 163 MII_STR_BROADCOM_BCM5705 }, 164 165 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5714, 166 MII_STR_BROADCOM_BCM5714 }, 167 168 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5750, 169 MII_STR_BROADCOM_BCM5750 }, 170 171 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5752, 172 MII_STR_BROADCOM_BCM5752 }, 173 174 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5780, 175 MII_STR_BROADCOM_BCM5780 }, 176 177 { 0, 0, 178 NULL }, 179 }; 180 181 static void bcm5401_load_dspcode(struct mii_softc *); 182 static void bcm5411_load_dspcode(struct mii_softc *); 183 static void bcm5703_load_dspcode(struct mii_softc *); 184 static void bcm5704_load_dspcode(struct mii_softc *); 185 static void bcm5750_load_dspcode(struct mii_softc *); 186 187 static int 188 brgphymatch(struct device *parent, struct cfdata *match, 189 void *aux) 190 { 191 struct mii_attach_args *ma = aux; 192 193 if (mii_phy_match(ma, brgphys) != NULL) 194 return (10); 195 196 return (0); 197 } 198 199 static void 200 brgphyattach(struct device *parent, struct device *self, void *aux) 201 { 202 struct mii_softc *sc = device_private(self); 203 struct mii_attach_args *ma = aux; 204 struct mii_data *mii = ma->mii_data; 205 const struct mii_phydesc *mpd; 206 207 mpd = mii_phy_match(ma, brgphys); 208 aprint_naive(": Media interface\n"); 209 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 210 211 sc->mii_inst = mii->mii_instance; 212 sc->mii_phy = ma->mii_phyno; 213 sc->mii_pdata = mii; 214 sc->mii_flags = ma->mii_flags; 215 sc->mii_anegticks = MII_ANEGTICKS; 216 217 switch (MII_MODEL(ma->mii_id2)) { 218 case MII_MODEL_BROADCOM_BCM5400: 219 sc->mii_funcs = &brgphy_5401_funcs; 220 aprint_normal("%s: using BCM5401 DSP patch\n", 221 sc->mii_dev.dv_xname); 222 break; 223 224 case MII_MODEL_BROADCOM_BCM5401: 225 if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { 226 sc->mii_funcs = &brgphy_5401_funcs; 227 aprint_normal("%s: using BCM5401 DSP patch\n", 228 sc->mii_dev.dv_xname); 229 } else 230 sc->mii_funcs = &brgphy_funcs; 231 break; 232 233 case MII_MODEL_BROADCOM_BCM5411: 234 sc->mii_funcs = &brgphy_5411_funcs; 235 aprint_normal("%s: using BCM5411 DSP patch\n", 236 sc->mii_dev.dv_xname); 237 break; 238 239 #ifdef notyet /* unverified, untested */ 240 case MII_MODEL_BROADCOM_BCM5703: 241 sc->mii_funcs = &brgphy_5703_funcs; 242 aprint_normal("%s: using BCM5703 DSP patch\n", 243 sc->mii_dev.dv_xname); 244 break; 245 #endif 246 247 case MII_MODEL_BROADCOM_BCM5704: 248 sc->mii_funcs = &brgphy_5704_funcs; 249 aprint_normal("%s: using BCM5704 DSP patch\n", 250 sc->mii_dev.dv_xname); 251 break; 252 253 case MII_MODEL_BROADCOM_BCM5705: 254 sc->mii_funcs = &brgphy_5705_funcs; 255 break; 256 257 case MII_MODEL_BROADCOM_BCM5714: 258 case MII_MODEL_BROADCOM_BCM5780: 259 case MII_MODEL_BROADCOM_BCM5750: 260 case MII_MODEL_BROADCOM_BCM5752: 261 sc->mii_funcs = &brgphy_5750_funcs; 262 break; 263 264 default: 265 sc->mii_funcs = &brgphy_funcs; 266 break; 267 } 268 269 PHY_RESET(sc); 270 271 sc->mii_capabilities = 272 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 273 if (sc->mii_capabilities & BMSR_EXTSTAT) 274 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 275 276 aprint_normal("%s: ", sc->mii_dev.dv_xname); 277 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 278 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 279 aprint_error("no media present"); 280 else 281 mii_phy_add_media(sc); 282 aprint_normal("\n"); 283 } 284 285 static int 286 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 287 { 288 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 289 int reg; 290 291 switch (cmd) { 292 case MII_POLLSTAT: 293 /* 294 * If we're not polling our PHY instance, just return. 295 */ 296 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 297 return (0); 298 break; 299 300 case MII_MEDIACHG: 301 /* 302 * If the media indicates a different PHY instance, 303 * isolate ourselves. 304 */ 305 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 306 reg = PHY_READ(sc, MII_BMCR); 307 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 308 return (0); 309 } 310 311 /* 312 * If the interface is not up, don't do anything. 313 */ 314 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 315 break; 316 317 if (sc->mii_funcs != &brgphy_5705_funcs) 318 mii_phy_reset(sc); /* XXX hardware bug work-around */ 319 mii_phy_setmedia(sc); 320 break; 321 322 case MII_TICK: 323 /* 324 * If we're not currently selected, just return. 325 */ 326 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 327 return (0); 328 329 if (mii_phy_tick(sc) == EJUSTRETURN) 330 return (0); 331 break; 332 333 case MII_DOWN: 334 mii_phy_down(sc); 335 return (0); 336 } 337 338 /* Update the media status. */ 339 mii_phy_status(sc); 340 341 /* 342 * Callback if something changed. Note that we need to poke 343 * the DSP on the Broadcom PHYs if the media changes. 344 */ 345 if (sc->mii_media_active != mii->mii_media_active || 346 sc->mii_media_status != mii->mii_media_status || 347 cmd == MII_MEDIACHG) { 348 mii_phy_update(sc, cmd); 349 if (sc->mii_funcs == &brgphy_5401_funcs) 350 bcm5401_load_dspcode(sc); 351 else if (sc->mii_funcs == &brgphy_5411_funcs) 352 bcm5411_load_dspcode(sc); 353 } 354 return (0); 355 } 356 357 static void 358 brgphy_status(struct mii_softc *sc) 359 { 360 struct mii_data *mii = sc->mii_pdata; 361 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 362 int bmcr, auxsts, gtsr; 363 364 mii->mii_media_status = IFM_AVALID; 365 mii->mii_media_active = IFM_ETHER; 366 367 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 368 369 if (auxsts & BRGPHY_AUXSTS_LINK) 370 mii->mii_media_status |= IFM_ACTIVE; 371 372 bmcr = PHY_READ(sc, MII_BMCR); 373 if (bmcr & BMCR_ISO) { 374 mii->mii_media_active |= IFM_NONE; 375 mii->mii_media_status = 0; 376 return; 377 } 378 379 if (bmcr & BMCR_LOOP) 380 mii->mii_media_active |= IFM_LOOP; 381 382 if (bmcr & BMCR_AUTOEN) { 383 /* 384 * The media status bits are only valid of autonegotiation 385 * has completed (or it's disabled). 386 */ 387 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 388 /* Erg, still trying, I guess... */ 389 mii->mii_media_active |= IFM_NONE; 390 return; 391 } 392 393 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 394 case BRGPHY_RES_1000FD: 395 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 396 gtsr = PHY_READ(sc, MII_100T2SR); 397 if (gtsr & GTSR_MS_RES) 398 mii->mii_media_active |= IFM_ETH_MASTER; 399 break; 400 401 case BRGPHY_RES_1000HD: 402 mii->mii_media_active |= IFM_1000_T; 403 gtsr = PHY_READ(sc, MII_100T2SR); 404 if (gtsr & GTSR_MS_RES) 405 mii->mii_media_active |= IFM_ETH_MASTER; 406 break; 407 408 case BRGPHY_RES_100FD: 409 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 410 break; 411 412 case BRGPHY_RES_100T4: 413 mii->mii_media_active |= IFM_100_T4; 414 break; 415 416 case BRGPHY_RES_100HD: 417 mii->mii_media_active |= IFM_100_TX; 418 break; 419 420 case BRGPHY_RES_10FD: 421 mii->mii_media_active |= IFM_10_T|IFM_FDX; 422 break; 423 424 case BRGPHY_RES_10HD: 425 mii->mii_media_active |= IFM_10_T; 426 break; 427 428 default: 429 mii->mii_media_active |= IFM_NONE; 430 mii->mii_media_status = 0; 431 } 432 if (mii->mii_media_active & IFM_FDX) 433 mii->mii_media_active |= mii_phy_flowstatus(sc); 434 } else 435 mii->mii_media_active = ife->ifm_media; 436 } 437 438 static void 439 brgphy_5401_reset(struct mii_softc *sc) 440 { 441 442 mii_phy_reset(sc); 443 bcm5401_load_dspcode(sc); 444 } 445 446 static void 447 brgphy_5411_reset(struct mii_softc *sc) 448 { 449 450 mii_phy_reset(sc); 451 bcm5411_load_dspcode(sc); 452 } 453 454 455 static void 456 brgphy_5703_reset(struct mii_softc *sc) 457 { 458 459 mii_phy_reset(sc); 460 bcm5703_load_dspcode(sc); 461 } 462 463 static void 464 brgphy_5704_reset(struct mii_softc *sc) 465 { 466 467 mii_phy_reset(sc); 468 bcm5704_load_dspcode(sc); 469 } 470 471 /* 472 * Hardware bug workaround. Do nothing since after 473 * reset the 5705 PHY would get stuck in 10/100 MII mode. 474 */ 475 476 static void 477 brgphy_5705_reset(struct mii_softc *sc) 478 { 479 } 480 481 static void 482 brgphy_5750_reset(struct mii_softc *sc) 483 { 484 mii_phy_reset(sc); 485 bcm5750_load_dspcode(sc); 486 } 487 488 /* Turn off tap power management on 5401. */ 489 static void 490 bcm5401_load_dspcode(struct mii_softc *sc) 491 { 492 static const struct { 493 int reg; 494 uint16_t val; 495 } dspcode[] = { 496 { BRGPHY_MII_AUXCTL, 0x0c20 }, 497 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, 498 { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, 499 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, 500 { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, 501 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 502 { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, 503 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 504 { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, 505 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 506 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, 507 { 0, 0 }, 508 }; 509 int i; 510 511 for (i = 0; dspcode[i].reg != 0; i++) 512 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 513 delay(40); 514 } 515 516 static void 517 bcm5411_load_dspcode(struct mii_softc *sc) 518 { 519 static const struct { 520 int reg; 521 uint16_t val; 522 } dspcode[] = { 523 { 0x1c, 0x8c23 }, 524 { 0x1c, 0x8ca3 }, 525 { 0x1c, 0x8c23 }, 526 { 0, 0 }, 527 }; 528 int i; 529 530 for (i = 0; dspcode[i].reg != 0; i++) 531 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 532 } 533 534 static void 535 bcm5703_load_dspcode(struct mii_softc *sc) 536 { 537 static const struct { 538 int reg; 539 uint16_t val; 540 } dspcode[] = { 541 { BRGPHY_MII_AUXCTL, 0x0c00 }, 542 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 543 { BRGPHY_MII_DSP_RW_PORT, 0x2aaa }, 544 { 0, 0 }, 545 }; 546 int i; 547 548 for (i = 0; dspcode[i].reg != 0; i++) 549 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 550 } 551 552 static void 553 bcm5704_load_dspcode(struct mii_softc *sc) 554 { 555 static const struct { 556 int reg; 557 uint16_t val; 558 } dspcode[] = { 559 { 0x1c, 0x8d68 }, 560 { 0x1c, 0x8d68 }, 561 { 0, 0 }, 562 }; 563 int i; 564 565 for (i = 0; dspcode[i].reg != 0; i++) 566 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 567 } 568 569 static void 570 bcm5750_load_dspcode(struct mii_softc *sc) 571 { 572 static const struct { 573 int reg; 574 uint16_t val; 575 } dspcode[] = { 576 { BRGPHY_MII_AUXCTL, 0x0c00 }, 577 { BRGPHY_MII_DSP_ADDR_REG, 0x000a }, 578 { BRGPHY_MII_DSP_RW_PORT, 0x310b }, 579 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 580 { BRGPHY_MII_DSP_RW_PORT, 0x9506 }, 581 { BRGPHY_MII_DSP_ADDR_REG, 0x401f }, 582 { BRGPHY_MII_DSP_RW_PORT, 0x14e2 }, 583 { BRGPHY_MII_AUXCTL, 0x0400 }, 584 { 0, 0 }, 585 }; 586 int i; 587 588 for (i = 0; dspcode[i].reg != 0; i++) 589 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 590 } 591
Indexes created Mon Sep 29 21:09:56 GMT 2025