brgphy.c revision 1.21
1 /* $NetBSD: brgphy.c,v 1.21 2004/08/23 06:16:06 thorpej 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 1.21 2004/08/23 06:16:06 thorpej 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 *); 109 110 static const struct mii_phy_funcs brgphy_funcs = { 111 brgphy_service, brgphy_status, mii_phy_reset, 112 }; 113 114 static const struct mii_phy_funcs brgphy_5401_funcs = { 115 brgphy_service, brgphy_status, brgphy_5401_reset, 116 }; 117 118 static const struct mii_phy_funcs brgphy_5411_funcs = { 119 brgphy_service, brgphy_status, brgphy_5411_reset, 120 }; 121 122 static const struct mii_phy_funcs brgphy_5703_funcs = { 123 brgphy_service, brgphy_status, brgphy_5703_reset, 124 }; 125 126 static const struct mii_phy_funcs brgphy_5704_funcs = { 127 brgphy_service, brgphy_status, brgphy_5704_reset, 128 }; 129 130 static const struct mii_phy_funcs brgphy_5705_funcs = { 131 brgphy_service, brgphy_status, brgphy_5705_reset, 132 }; 133 134 135 static const struct mii_phydesc brgphys[] = { 136 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 137 MII_STR_BROADCOM_BCM5400 }, 138 139 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 140 MII_STR_BROADCOM_BCM5401 }, 141 142 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 143 MII_STR_BROADCOM_BCM5411 }, 144 145 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421, 146 MII_STR_BROADCOM_BCM5421 }, 147 148 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 149 MII_STR_BROADCOM_BCM5701 }, 150 151 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5703, 152 MII_STR_BROADCOM_BCM5703 }, 153 154 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5704, 155 MII_STR_BROADCOM_BCM5704 }, 156 157 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5705, 158 MII_STR_BROADCOM_BCM5705 }, 159 160 { 0, 0, 161 NULL }, 162 }; 163 164 static void bcm5401_load_dspcode(struct mii_softc *); 165 static void bcm5411_load_dspcode(struct mii_softc *); 166 static void bcm5703_load_dspcode(struct mii_softc *); 167 static void bcm5704_load_dspcode(struct mii_softc *); 168 169 static int 170 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 171 { 172 struct mii_attach_args *ma = aux; 173 174 if (mii_phy_match(ma, brgphys) != NULL) 175 return (10); 176 177 return (0); 178 } 179 180 static void 181 brgphyattach(struct device *parent, struct device *self, void *aux) 182 { 183 struct mii_softc *sc = (struct mii_softc *)self; 184 struct mii_attach_args *ma = aux; 185 struct mii_data *mii = ma->mii_data; 186 const struct mii_phydesc *mpd; 187 188 mpd = mii_phy_match(ma, brgphys); 189 aprint_naive(": Media interface\n"); 190 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 191 192 sc->mii_inst = mii->mii_instance; 193 sc->mii_phy = ma->mii_phyno; 194 sc->mii_pdata = mii; 195 sc->mii_flags = ma->mii_flags; 196 sc->mii_anegticks = 5; 197 198 switch (MII_MODEL(ma->mii_id2)) { 199 case MII_MODEL_BROADCOM_BCM5400: 200 sc->mii_funcs = &brgphy_5401_funcs; 201 aprint_normal("%s: using BCM5401 DSP patch\n", 202 sc->mii_dev.dv_xname); 203 break; 204 205 case MII_MODEL_BROADCOM_BCM5401: 206 if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { 207 sc->mii_funcs = &brgphy_5401_funcs; 208 aprint_normal("%s: using BCM5401 DSP patch\n", 209 sc->mii_dev.dv_xname); 210 } else 211 sc->mii_funcs = &brgphy_funcs; 212 break; 213 214 case MII_MODEL_BROADCOM_BCM5411: 215 sc->mii_funcs = &brgphy_5411_funcs; 216 aprint_normal("%s: using BCM5411 DSP patch\n", 217 sc->mii_dev.dv_xname); 218 break; 219 220 #ifdef notyet /* unverified, untested */ 221 case MII_MODEL_BROADCOM_BCM5703: 222 sc->mii_funcs = &brgphy_5703_funcs; 223 aprint_normal("%s: using BCM5703 DSP patch\n", 224 sc->mii_dev.dv_xname); 225 break; 226 #endif 227 228 case MII_MODEL_BROADCOM_BCM5704: 229 sc->mii_funcs = &brgphy_5704_funcs; 230 aprint_normal("%s: using BCM5704 DSP patch\n", 231 sc->mii_dev.dv_xname); 232 break; 233 234 case MII_MODEL_BROADCOM_BCM5705: 235 sc->mii_funcs = &brgphy_5705_funcs; 236 break; 237 238 default: 239 sc->mii_funcs = &brgphy_funcs; 240 break; 241 } 242 243 PHY_RESET(sc); 244 245 sc->mii_capabilities = 246 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 247 if (sc->mii_capabilities & BMSR_EXTSTAT) 248 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 249 250 aprint_normal("%s: ", sc->mii_dev.dv_xname); 251 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 252 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 253 aprint_error("no media present"); 254 else 255 mii_phy_add_media(sc); 256 aprint_normal("\n"); 257 } 258 259 static int 260 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 261 { 262 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 263 int reg; 264 265 switch (cmd) { 266 case MII_POLLSTAT: 267 /* 268 * If we're not polling our PHY instance, just return. 269 */ 270 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 271 return (0); 272 break; 273 274 case MII_MEDIACHG: 275 /* 276 * If the media indicates a different PHY instance, 277 * isolate ourselves. 278 */ 279 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 280 reg = PHY_READ(sc, MII_BMCR); 281 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 282 return (0); 283 } 284 285 /* 286 * If the interface is not up, don't do anything. 287 */ 288 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 289 break; 290 291 if (sc->mii_funcs != &brgphy_5705_funcs) 292 mii_phy_reset(sc); /* XXX hardware bug work-around */ 293 mii_phy_setmedia(sc); 294 break; 295 296 case MII_TICK: 297 /* 298 * If we're not currently selected, just return. 299 */ 300 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 301 return (0); 302 303 if (mii_phy_tick(sc) == EJUSTRETURN) 304 return (0); 305 break; 306 307 case MII_DOWN: 308 mii_phy_down(sc); 309 return (0); 310 } 311 312 /* Update the media status. */ 313 mii_phy_status(sc); 314 315 /* 316 * Callback if something changed. Note that we need to poke 317 * the DSP on the Broadcom PHYs if the media changes. 318 */ 319 if (sc->mii_media_active != mii->mii_media_active || 320 sc->mii_media_status != mii->mii_media_status || 321 cmd == MII_MEDIACHG) { 322 mii_phy_update(sc, cmd); 323 if (sc->mii_funcs == &brgphy_5401_funcs) 324 bcm5401_load_dspcode(sc); 325 else if (sc->mii_funcs == &brgphy_5411_funcs) 326 bcm5411_load_dspcode(sc); 327 } 328 return (0); 329 } 330 331 static void 332 brgphy_status(struct mii_softc *sc) 333 { 334 struct mii_data *mii = sc->mii_pdata; 335 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 336 int bmcr, auxsts, gtsr; 337 338 mii->mii_media_status = IFM_AVALID; 339 mii->mii_media_active = IFM_ETHER; 340 341 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 342 343 if (auxsts & BRGPHY_AUXSTS_LINK) 344 mii->mii_media_status |= IFM_ACTIVE; 345 346 bmcr = PHY_READ(sc, MII_BMCR); 347 if (bmcr & BMCR_ISO) { 348 mii->mii_media_active |= IFM_NONE; 349 mii->mii_media_status = 0; 350 return; 351 } 352 353 if (bmcr & BMCR_LOOP) 354 mii->mii_media_active |= IFM_LOOP; 355 356 if (bmcr & BMCR_AUTOEN) { 357 /* 358 * The media status bits are only valid of autonegotiation 359 * has completed (or it's disabled). 360 */ 361 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 362 /* Erg, still trying, I guess... */ 363 mii->mii_media_active |= IFM_NONE; 364 return; 365 } 366 367 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 368 case BRGPHY_RES_1000FD: 369 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 370 gtsr = PHY_READ(sc, MII_100T2SR); 371 if (gtsr & GTSR_MS_RES) 372 mii->mii_media_active |= IFM_ETH_MASTER; 373 break; 374 375 case BRGPHY_RES_1000HD: 376 mii->mii_media_active |= IFM_1000_T; 377 gtsr = PHY_READ(sc, MII_100T2SR); 378 if (gtsr & GTSR_MS_RES) 379 mii->mii_media_active |= IFM_ETH_MASTER; 380 break; 381 382 case BRGPHY_RES_100FD: 383 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 384 break; 385 386 case BRGPHY_RES_100T4: 387 mii->mii_media_active |= IFM_100_T4; 388 break; 389 390 case BRGPHY_RES_100HD: 391 mii->mii_media_active |= IFM_100_TX; 392 break; 393 394 case BRGPHY_RES_10FD: 395 mii->mii_media_active |= IFM_10_T|IFM_FDX; 396 break; 397 398 case BRGPHY_RES_10HD: 399 mii->mii_media_active |= IFM_10_T; 400 break; 401 402 default: 403 mii->mii_media_active |= IFM_NONE; 404 mii->mii_media_status = 0; 405 } 406 if (mii->mii_media_active & IFM_FDX) 407 mii->mii_media_active |= mii_phy_flowstatus(sc); 408 } else 409 mii->mii_media_active = ife->ifm_media; 410 } 411 412 static void 413 brgphy_5401_reset(struct mii_softc *sc) 414 { 415 416 mii_phy_reset(sc); 417 bcm5401_load_dspcode(sc); 418 } 419 420 static void 421 brgphy_5411_reset(struct mii_softc *sc) 422 { 423 424 mii_phy_reset(sc); 425 bcm5411_load_dspcode(sc); 426 } 427 428 429 static void 430 brgphy_5703_reset(struct mii_softc *sc) 431 { 432 433 mii_phy_reset(sc); 434 bcm5703_load_dspcode(sc); 435 } 436 437 static void 438 brgphy_5704_reset(struct mii_softc *sc) 439 { 440 441 mii_phy_reset(sc); 442 bcm5704_load_dspcode(sc); 443 } 444 445 /* 446 * Hardware bug workaround. Do nothing since after 447 * reset the 5705 PHY would get stuck in 10/100 MII mode. 448 */ 449 450 static void 451 brgphy_5705_reset(struct mii_softc *sc) 452 { 453 } 454 455 /* Turn off tap power management on 5401. */ 456 static void 457 bcm5401_load_dspcode(struct mii_softc *sc) 458 { 459 static const struct { 460 int reg; 461 uint16_t val; 462 } dspcode[] = { 463 { BRGPHY_MII_AUXCTL, 0x0c20 }, 464 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, 465 { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, 466 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, 467 { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, 468 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 469 { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, 470 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 471 { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, 472 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 473 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, 474 { 0, 0 }, 475 }; 476 int i; 477 478 for (i = 0; dspcode[i].reg != 0; i++) 479 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 480 delay(40); 481 } 482 483 static void 484 bcm5411_load_dspcode(struct mii_softc *sc) 485 { 486 static const struct { 487 int reg; 488 uint16_t val; 489 } dspcode[] = { 490 { 0x1c, 0x8c23 }, 491 { 0x1c, 0x8ca3 }, 492 { 0x1c, 0x8c23 }, 493 { 0, 0 }, 494 }; 495 int i; 496 497 for (i = 0; dspcode[i].reg != 0; i++) 498 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 499 } 500 501 static void 502 bcm5703_load_dspcode(struct mii_softc *sc) 503 { 504 static const struct { 505 int reg; 506 uint16_t val; 507 } dspcode[] = { 508 { BRGPHY_MII_AUXCTL, 0x0c00 }, 509 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 510 { BRGPHY_MII_DSP_RW_PORT, 0x2aaa }, 511 { 0, 0 }, 512 }; 513 int i; 514 515 for (i = 0; dspcode[i].reg != 0; i++) 516 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 517 } 518 519 static void 520 bcm5704_load_dspcode(struct mii_softc *sc) 521 { 522 static const struct { 523 int reg; 524 uint16_t val; 525 } dspcode[] = { 526 { 0x1c, 0x8d68 }, 527 { 0x1c, 0x8d68 }, 528 { 0, 0 }, 529 }; 530 int i; 531 532 for (i = 0; dspcode[i].reg != 0; i++) 533 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 534 } 535
Indexes created Fri Sep 26 20:09:58 GMT 2025