brgphy.c revision 1.17
1 /* $NetBSD: brgphy.c,v 1.17 2003/04/29 01:49:33 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 1.17 2003/04/29 01:49:33 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 int brgphymatch(struct device *, struct cfdata *, void *); 96 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 int brgphy_service(struct mii_softc *, struct mii_data *, int); 102 void brgphy_status(struct mii_softc *); 103 104 void brgphy_5401_reset(struct mii_softc *); 105 void brgphy_5411_reset(struct mii_softc *); 106 void brgphy_5703_reset(struct mii_softc *); 107 void brgphy_5704_reset(struct mii_softc *); 108 109 const struct mii_phy_funcs brgphy_funcs = { 110 brgphy_service, brgphy_status, mii_phy_reset, 111 }; 112 113 const struct mii_phy_funcs brgphy_5401_funcs = { 114 brgphy_service, brgphy_status, brgphy_5401_reset, 115 }; 116 117 const struct mii_phy_funcs brgphy_5411_funcs = { 118 brgphy_service, brgphy_status, brgphy_5411_reset, 119 }; 120 121 const struct mii_phy_funcs brgphy_5703_funcs = { 122 brgphy_service, brgphy_status, brgphy_5703_reset, 123 }; 124 125 const struct mii_phy_funcs brgphy_5704_funcs = { 126 brgphy_service, brgphy_status, brgphy_5704_reset, 127 }; 128 129 130 const struct mii_phydesc brgphys[] = { 131 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 132 MII_STR_BROADCOM_BCM5400 }, 133 134 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 135 MII_STR_BROADCOM_BCM5401 }, 136 137 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 138 MII_STR_BROADCOM_BCM5411 }, 139 140 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421, 141 MII_STR_BROADCOM_BCM5421 }, 142 143 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 144 MII_STR_BROADCOM_BCM5701 }, 145 146 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5703, 147 MII_STR_BROADCOM_BCM5703 }, 148 149 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5704, 150 MII_STR_BROADCOM_BCM5704 }, 151 152 { 0, 0, 153 NULL }, 154 }; 155 156 static void bcm5401_load_dspcode(struct mii_softc *); 157 static void bcm5411_load_dspcode(struct mii_softc *); 158 static void bcm5703_load_dspcode(struct mii_softc *); 159 static void bcm5704_load_dspcode(struct mii_softc *); 160 161 int 162 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 163 { 164 struct mii_attach_args *ma = aux; 165 166 if (mii_phy_match(ma, brgphys) != NULL) 167 return (10); 168 169 return (0); 170 } 171 172 void 173 brgphyattach(struct device *parent, struct device *self, void *aux) 174 { 175 struct mii_softc *sc = (struct mii_softc *)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, brgphys); 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_inst = mii->mii_instance; 185 sc->mii_phy = ma->mii_phyno; 186 sc->mii_pdata = mii; 187 sc->mii_flags = ma->mii_flags; 188 sc->mii_anegticks = 5; 189 190 switch (MII_MODEL(ma->mii_id2)) { 191 case MII_MODEL_BROADCOM_BCM5400: 192 sc->mii_funcs = &brgphy_5401_funcs; 193 aprint_normal("%s: using BCM5401 DSP patch\n", 194 sc->mii_dev.dv_xname); 195 break; 196 197 case MII_MODEL_BROADCOM_BCM5401: 198 if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { 199 sc->mii_funcs = &brgphy_5401_funcs; 200 aprint_normal("%s: using BCM5401 DSP patch\n", 201 sc->mii_dev.dv_xname); 202 } else 203 sc->mii_funcs = &brgphy_funcs; 204 break; 205 206 case MII_MODEL_BROADCOM_BCM5411: 207 sc->mii_funcs = &brgphy_5411_funcs; 208 aprint_normal("%s: using BCM5411 DSP patch\n", 209 sc->mii_dev.dv_xname); 210 break; 211 212 #ifdef notyet /* unverified, untested */ 213 case MII_MODEL_BROADCOM_BCM5703: 214 sc->mii_funcs = &brgphy_5703_funcs; 215 aprint_normal("%s: using BCM5703 DSP patch\n", 216 sc->mii_dev.dv_xname); 217 break; 218 #endif 219 220 case MII_MODEL_BROADCOM_BCM5704: 221 sc->mii_funcs = &brgphy_5704_funcs; 222 aprint_normal("%s: using BCM5704 DSP patch\n", 223 sc->mii_dev.dv_xname); 224 break; 225 226 default: 227 sc->mii_funcs = &brgphy_funcs; 228 break; 229 } 230 231 PHY_RESET(sc); 232 233 sc->mii_capabilities = 234 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 235 if (sc->mii_capabilities & BMSR_EXTSTAT) 236 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 237 238 aprint_normal("%s: ", sc->mii_dev.dv_xname); 239 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 240 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 241 aprint_error("no media present"); 242 else 243 mii_phy_add_media(sc); 244 aprint_normal("\n"); 245 } 246 247 int 248 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 249 { 250 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 251 int reg; 252 253 switch (cmd) { 254 case MII_POLLSTAT: 255 /* 256 * If we're not polling our PHY instance, just return. 257 */ 258 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 259 return (0); 260 break; 261 262 case MII_MEDIACHG: 263 /* 264 * If the media indicates a different PHY instance, 265 * isolate ourselves. 266 */ 267 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 268 reg = PHY_READ(sc, MII_BMCR); 269 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 270 return (0); 271 } 272 273 /* 274 * If the interface is not up, don't do anything. 275 */ 276 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 277 break; 278 279 mii_phy_reset(sc); /* XXX hardware bug work-around */ 280 mii_phy_setmedia(sc); 281 break; 282 283 case MII_TICK: 284 /* 285 * If we're not currently selected, just return. 286 */ 287 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 288 return (0); 289 290 if (mii_phy_tick(sc) == EJUSTRETURN) 291 return (0); 292 break; 293 294 case MII_DOWN: 295 mii_phy_down(sc); 296 return (0); 297 } 298 299 /* Update the media status. */ 300 mii_phy_status(sc); 301 302 /* 303 * Callback if something changed. Note that we need to poke 304 * the DSP on the Broadcom PHYs if the media changes. 305 */ 306 if (sc->mii_media_active != mii->mii_media_active || 307 sc->mii_media_status != mii->mii_media_status || 308 cmd == MII_MEDIACHG) { 309 mii_phy_update(sc, cmd); 310 if (sc->mii_funcs == &brgphy_5401_funcs) 311 bcm5401_load_dspcode(sc); 312 else if (sc->mii_funcs == &brgphy_5411_funcs) 313 bcm5411_load_dspcode(sc); 314 } 315 return (0); 316 } 317 318 void 319 brgphy_status(struct mii_softc *sc) 320 { 321 struct mii_data *mii = sc->mii_pdata; 322 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 323 int bmcr, auxsts, gtsr; 324 325 mii->mii_media_status = IFM_AVALID; 326 mii->mii_media_active = IFM_ETHER; 327 328 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 329 330 if (auxsts & BRGPHY_AUXSTS_LINK) 331 mii->mii_media_status |= IFM_ACTIVE; 332 333 bmcr = PHY_READ(sc, MII_BMCR); 334 if (bmcr & BMCR_ISO) { 335 mii->mii_media_active |= IFM_NONE; 336 mii->mii_media_status = 0; 337 return; 338 } 339 340 if (bmcr & BMCR_LOOP) 341 mii->mii_media_active |= IFM_LOOP; 342 343 if (bmcr & BMCR_AUTOEN) { 344 /* 345 * The media status bits are only valid of autonegotiation 346 * has completed (or it's disabled). 347 */ 348 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 349 /* Erg, still trying, I guess... */ 350 mii->mii_media_active |= IFM_NONE; 351 return; 352 } 353 354 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 355 case BRGPHY_RES_1000FD: 356 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 357 gtsr = PHY_READ(sc, MII_100T2SR); 358 if (gtsr & GTSR_MS_RES) 359 mii->mii_media_active |= IFM_ETH_MASTER; 360 break; 361 362 case BRGPHY_RES_1000HD: 363 mii->mii_media_active |= IFM_1000_T; 364 gtsr = PHY_READ(sc, MII_100T2SR); 365 if (gtsr & GTSR_MS_RES) 366 mii->mii_media_active |= IFM_ETH_MASTER; 367 break; 368 369 case BRGPHY_RES_100FD: 370 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 371 break; 372 373 case BRGPHY_RES_100T4: 374 mii->mii_media_active |= IFM_100_T4; 375 break; 376 377 case BRGPHY_RES_100HD: 378 mii->mii_media_active |= IFM_100_TX; 379 break; 380 381 case BRGPHY_RES_10FD: 382 mii->mii_media_active |= IFM_10_T|IFM_FDX; 383 break; 384 385 case BRGPHY_RES_10HD: 386 mii->mii_media_active |= IFM_10_T; 387 break; 388 389 default: 390 mii->mii_media_active |= IFM_NONE; 391 mii->mii_media_status = 0; 392 } 393 } else 394 mii->mii_media_active = ife->ifm_media; 395 } 396 397 void 398 brgphy_5401_reset(struct mii_softc *sc) 399 { 400 401 mii_phy_reset(sc); 402 bcm5401_load_dspcode(sc); 403 } 404 405 void 406 brgphy_5411_reset(struct mii_softc *sc) 407 { 408 409 mii_phy_reset(sc); 410 bcm5411_load_dspcode(sc); 411 } 412 413 414 void 415 brgphy_5703_reset(struct mii_softc *sc) 416 { 417 418 mii_phy_reset(sc); 419 bcm5703_load_dspcode(sc); 420 } 421 422 void 423 brgphy_5704_reset(struct mii_softc *sc) 424 { 425 426 mii_phy_reset(sc); 427 bcm5704_load_dspcode(sc); 428 } 429 430 /* Turn off tap power management on 5401. */ 431 static void 432 bcm5401_load_dspcode(struct mii_softc *sc) 433 { 434 static const struct { 435 int reg; 436 uint16_t val; 437 } dspcode[] = { 438 { BRGPHY_MII_AUXCTL, 0x0c20 }, 439 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, 440 { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, 441 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, 442 { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, 443 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 444 { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, 445 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 446 { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, 447 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 448 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, 449 { 0, 0 }, 450 }; 451 int i; 452 453 for (i = 0; dspcode[i].reg != 0; i++) 454 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 455 delay(40); 456 } 457 458 static void 459 bcm5411_load_dspcode(struct mii_softc *sc) 460 { 461 static const struct { 462 int reg; 463 uint16_t val; 464 } dspcode[] = { 465 { 0x1c, 0x8c23 }, 466 { 0x1c, 0x8ca3 }, 467 { 0x1c, 0x8c23 }, 468 { 0, 0 }, 469 }; 470 int i; 471 472 for (i = 0; dspcode[i].reg != 0; i++) 473 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 474 } 475 476 static void 477 bcm5703_load_dspcode(struct mii_softc *sc) 478 { 479 static const struct { 480 int reg; 481 uint16_t val; 482 } dspcode[] = { 483 { BRGPHY_MII_AUXCTL, 0x0c00 }, 484 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 485 { BRGPHY_MII_DSP_RW_PORT, 0x2aaa }, 486 { 0, 0 }, 487 }; 488 int i; 489 490 for (i = 0; dspcode[i].reg != 0; i++) 491 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 492 } 493 494 static void 495 bcm5704_load_dspcode(struct mii_softc *sc) 496 { 497 static const struct { 498 int reg; 499 uint16_t val; 500 } dspcode[] = { 501 { 0x1c, 0x8d68 }, 502 { 0x1c, 0x8d68 }, 503 { 0, 0 }, 504 }; 505 int i; 506 507 for (i = 0; dspcode[i].reg != 0; i++) 508 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 509 } 510
Indexes created Fri Sep 26 20:09:58 GMT 2025