brgphy.c revision 1.16
1 /* $NetBSD: brgphy.c,v 1.16 2003/01/16 20:02:05 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 1.16 2003/01/16 20:02:05 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 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 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 182 183 sc->mii_inst = mii->mii_instance; 184 sc->mii_phy = ma->mii_phyno; 185 sc->mii_pdata = mii; 186 sc->mii_flags = ma->mii_flags; 187 sc->mii_anegticks = 5; 188 189 switch (MII_MODEL(ma->mii_id2)) { 190 case MII_MODEL_BROADCOM_BCM5400: 191 sc->mii_funcs = &brgphy_5401_funcs; 192 printf("%s: using BCM5401 DSP patch\n", sc->mii_dev.dv_xname); 193 break; 194 195 case MII_MODEL_BROADCOM_BCM5401: 196 if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { 197 sc->mii_funcs = &brgphy_5401_funcs; 198 printf("%s: using BCM5401 DSP patch\n", 199 sc->mii_dev.dv_xname); 200 } else 201 sc->mii_funcs = &brgphy_funcs; 202 break; 203 204 case MII_MODEL_BROADCOM_BCM5411: 205 sc->mii_funcs = &brgphy_5411_funcs; 206 printf("%s: using BCM5411 DSP patch\n", sc->mii_dev.dv_xname); 207 break; 208 209 #ifdef notyet /* unverified, untested */ 210 case MII_MODEL_BROADCOM_BCM5703: 211 sc->mii_funcs = &brgphy_5703_funcs; 212 printf("%s: using BCM5703 DSP patch\n", sc->mii_dev.dv_xname); 213 break; 214 #endif 215 216 case MII_MODEL_BROADCOM_BCM5704: 217 sc->mii_funcs = &brgphy_5704_funcs; 218 printf("%s: using BCM5704 DSP patch\n", sc->mii_dev.dv_xname); 219 break; 220 221 default: 222 sc->mii_funcs = &brgphy_funcs; 223 break; 224 } 225 226 PHY_RESET(sc); 227 228 sc->mii_capabilities = 229 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 230 if (sc->mii_capabilities & BMSR_EXTSTAT) 231 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 232 233 printf("%s: ", sc->mii_dev.dv_xname); 234 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 235 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 236 printf("no media present"); 237 else 238 mii_phy_add_media(sc); 239 printf("\n"); 240 } 241 242 int 243 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 244 { 245 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 246 int reg; 247 248 switch (cmd) { 249 case MII_POLLSTAT: 250 /* 251 * If we're not polling our PHY instance, just return. 252 */ 253 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 254 return (0); 255 break; 256 257 case MII_MEDIACHG: 258 /* 259 * If the media indicates a different PHY instance, 260 * isolate ourselves. 261 */ 262 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 263 reg = PHY_READ(sc, MII_BMCR); 264 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 265 return (0); 266 } 267 268 /* 269 * If the interface is not up, don't do anything. 270 */ 271 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 272 break; 273 274 mii_phy_reset(sc); /* XXX hardware bug work-around */ 275 mii_phy_setmedia(sc); 276 break; 277 278 case MII_TICK: 279 /* 280 * If we're not currently selected, just return. 281 */ 282 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 283 return (0); 284 285 if (mii_phy_tick(sc) == EJUSTRETURN) 286 return (0); 287 break; 288 289 case MII_DOWN: 290 mii_phy_down(sc); 291 return (0); 292 } 293 294 /* Update the media status. */ 295 mii_phy_status(sc); 296 297 /* 298 * Callback if something changed. Note that we need to poke 299 * the DSP on the Broadcom PHYs if the media changes. 300 */ 301 if (sc->mii_media_active != mii->mii_media_active || 302 sc->mii_media_status != mii->mii_media_status || 303 cmd == MII_MEDIACHG) { 304 mii_phy_update(sc, cmd); 305 if (sc->mii_funcs == &brgphy_5401_funcs) 306 bcm5401_load_dspcode(sc); 307 else if (sc->mii_funcs == &brgphy_5411_funcs) 308 bcm5411_load_dspcode(sc); 309 } 310 return (0); 311 } 312 313 void 314 brgphy_status(struct mii_softc *sc) 315 { 316 struct mii_data *mii = sc->mii_pdata; 317 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 318 int bmcr, auxsts, gtsr; 319 320 mii->mii_media_status = IFM_AVALID; 321 mii->mii_media_active = IFM_ETHER; 322 323 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 324 325 if (auxsts & BRGPHY_AUXSTS_LINK) 326 mii->mii_media_status |= IFM_ACTIVE; 327 328 bmcr = PHY_READ(sc, MII_BMCR); 329 if (bmcr & BMCR_ISO) { 330 mii->mii_media_active |= IFM_NONE; 331 mii->mii_media_status = 0; 332 return; 333 } 334 335 if (bmcr & BMCR_LOOP) 336 mii->mii_media_active |= IFM_LOOP; 337 338 if (bmcr & BMCR_AUTOEN) { 339 /* 340 * The media status bits are only valid of autonegotiation 341 * has completed (or it's disabled). 342 */ 343 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 344 /* Erg, still trying, I guess... */ 345 mii->mii_media_active |= IFM_NONE; 346 return; 347 } 348 349 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 350 case BRGPHY_RES_1000FD: 351 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 352 gtsr = PHY_READ(sc, MII_100T2SR); 353 if (gtsr & GTSR_MS_RES) 354 mii->mii_media_active |= IFM_ETH_MASTER; 355 break; 356 357 case BRGPHY_RES_1000HD: 358 mii->mii_media_active |= IFM_1000_T; 359 gtsr = PHY_READ(sc, MII_100T2SR); 360 if (gtsr & GTSR_MS_RES) 361 mii->mii_media_active |= IFM_ETH_MASTER; 362 break; 363 364 case BRGPHY_RES_100FD: 365 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 366 break; 367 368 case BRGPHY_RES_100T4: 369 mii->mii_media_active |= IFM_100_T4; 370 break; 371 372 case BRGPHY_RES_100HD: 373 mii->mii_media_active |= IFM_100_TX; 374 break; 375 376 case BRGPHY_RES_10FD: 377 mii->mii_media_active |= IFM_10_T|IFM_FDX; 378 break; 379 380 case BRGPHY_RES_10HD: 381 mii->mii_media_active |= IFM_10_T; 382 break; 383 384 default: 385 mii->mii_media_active |= IFM_NONE; 386 mii->mii_media_status = 0; 387 } 388 } else 389 mii->mii_media_active = ife->ifm_media; 390 } 391 392 void 393 brgphy_5401_reset(struct mii_softc *sc) 394 { 395 396 mii_phy_reset(sc); 397 bcm5401_load_dspcode(sc); 398 } 399 400 void 401 brgphy_5411_reset(struct mii_softc *sc) 402 { 403 404 mii_phy_reset(sc); 405 bcm5411_load_dspcode(sc); 406 } 407 408 409 void 410 brgphy_5703_reset(struct mii_softc *sc) 411 { 412 413 mii_phy_reset(sc); 414 bcm5703_load_dspcode(sc); 415 } 416 417 void 418 brgphy_5704_reset(struct mii_softc *sc) 419 { 420 421 mii_phy_reset(sc); 422 bcm5704_load_dspcode(sc); 423 } 424 425 /* Turn off tap power management on 5401. */ 426 static void 427 bcm5401_load_dspcode(struct mii_softc *sc) 428 { 429 static const struct { 430 int reg; 431 uint16_t val; 432 } dspcode[] = { 433 { BRGPHY_MII_AUXCTL, 0x0c20 }, 434 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, 435 { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, 436 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, 437 { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, 438 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 439 { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, 440 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 441 { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, 442 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 443 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, 444 { 0, 0 }, 445 }; 446 int i; 447 448 for (i = 0; dspcode[i].reg != 0; i++) 449 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 450 delay(40); 451 } 452 453 static void 454 bcm5411_load_dspcode(struct mii_softc *sc) 455 { 456 static const struct { 457 int reg; 458 uint16_t val; 459 } dspcode[] = { 460 { 0x1c, 0x8c23 }, 461 { 0x1c, 0x8ca3 }, 462 { 0x1c, 0x8c23 }, 463 { 0, 0 }, 464 }; 465 int i; 466 467 for (i = 0; dspcode[i].reg != 0; i++) 468 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 469 } 470 471 static void 472 bcm5703_load_dspcode(struct mii_softc *sc) 473 { 474 static const struct { 475 int reg; 476 uint16_t val; 477 } dspcode[] = { 478 { BRGPHY_MII_AUXCTL, 0x0c00 }, 479 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 480 { BRGPHY_MII_DSP_RW_PORT, 0x2aaa }, 481 { 0, 0 }, 482 }; 483 int i; 484 485 for (i = 0; dspcode[i].reg != 0; i++) 486 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 487 } 488 489 static void 490 bcm5704_load_dspcode(struct mii_softc *sc) 491 { 492 static const struct { 493 int reg; 494 uint16_t val; 495 } dspcode[] = { 496 { 0x1c, 0x8d68 }, 497 { 0x1c, 0x8d68 }, 498 { 0, 0 }, 499 }; 500 int i; 501 502 for (i = 0; dspcode[i].reg != 0; i++) 503 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 504 } 505
Indexes created Thu Sep 25 16:09:42 GMT 2025