brgphy.c revision 1.6.4.2
1 /* $NetBSD: brgphy.c,v 1.6.4.2 2003/01/28 06:25:41 jmc 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 1.6.4.2 2003/01/28 06:25:41 jmc 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/malloc.h> 84 #include <sys/socket.h> 85 #include <sys/errno.h> 86 87 #include <net/if.h> 88 #include <net/if_media.h> 89 90 #include <dev/mii/mii.h> 91 #include <dev/mii/miivar.h> 92 #include <dev/mii/miidevs.h> 93 94 #include <dev/mii/brgphyreg.h> 95 96 int brgphymatch(struct device *, struct cfdata *, void *); 97 void brgphyattach(struct device *, struct device *, void *); 98 99 struct cfattach brgphy_ca = { 100 sizeof(struct mii_softc), brgphymatch, brgphyattach, 101 mii_phy_detach, mii_phy_activate 102 }; 103 104 int brgphy_service(struct mii_softc *, struct mii_data *, int); 105 void brgphy_status(struct mii_softc *); 106 107 void brgphy_5401_reset(struct mii_softc *); 108 void brgphy_5411_reset(struct mii_softc *); 109 void brgphy_5703_reset(struct mii_softc *); 110 void brgphy_5704_reset(struct mii_softc *); 111 112 const struct mii_phy_funcs brgphy_funcs = { 113 brgphy_service, brgphy_status, mii_phy_reset, 114 }; 115 116 const struct mii_phy_funcs brgphy_5401_funcs = { 117 brgphy_service, brgphy_status, brgphy_5401_reset, 118 }; 119 120 const struct mii_phy_funcs brgphy_5411_funcs = { 121 brgphy_service, brgphy_status, brgphy_5411_reset, 122 }; 123 124 const struct mii_phy_funcs brgphy_5703_funcs = { 125 brgphy_service, brgphy_status, brgphy_5703_reset, 126 }; 127 128 const struct mii_phy_funcs brgphy_5704_funcs = { 129 brgphy_service, brgphy_status, brgphy_5704_reset, 130 }; 131 132 133 const struct mii_phydesc brgphys[] = { 134 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 135 MII_STR_BROADCOM_BCM5400 }, 136 137 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 138 MII_STR_BROADCOM_BCM5401 }, 139 140 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 141 MII_STR_BROADCOM_BCM5411 }, 142 143 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421, 144 MII_STR_BROADCOM_BCM5421 }, 145 146 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 147 MII_STR_BROADCOM_BCM5701 }, 148 149 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5703, 150 MII_STR_BROADCOM_BCM5703 }, 151 152 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5704, 153 MII_STR_BROADCOM_BCM5704 }, 154 155 { 0, 0, 156 NULL }, 157 }; 158 159 static void bcm5401_load_dspcode(struct mii_softc *); 160 static void bcm5411_load_dspcode(struct mii_softc *); 161 static void bcm5703_load_dspcode(struct mii_softc *); 162 static void bcm5704_load_dspcode(struct mii_softc *); 163 164 int 165 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 166 { 167 struct mii_attach_args *ma = aux; 168 169 if (mii_phy_match(ma, brgphys) != NULL) 170 return (10); 171 172 return (0); 173 } 174 175 void 176 brgphyattach(struct device *parent, struct device *self, void *aux) 177 { 178 struct mii_softc *sc = (struct mii_softc *)self; 179 struct mii_attach_args *ma = aux; 180 struct mii_data *mii = ma->mii_data; 181 const struct mii_phydesc *mpd; 182 183 mpd = mii_phy_match(ma, brgphys); 184 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 185 186 sc->mii_inst = mii->mii_instance; 187 sc->mii_phy = ma->mii_phyno; 188 sc->mii_pdata = mii; 189 sc->mii_flags = ma->mii_flags; 190 sc->mii_anegticks = 5; 191 192 switch (MII_MODEL(ma->mii_id2)) { 193 case MII_MODEL_BROADCOM_BCM5400: 194 sc->mii_funcs = &brgphy_5401_funcs; 195 printf("%s: using BCM5401 DSP patch\n", sc->mii_dev.dv_xname); 196 break; 197 198 case MII_MODEL_BROADCOM_BCM5401: 199 if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { 200 sc->mii_funcs = &brgphy_5401_funcs; 201 printf("%s: using BCM5401 DSP patch\n", 202 sc->mii_dev.dv_xname); 203 } else 204 sc->mii_funcs = &brgphy_funcs; 205 break; 206 207 case MII_MODEL_BROADCOM_BCM5411: 208 sc->mii_funcs = &brgphy_5411_funcs; 209 printf("%s: using BCM5411 DSP patch\n", 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 printf("%s: using BCM5703 DSP patch\n", sc->mii_dev.dv_xname); 216 break; 217 #endif 218 219 case MII_MODEL_BROADCOM_BCM5704: 220 sc->mii_funcs = &brgphy_5704_funcs; 221 printf("%s: using BCM5704 DSP patch\n", sc->mii_dev.dv_xname); 222 break; 223 224 default: 225 sc->mii_funcs = &brgphy_funcs; 226 break; 227 } 228 229 PHY_RESET(sc); 230 231 sc->mii_capabilities = 232 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 233 if (sc->mii_capabilities & BMSR_EXTSTAT) 234 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 235 236 printf("%s: ", sc->mii_dev.dv_xname); 237 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 238 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 239 printf("no media present"); 240 else 241 mii_phy_add_media(sc); 242 printf("\n"); 243 } 244 245 int 246 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 247 { 248 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 249 int reg; 250 251 switch (cmd) { 252 case MII_POLLSTAT: 253 /* 254 * If we're not polling our PHY instance, just return. 255 */ 256 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 257 return (0); 258 break; 259 260 case MII_MEDIACHG: 261 /* 262 * If the media indicates a different PHY instance, 263 * isolate ourselves. 264 */ 265 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 266 reg = PHY_READ(sc, MII_BMCR); 267 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 268 return (0); 269 } 270 271 /* 272 * If the interface is not up, don't do anything. 273 */ 274 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 275 break; 276 277 mii_phy_reset(sc); /* XXX hardware bug work-around */ 278 mii_phy_setmedia(sc); 279 break; 280 281 case MII_TICK: 282 /* 283 * If we're not currently selected, just return. 284 */ 285 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 286 return (0); 287 288 if (mii_phy_tick(sc) == EJUSTRETURN) 289 return (0); 290 break; 291 292 case MII_DOWN: 293 mii_phy_down(sc); 294 return (0); 295 } 296 297 /* Update the media status. */ 298 mii_phy_status(sc); 299 300 /* 301 * Callback if something changed. Note that we need to poke 302 * the DSP on the Broadcom PHYs if the media changes. 303 */ 304 if (sc->mii_media_active != mii->mii_media_active || 305 sc->mii_media_status != mii->mii_media_status || 306 cmd == MII_MEDIACHG) { 307 mii_phy_update(sc, cmd); 308 if (sc->mii_funcs == &brgphy_5401_funcs) 309 bcm5401_load_dspcode(sc); 310 else if (sc->mii_funcs == &brgphy_5411_funcs) 311 bcm5411_load_dspcode(sc); 312 } 313 return (0); 314 } 315 316 void 317 brgphy_status(struct mii_softc *sc) 318 { 319 struct mii_data *mii = sc->mii_pdata; 320 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 321 int bmcr, auxsts, gtsr; 322 323 mii->mii_media_status = IFM_AVALID; 324 mii->mii_media_active = IFM_ETHER; 325 326 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 327 328 if (auxsts & BRGPHY_AUXSTS_LINK) 329 mii->mii_media_status |= IFM_ACTIVE; 330 331 bmcr = PHY_READ(sc, MII_BMCR); 332 if (bmcr & BMCR_ISO) { 333 mii->mii_media_active |= IFM_NONE; 334 mii->mii_media_status = 0; 335 return; 336 } 337 338 if (bmcr & BMCR_LOOP) 339 mii->mii_media_active |= IFM_LOOP; 340 341 if (bmcr & BMCR_AUTOEN) { 342 /* 343 * The media status bits are only valid of autonegotiation 344 * has completed (or it's disabled). 345 */ 346 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 347 /* Erg, still trying, I guess... */ 348 mii->mii_media_active |= IFM_NONE; 349 return; 350 } 351 352 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 353 case BRGPHY_RES_1000FD: 354 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 355 gtsr = PHY_READ(sc, MII_100T2SR); 356 if (gtsr & GTSR_MS_RES) 357 mii->mii_media_active |= IFM_ETH_MASTER; 358 break; 359 360 case BRGPHY_RES_1000HD: 361 mii->mii_media_active |= IFM_1000_T; 362 gtsr = PHY_READ(sc, MII_100T2SR); 363 if (gtsr & GTSR_MS_RES) 364 mii->mii_media_active |= IFM_ETH_MASTER; 365 break; 366 367 case BRGPHY_RES_100FD: 368 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 369 break; 370 371 case BRGPHY_RES_100T4: 372 mii->mii_media_active |= IFM_100_T4; 373 break; 374 375 case BRGPHY_RES_100HD: 376 mii->mii_media_active |= IFM_100_TX; 377 break; 378 379 case BRGPHY_RES_10FD: 380 mii->mii_media_active |= IFM_10_T|IFM_FDX; 381 break; 382 383 case BRGPHY_RES_10HD: 384 mii->mii_media_active |= IFM_10_T; 385 break; 386 387 default: 388 mii->mii_media_active |= IFM_NONE; 389 mii->mii_media_status = 0; 390 } 391 } else 392 mii->mii_media_active = ife->ifm_media; 393 } 394 395 void 396 brgphy_5401_reset(struct mii_softc *sc) 397 { 398 399 mii_phy_reset(sc); 400 bcm5401_load_dspcode(sc); 401 } 402 403 void 404 brgphy_5411_reset(struct mii_softc *sc) 405 { 406 407 mii_phy_reset(sc); 408 bcm5411_load_dspcode(sc); 409 } 410 411 412 void 413 brgphy_5703_reset(struct mii_softc *sc) 414 { 415 416 mii_phy_reset(sc); 417 bcm5703_load_dspcode(sc); 418 } 419 420 void 421 brgphy_5704_reset(struct mii_softc *sc) 422 { 423 424 mii_phy_reset(sc); 425 bcm5704_load_dspcode(sc); 426 } 427 428 /* Turn off tap power management on 5401. */ 429 static void 430 bcm5401_load_dspcode(struct mii_softc *sc) 431 { 432 static const struct { 433 int reg; 434 uint16_t val; 435 } dspcode[] = { 436 { BRGPHY_MII_AUXCTL, 0x0c20 }, 437 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, 438 { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, 439 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, 440 { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, 441 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 442 { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, 443 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 444 { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, 445 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 446 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, 447 { 0, 0 }, 448 }; 449 int i; 450 451 for (i = 0; dspcode[i].reg != 0; i++) 452 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 453 delay(40); 454 } 455 456 static void 457 bcm5411_load_dspcode(struct mii_softc *sc) 458 { 459 static const struct { 460 int reg; 461 uint16_t val; 462 } dspcode[] = { 463 { 0x1c, 0x8c23 }, 464 { 0x1c, 0x8ca3 }, 465 { 0x1c, 0x8c23 }, 466 { 0, 0 }, 467 }; 468 int i; 469 470 for (i = 0; dspcode[i].reg != 0; i++) 471 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 472 } 473 474 static void 475 bcm5703_load_dspcode(struct mii_softc *sc) 476 { 477 static const struct { 478 int reg; 479 uint16_t val; 480 } dspcode[] = { 481 { BRGPHY_MII_AUXCTL, 0x0c00 }, 482 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 483 { BRGPHY_MII_DSP_RW_PORT, 0x2aaa }, 484 { 0, 0 }, 485 }; 486 int i; 487 488 for (i = 0; dspcode[i].reg != 0; i++) 489 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 490 } 491 492 static void 493 bcm5704_load_dspcode(struct mii_softc *sc) 494 { 495 static const struct { 496 int reg; 497 uint16_t val; 498 } dspcode[] = { 499 { 0x1c, 0x8d68 }, 500 { 0x1c, 0x8d68 }, 501 { 0, 0 }, 502 }; 503 int i; 504 505 for (i = 0; dspcode[i].reg != 0; i++) 506 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 507 } 508
Indexes created Mon Oct 20 11:09:49 GMT 2025