brgphy.c revision 1.10
1 /* $NetBSD: brgphy.c,v 1.10 2002/07/13 01:23:27 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 1.10 2002/07/13 01:23:27 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 struct cfattach brgphy_ca = { 99 sizeof(struct mii_softc), brgphymatch, brgphyattach, 100 mii_phy_detach, mii_phy_activate 101 }; 102 103 int brgphy_service(struct mii_softc *, struct mii_data *, int); 104 void brgphy_status(struct mii_softc *); 105 106 void brgphy_5401_reset(struct mii_softc *); 107 void brgphy_5411_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_phydesc brgphys[] = { 122 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 123 MII_STR_BROADCOM_BCM5400 }, 124 125 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 126 MII_STR_BROADCOM_BCM5401 }, 127 128 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 129 MII_STR_BROADCOM_BCM5411 }, 130 131 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421, 132 MII_STR_BROADCOM_BCM5421 }, 133 134 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 135 MII_STR_BROADCOM_BCM5701 }, 136 137 { 0, 0, 138 NULL }, 139 }; 140 141 static void bcm5401_load_dspcode(struct mii_softc *); 142 static void bcm5411_load_dspcode(struct mii_softc *); 143 144 int 145 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 146 { 147 struct mii_attach_args *ma = aux; 148 149 if (mii_phy_match(ma, brgphys) != NULL) 150 return (10); 151 152 return (0); 153 } 154 155 void 156 brgphyattach(struct device *parent, struct device *self, void *aux) 157 { 158 struct mii_softc *sc = (struct mii_softc *)self; 159 struct mii_attach_args *ma = aux; 160 struct mii_data *mii = ma->mii_data; 161 const struct mii_phydesc *mpd; 162 163 mpd = mii_phy_match(ma, brgphys); 164 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 165 166 sc->mii_inst = mii->mii_instance; 167 sc->mii_phy = ma->mii_phyno; 168 sc->mii_pdata = mii; 169 sc->mii_flags = ma->mii_flags; 170 sc->mii_anegticks = 5; 171 172 switch (MII_MODEL(ma->mii_id2)) { 173 case MII_MODEL_BROADCOM_BCM5400: 174 sc->mii_funcs = &brgphy_5401_funcs; 175 printf("%s: using BCM5401 DSP patch\n", sc->mii_dev.dv_xname); 176 break; 177 178 case MII_MODEL_BROADCOM_BCM5401: 179 if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { 180 sc->mii_funcs = &brgphy_5401_funcs; 181 printf("%s: using BCM5401 DSP patch\n", 182 sc->mii_dev.dv_xname); 183 } else 184 sc->mii_funcs = &brgphy_funcs; 185 break; 186 187 case MII_MODEL_BROADCOM_BCM5411: 188 sc->mii_funcs = &brgphy_5411_funcs; 189 printf("%s: using BCM5411 DSP patch\n", sc->mii_dev.dv_xname); 190 break; 191 192 default: 193 sc->mii_funcs = &brgphy_funcs; 194 break; 195 } 196 197 PHY_RESET(sc); 198 199 sc->mii_capabilities = 200 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 201 if (sc->mii_capabilities & BMSR_EXTSTAT) 202 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 203 204 printf("%s: ", sc->mii_dev.dv_xname); 205 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 206 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 207 printf("no media present"); 208 else 209 mii_phy_add_media(sc); 210 printf("\n"); 211 } 212 213 int 214 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 215 { 216 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 217 int reg; 218 219 switch (cmd) { 220 case MII_POLLSTAT: 221 /* 222 * If we're not polling our PHY instance, just return. 223 */ 224 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 225 return (0); 226 break; 227 228 case MII_MEDIACHG: 229 /* 230 * If the media indicates a different PHY instance, 231 * isolate ourselves. 232 */ 233 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 234 reg = PHY_READ(sc, MII_BMCR); 235 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 236 return (0); 237 } 238 239 /* 240 * If the interface is not up, don't do anything. 241 */ 242 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 243 break; 244 245 mii_phy_reset(sc); /* XXX hardware bug work-around */ 246 mii_phy_setmedia(sc); 247 break; 248 249 case MII_TICK: 250 /* 251 * If we're not currently selected, just return. 252 */ 253 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 254 return (0); 255 256 if (mii_phy_tick(sc) == EJUSTRETURN) 257 return (0); 258 break; 259 260 case MII_DOWN: 261 mii_phy_down(sc); 262 return (0); 263 } 264 265 /* Update the media status. */ 266 mii_phy_status(sc); 267 268 /* 269 * Callback if something changed. Note that we need to poke 270 * the DSP on the Broadcom PHYs if the media changes. 271 */ 272 if (sc->mii_media_active != mii->mii_media_active || 273 sc->mii_media_status != mii->mii_media_status || 274 cmd == MII_MEDIACHG) { 275 mii_phy_update(sc, cmd); 276 if (sc->mii_funcs == &brgphy_5401_funcs) 277 bcm5401_load_dspcode(sc); 278 else if (sc->mii_funcs == &brgphy_5411_funcs) 279 bcm5411_load_dspcode(sc); 280 } 281 return (0); 282 } 283 284 void 285 brgphy_status(struct mii_softc *sc) 286 { 287 struct mii_data *mii = sc->mii_pdata; 288 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 289 int bmcr, auxsts, gtsr; 290 291 mii->mii_media_status = IFM_AVALID; 292 mii->mii_media_active = IFM_ETHER; 293 294 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 295 296 if (auxsts & BRGPHY_AUXSTS_LINK) 297 mii->mii_media_status |= IFM_ACTIVE; 298 299 bmcr = PHY_READ(sc, MII_BMCR); 300 if (bmcr & BMCR_ISO) { 301 mii->mii_media_active |= IFM_NONE; 302 mii->mii_media_status = 0; 303 return; 304 } 305 306 if (bmcr & BMCR_LOOP) 307 mii->mii_media_active |= IFM_LOOP; 308 309 if (bmcr & BMCR_AUTOEN) { 310 /* 311 * The media status bits are only valid of autonegotiation 312 * has completed (or it's disabled). 313 */ 314 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 315 /* Erg, still trying, I guess... */ 316 mii->mii_media_active |= IFM_NONE; 317 return; 318 } 319 320 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 321 case BRGPHY_RES_1000FD: 322 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 323 gtsr = PHY_READ(sc, MII_100T2SR); 324 if (gtsr & GTSR_MS_RES) 325 mii->mii_media_active |= IFM_ETH_MASTER; 326 break; 327 328 case BRGPHY_RES_1000HD: 329 mii->mii_media_active |= IFM_1000_T; 330 gtsr = PHY_READ(sc, MII_100T2SR); 331 if (gtsr & GTSR_MS_RES) 332 mii->mii_media_active |= IFM_ETH_MASTER; 333 break; 334 335 case BRGPHY_RES_100FD: 336 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 337 break; 338 339 case BRGPHY_RES_100T4: 340 mii->mii_media_active |= IFM_100_T4; 341 break; 342 343 case BRGPHY_RES_100HD: 344 mii->mii_media_active |= IFM_100_TX; 345 break; 346 347 case BRGPHY_RES_10FD: 348 mii->mii_media_active |= IFM_10_T|IFM_FDX; 349 break; 350 351 case BRGPHY_RES_10HD: 352 mii->mii_media_active |= IFM_10_T; 353 break; 354 355 default: 356 mii->mii_media_active |= IFM_NONE; 357 mii->mii_media_status = 0; 358 } 359 } else 360 mii->mii_media_active = ife->ifm_media; 361 } 362 363 void 364 brgphy_5401_reset(struct mii_softc *sc) 365 { 366 367 mii_phy_reset(sc); 368 bcm5401_load_dspcode(sc); 369 } 370 371 void 372 brgphy_5411_reset(struct mii_softc *sc) 373 { 374 375 mii_phy_reset(sc); 376 bcm5411_load_dspcode(sc); 377 } 378 379 static void 380 bcm5401_load_dspcode(struct mii_softc *sc) 381 { 382 static const struct { 383 int reg; 384 uint16_t val; 385 } dspcode[] = { 386 { BRGPHY_MII_AUXCTL, 0x4c20 }, 387 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, 388 { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, 389 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, 390 { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, 391 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 392 { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, 393 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 394 { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, 395 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 396 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, 397 { 0, 0 }, 398 }; 399 int i; 400 401 for (i = 0; dspcode[i].reg != 0; i++) 402 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 403 } 404 405 static void 406 bcm5411_load_dspcode(struct mii_softc *sc) 407 { 408 static const struct { 409 int reg; 410 uint16_t val; 411 } dspcode[] = { 412 { 0x1c, 0x8c23 }, 413 { 0x1c, 0x8ca3 }, 414 { 0x1c, 0x8c23 }, 415 { 0, 0 }, 416 }; 417 int i; 418 419 for (i = 0; dspcode[i].reg != 0; i++) 420 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 421 } 422
Indexes created Fri Sep 26 20:09:58 GMT 2025