brgphy.c revision 1.13
1 /* $NetBSD: brgphy.c,v 1.13 2002/10/02 16:34:15 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 1.13 2002/10/02 16:34:15 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 *); 106 107 const struct mii_phy_funcs brgphy_funcs = { 108 brgphy_service, brgphy_status, mii_phy_reset, 109 }; 110 111 const struct mii_phy_funcs brgphy_5401_funcs = { 112 brgphy_service, brgphy_status, brgphy_5401_reset, 113 }; 114 115 const struct mii_phy_funcs brgphy_5411_funcs = { 116 brgphy_service, brgphy_status, brgphy_5411_reset, 117 }; 118 119 const struct mii_phydesc brgphys[] = { 120 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, 121 MII_STR_BROADCOM_BCM5400 }, 122 123 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, 124 MII_STR_BROADCOM_BCM5401 }, 125 126 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, 127 MII_STR_BROADCOM_BCM5411 }, 128 129 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421, 130 MII_STR_BROADCOM_BCM5421 }, 131 132 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, 133 MII_STR_BROADCOM_BCM5701 }, 134 135 { 0, 0, 136 NULL }, 137 }; 138 139 static void bcm5401_load_dspcode(struct mii_softc *); 140 static void bcm5411_load_dspcode(struct mii_softc *); 141 142 int 143 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 144 { 145 struct mii_attach_args *ma = aux; 146 147 if (mii_phy_match(ma, brgphys) != NULL) 148 return (10); 149 150 return (0); 151 } 152 153 void 154 brgphyattach(struct device *parent, struct device *self, void *aux) 155 { 156 struct mii_softc *sc = (struct mii_softc *)self; 157 struct mii_attach_args *ma = aux; 158 struct mii_data *mii = ma->mii_data; 159 const struct mii_phydesc *mpd; 160 161 mpd = mii_phy_match(ma, brgphys); 162 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 163 164 sc->mii_inst = mii->mii_instance; 165 sc->mii_phy = ma->mii_phyno; 166 sc->mii_pdata = mii; 167 sc->mii_flags = ma->mii_flags; 168 sc->mii_anegticks = 5; 169 170 switch (MII_MODEL(ma->mii_id2)) { 171 case MII_MODEL_BROADCOM_BCM5400: 172 sc->mii_funcs = &brgphy_5401_funcs; 173 printf("%s: using BCM5401 DSP patch\n", sc->mii_dev.dv_xname); 174 break; 175 176 case MII_MODEL_BROADCOM_BCM5401: 177 if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { 178 sc->mii_funcs = &brgphy_5401_funcs; 179 printf("%s: using BCM5401 DSP patch\n", 180 sc->mii_dev.dv_xname); 181 } else 182 sc->mii_funcs = &brgphy_funcs; 183 break; 184 185 case MII_MODEL_BROADCOM_BCM5411: 186 sc->mii_funcs = &brgphy_5411_funcs; 187 printf("%s: using BCM5411 DSP patch\n", sc->mii_dev.dv_xname); 188 break; 189 190 default: 191 sc->mii_funcs = &brgphy_funcs; 192 break; 193 } 194 195 PHY_RESET(sc); 196 197 sc->mii_capabilities = 198 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 199 if (sc->mii_capabilities & BMSR_EXTSTAT) 200 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 201 202 printf("%s: ", sc->mii_dev.dv_xname); 203 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 204 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 205 printf("no media present"); 206 else 207 mii_phy_add_media(sc); 208 printf("\n"); 209 } 210 211 int 212 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 213 { 214 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 215 int reg; 216 217 switch (cmd) { 218 case MII_POLLSTAT: 219 /* 220 * If we're not polling our PHY instance, just return. 221 */ 222 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 223 return (0); 224 break; 225 226 case MII_MEDIACHG: 227 /* 228 * If the media indicates a different PHY instance, 229 * isolate ourselves. 230 */ 231 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 232 reg = PHY_READ(sc, MII_BMCR); 233 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 234 return (0); 235 } 236 237 /* 238 * If the interface is not up, don't do anything. 239 */ 240 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 241 break; 242 243 mii_phy_reset(sc); /* XXX hardware bug work-around */ 244 mii_phy_setmedia(sc); 245 break; 246 247 case MII_TICK: 248 /* 249 * If we're not currently selected, just return. 250 */ 251 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 252 return (0); 253 254 if (mii_phy_tick(sc) == EJUSTRETURN) 255 return (0); 256 break; 257 258 case MII_DOWN: 259 mii_phy_down(sc); 260 return (0); 261 } 262 263 /* Update the media status. */ 264 mii_phy_status(sc); 265 266 /* 267 * Callback if something changed. Note that we need to poke 268 * the DSP on the Broadcom PHYs if the media changes. 269 */ 270 if (sc->mii_media_active != mii->mii_media_active || 271 sc->mii_media_status != mii->mii_media_status || 272 cmd == MII_MEDIACHG) { 273 mii_phy_update(sc, cmd); 274 if (sc->mii_funcs == &brgphy_5401_funcs) 275 bcm5401_load_dspcode(sc); 276 else if (sc->mii_funcs == &brgphy_5411_funcs) 277 bcm5411_load_dspcode(sc); 278 } 279 return (0); 280 } 281 282 void 283 brgphy_status(struct mii_softc *sc) 284 { 285 struct mii_data *mii = sc->mii_pdata; 286 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 287 int bmcr, auxsts, gtsr; 288 289 mii->mii_media_status = IFM_AVALID; 290 mii->mii_media_active = IFM_ETHER; 291 292 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 293 294 if (auxsts & BRGPHY_AUXSTS_LINK) 295 mii->mii_media_status |= IFM_ACTIVE; 296 297 bmcr = PHY_READ(sc, MII_BMCR); 298 if (bmcr & BMCR_ISO) { 299 mii->mii_media_active |= IFM_NONE; 300 mii->mii_media_status = 0; 301 return; 302 } 303 304 if (bmcr & BMCR_LOOP) 305 mii->mii_media_active |= IFM_LOOP; 306 307 if (bmcr & BMCR_AUTOEN) { 308 /* 309 * The media status bits are only valid of autonegotiation 310 * has completed (or it's disabled). 311 */ 312 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 313 /* Erg, still trying, I guess... */ 314 mii->mii_media_active |= IFM_NONE; 315 return; 316 } 317 318 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 319 case BRGPHY_RES_1000FD: 320 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 321 gtsr = PHY_READ(sc, MII_100T2SR); 322 if (gtsr & GTSR_MS_RES) 323 mii->mii_media_active |= IFM_ETH_MASTER; 324 break; 325 326 case BRGPHY_RES_1000HD: 327 mii->mii_media_active |= IFM_1000_T; 328 gtsr = PHY_READ(sc, MII_100T2SR); 329 if (gtsr & GTSR_MS_RES) 330 mii->mii_media_active |= IFM_ETH_MASTER; 331 break; 332 333 case BRGPHY_RES_100FD: 334 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 335 break; 336 337 case BRGPHY_RES_100T4: 338 mii->mii_media_active |= IFM_100_T4; 339 break; 340 341 case BRGPHY_RES_100HD: 342 mii->mii_media_active |= IFM_100_TX; 343 break; 344 345 case BRGPHY_RES_10FD: 346 mii->mii_media_active |= IFM_10_T|IFM_FDX; 347 break; 348 349 case BRGPHY_RES_10HD: 350 mii->mii_media_active |= IFM_10_T; 351 break; 352 353 default: 354 mii->mii_media_active |= IFM_NONE; 355 mii->mii_media_status = 0; 356 } 357 } else 358 mii->mii_media_active = ife->ifm_media; 359 } 360 361 void 362 brgphy_5401_reset(struct mii_softc *sc) 363 { 364 365 mii_phy_reset(sc); 366 bcm5401_load_dspcode(sc); 367 } 368 369 void 370 brgphy_5411_reset(struct mii_softc *sc) 371 { 372 373 mii_phy_reset(sc); 374 bcm5411_load_dspcode(sc); 375 } 376 377 static void 378 bcm5401_load_dspcode(struct mii_softc *sc) 379 { 380 static const struct { 381 int reg; 382 uint16_t val; 383 } dspcode[] = { 384 { BRGPHY_MII_AUXCTL, 0x4c20 }, 385 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, 386 { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, 387 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, 388 { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, 389 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 390 { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, 391 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 392 { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, 393 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 394 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, 395 { 0, 0 }, 396 }; 397 int i; 398 399 for (i = 0; dspcode[i].reg != 0; i++) 400 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 401 } 402 403 static void 404 bcm5411_load_dspcode(struct mii_softc *sc) 405 { 406 static const struct { 407 int reg; 408 uint16_t val; 409 } dspcode[] = { 410 { 0x1c, 0x8c23 }, 411 { 0x1c, 0x8ca3 }, 412 { 0x1c, 0x8c23 }, 413 { 0, 0 }, 414 }; 415 int i; 416 417 for (i = 0; dspcode[i].reg != 0; i++) 418 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 419 } 420
Indexes created Thu Sep 25 02:09:54 GMT 2025