brgphy.c revision 1.14
1 /* $NetBSD: brgphy.c,v 1.14 2002/12/27 03:15:52 matt 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 1.14 2002/12/27 03:15:52 matt 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 { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5703, 136 MII_STR_BROADCOM_BCM5703 }, 137 138 { 0, 0, 139 NULL }, 140 }; 141 142 static void bcm5401_load_dspcode(struct mii_softc *); 143 static void bcm5411_load_dspcode(struct mii_softc *); 144 145 int 146 brgphymatch(struct device *parent, struct cfdata *match, void *aux) 147 { 148 struct mii_attach_args *ma = aux; 149 150 if (mii_phy_match(ma, brgphys) != NULL) 151 return (10); 152 153 return (0); 154 } 155 156 void 157 brgphyattach(struct device *parent, struct device *self, void *aux) 158 { 159 struct mii_softc *sc = (struct mii_softc *)self; 160 struct mii_attach_args *ma = aux; 161 struct mii_data *mii = ma->mii_data; 162 const struct mii_phydesc *mpd; 163 164 mpd = mii_phy_match(ma, brgphys); 165 printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 166 167 sc->mii_inst = mii->mii_instance; 168 sc->mii_phy = ma->mii_phyno; 169 sc->mii_pdata = mii; 170 sc->mii_flags = ma->mii_flags; 171 sc->mii_anegticks = 5; 172 173 switch (MII_MODEL(ma->mii_id2)) { 174 case MII_MODEL_BROADCOM_BCM5400: 175 sc->mii_funcs = &brgphy_5401_funcs; 176 printf("%s: using BCM5401 DSP patch\n", sc->mii_dev.dv_xname); 177 break; 178 179 case MII_MODEL_BROADCOM_BCM5401: 180 if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { 181 sc->mii_funcs = &brgphy_5401_funcs; 182 printf("%s: using BCM5401 DSP patch\n", 183 sc->mii_dev.dv_xname); 184 } else 185 sc->mii_funcs = &brgphy_funcs; 186 break; 187 188 case MII_MODEL_BROADCOM_BCM5411: 189 sc->mii_funcs = &brgphy_5411_funcs; 190 printf("%s: using BCM5411 DSP patch\n", sc->mii_dev.dv_xname); 191 break; 192 193 default: 194 sc->mii_funcs = &brgphy_funcs; 195 break; 196 } 197 198 PHY_RESET(sc); 199 200 sc->mii_capabilities = 201 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 202 if (sc->mii_capabilities & BMSR_EXTSTAT) 203 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 204 205 printf("%s: ", sc->mii_dev.dv_xname); 206 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 207 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 208 printf("no media present"); 209 else 210 mii_phy_add_media(sc); 211 printf("\n"); 212 } 213 214 int 215 brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 216 { 217 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 218 int reg; 219 220 switch (cmd) { 221 case MII_POLLSTAT: 222 /* 223 * If we're not polling our PHY instance, just return. 224 */ 225 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 226 return (0); 227 break; 228 229 case MII_MEDIACHG: 230 /* 231 * If the media indicates a different PHY instance, 232 * isolate ourselves. 233 */ 234 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 235 reg = PHY_READ(sc, MII_BMCR); 236 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 237 return (0); 238 } 239 240 /* 241 * If the interface is not up, don't do anything. 242 */ 243 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 244 break; 245 246 mii_phy_reset(sc); /* XXX hardware bug work-around */ 247 mii_phy_setmedia(sc); 248 break; 249 250 case MII_TICK: 251 /* 252 * If we're not currently selected, just return. 253 */ 254 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 255 return (0); 256 257 if (mii_phy_tick(sc) == EJUSTRETURN) 258 return (0); 259 break; 260 261 case MII_DOWN: 262 mii_phy_down(sc); 263 return (0); 264 } 265 266 /* Update the media status. */ 267 mii_phy_status(sc); 268 269 /* 270 * Callback if something changed. Note that we need to poke 271 * the DSP on the Broadcom PHYs if the media changes. 272 */ 273 if (sc->mii_media_active != mii->mii_media_active || 274 sc->mii_media_status != mii->mii_media_status || 275 cmd == MII_MEDIACHG) { 276 mii_phy_update(sc, cmd); 277 if (sc->mii_funcs == &brgphy_5401_funcs) 278 bcm5401_load_dspcode(sc); 279 else if (sc->mii_funcs == &brgphy_5411_funcs) 280 bcm5411_load_dspcode(sc); 281 } 282 return (0); 283 } 284 285 void 286 brgphy_status(struct mii_softc *sc) 287 { 288 struct mii_data *mii = sc->mii_pdata; 289 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 290 int bmcr, auxsts, gtsr; 291 292 mii->mii_media_status = IFM_AVALID; 293 mii->mii_media_active = IFM_ETHER; 294 295 auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); 296 297 if (auxsts & BRGPHY_AUXSTS_LINK) 298 mii->mii_media_status |= IFM_ACTIVE; 299 300 bmcr = PHY_READ(sc, MII_BMCR); 301 if (bmcr & BMCR_ISO) { 302 mii->mii_media_active |= IFM_NONE; 303 mii->mii_media_status = 0; 304 return; 305 } 306 307 if (bmcr & BMCR_LOOP) 308 mii->mii_media_active |= IFM_LOOP; 309 310 if (bmcr & BMCR_AUTOEN) { 311 /* 312 * The media status bits are only valid of autonegotiation 313 * has completed (or it's disabled). 314 */ 315 if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { 316 /* Erg, still trying, I guess... */ 317 mii->mii_media_active |= IFM_NONE; 318 return; 319 } 320 321 switch (auxsts & BRGPHY_AUXSTS_AN_RES) { 322 case BRGPHY_RES_1000FD: 323 mii->mii_media_active |= IFM_1000_T|IFM_FDX; 324 gtsr = PHY_READ(sc, MII_100T2SR); 325 if (gtsr & GTSR_MS_RES) 326 mii->mii_media_active |= IFM_ETH_MASTER; 327 break; 328 329 case BRGPHY_RES_1000HD: 330 mii->mii_media_active |= IFM_1000_T; 331 gtsr = PHY_READ(sc, MII_100T2SR); 332 if (gtsr & GTSR_MS_RES) 333 mii->mii_media_active |= IFM_ETH_MASTER; 334 break; 335 336 case BRGPHY_RES_100FD: 337 mii->mii_media_active |= IFM_100_TX|IFM_FDX; 338 break; 339 340 case BRGPHY_RES_100T4: 341 mii->mii_media_active |= IFM_100_T4; 342 break; 343 344 case BRGPHY_RES_100HD: 345 mii->mii_media_active |= IFM_100_TX; 346 break; 347 348 case BRGPHY_RES_10FD: 349 mii->mii_media_active |= IFM_10_T|IFM_FDX; 350 break; 351 352 case BRGPHY_RES_10HD: 353 mii->mii_media_active |= IFM_10_T; 354 break; 355 356 default: 357 mii->mii_media_active |= IFM_NONE; 358 mii->mii_media_status = 0; 359 } 360 } else 361 mii->mii_media_active = ife->ifm_media; 362 } 363 364 void 365 brgphy_5401_reset(struct mii_softc *sc) 366 { 367 368 mii_phy_reset(sc); 369 bcm5401_load_dspcode(sc); 370 } 371 372 void 373 brgphy_5411_reset(struct mii_softc *sc) 374 { 375 376 mii_phy_reset(sc); 377 bcm5411_load_dspcode(sc); 378 } 379 380 static void 381 bcm5401_load_dspcode(struct mii_softc *sc) 382 { 383 static const struct { 384 int reg; 385 uint16_t val; 386 } dspcode[] = { 387 { BRGPHY_MII_AUXCTL, 0x4c20 }, 388 { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, 389 { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, 390 { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, 391 { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, 392 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 393 { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, 394 { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, 395 { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, 396 { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, 397 { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, 398 { 0, 0 }, 399 }; 400 int i; 401 402 for (i = 0; dspcode[i].reg != 0; i++) 403 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 404 } 405 406 static void 407 bcm5411_load_dspcode(struct mii_softc *sc) 408 { 409 static const struct { 410 int reg; 411 uint16_t val; 412 } dspcode[] = { 413 { 0x1c, 0x8c23 }, 414 { 0x1c, 0x8ca3 }, 415 { 0x1c, 0x8c23 }, 416 { 0, 0 }, 417 }; 418 int i; 419 420 for (i = 0; dspcode[i].reg != 0; i++) 421 PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 422 } 423
Indexes created Wed Sep 24 05:09:52 GMT 2025