igphy.c revision 1.35
1 /* $NetBSD: igphy.c,v 1.35 2020/08/03 07:16:51 msaitoh Exp $ */ 2 3 /* 4 * The Intel copyright applies to the analog register setup, and the 5 * SmartSpeed workaround code. 6 */ 7 8 /******************************************************************************* 9 10 Copyright (c) 2001-2003, Intel Corporation 11 All rights reserved. 12 13 Redistribution and use in source and binary forms, with or without 14 modification, are permitted provided that the following conditions are met: 15 16 1. Redistributions of source code must retain the above copyright notice, 17 this list of conditions and the following disclaimer. 18 19 2. Redistributions in binary form must reproduce the above copyright 20 notice, this list of conditions and the following disclaimer in the 21 documentation and/or other materials provided with the distribution. 22 23 3. Neither the name of the Intel Corporation nor the names of its 24 contributors may be used to endorse or promote products derived from 25 this software without specific prior written permission. 26 27 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 28 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 31 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 42 /*- 43 * Copyright (c) 1998, 1999, 2000, 2003 The NetBSD Foundation, Inc. 44 * All rights reserved. 45 * 46 * This code is derived from software contributed to The NetBSD Foundation 47 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 48 * NASA Ames Research Center, and by Frank van der Linden. 49 * 50 * Redistribution and use in source and binary forms, with or without 51 * modification, are permitted provided that the following conditions 52 * are met: 53 * 1. Redistributions of source code must retain the above copyright 54 * notice, this list of conditions and the following disclaimer. 55 * 2. Redistributions in binary form must reproduce the above copyright 56 * notice, this list of conditions and the following disclaimer in the 57 * documentation and/or other materials provided with the distribution. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 60 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 61 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 62 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 63 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 64 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 65 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 66 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 67 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 68 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 69 * POSSIBILITY OF SUCH DAMAGE. 70 */ 71 72 #include <sys/cdefs.h> 73 __KERNEL_RCSID(0, "$NetBSD: igphy.c,v 1.35 2020/08/03 07:16:51 msaitoh Exp $"); 74 75 #ifdef _KERNEL_OPT 76 #include "opt_mii.h" 77 #endif 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 #include <dev/mii/igphyreg.h> 93 #include <dev/mii/igphyvar.h> 94 #include <dev/pci/if_wmvar.h> 95 96 static void igphy_reset(struct mii_softc *); 97 static void igphy_load_dspcode(struct mii_softc *); 98 static void igphy_load_dspcode_igp3(struct mii_softc *); 99 static void igphy_smartspeed_workaround(struct mii_softc *sc); 100 101 static int igphymatch(device_t, cfdata_t, void *); 102 static void igphyattach(device_t, device_t, void *); 103 104 CFATTACH_DECL_NEW(igphy, sizeof(struct igphy_softc), 105 igphymatch, igphyattach, mii_phy_detach, mii_phy_activate); 106 107 static int igphy_service(struct mii_softc *, struct mii_data *, int); 108 static void igphy_status(struct mii_softc *); 109 110 static const struct mii_phy_funcs igphy_funcs = { 111 igphy_service, igphy_status, igphy_reset, 112 }; 113 114 static const struct mii_phydesc igphys[] = { 115 MII_PHY_DESC(yyINTEL, IGP01E1000), 116 MII_PHY_DESC(yyINTEL, I82566), 117 MII_PHY_END, 118 }; 119 120 static int 121 igphymatch(device_t parent, cfdata_t match, void *aux) 122 { 123 struct mii_attach_args *ma = aux; 124 125 if (mii_phy_match(ma, igphys) != NULL) 126 return 10; 127 128 return 0; 129 } 130 131 static void 132 igphyattach(device_t parent, device_t self, void *aux) 133 { 134 struct mii_softc *sc = device_private(self); 135 struct mii_attach_args *ma = aux; 136 struct mii_data *mii = ma->mii_data; 137 const struct mii_phydesc *mpd; 138 struct igphy_softc *igsc = (struct igphy_softc *)sc; 139 prop_dictionary_t dict; 140 141 mpd = mii_phy_match(ma, igphys); 142 aprint_naive(": Media interface\n"); 143 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 144 145 dict = device_properties(parent); 146 if (!prop_dictionary_get_uint32(dict, "mactype", &igsc->sc_mactype)) 147 aprint_error("WARNING! Failed to get mactype\n"); 148 if (!prop_dictionary_get_uint32(dict, "macflags", &igsc->sc_macflags)) 149 aprint_error("WARNING! Failed to get macflags\n"); 150 151 sc->mii_dev = self; 152 sc->mii_inst = mii->mii_instance; 153 sc->mii_phy = ma->mii_phyno; 154 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 155 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 156 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 157 sc->mii_funcs = &igphy_funcs; 158 sc->mii_pdata = mii; 159 sc->mii_flags = ma->mii_flags; 160 161 mii_lock(mii); 162 163 PHY_RESET(sc); 164 165 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 166 sc->mii_capabilities &= ma->mii_capmask; 167 if (sc->mii_capabilities & BMSR_EXTSTAT) 168 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 169 170 mii_unlock(mii); 171 172 mii_phy_add_media(sc); 173 } 174 175 typedef struct { 176 int reg; 177 uint16_t val; 178 } dspcode; 179 180 static const dspcode igp1code[] = { 181 { 0x1f95, 0x0001 }, 182 { 0x1f71, 0xbd21 }, 183 { 0x1f79, 0x0018 }, 184 { 0x1f30, 0x1600 }, 185 { 0x1f31, 0x0014 }, 186 { 0x1f32, 0x161c }, 187 { 0x1f94, 0x0003 }, 188 { 0x1f96, 0x003f }, 189 { 0x2010, 0x0008 }, 190 { 0, 0 }, 191 }; 192 193 static const dspcode igp1code_r2[] = { 194 { 0x1f73, 0x0099 }, 195 { 0, 0 }, 196 }; 197 198 static const dspcode igp3code[] = { 199 { 0x2f5b, 0x9018}, 200 { 0x2f52, 0x0000}, 201 { 0x2fb1, 0x8b24}, 202 { 0x2fb2, 0xf8f0}, 203 { 0x2010, 0x10b0}, 204 { 0x2011, 0x0000}, 205 { 0x20dd, 0x249a}, 206 { 0x20de, 0x00d3}, 207 { 0x28b4, 0x04ce}, 208 { 0x2f70, 0x29e4}, 209 { 0x0000, 0x0140}, 210 { 0x1f30, 0x1606}, 211 { 0x1f31, 0xb814}, 212 { 0x1f35, 0x002a}, 213 { 0x1f3e, 0x0067}, 214 { 0x1f54, 0x0065}, 215 { 0x1f55, 0x002a}, 216 { 0x1f56, 0x002a}, 217 { 0x1f72, 0x3fb0}, 218 { 0x1f76, 0xc0ff}, 219 { 0x1f77, 0x1dec}, 220 { 0x1f78, 0xf9ef}, 221 { 0x1f79, 0x0210}, 222 { 0x1895, 0x0003}, 223 { 0x1796, 0x0008}, 224 { 0x1798, 0xd008}, 225 { 0x1898, 0xd918}, 226 { 0x187a, 0x0800}, 227 { 0x0019, 0x008d}, 228 { 0x001b, 0x2080}, 229 { 0x0014, 0x0045}, 230 { 0x0000, 0x1340}, 231 { 0, 0 }, 232 }; 233 234 /* DSP patch for igp1 and igp2 */ 235 static void 236 igphy_load_dspcode(struct mii_softc *sc) 237 { 238 struct igphy_softc *igsc = (struct igphy_softc *)sc; 239 const dspcode *code; 240 uint16_t reg; 241 int i; 242 243 /* This workaround is only for 82541 and 82547 */ 244 switch (igsc->sc_mactype) { 245 case WM_T_82541: 246 case WM_T_82547: 247 code = igp1code; 248 break; 249 case WM_T_82541_2: 250 case WM_T_82547_2: 251 code = igp1code_r2; 252 break; 253 default: 254 return; /* byebye */ 255 } 256 257 /* Delay after phy reset to enable NVM configuration to load */ 258 delay(20000); 259 260 /* 261 * Save off the current value of register 0x2F5B to be restored at 262 * the end of this routine. 263 */ 264 IGPHY_READ(sc, 0x2f5b, ®); 265 266 /* Disabled the PHY transmitter */ 267 IGPHY_WRITE(sc, 0x2f5b, 0x0003); 268 269 delay(20000); 270 271 PHY_WRITE(sc, IGPHY_PAGE_SELECT, 0x0000); 272 PHY_WRITE(sc, 0x0000, 0x0140); 273 274 delay(5000); 275 276 for (i = 0; !((code[i].reg == 0) && (code[i].val == 0)); i++) 277 IGPHY_WRITE(sc, code[i].reg, code[i].val); 278 279 PHY_WRITE(sc, IGPHY_PAGE_SELECT, 0x0000); 280 PHY_WRITE(sc, 0x0000, 0x3300); 281 282 delay(20000); 283 284 /* Now enable the transmitter */ 285 IGPHY_WRITE(sc, 0x2f5b, reg); 286 } 287 288 static void 289 igphy_load_dspcode_igp3(struct mii_softc *sc) 290 { 291 const dspcode *code = igp3code; 292 int i; 293 294 for (i = 0; !((code[i].reg == 0) && (code[i].val == 0)); i++) 295 IGPHY_WRITE(sc, code[i].reg, code[i].val); 296 } 297 298 static void 299 igphy_reset(struct mii_softc *sc) 300 { 301 struct igphy_softc *igsc = (struct igphy_softc *)sc; 302 uint16_t fused, fine, coarse; 303 304 KASSERT(mii_locked(sc->mii_pdata)); 305 306 mii_phy_reset(sc); 307 delay(150); 308 309 switch (igsc->sc_mactype) { 310 case WM_T_82541: 311 case WM_T_82547: 312 case WM_T_82541_2: 313 case WM_T_82547_2: 314 igphy_load_dspcode(sc); 315 break; 316 case WM_T_ICH8: 317 case WM_T_ICH9: 318 if ((igsc->sc_macflags & WM_F_EEPROM_INVALID) != 0) 319 igphy_load_dspcode_igp3(sc); 320 break; 321 default: /* Not for ICH10, PCH and 8257[12] */ 322 break; 323 } 324 325 if (igsc->sc_mactype == WM_T_82547) { 326 IGPHY_READ(sc, IGPHY_ANALOG_SPARE_FUSE_STATUS, &fused); 327 if ((fused & ANALOG_SPARE_FUSE_ENABLED) == 0) { 328 IGPHY_READ(sc, IGPHY_ANALOG_FUSE_STATUS, &fused); 329 330 fine = fused & ANALOG_FUSE_FINE_MASK; 331 coarse = fused & ANALOG_FUSE_COARSE_MASK; 332 333 if (coarse > ANALOG_FUSE_COARSE_THRESH) { 334 coarse -= ANALOG_FUSE_COARSE_10; 335 fine -= ANALOG_FUSE_FINE_1; 336 } else if (coarse == ANALOG_FUSE_COARSE_THRESH) 337 fine -= ANALOG_FUSE_FINE_10; 338 339 fused = (fused & ANALOG_FUSE_POLY_MASK) | 340 (fine & ANALOG_FUSE_FINE_MASK) | 341 (coarse & ANALOG_FUSE_COARSE_MASK); 342 343 IGPHY_WRITE(sc, IGPHY_ANALOG_FUSE_CONTROL, fused); 344 IGPHY_WRITE(sc, IGPHY_ANALOG_FUSE_BYPASS, 345 ANALOG_FUSE_ENABLE_SW_CONTROL); 346 } 347 } 348 PHY_WRITE(sc, IGPHY_PAGE_SELECT, 0x0000); 349 } 350 351 352 static int 353 igphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 354 { 355 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 356 uint16_t reg; 357 358 KASSERT(mii_locked(mii)); 359 360 switch (cmd) { 361 case MII_POLLSTAT: 362 /* If we're not polling our PHY instance, just return. */ 363 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 364 return 0; 365 break; 366 367 case MII_MEDIACHG: 368 /* 369 * If the media indicates a different PHY instance, 370 * isolate ourselves. 371 */ 372 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 373 PHY_READ(sc, MII_BMCR, ®); 374 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 375 return 0; 376 } 377 378 /* If the interface is not up, don't do anything. */ 379 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 380 break; 381 382 PHY_READ(sc, IGPHY_PORT_CTRL, ®); 383 if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO) { 384 reg |= PSCR_AUTO_MDIX; 385 reg &= ~PSCR_FORCE_MDI_MDIX; 386 PHY_WRITE(sc, IGPHY_PORT_CTRL, reg); 387 } else { 388 reg &= ~(PSCR_AUTO_MDIX | PSCR_FORCE_MDI_MDIX); 389 PHY_WRITE(sc, IGPHY_PORT_CTRL, reg); 390 } 391 392 mii_phy_setmedia(sc); 393 break; 394 395 case MII_TICK: 396 /* If we're not currently selected, just return. */ 397 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 398 return 0; 399 400 igphy_smartspeed_workaround(sc); 401 402 if (mii_phy_tick(sc) == EJUSTRETURN) 403 return 0; 404 break; 405 406 case MII_DOWN: 407 mii_phy_down(sc); 408 return 0; 409 } 410 411 /* Update the media status. */ 412 mii_phy_status(sc); 413 414 /* Callback if something changed. */ 415 mii_phy_update(sc, cmd); 416 return 0; 417 } 418 419 420 static void 421 igphy_status(struct mii_softc *sc) 422 { 423 struct mii_data *mii = sc->mii_pdata; 424 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 425 uint16_t bmcr, pssr, gtsr, bmsr; 426 427 KASSERT(mii_locked(mii)); 428 429 mii->mii_media_status = IFM_AVALID; 430 mii->mii_media_active = IFM_ETHER; 431 432 PHY_READ(sc, IGPHY_PORT_STATUS, &pssr); 433 434 if (pssr & PSSR_LINK_UP) 435 mii->mii_media_status |= IFM_ACTIVE; 436 437 PHY_READ(sc, MII_BMCR, &bmcr); 438 if (bmcr & BMCR_ISO) { 439 mii->mii_media_active |= IFM_NONE; 440 mii->mii_media_status = 0; 441 return; 442 } 443 444 if (bmcr & BMCR_LOOP) 445 mii->mii_media_active |= IFM_LOOP; 446 447 PHY_READ(sc, MII_BMSR, &bmsr); 448 PHY_READ(sc, MII_BMSR, &bmsr); 449 450 /* XXX can't check if the info is valid, no 'negotiation done' bit? */ 451 if (bmcr & BMCR_AUTOEN) { 452 if ((bmsr & BMSR_ACOMP) == 0) { 453 mii->mii_media_active |= IFM_NONE; 454 return; 455 } 456 switch (pssr & PSSR_SPEED_MASK) { 457 case PSSR_SPEED_1000MBPS: 458 mii->mii_media_active |= IFM_1000_T; 459 PHY_READ(sc, MII_100T2SR, >sr); 460 if (gtsr & GTSR_MS_RES) 461 mii->mii_media_active |= IFM_ETH_MASTER; 462 break; 463 464 case PSSR_SPEED_100MBPS: 465 mii->mii_media_active |= IFM_100_TX; 466 break; 467 468 case PSSR_SPEED_10MBPS: 469 mii->mii_media_active |= IFM_10_T; 470 break; 471 472 default: 473 mii->mii_media_active |= IFM_NONE; 474 mii->mii_media_status = 0; 475 return; 476 } 477 478 if (pssr & PSSR_FULL_DUPLEX) 479 mii->mii_media_active |= 480 IFM_FDX | mii_phy_flowstatus(sc); 481 else 482 mii->mii_media_active |= IFM_HDX; 483 } else 484 mii->mii_media_active = ife->ifm_media; 485 } 486 487 static void 488 igphy_smartspeed_workaround(struct mii_softc *sc) 489 { 490 struct igphy_softc *igsc = (struct igphy_softc *)sc; 491 uint16_t reg, gtsr, gtcr; 492 493 /* This workaround is only for 82541 and 82547 */ 494 switch (igsc->sc_mactype) { 495 case WM_T_82541: 496 case WM_T_82541_2: 497 case WM_T_82547: 498 case WM_T_82547_2: 499 break; 500 default: 501 /* byebye */ 502 return; 503 } 504 505 PHY_READ(sc, MII_BMCR, ®); 506 if ((reg & BMCR_AUTOEN) == 0) 507 return; 508 509 /* XXX Assume 1000TX-FDX is advertized if doing autonegotiation. */ 510 511 PHY_READ(sc, MII_BMSR, ®); 512 PHY_READ(sc, MII_BMSR, ®); 513 if ((reg & BMSR_LINK) == 0) { 514 switch (igsc->sc_smartspeed) { 515 case 0: 516 PHY_READ(sc, MII_100T2SR, >sr); 517 if (!(gtsr & GTSR_MAN_MS_FLT)) 518 break; 519 PHY_READ(sc, MII_100T2SR, >sr); 520 if (gtsr & GTSR_MAN_MS_FLT) { 521 PHY_READ(sc, MII_100T2CR, >cr); 522 if (gtcr & GTCR_MAN_MS) { 523 gtcr &= ~GTCR_MAN_MS; 524 PHY_WRITE(sc, MII_100T2CR, gtcr); 525 } 526 mii_phy_auto(sc); 527 } 528 break; 529 case IGPHY_TICK_DOWNSHIFT: 530 PHY_READ(sc, MII_100T2CR, >cr); 531 gtcr |= GTCR_MAN_MS; 532 PHY_WRITE(sc, MII_100T2CR, gtcr); 533 mii_phy_auto(sc); 534 break; 535 default: 536 break; 537 } 538 if (igsc->sc_smartspeed++ == IGPHY_TICK_MAX) 539 igsc->sc_smartspeed = 0; 540 } else 541 igsc->sc_smartspeed = 0; 542 } 543
Indexes created Wed Sep 24 05:09:52 GMT 2025