igphy.c revision 1.4
1 /* $NetBSD: igphy.c,v 1.4 2004/08/23 06:16:06 thorpej Exp $ */ 2 3 /* 4 * The Intel copyright applies to the analog register setup, and the 5 * (currently disabled) 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 * 3. All advertising materials mentioning features or use of this software 59 * must display the following acknowledgement: 60 * This product includes software developed by the NetBSD 61 * Foundation, Inc. and its contributors. 62 * 4. Neither the name of The NetBSD Foundation nor the names of its 63 * contributors may be used to endorse or promote products derived 64 * from this software without specific prior written permission. 65 * 66 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 67 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 68 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 69 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 70 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 71 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 72 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 73 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 74 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 75 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 76 * POSSIBILITY OF SUCH DAMAGE. 77 */ 78 79 #include <sys/cdefs.h> 80 __KERNEL_RCSID(0, "$NetBSD: igphy.c,v 1.4 2004/08/23 06:16:06 thorpej Exp $"); 81 82 #include "opt_mii.h" 83 84 #include <sys/param.h> 85 #include <sys/systm.h> 86 #include <sys/kernel.h> 87 #include <sys/device.h> 88 #include <sys/socket.h> 89 #include <sys/errno.h> 90 91 #include <net/if.h> 92 #include <net/if_media.h> 93 94 #include <dev/mii/mii.h> 95 #include <dev/mii/miivar.h> 96 #include <dev/mii/miidevs.h> 97 98 #include <dev/mii/igphyreg.h> 99 100 static void igphy_reset(struct mii_softc *); 101 static void igphy_load_dspcode(struct mii_softc *); 102 #if 0 103 static void igphy_smartspeed_workaround(struct mii_softc *sc); 104 #endif 105 106 static int igphymatch(struct device *, struct cfdata *, void *); 107 static void igphyattach(struct device *, struct device *, void *); 108 109 CFATTACH_DECL(igphy, sizeof(struct mii_softc), 110 igphymatch, igphyattach, mii_phy_detach, mii_phy_activate); 111 112 static int igphy_service(struct mii_softc *, struct mii_data *, int); 113 static void igphy_status(struct mii_softc *); 114 115 static const struct mii_phy_funcs igphy_funcs = { 116 igphy_service, igphy_status, igphy_reset, 117 }; 118 119 static const struct mii_phydesc igphys[] = { 120 { MII_OUI_yyINTEL, MII_MODEL_yyINTEL_IGP01E1000, 121 MII_STR_yyINTEL_IGP01E1000 }, 122 123 {0, 0, 124 NULL }, 125 }; 126 127 static int 128 igphymatch(struct device *parent, struct cfdata *match, void *aux) 129 { 130 struct mii_attach_args *ma = aux; 131 132 if (mii_phy_match(ma, igphys) != NULL) 133 return 10; 134 135 return 0; 136 } 137 138 static void 139 igphyattach(struct device *parent, struct device *self, void *aux) 140 { 141 struct mii_softc *sc = (struct mii_softc *)self; 142 struct mii_attach_args *ma = aux; 143 struct mii_data *mii = ma->mii_data; 144 const struct mii_phydesc *mpd; 145 146 mpd = mii_phy_match(ma, igphys); 147 aprint_naive(": Media interface\n"); 148 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 149 150 sc->mii_inst = mii->mii_instance; 151 sc->mii_phy = ma->mii_phyno; 152 sc->mii_funcs = &igphy_funcs; 153 sc->mii_pdata = mii; 154 sc->mii_flags = ma->mii_flags; 155 sc->mii_anegticks = 10; 156 157 PHY_RESET(sc); 158 159 sc->mii_capabilities = 160 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 161 if (sc->mii_capabilities & BMSR_EXTSTAT) 162 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 163 aprint_normal("%s: ", sc->mii_dev.dv_xname); 164 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 165 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 166 aprint_error("no media present"); 167 else 168 mii_phy_add_media(sc); 169 aprint_normal("\n"); 170 } 171 172 static void 173 igphy_load_dspcode(struct mii_softc *sc) 174 { 175 static const struct { 176 int reg; 177 uint16_t val; 178 } dspcode[] = { 179 { 0x1f95, 0x0001 }, 180 { 0x1f71, 0xbd21 }, 181 { 0x1f79, 0x0018 }, 182 { 0x1f30, 0x1600 }, 183 { 0x1f31, 0x0014 }, 184 { 0x1f32, 0x161c }, 185 { 0x1f94, 0x0003 }, 186 { 0x1f96, 0x003f }, 187 { 0x2010, 0x0008 }, 188 { 0, 0 }, 189 }; 190 int i; 191 192 delay(10); 193 194 PHY_WRITE(sc, MII_IGPHY_PAGE_SELECT, 0x0000); 195 PHY_WRITE(sc, 0x0000, 0x0140); 196 197 delay(5); 198 199 for (i = 0; dspcode[i].reg != 0; i++) 200 IGPHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); 201 202 PHY_WRITE(sc, MII_IGPHY_PAGE_SELECT,0x0000); 203 PHY_WRITE(sc, 0x0000, 0x3300); 204 } 205 206 static void 207 igphy_reset(struct mii_softc *sc) 208 { 209 uint16_t fused, fine, coarse; 210 211 mii_phy_reset(sc); 212 igphy_load_dspcode(sc); 213 214 fused = IGPHY_READ(sc, MII_IGPHY_ANALOG_SPARE_FUSE_STATUS); 215 if ((fused & ANALOG_SPARE_FUSE_ENABLED) == 0) { 216 fused = IGPHY_READ(sc, MII_IGPHY_ANALOG_FUSE_STATUS); 217 218 fine = fused & ANALOG_FUSE_FINE_MASK; 219 coarse = fused & ANALOG_FUSE_COARSE_MASK; 220 221 if (coarse > ANALOG_FUSE_COARSE_THRESH) { 222 coarse -= ANALOG_FUSE_COARSE_10; 223 fine -= ANALOG_FUSE_FINE_1; 224 } else if (coarse == ANALOG_FUSE_COARSE_THRESH) 225 fine -= ANALOG_FUSE_FINE_10; 226 227 fused = (fused & ANALOG_FUSE_POLY_MASK) | 228 (fine & ANALOG_FUSE_FINE_MASK) | 229 (coarse & ANALOG_FUSE_COARSE_MASK); 230 231 IGPHY_WRITE(sc, MII_IGPHY_ANALOG_FUSE_CONTROL, fused); 232 IGPHY_WRITE(sc, MII_IGPHY_ANALOG_FUSE_BYPASS, 233 ANALOG_FUSE_ENABLE_SW_CONTROL); 234 } 235 PHY_WRITE(sc, MII_IGPHY_PAGE_SELECT,0x0000); 236 } 237 238 239 static int 240 igphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 241 { 242 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 243 uint16_t reg; 244 245 switch (cmd) { 246 case MII_POLLSTAT: 247 /* 248 * If we're not polling our PHY instance, just return. 249 */ 250 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 251 return (0); 252 break; 253 254 case MII_MEDIACHG: 255 /* 256 * If the media indicates a different PHY instance, 257 * isolate ourselves. 258 */ 259 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 260 reg = PHY_READ(sc, MII_BMCR); 261 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 262 return (0); 263 } 264 265 /* 266 * If the interface is not up, don't do anything. 267 */ 268 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 269 break; 270 271 mii_phy_setmedia(sc); 272 break; 273 274 case MII_TICK: 275 /* 276 * If we're not currently selected, just return. 277 */ 278 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 279 return (0); 280 281 #if 0 282 igphy_smartspeed_workaround(sc); 283 #endif 284 285 if (mii_phy_tick(sc) == EJUSTRETURN) 286 return (0); 287 break; 288 289 case MII_DOWN: 290 mii_phy_down(sc); 291 return (0); 292 } 293 294 /* Update the media status. */ 295 mii_phy_status(sc); 296 297 /* Callback if something changed. */ 298 mii_phy_update(sc, cmd); 299 return (0); 300 } 301 302 303 static void 304 igphy_status(struct mii_softc *sc) 305 { 306 struct mii_data *mii = sc->mii_pdata; 307 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 308 uint16_t bmcr, pssr, gtsr, bmsr; 309 310 mii->mii_media_status = IFM_AVALID; 311 mii->mii_media_active = IFM_ETHER; 312 313 pssr = PHY_READ(sc, MII_IGPHY_PORT_STATUS); 314 315 if (pssr & PSSR_LINK_UP) 316 mii->mii_media_status |= IFM_ACTIVE; 317 318 bmcr = PHY_READ(sc, MII_BMCR); 319 if (bmcr & BMCR_ISO) { 320 mii->mii_media_active |= IFM_NONE; 321 mii->mii_media_status = 0; 322 return; 323 } 324 325 if (bmcr & BMCR_LOOP) 326 mii->mii_media_active |= IFM_LOOP; 327 328 bmsr = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 329 330 /* 331 * XXX can't check if the info is valid, no 332 * 'negotiation done' bit? 333 */ 334 if (bmcr & BMCR_AUTOEN) { 335 if ((bmsr & BMSR_ACOMP) == 0) { 336 mii->mii_media_active |= IFM_NONE; 337 return; 338 } 339 switch (pssr & PSSR_SPEED_MASK) { 340 case PSSR_SPEED_1000MBPS: 341 mii->mii_media_active |= IFM_1000_T; 342 gtsr = PHY_READ(sc, MII_100T2SR); 343 if (gtsr & GTSR_MS_RES) 344 mii->mii_media_active |= IFM_ETH_MASTER; 345 break; 346 347 case PSSR_SPEED_100MBPS: 348 mii->mii_media_active |= IFM_100_TX; 349 break; 350 351 case PSSR_SPEED_10MBPS: 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 return; 359 } 360 361 if (pssr & PSSR_FULL_DUPLEX) 362 mii->mii_media_active |= 363 IFM_FDX | mii_phy_flowstatus(sc); 364 } else 365 mii->mii_media_active = ife->ifm_media; 366 } 367 368 #if 0 369 static void 370 igphy_smartspeed_workaround(struct mii_softc *sc) 371 { 372 uint16_t reg, gtsr, gctr; 373 374 reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 375 if (!(reg & BMSR_LINK)) { 376 switch (sc->mii_ticks) { 377 case 0: 378 gtsr = PHY_READ(sc, MII_100T2SR); 379 if (!(gtsr & GTSR_MAN_MS_FLT)) 380 break; 381 gtsr = PHY_READ(sc, MII_100T2SR); 382 if (gtsr & GTSR_MAN_MS_FLT) { 383 gtcr = PHY_READ(sc, MII_100T2CR); 384 if (gtcr & GTCR_MAN_MS) { 385 gtcr &= ~GTCR_MAN_MS; 386 PHY_WRITE(sc, MII_100T2CR, 387 gtcr); 388 } 389 mii_phy_auto(sc, 0); 390 sc->mii_ticks++; 391 } 392 break; 393 case IGPHY_TICK_DOWNSHIFT: 394 gtcr = PHY_READ(sc, MII_100T2CR); 395 gtcr |= GTCR_MAN_MS; 396 PHY_WRITE(sc, MII_100T2CR, gtcr); 397 mii_phy_auto(sc, 0); 398 break; 399 default: 400 break; 401 } 402 } 403 } 404 #endif 405
Indexes created Wed Sep 24 05:09:52 GMT 2025