makphy.c revision 1.36.4.1
1 /* $NetBSD: makphy.c,v 1.36.4.1 2012/02/18 07:34:32 mrg 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 */ 56 57 /* 58 * Driver for the Marvell 88E1000 ``Alaska'' 10/100/1000 PHY. 59 */ 60 61 #include <sys/cdefs.h> 62 __KERNEL_RCSID(0, "$NetBSD: makphy.c,v 1.36.4.1 2012/02/18 07:34:32 mrg Exp $"); 63 64 #include <sys/param.h> 65 #include <sys/systm.h> 66 #include <sys/kernel.h> 67 #include <sys/device.h> 68 #include <sys/socket.h> 69 #include <sys/errno.h> 70 71 #include <net/if.h> 72 #include <net/if_media.h> 73 74 #include <dev/mii/mii.h> 75 #include <dev/mii/miivar.h> 76 #include <dev/mii/miidevs.h> 77 78 #include <dev/mii/makphyreg.h> 79 80 static int makphymatch(device_t, cfdata_t, void *); 81 static void makphyattach(device_t, device_t, void *); 82 83 CFATTACH_DECL_NEW(makphy, sizeof(struct mii_softc), 84 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); 85 86 static int makphy_service(struct mii_softc *, struct mii_data *, int); 87 static void makphy_status(struct mii_softc *); 88 static void makphy_reset(struct mii_softc *); 89 90 static const struct mii_phy_funcs makphy_funcs = { 91 makphy_service, makphy_status, makphy_reset, 92 }; 93 94 static const struct mii_phydesc makphys[] = { 95 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 96 MII_STR_xxMARVELL_E1000_3 }, 97 98 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 99 MII_STR_xxMARVELL_E1000_5 }, 100 101 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 102 MII_STR_xxMARVELL_E1011 }, 103 104 #if 0 105 /* doesn't work on eg. HP XW9400 */ 106 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149, 107 MII_STR_xxMARVELL_E1149 }, 108 #endif 109 110 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 111 MII_STR_xxMARVELL_E1111 }, 112 113 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 114 MII_STR_xxMARVELL_E1116 }, 115 116 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, 117 MII_STR_xxMARVELL_E1145 }, 118 119 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R, 120 MII_STR_xxMARVELL_E1116R }, 121 122 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R_29, 123 MII_STR_xxMARVELL_E1116R_29 }, 124 125 { 0, 0, 126 NULL }, 127 }; 128 129 static int 130 makphymatch(device_t parent, cfdata_t match, void *aux) 131 { 132 struct mii_attach_args *ma = aux; 133 134 if (mii_phy_match(ma, makphys) != NULL) 135 return (10); 136 137 return (0); 138 } 139 140 static void 141 makphyattach(device_t parent, device_t self, void *aux) 142 { 143 struct mii_softc *sc = device_private(self); 144 struct mii_attach_args *ma = aux; 145 struct mii_data *mii = ma->mii_data; 146 const struct mii_phydesc *mpd; 147 148 mpd = mii_phy_match(ma, makphys); 149 aprint_naive(": Media interface\n"); 150 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 151 152 sc->mii_dev = self; 153 sc->mii_inst = mii->mii_instance; 154 sc->mii_phy = ma->mii_phyno; 155 sc->mii_funcs = &makphy_funcs; 156 sc->mii_pdata = mii; 157 sc->mii_flags = ma->mii_flags; 158 sc->mii_anegticks = MII_ANEGTICKS; 159 160 PHY_RESET(sc); 161 162 sc->mii_capabilities = 163 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 164 if (sc->mii_capabilities & BMSR_EXTSTAT) 165 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 166 167 aprint_normal_dev(self, ""); 168 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 169 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 170 aprint_error("no media present"); 171 else 172 mii_phy_add_media(sc); 173 aprint_normal("\n"); 174 } 175 176 static void 177 makphy_reset(struct mii_softc *sc) 178 { 179 uint16_t pscr; 180 181 /* Assert CRS on transmit */ 182 pscr = PHY_READ(sc, MII_MAKPHY_PSCR); 183 PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); 184 185 mii_phy_reset(sc); 186 } 187 188 static int 189 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 190 { 191 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 192 int reg; 193 194 switch (cmd) { 195 case MII_POLLSTAT: 196 /* 197 * If we're not polling our PHY instance, just return. 198 */ 199 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 200 return (0); 201 break; 202 203 case MII_MEDIACHG: 204 /* 205 * If the media indicates a different PHY instance, 206 * isolate ourselves. 207 */ 208 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 209 reg = PHY_READ(sc, MII_BMCR); 210 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 211 return (0); 212 } 213 214 /* 215 * If the interface is not up, don't do anything. 216 */ 217 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 218 break; 219 220 mii_phy_setmedia(sc); 221 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 222 /* 223 * when not in auto mode, we need to restart nego 224 * anyway, or a switch from a fixed mode to another 225 * fixed mode may not be seen by the switch. 226 */ 227 PHY_WRITE(sc, MII_BMCR, 228 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 229 } 230 break; 231 232 case MII_TICK: 233 /* 234 * If we're not currently selected, just return. 235 */ 236 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 237 return (0); 238 239 if (mii_phy_tick(sc) == EJUSTRETURN) 240 return (0); 241 break; 242 243 case MII_DOWN: 244 mii_phy_down(sc); 245 return (0); 246 } 247 248 /* Update the media status. */ 249 mii_phy_status(sc); 250 251 /* Callback if something changed. */ 252 mii_phy_update(sc, cmd); 253 return (0); 254 } 255 256 static void 257 makphy_status(struct mii_softc *sc) 258 { 259 struct mii_data *mii = sc->mii_pdata; 260 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 261 int bmcr, pssr, gtsr; 262 263 mii->mii_media_status = IFM_AVALID; 264 mii->mii_media_active = IFM_ETHER; 265 266 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 267 268 if (pssr & PSSR_LINK) 269 mii->mii_media_status |= IFM_ACTIVE; 270 271 bmcr = PHY_READ(sc, MII_BMCR); 272 if (bmcr & BMCR_ISO) { 273 mii->mii_media_active |= IFM_NONE; 274 mii->mii_media_status = 0; 275 return; 276 } 277 278 if (bmcr & BMCR_LOOP) 279 mii->mii_media_active |= IFM_LOOP; 280 281 if (bmcr & BMCR_AUTOEN) { 282 /* 283 * The media status bits are only valid of autonegotiation 284 * has completed (or it's disabled). 285 */ 286 if ((pssr & PSSR_RESOLVED) == 0) { 287 /* Erg, still trying, I guess... */ 288 mii->mii_media_active |= IFM_NONE; 289 return; 290 } 291 292 switch (PSSR_SPEED_get(pssr)) { 293 case SPEED_1000: 294 mii->mii_media_active |= IFM_1000_T; 295 gtsr = PHY_READ(sc, MII_100T2SR); 296 if (gtsr & GTSR_MS_RES) 297 mii->mii_media_active |= IFM_ETH_MASTER; 298 break; 299 300 case SPEED_100: 301 mii->mii_media_active |= IFM_100_TX; 302 break; 303 304 case SPEED_10: 305 mii->mii_media_active |= IFM_10_T; 306 break; 307 308 default: 309 mii->mii_media_active |= IFM_NONE; 310 mii->mii_media_status = 0; 311 return; 312 } 313 314 if (pssr & PSSR_DUPLEX) 315 mii->mii_media_active |= 316 IFM_FDX | mii_phy_flowstatus(sc); 317 } else 318 mii->mii_media_active = ife->ifm_media; 319 } 320
Indexes created Sat Oct 25 16:10:12 GMT 2025