makphy.c revision 1.35
1 /* $NetBSD: makphy.c,v 1.35 2010/12/11 18:10:42 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 * 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 1.35 2010/12/11 18:10:42 matt 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 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149, 105 MII_STR_xxMARVELL_E1149 }, 106 107 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 108 MII_STR_xxMARVELL_E1111 }, 109 110 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 111 MII_STR_xxMARVELL_E1116 }, 112 113 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, 114 MII_STR_xxMARVELL_E1145 }, 115 116 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R, 117 MII_STR_xxMARVELL_E1116R }, 118 119 { 0, 0, 120 NULL }, 121 }; 122 123 static int 124 makphymatch(device_t parent, cfdata_t match, void *aux) 125 { 126 struct mii_attach_args *ma = aux; 127 128 if (mii_phy_match(ma, makphys) != NULL) 129 return (10); 130 131 return (0); 132 } 133 134 static void 135 makphyattach(device_t parent, device_t self, void *aux) 136 { 137 struct mii_softc *sc = device_private(self); 138 struct mii_attach_args *ma = aux; 139 struct mii_data *mii = ma->mii_data; 140 const struct mii_phydesc *mpd; 141 142 mpd = mii_phy_match(ma, makphys); 143 aprint_naive(": Media interface\n"); 144 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 145 146 sc->mii_dev = self; 147 sc->mii_inst = mii->mii_instance; 148 sc->mii_phy = ma->mii_phyno; 149 sc->mii_funcs = &makphy_funcs; 150 sc->mii_pdata = mii; 151 sc->mii_flags = ma->mii_flags; 152 sc->mii_anegticks = MII_ANEGTICKS; 153 154 PHY_RESET(sc); 155 156 sc->mii_capabilities = 157 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 158 if (sc->mii_capabilities & BMSR_EXTSTAT) 159 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 160 161 aprint_normal_dev(self, ""); 162 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 163 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 164 aprint_error("no media present"); 165 else 166 mii_phy_add_media(sc); 167 aprint_normal("\n"); 168 } 169 170 static void 171 makphy_reset(struct mii_softc *sc) 172 { 173 uint16_t pscr; 174 175 /* Assert CRS on transmit */ 176 pscr = PHY_READ(sc, MII_MAKPHY_PSCR); 177 PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); 178 179 mii_phy_reset(sc); 180 } 181 182 static int 183 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 184 { 185 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 186 int reg; 187 188 switch (cmd) { 189 case MII_POLLSTAT: 190 /* 191 * If we're not polling our PHY instance, just return. 192 */ 193 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 194 return (0); 195 break; 196 197 case MII_MEDIACHG: 198 /* 199 * If the media indicates a different PHY instance, 200 * isolate ourselves. 201 */ 202 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 203 reg = PHY_READ(sc, MII_BMCR); 204 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 205 return (0); 206 } 207 208 /* 209 * If the interface is not up, don't do anything. 210 */ 211 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 212 break; 213 214 mii_phy_setmedia(sc); 215 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 216 /* 217 * when not in auto mode, we need to restart nego 218 * anyway, or a switch from a fixed mode to another 219 * fixed mode may not be seen by the switch. 220 */ 221 PHY_WRITE(sc, MII_BMCR, 222 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 223 } 224 break; 225 226 case MII_TICK: 227 /* 228 * If we're not currently selected, just return. 229 */ 230 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 231 return (0); 232 233 if (mii_phy_tick(sc) == EJUSTRETURN) 234 return (0); 235 break; 236 237 case MII_DOWN: 238 mii_phy_down(sc); 239 return (0); 240 } 241 242 /* Update the media status. */ 243 mii_phy_status(sc); 244 245 /* Callback if something changed. */ 246 mii_phy_update(sc, cmd); 247 return (0); 248 } 249 250 static void 251 makphy_status(struct mii_softc *sc) 252 { 253 struct mii_data *mii = sc->mii_pdata; 254 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 255 int bmcr, pssr, gtsr; 256 257 mii->mii_media_status = IFM_AVALID; 258 mii->mii_media_active = IFM_ETHER; 259 260 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 261 262 if (pssr & PSSR_LINK) 263 mii->mii_media_status |= IFM_ACTIVE; 264 265 bmcr = PHY_READ(sc, MII_BMCR); 266 if (bmcr & BMCR_ISO) { 267 mii->mii_media_active |= IFM_NONE; 268 mii->mii_media_status = 0; 269 return; 270 } 271 272 if (bmcr & BMCR_LOOP) 273 mii->mii_media_active |= IFM_LOOP; 274 275 if (bmcr & BMCR_AUTOEN) { 276 /* 277 * The media status bits are only valid of autonegotiation 278 * has completed (or it's disabled). 279 */ 280 if ((pssr & PSSR_RESOLVED) == 0) { 281 /* Erg, still trying, I guess... */ 282 mii->mii_media_active |= IFM_NONE; 283 return; 284 } 285 286 switch (PSSR_SPEED_get(pssr)) { 287 case SPEED_1000: 288 mii->mii_media_active |= IFM_1000_T; 289 gtsr = PHY_READ(sc, MII_100T2SR); 290 if (gtsr & GTSR_MS_RES) 291 mii->mii_media_active |= IFM_ETH_MASTER; 292 break; 293 294 case SPEED_100: 295 mii->mii_media_active |= IFM_100_TX; 296 break; 297 298 case SPEED_10: 299 mii->mii_media_active |= IFM_10_T; 300 break; 301 302 default: 303 mii->mii_media_active |= IFM_NONE; 304 mii->mii_media_status = 0; 305 return; 306 } 307 308 if (pssr & PSSR_DUPLEX) 309 mii->mii_media_active |= 310 IFM_FDX | mii_phy_flowstatus(sc); 311 } else 312 mii->mii_media_active = ife->ifm_media; 313 } 314
Indexes created Tue Sep 23 14:10:03 GMT 2025