makphy.c revision 1.36
1 /* $NetBSD: makphy.c,v 1.36 2011/11/12 11:10:49 sekiya 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 2011/11/12 11:10:49 sekiya 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 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R_29, 120 MII_STR_xxMARVELL_E1116R_29 }, 121 122 { 0, 0, 123 NULL }, 124 }; 125 126 static int 127 makphymatch(device_t parent, cfdata_t match, void *aux) 128 { 129 struct mii_attach_args *ma = aux; 130 131 if (mii_phy_match(ma, makphys) != NULL) 132 return (10); 133 134 return (0); 135 } 136 137 static void 138 makphyattach(device_t parent, device_t self, void *aux) 139 { 140 struct mii_softc *sc = device_private(self); 141 struct mii_attach_args *ma = aux; 142 struct mii_data *mii = ma->mii_data; 143 const struct mii_phydesc *mpd; 144 145 mpd = mii_phy_match(ma, makphys); 146 aprint_naive(": Media interface\n"); 147 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 148 149 sc->mii_dev = self; 150 sc->mii_inst = mii->mii_instance; 151 sc->mii_phy = ma->mii_phyno; 152 sc->mii_funcs = &makphy_funcs; 153 sc->mii_pdata = mii; 154 sc->mii_flags = ma->mii_flags; 155 sc->mii_anegticks = MII_ANEGTICKS; 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); 163 164 aprint_normal_dev(self, ""); 165 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 166 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 167 aprint_error("no media present"); 168 else 169 mii_phy_add_media(sc); 170 aprint_normal("\n"); 171 } 172 173 static void 174 makphy_reset(struct mii_softc *sc) 175 { 176 uint16_t pscr; 177 178 /* Assert CRS on transmit */ 179 pscr = PHY_READ(sc, MII_MAKPHY_PSCR); 180 PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); 181 182 mii_phy_reset(sc); 183 } 184 185 static int 186 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 187 { 188 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 189 int reg; 190 191 switch (cmd) { 192 case MII_POLLSTAT: 193 /* 194 * If we're not polling our PHY instance, just return. 195 */ 196 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 197 return (0); 198 break; 199 200 case MII_MEDIACHG: 201 /* 202 * If the media indicates a different PHY instance, 203 * isolate ourselves. 204 */ 205 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 206 reg = PHY_READ(sc, MII_BMCR); 207 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 208 return (0); 209 } 210 211 /* 212 * If the interface is not up, don't do anything. 213 */ 214 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 215 break; 216 217 mii_phy_setmedia(sc); 218 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 219 /* 220 * when not in auto mode, we need to restart nego 221 * anyway, or a switch from a fixed mode to another 222 * fixed mode may not be seen by the switch. 223 */ 224 PHY_WRITE(sc, MII_BMCR, 225 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 226 } 227 break; 228 229 case MII_TICK: 230 /* 231 * If we're not currently selected, just return. 232 */ 233 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 234 return (0); 235 236 if (mii_phy_tick(sc) == EJUSTRETURN) 237 return (0); 238 break; 239 240 case MII_DOWN: 241 mii_phy_down(sc); 242 return (0); 243 } 244 245 /* Update the media status. */ 246 mii_phy_status(sc); 247 248 /* Callback if something changed. */ 249 mii_phy_update(sc, cmd); 250 return (0); 251 } 252 253 static void 254 makphy_status(struct mii_softc *sc) 255 { 256 struct mii_data *mii = sc->mii_pdata; 257 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 258 int bmcr, pssr, gtsr; 259 260 mii->mii_media_status = IFM_AVALID; 261 mii->mii_media_active = IFM_ETHER; 262 263 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 264 265 if (pssr & PSSR_LINK) 266 mii->mii_media_status |= IFM_ACTIVE; 267 268 bmcr = PHY_READ(sc, MII_BMCR); 269 if (bmcr & BMCR_ISO) { 270 mii->mii_media_active |= IFM_NONE; 271 mii->mii_media_status = 0; 272 return; 273 } 274 275 if (bmcr & BMCR_LOOP) 276 mii->mii_media_active |= IFM_LOOP; 277 278 if (bmcr & BMCR_AUTOEN) { 279 /* 280 * The media status bits are only valid of autonegotiation 281 * has completed (or it's disabled). 282 */ 283 if ((pssr & PSSR_RESOLVED) == 0) { 284 /* Erg, still trying, I guess... */ 285 mii->mii_media_active |= IFM_NONE; 286 return; 287 } 288 289 switch (PSSR_SPEED_get(pssr)) { 290 case SPEED_1000: 291 mii->mii_media_active |= IFM_1000_T; 292 gtsr = PHY_READ(sc, MII_100T2SR); 293 if (gtsr & GTSR_MS_RES) 294 mii->mii_media_active |= IFM_ETH_MASTER; 295 break; 296 297 case SPEED_100: 298 mii->mii_media_active |= IFM_100_TX; 299 break; 300 301 case SPEED_10: 302 mii->mii_media_active |= IFM_10_T; 303 break; 304 305 default: 306 mii->mii_media_active |= IFM_NONE; 307 mii->mii_media_status = 0; 308 return; 309 } 310 311 if (pssr & PSSR_DUPLEX) 312 mii->mii_media_active |= 313 IFM_FDX | mii_phy_flowstatus(sc); 314 } else 315 mii->mii_media_active = ife->ifm_media; 316 } 317
Indexes created Fri Sep 26 20:09:58 GMT 2025