makphy.c revision 1.33
1 /* $NetBSD: makphy.c,v 1.33 2009/12/14 00:51:06 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 1.33 2009/12/14 00:51:06 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 { 0, 0, 114 NULL }, 115 }; 116 117 static int 118 makphymatch(device_t parent, cfdata_t match, void *aux) 119 { 120 struct mii_attach_args *ma = aux; 121 122 if (mii_phy_match(ma, makphys) != NULL) 123 return (10); 124 125 return (0); 126 } 127 128 static void 129 makphyattach(device_t parent, device_t self, void *aux) 130 { 131 struct mii_softc *sc = device_private(self); 132 struct mii_attach_args *ma = aux; 133 struct mii_data *mii = ma->mii_data; 134 const struct mii_phydesc *mpd; 135 136 mpd = mii_phy_match(ma, makphys); 137 aprint_naive(": Media interface\n"); 138 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 139 140 sc->mii_dev = self; 141 sc->mii_inst = mii->mii_instance; 142 sc->mii_phy = ma->mii_phyno; 143 sc->mii_funcs = &makphy_funcs; 144 sc->mii_pdata = mii; 145 sc->mii_flags = ma->mii_flags; 146 sc->mii_anegticks = MII_ANEGTICKS; 147 148 PHY_RESET(sc); 149 150 sc->mii_capabilities = 151 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 152 if (sc->mii_capabilities & BMSR_EXTSTAT) 153 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 154 155 aprint_normal_dev(self, ""); 156 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 157 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 158 aprint_error("no media present"); 159 else 160 mii_phy_add_media(sc); 161 aprint_normal("\n"); 162 } 163 164 static void 165 makphy_reset(struct mii_softc *sc) 166 { 167 uint16_t pscr; 168 169 /* Assert CRS on transmit */ 170 pscr = PHY_READ(sc, MII_MAKPHY_PSCR); 171 PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); 172 173 mii_phy_reset(sc); 174 } 175 176 static int 177 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 178 { 179 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 180 int reg; 181 182 switch (cmd) { 183 case MII_POLLSTAT: 184 /* 185 * If we're not polling our PHY instance, just return. 186 */ 187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 188 return (0); 189 break; 190 191 case MII_MEDIACHG: 192 /* 193 * If the media indicates a different PHY instance, 194 * isolate ourselves. 195 */ 196 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 197 reg = PHY_READ(sc, MII_BMCR); 198 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 199 return (0); 200 } 201 202 /* 203 * If the interface is not up, don't do anything. 204 */ 205 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 206 break; 207 208 mii_phy_setmedia(sc); 209 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 210 /* 211 * when not in auto mode, we need to restart nego 212 * anyway, or a switch from a fixed mode to another 213 * fixed mode may not be seen by the switch. 214 */ 215 PHY_WRITE(sc, MII_BMCR, 216 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 217 } 218 break; 219 220 case MII_TICK: 221 /* 222 * If we're not currently selected, just return. 223 */ 224 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 225 return (0); 226 227 if (mii_phy_tick(sc) == EJUSTRETURN) 228 return (0); 229 break; 230 231 case MII_DOWN: 232 mii_phy_down(sc); 233 return (0); 234 } 235 236 /* Update the media status. */ 237 mii_phy_status(sc); 238 239 /* Callback if something changed. */ 240 mii_phy_update(sc, cmd); 241 return (0); 242 } 243 244 static void 245 makphy_status(struct mii_softc *sc) 246 { 247 struct mii_data *mii = sc->mii_pdata; 248 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 249 int bmcr, pssr, gtsr; 250 251 mii->mii_media_status = IFM_AVALID; 252 mii->mii_media_active = IFM_ETHER; 253 254 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 255 256 if (pssr & PSSR_LINK) 257 mii->mii_media_status |= IFM_ACTIVE; 258 259 bmcr = PHY_READ(sc, MII_BMCR); 260 if (bmcr & BMCR_ISO) { 261 mii->mii_media_active |= IFM_NONE; 262 mii->mii_media_status = 0; 263 return; 264 } 265 266 if (bmcr & BMCR_LOOP) 267 mii->mii_media_active |= IFM_LOOP; 268 269 if (bmcr & BMCR_AUTOEN) { 270 /* 271 * The media status bits are only valid of autonegotiation 272 * has completed (or it's disabled). 273 */ 274 if ((pssr & PSSR_RESOLVED) == 0) { 275 /* Erg, still trying, I guess... */ 276 mii->mii_media_active |= IFM_NONE; 277 return; 278 } 279 280 switch (PSSR_SPEED_get(pssr)) { 281 case SPEED_1000: 282 mii->mii_media_active |= IFM_1000_T; 283 gtsr = PHY_READ(sc, MII_100T2SR); 284 if (gtsr & GTSR_MS_RES) 285 mii->mii_media_active |= IFM_ETH_MASTER; 286 break; 287 288 case SPEED_100: 289 mii->mii_media_active |= IFM_100_TX; 290 break; 291 292 case SPEED_10: 293 mii->mii_media_active |= IFM_10_T; 294 break; 295 296 default: 297 mii->mii_media_active |= IFM_NONE; 298 mii->mii_media_status = 0; 299 return; 300 } 301 302 if (pssr & PSSR_DUPLEX) 303 mii->mii_media_active |= 304 IFM_FDX | mii_phy_flowstatus(sc); 305 } else 306 mii->mii_media_active = ife->ifm_media; 307 } 308
Indexes created Thu Sep 25 16:09:42 GMT 2025