makphy.c revision 1.24
1 /* $NetBSD: makphy.c,v 1.24 2007/12/09 20:28:03 jmcneill 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE 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 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by Manuel Bouyer. 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 /* 70 * Driver for the Marvell 88E1000 ``Alaska'' 10/100/1000 PHY. 71 */ 72 73 #include <sys/cdefs.h> 74 __KERNEL_RCSID(0, "$NetBSD: makphy.c,v 1.24 2007/12/09 20:28:03 jmcneill Exp $"); 75 76 #include <sys/param.h> 77 #include <sys/systm.h> 78 #include <sys/kernel.h> 79 #include <sys/device.h> 80 #include <sys/socket.h> 81 #include <sys/errno.h> 82 83 #include <net/if.h> 84 #include <net/if_media.h> 85 86 #include <dev/mii/mii.h> 87 #include <dev/mii/miivar.h> 88 #include <dev/mii/miidevs.h> 89 90 #include <dev/mii/makphyreg.h> 91 92 static int makphymatch(struct device *, struct cfdata *, void *); 93 static void makphyattach(struct device *, struct device *, void *); 94 95 CFATTACH_DECL(makphy, sizeof(struct mii_softc), 96 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); 97 98 static int makphy_service(struct mii_softc *, struct mii_data *, int); 99 static void makphy_status(struct mii_softc *); 100 static void makphy_reset(struct mii_softc *); 101 102 static const struct mii_phy_funcs makphy_funcs = { 103 makphy_service, makphy_status, makphy_reset, 104 }; 105 106 static const struct mii_phydesc makphys[] = { 107 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 108 MII_STR_xxMARVELL_E1000_3 }, 109 110 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 111 MII_STR_xxMARVELL_E1000_5 }, 112 113 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 114 MII_STR_xxMARVELL_E1011 }, 115 116 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 117 MII_STR_xxMARVELL_E1111 }, 118 119 { 0, 0, 120 NULL }, 121 }; 122 123 static int 124 makphymatch(struct device *parent, struct cfdata *match, 125 void *aux) 126 { 127 struct mii_attach_args *ma = aux; 128 129 if (mii_phy_match(ma, makphys) != NULL) 130 return (10); 131 132 return (0); 133 } 134 135 static void 136 makphyattach(struct device *parent, struct device *self, void *aux) 137 { 138 struct mii_softc *sc = device_private(self); 139 struct mii_attach_args *ma = aux; 140 struct mii_data *mii = ma->mii_data; 141 const struct mii_phydesc *mpd; 142 143 mpd = mii_phy_match(ma, makphys); 144 aprint_naive(": Media interface\n"); 145 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 146 147 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("%s: ", sc->mii_dev.dv_xname); 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 if (!pmf_device_register(self, NULL, mii_phy_resume)) 170 aprint_error_dev(self, "couldn't establish power handler\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 Sat Sep 27 21:09:56 GMT 2025