makphy.c revision 1.26.4.4
1 /* $NetBSD: makphy.c,v 1.26.4.4 2010/08/11 22:53:40 yamt 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 1.26.4.4 2010/08/11 22:53:40 yamt 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_E1116R, 114 MII_STR_xxMARVELL_E1116R }, 115 116 { 0, 0, 117 NULL }, 118 }; 119 120 static int 121 makphymatch(device_t parent, cfdata_t match, void *aux) 122 { 123 struct mii_attach_args *ma = aux; 124 125 if (mii_phy_match(ma, makphys) != NULL) 126 return (10); 127 128 return (0); 129 } 130 131 static void 132 makphyattach(device_t parent, device_t self, void *aux) 133 { 134 struct mii_softc *sc = device_private(self); 135 struct mii_attach_args *ma = aux; 136 struct mii_data *mii = ma->mii_data; 137 const struct mii_phydesc *mpd; 138 139 mpd = mii_phy_match(ma, makphys); 140 aprint_naive(": Media interface\n"); 141 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 142 143 sc->mii_dev = self; 144 sc->mii_inst = mii->mii_instance; 145 sc->mii_phy = ma->mii_phyno; 146 sc->mii_funcs = &makphy_funcs; 147 sc->mii_pdata = mii; 148 sc->mii_flags = ma->mii_flags; 149 sc->mii_anegticks = MII_ANEGTICKS; 150 151 PHY_RESET(sc); 152 153 sc->mii_capabilities = 154 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 155 if (sc->mii_capabilities & BMSR_EXTSTAT) 156 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 157 158 aprint_normal_dev(self, ""); 159 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 160 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 161 aprint_error("no media present"); 162 else 163 mii_phy_add_media(sc); 164 aprint_normal("\n"); 165 } 166 167 static void 168 makphy_reset(struct mii_softc *sc) 169 { 170 uint16_t pscr; 171 172 /* Assert CRS on transmit */ 173 pscr = PHY_READ(sc, MII_MAKPHY_PSCR); 174 PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); 175 176 mii_phy_reset(sc); 177 } 178 179 static int 180 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 181 { 182 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 183 int reg; 184 185 switch (cmd) { 186 case MII_POLLSTAT: 187 /* 188 * If we're not polling our PHY instance, just return. 189 */ 190 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 191 return (0); 192 break; 193 194 case MII_MEDIACHG: 195 /* 196 * If the media indicates a different PHY instance, 197 * isolate ourselves. 198 */ 199 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 200 reg = PHY_READ(sc, MII_BMCR); 201 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 202 return (0); 203 } 204 205 /* 206 * If the interface is not up, don't do anything. 207 */ 208 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 209 break; 210 211 mii_phy_setmedia(sc); 212 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 213 /* 214 * when not in auto mode, we need to restart nego 215 * anyway, or a switch from a fixed mode to another 216 * fixed mode may not be seen by the switch. 217 */ 218 PHY_WRITE(sc, MII_BMCR, 219 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 220 } 221 break; 222 223 case MII_TICK: 224 /* 225 * If we're not currently selected, just return. 226 */ 227 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 228 return (0); 229 230 if (mii_phy_tick(sc) == EJUSTRETURN) 231 return (0); 232 break; 233 234 case MII_DOWN: 235 mii_phy_down(sc); 236 return (0); 237 } 238 239 /* Update the media status. */ 240 mii_phy_status(sc); 241 242 /* Callback if something changed. */ 243 mii_phy_update(sc, cmd); 244 return (0); 245 } 246 247 static void 248 makphy_status(struct mii_softc *sc) 249 { 250 struct mii_data *mii = sc->mii_pdata; 251 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 252 int bmcr, pssr, gtsr; 253 254 mii->mii_media_status = IFM_AVALID; 255 mii->mii_media_active = IFM_ETHER; 256 257 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 258 259 if (pssr & PSSR_LINK) 260 mii->mii_media_status |= IFM_ACTIVE; 261 262 bmcr = PHY_READ(sc, MII_BMCR); 263 if (bmcr & BMCR_ISO) { 264 mii->mii_media_active |= IFM_NONE; 265 mii->mii_media_status = 0; 266 return; 267 } 268 269 if (bmcr & BMCR_LOOP) 270 mii->mii_media_active |= IFM_LOOP; 271 272 if (bmcr & BMCR_AUTOEN) { 273 /* 274 * The media status bits are only valid of autonegotiation 275 * has completed (or it's disabled). 276 */ 277 if ((pssr & PSSR_RESOLVED) == 0) { 278 /* Erg, still trying, I guess... */ 279 mii->mii_media_active |= IFM_NONE; 280 return; 281 } 282 283 switch (PSSR_SPEED_get(pssr)) { 284 case SPEED_1000: 285 mii->mii_media_active |= IFM_1000_T; 286 gtsr = PHY_READ(sc, MII_100T2SR); 287 if (gtsr & GTSR_MS_RES) 288 mii->mii_media_active |= IFM_ETH_MASTER; 289 break; 290 291 case SPEED_100: 292 mii->mii_media_active |= IFM_100_TX; 293 break; 294 295 case SPEED_10: 296 mii->mii_media_active |= IFM_10_T; 297 break; 298 299 default: 300 mii->mii_media_active |= IFM_NONE; 301 mii->mii_media_status = 0; 302 return; 303 } 304 305 if (pssr & PSSR_DUPLEX) 306 mii->mii_media_active |= 307 IFM_FDX | mii_phy_flowstatus(sc); 308 } else 309 mii->mii_media_active = ife->ifm_media; 310 } 311
Indexes created Thu Oct 23 22:10:10 GMT 2025