makphy.c revision 1.38
1 /* $NetBSD: makphy.c,v 1.38 2013/12/21 15:20:39 kiyohara 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 1.38 2013/12/21 15:20:39 kiyohara 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 #if 0 105 /* doesn't work on eg. HP XW9400 */ 106 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1149, 107 MII_STR_xxMARVELL_E1149 }, 108 #endif 109 110 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 111 MII_STR_xxMARVELL_E1111 }, 112 113 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 114 MII_STR_xxMARVELL_E1116 }, 115 116 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1145, 117 MII_STR_xxMARVELL_E1145 }, 118 119 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R, 120 MII_STR_xxMARVELL_E1116R }, 121 122 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116R_29, 123 MII_STR_xxMARVELL_E1116R_29 }, 124 125 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1543, 126 MII_STR_xxMARVELL_E1543 }, 127 128 { 0, 0, 129 NULL }, 130 }; 131 132 static int 133 makphymatch(device_t parent, cfdata_t match, void *aux) 134 { 135 struct mii_attach_args *ma = aux; 136 137 if (mii_phy_match(ma, makphys) != NULL) 138 return (10); 139 140 return (0); 141 } 142 143 static void 144 makphyattach(device_t parent, device_t self, void *aux) 145 { 146 struct mii_softc *sc = device_private(self); 147 struct mii_attach_args *ma = aux; 148 struct mii_data *mii = ma->mii_data; 149 const struct mii_phydesc *mpd; 150 151 mpd = mii_phy_match(ma, makphys); 152 aprint_naive(": Media interface\n"); 153 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 154 155 sc->mii_dev = self; 156 sc->mii_inst = mii->mii_instance; 157 sc->mii_phy = ma->mii_phyno; 158 sc->mii_funcs = &makphy_funcs; 159 sc->mii_pdata = mii; 160 sc->mii_flags = ma->mii_flags; 161 sc->mii_anegticks = MII_ANEGTICKS; 162 163 PHY_RESET(sc); 164 165 sc->mii_capabilities = 166 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 167 if (sc->mii_capabilities & BMSR_EXTSTAT) 168 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 169 170 aprint_normal_dev(self, ""); 171 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 172 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 173 aprint_error("no media present"); 174 else 175 mii_phy_add_media(sc); 176 aprint_normal("\n"); 177 } 178 179 static void 180 makphy_reset(struct mii_softc *sc) 181 { 182 uint16_t pscr; 183 184 /* Assert CRS on transmit */ 185 pscr = PHY_READ(sc, MII_MAKPHY_PSCR); 186 PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); 187 188 mii_phy_reset(sc); 189 } 190 191 static int 192 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 193 { 194 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 195 int reg; 196 197 switch (cmd) { 198 case MII_POLLSTAT: 199 /* 200 * If we're not polling our PHY instance, just return. 201 */ 202 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 203 return (0); 204 break; 205 206 case MII_MEDIACHG: 207 /* 208 * If the media indicates a different PHY instance, 209 * isolate ourselves. 210 */ 211 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 212 reg = PHY_READ(sc, MII_BMCR); 213 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 214 return (0); 215 } 216 217 /* 218 * If the interface is not up, don't do anything. 219 */ 220 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 221 break; 222 223 mii_phy_setmedia(sc); 224 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 225 /* 226 * when not in auto mode, we need to restart nego 227 * anyway, or a switch from a fixed mode to another 228 * fixed mode may not be seen by the switch. 229 */ 230 PHY_WRITE(sc, MII_BMCR, 231 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 232 } 233 break; 234 235 case MII_TICK: 236 /* 237 * If we're not currently selected, just return. 238 */ 239 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 240 return (0); 241 242 if (mii_phy_tick(sc) == EJUSTRETURN) 243 return (0); 244 break; 245 246 case MII_DOWN: 247 mii_phy_down(sc); 248 return (0); 249 } 250 251 /* Update the media status. */ 252 mii_phy_status(sc); 253 254 /* Callback if something changed. */ 255 mii_phy_update(sc, cmd); 256 return (0); 257 } 258 259 static void 260 makphy_status(struct mii_softc *sc) 261 { 262 struct mii_data *mii = sc->mii_pdata; 263 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 264 int bmcr, pssr, gtsr; 265 266 mii->mii_media_status = IFM_AVALID; 267 mii->mii_media_active = IFM_ETHER; 268 269 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 270 271 if (pssr & PSSR_LINK) 272 mii->mii_media_status |= IFM_ACTIVE; 273 274 bmcr = PHY_READ(sc, MII_BMCR); 275 if (bmcr & BMCR_ISO) { 276 mii->mii_media_active |= IFM_NONE; 277 mii->mii_media_status = 0; 278 return; 279 } 280 281 if (bmcr & BMCR_LOOP) 282 mii->mii_media_active |= IFM_LOOP; 283 284 if (bmcr & BMCR_AUTOEN) { 285 /* 286 * The media status bits are only valid of autonegotiation 287 * has completed (or it's disabled). 288 */ 289 if ((pssr & PSSR_RESOLVED) == 0) { 290 /* Erg, still trying, I guess... */ 291 mii->mii_media_active |= IFM_NONE; 292 return; 293 } 294 295 switch (PSSR_SPEED_get(pssr)) { 296 case SPEED_1000: 297 mii->mii_media_active |= IFM_1000_T; 298 gtsr = PHY_READ(sc, MII_100T2SR); 299 if (gtsr & GTSR_MS_RES) 300 mii->mii_media_active |= IFM_ETH_MASTER; 301 break; 302 303 case SPEED_100: 304 mii->mii_media_active |= IFM_100_TX; 305 break; 306 307 case SPEED_10: 308 mii->mii_media_active |= IFM_10_T; 309 break; 310 311 default: 312 mii->mii_media_active |= IFM_NONE; 313 mii->mii_media_status = 0; 314 return; 315 } 316 317 if (pssr & PSSR_DUPLEX) 318 mii->mii_media_active |= 319 IFM_FDX | mii_phy_flowstatus(sc); 320 } else 321 mii->mii_media_active = ife->ifm_media; 322 } 323
Indexes created Fri Sep 26 20:09:58 GMT 2025