makphy.c revision 1.31
1 /* $NetBSD: makphy.c,v 1.31 2009/04/19 11:17:46 msaitoh 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 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by Manuel Bouyer. 47 * 4. The name of the author may not be used to endorse or promote products 48 * derived from this software without specific prior written permission. 49 * 50 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 51 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 53 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 54 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 55 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 59 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 */ 61 62 /* 63 * Driver for the Marvell 88E1000 ``Alaska'' 10/100/1000 PHY. 64 */ 65 66 #include <sys/cdefs.h> 67 __KERNEL_RCSID(0, "$NetBSD: makphy.c,v 1.31 2009/04/19 11:17:46 msaitoh Exp $"); 68 69 #include <sys/param.h> 70 #include <sys/systm.h> 71 #include <sys/kernel.h> 72 #include <sys/device.h> 73 #include <sys/socket.h> 74 #include <sys/errno.h> 75 76 #include <net/if.h> 77 #include <net/if_media.h> 78 79 #include <dev/mii/mii.h> 80 #include <dev/mii/miivar.h> 81 #include <dev/mii/miidevs.h> 82 83 #include <dev/mii/makphyreg.h> 84 85 static int makphymatch(device_t, cfdata_t, void *); 86 static void makphyattach(device_t, device_t, void *); 87 88 CFATTACH_DECL_NEW(makphy, sizeof(struct mii_softc), 89 makphymatch, makphyattach, mii_phy_detach, mii_phy_activate); 90 91 static int makphy_service(struct mii_softc *, struct mii_data *, int); 92 static void makphy_status(struct mii_softc *); 93 static void makphy_reset(struct mii_softc *); 94 95 static const struct mii_phy_funcs makphy_funcs = { 96 makphy_service, makphy_status, makphy_reset, 97 }; 98 99 static const struct mii_phydesc makphys[] = { 100 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_3, 101 MII_STR_xxMARVELL_E1000_3 }, 102 103 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, 104 MII_STR_xxMARVELL_E1000_5 }, 105 106 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1011, 107 MII_STR_xxMARVELL_E1011 }, 108 109 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, 110 MII_STR_xxMARVELL_E1111 }, 111 112 { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1116, 113 MII_STR_xxMARVELL_E1116 }, 114 115 { 0, 0, 116 NULL }, 117 }; 118 119 static int 120 makphymatch(device_t parent, cfdata_t match, void *aux) 121 { 122 struct mii_attach_args *ma = aux; 123 124 if (mii_phy_match(ma, makphys) != NULL) 125 return (10); 126 127 return (0); 128 } 129 130 static void 131 makphyattach(device_t parent, device_t self, void *aux) 132 { 133 struct mii_softc *sc = device_private(self); 134 struct mii_attach_args *ma = aux; 135 struct mii_data *mii = ma->mii_data; 136 const struct mii_phydesc *mpd; 137 138 mpd = mii_phy_match(ma, makphys); 139 aprint_naive(": Media interface\n"); 140 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 141 142 sc->mii_dev = self; 143 sc->mii_inst = mii->mii_instance; 144 sc->mii_phy = ma->mii_phyno; 145 sc->mii_funcs = &makphy_funcs; 146 sc->mii_pdata = mii; 147 sc->mii_flags = ma->mii_flags; 148 sc->mii_anegticks = MII_ANEGTICKS; 149 150 PHY_RESET(sc); 151 152 sc->mii_capabilities = 153 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 154 if (sc->mii_capabilities & BMSR_EXTSTAT) 155 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 156 157 aprint_normal_dev(self, ""); 158 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 159 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 160 aprint_error("no media present"); 161 else 162 mii_phy_add_media(sc); 163 aprint_normal("\n"); 164 } 165 166 static void 167 makphy_reset(struct mii_softc *sc) 168 { 169 uint16_t pscr; 170 171 /* Assert CRS on transmit */ 172 pscr = PHY_READ(sc, MII_MAKPHY_PSCR); 173 PHY_WRITE(sc, MII_MAKPHY_PSCR, pscr | PSCR_CRS_ON_TX); 174 175 mii_phy_reset(sc); 176 } 177 178 static int 179 makphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 180 { 181 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 182 int reg; 183 184 switch (cmd) { 185 case MII_POLLSTAT: 186 /* 187 * If we're not polling our PHY instance, just return. 188 */ 189 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 190 return (0); 191 break; 192 193 case MII_MEDIACHG: 194 /* 195 * If the media indicates a different PHY instance, 196 * isolate ourselves. 197 */ 198 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 199 reg = PHY_READ(sc, MII_BMCR); 200 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 201 return (0); 202 } 203 204 /* 205 * If the interface is not up, don't do anything. 206 */ 207 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 208 break; 209 210 mii_phy_setmedia(sc); 211 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { 212 /* 213 * when not in auto mode, we need to restart nego 214 * anyway, or a switch from a fixed mode to another 215 * fixed mode may not be seen by the switch. 216 */ 217 PHY_WRITE(sc, MII_BMCR, 218 PHY_READ(sc, MII_BMCR) | BMCR_STARTNEG); 219 } 220 break; 221 222 case MII_TICK: 223 /* 224 * If we're not currently selected, just return. 225 */ 226 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 227 return (0); 228 229 if (mii_phy_tick(sc) == EJUSTRETURN) 230 return (0); 231 break; 232 233 case MII_DOWN: 234 mii_phy_down(sc); 235 return (0); 236 } 237 238 /* Update the media status. */ 239 mii_phy_status(sc); 240 241 /* Callback if something changed. */ 242 mii_phy_update(sc, cmd); 243 return (0); 244 } 245 246 static void 247 makphy_status(struct mii_softc *sc) 248 { 249 struct mii_data *mii = sc->mii_pdata; 250 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 251 int bmcr, pssr, gtsr; 252 253 mii->mii_media_status = IFM_AVALID; 254 mii->mii_media_active = IFM_ETHER; 255 256 pssr = PHY_READ(sc, MII_MAKPHY_PSSR); 257 258 if (pssr & PSSR_LINK) 259 mii->mii_media_status |= IFM_ACTIVE; 260 261 bmcr = PHY_READ(sc, MII_BMCR); 262 if (bmcr & BMCR_ISO) { 263 mii->mii_media_active |= IFM_NONE; 264 mii->mii_media_status = 0; 265 return; 266 } 267 268 if (bmcr & BMCR_LOOP) 269 mii->mii_media_active |= IFM_LOOP; 270 271 if (bmcr & BMCR_AUTOEN) { 272 /* 273 * The media status bits are only valid of autonegotiation 274 * has completed (or it's disabled). 275 */ 276 if ((pssr & PSSR_RESOLVED) == 0) { 277 /* Erg, still trying, I guess... */ 278 mii->mii_media_active |= IFM_NONE; 279 return; 280 } 281 282 switch (PSSR_SPEED_get(pssr)) { 283 case SPEED_1000: 284 mii->mii_media_active |= IFM_1000_T; 285 gtsr = PHY_READ(sc, MII_100T2SR); 286 if (gtsr & GTSR_MS_RES) 287 mii->mii_media_active |= IFM_ETH_MASTER; 288 break; 289 290 case SPEED_100: 291 mii->mii_media_active |= IFM_100_TX; 292 break; 293 294 case SPEED_10: 295 mii->mii_media_active |= IFM_10_T; 296 break; 297 298 default: 299 mii->mii_media_active |= IFM_NONE; 300 mii->mii_media_status = 0; 301 return; 302 } 303 304 if (pssr & PSSR_DUPLEX) 305 mii->mii_media_active |= 306 IFM_FDX | mii_phy_flowstatus(sc); 307 } else 308 mii->mii_media_active = ife->ifm_media; 309 } 310
Indexes created Wed Sep 24 05:09:52 GMT 2025