ipgphy.c revision 1.7
1 /* $NetBSD: ipgphy.c,v 1.7 2019/11/27 08:53:32 msaitoh Exp $ */ 2 /* $OpenBSD: ipgphy.c,v 1.19 2015/07/19 06:28:12 yuo Exp $ */ 3 4 /*- 5 * Copyright (c) 2006, Pyun YongHyeon <yongari (at) FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 */ 31 32 /* 33 * Driver for the IC Plus IP1000A/IP1001 10/100/1000 PHY. 34 */ 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: ipgphy.c,v 1.7 2019/11/27 08:53:32 msaitoh Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <sys/socket.h> 43 #include <sys/errno.h> 44 45 #include <net/if.h> 46 #include <net/if_media.h> 47 48 #include <dev/mii/mii.h> 49 #include <dev/mii/miivar.h> 50 #include <dev/mii/miidevs.h> 51 52 #include <dev/mii/ipgphyreg.h> 53 54 #include <dev/pci/if_stgereg.h> 55 56 static int ipgphy_match(device_t, cfdata_t, void *); 57 static void ipgphy_attach(device_t, device_t, void *); 58 59 CFATTACH_DECL_NEW(ipgphy, sizeof(struct mii_softc), 60 ipgphy_match, ipgphy_attach, mii_phy_detach, mii_phy_activate); 61 62 static int ipgphy_service(struct mii_softc *, struct mii_data *, int); 63 static void ipgphy_status(struct mii_softc *); 64 static int ipgphy_mii_phy_auto(struct mii_softc *, u_int); 65 static void ipgphy_load_dspcode(struct mii_softc *); 66 static void ipgphy_reset(struct mii_softc *); 67 68 static const struct mii_phy_funcs ipgphy_funcs = { 69 ipgphy_service, ipgphy_status, ipgphy_reset, 70 }; 71 72 static const struct mii_phydesc ipgphys[] = { 73 MII_PHY_DESC(xxICPLUS, IP1000A), 74 MII_PHY_DESC(xxICPLUS, IP1001), 75 MII_PHY_END, 76 }; 77 78 static int 79 ipgphy_match(device_t parent, cfdata_t match, void *aux) 80 { 81 struct mii_attach_args *ma = aux; 82 83 if (mii_phy_match(ma, ipgphys) != NULL) 84 return 10; 85 86 return 0; 87 } 88 89 static void 90 ipgphy_attach(device_t parent, device_t self, void *aux) 91 { 92 struct mii_softc *sc = device_private(self); 93 struct mii_attach_args *ma = aux; 94 struct mii_data *mii = ma->mii_data; 95 const struct mii_phydesc *mpd; 96 97 mpd = mii_phy_match(ma, ipgphys); 98 aprint_naive(": Media interface\n"); 99 aprint_normal(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); 100 101 sc->mii_dev = self; 102 sc->mii_inst = mii->mii_instance; 103 sc->mii_phy = ma->mii_phyno; 104 sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2); 105 sc->mii_mpd_model = MII_MODEL(ma->mii_id2); 106 sc->mii_mpd_rev = MII_REV(ma->mii_id2); 107 sc->mii_funcs = &ipgphy_funcs; 108 sc->mii_pdata = mii; 109 sc->mii_flags = ma->mii_flags; 110 111 sc->mii_flags |= MIIF_NOISOLATE; 112 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 113 114 PHY_RESET(sc); 115 116 PHY_READ(sc, MII_BMSR, &sc->mii_capabilities); 117 sc->mii_capabilities &= ma->mii_capmask; 118 //sc->mii_capabilities &= ~BMSR_ANEG; 119 if (sc->mii_capabilities & BMSR_EXTSTAT) 120 PHY_READ(sc, MII_EXTSR, &sc->mii_extcapabilities); 121 122 aprint_normal_dev(self, ""); 123 mii_phy_add_media(sc); 124 aprint_normal("\n"); 125 } 126 127 static int 128 ipgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 129 { 130 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 131 uint16_t reg, speed; 132 133 switch (cmd) { 134 case MII_POLLSTAT: 135 /* If we're not polling our PHY instance, just return. */ 136 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 137 return 0; 138 break; 139 140 case MII_MEDIACHG: 141 /* 142 * If the media indicates a different PHY instance, 143 * isolate ourselves. 144 */ 145 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 146 PHY_READ(sc, MII_BMCR, ®); 147 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 148 return 0; 149 } 150 151 /* If the interface is not up, don't do anything. */ 152 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 153 break; 154 155 PHY_RESET(sc); 156 157 switch (IFM_SUBTYPE(ife->ifm_media)) { 158 case IFM_AUTO: 159 case IFM_1000_T: 160 /* 161 * This device is required to do auto negotiation 162 * on 1000BASE-T. 163 */ 164 (void)ipgphy_mii_phy_auto(sc, ife->ifm_media); 165 goto done; 166 break; 167 168 case IFM_100_TX: 169 speed = BMCR_S100; 170 break; 171 172 case IFM_10_T: 173 speed = BMCR_S10; 174 break; 175 176 default: 177 return EINVAL; 178 } 179 180 if ((ife->ifm_media & IFM_FDX) != 0) 181 speed |= BMCR_FDX; 182 183 PHY_WRITE(sc, MII_100T2CR, 0); 184 PHY_WRITE(sc, MII_BMCR, speed); 185 done: 186 break; 187 188 case MII_TICK: 189 /* If we're not currently selected, just return. */ 190 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 191 return 0; 192 193 /* Is the interface even up? */ 194 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 195 return 0; 196 197 /* Only used for autonegotiation. */ 198 if ((IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) && 199 (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)) { 200 sc->mii_ticks = 0; 201 break; 202 } 203 204 /* 205 * Check to see if we have link. If we do, we don't 206 * need to restart the autonegotiation process. Read 207 * the BMSR twice in case it's latched. 208 */ 209 PHY_READ(sc, MII_BMSR, ®); 210 PHY_READ(sc, MII_BMSR, ®); 211 if (reg & BMSR_LINK) { 212 /* 213 * Reset autonegotiation timer to 0 in case the link 214 * goes down in the next tick. 215 */ 216 sc->mii_ticks = 0; 217 /* See above. */ 218 break; 219 } 220 221 /* Announce link loss right after it happens */ 222 if (sc->mii_ticks++ == 0) 223 break; 224 225 /* Only retry autonegotiation every mii_anegticks seconds. */ 226 if (sc->mii_ticks <= sc->mii_anegticks) 227 break; 228 229 sc->mii_ticks = 0; 230 ipgphy_mii_phy_auto(sc, ife->ifm_media); 231 break; 232 } 233 234 /* Update the media status. */ 235 ipgphy_status(sc); 236 237 /* Callback if something changed. */ 238 mii_phy_update(sc, cmd); 239 return 0; 240 } 241 242 static void 243 ipgphy_status(struct mii_softc *sc) 244 { 245 struct mii_data *mii = sc->mii_pdata; 246 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 247 uint16_t bmsr, bmcr, stat, gtsr; 248 249 /* For IP1000A, use generic way */ 250 if (sc->mii_mpd_model == MII_MODEL_xxICPLUS_IP1000A) { 251 ukphy_status(sc); 252 return; 253 } 254 255 mii->mii_media_status = IFM_AVALID; 256 mii->mii_media_active = IFM_ETHER; 257 258 PHY_READ(sc, MII_BMSR, &bmsr); 259 PHY_READ(sc, MII_BMSR, &bmsr); 260 if (bmsr & BMSR_LINK) 261 mii->mii_media_status |= IFM_ACTIVE; 262 263 PHY_READ(sc, MII_BMCR, &bmcr); 264 if (bmcr & BMCR_LOOP) 265 mii->mii_media_active |= IFM_LOOP; 266 267 if (bmcr & BMCR_AUTOEN) { 268 if ((bmsr & BMSR_ACOMP) == 0) { 269 /* Erg, still trying, I guess... */ 270 mii->mii_media_active |= IFM_NONE; 271 return; 272 } 273 274 PHY_READ(sc, IPGPHY_LSR, &stat); 275 switch (stat & IPGPHY_LSR_SPEED_MASK) { 276 case IPGPHY_LSR_SPEED_10: 277 mii->mii_media_active |= IFM_10_T; 278 break; 279 case IPGPHY_LSR_SPEED_100: 280 mii->mii_media_active |= IFM_100_TX; 281 break; 282 case IPGPHY_LSR_SPEED_1000: 283 mii->mii_media_active |= IFM_1000_T; 284 break; 285 default: 286 mii->mii_media_active |= IFM_NONE; 287 return; 288 } 289 290 if (stat & IPGPHY_LSR_FULL_DUPLEX) 291 mii->mii_media_active |= IFM_FDX; 292 else 293 mii->mii_media_active |= IFM_HDX; 294 295 if (mii->mii_media_active & IFM_FDX) 296 mii->mii_media_active |= mii_phy_flowstatus(sc); 297 298 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 299 PHY_READ(sc, MII_100T2SR, >sr); 300 if (gtsr & GTSR_MS_RES) 301 mii->mii_media_active |= IFM_ETH_MASTER; 302 } 303 } else 304 mii->mii_media_active = ife->ifm_media; 305 } 306 307 static int 308 ipgphy_mii_phy_auto(struct mii_softc *sc, u_int media) 309 { 310 uint16_t reg = 0; 311 u_int subtype = IFM_SUBTYPE(media); 312 313 /* XXX Is it requreid ? */ 314 if (sc->mii_mpd_model == MII_MODEL_xxICPLUS_IP1001) { 315 PHY_READ(sc, MII_ANAR, ®); 316 reg &= ~(ANAR_PAUSE_SYM | ANAR_PAUSE_ASYM); 317 reg |= ANAR_NP; 318 } 319 320 if (subtype == IFM_AUTO) 321 reg |= ANAR_10 | ANAR_10_FD | ANAR_TX | ANAR_TX_FD; 322 323 if (sc->mii_flags & MIIF_DOPAUSE) 324 reg |= ANAR_PAUSE_SYM | ANAR_PAUSE_ASYM; 325 326 PHY_WRITE(sc, MII_ANAR, reg | ANAR_CSMA); 327 328 if (subtype == IFM_AUTO) 329 reg = GTCR_ADV_1000TFDX | GTCR_ADV_1000THDX; 330 else if (subtype == IFM_1000_T) { 331 if ((media & IFM_FDX) != 0) 332 reg = GTCR_ADV_1000TFDX; 333 else 334 reg = GTCR_ADV_1000THDX; 335 } else 336 reg = 0; 337 338 PHY_WRITE(sc, MII_100T2CR, reg); 339 340 PHY_WRITE(sc, MII_BMCR, BMCR_FDX | BMCR_AUTOEN | BMCR_STARTNEG); 341 342 return EJUSTRETURN; 343 } 344 345 static void 346 ipgphy_load_dspcode(struct mii_softc *sc) 347 { 348 PHY_WRITE(sc, 31, 0x0001); 349 PHY_WRITE(sc, 27, 0x01e0); 350 PHY_WRITE(sc, 31, 0x0002); 351 PHY_WRITE(sc, 27, 0xeb8e); 352 PHY_WRITE(sc, 31, 0x0000); 353 PHY_WRITE(sc, 30, 0x005e); 354 PHY_WRITE(sc, 9, 0x0700); 355 356 DELAY(50); 357 } 358 359 static void 360 ipgphy_reset(struct mii_softc *sc) 361 { 362 struct ifnet *ifp = sc->mii_pdata->mii_ifp; 363 uint16_t reg; 364 365 mii_phy_reset(sc); 366 367 /* Clear autoneg/full-duplex as we don't want it after reset */ 368 PHY_READ(sc, MII_BMCR, ®); 369 reg &= ~(BMCR_AUTOEN | BMCR_FDX); 370 PHY_WRITE(sc, MII_BMCR, reg); 371 372 if (sc->mii_mpd_model == MII_MODEL_xxICPLUS_IP1000A && 373 strcmp(ifp->if_xname, "stge") == 0) { 374 struct stge_softc *stge_sc = ifp->if_softc; 375 if (stge_sc->sc_rev >= 0x40 && stge_sc->sc_rev <= 0x4e) 376 ipgphy_load_dspcode(sc); 377 } 378 } 379
Indexes created Wed Oct 29 09:09:48 GMT 2025