/* $OpenBSD: ipgphy.c,v 1.16 2013/12/28 03:30:41 deraadt Exp $ */ /*- * Copyright (c) 2006, Pyun YongHyeon * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice unmodified, this list of conditions, and the following * disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ /* * Driver for the IC Plus IP1000A/IP1001 10/100/1000 PHY. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include int ipgphy_probe(struct device *, void *, void *); void ipgphy_attach(struct device *, struct device *, void *); struct cfattach ipgphy_ca = { sizeof(struct mii_softc), ipgphy_probe, ipgphy_attach, mii_phy_detach }; struct cfdriver ipgphy_cd = { NULL, "ipgphy", DV_DULL }; int ipgphy_service(struct mii_softc *, struct mii_data *, int); void ipgphy_status(struct mii_softc *); int ipgphy_mii_phy_auto(struct mii_softc *); void ipgphy_load_dspcode(struct mii_softc *); void ipgphy_reset(struct mii_softc *); const struct mii_phy_funcs ipgphy_funcs = { ipgphy_service, ipgphy_status, ipgphy_reset, }; static const struct mii_phydesc ipgphys[] = { { MII_OUI_ICPLUS, MII_MODEL_ICPLUS_IP1000A, MII_STR_ICPLUS_IP1000A }, { MII_OUI_ICPLUS, MII_MODEL_ICPLUS_IP1001, MII_STR_ICPLUS_IP1001 }, { 0, 0 }, }; int ipgphy_probe(struct device *parent, void *match, void *aux) { struct mii_attach_args *ma = aux; if (mii_phy_match(ma, ipgphys) != NULL) return (10); return (0); } void ipgphy_attach(struct device *parent, struct device *self, void *aux) { struct mii_softc *sc = (struct mii_softc *)self; struct mii_attach_args *ma = aux; struct mii_data *mii = ma->mii_data; const struct mii_phydesc *mpd; mpd = mii_phy_match(ma, ipgphys); printf(": %s, rev. %d\n", mpd->mpd_name, MII_REV(ma->mii_id2)); sc->mii_inst = mii->mii_instance; sc->mii_phy = ma->mii_phyno; sc->mii_funcs = &ipgphy_funcs; sc->mii_model = MII_MODEL(ma->mii_id2); sc->mii_pdata = mii; sc->mii_flags = ma->mii_flags; sc->mii_flags |= MIIF_NOISOLATE; PHY_RESET(sc); sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & ma->mii_capmask; if (sc->mii_capabilities & BMSR_EXTSTAT) sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); mii_phy_add_media(sc); } int ipgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; uint32_t gig, reg, speed; switch (cmd) { case MII_POLLSTAT: /* * If we're not polling our PHY instance, just return. */ if (IFM_INST(ife->ifm_media) != sc->mii_inst) return (0); break; case MII_MEDIACHG: /* * If the media indicates a different PHY instance, * isolate ourselves. */ if (IFM_INST(ife->ifm_media) != sc->mii_inst) { reg = PHY_READ(sc, IPGPHY_MII_BMCR); PHY_WRITE(sc, IPGPHY_MII_BMCR, reg | IPGPHY_BMCR_ISO); return (0); } /* * If the interface is not up, don't do anything. */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) break; PHY_RESET(sc); switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: (void)ipgphy_mii_phy_auto(sc); goto done; break; case IFM_1000_T: /* * XXX * Manual 1000baseT setting doesn't seem to work. */ speed = IPGPHY_BMCR_1000; break; case IFM_100_TX: speed = IPGPHY_BMCR_100; break; case IFM_10_T: speed = IPGPHY_BMCR_10; break; default: return (EINVAL); } if (((ife->ifm_media & IFM_GMASK) & IFM_FDX) != 0) { speed |= IPGPHY_BMCR_FDX; gig = IPGPHY_1000CR_1000T_FDX; } else gig = IPGPHY_1000CR_1000T; PHY_WRITE(sc, IPGPHY_MII_1000CR, 0); PHY_WRITE(sc, IPGPHY_MII_BMCR, speed); if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T) break; PHY_WRITE(sc, IPGPHY_MII_1000CR, gig); PHY_WRITE(sc, IPGPHY_MII_BMCR, speed); if (mii->mii_media.ifm_media & IFM_ETH_MASTER) gig |= IPGPHY_1000CR_MASTER | IPGPHY_1000CR_MANUAL; PHY_WRITE(sc, IPGPHY_MII_1000CR, gig); done: break; case MII_TICK: /* * If we're not currently selected, just return. */ if (IFM_INST(ife->ifm_media) != sc->mii_inst) return (0); /* * Is the interface even up? */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) return (0); /* * Only used for autonegotiation. */ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { sc->mii_ticks = 0; break; } /* * check for link. */ reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); if (reg & BMSR_LINK) { sc->mii_ticks = 0; break; } /* Announce link loss right after it happens */ if (sc->mii_ticks++ == 0) break; /* * Only retry autonegotiation every mii_anegticks seconds. */ if (sc->mii_ticks <= sc->mii_anegticks) break; sc->mii_ticks = 0; ipgphy_mii_phy_auto(sc); break; } /* Update the media status. */ mii_phy_status(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } void ipgphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; struct ifmedia_entry *ife = mii->mii_media.ifm_cur; uint32_t bmsr, bmcr, stat; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmsr = PHY_READ(sc, IPGPHY_MII_BMSR) | PHY_READ(sc, IPGPHY_MII_BMSR); if (bmsr & IPGPHY_BMSR_LINK) mii->mii_media_status |= IFM_ACTIVE; bmcr = PHY_READ(sc, IPGPHY_MII_BMCR); if (bmcr & IPGPHY_BMCR_LOOP) mii->mii_media_active |= IFM_LOOP; if (bmcr & IPGPHY_BMCR_AUTOEN) { if ((bmsr & IPGPHY_BMSR_ANEGCOMP) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } if (sc->mii_model == MII_MODEL_ICPLUS_IP1001) { stat = PHY_READ(sc, IPGPHY_LSR); switch (stat & IPGPHY_LSR_SPEED_MASK) { case IPGPHY_LSR_SPEED_10: mii->mii_media_active |= IFM_10_T; break; case IPGPHY_LSR_SPEED_100: mii->mii_media_active |= IFM_100_TX; break; case IPGPHY_LSR_SPEED_1000: mii->mii_media_active |= IFM_1000_T; break; default: mii->mii_media_active |= IFM_NONE; return; } if (stat & IPGPHY_LSR_FULL_DUPLEX) mii->mii_media_active |= IFM_FDX; else mii->mii_media_active |= IFM_HDX; } else { stat = PHY_READ(sc, STGE_PhyCtrl); switch (PC_LinkSpeed(stat)) { case PC_LinkSpeed_Down: mii->mii_media_active |= IFM_NONE; return; case PC_LinkSpeed_10: mii->mii_media_active |= IFM_10_T; break; case PC_LinkSpeed_100: mii->mii_media_active |= IFM_100_TX; break; case PC_LinkSpeed_1000: mii->mii_media_active |= IFM_1000_T; break; default: mii->mii_media_active |= IFM_NONE; return; } if (stat & PC_PhyDuplexStatus) mii->mii_media_active |= IFM_FDX; else mii->mii_media_active |= IFM_HDX; } if (mii->mii_media_active & IFM_FDX) mii->mii_media_active |= mii_phy_flowstatus(sc); if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { if (PHY_READ(sc, IPGPHY_MII_1000SR) & IPGPHY_1000SR_MASTER) mii->mii_media_active |= IFM_ETH_MASTER; } } else mii->mii_media_active = ife->ifm_media; } int ipgphy_mii_phy_auto(struct mii_softc *sc) { uint32_t reg = 0; if (sc->mii_model == MII_MODEL_ICPLUS_IP1001) { reg = PHY_READ(sc, IPGPHY_MII_ANAR); reg &= ~(IPGPHY_ANAR_PAUSE | IPGPHY_ANAR_APAUSE); reg |= IPGPHY_ANAR_NP; } reg |= IPGPHY_ANAR_10T | IPGPHY_ANAR_10T_FDX | IPGPHY_ANAR_100TX | IPGPHY_ANAR_100TX_FDX; if (sc->mii_flags & MIIF_DOPAUSE) reg |= IPGPHY_ANAR_PAUSE | IPGPHY_ANAR_APAUSE; PHY_WRITE(sc, IPGPHY_MII_ANAR, reg | IPGPHY_ANAR_CSMA); reg = IPGPHY_1000CR_1000T | IPGPHY_1000CR_1000T_FDX; if (sc->mii_model != MII_MODEL_ICPLUS_IP1001) reg |= IPGPHY_1000CR_MASTER; PHY_WRITE(sc, IPGPHY_MII_1000CR, reg); PHY_WRITE(sc, IPGPHY_MII_BMCR, (IPGPHY_BMCR_FDX | IPGPHY_BMCR_AUTOEN | IPGPHY_BMCR_STARTNEG)); return (EJUSTRETURN); } void ipgphy_load_dspcode(struct mii_softc *sc) { PHY_WRITE(sc, 31, 0x0001); PHY_WRITE(sc, 27, 0x01e0); PHY_WRITE(sc, 31, 0x0002); PHY_WRITE(sc, 27, 0xeb8e); PHY_WRITE(sc, 31, 0x0000); PHY_WRITE(sc, 30, 0x005e); PHY_WRITE(sc, 9, 0x0700); DELAY(50); } void ipgphy_reset(struct mii_softc *sc) { struct ifnet *ifp = sc->mii_pdata->mii_ifp; struct stge_softc *stge_sc; uint32_t reg; mii_phy_reset(sc); /* clear autoneg/full-duplex as we don't want it after reset */ reg = PHY_READ(sc, IPGPHY_MII_BMCR); reg &= ~(IPGPHY_BMCR_AUTOEN | IPGPHY_BMCR_FDX); PHY_WRITE(sc, MII_BMCR, reg); if (sc->mii_model == MII_MODEL_ICPLUS_IP1000A && strcmp(ifp->if_xname, "stge") == 0) { stge_sc = ifp->if_softc; if (stge_sc->sc_rev >= 0x40 && stge_sc->sc_rev <= 0x4e) ipgphy_load_dspcode(sc); } }