/*- * Principal Author: Parag Patel * Copyright (c) 2001 * 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. * * Additonal Copyright (c) 2001 by Traakan Software under same licence. * Secondary Author: Matthew Jacob */ #include __FBSDID("$FreeBSD: src/sys/dev/mii/e1000phy.c,v 1.23 2008/10/17 05:26:51 yongari Exp $"); /* * driver for the Marvell 88E1000 series external 1000/100/10-BT PHY. */ /* * Support added for the Marvell 88E1011 (Alaska) 1000/100/10baseTX and * 1000baseSX PHY. * Nathan Binkert * Jung-uk Kim */ #include #include #include #include #include #include #include #include #include #include #include "miidevs.h" #include #include "miibus_if.h" static int e1000phy_probe(device_t); static int e1000phy_attach(device_t); struct e1000phy_softc { struct mii_softc mii_sc; int mii_model; }; static device_method_t e1000phy_methods[] = { /* device interface */ DEVMETHOD(device_probe, e1000phy_probe), DEVMETHOD(device_attach, e1000phy_attach), DEVMETHOD(device_detach, mii_phy_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), { 0, 0 } }; static devclass_t e1000phy_devclass; static driver_t e1000phy_driver = { "e1000phy", e1000phy_methods, sizeof(struct e1000phy_softc) }; DRIVER_MODULE(e1000phy, miibus, e1000phy_driver, e1000phy_devclass, 0, 0); static int e1000phy_service(struct mii_softc *, struct mii_data *, int); static void e1000phy_status(struct mii_softc *); static void e1000phy_reset(struct mii_softc *); static int e1000phy_mii_phy_auto(struct e1000phy_softc *); static const struct mii_phydesc e1000phys[] = { MII_PHY_DESC(MARVELL, E1000), MII_PHY_DESC(MARVELL, E1011), MII_PHY_DESC(MARVELL, E1000_3), MII_PHY_DESC(MARVELL, E1000S), MII_PHY_DESC(MARVELL, E1000_5), MII_PHY_DESC(MARVELL, E1000_6), MII_PHY_DESC(MARVELL, E3082), MII_PHY_DESC(MARVELL, E1112), MII_PHY_DESC(MARVELL, E1149), MII_PHY_DESC(MARVELL, E1111), MII_PHY_DESC(MARVELL, E1116), MII_PHY_DESC(MARVELL, E1116R), MII_PHY_DESC(MARVELL, E1118), MII_PHY_DESC(MARVELL, E3016), MII_PHY_DESC(xxMARVELL, E1000), MII_PHY_DESC(xxMARVELL, E1011), MII_PHY_DESC(xxMARVELL, E1000_3), MII_PHY_DESC(xxMARVELL, E1000_5), MII_PHY_DESC(xxMARVELL, E1111), MII_PHY_END }; static int e1000phy_probe(device_t dev) { return (mii_phy_dev_probe(dev, e1000phys, BUS_PROBE_DEFAULT)); } static int e1000phy_attach(device_t dev) { struct e1000phy_softc *esc; struct mii_softc *sc; struct mii_attach_args *ma; struct mii_data *mii; esc = device_get_softc(dev); sc = &esc->mii_sc; ma = device_get_ivars(dev); sc->mii_dev = device_get_parent(dev); mii = device_get_softc(sc->mii_dev); LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list); sc->mii_inst = mii->mii_instance; sc->mii_phy = ma->mii_phyno; sc->mii_service = e1000phy_service; sc->mii_pdata = mii; mii->mii_instance++; esc->mii_model = MII_MODEL(ma->mii_id2); switch (esc->mii_model) { case MII_MODEL_MARVELL_E1011: case MII_MODEL_MARVELL_E1112: if (PHY_READ(sc, E1000_ESSR) & E1000_ESSR_FIBER_LINK) sc->mii_flags |= MIIF_HAVEFIBER; break; case MII_MODEL_MARVELL_E1149: /* * Some 88E1149 PHY's page select is initialized to * point to other bank instead of copper/fiber bank * which in turn resulted in wrong registers were * accessed during PHY operation. It is believed that * page 0 should be used for copper PHY so reinitialize * E1000_EADR to select default copper PHY. If parent * device know the type of PHY(either copper or fiber), * that information should be used to select default * type of PHY. */ PHY_WRITE(sc, E1000_EADR, 0); break; } e1000phy_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); device_printf(dev, " "); mii_phy_add_media(sc); printf("\n"); MIIBUS_MEDIAINIT(sc->mii_dev); return (0); } static void e1000phy_reset(struct mii_softc *sc) { struct e1000phy_softc *esc; uint16_t reg, page; esc = (struct e1000phy_softc *)sc; reg = PHY_READ(sc, E1000_SCR); if ((sc->mii_flags & MIIF_HAVEFIBER) != 0) { reg &= ~E1000_SCR_AUTO_X_MODE; PHY_WRITE(sc, E1000_SCR, reg); if (esc->mii_model == MII_MODEL_MARVELL_E1112) { /* Select 1000BASE-X only mode. */ page = PHY_READ(sc, E1000_EADR); PHY_WRITE(sc, E1000_EADR, 2); reg = PHY_READ(sc, E1000_SCR); reg &= ~E1000_SCR_MODE_MASK; reg |= E1000_SCR_MODE_1000BX; PHY_WRITE(sc, E1000_SCR, reg); PHY_WRITE(sc, E1000_EADR, page); } } else { switch (esc->mii_model) { case MII_MODEL_MARVELL_E1111: case MII_MODEL_MARVELL_E1112: case MII_MODEL_MARVELL_E1116: case MII_MODEL_MARVELL_E1118: case MII_MODEL_MARVELL_E1149: /* Disable energy detect mode. */ reg &= ~E1000_SCR_EN_DETECT_MASK; reg |= E1000_SCR_AUTO_X_MODE; if (esc->mii_model == MII_MODEL_MARVELL_E1116) reg &= ~E1000_SCR_POWER_DOWN; reg |= E1000_SCR_ASSERT_CRS_ON_TX; break; case MII_MODEL_MARVELL_E3082: reg |= (E1000_SCR_AUTO_X_MODE >> 1); reg |= E1000_SCR_ASSERT_CRS_ON_TX; break; case MII_MODEL_MARVELL_E3016: reg |= (E1000_SCR_AUTO_X_MODE >> 1); reg &= ~(E1000_SCR_EN_DETECT | E1000_SCR_SCRAMBLER_DISABLE); reg |= E1000_SCR_LPNP; break; default: reg &= ~E1000_SCR_AUTO_X_MODE; reg |= E1000_SCR_ASSERT_CRS_ON_TX; break; } /* Auto correction for reversed cable polarity. */ reg &= ~E1000_SCR_POLARITY_REVERSAL; PHY_WRITE(sc, E1000_SCR, reg); if (esc->mii_model == MII_MODEL_MARVELL_E1116) { PHY_WRITE(sc, E1000_EADR, 2); reg = PHY_READ(sc, E1000_SCR); reg |= E1000_SCR_RGMII_POWER_UP; PHY_WRITE(sc, E1000_SCR, reg); PHY_WRITE(sc, E1000_EADR, 0); } } switch (MII_MODEL(esc->mii_model)) { case MII_MODEL_MARVELL_E3082: case MII_MODEL_MARVELL_E1112: case MII_MODEL_MARVELL_E1116: case MII_MODEL_MARVELL_E1118: case MII_MODEL_MARVELL_E1149: break; case MII_MODEL_MARVELL_E3016: /* XXX Enable class A driver for Yukon FE+ A0. */ reg = PHY_READ(sc, 0x1C); reg |= 0x0001; PHY_WRITE(sc, 0x1C, reg); /* Integrated register calibration workaround. */ PHY_WRITE(sc, 0x1D, 17); PHY_WRITE(sc, 0x1E, 0x3F60); break; default: /* Force TX_CLK to 25MHz clock. */ reg = PHY_READ(sc, E1000_ESCR); reg |= E1000_ESCR_TX_CLK_25; PHY_WRITE(sc, E1000_ESCR, reg); break; } /* Reset the PHY so all changes take effect. */ reg = PHY_READ(sc, E1000_CR); reg |= E1000_CR_RESET; PHY_WRITE(sc, E1000_CR, reg); } static int e1000phy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; struct e1000phy_softc *esc = (struct e1000phy_softc *)sc; uint16_t speed, gig; int reg; 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, E1000_CR); PHY_WRITE(sc, E1000_CR, reg | E1000_CR_ISOLATE); return (0); } /* * If the interface is not up, don't do anything. */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) break; if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO) { e1000phy_mii_phy_auto(esc); break; } speed = 0; switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_1000_T: if ((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) == 0) return (EINVAL); speed = E1000_CR_SPEED_1000; break; case IFM_1000_SX: if ((sc->mii_extcapabilities & (EXTSR_1000XFDX | EXTSR_1000XHDX)) == 0) return (EINVAL); speed = E1000_CR_SPEED_1000; break; case IFM_100_TX: speed = E1000_CR_SPEED_100; break; case IFM_10_T: speed = E1000_CR_SPEED_10; break; case IFM_NONE: reg = PHY_READ(sc, E1000_CR); PHY_WRITE(sc, E1000_CR, reg | E1000_CR_ISOLATE | E1000_CR_POWER_DOWN); goto done; default: return (EINVAL); } if (((ife->ifm_media & IFM_GMASK) & IFM_FDX) != 0) { speed |= E1000_CR_FULL_DUPLEX; gig = E1000_1GCR_1000T_FD; } else gig = E1000_1GCR_1000T; reg = PHY_READ(sc, E1000_CR); reg &= ~E1000_CR_AUTO_NEG_ENABLE; PHY_WRITE(sc, E1000_CR, reg | E1000_CR_RESET); /* * When setting the link manually, one side must * be the master and the other the slave. However * ifmedia doesn't give us a good way to specify * this, so we fake it by using one of the LINK * flags. If LINK0 is set, we program the PHY to * be a master, otherwise it's a slave. */ if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T || (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_SX)) { if ((mii->mii_ifp->if_flags & IFF_LINK0)) PHY_WRITE(sc, E1000_1GCR, gig | E1000_1GCR_MS_ENABLE | E1000_1GCR_MS_VALUE); else PHY_WRITE(sc, E1000_1GCR, gig | E1000_1GCR_MS_ENABLE); } else { if ((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) != 0) PHY_WRITE(sc, E1000_1GCR, 0); } PHY_WRITE(sc, E1000_AR, E1000_AR_SELECTOR_FIELD); PHY_WRITE(sc, E1000_CR, speed | E1000_CR_RESET); 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. * Read the status register twice; BMSR_LINK is latch-low. */ reg = PHY_READ(sc, E1000_SSR); if (reg & E1000_SSR_LINK) { sc->mii_ticks = 0; break; } /* Announce link loss right after it happens. */ if (sc->mii_ticks++ == 0) break; if (sc->mii_ticks <= sc->mii_anegticks) break; sc->mii_ticks = 0; e1000phy_reset(sc); e1000phy_mii_phy_auto(esc); break; } /* Update the media status. */ e1000phy_status(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } static void e1000phy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; int bmcr, gsr, ssr, ar, lpar; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmcr = PHY_READ(sc, E1000_CR); ssr = PHY_READ(sc, E1000_SSR); if (ssr & E1000_SSR_LINK) mii->mii_media_status |= IFM_ACTIVE; if (bmcr & E1000_CR_LOOPBACK) mii->mii_media_active |= IFM_LOOP; if ((ssr & E1000_SSR_SPD_DPLX_RESOLVED) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) { switch (ssr & E1000_SSR_SPEED) { case E1000_SSR_1000MBS: mii->mii_media_active |= IFM_1000_T; break; case E1000_SSR_100MBS: mii->mii_media_active |= IFM_100_TX; break; case E1000_SSR_10MBS: mii->mii_media_active |= IFM_10_T; break; default: mii->mii_media_active |= IFM_NONE; return; } } else { if (ssr & E1000_SSR_1000MBS) mii->mii_media_active |= IFM_1000_SX; } if (ssr & E1000_SSR_DUPLEX) mii->mii_media_active |= IFM_FDX; else mii->mii_media_active |= IFM_HDX; if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) { ar = PHY_READ(sc, E1000_AR); lpar = PHY_READ(sc, E1000_LPAR); /* FLAG0==rx-flow-control FLAG1==tx-flow-control */ if ((ar & E1000_AR_PAUSE) && (lpar & E1000_LPAR_PAUSE)) { mii->mii_media_active |= IFM_FLAG0 | IFM_FLAG1; } else if (!(ar & E1000_AR_PAUSE) && (ar & E1000_AR_ASM_DIR) && (lpar & E1000_LPAR_PAUSE) && (lpar & E1000_LPAR_ASM_DIR)) { mii->mii_media_active |= IFM_FLAG1; } else if ((ar & E1000_AR_PAUSE) && (ar & E1000_AR_ASM_DIR) && !(lpar & E1000_LPAR_PAUSE) && (lpar & E1000_LPAR_ASM_DIR)) { mii->mii_media_active |= IFM_FLAG0; } } /* FLAG2 : local PHY resolved to MASTER */ if ((IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) || (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX)) { PHY_READ(sc, E1000_1GSR); gsr = PHY_READ(sc, E1000_1GSR); if ((gsr & E1000_1GSR_MS_CONFIG_RES) != 0) mii->mii_media_active |= IFM_FLAG2; } } static int e1000phy_mii_phy_auto(struct e1000phy_softc *esc) { struct mii_softc *sc; sc = &esc->mii_sc; if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) PHY_WRITE(sc, E1000_AR, E1000_AR_10T | E1000_AR_10T_FD | E1000_AR_100TX | E1000_AR_100TX_FD | E1000_AR_PAUSE | E1000_AR_ASM_DIR | E1000_AR_SELECTOR_FIELD); else PHY_WRITE(sc, E1000_AR, E1000_FA_1000X_FD | E1000_FA_1000X | E1000_FA_SYM_PAUSE | E1000_FA_ASYM_PAUSE); if ((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) != 0) PHY_WRITE(sc, E1000_1GCR, E1000_1GCR_1000T_FD | E1000_1GCR_1000T); PHY_WRITE(sc, E1000_CR, E1000_CR_AUTO_NEG_ENABLE | E1000_CR_RESTART_AUTO_NEG); return (EJUSTRETURN); }