/* $OpenBSD: eephy.c,v 1.43 2007/11/18 18:10:13 krw Exp $ */ /* * 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 */ /* * 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 */ #include #include #include #include #include #include #include #include #include #include #include #include int eephy_service(struct mii_softc *, struct mii_data *, int); void eephy_status(struct mii_softc *); int eephymatch(struct device *, void *, void *); void eephyattach(struct device *, struct device *, void *); struct cfattach eephy_ca = { sizeof (struct mii_softc), eephymatch, eephyattach, mii_phy_detach, mii_phy_activate }; struct cfdriver eephy_cd = { NULL, "eephy", DV_DULL }; void eephy_reset(struct mii_softc *); const struct mii_phy_funcs eephy_funcs = { eephy_service, eephy_status, eephy_reset, }; static const struct mii_phydesc eephys[] = { { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_1, MII_STR_MARVELL_E1000_1 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_2, MII_STR_MARVELL_E1000_2 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_3, MII_STR_MARVELL_E1000_3 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000_4, MII_STR_MARVELL_E1000_4 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1000S, MII_STR_MARVELL_E1000S }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1011, MII_STR_MARVELL_E1011 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1111, MII_STR_MARVELL_E1111 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1112, MII_STR_MARVELL_E1112 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1116, MII_STR_MARVELL_E1116 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1118, MII_STR_MARVELL_E1118 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E1149, MII_STR_MARVELL_E1149 }, { MII_OUI_MARVELL, MII_MODEL_MARVELL_E3082, MII_STR_MARVELL_E3082 }, { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_5, MII_STR_xxMARVELL_E1000_5 }, { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_6, MII_STR_xxMARVELL_E1000_6 }, { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1000_7, MII_STR_xxMARVELL_E1000_7 }, { MII_OUI_xxMARVELL, MII_MODEL_xxMARVELL_E1111, MII_STR_xxMARVELL_E1111 }, { 0, 0, NULL }, }; int eephymatch(struct device *parent, void *match, void *aux) { struct mii_attach_args *ma = aux; if (mii_phy_match(ma, eephys) != NULL) return (10); return (0); } void eephyattach(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; int reg, page; mpd = mii_phy_match(ma, eephys); 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 = &eephy_funcs; sc->mii_model = MII_MODEL(ma->mii_id2); sc->mii_pdata = mii; sc->mii_flags = ma->mii_flags; /* XXX No loopback support yet, although the hardware can do it. */ sc->mii_flags |= MIIF_NOLOOP; /* Switch to copper-only mode if necessary. */ if (sc->mii_model == MII_MODEL_MARVELL_E1111 && (sc->mii_flags & MIIF_HAVEFIBER) == 0) { /* * The onboard 88E1111 PHYs on the Sun X4100 M2 come * up with fiber/copper auto-selection enabled, even * though the machine only has copper ports. This * makes the chip autoselect to 1000baseX, and makes * it impossible to select any other media. So * disable fiber/copper autoselection. */ reg = PHY_READ(sc, E1000_ESSR); if ((reg & E1000_ESSR_HWCFG_MODE) == E1000_ESSR_RGMII_COPPER) { reg |= E1000_ESSR_DIS_FC; PHY_WRITE(sc, E1000_ESSR, reg); PHY_RESET(sc); } } /* Switch to fiber-only mode if necessary. */ if (sc->mii_model == MII_MODEL_MARVELL_E1112 && sc->mii_flags & MIIF_HAVEFIBER) { 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); PHY_RESET(sc); } sc->mii_capabilities = PHY_READ(sc, E1000_SR) & ma->mii_capmask; if (sc->mii_capabilities & BMSR_EXTSTAT) sc->mii_extcapabilities = PHY_READ(sc, E1000_ESR); mii_phy_add_media(sc); /* * Initialize PHY Specific Control Register. */ reg = PHY_READ(sc, E1000_SCR); /* Assert CRS on transmit. */ reg |= E1000_SCR_ASSERT_CRS_ON_TX; /* Enable auto crossover. */ switch (sc->mii_model) { case MII_MODEL_MARVELL_E3082: /* Bits are in a different position. */ reg |= (E1000_SCR_AUTO_X_MODE >> 1); break; default: /* Automatic crossover causes problems for 1000baseX. */ if (sc->mii_flags & MIIF_IS_1000X) reg &= ~E1000_SCR_AUTO_X_MODE; else reg |= E1000_SCR_AUTO_X_MODE; } /* Disable energy detect; only available on some models. */ switch(sc->mii_model) { case MII_MODEL_MARVELL_E1011: case MII_MODEL_MARVELL_E1111: case MII_MODEL_MARVELL_E1112: /* Disable energy detect. */ reg &= ~E1000_SCR_EN_DETECT_MASK; break; } PHY_WRITE(sc, E1000_SCR, reg); /* 25 MHz TX_CLK should always work. */ reg = PHY_READ(sc, E1000_ESCR); reg |= E1000_ESCR_TX_CLK_25; PHY_WRITE(sc, E1000_ESCR, reg); /* * Do a software reset for these settings to take effect. * Disable autonegotiation, such that all capabilities get * advertised when it is switched back on. */ reg = PHY_READ(sc, E1000_CR); reg &= ~E1000_CR_AUTO_NEG_ENABLE; PHY_WRITE(sc, E1000_CR, reg | E1000_CR_RESET); } void eephy_reset(struct mii_softc *sc) { int reg, i; reg = PHY_READ(sc, E1000_CR); reg |= E1000_CR_RESET; PHY_WRITE(sc, E1000_CR, reg); for (i = 0; i < 500; i++) { DELAY(1); reg = PHY_READ(sc, E1000_CR); if (!(reg & E1000_CR_RESET)) break; } } int eephy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int bmcr; if ((sc->mii_dev.dv_flags & DVF_ACTIVE) == 0) return (ENXIO); 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) { bmcr = PHY_READ(sc, E1000_CR); PHY_WRITE(sc, E1000_CR, bmcr | 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; mii_phy_setmedia(sc); /* * If autonegitation is not enabled, we need a * software reset for the settings to take effect. */ if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) { bmcr = PHY_READ(sc, E1000_CR); PHY_WRITE(sc, E1000_CR, bmcr | E1000_CR_RESET); } break; case MII_TICK: /* * If we're not currently selected, just return. */ if (IFM_INST(ife->ifm_media) != sc->mii_inst) return (0); if (mii_phy_tick(sc) == EJUSTRETURN) return (0); break; case MII_DOWN: mii_phy_down(sc); return (0); } /* Update the media status. */ mii_phy_status(sc); /* Callback if something changed. */ mii_phy_update(sc, cmd); return (0); } void eephy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; int bmcr, gsr, ssr; 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)) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } if (sc->mii_flags & MIIF_IS_1000X) { mii->mii_media_active |= IFM_1000_SX; } else { if (ssr & E1000_SSR_1000MBS) mii->mii_media_active |= IFM_1000_T; else if (ssr & E1000_SSR_100MBS) mii->mii_media_active |= IFM_100_TX; else mii->mii_media_active |= IFM_10_T; } if (ssr & E1000_SSR_DUPLEX) mii->mii_media_active |= mii_phy_flowstatus(sc) | IFM_FDX; else mii->mii_media_active |= IFM_HDX; if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { gsr = PHY_READ(sc, E1000_1GSR) | PHY_READ(sc, E1000_1GSR); if (gsr & E1000_1GSR_MS_CONFIG_RES) mii->mii_media_active |= IFM_ETH_MASTER; } }