/* $NetBSD: brgphy.c,v 1.23 2005/02/27 00:27:31 perry Exp $ */ /*- * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * 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, 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ /* * Copyright (c) 1997 Manuel Bouyer. 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, 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Manuel Bouyer. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 Broadcom BCM5400 Gig-E PHY. * * Programming information for this PHY was gleaned from FreeBSD * (they were apparently able to get a datasheet from Broadcom). */ #include __KERNEL_RCSID(0, "$NetBSD: brgphy.c,v 1.23 2005/02/27 00:27:31 perry Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include static int brgphymatch(struct device *, struct cfdata *, void *); static void brgphyattach(struct device *, struct device *, void *); CFATTACH_DECL(brgphy, sizeof(struct mii_softc), brgphymatch, brgphyattach, mii_phy_detach, mii_phy_activate); static int brgphy_service(struct mii_softc *, struct mii_data *, int); static void brgphy_status(struct mii_softc *); static void brgphy_5401_reset(struct mii_softc *); static void brgphy_5411_reset(struct mii_softc *); static void brgphy_5703_reset(struct mii_softc *); static void brgphy_5704_reset(struct mii_softc *); static void brgphy_5705_reset(struct mii_softc *); static void brgphy_5750_reset(struct mii_softc *); static const struct mii_phy_funcs brgphy_funcs = { brgphy_service, brgphy_status, mii_phy_reset, }; static const struct mii_phy_funcs brgphy_5401_funcs = { brgphy_service, brgphy_status, brgphy_5401_reset, }; static const struct mii_phy_funcs brgphy_5411_funcs = { brgphy_service, brgphy_status, brgphy_5411_reset, }; static const struct mii_phy_funcs brgphy_5703_funcs = { brgphy_service, brgphy_status, brgphy_5703_reset, }; static const struct mii_phy_funcs brgphy_5704_funcs = { brgphy_service, brgphy_status, brgphy_5704_reset, }; static const struct mii_phy_funcs brgphy_5705_funcs = { brgphy_service, brgphy_status, brgphy_5705_reset, }; const struct mii_phy_funcs brgphy_5750_funcs = { brgphy_service, brgphy_status, brgphy_5750_reset, }; static const struct mii_phydesc brgphys[] = { { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5400, MII_STR_BROADCOM_BCM5400 }, { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5401, MII_STR_BROADCOM_BCM5401 }, { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5411, MII_STR_BROADCOM_BCM5411 }, { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5421, MII_STR_BROADCOM_BCM5421 }, { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5701, MII_STR_BROADCOM_BCM5701 }, { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5703, MII_STR_BROADCOM_BCM5703 }, { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5704, MII_STR_BROADCOM_BCM5704 }, { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5705, MII_STR_BROADCOM_BCM5705 }, { MII_OUI_BROADCOM, MII_MODEL_BROADCOM_BCM5750, MII_STR_BROADCOM_BCM5750 }, { 0, 0, NULL }, }; static void bcm5401_load_dspcode(struct mii_softc *); static void bcm5411_load_dspcode(struct mii_softc *); static void bcm5703_load_dspcode(struct mii_softc *); static void bcm5704_load_dspcode(struct mii_softc *); static void bcm5750_load_dspcode(struct mii_softc *); static int brgphymatch(struct device *parent, struct cfdata *match, void *aux) { struct mii_attach_args *ma = aux; if (mii_phy_match(ma, brgphys) != NULL) return (10); return (0); } static void brgphyattach(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, brgphys); aprint_naive(": Media interface\n"); aprint_normal(": %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_pdata = mii; sc->mii_flags = ma->mii_flags; sc->mii_anegticks = 5; switch (MII_MODEL(ma->mii_id2)) { case MII_MODEL_BROADCOM_BCM5400: sc->mii_funcs = &brgphy_5401_funcs; aprint_normal("%s: using BCM5401 DSP patch\n", sc->mii_dev.dv_xname); break; case MII_MODEL_BROADCOM_BCM5401: if (MII_REV(ma->mii_id2) == 1 || MII_REV(ma->mii_id2) == 3) { sc->mii_funcs = &brgphy_5401_funcs; aprint_normal("%s: using BCM5401 DSP patch\n", sc->mii_dev.dv_xname); } else sc->mii_funcs = &brgphy_funcs; break; case MII_MODEL_BROADCOM_BCM5411: sc->mii_funcs = &brgphy_5411_funcs; aprint_normal("%s: using BCM5411 DSP patch\n", sc->mii_dev.dv_xname); break; #ifdef notyet /* unverified, untested */ case MII_MODEL_BROADCOM_BCM5703: sc->mii_funcs = &brgphy_5703_funcs; aprint_normal("%s: using BCM5703 DSP patch\n", sc->mii_dev.dv_xname); break; #endif case MII_MODEL_BROADCOM_BCM5704: sc->mii_funcs = &brgphy_5704_funcs; aprint_normal("%s: using BCM5704 DSP patch\n", sc->mii_dev.dv_xname); break; case MII_MODEL_BROADCOM_BCM5705: sc->mii_funcs = &brgphy_5705_funcs; break; case MII_MODEL_BROADCOM_BCM5750: sc->mii_funcs = &brgphy_5750_funcs; break; default: sc->mii_funcs = &brgphy_funcs; break; } 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); aprint_normal("%s: ", sc->mii_dev.dv_xname); if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) aprint_error("no media present"); else mii_phy_add_media(sc); aprint_normal("\n"); } static int brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 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, MII_BMCR); PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); return (0); } /* * If the interface is not up, don't do anything. */ if ((mii->mii_ifp->if_flags & IFF_UP) == 0) break; if (sc->mii_funcs != &brgphy_5705_funcs) mii_phy_reset(sc); /* XXX hardware bug work-around */ mii_phy_setmedia(sc); 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. Note that we need to poke * the DSP on the Broadcom PHYs if the media changes. */ if (sc->mii_media_active != mii->mii_media_active || sc->mii_media_status != mii->mii_media_status || cmd == MII_MEDIACHG) { mii_phy_update(sc, cmd); if (sc->mii_funcs == &brgphy_5401_funcs) bcm5401_load_dspcode(sc); else if (sc->mii_funcs == &brgphy_5411_funcs) bcm5411_load_dspcode(sc); } return (0); } static void brgphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int bmcr, auxsts, gtsr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; auxsts = PHY_READ(sc, BRGPHY_MII_AUXSTS); if (auxsts & BRGPHY_AUXSTS_LINK) mii->mii_media_status |= IFM_ACTIVE; bmcr = PHY_READ(sc, MII_BMCR); if (bmcr & BMCR_ISO) { mii->mii_media_active |= IFM_NONE; mii->mii_media_status = 0; return; } if (bmcr & BMCR_LOOP) mii->mii_media_active |= IFM_LOOP; if (bmcr & BMCR_AUTOEN) { /* * The media status bits are only valid of autonegotiation * has completed (or it's disabled). */ if ((auxsts & BRGPHY_AUXSTS_ACOMP) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } switch (auxsts & BRGPHY_AUXSTS_AN_RES) { case BRGPHY_RES_1000FD: mii->mii_media_active |= IFM_1000_T|IFM_FDX; gtsr = PHY_READ(sc, MII_100T2SR); if (gtsr & GTSR_MS_RES) mii->mii_media_active |= IFM_ETH_MASTER; break; case BRGPHY_RES_1000HD: mii->mii_media_active |= IFM_1000_T; gtsr = PHY_READ(sc, MII_100T2SR); if (gtsr & GTSR_MS_RES) mii->mii_media_active |= IFM_ETH_MASTER; break; case BRGPHY_RES_100FD: mii->mii_media_active |= IFM_100_TX|IFM_FDX; break; case BRGPHY_RES_100T4: mii->mii_media_active |= IFM_100_T4; break; case BRGPHY_RES_100HD: mii->mii_media_active |= IFM_100_TX; break; case BRGPHY_RES_10FD: mii->mii_media_active |= IFM_10_T|IFM_FDX; break; case BRGPHY_RES_10HD: mii->mii_media_active |= IFM_10_T; break; default: mii->mii_media_active |= IFM_NONE; mii->mii_media_status = 0; } if (mii->mii_media_active & IFM_FDX) mii->mii_media_active |= mii_phy_flowstatus(sc); } else mii->mii_media_active = ife->ifm_media; } static void brgphy_5401_reset(struct mii_softc *sc) { mii_phy_reset(sc); bcm5401_load_dspcode(sc); } static void brgphy_5411_reset(struct mii_softc *sc) { mii_phy_reset(sc); bcm5411_load_dspcode(sc); } static void brgphy_5703_reset(struct mii_softc *sc) { mii_phy_reset(sc); bcm5703_load_dspcode(sc); } static void brgphy_5704_reset(struct mii_softc *sc) { mii_phy_reset(sc); bcm5704_load_dspcode(sc); } /* * Hardware bug workaround. Do nothing since after * reset the 5705 PHY would get stuck in 10/100 MII mode. */ static void brgphy_5705_reset(struct mii_softc *sc) { } static void brgphy_5750_reset(struct mii_softc *sc) { mii_phy_reset(sc); bcm5750_load_dspcode(sc); } /* Turn off tap power management on 5401. */ static void bcm5401_load_dspcode(struct mii_softc *sc) { static const struct { int reg; uint16_t val; } dspcode[] = { { BRGPHY_MII_AUXCTL, 0x0c20 }, { BRGPHY_MII_DSP_ADDR_REG, 0x0012 }, { BRGPHY_MII_DSP_RW_PORT, 0x1804 }, { BRGPHY_MII_DSP_ADDR_REG, 0x0013 }, { BRGPHY_MII_DSP_RW_PORT, 0x1204 }, { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, { BRGPHY_MII_DSP_RW_PORT, 0x0132 }, { BRGPHY_MII_DSP_ADDR_REG, 0x8006 }, { BRGPHY_MII_DSP_RW_PORT, 0x0232 }, { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, { BRGPHY_MII_DSP_RW_PORT, 0x0a20 }, { 0, 0 }, }; int i; for (i = 0; dspcode[i].reg != 0; i++) PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); delay(40); } static void bcm5411_load_dspcode(struct mii_softc *sc) { static const struct { int reg; uint16_t val; } dspcode[] = { { 0x1c, 0x8c23 }, { 0x1c, 0x8ca3 }, { 0x1c, 0x8c23 }, { 0, 0 }, }; int i; for (i = 0; dspcode[i].reg != 0; i++) PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); } static void bcm5703_load_dspcode(struct mii_softc *sc) { static const struct { int reg; uint16_t val; } dspcode[] = { { BRGPHY_MII_AUXCTL, 0x0c00 }, { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, { BRGPHY_MII_DSP_RW_PORT, 0x2aaa }, { 0, 0 }, }; int i; for (i = 0; dspcode[i].reg != 0; i++) PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); } static void bcm5704_load_dspcode(struct mii_softc *sc) { static const struct { int reg; uint16_t val; } dspcode[] = { { 0x1c, 0x8d68 }, { 0x1c, 0x8d68 }, { 0, 0 }, }; int i; for (i = 0; dspcode[i].reg != 0; i++) PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); } static void bcm5750_load_dspcode(struct mii_softc *sc) { static const struct { int reg; uint16_t val; } dspcode[] = { { BRGPHY_MII_AUXCTL, 0x0c00 }, { BRGPHY_MII_DSP_ADDR_REG, 0x000a }, { BRGPHY_MII_DSP_RW_PORT, 0x310b }, { BRGPHY_MII_DSP_ADDR_REG, 0x201f }, { BRGPHY_MII_DSP_RW_PORT, 0x9506 }, { BRGPHY_MII_DSP_ADDR_REG, 0x401f }, { BRGPHY_MII_DSP_RW_PORT, 0x14e2 }, { BRGPHY_MII_AUXCTL, 0x0400 }, { 0, 0 }, }; int i; for (i = 0; dspcode[i].reg != 0; i++) PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); }