/* $OpenBSD: brgphy.c,v 1.41 2005/11/06 21:51:55 brad Exp $ */ /* * Copyright (c) 2000 * Bill Paul . 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 Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD * 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. * * $FreeBSD: brgphy.c,v 1.8 2002/03/22 06:38:52 wpaul Exp $ */ /* * Driver for the Broadcom BCR5400 1000baseTX PHY. Speed is always * 1000mbps; all we need to negotiate here is full or half duplex. */ #include #include #include #include #include #include #include #include #include #ifdef INET #include #include #endif #include #include #include #include #include #include int brgphy_probe(struct device *, void *, void *); void brgphy_attach(struct device *, struct device *, void *); struct cfattach brgphy_ca = { sizeof(struct mii_softc), brgphy_probe, brgphy_attach, mii_phy_detach, mii_phy_activate }; struct cfdriver brgphy_cd = { NULL, "brgphy", DV_DULL }; int brgphy_service(struct mii_softc *, struct mii_data *, int); void brgphy_status(struct mii_softc *); int brgphy_mii_phy_auto(struct mii_softc *, int); void brgphy_loop(struct mii_softc *); void brgphy_reset(struct mii_softc *); void brgphy_load_dspcode(struct mii_softc *); void brgphy_bcm5401_dspcode(struct mii_softc *); void brgphy_bcm5411_dspcode(struct mii_softc *); void brgphy_bcm5421_dspcode(struct mii_softc *); void brgphy_bcm54k2_dspcode(struct mii_softc *); void brgphy_bcm5703_dspcode(struct mii_softc *); void brgphy_bcm5704_dspcode(struct mii_softc *); void brgphy_bcm5750_dspcode(struct mii_softc *); const struct mii_phy_funcs brgphy_funcs = { brgphy_service, brgphy_status, brgphy_reset, }; static const struct mii_phydesc brgphys[] = { { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5400, MII_STR_xxBROADCOM_BCM5400 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5401, MII_STR_xxBROADCOM_BCM5401 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5411, MII_STR_xxBROADCOM_BCM5411 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5421, MII_STR_xxBROADCOM_BCM5421 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM54K2, MII_STR_xxBROADCOM_BCM54K2 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5462, MII_STR_xxBROADCOM_BCM5462 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5701, MII_STR_xxBROADCOM_BCM5701 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5703, MII_STR_xxBROADCOM_BCM5703 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5704, MII_STR_xxBROADCOM_BCM5704 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5705, MII_STR_xxBROADCOM_BCM5705 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5714, MII_STR_xxBROADCOM_BCM5714 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5750, MII_STR_xxBROADCOM_BCM5750 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5752, MII_STR_xxBROADCOM_BCM5752 }, { 0, 0, NULL }, }; int brgphy_probe(struct device *parent, void *match, void *aux) { struct mii_attach_args *ma = aux; if (mii_phy_match(ma, brgphys) != NULL) return (10); return (0); } void brgphy_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, brgphys); 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 = &brgphy_funcs; sc->mii_model = MII_MODEL(ma->mii_id2); sc->mii_rev = MII_REV(ma->mii_id2); sc->mii_pdata = mii; sc->mii_flags = ma->mii_flags; sc->mii_anegticks = MII_ANEGTICKS; 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); if ((sc->mii_capabilities & BMSR_MEDIAMASK) || (sc->mii_extcapabilities & EXTSR_MEDIAMASK)) mii_phy_add_media(sc); } int brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) { struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int reg, speed, gig; 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) { 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; PHY_RESET(sc); /* XXX hardware bug work-around */ switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_AUTO: #ifdef foo /* * If we're already in auto mode, just return. */ if (PHY_READ(sc, BRGPHY_MII_BMCR) & BRGPHY_BMCR_AUTOEN) return (0); #endif (void) brgphy_mii_phy_auto(sc, 1); break; case IFM_1000_T: speed = BRGPHY_S1000; goto setit; case IFM_100_T4: speed = BRGPHY_S100; goto setit; case IFM_100_TX: speed = BRGPHY_S100; goto setit; case IFM_10_T: speed = BRGPHY_S10; setit: brgphy_loop(sc); if ((ife->ifm_media & IFM_GMASK) == IFM_FDX) { speed |= BRGPHY_BMCR_FDX; gig = BRGPHY_1000CTL_AFD; } else { gig = BRGPHY_1000CTL_AHD; } PHY_WRITE(sc, BRGPHY_MII_1000CTL, 0); PHY_WRITE(sc, BRGPHY_MII_BMCR, speed); PHY_WRITE(sc, BRGPHY_MII_ANAR, BRGPHY_SEL_TYPE); if (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T) break; PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig); PHY_WRITE(sc, BRGPHY_MII_BMCR, speed|BRGPHY_BMCR_AUTOEN|BRGPHY_BMCR_STARTNEG); if (sc->mii_model != MII_MODEL_xxBROADCOM_BCM5701) break; /* * 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 ((mii->mii_ifp->if_flags & IFF_LINK0)) { PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig|BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC); } else { PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig|BRGPHY_1000CTL_MSE); } break; default: return (EINVAL); } 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) break; /* * Check to see if we have link. If we do, we don't * need to restart the autonegotiation process. Read * the BMSR twice in case it's latched. */ reg = PHY_READ(sc, BRGPHY_MII_AUXSTS); if (reg & BRGPHY_AUXSTS_LINK) break; /* * Only retry autonegotiation every mii_anegticks seconds. */ if (++sc->mii_ticks <= sc->mii_anegticks) break; sc->mii_ticks = 0; if (brgphy_mii_phy_auto(sc, 0) == EJUSTRETURN) return (0); break; } /* Update the media status. */ brgphy_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) { switch (sc->mii_model) { case MII_MODEL_BROADCOM_BCM5400: case MII_MODEL_xxBROADCOM_BCM5401: case MII_MODEL_xxBROADCOM_BCM5411: brgphy_load_dspcode(sc); break; } } mii_phy_update(sc, cmd); return (0); } void brgphy_status(struct mii_softc *sc) { struct mii_data *mii = sc->mii_pdata; struct ifmedia_entry *ife = mii->mii_media.ifm_cur; int bmsr, bmcr; mii->mii_media_status = IFM_AVALID; mii->mii_media_active = IFM_ETHER; bmsr = PHY_READ(sc, BRGPHY_MII_BMSR); if (PHY_READ(sc, BRGPHY_MII_AUXSTS) & BRGPHY_AUXSTS_LINK) mii->mii_media_status |= IFM_ACTIVE; bmcr = PHY_READ(sc, BRGPHY_MII_BMCR); if (bmcr & BRGPHY_BMCR_LOOP) mii->mii_media_active |= IFM_LOOP; if (bmcr & BRGPHY_BMCR_AUTOEN) { if ((bmsr & BRGPHY_BMSR_ACOMP) == 0) { /* Erg, still trying, I guess... */ mii->mii_media_active |= IFM_NONE; return; } switch (PHY_READ(sc, BRGPHY_MII_AUXSTS) & BRGPHY_AUXSTS_AN_RES) { case BRGPHY_RES_1000FD: mii->mii_media_active |= IFM_1000_T | IFM_FDX; break; case BRGPHY_RES_1000HD: mii->mii_media_active |= IFM_1000_T | IFM_HDX; 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 | IFM_HDX; 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 | IFM_HDX; break; default: mii->mii_media_active |= IFM_NONE; break; } return; } mii->mii_media_active = ife->ifm_media; } int brgphy_mii_phy_auto(struct mii_softc *sc, int waitfor) { int bmsr, ktcr = 0, i; if ((sc->mii_flags & MIIF_DOINGAUTO) == 0) { brgphy_loop(sc); PHY_RESET(sc); ktcr = BRGPHY_1000CTL_AFD|BRGPHY_1000CTL_AHD; if (sc->mii_model == MII_MODEL_xxBROADCOM_BCM5701) ktcr |= BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC; PHY_WRITE(sc, BRGPHY_MII_1000CTL, ktcr); ktcr = PHY_READ(sc, BRGPHY_MII_1000CTL); DELAY(1000); PHY_WRITE(sc, BRGPHY_MII_ANAR, BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA); DELAY(1000); PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG); PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00); } if (waitfor) { /* Wait 500ms for it to complete. */ for (i = 0; i < 500; i++) { if ((bmsr = PHY_READ(sc, BRGPHY_MII_BMSR)) & BRGPHY_BMSR_ACOMP) return (0); DELAY(1000); } /* * Don't need to worry about clearing MIIF_DOINGAUTO. * If that's set, a timeout is pending, and it will * clear the flag. */ return (EIO); } /* * Just let it finish asynchronously. This is for the benefit of * the tick handler driving autonegotiation. Don't want 500ms * delays all the time while the system is running! */ if ((sc->mii_flags & MIIF_DOINGAUTO) == 0) { sc->mii_flags |= MIIF_DOINGAUTO; timeout_set(&sc->mii_phy_timo, mii_phy_auto_timeout, sc); timeout_add(&sc->mii_phy_timo, hz / 2); } return (EJUSTRETURN); } void brgphy_loop(struct mii_softc *sc) { u_int32_t bmsr; int i; PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_LOOP); for (i = 0; i < 15000; i++) { bmsr = PHY_READ(sc, BRGPHY_MII_BMSR); if (!(bmsr & BRGPHY_BMSR_LINK)) { break; } DELAY(10); } } void brgphy_reset(struct mii_softc *sc) { struct bge_softc *bge_sc; struct ifnet *ifp; u_int32_t val; mii_phy_reset(sc); ifp = sc->mii_pdata->mii_ifp; bge_sc = ifp->if_softc; brgphy_load_dspcode(sc); /* * Don't enable Ethernet@WireSpeed for the 5700 or the * 5705 A1 and A2 chips. Make sure we only do this test * on "bge" NICs, since other drivers may use this same * PHY subdriver. */ if (strncmp(ifp->if_xname, "bge", 3) == 0 && (BGE_ASICREV(bge_sc->bge_chipid) == BGE_ASICREV_BCM5700 || bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A1 || bge_sc->bge_chipid == BGE_CHIPID_BCM5705_A2)) return; /* Enable Ethernet@WireSpeed. */ PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7007); val = PHY_READ(sc, BRGPHY_MII_AUXCTL); PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val | (1 << 15) | (1 << 4)); /* Enable Link LED on Dell boxes */ if (bge_sc->bge_no_3_led) { PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL, PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL) & ~BRGPHY_PHY_EXTCTL_3_LED); } } /* Disable tap power management */ void brgphy_bcm5401_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); } /* Setting some undocumented voltage */ void brgphy_bcm5411_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); } void brgphy_bcm5421_dspcode(struct mii_softc *sc) { uint16_t data; /* Set Class A mode */ PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x1007); data = PHY_READ(sc, BRGPHY_MII_AUXCTL); PHY_WRITE(sc, BRGPHY_MII_AUXCTL, data | 0x0400); /* Set FFE gamma override to -0.125 */ PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x0007); data = PHY_READ(sc, BRGPHY_MII_AUXCTL); PHY_WRITE(sc, BRGPHY_MII_AUXCTL, data | 0x0800); PHY_WRITE(sc, BRGPHY_MII_DSP_ADDR_REG, 0x000a); data = PHY_READ(sc, BRGPHY_MII_DSP_RW_PORT); PHY_WRITE(sc, BRGPHY_MII_DSP_RW_PORT, data | 0x0200); } void brgphy_bcm54k2_dspcode(struct mii_softc *sc) { static const struct { int reg; uint16_t val; } dspcode[] = { { 4, 0x01e1 }, { 9, 0x0300 }, { 0, 0 }, }; int i; for (i = 0; dspcode[i].reg != 0; i++) PHY_WRITE(sc, dspcode[i].reg, dspcode[i].val); } void brgphy_bcm5703_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); } void brgphy_bcm5704_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); } void brgphy_bcm5750_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); } void brgphy_load_dspcode(struct mii_softc *sc) { switch (sc->mii_model) { case MII_MODEL_BROADCOM_BCM5400: brgphy_bcm5401_dspcode(sc); break; case MII_MODEL_BROADCOM_BCM5401: if (sc->mii_rev == 1 || sc->mii_rev == 3) brgphy_bcm5401_dspcode(sc); break; case MII_MODEL_BROADCOM_BCM5411: brgphy_bcm5411_dspcode(sc); break; case MII_MODEL_xxBROADCOM_BCM5421: brgphy_bcm5421_dspcode(sc); break; case MII_MODEL_xxBROADCOM_BCM54K2: brgphy_bcm54k2_dspcode(sc); break; case MII_MODEL_xxBROADCOM_BCM5703: brgphy_bcm5703_dspcode(sc); break; case MII_MODEL_xxBROADCOM_BCM5704: brgphy_bcm5704_dspcode(sc); break; case MII_MODEL_xxBROADCOM_BCM5714: case MII_MODEL_xxBROADCOM_BCM5750: case MII_MODEL_xxBROADCOM_BCM5752: brgphy_bcm5750_dspcode(sc); break; } }