/* $OpenBSD: brgphy.c,v 1.70 2007/01/10 23:04:53 kettenis 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 #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 *); void brgphy_loop(struct mii_softc *); void brgphy_reset(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_adc_bug(struct mii_softc *); void brgphy_5704_a0_bug(struct mii_softc *); void brgphy_ber_bug(struct mii_softc *); void brgphy_jitter_bug(struct mii_softc *); void brgphy_jumbo_settings(struct mii_softc *); void brgphy_eth_wirespeed(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 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5780, MII_STR_xxBROADCOM_BCM5780 }, { MII_OUI_xxBROADCOM2, MII_MODEL_xxBROADCOM2_BCM5755, MII_STR_xxBROADCOM2_BCM5755 }, { MII_OUI_xxBROADCOM2, MII_MODEL_xxBROADCOM2_BCM5787, MII_STR_xxBROADCOM2_BCM5787 }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5706C, MII_STR_xxBROADCOM_BCM5706C }, { MII_OUI_xxBROADCOM, MII_MODEL_xxBROADCOM_BCM5708C, MII_STR_xxBROADCOM_BCM5708C }, { 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: (void) brgphy_mii_phy_auto(sc); break; case IFM_1000_T: speed = BRGPHY_S1000; 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; if (mii->mii_media.ifm_media & IFM_ETH_MASTER) gig |= BRGPHY_1000CTL_MSE|BRGPHY_1000CTL_MSC; PHY_WRITE(sc, BRGPHY_MII_1000CTL, gig); 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; brgphy_mii_phy_auto(sc); break; } /* 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) { switch (sc->mii_model) { case MII_MODEL_BROADCOM_BCM5400: brgphy_bcm5401_dspcode(sc); break; case MII_MODEL_xxBROADCOM_BCM5401: if (sc->mii_rev == 1 || sc->mii_rev == 3) brgphy_bcm5401_dspcode(sc); break; case MII_MODEL_xxBROADCOM_BCM5411: brgphy_bcm5411_dspcode(sc); break; } } /* Callback if something changed. */ 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, gsr; 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; } if (mii->mii_media_active & IFM_FDX) mii->mii_media_active |= mii_phy_flowstatus(sc); gsr = PHY_READ(sc, BRGPHY_MII_1000STS); if ((IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) && gsr & BRGPHY_1000STS_MSR) mii->mii_media_active |= IFM_ETH_MASTER; return; } mii->mii_media_active = ife->ifm_media; } int brgphy_mii_phy_auto(struct mii_softc *sc) { int anar, ktcr = 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); anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA; if (sc->mii_flags & MIIF_DOPAUSE) anar |= BRGPHY_ANAR_PC | BRGPHY_ANAR_ASP; PHY_WRITE(sc, BRGPHY_MII_ANAR, anar); DELAY(1000); PHY_WRITE(sc, BRGPHY_MII_BMCR, BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG); PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00); 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 = NULL; char *devname; devname = sc->mii_dev.dv_parent->dv_cfdata->cf_driver->cd_name; mii_phy_reset(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; } if (strcmp(devname, "bge") == 0) { bge_sc = sc->mii_pdata->mii_ifp->if_softc; if (bge_sc->bge_flags & BGE_PHY_ADC_BUG) brgphy_adc_bug(sc); if (bge_sc->bge_flags & BGE_PHY_5704_A0_BUG) brgphy_5704_a0_bug(sc); if (bge_sc->bge_flags & BGE_PHY_BER_BUG) brgphy_ber_bug(sc); if (bge_sc->bge_flags & BGE_PHY_JITTER_BUG) brgphy_jitter_bug(sc); /* Set Jumbo frame settings in the PHY. */ if (bge_sc->bge_flags & BGE_JUMBO_CAP) brgphy_jumbo_settings(sc); /* Enable Ethernet@Wirespeed */ if (!(bge_sc->bge_flags & BGE_NO_ETH_WIRE_SPEED)) brgphy_eth_wirespeed(sc); /* Enable Link LED on Dell boxes */ if (bge_sc->bge_flags & BGE_NO_3LED) { PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL, PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL) & ~BRGPHY_PHY_EXTCTL_3_LED); } } else if (strcmp(devname, "bnx") == 0) { brgphy_ber_bug(sc); /* Set Jumbo frame settings in the PHY. */ brgphy_jumbo_settings(sc); /* Enable Ethernet@Wirespeed */ brgphy_eth_wirespeed(sc); } } /* 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_adc_bug(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 }, { BRGPHY_MII_DSP_ADDR_REG, 0x000a }, { BRGPHY_MII_DSP_RW_PORT, 0x0323 }, { 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_5704_a0_bug(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_ber_bug(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_jitter_bug(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, 0x010b }, { 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_jumbo_settings(struct mii_softc *sc) { u_int32_t val; /* Set Jumbo frame settings in the PHY. */ if (sc->mii_model == MII_MODEL_BROADCOM_BCM5401) { /* Cannot do read-modify-write on the BCM5401 */ PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x4c20); } else { PHY_WRITE(sc, BRGPHY_MII_AUXCTL, 0x7); val = PHY_READ(sc, BRGPHY_MII_AUXCTL); PHY_WRITE(sc, BRGPHY_MII_AUXCTL, val & ~(BRGPHY_AUXCTL_LONG_PKT | 0x7)); } val = PHY_READ(sc, BRGPHY_MII_PHY_EXTCTL); PHY_WRITE(sc, BRGPHY_MII_PHY_EXTCTL, val & ~BRGPHY_PHY_EXTCTL_HIGH_LA); } void brgphy_eth_wirespeed(struct mii_softc *sc) { u_int32_t val; /* 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))); }