Exemplo n.º 1
0
static void
brgphy_mii_phy_auto(struct mii_softc *sc)
{
	struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
	int ktcr = 0;

	brgphy_reset(sc);

	/* Enable flow control in the advertisement register. */
	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
		/* Pause capability advertisement (pause capable & asymmetric) */
		PHY_WRITE(sc, BRGPHY_MII_ANAR,
	    	BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA |
	    	BRGPHY_ANAR_ASP | BRGPHY_ANAR_PC);
	} else {
		PHY_WRITE(sc, BRGPHY_SERDES_ANAR, BRGPHY_SERDES_ANAR_FDX |
			BRGPHY_SERDES_ANAR_HDX | BRGPHY_SERDES_ANAR_BOTH_PAUSE);
	}

	/* Enable speed in the 1000baseT control register */
	ktcr = BRGPHY_1000CTL_AFD | BRGPHY_1000CTL_AHD;
	if (bsc->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);

	/* Start autonegotiation */
	PHY_WRITE(sc, BRGPHY_MII_BMCR,BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
	PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);

}
Exemplo n.º 2
0
static int
brgphy_attach(device_t dev)
{
	struct mii_softc *sc;
	struct mii_attach_args *ma;
	struct mii_data *mii;

	sc = device_get_softc(dev);
	ma = device_get_ivars(dev);
	mii_softc_init(sc, ma);
	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_service = brgphy_service;
	sc->mii_reset = brgphy_reset;
	sc->mii_pdata = mii;

	sc->mii_flags |= MIIF_NOISOLATE;
	mii->mii_instance++;

	brgphy_reset(sc);

#define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)

	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
	    MII_MEDIA_NONE);
#if 0
	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_LOOP, sc->mii_inst),
	    MII_MEDIA_100_TX);
#endif

#undef ADD

	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, " ");
	if ((sc->mii_capabilities & BMSR_MEDIAMASK) ||
	    (sc->mii_extcapabilities & EXTSR_MEDIAMASK))
		mii_phy_add_media(sc);
	else
		kprintf("no media present");
	kprintf("\n");

	MIIBUS_MEDIAINIT(sc->mii_dev);
	return(0);
}
Exemplo n.º 3
0
static void
brgphy_mii_phy_auto(struct mii_softc *sc)
{
	int ktcr;

	brgphy_reset(sc);

	PHY_WRITE(sc, BRGPHY_MII_ANAR,
	    BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | ANAR_CSMA);
	DELAY(1000);

	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_BMCR,
	    BRGPHY_BMCR_AUTOEN | BRGPHY_BMCR_STARTNEG);
	PHY_WRITE(sc, BRGPHY_MII_IMR, 0xFF00);
}
Exemplo n.º 4
0
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, speed, gig;

	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;

		brgphy_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
			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_ANAR, BRGPHY_SEL_TYPE);
			PHY_WRITE(sc, BRGPHY_MII_BMCR, speed);

			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 settning 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;
#ifdef foo
		case IFM_NONE:
			PHY_WRITE(sc, MII_BMCR, BMCR_ISO|BMCR_PDOWN);
			break;
#endif
		case IFM_100_T4:
		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, MII_BMSR) | PHY_READ(sc, MII_BMSR);
		if (reg & BMSR_LINK) {
			sc->mii_ticks = 0;
			break;
		}

		/*
		 * Only retry autonegotiation every 5 seconds.
		 */
		if (++sc->mii_ticks <= sc->mii_anegticks)
			break;

		sc->mii_ticks = 0;
		brgphy_mii_phy_auto(sc);
		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_xxBROADCOM_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;
		}
	}
	mii_phy_update(sc, cmd);
	return (0);
}
Exemplo n.º 5
0
static int
brgphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
{
	struct brgphy_softc *bsc = (struct brgphy_softc *)sc;
	struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
	int error = 0;
	int val;

	switch (cmd) {
	case MII_POLLSTAT:
		/* If we're not polling our PHY instance, just return. */
		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
			goto brgphy_service_exit;
		break;
	case MII_MEDIACHG:
		/*
		 * If the media indicates a different PHY instance,
		 * isolate ourselves.
		 */
		if (IFM_INST(ife->ifm_media) != sc->mii_inst) {
			PHY_WRITE(sc, MII_BMCR,
			    PHY_READ(sc, MII_BMCR) | BMCR_ISO);
			goto brgphy_service_exit;
		}

		/* If the interface is not up, don't do anything. */
		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
			break;

		/* Todo: Why is this here?  Is it really needed? */
		brgphy_reset(sc);	/* XXX hardware bug work-around */

		switch (IFM_SUBTYPE(ife->ifm_media)) {
		case IFM_AUTO:
			brgphy_mii_phy_auto(sc);
			break;
		case IFM_2500_SX:
		case IFM_1000_SX:
		case IFM_1000_T:
		case IFM_100_TX:
		case IFM_10_T:
			brgphy_setmedia(sc, ife->ifm_media,
			    mii->mii_ifp->if_flags & IFF_LINK0);
			break;
		default:
			error = EINVAL;
			goto brgphy_service_exit;
		}
		break;
	case MII_TICK:
		/* Bail if we're not currently selected. */
		if (IFM_INST(ife->ifm_media) != sc->mii_inst)
			goto brgphy_service_exit;

		/* Bail if the interface isn't up. */
		if ((mii->mii_ifp->if_flags & IFF_UP) == 0)
			goto brgphy_service_exit;


		/* Bail if autoneg isn't in process. */
		if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
			sc->mii_ticks = 0;
			break;
		}

		/*
		 * Check to see if we have link.  If we do, we don't
		 * need to restart the autonegotiation process.
		 */
		val	= PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
		if (val & BMSR_LINK) {
			sc->mii_ticks = 0;	/* Reset autoneg timer. */
			break;
		}

		/* Announce link loss right after it happens. */
		if (sc->mii_ticks++ == 0)
			break;

		/* Only retry autonegotiation every mii_anegticks seconds. */
		if (sc->mii_ticks <= sc->mii_anegticks)
			break;


		/* Retry autonegotiation */
		sc->mii_ticks = 0;
		brgphy_mii_phy_auto(sc);
		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 (bsc->mii_oui) {
		case MII_OUI_BROADCOM:
			break;
		case MII_OUI_xxBROADCOM:
			switch (bsc->mii_model) {
			case MII_MODEL_xxBROADCOM_BCM5400:
				bcm5401_load_dspcode(sc);
				break;
			case MII_MODEL_xxBROADCOM_BCM5401:
				if (bsc->mii_rev == 1 || bsc->mii_rev == 3)
					bcm5401_load_dspcode(sc);
				break;
			case MII_MODEL_xxBROADCOM_BCM5411:
				bcm5411_load_dspcode(sc);
				break;
			}
			break;
		case MII_OUI_xxBROADCOM_ALT1:
			break;
		}
	}
	mii_phy_update(sc, cmd);
brgphy_service_exit:
	return (error);
}
Exemplo n.º 6
0
/* Attach the PHY to the MII bus */
static int
brgphy_attach(device_t dev)
{
	struct brgphy_softc *bsc;
	struct bge_softc *bge_sc = NULL;
	struct bce_softc *bce_sc = NULL;
	struct mii_softc *sc;
	struct mii_attach_args *ma;
	struct mii_data *mii;
	struct ifnet *ifp;
	int fast_ether;

	bsc = device_get_softc(dev);
	sc = &bsc->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);

	/* Initialize mii_softc structure */
	sc->mii_inst = mii->mii_instance;
	sc->mii_phy = ma->mii_phyno;
	sc->mii_service = brgphy_service;
	sc->mii_pdata = mii;
	sc->mii_anegticks = MII_ANEGTICKS_GIGE;
	sc->mii_flags |= MIIF_NOISOLATE | MIIF_NOLOOP;
	mii->mii_instance++;

	/* Initialize brgphy_softc structure */
	bsc->mii_oui = MII_OUI(ma->mii_id1, ma->mii_id2);
	bsc->mii_model = MII_MODEL(ma->mii_id2);
	bsc->mii_rev = MII_REV(ma->mii_id2);
	bsc->serdes_flags = 0;

	fast_ether = 0;

	if (bootverbose)
		device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
		    bsc->mii_oui, bsc->mii_model, bsc->mii_rev);

	/* Handle any special cases based on the PHY ID */
	switch (bsc->mii_oui) {
	case MII_OUI_BROADCOM:
	case MII_OUI_BROADCOM2:
		break;
	case MII_OUI_xxBROADCOM:
		switch (bsc->mii_model) {
			case MII_MODEL_xxBROADCOM_BCM5706:
				/*
				 * The 5464 PHY used in the 5706 supports both copper
				 * and fiber interfaces over GMII.  Need to check the
				 * shadow registers to see which mode is actually
				 * in effect, and therefore whether we have 5706C or
				 * 5706S.
				 */
				PHY_WRITE(sc, BRGPHY_MII_SHADOW_1C,
					BRGPHY_SHADOW_1C_MODE_CTRL);
				if (PHY_READ(sc, BRGPHY_MII_SHADOW_1C) &
					BRGPHY_SHADOW_1C_ENA_1000X) {
					bsc->serdes_flags |= BRGPHY_5706S;
					sc->mii_flags |= MIIF_HAVEFIBER;
				}
				break;
		} break;
	case MII_OUI_xxBROADCOM_ALT1:
		switch (bsc->mii_model) {
			case MII_MODEL_xxBROADCOM_ALT1_BCM5708S:
				bsc->serdes_flags |= BRGPHY_5708S;
				sc->mii_flags |= MIIF_HAVEFIBER;
				break;
		} break;
	default:
		device_printf(dev, "Unrecognized OUI for PHY!\n");
	}

	ifp = sc->mii_pdata->mii_ifp;

	/* Find the MAC driver associated with this PHY. */
	if (strcmp(ifp->if_dname, "bge") == 0)	{
		bge_sc = ifp->if_softc;
	} else if (strcmp(ifp->if_dname, "bce") == 0) {
		bce_sc = ifp->if_softc;
	}

	/* Todo: Need to add additional controllers such as 5906 & 5787F */
	/* The 590x chips are 10/100 only. */
	if (bge_sc &&
	    pci_get_vendor(bge_sc->bge_dev) == BCOM_VENDORID &&
	    (pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5901 ||
	    pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5901A2 ||
	    pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5906 ||
	    pci_get_device(bge_sc->bge_dev) == BCOM_DEVICEID_BCM5906M)) {
		fast_ether = 1;
		sc->mii_anegticks = MII_ANEGTICKS;
	}

	brgphy_reset(sc);

	/* Read the PHY's capabilities. */
	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, " ");

#define	ADD(m, c)	ifmedia_add(&mii->mii_media, (m), (c), NULL)

	/* Create an instance of Ethernet media. */
	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst), BMCR_ISO);

	/* Add the supported media types */
	if ((sc->mii_flags & MIIF_HAVEFIBER) == 0) {
		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst),
			BRGPHY_S10);
		printf("10baseT, ");
		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst),
			BRGPHY_S10 | BRGPHY_BMCR_FDX);
		printf("10baseT-FDX, ");
		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst),
			BRGPHY_S100);
		printf("100baseTX, ");
		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst),
			BRGPHY_S100 | BRGPHY_BMCR_FDX);
		printf("100baseTX-FDX, ");
		if (fast_ether == 0) {
			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0, sc->mii_inst),
				BRGPHY_S1000);
			printf("1000baseT, ");
			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX, sc->mii_inst),
				BRGPHY_S1000 | BRGPHY_BMCR_FDX);
			printf("1000baseT-FDX, ");
		}
	} else {
		ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, sc->mii_inst),
			BRGPHY_S1000 | BRGPHY_BMCR_FDX);
		printf("1000baseSX-FDX, ");
		/* 2.5G support is a software enabled feature on the 5708S and 5709S. */
		if (bce_sc && (bce_sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)) {
			ADD(IFM_MAKEWORD(IFM_ETHER, IFM_2500_SX, IFM_FDX, sc->mii_inst), 0);
			printf("2500baseSX-FDX, ");
		}
	}

	ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 0);
	printf("auto\n");

#undef ADD
	MIIBUS_MEDIAINIT(sc->mii_dev);
	return (0);
}