Example #1
0
File: macb.c Project: DFE/u-boot
static int macb_phy_init(struct macb_device *macb)
{
	struct eth_device *netdev = &macb->netdev;
#ifdef CONFIG_PHYLIB
	struct phy_device *phydev;
#endif
	u32 ncfgr;
	u16 phy_id, status, adv, lpa;
	int media, speed, duplex;
	int i;

	arch_get_mdio_control(netdev->name);
#ifdef CONFIG_MACB_SEARCH_PHY
	/* Auto-detect phy_addr */
	if (!macb_phy_find(macb)) {
		return 0;
	}
#endif /* CONFIG_MACB_SEARCH_PHY */

	/* Check if the PHY is up to snuff... */
	phy_id = macb_mdio_read(macb, MII_PHYSID1);
	if (phy_id == 0xffff) {
		printf("%s: No PHY present\n", netdev->name);
		return 0;
	}

#ifdef CONFIG_PHYLIB
	phydev->bus = macb->bus;
	phydev->dev = netdev;
	phydev->addr = macb->phy_addr;
	phy_config(phydev);
#endif

	status = macb_mdio_read(macb, MII_BMSR);
	if (!(status & BMSR_LSTATUS)) {
		/* Try to re-negotiate if we don't have link already. */
		macb_phy_reset(macb);

		for (i = 0; i < CONFIG_SYS_MACB_AUTONEG_TIMEOUT / 100; i++) {
			status = macb_mdio_read(macb, MII_BMSR);
			if (status & BMSR_LSTATUS)
				break;
			udelay(100);
		}
	}

	if (!(status & BMSR_LSTATUS)) {
		printf("%s: link down (status: 0x%04x)\n",
		       netdev->name, status);
		return 0;
	}

	/* First check for GMAC */
	if (macb_is_gem(macb)) {
		lpa = macb_mdio_read(macb, MII_STAT1000);
		if (lpa & (1 << 11)) {
			speed = 1000;
			duplex = 1;
		} else {
		       if (lpa & (1 << 10)) {
				speed = 1000;
				duplex = 1;
			} else {
				speed = 0;
			}
		}

		if (speed == 1000) {
			printf("%s: link up, %dMbps %s-duplex (lpa: 0x%04x)\n",
			       netdev->name,
			       speed,
			       duplex ? "full" : "half",
			       lpa);

			ncfgr = macb_readl(macb, NCFGR);
			ncfgr &= ~(GEM_BIT(GBE) | MACB_BIT(SPD) | MACB_BIT(FD));
			if (speed)
				ncfgr |= GEM_BIT(GBE);
			if (duplex)
				ncfgr |= MACB_BIT(FD);
			macb_writel(macb, NCFGR, ncfgr);

			return 1;
		}
	}

	/* fall back for EMAC checking */
	adv = macb_mdio_read(macb, MII_ADVERTISE);
	lpa = macb_mdio_read(macb, MII_LPA);
	media = mii_nway_result(lpa & adv);
	speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF)
		 ? 1 : 0);
	duplex = (media & ADVERTISE_FULL) ? 1 : 0;
	printf("%s: link up, %sMbps %s-duplex (lpa: 0x%04x)\n",
	       netdev->name,
	       speed ? "100" : "10",
	       duplex ? "full" : "half",
	       lpa);

	ncfgr = macb_readl(macb, NCFGR);
	ncfgr &= ~(MACB_BIT(SPD) | MACB_BIT(FD));
	if (speed)
		ncfgr |= MACB_BIT(SPD);
	if (duplex)
		ncfgr |= MACB_BIT(FD);
	macb_writel(macb, NCFGR, ncfgr);

	return 1;
}
Example #2
0
static int macb_phy_init(struct macb_device *macb, const char *name)
#endif
{
#ifdef CONFIG_DM_ETH
	struct macb_device *macb = dev_get_priv(dev);
#endif
	u32 ncfgr;
	u16 phy_id, status, adv, lpa;
	int media, speed, duplex;
	int i;

	arch_get_mdio_control(name);
	/* Auto-detect phy_addr */
	if (!macb_phy_find(macb, name))
		return 0;

	/* Check if the PHY is up to snuff... */
	phy_id = macb_mdio_read(macb, MII_PHYSID1);
	if (phy_id == 0xffff) {
		printf("%s: No PHY present\n", name);
		return 0;
	}

#ifdef CONFIG_PHYLIB
#ifdef CONFIG_DM_ETH
	macb->phydev = phy_connect(macb->bus, macb->phy_addr, dev,
			     macb->phy_interface);
#else
	/* need to consider other phy interface mode */
	macb->phydev = phy_connect(macb->bus, macb->phy_addr, &macb->netdev,
			     PHY_INTERFACE_MODE_RGMII);
#endif
	if (!macb->phydev) {
		printf("phy_connect failed\n");
		return -ENODEV;
	}

	phy_config(macb->phydev);
#endif

	status = macb_mdio_read(macb, MII_BMSR);
	if (!(status & BMSR_LSTATUS)) {
		/* Try to re-negotiate if we don't have link already. */
		macb_phy_reset(macb, name);

		for (i = 0; i < MACB_AUTONEG_TIMEOUT / 100; i++) {
			status = macb_mdio_read(macb, MII_BMSR);
			if (status & BMSR_LSTATUS)
				break;
			udelay(100);
		}
	}

	if (!(status & BMSR_LSTATUS)) {
		printf("%s: link down (status: 0x%04x)\n",
		       name, status);
		return 0;
	}

	/* First check for GMAC and that it is GiB capable */
	if (gem_is_gigabit_capable(macb)) {
		lpa = macb_mdio_read(macb, MII_STAT1000);

		if (lpa & (LPA_1000FULL | LPA_1000HALF)) {
			duplex = ((lpa & LPA_1000FULL) ? 1 : 0);

			printf("%s: link up, 1000Mbps %s-duplex (lpa: 0x%04x)\n",
			       name,
			       duplex ? "full" : "half",
			       lpa);

			ncfgr = macb_readl(macb, NCFGR);
			ncfgr &= ~(MACB_BIT(SPD) | MACB_BIT(FD));
			ncfgr |= GEM_BIT(GBE);

			if (duplex)
				ncfgr |= MACB_BIT(FD);

			macb_writel(macb, NCFGR, ncfgr);

			return 1;
		}
	}

	/* fall back for EMAC checking */
	adv = macb_mdio_read(macb, MII_ADVERTISE);
	lpa = macb_mdio_read(macb, MII_LPA);
	media = mii_nway_result(lpa & adv);
	speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF)
		 ? 1 : 0);
	duplex = (media & ADVERTISE_FULL) ? 1 : 0;
	printf("%s: link up, %sMbps %s-duplex (lpa: 0x%04x)\n",
	       name,
	       speed ? "100" : "10",
	       duplex ? "full" : "half",
	       lpa);

	ncfgr = macb_readl(macb, NCFGR);
	ncfgr &= ~(MACB_BIT(SPD) | MACB_BIT(FD) | GEM_BIT(GBE));
	if (speed)
		ncfgr |= MACB_BIT(SPD);
	if (duplex)
		ncfgr |= MACB_BIT(FD);
	macb_writel(macb, NCFGR, ncfgr);

	return 1;
}
Example #3
0
static int macb_phy_init(struct macb_device *macb)
{
	struct eth_device *netdev = &macb->netdev;
	u32 ncfgr;
	u16 phy_id, status, adv, lpa;
	int media, speed, duplex;
	int i;

	if (macb->phy_addr == 0xff) {
		/* Auto-detect phy_addr */
		if (!macb_phy_find(macb)) {
			return 0;
		}
	}

	/* Check if the PHY is up to snuff... */
	phy_id = macb_mdio_read(macb, MII_PHYSID1);
	if (phy_id == 0xffff) {
		printf("%s: No PHY present\n", netdev->name);
		return 0;
	}

	status = macb_mdio_read(macb, MII_BMSR);
	if (!(status & BMSR_LSTATUS)) {
		/* Try to re-negotiate if we don't have link already. */
		macb_phy_reset(macb);

		for (i = 0; i < CFG_MACB_AUTONEG_TIMEOUT / 100; i++) {
			status = macb_mdio_read(macb, MII_BMSR);
			if (status & BMSR_LSTATUS)
				break;
			udelay(100);
		}
	}

	if (!(status & BMSR_LSTATUS)) {
		printf("%s: link down (status: 0x%04x)\n",
		       netdev->name, status);
		return 0;
	} else {
		adv = macb_mdio_read(macb, MII_ADVERTISE);
		lpa = macb_mdio_read(macb, MII_LPA);
		media = mii_nway_result(lpa & adv);
		speed = (media & (ADVERTISE_100FULL | ADVERTISE_100HALF)
			 ? 1 : 0);
		duplex = (media & ADVERTISE_FULL) ? 1 : 0;
		printf("%s: link up, %sMbps %s-duplex (lpa: 0x%04x)\n",
		       netdev->name,
		       speed ? "100" : "10",
		       duplex ? "full" : "half",
		       lpa);

		ncfgr = macb_readl(macb, NCFGR);
		ncfgr &= ~(MACB_BIT(SPD) | MACB_BIT(FD));
		if (speed)
			ncfgr |= MACB_BIT(SPD);
		if (duplex)
			ncfgr |= MACB_BIT(FD);
		macb_writel(macb, NCFGR, ncfgr);
		return 1;
	}
}