Attachment #77702 for bug #119771




/*
 * New driver for Marvell Yukon 2 chipset.
 * Based on earlier sk98lin, and skge driver.
 *
 * This driver intentionally does not support all the features
 * of the original driver such as link fail-over and link management because
 * those should be done at higher levels.
 *
 * Copyright (C) 2005 Stephen Hemminger <shemminger@osdl.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*
 * TOTEST
 *	- speed setting
 *	- suspend/resume
 */

#include <linux/config.h>
#include <linux/crc32.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/dma-mapping.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/pci.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/in.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/if_vlan.h>
#include <linux/prefetch.h>
#include <linux/mii.h>

#include <asm/irq.h>

#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
#define SKY2_VLAN_TAG_USED 1
#endif

#include "sky2.h"

#define DRV_NAME		"sky2"
#define DRV_VERSION		"0.13"
#define PFX			DRV_NAME " "

/*
 * The Yukon II chipset takes 64 bit command blocks (called list elements)
 * that are organized into three (receive, transmit, status) different rings
 * similar to Tigon3. A transmit can require several elements;
 * a receive requires one (or two if using 64 bit dma).
 */

#define is_ec_a1(hw) \
	unlikely((hw)->chip_id == CHIP_ID_YUKON_EC && \
		 (hw)->chip_rev == CHIP_REV_YU_EC_A1)

#define RX_LE_SIZE	    	512
#define RX_LE_BYTES		(RX_LE_SIZE*sizeof(struct sky2_rx_le))
#define RX_MAX_PENDING		(RX_LE_SIZE/2 - 2)
#define RX_DEF_PENDING		RX_MAX_PENDING
#define RX_SKB_ALIGN		8

#define TX_RING_SIZE		512
#define TX_DEF_PENDING		(TX_RING_SIZE - 1)
#define TX_MIN_PENDING		64
#define MAX_SKB_TX_LE		(4 + 2*MAX_SKB_FRAGS)

#define STATUS_RING_SIZE	2048	/* 2 ports * (TX + 2*RX) */
#define STATUS_LE_BYTES		(STATUS_RING_SIZE*sizeof(struct sky2_status_le))
#define ETH_JUMBO_MTU		9000
#define TX_WATCHDOG		(5 * HZ)
#define NAPI_WEIGHT		64
#define PHY_RETRIES		1000

static const u32 default_msg =
    NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
    | NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
    | NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;

static int debug = -1;		/* defaults above */
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");

static int copybreak __read_mostly = 256;
module_param(copybreak, int, 0);
MODULE_PARM_DESC(copybreak, "Receive copy threshold");

static const struct pci_device_id sky2_id_table[] = {
	{ PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) },
	{ PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) },
	{ PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b00) },
	{ PCI_DEVICE(PCI_VENDOR_ID_DLINK, 0x4b01) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4340) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4341) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4342) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4343) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4344) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4345) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4346) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4347) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4350) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) },
	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) },
	{ 0 }
};

MODULE_DEVICE_TABLE(pci, sky2_id_table);

/* Avoid conditionals by using array */
static const unsigned txqaddr[] = { Q_XA1, Q_XA2 };
static const unsigned rxqaddr[] = { Q_R1, Q_R2 };

/* This driver supports yukon2 chipset only */
static const char *yukon2_name[] = {
	"XL",		/* 0xb3 */
	"EC Ultra", 	/* 0xb4 */
	"UNKNOWN",	/* 0xb5 */
	"EC",		/* 0xb6 */
	"FE",		/* 0xb7 */
};

/* Access to external PHY */
static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val)
{
	int i;

	gma_write16(hw, port, GM_SMI_DATA, val);
	gma_write16(hw, port, GM_SMI_CTRL,
		    GM_SMI_CT_PHY_AD(PHY_ADDR_MARV) | GM_SMI_CT_REG_AD(reg));

	for (i = 0; i < PHY_RETRIES; i++) {
		if (!(gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_BUSY))
			return 0;
		udelay(1);
	}

	printk(KERN_WARNING PFX "%s: phy write timeout\n", hw->dev[port]->name);
	return -ETIMEDOUT;
}

static int __gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg, u16 *val)
{
	int i;

	gma_write16(hw, port, GM_SMI_CTRL, GM_SMI_CT_PHY_AD(PHY_ADDR_MARV)
		    | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD);

	for (i = 0; i < PHY_RETRIES; i++) {
		if (gma_read16(hw, port, GM_SMI_CTRL) & GM_SMI_CT_RD_VAL) {
			*val = gma_read16(hw, port, GM_SMI_DATA);
			return 0;
		}

		udelay(1);
	}

	return -ETIMEDOUT;
}

static u16 gm_phy_read(struct sky2_hw *hw, unsigned port, u16 reg)
{
	u16 v;

	if (__gm_phy_read(hw, port, reg, &v) != 0)
		printk(KERN_WARNING PFX "%s: phy read timeout\n", hw->dev[port]->name);
	return v;
}

static int sky2_set_power_state(struct sky2_hw *hw, pci_power_t state)
{
	u16 power_control;
	u32 reg1;
	int vaux;
	int ret = 0;

	pr_debug("sky2_set_power_state %d\n", state);
	sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);

	pci_read_config_word(hw->pdev, hw->pm_cap + PCI_PM_PMC, &power_control);
	vaux = (sky2_read8(hw, B0_CTST) & Y2_VAUX_AVAIL) &&
		(power_control & PCI_PM_CAP_PME_D3cold);

	pci_read_config_word(hw->pdev, hw->pm_cap + PCI_PM_CTRL, &power_control);

	power_control |= PCI_PM_CTRL_PME_STATUS;
	power_control &= ~(PCI_PM_CTRL_STATE_MASK);

	switch (state) {
	case PCI_D0:
		/* switch power to VCC (WA for VAUX problem) */
		sky2_write8(hw, B0_POWER_CTRL,
			    PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);

		/* disable Core Clock Division, */
		sky2_write32(hw, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS);

		if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
			/* enable bits are inverted */
			sky2_write8(hw, B2_Y2_CLK_GATE,
				    Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
				    Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
				    Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);
		else
			sky2_write8(hw, B2_Y2_CLK_GATE, 0);

		/* Turn off phy power saving */
		pci_read_config_dword(hw->pdev, PCI_DEV_REG1, &reg1);
		reg1 &= ~(PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD);

		/* looks like this XL is back asswards .. */
		if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1) {
			reg1 |= PCI_Y2_PHY1_COMA;
			if (hw->ports > 1)
				reg1 |= PCI_Y2_PHY2_COMA;
		}
		pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg1);
		break;

	case PCI_D3hot:
	case PCI_D3cold:
		/* Turn on phy power saving */
		pci_read_config_dword(hw->pdev, PCI_DEV_REG1, &reg1);
		if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
			reg1 &= ~(PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD);
		else
			reg1 |= (PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD);
		pci_write_config_dword(hw->pdev, PCI_DEV_REG1, reg1);

		if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev > 1)
			sky2_write8(hw, B2_Y2_CLK_GATE, 0);
		else
			/* enable bits are inverted */
			sky2_write8(hw, B2_Y2_CLK_GATE,
				    Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS |
				    Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS |
				    Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS);

		/* switch power to VAUX */
		if (vaux && state != PCI_D3cold)
			sky2_write8(hw, B0_POWER_CTRL,
				    (PC_VAUX_ENA | PC_VCC_ENA |
				     PC_VAUX_ON | PC_VCC_OFF));
		break;
	default:
		printk(KERN_ERR PFX "Unknown power state %d\n", state);
		ret = -1;
	}

	pci_write_config_byte(hw->pdev, hw->pm_cap + PCI_PM_CTRL, power_control);
	sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
	return ret;
}

static void sky2_phy_reset(struct sky2_hw *hw, unsigned port)
{
	u16 reg;

	/* disable all GMAC IRQ's */
	sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), 0);
	/* disable PHY IRQs */
	gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);

	gma_write16(hw, port, GM_MC_ADDR_H1, 0);	/* clear MC hash */
	gma_write16(hw, port, GM_MC_ADDR_H2, 0);
	gma_write16(hw, port, GM_MC_ADDR_H3, 0);
	gma_write16(hw, port, GM_MC_ADDR_H4, 0);

	reg = gma_read16(hw, port, GM_RX_CTRL);
	reg |= GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA;
	gma_write16(hw, port, GM_RX_CTRL, reg);
}

static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
{
	struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
	u16 ctrl, ct1000, adv, pg, ledctrl, ledover;

	if (sky2->autoneg == AUTONEG_ENABLE && hw->chip_id != CHIP_ID_YUKON_XL) {
		u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);

		ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
			   PHY_M_EC_MAC_S_MSK);
		ectrl |= PHY_M_EC_MAC_S(MAC_TX_CLK_25_MHZ);

		if (hw->chip_id == CHIP_ID_YUKON_EC)
			ectrl |= PHY_M_EC_DSC_2(2) | PHY_M_EC_DOWN_S_ENA;
		else
			ectrl |= PHY_M_EC_M_DSC(2) | PHY_M_EC_S_DSC(3);

		gm_phy_write(hw, port, PHY_MARV_EXT_CTRL, ectrl);
	}

	ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
	if (hw->copper) {
		if (hw->chip_id == CHIP_ID_YUKON_FE) {
			/* enable automatic crossover */
			ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
		} else {
			/* disable energy detect */
			ctrl &= ~PHY_M_PC_EN_DET_MSK;

			/* enable automatic crossover */
			ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO);

			if (sky2->autoneg == AUTONEG_ENABLE &&
			    hw->chip_id == CHIP_ID_YUKON_XL) {
				ctrl &= ~PHY_M_PC_DSC_MSK;
				ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
			}
		}
		gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
	} else {
		/* workaround for deviation #4.88 (CRC errors) */
		/* disable Automatic Crossover */

		ctrl &= ~PHY_M_PC_MDIX_MSK;
		gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);

		if (hw->chip_id == CHIP_ID_YUKON_XL) {
			/* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
			gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2);
			ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
			ctrl &= ~PHY_M_MAC_MD_MSK;
			ctrl |= PHY_M_MAC_MODE_SEL(PHY_M_MAC_MD_1000BX);
			gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);

			/* select page 1 to access Fiber registers */
			gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 1);
		}
	}

	ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
	if (sky2->autoneg == AUTONEG_DISABLE)
		ctrl &= ~PHY_CT_ANE;
	else
		ctrl |= PHY_CT_ANE;

	ctrl |= PHY_CT_RESET;
	gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);

	ctrl = 0;
	ct1000 = 0;
	adv = PHY_AN_CSMA;

	if (sky2->autoneg == AUTONEG_ENABLE) {
		if (hw->copper) {
			if (sky2->advertising & ADVERTISED_1000baseT_Full)
				ct1000 |= PHY_M_1000C_AFD;
			if (sky2->advertising & ADVERTISED_1000baseT_Half)
				ct1000 |= PHY_M_1000C_AHD;
			if (sky2->advertising & ADVERTISED_100baseT_Full)
				adv |= PHY_M_AN_100_FD;
			if (sky2->advertising & ADVERTISED_100baseT_Half)
				adv |= PHY_M_AN_100_HD;
			if (sky2->advertising & ADVERTISED_10baseT_Full)
				adv |= PHY_M_AN_10_FD;
			if (sky2->advertising & ADVERTISED_10baseT_Half)
				adv |= PHY_M_AN_10_HD;
		} else		/* special defines for FIBER (88E1011S only) */
			adv |= PHY_M_AN_1000X_AHD | PHY_M_AN_1000X_AFD;

		/* Set Flow-control capabilities */
		if (sky2->tx_pause && sky2->rx_pause)
			adv |= PHY_AN_PAUSE_CAP;	/* symmetric */
		else if (sky2->rx_pause && !sky2->tx_pause)
			adv |= PHY_AN_PAUSE_ASYM | PHY_AN_PAUSE_CAP;
		else if (!sky2->rx_pause && sky2->tx_pause)
			adv |= PHY_AN_PAUSE_ASYM;	/* local */

		/* Restart Auto-negotiation */
		ctrl |= PHY_CT_ANE | PHY_CT_RE_CFG;
	} else {
		/* forced speed/duplex settings */
		ct1000 = PHY_M_1000C_MSE;

		if (sky2->duplex == DUPLEX_FULL)
			ctrl |= PHY_CT_DUP_MD;

		switch (sky2->speed) {
		case SPEED_1000:
			ctrl |= PHY_CT_SP1000;
			break;
		case SPEED_100:
			ctrl |= PHY_CT_SP100;
			break;
		}

		ctrl |= PHY_CT_RESET;
	}

	if (hw->chip_id != CHIP_ID_YUKON_FE)
		gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);

	gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
	gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);

	/* Setup Phy LED's */
	ledctrl = PHY_M_LED_PULS_DUR(PULS_170MS);
	ledover = 0;

	switch (hw->chip_id) {
	case CHIP_ID_YUKON_FE:
		/* on 88E3082 these bits are at 11..9 (shifted left) */
		ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) << 1;

		ctrl = gm_phy_read(hw, port, PHY_MARV_FE_LED_PAR);

		/* delete ACT LED control bits */
		ctrl &= ~PHY_M_FELP_LED1_MSK;
		/* change ACT LED control to blink mode */
		ctrl |= PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_ACT_BL);
		gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
		break;

	case CHIP_ID_YUKON_XL:
		pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);

		/* select page 3 to access LED control register */
		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);

		/* set LED Function Control register */
		gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, (PHY_M_LEDC_LOS_CTRL(1) |	/* LINK/ACT */
							   PHY_M_LEDC_INIT_CTRL(7) |	/* 10 Mbps */
							   PHY_M_LEDC_STA1_CTRL(7) |	/* 100 Mbps */
							   PHY_M_LEDC_STA0_CTRL(7)));	/* 1000 Mbps */

		/* set Polarity Control register */
		gm_phy_write(hw, port, PHY_MARV_PHY_STAT,
			     (PHY_M_POLC_LS1_P_MIX(4) |
			      PHY_M_POLC_IS0_P_MIX(4) |
			      PHY_M_POLC_LOS_CTRL(2) |
			      PHY_M_POLC_INIT_CTRL(2) |
			      PHY_M_POLC_STA1_CTRL(2) |
			      PHY_M_POLC_STA0_CTRL(2)));

		/* restore page register */
		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
		break;

	default:
		/* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
		ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
		/* turn off the Rx LED (LED_RX) */
		ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
	}

	gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);

	if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
		/* turn on 100 Mbps LED (LED_LINK100) */
		ledover |= PHY_M_LED_MO_100(MO_LED_ON);
	}

	if (ledover)
		gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);

	/* Enable phy interrupt on auto-negotiation complete (or link up) */
	if (sky2->autoneg == AUTONEG_ENABLE)
		gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_IS_AN_COMPL);
	else
		gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
}

/* Force a renegotiation */
static void sky2_phy_reinit(struct sky2_port *sky2)
{
	down(&sky2->phy_sema);
	sky2_phy_init(sky2->hw, sky2->port);
	up(&sky2->phy_sema);
}

static void sky2_mac_init(struct sky2_hw *hw, unsigned port)
{
	struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
	u16 reg;
	int i;
	const u8 *addr = hw->dev[port]->dev_addr;

	sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
	sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR|GPC_ENA_PAUSE);

	sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);

	if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0 && port == 1) {
		/* WA DEV_472 -- looks like crossed wires on port 2 */
		/* clear GMAC 1 Control reset */
		sky2_write8(hw, SK_REG(0, GMAC_CTRL), GMC_RST_CLR);
		do {
			sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_SET);
			sky2_write8(hw, SK_REG(1, GMAC_CTRL), GMC_RST_CLR);
		} while (gm_phy_read(hw, 1, PHY_MARV_ID0) != PHY_MARV_ID0_VAL ||
			 gm_phy_read(hw, 1, PHY_MARV_ID1) != PHY_MARV_ID1_Y2 ||
			 gm_phy_read(hw, 1, PHY_MARV_INT_MASK) != 0);
	}

	if (sky2->autoneg == AUTONEG_DISABLE) {
		reg = gma_read16(hw, port, GM_GP_CTRL);
		reg |= GM_GPCR_AU_ALL_DIS;
		gma_write16(hw, port, GM_GP_CTRL, reg);
		gma_read16(hw, port, GM_GP_CTRL);

		switch (sky2->speed) {
		case SPEED_1000:
			reg |= GM_GPCR_SPEED_1000;
			/* fallthru */
		case SPEED_100:
			reg |= GM_GPCR_SPEED_100;
		}

		if (sky2->duplex == DUPLEX_FULL)
			reg |= GM_GPCR_DUP_FULL;
	} else
		reg = GM_GPCR_SPEED_1000 | GM_GPCR_SPEED_100 | GM_GPCR_DUP_FULL;

	if (!sky2->tx_pause && !sky2->rx_pause) {
		sky2_write32(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);
		reg |=
		    GM_GPCR_FC_TX_DIS | GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
	} else if (sky2->tx_pause && !sky2->rx_pause) {
		/* disable Rx flow-control */
		reg |= GM_GPCR_FC_RX_DIS | GM_GPCR_AU_FCT_DIS;
	}

	gma_write16(hw, port, GM_GP_CTRL, reg);

	sky2_read16(hw, SK_REG(port, GMAC_IRQ_SRC));

	down(&sky2->phy_sema);
	sky2_phy_init(hw, port);
	up(&sky2->phy_sema);

	/* MIB clear */
	reg = gma_read16(hw, port, GM_PHY_ADDR);
	gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR);

	for (i = 0; i < GM_MIB_CNT_SIZE; i++)
		gma_read16(hw, port, GM_MIB_CNT_BASE + 8 * i);
	gma_write16(hw, port, GM_PHY_ADDR, reg);

	/* transmit control */
	gma_write16(hw, port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF));

	/* receive control reg: unicast + multicast + no FCS  */
	gma_write16(hw, port, GM_RX_CTRL,
		    GM_RXCR_UCF_ENA | GM_RXCR_CRC_DIS | GM_RXCR_MCF_ENA);

	/* transmit flow control */
	gma_write16(hw, port, GM_TX_FLOW_CTRL, 0xffff);

	/* transmit parameter */
	gma_write16(hw, port, GM_TX_PARAM,
		    TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) |
		    TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) |
		    TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) |
		    TX_BACK_OFF_LIM(TX_BOF_LIM_DEF));

	/* serial mode register */
	reg = DATA_BLIND_VAL(DATA_BLIND_DEF) |
		GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);

	if (hw->dev[port]->mtu > ETH_DATA_LEN)
		reg |= GM_SMOD_JUMBO_ENA;

	gma_write16(hw, port, GM_SERIAL_MODE, reg);

	/* virtual address for data */
	gma_set_addr(hw, port, GM_SRC_ADDR_2L, addr);

	/* physical address: used for pause frames */
	gma_set_addr(hw, port, GM_SRC_ADDR_1L, addr);

	/* ignore counter overflows */
	gma_write16(hw, port, GM_TX_IRQ_MSK, 0);
	gma_write16(hw, port, GM_RX_IRQ_MSK, 0);
	gma_write16(hw, port, GM_TR_IRQ_MSK, 0);

	/* Configure Rx MAC FIFO */
	sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
	sky2_write16(hw, SK_REG(port, RX_GMF_CTRL_T),
		     GMF_RX_CTRL_DEF);

	/* Flush Rx MAC FIFO on any flow control or error */
	sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);

	/* Set threshold to 0xa (64 bytes)
	 *  ASF disabled so no need to do WA dev #4.30
	 */
	sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF);

	/* Configure Tx MAC FIFO */
	sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
	sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);

	if (hw->chip_id == CHIP_ID_YUKON_EC_U) {
		sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);
		sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);
		if (hw->dev[port]->mtu > ETH_DATA_LEN) {
			/* set Tx GMAC FIFO Almost Empty Threshold */
			sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR), 0x180);
			/* Disable Store & Forward mode for TX */
			sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_STFW_DIS);
		}
	}

}

/* Assign Ram Buffer allocation.
 * start and end are in units of 4k bytes
 * ram registers are in units of 64bit words
 */
static void sky2_ramset(struct sky2_hw *hw, u16 q, u8 startk, u8 endk)
{
	u32 start, end;

	start = startk * 4096/8;
	end = (endk * 4096/8) - 1;

	sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
	sky2_write32(hw, RB_ADDR(q, RB_START), start);
	sky2_write32(hw, RB_ADDR(q, RB_END), end);
	sky2_write32(hw, RB_ADDR(q, RB_WP), start);
	sky2_write32(hw, RB_ADDR(q, RB_RP), start);

	if (q == Q_R1 || q == Q_R2) {
		u32 space = (endk - startk) * 4096/8;
		u32 tp = space - space/4;

		/* On receive queue's set the thresholds
		 * give receiver priority when > 3/4 full
		 * send pause when down to 2K
		 */
		sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp);
		sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2);

		tp = space - 2048/8;
		sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp);
		sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4);
	} else {
		/* Enable store & forward on Tx queue's because
		 * Tx FIFO is only 1K on Yukon
		 */
		sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
	}

	sky2_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
	sky2_read8(hw, RB_ADDR(q, RB_CTRL));
}

/* Setup Bus Memory Interface */
static void sky2_qset(struct sky2_hw *hw, u16 q)
{
	sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_RESET);
	sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_OPER_INIT);
	sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_FIFO_OP_ON);
	sky2_write32(hw, Q_ADDR(q, Q_WM),  BMU_WM_DEFAULT);
}

/* Setup prefetch unit registers. This is the interface between
 * hardware and driver list elements
 */
static void sky2_prefetch_init(struct sky2_hw *hw, u32 qaddr,
				      u64 addr, u32 last)
{
	sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
	sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_RST_CLR);
	sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_HI), addr >> 32);
	sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_ADDR_LO), (u32) addr);
	sky2_write16(hw, Y2_QADDR(qaddr, PREF_UNIT_LAST_IDX), last);
	sky2_write32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL), PREF_UNIT_OP_ON);

	sky2_read32(hw, Y2_QADDR(qaddr, PREF_UNIT_CTRL));
}

static inline struct sky2_tx_le *get_tx_le(struct sky2_port *sky2)
{
	struct sky2_tx_le *le = sky2->tx_le + sky2->tx_prod;

	sky2->tx_prod = (sky2->tx_prod + 1) % TX_RING_SIZE;
	return le;
}

/*
 * This is a workaround code taken from SysKonnect sk98lin driver
 * to deal with chip bug on Yukon EC rev 0 in the wraparound case.
 */
static void sky2_put_idx(struct sky2_hw *hw, unsigned q,
				u16 idx, u16 *last, u16 size)
{
	wmb();
	if (is_ec_a1(hw) && idx < *last) {
		u16 hwget = sky2_read16(hw, Y2_QADDR(q, PREF_UNIT_GET_IDX));

		if (hwget == 0) {
			/* Start prefetching again */
			sky2_write8(hw, Y2_QADDR(q, PREF_UNIT_FIFO_WM), 0xe0);
			goto setnew;
		}

		if (hwget == size - 1) {
			/* set watermark to one list element */
			sky2_write8(hw, Y2_QADDR(q, PREF_UNIT_FIFO_WM), 8);

			/* set put index to first list element */
			sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), 0);
		} else		/* have hardware go to end of list */
			sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX),
				     size - 1);
	} else {
setnew:
		sky2_write16(hw, Y2_QADDR(q, PREF_UNIT_PUT_IDX), idx);
	}
	*last = idx;
	mmiowb();
}


static inline struct sky2_rx_le *sky2_next_rx(struct sky2_port *sky2)
{
	struct sky2_rx_le *le = sky2->rx_le + sky2->rx_put;
	sky2->rx_put = (sky2->rx_put + 1) % RX_LE_SIZE;
	return le;
}

/* Return high part of DMA address (could be 32 or 64 bit) */
static inline u32 high32(dma_addr_t a)
{
	return sizeof(a) > sizeof(u32) ? (a >> 16) >> 16 : 0;
}

/* Build description to hardware about buffer */
static void sky2_rx_add(struct sky2_port *sky2, dma_addr_t map)
{
	struct sky2_rx_le *le;
	u32 hi = high32(map);
	u16 len = sky2->rx_bufsize;

	if (sky2->rx_addr64 != hi) {
		le = sky2_next_rx(sky2);
		le->addr = cpu_to_le32(hi);
		le->ctrl = 0;
		le->opcode = OP_ADDR64 | HW_OWNER;
		sky2->rx_addr64 = high32(map + len);
	}

	le = sky2_next_rx(sky2);
	le->addr = cpu_to_le32((u32) map);
	le->length = cpu_to_le16(len);
	le->ctrl = 0;
	le->opcode = OP_PACKET | HW_OWNER;
}


/* Tell chip where to start receive checksum.
 * Actually has two checksums, but set both same to avoid possible byte
 * order problems.
 */
static void rx_set_checksum(struct sky2_port *sky2)
{
	struct sky2_rx_le *le;

	le = sky2_next_rx(sky2);
	le->addr = (ETH_HLEN << 16) | ETH_HLEN;
	le->ctrl = 0;
	le->opcode = OP_TCPSTART | HW_OWNER;

	sky2_write32(sky2->hw,
		     Q_ADDR(rxqaddr[sky2->port], Q_CSR),
		     sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);

}

/*
 * The RX Stop command will not work for Yukon-2 if the BMU does not
 * reach the end of packet and since we can't make sure that we have
 * incoming data, we must reset the BMU while it is not doing a DMA
 * transfer. Since it is possible that the RX path is still active,
 * the RX RAM buffer will be stopped first, so any possible incoming
 * data will not trigger a DMA. After the RAM buffer is stopped, the
 * BMU is polled until any DMA in progress is ended and only then it
 * will be reset.
 */
static void sky2_rx_stop(struct sky2_port *sky2)
{
	struct sky2_hw *hw = sky2->hw;
	unsigned rxq = rxqaddr[sky2->port];
	int i;

	/* disable the RAM Buffer receive queue */
	sky2_write8(hw, RB_ADDR(rxq, RB_CTRL), RB_DIS_OP_MD);

	for (i = 0; i < 0xffff; i++)
		if (sky2_read8(hw, RB_ADDR(rxq, Q_RSL))
		    == sky2_read8(hw, RB_ADDR(rxq, Q_RL)))
			goto stopped;

	printk(KERN_WARNING PFX "%s: receiver stop failed\n",
	       sky2->netdev->name);
stopped:
	sky2_write32(hw, Q_ADDR(rxq, Q_CSR), BMU_RST_SET | BMU_FIFO_RST);

	/* reset the Rx prefetch unit */
	sky2_write32(hw, Y2_QADDR(rxq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);
}

/* Clean out receive buffer area, assumes receiver hardware stopped */
static void sky2_rx_clean(struct sky2_port *sky2)
{
	unsigned i;

	memset(sky2->rx_le, 0, RX_LE_BYTES);
	for (i = 0; i < sky2->rx_pending; i++) {
		struct ring_info *re = sky2->rx_ring + i;

		if (re->skb) {
			pci_unmap_single(sky2->hw->pdev,
					 re->mapaddr, sky2->rx_bufsize,
					 PCI_DMA_FROMDEVICE);
			kfree_skb(re->skb);
			re->skb = NULL;
		}
	}
}

/* Basic MII support */
static int sky2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
	struct mii_ioctl_data *data = if_mii(ifr);
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	int err = -EOPNOTSUPP;

	if (!netif_running(dev))
		return -ENODEV;	/* Phy still in reset */

	switch(cmd) {
	case SIOCGMIIPHY:
		data->phy_id = PHY_ADDR_MARV;

		/* fallthru */
	case SIOCGMIIREG: {
		u16 val = 0;

		down(&sky2->phy_sema);
		err = __gm_phy_read(hw, sky2->port, data->reg_num & 0x1f, &val);
		up(&sky2->phy_sema);

		data->val_out = val;
		break;
	}

	case SIOCSMIIREG:
		if (!capable(CAP_NET_ADMIN))
			return -EPERM;

		down(&sky2->phy_sema);
		err = gm_phy_write(hw, sky2->port, data->reg_num & 0x1f,
				   data->val_in);
		up(&sky2->phy_sema);
		break;
	}
	return err;
}

#ifdef SKY2_VLAN_TAG_USED
static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	u16 port = sky2->port;

	spin_lock_bh(&sky2->tx_lock);

	sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_ON);
	sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_ON);
	sky2->vlgrp = grp;

	spin_unlock_bh(&sky2->tx_lock);
}

static void sky2_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	u16 port = sky2->port;

	spin_lock_bh(&sky2->tx_lock);

	sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), RX_VLAN_STRIP_OFF);
	sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T), TX_VLAN_TAG_OFF);
	if (sky2->vlgrp)
		sky2->vlgrp->vlan_devices[vid] = NULL;

	spin_unlock_bh(&sky2->tx_lock);
}
#endif

/*
 * It appears the hardware has a bug in the FIFO logic that
 * cause it to hang if the FIFO gets overrun and the receive buffer
 * is not aligned. ALso alloc_skb() won't align properly if slab
 * debugging is enabled.
 */
static inline struct sk_buff *sky2_alloc_skb(unsigned int size, gfp_t gfp_mask)
{
	struct sk_buff *skb;

	skb = alloc_skb(size + RX_SKB_ALIGN, gfp_mask);
	if (likely(skb)) {
		unsigned long p	= (unsigned long) skb->data;
		skb_reserve(skb,
			((p + RX_SKB_ALIGN - 1) & ~(RX_SKB_ALIGN - 1)) - p);
	}

	return skb;
}

/*
 * Allocate and setup receiver buffer pool.
 * In case of 64 bit dma, there are 2X as many list elements
 * available as ring entries
 * and need to reserve one list element so we don't wrap around.
 */
static int sky2_rx_start(struct sky2_port *sky2)
{
	struct sky2_hw *hw = sky2->hw;
	unsigned rxq = rxqaddr[sky2->port];
	int i;

	sky2->rx_put = sky2->rx_next = 0;
	sky2_qset(hw, rxq);
	sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);

	rx_set_checksum(sky2);
	for (i = 0; i < sky2->rx_pending; i++) {
		struct ring_info *re = sky2->rx_ring + i;

		re->skb = sky2_alloc_skb(sky2->rx_bufsize, GFP_KERNEL);
		if (!re->skb)
			goto nomem;

		re->mapaddr = pci_map_single(hw->pdev, re->skb->data,
					     sky2->rx_bufsize, PCI_DMA_FROMDEVICE);
		sky2_rx_add(sky2, re->mapaddr);
	}

	/* Tell chip about available buffers */
	sky2_write16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX), sky2->rx_put);
	sky2->rx_last_put = sky2_read16(hw, Y2_QADDR(rxq, PREF_UNIT_PUT_IDX));
	return 0;
nomem:
	sky2_rx_clean(sky2);
	return -ENOMEM;
}

/* Bring up network interface. */
static int sky2_up(struct net_device *dev)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	unsigned port = sky2->port;
	u32 ramsize, rxspace;
	int err = -ENOMEM;

	if (netif_msg_ifup(sky2))
		printk(KERN_INFO PFX "%s: enabling interface\n", dev->name);

	/* must be power of 2 */
	sky2->tx_le = pci_alloc_consistent(hw->pdev,
					   TX_RING_SIZE *
					   sizeof(struct sky2_tx_le),
					   &sky2->tx_le_map);
	if (!sky2->tx_le)
		goto err_out;

	sky2->tx_ring = kcalloc(TX_RING_SIZE, sizeof(struct tx_ring_info),
				GFP_KERNEL);
	if (!sky2->tx_ring)
		goto err_out;
	sky2->tx_prod = sky2->tx_cons = 0;

	sky2->rx_le = pci_alloc_consistent(hw->pdev, RX_LE_BYTES,
					   &sky2->rx_le_map);
	if (!sky2->rx_le)
		goto err_out;
	memset(sky2->rx_le, 0, RX_LE_BYTES);

	sky2->rx_ring = kcalloc(sky2->rx_pending, sizeof(struct ring_info),
				GFP_KERNEL);
	if (!sky2->rx_ring)
		goto err_out;

	sky2_mac_init(hw, port);

	/* Determine available ram buffer space (in 4K blocks).
	 * Note: not sure about the FE setting below yet
	 */
	if (hw->chip_id == CHIP_ID_YUKON_FE)
		ramsize = 4;
	else
		ramsize = sky2_read8(hw, B2_E_0);

	/* Give transmitter one third (rounded up) */
	rxspace = ramsize - (ramsize + 2) / 3;

	sky2_ramset(hw, rxqaddr[port], 0, rxspace);
	sky2_ramset(hw, txqaddr[port], rxspace, ramsize);

	/* Make sure SyncQ is disabled */
	sky2_write8(hw, RB_ADDR(port == 0 ? Q_XS1 : Q_XS2, RB_CTRL),
		    RB_RST_SET);

	sky2_qset(hw, txqaddr[port]);
	if (hw->chip_id == CHIP_ID_YUKON_EC_U)
		sky2_write16(hw, Q_ADDR(txqaddr[port], Q_AL), 0x1a0);


	sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
			   TX_RING_SIZE - 1);

	err = sky2_rx_start(sky2);
	if (err)
		goto err_out;

	/* Enable interrupts from phy/mac for port */
	hw->intr_mask |= (port == 0) ? Y2_IS_PORT_1 : Y2_IS_PORT_2;
	sky2_write32(hw, B0_IMSK, hw->intr_mask);
	return 0;

err_out:
	if (sky2->rx_le) {
		pci_free_consistent(hw->pdev, RX_LE_BYTES,
				    sky2->rx_le, sky2->rx_le_map);
		sky2->rx_le = NULL;
	}
	if (sky2->tx_le) {
		pci_free_consistent(hw->pdev,
				    TX_RING_SIZE * sizeof(struct sky2_tx_le),
				    sky2->tx_le, sky2->tx_le_map);
		sky2->tx_le = NULL;
	}
	kfree(sky2->tx_ring);
	kfree(sky2->rx_ring);

	sky2->tx_ring = NULL;
	sky2->rx_ring = NULL;
	return err;
}

/* Modular subtraction in ring */
static inline int tx_dist(unsigned tail, unsigned head)
{
	return (head - tail) % TX_RING_SIZE;
}

/* Number of list elements available for next tx */
static inline int tx_avail(const struct sky2_port *sky2)
{
	return sky2->tx_pending - tx_dist(sky2->tx_cons, sky2->tx_prod);
}

/* Estimate of number of transmit list elements required */
static unsigned tx_le_req(const struct sk_buff *skb)
{
	unsigned count;

	count = sizeof(dma_addr_t) / sizeof(u32);
	count += skb_shinfo(skb)->nr_frags * count;

	if (skb_shinfo(skb)->tso_size)
		++count;

	if (skb->ip_summed == CHECKSUM_HW)
		++count;

	return count;
}

/*
 * Put one packet in ring for transmit.
 * A single packet can generate multiple list elements, and
 * the number of ring elements will probably be less than the number
 * of list elements used.
 *
 * No BH disabling for tx_lock here (like tg3)
 */
static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	struct sky2_tx_le *le = NULL;
	struct tx_ring_info *re;
	unsigned i, len;
	dma_addr_t mapping;
	u32 addr64;
	u16 mss;
	u8 ctrl;

	/* No BH disabling for tx_lock here.  We are running in BH disabled
	 * context and TX reclaim runs via poll inside of a software
	 * interrupt, and no related locks in IRQ processing.
	 */
	if (!spin_trylock(&sky2->tx_lock))
		return NETDEV_TX_LOCKED;

	if (unlikely(tx_avail(sky2) < tx_le_req(skb))) {
		/* There is a known but harmless race with lockless tx
		 * and netif_stop_queue.
		 */
		if (!netif_queue_stopped(dev)) {
			netif_stop_queue(dev);
			if (net_ratelimit())
				printk(KERN_WARNING PFX "%s: ring full when queue awake!\n",
				       dev->name);
		}
		spin_unlock(&sky2->tx_lock);

		return NETDEV_TX_BUSY;
	}

	if (unlikely(netif_msg_tx_queued(sky2)))
		printk(KERN_DEBUG "%s: tx queued, slot %u, len %d\n",
		       dev->name, sky2->tx_prod, skb->len);

	len = skb_headlen(skb);
	mapping = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
	addr64 = high32(mapping);

	re = sky2->tx_ring + sky2->tx_prod;

	/* Send high bits if changed or crosses boundary */
	if (addr64 != sky2->tx_addr64 || high32(mapping + len) != sky2->tx_addr64) {
		le = get_tx_le(sky2);
		le->tx.addr = cpu_to_le32(addr64);
		le->ctrl = 0;
		le->opcode = OP_ADDR64 | HW_OWNER;
		sky2->tx_addr64 = high32(mapping + len);
	}

	/* Check for TCP Segmentation Offload */
	mss = skb_shinfo(skb)->tso_size;
	if (mss != 0) {
		/* just drop the packet if non-linear expansion fails */
		if (skb_header_cloned(skb) &&
		    pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
			dev_kfree_skb_any(skb);
			goto out_unlock;
		}

		mss += ((skb->h.th->doff - 5) * 4);	/* TCP options */
		mss += (skb->nh.iph->ihl * 4) + sizeof(struct tcphdr);
		mss += ETH_HLEN;
	}

	if (mss != sky2->tx_last_mss) {
		le = get_tx_le(sky2);
		le->tx.tso.size = cpu_to_le16(mss);
		le->tx.tso.rsvd = 0;
		le->opcode = OP_LRGLEN | HW_OWNER;
		le->ctrl = 0;
		sky2->tx_last_mss = mss;
	}

	ctrl = 0;
#ifdef SKY2_VLAN_TAG_USED
	/* Add VLAN tag, can piggyback on LRGLEN or ADDR64 */
	if (sky2->vlgrp && vlan_tx_tag_present(skb)) {
		if (!le) {
			le = get_tx_le(sky2);
			le->tx.addr = 0;
			le->opcode = OP_VLAN|HW_OWNER;
			le->ctrl = 0;
		} else
			le->opcode |= OP_VLAN;
		le->length = cpu_to_be16(vlan_tx_tag_get(skb));
		ctrl |= INS_VLAN;
	}
#endif

	/* Handle TCP checksum offload */
	if (skb->ip_summed == CHECKSUM_HW) {
		u16 hdr = skb->h.raw - skb->data;
		u16 offset = hdr + skb->csum;

		ctrl = CALSUM | WR_SUM | INIT_SUM | LOCK_SUM;
		if (skb->nh.iph->protocol == IPPROTO_UDP)
			ctrl |= UDPTCP;

		le = get_tx_le(sky2);
		le->tx.csum.start = cpu_to_le16(hdr);
		le->tx.csum.offset = cpu_to_le16(offset);
		le->length = 0;	/* initial checksum value */
		le->ctrl = 1;	/* one packet */
		le->opcode = OP_TCPLISW | HW_OWNER;
	}

	le = get_tx_le(sky2);
	le->tx.addr = cpu_to_le32((u32) mapping);
	le->length = cpu_to_le16(len);
	le->ctrl = ctrl;
	le->opcode = mss ? (OP_LARGESEND | HW_OWNER) : (OP_PACKET | HW_OWNER);

	/* Record the transmit mapping info */
	re->skb = skb;
	pci_unmap_addr_set(re, mapaddr, mapping);

	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
		skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
		struct tx_ring_info *fre;

		mapping = pci_map_page(hw->pdev, frag->page, frag->page_offset,
				       frag->size, PCI_DMA_TODEVICE);
		addr64 = high32(mapping);
		if (addr64 != sky2->tx_addr64) {
			le = get_tx_le(sky2);
			le->tx.addr = cpu_to_le32(addr64);
			le->ctrl = 0;
			le->opcode = OP_ADDR64 | HW_OWNER;
			sky2->tx_addr64 = addr64;
		}

		le = get_tx_le(sky2);
		le->tx.addr = cpu_to_le32((u32) mapping);
		le->length = cpu_to_le16(frag->size);
		le->ctrl = ctrl;
		le->opcode = OP_BUFFER | HW_OWNER;

		fre = sky2->tx_ring
		    + ((re - sky2->tx_ring) + i + 1) % TX_RING_SIZE;
		pci_unmap_addr_set(fre, mapaddr, mapping);
	}

	re->idx = sky2->tx_prod;
	le->ctrl |= EOP;

	sky2_put_idx(hw, txqaddr[sky2->port], sky2->tx_prod,
		     &sky2->tx_last_put, TX_RING_SIZE);

	if (tx_avail(sky2) <= MAX_SKB_TX_LE)
		netif_stop_queue(dev);

out_unlock:
	spin_unlock(&sky2->tx_lock);

	dev->trans_start = jiffies;
	return NETDEV_TX_OK;
}

/*
 * Free ring elements from starting at tx_cons until "done"
 *
 * NB: the hardware will tell us about partial completion of multi-part
 *     buffers; these are deferred until completion.
 */
static void sky2_tx_complete(struct sky2_port *sky2, u16 done)
{
	struct net_device *dev = sky2->netdev;
	struct pci_dev *pdev = sky2->hw->pdev;
	u16 nxt, put;
	unsigned i;

	BUG_ON(done >= TX_RING_SIZE);

	if (unlikely(netif_msg_tx_done(sky2)))
		printk(KERN_DEBUG "%s: tx done, up to %u\n",
		       dev->name, done);

	for (put = sky2->tx_cons; put != done; put = nxt) {
		struct tx_ring_info *re = sky2->tx_ring + put;
		struct sk_buff *skb = re->skb;

  		nxt = re->idx;
		BUG_ON(nxt >= TX_RING_SIZE);
		prefetch(sky2->tx_ring + nxt);

		/* Check for partial status */
		if (tx_dist(put, done) < tx_dist(put, nxt))
			break;

		skb = re->skb;
		pci_unmap_single(pdev, pci_unmap_addr(re, mapaddr),
				 skb_headlen(skb), PCI_DMA_TODEVICE);

		for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
			struct tx_ring_info *fre;
			fre = sky2->tx_ring + (put + i + 1) % TX_RING_SIZE;
			pci_unmap_page(pdev, pci_unmap_addr(fre, mapaddr),
  				       skb_shinfo(skb)->frags[i].size,
				       PCI_DMA_TODEVICE);
		}

		dev_kfree_skb_any(skb);
	}

	sky2->tx_cons = put;
	if (netif_queue_stopped(dev) && tx_avail(sky2) > MAX_SKB_TX_LE)
		netif_wake_queue(dev);
}

/* Cleanup all untransmitted buffers, assume transmitter not running */
static void sky2_tx_clean(struct sky2_port *sky2)
{
	spin_lock_bh(&sky2->tx_lock);
	sky2_tx_complete(sky2, sky2->tx_prod);
	spin_unlock_bh(&sky2->tx_lock);
}

/* Network shutdown */
static int sky2_down(struct net_device *dev)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	unsigned port = sky2->port;
	u16 ctrl;

	/* Never really got started! */
	if (!sky2->tx_le)
		return 0;

	if (netif_msg_ifdown(sky2))
		printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);

	/* Stop more packets from being queued */
	netif_stop_queue(dev);

	/* Disable port IRQ */
	local_irq_disable();
	hw->intr_mask &= ~((sky2->port == 0) ? Y2_IS_IRQ_PHY1 : Y2_IS_IRQ_PHY2);
	sky2_write32(hw, B0_IMSK, hw->intr_mask);
	local_irq_enable();

	flush_scheduled_work();

	sky2_phy_reset(hw, port);

	/* Stop transmitter */
	sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_STOP);
	sky2_read32(hw, Q_ADDR(txqaddr[port], Q_CSR));

	sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL),
		     RB_RST_SET | RB_DIS_OP_MD);

	ctrl = gma_read16(hw, port, GM_GP_CTRL);
	ctrl &= ~(GM_GPCR_TX_ENA | GM_GPCR_RX_ENA);
	gma_write16(hw, port, GM_GP_CTRL, ctrl);

	sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);

	/* Workaround shared GMAC reset */
	if (!(hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0
	      && port == 0 && hw->dev[1] && netif_running(hw->dev[1])))
		sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_SET);

	/* Disable Force Sync bit and Enable Alloc bit */
	sky2_write8(hw, SK_REG(port, TXA_CTRL),
		    TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC);

	/* Stop Interval Timer and Limit Counter of Tx Arbiter */
	sky2_write32(hw, SK_REG(port, TXA_ITI_INI), 0L);
	sky2_write32(hw, SK_REG(port, TXA_LIM_INI), 0L);

	/* Reset the PCI FIFO of the async Tx queue */
	sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR),
		     BMU_RST_SET | BMU_FIFO_RST);

	/* Reset the Tx prefetch units */
	sky2_write32(hw, Y2_QADDR(txqaddr[port], PREF_UNIT_CTRL),
		     PREF_UNIT_RST_SET);

	sky2_write32(hw, RB_ADDR(txqaddr[port], RB_CTRL), RB_RST_SET);

	sky2_rx_stop(sky2);

	sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
	sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_SET);

	/* turn off LED's */
	sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);

	synchronize_irq(hw->pdev->irq);

	sky2_tx_clean(sky2);
	sky2_rx_clean(sky2);

	pci_free_consistent(hw->pdev, RX_LE_BYTES,
			    sky2->rx_le, sky2->rx_le_map);
	kfree(sky2->rx_ring);

	pci_free_consistent(hw->pdev,
			    TX_RING_SIZE * sizeof(struct sky2_tx_le),
			    sky2->tx_le, sky2->tx_le_map);
	kfree(sky2->tx_ring);

	sky2->tx_le = NULL;
	sky2->rx_le = NULL;

	sky2->rx_ring = NULL;
	sky2->tx_ring = NULL;

	return 0;
}

static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
{
	if (!hw->copper)
		return SPEED_1000;

	if (hw->chip_id == CHIP_ID_YUKON_FE)
		return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10;

	switch (aux & PHY_M_PS_SPEED_MSK) {
	case PHY_M_PS_SPEED_1000:
		return SPEED_1000;
	case PHY_M_PS_SPEED_100:
		return SPEED_100;
	default:
		return SPEED_10;
	}
}

static void sky2_link_up(struct sky2_port *sky2)
{
	struct sky2_hw *hw = sky2->hw;
	unsigned port = sky2->port;
	u16 reg;

	/* Enable Transmit FIFO Underrun */
	sky2_write8(hw, SK_REG(port, GMAC_IRQ_MSK), GMAC_DEF_MSK);

	reg = gma_read16(hw, port, GM_GP_CTRL);
	if (sky2->duplex == DUPLEX_FULL || sky2->autoneg == AUTONEG_ENABLE)
		reg |= GM_GPCR_DUP_FULL;

	/* enable Rx/Tx */
	reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
	gma_write16(hw, port, GM_GP_CTRL, reg);
	gma_read16(hw, port, GM_GP_CTRL);

	gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);

	netif_carrier_on(sky2->netdev);
	netif_wake_queue(sky2->netdev);

	/* Turn on link LED */
	sky2_write8(hw, SK_REG(port, LNK_LED_REG),
		    LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);

	if (hw->chip_id == CHIP_ID_YUKON_XL) {
		u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);

		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
		gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, PHY_M_LEDC_LOS_CTRL(1) |	/* LINK/ACT */
			     PHY_M_LEDC_INIT_CTRL(sky2->speed ==
						  SPEED_10 ? 7 : 0) |
			     PHY_M_LEDC_STA1_CTRL(sky2->speed ==
						  SPEED_100 ? 7 : 0) |
			     PHY_M_LEDC_STA0_CTRL(sky2->speed ==
						  SPEED_1000 ? 7 : 0));
		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
	}

	if (netif_msg_link(sky2))
		printk(KERN_INFO PFX
		       "%s: Link is up at %d Mbps, %s duplex, flow control %s\n",
		       sky2->netdev->name, sky2->speed,
		       sky2->duplex == DUPLEX_FULL ? "full" : "half",
		       (sky2->tx_pause && sky2->rx_pause) ? "both" :
		       sky2->tx_pause ? "tx" : sky2->rx_pause ? "rx" : "none");
}

static void sky2_link_down(struct sky2_port *sky2)
{
	struct sky2_hw *hw = sky2->hw;
	unsigned port = sky2->port;
	u16 reg;

	gm_phy_write(hw, port, PHY_MARV_INT_MASK, 0);

	reg = gma_read16(hw, port, GM_GP_CTRL);
	reg &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA);
	gma_write16(hw, port, GM_GP_CTRL, reg);
	gma_read16(hw, port, GM_GP_CTRL);	/* PCI post */

	if (sky2->rx_pause && !sky2->tx_pause) {
		/* restore Asymmetric Pause bit */
		gm_phy_write(hw, port, PHY_MARV_AUNE_ADV,
			     gm_phy_read(hw, port, PHY_MARV_AUNE_ADV)
			     | PHY_M_AN_ASP);
	}

	netif_carrier_off(sky2->netdev);
	netif_stop_queue(sky2->netdev);

	/* Turn on link LED */
	sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);

	if (netif_msg_link(sky2))
		printk(KERN_INFO PFX "%s: Link is down.\n", sky2->netdev->name);
	sky2_phy_init(hw, port);
}

static int sky2_autoneg_done(struct sky2_port *sky2, u16 aux)
{
	struct sky2_hw *hw = sky2->hw;
	unsigned port = sky2->port;
	u16 lpa;

	lpa = gm_phy_read(hw, port, PHY_MARV_AUNE_LP);

	if (lpa & PHY_M_AN_RF) {
		printk(KERN_ERR PFX "%s: remote fault", sky2->netdev->name);
		return -1;
	}

	if (hw->chip_id != CHIP_ID_YUKON_FE &&
	    gm_phy_read(hw, port, PHY_MARV_1000T_STAT) & PHY_B_1000S_MSF) {
		printk(KERN_ERR PFX "%s: master/slave fault",
		       sky2->netdev->name);
		return -1;
	}

	if (!(aux & PHY_M_PS_SPDUP_RES)) {
		printk(KERN_ERR PFX "%s: speed/duplex mismatch",
		       sky2->netdev->name);
		return -1;
	}

	sky2->duplex = (aux & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;

	sky2->speed = sky2_phy_speed(hw, aux);

	/* Pause bits are offset (9..8) */
	if (hw->chip_id == CHIP_ID_YUKON_XL)
		aux >>= 6;

	sky2->rx_pause = (aux & PHY_M_PS_RX_P_EN) != 0;
	sky2->tx_pause = (aux & PHY_M_PS_TX_P_EN) != 0;

	if ((sky2->tx_pause || sky2->rx_pause)
	    && !(sky2->speed < SPEED_1000 && sky2->duplex == DUPLEX_HALF))
		sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_ON);
	else
		sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_PAUSE_OFF);

	return 0;
}

/*
 * Interrupt from PHY are handled outside of interrupt context
 * because accessing phy registers requires spin wait which might
 * cause excess interrupt latency.
 */
static void sky2_phy_task(void *arg)
{
	struct sky2_port *sky2 = arg;
	struct sky2_hw *hw = sky2->hw;
	u16 istatus, phystat;

	down(&sky2->phy_sema);
	istatus = gm_phy_read(hw, sky2->port, PHY_MARV_INT_STAT);
	phystat = gm_phy_read(hw, sky2->port, PHY_MARV_PHY_STAT);

	if (netif_msg_intr(sky2))
		printk(KERN_INFO PFX "%s: phy interrupt status 0x%x 0x%x\n",
		       sky2->netdev->name, istatus, phystat);

	if (istatus & PHY_M_IS_AN_COMPL) {
		if (sky2_autoneg_done(sky2, phystat) == 0)
			sky2_link_up(sky2);
		goto out;
	}

	if (istatus & PHY_M_IS_LSP_CHANGE)
		sky2->speed = sky2_phy_speed(hw, phystat);

	if (istatus & PHY_M_IS_DUP_CHANGE)
		sky2->duplex =
		    (phystat & PHY_M_PS_FULL_DUP) ? DUPLEX_FULL : DUPLEX_HALF;

	if (istatus & PHY_M_IS_LST_CHANGE) {
		if (phystat & PHY_M_PS_LINK_UP)
			sky2_link_up(sky2);
		else
			sky2_link_down(sky2);
	}
out:
	up(&sky2->phy_sema);

	local_irq_disable();
	hw->intr_mask |= (sky2->port == 0) ? Y2_IS_IRQ_PHY1 : Y2_IS_IRQ_PHY2;
	sky2_write32(hw, B0_IMSK, hw->intr_mask);
	local_irq_enable();
}


/* Transmit timeout is only called if we are running, carries is up
 * and tx queue is full (stopped).
 */
static void sky2_tx_timeout(struct net_device *dev)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	unsigned txq = txqaddr[sky2->port];
	u16 ridx;

	/* Maybe we just missed an status interrupt */
	spin_lock(&sky2->tx_lock);
	ridx = sky2_read16(hw,
			   sky2->port == 0 ? STAT_TXA1_RIDX : STAT_TXA2_RIDX);
	sky2_tx_complete(sky2, ridx);
	spin_unlock(&sky2->tx_lock);

	if (!netif_queue_stopped(dev)) {
		if (net_ratelimit())
			pr_info(PFX "transmit interrupt missed? recovered\n");
		return;
	}

	if (netif_msg_timer(sky2))
		printk(KERN_ERR PFX "%s: tx timeout\n", dev->name);

	sky2_write32(hw, Q_ADDR(txq, Q_CSR), BMU_STOP);
	sky2_write32(hw, Y2_QADDR(txq, PREF_UNIT_CTRL), PREF_UNIT_RST_SET);

	sky2_tx_clean(sky2);

	sky2_qset(hw, txq);
	sky2_prefetch_init(hw, txq, sky2->tx_le_map, TX_RING_SIZE - 1);
}


#define roundup(x, y)   ((((x)+((y)-1))/(y))*(y))
/* Want receive buffer size to be multiple of 64 bits, and incl room for vlan */
static inline unsigned sky2_buf_size(int mtu)
{
	return roundup(mtu + ETH_HLEN + 4, 8);
}

static int sky2_change_mtu(struct net_device *dev, int new_mtu)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	int err;
	u16 ctl, mode;

	if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
		return -EINVAL;

	if (hw->chip_id == CHIP_ID_YUKON_EC_U && new_mtu > ETH_DATA_LEN)
		return -EINVAL;

	if (!netif_running(dev)) {
		dev->mtu = new_mtu;
		return 0;
	}

	sky2_write32(hw, B0_IMSK, 0);

	dev->trans_start = jiffies;	/* prevent tx timeout */
	netif_stop_queue(dev);
	netif_poll_disable(hw->dev[0]);

	ctl = gma_read16(hw, sky2->port, GM_GP_CTRL);
	gma_write16(hw, sky2->port, GM_GP_CTRL, ctl & ~GM_GPCR_RX_ENA);
	sky2_rx_stop(sky2);
	sky2_rx_clean(sky2);

	dev->mtu = new_mtu;
	sky2->rx_bufsize = sky2_buf_size(new_mtu);
	mode = DATA_BLIND_VAL(DATA_BLIND_DEF) |
		GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF);

	if (dev->mtu > ETH_DATA_LEN)
		mode |= GM_SMOD_JUMBO_ENA;

	gma_write16(hw, sky2->port, GM_SERIAL_MODE, mode);

	sky2_write8(hw, RB_ADDR(rxqaddr[sky2->port], RB_CTRL), RB_ENA_OP_MD);

	err = sky2_rx_start(sky2);
	sky2_write32(hw, B0_IMSK, hw->intr_mask);

	if (err)
		dev_close(dev);
	else {
		gma_write16(hw, sky2->port, GM_GP_CTRL, ctl);

		netif_poll_enable(hw->dev[0]);
		netif_wake_queue(dev);
	}

	return err;
}

/*
 * Receive one packet.
 * For small packets or errors, just reuse existing skb.
 * For larger packets, get new buffer.
 */
static struct sk_buff *sky2_receive(struct sky2_port *sky2,
				    u16 length, u32 status)
{
	struct ring_info *re = sky2->rx_ring + sky2->rx_next;
	struct sk_buff *skb = NULL;

	if (unlikely(netif_msg_rx_status(sky2)))
		printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n",
		       sky2->netdev->name, sky2->rx_next, status, length);

	sky2->rx_next = (sky2->rx_next + 1) % sky2->rx_pending;
	prefetch(sky2->rx_ring + sky2->rx_next);

	if (status & GMR_FS_ANY_ERR)
		goto error;

	if (!(status & GMR_FS_RX_OK))
		goto resubmit;

	if ((status >> 16) != length || length > sky2->rx_bufsize)
		goto oversize;

	if (length < copybreak) {
		skb = alloc_skb(length + 2, GFP_ATOMIC);
		if (!skb)
			goto resubmit;

		skb_reserve(skb, 2);
		pci_dma_sync_single_for_cpu(sky2->hw->pdev, re->mapaddr,
					    length, PCI_DMA_FROMDEVICE);
		memcpy(skb->data, re->skb->data, length);
		skb->ip_summed = re->skb->ip_summed;
		skb->csum = re->skb->csum;
		pci_dma_sync_single_for_device(sky2->hw->pdev, re->mapaddr,
					       length, PCI_DMA_FROMDEVICE);
	} else {
		struct sk_buff *nskb;

		nskb = sky2_alloc_skb(sky2->rx_bufsize, GFP_ATOMIC);
		if (!nskb)
			goto resubmit;

		skb = re->skb;
		re->skb = nskb;
		pci_unmap_single(sky2->hw->pdev, re->mapaddr,
				 sky2->rx_bufsize, PCI_DMA_FROMDEVICE);
		prefetch(skb->data);

		re->mapaddr = pci_map_single(sky2->hw->pdev, nskb->data,
					     sky2->rx_bufsize, PCI_DMA_FROMDEVICE);
	}

	skb_put(skb, length);
resubmit:
	re->skb->ip_summed = CHECKSUM_NONE;
	sky2_rx_add(sky2, re->mapaddr);

	/* Tell receiver about new buffers. */
	sky2_put_idx(sky2->hw, rxqaddr[sky2->port], sky2->rx_put,
		     &sky2->rx_last_put, RX_LE_SIZE);

	return skb;

oversize:
	++sky2->net_stats.rx_over_errors;
	goto resubmit;

error:
	++sky2->net_stats.rx_errors;

	if (netif_msg_rx_err(sky2) && net_ratelimit())
		printk(KERN_INFO PFX "%s: rx error, status 0x%x length %d\n",
		       sky2->netdev->name, status, length);

	if (status & (GMR_FS_LONG_ERR | GMR_FS_UN_SIZE))
		sky2->net_stats.rx_length_errors++;
	if (status & GMR_FS_FRAGMENT)
		sky2->net_stats.rx_frame_errors++;
	if (status & GMR_FS_CRC_ERR)
		sky2->net_stats.rx_crc_errors++;
	if (status & GMR_FS_RX_FF_OV)
		sky2->net_stats.rx_fifo_errors++;

	goto resubmit;
}

/*
 * Check for transmit complete
 */
#define TX_NO_STATUS	0xffff

static void sky2_tx_check(struct sky2_hw *hw, int port, u16 last)
{
	if (last != TX_NO_STATUS) {
		struct net_device *dev = hw->dev[port];
		if (dev && netif_running(dev)) {
			struct sky2_port *sky2 = netdev_priv(dev);

			spin_lock(&sky2->tx_lock);
			sky2_tx_complete(sky2, last);
			spin_unlock(&sky2->tx_lock);
		}
	}
}

/*
 * Both ports share the same status interrupt, therefore there is only
 * one poll routine.
 */
static int sky2_poll(struct net_device *dev0, int *budget)
{
	struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw;
	unsigned int to_do = min(dev0->quota, *budget);
	unsigned int work_done = 0;
	u16 hwidx;
	u16 tx_done[2] = { TX_NO_STATUS, TX_NO_STATUS };

	hwidx = sky2_read16(hw, STAT_PUT_IDX);
	BUG_ON(hwidx >= STATUS_RING_SIZE);
	rmb();

	while (hwidx != hw->st_idx) {
		struct sky2_status_le *le  = hw->st_le + hw->st_idx;
		struct net_device *dev;
		struct sky2_port *sky2;
		struct sk_buff *skb;
		u32 status;
		u16 length;

		le = hw->st_le + hw->st_idx;
		hw->st_idx = (hw->st_idx + 1) % STATUS_RING_SIZE;
		prefetch(hw->st_le + hw->st_idx);

		BUG_ON(le->link >= 2);
		dev = hw->dev[le->link];
		if (dev == NULL || !netif_running(dev))
			continue;

		sky2 = netdev_priv(dev);
		status = le32_to_cpu(le->status);
		length = le16_to_cpu(le->length);

		switch (le->opcode & ~HW_OWNER) {
		case OP_RXSTAT:
			skb = sky2_receive(sky2, length, status);
			if (!skb)
				break;

			skb->dev = dev;
			skb->protocol = eth_type_trans(skb, dev);
			dev->last_rx = jiffies;

#ifdef SKY2_VLAN_TAG_USED
			if (sky2->vlgrp && (status & GMR_FS_VLAN)) {
				vlan_hwaccel_receive_skb(skb,
							 sky2->vlgrp,
							 be16_to_cpu(sky2->rx_tag));
			} else
#endif
				netif_receive_skb(skb);

			if (++work_done >= to_do)
				goto exit_loop;
			break;

#ifdef SKY2_VLAN_TAG_USED
		case OP_RXVLAN:
			sky2->rx_tag = length;
			break;

		case OP_RXCHKSVLAN:
			sky2->rx_tag = length;
			/* fall through */
#endif
		case OP_RXCHKS:
			skb = sky2->rx_ring[sky2->rx_next].skb;
			skb->ip_summed = CHECKSUM_HW;
			skb->csum = le16_to_cpu(status);
			break;

		case OP_TXINDEXLE:
			/* TX index reports status for both ports */
			tx_done[0] = status & 0xffff;
			tx_done[1] = ((status >> 24) & 0xff)
				| (u16)(length & 0xf) << 8;
			break;

		default:
			if (net_ratelimit())
				printk(KERN_WARNING PFX
				       "unknown status opcode 0x%x\n", le->opcode);
			break;
		}
	}

exit_loop:
	sky2_write32(hw, STAT_CTRL, SC_STAT_CLR_IRQ);

	sky2_tx_check(hw, 0, tx_done[0]);
	sky2_tx_check(hw, 1, tx_done[1]);

	if (sky2_read16(hw, STAT_PUT_IDX) == hw->st_idx) {
		/* need to restart TX timer */
		if (is_ec_a1(hw)) {
			sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
			sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
		}

		netif_rx_complete(dev0);
		hw->intr_mask |= Y2_IS_STAT_BMU;
		sky2_write32(hw, B0_IMSK, hw->intr_mask);
		return 0;
	} else {
		*budget -= work_done;
		dev0->quota -= work_done;
		return 1;
	}
}

static void sky2_hw_error(struct sky2_hw *hw, unsigned port, u32 status)
{
	struct net_device *dev = hw->dev[port];

	if (net_ratelimit())
		printk(KERN_INFO PFX "%s: hw error interrupt status 0x%x\n",
		       dev->name, status);

	if (status & Y2_IS_PAR_RD1) {
		if (net_ratelimit())
			printk(KERN_ERR PFX "%s: ram data read parity error\n",
			       dev->name);
		/* Clear IRQ */
		sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_RD_PERR);
	}

	if (status & Y2_IS_PAR_WR1) {
		if (net_ratelimit())
			printk(KERN_ERR PFX "%s: ram data write parity error\n",
			       dev->name);

		sky2_write16(hw, RAM_BUFFER(port, B3_RI_CTRL), RI_CLR_WR_PERR);
	}

	if (status & Y2_IS_PAR_MAC1) {
		if (net_ratelimit())
			printk(KERN_ERR PFX "%s: MAC parity error\n", dev->name);
		sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_PE);
	}

	if (status & Y2_IS_PAR_RX1) {
		if (net_ratelimit())
			printk(KERN_ERR PFX "%s: RX parity error\n", dev->name);
		sky2_write32(hw, Q_ADDR(rxqaddr[port], Q_CSR), BMU_CLR_IRQ_PAR);
	}

	if (status & Y2_IS_TCP_TXA1) {
		if (net_ratelimit())
			printk(KERN_ERR PFX "%s: TCP segmentation error\n",
			       dev->name);
		sky2_write32(hw, Q_ADDR(txqaddr[port], Q_CSR), BMU_CLR_IRQ_TCP);
	}
}

static void sky2_hw_intr(struct sky2_hw *hw)
{
	u32 status = sky2_read32(hw, B0_HWE_ISRC);

	if (status & Y2_IS_TIST_OV)
		sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);

	if (status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) {
		u16 pci_err;

		pci_read_config_word(hw->pdev, PCI_STATUS, &pci_err);
		if (net_ratelimit())
			printk(KERN_ERR PFX "%s: pci hw error (0x%x)\n",
			       pci_name(hw->pdev), pci_err);

		sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
		pci_write_config_word(hw->pdev, PCI_STATUS,
				      pci_err | PCI_STATUS_ERROR_BITS);
		sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
	}

	if (status & Y2_IS_PCI_EXP) {
		/* PCI-Express uncorrectable Error occurred */
		u32 pex_err;

		pci_read_config_dword(hw->pdev, PEX_UNC_ERR_STAT, &pex_err);

		if (net_ratelimit())
			printk(KERN_ERR PFX "%s: pci express error (0x%x)\n",
			       pci_name(hw->pdev), pex_err);

		/* clear the interrupt */
		sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
		pci_write_config_dword(hw->pdev, PEX_UNC_ERR_STAT,
				       0xffffffffUL);
		sky2_write32(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);

		if (pex_err & PEX_FATAL_ERRORS) {
			u32 hwmsk = sky2_read32(hw, B0_HWE_IMSK);
			hwmsk &= ~Y2_IS_PCI_EXP;
			sky2_write32(hw, B0_HWE_IMSK, hwmsk);
		}
	}

	if (status & Y2_HWE_L1_MASK)
		sky2_hw_error(hw, 0, status);
	status >>= 8;
	if (status & Y2_HWE_L1_MASK)
		sky2_hw_error(hw, 1, status);
}

static void sky2_mac_intr(struct sky2_hw *hw, unsigned port)
{
	struct net_device *dev = hw->dev[port];
	struct sky2_port *sky2 = netdev_priv(dev);
	u8 status = sky2_read8(hw, SK_REG(port, GMAC_IRQ_SRC));

	if (netif_msg_intr(sky2))
		printk(KERN_INFO PFX "%s: mac interrupt status 0x%x\n",
		       dev->name, status);

	if (status & GM_IS_RX_FF_OR) {
		++sky2->net_stats.rx_fifo_errors;
		sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_CLI_RX_FO);
	}

	if (status & GM_IS_TX_FF_UR) {
		++sky2->net_stats.tx_fifo_errors;
		sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_CLI_TX_FU);
	}
}

static void sky2_phy_intr(struct sky2_hw *hw, unsigned port)
{
	struct net_device *dev = hw->dev[port];
	struct sky2_port *sky2 = netdev_priv(dev);

	hw->intr_mask &= ~(port == 0 ? Y2_IS_IRQ_PHY1 : Y2_IS_IRQ_PHY2);
	sky2_write32(hw, B0_IMSK, hw->intr_mask);
	schedule_work(&sky2->phy_task);
}

static irqreturn_t sky2_intr(int irq, void *dev_id, struct pt_regs *regs)
{
	struct sky2_hw *hw = dev_id;
	struct net_device *dev0 = hw->dev[0];
	u32 status;

	status = sky2_read32(hw, B0_Y2_SP_ISRC2);
	if (status == 0 || status == ~0)
		return IRQ_NONE;

	if (status & Y2_IS_HW_ERR)
		sky2_hw_intr(hw);

	/* Do NAPI for Rx and Tx status */
	if (status & Y2_IS_STAT_BMU) {
		hw->intr_mask &= ~Y2_IS_STAT_BMU;
		sky2_write32(hw, B0_IMSK, hw->intr_mask);

		if (likely(__netif_rx_schedule_prep(dev0))) {
			prefetch(&hw->st_le[hw->st_idx]);
			__netif_rx_schedule(dev0);
		}
	}

	if (status & Y2_IS_IRQ_PHY1)
		sky2_phy_intr(hw, 0);

	if (status & Y2_IS_IRQ_PHY2)
		sky2_phy_intr(hw, 1);

	if (status & Y2_IS_IRQ_MAC1)
		sky2_mac_intr(hw, 0);

	if (status & Y2_IS_IRQ_MAC2)
		sky2_mac_intr(hw, 1);

	sky2_write32(hw, B0_Y2_SP_ICR, 2);

	sky2_read32(hw, B0_IMSK);

	return IRQ_HANDLED;
}

#ifdef CONFIG_NET_POLL_CONTROLLER
static void sky2_netpoll(struct net_device *dev)
{
	struct sky2_port *sky2 = netdev_priv(dev);

	sky2_intr(sky2->hw->pdev->irq, sky2->hw, NULL);
}
#endif

/* Chip internal frequency for clock calculations */
static inline u32 sky2_mhz(const struct sky2_hw *hw)
{
	switch (hw->chip_id) {
	case CHIP_ID_YUKON_EC:
	case CHIP_ID_YUKON_EC_U:
		return 125;	/* 125 Mhz */
	case CHIP_ID_YUKON_FE:
		return 100;	/* 100 Mhz */
	default:		/* YUKON_XL */
		return 156;	/* 156 Mhz */
	}
}

static inline u32 sky2_us2clk(const struct sky2_hw *hw, u32 us)
{
	return sky2_mhz(hw) * us;
}

static inline u32 sky2_clk2us(const struct sky2_hw *hw, u32 clk)
{
	return clk / sky2_mhz(hw);
}


static int sky2_reset(struct sky2_hw *hw)
{
	u32 ctst;
	u16 status;
	u8 t8, pmd_type;
	int i;

	ctst = sky2_read32(hw, B0_CTST);

	sky2_write8(hw, B0_CTST, CS_RST_CLR);
	hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
	if (hw->chip_id < CHIP_ID_YUKON_XL || hw->chip_id > CHIP_ID_YUKON_FE) {
		printk(KERN_ERR PFX "%s: unsupported chip type 0x%x\n",
		       pci_name(hw->pdev), hw->chip_id);
		return -EOPNOTSUPP;
	}

	/* ring for status responses */
	hw->st_le = pci_alloc_consistent(hw->pdev, STATUS_LE_BYTES,
					 &hw->st_dma);
	if (!hw->st_le)
		return -ENOMEM;

	/* disable ASF */
	if (hw->chip_id <= CHIP_ID_YUKON_EC) {
		sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET);
		sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE);
	}

	/* do a SW reset */
	sky2_write8(hw, B0_CTST, CS_RST_SET);
	sky2_write8(hw, B0_CTST, CS_RST_CLR);

	/* clear PCI errors, if any */
	pci_read_config_word(hw->pdev, PCI_STATUS, &status);
	sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON);
	pci_write_config_word(hw->pdev, PCI_STATUS,
			      status | PCI_STATUS_ERROR_BITS);

	sky2_write8(hw, B0_CTST, CS_MRST_CLR);

	/* clear any PEX errors */
	if (is_pciex(hw)) {
		u16 lstat;
		pci_write_config_dword(hw->pdev, PEX_UNC_ERR_STAT,
				       0xffffffffUL);
		pci_read_config_word(hw->pdev, PEX_LNK_STAT, &lstat);
	}

	pmd_type = sky2_read8(hw, B2_PMD_TYP);
	hw->copper = !(pmd_type == 'L' || pmd_type == 'S');

	hw->ports = 1;
	t8 = sky2_read8(hw, B2_Y2_HW_RES);
	if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
		if (!(sky2_read8(hw, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC))
			++hw->ports;
	}
	hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;

	sky2_set_power_state(hw, PCI_D0);

	for (i = 0; i < hw->ports; i++) {
		sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_SET);
		sky2_write8(hw, SK_REG(i, GMAC_LINK_CTRL), GMLC_RST_CLR);
	}

	sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);

	/* Clear I2C IRQ noise */
	sky2_write32(hw, B2_I2C_IRQ, 1);

	/* turn off hardware timer (unused) */
	sky2_write8(hw, B2_TI_CTRL, TIM_STOP);
	sky2_write8(hw, B2_TI_CTRL, TIM_CLR_IRQ);

	sky2_write8(hw, B0_Y2LED, LED_STAT_ON);

	/* Turn off descriptor polling */
	sky2_write32(hw, B28_DPT_CTRL, DPT_STOP);

	/* Turn off receive timestamp */
	sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_STOP);
	sky2_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);

	/* enable the Tx Arbiters */
	for (i = 0; i < hw->ports; i++)
		sky2_write8(hw, SK_REG(i, TXA_CTRL), TXA_ENA_ARB);

	/* Initialize ram interface */
	for (i = 0; i < hw->ports; i++) {
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_CTRL), RI_RST_CLR);

		sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R1), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA1), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS1), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R1), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA1), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS1), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_R2), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XA2), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_WTO_XS2), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_R2), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XA2), SK_RI_TO_53);
		sky2_write8(hw, RAM_BUFFER(i, B3_RI_RTO_XS2), SK_RI_TO_53);
	}

	sky2_write32(hw, B0_HWE_IMSK, Y2_HWE_ALL_MASK);

	for (i = 0; i < hw->ports; i++)
		sky2_phy_reset(hw, i);

	memset(hw->st_le, 0, STATUS_LE_BYTES);
	hw->st_idx = 0;

	sky2_write32(hw, STAT_CTRL, SC_STAT_RST_SET);
	sky2_write32(hw, STAT_CTRL, SC_STAT_RST_CLR);

	sky2_write32(hw, STAT_LIST_ADDR_LO, hw->st_dma);
	sky2_write32(hw, STAT_LIST_ADDR_HI, (u64) hw->st_dma >> 32);

	/* Set the list last index */
	sky2_write16(hw, STAT_LAST_IDX, STATUS_RING_SIZE - 1);

	/* These status setup values are copied from SysKonnect's driver */
	if (is_ec_a1(hw)) {
		/* WA for dev. #4.3 */
		sky2_write16(hw, STAT_TX_IDX_TH, 0xfff);	/* Tx Threshold */

		/* set Status-FIFO watermark */
		sky2_write8(hw, STAT_FIFO_WM, 0x21);	/* WA for dev. #4.18 */

		/* set Status-FIFO ISR watermark */
		sky2_write8(hw, STAT_FIFO_ISR_WM, 0x07);	/* WA for dev. #4.18 */
		sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 10000));
	} else {
		sky2_write16(hw, STAT_TX_IDX_TH, 10);
		sky2_write8(hw, STAT_FIFO_WM, 16);

		/* set Status-FIFO ISR watermark */
		if (hw->chip_id == CHIP_ID_YUKON_XL && hw->chip_rev == 0)
			sky2_write8(hw, STAT_FIFO_ISR_WM, 4);
		else
			sky2_write8(hw, STAT_FIFO_ISR_WM, 16);

		sky2_write32(hw, STAT_TX_TIMER_INI, sky2_us2clk(hw, 1000));
		sky2_write32(hw, STAT_LEV_TIMER_INI, sky2_us2clk(hw, 100));
		sky2_write32(hw, STAT_ISR_TIMER_INI, sky2_us2clk(hw, 20));
	}

	/* enable status unit */
	sky2_write32(hw, STAT_CTRL, SC_STAT_OP_ON);

	sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
	sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
	sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);

	return 0;
}

static u32 sky2_supported_modes(const struct sky2_hw *hw)
{
	u32 modes;
	if (hw->copper) {
		modes = SUPPORTED_10baseT_Half
		    | SUPPORTED_10baseT_Full
		    | SUPPORTED_100baseT_Half
		    | SUPPORTED_100baseT_Full
		    | SUPPORTED_Autoneg | SUPPORTED_TP;

		if (hw->chip_id != CHIP_ID_YUKON_FE)
			modes |= SUPPORTED_1000baseT_Half
			    | SUPPORTED_1000baseT_Full;
	} else
		modes = SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE
		    | SUPPORTED_Autoneg;
	return modes;
}

static int sky2_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;

	ecmd->transceiver = XCVR_INTERNAL;
	ecmd->supported = sky2_supported_modes(hw);
	ecmd->phy_address = PHY_ADDR_MARV;
	if (hw->copper) {
		ecmd->supported = SUPPORTED_10baseT_Half
		    | SUPPORTED_10baseT_Full
		    | SUPPORTED_100baseT_Half
		    | SUPPORTED_100baseT_Full
		    | SUPPORTED_1000baseT_Half
		    | SUPPORTED_1000baseT_Full
		    | SUPPORTED_Autoneg | SUPPORTED_TP;
		ecmd->port = PORT_TP;
	} else
		ecmd->port = PORT_FIBRE;

	ecmd->advertising = sky2->advertising;
	ecmd->autoneg = sky2->autoneg;
	ecmd->speed = sky2->speed;
	ecmd->duplex = sky2->duplex;
	return 0;
}

static int sky2_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	const struct sky2_hw *hw = sky2->hw;
	u32 supported = sky2_supported_modes(hw);

	if (ecmd->autoneg == AUTONEG_ENABLE) {
		ecmd->advertising = supported;
		sky2->duplex = -1;
		sky2->speed = -1;
	} else {
		u32 setting;

		switch (ecmd->speed) {
		case SPEED_1000:
			if (ecmd->duplex == DUPLEX_FULL)
				setting = SUPPORTED_1000baseT_Full;
			else if (ecmd->duplex == DUPLEX_HALF)
				setting = SUPPORTED_1000baseT_Half;
			else
				return -EINVAL;
			break;
		case SPEED_100:
			if (ecmd->duplex == DUPLEX_FULL)
				setting = SUPPORTED_100baseT_Full;
			else if (ecmd->duplex == DUPLEX_HALF)
				setting = SUPPORTED_100baseT_Half;
			else
				return -EINVAL;
			break;

		case SPEED_10:
			if (ecmd->duplex == DUPLEX_FULL)
				setting = SUPPORTED_10baseT_Full;
			else if (ecmd->duplex == DUPLEX_HALF)
				setting = SUPPORTED_10baseT_Half;
			else
				return -EINVAL;
			break;
		default:
			return -EINVAL;
		}

		if ((setting & supported) == 0)
			return -EINVAL;

		sky2->speed = ecmd->speed;
		sky2->duplex = ecmd->duplex;
	}

	sky2->autoneg = ecmd->autoneg;
	sky2->advertising = ecmd->advertising;

	if (netif_running(dev))
		sky2_phy_reinit(sky2);

	return 0;
}

static void sky2_get_drvinfo(struct net_device *dev,
			     struct ethtool_drvinfo *info)
{
	struct sky2_port *sky2 = netdev_priv(dev);

	strcpy(info->driver, DRV_NAME);
	strcpy(info->version, DRV_VERSION);
	strcpy(info->fw_version, "N/A");
	strcpy(info->bus_info, pci_name(sky2->hw->pdev));
}

static const struct sky2_stat {
	char name[ETH_GSTRING_LEN];
	u16 offset;
} sky2_stats[] = {
	{ "tx_bytes",	   GM_TXO_OK_HI },
	{ "rx_bytes",	   GM_RXO_OK_HI },
	{ "tx_broadcast",  GM_TXF_BC_OK },
	{ "rx_broadcast",  GM_RXF_BC_OK },
	{ "tx_multicast",  GM_TXF_MC_OK },
	{ "rx_multicast",  GM_RXF_MC_OK },
	{ "tx_unicast",    GM_TXF_UC_OK },
	{ "rx_unicast",    GM_RXF_UC_OK },
	{ "tx_mac_pause",  GM_TXF_MPAUSE },
	{ "rx_mac_pause",  GM_RXF_MPAUSE },
	{ "collisions",    GM_TXF_SNG_COL },
	{ "late_collision",GM_TXF_LAT_COL },
	{ "aborted", 	   GM_TXF_ABO_COL },
	{ "multi_collisions", GM_TXF_MUL_COL },
	{ "fifo_underrun", GM_TXE_FIFO_UR },
	{ "fifo_overflow", GM_RXE_FIFO_OV },
	{ "rx_toolong",    GM_RXF_LNG_ERR },
	{ "rx_jabber",     GM_RXF_JAB_PKT },
	{ "rx_runt", 	   GM_RXE_FRAG },
	{ "rx_too_long",   GM_RXF_LNG_ERR },
	{ "rx_fcs_error",   GM_RXF_FCS_ERR },
};

static u32 sky2_get_rx_csum(struct net_device *dev)
{
	struct sky2_port *sky2 = netdev_priv(dev);

	return sky2->rx_csum;
}

static int sky2_set_rx_csum(struct net_device *dev, u32 data)
{
	struct sky2_port *sky2 = netdev_priv(dev);

	sky2->rx_csum = data;

	sky2_write32(sky2->hw, Q_ADDR(rxqaddr[sky2->port], Q_CSR),
		     data ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);

	return 0;
}

static u32 sky2_get_msglevel(struct net_device *netdev)
{
	struct sky2_port *sky2 = netdev_priv(netdev);
	return sky2->msg_enable;
}

static int sky2_nway_reset(struct net_device *dev)
{
	struct sky2_port *sky2 = netdev_priv(dev);

	if (sky2->autoneg != AUTONEG_ENABLE)
		return -EINVAL;

	sky2_phy_reinit(sky2);

	return 0;
}

static void sky2_phy_stats(struct sky2_port *sky2, u64 * data, unsigned count)
{
	struct sky2_hw *hw = sky2->hw;
	unsigned port = sky2->port;
	int i;

	data[0] = (u64) gma_read32(hw, port, GM_TXO_OK_HI) << 32
	    | (u64) gma_read32(hw, port, GM_TXO_OK_LO);
	data[1] = (u64) gma_read32(hw, port, GM_RXO_OK_HI) << 32
	    | (u64) gma_read32(hw, port, GM_RXO_OK_LO);

	for (i = 2; i < count; i++)
		data[i] = (u64) gma_read32(hw, port, sky2_stats[i].offset);
}

static void sky2_set_msglevel(struct net_device *netdev, u32 value)
{
	struct sky2_port *sky2 = netdev_priv(netdev);
	sky2->msg_enable = value;
}

static int sky2_get_stats_count(struct net_device *dev)
{
	return ARRAY_SIZE(sky2_stats);
}

static void sky2_get_ethtool_stats(struct net_device *dev,
				   struct ethtool_stats *stats, u64 * data)
{
	struct sky2_port *sky2 = netdev_priv(dev);

	sky2_phy_stats(sky2, data, ARRAY_SIZE(sky2_stats));
}

static void sky2_get_strings(struct net_device *dev, u32 stringset, u8 * data)
{
	int i;

	switch (stringset) {
	case ETH_SS_STATS:
		for (i = 0; i < ARRAY_SIZE(sky2_stats); i++)
			memcpy(data + i * ETH_GSTRING_LEN,
			       sky2_stats[i].name, ETH_GSTRING_LEN);
		break;
	}
}

/* Use hardware MIB variables for critical path statistics and
 * transmit feedback not reported at interrupt.
 * Other errors are accounted for in interrupt handler.
 */
static struct net_device_stats *sky2_get_stats(struct net_device *dev)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	u64 data[13];

	sky2_phy_stats(sky2, data, ARRAY_SIZE(data));

	sky2->net_stats.tx_bytes = data[0];
	sky2->net_stats.rx_bytes = data[1];
	sky2->net_stats.tx_packets = data[2] + data[4] + data[6];
	sky2->net_stats.rx_packets = data[3] + data[5] + data[7];
	sky2->net_stats.multicast = data[5] + data[7];
	sky2->net_stats.collisions = data[10];
	sky2->net_stats.tx_aborted_errors = data[12];

	return &sky2->net_stats;
}

static int sky2_set_mac_address(struct net_device *dev, void *p)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sockaddr *addr = p;

	if (!is_valid_ether_addr(addr->sa_data))
		return -EADDRNOTAVAIL;

	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
	memcpy_toio(sky2->hw->regs + B2_MAC_1 + sky2->port * 8,
		    dev->dev_addr, ETH_ALEN);
	memcpy_toio(sky2->hw->regs + B2_MAC_2 + sky2->port * 8,
		    dev->dev_addr, ETH_ALEN);

	if (netif_running(dev))
		sky2_phy_reinit(sky2);

	return 0;
}

static void sky2_set_multicast(struct net_device *dev)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	unsigned port = sky2->port;
	struct dev_mc_list *list = dev->mc_list;
	u16 reg;
	u8 filter[8];

	memset(filter, 0, sizeof(filter));

	reg = gma_read16(hw, port, GM_RX_CTRL);
	reg |= GM_RXCR_UCF_ENA;

	if (dev->flags & IFF_PROMISC)	/* promiscuous */
		reg &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA);
	else if ((dev->flags & IFF_ALLMULTI) || dev->mc_count > 16)	/* all multicast */
		memset(filter, 0xff, sizeof(filter));
	else if (dev->mc_count == 0)	/* no multicast */
		reg &= ~GM_RXCR_MCF_ENA;
	else {
		int i;
		reg |= GM_RXCR_MCF_ENA;

		for (i = 0; list && i < dev->mc_count; i++, list = list->next) {
			u32 bit = ether_crc(ETH_ALEN, list->dmi_addr) & 0x3f;
			filter[bit / 8] |= 1 << (bit % 8);
		}
	}

	gma_write16(hw, port, GM_MC_ADDR_H1,
		    (u16) filter[0] | ((u16) filter[1] << 8));
	gma_write16(hw, port, GM_MC_ADDR_H2,
		    (u16) filter[2] | ((u16) filter[3] << 8));
	gma_write16(hw, port, GM_MC_ADDR_H3,
		    (u16) filter[4] | ((u16) filter[5] << 8));
	gma_write16(hw, port, GM_MC_ADDR_H4,
		    (u16) filter[6] | ((u16) filter[7] << 8));

	gma_write16(hw, port, GM_RX_CTRL, reg);
}

/* Can have one global because blinking is controlled by
 * ethtool and that is always under RTNL mutex
 */
static void sky2_led(struct sky2_hw *hw, unsigned port, int on)
{
	u16 pg;

	switch (hw->chip_id) {
	case CHIP_ID_YUKON_XL:
		pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
		gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
			     on ? (PHY_M_LEDC_LOS_CTRL(1) |
				   PHY_M_LEDC_INIT_CTRL(7) |
				   PHY_M_LEDC_STA1_CTRL(7) |
				   PHY_M_LEDC_STA0_CTRL(7))
			     : 0);

		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
		break;

	default:
		gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
		gm_phy_write(hw, port, PHY_MARV_LED_OVER,
			     on ? PHY_M_LED_MO_DUP(MO_LED_ON) |
			     PHY_M_LED_MO_10(MO_LED_ON) |
			     PHY_M_LED_MO_100(MO_LED_ON) |
			     PHY_M_LED_MO_1000(MO_LED_ON) |
			     PHY_M_LED_MO_RX(MO_LED_ON)
			     : PHY_M_LED_MO_DUP(MO_LED_OFF) |
			     PHY_M_LED_MO_10(MO_LED_OFF) |
			     PHY_M_LED_MO_100(MO_LED_OFF) |
			     PHY_M_LED_MO_1000(MO_LED_OFF) |
			     PHY_M_LED_MO_RX(MO_LED_OFF));

	}
}

/* blink LED's for finding board */
static int sky2_phys_id(struct net_device *dev, u32 data)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	unsigned port = sky2->port;
	u16 ledctrl, ledover = 0;
	long ms;
	int interrupted;
	int onoff = 1;

	if (!data || data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ))
		ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT);
	else
		ms = data * 1000;

	/* save initial values */
	down(&sky2->phy_sema);
	if (hw->chip_id == CHIP_ID_YUKON_XL) {
		u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
		ledctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
	} else {
		ledctrl = gm_phy_read(hw, port, PHY_MARV_LED_CTRL);
		ledover = gm_phy_read(hw, port, PHY_MARV_LED_OVER);
	}

	interrupted = 0;
	while (!interrupted && ms > 0) {
		sky2_led(hw, port, onoff);
		onoff = !onoff;

		up(&sky2->phy_sema);
		interrupted = msleep_interruptible(250);
		down(&sky2->phy_sema);

		ms -= 250;
	}

	/* resume regularly scheduled programming */
	if (hw->chip_id == CHIP_ID_YUKON_XL) {
		u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
		gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ledctrl);
		gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
	} else {
		gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
		gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
	}
	up(&sky2->phy_sema);

	return 0;
}

static void sky2_get_pauseparam(struct net_device *dev,
				struct ethtool_pauseparam *ecmd)
{
	struct sky2_port *sky2 = netdev_priv(dev);

	ecmd->tx_pause = sky2->tx_pause;
	ecmd->rx_pause = sky2->rx_pause;
	ecmd->autoneg = sky2->autoneg;
}

static int sky2_set_pauseparam(struct net_device *dev,
			       struct ethtool_pauseparam *ecmd)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	int err = 0;

	sky2->autoneg = ecmd->autoneg;
	sky2->tx_pause = ecmd->tx_pause != 0;
	sky2->rx_pause = ecmd->rx_pause != 0;

	sky2_phy_reinit(sky2);

	return err;
}

#ifdef CONFIG_PM
static void sky2_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
	struct sky2_port *sky2 = netdev_priv(dev);

	wol->supported = WAKE_MAGIC;
	wol->wolopts = sky2->wol ? WAKE_MAGIC : 0;
}

static int sky2_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;

	if (wol->wolopts != WAKE_MAGIC && wol->wolopts != 0)
		return -EOPNOTSUPP;

	sky2->wol = wol->wolopts == WAKE_MAGIC;

	if (sky2->wol) {
		memcpy_toio(hw->regs + WOL_MAC_ADDR, dev->dev_addr, ETH_ALEN);

		sky2_write16(hw, WOL_CTRL_STAT,
			     WOL_CTL_ENA_PME_ON_MAGIC_PKT |
			     WOL_CTL_ENA_MAGIC_PKT_UNIT);
	} else
		sky2_write16(hw, WOL_CTRL_STAT, WOL_CTL_DEFAULT);

	return 0;
}
#endif

static int sky2_get_coalesce(struct net_device *dev,
			     struct ethtool_coalesce *ecmd)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;

	if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_STOP)
		ecmd->tx_coalesce_usecs = 0;
	else {
		u32 clks = sky2_read32(hw, STAT_TX_TIMER_INI);
		ecmd->tx_coalesce_usecs = sky2_clk2us(hw, clks);
	}
	ecmd->tx_max_coalesced_frames = sky2_read16(hw, STAT_TX_IDX_TH);

	if (sky2_read8(hw, STAT_LEV_TIMER_CTRL) == TIM_STOP)
		ecmd->rx_coalesce_usecs = 0;
	else {
		u32 clks = sky2_read32(hw, STAT_LEV_TIMER_INI);
		ecmd->rx_coalesce_usecs = sky2_clk2us(hw, clks);
	}
	ecmd->rx_max_coalesced_frames = sky2_read8(hw, STAT_FIFO_WM);

	if (sky2_read8(hw, STAT_ISR_TIMER_CTRL) == TIM_STOP)
		ecmd->rx_coalesce_usecs_irq = 0;
	else {
		u32 clks = sky2_read32(hw, STAT_ISR_TIMER_INI);
		ecmd->rx_coalesce_usecs_irq = sky2_clk2us(hw, clks);
	}

	ecmd->rx_max_coalesced_frames_irq = sky2_read8(hw, STAT_FIFO_ISR_WM);

	return 0;
}

/* Note: this affect both ports */
static int sky2_set_coalesce(struct net_device *dev,
			     struct ethtool_coalesce *ecmd)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	struct sky2_hw *hw = sky2->hw;
	const u32 tmin = sky2_clk2us(hw, 1);
	const u32 tmax = 5000;

	if (ecmd->tx_coalesce_usecs != 0 &&
	    (ecmd->tx_coalesce_usecs < tmin || ecmd->tx_coalesce_usecs > tmax))
		return -EINVAL;

	if (ecmd->rx_coalesce_usecs != 0 &&
	    (ecmd->rx_coalesce_usecs < tmin || ecmd->rx_coalesce_usecs > tmax))
		return -EINVAL;

	if (ecmd->rx_coalesce_usecs_irq != 0 &&
	    (ecmd->rx_coalesce_usecs_irq < tmin || ecmd->rx_coalesce_usecs_irq > tmax))
		return -EINVAL;

	if (ecmd->tx_max_coalesced_frames > 0xffff)
		return -EINVAL;
	if (ecmd->rx_max_coalesced_frames > 0xff)
		return -EINVAL;
	if (ecmd->rx_max_coalesced_frames_irq > 0xff)
		return -EINVAL;

	if (ecmd->tx_coalesce_usecs == 0)
		sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
	else {
		sky2_write32(hw, STAT_TX_TIMER_INI,
			     sky2_us2clk(hw, ecmd->tx_coalesce_usecs));
		sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
	}
	sky2_write16(hw, STAT_TX_IDX_TH, ecmd->tx_max_coalesced_frames);

	if (ecmd->rx_coalesce_usecs == 0)
		sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_STOP);
	else {
		sky2_write32(hw, STAT_LEV_TIMER_INI,
			     sky2_us2clk(hw, ecmd->rx_coalesce_usecs));
		sky2_write8(hw, STAT_LEV_TIMER_CTRL, TIM_START);
	}
	sky2_write8(hw, STAT_FIFO_WM, ecmd->rx_max_coalesced_frames);

	if (ecmd->rx_coalesce_usecs_irq == 0)
		sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_STOP);
	else {
		sky2_write32(hw, STAT_TX_TIMER_INI,
			     sky2_us2clk(hw, ecmd->rx_coalesce_usecs_irq));
		sky2_write8(hw, STAT_ISR_TIMER_CTRL, TIM_START);
	}
	sky2_write8(hw, STAT_FIFO_ISR_WM, ecmd->rx_max_coalesced_frames_irq);
	return 0;
}

static void sky2_get_ringparam(struct net_device *dev,
			       struct ethtool_ringparam *ering)
{
	struct sky2_port *sky2 = netdev_priv(dev);

	ering->rx_max_pending = RX_MAX_PENDING;
	ering->rx_mini_max_pending = 0;
	ering->rx_jumbo_max_pending = 0;
	ering->tx_max_pending = TX_RING_SIZE - 1;

	ering->rx_pending = sky2->rx_pending;
	ering->rx_mini_pending = 0;
	ering->rx_jumbo_pending = 0;
	ering->tx_pending = sky2->tx_pending;
}

static int sky2_set_ringparam(struct net_device *dev,
			      struct ethtool_ringparam *ering)
{
	struct sky2_port *sky2 = netdev_priv(dev);
	int err = 0;

	if (ering->rx_pending > RX_MAX_PENDING ||
	    ering->rx_pending < 8 ||
	    ering->tx_pending < MAX_SKB_TX_LE ||
	    ering->tx_pending > TX_RING_SIZE - 1)
		return -EINVAL;

	if (netif_running(dev))
		sky2_down(dev);

	sky2->rx_pending = ering->rx_pending;
	sky2->tx_pending = ering->tx_pending;

	if (netif_running(dev)) {
		err = sky2_up(dev);
		if (err)
			dev_close(dev);
		else
			sky2_set_multicast(dev);
	}

	return err;
}

static int sky2_get_regs_len(struct net_device *dev)
{
	return 0x4000;
}

/*
 * Returns copy of control register region
 * Note: access to the RAM address register set will cause timeouts.
 */
static void sky2_get_regs(struct net_device *dev, struct ethtool_regs *regs,
			  void *p)
{
	const struct sky2_port *sky2 = netdev_priv(dev);
	const void __iomem *io = sky2->hw->regs;

	BUG_ON(regs->len < B3_RI_WTO_R1);
	regs->version = 1;
	memset(p, 0, regs->len);

	memcpy_fromio(p, io, B3_RAM_ADDR);

	memcpy_fromio(p + B3_RI_WTO_R1,
		      io + B3_RI_WTO_R1,
		      regs->len - B3_RI_WTO_R1);
}

static struct ethtool_ops sky2_ethtool_ops = {
	.get_settings = sky2_get_settings,
	.set_settings = sky2_set_settings,
	.get_drvinfo = sky2_get_drvinfo,
	.get_msglevel = sky2_get_msglevel,
	.set_msglevel = sky2_set_msglevel,
	.nway_reset   = sky2_nway_reset,
	.get_regs_len = sky2_get_regs_len,
	.get_regs = sky2_get_regs,
	.get_link = ethtool_op_get_link,
	.get_sg = ethtool_op_get_sg,
	.set_sg = ethtool_op_set_sg,
	.get_tx_csum = ethtool_op_get_tx_csum,
	.set_tx_csum = ethtool_op_set_tx_csum,
	.get_tso = ethtool_op_get_tso,
	.set_tso = ethtool_op_set_tso,
	.get_rx_csum = sky2_get_rx_csum,
	.set_rx_csum = sky2_set_rx_csum,
	.get_strings = sky2_get_strings,
	.get_coalesce = sky2_get_coalesce,
	.set_coalesce = sky2_set_coalesce,
	.get_ringparam = sky2_get_ringparam,
	.set_ringparam = sky2_set_ringparam,
	.get_pauseparam = sky2_get_pauseparam,
	.set_pauseparam = sky2_set_pauseparam,
#ifdef CONFIG_PM
	.get_wol = sky2_get_wol,
	.set_wol = sky2_set_wol,
#endif
	.phys_id = sky2_phys_id,
	.get_stats_count = sky2_get_stats_count,
	.get_ethtool_stats = sky2_get_ethtool_stats,
	.get_perm_addr	= ethtool_op_get_perm_addr,
};

/* Initialize network device */
static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
						     unsigned port, int highmem)
{
	struct sky2_port *sky2;
	struct net_device *dev = alloc_etherdev(sizeof(*sky2));

	if (!dev) {
		printk(KERN_ERR "sky2 etherdev alloc failed");
		return NULL;
	}

	SET_MODULE_OWNER(dev);
	SET_NETDEV_DEV(dev, &hw->pdev->dev);
	dev->irq = hw->pdev->irq;
	dev->open = sky2_up;
	dev->stop = sky2_down;
	dev->do_ioctl = sky2_ioctl;
	dev->hard_start_xmit = sky2_xmit_frame;
	dev->get_stats = sky2_get_stats;
	dev->set_multicast_list = sky2_set_multicast;
	dev->set_mac_address = sky2_set_mac_address;
	dev->change_mtu = sky2_change_mtu;
	SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops);
	dev->tx_timeout = sky2_tx_timeout;
	dev->watchdog_timeo = TX_WATCHDOG;
	if (port == 0)
		dev->poll = sky2_poll;
	dev->weight = NAPI_WEIGHT;
#ifdef CONFIG_NET_POLL_CONTROLLER
	dev->poll_controller = sky2_netpoll;
#endif

	sky2 = netdev_priv(dev);
	sky2->netdev = dev;
	sky2->hw = hw;
	sky2->msg_enable = netif_msg_init(debug, default_msg);

	spin_lock_init(&sky2->tx_lock);
	/* Auto speed and flow control */
	sky2->autoneg = AUTONEG_ENABLE;
	sky2->tx_pause = 1;
	sky2->rx_pause = 1;
	sky2->duplex = -1;
	sky2->speed = -1;
	sky2->advertising = sky2_supported_modes(hw);

 	/* Receive checksum disabled for Yukon XL
	 * because of observed problems with incorrect
	 * values when multiple packets are received in one interrupt
	 */
	sky2->rx_csum = (hw->chip_id != CHIP_ID_YUKON_XL);

	INIT_WORK(&sky2->phy_task, sky2_phy_task, sky2);
	init_MUTEX(&sky2->phy_sema);
	sky2->tx_pending = TX_DEF_PENDING;
	sky2->rx_pending = is_ec_a1(hw) ? 8 : RX_DEF_PENDING;
	sky2->rx_bufsize = sky2_buf_size(ETH_DATA_LEN);

	hw->dev[port] = dev;

	sky2->port = port;

	dev->features |= NETIF_F_LLTX;
	if (hw->chip_id != CHIP_ID_YUKON_EC_U)
		dev->features |= NETIF_F_TSO;
	if (highmem)
		dev->features |= NETIF_F_HIGHDMA;
	dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;

#ifdef SKY2_VLAN_TAG_USED
	dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
	dev->vlan_rx_register = sky2_vlan_rx_register;
	dev->vlan_rx_kill_vid = sky2_vlan_rx_kill_vid;
#endif

	/* read the mac address */
	memcpy_fromio(dev->dev_addr, hw->regs + B2_MAC_1 + port * 8, ETH_ALEN);
	memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);

	/* device is off until link detection */
	netif_carrier_off(dev);
	netif_stop_queue(dev);

	return dev;
}

static void __devinit sky2_show_addr(struct net_device *dev)
{
	const struct sky2_port *sky2 = netdev_priv(dev);

	if (netif_msg_probe(sky2))
		printk(KERN_INFO PFX "%s: addr %02x:%02x:%02x:%02x:%02x:%02x\n",
		       dev->name,
		       dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
		       dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
}

static int __devinit sky2_probe(struct pci_dev *pdev,
				const struct pci_device_id *ent)
{
	struct net_device *dev, *dev1 = NULL;
	struct sky2_hw *hw;
	int err, pm_cap, using_dac = 0;

	err = pci_enable_device(pdev);
	if (err) {
		printk(KERN_ERR PFX "%s cannot enable PCI device\n",
		       pci_name(pdev));
		goto err_out;
	}

	err = pci_request_regions(pdev, DRV_NAME);
	if (err) {
		printk(KERN_ERR PFX "%s cannot obtain PCI resources\n",
		       pci_name(pdev));
		goto err_out;
	}

	pci_set_master(pdev);

	/* Find power-management capability. */
	pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
	if (pm_cap == 0) {
		printk(KERN_ERR PFX "Cannot find PowerManagement capability, "
		       "aborting.\n");
		err = -EIO;
		goto err_out_free_regions;
	}

	if (sizeof(dma_addr_t) > sizeof(u32) &&
	    !(err = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) {
		using_dac = 1;
		err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
		if (err < 0) {
			printk(KERN_ERR PFX "%s unable to obtain 64 bit DMA "
			       "for consistent allocations\n", pci_name(pdev));
			goto err_out_free_regions;
		}

	} else {
		err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
		if (err) {
			printk(KERN_ERR PFX "%s no usable DMA configuration\n",
			       pci_name(pdev));
			goto err_out_free_regions;
		}
	}

#ifdef __BIG_ENDIAN
	/* byte swap descriptors in hardware */
	{
		u32 reg;

		pci_read_config_dword(pdev, PCI_DEV_REG2, &reg);
		reg |= PCI_REV_DESC;
		pci_write_config_dword(pdev, PCI_DEV_REG2, reg);
	}
#endif

	err = -ENOMEM;
	hw = kzalloc(sizeof(*hw), GFP_KERNEL);
	if (!hw) {
		printk(KERN_ERR PFX "%s: cannot allocate hardware struct\n",
		       pci_name(pdev));
		goto err_out_free_regions;
	}

	hw->pdev = pdev;

	hw->regs = ioremap_nocache(pci_resource_start(pdev, 0), 0x4000);
	if (!hw->regs) {
		printk(KERN_ERR PFX "%s: cannot map device registers\n",
		       pci_name(pdev));
		goto err_out_free_hw;
	}
	hw->pm_cap = pm_cap;

	err = sky2_reset(hw);
	if (err)
		goto err_out_iounmap;

	printk(KERN_INFO PFX "v%s addr 0x%lx irq %d Yukon-%s (0x%x) rev %d\n",
	       DRV_VERSION, pci_resource_start(pdev, 0), pdev->irq,
	       yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
	       hw->chip_id, hw->chip_rev);

	dev = sky2_init_netdev(hw, 0, using_dac);
	if (!dev)
		goto err_out_free_pci;

	err = register_netdev(dev);
	if (err) {
		printk(KERN_ERR PFX "%s: cannot register net device\n",
		       pci_name(pdev));
		goto err_out_free_netdev;
	}

	sky2_show_addr(dev);

	if (hw->ports > 1 && (dev1 = sky2_init_netdev(hw, 1, using_dac))) {
		if (register_netdev(dev1) == 0)
			sky2_show_addr(dev1);
		else {
			/* Failure to register second port need not be fatal */
			printk(KERN_WARNING PFX
			       "register of second port failed\n");
			hw->dev[1] = NULL;
			free_netdev(dev1);
		}
	}

	err = request_irq(pdev->irq, sky2_intr, SA_SHIRQ, DRV_NAME, hw);
	if (err) {
		printk(KERN_ERR PFX "%s: cannot assign irq %d\n",
		       pci_name(pdev), pdev->irq);
		goto err_out_unregister;
	}

	hw->intr_mask = Y2_IS_BASE;
	sky2_write32(hw, B0_IMSK, hw->intr_mask);

	pci_set_drvdata(pdev, hw);

	return 0;

err_out_unregister:
	if (dev1) {
		unregister_netdev(dev1);
		free_netdev(dev1);
	}
	unregister_netdev(dev);
err_out_free_netdev:
	free_netdev(dev);
err_out_free_pci:
	sky2_write8(hw, B0_CTST, CS_RST_SET);
	pci_free_consistent(hw->pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
err_out_iounmap:
	iounmap(hw->regs);
err_out_free_hw:
	kfree(hw);
err_out_free_regions:
	pci_release_regions(pdev);
	pci_disable_device(pdev);
err_out:
	return err;
}

static void __devexit sky2_remove(struct pci_dev *pdev)
{
	struct sky2_hw *hw = pci_get_drvdata(pdev);
	struct net_device *dev0, *dev1;

	if (!hw)
		return;

	dev0 = hw->dev[0];
	dev1 = hw->dev[1];
	if (dev1)
		unregister_netdev(dev1);
	unregister_netdev(dev0);

	sky2_write32(hw, B0_IMSK, 0);
	sky2_set_power_state(hw, PCI_D3hot);
	sky2_write16(hw, B0_Y2LED, LED_STAT_OFF);
	sky2_write8(hw, B0_CTST, CS_RST_SET);
	sky2_read8(hw, B0_CTST);

	free_irq(pdev->irq, hw);
	pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
	pci_release_regions(pdev);
	pci_disable_device(pdev);

	if (dev1)
		free_netdev(dev1);
	free_netdev(dev0);
	iounmap(hw->regs);
	kfree(hw);

	pci_set_drvdata(pdev, NULL);
}

#ifdef CONFIG_PM
static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
{
	struct sky2_hw *hw = pci_get_drvdata(pdev);
	int i;

	for (i = 0; i < 2; i++) {
		struct net_device *dev = hw->dev[i];

		if (dev) {
			if (!netif_running(dev))
				continue;

			sky2_down(dev);
			netif_device_detach(dev);
		}
	}

	return sky2_set_power_state(hw, pci_choose_state(pdev, state));
}

static int sky2_resume(struct pci_dev *pdev)
{
	struct sky2_hw *hw = pci_get_drvdata(pdev);
	int i;

	pci_restore_state(pdev);
	pci_enable_wake(pdev, PCI_D0, 0);
	sky2_set_power_state(hw, PCI_D0);

	sky2_reset(hw);

	for (i = 0; i < 2; i++) {
		struct net_device *dev = hw->dev[i];
		if (dev) {
			if (netif_running(dev)) {
				netif_device_attach(dev);
				if (sky2_up(dev))
					dev_close(dev);
			}
		}
	}
	return 0;
}
#endif

static struct pci_driver sky2_driver = {
	.name = DRV_NAME,
	.id_table = sky2_id_table,
	.probe = sky2_probe,
	.remove = __devexit_p(sky2_remove),
#ifdef CONFIG_PM
	.suspend = sky2_suspend,
	.resume = sky2_resume,
#endif
};

static int __init sky2_init_module(void)
{
	return pci_register_driver(&sky2_driver);
}

static void __exit sky2_cleanup_module(void)
{
	pci_unregister_driver(&sky2_driver);
}

module_init(sky2_init_module);
module_exit(sky2_cleanup_module);

MODULE_DESCRIPTION("Marvell Yukon 2 Gigabit Ethernet driver");
MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);




/*
 * Definitions for the new Marvell Yukon 2 driver.
 */
#ifndef _SKY2_H
#define _SKY2_H

/* PCI config registers */
#define PCI_DEV_REG1	0x40
#define PCI_DEV_REG2	0x44
#define PCI_DEV_STATUS  0x7c
#define PCI_OS_PCI_X    (1<<26)

#define PEX_LNK_STAT	0xf2
#define PEX_UNC_ERR_STAT 0x104
#define PEX_DEV_CTRL	0xe8

/* Yukon-2 */
enum pci_dev_reg_1 {
	PCI_Y2_PIG_ENA	 = 1<<31, /* Enable Plug-in-Go (YUKON-2) */
	PCI_Y2_DLL_DIS	 = 1<<30, /* Disable PCI DLL (YUKON-2) */
	PCI_Y2_PHY2_COMA = 1<<29, /* Set PHY 2 to Coma Mode (YUKON-2) */
	PCI_Y2_PHY1_COMA = 1<<28, /* Set PHY 1 to Coma Mode (YUKON-2) */
	PCI_Y2_PHY2_POWD = 1<<27, /* Set PHY 2 to Power Down (YUKON-2) */
	PCI_Y2_PHY1_POWD = 1<<26, /* Set PHY 1 to Power Down (YUKON-2) */
};

enum pci_dev_reg_2 {
	PCI_VPD_WR_THR	= 0xffL<<24,	/* Bit 31..24:	VPD Write Threshold */
	PCI_DEV_SEL	= 0x7fL<<17,	/* Bit 23..17:	EEPROM Device Select */
	PCI_VPD_ROM_SZ	= 7L<<14,	/* Bit 16..14:	VPD ROM Size	*/

	PCI_PATCH_DIR	= 0xfL<<8,	/* Bit 11.. 8:	Ext Patches dir 3..0 */
	PCI_EXT_PATCHS	= 0xfL<<4,	/* Bit	7.. 4:	Extended Patches 3..0 */
	PCI_EN_DUMMY_RD	= 1<<3,		/* Enable Dummy Read */
	PCI_REV_DESC	= 1<<2,		/* Reverse Desc. Bytes */

	PCI_USEDATA64	= 1<<0,		/* Use 64Bit Data bus ext */
};


#define PCI_STATUS_ERROR_BITS (PCI_STATUS_DETECTED_PARITY | \
			       PCI_STATUS_SIG_SYSTEM_ERROR | \
			       PCI_STATUS_REC_MASTER_ABORT | \
			       PCI_STATUS_REC_TARGET_ABORT | \
			       PCI_STATUS_PARITY)

enum pex_dev_ctrl {
	PEX_DC_MAX_RRS_MSK	= 7<<12, /* Bit 14..12:	Max. Read Request Size */
	PEX_DC_EN_NO_SNOOP	= 1<<11,/* Enable No Snoop */
	PEX_DC_EN_AUX_POW	= 1<<10,/* Enable AUX Power */
	PEX_DC_EN_PHANTOM	= 1<<9,	/* Enable Phantom Functions */
	PEX_DC_EN_EXT_TAG	= 1<<8,	/* Enable Extended Tag Field */
	PEX_DC_MAX_PLS_MSK	= 7<<5,	/* Bit  7.. 5:	Max. Payload Size Mask */
	PEX_DC_EN_REL_ORD	= 1<<4,	/* Enable Relaxed Ordering */
	PEX_DC_EN_UNS_RQ_RP	= 1<<3,	/* Enable Unsupported Request Reporting */
	PEX_DC_EN_FAT_ER_RP	= 1<<2,	/* Enable Fatal Error Reporting */
	PEX_DC_EN_NFA_ER_RP	= 1<<1,	/* Enable Non-Fatal Error Reporting */
	PEX_DC_EN_COR_ER_RP	= 1<<0,	/* Enable Correctable Error Reporting */
};
#define  PEX_DC_MAX_RD_RQ_SIZE(x) (((x)<<12) & PEX_DC_MAX_RRS_MSK)

/* PEX_UNC_ERR_STAT	 PEX Uncorrectable Errors Status Register (Yukon-2) */
enum pex_err {
	PEX_UNSUP_REQ 	= 1<<20, /* Unsupported Request Error */

	PEX_MALFOR_TLP	= 1<<18, /* Malformed TLP */

	PEX_UNEXP_COMP	= 1<<16, /* Unexpected Completion */

	PEX_COMP_TO	= 1<<14, /* Completion Timeout */
	PEX_FLOW_CTRL_P	= 1<<13, /* Flow Control Protocol Error */
	PEX_POIS_TLP	= 1<<12, /* Poisoned TLP */

	PEX_DATA_LINK_P = 1<<4,	/* Data Link Protocol Error */
	PEX_FATAL_ERRORS= (PEX_MALFOR_TLP | PEX_FLOW_CTRL_P | PEX_DATA_LINK_P),
};


enum csr_regs {
	B0_RAP		= 0x0000,
	B0_CTST		= 0x0004,
	B0_Y2LED	= 0x0005,
	B0_POWER_CTRL	= 0x0007,
	B0_ISRC		= 0x0008,
	B0_IMSK		= 0x000c,
	B0_HWE_ISRC	= 0x0010,
	B0_HWE_IMSK	= 0x0014,

	/* Special ISR registers (Yukon-2 only) */
	B0_Y2_SP_ISRC2	= 0x001c,
	B0_Y2_SP_ISRC3	= 0x0020,
	B0_Y2_SP_EISR	= 0x0024,
	B0_Y2_SP_LISR	= 0x0028,
	B0_Y2_SP_ICR	= 0x002c,

	B2_MAC_1	= 0x0100,
	B2_MAC_2	= 0x0108,
	B2_MAC_3	= 0x0110,
	B2_CONN_TYP	= 0x0118,
	B2_PMD_TYP	= 0x0119,
	B2_MAC_CFG	= 0x011a,
	B2_CHIP_ID	= 0x011b,
	B2_E_0		= 0x011c,

	B2_Y2_CLK_GATE  = 0x011d,
	B2_Y2_HW_RES	= 0x011e,
	B2_E_3		= 0x011f,
	B2_Y2_CLK_CTRL	= 0x0120,

	B2_TI_INI	= 0x0130,
	B2_TI_VAL	= 0x0134,
	B2_TI_CTRL	= 0x0138,
	B2_TI_TEST	= 0x0139,

	B2_TST_CTRL1	= 0x0158,
	B2_TST_CTRL2	= 0x0159,
	B2_GP_IO	= 0x015c,

	B2_I2C_CTRL	= 0x0160,
	B2_I2C_DATA	= 0x0164,
	B2_I2C_IRQ	= 0x0168,
	B2_I2C_SW	= 0x016c,

	B3_RAM_ADDR	= 0x0180,
	B3_RAM_DATA_LO	= 0x0184,
	B3_RAM_DATA_HI	= 0x0188,

/* RAM Interface Registers */
/* Yukon-2: use RAM_BUFFER() to access the RAM buffer */
/*
 * The HW-Spec. calls this registers Timeout Value 0..11. But this names are
 * not usable in SW. Please notice these are NOT real timeouts, these are
 * the number of qWords transferred continuously.
 */
#define RAM_BUFFER(port, reg)	(reg | (port <<6))

	B3_RI_WTO_R1	= 0x0190,
	B3_RI_WTO_XA1	= 0x0191,
	B3_RI_WTO_XS1	= 0x0192,
	B3_RI_RTO_R1	= 0x0193,
	B3_RI_RTO_XA1	= 0x0194,
	B3_RI_RTO_XS1	= 0x0195,
	B3_RI_WTO_R2	= 0x0196,
	B3_RI_WTO_XA2	= 0x0197,
	B3_RI_WTO_XS2	= 0x0198,
	B3_RI_RTO_R2	= 0x0199,
	B3_RI_RTO_XA2	= 0x019a,
	B3_RI_RTO_XS2	= 0x019b,
	B3_RI_TO_VAL	= 0x019c,
	B3_RI_CTRL	= 0x01a0,
	B3_RI_TEST	= 0x01a2,
	B3_MA_TOINI_RX1	= 0x01b0,
	B3_MA_TOINI_RX2	= 0x01b1,
	B3_MA_TOINI_TX1	= 0x01b2,
	B3_MA_TOINI_TX2	= 0x01b3,
	B3_MA_TOVAL_RX1	= 0x01b4,
	B3_MA_TOVAL_RX2	= 0x01b5,
	B3_MA_TOVAL_TX1	= 0x01b6,
	B3_MA_TOVAL_TX2	= 0x01b7,
	B3_MA_TO_CTRL	= 0x01b8,
	B3_MA_TO_TEST	= 0x01ba,
	B3_MA_RCINI_RX1	= 0x01c0,
	B3_MA_RCINI_RX2	= 0x01c1,
	B3_MA_RCINI_TX1	= 0x01c2,
	B3_MA_RCINI_TX2	= 0x01c3,
	B3_MA_RCVAL_RX1	= 0x01c4,
	B3_MA_RCVAL_RX2	= 0x01c5,
	B3_MA_RCVAL_TX1	= 0x01c6,
	B3_MA_RCVAL_TX2	= 0x01c7,
	B3_MA_RC_CTRL	= 0x01c8,
	B3_MA_RC_TEST	= 0x01ca,
	B3_PA_TOINI_RX1	= 0x01d0,
	B3_PA_TOINI_RX2	= 0x01d4,
	B3_PA_TOINI_TX1	= 0x01d8,
	B3_PA_TOINI_TX2	= 0x01dc,
	B3_PA_TOVAL_RX1	= 0x01e0,
	B3_PA_TOVAL_RX2	= 0x01e4,
	B3_PA_TOVAL_TX1	= 0x01e8,
	B3_PA_TOVAL_TX2	= 0x01ec,
	B3_PA_CTRL	= 0x01f0,
	B3_PA_TEST	= 0x01f2,

	Y2_CFG_SPC	= 0x1c00,
};

/*	B0_CTST			16 bit	Control/Status register */
enum {
	Y2_VMAIN_AVAIL	= 1<<17,/* VMAIN available (YUKON-2 only) */
	Y2_VAUX_AVAIL	= 1<<16,/* VAUX available (YUKON-2 only) */
	Y2_ASF_ENABLE	= 1<<13,/* ASF Unit Enable (YUKON-2 only) */
	Y2_ASF_DISABLE	= 1<<12,/* ASF Unit Disable (YUKON-2 only) */
	Y2_CLK_RUN_ENA	= 1<<11,/* CLK_RUN Enable  (YUKON-2 only) */
	Y2_CLK_RUN_DIS	= 1<<10,/* CLK_RUN Disable (YUKON-2 only) */
	Y2_LED_STAT_ON	= 1<<9, /* Status LED On  (YUKON-2 only) */
	Y2_LED_STAT_OFF	= 1<<8, /* Status LED Off (YUKON-2 only) */

	CS_ST_SW_IRQ	= 1<<7,	/* Set IRQ SW Request */
	CS_CL_SW_IRQ	= 1<<6,	/* Clear IRQ SW Request */
	CS_STOP_DONE	= 1<<5,	/* Stop Master is finished */
	CS_STOP_MAST	= 1<<4,	/* Command Bit to stop the master */
	CS_MRST_CLR	= 1<<3,	/* Clear Master reset	*/
	CS_MRST_SET	= 1<<2,	/* Set Master reset	*/
	CS_RST_CLR	= 1<<1,	/* Clear Software reset	*/
	CS_RST_SET	= 1,	/* Set   Software reset	*/
};

/*	B0_LED			 8 Bit	LED register */
enum {
/* Bit  7.. 2:	reserved */
	LED_STAT_ON	= 1<<1,	/* Status LED on	*/
	LED_STAT_OFF	= 1,	/* Status LED off	*/
};

/*	B0_POWER_CTRL	 8 Bit	Power Control reg (YUKON only) */
enum {
	PC_VAUX_ENA	= 1<<7,	/* Switch VAUX Enable  */
	PC_VAUX_DIS	= 1<<6,	/* Switch VAUX Disable */
	PC_VCC_ENA	= 1<<5,	/* Switch VCC Enable  */
	PC_VCC_DIS	= 1<<4,	/* Switch VCC Disable */
	PC_VAUX_ON	= 1<<3,	/* Switch VAUX On  */
	PC_VAUX_OFF	= 1<<2,	/* Switch VAUX Off */
	PC_VCC_ON	= 1<<1,	/* Switch VCC On  */
	PC_VCC_OFF	= 1<<0,	/* Switch VCC Off */
};

/*	B2_IRQM_MSK 	32 bit	IRQ Moderation Mask */

/*	B0_Y2_SP_ISRC2	32 bit	Special Interrupt Source Reg 2 */
/*	B0_Y2_SP_ISRC3	32 bit	Special Interrupt Source Reg 3 */
/*	B0_Y2_SP_EISR	32 bit	Enter ISR Reg */
/*	B0_Y2_SP_LISR	32 bit	Leave ISR Reg */
enum {
	Y2_IS_HW_ERR	= 1<<31,	/* Interrupt HW Error */
	Y2_IS_STAT_BMU	= 1<<30,	/* Status BMU Interrupt */
	Y2_IS_ASF	= 1<<29,	/* ASF subsystem Interrupt */

	Y2_IS_POLL_CHK	= 1<<27,	/* Check IRQ from polling unit */
	Y2_IS_TWSI_RDY	= 1<<26,	/* IRQ on end of TWSI Tx */
	Y2_IS_IRQ_SW	= 1<<25,	/* SW forced IRQ	*/
	Y2_IS_TIMINT	= 1<<24,	/* IRQ from Timer	*/

	Y2_IS_IRQ_PHY2	= 1<<12,	/* Interrupt from PHY 2 */
	Y2_IS_IRQ_MAC2	= 1<<11,	/* Interrupt from MAC 2 */
	Y2_IS_CHK_RX2	= 1<<10,	/* Descriptor error Rx 2 */
	Y2_IS_CHK_TXS2	= 1<<9,		/* Descriptor error TXS 2 */
	Y2_IS_CHK_TXA2	= 1<<8,		/* Descriptor error TXA 2 */

	Y2_IS_IRQ_PHY1	= 1<<4,		/* Interrupt from PHY 1 */
	Y2_IS_IRQ_MAC1	= 1<<3,		/* Interrupt from MAC 1 */
	Y2_IS_CHK_RX1	= 1<<2,		/* Descriptor error Rx 1 */
	Y2_IS_CHK_TXS1	= 1<<1,		/* Descriptor error TXS 1 */
	Y2_IS_CHK_TXA1	= 1<<0,		/* Descriptor error TXA 1 */

	Y2_IS_BASE	= Y2_IS_HW_ERR | Y2_IS_STAT_BMU |
			  Y2_IS_POLL_CHK | Y2_IS_TWSI_RDY |
			  Y2_IS_IRQ_SW | Y2_IS_TIMINT,
	Y2_IS_PORT_1	= Y2_IS_IRQ_PHY1 | Y2_IS_IRQ_MAC1 |
			  Y2_IS_CHK_RX1 | Y2_IS_CHK_TXA1 | Y2_IS_CHK_TXS1,
	Y2_IS_PORT_2	= Y2_IS_IRQ_PHY2 | Y2_IS_IRQ_MAC2 |
			  Y2_IS_CHK_RX2 | Y2_IS_CHK_TXA2 | Y2_IS_CHK_TXS2,
};

/*	B2_IRQM_HWE_MSK	32 bit	IRQ Moderation HW Error Mask */
enum {
	IS_ERR_MSK	= 0x00003fff,/* 		All Error bits */

	IS_IRQ_TIST_OV	= 1<<13, /* Time Stamp Timer Overflow (YUKON only) */
	IS_IRQ_SENSOR	= 1<<12, /* IRQ from Sensor (YUKON only) */
	IS_IRQ_MST_ERR	= 1<<11, /* IRQ master error detected */
	IS_IRQ_STAT	= 1<<10, /* IRQ status exception */
	IS_NO_STAT_M1	= 1<<9,	/* No Rx Status from MAC 1 */
	IS_NO_STAT_M2	= 1<<8,	/* No Rx Status from MAC 2 */
	IS_NO_TIST_M1	= 1<<7,	/* No Time Stamp from MAC 1 */
	IS_NO_TIST_M2	= 1<<6,	/* No Time Stamp from MAC 2 */
	IS_RAM_RD_PAR	= 1<<5,	/* RAM Read  Parity Error */
	IS_RAM_WR_PAR	= 1<<4,	/* RAM Write Parity Error */
	IS_M1_PAR_ERR	= 1<<3,	/* MAC 1 Parity Error */
	IS_M2_PAR_ERR	= 1<<2,	/* MAC 2 Parity Error */
	IS_R1_PAR_ERR	= 1<<1,	/* Queue R1 Parity Error */
	IS_R2_PAR_ERR	= 1<<0,	/* Queue R2 Parity Error */
};

/* Hardware error interrupt mask for Yukon 2 */
enum {
	Y2_IS_TIST_OV	= 1<<29,/* Time Stamp Timer overflow interrupt */
	Y2_IS_SENSOR	= 1<<28, /* Sensor interrupt */
	Y2_IS_MST_ERR	= 1<<27, /* Master error interrupt */
	Y2_IS_IRQ_STAT	= 1<<26, /* Status exception interrupt */
	Y2_IS_PCI_EXP	= 1<<25, /* PCI-Express interrupt */
	Y2_IS_PCI_NEXP	= 1<<24, /* PCI-Express error similar to PCI error */
						/* Link 2 */
	Y2_IS_PAR_RD2	= 1<<13, /* Read RAM parity error interrupt */
	Y2_IS_PAR_WR2	= 1<<12, /* Write RAM parity error interrupt */
	Y2_IS_PAR_MAC2	= 1<<11, /* MAC hardware fault interrupt */
	Y2_IS_PAR_RX2	= 1<<10, /* Parity Error Rx Queue 2 */
	Y2_IS_TCP_TXS2	= 1<<9, /* TCP length mismatch sync Tx queue IRQ */
	Y2_IS_TCP_TXA2	= 1<<8, /* TCP length mismatch async Tx queue IRQ */
						/* Link 1 */
	Y2_IS_PAR_RD1	= 1<<5, /* Read RAM parity error interrupt */
	Y2_IS_PAR_WR1	= 1<<4, /* Write RAM parity error interrupt */
	Y2_IS_PAR_MAC1	= 1<<3, /* MAC hardware fault interrupt */
	Y2_IS_PAR_RX1	= 1<<2, /* Parity Error Rx Queue 1 */
	Y2_IS_TCP_TXS1	= 1<<1, /* TCP length mismatch sync Tx queue IRQ */
	Y2_IS_TCP_TXA1	= 1<<0, /* TCP length mismatch async Tx queue IRQ */

	Y2_HWE_L1_MASK	= Y2_IS_PAR_RD1 | Y2_IS_PAR_WR1 | Y2_IS_PAR_MAC1 |
			  Y2_IS_PAR_RX1 | Y2_IS_TCP_TXS1| Y2_IS_TCP_TXA1,
	Y2_HWE_L2_MASK	= Y2_IS_PAR_RD2 | Y2_IS_PAR_WR2 | Y2_IS_PAR_MAC2 |
			  Y2_IS_PAR_RX2 | Y2_IS_TCP_TXS2| Y2_IS_TCP_TXA2,

	Y2_HWE_ALL_MASK	= Y2_IS_TIST_OV | Y2_IS_MST_ERR | Y2_IS_IRQ_STAT |
			  Y2_IS_PCI_EXP |
			  Y2_HWE_L1_MASK | Y2_HWE_L2_MASK,
};

/*	B28_DPT_CTRL	 8 bit	Descriptor Poll Timer Ctrl Reg */
enum {
	DPT_START	= 1<<1,
	DPT_STOP	= 1<<0,
};

/*	B2_TST_CTRL1	 8 bit	Test Control Register 1 */
enum {
	TST_FRC_DPERR_MR = 1<<7, /* force DATAPERR on MST RD */
	TST_FRC_DPERR_MW = 1<<6, /* force DATAPERR on MST WR */
	TST_FRC_DPERR_TR = 1<<5, /* force DATAPERR on TRG RD */
	TST_FRC_DPERR_TW = 1<<4, /* force DATAPERR on TRG WR */
	TST_FRC_APERR_M	 = 1<<3, /* force ADDRPERR on MST */
	TST_FRC_APERR_T	 = 1<<2, /* force ADDRPERR on TRG */
	TST_CFG_WRITE_ON = 1<<1, /* Enable  Config Reg WR */
	TST_CFG_WRITE_OFF= 1<<0, /* Disable Config Reg WR */
};

/*	B2_MAC_CFG		 8 bit	MAC Configuration / Chip Revision */
enum {
	CFG_CHIP_R_MSK	  = 0xf<<4,	/* Bit 7.. 4: Chip Revision */
					/* Bit 3.. 2:	reserved */
	CFG_DIS_M2_CLK	  = 1<<1,	/* Disable Clock for 2nd MAC */
	CFG_SNG_MAC	  = 1<<0,	/* MAC Config: 0=2 MACs / 1=1 MAC*/
};

/*	B2_CHIP_ID		 8 bit 	Chip Identification Number */
enum {
	CHIP_ID_GENESIS	   = 0x0a, /* Chip ID for GENESIS */
	CHIP_ID_YUKON	   = 0xb0, /* Chip ID for YUKON */
	CHIP_ID_YUKON_LITE = 0xb1, /* Chip ID for YUKON-Lite (Rev. A1-A3) */
	CHIP_ID_YUKON_LP   = 0xb2, /* Chip ID for YUKON-LP */
	CHIP_ID_YUKON_XL   = 0xb3, /* Chip ID for YUKON-2 XL */
	CHIP_ID_YUKON_EC_U = 0xb4, /* Chip ID for YUKON-2 EC Ultra */
	CHIP_ID_YUKON_EC   = 0xb6, /* Chip ID for YUKON-2 EC */
 	CHIP_ID_YUKON_FE   = 0xb7, /* Chip ID for YUKON-2 FE */

	CHIP_REV_YU_EC_A1    = 0,  /* Chip Rev. for Yukon-EC A1/A0 */
	CHIP_REV_YU_EC_A2    = 1,  /* Chip Rev. for Yukon-EC A2 */
	CHIP_REV_YU_EC_A3    = 2,  /* Chip Rev. for Yukon-EC A3 */
};

/*	B2_Y2_CLK_GATE	 8 bit	Clock Gating (Yukon-2 only) */
enum {
	Y2_STATUS_LNK2_INAC	= 1<<7, /* Status Link 2 inactive (0 = active) */
	Y2_CLK_GAT_LNK2_DIS	= 1<<6, /* Disable clock gating Link 2 */
	Y2_COR_CLK_LNK2_DIS	= 1<<5, /* Disable Core clock Link 2 */
	Y2_PCI_CLK_LNK2_DIS	= 1<<4, /* Disable PCI clock Link 2 */
	Y2_STATUS_LNK1_INAC	= 1<<3, /* Status Link 1 inactive (0 = active) */
	Y2_CLK_GAT_LNK1_DIS	= 1<<2, /* Disable clock gating Link 1 */
	Y2_COR_CLK_LNK1_DIS	= 1<<1, /* Disable Core clock Link 1 */
	Y2_PCI_CLK_LNK1_DIS	= 1<<0, /* Disable PCI clock Link 1 */
};

/*	B2_Y2_HW_RES	8 bit	HW Resources (Yukon-2 only) */
enum {
	CFG_LED_MODE_MSK	= 7<<2,	/* Bit  4.. 2:	LED Mode Mask */
	CFG_LINK_2_AVAIL	= 1<<1,	/* Link 2 available */
	CFG_LINK_1_AVAIL	= 1<<0,	/* Link 1 available */
};
#define CFG_LED_MODE(x)		(((x) & CFG_LED_MODE_MSK) >> 2)
#define CFG_DUAL_MAC_MSK	(CFG_LINK_2_AVAIL | CFG_LINK_1_AVAIL)


/* B2_Y2_CLK_CTRL	32 bit	Clock Frequency Control Register (Yukon-2/EC) */
enum {
	Y2_CLK_DIV_VAL_MSK	= 0xff<<16,/* Bit 23..16: Clock Divisor Value */
#define	Y2_CLK_DIV_VAL(x)	(((x)<<16) & Y2_CLK_DIV_VAL_MSK)
	Y2_CLK_DIV_VAL2_MSK	= 7<<21,   /* Bit 23..21: Clock Divisor Value */
	Y2_CLK_SELECT2_MSK	= 0x1f<<16,/* Bit 20..16: Clock Select */
#define Y2_CLK_DIV_VAL_2(x)	(((x)<<21) & Y2_CLK_DIV_VAL2_MSK)
#define Y2_CLK_SEL_VAL_2(x)	(((x)<<16) & Y2_CLK_SELECT2_MSK)
	Y2_CLK_DIV_ENA		= 1<<1, /* Enable  Core Clock Division */
	Y2_CLK_DIV_DIS		= 1<<0,	/* Disable Core Clock Division */
};

/*	B2_TI_CTRL		 8 bit	Timer control */
/*	B2_IRQM_CTRL	 8 bit	IRQ Moderation Timer Control */
enum {
	TIM_START	= 1<<2,	/* Start Timer */
	TIM_STOP	= 1<<1,	/* Stop  Timer */
	TIM_CLR_IRQ	= 1<<0,	/* Clear Timer IRQ (!IRQM) */
};

/*	B2_TI_TEST		 8 Bit	Timer Test */
/*	B2_IRQM_TEST	 8 bit	IRQ Moderation Timer Test */
/*	B28_DPT_TST		 8 bit	Descriptor Poll Timer Test Reg */
enum {
	TIM_T_ON	= 1<<2,	/* Test mode on */
	TIM_T_OFF	= 1<<1,	/* Test mode off */
	TIM_T_STEP	= 1<<0,	/* Test step */
};

/*	B3_RAM_ADDR		32 bit	RAM Address, to read or write */
					/* Bit 31..19:	reserved */
#define RAM_ADR_RAN	0x0007ffffL	/* Bit 18.. 0:	RAM Address Range */
/* RAM Interface Registers */

/*	B3_RI_CTRL		16 bit	RAM Interface Control Register */
enum {
	RI_CLR_RD_PERR	= 1<<9,	/* Clear IRQ RAM Read Parity Err */
	RI_CLR_WR_PERR	= 1<<8,	/* Clear IRQ RAM Write Parity Err*/

	RI_RST_CLR	= 1<<1,	/* Clear RAM Interface Reset */
	RI_RST_SET	= 1<<0,	/* Set   RAM Interface Reset */
};

#define SK_RI_TO_53	36		/* RAM interface timeout */


/* Port related registers FIFO, and Arbiter */
#define SK_REG(port,reg)	(((port)<<7)+(reg))

/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */
/*	TXA_ITI_INI		32 bit	Tx Arb Interval Timer Init Val */
/*	TXA_ITI_VAL		32 bit	Tx Arb Interval Timer Value */
/*	TXA_LIM_INI		32 bit	Tx Arb Limit Counter Init Val */
/*	TXA_LIM_VAL		32 bit	Tx Arb Limit Counter Value */

#define TXA_MAX_VAL	0x00ffffffUL	/* Bit 23.. 0:	Max TXA Timer/Cnt Val */

/*	TXA_CTRL		 8 bit	Tx Arbiter Control Register */
enum {
	TXA_ENA_FSYNC	= 1<<7,	/* Enable  force of sync Tx queue */
	TXA_DIS_FSYNC	= 1<<6,	/* Disable force of sync Tx queue */
	TXA_ENA_ALLOC	= 1<<5,	/* Enable  alloc of free bandwidth */
	TXA_DIS_ALLOC	= 1<<4,	/* Disable alloc of free bandwidth */
	TXA_START_RC	= 1<<3,	/* Start sync Rate Control */
	TXA_STOP_RC	= 1<<2,	/* Stop  sync Rate Control */
	TXA_ENA_ARB	= 1<<1,	/* Enable  Tx Arbiter */
	TXA_DIS_ARB	= 1<<0,	/* Disable Tx Arbiter */
};

/*
 *	Bank 4 - 5
 */
/* Transmit Arbiter Registers MAC 1 and 2, use SK_REG() to access */
enum {
	TXA_ITI_INI	= 0x0200,/* 32 bit	Tx Arb Interval Timer Init Val*/
	TXA_ITI_VAL	= 0x0204,/* 32 bit	Tx Arb Interval Timer Value */
	TXA_LIM_INI	= 0x0208,/* 32 bit	Tx Arb Limit Counter Init Val */
	TXA_LIM_VAL	= 0x020c,/* 32 bit	Tx Arb Limit Counter Value */
	TXA_CTRL	= 0x0210,/*  8 bit	Tx Arbiter Control Register */
	TXA_TEST	= 0x0211,/*  8 bit	Tx Arbiter Test Register */
	TXA_STAT	= 0x0212,/*  8 bit	Tx Arbiter Status Register */
};


enum {
	B6_EXT_REG	= 0x0300,/* External registers (GENESIS only) */
	B7_CFG_SPC	= 0x0380,/* copy of the Configuration register */
	B8_RQ1_REGS	= 0x0400,/* Receive Queue 1 */
	B8_RQ2_REGS	= 0x0480,/* Receive Queue 2 */
	B8_TS1_REGS	= 0x0600,/* Transmit sync queue 1 */
	B8_TA1_REGS	= 0x0680,/* Transmit async queue 1 */
	B8_TS2_REGS	= 0x0700,/* Transmit sync queue 2 */
	B8_TA2_REGS	= 0x0780,/* Transmit sync queue 2 */
	B16_RAM_REGS	= 0x0800,/* RAM Buffer Registers */
};

/* Queue Register Offsets, use Q_ADDR() to access */
enum {
	B8_Q_REGS = 0x0400, /* base of Queue registers */
	Q_D	= 0x00,	/* 8*32	bit	Current Descriptor */
	Q_DA_L	= 0x20,	/* 32 bit	Current Descriptor Address Low dWord */
	Q_DA_H	= 0x24,	/* 32 bit	Current Descriptor Address High dWord */
	Q_AC_L	= 0x28,	/* 32 bit	Current Address Counter Low dWord */
	Q_AC_H	= 0x2c,	/* 32 bit	Current Address Counter High dWord */
	Q_BC	= 0x30,	/* 32 bit	Current Byte Counter */
	Q_CSR	= 0x34,	/* 32 bit	BMU Control/Status Register */
	Q_F	= 0x38,	/* 32 bit	Flag Register */
	Q_T1	= 0x3c,	/* 32 bit	Test Register 1 */
	Q_T1_TR	= 0x3c,	/*  8 bit	Test Register 1 Transfer SM */
	Q_T1_WR	= 0x3d,	/*  8 bit	Test Register 1 Write Descriptor SM */
	Q_T1_RD	= 0x3e,	/*  8 bit	Test Register 1 Read Descriptor SM */
	Q_T1_SV	= 0x3f,	/*  8 bit	Test Register 1 Supervisor SM */
	Q_T2	= 0x40,	/* 32 bit	Test Register 2	*/
	Q_T3	= 0x44,	/* 32 bit	Test Register 3	*/

/* Yukon-2 */
	Q_DONE	= 0x24,	/* 16 bit	Done Index 		(Yukon-2 only) */
	Q_WM	= 0x40,	/* 16 bit	FIFO Watermark */
	Q_AL	= 0x42,	/*  8 bit	FIFO Alignment */
	Q_RSP	= 0x44,	/* 16 bit	FIFO Read Shadow Pointer */
	Q_RSL	= 0x46,	/*  8 bit	FIFO Read Shadow Level */
	Q_RP	= 0x48,	/*  8 bit	FIFO Read Pointer */
	Q_RL	= 0x4a,	/*  8 bit	FIFO Read Level */
	Q_WP	= 0x4c,	/*  8 bit	FIFO Write Pointer */
	Q_WSP	= 0x4d,	/*  8 bit	FIFO Write Shadow Pointer */
	Q_WL	= 0x4e,	/*  8 bit	FIFO Write Level */
	Q_WSL	= 0x4f,	/*  8 bit	FIFO Write Shadow Level */
};
#define Q_ADDR(reg, offs) (B8_Q_REGS + (reg) + (offs))


/* Queue Prefetch Unit Offsets, use Y2_QADDR() to address (Yukon-2 only)*/
enum {
	Y2_B8_PREF_REGS		= 0x0450,

	PREF_UNIT_CTRL		= 0x00,	/* 32 bit	Control register */
	PREF_UNIT_LAST_IDX	= 0x04,	/* 16 bit	Last Index */
	PREF_UNIT_ADDR_LO	= 0x08,	/* 32 bit	List start addr, low part */
	PREF_UNIT_ADDR_HI	= 0x0c,	/* 32 bit	List start addr, high part*/
	PREF_UNIT_GET_IDX	= 0x10,	/* 16 bit	Get Index */
	PREF_UNIT_PUT_IDX	= 0x14,	/* 16 bit	Put Index */
	PREF_UNIT_FIFO_WP	= 0x20,	/*  8 bit	FIFO write pointer */
	PREF_UNIT_FIFO_RP	= 0x24,	/*  8 bit	FIFO read pointer */
	PREF_UNIT_FIFO_WM	= 0x28,	/*  8 bit	FIFO watermark */
	PREF_UNIT_FIFO_LEV	= 0x2c,	/*  8 bit	FIFO level */

	PREF_UNIT_MASK_IDX	= 0x0fff,
};
#define Y2_QADDR(q,reg)		(Y2_B8_PREF_REGS + (q) + (reg))

/* RAM Buffer Register Offsets */
enum {

	RB_START	= 0x00,/* 32 bit	RAM Buffer Start Address */
	RB_END	= 0x04,/* 32 bit	RAM Buffer End Address */
	RB_WP	= 0x08,/* 32 bit	RAM Buffer Write Pointer */
	RB_RP	= 0x0c,/* 32 bit	RAM Buffer Read Pointer */
	RB_RX_UTPP	= 0x10,/* 32 bit	Rx Upper Threshold, Pause Packet */
	RB_RX_LTPP	= 0x14,/* 32 bit	Rx Lower Threshold, Pause Packet */
	RB_RX_UTHP	= 0x18,/* 32 bit	Rx Upper Threshold, High Prio */
	RB_RX_LTHP	= 0x1c,/* 32 bit	Rx Lower Threshold, High Prio */
	/* 0x10 - 0x1f:	reserved at Tx RAM Buffer Registers */
	RB_PC	= 0x20,/* 32 bit	RAM Buffer Packet Counter */
	RB_LEV	= 0x24,/* 32 bit	RAM Buffer Level Register */
	RB_CTRL	= 0x28,/* 32 bit	RAM Buffer Control Register */
	RB_TST1	= 0x29,/*  8 bit	RAM Buffer Test Register 1 */
	RB_TST2	= 0x2a,/*  8 bit	RAM Buffer Test Register 2 */
};

/* Receive and Transmit Queues */
enum {
	Q_R1	= 0x0000,	/* Receive Queue 1 */
	Q_R2	= 0x0080,	/* Receive Queue 2 */
	Q_XS1	= 0x0200,	/* Synchronous Transmit Queue 1 */
	Q_XA1	= 0x0280,	/* Asynchronous Transmit Queue 1 */
	Q_XS2	= 0x0300,	/* Synchronous Transmit Queue 2 */
	Q_XA2	= 0x0380,	/* Asynchronous Transmit Queue 2 */
};

/* Different PHY Types */
enum {
	PHY_ADDR_MARV	= 0,
};

#define RB_ADDR(offs, queue) (B16_RAM_REGS + (queue) + (offs))


enum {
	LNK_SYNC_INI	= 0x0c30,/* 32 bit	Link Sync Cnt Init Value */
	LNK_SYNC_VAL	= 0x0c34,/* 32 bit	Link Sync Cnt Current Value */
	LNK_SYNC_CTRL	= 0x0c38,/*  8 bit	Link Sync Cnt Control Register */
	LNK_SYNC_TST	= 0x0c39,/*  8 bit	Link Sync Cnt Test Register */

	LNK_LED_REG	= 0x0c3c,/*  8 bit	Link LED Register */

/* Receive GMAC FIFO (YUKON and Yukon-2) */

	RX_GMF_EA	= 0x0c40,/* 32 bit	Rx GMAC FIFO End Address */
	RX_GMF_AF_THR	= 0x0c44,/* 32 bit	Rx GMAC FIFO Almost Full Thresh. */
	RX_GMF_CTRL_T	= 0x0c48,/* 32 bit	Rx GMAC FIFO Control/Test */
	RX_GMF_FL_MSK	= 0x0c4c,/* 32 bit	Rx GMAC FIFO Flush Mask */
	RX_GMF_FL_THR	= 0x0c50,/* 32 bit	Rx GMAC FIFO Flush Threshold */
	RX_GMF_TR_THR	= 0x0c54,/* 32 bit	Rx Truncation Threshold (Yukon-2) */
	RX_GMF_UP_THR	= 0x0c58,/*  8 bit	Rx Upper Pause Thr (Yukon-EC_U) */
	RX_GMF_LP_THR	= 0x0c5a,/*  8 bit	Rx Lower Pause Thr (Yukon-EC_U) */
	RX_GMF_VLAN	= 0x0c5c,/* 32 bit	Rx VLAN Type Register (Yukon-2) */
	RX_GMF_WP	= 0x0c60,/* 32 bit	Rx GMAC FIFO Write Pointer */

	RX_GMF_WLEV	= 0x0c68,/* 32 bit	Rx GMAC FIFO Write Level */

	RX_GMF_RP	= 0x0c70,/* 32 bit	Rx GMAC FIFO Read Pointer */

	RX_GMF_RLEV	= 0x0c78,/* 32 bit	Rx GMAC FIFO Read Level */
};


/*	Q_BC			32 bit	Current Byte Counter */

/* BMU Control Status Registers */
/*	B0_R1_CSR		32 bit	BMU Ctrl/Stat Rx Queue 1 */
/*	B0_R2_CSR		32 bit	BMU Ctrl/Stat Rx Queue 2 */
/*	B0_XA1_CSR		32 bit	BMU Ctrl/Stat Sync Tx Queue 1 */
/*	B0_XS1_CSR		32 bit	BMU Ctrl/Stat Async Tx Queue 1 */
/*	B0_XA2_CSR		32 bit	BMU Ctrl/Stat Sync Tx Queue 2 */
/*	B0_XS2_CSR		32 bit	BMU Ctrl/Stat Async Tx Queue 2 */
/*	Q_CSR			32 bit	BMU Control/Status Register */

/* Rx BMU Control / Status Registers (Yukon-2) */
enum {
	BMU_IDLE	= 1<<31, /* BMU Idle State */
	BMU_RX_TCP_PKT	= 1<<30, /* Rx TCP Packet (when RSS Hash enabled) */
	BMU_RX_IP_PKT	= 1<<29, /* Rx IP  Packet (when RSS Hash enabled) */

	BMU_ENA_RX_RSS_HASH = 1<<15, /* Enable  Rx RSS Hash */
	BMU_DIS_RX_RSS_HASH = 1<<14, /* Disable Rx RSS Hash */
	BMU_ENA_RX_CHKSUM = 1<<13, /* Enable  Rx TCP/IP Checksum Check */
	BMU_DIS_RX_CHKSUM = 1<<12, /* Disable Rx TCP/IP Checksum Check */
	BMU_CLR_IRQ_PAR	= 1<<11, /* Clear IRQ on Parity errors (Rx) */
	BMU_CLR_IRQ_TCP	= 1<<11, /* Clear IRQ on TCP segment. error (Tx) */
	BMU_CLR_IRQ_CHK	= 1<<10, /* Clear IRQ Check */
	BMU_STOP	= 1<<9, /* Stop  Rx/Tx Queue */
	BMU_START	= 1<<8, /* Start Rx/Tx Queue */
	BMU_FIFO_OP_ON	= 1<<7, /* FIFO Operational On */
	BMU_FIFO_OP_OFF	= 1<<6, /* FIFO Operational Off */
	BMU_FIFO_ENA	= 1<<5, /* Enable FIFO */
	BMU_FIFO_RST	= 1<<4, /* Reset  FIFO */
	BMU_OP_ON	= 1<<3, /* BMU Operational On */
	BMU_OP_OFF	= 1<<2, /* BMU Operational Off */
	BMU_RST_CLR	= 1<<1, /* Clear BMU Reset (Enable) */
	BMU_RST_SET	= 1<<0, /* Set   BMU Reset */

	BMU_CLR_RESET	= BMU_FIFO_RST | BMU_OP_OFF | BMU_RST_CLR,
	BMU_OPER_INIT	= BMU_CLR_IRQ_PAR | BMU_CLR_IRQ_CHK | BMU_START |
			  BMU_FIFO_ENA | BMU_OP_ON,

	BMU_WM_DEFAULT = 0x600,
};

/* Tx BMU Control / Status Registers (Yukon-2) */
								/* Bit 31: same as for Rx */
enum {
	BMU_TX_IPIDINCR_ON	= 1<<13, /* Enable  IP ID Increment */
	BMU_TX_IPIDINCR_OFF	= 1<<12, /* Disable IP ID Increment */
	BMU_TX_CLR_IRQ_TCP	= 1<<11, /* Clear IRQ on TCP segment length mismatch */
};

/* Queue Prefetch Unit Offsets, use Y2_QADDR() to address (Yukon-2 only)*/
/* PREF_UNIT_CTRL	32 bit	Prefetch Control register */
enum {
	PREF_UNIT_OP_ON		= 1<<3,	/* prefetch unit operational */
	PREF_UNIT_OP_OFF	= 1<<2,	/* prefetch unit not operational */
	PREF_UNIT_RST_CLR	= 1<<1,	/* Clear Prefetch Unit Reset */
	PREF_UNIT_RST_SET	= 1<<0,	/* Set   Prefetch Unit Reset */
};

/* RAM Buffer Register Offsets, use RB_ADDR(Queue, Offs) to access */
/*	RB_START		32 bit	RAM Buffer Start Address */
/*	RB_END			32 bit	RAM Buffer End Address */
/*	RB_WP			32 bit	RAM Buffer Write Pointer */
/*	RB_RP			32 bit	RAM Buffer Read Pointer */
/*	RB_RX_UTPP		32 bit	Rx Upper Threshold, Pause Pack */
/*	RB_RX_LTPP		32 bit	Rx Lower Threshold, Pause Pack */
/*	RB_RX_UTHP		32 bit	Rx Upper Threshold, High Prio */
/*	RB_RX_LTHP		32 bit	Rx Lower Threshold, High Prio */
/*	RB_PC			32 bit	RAM Buffer Packet Counter */
/*	RB_LEV			32 bit	RAM Buffer Level Register */

#define RB_MSK	0x0007ffff	/* Bit 18.. 0:	RAM Buffer Pointer Bits */
/*	RB_TST2			 8 bit	RAM Buffer Test Register 2 */
/*	RB_TST1			 8 bit	RAM Buffer Test Register 1 */

/*	RB_CTRL			 8 bit	RAM Buffer Control Register */
enum {
	RB_ENA_STFWD	= 1<<5,	/* Enable  Store & Forward */
	RB_DIS_STFWD	= 1<<4,	/* Disable Store & Forward */
	RB_ENA_OP_MD	= 1<<3,	/* Enable  Operation Mode */
	RB_DIS_OP_MD	= 1<<2,	/* Disable Operation Mode */
	RB_RST_CLR	= 1<<1,	/* Clear RAM Buf STM Reset */
	RB_RST_SET	= 1<<0,	/* Set   RAM Buf STM Reset */
};


/* Transmit GMAC FIFO (YUKON only) */
enum {
	TX_GMF_EA	= 0x0d40,/* 32 bit	Tx GMAC FIFO End Address */
	TX_GMF_AE_THR	= 0x0d44,/* 32 bit	Tx GMAC FIFO Almost Empty Thresh.*/
	TX_GMF_CTRL_T	= 0x0d48,/* 32 bit	Tx GMAC FIFO Control/Test */

	TX_GMF_WP	= 0x0d60,/* 32 bit 	Tx GMAC FIFO Write Pointer */
	TX_GMF_WSP	= 0x0d64,/* 32 bit 	Tx GMAC FIFO Write Shadow Ptr. */
	TX_GMF_WLEV	= 0x0d68,/* 32 bit 	Tx GMAC FIFO Write Level */

	TX_GMF_RP	= 0x0d70,/* 32 bit 	Tx GMAC FIFO Read Pointer */
	TX_GMF_RSTP	= 0x0d74,/* 32 bit 	Tx GMAC FIFO Restart Pointer */
	TX_GMF_RLEV	= 0x0d78,/* 32 bit 	Tx GMAC FIFO Read Level */
};

/* Descriptor Poll Timer Registers */
enum {
	B28_DPT_INI	= 0x0e00,/* 24 bit	Descriptor Poll Timer Init Val */
	B28_DPT_VAL	= 0x0e04,/* 24 bit	Descriptor Poll Timer Curr Val */
	B28_DPT_CTRL	= 0x0e08,/*  8 bit	Descriptor Poll Timer Ctrl Reg */

	B28_DPT_TST	= 0x0e0a,/*  8 bit	Descriptor Poll Timer Test Reg */
};

/* Time Stamp Timer Registers (YUKON only) */
enum {
	GMAC_TI_ST_VAL	= 0x0e14,/* 32 bit	Time Stamp Timer Curr Val */
	GMAC_TI_ST_CTRL	= 0x0e18,/*  8 bit	Time Stamp Timer Ctrl Reg */
	GMAC_TI_ST_TST	= 0x0e1a,/*  8 bit	Time Stamp Timer Test Reg */
};

/* Polling Unit Registers (Yukon-2 only) */
enum {
	POLL_CTRL	= 0x0e20, /* 32 bit	Polling Unit Control Reg */
	POLL_LAST_IDX	= 0x0e24,/* 16 bit	Polling Unit List Last Index */

	POLL_LIST_ADDR_LO= 0x0e28,/* 32 bit	Poll. List Start Addr (low) */
	POLL_LIST_ADDR_HI= 0x0e2c,/* 32 bit	Poll. List Start Addr (high) */
};

/* ASF Subsystem Registers (Yukon-2 only) */
enum {
	B28_Y2_SMB_CONFIG  = 0x0e40,/* 32 bit	ASF SMBus Config Register */
	B28_Y2_SMB_CSD_REG = 0x0e44,/* 32 bit	ASF SMB Control/Status/Data */
	B28_Y2_ASF_IRQ_V_BASE=0x0e60,/* 32 bit	ASF IRQ Vector Base */

	B28_Y2_ASF_STAT_CMD= 0x0e68,/* 32 bit	ASF Status and Command Reg */
	B28_Y2_ASF_HOST_COM= 0x0e6c,/* 32 bit	ASF Host Communication Reg */
	B28_Y2_DATA_REG_1  = 0x0e70,/* 32 bit	ASF/Host Data Register 1 */
	B28_Y2_DATA_REG_2  = 0x0e74,/* 32 bit	ASF/Host Data Register 2 */
	B28_Y2_DATA_REG_3  = 0x0e78,/* 32 bit	ASF/Host Data Register 3 */
	B28_Y2_DATA_REG_4  = 0x0e7c,/* 32 bit	ASF/Host Data Register 4 */
};

/* Status BMU Registers (Yukon-2 only)*/
enum {
	STAT_CTRL	= 0x0e80,/* 32 bit	Status BMU Control Reg */
	STAT_LAST_IDX	= 0x0e84,/* 16 bit	Status BMU Last Index */

	STAT_LIST_ADDR_LO= 0x0e88,/* 32 bit	Status List Start Addr (low) */
	STAT_LIST_ADDR_HI= 0x0e8c,/* 32 bit	Status List Start Addr (high) */
	STAT_TXA1_RIDX	= 0x0e90,/* 16 bit	Status TxA1 Report Index Reg */
	STAT_TXS1_RIDX	= 0x0e92,/* 16 bit	Status TxS1 Report Index Reg */
	STAT_TXA2_RIDX	= 0x0e94,/* 16 bit	Status TxA2 Report Index Reg */
	STAT_TXS2_RIDX	= 0x0e96,/* 16 bit	Status TxS2 Report Index Reg */
	STAT_TX_IDX_TH	= 0x0e98,/* 16 bit	Status Tx Index Threshold Reg */
	STAT_PUT_IDX	= 0x0e9c,/* 16 bit	Status Put Index Reg */

/* FIFO Control/Status Registers (Yukon-2 only)*/
	STAT_FIFO_WP	= 0x0ea0,/*  8 bit	Status FIFO Write Pointer Reg */
	STAT_FIFO_RP	= 0x0ea4,/*  8 bit	Status FIFO Read Pointer Reg */
	STAT_FIFO_RSP	= 0x0ea6,/*  8 bit	Status FIFO Read Shadow Ptr */
	STAT_FIFO_LEVEL	= 0x0ea8,/*  8 bit	Status FIFO Level Reg */
	STAT_FIFO_SHLVL	= 0x0eaa,/*  8 bit	Status FIFO Shadow Level Reg */
	STAT_FIFO_WM	= 0x0eac,/*  8 bit	Status FIFO Watermark Reg */
	STAT_FIFO_ISR_WM= 0x0ead,/*  8 bit	Status FIFO ISR Watermark Reg */

/* Level and ISR Timer Registers (Yukon-2 only)*/
	STAT_LEV_TIMER_INI= 0x0eb0,/* 32 bit	Level Timer Init. Value Reg */
	STAT_LEV_TIMER_CNT= 0x0eb4,/* 32 bit	Level Timer Counter Reg */
	STAT_LEV_TIMER_CTRL= 0x0eb8,/*  8 bit	Level Timer Control Reg */
	STAT_LEV_TIMER_TEST= 0x0eb9,/*  8 bit	Level Timer Test Reg */
	STAT_TX_TIMER_INI  = 0x0ec0,/* 32 bit	Tx Timer Init. Value Reg */
	STAT_TX_TIMER_CNT  = 0x0ec4,/* 32 bit	Tx Timer Counter Reg */
	STAT_TX_TIMER_CTRL = 0x0ec8,/*  8 bit	Tx Timer Control Reg */
	STAT_TX_TIMER_TEST = 0x0ec9,/*  8 bit	Tx Timer Test Reg */
	STAT_ISR_TIMER_INI = 0x0ed0,/* 32 bit	ISR Timer Init. Value Reg */
	STAT_ISR_TIMER_CNT = 0x0ed4,/* 32 bit	ISR Timer Counter Reg */
	STAT_ISR_TIMER_CTRL= 0x0ed8,/*  8 bit	ISR Timer Control Reg */
	STAT_ISR_TIMER_TEST= 0x0ed9,/*  8 bit	ISR Timer Test Reg */
};

enum {
	LINKLED_OFF 	     = 0x01,
	LINKLED_ON  	     = 0x02,
	LINKLED_LINKSYNC_OFF = 0x04,
	LINKLED_LINKSYNC_ON  = 0x08,
	LINKLED_BLINK_OFF    = 0x10,
	LINKLED_BLINK_ON     = 0x20,
};

/* GMAC and GPHY Control Registers (YUKON only) */
enum {
	GMAC_CTRL	= 0x0f00,/* 32 bit	GMAC Control Reg */
	GPHY_CTRL	= 0x0f04,/* 32 bit	GPHY Control Reg */
	GMAC_IRQ_SRC	= 0x0f08,/*  8 bit	GMAC Interrupt Source Reg */
	GMAC_IRQ_MSK	= 0x0f0c,/*  8 bit	GMAC Interrupt Mask Reg */
	GMAC_LINK_CTRL	= 0x0f10,/* 16 bit	Link Control Reg */

/* Wake-up Frame Pattern Match Control Registers (YUKON only) */

	WOL_REG_OFFS	= 0x20,/* HW-Bug: Address is + 0x20 against spec. */

	WOL_CTRL_STAT	= 0x0f20,/* 16 bit	WOL Control/Status Reg */
	WOL_MATCH_CTL	= 0x0f22,/*  8 bit	WOL Match Control Reg */
	WOL_MATCH_RES	= 0x0f23,/*  8 bit	WOL Match Result Reg */
	WOL_MAC_ADDR	= 0x0f24,/* 32 bit	WOL MAC Address */
	WOL_PATT_PME	= 0x0f2a,/*  8 bit	WOL PME Match Enable (Yukon-2) */
	WOL_PATT_ASFM	= 0x0f2b,/*  8 bit	WOL ASF Match Enable (Yukon-2) */
	WOL_PATT_RPTR	= 0x0f2c,/*  8 bit	WOL Pattern Read Pointer */

/* WOL Pattern Length Registers (YUKON only) */

	WOL_PATT_LEN_LO	= 0x0f30,/* 32 bit	WOL Pattern Length 3..0 */
	WOL_PATT_LEN_HI	= 0x0f34,/* 24 bit	WOL Pattern Length 6..4 */

/* WOL Pattern Counter Registers (YUKON only) */


	WOL_PATT_CNT_0	= 0x0f38,/* 32 bit	WOL Pattern Counter 3..0 */
	WOL_PATT_CNT_4	= 0x0f3c,/* 24 bit	WOL Pattern Counter 6..4 */
};

enum {
	WOL_PATT_RAM_1	= 0x1000,/*  WOL Pattern RAM Link 1 */
	WOL_PATT_RAM_2	= 0x1400,/*  WOL Pattern RAM Link 2 */
};

enum {
	BASE_GMAC_1	= 0x2800,/* GMAC 1 registers */
	BASE_GMAC_2	= 0x3800,/* GMAC 2 registers */
};

/*
 * Marvel-PHY Registers, indirect addressed over GMAC
 */
enum {
	PHY_MARV_CTRL		= 0x00,/* 16 bit r/w	PHY Control Register */
	PHY_MARV_STAT		= 0x01,/* 16 bit r/o	PHY Status Register */
	PHY_MARV_ID0		= 0x02,/* 16 bit r/o	PHY ID0 Register */
	PHY_MARV_ID1		= 0x03,/* 16 bit r/o	PHY ID1 Register */
	PHY_MARV_AUNE_ADV	= 0x04,/* 16 bit r/w	Auto-Neg. Advertisement */
	PHY_MARV_AUNE_LP	= 0x05,/* 16 bit r/o	Link Part Ability Reg */
	PHY_MARV_AUNE_EXP	= 0x06,/* 16 bit r/o	Auto-Neg. Expansion Reg */
	PHY_MARV_NEPG		= 0x07,/* 16 bit r/w	Next Page Register */
	PHY_MARV_NEPG_LP	= 0x08,/* 16 bit r/o	Next Page Link Partner */
	/* Marvel-specific registers */
	PHY_MARV_1000T_CTRL	= 0x09,/* 16 bit r/w	1000Base-T Control Reg */
	PHY_MARV_1000T_STAT	= 0x0a,/* 16 bit r/o	1000Base-T Status Reg */
	PHY_MARV_EXT_STAT	= 0x0f,/* 16 bit r/o	Extended Status Reg */
	PHY_MARV_PHY_CTRL	= 0x10,/* 16 bit r/w	PHY Specific Ctrl Reg */
	PHY_MARV_PHY_STAT	= 0x11,/* 16 bit r/o	PHY Specific Stat Reg */
	PHY_MARV_INT_MASK	= 0x12,/* 16 bit r/w	Interrupt Mask Reg */
	PHY_MARV_INT_STAT	= 0x13,/* 16 bit r/o	Interrupt Status Reg */
	PHY_MARV_EXT_CTRL	= 0x14,/* 16 bit r/w	Ext. PHY Specific Ctrl */
	PHY_MARV_RXE_CNT	= 0x15,/* 16 bit r/w	Receive Error Counter */
	PHY_MARV_EXT_ADR	= 0x16,/* 16 bit r/w	Ext. Ad. for Cable Diag. */
	PHY_MARV_PORT_IRQ	= 0x17,/* 16 bit r/o	Port 0 IRQ (88E1111 only) */
	PHY_MARV_LED_CTRL	= 0x18,/* 16 bit r/w	LED Control Reg */
	PHY_MARV_LED_OVER	= 0x19,/* 16 bit r/w	Manual LED Override Reg */
	PHY_MARV_EXT_CTRL_2	= 0x1a,/* 16 bit r/w	Ext. PHY Specific Ctrl 2 */
	PHY_MARV_EXT_P_STAT	= 0x1b,/* 16 bit r/w	Ext. PHY Spec. Stat Reg */
	PHY_MARV_CABLE_DIAG	= 0x1c,/* 16 bit r/o	Cable Diagnostic Reg */
	PHY_MARV_PAGE_ADDR	= 0x1d,/* 16 bit r/w	Extended Page Address Reg */
	PHY_MARV_PAGE_DATA	= 0x1e,/* 16 bit r/w	Extended Page Data Reg */

/* for 10/100 Fast Ethernet PHY (88E3082 only) */
	PHY_MARV_FE_LED_PAR	= 0x16,/* 16 bit r/w	LED Parallel Select Reg. */
	PHY_MARV_FE_LED_SER	= 0x17,/* 16 bit r/w	LED Stream Select S. LED */
	PHY_MARV_FE_VCT_TX	= 0x1a,/* 16 bit r/w	VCT Reg. for TXP/N Pins */
	PHY_MARV_FE_VCT_RX	= 0x1b,/* 16 bit r/o	VCT Reg. for RXP/N Pins */
	PHY_MARV_FE_SPEC_2	= 0x1c,/* 16 bit r/w	Specific Control Reg. 2 */
};

enum {
	PHY_CT_RESET	= 1<<15, /* Bit 15: (sc)	clear all PHY related regs */
	PHY_CT_LOOP	= 1<<14, /* Bit 14:	enable Loopback over PHY */
	PHY_CT_SPS_LSB	= 1<<13, /* Bit 13:	Speed select, lower bit */
	PHY_CT_ANE	= 1<<12, /* Bit 12:	Auto-Negotiation Enabled */
	PHY_CT_PDOWN	= 1<<11, /* Bit 11:	Power Down Mode */
	PHY_CT_ISOL	= 1<<10, /* Bit 10:	Isolate Mode */
	PHY_CT_RE_CFG	= 1<<9, /* Bit  9:	(sc) Restart Auto-Negotiation */
	PHY_CT_DUP_MD	= 1<<8, /* Bit  8:	Duplex Mode */
	PHY_CT_COL_TST	= 1<<7, /* Bit  7:	Collision Test enabled */
	PHY_CT_SPS_MSB	= 1<<6, /* Bit  6:	Speed select, upper bit */
};

enum {
	PHY_CT_SP1000	= PHY_CT_SPS_MSB, /* enable speed of 1000 Mbps */
	PHY_CT_SP100	= PHY_CT_SPS_LSB, /* enable speed of  100 Mbps */
	PHY_CT_SP10	= 0,		  /* enable speed of   10 Mbps */
};

enum {
	PHY_ST_EXT_ST	= 1<<8, /* Bit  8:	Extended Status Present */

	PHY_ST_PRE_SUP	= 1<<6, /* Bit  6:	Preamble Suppression */
	PHY_ST_AN_OVER	= 1<<5, /* Bit  5:	Auto-Negotiation Over */
	PHY_ST_REM_FLT	= 1<<4, /* Bit  4:	Remote Fault Condition Occured */
	PHY_ST_AN_CAP	= 1<<3, /* Bit  3:	Auto-Negotiation Capability */
	PHY_ST_LSYNC	= 1<<2, /* Bit  2:	Link Synchronized */
	PHY_ST_JAB_DET	= 1<<1, /* Bit  1:	Jabber Detected */
	PHY_ST_EXT_REG	= 1<<0, /* Bit  0:	Extended Register available */
};

enum {
	PHY_I1_OUI_MSK	= 0x3f<<10, /* Bit 15..10:	Organization Unique ID */
	PHY_I1_MOD_NUM	= 0x3f<<4, /* Bit  9.. 4:	Model Number */
	PHY_I1_REV_MSK	= 0xf, /* Bit  3.. 0:	Revision Number */
};

/* different Marvell PHY Ids */
enum {
	PHY_MARV_ID0_VAL= 0x0141, /* Marvell Unique Identifier */

	PHY_BCOM_ID1_A1	= 0x6041,
	PHY_BCOM_ID1_B2	= 0x6043,
	PHY_BCOM_ID1_C0	= 0x6044,
	PHY_BCOM_ID1_C5	= 0x6047,

	PHY_MARV_ID1_B0	= 0x0C23, /* Yukon (PHY 88E1011) */
	PHY_MARV_ID1_B2	= 0x0C25, /* Yukon-Plus (PHY 88E1011) */
	PHY_MARV_ID1_C2	= 0x0CC2, /* Yukon-EC (PHY 88E1111) */
	PHY_MARV_ID1_Y2	= 0x0C91, /* Yukon-2 (PHY 88E1112) */
};

/* Advertisement register bits */
enum {
	PHY_AN_NXT_PG	= 1<<15, /* Bit 15:	Request Next Page */
	PHY_AN_ACK	= 1<<14, /* Bit 14:	(ro) Acknowledge Received */
	PHY_AN_RF	= 1<<13, /* Bit 13:	Remote Fault Bits */

	PHY_AN_PAUSE_ASYM = 1<<11,/* Bit 11:	Try for asymmetric */
	PHY_AN_PAUSE_CAP = 1<<10, /* Bit 10:	Try for pause */
	PHY_AN_100BASE4	= 1<<9, /* Bit 9:	Try for 100mbps 4k packets */
	PHY_AN_100FULL	= 1<<8, /* Bit 8:	Try for 100mbps full-duplex */
	PHY_AN_100HALF	= 1<<7, /* Bit 7:	Try for 100mbps half-duplex */
	PHY_AN_10FULL	= 1<<6, /* Bit 6:	Try for 10mbps full-duplex */
	PHY_AN_10HALF	= 1<<5, /* Bit 5:	Try for 10mbps half-duplex */
	PHY_AN_CSMA	= 1<<0, /* Bit 0:	Only selector supported */
	PHY_AN_SEL	= 0x1f, /* Bit 4..0:	Selector Field, 00001=Ethernet*/
	PHY_AN_FULL	= PHY_AN_100FULL | PHY_AN_10FULL | PHY_AN_CSMA,
	PHY_AN_ALL	= PHY_AN_10HALF | PHY_AN_10FULL |
		  	  PHY_AN_100HALF | PHY_AN_100FULL,
};

/*****  PHY_BCOM_1000T_STAT	16 bit r/o	1000Base-T Status Reg *****/
/*****  PHY_MARV_1000T_STAT	16 bit r/o	1000Base-T Status Reg *****/
enum {
	PHY_B_1000S_MSF	= 1<<15, /* Bit 15:	Master/Slave Fault */
	PHY_B_1000S_MSR	= 1<<14, /* Bit 14:	Master/Slave Result */
	PHY_B_1000S_LRS	= 1<<13, /* Bit 13:	Local Receiver Status */
	PHY_B_1000S_RRS	= 1<<12, /* Bit 12:	Remote Receiver Status */
	PHY_B_1000S_LP_FD	= 1<<11, /* Bit 11:	Link Partner can FD */
	PHY_B_1000S_LP_HD	= 1<<10, /* Bit 10:	Link Partner can HD */
									/* Bit  9..8:	reserved */
	PHY_B_1000S_IEC	= 0xff, /* Bit  7..0:	Idle Error Count */
};

/** Marvell-Specific */
enum {
	PHY_M_AN_NXT_PG	= 1<<15, /* Request Next Page */
	PHY_M_AN_ACK	= 1<<14, /* (ro)	Acknowledge Received */
	PHY_M_AN_RF	= 1<<13, /* Remote Fault */

	PHY_M_AN_ASP	= 1<<11, /* Asymmetric Pause */
	PHY_M_AN_PC	= 1<<10, /* MAC Pause implemented */
	PHY_M_AN_100_T4	= 1<<9, /* Not cap. 100Base-T4 (always 0) */
	PHY_M_AN_100_FD	= 1<<8, /* Advertise 100Base-TX Full Duplex */
	PHY_M_AN_100_HD	= 1<<7, /* Advertise 100Base-TX Half Duplex */
	PHY_M_AN_10_FD	= 1<<6, /* Advertise 10Base-TX Full Duplex */
	PHY_M_AN_10_HD	= 1<<5, /* Advertise 10Base-TX Half Duplex */
	PHY_M_AN_SEL_MSK =0x1f<<4,	/* Bit  4.. 0: Selector Field Mask */
};

/* special defines for FIBER (88E1011S only) */
enum {
	PHY_M_AN_ASP_X	= 1<<8, /* Asymmetric Pause */
	PHY_M_AN_PC_X	= 1<<7, /* MAC Pause implemented */
	PHY_M_AN_1000X_AHD	= 1<<6, /* Advertise 10000Base-X Half Duplex */
	PHY_M_AN_1000X_AFD	= 1<<5, /* Advertise 10000Base-X Full Duplex */
};

/* Pause Bits (PHY_M_AN_ASP_X and PHY_M_AN_PC_X) encoding */
enum {
	PHY_M_P_NO_PAUSE_X	= 0<<7,/* Bit  8.. 7:	no Pause Mode */
	PHY_M_P_SYM_MD_X	= 1<<7, /* Bit  8.. 7:	symmetric Pause Mode */
	PHY_M_P_ASYM_MD_X	= 2<<7,/* Bit  8.. 7:	asymmetric Pause Mode */
	PHY_M_P_BOTH_MD_X	= 3<<7,/* Bit  8.. 7:	both Pause Mode */
};

/*****  PHY_MARV_1000T_CTRL	16 bit r/w	1000Base-T Control Reg *****/
enum {
	PHY_M_1000C_TEST	= 7<<13,/* Bit 15..13:	Test Modes */
	PHY_M_1000C_MSE	= 1<<12, /* Manual Master/Slave Enable */
	PHY_M_1000C_MSC	= 1<<11, /* M/S Configuration (1=Master) */
	PHY_M_1000C_MPD	= 1<<10, /* Multi-Port Device */
	PHY_M_1000C_AFD	= 1<<9, /* Advertise Full Duplex */
	PHY_M_1000C_AHD	= 1<<8, /* Advertise Half Duplex */
};

/*****  PHY_MARV_PHY_CTRL	16 bit r/w	PHY Specific Ctrl Reg *****/
enum {
	PHY_M_PC_TX_FFD_MSK	= 3<<14,/* Bit 15..14: Tx FIFO Depth Mask */
	PHY_M_PC_RX_FFD_MSK	= 3<<12,/* Bit 13..12: Rx FIFO Depth Mask */
	PHY_M_PC_ASS_CRS_TX	= 1<<11, /* Assert CRS on Transmit */
	PHY_M_PC_FL_GOOD	= 1<<10, /* Force Link Good */
	PHY_M_PC_EN_DET_MSK	= 3<<8,/* Bit  9.. 8: Energy Detect Mask */
	PHY_M_PC_ENA_EXT_D	= 1<<7, /* Enable Ext. Distance (10BT) */
	PHY_M_PC_MDIX_MSK	= 3<<5,/* Bit  6.. 5: MDI/MDIX Config. Mask */
	PHY_M_PC_DIS_125CLK	= 1<<4, /* Disable 125 CLK */
	PHY_M_PC_MAC_POW_UP	= 1<<3, /* MAC Power up */
	PHY_M_PC_SQE_T_ENA	= 1<<2, /* SQE Test Enabled */
	PHY_M_PC_POL_R_DIS	= 1<<1, /* Polarity Reversal Disabled */
	PHY_M_PC_DIS_JABBER	= 1<<0, /* Disable Jabber */
};

enum {
	PHY_M_PC_EN_DET		= 2<<8,	/* Energy Detect (Mode 1) */
	PHY_M_PC_EN_DET_PLUS	= 3<<8, /* Energy Detect Plus (Mode 2) */
};

#define PHY_M_PC_MDI_XMODE(x)	(((x)<<5) & PHY_M_PC_MDIX_MSK)

enum {
	PHY_M_PC_MAN_MDI	= 0, /* 00 = Manual MDI configuration */
	PHY_M_PC_MAN_MDIX	= 1, /* 01 = Manual MDIX configuration */
	PHY_M_PC_ENA_AUTO	= 3, /* 11 = Enable Automatic Crossover */
};

/* for 10/100 Fast Ethernet PHY (88E3082 only) */
enum {
	PHY_M_PC_ENA_DTE_DT	= 1<<15, /* Enable Data Terminal Equ. (DTE) Detect */
	PHY_M_PC_ENA_ENE_DT	= 1<<14, /* Enable Energy Detect (sense & pulse) */
	PHY_M_PC_DIS_NLP_CK	= 1<<13, /* Disable Normal Link Puls (NLP) Check */
	PHY_M_PC_ENA_LIP_NP	= 1<<12, /* Enable Link Partner Next Page Reg. */
	PHY_M_PC_DIS_NLP_GN	= 1<<11, /* Disable Normal Link Puls Generation */

	PHY_M_PC_DIS_SCRAMB	= 1<<9, /* Disable Scrambler */
	PHY_M_PC_DIS_FEFI	= 1<<8, /* Disable Far End Fault Indic. (FEFI) */

	PHY_M_PC_SH_TP_SEL	= 1<<6, /* Shielded Twisted Pair Select */
	PHY_M_PC_RX_FD_MSK	= 3<<2,/* Bit  3.. 2: Rx FIFO Depth Mask */
};

/*****  PHY_MARV_PHY_STAT	16 bit r/o	PHY Specific Status Reg *****/
enum {
	PHY_M_PS_SPEED_MSK	= 3<<14, /* Bit 15..14: Speed Mask */
	PHY_M_PS_SPEED_1000	= 1<<15, /*		10 = 1000 Mbps */
	PHY_M_PS_SPEED_100	= 1<<14, /*		01 =  100 Mbps */
	PHY_M_PS_SPEED_10	= 0,	 /*		00 =   10 Mbps */
	PHY_M_PS_FULL_DUP	= 1<<13, /* Full Duplex */
	PHY_M_PS_PAGE_REC	= 1<<12, /* Page Received */
	PHY_M_PS_SPDUP_RES	= 1<<11, /* Speed & Duplex Resolved */
	PHY_M_PS_LINK_UP	= 1<<10, /* Link Up */
	PHY_M_PS_CABLE_MSK	= 7<<7,  /* Bit  9.. 7: Cable Length Mask */
	PHY_M_PS_MDI_X_STAT	= 1<<6,  /* MDI Crossover Stat (1=MDIX) */
	PHY_M_PS_DOWNS_STAT	= 1<<5,  /* Downshift Status (1=downsh.) */
	PHY_M_PS_ENDET_STAT	= 1<<4,  /* Energy Detect Status (1=act) */
	PHY_M_PS_TX_P_EN	= 1<<3,  /* Tx Pause Enabled */
	PHY_M_PS_RX_P_EN	= 1<<2,  /* Rx Pause Enabled */
	PHY_M_PS_POL_REV	= 1<<1,  /* Polarity Reversed */
	PHY_M_PS_JABBER		= 1<<0,  /* Jabber */
};

#define PHY_M_PS_PAUSE_MSK	(PHY_M_PS_TX_P_EN | PHY_M_PS_RX_P_EN)

/* for 10/100 Fast Ethernet PHY (88E3082 only) */
enum {
	PHY_M_PS_DTE_DETECT	= 1<<15, /* Data Terminal Equipment (DTE) Detected */
	PHY_M_PS_RES_SPEED	= 1<<14, /* Resolved Speed (1=100 Mbps, 0=10 Mbps */
};

enum {
	PHY_M_IS_AN_ERROR	= 1<<15, /* Auto-Negotiation Error */
	PHY_M_IS_LSP_CHANGE	= 1<<14, /* Link Speed Changed */
	PHY_M_IS_DUP_CHANGE	= 1<<13, /* Duplex Mode Changed */
	PHY_M_IS_AN_PR		= 1<<12, /* Page Received */
	PHY_M_IS_AN_COMPL	= 1<<11, /* Auto-Negotiation Completed */
	PHY_M_IS_LST_CHANGE	= 1<<10, /* Link Status Changed */
	PHY_M_IS_SYMB_ERROR	= 1<<9, /* Symbol Error */
	PHY_M_IS_FALSE_CARR	= 1<<8, /* False Carrier */
	PHY_M_IS_FIFO_ERROR	= 1<<7, /* FIFO Overflow/Underrun Error */
	PHY_M_IS_MDI_CHANGE	= 1<<6, /* MDI Crossover Changed */
	PHY_M_IS_DOWNSH_DET	= 1<<5, /* Downshift Detected */
	PHY_M_IS_END_CHANGE	= 1<<4, /* Energy Detect Changed */

	PHY_M_IS_DTE_CHANGE	= 1<<2, /* DTE Power Det. Status Changed */
	PHY_M_IS_POL_CHANGE	= 1<<1, /* Polarity Changed */
	PHY_M_IS_JABBER		= 1<<0, /* Jabber */

	PHY_M_DEF_MSK		= PHY_M_IS_LSP_CHANGE | PHY_M_IS_LST_CHANGE
				 | PHY_M_IS_FIFO_ERROR,
	PHY_M_AN_MSK	       = PHY_M_IS_AN_ERROR | PHY_M_IS_AN_COMPL,
};


/*****  PHY_MARV_EXT_CTRL	16 bit r/w	Ext. PHY Specific Ctrl *****/
enum {
	PHY_M_EC_ENA_BC_EXT = 1<<15, /* Enable Block Carr. Ext. (88E1111 only) */
	PHY_M_EC_ENA_LIN_LB = 1<<14, /* Enable Line Loopback (88E1111 only) */

	PHY_M_EC_DIS_LINK_P = 1<<12, /* Disable Link Pulses (88E1111 only) */
	PHY_M_EC_M_DSC_MSK  = 3<<10, /* Bit 11..10:	Master Downshift Counter */
					/* (88E1011 only) */
	PHY_M_EC_S_DSC_MSK  = 3<<8,/* Bit  9.. 8:	Slave  Downshift Counter */
				       /* (88E1011 only) */
	PHY_M_EC_M_DSC_MSK2 = 7<<9,/* Bit 11.. 9:	Master Downshift Counter */
					/* (88E1111 only) */
	PHY_M_EC_DOWN_S_ENA = 1<<8, /* Downshift Enable (88E1111 only) */
					/* !!! Errata in spec. (1 = disable) */
	PHY_M_EC_RX_TIM_CT  = 1<<7, /* RGMII Rx Timing Control*/
	PHY_M_EC_MAC_S_MSK  = 7<<4,/* Bit  6.. 4:	Def. MAC interface speed */
	PHY_M_EC_FIB_AN_ENA = 1<<3, /* Fiber Auto-Neg. Enable (88E1011S only) */
	PHY_M_EC_DTE_D_ENA  = 1<<2, /* DTE Detect Enable (88E1111 only) */
	PHY_M_EC_TX_TIM_CT  = 1<<1, /* RGMII Tx Timing Control */
	PHY_M_EC_TRANS_DIS  = 1<<0, /* Transmitter Disable (88E1111 only) */};

#define PHY_M_EC_M_DSC(x)	((x)<<10 & PHY_M_EC_M_DSC_MSK)
					/* 00=1x; 01=2x; 10=3x; 11=4x */
#define PHY_M_EC_S_DSC(x)	((x)<<8 & PHY_M_EC_S_DSC_MSK)
					/* 00=dis; 01=1x; 10=2x; 11=3x */
#define PHY_M_EC_DSC_2(x)	((x)<<9 & PHY_M_EC_M_DSC_MSK2)
					/* 000=1x; 001=2x; 010=3x; 011=4x */
#define PHY_M_EC_MAC_S(x)	((x)<<4 & PHY_M_EC_MAC_S_MSK)
					/* 01X=0; 110=2.5; 111=25 (MHz) */

/* for Yukon-2 Gigabit Ethernet PHY (88E1112 only) */
enum {
	PHY_M_PC_DIS_LINK_Pa	= 1<<15,/* Disable Link Pulses */
	PHY_M_PC_DSC_MSK	= 7<<12,/* Bit 14..12:	Downshift Counter */
	PHY_M_PC_DOWN_S_ENA	= 1<<11,/* Downshift Enable */
};
/* !!! Errata in spec. (1 = disable) */

#define PHY_M_PC_DSC(x)			(((x)<<12) & PHY_M_PC_DSC_MSK)
											/* 100=5x; 101=6x; 110=7x; 111=8x */
enum {
	MAC_TX_CLK_0_MHZ	= 2,
	MAC_TX_CLK_2_5_MHZ	= 6,
	MAC_TX_CLK_25_MHZ 	= 7,
};

/*****  PHY_MARV_LED_CTRL	16 bit r/w	LED Control Reg *****/
enum {
	PHY_M_LEDC_DIS_LED	= 1<<15, /* Disable LED */
	PHY_M_LEDC_PULS_MSK	= 7<<12,/* Bit 14..12: Pulse Stretch Mask */
	PHY_M_LEDC_F_INT	= 1<<11, /* Force Interrupt */
	PHY_M_LEDC_BL_R_MSK	= 7<<8,/* Bit 10.. 8: Blink Rate Mask */
	PHY_M_LEDC_DP_C_LSB	= 1<<7, /* Duplex Control (LSB, 88E1111 only) */
	PHY_M_LEDC_TX_C_LSB	= 1<<6, /* Tx Control (LSB, 88E1111 only) */
	PHY_M_LEDC_LK_C_MSK	= 7<<3,/* Bit  5.. 3: Link Control Mask */
					/* (88E1111 only) */
};

enum {
	PHY_M_LEDC_LINK_MSK	= 3<<3,/* Bit  4.. 3: Link Control Mask */
									/* (88E1011 only) */
	PHY_M_LEDC_DP_CTRL	= 1<<2, /* Duplex Control */
	PHY_M_LEDC_DP_C_MSB	= 1<<2, /* Duplex Control (MSB, 88E1111 only) */
	PHY_M_LEDC_RX_CTRL	= 1<<1, /* Rx Activity / Link */
	PHY_M_LEDC_TX_CTRL	= 1<<0, /* Tx Activity / Link */
	PHY_M_LEDC_TX_C_MSB	= 1<<0, /* Tx Control (MSB, 88E1111 only) */
};

#define PHY_M_LED_PULS_DUR(x)	(((x)<<12) & PHY_M_LEDC_PULS_MSK)

/*****  PHY_MARV_PHY_STAT (page 3)16 bit r/w	Polarity Control Reg. *****/
enum {
	PHY_M_POLC_LS1M_MSK	= 0xf<<12, /* Bit 15..12: LOS,STAT1 Mix % Mask */
	PHY_M_POLC_IS0M_MSK	= 0xf<<8,  /* Bit 11.. 8: INIT,STAT0 Mix % Mask */
	PHY_M_POLC_LOS_MSK	= 0x3<<6,  /* Bit  7.. 6: LOS Pol. Ctrl. Mask */
	PHY_M_POLC_INIT_MSK	= 0x3<<4,  /* Bit  5.. 4: INIT Pol. Ctrl. Mask */
	PHY_M_POLC_STA1_MSK	= 0x3<<2,  /* Bit  3.. 2: STAT1 Pol. Ctrl. Mask */
	PHY_M_POLC_STA0_MSK	= 0x3,     /* Bit  1.. 0: STAT0 Pol. Ctrl. Mask */
};

#define PHY_M_POLC_LS1_P_MIX(x)	(((x)<<12) & PHY_M_POLC_LS1M_MSK)
#define PHY_M_POLC_IS0_P_MIX(x)	(((x)<<8) & PHY_M_POLC_IS0M_MSK)
#define PHY_M_POLC_LOS_CTRL(x)	(((x)<<6) & PHY_M_POLC_LOS_MSK)
#define PHY_M_POLC_INIT_CTRL(x)	(((x)<<4) & PHY_M_POLC_INIT_MSK)
#define PHY_M_POLC_STA1_CTRL(x)	(((x)<<2) & PHY_M_POLC_STA1_MSK)
#define PHY_M_POLC_STA0_CTRL(x)	(((x)<<0) & PHY_M_POLC_STA0_MSK)

enum {
	PULS_NO_STR	= 0,/* no pulse stretching */
	PULS_21MS	= 1,/* 21 ms to 42 ms */
	PULS_42MS	= 2,/* 42 ms to 84 ms */
	PULS_84MS	= 3,/* 84 ms to 170 ms */
	PULS_170MS	= 4,/* 170 ms to 340 ms */
	PULS_340MS	= 5,/* 340 ms to 670 ms */
	PULS_670MS	= 6,/* 670 ms to 1.3 s */
	PULS_1300MS	= 7,/* 1.3 s to 2.7 s */
};

#define PHY_M_LED_BLINK_RT(x)	(((x)<<8) & PHY_M_LEDC_BL_R_MSK)

enum {
	BLINK_42MS	= 0,/* 42 ms */
	BLINK_84MS	= 1,/* 84 ms */
	BLINK_170MS	= 2,/* 170 ms */
	BLINK_340MS	= 3,/* 340 ms */
	BLINK_670MS	= 4,/* 670 ms */
};

/*****  PHY_MARV_LED_OVER	16 bit r/w	Manual LED Override Reg *****/
#define PHY_M_LED_MO_SGMII(x)	((x)<<14) /* Bit 15..14:  SGMII AN Timer */
										/* Bit 13..12:	reserved */
#define PHY_M_LED_MO_DUP(x)	((x)<<10) /* Bit 11..10:  Duplex */
#define PHY_M_LED_MO_10(x)	((x)<<8) /* Bit  9.. 8:  Link 10 */
#define PHY_M_LED_MO_100(x)	((x)<<6) /* Bit  7.. 6:  Link 100 */
#define PHY_M_LED_MO_1000(x)	((x)<<4) /* Bit  5.. 4:  Link 1000 */
#define PHY_M_LED_MO_RX(x)	((x)<<2) /* Bit  3.. 2:  Rx */
#define PHY_M_LED_MO_TX(x)	((x)<<0) /* Bit  1.. 0:  Tx */

enum {
	MO_LED_NORM	= 0,
	MO_LED_BLINK	= 1,
	MO_LED_OFF	= 2,
	MO_LED_ON	= 3,
};

/*****  PHY_MARV_EXT_CTRL_2	16 bit r/w	Ext. PHY Specific Ctrl 2 *****/
enum {
	PHY_M_EC2_FI_IMPED	= 1<<6, /* Fiber Input  Impedance */
	PHY_M_EC2_FO_IMPED	= 1<<5, /* Fiber Output Impedance */
	PHY_M_EC2_FO_M_CLK	= 1<<4, /* Fiber Mode Clock Enable */
	PHY_M_EC2_FO_BOOST	= 1<<3, /* Fiber Output Boost */
	PHY_M_EC2_FO_AM_MSK	= 7,/* Bit  2.. 0:	Fiber Output Amplitude */
};

/*****  PHY_MARV_EXT_P_STAT 16 bit r/w	Ext. PHY Specific Status *****/
enum {
	PHY_M_FC_AUTO_SEL	= 1<<15, /* Fiber/Copper Auto Sel. Dis. */
	PHY_M_FC_AN_REG_ACC	= 1<<14, /* Fiber/Copper AN Reg. Access */
	PHY_M_FC_RESOLUTION	= 1<<13, /* Fiber/Copper Resolution */
	PHY_M_SER_IF_AN_BP	= 1<<12, /* Ser. IF AN Bypass Enable */
	PHY_M_SER_IF_BP_ST	= 1<<11, /* Ser. IF AN Bypass Status */
	PHY_M_IRQ_POLARITY	= 1<<10, /* IRQ polarity */
	PHY_M_DIS_AUT_MED	= 1<<9, /* Disable Aut. Medium Reg. Selection */
	/* (88E1111 only) */

	PHY_M_UNDOC1		= 1<<7, /* undocumented bit !! */
	PHY_M_DTE_POW_STAT	= 1<<4, /* DTE Power Status (88E1111 only) */
	PHY_M_MODE_MASK	= 0xf, /* Bit  3.. 0: copy of HWCFG MODE[3:0] */
};

/* for 10/100 Fast Ethernet PHY (88E3082 only) */
/*****  PHY_MARV_FE_LED_PAR		16 bit r/w	LED Parallel Select Reg. *****/
									/* Bit 15..12: reserved (used internally) */
enum {
	PHY_M_FELP_LED2_MSK = 0xf<<8,	/* Bit 11.. 8: LED2 Mask (LINK) */
	PHY_M_FELP_LED1_MSK = 0xf<<4,	/* Bit  7.. 4: LED1 Mask (ACT) */
	PHY_M_FELP_LED0_MSK = 0xf, /* Bit  3.. 0: LED0 Mask (SPEED) */
};

#define PHY_M_FELP_LED2_CTRL(x)	(((x)<<8) & PHY_M_FELP_LED2_MSK)
#define PHY_M_FELP_LED1_CTRL(x)	(((x)<<4) & PHY_M_FELP_LED1_MSK)
#define PHY_M_FELP_LED0_CTRL(x)	(((x)<<0) & PHY_M_FELP_LED0_MSK)

enum {
	LED_PAR_CTRL_COLX	= 0x00,
	LED_PAR_CTRL_ERROR	= 0x01,
	LED_PAR_CTRL_DUPLEX	= 0x02,
	LED_PAR_CTRL_DP_COL	= 0x03,
	LED_PAR_CTRL_SPEED	= 0x04,
	LED_PAR_CTRL_LINK	= 0x05,
	LED_PAR_CTRL_TX		= 0x06,
	LED_PAR_CTRL_RX		= 0x07,
	LED_PAR_CTRL_ACT	= 0x08,
	LED_PAR_CTRL_LNK_RX	= 0x09,
	LED_PAR_CTRL_LNK_AC	= 0x0a,
	LED_PAR_CTRL_ACT_BL	= 0x0b,
	LED_PAR_CTRL_TX_BL	= 0x0c,
	LED_PAR_CTRL_RX_BL	= 0x0d,
	LED_PAR_CTRL_COL_BL	= 0x0e,
	LED_PAR_CTRL_INACT	= 0x0f
};

/*****,PHY_MARV_FE_SPEC_2		16 bit r/w	Specific Control Reg. 2 *****/
enum {
	PHY_M_FESC_DIS_WAIT	= 1<<2, /* Disable TDR Waiting Period */
	PHY_M_FESC_ENA_MCLK	= 1<<1, /* Enable MAC Rx Clock in sleep mode */
	PHY_M_FESC_SEL_CL_A	= 1<<0, /* Select Class A driver (100B-TX) */
};

/* for Yukon-2 Gigabit Ethernet PHY (88E1112 only) */
/*****  PHY_MARV_PHY_CTRL (page 2)		16 bit r/w	MAC Specific Ctrl *****/
enum {
	PHY_M_MAC_MD_MSK	= 7<<7, /* Bit  9.. 7: Mode Select Mask */
	PHY_M_MAC_MD_AUTO	= 3,/* Auto Copper/1000Base-X */
	PHY_M_MAC_MD_COPPER	= 5,/* Copper only */
	PHY_M_MAC_MD_1000BX	= 7,/* 1000Base-X only */
};
#define PHY_M_MAC_MODE_SEL(x)	(((x)<<7) & PHY_M_MAC_MD_MSK)

/*****  PHY_MARV_PHY_CTRL (page 3)		16 bit r/w	LED Control Reg. *****/
enum {
	PHY_M_LEDC_LOS_MSK	= 0xf<<12,/* Bit 15..12: LOS LED Ctrl. Mask */
	PHY_M_LEDC_INIT_MSK	= 0xf<<8, /* Bit 11.. 8: INIT LED Ctrl. Mask */
	PHY_M_LEDC_STA1_MSK	= 0xf<<4,/* Bit  7.. 4: STAT1 LED Ctrl. Mask */
	PHY_M_LEDC_STA0_MSK	= 0xf, /* Bit  3.. 0: STAT0 LED Ctrl. Mask */
};

#define PHY_M_LEDC_LOS_CTRL(x)	(((x)<<12) & PHY_M_LEDC_LOS_MSK)
#define PHY_M_LEDC_INIT_CTRL(x)	(((x)<<8) & PHY_M_LEDC_INIT_MSK)
#define PHY_M_LEDC_STA1_CTRL(x)	(((x)<<4) & PHY_M_LEDC_STA1_MSK)
#define PHY_M_LEDC_STA0_CTRL(x)	(((x)<<0) & PHY_M_LEDC_STA0_MSK)

/* GMAC registers  */
/* Port Registers */
enum {
	GM_GP_STAT	= 0x0000,	/* 16 bit r/o	General Purpose Status */
	GM_GP_CTRL	= 0x0004,	/* 16 bit r/w	General Purpose Control */
	GM_TX_CTRL	= 0x0008,	/* 16 bit r/w	Transmit Control Reg. */
	GM_RX_CTRL	= 0x000c,	/* 16 bit r/w	Receive Control Reg. */
	GM_TX_FLOW_CTRL	= 0x0010,	/* 16 bit r/w	Transmit Flow-Control */
	GM_TX_PARAM	= 0x0014,	/* 16 bit r/w	Transmit Parameter Reg. */
	GM_SERIAL_MODE	= 0x0018,	/* 16 bit r/w	Serial Mode Register */
/* Source Address Registers */
	GM_SRC_ADDR_1L	= 0x001c,	/* 16 bit r/w	Source Address 1 (low) */
	GM_SRC_ADDR_1M	= 0x0020,	/* 16 bit r/w	Source Address 1 (middle) */
	GM_SRC_ADDR_1H	= 0x0024,	/* 16 bit r/w	Source Address 1 (high) */
	GM_SRC_ADDR_2L	= 0x0028,	/* 16 bit r/w	Source Address 2 (low) */
	GM_SRC_ADDR_2M	= 0x002c,	/* 16 bit r/w	Source Address 2 (middle) */
	GM_SRC_ADDR_2H	= 0x0030,	/* 16 bit r/w	Source Address 2 (high) */

/* Multicast Address Hash Registers */
	GM_MC_ADDR_H1	= 0x0034,	/* 16 bit r/w	Multicast Address Hash 1 */
	GM_MC_ADDR_H2	= 0x0038,	/* 16 bit r/w	Multicast Address Hash 2 */
	GM_MC_ADDR_H3	= 0x003c,	/* 16 bit r/w	Multicast Address Hash 3 */
	GM_MC_ADDR_H4	= 0x0040,	/* 16 bit r/w	Multicast Address Hash 4 */

/* Interrupt Source Registers */
	GM_TX_IRQ_SRC	= 0x0044,	/* 16 bit r/o	Tx Overflow IRQ Source */
	GM_RX_IRQ_SRC	= 0x0048,	/* 16 bit r/o	Rx Overflow IRQ Source */
	GM_TR_IRQ_SRC	= 0x004c,	/* 16 bit r/o	Tx/Rx Over. IRQ Source */

/* Interrupt Mask Registers */
	GM_TX_IRQ_MSK	= 0x0050,	/* 16 bit r/w	Tx Overflow IRQ Mask */
	GM_RX_IRQ_MSK	= 0x0054,	/* 16 bit r/w	Rx Overflow IRQ Mask */
	GM_TR_IRQ_MSK	= 0x0058,	/* 16 bit r/w	Tx/Rx Over. IRQ Mask */

/* Serial Management Interface (SMI) Registers */
	GM_SMI_CTRL	= 0x0080,	/* 16 bit r/w	SMI Control Register */
	GM_SMI_DATA	= 0x0084,	/* 16 bit r/w	SMI Data Register */
	GM_PHY_ADDR	= 0x0088,	/* 16 bit r/w	GPHY Address Register */
};

/* MIB Counters */
#define GM_MIB_CNT_BASE	0x0100		/* Base Address of MIB Counters */
#define GM_MIB_CNT_SIZE	44		/* Number of MIB Counters */

/*
 * MIB Counters base address definitions (low word) -
 * use offset 4 for access to high word	(32 bit r/o)
 */
enum {
	GM_RXF_UC_OK  = GM_MIB_CNT_BASE + 0,	/* Unicast Frames Received OK */
	GM_RXF_BC_OK	= GM_MIB_CNT_BASE + 8,	/* Broadcast Frames Received OK */
	GM_RXF_MPAUSE	= GM_MIB_CNT_BASE + 16,	/* Pause MAC Ctrl Frames Received */
	GM_RXF_MC_OK	= GM_MIB_CNT_BASE + 24,	/* Multicast Frames Received OK */
	GM_RXF_FCS_ERR	= GM_MIB_CNT_BASE + 32,	/* Rx Frame Check Seq. Error */
	/* GM_MIB_CNT_BASE + 40:	reserved */
	GM_RXO_OK_LO	= GM_MIB_CNT_BASE + 48,	/* Octets Received OK Low */
	GM_RXO_OK_HI	= GM_MIB_CNT_BASE + 56,	/* Octets Received OK High */
	GM_RXO_ERR_LO	= GM_MIB_CNT_BASE + 64,	/* Octets Received Invalid Low */
	GM_RXO_ERR_HI	= GM_MIB_CNT_BASE + 72,	/* Octets Received Invalid High */
	GM_RXF_SHT	= GM_MIB_CNT_BASE + 80,	/* Frames <64 Byte Received OK */
	GM_RXE_FRAG	= GM_MIB_CNT_BASE + 88,	/* Frames <64 Byte Received with FCS Err */
	GM_RXF_64B	= GM_MIB_CNT_BASE + 96,	/* 64 Byte Rx Frame */
	GM_RXF_127B	= GM_MIB_CNT_BASE + 104,	/* 65-127 Byte Rx Frame */
	GM_RXF_255B	= GM_MIB_CNT_BASE + 112,	/* 128-255 Byte Rx Frame */
	GM_RXF_511B	= GM_MIB_CNT_BASE + 120,	/* 256-511 Byte Rx Frame */
	GM_RXF_1023B	= GM_MIB_CNT_BASE + 128,	/* 512-1023 Byte Rx Frame */
	GM_RXF_1518B	= GM_MIB_CNT_BASE + 136,	/* 1024-1518 Byte Rx Frame */
	GM_RXF_MAX_SZ	= GM_MIB_CNT_BASE + 144,	/* 1519-MaxSize Byte Rx Frame */
	GM_RXF_LNG_ERR	= GM_MIB_CNT_BASE + 152,	/* Rx Frame too Long Error */
	GM_RXF_JAB_PKT	= GM_MIB_CNT_BASE + 160,	/* Rx Jabber Packet Frame */
	/* GM_MIB_CNT_BASE + 168:	reserved */
	GM_RXE_FIFO_OV	= GM_MIB_CNT_BASE + 176,	/* Rx FIFO overflow Event */
	/* GM_MIB_CNT_BASE + 184:	reserved */
	GM_TXF_UC_OK	= GM_MIB_CNT_BASE + 192,	/* Unicast Frames Xmitted OK */
	GM_TXF_BC_OK	= GM_MIB_CNT_BASE + 200,	/* Broadcast Frames Xmitted OK */
	GM_TXF_MPAUSE	= GM_MIB_CNT_BASE + 208,	/* Pause MAC Ctrl Frames Xmitted */
	GM_TXF_MC_OK	= GM_MIB_CNT_BASE + 216,	/* Multicast Frames Xmitted OK */
	GM_TXO_OK_LO	= GM_MIB_CNT_BASE + 224,	/* Octets Transmitted OK Low */
	GM_TXO_OK_HI	= GM_MIB_CNT_BASE + 232,	/* Octets Transmitted OK High */
	GM_TXF_64B	= GM_MIB_CNT_BASE + 240,	/* 64 Byte Tx Frame */
	GM_TXF_127B	= GM_MIB_CNT_BASE + 248,	/* 65-127 Byte Tx Frame */
	GM_TXF_255B	= GM_MIB_CNT_BASE + 256,	/* 128-255 Byte Tx Frame */
	GM_TXF_511B	= GM_MIB_CNT_BASE + 264,	/* 256-511 Byte Tx Frame */
	GM_TXF_1023B	= GM_MIB_CNT_BASE + 272,	/* 512-1023 Byte Tx Frame */
	GM_TXF_1518B	= GM_MIB_CNT_BASE + 280,	/* 1024-1518 Byte Tx Frame */
	GM_TXF_MAX_SZ	= GM_MIB_CNT_BASE + 288,	/* 1519-MaxSize Byte Tx Frame */

	GM_TXF_COL	= GM_MIB_CNT_BASE + 304,	/* Tx Collision */
	GM_TXF_LAT_COL	= GM_MIB_CNT_BASE + 312,	/* Tx Late Collision */
	GM_TXF_ABO_COL	= GM_MIB_CNT_BASE + 320,	/* Tx aborted due to Exces. Col. */
	GM_TXF_MUL_COL	= GM_MIB_CNT_BASE + 328,	/* Tx Multiple Collision */
	GM_TXF_SNG_COL	= GM_MIB_CNT_BASE + 336,	/* Tx Single Collision */
	GM_TXE_FIFO_UR	= GM_MIB_CNT_BASE + 344,	/* Tx FIFO Underrun Event */
};

/* GMAC Bit Definitions */
/*	GM_GP_STAT	16 bit r/o	General Purpose Status Register */
enum {
	GM_GPSR_SPEED		= 1<<15, /* Bit 15:	Port Speed (1 = 100 Mbps) */
	GM_GPSR_DUPLEX		= 1<<14, /* Bit 14:	Duplex Mode (1 = Full) */
	GM_GPSR_FC_TX_DIS	= 1<<13, /* Bit 13:	Tx Flow-Control Mode Disabled */
	GM_GPSR_LINK_UP		= 1<<12, /* Bit 12:	Link Up Status */
	GM_GPSR_PAUSE		= 1<<11, /* Bit 11:	Pause State */
	GM_GPSR_TX_ACTIVE	= 1<<10, /* Bit 10:	Tx in Progress */
	GM_GPSR_EXC_COL		= 1<<9,	/* Bit  9:	Excessive Collisions Occured */
	GM_GPSR_LAT_COL		= 1<<8,	/* Bit  8:	Late Collisions Occured */

	GM_GPSR_PHY_ST_CH	= 1<<5,	/* Bit  5:	PHY Status Change */
	GM_GPSR_GIG_SPEED	= 1<<4,	/* Bit  4:	Gigabit Speed (1 = 1000 Mbps) */
	GM_GPSR_PART_MODE	= 1<<3,	/* Bit  3:	Partition mode */
	GM_GPSR_FC_RX_DIS	= 1<<2,	/* Bit  2:	Rx Flow-Control Mode Disabled */
	GM_GPSR_PROM_EN		= 1<<1,	/* Bit  1:	Promiscuous Mode Enabled */
};

/*	GM_GP_CTRL	16 bit r/w	General Purpose Control Register */
enum {
	GM_GPCR_PROM_ENA	= 1<<14,	/* Bit 14:	Enable Promiscuous Mode */
	GM_GPCR_FC_TX_DIS	= 1<<13, /* Bit 13:	Disable Tx Flow-Control Mode */
	GM_GPCR_TX_ENA		= 1<<12, /* Bit 12:	Enable Transmit */
	GM_GPCR_RX_ENA		= 1<<11, /* Bit 11:	Enable Receive */
	GM_GPCR_BURST_ENA	= 1<<10, /* Bit 10:	Enable Burst Mode */
	GM_GPCR_LOOP_ENA	= 1<<9,	/* Bit  9:	Enable MAC Loopback Mode */
	GM_GPCR_PART_ENA	= 1<<8,	/* Bit  8:	Enable Partition Mode */
	GM_GPCR_GIGS_ENA	= 1<<7,	/* Bit  7:	Gigabit Speed (1000 Mbps) */
	GM_GPCR_FL_PASS		= 1<<6,	/* Bit  6:	Force Link Pass */
	GM_GPCR_DUP_FULL	= 1<<5,	/* Bit  5:	Full Duplex Mode */
	GM_GPCR_FC_RX_DIS	= 1<<4,	/* Bit  4:	Disable Rx Flow-Control Mode */
	GM_GPCR_SPEED_100	= 1<<3,   /* Bit  3:	Port Speed 100 Mbps */
	GM_GPCR_AU_DUP_DIS	= 1<<2,	/* Bit  2:	Disable Auto-Update Duplex */
	GM_GPCR_AU_FCT_DIS	= 1<<1,	/* Bit  1:	Disable Auto-Update Flow-C. */
	GM_GPCR_AU_SPD_DIS	= 1<<0,	/* Bit  0:	Disable Auto-Update Speed */
};

#define GM_GPCR_SPEED_1000	(GM_GPCR_GIGS_ENA | GM_GPCR_SPEED_100)
#define GM_GPCR_AU_ALL_DIS	(GM_GPCR_AU_DUP_DIS | GM_GPCR_AU_FCT_DIS|GM_GPCR_AU_SPD_DIS)

/*	GM_TX_CTRL			16 bit r/w	Transmit Control Register */
enum {
	GM_TXCR_FORCE_JAM	= 1<<15, /* Bit 15:	Force Jam / Flow-Control */
	GM_TXCR_CRC_DIS		= 1<<14, /* Bit 14:	Disable insertion of CRC */
	GM_TXCR_PAD_DIS		= 1<<13, /* Bit 13:	Disable padding of packets */
	GM_TXCR_COL_THR_MSK	= 1<<10, /* Bit 12..10:	Collision Threshold */
};

#define TX_COL_THR(x)		(((x)<<10) & GM_TXCR_COL_THR_MSK)
#define TX_COL_DEF		0x04

/*	GM_RX_CTRL			16 bit r/w	Receive Control Register */
enum {
	GM_RXCR_UCF_ENA	= 1<<15, /* Bit 15:	Enable Unicast filtering */
	GM_RXCR_MCF_ENA	= 1<<14, /* Bit 14:	Enable Multicast filtering */
	GM_RXCR_CRC_DIS	= 1<<13, /* Bit 13:	Remove 4-byte CRC */
	GM_RXCR_PASS_FC	= 1<<12, /* Bit 12:	Pass FC packets to FIFO */
};

/*	GM_TX_PARAM		16 bit r/w	Transmit Parameter Register */
enum {
	GM_TXPA_JAMLEN_MSK	= 0x03<<14,	/* Bit 15..14:	Jam Length */
	GM_TXPA_JAMIPG_MSK	= 0x1f<<9,	/* Bit 13..9:	Jam IPG */
	GM_TXPA_JAMDAT_MSK	= 0x1f<<4,	/* Bit  8..4:	IPG Jam to Data */
	GM_TXPA_BO_LIM_MSK	= 0x0f,		/* Bit  3.. 0: Backoff Limit Mask */

	TX_JAM_LEN_DEF		= 0x03,
	TX_JAM_IPG_DEF		= 0x0b,
	TX_IPG_JAM_DEF		= 0x1c,
	TX_BOF_LIM_DEF		= 0x04,
};

#define TX_JAM_LEN_VAL(x)	(((x)<<14) & GM_TXPA_JAMLEN_MSK)
#define TX_JAM_IPG_VAL(x)	(((x)<<9)  & GM_TXPA_JAMIPG_MSK)
#define TX_IPG_JAM_DATA(x)	(((x)<<4)  & GM_TXPA_JAMDAT_MSK)
#define TX_BACK_OFF_LIM(x)	((x) & GM_TXPA_BO_LIM_MSK)


/*	GM_SERIAL_MODE			16 bit r/w	Serial Mode Register */
enum {
	GM_SMOD_DATABL_MSK	= 0x1f<<11, /* Bit 15..11:	Data Blinder (r/o) */
	GM_SMOD_LIMIT_4		= 1<<10, /* Bit 10:	4 consecutive Tx trials */
	GM_SMOD_VLAN_ENA	= 1<<9,	/* Bit  9:	Enable VLAN  (Max. Frame Len) */
	GM_SMOD_JUMBO_ENA	= 1<<8,	/* Bit  8:	Enable Jumbo (Max. Frame Len) */
	 GM_SMOD_IPG_MSK	= 0x1f	/* Bit 4..0:	Inter-Packet Gap (IPG) */
};

#define DATA_BLIND_VAL(x)	(((x)<<11) & GM_SMOD_DATABL_MSK)
#define DATA_BLIND_DEF		0x04

#define IPG_DATA_VAL(x)		(x & GM_SMOD_IPG_MSK)
#define IPG_DATA_DEF		0x1e

/*	GM_SMI_CTRL			16 bit r/w	SMI Control Register */
enum {
	GM_SMI_CT_PHY_A_MSK	= 0x1f<<11,/* Bit 15..11:	PHY Device Address */
	GM_SMI_CT_REG_A_MSK	= 0x1f<<6,/* Bit 10.. 6:	PHY Register Address */
	GM_SMI_CT_OP_RD		= 1<<5,	/* Bit  5:	OpCode Read (0=Write)*/
	GM_SMI_CT_RD_VAL	= 1<<4,	/* Bit  4:	Read Valid (Read completed) */
	GM_SMI_CT_BUSY		= 1<<3,	/* Bit  3:	Busy (Operation in progress) */
};

#define GM_SMI_CT_PHY_AD(x)	(((x)<<11) & GM_SMI_CT_PHY_A_MSK)
#define GM_SMI_CT_REG_AD(x)	(((x)<<6) & GM_SMI_CT_REG_A_MSK)

/*	GM_PHY_ADDR				16 bit r/w	GPHY Address Register */
enum {
	GM_PAR_MIB_CLR	= 1<<5,	/* Bit  5:	Set MIB Clear Counter Mode */
	GM_PAR_MIB_TST	= 1<<4,	/* Bit  4:	MIB Load Counter (Test Mode) */
};

/* Receive Frame Status Encoding */
enum {
	GMR_FS_LEN	= 0xffff<<16, /* Bit 31..16:	Rx Frame Length */
	GMR_FS_VLAN	= 1<<13, /* VLAN Packet */
	GMR_FS_JABBER	= 1<<12, /* Jabber Packet */
	GMR_FS_UN_SIZE	= 1<<11, /* Undersize Packet */
	GMR_FS_MC	= 1<<10, /* Multicast Packet */
	GMR_FS_BC	= 1<<9,  /* Broadcast Packet */
	GMR_FS_RX_OK	= 1<<8,  /* Receive OK (Good Packet) */
	GMR_FS_GOOD_FC	= 1<<7,  /* Good Flow-Control Packet */
	GMR_FS_BAD_FC	= 1<<6,  /* Bad  Flow-Control Packet */
	GMR_FS_MII_ERR	= 1<<5,  /* MII Error */
	GMR_FS_LONG_ERR	= 1<<4,  /* Too Long Packet */
	GMR_FS_FRAGMENT	= 1<<3,  /* Fragment */

	GMR_FS_CRC_ERR	= 1<<1,  /* CRC Error */
	GMR_FS_RX_FF_OV	= 1<<0,  /* Rx FIFO Overflow */

	GMR_FS_ANY_ERR	= GMR_FS_RX_FF_OV | GMR_FS_CRC_ERR |
			  GMR_FS_FRAGMENT | GMR_FS_LONG_ERR |
		  	  GMR_FS_MII_ERR | GMR_FS_BAD_FC | GMR_FS_GOOD_FC |
			  GMR_FS_UN_SIZE | GMR_FS_JABBER,
};

/*	RX_GMF_CTRL_T	32 bit	Rx GMAC FIFO Control/Test */
enum {
	RX_TRUNC_ON	= 1<<27,  	/* enable  packet truncation */
	RX_TRUNC_OFF	= 1<<26, 	/* disable packet truncation */
	RX_VLAN_STRIP_ON = 1<<25,	/* enable  VLAN stripping */
	RX_VLAN_STRIP_OFF = 1<<24,	/* disable VLAN stripping */

	GMF_WP_TST_ON	= 1<<14,	/* Write Pointer Test On */
	GMF_WP_TST_OFF	= 1<<13,	/* Write Pointer Test Off */
	GMF_WP_STEP	= 1<<12,	/* Write Pointer Step/Increment */

	GMF_RP_TST_ON	= 1<<10,	/* Read Pointer Test On */
	GMF_RP_TST_OFF	= 1<<9,		/* Read Pointer Test Off */
	GMF_RP_STEP	= 1<<8,		/* Read Pointer Step/Increment */
	GMF_RX_F_FL_ON	= 1<<7,		/* Rx FIFO Flush Mode On */
	GMF_RX_F_FL_OFF	= 1<<6,		/* Rx FIFO Flush Mode Off */
	GMF_CLI_RX_FO	= 1<<5,		/* Clear IRQ Rx FIFO Overrun */
	GMF_CLI_RX_C	= 1<<4,		/* Clear IRQ Rx Frame Complete */

	GMF_OPER_ON	= 1<<3,		/* Operational Mode On */
	GMF_OPER_OFF	= 1<<2,		/* Operational Mode Off */
	GMF_RST_CLR	= 1<<1,		/* Clear GMAC FIFO Reset */
	GMF_RST_SET	= 1<<0,		/* Set   GMAC FIFO Reset */

	RX_GMF_FL_THR_DEF = 0xa,	/* flush threshold (default) */

	GMF_RX_CTRL_DEF	= GMF_OPER_ON | GMF_RX_F_FL_ON,
};


/*	TX_GMF_CTRL_T	32 bit	Tx GMAC FIFO Control/Test */
enum {
	TX_STFW_DIS	= 1<<31,/* Disable Store & Forward (Yukon-EC Ultra) */
	TX_STFW_ENA	= 1<<30,/* Enable  Store & Forward (Yukon-EC Ultra) */

	TX_VLAN_TAG_ON	= 1<<25,/* enable  VLAN tagging */
	TX_VLAN_TAG_OFF	= 1<<24,/* disable VLAN tagging */

	GMF_WSP_TST_ON	= 1<<18,/* Write Shadow Pointer Test On */
	GMF_WSP_TST_OFF	= 1<<17,/* Write Shadow Pointer Test Off */
	GMF_WSP_STEP	= 1<<16,/* Write Shadow Pointer Step/Increment */

	GMF_CLI_TX_FU	= 1<<6,	/* Clear IRQ Tx FIFO Underrun */
	GMF_CLI_TX_FC	= 1<<5,	/* Clear IRQ Tx Frame Complete */
	GMF_CLI_TX_PE	= 1<<4,	/* Clear IRQ Tx Parity Error */
};

/*	GMAC_TI_ST_CTRL	 8 bit	Time Stamp Timer Ctrl Reg (YUKON only) */
enum {
	GMT_ST_START	= 1<<2,	/* Start Time Stamp Timer */
	GMT_ST_STOP	= 1<<1,	/* Stop  Time Stamp Timer */
	GMT_ST_CLR_IRQ	= 1<<0,	/* Clear Time Stamp Timer IRQ */
};

/* B28_Y2_ASF_STAT_CMD		32 bit	ASF Status and Command Reg */
enum {
	Y2_ASF_OS_PRES	= 1<<4,	/* ASF operation system present */
	Y2_ASF_RESET	= 1<<3,	/* ASF system in reset state */
	Y2_ASF_RUNNING	= 1<<2,	/* ASF system operational */
	Y2_ASF_CLR_HSTI = 1<<1,	/* Clear ASF IRQ */
	Y2_ASF_IRQ	= 1<<0,	/* Issue an IRQ to ASF system */

	Y2_ASF_UC_STATE = 3<<2,	/* ASF uC State */
	Y2_ASF_CLK_HALT	= 0,	/* ASF system clock stopped */
};

/* B28_Y2_ASF_HOST_COM	32 bit	ASF Host Communication Reg */
enum {
	Y2_ASF_CLR_ASFI = 1<<1,	/* Clear host IRQ */
	Y2_ASF_HOST_IRQ = 1<<0,	/* Issue an IRQ to HOST system */
};

/*	STAT_CTRL		32 bit	Status BMU control register (Yukon-2 only) */
enum {
	SC_STAT_CLR_IRQ	= 1<<4,	/* Status Burst IRQ clear */
	SC_STAT_OP_ON	= 1<<3,	/* Operational Mode On */
	SC_STAT_OP_OFF	= 1<<2,	/* Operational Mode Off */
	SC_STAT_RST_CLR	= 1<<1,	/* Clear Status Unit Reset (Enable) */
	SC_STAT_RST_SET	= 1<<0,	/* Set   Status Unit Reset */
};

/*	GMAC_CTRL		32 bit	GMAC Control Reg (YUKON only) */
enum {
	GMC_H_BURST_ON	= 1<<7,	/* Half Duplex Burst Mode On */
	GMC_H_BURST_OFF	= 1<<6,	/* Half Duplex Burst Mode Off */
	GMC_F_LOOPB_ON	= 1<<5,	/* FIFO Loopback On */
	GMC_F_LOOPB_OFF	= 1<<4,	/* FIFO Loopback Off */
	GMC_PAUSE_ON	= 1<<3,	/* Pause On */
	GMC_PAUSE_OFF	= 1<<2,	/* Pause Off */
	GMC_RST_CLR	= 1<<1,	/* Clear GMAC Reset */
	GMC_RST_SET	= 1<<0,	/* Set   GMAC Reset */
};

/*	GPHY_CTRL		32 bit	GPHY Control Reg (YUKON only) */
enum {
	GPC_SEL_BDT	= 1<<28, /* Select Bi-Dir. Transfer for MDC/MDIO */
	GPC_INT_POL_HI	= 1<<27, /* IRQ Polarity is Active HIGH */
	GPC_75_OHM	= 1<<26, /* Use 75 Ohm Termination instead of 50 */
	GPC_DIS_FC	= 1<<25, /* Disable Automatic Fiber/Copper Detection */
	GPC_DIS_SLEEP	= 1<<24, /* Disable Energy Detect */
	GPC_HWCFG_M_3	= 1<<23, /* HWCFG_MODE[3] */
	GPC_HWCFG_M_2	= 1<<22, /* HWCFG_MODE[2] */
	GPC_HWCFG_M_1	= 1<<21, /* HWCFG_MODE[1] */
	GPC_HWCFG_M_0	= 1<<20, /* HWCFG_MODE[0] */
	GPC_ANEG_0	= 1<<19, /* ANEG[0] */
	GPC_ENA_XC	= 1<<18, /* Enable MDI crossover */
	GPC_DIS_125	= 1<<17, /* Disable 125 MHz clock */
	GPC_ANEG_3	= 1<<16, /* ANEG[3] */
	GPC_ANEG_2	= 1<<15, /* ANEG[2] */
	GPC_ANEG_1	= 1<<14, /* ANEG[1] */
	GPC_ENA_PAUSE	= 1<<13, /* Enable Pause (SYM_OR_REM) */
	GPC_PHYADDR_4	= 1<<12, /* Bit 4 of Phy Addr */
	GPC_PHYADDR_3	= 1<<11, /* Bit 3 of Phy Addr */
	GPC_PHYADDR_2	= 1<<10, /* Bit 2 of Phy Addr */
	GPC_PHYADDR_1	= 1<<9,	 /* Bit 1 of Phy Addr */
	GPC_PHYADDR_0	= 1<<8,	 /* Bit 0 of Phy Addr */
						/* Bits  7..2:	reserved */
	GPC_RST_CLR	= 1<<1,	/* Clear GPHY Reset */
	GPC_RST_SET	= 1<<0,	/* Set   GPHY Reset */
};

/*	GMAC_IRQ_SRC	 8 bit	GMAC Interrupt Source Reg (YUKON only) */
/*	GMAC_IRQ_MSK	 8 bit	GMAC Interrupt Mask   Reg (YUKON only) */
enum {
	GM_IS_TX_CO_OV	= 1<<5,	/* Transmit Counter Overflow IRQ */
	GM_IS_RX_CO_OV	= 1<<4,	/* Receive Counter Overflow IRQ */
	GM_IS_TX_FF_UR	= 1<<3,	/* Transmit FIFO Underrun */
	GM_IS_TX_COMPL	= 1<<2,	/* Frame Transmission Complete */
	GM_IS_RX_FF_OR	= 1<<1,	/* Receive FIFO Overrun */
	GM_IS_RX_COMPL	= 1<<0,	/* Frame Reception Complete */

#define GMAC_DEF_MSK     GM_IS_TX_FF_UR

/*	GMAC_LINK_CTRL	16 bit	GMAC Link Control Reg (YUKON only) */
						/* Bits 15.. 2:	reserved */
	GMLC_RST_CLR	= 1<<1,	/* Clear GMAC Link Reset */
	GMLC_RST_SET	= 1<<0,	/* Set   GMAC Link Reset */


/*	WOL_CTRL_STAT	16 bit	WOL Control/Status Reg */
	WOL_CTL_LINK_CHG_OCC		= 1<<15,
	WOL_CTL_MAGIC_PKT_OCC		= 1<<14,
	WOL_CTL_PATTERN_OCC		= 1<<13,
	WOL_CTL_CLEAR_RESULT		= 1<<12,
	WOL_CTL_ENA_PME_ON_LINK_CHG	= 1<<11,
	WOL_CTL_DIS_PME_ON_LINK_CHG	= 1<<10,
	WOL_CTL_ENA_PME_ON_MAGIC_PKT	= 1<<9,
	WOL_CTL_DIS_PME_ON_MAGIC_PKT	= 1<<8,
	WOL_CTL_ENA_PME_ON_PATTERN	= 1<<7,
	WOL_CTL_DIS_PME_ON_PATTERN	= 1<<6,
	WOL_CTL_ENA_LINK_CHG_UNIT	= 1<<5,
	WOL_CTL_DIS_LINK_CHG_UNIT	= 1<<4,
	WOL_CTL_ENA_MAGIC_PKT_UNIT	= 1<<3,
	WOL_CTL_DIS_MAGIC_PKT_UNIT	= 1<<2,
	WOL_CTL_ENA_PATTERN_UNIT	= 1<<1,
	WOL_CTL_DIS_PATTERN_UNIT	= 1<<0,
};

#define WOL_CTL_DEFAULT				\
	(WOL_CTL_DIS_PME_ON_LINK_CHG |	\
	WOL_CTL_DIS_PME_ON_PATTERN |	\
	WOL_CTL_DIS_PME_ON_MAGIC_PKT |	\
	WOL_CTL_DIS_LINK_CHG_UNIT |		\
	WOL_CTL_DIS_PATTERN_UNIT |		\
	WOL_CTL_DIS_MAGIC_PKT_UNIT)

/*	WOL_MATCH_CTL	 8 bit	WOL Match Control Reg */
#define WOL_CTL_PATT_ENA(x)	(1 << (x))


/* Control flags */
enum {
	UDPTCP	= 1<<0,
	CALSUM	= 1<<1,
	WR_SUM	= 1<<2,
	INIT_SUM= 1<<3,
	LOCK_SUM= 1<<4,
	INS_VLAN= 1<<5,
	FRC_STAT= 1<<6,
	EOP	= 1<<7,
};

enum {
	HW_OWNER 	= 1<<7,
	OP_TCPWRITE	= 0x11,
	OP_TCPSTART	= 0x12,
	OP_TCPINIT	= 0x14,
	OP_TCPLCK	= 0x18,
	OP_TCPCHKSUM	= OP_TCPSTART,
	OP_TCPIS	= OP_TCPINIT | OP_TCPSTART,
	OP_TCPLW	= OP_TCPLCK | OP_TCPWRITE,
	OP_TCPLSW	= OP_TCPLCK | OP_TCPSTART | OP_TCPWRITE,
	OP_TCPLISW	= OP_TCPLCK | OP_TCPINIT | OP_TCPSTART | OP_TCPWRITE,

	OP_ADDR64	= 0x21,
	OP_VLAN		= 0x22,
	OP_ADDR64VLAN	= OP_ADDR64 | OP_VLAN,
	OP_LRGLEN	= 0x24,
	OP_LRGLENVLAN	= OP_LRGLEN | OP_VLAN,
	OP_BUFFER	= 0x40,
	OP_PACKET	= 0x41,
	OP_LARGESEND	= 0x43,

/* YUKON-2 STATUS opcodes defines */
	OP_RXSTAT	= 0x60,
	OP_RXTIMESTAMP	= 0x61,
	OP_RXVLAN	= 0x62,
	OP_RXCHKS	= 0x64,
	OP_RXCHKSVLAN	= OP_RXCHKS | OP_RXVLAN,
	OP_RXTIMEVLAN	= OP_RXTIMESTAMP | OP_RXVLAN,
	OP_RSS_HASH	= 0x65,
	OP_TXINDEXLE	= 0x68,
};

/* Yukon 2 hardware interface
 * Not tested on big endian
 */
struct sky2_tx_le {
	union {
		__le32	addr;
		struct {
			__le16	offset;
			__le16	start;
		} csum  __attribute((packed));
		struct {
			__le16	size;
			__le16	rsvd;
		} tso  __attribute((packed));
	} tx;
	__le16	length;	/* also vlan tag or checksum start */
	u8	ctrl;
	u8	opcode;
} __attribute((packed));

struct sky2_rx_le {
	__le32	addr;
	__le16	length;
	u8	ctrl;
	u8	opcode;
} __attribute((packed));;

struct sky2_status_le {
	__le32	status;	/* also checksum */
	__le16	length;	/* also vlan tag */
	u8	link;
	u8	opcode;
} __attribute((packed));

struct tx_ring_info {
	struct sk_buff	*skb;
	DECLARE_PCI_UNMAP_ADDR(mapaddr);
	u16		idx;
};

struct ring_info {
	struct sk_buff	*skb;
	dma_addr_t	mapaddr;
};

struct sky2_port {
	struct sky2_hw	     *hw;
	struct net_device    *netdev;
	unsigned	     port;
	u32		     msg_enable;

	spinlock_t	     tx_lock  ____cacheline_aligned_in_smp;
	struct tx_ring_info  *tx_ring;
	struct sky2_tx_le    *tx_le;
	u16		     tx_cons;		/* next le to check */
	u16		     tx_prod;		/* next le to use */
	u32		     tx_addr64;
	u16		     tx_pending;
	u16		     tx_last_put;
	u16		     tx_last_mss;

	struct ring_info     *rx_ring ____cacheline_aligned_in_smp;
	struct sky2_rx_le    *rx_le;
	u32		     rx_addr64;
	u16		     rx_next;		/* next re to check */
	u16		     rx_put;		/* next le index to use */
	u16		     rx_pending;
	u16		     rx_last_put;
	u16		     rx_bufsize;
#ifdef SKY2_VLAN_TAG_USED
	u16		     rx_tag;
	struct vlan_group    *vlgrp;
#endif

	dma_addr_t	     rx_le_map;
	dma_addr_t	     tx_le_map;
	u32		     advertising;	/* ADVERTISED_ bits */
	u16		     speed;	/* SPEED_1000, SPEED_100, ... */
	u8		     autoneg;	/* AUTONEG_ENABLE, AUTONEG_DISABLE */
	u8		     duplex;	/* DUPLEX_HALF, DUPLEX_FULL */
	u8		     rx_pause;
	u8		     tx_pause;
	u8		     rx_csum;
	u8		     wol;

	struct net_device_stats net_stats;

	struct work_struct   phy_task;
	struct semaphore     phy_sema;
};

struct sky2_hw {
	void __iomem  	     *regs;
	struct pci_dev	     *pdev;
	u32		     intr_mask;
	struct net_device    *dev[2];

	int		     pm_cap;
	u8	     	     chip_id;
	u8		     chip_rev;
	u8		     copper;
	u8		     ports;

	struct sky2_status_le *st_le;
	u32		     st_idx;
	dma_addr_t   	     st_dma;
};

/* Register accessor for memory mapped device */
static inline u32 sky2_read32(const struct sky2_hw *hw, unsigned reg)
{
	return readl(hw->regs + reg);
}

static inline u16 sky2_read16(const struct sky2_hw *hw, unsigned reg)
{
	return readw(hw->regs + reg);
}

static inline u8 sky2_read8(const struct sky2_hw *hw, unsigned reg)
{
	return readb(hw->regs + reg);
}

/* This should probably go away, bus based tweeks suck */
static inline int is_pciex(const struct sky2_hw *hw)
{
	u32 status;
	pci_read_config_dword(hw->pdev, PCI_DEV_STATUS, &status);
	return (status & PCI_OS_PCI_X) == 0;
}

static inline void sky2_write32(const struct sky2_hw *hw, unsigned reg, u32 val)
{
	writel(val, hw->regs + reg);
}

static inline void sky2_write16(const struct sky2_hw *hw, unsigned reg, u16 val)
{
	writew(val, hw->regs + reg);
}

static inline void sky2_write8(const struct sky2_hw *hw, unsigned reg, u8 val)
{
	writeb(val, hw->regs + reg);
}

/* Yukon PHY related registers */
#define SK_GMAC_REG(port,reg) \
	(BASE_GMAC_1 + (port) * (BASE_GMAC_2-BASE_GMAC_1) + (reg))
#define GM_PHY_RETRIES	100

static inline u16 gma_read16(const struct sky2_hw *hw, unsigned port, unsigned reg)
{
	return sky2_read16(hw, SK_GMAC_REG(port,reg));
}

static inline u32 gma_read32(struct sky2_hw *hw, unsigned port, unsigned reg)
{
	unsigned base = SK_GMAC_REG(port, reg);
	return (u32) sky2_read16(hw, base)
		| (u32) sky2_read16(hw, base+4) << 16;
}

static inline void gma_write16(const struct sky2_hw *hw, unsigned port, int r, u16 v)
{
	sky2_write16(hw, SK_GMAC_REG(port,r), v);
}

static inline void gma_set_addr(struct sky2_hw *hw, unsigned port, unsigned reg,
				    const u8 *addr)
{
	gma_write16(hw, port, reg,  (u16) addr[0] | ((u16) addr[1] << 8));
	gma_write16(hw, port, reg+4,(u16) addr[2] | ((u16) addr[3] << 8));
	gma_write16(hw, port, reg+8,(u16) addr[4] | ((u16) addr[5] << 8));
}
#endif

Lines 59-64 spidernet-y += spider_net.o spider_net_e Link Here

(-)linux-2.6.15/drivers/net/Makefile (+1 lines)
59	obj-$(CONFIG_SPIDER_NET) += spidernet.o	59	obj-$(CONFIG_SPIDER_NET) += spidernet.o
60	obj-$(CONFIG_TC35815) += tc35815.o	60	obj-$(CONFIG_TC35815) += tc35815.o
61	obj-$(CONFIG_SKGE) += skge.o	61	obj-$(CONFIG_SKGE) += skge.o
		62	obj-$(CONFIG_SKY2) += sky2.o
62	obj-$(CONFIG_SK98LIN) += sk98lin/	63	obj-$(CONFIG_SK98LIN) += sk98lin/
63	obj-$(CONFIG_SKFP) += skfp/	64	obj-$(CONFIG_SKFP) += skfp/
64	obj-$(CONFIG_VIA_RHINE) += via-rhine.o	65	obj-$(CONFIG_VIA_RHINE) += via-rhine.o





	  It does not support the link failover and network management 
	  features that "portable" vendor supplied sk98lin driver does.

config SKY2
	tristate "SysKonnect Yukon2 support (EXPERIMENTAL)"
	depends on PCI && EXPERIMENTAL
	select CRC32
	---help---
	  This driver support the Marvell Yukon 2 Gigabit Ethernet adapter.

	  To compile this driver as a module, choose M here: the module
	  will be called sky2.  This is recommended.

config SK98LIN
	tristate "Marvell Yukon Chipset / SysKonnect SK-98xx Support"
	depends on PCI




	return (1 << debug_value) - 1;
}

/* Test if receive needs to be scheduled */
static inline int __netif_rx_schedule_prep(struct net_device *dev)
{
	return !test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
}

/* Test if receive needs to be scheduled but only if up */
static inline int netif_rx_schedule_prep(struct net_device *dev)
{
	return netif_running(dev) && __netif_rx_schedule_prep(dev);
		!test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
}

/* Add interface to tail of rx poll list. This assumes that _prep has

Return to bug 119771

Lines 2008-2014 config SKGE Link Here

(-)linux-2.6.15/drivers/net/Kconfig (-1 / +11 lines)
2008		2008
2009	It does not support the link failover and network management	2009	It does not support the link failover and network management
2010	features that "portable" vendor supplied sk98lin driver does.	2010	features that "portable" vendor supplied sk98lin driver does.
2011		2011
		2012	config SKY2
		2013	tristate "SysKonnect Yukon2 support (EXPERIMENTAL)"
		2014	depends on PCI && EXPERIMENTAL
		2015	select CRC32
		2016	---help---
		2017	This driver support the Marvell Yukon 2 Gigabit Ethernet adapter.
		2018
		2019	To compile this driver as a module, choose M here: the module
		2020	will be called sky2. This is recommended.
		2021
2012	config SK98LIN	2022	config SK98LIN
2013	tristate "Marvell Yukon Chipset / SysKonnect SK-98xx Support"	2023	tristate "Marvell Yukon Chipset / SysKonnect SK-98xx Support"
2014	depends on PCI	2024	depends on PCI

Lines 801-812 static inline u32 netif_msg_init(int deb Link Here

(-)linux-2.6.15/include/linux/netdevice.h (-3 / +7 lines)
801	return (1 << debug_value) - 1;	801	return (1 << debug_value) - 1;
802	}	802	}
803		803
804	/* Schedule rx intr now? */	804	/* Test if receive needs to be scheduled */
		805	static inline int __netif_rx_schedule_prep(struct net_device *dev)
		806	{
		807	return !test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
		808	}
805		809
		810	/* Test if receive needs to be scheduled but only if up */
806	static inline int netif_rx_schedule_prep(struct net_device *dev)	811	static inline int netif_rx_schedule_prep(struct net_device *dev)
807	{	812	{
808	return netif_running(dev) &&	813	return netif_running(dev) && __netif_rx_schedule_prep(dev);
809	!test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state);
810	}	814	}
811		815
812	/* Add interface to tail of rx poll list. This assumes that _prep has	816	/* Add interface to tail of rx poll list. This assumes that _prep has