* Patches by Udi Finkelstein, 2 June 2003:LABEL_2003_06_04_0200

  - Added support for custom keyboards, initialized by defining a
    board-specific drv_keyboard_init as well as defining CONFIG_KEYBOARD .
  - Added support for the RBC823 board.
  - cpu/mpc8xx/lcd.c now automatically calculates the
    Horizontal Pixel Count field.

* Fix alignment problem in BOOTP (dhcp_leasetime option)
  [pointed out by Nicolas Lacressonnière, 2 Jun 2003]

* Patch by Mark Rakes, 14 May 2003:
  add support for Intel e1000 gig cards.

* Patch by Nye Liu, 3 Jun 2003:
  fix critical typo in MAMR definition (include/mpc8xx.h)

* Fix requirement to align U-Boot image on 16 kB boundaries on PPC.

* Patch by Klaus Heydeck, 2 Jun 2003
  Minor changes for KUP4K configuration

3 files changed, 4739 insertions, 1 deletions

diff --git a/drivers/Makefile b/drivers/Makefile
index 277d6f68c63..c1fa4193e80 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -30,7 +30,8 @@ LIB	= libdrivers.a
 OBJS	= 3c589.o 5701rls.o ali512x.o at91rm9200_ether.o \
 	  bcm570x.o bcm570x_autoneg.o cfb_console.o \
 	  cs8900.o ct69000.o dc2114x.o          \
-	  eepro100.o i8042.o i82365.o inca-ip_sw.o \
+	  e1000.o eepro100.o \
+	  i8042.o i82365.o inca-ip_sw.o \
 	  lan91c96.o             natsemi.o \
 	  ns16550.o ns8382x.o ns87308.o \
 	  pci.o pci_auto.o pci_indirect.o \
diff --git a/drivers/e1000.c b/drivers/e1000.c
new file mode 100644
index 00000000000..b4d50b803db
--- /dev/null
+++ b/drivers/e1000.c
@@ -0,0 +1,2979 @@
+/**************************************************************************
+Inter Pro 1000 for ppcboot/das-u-boot
+Drivers are port from Intel's Linux driver e1000-4.3.15
+and from Etherboot pro 1000 driver by mrakes at vivato dot net
+tested on both gig copper and gig fiber boards
+***************************************************************************/
+/*******************************************************************************
+
+  
+  Copyright(c) 1999 - 2002 Intel Corporation. All rights reserved.
+  
+  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., 59 
+  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+  
+  The full GNU General Public License is included in this distribution in the
+  file called LICENSE.
+  
+  Contact Information:
+  Linux NICS <linux.nics@intel.com>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+/*
+ *  Copyright (C) Archway Digital Solutions.
+ *
+ *  written by Chrsitopher Li <cli at arcyway dot com> or <chrisl at gnuchina dot org>
+ *  2/9/2002
+ *
+ *  Copyright (C) Linux Networx.
+ *  Massive upgrade to work with the new intel gigabit NICs.
+ *  <ebiederman at lnxi dot com>
+ */
+
+#include "e1000.h"
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) && \
+	defined(CONFIG_E1000)
+
+#define TOUT_LOOP   100000
+
+#undef	virt_to_bus
+#define	virt_to_bus(x)	((unsigned long)x)
+#define bus_to_phys(devno, a)	pci_mem_to_phys(devno, a)
+#define mdelay(n)       udelay((n)*1000)
+
+#define E1000_DEFAULT_PBA    0x00000030
+
+/* NIC specific static variables go here */
+
+static char tx_pool[128 + 16];
+static char rx_pool[128 + 16];
+static char packet[2096];
+
+static struct e1000_tx_desc *tx_base;
+static struct e1000_rx_desc *rx_base;
+
+static int tx_tail;
+static int rx_tail, rx_last;
+
+static struct pci_device_id supported[] = {
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82542},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82543GC_FIBER},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82543GC_COPPER},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82544EI_COPPER},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82544EI_FIBER},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82544GC_COPPER},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82544GC_LOM},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82540EM},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82545EM_COPPER},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82546EB_COPPER},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82545EM_FIBER},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82546EB_FIBER},
+	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82540EM_LOM},
+};
+
+/* Function forward declarations */
+static int e1000_setup_link(struct eth_device *nic);
+static int e1000_setup_fiber_link(struct eth_device *nic);
+static int e1000_setup_copper_link(struct eth_device *nic);
+static int e1000_phy_setup_autoneg(struct e1000_hw *hw);
+static void e1000_config_collision_dist(struct e1000_hw *hw);
+static int e1000_config_mac_to_phy(struct e1000_hw *hw);
+static int e1000_config_fc_after_link_up(struct e1000_hw *hw);
+static int e1000_check_for_link(struct eth_device *nic);
+static int e1000_wait_autoneg(struct e1000_hw *hw);
+static void e1000_get_speed_and_duplex(struct e1000_hw *hw, uint16_t * speed,
+				       uint16_t * duplex);
+static int e1000_read_phy_reg(struct e1000_hw *hw, uint32_t reg_addr,
+			      uint16_t * phy_data);
+static int e1000_write_phy_reg(struct e1000_hw *hw, uint32_t reg_addr,
+			       uint16_t phy_data);
+static void e1000_phy_hw_reset(struct e1000_hw *hw);
+static int e1000_phy_reset(struct e1000_hw *hw);
+static int e1000_detect_gig_phy(struct e1000_hw *hw);
+
+#define E1000_WRITE_REG(a, reg, value) (writel((value), ((a)->hw_addr + E1000_##reg)))
+#define E1000_READ_REG(a, reg) (readl((a)->hw_addr + E1000_##reg))
+#define E1000_WRITE_REG_ARRAY(a, reg, offset, value) (\
+			writel((value), ((a)->hw_addr + E1000_##reg + ((offset) << 2))))
+#define E1000_READ_REG_ARRAY(a, reg, offset) ( \
+        readl((a)->hw_addr + E1000_##reg + ((offset) << 2)))
+#define E1000_WRITE_FLUSH(a) {uint32_t x; x = E1000_READ_REG(a, STATUS);}
+
+/******************************************************************************
+ * Raises the EEPROM's clock input.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * eecd - EECD's current value
+ *****************************************************************************/
+static void
+e1000_raise_ee_clk(struct e1000_hw *hw, uint32_t * eecd)
+{
+	/* Raise the clock input to the EEPROM (by setting the SK bit), and then
+	 * wait 50 microseconds.
+	 */
+	*eecd = *eecd | E1000_EECD_SK;
+	E1000_WRITE_REG(hw, EECD, *eecd);
+	E1000_WRITE_FLUSH(hw);
+	udelay(50);
+}
+
+/******************************************************************************
+ * Lowers the EEPROM's clock input.
+ *
+ * hw - Struct containing variables accessed by shared code 
+ * eecd - EECD's current value
+ *****************************************************************************/
+static void
+e1000_lower_ee_clk(struct e1000_hw *hw, uint32_t * eecd)
+{
+	/* Lower the clock input to the EEPROM (by clearing the SK bit), and then 
+	 * wait 50 microseconds. 
+	 */
+	*eecd = *eecd & ~E1000_EECD_SK;
+	E1000_WRITE_REG(hw, EECD, *eecd);
+	E1000_WRITE_FLUSH(hw);
+	udelay(50);
+}
+
+/******************************************************************************
+ * Shift data bits out to the EEPROM.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * data - data to send to the EEPROM
+ * count - number of bits to shift out
+ *****************************************************************************/
+static void
+e1000_shift_out_ee_bits(struct e1000_hw *hw, uint16_t data, uint16_t count)
+{
+	uint32_t eecd;
+	uint32_t mask;
+
+	/* We need to shift "count" bits out to the EEPROM. So, value in the
+	 * "data" parameter will be shifted out to the EEPROM one bit at a time.
+	 * In order to do this, "data" must be broken down into bits. 
+	 */
+	mask = 0x01 << (count - 1);
+	eecd = E1000_READ_REG(hw, EECD);
+	eecd &= ~(E1000_EECD_DO | E1000_EECD_DI);
+	do {
+		/* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1",
+		 * and then raising and then lowering the clock (the SK bit controls
+		 * the clock input to the EEPROM).  A "0" is shifted out to the EEPROM
+		 * by setting "DI" to "0" and then raising and then lowering the clock.
+		 */
+		eecd &= ~E1000_EECD_DI;
+
+		if (data & mask)
+			eecd |= E1000_EECD_DI;
+
+		E1000_WRITE_REG(hw, EECD, eecd);
+		E1000_WRITE_FLUSH(hw);
+
+		udelay(50);
+
+		e1000_raise_ee_clk(hw, &eecd);
+		e1000_lower_ee_clk(hw, &eecd);
+
+		mask = mask >> 1;
+
+	} while (mask);
+
+	/* We leave the "DI" bit set to "0" when we leave this routine. */
+	eecd &= ~E1000_EECD_DI;
+	E1000_WRITE_REG(hw, EECD, eecd);
+}
+
+/******************************************************************************
+ * Shift data bits in from the EEPROM
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static uint16_t
+e1000_shift_in_ee_bits(struct e1000_hw *hw)
+{
+	uint32_t eecd;
+	uint32_t i;
+	uint16_t data;
+
+	/* In order to read a register from the EEPROM, we need to shift 16 bits 
+	 * in from the EEPROM. Bits are "shifted in" by raising the clock input to
+	 * the EEPROM (setting the SK bit), and then reading the value of the "DO"
+	 * bit.  During this "shifting in" process the "DI" bit should always be 
+	 * clear..
+	 */
+
+	eecd = E1000_READ_REG(hw, EECD);
+
+	eecd &= ~(E1000_EECD_DO | E1000_EECD_DI);
+	data = 0;
+
+	for (i = 0; i < 16; i++) {
+		data = data << 1;
+		e1000_raise_ee_clk(hw, &eecd);
+
+		eecd = E1000_READ_REG(hw, EECD);
+
+		eecd &= ~(E1000_EECD_DI);
+		if (eecd & E1000_EECD_DO)
+			data |= 1;
+
+		e1000_lower_ee_clk(hw, &eecd);
+	}
+
+	return data;
+}
+
+/******************************************************************************
+ * Prepares EEPROM for access
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This 
+ * function should be called before issuing a command to the EEPROM.
+ *****************************************************************************/
+static void
+e1000_setup_eeprom(struct e1000_hw *hw)
+{
+	uint32_t eecd;
+
+	eecd = E1000_READ_REG(hw, EECD);
+
+	/* Clear SK and DI */
+	eecd &= ~(E1000_EECD_SK | E1000_EECD_DI);
+	E1000_WRITE_REG(hw, EECD, eecd);
+
+	/* Set CS */
+	eecd |= E1000_EECD_CS;
+	E1000_WRITE_REG(hw, EECD, eecd);
+}
+
+/******************************************************************************
+ * Returns EEPROM to a "standby" state
+ * 
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static void
+e1000_standby_eeprom(struct e1000_hw *hw)
+{
+	uint32_t eecd;
+
+	eecd = E1000_READ_REG(hw, EECD);
+
+	/* Deselct EEPROM */
+	eecd &= ~(E1000_EECD_CS | E1000_EECD_SK);
+	E1000_WRITE_REG(hw, EECD, eecd);
+	E1000_WRITE_FLUSH(hw);
+	udelay(50);
+
+	/* Clock high */
+	eecd |= E1000_EECD_SK;
+	E1000_WRITE_REG(hw, EECD, eecd);
+	E1000_WRITE_FLUSH(hw);
+	udelay(50);
+
+	/* Select EEPROM */
+	eecd |= E1000_EECD_CS;
+	E1000_WRITE_REG(hw, EECD, eecd);
+	E1000_WRITE_FLUSH(hw);
+	udelay(50);
+
+	/* Clock low */
+	eecd &= ~E1000_EECD_SK;
+	E1000_WRITE_REG(hw, EECD, eecd);
+	E1000_WRITE_FLUSH(hw);
+	udelay(50);
+}
+
+/******************************************************************************
+ * Reads a 16 bit word from the EEPROM.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * offset - offset of  word in the EEPROM to read
+ * data - word read from the EEPROM 
+ *****************************************************************************/
+static int
+e1000_read_eeprom(struct e1000_hw *hw, uint16_t offset, uint16_t * data)
+{
+	uint32_t eecd;
+	uint32_t i = 0;
+	int large_eeprom = FALSE;
+
+	/* Request EEPROM Access */
+	if (hw->mac_type > e1000_82544) {
+		eecd = E1000_READ_REG(hw, EECD);
+		if (eecd & E1000_EECD_SIZE)
+			large_eeprom = TRUE;
+		eecd |= E1000_EECD_REQ;
+		E1000_WRITE_REG(hw, EECD, eecd);
+		eecd = E1000_READ_REG(hw, EECD);
+		while ((!(eecd & E1000_EECD_GNT)) && (i < 100)) {
+			i++;
+			udelay(10);
+			eecd = E1000_READ_REG(hw, EECD);
+		}
+		if (!(eecd & E1000_EECD_GNT)) {
+			eecd &= ~E1000_EECD_REQ;
+			E1000_WRITE_REG(hw, EECD, eecd);
+			DEBUGOUT("Could not acquire EEPROM grant\n");
+			return -E1000_ERR_EEPROM;
+		}
+	}
+
+	/*  Prepare the EEPROM for reading  */
+	e1000_setup_eeprom(hw);
+
+	/*  Send the READ command (opcode + addr)  */
+	e1000_shift_out_ee_bits(hw, EEPROM_READ_OPCODE, 3);
+	e1000_shift_out_ee_bits(hw, offset, (large_eeprom) ? 8 : 6);
+
+	/* Read the data */
+	*data = e1000_shift_in_ee_bits(hw);
+
+	/* End this read operation */
+	e1000_standby_eeprom(hw);
+
+	/* Stop requesting EEPROM access */
+	if (hw->mac_type > e1000_82544) {
+		eecd = E1000_READ_REG(hw, EECD);
+		eecd &= ~E1000_EECD_REQ;
+		E1000_WRITE_REG(hw, EECD, eecd);
+	}
+
+	return 0;
+}
+
+#if 0
+static void
+e1000_eeprom_cleanup(struct e1000_hw *hw)
+{
+	uint32_t eecd;
+
+	eecd = E1000_READ_REG(hw, EECD);
+	eecd &= ~(E1000_EECD_CS | E1000_EECD_DI);
+	E1000_WRITE_REG(hw, EECD, eecd);
+	e1000_raise_ee_clk(hw, &eecd);
+	e1000_lower_ee_clk(hw, &eecd);
+}
+
+static uint16_t
+e1000_wait_eeprom_done(struct e1000_hw *hw)
+{
+	uint32_t eecd;
+	uint32_t i;
+
+	e1000_standby_eeprom(hw);
+	for (i = 0; i < 200; i++) {
+		eecd = E1000_READ_REG(hw, EECD);
+		if (eecd & E1000_EECD_DO)
+			return (TRUE);
+		udelay(5);
+	}
+	return (FALSE);
+}
+
+static int
+e1000_write_eeprom(struct e1000_hw *hw, uint16_t Reg, uint16_t Data)
+{
+	uint32_t eecd;
+	int large_eeprom = FALSE;
+	int i = 0;
+
+	/* Request EEPROM Access */
+	if (hw->mac_type > e1000_82544) {
+		eecd = E1000_READ_REG(hw, EECD);
+		if (eecd & E1000_EECD_SIZE)
+			large_eeprom = TRUE;
+		eecd |= E1000_EECD_REQ;
+		E1000_WRITE_REG(hw, EECD, eecd);
+		eecd = E1000_READ_REG(hw, EECD);
+		while ((!(eecd & E1000_EECD_GNT)) && (i < 100)) {
+			i++;
+			udelay(5);
+			eecd = E1000_READ_REG(hw, EECD);
+		}
+		if (!(eecd & E1000_EECD_GNT)) {
+			eecd &= ~E1000_EECD_REQ;
+			E1000_WRITE_REG(hw, EECD, eecd);
+			DEBUGOUT("Could not acquire EEPROM grant\n");
+			return FALSE;
+		}
+	}
+	e1000_setup_eeprom(hw);
+	e1000_shift_out_ee_bits(hw, EEPROM_EWEN_OPCODE, 5);
+	e1000_shift_out_ee_bits(hw, Reg, (large_eeprom) ? 6 : 4);
+	e1000_standby_eeprom(hw);
+	e1000_shift_out_ee_bits(hw, EEPROM_WRITE_OPCODE, 3);
+	e1000_shift_out_ee_bits(hw, Reg, (large_eeprom) ? 8 : 6);
+	e1000_shift_out_ee_bits(hw, Data, 16);
+	if (!e1000_wait_eeprom_done(hw)) {
+		return FALSE;
+	}
+	e1000_shift_out_ee_bits(hw, EEPROM_EWDS_OPCODE, 5);
+	e1000_shift_out_ee_bits(hw, Reg, (large_eeprom) ? 6 : 4);
+	e1000_eeprom_cleanup(hw);
+
+	/* Stop requesting EEPROM access */
+	if (hw->mac_type > e1000_82544) {
+		eecd = E1000_READ_REG(hw, EECD);
+		eecd &= ~E1000_EECD_REQ;
+		E1000_WRITE_REG(hw, EECD, eecd);
+	}
+	i = 0;
+	eecd = E1000_READ_REG(hw, EECD);
+	while (((eecd & E1000_EECD_GNT)) && (i < 500)) {
+		i++;
+		udelay(10);
+		eecd = E1000_READ_REG(hw, EECD);
+	}
+	if ((eecd & E1000_EECD_GNT)) {
+		DEBUGOUT("Could not release EEPROM grant\n");
+	}
+	return TRUE;
+}
+#endif
+
+/******************************************************************************
+ * Verifies that the EEPROM has a valid checksum
+ * 
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Reads the first 64 16 bit words of the EEPROM and sums the values read.
+ * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is
+ * valid.
+ *****************************************************************************/
+static int
+e1000_validate_eeprom_checksum(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+	uint16_t checksum = 0;
+	uint16_t i, eeprom_data;
+
+	DEBUGFUNC();
+
+	for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
+		if (e1000_read_eeprom(hw, i, &eeprom_data) < 0) {
+			DEBUGOUT("EEPROM Read Error\n");
+			return -E1000_ERR_EEPROM;
+		}
+		checksum += eeprom_data;
+	}
+	
+	if (checksum == (uint16_t) EEPROM_SUM) {
+		return 0;
+	} else {
+		DEBUGOUT("EEPROM Checksum Invalid\n");
+		return -E1000_ERR_EEPROM;
+	}
+}
+
+/******************************************************************************
+ * Reads the adapter's MAC address from the EEPROM and inverts the LSB for the
+ * second function of dual function devices
+ *
+ * nic - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static int
+e1000_read_mac_addr(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+	uint16_t offset;
+	uint16_t eeprom_data;
+	int i;
+
+	DEBUGFUNC();
+
+	for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) {
+		offset = i >> 1;
+		if (e1000_read_eeprom(hw, offset, &eeprom_data) < 0) {
+			DEBUGOUT("EEPROM Read Error\n");
+			return -E1000_ERR_EEPROM;
+		}
+		nic->enetaddr[i] = eeprom_data & 0xff;
+		nic->enetaddr[i + 1] = (eeprom_data >> 8) & 0xff;
+	}
+	if ((hw->mac_type == e1000_82546) &&
+	    (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) {
+		/* Invert the last bit if this is the second device */
+		nic->enetaddr[5] += 1;
+	}
+	return 0;
+}
+
+/******************************************************************************
+ * Initializes receive address filters.
+ *
+ * hw - Struct containing variables accessed by shared code 
+ *
+ * Places the MAC address in receive address register 0 and clears the rest
+ * of the receive addresss registers. Clears the multicast table. Assumes
+ * the receiver is in reset when the routine is called.
+ *****************************************************************************/
+static void
+e1000_init_rx_addrs(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+	uint32_t i;
+	uint32_t addr_low;
+	uint32_t addr_high;
+
+	DEBUGFUNC();
+
+	/* Setup the receive address. */
+	DEBUGOUT("Programming MAC Address into RAR[0]\n");
+	addr_low = (nic->enetaddr[0] |
+		    (nic->enetaddr[1] << 8) |
+		    (nic->enetaddr[2] << 16) | (nic->enetaddr[3] << 24));
+
+	addr_high = (nic->enetaddr[4] | (nic->enetaddr[5] << 8) | E1000_RAH_AV);
+
+	E1000_WRITE_REG_ARRAY(hw, RA, 0, addr_low);
+	E1000_WRITE_REG_ARRAY(hw, RA, 1, addr_high);
+
+	/* Zero out the other 15 receive addresses. */
+	DEBUGOUT("Clearing RAR[1-15]\n");
+	for (i = 1; i < E1000_RAR_ENTRIES; i++) {
+		E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0);
+		E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0);
+	}
+}
+
+/******************************************************************************
+ * Clears the VLAN filer table
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static void
+e1000_clear_vfta(struct e1000_hw *hw)
+{
+	uint32_t offset;
+
+	for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++)
+		E1000_WRITE_REG_ARRAY(hw, VFTA, offset, 0);
+}
+
+/******************************************************************************
+ * Set the mac type member in the hw struct.
+ * 
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+static int
+e1000_set_mac_type(struct e1000_hw *hw)
+{
+	DEBUGFUNC();
+
+	switch (hw->device_id) {
+	case E1000_DEV_ID_82542:
+		switch (hw->revision_id) {
+		case E1000_82542_2_0_REV_ID:
+			hw->mac_type = e1000_82542_rev2_0;
+			break;
+		case E1000_82542_2_1_REV_ID:
+			hw->mac_type = e1000_82542_rev2_1;
+			break;
+		default:
+			/* Invalid 82542 revision ID */
+			return -E1000_ERR_MAC_TYPE;
+		}
+		break;
+	case E1000_DEV_ID_82543GC_FIBER:
+	case E1000_DEV_ID_82543GC_COPPER:
+		hw->mac_type = e1000_82543;
+		break;
+	case E1000_DEV_ID_82544EI_COPPER:
+	case E1000_DEV_ID_82544EI_FIBER:
+	case E1000_DEV_ID_82544GC_COPPER:
+	case E1000_DEV_ID_82544GC_LOM:
+		hw->mac_type = e1000_82544;
+		break;
+	case E1000_DEV_ID_82540EM:
+	case E1000_DEV_ID_82540EM_LOM:
+		hw->mac_type = e1000_82540;
+		break;
+	case E1000_DEV_ID_82545EM_COPPER:
+	case E1000_DEV_ID_82545EM_FIBER:
+		hw->mac_type = e1000_82545;
+		break;
+	case E1000_DEV_ID_82546EB_COPPER:
+	case E1000_DEV_ID_82546EB_FIBER:
+		hw->mac_type = e1000_82546;
+		break;
+	default:
+		/* Should never have loaded on this device */
+		return -E1000_ERR_MAC_TYPE;
+	}
+	return E1000_SUCCESS;
+}
+
+/******************************************************************************
+ * Reset the transmit and receive units; mask and clear all interrupts.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *****************************************************************************/
+void
+e1000_reset_hw(struct e1000_hw *hw)
+{
+	uint32_t ctrl;
+	uint32_t ctrl_ext;
+	uint32_t icr;
+	uint32_t manc;
+
+	DEBUGFUNC();
+
+	/* For 82542 (rev 2.0), disable MWI before issuing a device reset */
+	if (hw->mac_type == e1000_82542_rev2_0) {
+		DEBUGOUT("Disabling MWI on 82542 rev 2.0\n");
+		pci_write_config_word(hw->pdev, PCI_COMMAND,
+				      hw->
+				      pci_cmd_word & ~PCI_COMMAND_INVALIDATE);
+	}
+
+	/* Clear interrupt mask to stop board from generating interrupts */
+	DEBUGOUT("Masking off all interrupts\n");
+	E1000_WRITE_REG(hw, IMC, 0xffffffff);
+
+	/* Disable the Transmit and Receive units.  Then delay to allow
+	 * any pending transactions to complete before we hit the MAC with
+	 * the global reset.
+	 */
+	E1000_WRITE_REG(hw, RCTL, 0);
+	E1000_WRITE_REG(hw, TCTL, E1000_TCTL_PSP);
+	E1000_WRITE_FLUSH(hw);
+
+	/* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */
+	hw->tbi_compatibility_on = FALSE;
+
+	/* Delay to allow any outstanding PCI transactions to complete before
+	 * resetting the device
+	 */
+	mdelay(10);
+
+	/* Issue a global reset to the MAC.  This will reset the chip's
+	 * transmit, receive, DMA, and link units.  It will not effect
+	 * the current PCI configuration.  The global reset bit is self-
+	 * clearing, and should clear within a microsecond.
+	 */
+	DEBUGOUT("Issuing a global reset to MAC\n");
+	ctrl = E1000_READ_REG(hw, CTRL);
+
+#if 0
+	if (hw->mac_type > e1000_82543)
+		E1000_WRITE_REG_IO(hw, CTRL, (ctrl | E1000_CTRL_RST));
+	else
+#endif
+		E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_RST));
+
+	/* Force a reload from the EEPROM if necessary */
+	if (hw->mac_type < e1000_82540) {
+		/* Wait for reset to complete */
+		udelay(10);
+		ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
+		ctrl_ext |= E1000_CTRL_EXT_EE_RST;
+		E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
+		E1000_WRITE_FLUSH(hw);
+		/* Wait for EEPROM reload */
+		mdelay(2);
+	} else {
+		/* Wait for EEPROM reload (it happens automatically) */
+		mdelay(4);
+		/* Dissable HW ARPs on ASF enabled adapters */
+		manc = E1000_READ_REG(hw, MANC);
+		manc &= ~(E1000_MANC_ARP_EN);
+		E1000_WRITE_REG(hw, MANC, manc);
+	}
+
+	/* Clear interrupt mask to stop board from generating interrupts */
+	DEBUGOUT("Masking off all interrupts\n");
+	E1000_WRITE_REG(hw, IMC, 0xffffffff);
+
+	/* Clear any pending interrupt events. */
+	icr = E1000_READ_REG(hw, ICR);
+
+	/* If MWI was previously enabled, reenable it. */
+	if (hw->mac_type == e1000_82542_rev2_0) {
+		pci_write_config_word(hw->pdev, PCI_COMMAND, hw->pci_cmd_word);
+	}
+}
+
+/******************************************************************************
+ * Performs basic configuration of the adapter.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * 
+ * Assumes that the controller has previously been reset and is in a 
+ * post-reset uninitialized state. Initializes the receive address registers,
+ * multicast table, and VLAN filter table. Calls routines to setup link
+ * configuration and flow control settings. Clears all on-chip counters. Leaves
+ * the transmit and receive units disabled and uninitialized.
+ *****************************************************************************/
+static int
+e1000_init_hw(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+	uint32_t ctrl, status;
+	uint32_t i;
+	int32_t ret_val;
+	uint16_t pcix_cmd_word;
+	uint16_t pcix_stat_hi_word;
+	uint16_t cmd_mmrbc;
+	uint16_t stat_mmrbc;
+	e1000_bus_type bus_type = e1000_bus_type_unknown;
+
+	DEBUGFUNC();
+#if 0
+	/* Initialize Identification LED */
+	ret_val = e1000_id_led_init(hw);
+	if (ret_val < 0) {
+		DEBUGOUT("Error Initializing Identification LED\n");
+		return ret_val;
+	}
+#endif
+	/* Set the Media Type and exit with error if it is not valid. */
+	if (hw->mac_type != e1000_82543) {
+		/* tbi_compatibility is only valid on 82543 */
+		hw->tbi_compatibility_en = FALSE;
+	}
+
+	if (hw->mac_type >= e1000_82543) {
+		status = E1000_READ_REG(hw, STATUS);
+		if (status & E1000_STATUS_TBIMODE) {
+			hw->media_type = e1000_media_type_fiber;
+			/* tbi_compatibility not valid on fiber */
+			hw->tbi_compatibility_en = FALSE;
+		} else {
+			hw->media_type = e1000_media_type_copper;
+		}
+	} else {
+		/* This is an 82542 (fiber only) */
+		hw->media_type = e1000_media_type_fiber;
+	}
+
+	/* Disabling VLAN filtering. */
+	DEBUGOUT("Initializing the IEEE VLAN\n");
+	E1000_WRITE_REG(hw, VET, 0);
+
+	e1000_clear_vfta(hw);
+
+	/* For 82542 (rev 2.0), disable MWI and put the receiver into reset */
+	if (hw->mac_type == e1000_82542_rev2_0) {
+		DEBUGOUT("Disabling MWI on 82542 rev 2.0\n");
+		pci_write_config_word(hw->pdev, PCI_COMMAND,
+				      hw->
+				      pci_cmd_word & ~PCI_COMMAND_INVALIDATE);
+		E1000_WRITE_REG(hw, RCTL, E1000_RCTL_RST);
+		E1000_WRITE_FLUSH(hw);
+		mdelay(5);
+	}
+
+	/* Setup the receive address. This involves initializing all of the Receive
+	 * Address Registers (RARs 0 - 15).
+	 */
+	e1000_init_rx_addrs(nic);
+
+	/* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */
+	if (hw->mac_type == e1000_82542_rev2_0) {
+		E1000_WRITE_REG(hw, RCTL, 0);
+		E1000_WRITE_FLUSH(hw);
+		mdelay(1);
+		pci_write_config_word(hw->pdev, PCI_COMMAND, hw->pci_cmd_word);
+	}
+
+	/* Zero out the Multicast HASH table */
+	DEBUGOUT("Zeroing the MTA\n");
+	for (i = 0; i < E1000_MC_TBL_SIZE; i++)
+		E1000_WRITE_REG_ARRAY(hw, MTA, i, 0);
+
+#if 0
+	/* Set the PCI priority bit correctly in the CTRL register.  This
+	 * determines if the adapter gives priority to receives, or if it
+	 * gives equal priority to transmits and receives.
+	 */
+	if (hw->dma_fairness) {
+		ctrl = E1000_READ_REG(hw, CTRL);
+		E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PRIOR);
+	}
+#endif
+	if (hw->mac_type >= e1000_82543) {
+		status = E1000_READ_REG(hw, STATUS);
+		bus_type = (status & E1000_STATUS_PCIX_MODE) ?
+		    e1000_bus_type_pcix : e1000_bus_type_pci;
+	}
+	/* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */
+	if (bus_type == e1000_bus_type_pcix) {
+		pci_read_config_word(hw->pdev, PCIX_COMMAND_REGISTER,
+				     &pcix_cmd_word);
+		pci_read_config_word(hw->pdev, PCIX_STATUS_REGISTER_HI,
+				     &pcix_stat_hi_word);
+		cmd_mmrbc =
+		    (pcix_cmd_word & PCIX_COMMAND_MMRBC_MASK) >>
+		    PCIX_COMMAND_MMRBC_SHIFT;
+		stat_mmrbc =
+		    (pcix_stat_hi_word & PCIX_STATUS_HI_MMRBC_MASK) >>
+		    PCIX_STATUS_HI_MMRBC_SHIFT;
+		if (stat_mmrbc == PCIX_STATUS_HI_MMRBC_4K)
+			stat_mmrbc = PCIX_STATUS_HI_MMRBC_2K;
+		if (cmd_mmrbc > stat_mmrbc) {
+			pcix_cmd_word &= ~PCIX_COMMAND_MMRBC_MASK;
+			pcix_cmd_word |= stat_mmrbc << PCIX_COMMAND_MMRBC_SHIFT;
+			pci_write_config_word(hw->pdev, PCIX_COMMAND_REGISTER,
+					      pcix_cmd_word);
+		}
+	}
+
+	/* Call a subroutine to configure the link and setup flow control. */
+	ret_val = e1000_setup_link(nic);
+
+	/* Set the transmit descriptor write-back policy */
+	if (hw->mac_type > e1000_82544) {
+		ctrl = E1000_READ_REG(hw, TXDCTL);
+		ctrl =
+		    (ctrl & ~E1000_TXDCTL_WTHRESH) |
+		    E1000_TXDCTL_FULL_TX_DESC_WB;
+		E1000_WRITE_REG(hw, TXDCTL, ctrl);
+	}
+#if 0
+	/* Clear all of the statistics registers (clear on read).  It is
+	 * important that we do this after we have tried to establish link
+	 * because the symbol error count will increment wildly if there
+	 * is no link.
+	 */
+	e1000_clear_hw_cntrs(hw);
+#endif
+
+	return ret_val;
+}
+
+/******************************************************************************
+ * Configures flow control and link settings.
+ * 
+ * hw - Struct containing variables accessed by shared code
+ * 
+ * Determines which flow control settings to use. Calls the apropriate media-
+ * specific link configuration function. Configures the flow control settings.
+ * Assuming the adapter has a valid link partner, a valid link should be
+ * established. Assumes the hardware has previously been reset and the 
+ * transmitter and receiver are not enabled.
+ *****************************************************************************/
+static int
+e1000_setup_link(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+	uint32_t ctrl_ext;
+	int32_t ret_val;
+	uint16_t eeprom_data;
+
+	DEBUGFUNC();
+
+	/* Read and store word 0x0F of the EEPROM. This word contains bits
+	 * that determine the hardware's default PAUSE (flow control) mode,
+	 * a bit that determines whether the HW defaults to enabling or
+	 * disabling auto-negotiation, and the direction of the
+	 * SW defined pins. If there is no SW over-ride of the flow
+	 * control setting, then the variable hw->fc will
+	 * be initialized based on a value in the EEPROM.
+	 */
+	if (e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, &eeprom_data) < 0) {
+		DEBUGOUT("EEPROM Read Error\n");
+		return -E1000_ERR_EEPROM;
+	}
+
+	if (hw->fc == e1000_fc_default) {
+		if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == 0)
+			hw->fc = e1000_fc_none;
+		else if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) ==
+			 EEPROM_WORD0F_ASM_DIR)
+			hw->fc = e1000_fc_tx_pause;
+		else
+			hw->fc = e1000_fc_full;
+	}
+
+	/* We want to save off the original Flow Control configuration just
+	 * in case we get disconnected and then reconnected into a different
+	 * hub or switch with different Flow Control capabilities.
+	 */
+	if (hw->mac_type == e1000_82542_rev2_0)
+		hw->fc &= (~e1000_fc_tx_pause);
+
+	if ((hw->mac_type < e1000_82543) && (hw->report_tx_early == 1))
+		hw->fc &= (~e1000_fc_rx_pause);
+
+	hw->original_fc = hw->fc;
+
+	DEBUGOUT("After fix-ups FlowControl is now = %x\n", hw->fc);
+
+	/* Take the 4 bits from EEPROM word 0x0F that determine the initial
+	 * polarity value for the SW controlled pins, and setup the
+	 * Extended Device Control reg with that info.
+	 * This is needed because one of the SW controlled pins is used for
+	 * signal detection.  So this should be done before e1000_setup_pcs_link()
+	 * or e1000_phy_setup() is called.
+	 */
+	if (hw->mac_type == e1000_82543) {
+		ctrl_ext = ((eeprom_data & EEPROM_WORD0F_SWPDIO_EXT) <<
+			    SWDPIO__EXT_SHIFT);
+		E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
+	}
+
+	/* Call the necessary subroutine to configure the link. */
+	ret_val = (hw->media_type == e1000_media_type_fiber) ?
+	    e1000_setup_fiber_link(nic) : e1000_setup_copper_link(nic);
+	if (ret_val < 0) {
+		return ret_val;
+	}
+
+	/* Initialize the flow control address, type, and PAUSE timer
+	 * registers to their default values.  This is done even if flow
+	 * control is disabled, because it does not hurt anything to
+	 * initialize these registers.
+	 */
+	DEBUGOUT
+	    ("Initializing the Flow Control address, type and timer regs\n");
+
+	E1000_WRITE_REG(hw, FCAL, FLOW_CONTROL_ADDRESS_LOW);
+	E1000_WRITE_REG(hw, FCAH, FLOW_CONTROL_ADDRESS_HIGH);
+	E1000_WRITE_REG(hw, FCT, FLOW_CONTROL_TYPE);
+	E1000_WRITE_REG(hw, FCTTV, hw->fc_pause_time);
+
+	/* Set the flow control receive threshold registers.  Normally,
+	 * these registers will be set to a default threshold that may be
+	 * adjusted later by the driver's runtime code.  However, if the
+	 * ability to transmit pause frames in not enabled, then these
+	 * registers will be set to 0. 
+	 */
+	if (!(hw->fc & e1000_fc_tx_pause)) {
+		E1000_WRITE_REG(hw, FCRTL, 0);
+		E1000_WRITE_REG(hw, FCRTH, 0);
+	} else {
+		/* We need to set up the Receive Threshold high and low water marks
+		 * as well as (optionally) enabling the transmission of XON frames.
+		 */
+		if (hw->fc_send_xon) {
+			E1000_WRITE_REG(hw, FCRTL,
+					(hw->fc_low_water | E1000_FCRTL_XONE));
+			E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water);
+		} else {
+			E1000_WRITE_REG(hw, FCRTL, hw->fc_low_water);
+			E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water);
+		}
+	}
+	return ret_val;
+}
+
+/******************************************************************************
+ * Sets up link for a fiber based adapter
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Manipulates Physical Coding Sublayer functions in order to configure
+ * link. Assumes the hardware has been previously reset and the transmitter
+ * and receiver are not enabled.
+ *****************************************************************************/
+static int
+e1000_setup_fiber_link(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+	uint32_t ctrl;
+	uint32_t status;
+	uint32_t txcw = 0;
+	uint32_t i;
+	uint32_t signal;
+	int32_t ret_val;
+
+	DEBUGFUNC();
+	/* On adapters with a MAC newer that 82544, SW Defineable pin 1 will be 
+	 * set when the optics detect a signal. On older adapters, it will be 
+	 * cleared when there is a signal
+	 */
+	ctrl = E1000_READ_REG(hw, CTRL);
+	if ((hw->mac_type > e1000_82544) && !(ctrl & E1000_CTRL_ILOS))
+		signal = E1000_CTRL_SWDPIN1;
+	else
+		signal = 0;
+
+	printf("signal for %s is %x (ctrl %08x)!!!!\n", nic->name, signal,
+	       ctrl);
+	/* Take the link out of reset */
+	ctrl &= ~(E1000_CTRL_LRST);
+
+	e1000_config_collision_dist(hw);
+
+	/* Check for a software override of the flow control settings, and setup
+	 * the device accordingly.  If auto-negotiation is enabled, then software
+	 * will have to set the "PAUSE" bits to the correct value in the Tranmsit
+	 * Config Word Register (TXCW) and re-start auto-negotiation.  However, if
+	 * auto-negotiation is disabled, then software will have to manually 
+	 * configure the two flow control enable bits in the CTRL register.
+	 *
+	 * The possible values of the "fc" parameter are:
+	 *      0:  Flow control is completely disabled
+	 *      1:  Rx flow control is enabled (we can receive pause frames, but 
+	 *          not send pause frames).
+	 *      2:  Tx flow control is enabled (we can send pause frames but we do
+	 *          not support receiving pause frames).
+	 *      3:  Both Rx and TX flow control (symmetric) are enabled.
+	 */
+	switch (hw->fc) {
+	case e1000_fc_none:
+		/* Flow control is completely disabled by a software over-ride. */
+		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD);
+		break;
+	case e1000_fc_rx_pause:
+		/* RX Flow control is enabled and TX Flow control is disabled by a 
+		 * software over-ride. Since there really isn't a way to advertise 
+		 * that we are capable of RX Pause ONLY, we will advertise that we
+		 * support both symmetric and asymmetric RX PAUSE. Later, we will
+		 *  disable the adapter's ability to send PAUSE frames.
+		 */
+		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
+		break;
+	case e1000_fc_tx_pause:
+		/* TX Flow control is enabled, and RX Flow control is disabled, by a 
+		 * software over-ride.
+		 */
+		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR);
+		break;
+	case e1000_fc_full:
+		/* Flow control (both RX and TX) is enabled by a software over-ride. */
+		txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
+		break;
+	default:
+		DEBUGOUT("Flow control param set incorrectly\n");
+		return -E1000_ERR_CONFIG;
+		break;
+	}
+
+	/* Since auto-negotiation is enabled, take the link out of reset (the link
+	 * will be in reset, because we previously reset the chip). This will
+	 * restart auto-negotiation.  If auto-neogtiation is successful then the
+	 * link-up status bit will be set and the flow control enable bits (RFCE
+	 * and TFCE) will be set according to their negotiated value.
+	 */
+	DEBUGOUT("Auto-negotiation enabled (%#x)\n", txcw);
+
+	E1000_WRITE_REG(hw, TXCW, txcw);
+	E1000_WRITE_REG(hw, CTRL, ctrl);
+	E1000_WRITE_FLUSH(hw);
+
+	hw->txcw = txcw;
+	mdelay(1);
+
+	/* If we have a signal (the cable is plugged in) then poll for a "Link-Up"
+	 * indication in the Device Status Register.  Time-out if a link isn't 
+	 * seen in 500 milliseconds seconds (Auto-negotiation should complete in 
+	 * less than 500 milliseconds even if the other end is doing it in SW).
+	 */
+	if ((E1000_READ_REG(hw, CTRL) & E1000_CTRL_SWDPIN1) == signal) {
+		DEBUGOUT("Looking for Link\n");
+		for (i = 0; i < (LINK_UP_TIMEOUT / 10); i++) {
+			mdelay(10);
+			status = E1000_READ_REG(hw, STATUS);
+			if (status & E1000_STATUS_LU)
+				break;
+		}
+		if (i == (LINK_UP_TIMEOUT / 10)) {
+			/* AutoNeg failed to achieve a link, so we'll call 
+			 * e1000_check_for_link. This routine will force the link up if we
+			 * detect a signal. This will allow us to communicate with
+			 * non-autonegotiating link partners.
+			 */
+			DEBUGOUT("Never got a valid link from auto-neg!!!\n");
+			hw->autoneg_failed = 1;
+			ret_val = e1000_check_for_link(nic);
+			if (ret_val < 0) {
+				DEBUGOUT("Error while checking for link\n");
+				return ret_val;
+			}
+			hw->autoneg_failed = 0;
+		} else {
+			hw->autoneg_failed = 0;
+			DEBUGOUT("Valid Link Found\n");
+		}
+	} else {
+		DEBUGOUT("No Signal Detected\n");
+		return -E1000_ERR_NOLINK;
+	}
+	return 0;
+}
+
+/******************************************************************************
+* Detects which PHY is present and the speed and duplex
+*
+* hw - Struct containing variables accessed by shared code
+******************************************************************************/
+static int
+e1000_setup_copper_link(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+	uint32_t ctrl;
+	int32_t ret_val;
+	uint16_t i;
+	uint16_t phy_data;
+
+	DEBUGFUNC();
+
+	ctrl = E1000_READ_REG(hw, CTRL);
+	/* With 82543, we need to force speed and duplex on the MAC equal to what
+	 * the PHY speed and duplex configuration is. In addition, we need to
+	 * perform a hardware reset on the PHY to take it out of reset.
+	 */
+	if (hw->mac_type > e1000_82543) {
+		ctrl |= E1000_CTRL_SLU;
+		ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
+		E1000_WRITE_REG(hw, CTRL, ctrl);
+	} else {
+		ctrl |=
+		    (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU);
+		E1000_WRITE_REG(hw, CTRL, ctrl);
+		e1000_phy_hw_reset(hw);
+	}
+
+	/* Make sure we have a valid PHY */
+	ret_val = e1000_detect_gig_phy(hw);
+	if (ret_val < 0) {
+		DEBUGOUT("Error, did not detect valid phy.\n");
+		return ret_val;
+	}
+	DEBUGOUT("Phy ID = %x \n", hw->phy_id);
+
+	/* Enable CRS on TX. This must be set for half-duplex operation. */
+	if (e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data) < 0) {
+		DEBUGOUT("PHY Read Error\n");
+		return -E1000_ERR_PHY;
+	}
+	phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
+
+#if 0
+	/* Options:
+	 *   MDI/MDI-X = 0 (default)
+	 *   0 - Auto for all speeds
+	 *   1 - MDI mode
+	 *   2 - MDI-X mode
+	 *   3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
+	 */
+	phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
+	switch (hw->mdix) {
+	case 1:
+		phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE;
+		break;
+	case 2:
+		phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE;
+		break;
+	case 3:
+		phy_data |= M88E1000_PSCR_AUTO_X_1000T;
+		break;
+	case 0:
+	default:
+		phy_data |= M88E1000_PSCR_AUTO_X_MODE;
+		break;
+	}
+#else
+	phy_data |= M88E1000_PSCR_AUTO_X_MODE;
+#endif
+
+#if 0
+	/* Options:
+	 *   disable_polarity_correction = 0 (default)
+	 *       Automatic Correction for Reversed Cable Polarity
+	 *   0 - Disabled
+	 *   1 - Enabled
+	 */
+	phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL;
+	if (hw->disable_polarity_correction == 1)
+		phy_data |= M88E1000_PSCR_POLARITY_REVERSAL;
+#else
+	phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL;
+#endif
+	if (e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data) < 0) {
+		DEBUGOUT("PHY Write Error\n");
+		return -E1000_ERR_PHY;
+	}
+
+	/* Force TX_CLK in the Extended PHY Specific Control Register
+	 * to 25MHz clock.
+	 */
+	if (e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data) < 0) {
+		DEBUGOUT("PHY Read Error\n");
+		return -E1000_ERR_PHY;
+	}
+	phy_data |= M88E1000_EPSCR_TX_CLK_25;
+	/* Configure Master and Slave downshift values */
+	phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK |
+		      M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK);
+	phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X |
+		     M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X);
+	if (e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data) < 0) {
+		DEBUGOUT("PHY Write Error\n");
+		return -E1000_ERR_PHY;
+	}
+
+	/* SW Reset the PHY so all changes take effect */
+	ret_val = e1000_phy_reset(hw);
+	if (ret_val < 0) {
+		DEBUGOUT("Error Resetting the PHY\n");
+		return ret_val;
+	}
+
+	/* Options:
+	 *   autoneg = 1 (default)
+	 *      PHY will advertise value(s) parsed from
+	 *      autoneg_advertised and fc
+	 *   autoneg = 0
+	 *      PHY will be set to 10H, 10F, 100H, or 100F
+	 *      depending on value parsed from forced_speed_duplex.
+	 */
+
+	/* Is autoneg enabled?  This is enabled by default or by software override.
+	 * If so, call e1000_phy_setup_autoneg routine to parse the
+	 * autoneg_advertised and fc options. If autoneg is NOT enabled, then the
+	 * user should have provided a speed/duplex override.  If so, then call
+	 * e1000_phy_force_speed_duplex to parse and set this up.
+	 */
+	/* Perform some bounds checking on the hw->autoneg_advertised
+	 * parameter.  If this variable is zero, then set it to the default.
+	 */
+	hw->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT;
+
+	/* If autoneg_advertised is zero, we assume it was not defaulted
+	 * by the calling code so we set to advertise full capability.
+	 */
+	if (hw->autoneg_advertised == 0)
+		hw->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+
+	DEBUGOUT("Reconfiguring auto-neg advertisement params\n");
+	ret_val = e1000_phy_setup_autoneg(hw);
+	if (ret_val < 0) {
+		DEBUGOUT("Error Setting up Auto-Negotiation\n");
+		return ret_val;
+	}
+	DEBUGOUT("Restarting Auto-Neg\n");
+
+	/* Restart auto-negotiation by setting the Auto Neg Enable bit and
+	 * the Auto Neg Restart bit in the PHY control register.
+	 */
+	if (e1000_read_phy_reg(hw, PHY_CTRL, &phy_data) < 0) {
+		DEBUGOUT("PHY Read Error\n");
+		return -E1000_ERR_PHY;
+	}
+	phy_data |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG);
+	if (e1000_write_phy_reg(hw, PHY_CTRL, phy_data) < 0) {
+		DEBUGOUT("PHY Write Error\n");
+		return -E1000_ERR_PHY;
+	}
+#if 0
+	/* Does the user want to wait for Auto-Neg to complete here, or
+	 * check at a later time (for example, callback routine).
+	 */
+	if (hw->wait_autoneg_complete) {
+		ret_val = e1000_wait_autoneg(hw);
+		if (ret_val < 0) {
+			DEBUGOUT
+			    ("Error while waiting for autoneg to complete\n");
+			return ret_val;
+		}
+	}
+#else
+	/* If we do not wait for autonegtation to complete I 
+	 * do not see a valid link status.
+	 */
+	ret_val = e1000_wait_autoneg(hw);
+	if (ret_val < 0) {
+		DEBUGOUT("Error while waiting for autoneg to complete\n");
+		return ret_val;
+	}
+#endif
+
+	/* Check link status. Wait up to 100 microseconds for link to become
+	 * valid.
+	 */
+	for (i = 0; i < 10; i++) {
+		if (e1000_read_phy_reg(hw, PHY_STATUS, &phy_data) < 0) {
+			DEBUGOUT("PHY Read Error\n");
+			return -E1000_ERR_PHY;
+		}
+		if (e1000_read_phy_reg(hw, PHY_STATUS, &phy_data) < 0) {
+			DEBUGOUT("PHY Read Error\n");
+			return -E1000_ERR_PHY;
+		}
+		if (phy_data & MII_SR_LINK_STATUS) {
+			/* We have link, so we need to finish the config process:
+			 *   1) Set up the MAC to the current PHY speed/duplex
+			 *      if we are on 82543.  If we
+			 *      are on newer silicon, we only need to configure
+			 *      collision distance in the Transmit Control Register.
+			 *   2) Set up flow control on the MAC to that established with
+			 *      the link partner.
+			 */
+			if (hw->mac_type >= e1000_82544) {
+				e1000_config_collision_dist(hw);
+			} else {
+				ret_val = e1000_config_mac_to_phy(hw);
+				if (ret_val < 0) {
+					DEBUGOUT
+					    ("Error configuring MAC to PHY settings\n");
+					return ret_val;
+				}
+			}
+			ret_val = e1000_config_fc_after_link_up(hw);
+			if (ret_val < 0) {
+				DEBUGOUT("Error Configuring Flow Control\n");
+				return ret_val;
+			}
+			DEBUGOUT("Valid link established!!!\n");
+			return 0;
+		}
+		udelay(10);
+	}
+
+	DEBUGOUT("Unable to establish link!!!\n");
+	return -E1000_ERR_NOLINK;
+}
+
+/******************************************************************************
+* Configures PHY autoneg and flow control advertisement settings
+*
+* hw - Struct containing variables accessed by shared code
+******************************************************************************/
+static int
+e1000_phy_setup_autoneg(struct e1000_hw *hw)
+{
+	uint16_t mii_autoneg_adv_reg;
+	uint16_t mii_1000t_ctrl_reg;
+
+	DEBUGFUNC();
+
+	/* Read the MII Auto-Neg Advertisement Register (Address 4). */
+	if (e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg) < 0) {
+		DEBUGOUT("PHY Read Error\n");
+		return -E1000_ERR_PHY;
+	}
+
+	/* Read the MII 1000Base-T Control Register (Address 9). */
+	if (e1000_read_phy_reg(hw, PHY_1000T_CTRL, &mii_1000t_ctrl_reg) < 0) {
+		DEBUGOUT("PHY Read Error\n");
+		return -E1000_ERR_PHY;
+	}
+
+	/* Need to parse both autoneg_advertised and fc and set up
+	 * the appropriate PHY registers.  First we will parse for
+	 * autoneg_advertised software override.  Since we can advertise
+	 * a plethora of combinations, we need to check each bit
+	 * individually.
+	 */
+
+	/* First we clear all the 10/100 mb speed bits in the Auto-Neg
+	 * Advertisement Register (Address 4) and the 1000 mb speed bits in
+	 * the  1000Base-T Control Register (Address 9).
+	 */
+	mii_autoneg_adv_reg &= ~REG4_SPEED_MASK;
+	mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK;
+
+	DEBUGOUT("autoneg_advertised %x\n", hw->autoneg_advertised);
+
+	/* Do we want to advertise 10 Mb Half Duplex? */
+	if (hw->autoneg_advertised & ADVERTISE_10_HALF) {
+		DEBUGOUT("Advertise 10mb Half duplex\n");
+		mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS;
+	}
+
+	/* Do we want to advertise 10 Mb Full Duplex? */
+	if (hw->autoneg_advertised & ADVERTISE_10_FULL) {
+		DEBUGOUT("Advertise 10mb Full duplex\n");
+		mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS;
+	}
+
+	/* Do we want to advertise 100 Mb Half Duplex? */
+	if (hw->autoneg_advertised & ADVERTISE_100_HALF) {
+		DEBUGOUT("Advertise 100mb Half duplex\n");
+		mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS;
+	}
+
+	/* Do we want to advertise 100 Mb Full Duplex? */
+	if (hw->autoneg_advertised & ADVERTISE_100_FULL) {
+		DEBUGOUT("Advertise 100mb Full duplex\n");
+		mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS;
+	}
+
+	/* We do not allow the Phy to advertise 1000 Mb Half Duplex */
+	if (hw->autoneg_advertised & ADVERTISE_1000_HALF) {
+		DEBUGOUT
+		    ("Advertise 1000mb Half duplex requested, request denied!\n");
+	}
+
+	/* Do we want to advertise 1000 Mb Full Duplex? */
+	if (hw->autoneg_advertised & ADVERTISE_1000_FULL) {
+		DEBUGOUT("Advertise 1000mb Full duplex\n");
+		mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS;
+	}
+
+	/* Check for a software override of the flow control settings, and
+	 * setup the PHY advertisement registers accordingly.  If
+	 * auto-negotiation is enabled, then software will have to set the
+	 * "PAUSE" bits to the correct value in the Auto-Negotiation
+	 * Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation.
+	 *
+	 * The possible values of the "fc" parameter are:
+	 *      0:  Flow control is completely disabled
+	 *      1:  Rx flow control is enabled (we can receive pause frames
+	 *          but not send pause frames).
+	 *      2:  Tx flow control is enabled (we can send pause frames
+	 *          but we do not support receiving pause frames).
+	 *      3:  Both Rx and TX flow control (symmetric) are enabled.
+	 *  other:  No software override.  The flow control configuration
+	 *          in the EEPROM is used.
+	 */
+	switch (hw->fc) {
+	case e1000_fc_none:	/* 0 */
+		/* Flow control (RX & TX) is completely disabled by a
+		 * software over-ride.
+		 */
+		mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE);
+		break;
+	case e1000_fc_rx_pause:	/* 1 */
+		/* RX Flow control is enabled, and TX Flow control is
+		 * disabled, by a software over-ride.
+		 */
+		/* Since there really isn't a way to advertise that we are
+		 * capable of RX Pause ONLY, we will advertise that we
+		 * support both symmetric and asymmetric RX PAUSE.  Later
+		 * (in e1000_config_fc_after_link_up) we will disable the
+		 *hw's ability to send PAUSE frames.
+		 */
+		mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE);
+		break;
+	case e1000_fc_tx_pause:	/* 2 */
+		/* TX Flow control is enabled, and RX Flow control is
+		 * disabled, by a software over-ride.
+		 */
+		mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR;
+		mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE;
+		break;
+	case e1000_fc_full:	/* 3 */
+		/* Flow control (both RX and TX) is enabled by a software
+		 * over-ride.
+		 */
+		mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE);
+		break;
+	default:
+		DEBUGOUT("Flow control param set incorrectly\n");
+		return -E1000_ERR_CONFIG;
+	}
+
+	if (e1000_write_phy_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg) < 0) {
+		DEBUGOUT("PHY Write Error\n");
+		return -E1000_ERR_PHY;
+	}
+
+	DEBUGOUT("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg);
+
+	if (e1000_write_phy_reg(hw, PHY_1000T_CTRL, mii_1000t_ctrl_reg) < 0) {
+		DEBUGOUT("PHY Write Error\n");
+		return -E1000_ERR_PHY;
+	}
+	return 0;
+}
+
+/******************************************************************************
+* Sets the collision distance in the Transmit Control register
+*
+* hw - Struct containing variables accessed by shared code
+*
+* Link should have been established previously. Reads the speed and duplex
+* information from the Device Status register.
+******************************************************************************/
+static void
+e1000_config_collision_dist(struct e1000_hw *hw)
+{
+	uint32_t tctl;
+
+	tctl = E1000_READ_REG(hw, TCTL);
+
+	tctl &= ~E1000_TCTL_COLD;
+	tctl |= E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT;
+
+	E1000_WRITE_REG(hw, TCTL, tctl);
+	E1000_WRITE_FLUSH(hw);
+}
+
+/******************************************************************************
+* Sets MAC speed and duplex settings to reflect the those in the PHY
+*
+* hw - Struct containing variables accessed by shared code
+* mii_reg - data to write to the MII control register
+*
+* The contents of the PHY register containing the needed information need to
+* be passed in.
+******************************************************************************/
+static int
+e1000_config_mac_to_phy(struct e1000_hw *hw)
+{
+	uint32_t ctrl;
+	uint16_t phy_data;
+
+	DEBUGFUNC();
+
+	/* Read the Device Control Register and set the bits to Force Speed
+	 * and Duplex.
+	 */
+	ctrl = E1000_READ_REG(hw, CTRL);
+	ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
+	ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS);
+
+	/* Set up duplex in the Device Control and Transmit Control
+	 * registers depending on negotiated values.
+	 */
+	if (e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data) < 0) {
+		DEBUGOUT("PHY Read Error\n");
+		return -E1000_ERR_PHY;
+	}
+	if (phy_data & M88E1000_PSSR_DPLX)
+		ctrl |= E1000_CTRL_FD;
+	else
+		ctrl &= ~E1000_CTRL_FD;
+
+	e1000_config_collision_dist(hw);
+
+	/* Set up speed in the Device Control register depending on
+	 * negotiated values.
+	 */
+	if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS)
+		ctrl |= E1000_CTRL_SPD_1000;
+	else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS)
+		ctrl |= E1000_CTRL_SPD_100;
+	/* Write the configured values back to the Device Control Reg. */
+	E1000_WRITE_REG(hw, CTRL, ctrl);
+	return 0;
+}
+
+/******************************************************************************
+ * Forces the MAC's flow control settings.
+ * 
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Sets the TFCE and RFCE bits in the device control register to reflect
+ * the adapter settings. TFCE and RFCE need to be explicitly set by
+ * software when a Copper PHY is used because autonegotiation is managed
+ * by the PHY rather than the MAC. Software must also configure these
+ * bits when link is forced on a fiber connection.
+ *****************************************************************************/
+static int
+e1000_force_mac_fc(struct e1000_hw *hw)
+{
+	uint32_t ctrl;
+
+	DEBUGFUNC();
+
+	/* Get the current configuration of the Device Control Register */
+	ctrl = E1000_READ_REG(hw, CTRL);
+
+	/* Because we didn't get link via the internal auto-negotiation
+	 * mechanism (we either forced link or we got link via PHY
+	 * auto-neg), we have to manually enable/disable transmit an
+	 * receive flow control.
+	 *
+	 * The "Case" statement below enables/disable flow control
+	 * according to the "hw->fc" parameter.
+	 *
+	 * The possible values of the "fc" parameter are:
+	 *      0:  Flow control is completely disabled
+	 *      1:  Rx flow control is enabled (we can receive pause
+	 *          frames but not send pause frames).
+	 *      2:  Tx flow control is enabled (we can send pause frames
+	 *          frames but we do not receive pause frames).
+	 *      3:  Both Rx and TX flow control (symmetric) is enabled.
+	 *  other:  No other values should be possible at this point.
+	 */
+
+	switch (hw->fc) {
+	case e1000_fc_none:
+		ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE));
+		break;
+	case e1000_fc_rx_pause:
+		ctrl &= (~E1000_CTRL_TFCE);
+		ctrl |= E1000_CTRL_RFCE;
+		break;
+	case e1000_fc_tx_pause:
+		ctrl &= (~E1000_CTRL_RFCE);
+		ctrl |= E1000_CTRL_TFCE;
+		break;
+	case e1000_fc_full:
+		ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE);
+		break;
+	default:
+		DEBUGOUT("Flow control param set incorrectly\n");
+		return -E1000_ERR_CONFIG;
+	}
+
+	/* Disable TX Flow Control for 82542 (rev 2.0) */
+	if (hw->mac_type == e1000_82542_rev2_0)
+		ctrl &= (~E1000_CTRL_TFCE);
+
+	E1000_WRITE_REG(hw, CTRL, ctrl);
+	return 0;
+}
+
+/******************************************************************************
+ * Configures flow control settings after link is established
+ * 
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Should be called immediately after a valid link has been established.
+ * Forces MAC flow control settings if link was forced. When in MII/GMII mode
+ * and autonegotiation is enabled, the MAC flow control settings will be set
+ * based on the flow control negotiated by the PHY. In TBI mode, the TFCE
+ * and RFCE bits will be automaticaly set to the negotiated flow control mode.
+ *****************************************************************************/
+static int
+e1000_config_fc_after_link_up(struct e1000_hw *hw)
+{
+	int32_t ret_val;
+	uint16_t mii_status_reg;
+	uint16_t mii_nway_adv_reg;
+	uint16_t mii_nway_lp_ability_reg;
+	uint16_t speed;
+	uint16_t duplex;
+
+	DEBUGFUNC();
+
+	/* Check for the case where we have fiber media and auto-neg failed
+	 * so we had to force link.  In this case, we need to force the
+	 * configuration of the MAC to match the "fc" parameter.
+	 */
+	if ((hw->media_type == e1000_media_type_fiber) && (hw->autoneg_failed)) {
+		ret_val = e1000_force_mac_fc(hw);
+		if (ret_val < 0) {
+			DEBUGOUT("Error forcing flow control settings\n");
+			return ret_val;
+		}
+	}
+
+	/* Check for the case where we have copper media and auto-neg is
+	 * enabled.  In this case, we need to check and see if Auto-Neg
+	 * has completed, and if so, how the PHY and link partner has
+	 * flow control configured.
+	 */
+	if (hw->media_type == e1000_media_type_copper) {
+		/* Read the MII Status Register and check to see if AutoNeg
+		 * has completed.  We read this twice because this reg has
+		 * some "sticky" (latched) bits.
+		 */
+		if (e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg) < 0) {
+			DEBUGOUT("PHY Read Error \n");
+			return -E1000_ERR_PHY;
+		}
+		if (e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg) < 0) {
+			DEBUGOUT("PHY Read Error \n");
+			return -E1000_ERR_PHY;
+		}
+
+		if (mii_status_reg & MII_SR_AUTONEG_COMPLETE) {
+			/* The AutoNeg process has completed, so we now need to
+			 * read both the Auto Negotiation Advertisement Register
+			 * (Address 4) and the Auto_Negotiation Base Page Ability
+			 * Register (Address 5) to determine how flow control was
+			 * negotiated.
+			 */
+			if (e1000_read_phy_reg
+			    (hw, PHY_AUTONEG_ADV, &mii_nway_adv_reg) < 0) {
+				DEBUGOUT("PHY Read Error\n");
+				return -E1000_ERR_PHY;
+			}
+			if (e1000_read_phy_reg
+			    (hw, PHY_LP_ABILITY,
+			     &mii_nway_lp_ability_reg) < 0) {
+				DEBUGOUT("PHY Read Error\n");
+				return -E1000_ERR_PHY;
+			}
+
+			/* Two bits in the Auto Negotiation Advertisement Register
+			 * (Address 4) and two bits in the Auto Negotiation Base
+			 * Page Ability Register (Address 5) determine flow control
+			 * for both the PHY and the link partner.  The following
+			 * table, taken out of the IEEE 802.3ab/D6.0 dated March 25,
+			 * 1999, describes these PAUSE resolution bits and how flow
+			 * control is determined based upon these settings.
+			 * NOTE:  DC = Don't Care
+			 *
+			 *   LOCAL DEVICE  |   LINK PARTNER
+			 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution
+			 *-------|---------|-------|---------|--------------------
+			 *   0   |    0    |  DC   |   DC    | e1000_fc_none
+			 *   0   |    1    |   0   |   DC    | e1000_fc_none
+			 *   0   |    1    |   1   |    0    | e1000_fc_none
+			 *   0   |    1    |   1   |    1    | e1000_fc_tx_pause
+			 *   1   |    0    |   0   |   DC    | e1000_fc_none
+			 *   1   |   DC    |   1   |   DC    | e1000_fc_full
+			 *   1   |    1    |   0   |    0    | e1000_fc_none
+			 *   1   |    1    |   0   |    1    | e1000_fc_rx_pause
+			 *
+			 */
+			/* Are both PAUSE bits set to 1?  If so, this implies
+			 * Symmetric Flow Control is enabled at both ends.  The
+			 * ASM_DIR bits are irrelevant per the spec.
+			 *
+			 * For Symmetric Flow Control:
+			 *
+			 *   LOCAL DEVICE  |   LINK PARTNER
+			 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
+			 *-------|---------|-------|---------|--------------------
+			 *   1   |   DC    |   1   |   DC    | e1000_fc_full
+			 *
+			 */
+			if ((mii_nway_adv_reg & NWAY_AR_PAUSE) &&
+			    (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) {
+				/* Now we need to check if the user selected RX ONLY
+				 * of pause frames.  In this case, we had to advertise
+				 * FULL flow control because we could not advertise RX
+				 * ONLY. Hence, we must now check to see if we need to
+				 * turn OFF  the TRANSMISSION of PAUSE frames.
+				 */
+				if (hw->original_fc == e1000_fc_full) {
+					hw->fc = e1000_fc_full;
+					DEBUGOUT("Flow Control = FULL.\r\n");
+				} else {
+					hw->fc = e1000_fc_rx_pause;
+					DEBUGOUT
+					    ("Flow Control = RX PAUSE frames only.\r\n");
+				}
+			}
+			/* For receiving PAUSE frames ONLY.
+			 *
+			 *   LOCAL DEVICE  |   LINK PARTNER
+			 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
+			 *-------|---------|-------|---------|--------------------
+			 *   0   |    1    |   1   |    1    | e1000_fc_tx_pause
+			 *
+			 */
+			else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) &&
+				 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
+				 (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
+				 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR))
+			{
+				hw->fc = e1000_fc_tx_pause;
+				DEBUGOUT
+				    ("Flow Control = TX PAUSE frames only.\r\n");
+			}
+			/* For transmitting PAUSE frames ONLY.
+			 *
+			 *   LOCAL DEVICE  |   LINK PARTNER
+			 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
+			 *-------|---------|-------|---------|--------------------
+			 *   1   |    1    |   0   |    1    | e1000_fc_rx_pause
+			 *
+			 */
+			else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) &&
+				 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
+				 !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
+				 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR))
+			{
+				hw->fc = e1000_fc_rx_pause;
+				DEBUGOUT
+				    ("Flow Control = RX PAUSE frames only.\r\n");
+			}
+			/* Per the IEEE spec, at this point flow control should be
+			 * disabled.  However, we want to consider that we could
+			 * be connected to a legacy switch that doesn't advertise
+			 * desired flow control, but can be forced on the link
+			 * partner.  So if we advertised no flow control, that is
+			 * what we will resolve to.  If we advertised some kind of
+			 * receive capability (Rx Pause Only or Full Flow Control)
+			 * and the link partner advertised none, we will configure
+			 * ourselves to enable Rx Flow Control only.  We can do
+			 * this safely for two reasons:  If the link partner really
+			 * didn't want flow control enabled, and we enable Rx, no
+			 * harm done since we won't be receiving any PAUSE frames
+			 * anyway.  If the intent on the link partner was to have
+			 * flow control enabled, then by us enabling RX only, we
+			 * can at least receive pause frames and process them.
+			 * This is a good idea because in most cases, since we are
+			 * predominantly a server NIC, more times than not we will
+			 * be asked to delay transmission of packets than asking
+			 * our link partner to pause transmission of frames.
+			 */
+			else if (hw->original_fc == e1000_fc_none ||
+				 hw->original_fc == e1000_fc_tx_pause) {
+				hw->fc = e1000_fc_none;
+				DEBUGOUT("Flow Control = NONE.\r\n");
+			} else {
+				hw->fc = e1000_fc_rx_pause;
+				DEBUGOUT
+				    ("Flow Control = RX PAUSE frames only.\r\n");
+			}
+
+			/* Now we need to do one last check...  If we auto-
+			 * negotiated to HALF DUPLEX, flow control should not be
+			 * enabled per IEEE 802.3 spec.
+			 */
+			e1000_get_speed_and_duplex(hw, &speed, &duplex);
+
+			if (duplex == HALF_DUPLEX)
+				hw->fc = e1000_fc_none;
+
+			/* Now we call a subroutine to actually force the MAC
+			 * controller to use the correct flow control settings.
+			 */
+			ret_val = e1000_force_mac_fc(hw);
+			if (ret_val < 0) {
+				DEBUGOUT
+				    ("Error forcing flow control settings\n");
+				return ret_val;
+			}
+		} else {
+			DEBUGOUT
+			    ("Copper PHY and Auto Neg has not completed.\r\n");
+		}
+	}
+	return 0;
+}
+
+/******************************************************************************
+ * Checks to see if the link status of the hardware has changed.
+ *
+ * hw - Struct containing variables accessed by shared code
+ *
+ * Called by any function that needs to check the link status of the adapter.
+ *****************************************************************************/
+static int
+e1000_check_for_link(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+	uint32_t rxcw;
+	uint32_t ctrl;
+	uint32_t status;
+	uint32_t rctl;
+	uint32_t signal;
+	int32_t ret_val;
+	uint16_t phy_data;
+	uint16_t lp_capability;
+
+	DEBUGFUNC();
+
+	/* On adapters with a MAC newer that 82544, SW Defineable pin 1 will be 
+	 * set when the optics detect a signal. On older adapters, it will be 
+	 * cleared when there is a signal
+	 */
+	ctrl = E1000_READ_REG(hw, CTRL);
+	if ((hw->mac_type > e1000_82544) && !(ctrl & E1000_CTRL_ILOS))
+		signal = E1000_CTRL_SWDPIN1;
+	else
+		signal = 0;
+
+	status = E1000_READ_REG(hw, STATUS);
+	rxcw = E1000_READ_REG(hw, RXCW);
+	DEBUGOUT("ctrl: %#08x status %#08x rxcw %#08x\n", ctrl, status, rxcw);
+
+	/* If we have a copper PHY then we only want to go out to the PHY
+	 * registers to see if Auto-Neg has completed and/or if our link
+	 * status has changed.  The get_link_status flag will be set if we
+	 * receive a Link Status Change interrupt or we have Rx Sequence
+	 * Errors.
+	 */
+	if ((hw->media_type == e1000_media_type_copper) && hw->get_link_status) {
+		/* First we want to see if the MII Status Register reports
+		 * link.  If so, then we want to get the current speed/duplex
+		 * of the PHY.
+		 * Read the register twice since the link bit is sticky.
+		 */
+		if (e1000_read_phy_reg(hw, PHY_STATUS, &phy_data) < 0) {
+			DEBUGOUT("PHY Read Error\n");
+			return -E1000_ERR_PHY;
+		}
+		if (e1000_read_phy_reg(hw, PHY_STATUS, &phy_data) < 0) {
+			DEBUGOUT("PHY Read Error\n");
+			return -E1000_ERR_PHY;
+		}
+
+		if (phy_data & MII_SR_LINK_STATUS) {
+			hw->get_link_status = FALSE;
+		} else {
+			/* No link detected */
+			return -E1000_ERR_NOLINK;
+		}
+
+		/* We have a M88E1000 PHY and Auto-Neg is enabled.  If we
+		 * have Si on board that is 82544 or newer, Auto
+		 * Speed Detection takes care of MAC speed/duplex
+		 * configuration.  So we only need to configure Collision
+		 * Distance in the MAC.  Otherwise, we need to force
+		 * speed/duplex on the MAC to the current PHY speed/duplex
+		 * settings.
+		 */
+		if (hw->mac_type >= e1000_82544)
+			e1000_config_collision_dist(hw);
+		else {
+			ret_val = e1000_config_mac_to_phy(hw);
+			if (ret_val < 0) {
+				DEBUGOUT
+				    ("Error configuring MAC to PHY settings\n");
+				return ret_val;
+			}
+		}
+
+		/* Configure Flow Control now that Auto-Neg has completed. First, we 
+		 * need to restore the desired flow control settings because we may
+		 * have had to re-autoneg with a different link partner.
+		 */
+		ret_val = e1000_config_fc_after_link_up(hw);
+		if (ret_val < 0) {
+			DEBUGOUT("Error configuring flow control\n");
+			return ret_val;
+		}
+
+		/* At this point we know that we are on copper and we have
+		 * auto-negotiated link.  These are conditions for checking the link
+		 * parter capability register.  We use the link partner capability to
+		 * determine if TBI Compatibility needs to be turned on or off.  If
+		 * the link partner advertises any speed in addition to Gigabit, then
+		 * we assume that they are GMII-based, and TBI compatibility is not
+		 * needed. If no other speeds are advertised, we assume the link
+		 * partner is TBI-based, and we turn on TBI Compatibility.
+		 */
+		if (hw->tbi_compatibility_en) {
+			if (e1000_read_phy_reg
+			    (hw, PHY_LP_ABILITY, &lp_capability) < 0) {
+				DEBUGOUT("PHY Read Error\n");
+				return -E1000_ERR_PHY;
+			}
+			if (lp_capability & (NWAY_LPAR_10T_HD_CAPS |
+					     NWAY_LPAR_10T_FD_CAPS |
+					     NWAY_LPAR_100TX_HD_CAPS |
+					     NWAY_LPAR_100TX_FD_CAPS |
+					     NWAY_LPAR_100T4_CAPS)) {
+				/* If our link partner advertises anything in addition to 
+				 * gigabit, we do not need to enable TBI compatibility.
+				 */
+				if (hw->tbi_compatibility_on) {
+					/* If we previously were in the mode, turn it off. */
+					rctl = E1000_READ_REG(hw, RCTL);
+					rctl &= ~E1000_RCTL_SBP;
+					E1000_WRITE_REG(hw, RCTL, rctl);
+					hw->tbi_compatibility_on = FALSE;
+				}
+			} else {
+				/* If TBI compatibility is was previously off, turn it on. For
+				 * compatibility with a TBI link partner, we will store bad
+				 * packets. Some frames have an additional byte on the end and
+				 * will look like CRC errors to to the hardware.
+				 */
+				if (!hw->tbi_compatibility_on) {
+					hw->tbi_compatibility_on = TRUE;
+					rctl = E1000_READ_REG(hw, RCTL);
+					rctl |= E1000_RCTL_SBP;
+					E1000_WRITE_REG(hw, RCTL, rctl);
+				}
+			}
+		}
+	}
+	/* If we don't have link (auto-negotiation failed or link partner cannot
+	 * auto-negotiate), the cable is plugged in (we have signal), and our
+	 * link partner is not trying to auto-negotiate with us (we are receiving
+	 * idles or data), we need to force link up. We also need to give
+	 * auto-negotiation time to complete, in case the cable was just plugged
+	 * in. The autoneg_failed flag does this.
+	 */
+	else if ((hw->media_type == e1000_media_type_fiber) &&
+		 (!(status & E1000_STATUS_LU)) &&
+		 ((ctrl & E1000_CTRL_SWDPIN1) == signal) &&
+		 (!(rxcw & E1000_RXCW_C))) {
+		if (hw->autoneg_failed == 0) {
+			hw->autoneg_failed = 1;
+			return 0;
+		}
+		DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\r\n");
+
+		/* Disable auto-negotiation in the TXCW register */
+		E1000_WRITE_REG(hw, TXCW, (hw->txcw & ~E1000_TXCW_ANE));
+
+		/* Force link-up and also force full-duplex. */
+		ctrl = E1000_READ_REG(hw, CTRL);
+		ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
+		E1000_WRITE_REG(hw, CTRL, ctrl);
+
+		/* Configure Flow Control after forcing link up. */
+		ret_val = e1000_config_fc_after_link_up(hw);
+		if (ret_val < 0) {
+			DEBUGOUT("Error configuring flow control\n");
+			return ret_val;
+		}
+	}
+	/* If we are forcing link and we are receiving /C/ ordered sets, re-enable
+	 * auto-negotiation in the TXCW register and disable forced link in the
+	 * Device Control register in an attempt to auto-negotiate with our link
+	 * partner.
+	 */
+	else if ((hw->media_type == e1000_media_type_fiber) &&
+		 (ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
+		DEBUGOUT
+		    ("RXing /C/, enable AutoNeg and stop forcing link.\r\n");
+		E1000_WRITE_REG(hw, TXCW, hw->txcw);
+		E1000_WRITE_REG(hw, CTRL, (ctrl & ~E1000_CTRL_SLU));
+	}
+	return 0;
+}
+
+/******************************************************************************
+ * Detects the current speed and duplex settings of the hardware.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * speed - Speed of the connection
+ * duplex - Duplex setting of the connection
+ *****************************************************************************/
+static void
+e1000_get_speed_and_duplex(struct e1000_hw *hw,
+			   uint16_t * speed, uint16_t * duplex)
+{
+	uint32_t status;
+
+	DEBUGFUNC();
+
+	if (hw->mac_type >= e1000_82543) {
+		status = E1000_READ_REG(hw, STATUS);
+		if (status & E1000_STATUS_SPEED_1000) {
+			*speed = SPEED_1000;
+			DEBUGOUT("1000 Mbs, ");
+		} else if (status & E1000_STATUS_SPEED_100) {
+			*speed = SPEED_100;
+			DEBUGOUT("100 Mbs, ");
+		} else {
+			*speed = SPEED_10;
+			DEBUGOUT("10 Mbs, ");
+		}
+
+		if (status & E1000_STATUS_FD) {
+			*duplex = FULL_DUPLEX;
+			DEBUGOUT("Full Duplex\r\n");
+		} else {
+			*duplex = HALF_DUPLEX;
+			DEBUGOUT(" Half Duplex\r\n");
+		}
+	} else {
+		DEBUGOUT("1000 Mbs, Full Duplex\r\n");
+		*speed = SPEED_1000;
+		*duplex = FULL_DUPLEX;
+	}
+}
+
+/******************************************************************************
+* Blocks until autoneg completes or times out (~4.5 seconds)
+*
+* hw - Struct containing variables accessed by shared code
+******************************************************************************/
+static int
+e1000_wait_autoneg(struct e1000_hw *hw)
+{
+	uint16_t i;
+	uint16_t phy_data;
+
+	DEBUGFUNC();
+	DEBUGOUT("Waiting for Auto-Neg to complete.\n");
+
+	/* We will wait for autoneg to complete or 4.5 seconds to expire. */
+	for (i = PHY_AUTO_NEG_TIME; i > 0; i--) {
+		/* Read the MII Status Register and wait for Auto-Neg
+		 * Complete bit to be set.
+		 */
+		if (e1000_read_phy_reg(hw, PHY_STATUS, &phy_data) < 0) {
+			DEBUGOUT("PHY Read Error\n");
+			return -E1000_ERR_PHY;
+		}
+		if (e1000_read_phy_reg(hw, PHY_STATUS, &phy_data) < 0) {
+			DEBUGOUT("PHY Read Error\n");
+			return -E1000_ERR_PHY;
+		}
+		if (phy_data & MII_SR_AUTONEG_COMPLETE) {
+			DEBUGOUT("Auto-Neg complete.\n");
+			return 0;
+		}
+		mdelay(100);
+	}
+	DEBUGOUT("Auto-Neg timedout.\n");
+	return -E1000_ERR_TIMEOUT;
+}
+
+/******************************************************************************
+* Raises the Management Data Clock
+*
+* hw - Struct containing variables accessed by shared code
+* ctrl - Device control register's current value
+******************************************************************************/
+static void
+e1000_raise_mdi_clk(struct e1000_hw *hw, uint32_t * ctrl)
+{
+	/* Raise the clock input to the Management Data Clock (by setting the MDC
+	 * bit), and then delay 2 microseconds.
+	 */
+	E1000_WRITE_REG(hw, CTRL, (*ctrl | E1000_CTRL_MDC));
+	E1000_WRITE_FLUSH(hw);
+	udelay(2);
+}
+
+/******************************************************************************
+* Lowers the Management Data Clock
+*
+* hw - Struct containing variables accessed by shared code
+* ctrl - Device control register's current value
+******************************************************************************/
+static void
+e1000_lower_mdi_clk(struct e1000_hw *hw, uint32_t * ctrl)
+{
+	/* Lower the clock input to the Management Data Clock (by clearing the MDC
+	 * bit), and then delay 2 microseconds.
+	 */
+	E1000_WRITE_REG(hw, CTRL, (*ctrl & ~E1000_CTRL_MDC));
+	E1000_WRITE_FLUSH(hw);
+	udelay(2);
+}
+
+/******************************************************************************
+* Shifts data bits out to the PHY
+*
+* hw - Struct containing variables accessed by shared code
+* data - Data to send out to the PHY
+* count - Number of bits to shift out
+*
+* Bits are shifted out in MSB to LSB order.
+******************************************************************************/
+static void
+e1000_shift_out_mdi_bits(struct e1000_hw *hw, uint32_t data, uint16_t count)
+{
+	uint32_t ctrl;
+	uint32_t mask;
+
+	/* We need to shift "count" number of bits out to the PHY. So, the value
+	 * in the "data" parameter will be shifted out to the PHY one bit at a 
+	 * time. In order to do this, "data" must be broken down into bits.
+	 */
+	mask = 0x01;
+	mask <<= (count - 1);
+
+	ctrl = E1000_READ_REG(hw, CTRL);
+
+	/* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */
+	ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR);
+
+	while (mask) {
+		/* A "1" is shifted out to the PHY by setting the MDIO bit to "1" and
+		 * then raising and lowering the Management Data Clock. A "0" is
+		 * shifted out to the PHY by setting the MDIO bit to "0" and then
+		 * raising and lowering the clock.
+		 */
+		if (data & mask)
+			ctrl |= E1000_CTRL_MDIO;
+		else
+			ctrl &= ~E1000_CTRL_MDIO;
+
+		E1000_WRITE_REG(hw, CTRL, ctrl);
+		E1000_WRITE_FLUSH(hw);
+
+		udelay(2);
+
+		e1000_raise_mdi_clk(hw, &ctrl);
+		e1000_lower_mdi_clk(hw, &ctrl);
+
+		mask = mask >> 1;
+	}
+}
+
+/******************************************************************************
+* Shifts data bits in from the PHY
+*
+* hw - Struct containing variables accessed by shared code
+*
+* Bits are shifted in in MSB to LSB order. 
+******************************************************************************/
+static uint16_t
+e1000_shift_in_mdi_bits(struct e1000_hw *hw)
+{
+	uint32_t ctrl;
+	uint16_t data = 0;
+	uint8_t i;
+
+	/* In order to read a register from the PHY, we need to shift in a total
+	 * of 18 bits from the PHY. The first two bit (turnaround) times are used
+	 * to avoid contention on the MDIO pin when a read operation is performed.
+	 * These two bits are ignored by us and thrown away. Bits are "shifted in"
+	 * by raising the input to the Management Data Clock (setting the MDC bit),
+	 * and then reading the value of the MDIO bit.
+	 */
+	ctrl = E1000_READ_REG(hw, CTRL);
+
+	/* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as input. */
+	ctrl &= ~E1000_CTRL_MDIO_DIR;
+	ctrl &= ~E1000_CTRL_MDIO;
+
+	E1000_WRITE_REG(hw, CTRL, ctrl);
+	E1000_WRITE_FLUSH(hw);
+
+	/* Raise and Lower the clock before reading in the data. This accounts for
+	 * the turnaround bits. The first clock occurred when we clocked out the
+	 * last bit of the Register Address.
+	 */
+	e1000_raise_mdi_clk(hw, &ctrl);
+	e1000_lower_mdi_clk(hw, &ctrl);
+
+	for (data = 0, i = 0; i < 16; i++) {
+		data = data << 1;
+		e1000_raise_mdi_clk(hw, &ctrl);
+		ctrl = E1000_READ_REG(hw, CTRL);
+		/* Check to see if we shifted in a "1". */
+		if (ctrl & E1000_CTRL_MDIO)
+			data |= 1;
+		e1000_lower_mdi_clk(hw, &ctrl);
+	}
+
+	e1000_raise_mdi_clk(hw, &ctrl);
+	e1000_lower_mdi_clk(hw, &ctrl);
+
+	return data;
+}
+
+/*****************************************************************************
+* Reads the value from a PHY register
+*
+* hw - Struct containing variables accessed by shared code
+* reg_addr - address of the PHY register to read
+******************************************************************************/
+static int
+e1000_read_phy_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t * phy_data)
+{
+	uint32_t i;
+	uint32_t mdic = 0;
+	const uint32_t phy_addr = 1;
+
+	if (reg_addr > MAX_PHY_REG_ADDRESS) {
+		DEBUGOUT("PHY Address %d is out of range\n", reg_addr);
+		return -E1000_ERR_PARAM;
+	}
+
+	if (hw->mac_type > e1000_82543) {
+		/* Set up Op-code, Phy Address, and register address in the MDI
+		 * Control register.  The MAC will take care of interfacing with the
+		 * PHY to retrieve the desired data.
+		 */
+		mdic = ((reg_addr << E1000_MDIC_REG_SHIFT) |
+			(phy_addr << E1000_MDIC_PHY_SHIFT) |
+			(E1000_MDIC_OP_READ));
+
+		E1000_WRITE_REG(hw, MDIC, mdic);
+
+		/* Poll the ready bit to see if the MDI read completed */
+		for (i = 0; i < 64; i++) {
+			udelay(10);
+			mdic = E1000_READ_REG(hw, MDIC);
+			if (mdic & E1000_MDIC_READY)
+				break;
+		}
+		if (!(mdic & E1000_MDIC_READY)) {
+			DEBUGOUT("MDI Read did not complete\n");
+			return -E1000_ERR_PHY;
+		}
+		if (mdic & E1000_MDIC_ERROR) {
+			DEBUGOUT("MDI Error\n");
+			return -E1000_ERR_PHY;
+		}
+		*phy_data = (uint16_t) mdic;
+	} else {
+		/* We must first send a preamble through the MDIO pin to signal the
+		 * beginning of an MII instruction.  This is done by sending 32
+		 * consecutive "1" bits.
+		 */
+		e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE);
+
+		/* Now combine the next few fields that are required for a read
+		 * operation.  We use this method instead of calling the
+		 * e1000_shift_out_mdi_bits routine five different times. The format of
+		 * a MII read instruction consists of a shift out of 14 bits and is
+		 * defined as follows:
+		 *    <Preamble><SOF><Op Code><Phy Addr><Reg Addr>
+		 * followed by a shift in of 18 bits.  This first two bits shifted in
+		 * are TurnAround bits used to avoid contention on the MDIO pin when a
+		 * READ operation is performed.  These two bits are thrown away
+		 * followed by a shift in of 16 bits which contains the desired data.
+		 */
+		mdic = ((reg_addr) | (phy_addr << 5) |
+			(PHY_OP_READ << 10) | (PHY_SOF << 12));
+
+		e1000_shift_out_mdi_bits(hw, mdic, 14);
+
+		/* Now that we've shifted out the read command to the MII, we need to
+		 * "shift in" the 16-bit value (18 total bits) of the requested PHY
+		 * register address.
+		 */
+		*phy_data = e1000_shift_in_mdi_bits(hw);
+	}
+	return 0;
+}
+
+/******************************************************************************
+* Writes a value to a PHY register
+*
+* hw - Struct containing variables accessed by shared code
+* reg_addr - address of the PHY register to write
+* data - data to write to the PHY
+******************************************************************************/
+static int
+e1000_write_phy_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t phy_data)
+{
+	uint32_t i;
+	uint32_t mdic = 0;
+	const uint32_t phy_addr = 1;
+
+	if (reg_addr > MAX_PHY_REG_ADDRESS) {
+		DEBUGOUT("PHY Address %d is out of range\n", reg_addr);
+		return -E1000_ERR_PARAM;
+	}
+
+	if (hw->mac_type > e1000_82543) {
+		/* Set up Op-code, Phy Address, register address, and data intended
+		 * for the PHY register in the MDI Control register.  The MAC will take
+		 * care of interfacing with the PHY to send the desired data.
+		 */
+		mdic = (((uint32_t) phy_data) |
+			(reg_addr << E1000_MDIC_REG_SHIFT) |
+			(phy_addr << E1000_MDIC_PHY_SHIFT) |
+			(E1000_MDIC_OP_WRITE));
+
+		E1000_WRITE_REG(hw, MDIC, mdic);
+
+		/* Poll the ready bit to see if the MDI read completed */
+		for (i = 0; i < 64; i++) {
+			udelay(10);
+			mdic = E1000_READ_REG(hw, MDIC);
+			if (mdic & E1000_MDIC_READY)
+				break;
+		}
+		if (!(mdic & E1000_MDIC_READY)) {
+			DEBUGOUT("MDI Write did not complete\n");
+			return -E1000_ERR_PHY;
+		}
+	} else {
+		/* We'll need to use the SW defined pins to shift the write command
+		 * out to the PHY. We first send a preamble to the PHY to signal the
+		 * beginning of the MII instruction.  This is done by sending 32 
+		 * consecutive "1" bits.
+		 */
+		e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE);
+
+		/* Now combine the remaining required fields that will indicate a 
+		 * write operation. We use this method instead of calling the
+		 * e1000_shift_out_mdi_bits routine for each field in the command. The
+		 * format of a MII write instruction is as follows:
+		 * <Preamble><SOF><Op Code><Phy Addr><Reg Addr><Turnaround><Data>.
+		 */
+		mdic = ((PHY_TURNAROUND) | (reg_addr << 2) | (phy_addr << 7) |
+			(PHY_OP_WRITE << 12) | (PHY_SOF << 14));
+		mdic <<= 16;
+		mdic |= (uint32_t) phy_data;
+
+		e1000_shift_out_mdi_bits(hw, mdic, 32);
+	}
+	return 0;
+}
+
+/******************************************************************************
+* Returns the PHY to the power-on reset state
+*
+* hw - Struct containing variables accessed by shared code
+******************************************************************************/
+static void
+e1000_phy_hw_reset(struct e1000_hw *hw)
+{
+	uint32_t ctrl;
+	uint32_t ctrl_ext;
+
+	DEBUGFUNC();
+
+	DEBUGOUT("Resetting Phy...\n");
+
+	if (hw->mac_type > e1000_82543) {
+		/* Read the device control register and assert the E1000_CTRL_PHY_RST
+		 * bit. Then, take it out of reset.
+		 */
+		ctrl = E1000_READ_REG(hw, CTRL);
+		E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PHY_RST);
+		E1000_WRITE_FLUSH(hw);
+		mdelay(10);
+		E1000_WRITE_REG(hw, CTRL, ctrl);
+		E1000_WRITE_FLUSH(hw);
+	} else {
+		/* Read the Extended Device Control Register, assert the PHY_RESET_DIR
+		 * bit to put the PHY into reset. Then, take it out of reset.
+		 */
+		ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
+		ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR;
+		ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA;
+		E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
+		E1000_WRITE_FLUSH(hw);
+		mdelay(10);
+		ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA;
+		E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
+		E1000_WRITE_FLUSH(hw);
+	}
+	udelay(150);
+}
+
+/******************************************************************************
+* Resets the PHY
+*
+* hw - Struct containing variables accessed by shared code
+*
+* Sets bit 15 of the MII Control regiser
+******************************************************************************/
+static int
+e1000_phy_reset(struct e1000_hw *hw)
+{
+	uint16_t phy_data;
+
+	DEBUGFUNC();
+
+	if (e1000_read_phy_reg(hw, PHY_CTRL, &phy_data) < 0) {
+		DEBUGOUT("PHY Read Error\n");
+		return -E1000_ERR_PHY;
+	}
+	phy_data |= MII_CR_RESET;
+	if (e1000_write_phy_reg(hw, PHY_CTRL, phy_data) < 0) {
+		DEBUGOUT("PHY Write Error\n");
+		return -E1000_ERR_PHY;
+	}
+	udelay(1);
+	return 0;
+}
+
+/******************************************************************************
+* Probes the expected PHY address for known PHY IDs
+*
+* hw - Struct containing variables accessed by shared code
+******************************************************************************/
+static int
+e1000_detect_gig_phy(struct e1000_hw *hw)
+{
+	uint16_t phy_id_high, phy_id_low;
+	int match = FALSE;
+
+	DEBUGFUNC();
+
+	/* Read the PHY ID Registers to identify which PHY is onboard. */
+	if (e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high) < 0) {
+		DEBUGOUT("PHY Read Error\n");
+		return -E1000_ERR_PHY;
+	}
+	hw->phy_id = (uint32_t) (phy_id_high << 16);
+	udelay(2);
+	if (e1000_read_phy_reg(hw, PHY_ID2, &phy_id_low) < 0) {
+		DEBUGOUT("PHY Read Error\n");
+		return -E1000_ERR_PHY;
+	}
+	hw->phy_id |= (uint32_t) (phy_id_low & PHY_REVISION_MASK);
+
+	switch (hw->mac_type) {
+	case e1000_82543:
+		if (hw->phy_id == M88E1000_E_PHY_ID)
+			match = TRUE;
+		break;
+	case e1000_82544:
+		if (hw->phy_id == M88E1000_I_PHY_ID)
+			match = TRUE;
+		break;
+	case e1000_82540:
+	case e1000_82545:
+	case e1000_82546:
+		if (hw->phy_id == M88E1011_I_PHY_ID)
+			match = TRUE;
+		break;
+	default:
+		DEBUGOUT("Invalid MAC type %d\n", hw->mac_type);
+		return -E1000_ERR_CONFIG;
+	}
+	if (match) {
+		DEBUGOUT("PHY ID 0x%X detected\n", hw->phy_id);
+		return 0;
+	}
+	DEBUGOUT("Invalid PHY ID 0x%X\n", hw->phy_id);
+	return -E1000_ERR_PHY;
+}
+
+/**
+ * e1000_sw_init - Initialize general software structures (struct e1000_adapter)
+ *
+ * e1000_sw_init initializes the Adapter private data structure.
+ * Fields are initialized based on PCI device information and
+ * OS network device settings (MTU size).
+ **/
+
+static int
+e1000_sw_init(struct eth_device *nic, int cardnum)
+{
+	struct e1000_hw *hw = (typeof(hw)) nic->priv;
+	int result;
+
+	/* PCI config space info */
+	pci_read_config_word(hw->pdev, PCI_VENDOR_ID, &hw->vendor_id);
+	pci_read_config_word(hw->pdev, PCI_DEVICE_ID, &hw->device_id);
+	pci_read_config_word(hw->pdev, PCI_SUBSYSTEM_VENDOR_ID,
+			     &hw->subsystem_vendor_id);
+	pci_read_config_word(hw->pdev, PCI_SUBSYSTEM_ID, &hw->subsystem_id);
+
+	pci_read_config_byte(hw->pdev, PCI_REVISION_ID, &hw->revision_id);
+	pci_read_config_word(hw->pdev, PCI_COMMAND, &hw->pci_cmd_word);
+
+	/* identify the MAC */
+	result = e1000_set_mac_type(hw);
+	if (result) {
+		E1000_ERR("Unknown MAC Type\n");
+		return result;
+	}
+
+	/* lan a vs. lan b settings */
+	if (hw->mac_type == e1000_82546)
+		/*this also works w/ multiple 82546 cards */
+		/*but not if they're intermingled /w other e1000s */
+		hw->lan_loc = (cardnum % 2) ? e1000_lan_b : e1000_lan_a;
+	else
+		hw->lan_loc = e1000_lan_a;
+
+	/* flow control settings */
+	hw->fc_high_water = E1000_FC_HIGH_THRESH;
+	hw->fc_low_water = E1000_FC_LOW_THRESH;
+	hw->fc_pause_time = E1000_FC_PAUSE_TIME;
+	hw->fc_send_xon = 1;
+
+	/* Media type - copper or fiber */
+
+	if (hw->mac_type >= e1000_82543) {
+		uint32_t status = E1000_READ_REG(hw, STATUS);
+
+		if (status & E1000_STATUS_TBIMODE) {
+			DEBUGOUT("fiber interface\n");
+			hw->media_type = e1000_media_type_fiber;
+		} else {
+			DEBUGOUT("copper interface\n");
+			hw->media_type = e1000_media_type_copper;
+		}
+	} else {
+		hw->media_type = e1000_media_type_fiber;
+	}
+
+	if (hw->mac_type < e1000_82543)
+		hw->report_tx_early = 0;
+	else
+		hw->report_tx_early = 1;
+
+	hw->tbi_compatibility_en = TRUE;
+#if 0
+	hw->wait_autoneg_complete = FALSE;
+	hw->adaptive_ifs = TRUE;
+
+	/* Copper options */
+	if (hw->media_type == e1000_media_type_copper) {
+		hw->mdix = AUTO_ALL_MODES;
+		hw->disable_polarity_correction = FALSE;
+	}
+#endif
+	return E1000_SUCCESS;
+}
+
+void
+fill_rx(struct e1000_hw *hw)
+{
+	struct e1000_rx_desc *rd;
+
+	rx_last = rx_tail;
+	rd = rx_base + rx_tail;
+	rx_tail = (rx_tail + 1) % 8;
+	memset(rd, 0, 16);
+	rd->buffer_addr = cpu_to_le64((u32) & packet);
+	E1000_WRITE_REG(hw, RDT, rx_tail);
+}
+
+/**
+ * e1000_configure_tx - Configure 8254x Transmit Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Tx unit of the MAC after a reset.
+ **/
+
+static void
+e1000_configure_tx(struct e1000_hw *hw)
+{
+	unsigned long ptr;
+	unsigned long tctl;
+	unsigned long tipg;
+
+	ptr = (u32) tx_pool;
+	if (ptr & 0xf)
+		ptr = (ptr + 0x10) & (~0xf);
+
+	tx_base = (typeof(tx_base)) ptr;
+
+	E1000_WRITE_REG(hw, TDBAL, (u32) tx_base);
+	E1000_WRITE_REG(hw, TDBAH, 0);
+
+	E1000_WRITE_REG(hw, TDLEN, 128);
+
+	/* Setup the HW Tx Head and Tail descriptor pointers */
+	E1000_WRITE_REG(hw, TDH, 0);
+	E1000_WRITE_REG(hw, TDT, 0);
+	tx_tail = 0;
+
+	/* Set the default values for the Tx Inter Packet Gap timer */
+	switch (hw->mac_type) {
+	case e1000_82542_rev2_0:
+	case e1000_82542_rev2_1:
+		tipg = DEFAULT_82542_TIPG_IPGT;
+		tipg |= DEFAULT_82542_TIPG_IPGR1 << E1000_TIPG_IPGR1_SHIFT;
+		tipg |= DEFAULT_82542_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
+		break;
+	default:
+		if (hw->media_type == e1000_media_type_fiber)
+			tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
+		else
+			tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
+		tipg |= DEFAULT_82543_TIPG_IPGR1 << E1000_TIPG_IPGR1_SHIFT;
+		tipg |= DEFAULT_82543_TIPG_IPGR2 << E1000_TIPG_IPGR2_SHIFT;
+	}
+	E1000_WRITE_REG(hw, TIPG, tipg);
+#if 0
+	/* Set the Tx Interrupt Delay register */
+	E1000_WRITE_REG(hw, TIDV, adapter->tx_int_delay);
+	if (hw->mac_type >= e1000_82540)
+		E1000_WRITE_REG(hw, TADV, adapter->tx_abs_int_delay);
+#endif
+	/* Program the Transmit Control Register */
+	tctl = E1000_READ_REG(hw, TCTL);
+	tctl &= ~E1000_TCTL_CT;
+	tctl |= E1000_TCTL_EN | E1000_TCTL_PSP |
+	    (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
+	E1000_WRITE_REG(hw, TCTL, tctl);
+
+	e1000_config_collision_dist(hw);
+#if 0
+	/* Setup Transmit Descriptor Settings for this adapter */
+	adapter->txd_cmd = E1000_TXD_CMD_IFCS | E1000_TXD_CMD_IDE;
+
+	if (adapter->hw.report_tx_early == 1)
+		adapter->txd_cmd |= E1000_TXD_CMD_RS;
+	else
+		adapter->txd_cmd |= E1000_TXD_CMD_RPS;
+#endif
+}
+
+/**
+ * e1000_setup_rctl - configure the receive control register
+ * @adapter: Board private structure
+ **/
+static void
+e1000_setup_rctl(struct e1000_hw *hw)
+{
+	uint32_t rctl;
+
+	rctl = E1000_READ_REG(hw, RCTL);
+
+	rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
+
+	rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF;	/* |
+												   (hw.mc_filter_type << E1000_RCTL_MO_SHIFT); */
+
+	if (hw->tbi_compatibility_on == 1)
+		rctl |= E1000_RCTL_SBP;
+	else
+		rctl &= ~E1000_RCTL_SBP;
+
+	rctl &= ~(E1000_RCTL_SZ_4096);
+#if 0
+	switch (adapter->rx_buffer_len) {
+	case E1000_RXBUFFER_2048:
+	default:
+#endif
+		rctl |= E1000_RCTL_SZ_2048;
+		rctl &= ~(E1000_RCTL_BSEX | E1000_RCTL_LPE);
+#if 0
+		break;
+	case E1000_RXBUFFER_4096:
+		rctl |= E1000_RCTL_SZ_4096 | E1000_RCTL_BSEX | E1000_RCTL_LPE;
+		break;
+	case E1000_RXBUFFER_8192:
+		rctl |= E1000_RCTL_SZ_8192 | E1000_RCTL_BSEX | E1000_RCTL_LPE;
+		break;
+	case E1000_RXBUFFER_16384:
+		rctl |= E1000_RCTL_SZ_16384 | E1000_RCTL_BSEX | E1000_RCTL_LPE;
+		break;
+	}
+#endif
+	E1000_WRITE_REG(hw, RCTL, rctl);
+}
+
+/**
+ * e1000_configure_rx - Configure 8254x Receive Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Rx unit of the MAC after a reset.
+ **/
+static void
+e1000_configure_rx(struct e1000_hw *hw)
+{
+	unsigned long ptr;
+	unsigned long rctl;
+#if 0
+	unsigned long rxcsum;
+#endif
+	rx_tail = 0;
+	/* make sure receives are disabled while setting up the descriptors */
+	rctl = E1000_READ_REG(hw, RCTL);
+	E1000_WRITE_REG(hw, RCTL, rctl & ~E1000_RCTL_EN);
+#if 0
+	/* set the Receive Delay Timer Register */
+
+	E1000_WRITE_REG(hw, RDTR, adapter->rx_int_delay);
+#endif
+	if (hw->mac_type >= e1000_82540) {
+#if 0
+		E1000_WRITE_REG(hw, RADV, adapter->rx_abs_int_delay);
+#endif
+		/* Set the interrupt throttling rate.  Value is calculated
+		 * as DEFAULT_ITR = 1/(MAX_INTS_PER_SEC * 256ns) */
+#define MAX_INTS_PER_SEC        8000
+#define DEFAULT_ITR             1000000000/(MAX_INTS_PER_SEC * 256)
+		E1000_WRITE_REG(hw, ITR, DEFAULT_ITR);
+	}
+
+	/* Setup the Base and Length of the Rx Descriptor Ring */
+	ptr = (u32) rx_pool;
+	if (ptr & 0xf)
+		ptr = (ptr + 0x10) & (~0xf);
+	rx_base = (typeof(rx_base)) ptr;
+	E1000_WRITE_REG(hw, RDBAL, (u32) rx_base);
+	E1000_WRITE_REG(hw, RDBAH, 0);
+
+	E1000_WRITE_REG(hw, RDLEN, 128);
+
+	/* Setup the HW Rx Head and Tail Descriptor Pointers */
+	E1000_WRITE_REG(hw, RDH, 0);
+	E1000_WRITE_REG(hw, RDT, 0);
+#if 0
+	/* Enable 82543 Receive Checksum Offload for TCP and UDP */
+	if ((adapter->hw.mac_type >= e1000_82543) && (adapter->rx_csum == TRUE)) {
+		rxcsum = E1000_READ_REG(hw, RXCSUM);
+		rxcsum |= E1000_RXCSUM_TUOFL;
+		E1000_WRITE_REG(hw, RXCSUM, rxcsum);
+	}
+#endif
+	/* Enable Receives */
+
+	E1000_WRITE_REG(hw, RCTL, rctl);
+	fill_rx(hw);
+}
+
+/**************************************************************************
+POLL - Wait for a frame
+***************************************************************************/
+static int
+e1000_poll(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+	struct e1000_rx_desc *rd;
+	/* return true if there's an ethernet packet ready to read */
+	rd = rx_base + rx_last;
+	if (!(le32_to_cpu(rd->status)) & E1000_RXD_STAT_DD)
+		return 0;
+	/*DEBUGOUT("recv: packet len=%d \n", rd->length); */
+	NetReceive(packet, le32_to_cpu(rd->length));
+	fill_rx(hw);
+	return 1;
+}
+
+/**************************************************************************
+TRANSMIT - Transmit a frame
+***************************************************************************/
+static int
+e1000_transmit(struct eth_device *nic, volatile void *packet, int length)
+{
+	struct e1000_hw *hw = nic->priv;
+	struct e1000_tx_desc *txp;
+	int i = 0;
+
+	txp = tx_base + tx_tail;
+	tx_tail = (tx_tail + 1) % 8;
+
+	txp->buffer_addr = cpu_to_le64(virt_to_bus(packet));
+	txp->lower.data = cpu_to_le32(E1000_TXD_CMD_RPS | E1000_TXD_CMD_EOP |
+				      E1000_TXD_CMD_IFCS | length);
+	txp->upper.data = 0;
+	E1000_WRITE_REG(hw, TDT, tx_tail);
+
+	while (!(le32_to_cpu(txp->upper.data) & E1000_TXD_STAT_DD)) {
+		if (i++ > TOUT_LOOP) {
+			DEBUGOUT("e1000: tx timeout\n");
+			return 0;
+		}
+		udelay(10);	/* give the nic a chance to write to the register */
+	}
+	return 1;
+}
+
+/*reset function*/
+static inline int
+e1000_reset(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+
+	e1000_reset_hw(hw);
+	if (hw->mac_type >= e1000_82544) {
+		E1000_WRITE_REG(hw, WUC, 0);
+	}
+	return e1000_init_hw(nic);
+}
+
+/**************************************************************************
+DISABLE - Turn off ethernet interface
+***************************************************************************/
+static void
+e1000_disable(struct eth_device *nic)
+{
+	struct e1000_hw *hw = nic->priv;
+
+	/* Turn off the ethernet interface */
+	E1000_WRITE_REG(hw, RCTL, 0);
+	E1000_WRITE_REG(hw, TCTL, 0);
+
+	/* Clear the transmit ring */
+	E1000_WRITE_REG(hw, TDH, 0);
+	E1000_WRITE_REG(hw, TDT, 0);
+
+	/* Clear the receive ring */
+	E1000_WRITE_REG(hw, RDH, 0);
+	E1000_WRITE_REG(hw, RDT, 0);
+
+	/* put the card in its initial state */
+#if 0
+	E1000_WRITE_REG(hw, CTRL, E1000_CTRL_RST);
+#endif
+	mdelay(10);
+
+}
+
+/**************************************************************************
+INIT - set up ethernet interface(s)
+***************************************************************************/
+static int
+e1000_init(struct eth_device *nic, bd_t * bis)
+{
+	struct e1000_hw *hw = nic->priv;
+	int ret_val = 0;
+
+	ret_val = e1000_reset(nic);
+	if (ret_val < 0) {
+		if ((ret_val == -E1000_ERR_NOLINK) ||
+		    (ret_val == -E1000_ERR_TIMEOUT)) {
+			E1000_ERR("Valid Link not detected\n");
+		} else {
+			E1000_ERR("Hardware Initialization Failed\n");
+		}
+		return 0;
+	}
+	e1000_configure_tx(hw);
+	e1000_setup_rctl(hw);
+	e1000_configure_rx(hw);
+	return 1;
+}
+
+/**************************************************************************
+PROBE - Look for an adapter, this routine's visible to the outside
+You should omit the last argument struct pci_device * for a non-PCI NIC
+***************************************************************************/
+int
+e1000_initialize(bd_t * bis)
+{
+	pci_dev_t devno;
+	int card_number = 0;
+	struct eth_device *nic = NULL;
+	struct e1000_hw *hw = NULL;
+	u32 iobase;
+	int idx = 0;
+	u32 PciCommandWord;
+
+	while (1) {		/* Find PCI device(s) */
+		if ((devno = pci_find_devices(supported, idx++)) < 0) {
+			break;
+		}
+
+		pci_read_config_dword(devno, PCI_BASE_ADDRESS_0, &iobase);
+		iobase &= ~0xf;	/* Mask the bits that say "this is an io addr" */
+		DEBUGOUT("e1000#%d: iobase 0x%08x\n", card_number, iobase);
+
+		pci_write_config_dword(devno, PCI_COMMAND,
+				       PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+		/* Check if I/O accesses and Bus Mastering are enabled. */
+		pci_read_config_dword(devno, PCI_COMMAND, &PciCommandWord);
+		if (!(PciCommandWord & PCI_COMMAND_MEMORY)) {
+			printf("Error: Can not enable MEM access.\n");
+			continue;
+		} else if (!(PciCommandWord & PCI_COMMAND_MASTER)) {
+			printf("Error: Can not enable Bus Mastering.\n");
+			continue;
+		}
+
+		nic = (struct eth_device *) malloc(sizeof (*nic));
+		hw = (struct e1000_hw *) malloc(sizeof (*hw));
+		hw->pdev = devno;
+		nic->priv = hw;
+		nic->iobase = bus_to_phys(devno, iobase);
+
+		sprintf(nic->name, "e1000#%d", card_number);
+
+		/* Are these variables needed? */
+#if 0
+		hw->fc = e1000_fc_none;
+		hw->original_fc = e1000_fc_none;
+#else
+		hw->fc = e1000_fc_default;
+		hw->original_fc = e1000_fc_default;
+#endif
+		hw->autoneg_failed = 0;
+		hw->get_link_status = TRUE;
+		hw->hw_addr = (typeof(hw->hw_addr)) iobase;
+		hw->mac_type = e1000_undefined;
+
+		/* MAC and Phy settings */
+		if (e1000_sw_init(nic, card_number) < 0) {
+			free(hw);
+			free(nic);
+			return 0;
+		}
+		if (e1000_validate_eeprom_checksum(nic) < 0) {
+			printf("The EEPROM Checksum Is Not Valid\n");
+			free(hw);
+			free(nic);
+			return 0;
+		}
+		e1000_read_mac_addr(nic);
+
+		E1000_WRITE_REG(hw, PBA, E1000_DEFAULT_PBA);
+
+		printf("e1000: %02x:%02x:%02x:%02x:%02x:%02x\n",
+		       nic->enetaddr[0], nic->enetaddr[1], nic->enetaddr[2],
+		       nic->enetaddr[3], nic->enetaddr[4], nic->enetaddr[5]);
+
+		nic->init = e1000_init;
+		nic->recv = e1000_poll;
+		nic->send = e1000_transmit;
+		nic->halt = e1000_disable;
+
+		eth_register(nic);
+
+		card_number++;
+	}
+	return 1;
+}
+
+#endif
diff --git a/drivers/e1000.h b/drivers/e1000.h
new file mode 100644
index 00000000000..ba05ac0750d
--- /dev/null
+++ b/drivers/e1000.h
@@ -0,0 +1,1758 @@
+/*******************************************************************************
+
+  
+  Copyright(c) 1999 - 2002 Intel Corporation. All rights reserved.
+  
+  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., 59 
+  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+  
+  The full GNU General Public License is included in this distribution in the
+  file called LICENSE.
+  
+  Contact Information:
+  Linux NICS <linux.nics@intel.com>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+/* e1000_hw.h
+ * Structures, enums, and macros for the MAC
+ */
+
+#ifndef _E1000_HW_H_
+#define _E1000_HW_H_
+
+#include <common.h>
+#include <malloc.h>
+#include <net.h>
+#include <asm/io.h>
+#include <pci.h>
+
+#define E1000_ERR(args...) printf("e1000: " args)
+
+#ifdef E1000_DEBUG
+#define E1000_DBG(args...)	printf("e1000: " args)
+#define DEBUGOUT(fmt,args...) printf(fmt ,##args)
+#define DEBUGFUNC()        printf("%s\n", __FUNCTION__);
+#else
+#define E1000_DBG(args...)
+#define DEBUGFUNC()
+#define DEBUGOUT(fmt,args...)
+#endif
+
+/* Forward declarations of structures used by the shared code */
+struct e1000_hw;
+struct e1000_hw_stats;
+
+typedef enum {
+	FALSE = 0,
+	TRUE = 1
+} boolean_t;
+
+/* Enumerated types specific to the e1000 hardware */
+/* Media Access Controlers */
+typedef enum {
+	e1000_undefined = 0,
+	e1000_82542_rev2_0,
+	e1000_82542_rev2_1,
+	e1000_82543,
+	e1000_82544,
+	e1000_82540,
+	e1000_82545,
+	e1000_82546,
+	e1000_num_macs
+} e1000_mac_type;
+
+/* Media Types */
+typedef enum {
+	e1000_media_type_copper = 0,
+	e1000_media_type_fiber = 1,
+	e1000_num_media_types
+} e1000_media_type;
+
+typedef enum {
+	e1000_10_half = 0,
+	e1000_10_full = 1,
+	e1000_100_half = 2,
+	e1000_100_full = 3
+} e1000_speed_duplex_type;
+
+typedef enum {
+	e1000_lan_a = 0,
+	e1000_lan_b = 1
+} e1000_lan_loc;
+
+/* Flow Control Settings */
+typedef enum {
+	e1000_fc_none = 0,
+	e1000_fc_rx_pause = 1,
+	e1000_fc_tx_pause = 2,
+	e1000_fc_full = 3,
+	e1000_fc_default = 0xFF
+} e1000_fc_type;
+
+/* PCI bus types */
+typedef enum {
+	e1000_bus_type_unknown = 0,
+	e1000_bus_type_pci,
+	e1000_bus_type_pcix
+} e1000_bus_type;
+
+/* PCI bus speeds */
+typedef enum {
+	e1000_bus_speed_unknown = 0,
+	e1000_bus_speed_33,
+	e1000_bus_speed_66,
+	e1000_bus_speed_100,
+	e1000_bus_speed_133,
+	e1000_bus_speed_reserved
+} e1000_bus_speed;
+
+/* PCI bus widths */
+typedef enum {
+	e1000_bus_width_unknown = 0,
+	e1000_bus_width_32,
+	e1000_bus_width_64
+} e1000_bus_width;
+
+/* PHY status info structure and supporting enums */
+typedef enum {
+	e1000_cable_length_50 = 0,
+	e1000_cable_length_50_80,
+	e1000_cable_length_80_110,
+	e1000_cable_length_110_140,
+	e1000_cable_length_140,
+	e1000_cable_length_undefined = 0xFF
+} e1000_cable_length;
+
+typedef enum {
+	e1000_10bt_ext_dist_enable_normal = 0,
+	e1000_10bt_ext_dist_enable_lower,
+	e1000_10bt_ext_dist_enable_undefined = 0xFF
+} e1000_10bt_ext_dist_enable;
+
+typedef enum {
+	e1000_rev_polarity_normal = 0,
+	e1000_rev_polarity_reversed,
+	e1000_rev_polarity_undefined = 0xFF
+} e1000_rev_polarity;
+
+typedef enum {
+	e1000_polarity_reversal_enabled = 0,
+	e1000_polarity_reversal_disabled,
+	e1000_polarity_reversal_undefined = 0xFF
+} e1000_polarity_reversal;
+
+typedef enum {
+	e1000_auto_x_mode_manual_mdi = 0,
+	e1000_auto_x_mode_manual_mdix,
+	e1000_auto_x_mode_auto1,
+	e1000_auto_x_mode_auto2,
+	e1000_auto_x_mode_undefined = 0xFF
+} e1000_auto_x_mode;
+
+typedef enum {
+	e1000_1000t_rx_status_not_ok = 0,
+	e1000_1000t_rx_status_ok,
+	e1000_1000t_rx_status_undefined = 0xFF
+} e1000_1000t_rx_status;
+
+struct e1000_phy_info {
+	e1000_cable_length cable_length;
+	e1000_10bt_ext_dist_enable extended_10bt_distance;
+	e1000_rev_polarity cable_polarity;
+	e1000_polarity_reversal polarity_correction;
+	e1000_auto_x_mode mdix_mode;
+	e1000_1000t_rx_status local_rx;
+	e1000_1000t_rx_status remote_rx;
+};
+
+struct e1000_phy_stats {
+	uint32_t idle_errors;
+	uint32_t receive_errors;
+};
+
+/* Error Codes */
+#define E1000_SUCCESS      0
+#define E1000_ERR_EEPROM   1
+#define E1000_ERR_PHY      2
+#define E1000_ERR_CONFIG   3
+#define E1000_ERR_PARAM    4
+#define E1000_ERR_MAC_TYPE 5
+#define E1000_ERR_NOLINK   6
+#define E1000_ERR_TIMEOUT  7
+
+/* PCI Device IDs */
+#define E1000_DEV_ID_82542          0x1000
+#define E1000_DEV_ID_82543GC_FIBER  0x1001
+#define E1000_DEV_ID_82543GC_COPPER 0x1004
+#define E1000_DEV_ID_82544EI_COPPER 0x1008
+#define E1000_DEV_ID_82544EI_FIBER  0x1009
+#define E1000_DEV_ID_82544GC_COPPER 0x100C
+#define E1000_DEV_ID_82544GC_LOM    0x100D
+#define E1000_DEV_ID_82540EM        0x100E
+#define E1000_DEV_ID_82540EM_LOM    0x1015
+#define E1000_DEV_ID_82545EM_COPPER 0x100F
+#define E1000_DEV_ID_82545EM_FIBER  0x1011
+#define E1000_DEV_ID_82546EB_COPPER 0x1010
+#define E1000_DEV_ID_82546EB_FIBER  0x1012
+#define NUM_DEV_IDS 13
+
+#define NODE_ADDRESS_SIZE 6
+#define ETH_LENGTH_OF_ADDRESS 6
+
+/* MAC decode size is 128K - This is the size of BAR0 */
+#define MAC_DECODE_SIZE (128 * 1024)
+
+#define E1000_82542_2_0_REV_ID 2
+#define E1000_82542_2_1_REV_ID 3
+
+#define SPEED_10    10
+#define SPEED_100   100
+#define SPEED_1000  1000
+#define HALF_DUPLEX 1
+#define FULL_DUPLEX 2
+
+/* The sizes (in bytes) of a ethernet packet */
+#define ENET_HEADER_SIZE             14
+#define MAXIMUM_ETHERNET_FRAME_SIZE  1518	/* With FCS */
+#define MINIMUM_ETHERNET_FRAME_SIZE  64	/* With FCS */
+#define ETHERNET_FCS_SIZE            4
+#define MAXIMUM_ETHERNET_PACKET_SIZE \
+    (MAXIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE)
+#define MINIMUM_ETHERNET_PACKET_SIZE \
+    (MINIMUM_ETHERNET_FRAME_SIZE - ETHERNET_FCS_SIZE)
+#define CRC_LENGTH                   ETHERNET_FCS_SIZE
+#define MAX_JUMBO_FRAME_SIZE         0x3F00
+
+/* 802.1q VLAN Packet Sizes */
+#define VLAN_TAG_SIZE                     4	/* 802.3ac tag (not DMAed) */
+
+/* Ethertype field values */
+#define ETHERNET_IEEE_VLAN_TYPE 0x8100	/* 802.3ac packet */
+#define ETHERNET_IP_TYPE        0x0800	/* IP packets */
+#define ETHERNET_ARP_TYPE       0x0806	/* Address Resolution Protocol (ARP) */
+
+/* Packet Header defines */
+#define IP_PROTOCOL_TCP    6
+#define IP_PROTOCOL_UDP    0x11
+
+/* This defines the bits that are set in the Interrupt Mask
+ * Set/Read Register.  Each bit is documented below:
+ *   o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
+ *   o RXSEQ  = Receive Sequence Error 
+ */
+#define POLL_IMS_ENABLE_MASK ( \
+    E1000_IMS_RXDMT0 |         \
+    E1000_IMS_RXSEQ)
+
+/* This defines the bits that are set in the Interrupt Mask
+ * Set/Read Register.  Each bit is documented below:
+ *   o RXT0   = Receiver Timer Interrupt (ring 0)
+ *   o TXDW   = Transmit Descriptor Written Back
+ *   o RXDMT0 = Receive Descriptor Minimum Threshold hit (ring 0)
+ *   o RXSEQ  = Receive Sequence Error
+ *   o LSC    = Link Status Change
+ */
+#define IMS_ENABLE_MASK ( \
+    E1000_IMS_RXT0   |    \
+    E1000_IMS_TXDW   |    \
+    E1000_IMS_RXDMT0 |    \
+    E1000_IMS_RXSEQ  |    \
+    E1000_IMS_LSC)
+
+/* The number of high/low register pairs in the RAR. The RAR (Receive Address
+ * Registers) holds the directed and multicast addresses that we monitor. We
+ * reserve one of these spots for our directed address, allowing us room for
+ * E1000_RAR_ENTRIES - 1 multicast addresses. 
+ */
+#define E1000_RAR_ENTRIES 16
+
+#define MIN_NUMBER_OF_DESCRIPTORS 8
+#define MAX_NUMBER_OF_DESCRIPTORS 0xFFF8
+
+/* Receive Descriptor */
+struct e1000_rx_desc {
+	uint64_t buffer_addr;	/* Address of the descriptor's data buffer */
+	uint16_t length;	/* Length of data DMAed into data buffer */
+	uint16_t csum;		/* Packet checksum */
+	uint8_t status;		/* Descriptor status */
+	uint8_t errors;		/* Descriptor Errors */
+	uint16_t special;
+};
+
+/* Receive Decriptor bit definitions */
+#define E1000_RXD_STAT_DD       0x01	/* Descriptor Done */
+#define E1000_RXD_STAT_EOP      0x02	/* End of Packet */
+#define E1000_RXD_STAT_IXSM     0x04	/* Ignore checksum */
+#define E1000_RXD_STAT_VP       0x08	/* IEEE VLAN Packet */
+#define E1000_RXD_STAT_TCPCS    0x20	/* TCP xsum calculated */
+#define E1000_RXD_STAT_IPCS     0x40	/* IP xsum calculated */
+#define E1000_RXD_STAT_PIF      0x80	/* passed in-exact filter */
+#define E1000_RXD_ERR_CE        0x01	/* CRC Error */
+#define E1000_RXD_ERR_SE        0x02	/* Symbol Error */
+#define E1000_RXD_ERR_SEQ       0x04	/* Sequence Error */
+#define E1000_RXD_ERR_CXE       0x10	/* Carrier Extension Error */
+#define E1000_RXD_ERR_TCPE      0x20	/* TCP/UDP Checksum Error */
+#define E1000_RXD_ERR_IPE       0x40	/* IP Checksum Error */
+#define E1000_RXD_ERR_RXE       0x80	/* Rx Data Error */
+#define E1000_RXD_SPC_VLAN_MASK 0x0FFF	/* VLAN ID is in lower 12 bits */
+#define E1000_RXD_SPC_PRI_MASK  0xE000	/* Priority is in upper 3 bits */
+#define E1000_RXD_SPC_PRI_SHIFT 0x000D	/* Priority is in upper 3 of 16 */
+#define E1000_RXD_SPC_CFI_MASK  0x1000	/* CFI is bit 12 */
+#define E1000_RXD_SPC_CFI_SHIFT 0x000C	/* CFI is bit 12 */
+
+/* mask to determine if packets should be dropped due to frame errors */
+#define E1000_RXD_ERR_FRAME_ERR_MASK ( \
+    E1000_RXD_ERR_CE  |                \
+    E1000_RXD_ERR_SE  |                \
+    E1000_RXD_ERR_SEQ |                \
+    E1000_RXD_ERR_CXE |                \
+    E1000_RXD_ERR_RXE)
+
+/* Transmit Descriptor */
+struct e1000_tx_desc {
+	uint64_t buffer_addr;	/* Address of the descriptor's data buffer */
+	union {
+		uint32_t data;
+		struct {
+			uint16_t length;	/* Data buffer length */
+			uint8_t cso;	/* Checksum offset */
+			uint8_t cmd;	/* Descriptor control */
+		} flags;
+	} lower;
+	union {
+		uint32_t data;
+		struct {
+			uint8_t status;	/* Descriptor status */
+			uint8_t css;	/* Checksum start */
+			uint16_t special;
+		} fields;
+	} upper;
+};
+
+/* Transmit Descriptor bit definitions */
+#define E1000_TXD_DTYP_D     0x00100000	/* Data Descriptor */
+#define E1000_TXD_DTYP_C     0x00000000	/* Context Descriptor */
+#define E1000_TXD_POPTS_IXSM 0x01	/* Insert IP checksum */
+#define E1000_TXD_POPTS_TXSM 0x02	/* Insert TCP/UDP checksum */
+#define E1000_TXD_CMD_EOP    0x01000000	/* End of Packet */
+#define E1000_TXD_CMD_IFCS   0x02000000	/* Insert FCS (Ethernet CRC) */
+#define E1000_TXD_CMD_IC     0x04000000	/* Insert Checksum */
+#define E1000_TXD_CMD_RS     0x08000000	/* Report Status */
+#define E1000_TXD_CMD_RPS    0x10000000	/* Report Packet Sent */
+#define E1000_TXD_CMD_DEXT   0x20000000	/* Descriptor extension (0 = legacy) */
+#define E1000_TXD_CMD_VLE    0x40000000	/* Add VLAN tag */
+#define E1000_TXD_CMD_IDE    0x80000000	/* Enable Tidv register */
+#define E1000_TXD_STAT_DD    0x00000001	/* Descriptor Done */
+#define E1000_TXD_STAT_EC    0x00000002	/* Excess Collisions */
+#define E1000_TXD_STAT_LC    0x00000004	/* Late Collisions */
+#define E1000_TXD_STAT_TU    0x00000008	/* Transmit underrun */
+#define E1000_TXD_CMD_TCP    0x01000000	/* TCP packet */
+#define E1000_TXD_CMD_IP     0x02000000	/* IP packet */
+#define E1000_TXD_CMD_TSE    0x04000000	/* TCP Seg enable */
+#define E1000_TXD_STAT_TC    0x00000004	/* Tx Underrun */
+
+/* Offload Context Descriptor */
+struct e1000_context_desc {
+	union {
+		uint32_t ip_config;
+		struct {
+			uint8_t ipcss;	/* IP checksum start */
+			uint8_t ipcso;	/* IP checksum offset */
+			uint16_t ipcse;	/* IP checksum end */
+		} ip_fields;
+	} lower_setup;
+	union {
+		uint32_t tcp_config;
+		struct {
+			uint8_t tucss;	/* TCP checksum start */
+			uint8_t tucso;	/* TCP checksum offset */
+			uint16_t tucse;	/* TCP checksum end */
+		} tcp_fields;
+	} upper_setup;
+	uint32_t cmd_and_length;	/* */
+	union {
+		uint32_t data;
+		struct {
+			uint8_t status;	/* Descriptor status */
+			uint8_t hdr_len;	/* Header length */
+			uint16_t mss;	/* Maximum segment size */
+		} fields;
+	} tcp_seg_setup;
+};
+
+/* Offload data descriptor */
+struct e1000_data_desc {
+	uint64_t buffer_addr;	/* Address of the descriptor's buffer address */
+	union {
+		uint32_t data;
+		struct {
+			uint16_t length;	/* Data buffer length */
+			uint8_t typ_len_ext;	/* */
+			uint8_t cmd;	/* */
+		} flags;
+	} lower;
+	union {
+		uint32_t data;
+		struct {
+			uint8_t status;	/* Descriptor status */
+			uint8_t popts;	/* Packet Options */
+			uint16_t special;	/* */
+		} fields;
+	} upper;
+};
+
+/* Filters */
+#define E1000_NUM_UNICAST          16	/* Unicast filter entries */
+#define E1000_MC_TBL_SIZE          128	/* Multicast Filter Table (4096 bits) */
+#define E1000_VLAN_FILTER_TBL_SIZE 128	/* VLAN Filter Table (4096 bits) */
+
+/* Receive Address Register */
+struct e1000_rar {
+	volatile uint32_t low;	/* receive address low */
+	volatile uint32_t high;	/* receive address high */
+};
+
+/* The number of entries in the Multicast Table Array (MTA). */
+#define E1000_NUM_MTA_REGISTERS 128
+
+/* IPv4 Address Table Entry */
+struct e1000_ipv4_at_entry {
+	volatile uint32_t ipv4_addr;	/* IP Address (RW) */
+	volatile uint32_t reserved;
+};
+
+/* Four wakeup IP addresses are supported */
+#define E1000_WAKEUP_IP_ADDRESS_COUNT_MAX 4
+#define E1000_IP4AT_SIZE                  E1000_WAKEUP_IP_ADDRESS_COUNT_MAX
+#define E1000_IP6AT_SIZE                  1
+
+/* IPv6 Address Table Entry */
+struct e1000_ipv6_at_entry {
+	volatile uint8_t ipv6_addr[16];
+};
+
+/* Flexible Filter Length Table Entry */
+struct e1000_fflt_entry {
+	volatile uint32_t length;	/* Flexible Filter Length (RW) */
+	volatile uint32_t reserved;
+};
+
+/* Flexible Filter Mask Table Entry */
+struct e1000_ffmt_entry {
+	volatile uint32_t mask;	/* Flexible Filter Mask (RW) */
+	volatile uint32_t reserved;
+};
+
+/* Flexible Filter Value Table Entry */
+struct e1000_ffvt_entry {
+	volatile uint32_t value;	/* Flexible Filter Value (RW) */
+	volatile uint32_t reserved;
+};
+
+/* Four Flexible Filters are supported */
+#define E1000_FLEXIBLE_FILTER_COUNT_MAX 4
+
+/* Each Flexible Filter is at most 128 (0x80) bytes in length */
+#define E1000_FLEXIBLE_FILTER_SIZE_MAX  128
+
+#define E1000_FFLT_SIZE E1000_FLEXIBLE_FILTER_COUNT_MAX
+#define E1000_FFMT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX
+#define E1000_FFVT_SIZE E1000_FLEXIBLE_FILTER_SIZE_MAX
+
+/* Register Set. (82543, 82544)
+ *
+ * Registers are defined to be 32 bits and  should be accessed as 32 bit values.
+ * These registers are physically located on the NIC, but are mapped into the 
+ * host memory address space.
+ *
+ * RW - register is both readable and writable
+ * RO - register is read only
+ * WO - register is write only
+ * R/clr - register is read only and is cleared when read
+ * A - register array
+ */
+#define E1000_CTRL     0x00000	/* Device Control - RW */
+#define E1000_STATUS   0x00008	/* Device Status - RO */
+#define E1000_EECD     0x00010	/* EEPROM/Flash Control - RW */
+#define E1000_EERD     0x00014	/* EEPROM Read - RW */
+#define E1000_CTRL_EXT 0x00018	/* Extended Device Control - RW */
+#define E1000_MDIC     0x00020	/* MDI Control - RW */
+#define E1000_FCAL     0x00028	/* Flow Control Address Low - RW */
+#define E1000_FCAH     0x0002C	/* Flow Control Address High -RW */
+#define E1000_FCT      0x00030	/* Flow Control Type - RW */
+#define E1000_VET      0x00038	/* VLAN Ether Type - RW */
+#define E1000_ICR      0x000C0	/* Interrupt Cause Read - R/clr */
+#define E1000_ITR      0x000C4	/* Interrupt Throttling Rate - RW */
+#define E1000_ICS      0x000C8	/* Interrupt Cause Set - WO */
+#define E1000_IMS      0x000D0	/* Interrupt Mask Set - RW */
+#define E1000_IMC      0x000D8	/* Interrupt Mask Clear - WO */
+#define E1000_RCTL     0x00100	/* RX Control - RW */
+#define E1000_FCTTV    0x00170	/* Flow Control Transmit Timer Value - RW */
+#define E1000_TXCW     0x00178	/* TX Configuration Word - RW */
+#define E1000_RXCW     0x00180	/* RX Configuration Word - RO */
+#define E1000_TCTL     0x00400	/* TX Control - RW */
+#define E1000_TIPG     0x00410	/* TX Inter-packet gap -RW */
+#define E1000_TBT      0x00448	/* TX Burst Timer - RW */
+#define E1000_AIT      0x00458	/* Adaptive Interframe Spacing Throttle - RW */
+#define E1000_LEDCTL   0x00E00	/* LED Control - RW */
+#define E1000_PBA      0x01000	/* Packet Buffer Allocation - RW */
+#define E1000_FCRTL    0x02160	/* Flow Control Receive Threshold Low - RW */
+#define E1000_FCRTH    0x02168	/* Flow Control Receive Threshold High - RW */
+#define E1000_RDBAL    0x02800	/* RX Descriptor Base Address Low - RW */
+#define E1000_RDBAH    0x02804	/* RX Descriptor Base Address High - RW */
+#define E1000_RDLEN    0x02808	/* RX Descriptor Length - RW */
+#define E1000_RDH      0x02810	/* RX Descriptor Head - RW */
+#define E1000_RDT      0x02818	/* RX Descriptor Tail - RW */
+#define E1000_RDTR     0x02820	/* RX Delay Timer - RW */
+#define E1000_RXDCTL   0x02828	/* RX Descriptor Control - RW */
+#define E1000_RADV     0x0282C	/* RX Interrupt Absolute Delay Timer - RW */
+#define E1000_RSRPD    0x02C00	/* RX Small Packet Detect - RW */
+#define E1000_TXDMAC   0x03000	/* TX DMA Control - RW */
+#define E1000_TDBAL    0x03800	/* TX Descriptor Base Address Low - RW */
+#define E1000_TDBAH    0x03804	/* TX Descriptor Base Address High - RW */
+#define E1000_TDLEN    0x03808	/* TX Descriptor Length - RW */
+#define E1000_TDH      0x03810	/* TX Descriptor Head - RW */
+#define E1000_TDT      0x03818	/* TX Descripotr Tail - RW */
+#define E1000_TIDV     0x03820	/* TX Interrupt Delay Value - RW */
+#define E1000_TXDCTL   0x03828	/* TX Descriptor Control - RW */
+#define E1000_TADV     0x0382C	/* TX Interrupt Absolute Delay Val - RW */
+#define E1000_TSPMT    0x03830	/* TCP Segmentation PAD & Min Threshold - RW */
+#define E1000_CRCERRS  0x04000	/* CRC Error Count - R/clr */
+#define E1000_ALGNERRC 0x04004	/* Alignment Error Count - R/clr */
+#define E1000_SYMERRS  0x04008	/* Symbol Error Count - R/clr */
+#define E1000_RXERRC   0x0400C	/* Receive Error Count - R/clr */
+#define E1000_MPC      0x04010	/* Missed Packet Count - R/clr */
+#define E1000_SCC      0x04014	/* Single Collision Count - R/clr */
+#define E1000_ECOL     0x04018	/* Excessive Collision Count - R/clr */
+#define E1000_MCC      0x0401C	/* Multiple Collision Count - R/clr */
+#define E1000_LATECOL  0x04020	/* Late Collision Count - R/clr */
+#define E1000_COLC     0x04028	/* Collision Count - R/clr */
+#define E1000_DC       0x04030	/* Defer Count - R/clr */
+#define E1000_TNCRS    0x04034	/* TX-No CRS - R/clr */
+#define E1000_SEC      0x04038	/* Sequence Error Count - R/clr */
+#define E1000_CEXTERR  0x0403C	/* Carrier Extension Error Count - R/clr */
+#define E1000_RLEC     0x04040	/* Receive Length Error Count - R/clr */
+#define E1000_XONRXC   0x04048	/* XON RX Count - R/clr */
+#define E1000_XONTXC   0x0404C	/* XON TX Count - R/clr */
+#define E1000_XOFFRXC  0x04050	/* XOFF RX Count - R/clr */
+#define E1000_XOFFTXC  0x04054	/* XOFF TX Count - R/clr */
+#define E1000_FCRUC    0x04058	/* Flow Control RX Unsupported Count- R/clr */
+#define E1000_PRC64    0x0405C	/* Packets RX (64 bytes) - R/clr */
+#define E1000_PRC127   0x04060	/* Packets RX (65-127 bytes) - R/clr */
+#define E1000_PRC255   0x04064	/* Packets RX (128-255 bytes) - R/clr */
+#define E1000_PRC511   0x04068	/* Packets RX (255-511 bytes) - R/clr */
+#define E1000_PRC1023  0x0406C	/* Packets RX (512-1023 bytes) - R/clr */
+#define E1000_PRC1522  0x04070	/* Packets RX (1024-1522 bytes) - R/clr */
+#define E1000_GPRC     0x04074	/* Good Packets RX Count - R/clr */
+#define E1000_BPRC     0x04078	/* Broadcast Packets RX Count - R/clr */
+#define E1000_MPRC     0x0407C	/* Multicast Packets RX Count - R/clr */
+#define E1000_GPTC     0x04080	/* Good Packets TX Count - R/clr */
+#define E1000_GORCL    0x04088	/* Good Octets RX Count Low - R/clr */
+#define E1000_GORCH    0x0408C	/* Good Octets RX Count High - R/clr */
+#define E1000_GOTCL    0x04090	/* Good Octets TX Count Low - R/clr */
+#define E1000_GOTCH    0x04094	/* Good Octets TX Count High - R/clr */
+#define E1000_RNBC     0x040A0	/* RX No Buffers Count - R/clr */
+#define E1000_RUC      0x040A4	/* RX Undersize Count - R/clr */
+#define E1000_RFC      0x040A8	/* RX Fragment Count - R/clr */
+#define E1000_ROC      0x040AC	/* RX Oversize Count - R/clr */
+#define E1000_RJC      0x040B0	/* RX Jabber Count - R/clr */
+#define E1000_MGTPRC   0x040B4	/* Management Packets RX Count - R/clr */
+#define E1000_MGTPDC   0x040B8	/* Management Packets Dropped Count - R/clr */
+#define E1000_MGTPTC   0x040BC	/* Management Packets TX Count - R/clr */
+#define E1000_TORL     0x040C0	/* Total Octets RX Low - R/clr */
+#define E1000_TORH     0x040C4	/* Total Octets RX High - R/clr */
+#define E1000_TOTL     0x040C8	/* Total Octets TX Low - R/clr */
+#define E1000_TOTH     0x040CC	/* Total Octets TX High - R/clr */
+#define E1000_TPR      0x040D0	/* Total Packets RX - R/clr */
+#define E1000_TPT      0x040D4	/* Total Packets TX - R/clr */
+#define E1000_PTC64    0x040D8	/* Packets TX (64 bytes) - R/clr */
+#define E1000_PTC127   0x040DC	/* Packets TX (65-127 bytes) - R/clr */
+#define E1000_PTC255   0x040E0	/* Packets TX (128-255 bytes) - R/clr */
+#define E1000_PTC511   0x040E4	/* Packets TX (256-511 bytes) - R/clr */
+#define E1000_PTC1023  0x040E8	/* Packets TX (512-1023 bytes) - R/clr */
+#define E1000_PTC1522  0x040EC	/* Packets TX (1024-1522 Bytes) - R/clr */
+#define E1000_MPTC     0x040F0	/* Multicast Packets TX Count - R/clr */
+#define E1000_BPTC     0x040F4	/* Broadcast Packets TX Count - R/clr */
+#define E1000_TSCTC    0x040F8	/* TCP Segmentation Context TX - R/clr */
+#define E1000_TSCTFC   0x040FC	/* TCP Segmentation Context TX Fail - R/clr */
+#define E1000_RXCSUM   0x05000	/* RX Checksum Control - RW */
+#define E1000_MTA      0x05200	/* Multicast Table Array - RW Array */
+#define E1000_RA       0x05400	/* Receive Address - RW Array */
+#define E1000_VFTA     0x05600	/* VLAN Filter Table Array - RW Array */
+#define E1000_WUC      0x05800	/* Wakeup Control - RW */
+#define E1000_WUFC     0x05808	/* Wakeup Filter Control - RW */
+#define E1000_WUS      0x05810	/* Wakeup Status - RO */
+#define E1000_MANC     0x05820	/* Management Control - RW */
+#define E1000_IPAV     0x05838	/* IP Address Valid - RW */
+#define E1000_IP4AT    0x05840	/* IPv4 Address Table - RW Array */
+#define E1000_IP6AT    0x05880	/* IPv6 Address Table - RW Array */
+#define E1000_WUPL     0x05900	/* Wakeup Packet Length - RW */
+#define E1000_WUPM     0x05A00	/* Wakeup Packet Memory - RO A */
+#define E1000_FFLT     0x05F00	/* Flexible Filter Length Table - RW Array */
+#define E1000_FFMT     0x09000	/* Flexible Filter Mask Table - RW Array */
+#define E1000_FFVT     0x09800	/* Flexible Filter Value Table - RW Array */
+
+/* Register Set (82542)
+ *
+ * Some of the 82542 registers are located at different offsets than they are
+ * in more current versions of the 8254x. Despite the difference in location,
+ * the registers function in the same manner.
+ */
+#define E1000_82542_CTRL     E1000_CTRL
+#define E1000_82542_STATUS   E1000_STATUS
+#define E1000_82542_EECD     E1000_EECD
+#define E1000_82542_EERD     E1000_EERD
+#define E1000_82542_CTRL_EXT E1000_CTRL_EXT
+#define E1000_82542_MDIC     E1000_MDIC
+#define E1000_82542_FCAL     E1000_FCAL
+#define E1000_82542_FCAH     E1000_FCAH
+#define E1000_82542_FCT      E1000_FCT
+#define E1000_82542_VET      E1000_VET
+#define E1000_82542_RA       0x00040
+#define E1000_82542_ICR      E1000_ICR
+#define E1000_82542_ITR      E1000_ITR
+#define E1000_82542_ICS      E1000_ICS
+#define E1000_82542_IMS      E1000_IMS
+#define E1000_82542_IMC      E1000_IMC
+#define E1000_82542_RCTL     E1000_RCTL
+#define E1000_82542_RDTR     0x00108
+#define E1000_82542_RDBAL    0x00110
+#define E1000_82542_RDBAH    0x00114
+#define E1000_82542_RDLEN    0x00118
+#define E1000_82542_RDH      0x00120
+#define E1000_82542_RDT      0x00128
+#define E1000_82542_FCRTH    0x00160
+#define E1000_82542_FCRTL    0x00168
+#define E1000_82542_FCTTV    E1000_FCTTV
+#define E1000_82542_TXCW     E1000_TXCW
+#define E1000_82542_RXCW     E1000_RXCW
+#define E1000_82542_MTA      0x00200
+#define E1000_82542_TCTL     E1000_TCTL
+#define E1000_82542_TIPG     E1000_TIPG
+#define E1000_82542_TDBAL    0x00420
+#define E1000_82542_TDBAH    0x00424
+#define E1000_82542_TDLEN    0x00428
+#define E1000_82542_TDH      0x00430
+#define E1000_82542_TDT      0x00438
+#define E1000_82542_TIDV     0x00440
+#define E1000_82542_TBT      E1000_TBT
+#define E1000_82542_AIT      E1000_AIT
+#define E1000_82542_VFTA     0x00600
+#define E1000_82542_LEDCTL   E1000_LEDCTL
+#define E1000_82542_PBA      E1000_PBA
+#define E1000_82542_RXDCTL   E1000_RXDCTL
+#define E1000_82542_RADV     E1000_RADV
+#define E1000_82542_RSRPD    E1000_RSRPD
+#define E1000_82542_TXDMAC   E1000_TXDMAC
+#define E1000_82542_TXDCTL   E1000_TXDCTL
+#define E1000_82542_TADV     E1000_TADV
+#define E1000_82542_TSPMT    E1000_TSPMT
+#define E1000_82542_CRCERRS  E1000_CRCERRS
+#define E1000_82542_ALGNERRC E1000_ALGNERRC
+#define E1000_82542_SYMERRS  E1000_SYMERRS
+#define E1000_82542_RXERRC   E1000_RXERRC
+#define E1000_82542_MPC      E1000_MPC
+#define E1000_82542_SCC      E1000_SCC
+#define E1000_82542_ECOL     E1000_ECOL
+#define E1000_82542_MCC      E1000_MCC
+#define E1000_82542_LATECOL  E1000_LATECOL
+#define E1000_82542_COLC     E1000_COLC
+#define E1000_82542_DC       E1000_DC
+#define E1000_82542_TNCRS    E1000_TNCRS
+#define E1000_82542_SEC      E1000_SEC
+#define E1000_82542_CEXTERR  E1000_CEXTERR
+#define E1000_82542_RLEC     E1000_RLEC
+#define E1000_82542_XONRXC   E1000_XONRXC
+#define E1000_82542_XONTXC   E1000_XONTXC
+#define E1000_82542_XOFFRXC  E1000_XOFFRXC
+#define E1000_82542_XOFFTXC  E1000_XOFFTXC
+#define E1000_82542_FCRUC    E1000_FCRUC
+#define E1000_82542_PRC64    E1000_PRC64
+#define E1000_82542_PRC127   E1000_PRC127
+#define E1000_82542_PRC255   E1000_PRC255
+#define E1000_82542_PRC511   E1000_PRC511
+#define E1000_82542_PRC1023  E1000_PRC1023
+#define E1000_82542_PRC1522  E1000_PRC1522
+#define E1000_82542_GPRC     E1000_GPRC
+#define E1000_82542_BPRC     E1000_BPRC
+#define E1000_82542_MPRC     E1000_MPRC
+#define E1000_82542_GPTC     E1000_GPTC
+#define E1000_82542_GORCL    E1000_GORCL
+#define E1000_82542_GORCH    E1000_GORCH
+#define E1000_82542_GOTCL    E1000_GOTCL
+#define E1000_82542_GOTCH    E1000_GOTCH
+#define E1000_82542_RNBC     E1000_RNBC
+#define E1000_82542_RUC      E1000_RUC
+#define E1000_82542_RFC      E1000_RFC
+#define E1000_82542_ROC      E1000_ROC
+#define E1000_82542_RJC      E1000_RJC
+#define E1000_82542_MGTPRC   E1000_MGTPRC
+#define E1000_82542_MGTPDC   E1000_MGTPDC
+#define E1000_82542_MGTPTC   E1000_MGTPTC
+#define E1000_82542_TORL     E1000_TORL
+#define E1000_82542_TORH     E1000_TORH
+#define E1000_82542_TOTL     E1000_TOTL
+#define E1000_82542_TOTH     E1000_TOTH
+#define E1000_82542_TPR      E1000_TPR
+#define E1000_82542_TPT      E1000_TPT
+#define E1000_82542_PTC64    E1000_PTC64
+#define E1000_82542_PTC127   E1000_PTC127
+#define E1000_82542_PTC255   E1000_PTC255
+#define E1000_82542_PTC511   E1000_PTC511
+#define E1000_82542_PTC1023  E1000_PTC1023
+#define E1000_82542_PTC1522  E1000_PTC1522
+#define E1000_82542_MPTC     E1000_MPTC
+#define E1000_82542_BPTC     E1000_BPTC
+#define E1000_82542_TSCTC    E1000_TSCTC
+#define E1000_82542_TSCTFC   E1000_TSCTFC
+#define E1000_82542_RXCSUM   E1000_RXCSUM
+#define E1000_82542_WUC      E1000_WUC
+#define E1000_82542_WUFC     E1000_WUFC
+#define E1000_82542_WUS      E1000_WUS
+#define E1000_82542_MANC     E1000_MANC
+#define E1000_82542_IPAV     E1000_IPAV
+#define E1000_82542_IP4AT    E1000_IP4AT
+#define E1000_82542_IP6AT    E1000_IP6AT
+#define E1000_82542_WUPL     E1000_WUPL
+#define E1000_82542_WUPM     E1000_WUPM
+#define E1000_82542_FFLT     E1000_FFLT
+#define E1000_82542_FFMT     E1000_FFMT
+#define E1000_82542_FFVT     E1000_FFVT
+
+/* Statistics counters collected by the MAC */
+struct e1000_hw_stats {
+	uint64_t crcerrs;
+	uint64_t algnerrc;
+	uint64_t symerrs;
+	uint64_t rxerrc;
+	uint64_t mpc;
+	uint64_t scc;
+	uint64_t ecol;
+	uint64_t mcc;
+	uint64_t latecol;
+	uint64_t colc;
+	uint64_t dc;
+	uint64_t tncrs;
+	uint64_t sec;
+	uint64_t cexterr;
+	uint64_t rlec;
+	uint64_t xonrxc;
+	uint64_t xontxc;
+	uint64_t xoffrxc;
+	uint64_t xofftxc;
+	uint64_t fcruc;
+	uint64_t prc64;
+	uint64_t prc127;
+	uint64_t prc255;
+	uint64_t prc511;
+	uint64_t prc1023;
+	uint64_t prc1522;
+	uint64_t gprc;
+	uint64_t bprc;
+	uint64_t mprc;
+	uint64_t gptc;
+	uint64_t gorcl;
+	uint64_t gorch;
+	uint64_t gotcl;
+	uint64_t gotch;
+	uint64_t rnbc;
+	uint64_t ruc;
+	uint64_t rfc;
+	uint64_t roc;
+	uint64_t rjc;
+	uint64_t mgprc;
+	uint64_t mgpdc;
+	uint64_t mgptc;
+	uint64_t torl;
+	uint64_t torh;
+	uint64_t totl;
+	uint64_t toth;
+	uint64_t tpr;
+	uint64_t tpt;
+	uint64_t ptc64;
+	uint64_t ptc127;
+	uint64_t ptc255;
+	uint64_t ptc511;
+	uint64_t ptc1023;
+	uint64_t ptc1522;
+	uint64_t mptc;
+	uint64_t bptc;
+	uint64_t tsctc;
+	uint64_t tsctfc;
+};
+
+/* Structure containing variables used by the shared code (e1000_hw.c) */
+struct e1000_hw {
+	pci_dev_t pdev;
+	uint8_t *hw_addr;
+	e1000_mac_type mac_type;
+	e1000_media_type media_type;
+	e1000_lan_loc lan_loc;
+	e1000_fc_type fc;
+#if 0
+	e1000_bus_speed bus_speed;
+	e1000_bus_width bus_width;
+	e1000_bus_type bus_type;
+	uint32_t io_base;
+#endif
+	uint32_t phy_id;
+	uint32_t phy_addr;
+	uint32_t original_fc;
+	uint32_t txcw;
+	uint32_t autoneg_failed;
+#if 0
+	uint32_t max_frame_size;
+	uint32_t min_frame_size;
+	uint32_t mc_filter_type;
+	uint32_t num_mc_addrs;
+	uint32_t collision_delta;
+	uint32_t tx_packet_delta;
+	uint32_t ledctl_default;
+	uint32_t ledctl_mode1;
+	uint32_t ledctl_mode2;
+#endif
+	uint16_t autoneg_advertised;
+	uint16_t pci_cmd_word;
+	uint16_t fc_high_water;
+	uint16_t fc_low_water;
+	uint16_t fc_pause_time;
+#if 0
+	uint16_t current_ifs_val;
+	uint16_t ifs_min_val;
+	uint16_t ifs_max_val;
+	uint16_t ifs_step_size;
+	uint16_t ifs_ratio;
+#endif
+	uint16_t device_id;
+	uint16_t vendor_id;
+	uint16_t subsystem_id;
+	uint16_t subsystem_vendor_id;
+	uint8_t revision_id;
+#if 0
+	uint8_t autoneg;
+	uint8_t mdix;
+	uint8_t forced_speed_duplex;
+	uint8_t wait_autoneg_complete;
+	uint8_t dma_fairness;
+#endif
+#if 0
+	uint8_t perm_mac_addr[NODE_ADDRESS_SIZE];
+	boolean_t disable_polarity_correction;
+#endif
+	boolean_t get_link_status;
+	boolean_t tbi_compatibility_en;
+	boolean_t tbi_compatibility_on;
+	boolean_t fc_send_xon;
+	boolean_t report_tx_early;
+#if 0
+	boolean_t adaptive_ifs;
+	boolean_t ifs_params_forced;
+	boolean_t in_ifs_mode;
+#endif
+};
+
+#define E1000_EEPROM_SWDPIN0   0x0001	/* SWDPIN 0 EEPROM Value */
+#define E1000_EEPROM_LED_LOGIC 0x0020	/* Led Logic Word */
+
+/* Register Bit Masks */
+/* Device Control */
+#define E1000_CTRL_FD       0x00000001	/* Full duplex.0=half; 1=full */
+#define E1000_CTRL_BEM      0x00000002	/* Endian Mode.0=little,1=big */
+#define E1000_CTRL_PRIOR    0x00000004	/* Priority on PCI. 0=rx,1=fair */
+#define E1000_CTRL_LRST     0x00000008	/* Link reset. 0=normal,1=reset */
+#define E1000_CTRL_TME      0x00000010	/* Test mode. 0=normal,1=test */
+#define E1000_CTRL_SLE      0x00000020	/* Serial Link on 0=dis,1=en */
+#define E1000_CTRL_ASDE     0x00000020	/* Auto-speed detect enable */
+#define E1000_CTRL_SLU      0x00000040	/* Set link up (Force Link) */
+#define E1000_CTRL_ILOS     0x00000080	/* Invert Loss-Of Signal */
+#define E1000_CTRL_SPD_SEL  0x00000300	/* Speed Select Mask */
+#define E1000_CTRL_SPD_10   0x00000000	/* Force 10Mb */
+#define E1000_CTRL_SPD_100  0x00000100	/* Force 100Mb */
+#define E1000_CTRL_SPD_1000 0x00000200	/* Force 1Gb */
+#define E1000_CTRL_BEM32    0x00000400	/* Big Endian 32 mode */
+#define E1000_CTRL_FRCSPD   0x00000800	/* Force Speed */
+#define E1000_CTRL_FRCDPX   0x00001000	/* Force Duplex */
+#define E1000_CTRL_SWDPIN0  0x00040000	/* SWDPIN 0 value */
+#define E1000_CTRL_SWDPIN1  0x00080000	/* SWDPIN 1 value */
+#define E1000_CTRL_SWDPIN2  0x00100000	/* SWDPIN 2 value */
+#define E1000_CTRL_SWDPIN3  0x00200000	/* SWDPIN 3 value */
+#define E1000_CTRL_SWDPIO0  0x00400000	/* SWDPIN 0 Input or output */
+#define E1000_CTRL_SWDPIO1  0x00800000	/* SWDPIN 1 input or output */
+#define E1000_CTRL_SWDPIO2  0x01000000	/* SWDPIN 2 input or output */
+#define E1000_CTRL_SWDPIO3  0x02000000	/* SWDPIN 3 input or output */
+#define E1000_CTRL_RST      0x04000000	/* Global reset */
+#define E1000_CTRL_RFCE     0x08000000	/* Receive Flow Control enable */
+#define E1000_CTRL_TFCE     0x10000000	/* Transmit flow control enable */
+#define E1000_CTRL_RTE      0x20000000	/* Routing tag enable */
+#define E1000_CTRL_VME      0x40000000	/* IEEE VLAN mode enable */
+#define E1000_CTRL_PHY_RST  0x80000000	/* PHY Reset */
+
+/* Device Status */
+#define E1000_STATUS_FD         0x00000001	/* Full duplex.0=half,1=full */
+#define E1000_STATUS_LU         0x00000002	/* Link up.0=no,1=link */
+#define E1000_STATUS_FUNC_MASK  0x0000000C	/* PCI Function Mask */
+#define E1000_STATUS_FUNC_0     0x00000000	/* Function 0 */
+#define E1000_STATUS_FUNC_1     0x00000004	/* Function 1 */
+#define E1000_STATUS_TXOFF      0x00000010	/* transmission paused */
+#define E1000_STATUS_TBIMODE    0x00000020	/* TBI mode */
+#define E1000_STATUS_SPEED_MASK 0x000000C0
+#define E1000_STATUS_SPEED_10   0x00000000	/* Speed 10Mb/s */
+#define E1000_STATUS_SPEED_100  0x00000040	/* Speed 100Mb/s */
+#define E1000_STATUS_SPEED_1000 0x00000080	/* Speed 1000Mb/s */
+#define E1000_STATUS_ASDV       0x00000300	/* Auto speed detect value */
+#define E1000_STATUS_MTXCKOK    0x00000400	/* MTX clock running OK */
+#define E1000_STATUS_PCI66      0x00000800	/* In 66Mhz slot */
+#define E1000_STATUS_BUS64      0x00001000	/* In 64 bit slot */
+#define E1000_STATUS_PCIX_MODE  0x00002000	/* PCI-X mode */
+#define E1000_STATUS_PCIX_SPEED 0x0000C000	/* PCI-X bus speed */
+
+/* Constants used to intrepret the masked PCI-X bus speed. */
+#define E1000_STATUS_PCIX_SPEED_66  0x00000000	/* PCI-X bus speed  50-66 MHz */
+#define E1000_STATUS_PCIX_SPEED_100 0x00004000	/* PCI-X bus speed  66-100 MHz */
+#define E1000_STATUS_PCIX_SPEED_133 0x00008000	/* PCI-X bus speed 100-133 MHz */
+
+/* EEPROM/Flash Control */
+#define E1000_EECD_SK        0x00000001	/* EEPROM Clock */
+#define E1000_EECD_CS        0x00000002	/* EEPROM Chip Select */
+#define E1000_EECD_DI        0x00000004	/* EEPROM Data In */
+#define E1000_EECD_DO        0x00000008	/* EEPROM Data Out */
+#define E1000_EECD_FWE_MASK  0x00000030
+#define E1000_EECD_FWE_DIS   0x00000010	/* Disable FLASH writes */
+#define E1000_EECD_FWE_EN    0x00000020	/* Enable FLASH writes */
+#define E1000_EECD_FWE_SHIFT 4
+#define E1000_EECD_SIZE      0x00000200	/* EEPROM Size (0=64 word 1=256 word) */
+#define E1000_EECD_REQ       0x00000040	/* EEPROM Access Request */
+#define E1000_EECD_GNT       0x00000080	/* EEPROM Access Grant */
+#define E1000_EECD_PRES      0x00000100	/* EEPROM Present */
+
+/* EEPROM Read */
+#define E1000_EERD_START      0x00000001	/* Start Read */
+#define E1000_EERD_DONE       0x00000010	/* Read Done */
+#define E1000_EERD_ADDR_SHIFT 8
+#define E1000_EERD_ADDR_MASK  0x0000FF00	/* Read Address */
+#define E1000_EERD_DATA_SHIFT 16
+#define E1000_EERD_DATA_MASK  0xFFFF0000	/* Read Data */
+
+/* Extended Device Control */
+#define E1000_CTRL_EXT_GPI0_EN   0x00000001	/* Maps SDP4 to GPI0 */
+#define E1000_CTRL_EXT_GPI1_EN   0x00000002	/* Maps SDP5 to GPI1 */
+#define E1000_CTRL_EXT_PHYINT_EN E1000_CTRL_EXT_GPI1_EN
+#define E1000_CTRL_EXT_GPI2_EN   0x00000004	/* Maps SDP6 to GPI2 */
+#define E1000_CTRL_EXT_GPI3_EN   0x00000008	/* Maps SDP7 to GPI3 */
+#define E1000_CTRL_EXT_SDP4_DATA 0x00000010	/* Value of SW Defineable Pin 4 */
+#define E1000_CTRL_EXT_SDP5_DATA 0x00000020	/* Value of SW Defineable Pin 5 */
+#define E1000_CTRL_EXT_PHY_INT   E1000_CTRL_EXT_SDP5_DATA
+#define E1000_CTRL_EXT_SDP6_DATA 0x00000040	/* Value of SW Defineable Pin 6 */
+#define E1000_CTRL_EXT_SWDPIN6 	 0x00000040	/* SWDPIN 6 value */
+#define E1000_CTRL_EXT_SDP7_DATA 0x00000080	/* Value of SW Defineable Pin 7 */
+#define E1000_CTRL_EXT_SWDPIN7 	 0x00000080	/* SWDPIN 7 value */
+#define E1000_CTRL_EXT_SDP4_DIR  0x00000100	/* Direction of SDP4 0=in 1=out */
+#define E1000_CTRL_EXT_SDP5_DIR  0x00000200	/* Direction of SDP5 0=in 1=out */
+#define E1000_CTRL_EXT_SDP6_DIR  0x00000400	/* Direction of SDP6 0=in 1=out */
+#define E1000_CTRL_EXT_SWDPIO6   0x00000400	/* SWDPIN 6 Input or output */
+#define E1000_CTRL_EXT_SDP7_DIR  0x00000800	/* Direction of SDP7 0=in 1=out */
+#define E1000_CTRL_EXT_SWDPIO7   0x00000800	/* SWDPIN 7 Input or output */
+#define E1000_CTRL_EXT_ASDCHK    0x00001000	/* Initiate an ASD sequence */
+#define E1000_CTRL_EXT_EE_RST    0x00002000	/* Reinitialize from EEPROM */
+#define E1000_CTRL_EXT_IPS       0x00004000	/* Invert Power State */
+#define E1000_CTRL_EXT_SPD_BYPS  0x00008000	/* Speed Select Bypass */
+#define E1000_CTRL_EXT_LINK_MODE_MASK 0x00C00000
+#define E1000_CTRL_EXT_LINK_MODE_GMII 0x00000000
+#define E1000_CTRL_EXT_LINK_MODE_TBI  0x00C00000
+#define E1000_CTRL_EXT_WR_WMARK_MASK  0x03000000
+#define E1000_CTRL_EXT_WR_WMARK_256   0x00000000
+#define E1000_CTRL_EXT_WR_WMARK_320   0x01000000
+#define E1000_CTRL_EXT_WR_WMARK_384   0x02000000
+#define E1000_CTRL_EXT_WR_WMARK_448   0x03000000
+
+/* MDI Control */
+#define E1000_MDIC_DATA_MASK 0x0000FFFF
+#define E1000_MDIC_REG_MASK  0x001F0000
+#define E1000_MDIC_REG_SHIFT 16
+#define E1000_MDIC_PHY_MASK  0x03E00000
+#define E1000_MDIC_PHY_SHIFT 21
+#define E1000_MDIC_OP_WRITE  0x04000000
+#define E1000_MDIC_OP_READ   0x08000000
+#define E1000_MDIC_READY     0x10000000
+#define E1000_MDIC_INT_EN    0x20000000
+#define E1000_MDIC_ERROR     0x40000000
+
+/* LED Control */
+#define E1000_LEDCTL_LED0_MODE_MASK  0x0000000F
+#define E1000_LEDCTL_LED0_MODE_SHIFT 0
+#define E1000_LEDCTL_LED0_IVRT       0x00000040
+#define E1000_LEDCTL_LED0_BLINK      0x00000080
+#define E1000_LEDCTL_LED1_MODE_MASK  0x00000F00
+#define E1000_LEDCTL_LED1_MODE_SHIFT 8
+#define E1000_LEDCTL_LED1_IVRT       0x00004000
+#define E1000_LEDCTL_LED1_BLINK      0x00008000
+#define E1000_LEDCTL_LED2_MODE_MASK  0x000F0000
+#define E1000_LEDCTL_LED2_MODE_SHIFT 16
+#define E1000_LEDCTL_LED2_IVRT       0x00400000
+#define E1000_LEDCTL_LED2_BLINK      0x00800000
+#define E1000_LEDCTL_LED3_MODE_MASK  0x0F000000
+#define E1000_LEDCTL_LED3_MODE_SHIFT 24
+#define E1000_LEDCTL_LED3_IVRT       0x40000000
+#define E1000_LEDCTL_LED3_BLINK      0x80000000
+
+#define E1000_LEDCTL_MODE_LINK_10_1000  0x0
+#define E1000_LEDCTL_MODE_LINK_100_1000 0x1
+#define E1000_LEDCTL_MODE_LINK_UP       0x2
+#define E1000_LEDCTL_MODE_ACTIVITY      0x3
+#define E1000_LEDCTL_MODE_LINK_ACTIVITY 0x4
+#define E1000_LEDCTL_MODE_LINK_10       0x5
+#define E1000_LEDCTL_MODE_LINK_100      0x6
+#define E1000_LEDCTL_MODE_LINK_1000     0x7
+#define E1000_LEDCTL_MODE_PCIX_MODE     0x8
+#define E1000_LEDCTL_MODE_FULL_DUPLEX   0x9
+#define E1000_LEDCTL_MODE_COLLISION     0xA
+#define E1000_LEDCTL_MODE_BUS_SPEED     0xB
+#define E1000_LEDCTL_MODE_BUS_SIZE      0xC
+#define E1000_LEDCTL_MODE_PAUSED        0xD
+#define E1000_LEDCTL_MODE_LED_ON        0xE
+#define E1000_LEDCTL_MODE_LED_OFF       0xF
+
+/* Receive Address */
+#define E1000_RAH_AV  0x80000000	/* Receive descriptor valid */
+
+/* Interrupt Cause Read */
+#define E1000_ICR_TXDW    0x00000001	/* Transmit desc written back */
+#define E1000_ICR_TXQE    0x00000002	/* Transmit Queue empty */
+#define E1000_ICR_LSC     0x00000004	/* Link Status Change */
+#define E1000_ICR_RXSEQ   0x00000008	/* rx sequence error */
+#define E1000_ICR_RXDMT0  0x00000010	/* rx desc min. threshold (0) */
+#define E1000_ICR_RXO     0x00000040	/* rx overrun */
+#define E1000_ICR_RXT0    0x00000080	/* rx timer intr (ring 0) */
+#define E1000_ICR_MDAC    0x00000200	/* MDIO access complete */
+#define E1000_ICR_RXCFG   0x00000400	/* RX /c/ ordered set */
+#define E1000_ICR_GPI_EN0 0x00000800	/* GP Int 0 */
+#define E1000_ICR_GPI_EN1 0x00001000	/* GP Int 1 */
+#define E1000_ICR_GPI_EN2 0x00002000	/* GP Int 2 */
+#define E1000_ICR_GPI_EN3 0x00004000	/* GP Int 3 */
+#define E1000_ICR_TXD_LOW 0x00008000
+#define E1000_ICR_SRPD    0x00010000
+
+/* Interrupt Cause Set */
+#define E1000_ICS_TXDW    E1000_ICR_TXDW	/* Transmit desc written back */
+#define E1000_ICS_TXQE    E1000_ICR_TXQE	/* Transmit Queue empty */
+#define E1000_ICS_LSC     E1000_ICR_LSC	/* Link Status Change */
+#define E1000_ICS_RXSEQ   E1000_ICR_RXSEQ	/* rx sequence error */
+#define E1000_ICS_RXDMT0  E1000_ICR_RXDMT0	/* rx desc min. threshold */
+#define E1000_ICS_RXO     E1000_ICR_RXO	/* rx overrun */
+#define E1000_ICS_RXT0    E1000_ICR_RXT0	/* rx timer intr */
+#define E1000_ICS_MDAC    E1000_ICR_MDAC	/* MDIO access complete */
+#define E1000_ICS_RXCFG   E1000_ICR_RXCFG	/* RX /c/ ordered set */
+#define E1000_ICS_GPI_EN0 E1000_ICR_GPI_EN0	/* GP Int 0 */
+#define E1000_ICS_GPI_EN1 E1000_ICR_GPI_EN1	/* GP Int 1 */
+#define E1000_ICS_GPI_EN2 E1000_ICR_GPI_EN2	/* GP Int 2 */
+#define E1000_ICS_GPI_EN3 E1000_ICR_GPI_EN3	/* GP Int 3 */
+#define E1000_ICS_TXD_LOW E1000_ICR_TXD_LOW
+#define E1000_ICS_SRPD    E1000_ICR_SRPD
+
+/* Interrupt Mask Set */
+#define E1000_IMS_TXDW    E1000_ICR_TXDW	/* Transmit desc written back */
+#define E1000_IMS_TXQE    E1000_ICR_TXQE	/* Transmit Queue empty */
+#define E1000_IMS_LSC     E1000_ICR_LSC	/* Link Status Change */
+#define E1000_IMS_RXSEQ   E1000_ICR_RXSEQ	/* rx sequence error */
+#define E1000_IMS_RXDMT0  E1000_ICR_RXDMT0	/* rx desc min. threshold */
+#define E1000_IMS_RXO     E1000_ICR_RXO	/* rx overrun */
+#define E1000_IMS_RXT0    E1000_ICR_RXT0	/* rx timer intr */
+#define E1000_IMS_MDAC    E1000_ICR_MDAC	/* MDIO access complete */
+#define E1000_IMS_RXCFG   E1000_ICR_RXCFG	/* RX /c/ ordered set */
+#define E1000_IMS_GPI_EN0 E1000_ICR_GPI_EN0	/* GP Int 0 */
+#define E1000_IMS_GPI_EN1 E1000_ICR_GPI_EN1	/* GP Int 1 */
+#define E1000_IMS_GPI_EN2 E1000_ICR_GPI_EN2	/* GP Int 2 */
+#define E1000_IMS_GPI_EN3 E1000_ICR_GPI_EN3	/* GP Int 3 */
+#define E1000_IMS_TXD_LOW E1000_ICR_TXD_LOW
+#define E1000_IMS_SRPD    E1000_ICR_SRPD
+
+/* Interrupt Mask Clear */
+#define E1000_IMC_TXDW    E1000_ICR_TXDW	/* Transmit desc written back */
+#define E1000_IMC_TXQE    E1000_ICR_TXQE	/* Transmit Queue empty */
+#define E1000_IMC_LSC     E1000_ICR_LSC	/* Link Status Change */
+#define E1000_IMC_RXSEQ   E1000_ICR_RXSEQ	/* rx sequence error */
+#define E1000_IMC_RXDMT0  E1000_ICR_RXDMT0	/* rx desc min. threshold */
+#define E1000_IMC_RXO     E1000_ICR_RXO	/* rx overrun */
+#define E1000_IMC_RXT0    E1000_ICR_RXT0	/* rx timer intr */
+#define E1000_IMC_MDAC    E1000_ICR_MDAC	/* MDIO access complete */
+#define E1000_IMC_RXCFG   E1000_ICR_RXCFG	/* RX /c/ ordered set */
+#define E1000_IMC_GPI_EN0 E1000_ICR_GPI_EN0	/* GP Int 0 */
+#define E1000_IMC_GPI_EN1 E1000_ICR_GPI_EN1	/* GP Int 1 */
+#define E1000_IMC_GPI_EN2 E1000_ICR_GPI_EN2	/* GP Int 2 */
+#define E1000_IMC_GPI_EN3 E1000_ICR_GPI_EN3	/* GP Int 3 */
+#define E1000_IMC_TXD_LOW E1000_ICR_TXD_LOW
+#define E1000_IMC_SRPD    E1000_ICR_SRPD
+
+/* Receive Control */
+#define E1000_RCTL_RST          0x00000001	/* Software reset */
+#define E1000_RCTL_EN           0x00000002	/* enable */
+#define E1000_RCTL_SBP          0x00000004	/* store bad packet */
+#define E1000_RCTL_UPE          0x00000008	/* unicast promiscuous enable */
+#define E1000_RCTL_MPE          0x00000010	/* multicast promiscuous enab */
+#define E1000_RCTL_LPE          0x00000020	/* long packet enable */
+#define E1000_RCTL_LBM_NO       0x00000000	/* no loopback mode */
+#define E1000_RCTL_LBM_MAC      0x00000040	/* MAC loopback mode */
+#define E1000_RCTL_LBM_SLP      0x00000080	/* serial link loopback mode */
+#define E1000_RCTL_LBM_TCVR     0x000000C0	/* tcvr loopback mode */
+#define E1000_RCTL_RDMTS_HALF   0x00000000	/* rx desc min threshold size */
+#define E1000_RCTL_RDMTS_QUAT   0x00000100	/* rx desc min threshold size */
+#define E1000_RCTL_RDMTS_EIGTH  0x00000200	/* rx desc min threshold size */
+#define E1000_RCTL_MO_SHIFT     12	/* multicast offset shift */
+#define E1000_RCTL_MO_0         0x00000000	/* multicast offset 11:0 */
+#define E1000_RCTL_MO_1         0x00001000	/* multicast offset 12:1 */
+#define E1000_RCTL_MO_2         0x00002000	/* multicast offset 13:2 */
+#define E1000_RCTL_MO_3         0x00003000	/* multicast offset 15:4 */
+#define E1000_RCTL_MDR          0x00004000	/* multicast desc ring 0 */
+#define E1000_RCTL_BAM          0x00008000	/* broadcast enable */
+/* these buffer sizes are valid if E1000_RCTL_BSEX is 0 */
+#define E1000_RCTL_SZ_2048      0x00000000	/* rx buffer size 2048 */
+#define E1000_RCTL_SZ_1024      0x00010000	/* rx buffer size 1024 */
+#define E1000_RCTL_SZ_512       0x00020000	/* rx buffer size 512 */
+#define E1000_RCTL_SZ_256       0x00030000	/* rx buffer size 256 */
+/* these buffer sizes are valid if E1000_RCTL_BSEX is 1 */
+#define E1000_RCTL_SZ_16384     0x00010000	/* rx buffer size 16384 */
+#define E1000_RCTL_SZ_8192      0x00020000	/* rx buffer size 8192 */
+#define E1000_RCTL_SZ_4096      0x00030000	/* rx buffer size 4096 */
+#define E1000_RCTL_VFE          0x00040000	/* vlan filter enable */
+#define E1000_RCTL_CFIEN        0x00080000	/* canonical form enable */
+#define E1000_RCTL_CFI          0x00100000	/* canonical form indicator */
+#define E1000_RCTL_DPF          0x00400000	/* discard pause frames */
+#define E1000_RCTL_PMCF         0x00800000	/* pass MAC control frames */
+#define E1000_RCTL_BSEX         0x02000000	/* Buffer size extension */
+
+/* Receive Descriptor */
+#define E1000_RDT_DELAY 0x0000ffff	/* Delay timer (1=1024us) */
+#define E1000_RDT_FPDB  0x80000000	/* Flush descriptor block */
+#define E1000_RDLEN_LEN 0x0007ff80	/* descriptor length */
+#define E1000_RDH_RDH   0x0000ffff	/* receive descriptor head */
+#define E1000_RDT_RDT   0x0000ffff	/* receive descriptor tail */
+
+/* Flow Control */
+#define E1000_FCRTH_RTH  0x0000FFF8	/* Mask Bits[15:3] for RTH */
+#define E1000_FCRTH_XFCE 0x80000000	/* External Flow Control Enable */
+#define E1000_FCRTL_RTL  0x0000FFF8	/* Mask Bits[15:3] for RTL */
+#define E1000_FCRTL_XONE 0x80000000	/* Enable XON frame transmission */
+
+/* Receive Descriptor Control */
+#define E1000_RXDCTL_PTHRESH 0x0000003F	/* RXDCTL Prefetch Threshold */
+#define E1000_RXDCTL_HTHRESH 0x00003F00	/* RXDCTL Host Threshold */
+#define E1000_RXDCTL_WTHRESH 0x003F0000	/* RXDCTL Writeback Threshold */
+#define E1000_RXDCTL_GRAN    0x01000000	/* RXDCTL Granularity */
+
+/* Transmit Descriptor Control */
+#define E1000_TXDCTL_PTHRESH 0x000000FF	/* TXDCTL Prefetch Threshold */
+#define E1000_TXDCTL_HTHRESH 0x0000FF00	/* TXDCTL Host Threshold */
+#define E1000_TXDCTL_WTHRESH 0x00FF0000	/* TXDCTL Writeback Threshold */
+#define E1000_TXDCTL_GRAN    0x01000000	/* TXDCTL Granularity */
+#define E1000_TXDCTL_LWTHRESH 0xFE000000	/* TXDCTL Low Threshold */
+#define E1000_TXDCTL_FULL_TX_DESC_WB 0x01010000	/* GRAN=1, WTHRESH=1 */
+
+/* Transmit Configuration Word */
+#define E1000_TXCW_FD         0x00000020	/* TXCW full duplex */
+#define E1000_TXCW_HD         0x00000040	/* TXCW half duplex */
+#define E1000_TXCW_PAUSE      0x00000080	/* TXCW sym pause request */
+#define E1000_TXCW_ASM_DIR    0x00000100	/* TXCW astm pause direction */
+#define E1000_TXCW_PAUSE_MASK 0x00000180	/* TXCW pause request mask */
+#define E1000_TXCW_RF         0x00003000	/* TXCW remote fault */
+#define E1000_TXCW_NP         0x00008000	/* TXCW next page */
+#define E1000_TXCW_CW         0x0000ffff	/* TxConfigWord mask */
+#define E1000_TXCW_TXC        0x40000000	/* Transmit Config control */
+#define E1000_TXCW_ANE        0x80000000	/* Auto-neg enable */
+
+/* Receive Configuration Word */
+#define E1000_RXCW_CW    0x0000ffff	/* RxConfigWord mask */
+#define E1000_RXCW_NC    0x04000000	/* Receive config no carrier */
+#define E1000_RXCW_IV    0x08000000	/* Receive config invalid */
+#define E1000_RXCW_CC    0x10000000	/* Receive config change */
+#define E1000_RXCW_C     0x20000000	/* Receive config */
+#define E1000_RXCW_SYNCH 0x40000000	/* Receive config synch */
+#define E1000_RXCW_ANC   0x80000000	/* Auto-neg complete */
+
+/* Transmit Control */
+#define E1000_TCTL_RST    0x00000001	/* software reset */
+#define E1000_TCTL_EN     0x00000002	/* enable tx */
+#define E1000_TCTL_BCE    0x00000004	/* busy check enable */
+#define E1000_TCTL_PSP    0x00000008	/* pad short packets */
+#define E1000_TCTL_CT     0x00000ff0	/* collision threshold */
+#define E1000_TCTL_COLD   0x003ff000	/* collision distance */
+#define E1000_TCTL_SWXOFF 0x00400000	/* SW Xoff transmission */
+#define E1000_TCTL_PBE    0x00800000	/* Packet Burst Enable */
+#define E1000_TCTL_RTLC   0x01000000	/* Re-transmit on late collision */
+#define E1000_TCTL_NRTU   0x02000000	/* No Re-transmit on underrun */
+
+/* Receive Checksum Control */
+#define E1000_RXCSUM_PCSS_MASK 0x000000FF	/* Packet Checksum Start */
+#define E1000_RXCSUM_IPOFL     0x00000100	/* IPv4 checksum offload */
+#define E1000_RXCSUM_TUOFL     0x00000200	/* TCP / UDP checksum offload */
+#define E1000_RXCSUM_IPV6OFL   0x00000400	/* IPv6 checksum offload */
+
+/* Definitions for power management and wakeup registers */
+/* Wake Up Control */
+#define E1000_WUC_APME       0x00000001	/* APM Enable */
+#define E1000_WUC_PME_EN     0x00000002	/* PME Enable */
+#define E1000_WUC_PME_STATUS 0x00000004	/* PME Status */
+#define E1000_WUC_APMPME     0x00000008	/* Assert PME on APM Wakeup */
+
+/* Wake Up Filter Control */
+#define E1000_WUFC_LNKC 0x00000001	/* Link Status Change Wakeup Enable */
+#define E1000_WUFC_MAG  0x00000002	/* Magic Packet Wakeup Enable */
+#define E1000_WUFC_EX   0x00000004	/* Directed Exact Wakeup Enable */
+#define E1000_WUFC_MC   0x00000008	/* Directed Multicast Wakeup Enable */
+#define E1000_WUFC_BC   0x00000010	/* Broadcast Wakeup Enable */
+#define E1000_WUFC_ARP  0x00000020	/* ARP Request Packet Wakeup Enable */
+#define E1000_WUFC_IPV4 0x00000040	/* Directed IPv4 Packet Wakeup Enable */
+#define E1000_WUFC_IPV6 0x00000080	/* Directed IPv6 Packet Wakeup Enable */
+#define E1000_WUFC_FLX0 0x00010000	/* Flexible Filter 0 Enable */
+#define E1000_WUFC_FLX1 0x00020000	/* Flexible Filter 1 Enable */
+#define E1000_WUFC_FLX2 0x00040000	/* Flexible Filter 2 Enable */
+#define E1000_WUFC_FLX3 0x00080000	/* Flexible Filter 3 Enable */
+#define E1000_WUFC_ALL_FILTERS 0x000F00FF	/* Mask for all wakeup filters */
+#define E1000_WUFC_FLX_OFFSET 16	/* Offset to the Flexible Filters bits */
+#define E1000_WUFC_FLX_FILTERS 0x000F0000	/* Mask for the 4 flexible filters */
+
+/* Wake Up Status */
+#define E1000_WUS_LNKC 0x00000001	/* Link Status Changed */
+#define E1000_WUS_MAG  0x00000002	/* Magic Packet Received */
+#define E1000_WUS_EX   0x00000004	/* Directed Exact Received */
+#define E1000_WUS_MC   0x00000008	/* Directed Multicast Received */
+#define E1000_WUS_BC   0x00000010	/* Broadcast Received */
+#define E1000_WUS_ARP  0x00000020	/* ARP Request Packet Received */
+#define E1000_WUS_IPV4 0x00000040	/* Directed IPv4 Packet Wakeup Received */
+#define E1000_WUS_IPV6 0x00000080	/* Directed IPv6 Packet Wakeup Received */
+#define E1000_WUS_FLX0 0x00010000	/* Flexible Filter 0 Match */
+#define E1000_WUS_FLX1 0x00020000	/* Flexible Filter 1 Match */
+#define E1000_WUS_FLX2 0x00040000	/* Flexible Filter 2 Match */
+#define E1000_WUS_FLX3 0x00080000	/* Flexible Filter 3 Match */
+#define E1000_WUS_FLX_FILTERS 0x000F0000	/* Mask for the 4 flexible filters */
+
+/* Management Control */
+#define E1000_MANC_SMBUS_EN      0x00000001	/* SMBus Enabled - RO */
+#define E1000_MANC_ASF_EN        0x00000002	/* ASF Enabled - RO */
+#define E1000_MANC_R_ON_FORCE    0x00000004	/* Reset on Force TCO - RO */
+#define E1000_MANC_RMCP_EN       0x00000100	/* Enable RCMP 026Fh Filtering */
+#define E1000_MANC_0298_EN       0x00000200	/* Enable RCMP 0298h Filtering */
+#define E1000_MANC_IPV4_EN       0x00000400	/* Enable IPv4 */
+#define E1000_MANC_IPV6_EN       0x00000800	/* Enable IPv6 */
+#define E1000_MANC_SNAP_EN       0x00001000	/* Accept LLC/SNAP */
+#define E1000_MANC_ARP_EN        0x00002000	/* Enable ARP Request Filtering */
+#define E1000_MANC_NEIGHBOR_EN   0x00004000	/* Enable Neighbor Discovery 
+						 * Filtering */
+#define E1000_MANC_TCO_RESET     0x00010000	/* TCO Reset Occurred */
+#define E1000_MANC_RCV_TCO_EN    0x00020000	/* Receive TCO Packets Enabled */
+#define E1000_MANC_REPORT_STATUS 0x00040000	/* Status Reporting Enabled */
+#define E1000_MANC_SMB_REQ       0x01000000	/* SMBus Request */
+#define E1000_MANC_SMB_GNT       0x02000000	/* SMBus Grant */
+#define E1000_MANC_SMB_CLK_IN    0x04000000	/* SMBus Clock In */
+#define E1000_MANC_SMB_DATA_IN   0x08000000	/* SMBus Data In */
+#define E1000_MANC_SMB_DATA_OUT  0x10000000	/* SMBus Data Out */
+#define E1000_MANC_SMB_CLK_OUT   0x20000000	/* SMBus Clock Out */
+
+#define E1000_MANC_SMB_DATA_OUT_SHIFT  28	/* SMBus Data Out Shift */
+#define E1000_MANC_SMB_CLK_OUT_SHIFT   29	/* SMBus Clock Out Shift */
+
+/* Wake Up Packet Length */
+#define E1000_WUPL_LENGTH_MASK 0x0FFF	/* Only the lower 12 bits are valid */
+
+#define E1000_MDALIGN          4096
+
+/* EEPROM Commands */
+#define EEPROM_READ_OPCODE  0x6	/* EERPOM read opcode */
+#define EEPROM_WRITE_OPCODE 0x5	/* EERPOM write opcode */
+#define EEPROM_ERASE_OPCODE 0x7	/* EERPOM erase opcode */
+#define EEPROM_EWEN_OPCODE  0x13	/* EERPOM erase/write enable */
+#define EEPROM_EWDS_OPCODE  0x10	/* EERPOM erast/write disable */
+
+/* EEPROM Word Offsets */
+#define EEPROM_COMPAT              0x0003
+#define EEPROM_ID_LED_SETTINGS     0x0004
+#define EEPROM_INIT_CONTROL1_REG   0x000A
+#define EEPROM_INIT_CONTROL2_REG   0x000F
+#define EEPROM_FLASH_VERSION       0x0032
+#define EEPROM_CHECKSUM_REG        0x003F
+
+/* Word definitions for ID LED Settings */
+#define ID_LED_RESERVED_0000 0x0000
+#define ID_LED_RESERVED_FFFF 0xFFFF
+#define ID_LED_DEFAULT       ((ID_LED_OFF1_ON2 << 12) | \
+                              (ID_LED_OFF1_OFF2 << 8) | \
+                              (ID_LED_DEF1_DEF2 << 4) | \
+                              (ID_LED_DEF1_DEF2))
+#define ID_LED_DEF1_DEF2     0x1
+#define ID_LED_DEF1_ON2      0x2
+#define ID_LED_DEF1_OFF2     0x3
+#define ID_LED_ON1_DEF2      0x4
+#define ID_LED_ON1_ON2       0x5
+#define ID_LED_ON1_OFF2      0x6
+#define ID_LED_OFF1_DEF2     0x7
+#define ID_LED_OFF1_ON2      0x8
+#define ID_LED_OFF1_OFF2     0x9
+
+/* Mask bits for fields in Word 0x03 of the EEPROM */
+#define EEPROM_COMPAT_SERVER 0x0400
+#define EEPROM_COMPAT_CLIENT 0x0200
+
+/* Mask bits for fields in Word 0x0a of the EEPROM */
+#define EEPROM_WORD0A_ILOS   0x0010
+#define EEPROM_WORD0A_SWDPIO 0x01E0
+#define EEPROM_WORD0A_LRST   0x0200
+#define EEPROM_WORD0A_FD     0x0400
+#define EEPROM_WORD0A_66MHZ  0x0800
+
+/* Mask bits for fields in Word 0x0f of the EEPROM */
+#define EEPROM_WORD0F_PAUSE_MASK 0x3000
+#define EEPROM_WORD0F_PAUSE      0x1000
+#define EEPROM_WORD0F_ASM_DIR    0x2000
+#define EEPROM_WORD0F_ANE        0x0800
+#define EEPROM_WORD0F_SWPDIO_EXT 0x00F0
+
+/* For checksumming, the sum of all words in the EEPROM should equal 0xBABA. */
+#define EEPROM_SUM 0xBABA
+
+/* EEPROM Map defines (WORD OFFSETS)*/
+#define EEPROM_NODE_ADDRESS_BYTE_0 0
+#define EEPROM_PBA_BYTE_1          8
+
+/* EEPROM Map Sizes (Byte Counts) */
+#define PBA_SIZE 4
+
+/* Collision related configuration parameters */
+#define E1000_COLLISION_THRESHOLD       16
+#define E1000_CT_SHIFT                  4
+#define E1000_COLLISION_DISTANCE        64
+#define E1000_FDX_COLLISION_DISTANCE    E1000_COLLISION_DISTANCE
+#define E1000_HDX_COLLISION_DISTANCE    E1000_COLLISION_DISTANCE
+#define E1000_GB_HDX_COLLISION_DISTANCE 512
+#define E1000_COLD_SHIFT                12
+
+/* The number of Transmit and Receive Descriptors must be a multiple of 8 */
+#define REQ_TX_DESCRIPTOR_MULTIPLE  8
+#define REQ_RX_DESCRIPTOR_MULTIPLE  8
+
+/* Default values for the transmit IPG register */
+#define DEFAULT_82542_TIPG_IPGT        10
+#define DEFAULT_82543_TIPG_IPGT_FIBER  9
+#define DEFAULT_82543_TIPG_IPGT_COPPER 8
+
+#define E1000_TIPG_IPGT_MASK  0x000003FF
+#define E1000_TIPG_IPGR1_MASK 0x000FFC00
+#define E1000_TIPG_IPGR2_MASK 0x3FF00000
+
+#define DEFAULT_82542_TIPG_IPGR1 2
+#define DEFAULT_82543_TIPG_IPGR1 8
+#define E1000_TIPG_IPGR1_SHIFT  10
+
+#define DEFAULT_82542_TIPG_IPGR2 10
+#define DEFAULT_82543_TIPG_IPGR2 6
+#define E1000_TIPG_IPGR2_SHIFT  20
+
+#define E1000_TXDMAC_DPP 0x00000001
+
+/* Adaptive IFS defines */
+#define TX_THRESHOLD_START     8
+#define TX_THRESHOLD_INCREMENT 10
+#define TX_THRESHOLD_DECREMENT 1
+#define TX_THRESHOLD_STOP      190
+#define TX_THRESHOLD_DISABLE   0
+#define TX_THRESHOLD_TIMER_MS  10000
+#define MIN_NUM_XMITS          1000
+#define IFS_MAX                80
+#define IFS_STEP               10
+#define IFS_MIN                40
+#define IFS_RATIO              4
+
+/* PBA constants */
+#define E1000_PBA_16K 0x0010	/* 16KB, default TX allocation */
+#define E1000_PBA_24K 0x0018
+#define E1000_PBA_40K 0x0028
+#define E1000_PBA_48K 0x0030	/* 48KB, default RX allocation */
+
+/* Flow Control Constants */
+#define FLOW_CONTROL_ADDRESS_LOW  0x00C28001
+#define FLOW_CONTROL_ADDRESS_HIGH 0x00000100
+#define FLOW_CONTROL_TYPE         0x8808
+
+/* The historical defaults for the flow control values are given below. */
+#define FC_DEFAULT_HI_THRESH        (0x8000)	/* 32KB */
+#define FC_DEFAULT_LO_THRESH        (0x4000)	/* 16KB */
+#define FC_DEFAULT_TX_TIMER         (0x100)	/* ~130 us */
+
+/* Flow Control High-Watermark: 43464 bytes */
+#define E1000_FC_HIGH_THRESH 0xA9C8
+/* Flow Control Low-Watermark: 43456 bytes */
+#define E1000_FC_LOW_THRESH 0xA9C0
+/* Flow Control Pause Time: 858 usec */
+#define E1000_FC_PAUSE_TIME 0x0680
+
+/* PCIX Config space */
+#define PCIX_COMMAND_REGISTER    0xE6
+#define PCIX_STATUS_REGISTER_LO  0xE8
+#define PCIX_STATUS_REGISTER_HI  0xEA
+
+#define PCIX_COMMAND_MMRBC_MASK      0x000C
+#define PCIX_COMMAND_MMRBC_SHIFT     0x2
+#define PCIX_STATUS_HI_MMRBC_MASK    0x0060
+#define PCIX_STATUS_HI_MMRBC_SHIFT   0x5
+#define PCIX_STATUS_HI_MMRBC_4K      0x3
+#define PCIX_STATUS_HI_MMRBC_2K      0x2
+
+/* The number of bits that we need to shift right to move the "pause"
+ * bits from the EEPROM (bits 13:12) to the "pause" (bits 8:7) field
+ * in the TXCW register 
+ */
+#define PAUSE_SHIFT 5
+
+/* The number of bits that we need to shift left to move the "SWDPIO"
+ * bits from the EEPROM (bits 8:5) to the "SWDPIO" (bits 25:22) field
+ * in the CTRL register 
+ */
+#define SWDPIO_SHIFT 17
+
+/* The number of bits that we need to shift left to move the "SWDPIO_EXT"
+ * bits from the EEPROM word F (bits 7:4) to the bits 11:8 of The
+ * Extended CTRL register.
+ * in the CTRL register 
+ */
+#define SWDPIO__EXT_SHIFT 4
+
+/* The number of bits that we need to shift left to move the "ILOS"
+ * bit from the EEPROM (bit 4) to the "ILOS" (bit 7) field
+ * in the CTRL register 
+ */
+#define ILOS_SHIFT  3
+
+#define RECEIVE_BUFFER_ALIGN_SIZE  (256)
+
+/* The number of milliseconds we wait for auto-negotiation to complete */
+#define LINK_UP_TIMEOUT             500
+
+#define E1000_TX_BUFFER_SIZE ((uint32_t)1514)
+
+/* The carrier extension symbol, as received by the NIC. */
+#define CARRIER_EXTENSION   0x0F
+
+/* TBI_ACCEPT macro definition:
+ *
+ * This macro requires:
+ *      adapter = a pointer to struct e1000_hw 
+ *      status = the 8 bit status field of the RX descriptor with EOP set
+ *      error = the 8 bit error field of the RX descriptor with EOP set
+ *      length = the sum of all the length fields of the RX descriptors that
+ *               make up the current frame
+ *      last_byte = the last byte of the frame DMAed by the hardware
+ *      max_frame_length = the maximum frame length we want to accept.
+ *      min_frame_length = the minimum frame length we want to accept.
+ *
+ * This macro is a conditional that should be used in the interrupt 
+ * handler's Rx processing routine when RxErrors have been detected.
+ *
+ * Typical use:
+ *  ...
+ *  if (TBI_ACCEPT) {
+ *      accept_frame = TRUE;
+ *      e1000_tbi_adjust_stats(adapter, MacAddress);
+ *      frame_length--;
+ *  } else {
+ *      accept_frame = FALSE;
+ *  }
+ *  ...
+ */
+
+#define TBI_ACCEPT(adapter, status, errors, length, last_byte) \
+    ((adapter)->tbi_compatibility_on && \
+     (((errors) & E1000_RXD_ERR_FRAME_ERR_MASK) == E1000_RXD_ERR_CE) && \
+     ((last_byte) == CARRIER_EXTENSION) && \
+     (((status) & E1000_RXD_STAT_VP) ? \
+          (((length) > ((adapter)->min_frame_size - VLAN_TAG_SIZE)) && \
+           ((length) <= ((adapter)->max_frame_size + 1))) : \
+          (((length) > (adapter)->min_frame_size) && \
+           ((length) <= ((adapter)->max_frame_size + VLAN_TAG_SIZE + 1)))))
+
+/* Structures, enums, and macros for the PHY */
+
+/* Bit definitions for the Management Data IO (MDIO) and Management Data
+ * Clock (MDC) pins in the Device Control Register.
+ */
+#define E1000_CTRL_PHY_RESET_DIR  E1000_CTRL_SWDPIO0
+#define E1000_CTRL_PHY_RESET      E1000_CTRL_SWDPIN0
+#define E1000_CTRL_MDIO_DIR       E1000_CTRL_SWDPIO2
+#define E1000_CTRL_MDIO           E1000_CTRL_SWDPIN2
+#define E1000_CTRL_MDC_DIR        E1000_CTRL_SWDPIO3
+#define E1000_CTRL_MDC            E1000_CTRL_SWDPIN3
+#define E1000_CTRL_PHY_RESET_DIR4 E1000_CTRL_EXT_SDP4_DIR
+#define E1000_CTRL_PHY_RESET4     E1000_CTRL_EXT_SDP4_DATA
+
+/* PHY 1000 MII Register/Bit Definitions */
+/* PHY Registers defined by IEEE */
+#define PHY_CTRL         0x00	/* Control Register */
+#define PHY_STATUS       0x01	/* Status Regiser */
+#define PHY_ID1          0x02	/* Phy Id Reg (word 1) */
+#define PHY_ID2          0x03	/* Phy Id Reg (word 2) */
+#define PHY_AUTONEG_ADV  0x04	/* Autoneg Advertisement */
+#define PHY_LP_ABILITY   0x05	/* Link Partner Ability (Base Page) */
+#define PHY_AUTONEG_EXP  0x06	/* Autoneg Expansion Reg */
+#define PHY_NEXT_PAGE_TX 0x07	/* Next Page TX */
+#define PHY_LP_NEXT_PAGE 0x08	/* Link Partner Next Page */
+#define PHY_1000T_CTRL   0x09	/* 1000Base-T Control Reg */
+#define PHY_1000T_STATUS 0x0A	/* 1000Base-T Status Reg */
+#define PHY_EXT_STATUS   0x0F	/* Extended Status Reg */
+
+/* M88E1000 Specific Registers */
+#define M88E1000_PHY_SPEC_CTRL     0x10	/* PHY Specific Control Register */
+#define M88E1000_PHY_SPEC_STATUS   0x11	/* PHY Specific Status Register */
+#define M88E1000_INT_ENABLE        0x12	/* Interrupt Enable Register */
+#define M88E1000_INT_STATUS        0x13	/* Interrupt Status Register */
+#define M88E1000_EXT_PHY_SPEC_CTRL 0x14	/* Extended PHY Specific Control */
+#define M88E1000_RX_ERR_CNTR       0x15	/* Receive Error Counter */
+
+#define MAX_PHY_REG_ADDRESS 0x1F	/* 5 bit address bus (0-0x1F) */
+
+/* PHY Control Register */
+#define MII_CR_SPEED_SELECT_MSB 0x0040	/* bits 6,13: 10=1000, 01=100, 00=10 */
+#define MII_CR_COLL_TEST_ENABLE 0x0080	/* Collision test enable */
+#define MII_CR_FULL_DUPLEX      0x0100	/* FDX =1, half duplex =0 */
+#define MII_CR_RESTART_AUTO_NEG 0x0200	/* Restart auto negotiation */
+#define MII_CR_ISOLATE          0x0400	/* Isolate PHY from MII */
+#define MII_CR_POWER_DOWN       0x0800	/* Power down */
+#define MII_CR_AUTO_NEG_EN      0x1000	/* Auto Neg Enable */
+#define MII_CR_SPEED_SELECT_LSB 0x2000	/* bits 6,13: 10=1000, 01=100, 00=10 */
+#define MII_CR_LOOPBACK         0x4000	/* 0 = normal, 1 = loopback */
+#define MII_CR_RESET            0x8000	/* 0 = normal, 1 = PHY reset */
+
+/* PHY Status Register */
+#define MII_SR_EXTENDED_CAPS     0x0001	/* Extended register capabilities */
+#define MII_SR_JABBER_DETECT     0x0002	/* Jabber Detected */
+#define MII_SR_LINK_STATUS       0x0004	/* Link Status 1 = link */
+#define MII_SR_AUTONEG_CAPS      0x0008	/* Auto Neg Capable */
+#define MII_SR_REMOTE_FAULT      0x0010	/* Remote Fault Detect */
+#define MII_SR_AUTONEG_COMPLETE  0x0020	/* Auto Neg Complete */
+#define MII_SR_PREAMBLE_SUPPRESS 0x0040	/* Preamble may be suppressed */
+#define MII_SR_EXTENDED_STATUS   0x0100	/* Ext. status info in Reg 0x0F */
+#define MII_SR_100T2_HD_CAPS     0x0200	/* 100T2 Half Duplex Capable */
+#define MII_SR_100T2_FD_CAPS     0x0400	/* 100T2 Full Duplex Capable */
+#define MII_SR_10T_HD_CAPS       0x0800	/* 10T   Half Duplex Capable */
+#define MII_SR_10T_FD_CAPS       0x1000	/* 10T   Full Duplex Capable */
+#define MII_SR_100X_HD_CAPS      0x2000	/* 100X  Half Duplex Capable */
+#define MII_SR_100X_FD_CAPS      0x4000	/* 100X  Full Duplex Capable */
+#define MII_SR_100T4_CAPS        0x8000	/* 100T4 Capable */
+
+/* Autoneg Advertisement Register */
+#define NWAY_AR_SELECTOR_FIELD 0x0001	/* indicates IEEE 802.3 CSMA/CD */
+#define NWAY_AR_10T_HD_CAPS    0x0020	/* 10T   Half Duplex Capable */
+#define NWAY_AR_10T_FD_CAPS    0x0040	/* 10T   Full Duplex Capable */
+#define NWAY_AR_100TX_HD_CAPS  0x0080	/* 100TX Half Duplex Capable */
+#define NWAY_AR_100TX_FD_CAPS  0x0100	/* 100TX Full Duplex Capable */
+#define NWAY_AR_100T4_CAPS     0x0200	/* 100T4 Capable */
+#define NWAY_AR_PAUSE          0x0400	/* Pause operation desired */
+#define NWAY_AR_ASM_DIR        0x0800	/* Asymmetric Pause Direction bit */
+#define NWAY_AR_REMOTE_FAULT   0x2000	/* Remote Fault detected */
+#define NWAY_AR_NEXT_PAGE      0x8000	/* Next Page ability supported */
+
+/* Link Partner Ability Register (Base Page) */
+#define NWAY_LPAR_SELECTOR_FIELD 0x0000	/* LP protocol selector field */
+#define NWAY_LPAR_10T_HD_CAPS    0x0020	/* LP is 10T   Half Duplex Capable */
+#define NWAY_LPAR_10T_FD_CAPS    0x0040	/* LP is 10T   Full Duplex Capable */
+#define NWAY_LPAR_100TX_HD_CAPS  0x0080	/* LP is 100TX Half Duplex Capable */
+#define NWAY_LPAR_100TX_FD_CAPS  0x0100	/* LP is 100TX Full Duplex Capable */
+#define NWAY_LPAR_100T4_CAPS     0x0200	/* LP is 100T4 Capable */
+#define NWAY_LPAR_PAUSE          0x0400	/* LP Pause operation desired */
+#define NWAY_LPAR_ASM_DIR        0x0800	/* LP Asymmetric Pause Direction bit */
+#define NWAY_LPAR_REMOTE_FAULT   0x2000	/* LP has detected Remote Fault */
+#define NWAY_LPAR_ACKNOWLEDGE    0x4000	/* LP has rx'd link code word */
+#define NWAY_LPAR_NEXT_PAGE      0x8000	/* Next Page ability supported */
+
+/* Autoneg Expansion Register */
+#define NWAY_ER_LP_NWAY_CAPS      0x0001	/* LP has Auto Neg Capability */
+#define NWAY_ER_PAGE_RXD          0x0002	/* LP is 10T   Half Duplex Capable */
+#define NWAY_ER_NEXT_PAGE_CAPS    0x0004	/* LP is 10T   Full Duplex Capable */
+#define NWAY_ER_LP_NEXT_PAGE_CAPS 0x0008	/* LP is 100TX Half Duplex Capable */
+#define NWAY_ER_PAR_DETECT_FAULT  0x0100	/* LP is 100TX Full Duplex Capable */
+
+/* Next Page TX Register */
+#define NPTX_MSG_CODE_FIELD 0x0001	/* NP msg code or unformatted data */
+#define NPTX_TOGGLE         0x0800	/* Toggles between exchanges
+					 * of different NP
+					 */
+#define NPTX_ACKNOWLDGE2    0x1000	/* 1 = will comply with msg
+					 * 0 = cannot comply with msg
+					 */
+#define NPTX_MSG_PAGE       0x2000	/* formatted(1)/unformatted(0) pg */
+#define NPTX_NEXT_PAGE      0x8000	/* 1 = addition NP will follow 
+					 * 0 = sending last NP
+					 */
+
+/* Link Partner Next Page Register */
+#define LP_RNPR_MSG_CODE_FIELD 0x0001	/* NP msg code or unformatted data */
+#define LP_RNPR_TOGGLE         0x0800	/* Toggles between exchanges
+					 * of different NP
+					 */
+#define LP_RNPR_ACKNOWLDGE2    0x1000	/* 1 = will comply with msg 
+					 * 0 = cannot comply with msg
+					 */
+#define LP_RNPR_MSG_PAGE       0x2000	/* formatted(1)/unformatted(0) pg */
+#define LP_RNPR_ACKNOWLDGE     0x4000	/* 1 = ACK / 0 = NO ACK */
+#define LP_RNPR_NEXT_PAGE      0x8000	/* 1 = addition NP will follow
+					 * 0 = sending last NP 
+					 */
+
+/* 1000BASE-T Control Register */
+#define CR_1000T_ASYM_PAUSE      0x0080	/* Advertise asymmetric pause bit */
+#define CR_1000T_HD_CAPS         0x0100	/* Advertise 1000T HD capability */
+#define CR_1000T_FD_CAPS         0x0200	/* Advertise 1000T FD capability  */
+#define CR_1000T_REPEATER_DTE    0x0400	/* 1=Repeater/switch device port */
+					/* 0=DTE device */
+#define CR_1000T_MS_VALUE        0x0800	/* 1=Configure PHY as Master */
+					/* 0=Configure PHY as Slave */
+#define CR_1000T_MS_ENABLE       0x1000	/* 1=Master/Slave manual config value */
+					/* 0=Automatic Master/Slave config */
+#define CR_1000T_TEST_MODE_NORMAL 0x0000	/* Normal Operation */
+#define CR_1000T_TEST_MODE_1     0x2000	/* Transmit Waveform test */
+#define CR_1000T_TEST_MODE_2     0x4000	/* Master Transmit Jitter test */
+#define CR_1000T_TEST_MODE_3     0x6000	/* Slave Transmit Jitter test */
+#define CR_1000T_TEST_MODE_4     0x8000	/* Transmitter Distortion test */
+
+/* 1000BASE-T Status Register */
+#define SR_1000T_IDLE_ERROR_CNT   0x00FF	/* Num idle errors since last read */
+#define SR_1000T_ASYM_PAUSE_DIR   0x0100	/* LP asymmetric pause direction bit */
+#define SR_1000T_LP_HD_CAPS       0x0400	/* LP is 1000T HD capable */
+#define SR_1000T_LP_FD_CAPS       0x0800	/* LP is 1000T FD capable */
+#define SR_1000T_REMOTE_RX_STATUS 0x1000	/* Remote receiver OK */
+#define SR_1000T_LOCAL_RX_STATUS  0x2000	/* Local receiver OK */
+#define SR_1000T_MS_CONFIG_RES    0x4000	/* 1=Local TX is Master, 0=Slave */
+#define SR_1000T_MS_CONFIG_FAULT  0x8000	/* Master/Slave config fault */
+#define SR_1000T_REMOTE_RX_STATUS_SHIFT 12
+#define SR_1000T_LOCAL_RX_STATUS_SHIFT  13
+
+/* Extended Status Register */
+#define IEEE_ESR_1000T_HD_CAPS 0x1000	/* 1000T HD capable */
+#define IEEE_ESR_1000T_FD_CAPS 0x2000	/* 1000T FD capable */
+#define IEEE_ESR_1000X_HD_CAPS 0x4000	/* 1000X HD capable */
+#define IEEE_ESR_1000X_FD_CAPS 0x8000	/* 1000X FD capable */
+
+#define PHY_TX_POLARITY_MASK   0x0100	/* register 10h bit 8 (polarity bit) */
+#define PHY_TX_NORMAL_POLARITY 0	/* register 10h bit 8 (normal polarity) */
+
+#define AUTO_POLARITY_DISABLE  0x0010	/* register 11h bit 4 */
+				      /* (0=enable, 1=disable) */
+
+/* M88E1000 PHY Specific Control Register */
+#define M88E1000_PSCR_JABBER_DISABLE    0x0001	/* 1=Jabber Function disabled */
+#define M88E1000_PSCR_POLARITY_REVERSAL 0x0002	/* 1=Polarity Reversal enabled */
+#define M88E1000_PSCR_SQE_TEST          0x0004	/* 1=SQE Test enabled */
+#define M88E1000_PSCR_CLK125_DISABLE    0x0010	/* 1=CLK125 low, 
+						 * 0=CLK125 toggling
+						 */
+#define M88E1000_PSCR_MDI_MANUAL_MODE  0x0000	/* MDI Crossover Mode bits 6:5 */
+					       /* Manual MDI configuration */
+#define M88E1000_PSCR_MDIX_MANUAL_MODE 0x0020	/* Manual MDIX configuration */
+#define M88E1000_PSCR_AUTO_X_1000T     0x0040	/* 1000BASE-T: Auto crossover,
+						 *  100BASE-TX/10BASE-T: 
+						 *  MDI Mode
+						 */
+#define M88E1000_PSCR_AUTO_X_MODE      0x0060	/* Auto crossover enabled 
+						 * all speeds. 
+						 */
+#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE 0x0080
+					/* 1=Enable Extended 10BASE-T distance
+					 * (Lower 10BASE-T RX Threshold)
+					 * 0=Normal 10BASE-T RX Threshold */
+#define M88E1000_PSCR_MII_5BIT_ENABLE      0x0100
+					/* 1=5-Bit interface in 100BASE-TX
+					 * 0=MII interface in 100BASE-TX */
+#define M88E1000_PSCR_SCRAMBLER_DISABLE    0x0200	/* 1=Scrambler disable */
+#define M88E1000_PSCR_FORCE_LINK_GOOD      0x0400	/* 1=Force link good */
+#define M88E1000_PSCR_ASSERT_CRS_ON_TX     0x0800	/* 1=Assert CRS on Transmit */
+
+#define M88E1000_PSCR_POLARITY_REVERSAL_SHIFT    1
+#define M88E1000_PSCR_AUTO_X_MODE_SHIFT          5
+#define M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT 7
+
+/* M88E1000 PHY Specific Status Register */
+#define M88E1000_PSSR_JABBER             0x0001	/* 1=Jabber */
+#define M88E1000_PSSR_REV_POLARITY       0x0002	/* 1=Polarity reversed */
+#define M88E1000_PSSR_MDIX               0x0040	/* 1=MDIX; 0=MDI */
+#define M88E1000_PSSR_CABLE_LENGTH       0x0380	/* 0=<50M;1=50-80M;2=80-110M;
+						   * 3=110-140M;4=>140M */
+#define M88E1000_PSSR_LINK               0x0400	/* 1=Link up, 0=Link down */
+#define M88E1000_PSSR_SPD_DPLX_RESOLVED  0x0800	/* 1=Speed & Duplex resolved */
+#define M88E1000_PSSR_PAGE_RCVD          0x1000	/* 1=Page received */
+#define M88E1000_PSSR_DPLX               0x2000	/* 1=Duplex 0=Half Duplex */
+#define M88E1000_PSSR_SPEED              0xC000	/* Speed, bits 14:15 */
+#define M88E1000_PSSR_10MBS              0x0000	/* 00=10Mbs */
+#define M88E1000_PSSR_100MBS             0x4000	/* 01=100Mbs */
+#define M88E1000_PSSR_1000MBS            0x8000	/* 10=1000Mbs */
+
+#define M88E1000_PSSR_REV_POLARITY_SHIFT 1
+#define M88E1000_PSSR_MDIX_SHIFT         6
+#define M88E1000_PSSR_CABLE_LENGTH_SHIFT 7
+
+/* M88E1000 Extended PHY Specific Control Register */
+#define M88E1000_EPSCR_FIBER_LOOPBACK 0x4000	/* 1=Fiber loopback */
+#define M88E1000_EPSCR_DOWN_NO_IDLE   0x8000	/* 1=Lost lock detect enabled.
+						 * Will assert lost lock and bring
+						 * link down if idle not seen
+						 * within 1ms in 1000BASE-T 
+						 */
+/* Number of times we will attempt to autonegotiate before downshifting if we
+ * are the master */
+#define M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK 0x0C00
+#define M88E1000_EPSCR_MASTER_DOWNSHIFT_1X   0x0000
+#define M88E1000_EPSCR_MASTER_DOWNSHIFT_2X   0x0400
+#define M88E1000_EPSCR_MASTER_DOWNSHIFT_3X   0x0800
+#define M88E1000_EPSCR_MASTER_DOWNSHIFT_4X   0x0C00
+/* Number of times we will attempt to autonegotiate before downshifting if we
+ * are the slave */
+#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK  0x0300
+#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_DIS   0x0000
+#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X    0x0100
+#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_2X    0x0200
+#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_3X    0x0300
+#define M88E1000_EPSCR_TX_CLK_2_5     0x0060	/* 2.5 MHz TX_CLK */
+#define M88E1000_EPSCR_TX_CLK_25      0x0070	/* 25  MHz TX_CLK */
+#define M88E1000_EPSCR_TX_CLK_0       0x0000	/* NO  TX_CLK */
+
+/* Bit definitions for valid PHY IDs. */
+#define M88E1000_E_PHY_ID  0x01410C50
+#define M88E1000_I_PHY_ID  0x01410C30
+#define M88E1011_I_PHY_ID  0x01410C20
+#define M88E1000_12_PHY_ID M88E1000_E_PHY_ID
+#define M88E1000_14_PHY_ID M88E1000_E_PHY_ID
+
+/* Miscellaneous PHY bit definitions. */
+#define PHY_PREAMBLE        0xFFFFFFFF
+#define PHY_SOF             0x01
+#define PHY_OP_READ         0x02
+#define PHY_OP_WRITE        0x01
+#define PHY_TURNAROUND      0x02
+#define PHY_PREAMBLE_SIZE   32
+#define MII_CR_SPEED_1000   0x0040
+#define MII_CR_SPEED_100    0x2000
+#define MII_CR_SPEED_10     0x0000
+#define E1000_PHY_ADDRESS   0x01
+#define PHY_AUTO_NEG_TIME   45	/* 4.5 Seconds */
+#define PHY_FORCE_TIME      20	/* 2.0 Seconds */
+#define PHY_REVISION_MASK   0xFFFFFFF0
+#define DEVICE_SPEED_MASK   0x00000300	/* Device Ctrl Reg Speed Mask */
+#define REG4_SPEED_MASK     0x01E0
+#define REG9_SPEED_MASK     0x0300
+#define ADVERTISE_10_HALF   0x0001
+#define ADVERTISE_10_FULL   0x0002
+#define ADVERTISE_100_HALF  0x0004
+#define ADVERTISE_100_FULL  0x0008
+#define ADVERTISE_1000_HALF 0x0010
+#define ADVERTISE_1000_FULL 0x0020
+#define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x002F	/* Everything but 1000-Half */
+
+#endif				/* _E1000_HW_H_ */