/*******************************************************************************
  
  
    Copyright(c) 1999 - 2002 Intel Corporation. All rights reserved.
    Copyright 2011 Freescale Semiconductor, Inc.
  
   * SPDX-License-Identifier:	GPL-2.0+
  
    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 <linux/list.h>
  #include <malloc.h>
  #include <net.h>
  #include <netdev.h>
  #include <asm/io.h>
  #include <pci.h>
  
  #ifdef CONFIG_E1000_SPI
  #include <spi.h>
  #endif
  
  #define E1000_ERR(NIC, fmt, args...) \
  	printf("e1000: %s: ERROR: " fmt, (NIC)->name ,##args)
  
  #ifdef E1000_DEBUG
  #define E1000_DBG(NIC, fmt, args...) \
  	printf("e1000: %s: DEBUG: " fmt, (NIC)->name ,##args)
  #define DEBUGOUT(fmt, args...)	printf(fmt ,##args)
  #define DEBUGFUNC()		printf("%s
  ", __func__);
  #else
  #define E1000_DBG(HW, args...)	do { } while (0)
  #define DEBUGFUNC()		do { } while (0)
  #define DEBUGOUT(fmt, args...)	do { } while (0)
  #endif
  
  /* I/O wrapper functions */
  #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) \
  	do { E1000_READ_REG(a, STATUS); } while (0)
  
  /* Forward declarations of structures used by the shared code */
  struct e1000_hw;
  struct e1000_hw_stats;
  
  /* Internal E1000 helper functions */
  struct e1000_hw *e1000_find_card(unsigned int cardnum);
  
  #ifndef CONFIG_E1000_NO_NVM
  int32_t e1000_acquire_eeprom(struct e1000_hw *hw);
  void e1000_standby_eeprom(struct e1000_hw *hw);
  void e1000_release_eeprom(struct e1000_hw *hw);
  void e1000_raise_ee_clk(struct e1000_hw *hw, uint32_t *eecd);
  void e1000_lower_ee_clk(struct e1000_hw *hw, uint32_t *eecd);
  #endif
  
  #ifdef CONFIG_E1000_SPI
  int do_e1000_spi(cmd_tbl_t *cmdtp, struct e1000_hw *hw,
  		int argc, char * const argv[]);
  #endif
  
  /* 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_82545_rev_3,
  	e1000_82546,
  	e1000_82546_rev_3,
  	e1000_82541,
  	e1000_82541_rev_2,
  	e1000_82547,
  	e1000_82547_rev_2,
  	e1000_82571,
  	e1000_82572,
  	e1000_82573,
  	e1000_82574,
  	e1000_80003es2lan,
  	e1000_ich8lan,
  	e1000_igb,
  	e1000_num_macs
  } e1000_mac_type;
  
  /* Media Types */
  typedef enum {
  	e1000_media_type_copper = 0,
  	e1000_media_type_fiber = 1,
  	e1000_media_type_internal_serdes = 2,
  	e1000_num_media_types
  } e1000_media_type;
  
  typedef enum {
  	e1000_eeprom_uninitialized = 0,
  	e1000_eeprom_spi,
  	e1000_eeprom_microwire,
  	e1000_eeprom_flash,
  	e1000_eeprom_ich8,
  	e1000_eeprom_none, /* No NVM support */
  	e1000_eeprom_invm,
  	e1000_num_eeprom_types
  } e1000_eeprom_type;
  
  typedef enum {
  	e1000_10_half = 0,
  	e1000_10_full = 1,
  	e1000_100_half = 2,
  	e1000_100_full = 3
  } e1000_speed_duplex_type;
  
  /* 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_express,
  	e1000_bus_type_reserved
  } 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;
  
  typedef enum {
  	e1000_phy_m88 = 0,
  	e1000_phy_igp,
  	e1000_phy_igp_2,
  	e1000_phy_gg82563,
  	e1000_phy_igp_3,
  	e1000_phy_ife,
  	e1000_phy_igb,
  	e1000_phy_bm,
  	e1000_phy_undefined = 0xFF
  } e1000_phy_type;
  
  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_PHY_TYPE			6
  #define E1000_ERR_NOLINK			7
  #define E1000_ERR_TIMEOUT			8
  #define E1000_ERR_RESET				9
  #define E1000_ERR_MASTER_REQUESTS_PENDING	10
  #define E1000_ERR_HOST_INTERFACE_COMMAND	11
  #define E1000_BLK_PHY_RESET			12
  #define E1000_ERR_SWFW_SYNC 			13
  
  /* 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_82540EP_LOM         0x1016
  #define E1000_DEV_ID_82540EP             0x1017
  #define E1000_DEV_ID_82540EP_LP          0x101E
  #define E1000_DEV_ID_82545EM_COPPER      0x100F
  #define E1000_DEV_ID_82545EM_FIBER       0x1011
  #define E1000_DEV_ID_82545GM_COPPER      0x1026
  #define E1000_DEV_ID_82545GM_FIBER       0x1027
  #define E1000_DEV_ID_82545GM_SERDES      0x1028
  #define E1000_DEV_ID_82546EB_COPPER      0x1010
  #define E1000_DEV_ID_82546EB_FIBER       0x1012
  #define E1000_DEV_ID_82546EB_QUAD_COPPER 0x101D
  #define E1000_DEV_ID_82541EI             0x1013
  #define E1000_DEV_ID_82541EI_MOBILE      0x1018
  #define E1000_DEV_ID_82541ER_LOM         0x1014
  #define E1000_DEV_ID_82541ER             0x1078
  #define E1000_DEV_ID_82547GI             0x1075
  #define E1000_DEV_ID_82541GI             0x1076
  #define E1000_DEV_ID_82541GI_MOBILE      0x1077
  #define E1000_DEV_ID_82541GI_LF          0x107C
  #define E1000_DEV_ID_82546GB_COPPER      0x1079
  #define E1000_DEV_ID_82546GB_FIBER       0x107A
  #define E1000_DEV_ID_82546GB_SERDES      0x107B
  #define E1000_DEV_ID_82546GB_PCIE        0x108A
  #define E1000_DEV_ID_82546GB_QUAD_COPPER 0x1099
  #define E1000_DEV_ID_82547EI             0x1019
  #define E1000_DEV_ID_82547EI_MOBILE      0x101A
  #define E1000_DEV_ID_82571EB_COPPER      0x105E
  #define E1000_DEV_ID_82571EB_FIBER       0x105F
  #define E1000_DEV_ID_82571EB_SERDES      0x1060
  #define E1000_DEV_ID_82571EB_QUAD_COPPER 0x10A4
  #define E1000_DEV_ID_82571PT_QUAD_COPPER 0x10D5
  #define E1000_DEV_ID_82571EB_QUAD_FIBER  0x10A5
  #define E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE  0x10BC
  #define E1000_DEV_ID_82571EB_SERDES_DUAL 0x10D9
  #define E1000_DEV_ID_82571EB_SERDES_QUAD 0x10DA
  #define E1000_DEV_ID_82572EI_COPPER      0x107D
  #define E1000_DEV_ID_82572EI_FIBER       0x107E
  #define E1000_DEV_ID_82572EI_SERDES      0x107F
  #define E1000_DEV_ID_82572EI             0x10B9
  #define E1000_DEV_ID_82573E              0x108B
  #define E1000_DEV_ID_82573E_IAMT         0x108C
  #define E1000_DEV_ID_82573L              0x109A
  #define E1000_DEV_ID_82574L              0x10D3
  #define E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3 0x10B5
  #define E1000_DEV_ID_80003ES2LAN_COPPER_DPT     0x1096
  #define E1000_DEV_ID_80003ES2LAN_SERDES_DPT     0x1098
  #define E1000_DEV_ID_80003ES2LAN_COPPER_SPT     0x10BA
  #define E1000_DEV_ID_80003ES2LAN_SERDES_SPT     0x10BB
  
  #define E1000_DEV_ID_ICH8_IGP_M_AMT      0x1049
  #define E1000_DEV_ID_ICH8_IGP_AMT        0x104A
  #define E1000_DEV_ID_ICH8_IGP_C          0x104B
  #define E1000_DEV_ID_ICH8_IFE            0x104C
  #define E1000_DEV_ID_ICH8_IFE_GT         0x10C4
  #define E1000_DEV_ID_ICH8_IFE_G          0x10C5
  #define E1000_DEV_ID_ICH8_IGP_M          0x104D
  
  #define IGP03E1000_E_PHY_ID  0x02A80390
  #define IFE_E_PHY_ID         0x02A80330 /* 10/100 PHY */
  #define IFE_PLUS_E_PHY_ID    0x02A80320
  #define IFE_C_E_PHY_ID       0x02A80310
  
  #define IFE_PHY_EXTENDED_STATUS_CONTROL   0x10  /* 100BaseTx Extended Status,
  						   Control and Address */
  #define IFE_PHY_SPECIAL_CONTROL           0x11  /* 100BaseTx PHY special
  						   control register */
  #define IFE_PHY_RCV_FALSE_CARRIER         0x13  /* 100BaseTx Receive false
  						   Carrier Counter */
  #define IFE_PHY_RCV_DISCONNECT            0x14  /* 100BaseTx Receive Disconnet
  						   Counter */
  #define IFE_PHY_RCV_ERROT_FRAME           0x15  /* 100BaseTx Receive Error
  						   Frame Counter */
  #define IFE_PHY_RCV_SYMBOL_ERR            0x16  /* Receive Symbol Error
  						   Counter */
  #define IFE_PHY_PREM_EOF_ERR              0x17  /* 100BaseTx Receive
  						   Premature End Of Frame
  						   Error Counter */
  #define IFE_PHY_RCV_EOF_ERR               0x18  /* 10BaseT Receive End Of
  						   Frame Error Counter */
  #define IFE_PHY_TX_JABBER_DETECT          0x19  /* 10BaseT Transmit Jabber
  						   Detect Counter */
  #define IFE_PHY_EQUALIZER                 0x1A  /* PHY Equalizer Control and
  						   Status */
  #define IFE_PHY_SPECIAL_CONTROL_LED       0x1B  /* PHY special control and
  						   LED configuration */
  #define IFE_PHY_MDIX_CONTROL              0x1C  /* MDI/MDI-X Control register */
  #define IFE_PHY_HWI_CONTROL               0x1D  /* Hardware Integrity Control
  						   (HWI) */
  
  #define IFE_PESC_REDUCED_POWER_DOWN_DISABLE  0x2000  /* Defaut 1 = Disable auto
  							reduced power down */
  #define IFE_PESC_100BTX_POWER_DOWN           0x0400  /* Indicates the power
  							state of 100BASE-TX */
  #define IFE_PESC_10BTX_POWER_DOWN            0x0200  /* Indicates the power
  							state of 10BASE-T */
  #define IFE_PESC_POLARITY_REVERSED           0x0100  /* Indicates 10BASE-T
  							polarity */
  #define IFE_PESC_PHY_ADDR_MASK               0x007C  /* Bit 6:2 for sampled PHY
  							address */
  #define IFE_PESC_SPEED                       0x0002  /* Auto-negotiation speed
  						result 1=100Mbs, 0=10Mbs */
  #define IFE_PESC_DUPLEX                      0x0001  /* Auto-negotiation
  						duplex result 1=Full, 0=Half */
  #define IFE_PESC_POLARITY_REVERSED_SHIFT     8
  
  #define IFE_PSC_DISABLE_DYNAMIC_POWER_DOWN   0x0100  /* 1 = Dyanmic Power Down
  							disabled */
  #define IFE_PSC_FORCE_POLARITY               0x0020  /* 1=Reversed Polarity,
  							0=Normal */
  #define IFE_PSC_AUTO_POLARITY_DISABLE        0x0010  /* 1=Auto Polarity
  							Disabled, 0=Enabled */
  #define IFE_PSC_JABBER_FUNC_DISABLE          0x0001  /* 1=Jabber Disabled,
  						0=Normal Jabber Operation */
  #define IFE_PSC_FORCE_POLARITY_SHIFT         5
  #define IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT  4
  
  #define IFE_PMC_AUTO_MDIX                    0x0080  /* 1=enable MDI/MDI-X
  						feature, default 0=disabled */
  #define IFE_PMC_FORCE_MDIX                   0x0040  /* 1=force MDIX-X,
  							0=force MDI */
  #define IFE_PMC_MDIX_STATUS                  0x0020  /* 1=MDI-X, 0=MDI */
  #define IFE_PMC_AUTO_MDIX_COMPLETE           0x0010  /* Resolution algorithm
  							is completed */
  #define IFE_PMC_MDIX_MODE_SHIFT              6
  #define IFE_PHC_MDIX_RESET_ALL_MASK          0x0000  /* Disable auto MDI-X */
  
  #define IFE_PHC_HWI_ENABLE                   0x8000  /* Enable the HWI
  							feature */
  #define IFE_PHC_ABILITY_CHECK                0x4000  /* 1= Test Passed,
  							0=failed */
  #define IFE_PHC_TEST_EXEC                    0x2000  /* PHY launch test pulses
  							on the wire */
  #define IFE_PHC_HIGHZ                        0x0200  /* 1 = Open Circuit */
  #define IFE_PHC_LOWZ                         0x0400  /* 1 = Short Circuit */
  #define IFE_PHC_LOW_HIGH_Z_MASK              0x0600  /* Mask for indication
  						type of problem on the line */
  #define IFE_PHC_DISTANCE_MASK                0x01FF  /* Mask for distance to
  				the cable problem, in 80cm granularity */
  #define IFE_PHC_RESET_ALL_MASK               0x0000  /* Disable HWI */
  #define IFE_PSCL_PROBE_MODE                  0x0020  /* LED Probe mode */
  #define IFE_PSCL_PROBE_LEDS_OFF              0x0006  /* Force LEDs 0 and 2
  							off */
  #define IFE_PSCL_PROBE_LEDS_ON               0x0007  /* Force LEDs 0 and 2 on */
  
  
  #define NUM_DEV_IDS 16
  
  #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 E1000_REVISION_0       0
  #define E1000_REVISION_1       1
  #define E1000_REVISION_2       2
  #define E1000_REVISION_3       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 MAXIMUM_ETHERNET_PACKET_SIZE \
  	(MAXIMUM_ETHERNET_FRAME_SIZE - ETH_FCS_LEN)
  #define MINIMUM_ETHERNET_PACKET_SIZE \
  	(MINIMUM_ETHERNET_FRAME_SIZE - ETH_FCS_LEN)
  #define CRC_LENGTH		     ETH_FCS_LEN
  #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_I210_EECD     0x12010	/* EEPROM/Flash Control - RW */
  #define E1000_EERD     0x00014	/* EEPROM Read - RW */
  #define E1000_I210_EERD     0x12014	/* 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_I210_IAM      0x000E0	/* Interrupt Ack Auto Mask - RW */
  #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_TCTL_EXT 0x00404  /* Extended 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_EXTCNF_CTRL  0x00F00  /* Extended Configuration Control */
  #define E1000_EXTCNF_SIZE  0x00F08  /* Extended Configuration Size */
  #define E1000_PHY_CTRL     0x00F10  /* PHY Control Register in CSR */
  #define E1000_I210_PHY_CTRL     0x00E14  /* PHY Control Register in CSR */
  #define FEXTNVM_SW_CONFIG  0x0001
  #define E1000_PBA      0x01000	/* Packet Buffer Allocation - RW */
  #define E1000_PBS      0x01008  /* Packet Buffer Size */
  #define E1000_EEMNGCTL 0x01010  /* MNG EEprom Control */
  #define E1000_I210_EEMNGCTL 0x12030  /* MNG EEprom Control */
  #define E1000_FLASH_UPDATES 1000
  #define E1000_EEARBC   0x01024  /* EEPROM Auto Read Bus Control */
  #define E1000_FLASHT   0x01028  /* FLASH Timer Register */
  #define E1000_EEWR     0x0102C  /* EEPROM Write Register - RW */
  #define E1000_I210_EEWR     0x12018  /* EEPROM Write Register - RW */
  #define E1000_FLSWCTL  0x01030  /* FLASH control register */
  #define E1000_FLSWDATA 0x01034  /* FLASH data register */
  #define E1000_FLSWCNT  0x01038  /* FLASH Access Counter */
  #define E1000_FLOP     0x0103C  /* FLASH Opcode Register */
  #define E1000_ERT      0x02008  /* Early Rx Threshold - 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_TDFH     0x03410  /* TX Data FIFO Head - RW */
  #define E1000_TDFT     0x03418  /* TX Data FIFO Tail - RW */
  #define E1000_TDFHS    0x03420  /* TX Data FIFO Head Saved - RW */
  #define E1000_TDFTS    0x03428  /* TX Data FIFO Tail Saved - RW */
  #define E1000_TDFPC    0x03430  /* TX Data FIFO Packet Count - 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_TARC0    0x03840  /* TX Arbitration Count (0) */
  #define E1000_TDBAL1   0x03900  /* TX Desc Base Address Low (1) - RW */
  #define E1000_TDBAH1   0x03904  /* TX Desc Base Address High (1) - RW */
  #define E1000_TDLEN1   0x03908  /* TX Desc Length (1) - RW */
  #define E1000_TDH1     0x03910  /* TX Desc Head (1) - RW */
  #define E1000_TDT1     0x03918  /* TX Desc Tail (1) - RW */
  #define E1000_TXDCTL1  0x03928  /* TX Descriptor Control (1) - RW */
  #define E1000_TARC1    0x03940  /* TX Arbitration Count (1) */
  #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;
  };
  
  #ifndef CONFIG_E1000_NO_NVM
  struct e1000_eeprom_info {
  e1000_eeprom_type type;
  	uint16_t word_size;
  	uint16_t opcode_bits;
  	uint16_t address_bits;
  	uint16_t delay_usec;
  	uint16_t page_size;
  	bool use_eerd;
  	bool use_eewr;
  };
  #endif
  
  typedef enum {
      e1000_smart_speed_default = 0,
      e1000_smart_speed_on,
      e1000_smart_speed_off
  } e1000_smart_speed;
  
  typedef enum {
      e1000_dsp_config_disabled = 0,
      e1000_dsp_config_enabled,
      e1000_dsp_config_activated,
      e1000_dsp_config_undefined = 0xFF
  } e1000_dsp_config;
  
  typedef enum {
      e1000_ms_hw_default = 0,
      e1000_ms_force_master,
      e1000_ms_force_slave,
      e1000_ms_auto
  } e1000_ms_type;
  
  typedef enum {
      e1000_ffe_config_enabled = 0,
      e1000_ffe_config_active,
      e1000_ffe_config_blocked
  } e1000_ffe_config;
  
  
  /* Structure containing variables used by the shared code (e1000_hw.c) */
  struct e1000_hw {
  	struct list_head list_node;
  	struct eth_device *nic;
  #ifdef CONFIG_E1000_SPI
  	struct spi_slave spi;
  #endif
  	unsigned int cardnum;
  
  	pci_dev_t pdev;
  	uint8_t *hw_addr;
  	e1000_mac_type mac_type;
  	e1000_phy_type phy_type;
  	uint32_t phy_init_script;
  	uint32_t txd_cmd;
  	e1000_media_type media_type;
  	e1000_fc_type fc;
  	e1000_bus_type bus_type;
  #if 0
  	e1000_bus_speed bus_speed;
  	e1000_bus_width bus_width;
  	uint32_t io_base;
  #endif
  	uint32_t		asf_firmware_present;
  #ifndef CONFIG_E1000_NO_NVM
  	uint32_t		eeprom_semaphore_present;
  #endif
  	uint32_t		swfw_sync_present;
  	uint32_t		swfwhw_semaphore_present;
  #ifndef CONFIG_E1000_NO_NVM
  	struct e1000_eeprom_info eeprom;
  #endif
  	e1000_ms_type		master_slave;
  	e1000_ms_type		original_master_slave;
  	e1000_ffe_config	ffe_config_state;
  	uint32_t phy_id;
  	uint32_t phy_revision;
  	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;
  	uint8_t autoneg;
  	uint8_t mdix;
  	uint8_t forced_speed_duplex;
  	uint8_t wait_autoneg_complete;
  	uint8_t dma_fairness;
  #if 0
  	uint8_t perm_mac_addr[NODE_ADDRESS_SIZE];
  #endif
  	bool disable_polarity_correction;
  	bool		speed_downgraded;
  	bool get_link_status;
  	bool tbi_compatibility_en;
  	bool tbi_compatibility_on;
  	bool		fc_strict_ieee;
  	bool fc_send_xon;
  	bool report_tx_early;
  	bool phy_reset_disable;
  	bool		initialize_hw_bits_disable;
  #if 0
  	bool adaptive_ifs;
  	bool ifs_params_forced;
  	bool in_ifs_mode;
  #endif
  	e1000_smart_speed	smart_speed;
  	e1000_dsp_config	dsp_config_state;
  };
  
  #define E1000_EEPROM_SWDPIN0   0x0001	/* SWDPIN 0 EEPROM Value */
  #define E1000_EEPROM_LED_LOGIC 0x0020	/* Led Logic Word */
  #define E1000_EEPROM_RW_REG_DATA   16   /* Offset to data in EEPROM
  					   read/write registers */
  #define E1000_EEPROM_RW_REG_DONE   2    /* Offset to READ/WRITE done bit */
  #define E1000_EEPROM_RW_REG_START  1    /* First bit for telling part to start
  					   operation */
  #define E1000_EEPROM_RW_ADDR_SHIFT 2    /* Shift to the address bits */
  #define E1000_EEPROM_POLL_WRITE    1    /* Flag for polling for write
  					   complete */
  #define E1000_EEPROM_POLL_READ     0    /* Flag for polling for read complete */
  #define EEPROM_RESERVED_WORD          0xFFFF
  
  /* 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 */
  #define E1000_STATUS_PF_RST_DONE 0x00200000	/* 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 */
  #define E1000_EECD_ADDR_BITS 0x00000400 /* EEPROM Addressing bits based on type
  					 * (0-small, 1-large) */
  
  #define E1000_EECD_TYPE      0x00002000 /* EEPROM Type (1-SPI, 0-Microwire) */
  #ifndef E1000_EEPROM_GRANT_ATTEMPTS
  #define E1000_EEPROM_GRANT_ATTEMPTS 1000 /* EEPROM # attempts to gain grant */
  #endif
  #define E1000_EECD_AUTO_RD          0x00000200  /* EEPROM Auto Read done */
  #define E1000_EECD_SIZE_EX_MASK     0x00007800  /* EEprom Size */
  #define E1000_EECD_SIZE_EX_SHIFT    11
  #define E1000_EECD_NVADDS    0x00018000 /* NVM Address Size */
  #define E1000_EECD_SELSHAD   0x00020000 /* Select Shadow RAM */
  #define E1000_EECD_INITSRAM  0x00040000 /* Initialize Shadow RAM */
  #define E1000_EECD_FLUPD     0x00080000 /* Update FLASH */
  #define E1000_EECD_AUPDEN    0x00100000 /* Enable Autonomous FLASH update */
  #define E1000_EECD_SHADV     0x00200000 /* Shadow RAM Data Valid */
  #define E1000_EECD_SEC1VAL   0x00400000 /* Sector One Valid */
  #define E1000_EECD_SECVAL_SHIFT      22
  #define E1000_STM_OPCODE     0xDB00
  #define E1000_HICR_FW_RESET  0xC0
  
  #define E1000_SHADOW_RAM_WORDS     2048
  #define E1000_ICH_NVM_SIG_WORD     0x13
  #define E1000_ICH_NVM_SIG_MASK     0xC0
  
  /* 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 */
  
  /* EEPROM Commands - Microwire */
  #define EEPROM_READ_OPCODE_MICROWIRE  0x6  /* EEPROM read opcode */
  #define EEPROM_WRITE_OPCODE_MICROWIRE 0x5  /* EEPROM write opcode */
  #define EEPROM_ERASE_OPCODE_MICROWIRE 0x7  /* EEPROM erase opcode */
  #define EEPROM_EWEN_OPCODE_MICROWIRE  0x13 /* EEPROM erase/write enable */
  #define EEPROM_EWDS_OPCODE_MICROWIRE  0x10 /* EEPROM erast/write disable */
  
  /* EEPROM Commands - SPI */
  #define EEPROM_MAX_RETRY_SPI        5000 /* Max wait of 5ms, for RDY signal */
  #define EEPROM_READ_OPCODE_SPI      0x03  /* EEPROM read opcode */
  #define EEPROM_WRITE_OPCODE_SPI     0x02  /* EEPROM write opcode */
  #define EEPROM_A8_OPCODE_SPI        0x08  /* opcode bit-3 = address bit-8 */
  #define EEPROM_WREN_OPCODE_SPI      0x06  /* EEPROM set Write Enable latch */
  #define EEPROM_WRDI_OPCODE_SPI      0x04  /* EEPROM reset Write Enable latch */
  #define EEPROM_RDSR_OPCODE_SPI      0x05  /* EEPROM read Status register */
  #define EEPROM_WRSR_OPCODE_SPI      0x01  /* EEPROM write Status register */
  #define EEPROM_ERASE4K_OPCODE_SPI   0x20  /* EEPROM ERASE 4KB */
  #define EEPROM_ERASE64K_OPCODE_SPI  0xD8  /* EEPROM ERASE 64KB */
  #define EEPROM_ERASE256_OPCODE_SPI  0xDB  /* EEPROM ERASE 256B */
  
  /* EEPROM Size definitions */
  #define EEPROM_WORD_SIZE_SHIFT  6
  #define EEPROM_SIZE_SHIFT       10
  #define EEPROM_SIZE_MASK        0x1C00
  
  /* EEPROM Word Offsets */
  #define EEPROM_COMPAT                 0x0003
  #define EEPROM_ID_LED_SETTINGS        0x0004
  #define EEPROM_VERSION                0x0005
  #define EEPROM_SERDES_AMPLITUDE       0x0006 /* For SERDES output amplitude
  						adjustment. */
  #define EEPROM_PHY_CLASS_WORD         0x0007
  #define EEPROM_INIT_CONTROL1_REG      0x000A
  #define EEPROM_INIT_CONTROL2_REG      0x000F
  #define EEPROM_SWDEF_PINS_CTRL_PORT_1 0x0010
  #define EEPROM_INIT_CONTROL3_PORT_B   0x0014
  #define EEPROM_INIT_3GIO_3            0x001A
  #define EEPROM_SWDEF_PINS_CTRL_PORT_0 0x0020
  #define EEPROM_INIT_CONTROL3_PORT_A   0x0024
  #define EEPROM_CFG                    0x0012
  #define EEPROM_FLASH_VERSION          0x0032
  #define EEPROM_CHECKSUM_REG           0x003F
  
  #define E1000_EEPROM_CFG_DONE         0x00040000   /* MNG config cycle done */
  #define E1000_EEPROM_CFG_DONE_PORT_1  0x00080000   /* ...for second port */
  
  /* 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_RO_DIS    0x00020000 /* Relaxed Ordering disable */
  #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
  
  #define E1000_PHY_CTRL_SPD_EN                  0x00000001
  #define E1000_PHY_CTRL_D0A_LPLU                0x00000002
  #define E1000_PHY_CTRL_NOND0A_LPLU             0x00000004
  #define E1000_PHY_CTRL_NOND0A_GBE_DISABLE      0x00000008
  #define E1000_PHY_CTRL_GBE_DISABLE             0x00000040
  #define E1000_PHY_CTRL_B2B_EN                  0x00000080
  /* 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 */
  
  /* SW_W_SYNC definitions */
  #define E1000_SWFW_EEP_SM     0x0001
  #define E1000_SWFW_PHY0_SM    0x0002
  #define E1000_SWFW_PHY1_SM    0x0004
  #define E1000_SWFW_MAC_CSR_SM 0x0008
  
  /* 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 */
  #define E1000_RXDCTL_FULL_RX_DESC_WB 0x01010000	/* GRAN=1, WTHRESH=1 */
  
  /* Transmit Descriptor Control */
  #define E1000_TXDCTL_PTHRESH 0x0000003F	/* TXDCTL Prefetch Threshold */
  #define E1000_TXDCTL_HTHRESH 0x00003F00	/* TXDCTL Host Threshold */
  #define E1000_TXDCTL_WTHRESH 0x003F0000	/* 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 */
  #define E1000_TXDCTL_COUNT_DESC 0x00400000 /* Enable the counting of desc.
  					      still to be processed. */
  
  /* 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 */
  #define E1000_TCTL_MULR   0x10000000    /* Multiple request support */
  
  /* 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 */
  
  /* 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	0xF
  #define E1000_CT_SHIFT			4
  #define E1000_COLLISION_DISTANCE        63
  #define E1000_COLLISION_DISTANCE_82542  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 DEFAULT_80003ES2LAN_TIPG_IPGR2 7
  #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_38K 0x0026
  #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 M88E1000_PHY_PAGE_SELECT   0x1D  /* Reg 29 for page number setting */
  #define M88E1000_PHY_GEN_CONTROL   0x1E  /* Its meaning depends on reg 29 */
  
  #define MAX_PHY_REG_ADDRESS		0x1F	/* 5 bit address bus (0-0x1F) */
  
  /* M88EC018 Rev 2 specific DownShift settings */
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK  0x0E00
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_1X    0x0000
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_2X    0x0200
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_3X    0x0400
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_4X    0x0600
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X    0x0800
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_6X    0x0A00
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_7X    0x0C00
  #define M88EC018_EPSCR_DOWNSHIFT_COUNTER_8X    0x0E00
  
  /* IGP01E1000 specifics */
  #define IGP01E1000_IEEE_REGS_PAGE	0x0000
  #define IGP01E1000_IEEE_RESTART_AUTONEG 0x3300
  #define IGP01E1000_IEEE_FORCE_GIGA	0x0140
  
  /* IGP01E1000 Specific Registers */
  #define IGP01E1000_PHY_PORT_CONFIG	0x10 /* PHY Specific Port Config Register */
  #define IGP01E1000_PHY_PORT_STATUS	0x11 /* PHY Specific Status Register */
  #define IGP01E1000_PHY_PORT_CTRL	0x12 /* PHY Specific Control Register */
  #define IGP01E1000_PHY_LINK_HEALTH	0x13 /* PHY Link Health Register */
  #define IGP01E1000_GMII_FIFO		0x14 /* GMII FIFO Register */
  #define IGP01E1000_PHY_CHANNEL_QUALITY	0x15 /* PHY Channel Quality Register */
  #define IGP02E1000_PHY_POWER_MGMT	0x19
  #define IGP01E1000_PHY_PAGE_SELECT	0x1F /* PHY Page Select Core Register */
  
  /* IGP01E1000 AGC Registers - stores the cable length values*/
  #define IGP01E1000_PHY_AGC_A        0x1172
  #define IGP01E1000_PHY_AGC_B        0x1272
  #define IGP01E1000_PHY_AGC_C        0x1472
  #define IGP01E1000_PHY_AGC_D        0x1872
  
  /* IGP01E1000 Specific Port Config Register - R/W */
  #define IGP01E1000_PSCFR_AUTO_MDIX_PAR_DETECT  0x0010
  #define IGP01E1000_PSCFR_PRE_EN                0x0020
  #define IGP01E1000_PSCFR_SMART_SPEED           0x0080
  #define IGP01E1000_PSCFR_DISABLE_TPLOOPBACK    0x0100
  #define IGP01E1000_PSCFR_DISABLE_JABBER        0x0400
  #define IGP01E1000_PSCFR_DISABLE_TRANSMIT      0x2000
  /* IGP02E1000 AGC Registers for cable length values */
  #define IGP02E1000_PHY_AGC_A        0x11B1
  #define IGP02E1000_PHY_AGC_B        0x12B1
  #define IGP02E1000_PHY_AGC_C        0x14B1
  #define IGP02E1000_PHY_AGC_D        0x18B1
  
  #define IGP02E1000_PM_SPD                         0x0001  /* Smart Power Down */
  #define IGP02E1000_PM_D3_LPLU                     0x0004  /* Enable LPLU in
  							     non-D0a modes */
  #define IGP02E1000_PM_D0_LPLU                     0x0002  /* Enable LPLU in
  							     D0a mode */
  
  /* IGP01E1000 DSP Reset Register */
  #define IGP01E1000_PHY_DSP_RESET   0x1F33
  #define IGP01E1000_PHY_DSP_SET     0x1F71
  #define IGP01E1000_PHY_DSP_FFE     0x1F35
  
  #define IGP01E1000_PHY_CHANNEL_NUM    4
  #define IGP02E1000_PHY_CHANNEL_NUM    4
  
  #define IGP01E1000_PHY_AGC_PARAM_A    0x1171
  #define IGP01E1000_PHY_AGC_PARAM_B    0x1271
  #define IGP01E1000_PHY_AGC_PARAM_C    0x1471
  #define IGP01E1000_PHY_AGC_PARAM_D    0x1871
  
  #define IGP01E1000_PHY_EDAC_MU_INDEX        0xC000
  #define IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS 0x8000
  
  #define IGP01E1000_PHY_ANALOG_TX_STATE      0x2890
  #define IGP01E1000_PHY_ANALOG_CLASS_A       0x2000
  #define IGP01E1000_PHY_FORCE_ANALOG_ENABLE  0x0004
  #define IGP01E1000_PHY_DSP_FFE_CM_CP        0x0069
  
  #define IGP01E1000_PHY_DSP_FFE_DEFAULT      0x002A
  /* IGP01E1000 PCS Initialization register - stores the polarity status when
   * speed = 1000 Mbps. */
  #define IGP01E1000_PHY_PCS_INIT_REG  0x00B4
  #define IGP01E1000_PHY_PCS_CTRL_REG  0x00B5
  
  #define IGP01E1000_ANALOG_REGS_PAGE  0x20C0
  
  /* IGP01E1000 GMII FIFO Register */
  #define IGP01E1000_GMII_FLEX_SPD               0x10 /* Enable flexible speed
  							* on Link-Up */
  #define IGP01E1000_GMII_SPD                    0x20 /* Enable SPD */
  
  /* IGP01E1000 Analog Register */
  #define IGP01E1000_ANALOG_SPARE_FUSE_STATUS       0x20D1
  #define IGP01E1000_ANALOG_FUSE_STATUS             0x20D0
  #define IGP01E1000_ANALOG_FUSE_CONTROL            0x20DC
  #define IGP01E1000_ANALOG_FUSE_BYPASS             0x20DE
  
  #define IGP01E1000_ANALOG_FUSE_POLY_MASK            0xF000
  #define IGP01E1000_ANALOG_FUSE_FINE_MASK            0x0F80
  #define IGP01E1000_ANALOG_FUSE_COARSE_MASK          0x0070
  #define IGP01E1000_ANALOG_SPARE_FUSE_ENABLED        0x0100
  #define IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL    0x0002
  
  #define IGP01E1000_ANALOG_FUSE_COARSE_THRESH        0x0040
  #define IGP01E1000_ANALOG_FUSE_COARSE_10            0x0010
  #define IGP01E1000_ANALOG_FUSE_FINE_1               0x0080
  #define IGP01E1000_ANALOG_FUSE_FINE_10              0x0500
  
  /* IGP01E1000 Specific Port Control Register - R/W */
  #define IGP01E1000_PSCR_TP_LOOPBACK            0x0010
  #define IGP01E1000_PSCR_CORRECT_NC_SCMBLR      0x0200
  #define IGP01E1000_PSCR_TEN_CRS_SELECT         0x0400
  #define IGP01E1000_PSCR_FLIP_CHIP              0x0800
  #define IGP01E1000_PSCR_AUTO_MDIX              0x1000
  #define IGP01E1000_PSCR_FORCE_MDI_MDIX         0x2000 /* 0-MDI, 1-MDIX */
  /* GG82563 PHY Specific Status Register (Page 0, Register 16 */
  #define GG82563_PSCR_DISABLE_JABBER             0x0001 /* 1=Disable Jabber */
  #define GG82563_PSCR_POLARITY_REVERSAL_DISABLE  0x0002 /* 1=Polarity Reversal
  							  Disabled */
  #define GG82563_PSCR_POWER_DOWN                 0x0004 /* 1=Power Down */
  #define GG82563_PSCR_COPPER_TRANSMITER_DISABLE  0x0008 /* 1=Transmitter
  							  Disabled */
  #define GG82563_PSCR_CROSSOVER_MODE_MASK        0x0060
  #define GG82563_PSCR_CROSSOVER_MODE_MDI         0x0000 /* 00=Manual MDI
  							  configuration */
  #define GG82563_PSCR_CROSSOVER_MODE_MDIX        0x0020 /* 01=Manual MDIX
  							  configuration */
  #define GG82563_PSCR_CROSSOVER_MODE_AUTO        0x0060 /* 11=Automatic
  							  crossover */
  #define GG82563_PSCR_ENALBE_EXTENDED_DISTANCE   0x0080 /* 1=Enable Extended
  							  Distance */
  #define GG82563_PSCR_ENERGY_DETECT_MASK         0x0300
  #define GG82563_PSCR_ENERGY_DETECT_OFF          0x0000 /* 00,01=Off */
  #define GG82563_PSCR_ENERGY_DETECT_RX           0x0200 /* 10=Sense on Rx only
  							  (Energy Detect) */
  #define GG82563_PSCR_ENERGY_DETECT_RX_TM        0x0300 /* 11=Sense and Tx NLP */
  #define GG82563_PSCR_FORCE_LINK_GOOD            0x0400 /* 1=Force Link Good */
  #define GG82563_PSCR_DOWNSHIFT_ENABLE           0x0800 /* 1=Enable Downshift */
  #define GG82563_PSCR_DOWNSHIFT_COUNTER_MASK     0x7000
  #define GG82563_PSCR_DOWNSHIFT_COUNTER_SHIFT    12
  
  /* PHY Specific Status Register (Page 0, Register 17) */
  #define GG82563_PSSR_JABBER                0x0001 /* 1=Jabber */
  #define GG82563_PSSR_POLARITY              0x0002 /* 1=Polarity Reversed */
  #define GG82563_PSSR_LINK                  0x0008 /* 1=Link is Up */
  #define GG82563_PSSR_ENERGY_DETECT         0x0010 /* 1=Sleep, 0=Active */
  #define GG82563_PSSR_DOWNSHIFT             0x0020 /* 1=Downshift */
  #define GG82563_PSSR_CROSSOVER_STATUS      0x0040 /* 1=MDIX, 0=MDI */
  #define GG82563_PSSR_RX_PAUSE_ENABLED      0x0100 /* 1=Receive Pause Enabled */
  #define GG82563_PSSR_TX_PAUSE_ENABLED      0x0200 /* 1=Transmit Pause Enabled */
  #define GG82563_PSSR_LINK_UP               0x0400 /* 1=Link Up */
  #define GG82563_PSSR_SPEED_DUPLEX_RESOLVED 0x0800 /* 1=Resolved */
  #define GG82563_PSSR_PAGE_RECEIVED         0x1000 /* 1=Page Received */
  #define GG82563_PSSR_DUPLEX                0x2000 /* 1-Full-Duplex */
  #define GG82563_PSSR_SPEED_MASK            0xC000
  #define GG82563_PSSR_SPEED_10MBPS          0x0000 /* 00=10Mbps */
  #define GG82563_PSSR_SPEED_100MBPS         0x4000 /* 01=100Mbps */
  #define GG82563_PSSR_SPEED_1000MBPS        0x8000 /* 10=1000Mbps */
  
  /* PHY Specific Status Register 2 (Page 0, Register 19) */
  #define GG82563_PSSR2_JABBER                0x0001 /* 1=Jabber */
  #define GG82563_PSSR2_POLARITY_CHANGED      0x0002 /* 1=Polarity Changed */
  #define GG82563_PSSR2_ENERGY_DETECT_CHANGED 0x0010 /* 1=Energy Detect Changed */
  #define GG82563_PSSR2_DOWNSHIFT_INTERRUPT   0x0020 /* 1=Downshift Detected */
  #define GG82563_PSSR2_MDI_CROSSOVER_CHANGE  0x0040 /* 1=Crossover Changed */
  #define GG82563_PSSR2_FALSE_CARRIER         0x0100 /* 1=false Carrier */
  #define GG82563_PSSR2_SYMBOL_ERROR          0x0200 /* 1=Symbol Error */
  #define GG82563_PSSR2_LINK_STATUS_CHANGED   0x0400 /* 1=Link Status Changed */
  #define GG82563_PSSR2_AUTO_NEG_COMPLETED    0x0800 /* 1=Auto-Neg Completed */
  #define GG82563_PSSR2_PAGE_RECEIVED         0x1000 /* 1=Page Received */
  #define GG82563_PSSR2_DUPLEX_CHANGED        0x2000 /* 1=Duplex Changed */
  #define GG82563_PSSR2_SPEED_CHANGED         0x4000 /* 1=Speed Changed */
  #define GG82563_PSSR2_AUTO_NEG_ERROR        0x8000 /* 1=Auto-Neg Error */
  
  /* PHY Specific Control Register 2 (Page 0, Register 26) */
  #define GG82563_PSCR2_10BT_POLARITY_FORCE           0x0002 /* 1=Force Negative
  							      Polarity */
  #define GG82563_PSCR2_1000MB_TEST_SELECT_MASK       0x000C
  #define GG82563_PSCR2_1000MB_TEST_SELECT_NORMAL     0x0000 /* 00,01=Normal
  							      Operation */
  #define GG82563_PSCR2_1000MB_TEST_SELECT_112NS      0x0008 /* 10=Select 112ns
  							      Sequence */
  #define GG82563_PSCR2_1000MB_TEST_SELECT_16NS       0x000C /* 11=Select 16ns
  							      Sequence */
  #define GG82563_PSCR2_REVERSE_AUTO_NEG              0x2000 /* 1=Reverse
  							Auto-Negotiation */
  #define GG82563_PSCR2_1000BT_DISABLE                0x4000 /* 1=Disable
  							      1000BASE-T */
  #define GG82563_PSCR2_TRANSMITER_TYPE_MASK          0x8000
  #define GG82563_PSCR2_TRANSMITTER_TYPE_CLASS_B      0x0000 /* 0=Class B */
  #define GG82563_PSCR2_TRANSMITTER_TYPE_CLASS_A      0x8000 /* 1=Class A */
  
  /* MAC Specific Control Register (Page 2, Register 21) */
  /* Tx clock speed for Link Down and 1000BASE-T for the following speeds */
  #define GG82563_MSCR_TX_CLK_MASK                    0x0007
  #define GG82563_MSCR_TX_CLK_10MBPS_2_5MHZ           0x0004
  #define GG82563_MSCR_TX_CLK_100MBPS_25MHZ           0x0005
  #define GG82563_MSCR_TX_CLK_1000MBPS_2_5MHZ         0x0006
  #define GG82563_MSCR_TX_CLK_1000MBPS_25MHZ          0x0007
  
  #define GG82563_MSCR_ASSERT_CRS_ON_TX               0x0010 /* 1=Assert */
  
  /* DSP Distance Register (Page 5, Register 26) */
  #define GG82563_DSPD_CABLE_LENGTH               0x0007 /* 0 = <50M;
  							  1 = 50-80M;
  							  2 = 80-110M;
  							  3 = 110-140M;
  							  4 = >140M */
  
  /* Kumeran Mode Control Register (Page 193, Register 16) */
  #define GG82563_KMCR_PHY_LEDS_EN                    0x0020 /* 1=PHY LEDs,
  							0=Kumeran Inband LEDs */
  #define GG82563_KMCR_FORCE_LINK_UP                  0x0040 /* 1=Force Link Up */
  #define GG82563_KMCR_SUPPRESS_SGMII_EPD_EXT         0x0080
  #define GG82563_KMCR_MDIO_BUS_SPEED_SELECT_MASK     0x0400
  #define GG82563_KMCR_MDIO_BUS_SPEED_SELECT          0x0400 /* 1=6.25MHz,
  							      0=0.8MHz */
  #define GG82563_KMCR_PASS_FALSE_CARRIER             0x0800
  
  /* Power Management Control Register (Page 193, Register 20) */
  #define GG82563_PMCR_ENABLE_ELECTRICAL_IDLE    0x0001 /* 1=Enalbe SERDES
  						Electrical Idle */
  #define GG82563_PMCR_DISABLE_PORT              0x0002 /* 1=Disable Port */
  #define GG82563_PMCR_DISABLE_SERDES            0x0004 /* 1=Disable SERDES */
  #define GG82563_PMCR_REVERSE_AUTO_NEG          0x0008 /* 1=Enable Reverse
  						Auto-Negotiation */
  #define GG82563_PMCR_DISABLE_1000_NON_D0       0x0010 /* 1=Disable 1000Mbps
  							 Auto-Neg in non D0 */
  #define GG82563_PMCR_DISABLE_1000              0x0020 /* 1=Disable 1000Mbps
  							 Auto-Neg Always */
  #define GG82563_PMCR_REVERSE_AUTO_NEG_D0A      0x0040 /* 1=Enable D0a
  						Reverse Auto-Negotiation */
  #define GG82563_PMCR_FORCE_POWER_STATE         0x0080 /* 1=Force Power State */
  #define GG82563_PMCR_PROGRAMMED_POWER_STATE_MASK    0x0300
  #define GG82563_PMCR_PROGRAMMED_POWER_STATE_DR      0x0000 /* 00=Dr */
  #define GG82563_PMCR_PROGRAMMED_POWER_STATE_D0U     0x0100 /* 01=D0u */
  #define GG82563_PMCR_PROGRAMMED_POWER_STATE_D0A     0x0200 /* 10=D0a */
  #define GG82563_PMCR_PROGRAMMED_POWER_STATE_D3      0x0300 /* 11=D3 */
  
  /* In-Band Control Register (Page 194, Register 18) */
  #define GG82563_ICR_DIS_PADDING		0x0010 /* Disable Padding Use */
  
  
  /* Bits...
   * 15-5: page
   * 4-0: register offset
   */
  #define GG82563_PAGE_SHIFT        5
  #define GG82563_REG(page, reg)    \
  	(((page) << GG82563_PAGE_SHIFT) | ((reg) & MAX_PHY_REG_ADDRESS))
  #define GG82563_MIN_ALT_REG       30
  
  /* GG82563 Specific Registers */
  #define GG82563_PHY_SPEC_CTRL           \
  	GG82563_REG(0, 16) /* PHY Specific Control */
  #define GG82563_PHY_SPEC_STATUS         \
  	GG82563_REG(0, 17) /* PHY Specific Status */
  #define GG82563_PHY_INT_ENABLE          \
  	GG82563_REG(0, 18) /* Interrupt Enable */
  #define GG82563_PHY_SPEC_STATUS_2       \
  	GG82563_REG(0, 19) /* PHY Specific Status 2 */
  #define GG82563_PHY_RX_ERR_CNTR         \
  	GG82563_REG(0, 21) /* Receive Error Counter */
  #define GG82563_PHY_PAGE_SELECT         \
  	GG82563_REG(0, 22) /* Page Select */
  #define GG82563_PHY_SPEC_CTRL_2         \
  	GG82563_REG(0, 26) /* PHY Specific Control 2 */
  #define GG82563_PHY_PAGE_SELECT_ALT     \
  	GG82563_REG(0, 29) /* Alternate Page Select */
  #define GG82563_PHY_TEST_CLK_CTRL       \
  	GG82563_REG(0, 30) /* Test Clock Control (use reg. 29 to select) */
  
  #define GG82563_PHY_MAC_SPEC_CTRL       \
  	GG82563_REG(2, 21) /* MAC Specific Control Register */
  #define GG82563_PHY_MAC_SPEC_CTRL_2     \
  	GG82563_REG(2, 26) /* MAC Specific Control 2 */
  
  #define GG82563_PHY_DSP_DISTANCE    \
  	GG82563_REG(5, 26) /* DSP Distance */
  
  /* Page 193 - Port Control Registers */
  #define GG82563_PHY_KMRN_MODE_CTRL   \
  	GG82563_REG(193, 16) /* Kumeran Mode Control */
  #define GG82563_PHY_PORT_RESET          \
  	GG82563_REG(193, 17) /* Port Reset */
  #define GG82563_PHY_REVISION_ID         \
  	GG82563_REG(193, 18) /* Revision ID */
  #define GG82563_PHY_DEVICE_ID           \
  	GG82563_REG(193, 19) /* Device ID */
  #define GG82563_PHY_PWR_MGMT_CTRL       \
  	GG82563_REG(193, 20) /* Power Management Control */
  #define GG82563_PHY_RATE_ADAPT_CTRL     \
  	GG82563_REG(193, 25) /* Rate Adaptation Control */
  
  /* Page 194 - KMRN Registers */
  #define GG82563_PHY_KMRN_FIFO_CTRL_STAT \
  	GG82563_REG(194, 16) /* FIFO's Control/Status */
  #define GG82563_PHY_KMRN_CTRL           \
  	GG82563_REG(194, 17) /* Control */
  #define GG82563_PHY_INBAND_CTRL         \
  	GG82563_REG(194, 18) /* Inband Control */
  #define GG82563_PHY_KMRN_DIAGNOSTIC     \
  	GG82563_REG(194, 19) /* Diagnostic */
  #define GG82563_PHY_ACK_TIMEOUTS        \
  	GG82563_REG(194, 20) /* Acknowledge Timeouts */
  #define GG82563_PHY_ADV_ABILITY         \
  	GG82563_REG(194, 21) /* Advertised Ability */
  #define GG82563_PHY_LINK_PARTNER_ADV_ABILITY \
  	GG82563_REG(194, 23) /* Link Partner Advertised Ability */
  #define GG82563_PHY_ADV_NEXT_PAGE       \
  	GG82563_REG(194, 24) /* Advertised Next Page */
  #define GG82563_PHY_LINK_PARTNER_ADV_NEXT_PAGE \
  	GG82563_REG(194, 25) /* Link Partner Advertised Next page */
  #define GG82563_PHY_KMRN_MISC           \
  	GG82563_REG(194, 26) /* Misc. */
  
  /* 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
  #define IGP01E1000_I_PHY_ID		0x02A80380
  #define M88E1011_I_REV_4   0x04
  #define M88E1111_I_PHY_ID  0x01410CC0
  #define L1LXT971A_PHY_ID   0x001378E0
  #define GG82563_E_PHY_ID   0x01410CA0
  
  #define BME1000_E_PHY_ID     0x01410CB0
  
  #define I210_I_PHY_ID		0x01410C00
  
  /* 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 ICH_FLASH_GFPREG   0x0000
  #define ICH_FLASH_HSFSTS   0x0004
  #define ICH_FLASH_HSFCTL   0x0006
  #define ICH_FLASH_FADDR    0x0008
  #define ICH_FLASH_FDATA0   0x0010
  #define ICH_FLASH_FRACC    0x0050
  #define ICH_FLASH_FREG0    0x0054
  #define ICH_FLASH_FREG1    0x0058
  #define ICH_FLASH_FREG2    0x005C
  #define ICH_FLASH_FREG3    0x0060
  #define ICH_FLASH_FPR0     0x0074
  #define ICH_FLASH_FPR1     0x0078
  #define ICH_FLASH_SSFSTS   0x0090
  #define ICH_FLASH_SSFCTL   0x0092
  #define ICH_FLASH_PREOP    0x0094
  #define ICH_FLASH_OPTYPE   0x0096
  #define ICH_FLASH_OPMENU   0x0098
  
  #define ICH_FLASH_REG_MAPSIZE      0x00A0
  #define ICH_FLASH_SECTOR_SIZE      4096
  #define ICH_GFPREG_BASE_MASK       0x1FFF
  #define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF
  
  #define E1000_I210_SW_FW_SYNC 0x5B50 /* Software-Firmware Synchronization - RW */
  #define E1000_SW_FW_SYNC 0x05B5C /* Software-Firmware Synchronization - RW */
  
  /* SPI EEPROM Status Register */
  #define EEPROM_STATUS_RDY_SPI  0x01
  #define EEPROM_STATUS_WEN_SPI  0x02
  #define EEPROM_STATUS_BP0_SPI  0x04
  #define EEPROM_STATUS_BP1_SPI  0x08
  #define EEPROM_STATUS_WPEN_SPI 0x80
  
  /* SW Semaphore Register */
  #define E1000_SWSM_SMBI		0x00000001 /* Driver Semaphore bit */
  #define E1000_SWSM_SWESMBI	0x00000002 /* FW Semaphore bit */
  #define E1000_SWSM_WMNG		0x00000004 /* Wake MNG Clock */
  #define E1000_SWSM_DRV_LOAD	0x00000008 /* Driver Loaded Bit */
  
  /* FW Semaphore Register */
  #define E1000_FWSM_MODE_MASK    0x0000000E /* FW mode */
  #define E1000_FWSM_MODE_SHIFT            1
  #define E1000_FWSM_FW_VALID     0x00008000 /* FW established a valid mode */
  
  #define E1000_FWSM_RSPCIPHY        0x00000040 /* Reset PHY on PCI reset */
  #define E1000_FWSM_DISSW           0x10000000 /* FW disable SW Write Access */
  #define E1000_FWSM_SKUSEL_MASK     0x60000000 /* LAN SKU select */
  #define E1000_FWSM_SKUEL_SHIFT     29
  #define E1000_FWSM_SKUSEL_EMB      0x0 /* Embedded SKU */
  #define E1000_FWSM_SKUSEL_CONS     0x1 /* Consumer SKU */
  #define E1000_FWSM_SKUSEL_PERF_100 0x2 /* Perf & Corp 10/100 SKU */
  #define E1000_FWSM_SKUSEL_PERF_GBE 0x3 /* Perf & Copr GbE SKU */
  
  #define E1000_GCR       0x05B00 /* PCI-Ex Control */
  #define E1000_GSCL_1    0x05B10 /* PCI-Ex Statistic Control #1 */
  #define E1000_GSCL_2    0x05B14 /* PCI-Ex Statistic Control #2 */
  #define E1000_GSCL_3    0x05B18 /* PCI-Ex Statistic Control #3 */
  #define E1000_GSCL_4    0x05B1C /* PCI-Ex Statistic Control #4 */
  #define E1000_FACTPS    0x05B30 /* Function Active and Power State to MNG */
  #define E1000_SWSM      0x05B50 /* SW Semaphore */
  #define E1000_FWSM      0x05B54 /* FW Semaphore */
  #define E1000_FFLT_DBG  0x05F04 /* Debug Register */
  #define E1000_HICR      0x08F00 /* Host Inteface Control */
  
  #define IGP_ACTIVITY_LED_MASK   0xFFFFF0FF
  #define IGP_ACTIVITY_LED_ENABLE 0x0300
  #define IGP_LED3_MODE           0x07000000
  
  /* Mask bit for PHY class in Word 7 of the EEPROM */
  #define EEPROM_PHY_CLASS_A   0x8000
  #define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x002F  /* Everything but 1000-Half */
  #define AUTONEG_ADVERTISE_10_100_ALL    0x000F /* All 10/100 speeds*/
  #define AUTONEG_ADVERTISE_10_ALL        0x0003 /* 10Mbps Full & Half speeds*/
  
  #define E1000_KUMCTRLSTA_MASK           0x0000FFFF
  #define E1000_KUMCTRLSTA_OFFSET         0x001F0000
  #define E1000_KUMCTRLSTA_OFFSET_SHIFT   16
  #define E1000_KUMCTRLSTA_REN            0x00200000
  
  #define E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL      0x00000000
  #define E1000_KUMCTRLSTA_OFFSET_CTRL           0x00000001
  #define E1000_KUMCTRLSTA_OFFSET_INB_CTRL       0x00000002
  #define E1000_KUMCTRLSTA_OFFSET_DIAG           0x00000003
  #define E1000_KUMCTRLSTA_OFFSET_TIMEOUTS       0x00000004
  #define E1000_KUMCTRLSTA_OFFSET_INB_PARAM      0x00000009
  #define E1000_KUMCTRLSTA_OFFSET_HD_CTRL        0x00000010
  #define E1000_KUMCTRLSTA_OFFSET_M2P_SERDES     0x0000001E
  #define E1000_KUMCTRLSTA_OFFSET_M2P_MODES      0x0000001F
  
  /* FIFO Control */
  #define E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS   0x00000008
  #define E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS   0x00000800
  
  /* In-Band Control */
  #define E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT    0x00000500
  #define E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING  0x00000010
  
  /* Half-Duplex Control */
  #define E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT 0x00000004
  #define E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT  0x00000000
  
  #define E1000_KUMCTRLSTA_OFFSET_K0S_CTRL       0x0000001E
  
  #define E1000_KUMCTRLSTA_DIAG_FELPBK           0x2000
  #define E1000_KUMCTRLSTA_DIAG_NELPBK           0x1000
  
  #define E1000_KUMCTRLSTA_K0S_100_EN            0x2000
  #define E1000_KUMCTRLSTA_K0S_GBE_EN            0x1000
  #define E1000_KUMCTRLSTA_K0S_ENTRY_LATENCY_MASK   0x0003
  
  #define E1000_MNG_ICH_IAMT_MODE         0x2
  #define E1000_MNG_IAMT_MODE             0x3
  #define E1000_MANC_BLK_PHY_RST_ON_IDE   0x00040000 /* Block phy resets */
  #define E1000_KUMCTRLSTA 0x00034 /* MAC-PHY interface - RW */
  /* Number of milliseconds we wait for PHY configuration done after MAC reset */
  #define PHY_CFG_TIMEOUT             100
  #define DEFAULT_80003ES2LAN_TIPG_IPGT_10_100 0x00000009
  #define DEFAULT_80003ES2LAN_TIPG_IPGT_1000   0x00000008
  #define AUTO_ALL_MODES	0
  
  #ifndef E1000_MASTER_SLAVE
  /* Switch to override PHY master/slave setting */
  #define E1000_MASTER_SLAVE	e1000_ms_hw_default
  #endif
  /* Extended Transmit Control */
  #define E1000_TCTL_EXT_BST_MASK  0x000003FF /* Backoff Slot Time */
  #define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */
  
  #define DEFAULT_80003ES2LAN_TCTL_EXT_GCEX   0x00010000
  
  #define PCI_EX_82566_SNOOP_ALL PCI_EX_NO_SNOOP_ALL
  
  #define E1000_GCR_L1_ACT_WITHOUT_L0S_RX 0x08000000
  #define E1000_MC_TBL_SIZE_ICH8LAN  32
  
  #define E1000_CTRL_EXT_INT_TIMER_CLR  0x20000000 /* Clear Interrupt timers
  							after IMS clear */
  #endif	/* _E1000_HW_H_ */