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/*******************************************************************************

     2

     3

  Intel PRO/1000 Linux driver

     4

  Copyright(c) 1999 - 2006 Intel Corporation.

     5

     6

  This program is free software; you can redistribute it and/or modify it

     7

  under the terms and conditions of the GNU General Public License,

     8

  version 2, as published by the Free Software Foundation.

     9

    10

  This program is distributed in the hope it will be useful, but WITHOUT

    11

  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12

  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

    13

  more details.

    14

    15

  You should have received a copy of the GNU General Public License along with

    16

  this program; if not, write to the Free Software Foundation, Inc.,

    17

  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

    18

    19

  The full GNU General Public License is included in this distribution in

    20

  the file called "COPYING".

    21

    22

  Contact Information:

    23

  Linux NICS <linux.nics@intel.com>

    24

  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>

    25

  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

    26

    27

*******************************************************************************/

    28

    29

/* e1000_hw.c

    30

 * Shared functions for accessing and configuring the MAC

    31

 */

    32

    33

    34

#include "e1000_hw-2.6.26-ethercat.h"

    35

    36

static s32 e1000_swfw_sync_acquire(struct e1000_hw *hw, u16 mask);

    37

static void e1000_swfw_sync_release(struct e1000_hw *hw, u16 mask);

    38

static s32 e1000_read_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 *data);

    39

static s32 e1000_write_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 data);

    40

static s32 e1000_get_software_semaphore(struct e1000_hw *hw);

    41

static void e1000_release_software_semaphore(struct e1000_hw *hw);

    42

    43

static u8 e1000_arc_subsystem_valid(struct e1000_hw *hw);

    44

static s32 e1000_check_downshift(struct e1000_hw *hw);

    45

static s32 e1000_check_polarity(struct e1000_hw *hw, e1000_rev_polarity *polarity);

    46

static void e1000_clear_hw_cntrs(struct e1000_hw *hw);

    47

static void e1000_clear_vfta(struct e1000_hw *hw);

    48

static s32 e1000_commit_shadow_ram(struct e1000_hw *hw);

    49

static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw,

    50

						  bool link_up);

    51

static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw);

    52

static s32 e1000_detect_gig_phy(struct e1000_hw *hw);

    53

static s32 e1000_erase_ich8_4k_segment(struct e1000_hw *hw, u32 bank);

    54

static s32 e1000_get_auto_rd_done(struct e1000_hw *hw);

    55

static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, u16 *max_length);

    56

static s32 e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw);

    57

static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw);

    58

static s32 e1000_get_software_flag(struct e1000_hw *hw);

    59

static s32 e1000_ich8_cycle_init(struct e1000_hw *hw);

    60

static s32 e1000_ich8_flash_cycle(struct e1000_hw *hw, u32 timeout);

    61

static s32 e1000_id_led_init(struct e1000_hw *hw);

    62

static s32 e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, u32 cnf_base_addr, u32 cnf_size);

    63

static s32 e1000_init_lcd_from_nvm(struct e1000_hw *hw);

    64

static void e1000_init_rx_addrs(struct e1000_hw *hw);

    65

static void e1000_initialize_hardware_bits(struct e1000_hw *hw);

    66

static bool e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw);

    67

static s32 e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw);

    68

static s32 e1000_mng_enable_host_if(struct e1000_hw *hw);

    69

static s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer, u16 length, u16 offset, u8 *sum);

    70

static s32 e1000_mng_write_cmd_header(struct e1000_hw* hw, struct e1000_host_mng_command_header* hdr);

    71

static s32 e1000_mng_write_commit(struct e1000_hw *hw);

    72

static s32 e1000_phy_ife_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info);

    73

static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info);

    74

static s32 e1000_read_eeprom_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);

    75

static s32 e1000_write_eeprom_eewr(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);

    76

static s32 e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd);

    77

static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info);

    78

static void e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw);

    79

static s32 e1000_read_ich8_byte(struct e1000_hw *hw, u32 index, u8 *data);

    80

static s32 e1000_verify_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 byte);

    81

static s32 e1000_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 byte);

    82

static s32 e1000_read_ich8_word(struct e1000_hw *hw, u32 index, u16 *data);

    83

static s32 e1000_read_ich8_data(struct e1000_hw *hw, u32 index, u32 size, u16 *data);

    84

static s32 e1000_write_ich8_data(struct e1000_hw *hw, u32 index, u32 size, u16 data);

    85

static s32 e1000_read_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);

    86

static s32 e1000_write_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, u16 *data);

    87

static void e1000_release_software_flag(struct e1000_hw *hw);

    88

static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active);

    89

static s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active);

    90

static s32 e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, u32 no_snoop);

    91

static void e1000_set_pci_express_master_disable(struct e1000_hw *hw);

    92

static s32 e1000_wait_autoneg(struct e1000_hw *hw);

    93

static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value);

    94

static s32 e1000_set_phy_type(struct e1000_hw *hw);

    95

static void e1000_phy_init_script(struct e1000_hw *hw);

    96

static s32 e1000_setup_copper_link(struct e1000_hw *hw);

    97

static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw);

    98

static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw);

    99

static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw);

   100

static s32 e1000_config_mac_to_phy(struct e1000_hw *hw);

   101

static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl);

   102

static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl);

   103

static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data,

   104

                                     u16 count);

   105

static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw);

   106

static s32 e1000_phy_reset_dsp(struct e1000_hw *hw);

   107

static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset,

   108

                                      u16 words, u16 *data);

   109

static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw,

   110

                                            u16 offset, u16 words,

   111

                                            u16 *data);

   112

static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw);

   113

static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd);

   114

static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd);

   115

static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data,

   116

                                    u16 count);

   117

static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr,

   118

                                      u16 phy_data);

   119

static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw,u32 reg_addr,

   120

                                     u16 *phy_data);

   121

static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count);

   122

static s32 e1000_acquire_eeprom(struct e1000_hw *hw);

   123

static void e1000_release_eeprom(struct e1000_hw *hw);

   124

static void e1000_standby_eeprom(struct e1000_hw *hw);

   125

static s32 e1000_set_vco_speed(struct e1000_hw *hw);

   126

static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw);

   127

static s32 e1000_set_phy_mode(struct e1000_hw *hw);

   128

static s32 e1000_host_if_read_cookie(struct e1000_hw *hw, u8 *buffer);

   129

static u8 e1000_calculate_mng_checksum(char *buffer, u32 length);

   130

static s32 e1000_configure_kmrn_for_10_100(struct e1000_hw *hw,

   131

                                               u16 duplex);

   132

static s32 e1000_configure_kmrn_for_1000(struct e1000_hw *hw);

   133

   134

/* IGP cable length table */

   135

static const

   136

u16 e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] =

   137

    { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,

   138

      5, 10, 10, 10, 10, 10, 10, 10, 20, 20, 20, 20, 20, 25, 25, 25,

   139

      25, 25, 25, 25, 30, 30, 30, 30, 40, 40, 40, 40, 40, 40, 40, 40,

   140

      40, 50, 50, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 60, 60, 60,

   141

      60, 70, 70, 70, 70, 70, 70, 80, 80, 80, 80, 80, 80, 90, 90, 90,

   142

      90, 90, 90, 90, 90, 90, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,

   143

      100, 100, 100, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110,

   144

      110, 110, 110, 110, 110, 110, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120};

   145

   146

static const

   147

u16 e1000_igp_2_cable_length_table[IGP02E1000_AGC_LENGTH_TABLE_SIZE] =

   148

    { 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21,

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      0, 0, 0, 3, 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41,

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      6, 10, 14, 18, 22, 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61,

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      21, 26, 31, 35, 40, 44, 49, 53, 57, 61, 65, 68, 72, 75, 79, 82,

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      40, 45, 51, 56, 61, 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104,

   153

      60, 66, 72, 77, 82, 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121,

   154

      83, 89, 95, 100, 105, 109, 113, 116, 119, 122, 124,

   155

      104, 109, 114, 118, 121, 124};

   156

   157

/******************************************************************************

   158

 * Set the phy type member in the hw struct.

   159

 *

   160

 * hw - Struct containing variables accessed by shared code

   161

 *****************************************************************************/

   162

static s32

   163

e1000_set_phy_type(struct e1000_hw *hw)

   164

{

   165

    DEBUGFUNC("e1000_set_phy_type");

   166

   167

    if (hw->mac_type == e1000_undefined)

   168

        return -E1000_ERR_PHY_TYPE;

   169

   170

    switch (hw->phy_id) {

   171

    case M88E1000_E_PHY_ID:

   172

    case M88E1000_I_PHY_ID:

   173

    case M88E1011_I_PHY_ID:

   174

    case M88E1111_I_PHY_ID:

   175

        hw->phy_type = e1000_phy_m88;

   176

        break;

   177

    case IGP01E1000_I_PHY_ID:

   178

        if (hw->mac_type == e1000_82541 ||

   179

            hw->mac_type == e1000_82541_rev_2 ||

   180

            hw->mac_type == e1000_82547 ||

   181

            hw->mac_type == e1000_82547_rev_2) {

   182

            hw->phy_type = e1000_phy_igp;

   183

            break;

   184

        }

   185

    case IGP03E1000_E_PHY_ID:

   186

        hw->phy_type = e1000_phy_igp_3;

   187

        break;

   188

    case IFE_E_PHY_ID:

   189

    case IFE_PLUS_E_PHY_ID:

   190

    case IFE_C_E_PHY_ID:

   191

        hw->phy_type = e1000_phy_ife;

   192

        break;

   193

    case GG82563_E_PHY_ID:

   194

        if (hw->mac_type == e1000_80003es2lan) {

   195

            hw->phy_type = e1000_phy_gg82563;

   196

            break;

   197

        }

   198

        /* Fall Through */

   199

    default:

   200

        /* Should never have loaded on this device */

   201

        hw->phy_type = e1000_phy_undefined;

   202

        return -E1000_ERR_PHY_TYPE;

   203

    }

   204

   205

    return E1000_SUCCESS;

   206

}

   207

   208

/******************************************************************************

   209

 * IGP phy init script - initializes the GbE PHY

   210

 *

   211

 * hw - Struct containing variables accessed by shared code

   212

 *****************************************************************************/

   213

static void

   214

e1000_phy_init_script(struct e1000_hw *hw)

   215

{

   216

    u32 ret_val;

   217

    u16 phy_saved_data;

   218

   219

    DEBUGFUNC("e1000_phy_init_script");

   220

   221

    if (hw->phy_init_script) {

   222

        msleep(20);

   223

   224

        /* Save off the current value of register 0x2F5B to be restored at

   225

         * the end of this routine. */

   226

        ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data);

   227

   228

        /* Disabled the PHY transmitter */

   229

        e1000_write_phy_reg(hw, 0x2F5B, 0x0003);

   230

   231

        msleep(20);

   232

   233

        e1000_write_phy_reg(hw,0x0000,0x0140);

   234

   235

        msleep(5);

   236

   237

        switch (hw->mac_type) {

   238

        case e1000_82541:

   239

        case e1000_82547:

   240

            e1000_write_phy_reg(hw, 0x1F95, 0x0001);

   241

   242

            e1000_write_phy_reg(hw, 0x1F71, 0xBD21);

   243

   244

            e1000_write_phy_reg(hw, 0x1F79, 0x0018);

   245

   246

            e1000_write_phy_reg(hw, 0x1F30, 0x1600);

   247

   248

            e1000_write_phy_reg(hw, 0x1F31, 0x0014);

   249

   250

            e1000_write_phy_reg(hw, 0x1F32, 0x161C);

   251

   252

            e1000_write_phy_reg(hw, 0x1F94, 0x0003);

   253

   254

            e1000_write_phy_reg(hw, 0x1F96, 0x003F);

   255

   256

            e1000_write_phy_reg(hw, 0x2010, 0x0008);

   257

            break;

   258

   259

        case e1000_82541_rev_2:

   260

        case e1000_82547_rev_2:

   261

            e1000_write_phy_reg(hw, 0x1F73, 0x0099);

   262

            break;

   263

        default:

   264

            break;

   265

        }

   266

   267

        e1000_write_phy_reg(hw, 0x0000, 0x3300);

   268

   269

        msleep(20);

   270

   271

        /* Now enable the transmitter */

   272

        e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data);

   273

   274

        if (hw->mac_type == e1000_82547) {

   275

            u16 fused, fine, coarse;

   276

   277

            /* Move to analog registers page */

   278

            e1000_read_phy_reg(hw, IGP01E1000_ANALOG_SPARE_FUSE_STATUS, &fused);

   279

   280

            if (!(fused & IGP01E1000_ANALOG_SPARE_FUSE_ENABLED)) {

   281

                e1000_read_phy_reg(hw, IGP01E1000_ANALOG_FUSE_STATUS, &fused);

   282

   283

                fine = fused & IGP01E1000_ANALOG_FUSE_FINE_MASK;

   284

                coarse = fused & IGP01E1000_ANALOG_FUSE_COARSE_MASK;

   285

   286

                if (coarse > IGP01E1000_ANALOG_FUSE_COARSE_THRESH) {

   287

                    coarse -= IGP01E1000_ANALOG_FUSE_COARSE_10;

   288

                    fine -= IGP01E1000_ANALOG_FUSE_FINE_1;

   289

                } else if (coarse == IGP01E1000_ANALOG_FUSE_COARSE_THRESH)

   290

                    fine -= IGP01E1000_ANALOG_FUSE_FINE_10;

   291

   292

                fused = (fused & IGP01E1000_ANALOG_FUSE_POLY_MASK) |

   293

                        (fine & IGP01E1000_ANALOG_FUSE_FINE_MASK) |

   294

                        (coarse & IGP01E1000_ANALOG_FUSE_COARSE_MASK);

   295

   296

                e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_CONTROL, fused);

   297

                e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_BYPASS,

   298

                                    IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL);

   299

            }

   300

        }

   301

    }

   302

}

   303

   304

/******************************************************************************

   305

 * Set the mac type member in the hw struct.

   306

 *

   307

 * hw - Struct containing variables accessed by shared code

   308

 *****************************************************************************/

   309

s32

   310

e1000_set_mac_type(struct e1000_hw *hw)

   311

{

   312

	DEBUGFUNC("e1000_set_mac_type");

   313

   314

	switch (hw->device_id) {

   315

	case E1000_DEV_ID_82542:

   316

		switch (hw->revision_id) {

   317

		case E1000_82542_2_0_REV_ID:

   318

			hw->mac_type = e1000_82542_rev2_0;

   319

			break;

   320

		case E1000_82542_2_1_REV_ID:

   321

			hw->mac_type = e1000_82542_rev2_1;

   322

			break;

   323

		default:

   324

			/* Invalid 82542 revision ID */

   325

			return -E1000_ERR_MAC_TYPE;

   326

		}

   327

		break;

   328

	case E1000_DEV_ID_82543GC_FIBER:

   329

	case E1000_DEV_ID_82543GC_COPPER:

   330

		hw->mac_type = e1000_82543;

   331

		break;

   332

	case E1000_DEV_ID_82544EI_COPPER:

   333

	case E1000_DEV_ID_82544EI_FIBER:

   334

	case E1000_DEV_ID_82544GC_COPPER:

   335

	case E1000_DEV_ID_82544GC_LOM:

   336

		hw->mac_type = e1000_82544;

   337

		break;

   338

	case E1000_DEV_ID_82540EM:

   339

	case E1000_DEV_ID_82540EM_LOM:

   340

	case E1000_DEV_ID_82540EP:

   341

	case E1000_DEV_ID_82540EP_LOM:

   342

	case E1000_DEV_ID_82540EP_LP:

   343

		hw->mac_type = e1000_82540;

   344

		break;

   345

	case E1000_DEV_ID_82545EM_COPPER:

   346

	case E1000_DEV_ID_82545EM_FIBER:

   347

		hw->mac_type = e1000_82545;

   348

		break;

   349

	case E1000_DEV_ID_82545GM_COPPER:

   350

	case E1000_DEV_ID_82545GM_FIBER:

   351

	case E1000_DEV_ID_82545GM_SERDES:

   352

		hw->mac_type = e1000_82545_rev_3;

   353

		break;

   354

	case E1000_DEV_ID_82546EB_COPPER:

   355

	case E1000_DEV_ID_82546EB_FIBER:

   356

	case E1000_DEV_ID_82546EB_QUAD_COPPER:

   357

		hw->mac_type = e1000_82546;

   358

		break;

   359

	case E1000_DEV_ID_82546GB_COPPER:

   360

	case E1000_DEV_ID_82546GB_FIBER:

   361

	case E1000_DEV_ID_82546GB_SERDES:

   362

	case E1000_DEV_ID_82546GB_PCIE:

   363

	case E1000_DEV_ID_82546GB_QUAD_COPPER:

   364

	case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:

   365

		hw->mac_type = e1000_82546_rev_3;

   366

		break;

   367

	case E1000_DEV_ID_82541EI:

   368

	case E1000_DEV_ID_82541EI_MOBILE:

   369

	case E1000_DEV_ID_82541ER_LOM:

   370

		hw->mac_type = e1000_82541;

   371

		break;

   372

	case E1000_DEV_ID_82541ER:

   373

	case E1000_DEV_ID_82541GI:

   374

	case E1000_DEV_ID_82541GI_LF:

   375

	case E1000_DEV_ID_82541GI_MOBILE:

   376

		hw->mac_type = e1000_82541_rev_2;

   377

		break;

   378

	case E1000_DEV_ID_82547EI:

   379

	case E1000_DEV_ID_82547EI_MOBILE:

   380

		hw->mac_type = e1000_82547;

   381

		break;

   382

	case E1000_DEV_ID_82547GI:

   383

		hw->mac_type = e1000_82547_rev_2;

   384

		break;

   385

	case E1000_DEV_ID_82571EB_COPPER:

   386

	case E1000_DEV_ID_82571EB_FIBER:

   387

	case E1000_DEV_ID_82571EB_SERDES:

   388

	case E1000_DEV_ID_82571EB_SERDES_DUAL:

   389

	case E1000_DEV_ID_82571EB_SERDES_QUAD:

   390

	case E1000_DEV_ID_82571EB_QUAD_COPPER:

   391

	case E1000_DEV_ID_82571PT_QUAD_COPPER:

   392

	case E1000_DEV_ID_82571EB_QUAD_FIBER:

   393

	case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:

   394

		hw->mac_type = e1000_82571;

   395

		break;

   396

	case E1000_DEV_ID_82572EI_COPPER:

   397

	case E1000_DEV_ID_82572EI_FIBER:

   398

	case E1000_DEV_ID_82572EI_SERDES:

   399

	case E1000_DEV_ID_82572EI:

   400

		hw->mac_type = e1000_82572;

   401

		break;

   402

	case E1000_DEV_ID_82573E:

   403

	case E1000_DEV_ID_82573E_IAMT:

   404

	case E1000_DEV_ID_82573L:

   405

		hw->mac_type = e1000_82573;

   406

		break;

   407

	case E1000_DEV_ID_80003ES2LAN_COPPER_SPT:

   408

	case E1000_DEV_ID_80003ES2LAN_SERDES_SPT:

   409

	case E1000_DEV_ID_80003ES2LAN_COPPER_DPT:

   410

	case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:

   411

		hw->mac_type = e1000_80003es2lan;

   412

		break;

   413

	case E1000_DEV_ID_ICH8_IGP_M_AMT:

   414

	case E1000_DEV_ID_ICH8_IGP_AMT:

   415

	case E1000_DEV_ID_ICH8_IGP_C:

   416

	case E1000_DEV_ID_ICH8_IFE:

   417

	case E1000_DEV_ID_ICH8_IFE_GT:

   418

	case E1000_DEV_ID_ICH8_IFE_G:

   419

	case E1000_DEV_ID_ICH8_IGP_M:

   420

		hw->mac_type = e1000_ich8lan;

   421

		break;

   422

	default:

   423

		/* Should never have loaded on this device */

   424

		return -E1000_ERR_MAC_TYPE;

   425

	}

   426

   427

	switch (hw->mac_type) {

   428

	case e1000_ich8lan:

   429

		hw->swfwhw_semaphore_present = true;

   430

		hw->asf_firmware_present = true;

   431

		break;

   432

	case e1000_80003es2lan:

   433

		hw->swfw_sync_present = true;

   434

		/* fall through */

   435

	case e1000_82571:

   436

	case e1000_82572:

   437

	case e1000_82573:

   438

		hw->eeprom_semaphore_present = true;

   439

		/* fall through */

   440

	case e1000_82541:

   441

	case e1000_82547:

   442

	case e1000_82541_rev_2:

   443

	case e1000_82547_rev_2:

   444

		hw->asf_firmware_present = true;

   445

		break;

   446

	default:

   447

		break;

   448

	}

   449

   450

	/* The 82543 chip does not count tx_carrier_errors properly in

   451

	 * FD mode

   452

	 */

   453

	if (hw->mac_type == e1000_82543)

   454

		hw->bad_tx_carr_stats_fd = true;

   455

   456

	/* capable of receiving management packets to the host */

   457

	if (hw->mac_type >= e1000_82571)

   458

		hw->has_manc2h = true;

   459

   460

	/* In rare occasions, ESB2 systems would end up started without

   461

	 * the RX unit being turned on.

   462

	 */

   463

	if (hw->mac_type == e1000_80003es2lan)

   464

		hw->rx_needs_kicking = true;

   465

   466

	if (hw->mac_type > e1000_82544)

   467

		hw->has_smbus = true;

   468

   469

	return E1000_SUCCESS;

   470

}

   471

   472

/*****************************************************************************

   473

 * Set media type and TBI compatibility.

   474

 *

   475

 * hw - Struct containing variables accessed by shared code

   476

 * **************************************************************************/

   477

void

   478

e1000_set_media_type(struct e1000_hw *hw)

   479

{

   480

    u32 status;

   481

   482

    DEBUGFUNC("e1000_set_media_type");

   483

   484

    if (hw->mac_type != e1000_82543) {

   485

        /* tbi_compatibility is only valid on 82543 */

   486

        hw->tbi_compatibility_en = false;

   487

    }

   488

   489

    switch (hw->device_id) {

   490

    case E1000_DEV_ID_82545GM_SERDES:

   491

    case E1000_DEV_ID_82546GB_SERDES:

   492

    case E1000_DEV_ID_82571EB_SERDES:

   493

    case E1000_DEV_ID_82571EB_SERDES_DUAL:

   494

    case E1000_DEV_ID_82571EB_SERDES_QUAD:

   495

    case E1000_DEV_ID_82572EI_SERDES:

   496

    case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:

   497

        hw->media_type = e1000_media_type_internal_serdes;

   498

        break;

   499

    default:

   500

        switch (hw->mac_type) {

   501

        case e1000_82542_rev2_0:

   502

        case e1000_82542_rev2_1:

   503

            hw->media_type = e1000_media_type_fiber;

   504

            break;

   505

        case e1000_ich8lan:

   506

        case e1000_82573:

   507

            /* The STATUS_TBIMODE bit is reserved or reused for the this

   508

             * device.

   509

             */

   510

            hw->media_type = e1000_media_type_copper;

   511

            break;

   512

        default:

   513

            status = E1000_READ_REG(hw, STATUS);

   514

            if (status & E1000_STATUS_TBIMODE) {

   515

                hw->media_type = e1000_media_type_fiber;

   516

                /* tbi_compatibility not valid on fiber */

   517

                hw->tbi_compatibility_en = false;

   518

            } else {

   519

                hw->media_type = e1000_media_type_copper;

   520

            }

   521

            break;

   522

        }

   523

    }

   524

}

   525

   526

/******************************************************************************

   527

 * Reset the transmit and receive units; mask and clear all interrupts.

   528

 *

   529

 * hw - Struct containing variables accessed by shared code

   530