1 /*******************************************************************************
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2006 Intel Corporation.
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.
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
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.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
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
27 *******************************************************************************/
30 * Shared functions for accessing and configuring the MAC
36 static int32_t e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask);
37 static void e1000_swfw_sync_release(struct e1000_hw *hw, uint16_t mask);
38 static int32_t e1000_read_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t *data);
39 static int32_t e1000_write_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, uint16_t data);
40 static int32_t e1000_get_software_semaphore(struct e1000_hw *hw);
41 static void e1000_release_software_semaphore(struct e1000_hw *hw);
43 static uint8_t e1000_arc_subsystem_valid(struct e1000_hw *hw);
44 static int32_t e1000_check_downshift(struct e1000_hw *hw);
45 static int32_t 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 int32_t e1000_commit_shadow_ram(struct e1000_hw *hw);
49 static int32_t e1000_config_dsp_after_link_change(struct e1000_hw *hw, boolean_t link_up);
50 static int32_t e1000_config_fc_after_link_up(struct e1000_hw *hw);
51 static int32_t e1000_detect_gig_phy(struct e1000_hw *hw);
52 static int32_t e1000_erase_ich8_4k_segment(struct e1000_hw *hw, uint32_t bank);
53 static int32_t e1000_get_auto_rd_done(struct e1000_hw *hw);
54 static int32_t e1000_get_cable_length(struct e1000_hw *hw, uint16_t *min_length, uint16_t *max_length);
55 static int32_t e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw);
56 static int32_t e1000_get_phy_cfg_done(struct e1000_hw *hw);
57 static int32_t e1000_get_software_flag(struct e1000_hw *hw);
58 static int32_t e1000_ich8_cycle_init(struct e1000_hw *hw);
59 static int32_t e1000_ich8_flash_cycle(struct e1000_hw *hw, uint32_t timeout);
60 static int32_t e1000_id_led_init(struct e1000_hw *hw);
61 static int32_t e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, uint32_t cnf_base_addr, uint32_t cnf_size);
62 static int32_t e1000_init_lcd_from_nvm(struct e1000_hw *hw);
63 static void e1000_init_rx_addrs(struct e1000_hw *hw);
64 static void e1000_initialize_hardware_bits(struct e1000_hw *hw);
65 static boolean_t e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw);
66 static int32_t e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw);
67 static int32_t e1000_mng_enable_host_if(struct e1000_hw *hw);
68 static int32_t e1000_mng_host_if_write(struct e1000_hw *hw, uint8_t *buffer, uint16_t length, uint16_t offset, uint8_t *sum);
69 static int32_t e1000_mng_write_cmd_header(struct e1000_hw* hw, struct e1000_host_mng_command_header* hdr);
70 static int32_t e1000_mng_write_commit(struct e1000_hw *hw);
71 static int32_t e1000_phy_ife_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info);
72 static int32_t e1000_phy_igp_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info);
73 static int32_t e1000_read_eeprom_eerd(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data);
74 static int32_t e1000_write_eeprom_eewr(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data);
75 static int32_t e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd);
76 static int32_t e1000_phy_m88_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info);
77 static void e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw);
78 static int32_t e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t *data);
79 static int32_t e1000_verify_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t byte);
80 static int32_t e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t byte);
81 static int32_t e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t *data);
82 static int32_t e1000_read_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size, uint16_t *data);
83 static int32_t e1000_write_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size, uint16_t data);
84 static int32_t e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data);
85 static int32_t e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, uint16_t *data);
86 static void e1000_release_software_flag(struct e1000_hw *hw);
87 static int32_t e1000_set_d3_lplu_state(struct e1000_hw *hw, boolean_t active);
88 static int32_t e1000_set_d0_lplu_state(struct e1000_hw *hw, boolean_t active);
89 static int32_t e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, uint32_t no_snoop);
90 static void e1000_set_pci_express_master_disable(struct e1000_hw *hw);
91 static int32_t e1000_wait_autoneg(struct e1000_hw *hw);
92 static void e1000_write_reg_io(struct e1000_hw *hw, uint32_t offset, uint32_t value);
93 static int32_t e1000_set_phy_type(struct e1000_hw *hw);
94 static void e1000_phy_init_script(struct e1000_hw *hw);
95 static int32_t e1000_setup_copper_link(struct e1000_hw *hw);
96 static int32_t e1000_setup_fiber_serdes_link(struct e1000_hw *hw);
97 static int32_t e1000_adjust_serdes_amplitude(struct e1000_hw *hw);
98 static int32_t e1000_phy_force_speed_duplex(struct e1000_hw *hw);
99 static int32_t e1000_config_mac_to_phy(struct e1000_hw *hw);
100 static void e1000_raise_mdi_clk(struct e1000_hw *hw, uint32_t *ctrl);
101 static void e1000_lower_mdi_clk(struct e1000_hw *hw, uint32_t *ctrl);
102 static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, uint32_t data,
104 static uint16_t e1000_shift_in_mdi_bits(struct e1000_hw *hw);
105 static int32_t e1000_phy_reset_dsp(struct e1000_hw *hw);
106 static int32_t e1000_write_eeprom_spi(struct e1000_hw *hw, uint16_t offset,
107 uint16_t words, uint16_t *data);
108 static int32_t e1000_write_eeprom_microwire(struct e1000_hw *hw,
109 uint16_t offset, uint16_t words,
111 static int32_t e1000_spi_eeprom_ready(struct e1000_hw *hw);
112 static void e1000_raise_ee_clk(struct e1000_hw *hw, uint32_t *eecd);
113 static void e1000_lower_ee_clk(struct e1000_hw *hw, uint32_t *eecd);
114 static void e1000_shift_out_ee_bits(struct e1000_hw *hw, uint16_t data,
116 static int32_t e1000_write_phy_reg_ex(struct e1000_hw *hw, uint32_t reg_addr,
118 static int32_t e1000_read_phy_reg_ex(struct e1000_hw *hw,uint32_t reg_addr,
120 static uint16_t e1000_shift_in_ee_bits(struct e1000_hw *hw, uint16_t count);
121 static int32_t e1000_acquire_eeprom(struct e1000_hw *hw);
122 static void e1000_release_eeprom(struct e1000_hw *hw);
123 static void e1000_standby_eeprom(struct e1000_hw *hw);
124 static int32_t e1000_set_vco_speed(struct e1000_hw *hw);
125 static int32_t e1000_polarity_reversal_workaround(struct e1000_hw *hw);
126 static int32_t e1000_set_phy_mode(struct e1000_hw *hw);
127 static int32_t e1000_host_if_read_cookie(struct e1000_hw *hw, uint8_t *buffer);
128 static uint8_t e1000_calculate_mng_checksum(char *buffer, uint32_t length);
129 static int32_t e1000_configure_kmrn_for_10_100(struct e1000_hw *hw,
131 static int32_t e1000_configure_kmrn_for_1000(struct e1000_hw *hw);
133 /* IGP cable length table */
135 uint16_t e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] =
136 { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
137 5, 10, 10, 10, 10, 10, 10, 10, 20, 20, 20, 20, 20, 25, 25, 25,
138 25, 25, 25, 25, 30, 30, 30, 30, 40, 40, 40, 40, 40, 40, 40, 40,
139 40, 50, 50, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 60, 60, 60,
140 60, 70, 70, 70, 70, 70, 70, 80, 80, 80, 80, 80, 80, 90, 90, 90,
141 90, 90, 90, 90, 90, 90, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100,
142 100, 100, 100, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110,
143 110, 110, 110, 110, 110, 110, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120};
146 uint16_t e1000_igp_2_cable_length_table[IGP02E1000_AGC_LENGTH_TABLE_SIZE] =
147 { 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21,
148 0, 0, 0, 3, 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41,
149 6, 10, 14, 18, 22, 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61,
150 21, 26, 31, 35, 40, 44, 49, 53, 57, 61, 65, 68, 72, 75, 79, 82,
151 40, 45, 51, 56, 61, 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104,
152 60, 66, 72, 77, 82, 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121,
153 83, 89, 95, 100, 105, 109, 113, 116, 119, 122, 124,
154 104, 109, 114, 118, 121, 124};
156 /******************************************************************************
157 * Set the phy type member in the hw struct.
159 * hw - Struct containing variables accessed by shared code
160 *****************************************************************************/
162 e1000_set_phy_type(struct e1000_hw *hw)
164 DEBUGFUNC("e1000_set_phy_type");
166 if (hw->mac_type == e1000_undefined)
167 return -E1000_ERR_PHY_TYPE;
169 switch (hw->phy_id) {
170 case M88E1000_E_PHY_ID:
171 case M88E1000_I_PHY_ID:
172 case M88E1011_I_PHY_ID:
173 case M88E1111_I_PHY_ID:
174 hw->phy_type = e1000_phy_m88;
176 case IGP01E1000_I_PHY_ID:
177 if (hw->mac_type == e1000_82541 ||
178 hw->mac_type == e1000_82541_rev_2 ||
179 hw->mac_type == e1000_82547 ||
180 hw->mac_type == e1000_82547_rev_2) {
181 hw->phy_type = e1000_phy_igp;
184 case IGP03E1000_E_PHY_ID:
185 hw->phy_type = e1000_phy_igp_3;
188 case IFE_PLUS_E_PHY_ID:
190 hw->phy_type = e1000_phy_ife;
192 case GG82563_E_PHY_ID:
193 if (hw->mac_type == e1000_80003es2lan) {
194 hw->phy_type = e1000_phy_gg82563;
199 /* Should never have loaded on this device */
200 hw->phy_type = e1000_phy_undefined;
201 return -E1000_ERR_PHY_TYPE;
204 return E1000_SUCCESS;
207 /******************************************************************************
208 * IGP phy init script - initializes the GbE PHY
210 * hw - Struct containing variables accessed by shared code
211 *****************************************************************************/
213 e1000_phy_init_script(struct e1000_hw *hw)
216 uint16_t phy_saved_data;
218 DEBUGFUNC("e1000_phy_init_script");
220 if (hw->phy_init_script) {
223 /* Save off the current value of register 0x2F5B to be restored at
224 * the end of this routine. */
225 ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data);
227 /* Disabled the PHY transmitter */
228 e1000_write_phy_reg(hw, 0x2F5B, 0x0003);
232 e1000_write_phy_reg(hw,0x0000,0x0140);
236 switch (hw->mac_type) {
239 e1000_write_phy_reg(hw, 0x1F95, 0x0001);
241 e1000_write_phy_reg(hw, 0x1F71, 0xBD21);
243 e1000_write_phy_reg(hw, 0x1F79, 0x0018);
245 e1000_write_phy_reg(hw, 0x1F30, 0x1600);
247 e1000_write_phy_reg(hw, 0x1F31, 0x0014);
249 e1000_write_phy_reg(hw, 0x1F32, 0x161C);
251 e1000_write_phy_reg(hw, 0x1F94, 0x0003);
253 e1000_write_phy_reg(hw, 0x1F96, 0x003F);
255 e1000_write_phy_reg(hw, 0x2010, 0x0008);
258 case e1000_82541_rev_2:
259 case e1000_82547_rev_2:
260 e1000_write_phy_reg(hw, 0x1F73, 0x0099);
266 e1000_write_phy_reg(hw, 0x0000, 0x3300);
270 /* Now enable the transmitter */
271 e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data);
273 if (hw->mac_type == e1000_82547) {
274 uint16_t fused, fine, coarse;
276 /* Move to analog registers page */
277 e1000_read_phy_reg(hw, IGP01E1000_ANALOG_SPARE_FUSE_STATUS, &fused);
279 if (!(fused & IGP01E1000_ANALOG_SPARE_FUSE_ENABLED)) {
280 e1000_read_phy_reg(hw, IGP01E1000_ANALOG_FUSE_STATUS, &fused);
282 fine = fused & IGP01E1000_ANALOG_FUSE_FINE_MASK;
283 coarse = fused & IGP01E1000_ANALOG_FUSE_COARSE_MASK;
285 if (coarse > IGP01E1000_ANALOG_FUSE_COARSE_THRESH) {
286 coarse -= IGP01E1000_ANALOG_FUSE_COARSE_10;
287 fine -= IGP01E1000_ANALOG_FUSE_FINE_1;
288 } else if (coarse == IGP01E1000_ANALOG_FUSE_COARSE_THRESH)
289 fine -= IGP01E1000_ANALOG_FUSE_FINE_10;
291 fused = (fused & IGP01E1000_ANALOG_FUSE_POLY_MASK) |
292 (fine & IGP01E1000_ANALOG_FUSE_FINE_MASK) |
293 (coarse & IGP01E1000_ANALOG_FUSE_COARSE_MASK);
295 e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_CONTROL, fused);
296 e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_BYPASS,
297 IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL);
303 /******************************************************************************
304 * Set the mac type member in the hw struct.
306 * hw - Struct containing variables accessed by shared code
307 *****************************************************************************/
309 e1000_set_mac_type(struct e1000_hw *hw)
311 DEBUGFUNC("e1000_set_mac_type");
313 switch (hw->device_id) {
314 case E1000_DEV_ID_82542:
315 switch (hw->revision_id) {
316 case E1000_82542_2_0_REV_ID:
317 hw->mac_type = e1000_82542_rev2_0;
319 case E1000_82542_2_1_REV_ID:
320 hw->mac_type = e1000_82542_rev2_1;
323 /* Invalid 82542 revision ID */
324 return -E1000_ERR_MAC_TYPE;
327 case E1000_DEV_ID_82543GC_FIBER:
328 case E1000_DEV_ID_82543GC_COPPER:
329 hw->mac_type = e1000_82543;
331 case E1000_DEV_ID_82544EI_COPPER:
332 case E1000_DEV_ID_82544EI_FIBER:
333 case E1000_DEV_ID_82544GC_COPPER:
334 case E1000_DEV_ID_82544GC_LOM:
335 hw->mac_type = e1000_82544;
337 case E1000_DEV_ID_82540EM:
338 case E1000_DEV_ID_82540EM_LOM:
339 case E1000_DEV_ID_82540EP:
340 case E1000_DEV_ID_82540EP_LOM:
341 case E1000_DEV_ID_82540EP_LP:
342 hw->mac_type = e1000_82540;
344 case E1000_DEV_ID_82545EM_COPPER:
345 case E1000_DEV_ID_82545EM_FIBER:
346 hw->mac_type = e1000_82545;
348 case E1000_DEV_ID_82545GM_COPPER:
349 case E1000_DEV_ID_82545GM_FIBER:
350 case E1000_DEV_ID_82545GM_SERDES:
351 hw->mac_type = e1000_82545_rev_3;
353 case E1000_DEV_ID_82546EB_COPPER:
354 case E1000_DEV_ID_82546EB_FIBER:
355 case E1000_DEV_ID_82546EB_QUAD_COPPER:
356 hw->mac_type = e1000_82546;
358 case E1000_DEV_ID_82546GB_COPPER:
359 case E1000_DEV_ID_82546GB_FIBER:
360 case E1000_DEV_ID_82546GB_SERDES:
361 case E1000_DEV_ID_82546GB_PCIE:
362 case E1000_DEV_ID_82546GB_QUAD_COPPER:
363 case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
364 hw->mac_type = e1000_82546_rev_3;
366 case E1000_DEV_ID_82541EI:
367 case E1000_DEV_ID_82541EI_MOBILE:
368 case E1000_DEV_ID_82541ER_LOM:
369 hw->mac_type = e1000_82541;
371 case E1000_DEV_ID_82541ER:
372 case E1000_DEV_ID_82541GI:
373 case E1000_DEV_ID_82541GI_LF:
374 case E1000_DEV_ID_82541GI_MOBILE:
375 hw->mac_type = e1000_82541_rev_2;
377 case E1000_DEV_ID_82547EI:
378 case E1000_DEV_ID_82547EI_MOBILE:
379 hw->mac_type = e1000_82547;
381 case E1000_DEV_ID_82547GI:
382 hw->mac_type = e1000_82547_rev_2;
384 case E1000_DEV_ID_82571EB_COPPER:
385 case E1000_DEV_ID_82571EB_FIBER:
386 case E1000_DEV_ID_82571EB_SERDES:
387 case E1000_DEV_ID_82571EB_QUAD_COPPER:
388 case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE:
389 hw->mac_type = e1000_82571;
391 case E1000_DEV_ID_82572EI_COPPER:
392 case E1000_DEV_ID_82572EI_FIBER:
393 case E1000_DEV_ID_82572EI_SERDES:
394 case E1000_DEV_ID_82572EI:
395 hw->mac_type = e1000_82572;
397 case E1000_DEV_ID_82573E:
398 case E1000_DEV_ID_82573E_IAMT:
399 case E1000_DEV_ID_82573L:
400 hw->mac_type = e1000_82573;
402 case E1000_DEV_ID_80003ES2LAN_COPPER_SPT:
403 case E1000_DEV_ID_80003ES2LAN_SERDES_SPT:
404 case E1000_DEV_ID_80003ES2LAN_COPPER_DPT:
405 case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
406 hw->mac_type = e1000_80003es2lan;
408 case E1000_DEV_ID_ICH8_IGP_M_AMT:
409 case E1000_DEV_ID_ICH8_IGP_AMT:
410 case E1000_DEV_ID_ICH8_IGP_C:
411 case E1000_DEV_ID_ICH8_IFE:
412 case E1000_DEV_ID_ICH8_IFE_GT:
413 case E1000_DEV_ID_ICH8_IFE_G:
414 case E1000_DEV_ID_ICH8_IGP_M:
415 hw->mac_type = e1000_ich8lan;
418 /* Should never have loaded on this device */
419 return -E1000_ERR_MAC_TYPE;
422 switch (hw->mac_type) {
424 hw->swfwhw_semaphore_present = TRUE;
425 hw->asf_firmware_present = TRUE;
427 case e1000_80003es2lan:
428 hw->swfw_sync_present = TRUE;
433 hw->eeprom_semaphore_present = TRUE;
437 case e1000_82541_rev_2:
438 case e1000_82547_rev_2:
439 hw->asf_firmware_present = TRUE;
445 /* The 82543 chip does not count tx_carrier_errors properly in
448 if (hw->mac_type == e1000_82543)
449 hw->bad_tx_carr_stats_fd = TRUE;
451 /* capable of receiving management packets to the host */
452 if (hw->mac_type >= e1000_82571)
453 hw->has_manc2h = TRUE;
455 /* In rare occasions, ESB2 systems would end up started without
456 * the RX unit being turned on.
458 if (hw->mac_type == e1000_80003es2lan)
459 hw->rx_needs_kicking = TRUE;
461 if (hw->mac_type > e1000_82544)
462 hw->has_smbus = TRUE;
464 return E1000_SUCCESS;
467 /*****************************************************************************
468 * Set media type and TBI compatibility.
470 * hw - Struct containing variables accessed by shared code
471 * **************************************************************************/
473 e1000_set_media_type(struct e1000_hw *hw)
477 DEBUGFUNC("e1000_set_media_type");
479 if (hw->mac_type != e1000_82543) {
480 /* tbi_compatibility is only valid on 82543 */
481 hw->tbi_compatibility_en = FALSE;
484 switch (hw->device_id) {
485 case E1000_DEV_ID_82545GM_SERDES:
486 case E1000_DEV_ID_82546GB_SERDES:
487 case E1000_DEV_ID_82571EB_SERDES:
488 case E1000_DEV_ID_82572EI_SERDES:
489 case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
490 hw->media_type = e1000_media_type_internal_serdes;
493 switch (hw->mac_type) {
494 case e1000_82542_rev2_0:
495 case e1000_82542_rev2_1:
496 hw->media_type = e1000_media_type_fiber;
500 /* The STATUS_TBIMODE bit is reserved or reused for the this
503 hw->media_type = e1000_media_type_copper;
506 status = E1000_READ_REG(hw, STATUS);
507 if (status & E1000_STATUS_TBIMODE) {
508 hw->media_type = e1000_media_type_fiber;
509 /* tbi_compatibility not valid on fiber */
510 hw->tbi_compatibility_en = FALSE;
512 hw->media_type = e1000_media_type_copper;
519 /******************************************************************************
520 * Reset the transmit and receive units; mask and clear all interrupts.
522 * hw - Struct containing variables accessed by shared code
523 *****************************************************************************/
525 e1000_reset_hw(struct e1000_hw *hw)
533 uint32_t extcnf_ctrl;
536 DEBUGFUNC("e1000_reset_hw");
538 /* For 82542 (rev 2.0), disable MWI before issuing a device reset */
539 if (hw->mac_type == e1000_82542_rev2_0) {
540 DEBUGOUT("Disabling MWI on 82542 rev 2.0\n");
541 e1000_pci_clear_mwi(hw);
544 if (hw->bus_type == e1000_bus_type_pci_express) {
545 /* Prevent the PCI-E bus from sticking if there is no TLP connection
546 * on the last TLP read/write transaction when MAC is reset.
548 if (e1000_disable_pciex_master(hw) != E1000_SUCCESS) {
549 DEBUGOUT("PCI-E Master disable polling has failed.\n");
553 /* Clear interrupt mask to stop board from generating interrupts */
554 DEBUGOUT("Masking off all interrupts\n");
555 E1000_WRITE_REG(hw, IMC, 0xffffffff);
557 /* Disable the Transmit and Receive units. Then delay to allow
558 * any pending transactions to complete before we hit the MAC with
561 E1000_WRITE_REG(hw, RCTL, 0);
562 E1000_WRITE_REG(hw, TCTL, E1000_TCTL_PSP);
563 E1000_WRITE_FLUSH(hw);
565 /* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */
566 hw->tbi_compatibility_on = FALSE;
568 /* Delay to allow any outstanding PCI transactions to complete before
569 * resetting the device
573 ctrl = E1000_READ_REG(hw, CTRL);
575 /* Must reset the PHY before resetting the MAC */
576 if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) {
577 E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_PHY_RST));
581 /* Must acquire the MDIO ownership before MAC reset.
582 * Ownership defaults to firmware after a reset. */
583 if (hw->mac_type == e1000_82573) {
586 extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL);
587 extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
590 E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl);
591 extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL);
593 if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP)
596 extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP;
603 /* Workaround for ICH8 bit corruption issue in FIFO memory */
604 if (hw->mac_type == e1000_ich8lan) {
605 /* Set Tx and Rx buffer allocation to 8k apiece. */
606 E1000_WRITE_REG(hw, PBA, E1000_PBA_8K);
607 /* Set Packet Buffer Size to 16k. */
608 E1000_WRITE_REG(hw, PBS, E1000_PBS_16K);
611 /* Issue a global reset to the MAC. This will reset the chip's
612 * transmit, receive, DMA, and link units. It will not effect
613 * the current PCI configuration. The global reset bit is self-
614 * clearing, and should clear within a microsecond.
616 DEBUGOUT("Issuing a global reset to MAC\n");
618 switch (hw->mac_type) {
624 case e1000_82541_rev_2:
625 /* These controllers can't ack the 64-bit write when issuing the
626 * reset, so use IO-mapping as a workaround to issue the reset */
627 E1000_WRITE_REG_IO(hw, CTRL, (ctrl | E1000_CTRL_RST));
629 case e1000_82545_rev_3:
630 case e1000_82546_rev_3:
631 /* Reset is performed on a shadow of the control register */
632 E1000_WRITE_REG(hw, CTRL_DUP, (ctrl | E1000_CTRL_RST));
635 if (!hw->phy_reset_disable &&
636 e1000_check_phy_reset_block(hw) == E1000_SUCCESS) {
637 /* e1000_ich8lan PHY HW reset requires MAC CORE reset
638 * at the same time to make sure the interface between
639 * MAC and the external PHY is reset.
641 ctrl |= E1000_CTRL_PHY_RST;
644 e1000_get_software_flag(hw);
645 E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_RST));
649 E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_RST));
653 /* After MAC reset, force reload of EEPROM to restore power-on settings to
654 * device. Later controllers reload the EEPROM automatically, so just wait
655 * for reload to complete.
657 switch (hw->mac_type) {
658 case e1000_82542_rev2_0:
659 case e1000_82542_rev2_1:
662 /* Wait for reset to complete */
664 ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
665 ctrl_ext |= E1000_CTRL_EXT_EE_RST;
666 E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
667 E1000_WRITE_FLUSH(hw);
668 /* Wait for EEPROM reload */
672 case e1000_82541_rev_2:
674 case e1000_82547_rev_2:
675 /* Wait for EEPROM reload */
679 if (e1000_is_onboard_nvm_eeprom(hw) == FALSE) {
681 ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
682 ctrl_ext |= E1000_CTRL_EXT_EE_RST;
683 E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
684 E1000_WRITE_FLUSH(hw);
688 /* Auto read done will delay 5ms or poll based on mac type */
689 ret_val = e1000_get_auto_rd_done(hw);
695 /* Disable HW ARPs on ASF enabled adapters */
696 if (hw->mac_type >= e1000_82540 && hw->mac_type <= e1000_82547_rev_2) {
697 manc = E1000_READ_REG(hw, MANC);
698 manc &= ~(E1000_MANC_ARP_EN);
699 E1000_WRITE_REG(hw, MANC, manc);
702 if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) {
703 e1000_phy_init_script(hw);
705 /* Configure activity LED after PHY reset */
706 led_ctrl = E1000_READ_REG(hw, LEDCTL);
707 led_ctrl &= IGP_ACTIVITY_LED_MASK;
708 led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE);
709 E1000_WRITE_REG(hw, LEDCTL, led_ctrl);
712 /* Clear interrupt mask to stop board from generating interrupts */
713 DEBUGOUT("Masking off all interrupts\n");
714 E1000_WRITE_REG(hw, IMC, 0xffffffff);
716 /* Clear any pending interrupt events. */
717 icr = E1000_READ_REG(hw, ICR);
719 /* If MWI was previously enabled, reenable it. */
720 if (hw->mac_type == e1000_82542_rev2_0) {
721 if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE)
722 e1000_pci_set_mwi(hw);
725 if (hw->mac_type == e1000_ich8lan) {
726 uint32_t kab = E1000_READ_REG(hw, KABGTXD);
727 kab |= E1000_KABGTXD_BGSQLBIAS;
728 E1000_WRITE_REG(hw, KABGTXD, kab);
731 return E1000_SUCCESS;
734 /******************************************************************************
736 * Initialize a number of hardware-dependent bits
738 * hw: Struct containing variables accessed by shared code
740 * This function contains hardware limitation workarounds for PCI-E adapters
742 *****************************************************************************/
744 e1000_initialize_hardware_bits(struct e1000_hw *hw)
746 if ((hw->mac_type >= e1000_82571) && (!hw->initialize_hw_bits_disable)) {
747 /* Settings common to all PCI-express silicon */
748 uint32_t reg_ctrl, reg_ctrl_ext;
749 uint32_t reg_tarc0, reg_tarc1;
751 uint32_t reg_txdctl, reg_txdctl1;
753 /* link autonegotiation/sync workarounds */
754 reg_tarc0 = E1000_READ_REG(hw, TARC0);
755 reg_tarc0 &= ~((1 << 30)|(1 << 29)|(1 << 28)|(1 << 27));
757 /* Enable not-done TX descriptor counting */
758 reg_txdctl = E1000_READ_REG(hw, TXDCTL);
759 reg_txdctl |= E1000_TXDCTL_COUNT_DESC;
760 E1000_WRITE_REG(hw, TXDCTL, reg_txdctl);
761 reg_txdctl1 = E1000_READ_REG(hw, TXDCTL1);
762 reg_txdctl1 |= E1000_TXDCTL_COUNT_DESC;
763 E1000_WRITE_REG(hw, TXDCTL1, reg_txdctl1);
765 switch (hw->mac_type) {
768 /* Clear PHY TX compatible mode bits */
769 reg_tarc1 = E1000_READ_REG(hw, TARC1);
770 reg_tarc1 &= ~((1 << 30)|(1 << 29));
772 /* link autonegotiation/sync workarounds */
773 reg_tarc0 |= ((1 << 26)|(1 << 25)|(1 << 24)|(1 << 23));
775 /* TX ring control fixes */
776 reg_tarc1 |= ((1 << 26)|(1 << 25)|(1 << 24));
778 /* Multiple read bit is reversed polarity */
779 reg_tctl = E1000_READ_REG(hw, TCTL);
780 if (reg_tctl & E1000_TCTL_MULR)
781 reg_tarc1 &= ~(1 << 28);
783 reg_tarc1 |= (1 << 28);
785 E1000_WRITE_REG(hw, TARC1, reg_tarc1);
788 reg_ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
789 reg_ctrl_ext &= ~(1 << 23);
790 reg_ctrl_ext |= (1 << 22);
792 /* TX byte count fix */
793 reg_ctrl = E1000_READ_REG(hw, CTRL);
794 reg_ctrl &= ~(1 << 29);
796 E1000_WRITE_REG(hw, CTRL_EXT, reg_ctrl_ext);
797 E1000_WRITE_REG(hw, CTRL, reg_ctrl);
799 case e1000_80003es2lan:
800 /* improve small packet performace for fiber/serdes */
801 if ((hw->media_type == e1000_media_type_fiber) ||
802 (hw->media_type == e1000_media_type_internal_serdes)) {
803 reg_tarc0 &= ~(1 << 20);
806 /* Multiple read bit is reversed polarity */
807 reg_tctl = E1000_READ_REG(hw, TCTL);
808 reg_tarc1 = E1000_READ_REG(hw, TARC1);
809 if (reg_tctl & E1000_TCTL_MULR)
810 reg_tarc1 &= ~(1 << 28);
812 reg_tarc1 |= (1 << 28);
814 E1000_WRITE_REG(hw, TARC1, reg_tarc1);
817 /* Reduce concurrent DMA requests to 3 from 4 */
818 if ((hw->revision_id < 3) ||
819 ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) &&
820 (hw->device_id != E1000_DEV_ID_ICH8_IGP_M)))
821 reg_tarc0 |= ((1 << 29)|(1 << 28));
823 reg_ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
824 reg_ctrl_ext |= (1 << 22);
825 E1000_WRITE_REG(hw, CTRL_EXT, reg_ctrl_ext);
827 /* workaround TX hang with TSO=on */
828 reg_tarc0 |= ((1 << 27)|(1 << 26)|(1 << 24)|(1 << 23));
830 /* Multiple read bit is reversed polarity */
831 reg_tctl = E1000_READ_REG(hw, TCTL);
832 reg_tarc1 = E1000_READ_REG(hw, TARC1);
833 if (reg_tctl & E1000_TCTL_MULR)
834 reg_tarc1 &= ~(1 << 28);
836 reg_tarc1 |= (1 << 28);
838 /* workaround TX hang with TSO=on */
839 reg_tarc1 |= ((1 << 30)|(1 << 26)|(1 << 24));
841 E1000_WRITE_REG(hw, TARC1, reg_tarc1);
847 E1000_WRITE_REG(hw, TARC0, reg_tarc0);
851 /******************************************************************************
852 * Performs basic configuration of the adapter.
854 * hw - Struct containing variables accessed by shared code
856 * Assumes that the controller has previously been reset and is in a
857 * post-reset uninitialized state. Initializes the receive address registers,
858 * multicast table, and VLAN filter table. Calls routines to setup link
859 * configuration and flow control settings. Clears all on-chip counters. Leaves
860 * the transmit and receive units disabled and uninitialized.
861 *****************************************************************************/
863 e1000_init_hw(struct e1000_hw *hw)
868 uint16_t pcix_cmd_word;
869 uint16_t pcix_stat_hi_word;
876 DEBUGFUNC("e1000_init_hw");
878 /* force full DMA clock frequency for 10/100 on ICH8 A0-B0 */
879 if ((hw->mac_type == e1000_ich8lan) &&
880 ((hw->revision_id < 3) ||
881 ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) &&
882 (hw->device_id != E1000_DEV_ID_ICH8_IGP_M)))) {
883 reg_data = E1000_READ_REG(hw, STATUS);
884 reg_data &= ~0x80000000;
885 E1000_WRITE_REG(hw, STATUS, reg_data);
888 /* Initialize Identification LED */
889 ret_val = e1000_id_led_init(hw);
891 DEBUGOUT("Error Initializing Identification LED\n");
895 /* Set the media type and TBI compatibility */
896 e1000_set_media_type(hw);
898 /* Must be called after e1000_set_media_type because media_type is used */
899 e1000_initialize_hardware_bits(hw);
901 /* Disabling VLAN filtering. */
902 DEBUGOUT("Initializing the IEEE VLAN\n");
903 /* VET hardcoded to standard value and VFTA removed in ICH8 LAN */
904 if (hw->mac_type != e1000_ich8lan) {
905 if (hw->mac_type < e1000_82545_rev_3)
906 E1000_WRITE_REG(hw, VET, 0);
907 e1000_clear_vfta(hw);
910 /* For 82542 (rev 2.0), disable MWI and put the receiver into reset */
911 if (hw->mac_type == e1000_82542_rev2_0) {
912 DEBUGOUT("Disabling MWI on 82542 rev 2.0\n");
913 e1000_pci_clear_mwi(hw);
914 E1000_WRITE_REG(hw, RCTL, E1000_RCTL_RST);
915 E1000_WRITE_FLUSH(hw);
919 /* Setup the receive address. This involves initializing all of the Receive
920 * Address Registers (RARs 0 - 15).
922 e1000_init_rx_addrs(hw);
924 /* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */
925 if (hw->mac_type == e1000_82542_rev2_0) {
926 E1000_WRITE_REG(hw, RCTL, 0);
927 E1000_WRITE_FLUSH(hw);
929 if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE)
930 e1000_pci_set_mwi(hw);
933 /* Zero out the Multicast HASH table */
934 DEBUGOUT("Zeroing the MTA\n");
935 mta_size = E1000_MC_TBL_SIZE;
936 if (hw->mac_type == e1000_ich8lan)
937 mta_size = E1000_MC_TBL_SIZE_ICH8LAN;
938 for (i = 0; i < mta_size; i++) {
939 E1000_WRITE_REG_ARRAY(hw, MTA, i, 0);
940 /* use write flush to prevent Memory Write Block (MWB) from
941 * occuring when accessing our register space */
942 E1000_WRITE_FLUSH(hw);
945 /* Set the PCI priority bit correctly in the CTRL register. This
946 * determines if the adapter gives priority to receives, or if it
947 * gives equal priority to transmits and receives. Valid only on
948 * 82542 and 82543 silicon.
950 if (hw->dma_fairness && hw->mac_type <= e1000_82543) {
951 ctrl = E1000_READ_REG(hw, CTRL);
952 E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PRIOR);
955 switch (hw->mac_type) {
956 case e1000_82545_rev_3:
957 case e1000_82546_rev_3:
960 /* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */
961 if (hw->bus_type == e1000_bus_type_pcix) {
962 e1000_read_pci_cfg(hw, PCIX_COMMAND_REGISTER, &pcix_cmd_word);
963 e1000_read_pci_cfg(hw, PCIX_STATUS_REGISTER_HI,
965 cmd_mmrbc = (pcix_cmd_word & PCIX_COMMAND_MMRBC_MASK) >>
966 PCIX_COMMAND_MMRBC_SHIFT;
967 stat_mmrbc = (pcix_stat_hi_word & PCIX_STATUS_HI_MMRBC_MASK) >>
968 PCIX_STATUS_HI_MMRBC_SHIFT;
969 if (stat_mmrbc == PCIX_STATUS_HI_MMRBC_4K)
970 stat_mmrbc = PCIX_STATUS_HI_MMRBC_2K;
971 if (cmd_mmrbc > stat_mmrbc) {
972 pcix_cmd_word &= ~PCIX_COMMAND_MMRBC_MASK;
973 pcix_cmd_word |= stat_mmrbc << PCIX_COMMAND_MMRBC_SHIFT;
974 e1000_write_pci_cfg(hw, PCIX_COMMAND_REGISTER,
981 /* More time needed for PHY to initialize */
982 if (hw->mac_type == e1000_ich8lan)
985 /* Call a subroutine to configure the link and setup flow control. */
986 ret_val = e1000_setup_link(hw);
988 /* Set the transmit descriptor write-back policy */
989 if (hw->mac_type > e1000_82544) {
990 ctrl = E1000_READ_REG(hw, TXDCTL);
991 ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB;
992 E1000_WRITE_REG(hw, TXDCTL, ctrl);
995 if (hw->mac_type == e1000_82573) {
996 e1000_enable_tx_pkt_filtering(hw);
999 switch (hw->mac_type) {
1002 case e1000_80003es2lan:
1003 /* Enable retransmit on late collisions */
1004 reg_data = E1000_READ_REG(hw, TCTL);
1005 reg_data |= E1000_TCTL_RTLC;
1006 E1000_WRITE_REG(hw, TCTL, reg_data);
1008 /* Configure Gigabit Carry Extend Padding */
1009 reg_data = E1000_READ_REG(hw, TCTL_EXT);
1010 reg_data &= ~E1000_TCTL_EXT_GCEX_MASK;
1011 reg_data |= DEFAULT_80003ES2LAN_TCTL_EXT_GCEX;
1012 E1000_WRITE_REG(hw, TCTL_EXT, reg_data);
1014 /* Configure Transmit Inter-Packet Gap */
1015 reg_data = E1000_READ_REG(hw, TIPG);
1016 reg_data &= ~E1000_TIPG_IPGT_MASK;
1017 reg_data |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000;
1018 E1000_WRITE_REG(hw, TIPG, reg_data);
1020 reg_data = E1000_READ_REG_ARRAY(hw, FFLT, 0x0001);
1021 reg_data &= ~0x00100000;
1022 E1000_WRITE_REG_ARRAY(hw, FFLT, 0x0001, reg_data);
1027 ctrl = E1000_READ_REG(hw, TXDCTL1);
1028 ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB;
1029 E1000_WRITE_REG(hw, TXDCTL1, ctrl);
1034 if (hw->mac_type == e1000_82573) {
1035 uint32_t gcr = E1000_READ_REG(hw, GCR);
1036 gcr |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX;
1037 E1000_WRITE_REG(hw, GCR, gcr);
1040 /* Clear all of the statistics registers (clear on read). It is
1041 * important that we do this after we have tried to establish link
1042 * because the symbol error count will increment wildly if there
1045 e1000_clear_hw_cntrs(hw);
1047 /* ICH8 No-snoop bits are opposite polarity.
1048 * Set to snoop by default after reset. */
1049 if (hw->mac_type == e1000_ich8lan)
1050 e1000_set_pci_ex_no_snoop(hw, PCI_EX_82566_SNOOP_ALL);
1052 if (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER ||
1053 hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3) {
1054 ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
1055 /* Relaxed ordering must be disabled to avoid a parity
1056 * error crash in a PCI slot. */
1057 ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
1058 E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
1064 /******************************************************************************
1065 * Adjust SERDES output amplitude based on EEPROM setting.
1067 * hw - Struct containing variables accessed by shared code.
1068 *****************************************************************************/
1070 e1000_adjust_serdes_amplitude(struct e1000_hw *hw)
1072 uint16_t eeprom_data;
1075 DEBUGFUNC("e1000_adjust_serdes_amplitude");
1077 if (hw->media_type != e1000_media_type_internal_serdes)
1078 return E1000_SUCCESS;
1080 switch (hw->mac_type) {
1081 case e1000_82545_rev_3:
1082 case e1000_82546_rev_3:
1085 return E1000_SUCCESS;
1088 ret_val = e1000_read_eeprom(hw, EEPROM_SERDES_AMPLITUDE, 1, &eeprom_data);
1093 if (eeprom_data != EEPROM_RESERVED_WORD) {
1094 /* Adjust SERDES output amplitude only. */
1095 eeprom_data &= EEPROM_SERDES_AMPLITUDE_MASK;
1096 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_EXT_CTRL, eeprom_data);
1101 return E1000_SUCCESS;
1104 /******************************************************************************
1105 * Configures flow control and link settings.
1107 * hw - Struct containing variables accessed by shared code
1109 * Determines which flow control settings to use. Calls the apropriate media-
1110 * specific link configuration function. Configures the flow control settings.
1111 * Assuming the adapter has a valid link partner, a valid link should be
1112 * established. Assumes the hardware has previously been reset and the
1113 * transmitter and receiver are not enabled.
1114 *****************************************************************************/
1116 e1000_setup_link(struct e1000_hw *hw)
1120 uint16_t eeprom_data;
1122 DEBUGFUNC("e1000_setup_link");
1124 /* In the case of the phy reset being blocked, we already have a link.
1125 * We do not have to set it up again. */
1126 if (e1000_check_phy_reset_block(hw))
1127 return E1000_SUCCESS;
1129 /* Read and store word 0x0F of the EEPROM. This word contains bits
1130 * that determine the hardware's default PAUSE (flow control) mode,
1131 * a bit that determines whether the HW defaults to enabling or
1132 * disabling auto-negotiation, and the direction of the
1133 * SW defined pins. If there is no SW over-ride of the flow
1134 * control setting, then the variable hw->fc will
1135 * be initialized based on a value in the EEPROM.
1137 if (hw->fc == E1000_FC_DEFAULT) {
1138 switch (hw->mac_type) {
1141 hw->fc = E1000_FC_FULL;
1144 ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG,
1147 DEBUGOUT("EEPROM Read Error\n");
1148 return -E1000_ERR_EEPROM;
1150 if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == 0)
1151 hw->fc = E1000_FC_NONE;
1152 else if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) ==
1153 EEPROM_WORD0F_ASM_DIR)
1154 hw->fc = E1000_FC_TX_PAUSE;
1156 hw->fc = E1000_FC_FULL;
1161 /* We want to save off the original Flow Control configuration just
1162 * in case we get disconnected and then reconnected into a different
1163 * hub or switch with different Flow Control capabilities.
1165 if (hw->mac_type == e1000_82542_rev2_0)
1166 hw->fc &= (~E1000_FC_TX_PAUSE);
1168 if ((hw->mac_type < e1000_82543) && (hw->report_tx_early == 1))
1169 hw->fc &= (~E1000_FC_RX_PAUSE);
1171 hw->original_fc = hw->fc;
1173 DEBUGOUT1("After fix-ups FlowControl is now = %x\n", hw->fc);
1175 /* Take the 4 bits from EEPROM word 0x0F that determine the initial
1176 * polarity value for the SW controlled pins, and setup the
1177 * Extended Device Control reg with that info.
1178 * This is needed because one of the SW controlled pins is used for
1179 * signal detection. So this should be done before e1000_setup_pcs_link()
1180 * or e1000_phy_setup() is called.
1182 if (hw->mac_type == e1000_82543) {
1183 ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG,
1186 DEBUGOUT("EEPROM Read Error\n");
1187 return -E1000_ERR_EEPROM;
1189 ctrl_ext = ((eeprom_data & EEPROM_WORD0F_SWPDIO_EXT) <<
1191 E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
1194 /* Call the necessary subroutine to configure the link. */
1195 ret_val = (hw->media_type == e1000_media_type_copper) ?
1196 e1000_setup_copper_link(hw) :
1197 e1000_setup_fiber_serdes_link(hw);
1199 /* Initialize the flow control address, type, and PAUSE timer
1200 * registers to their default values. This is done even if flow
1201 * control is disabled, because it does not hurt anything to
1202 * initialize these registers.
1204 DEBUGOUT("Initializing the Flow Control address, type and timer regs\n");
1206 /* FCAL/H and FCT are hardcoded to standard values in e1000_ich8lan. */
1207 if (hw->mac_type != e1000_ich8lan) {
1208 E1000_WRITE_REG(hw, FCT, FLOW_CONTROL_TYPE);
1209 E1000_WRITE_REG(hw, FCAH, FLOW_CONTROL_ADDRESS_HIGH);
1210 E1000_WRITE_REG(hw, FCAL, FLOW_CONTROL_ADDRESS_LOW);
1213 E1000_WRITE_REG(hw, FCTTV, hw->fc_pause_time);
1215 /* Set the flow control receive threshold registers. Normally,
1216 * these registers will be set to a default threshold that may be
1217 * adjusted later by the driver's runtime code. However, if the
1218 * ability to transmit pause frames in not enabled, then these
1219 * registers will be set to 0.
1221 if (!(hw->fc & E1000_FC_TX_PAUSE)) {
1222 E1000_WRITE_REG(hw, FCRTL, 0);
1223 E1000_WRITE_REG(hw, FCRTH, 0);
1225 /* We need to set up the Receive Threshold high and low water marks
1226 * as well as (optionally) enabling the transmission of XON frames.
1228 if (hw->fc_send_xon) {
1229 E1000_WRITE_REG(hw, FCRTL, (hw->fc_low_water | E1000_FCRTL_XONE));
1230 E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water);
1232 E1000_WRITE_REG(hw, FCRTL, hw->fc_low_water);
1233 E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water);
1239 /******************************************************************************
1240 * Sets up link for a fiber based or serdes based adapter
1242 * hw - Struct containing variables accessed by shared code
1244 * Manipulates Physical Coding Sublayer functions in order to configure
1245 * link. Assumes the hardware has been previously reset and the transmitter
1246 * and receiver are not enabled.
1247 *****************************************************************************/
1249 e1000_setup_fiber_serdes_link(struct e1000_hw *hw)
1255 uint32_t signal = 0;
1258 DEBUGFUNC("e1000_setup_fiber_serdes_link");
1260 /* On 82571 and 82572 Fiber connections, SerDes loopback mode persists
1261 * until explicitly turned off or a power cycle is performed. A read to
1262 * the register does not indicate its status. Therefore, we ensure
1263 * loopback mode is disabled during initialization.
1265 if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572)
1266 E1000_WRITE_REG(hw, SCTL, E1000_DISABLE_SERDES_LOOPBACK);
1268 /* On adapters with a MAC newer than 82544, SWDP 1 will be
1269 * set when the optics detect a signal. On older adapters, it will be
1270 * cleared when there is a signal. This applies to fiber media only.
1271 * If we're on serdes media, adjust the output amplitude to value
1272 * set in the EEPROM.
1274 ctrl = E1000_READ_REG(hw, CTRL);
1275 if (hw->media_type == e1000_media_type_fiber)
1276 signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0;
1278 ret_val = e1000_adjust_serdes_amplitude(hw);
1282 /* Take the link out of reset */
1283 ctrl &= ~(E1000_CTRL_LRST);
1285 /* Adjust VCO speed to improve BER performance */
1286 ret_val = e1000_set_vco_speed(hw);
1290 e1000_config_collision_dist(hw);
1292 /* Check for a software override of the flow control settings, and setup
1293 * the device accordingly. If auto-negotiation is enabled, then software
1294 * will have to set the "PAUSE" bits to the correct value in the Tranmsit
1295 * Config Word Register (TXCW) and re-start auto-negotiation. However, if
1296 * auto-negotiation is disabled, then software will have to manually
1297 * configure the two flow control enable bits in the CTRL register.
1299 * The possible values of the "fc" parameter are:
1300 * 0: Flow control is completely disabled
1301 * 1: Rx flow control is enabled (we can receive pause frames, but
1302 * not send pause frames).
1303 * 2: Tx flow control is enabled (we can send pause frames but we do
1304 * not support receiving pause frames).
1305 * 3: Both Rx and TX flow control (symmetric) are enabled.
1309 /* Flow control is completely disabled by a software over-ride. */
1310 txcw = (E1000_TXCW_ANE | E1000_TXCW_FD);
1312 case E1000_FC_RX_PAUSE:
1313 /* RX Flow control is enabled and TX Flow control is disabled by a
1314 * software over-ride. Since there really isn't a way to advertise
1315 * that we are capable of RX Pause ONLY, we will advertise that we
1316 * support both symmetric and asymmetric RX PAUSE. Later, we will
1317 * disable the adapter's ability to send PAUSE frames.
1319 txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
1321 case E1000_FC_TX_PAUSE:
1322 /* TX Flow control is enabled, and RX Flow control is disabled, by a
1323 * software over-ride.
1325 txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR);
1328 /* Flow control (both RX and TX) is enabled by a software over-ride. */
1329 txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK);
1332 DEBUGOUT("Flow control param set incorrectly\n");
1333 return -E1000_ERR_CONFIG;
1337 /* Since auto-negotiation is enabled, take the link out of reset (the link
1338 * will be in reset, because we previously reset the chip). This will
1339 * restart auto-negotiation. If auto-neogtiation is successful then the
1340 * link-up status bit will be set and the flow control enable bits (RFCE
1341 * and TFCE) will be set according to their negotiated value.
1343 DEBUGOUT("Auto-negotiation enabled\n");
1345 E1000_WRITE_REG(hw, TXCW, txcw);
1346 E1000_WRITE_REG(hw, CTRL, ctrl);
1347 E1000_WRITE_FLUSH(hw);
1352 /* If we have a signal (the cable is plugged in) then poll for a "Link-Up"
1353 * indication in the Device Status Register. Time-out if a link isn't
1354 * seen in 500 milliseconds seconds (Auto-negotiation should complete in
1355 * less than 500 milliseconds even if the other end is doing it in SW).
1356 * For internal serdes, we just assume a signal is present, then poll.
1358 if (hw->media_type == e1000_media_type_internal_serdes ||
1359 (E1000_READ_REG(hw, CTRL) & E1000_CTRL_SWDPIN1) == signal) {
1360 DEBUGOUT("Looking for Link\n");
1361 for (i = 0; i < (LINK_UP_TIMEOUT / 10); i++) {
1363 status = E1000_READ_REG(hw, STATUS);
1364 if (status & E1000_STATUS_LU) break;
1366 if (i == (LINK_UP_TIMEOUT / 10)) {
1367 DEBUGOUT("Never got a valid link from auto-neg!!!\n");
1368 hw->autoneg_failed = 1;
1369 /* AutoNeg failed to achieve a link, so we'll call
1370 * e1000_check_for_link. This routine will force the link up if
1371 * we detect a signal. This will allow us to communicate with
1372 * non-autonegotiating link partners.
1374 ret_val = e1000_check_for_link(hw);
1376 DEBUGOUT("Error while checking for link\n");
1379 hw->autoneg_failed = 0;
1381 hw->autoneg_failed = 0;
1382 DEBUGOUT("Valid Link Found\n");
1385 DEBUGOUT("No Signal Detected\n");
1387 return E1000_SUCCESS;
1390 /******************************************************************************
1391 * Make sure we have a valid PHY and change PHY mode before link setup.
1393 * hw - Struct containing variables accessed by shared code
1394 ******************************************************************************/
1396 e1000_copper_link_preconfig(struct e1000_hw *hw)
1402 DEBUGFUNC("e1000_copper_link_preconfig");
1404 ctrl = E1000_READ_REG(hw, CTRL);
1405 /* With 82543, we need to force speed and duplex on the MAC equal to what
1406 * the PHY speed and duplex configuration is. In addition, we need to
1407 * perform a hardware reset on the PHY to take it out of reset.
1409 if (hw->mac_type > e1000_82543) {
1410 ctrl |= E1000_CTRL_SLU;
1411 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1412 E1000_WRITE_REG(hw, CTRL, ctrl);
1414 ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU);
1415 E1000_WRITE_REG(hw, CTRL, ctrl);
1416 ret_val = e1000_phy_hw_reset(hw);
1421 /* Make sure we have a valid PHY */
1422 ret_val = e1000_detect_gig_phy(hw);
1424 DEBUGOUT("Error, did not detect valid phy.\n");
1427 DEBUGOUT1("Phy ID = %x \n", hw->phy_id);
1429 /* Set PHY to class A mode (if necessary) */
1430 ret_val = e1000_set_phy_mode(hw);
1434 if ((hw->mac_type == e1000_82545_rev_3) ||
1435 (hw->mac_type == e1000_82546_rev_3)) {
1436 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
1437 phy_data |= 0x00000008;
1438 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
1441 if (hw->mac_type <= e1000_82543 ||
1442 hw->mac_type == e1000_82541 || hw->mac_type == e1000_82547 ||
1443 hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2)
1444 hw->phy_reset_disable = FALSE;
1446 return E1000_SUCCESS;
1450 /********************************************************************
1451 * Copper link setup for e1000_phy_igp series.
1453 * hw - Struct containing variables accessed by shared code
1454 *********************************************************************/
1456 e1000_copper_link_igp_setup(struct e1000_hw *hw)
1462 DEBUGFUNC("e1000_copper_link_igp_setup");
1464 if (hw->phy_reset_disable)
1465 return E1000_SUCCESS;
1467 ret_val = e1000_phy_reset(hw);
1469 DEBUGOUT("Error Resetting the PHY\n");
1473 /* Wait 15ms for MAC to configure PHY from eeprom settings */
1475 if (hw->mac_type != e1000_ich8lan) {
1476 /* Configure activity LED after PHY reset */
1477 led_ctrl = E1000_READ_REG(hw, LEDCTL);
1478 led_ctrl &= IGP_ACTIVITY_LED_MASK;
1479 led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE);
1480 E1000_WRITE_REG(hw, LEDCTL, led_ctrl);
1483 /* The NVM settings will configure LPLU in D3 for IGP2 and IGP3 PHYs */
1484 if (hw->phy_type == e1000_phy_igp) {
1485 /* disable lplu d3 during driver init */
1486 ret_val = e1000_set_d3_lplu_state(hw, FALSE);
1488 DEBUGOUT("Error Disabling LPLU D3\n");
1493 /* disable lplu d0 during driver init */
1494 ret_val = e1000_set_d0_lplu_state(hw, FALSE);
1496 DEBUGOUT("Error Disabling LPLU D0\n");
1499 /* Configure mdi-mdix settings */
1500 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data);
1504 if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) {
1505 hw->dsp_config_state = e1000_dsp_config_disabled;
1506 /* Force MDI for earlier revs of the IGP PHY */
1507 phy_data &= ~(IGP01E1000_PSCR_AUTO_MDIX | IGP01E1000_PSCR_FORCE_MDI_MDIX);
1511 hw->dsp_config_state = e1000_dsp_config_enabled;
1512 phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX;
1516 phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX;
1519 phy_data |= IGP01E1000_PSCR_FORCE_MDI_MDIX;
1523 phy_data |= IGP01E1000_PSCR_AUTO_MDIX;
1527 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data);
1531 /* set auto-master slave resolution settings */
1533 e1000_ms_type phy_ms_setting = hw->master_slave;
1535 if (hw->ffe_config_state == e1000_ffe_config_active)
1536 hw->ffe_config_state = e1000_ffe_config_enabled;
1538 if (hw->dsp_config_state == e1000_dsp_config_activated)
1539 hw->dsp_config_state = e1000_dsp_config_enabled;
1541 /* when autonegotiation advertisment is only 1000Mbps then we
1542 * should disable SmartSpeed and enable Auto MasterSlave
1543 * resolution as hardware default. */
1544 if (hw->autoneg_advertised == ADVERTISE_1000_FULL) {
1545 /* Disable SmartSpeed */
1546 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
1550 phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED;
1551 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
1555 /* Set auto Master/Slave resolution process */
1556 ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data);
1559 phy_data &= ~CR_1000T_MS_ENABLE;
1560 ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data);
1565 ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data);
1569 /* load defaults for future use */
1570 hw->original_master_slave = (phy_data & CR_1000T_MS_ENABLE) ?
1571 ((phy_data & CR_1000T_MS_VALUE) ?
1572 e1000_ms_force_master :
1573 e1000_ms_force_slave) :
1576 switch (phy_ms_setting) {
1577 case e1000_ms_force_master:
1578 phy_data |= (CR_1000T_MS_ENABLE | CR_1000T_MS_VALUE);
1580 case e1000_ms_force_slave:
1581 phy_data |= CR_1000T_MS_ENABLE;
1582 phy_data &= ~(CR_1000T_MS_VALUE);
1585 phy_data &= ~CR_1000T_MS_ENABLE;
1589 ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data);
1594 return E1000_SUCCESS;
1597 /********************************************************************
1598 * Copper link setup for e1000_phy_gg82563 series.
1600 * hw - Struct containing variables accessed by shared code
1601 *********************************************************************/
1603 e1000_copper_link_ggp_setup(struct e1000_hw *hw)
1609 DEBUGFUNC("e1000_copper_link_ggp_setup");
1611 if (!hw->phy_reset_disable) {
1613 /* Enable CRS on TX for half-duplex operation. */
1614 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL,
1619 phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
1620 /* Use 25MHz for both link down and 1000BASE-T for Tx clock */
1621 phy_data |= GG82563_MSCR_TX_CLK_1000MBPS_25MHZ;
1623 ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL,
1629 * MDI/MDI-X = 0 (default)
1630 * 0 - Auto for all speeds
1633 * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
1635 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL, &phy_data);
1639 phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK;
1643 phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDI;
1646 phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDIX;
1650 phy_data |= GG82563_PSCR_CROSSOVER_MODE_AUTO;
1655 * disable_polarity_correction = 0 (default)
1656 * Automatic Correction for Reversed Cable Polarity
1660 phy_data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
1661 if (hw->disable_polarity_correction == 1)
1662 phy_data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
1663 ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL, phy_data);
1668 /* SW Reset the PHY so all changes take effect */
1669 ret_val = e1000_phy_reset(hw);
1671 DEBUGOUT("Error Resetting the PHY\n");
1674 } /* phy_reset_disable */
1676 if (hw->mac_type == e1000_80003es2lan) {
1677 /* Bypass RX and TX FIFO's */
1678 ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL,
1679 E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS |
1680 E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS);
1684 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, &phy_data);
1688 phy_data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG;
1689 ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, phy_data);
1694 reg_data = E1000_READ_REG(hw, CTRL_EXT);
1695 reg_data &= ~(E1000_CTRL_EXT_LINK_MODE_MASK);
1696 E1000_WRITE_REG(hw, CTRL_EXT, reg_data);
1698 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL,
1703 /* Do not init these registers when the HW is in IAMT mode, since the
1704 * firmware will have already initialized them. We only initialize
1705 * them if the HW is not in IAMT mode.
1707 if (e1000_check_mng_mode(hw) == FALSE) {
1708 /* Enable Electrical Idle on the PHY */
1709 phy_data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE;
1710 ret_val = e1000_write_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL,
1715 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL,
1720 phy_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1721 ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL,
1728 /* Workaround: Disable padding in Kumeran interface in the MAC
1729 * and in the PHY to avoid CRC errors.
1731 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_INBAND_CTRL,
1735 phy_data |= GG82563_ICR_DIS_PADDING;
1736 ret_val = e1000_write_phy_reg(hw, GG82563_PHY_INBAND_CTRL,
1742 return E1000_SUCCESS;
1745 /********************************************************************
1746 * Copper link setup for e1000_phy_m88 series.
1748 * hw - Struct containing variables accessed by shared code
1749 *********************************************************************/
1751 e1000_copper_link_mgp_setup(struct e1000_hw *hw)
1756 DEBUGFUNC("e1000_copper_link_mgp_setup");
1758 if (hw->phy_reset_disable)
1759 return E1000_SUCCESS;
1761 /* Enable CRS on TX. This must be set for half-duplex operation. */
1762 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
1766 phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
1769 * MDI/MDI-X = 0 (default)
1770 * 0 - Auto for all speeds
1773 * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
1775 phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
1779 phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE;
1782 phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE;
1785 phy_data |= M88E1000_PSCR_AUTO_X_1000T;
1789 phy_data |= M88E1000_PSCR_AUTO_X_MODE;
1794 * disable_polarity_correction = 0 (default)
1795 * Automatic Correction for Reversed Cable Polarity
1799 phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL;
1800 if (hw->disable_polarity_correction == 1)
1801 phy_data |= M88E1000_PSCR_POLARITY_REVERSAL;
1802 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
1806 if (hw->phy_revision < M88E1011_I_REV_4) {
1807 /* Force TX_CLK in the Extended PHY Specific Control Register
1810 ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data);
1814 phy_data |= M88E1000_EPSCR_TX_CLK_25;
1816 if ((hw->phy_revision == E1000_REVISION_2) &&
1817 (hw->phy_id == M88E1111_I_PHY_ID)) {
1818 /* Vidalia Phy, set the downshift counter to 5x */
1819 phy_data &= ~(M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK);
1820 phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X;
1821 ret_val = e1000_write_phy_reg(hw,
1822 M88E1000_EXT_PHY_SPEC_CTRL, phy_data);
1826 /* Configure Master and Slave downshift values */
1827 phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK |
1828 M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK);
1829 phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X |
1830 M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X);
1831 ret_val = e1000_write_phy_reg(hw,
1832 M88E1000_EXT_PHY_SPEC_CTRL, phy_data);
1838 /* SW Reset the PHY so all changes take effect */
1839 ret_val = e1000_phy_reset(hw);
1841 DEBUGOUT("Error Resetting the PHY\n");
1845 return E1000_SUCCESS;
1848 /********************************************************************
1849 * Setup auto-negotiation and flow control advertisements,
1850 * and then perform auto-negotiation.
1852 * hw - Struct containing variables accessed by shared code
1853 *********************************************************************/
1855 e1000_copper_link_autoneg(struct e1000_hw *hw)
1860 DEBUGFUNC("e1000_copper_link_autoneg");
1862 /* Perform some bounds checking on the hw->autoneg_advertised
1863 * parameter. If this variable is zero, then set it to the default.
1865 hw->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT;
1867 /* If autoneg_advertised is zero, we assume it was not defaulted
1868 * by the calling code so we set to advertise full capability.
1870 if (hw->autoneg_advertised == 0)
1871 hw->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT;
1873 /* IFE phy only supports 10/100 */
1874 if (hw->phy_type == e1000_phy_ife)
1875 hw->autoneg_advertised &= AUTONEG_ADVERTISE_10_100_ALL;
1877 DEBUGOUT("Reconfiguring auto-neg advertisement params\n");
1878 ret_val = e1000_phy_setup_autoneg(hw);
1880 DEBUGOUT("Error Setting up Auto-Negotiation\n");
1883 DEBUGOUT("Restarting Auto-Neg\n");
1885 /* Restart auto-negotiation by setting the Auto Neg Enable bit and
1886 * the Auto Neg Restart bit in the PHY control register.
1888 ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data);
1892 phy_data |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG);
1893 ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data);
1897 /* Does the user want to wait for Auto-Neg to complete here, or
1898 * check at a later time (for example, callback routine).
1900 if (hw->wait_autoneg_complete) {
1901 ret_val = e1000_wait_autoneg(hw);
1903 DEBUGOUT("Error while waiting for autoneg to complete\n");
1908 hw->get_link_status = TRUE;
1910 return E1000_SUCCESS;
1913 /******************************************************************************
1914 * Config the MAC and the PHY after link is up.
1915 * 1) Set up the MAC to the current PHY speed/duplex
1916 * if we are on 82543. If we
1917 * are on newer silicon, we only need to configure
1918 * collision distance in the Transmit Control Register.
1919 * 2) Set up flow control on the MAC to that established with
1921 * 3) Config DSP to improve Gigabit link quality for some PHY revisions.
1923 * hw - Struct containing variables accessed by shared code
1924 ******************************************************************************/
1926 e1000_copper_link_postconfig(struct e1000_hw *hw)
1929 DEBUGFUNC("e1000_copper_link_postconfig");
1931 if (hw->mac_type >= e1000_82544) {
1932 e1000_config_collision_dist(hw);
1934 ret_val = e1000_config_mac_to_phy(hw);
1936 DEBUGOUT("Error configuring MAC to PHY settings\n");
1940 ret_val = e1000_config_fc_after_link_up(hw);
1942 DEBUGOUT("Error Configuring Flow Control\n");
1946 /* Config DSP to improve Giga link quality */
1947 if (hw->phy_type == e1000_phy_igp) {
1948 ret_val = e1000_config_dsp_after_link_change(hw, TRUE);
1950 DEBUGOUT("Error Configuring DSP after link up\n");
1955 return E1000_SUCCESS;
1958 /******************************************************************************
1959 * Detects which PHY is present and setup the speed and duplex
1961 * hw - Struct containing variables accessed by shared code
1962 ******************************************************************************/
1964 e1000_setup_copper_link(struct e1000_hw *hw)
1971 DEBUGFUNC("e1000_setup_copper_link");
1973 switch (hw->mac_type) {
1974 case e1000_80003es2lan:
1976 /* Set the mac to wait the maximum time between each
1977 * iteration and increase the max iterations when
1978 * polling the phy; this fixes erroneous timeouts at 10Mbps. */
1979 ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF);
1982 ret_val = e1000_read_kmrn_reg(hw, GG82563_REG(0x34, 9), ®_data);
1986 ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 9), reg_data);
1993 /* Check if it is a valid PHY and set PHY mode if necessary. */
1994 ret_val = e1000_copper_link_preconfig(hw);
1998 switch (hw->mac_type) {
1999 case e1000_80003es2lan:
2000 /* Kumeran registers are written-only */
2001 reg_data = E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT;
2002 reg_data |= E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING;
2003 ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_INB_CTRL,
2012 if (hw->phy_type == e1000_phy_igp ||
2013 hw->phy_type == e1000_phy_igp_3 ||
2014 hw->phy_type == e1000_phy_igp_2) {
2015 ret_val = e1000_copper_link_igp_setup(hw);
2018 } else if (hw->phy_type == e1000_phy_m88) {
2019 ret_val = e1000_copper_link_mgp_setup(hw);
2022 } else if (hw->phy_type == e1000_phy_gg82563) {
2023 ret_val = e1000_copper_link_ggp_setup(hw);
2029 /* Setup autoneg and flow control advertisement
2030 * and perform autonegotiation */
2031 ret_val = e1000_copper_link_autoneg(hw);
2035 /* PHY will be set to 10H, 10F, 100H,or 100F
2036 * depending on value from forced_speed_duplex. */
2037 DEBUGOUT("Forcing speed and duplex\n");
2038 ret_val = e1000_phy_force_speed_duplex(hw);
2040 DEBUGOUT("Error Forcing Speed and Duplex\n");
2045 /* Check link status. Wait up to 100 microseconds for link to become
2048 for (i = 0; i < 10; i++) {
2049 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
2052 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
2056 if (phy_data & MII_SR_LINK_STATUS) {
2057 /* Config the MAC and PHY after link is up */
2058 ret_val = e1000_copper_link_postconfig(hw);
2062 DEBUGOUT("Valid link established!!!\n");
2063 return E1000_SUCCESS;
2068 DEBUGOUT("Unable to establish link!!!\n");
2069 return E1000_SUCCESS;
2072 /******************************************************************************
2073 * Configure the MAC-to-PHY interface for 10/100Mbps
2075 * hw - Struct containing variables accessed by shared code
2076 ******************************************************************************/
2078 e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, uint16_t duplex)
2080 int32_t ret_val = E1000_SUCCESS;
2084 DEBUGFUNC("e1000_configure_kmrn_for_10_100");
2086 reg_data = E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT;
2087 ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL,
2092 /* Configure Transmit Inter-Packet Gap */
2093 tipg = E1000_READ_REG(hw, TIPG);
2094 tipg &= ~E1000_TIPG_IPGT_MASK;
2095 tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_10_100;
2096 E1000_WRITE_REG(hw, TIPG, tipg);
2098 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data);
2103 if (duplex == HALF_DUPLEX)
2104 reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER;
2106 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
2108 ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
2114 e1000_configure_kmrn_for_1000(struct e1000_hw *hw)
2116 int32_t ret_val = E1000_SUCCESS;
2120 DEBUGFUNC("e1000_configure_kmrn_for_1000");
2122 reg_data = E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT;
2123 ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL,
2128 /* Configure Transmit Inter-Packet Gap */
2129 tipg = E1000_READ_REG(hw, TIPG);
2130 tipg &= ~E1000_TIPG_IPGT_MASK;
2131 tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000;
2132 E1000_WRITE_REG(hw, TIPG, tipg);
2134 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data);
2139 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
2140 ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
2145 /******************************************************************************
2146 * Configures PHY autoneg and flow control advertisement settings
2148 * hw - Struct containing variables accessed by shared code
2149 ******************************************************************************/
2151 e1000_phy_setup_autoneg(struct e1000_hw *hw)
2154 uint16_t mii_autoneg_adv_reg;
2155 uint16_t mii_1000t_ctrl_reg;
2157 DEBUGFUNC("e1000_phy_setup_autoneg");
2159 /* Read the MII Auto-Neg Advertisement Register (Address 4). */
2160 ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg);
2164 if (hw->phy_type != e1000_phy_ife) {
2165 /* Read the MII 1000Base-T Control Register (Address 9). */
2166 ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &mii_1000t_ctrl_reg);
2170 mii_1000t_ctrl_reg=0;
2172 /* Need to parse both autoneg_advertised and fc and set up
2173 * the appropriate PHY registers. First we will parse for
2174 * autoneg_advertised software override. Since we can advertise
2175 * a plethora of combinations, we need to check each bit
2179 /* First we clear all the 10/100 mb speed bits in the Auto-Neg
2180 * Advertisement Register (Address 4) and the 1000 mb speed bits in
2181 * the 1000Base-T Control Register (Address 9).
2183 mii_autoneg_adv_reg &= ~REG4_SPEED_MASK;
2184 mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK;
2186 DEBUGOUT1("autoneg_advertised %x\n", hw->autoneg_advertised);
2188 /* Do we want to advertise 10 Mb Half Duplex? */
2189 if (hw->autoneg_advertised & ADVERTISE_10_HALF) {
2190 DEBUGOUT("Advertise 10mb Half duplex\n");
2191 mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS;
2194 /* Do we want to advertise 10 Mb Full Duplex? */
2195 if (hw->autoneg_advertised & ADVERTISE_10_FULL) {
2196 DEBUGOUT("Advertise 10mb Full duplex\n");
2197 mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS;
2200 /* Do we want to advertise 100 Mb Half Duplex? */
2201 if (hw->autoneg_advertised & ADVERTISE_100_HALF) {
2202 DEBUGOUT("Advertise 100mb Half duplex\n");
2203 mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS;
2206 /* Do we want to advertise 100 Mb Full Duplex? */
2207 if (hw->autoneg_advertised & ADVERTISE_100_FULL) {
2208 DEBUGOUT("Advertise 100mb Full duplex\n");
2209 mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS;
2212 /* We do not allow the Phy to advertise 1000 Mb Half Duplex */
2213 if (hw->autoneg_advertised & ADVERTISE_1000_HALF) {
2214 DEBUGOUT("Advertise 1000mb Half duplex requested, request denied!\n");
2217 /* Do we want to advertise 1000 Mb Full Duplex? */
2218 if (hw->autoneg_advertised & ADVERTISE_1000_FULL) {
2219 DEBUGOUT("Advertise 1000mb Full duplex\n");
2220 mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS;
2221 if (hw->phy_type == e1000_phy_ife) {
2222 DEBUGOUT("e1000_phy_ife is a 10/100 PHY. Gigabit speed is not supported.\n");
2226 /* Check for a software override of the flow control settings, and
2227 * setup the PHY advertisement registers accordingly. If
2228 * auto-negotiation is enabled, then software will have to set the
2229 * "PAUSE" bits to the correct value in the Auto-Negotiation
2230 * Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation.
2232 * The possible values of the "fc" parameter are:
2233 * 0: Flow control is completely disabled
2234 * 1: Rx flow control is enabled (we can receive pause frames
2235 * but not send pause frames).
2236 * 2: Tx flow control is enabled (we can send pause frames
2237 * but we do not support receiving pause frames).
2238 * 3: Both Rx and TX flow control (symmetric) are enabled.
2239 * other: No software override. The flow control configuration
2240 * in the EEPROM is used.
2243 case E1000_FC_NONE: /* 0 */
2244 /* Flow control (RX & TX) is completely disabled by a
2245 * software over-ride.
2247 mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE);
2249 case E1000_FC_RX_PAUSE: /* 1 */
2250 /* RX Flow control is enabled, and TX Flow control is
2251 * disabled, by a software over-ride.
2253 /* Since there really isn't a way to advertise that we are
2254 * capable of RX Pause ONLY, we will advertise that we
2255 * support both symmetric and asymmetric RX PAUSE. Later
2256 * (in e1000_config_fc_after_link_up) we will disable the
2257 *hw's ability to send PAUSE frames.
2259 mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE);
2261 case E1000_FC_TX_PAUSE: /* 2 */
2262 /* TX Flow control is enabled, and RX Flow control is
2263 * disabled, by a software over-ride.
2265 mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR;
2266 mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE;
2268 case E1000_FC_FULL: /* 3 */
2269 /* Flow control (both RX and TX) is enabled by a software
2272 mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE);
2275 DEBUGOUT("Flow control param set incorrectly\n");
2276 return -E1000_ERR_CONFIG;
2279 ret_val = e1000_write_phy_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg);
2283 DEBUGOUT1("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg);
2285 if (hw->phy_type != e1000_phy_ife) {
2286 ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, mii_1000t_ctrl_reg);
2291 return E1000_SUCCESS;
2294 /******************************************************************************
2295 * Force PHY speed and duplex settings to hw->forced_speed_duplex
2297 * hw - Struct containing variables accessed by shared code
2298 ******************************************************************************/
2300 e1000_phy_force_speed_duplex(struct e1000_hw *hw)
2304 uint16_t mii_ctrl_reg;
2305 uint16_t mii_status_reg;
2309 DEBUGFUNC("e1000_phy_force_speed_duplex");
2311 /* Turn off Flow control if we are forcing speed and duplex. */
2312 hw->fc = E1000_FC_NONE;
2314 DEBUGOUT1("hw->fc = %d\n", hw->fc);
2316 /* Read the Device Control Register. */
2317 ctrl = E1000_READ_REG(hw, CTRL);
2319 /* Set the bits to Force Speed and Duplex in the Device Ctrl Reg. */
2320 ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
2321 ctrl &= ~(DEVICE_SPEED_MASK);
2323 /* Clear the Auto Speed Detect Enable bit. */
2324 ctrl &= ~E1000_CTRL_ASDE;
2326 /* Read the MII Control Register. */
2327 ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &mii_ctrl_reg);
2331 /* We need to disable autoneg in order to force link and duplex. */
2333 mii_ctrl_reg &= ~MII_CR_AUTO_NEG_EN;
2335 /* Are we forcing Full or Half Duplex? */
2336 if (hw->forced_speed_duplex == e1000_100_full ||
2337 hw->forced_speed_duplex == e1000_10_full) {
2338 /* We want to force full duplex so we SET the full duplex bits in the
2339 * Device and MII Control Registers.
2341 ctrl |= E1000_CTRL_FD;
2342 mii_ctrl_reg |= MII_CR_FULL_DUPLEX;
2343 DEBUGOUT("Full Duplex\n");
2345 /* We want to force half duplex so we CLEAR the full duplex bits in
2346 * the Device and MII Control Registers.
2348 ctrl &= ~E1000_CTRL_FD;
2349 mii_ctrl_reg &= ~MII_CR_FULL_DUPLEX;
2350 DEBUGOUT("Half Duplex\n");
2353 /* Are we forcing 100Mbps??? */
2354 if (hw->forced_speed_duplex == e1000_100_full ||
2355 hw->forced_speed_duplex == e1000_100_half) {
2356 /* Set the 100Mb bit and turn off the 1000Mb and 10Mb bits. */
2357 ctrl |= E1000_CTRL_SPD_100;
2358 mii_ctrl_reg |= MII_CR_SPEED_100;
2359 mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_10);
2360 DEBUGOUT("Forcing 100mb ");
2362 /* Set the 10Mb bit and turn off the 1000Mb and 100Mb bits. */
2363 ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
2364 mii_ctrl_reg |= MII_CR_SPEED_10;
2365 mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_100);
2366 DEBUGOUT("Forcing 10mb ");
2369 e1000_config_collision_dist(hw);
2371 /* Write the configured values back to the Device Control Reg. */
2372 E1000_WRITE_REG(hw, CTRL, ctrl);
2374 if ((hw->phy_type == e1000_phy_m88) ||
2375 (hw->phy_type == e1000_phy_gg82563)) {
2376 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
2380 /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI
2381 * forced whenever speed are duplex are forced.
2383 phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
2384 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
2388 DEBUGOUT1("M88E1000 PSCR: %x \n", phy_data);
2390 /* Need to reset the PHY or these changes will be ignored */
2391 mii_ctrl_reg |= MII_CR_RESET;
2393 /* Disable MDI-X support for 10/100 */
2394 } else if (hw->phy_type == e1000_phy_ife) {
2395 ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data);
2399 phy_data &= ~IFE_PMC_AUTO_MDIX;
2400 phy_data &= ~IFE_PMC_FORCE_MDIX;
2402 ret_val = e1000_write_phy_reg(hw, IFE_PHY_MDIX_CONTROL, phy_data);
2407 /* Clear Auto-Crossover to force MDI manually. IGP requires MDI
2408 * forced whenever speed or duplex are forced.
2410 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data);
2414 phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX;
2415 phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX;
2417 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data);
2422 /* Write back the modified PHY MII control register. */
2423 ret_val = e1000_write_phy_reg(hw, PHY_CTRL, mii_ctrl_reg);
2429 /* The wait_autoneg_complete flag may be a little misleading here.
2430 * Since we are forcing speed and duplex, Auto-Neg is not enabled.
2431 * But we do want to delay for a period while forcing only so we
2432 * don't generate false No Link messages. So we will wait here
2433 * only if the user has set wait_autoneg_complete to 1, which is
2436 if (hw->wait_autoneg_complete) {
2437 /* We will wait for autoneg to complete. */
2438 DEBUGOUT("Waiting for forced speed/duplex link.\n");
2441 /* We will wait for autoneg to complete or 4.5 seconds to expire. */
2442 for (i = PHY_FORCE_TIME; i > 0; i--) {
2443 /* Read the MII Status Register and wait for Auto-Neg Complete bit
2446 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
2450 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
2454 if (mii_status_reg & MII_SR_LINK_STATUS) break;
2458 ((hw->phy_type == e1000_phy_m88) ||
2459 (hw->phy_type == e1000_phy_gg82563))) {
2460 /* We didn't get link. Reset the DSP and wait again for link. */
2461 ret_val = e1000_phy_reset_dsp(hw);
2463 DEBUGOUT("Error Resetting PHY DSP\n");
2467 /* This loop will early-out if the link condition has been met. */
2468 for (i = PHY_FORCE_TIME; i > 0; i--) {
2469 if (mii_status_reg & MII_SR_LINK_STATUS) break;
2471 /* Read the MII Status Register and wait for Auto-Neg Complete bit
2474 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
2478 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
2484 if (hw->phy_type == e1000_phy_m88) {
2485 /* Because we reset the PHY above, we need to re-force TX_CLK in the
2486 * Extended PHY Specific Control Register to 25MHz clock. This value
2487 * defaults back to a 2.5MHz clock when the PHY is reset.
2489 ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data);
2493 phy_data |= M88E1000_EPSCR_TX_CLK_25;
2494 ret_val = e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data);
2498 /* In addition, because of the s/w reset above, we need to enable CRS on
2499 * TX. This must be set for both full and half duplex operation.
2501 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
2505 phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX;
2506 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
2510 if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) &&
2511 (!hw->autoneg) && (hw->forced_speed_duplex == e1000_10_full ||
2512 hw->forced_speed_duplex == e1000_10_half)) {
2513 ret_val = e1000_polarity_reversal_workaround(hw);
2517 } else if (hw->phy_type == e1000_phy_gg82563) {
2518 /* The TX_CLK of the Extended PHY Specific Control Register defaults
2519 * to 2.5MHz on a reset. We need to re-force it back to 25MHz, if
2520 * we're not in a forced 10/duplex configuration. */
2521 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data);
2525 phy_data &= ~GG82563_MSCR_TX_CLK_MASK;
2526 if ((hw->forced_speed_duplex == e1000_10_full) ||
2527 (hw->forced_speed_duplex == e1000_10_half))
2528 phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5MHZ;
2530 phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25MHZ;
2532 /* Also due to the reset, we need to enable CRS on Tx. */
2533 phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
2535 ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data);
2539 return E1000_SUCCESS;
2542 /******************************************************************************
2543 * Sets the collision distance in the Transmit Control register
2545 * hw - Struct containing variables accessed by shared code
2547 * Link should have been established previously. Reads the speed and duplex
2548 * information from the Device Status register.
2549 ******************************************************************************/
2551 e1000_config_collision_dist(struct e1000_hw *hw)
2553 uint32_t tctl, coll_dist;
2555 DEBUGFUNC("e1000_config_collision_dist");
2557 if (hw->mac_type < e1000_82543)
2558 coll_dist = E1000_COLLISION_DISTANCE_82542;
2560 coll_dist = E1000_COLLISION_DISTANCE;
2562 tctl = E1000_READ_REG(hw, TCTL);
2564 tctl &= ~E1000_TCTL_COLD;
2565 tctl |= coll_dist << E1000_COLD_SHIFT;
2567 E1000_WRITE_REG(hw, TCTL, tctl);
2568 E1000_WRITE_FLUSH(hw);
2571 /******************************************************************************
2572 * Sets MAC speed and duplex settings to reflect the those in the PHY
2574 * hw - Struct containing variables accessed by shared code
2575 * mii_reg - data to write to the MII control register
2577 * The contents of the PHY register containing the needed information need to
2579 ******************************************************************************/
2581 e1000_config_mac_to_phy(struct e1000_hw *hw)
2587 DEBUGFUNC("e1000_config_mac_to_phy");
2589 /* 82544 or newer MAC, Auto Speed Detection takes care of
2590 * MAC speed/duplex configuration.*/
2591 if (hw->mac_type >= e1000_82544)
2592 return E1000_SUCCESS;
2594 /* Read the Device Control Register and set the bits to Force Speed
2597 ctrl = E1000_READ_REG(hw, CTRL);
2598 ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
2599 ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS);
2601 /* Set up duplex in the Device Control and Transmit Control
2602 * registers depending on negotiated values.
2604 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
2608 if (phy_data & M88E1000_PSSR_DPLX)
2609 ctrl |= E1000_CTRL_FD;
2611 ctrl &= ~E1000_CTRL_FD;
2613 e1000_config_collision_dist(hw);
2615 /* Set up speed in the Device Control register depending on
2616 * negotiated values.
2618 if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS)
2619 ctrl |= E1000_CTRL_SPD_1000;
2620 else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS)
2621 ctrl |= E1000_CTRL_SPD_100;
2623 /* Write the configured values back to the Device Control Reg. */
2624 E1000_WRITE_REG(hw, CTRL, ctrl);
2625 return E1000_SUCCESS;
2628 /******************************************************************************
2629 * Forces the MAC's flow control settings.
2631 * hw - Struct containing variables accessed by shared code
2633 * Sets the TFCE and RFCE bits in the device control register to reflect
2634 * the adapter settings. TFCE and RFCE need to be explicitly set by
2635 * software when a Copper PHY is used because autonegotiation is managed
2636 * by the PHY rather than the MAC. Software must also configure these
2637 * bits when link is forced on a fiber connection.
2638 *****************************************************************************/
2640 e1000_force_mac_fc(struct e1000_hw *hw)
2644 DEBUGFUNC("e1000_force_mac_fc");
2646 /* Get the current configuration of the Device Control Register */
2647 ctrl = E1000_READ_REG(hw, CTRL);
2649 /* Because we didn't get link via the internal auto-negotiation
2650 * mechanism (we either forced link or we got link via PHY
2651 * auto-neg), we have to manually enable/disable transmit an
2652 * receive flow control.
2654 * The "Case" statement below enables/disable flow control
2655 * according to the "hw->fc" parameter.
2657 * The possible values of the "fc" parameter are:
2658 * 0: Flow control is completely disabled
2659 * 1: Rx flow control is enabled (we can receive pause
2660 * frames but not send pause frames).
2661 * 2: Tx flow control is enabled (we can send pause frames
2662 * frames but we do not receive pause frames).
2663 * 3: Both Rx and TX flow control (symmetric) is enabled.
2664 * other: No other values should be possible at this point.
2669 ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE));
2671 case E1000_FC_RX_PAUSE:
2672 ctrl &= (~E1000_CTRL_TFCE);
2673 ctrl |= E1000_CTRL_RFCE;
2675 case E1000_FC_TX_PAUSE:
2676 ctrl &= (~E1000_CTRL_RFCE);
2677 ctrl |= E1000_CTRL_TFCE;
2680 ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE);
2683 DEBUGOUT("Flow control param set incorrectly\n");
2684 return -E1000_ERR_CONFIG;
2687 /* Disable TX Flow Control for 82542 (rev 2.0) */
2688 if (hw->mac_type == e1000_82542_rev2_0)
2689 ctrl &= (~E1000_CTRL_TFCE);
2691 E1000_WRITE_REG(hw, CTRL, ctrl);
2692 return E1000_SUCCESS;
2695 /******************************************************************************
2696 * Configures flow control settings after link is established
2698 * hw - Struct containing variables accessed by shared code
2700 * Should be called immediately after a valid link has been established.
2701 * Forces MAC flow control settings if link was forced. When in MII/GMII mode
2702 * and autonegotiation is enabled, the MAC flow control settings will be set
2703 * based on the flow control negotiated by the PHY. In TBI mode, the TFCE
2704 * and RFCE bits will be automaticaly set to the negotiated flow control mode.
2705 *****************************************************************************/
2707 e1000_config_fc_after_link_up(struct e1000_hw *hw)
2710 uint16_t mii_status_reg;
2711 uint16_t mii_nway_adv_reg;
2712 uint16_t mii_nway_lp_ability_reg;
2716 DEBUGFUNC("e1000_config_fc_after_link_up");
2718 /* Check for the case where we have fiber media and auto-neg failed
2719 * so we had to force link. In this case, we need to force the
2720 * configuration of the MAC to match the "fc" parameter.
2722 if (((hw->media_type == e1000_media_type_fiber) && (hw->autoneg_failed)) ||
2723 ((hw->media_type == e1000_media_type_internal_serdes) &&
2724 (hw->autoneg_failed)) ||
2725 ((hw->media_type == e1000_media_type_copper) && (!hw->autoneg))) {
2726 ret_val = e1000_force_mac_fc(hw);
2728 DEBUGOUT("Error forcing flow control settings\n");
2733 /* Check for the case where we have copper media and auto-neg is
2734 * enabled. In this case, we need to check and see if Auto-Neg
2735 * has completed, and if so, how the PHY and link partner has
2736 * flow control configured.
2738 if ((hw->media_type == e1000_media_type_copper) && hw->autoneg) {
2739 /* Read the MII Status Register and check to see if AutoNeg
2740 * has completed. We read this twice because this reg has
2741 * some "sticky" (latched) bits.
2743 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
2746 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
2750 if (mii_status_reg & MII_SR_AUTONEG_COMPLETE) {
2751 /* The AutoNeg process has completed, so we now need to
2752 * read both the Auto Negotiation Advertisement Register
2753 * (Address 4) and the Auto_Negotiation Base Page Ability
2754 * Register (Address 5) to determine how flow control was
2757 ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV,
2761 ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY,
2762 &mii_nway_lp_ability_reg);
2766 /* Two bits in the Auto Negotiation Advertisement Register
2767 * (Address 4) and two bits in the Auto Negotiation Base
2768 * Page Ability Register (Address 5) determine flow control
2769 * for both the PHY and the link partner. The following
2770 * table, taken out of the IEEE 802.3ab/D6.0 dated March 25,
2771 * 1999, describes these PAUSE resolution bits and how flow
2772 * control is determined based upon these settings.
2773 * NOTE: DC = Don't Care
2775 * LOCAL DEVICE | LINK PARTNER
2776 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution
2777 *-------|---------|-------|---------|--------------------
2778 * 0 | 0 | DC | DC | E1000_FC_NONE
2779 * 0 | 1 | 0 | DC | E1000_FC_NONE
2780 * 0 | 1 | 1 | 0 | E1000_FC_NONE
2781 * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE
2782 * 1 | 0 | 0 | DC | E1000_FC_NONE
2783 * 1 | DC | 1 | DC | E1000_FC_FULL
2784 * 1 | 1 | 0 | 0 | E1000_FC_NONE
2785 * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE
2788 /* Are both PAUSE bits set to 1? If so, this implies
2789 * Symmetric Flow Control is enabled at both ends. The
2790 * ASM_DIR bits are irrelevant per the spec.
2792 * For Symmetric Flow Control:
2794 * LOCAL DEVICE | LINK PARTNER
2795 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
2796 *-------|---------|-------|---------|--------------------
2797 * 1 | DC | 1 | DC | E1000_FC_FULL
2800 if ((mii_nway_adv_reg & NWAY_AR_PAUSE) &&
2801 (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) {
2802 /* Now we need to check if the user selected RX ONLY
2803 * of pause frames. In this case, we had to advertise
2804 * FULL flow control because we could not advertise RX
2805 * ONLY. Hence, we must now check to see if we need to
2806 * turn OFF the TRANSMISSION of PAUSE frames.
2808 if (hw->original_fc == E1000_FC_FULL) {
2809 hw->fc = E1000_FC_FULL;
2810 DEBUGOUT("Flow Control = FULL.\n");
2812 hw->fc = E1000_FC_RX_PAUSE;
2813 DEBUGOUT("Flow Control = RX PAUSE frames only.\n");
2816 /* For receiving PAUSE frames ONLY.
2818 * LOCAL DEVICE | LINK PARTNER
2819 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
2820 *-------|---------|-------|---------|--------------------
2821 * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE
2824 else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) &&
2825 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
2826 (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
2827 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
2828 hw->fc = E1000_FC_TX_PAUSE;
2829 DEBUGOUT("Flow Control = TX PAUSE frames only.\n");
2831 /* For transmitting PAUSE frames ONLY.
2833 * LOCAL DEVICE | LINK PARTNER
2834 * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result
2835 *-------|---------|-------|---------|--------------------
2836 * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE
2839 else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) &&
2840 (mii_nway_adv_reg & NWAY_AR_ASM_DIR) &&
2841 !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) &&
2842 (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) {
2843 hw->fc = E1000_FC_RX_PAUSE;
2844 DEBUGOUT("Flow Control = RX PAUSE frames only.\n");
2846 /* Per the IEEE spec, at this point flow control should be
2847 * disabled. However, we want to consider that we could
2848 * be connected to a legacy switch that doesn't advertise
2849 * desired flow control, but can be forced on the link
2850 * partner. So if we advertised no flow control, that is
2851 * what we will resolve to. If we advertised some kind of
2852 * receive capability (Rx Pause Only or Full Flow Control)
2853 * and the link partner advertised none, we will configure
2854 * ourselves to enable Rx Flow Control only. We can do
2855 * this safely for two reasons: If the link partner really
2856 * didn't want flow control enabled, and we enable Rx, no
2857 * harm done since we won't be receiving any PAUSE frames
2858 * anyway. If the intent on the link partner was to have
2859 * flow control enabled, then by us enabling RX only, we
2860 * can at least receive pause frames and process them.
2861 * This is a good idea because in most cases, since we are
2862 * predominantly a server NIC, more times than not we will
2863 * be asked to delay transmission of packets than asking
2864 * our link partner to pause transmission of frames.
2866 else if ((hw->original_fc == E1000_FC_NONE ||
2867 hw->original_fc == E1000_FC_TX_PAUSE) ||
2868 hw->fc_strict_ieee) {
2869 hw->fc = E1000_FC_NONE;
2870 DEBUGOUT("Flow Control = NONE.\n");
2872 hw->fc = E1000_FC_RX_PAUSE;
2873 DEBUGOUT("Flow Control = RX PAUSE frames only.\n");
2876 /* Now we need to do one last check... If we auto-
2877 * negotiated to HALF DUPLEX, flow control should not be
2878 * enabled per IEEE 802.3 spec.
2880 ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex);
2882 DEBUGOUT("Error getting link speed and duplex\n");
2886 if (duplex == HALF_DUPLEX)
2887 hw->fc = E1000_FC_NONE;
2889 /* Now we call a subroutine to actually force the MAC
2890 * controller to use the correct flow control settings.
2892 ret_val = e1000_force_mac_fc(hw);
2894 DEBUGOUT("Error forcing flow control settings\n");
2898 DEBUGOUT("Copper PHY and Auto Neg has not completed.\n");
2901 return E1000_SUCCESS;
2904 /******************************************************************************
2905 * Checks to see if the link status of the hardware has changed.
2907 * hw - Struct containing variables accessed by shared code
2909 * Called by any function that needs to check the link status of the adapter.
2910 *****************************************************************************/
2912 e1000_check_for_link(struct e1000_hw *hw)
2919 uint32_t signal = 0;
2923 DEBUGFUNC("e1000_check_for_link");
2925 ctrl = E1000_READ_REG(hw, CTRL);
2926 status = E1000_READ_REG(hw, STATUS);
2928 /* On adapters with a MAC newer than 82544, SW Defineable pin 1 will be
2929 * set when the optics detect a signal. On older adapters, it will be
2930 * cleared when there is a signal. This applies to fiber media only.
2932 if ((hw->media_type == e1000_media_type_fiber) ||
2933 (hw->media_type == e1000_media_type_internal_serdes)) {
2934 rxcw = E1000_READ_REG(hw, RXCW);
2936 if (hw->media_type == e1000_media_type_fiber) {
2937 signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0;
2938 if (status & E1000_STATUS_LU)
2939 hw->get_link_status = FALSE;
2943 /* If we have a copper PHY then we only want to go out to the PHY
2944 * registers to see if Auto-Neg has completed and/or if our link
2945 * status has changed. The get_link_status flag will be set if we
2946 * receive a Link Status Change interrupt or we have Rx Sequence
2949 if ((hw->media_type == e1000_media_type_copper) && hw->get_link_status) {
2950 /* First we want to see if the MII Status Register reports
2951 * link. If so, then we want to get the current speed/duplex
2953 * Read the register twice since the link bit is sticky.
2955 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
2958 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
2962 if (phy_data & MII_SR_LINK_STATUS) {
2963 hw->get_link_status = FALSE;
2964 /* Check if there was DownShift, must be checked immediately after
2966 e1000_check_downshift(hw);
2968 /* If we are on 82544 or 82543 silicon and speed/duplex
2969 * are forced to 10H or 10F, then we will implement the polarity
2970 * reversal workaround. We disable interrupts first, and upon
2971 * returning, place the devices interrupt state to its previous
2972 * value except for the link status change interrupt which will
2973 * happen due to the execution of this workaround.
2976 if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) &&
2978 (hw->forced_speed_duplex == e1000_10_full ||
2979 hw->forced_speed_duplex == e1000_10_half)) {
2980 E1000_WRITE_REG(hw, IMC, 0xffffffff);
2981 ret_val = e1000_polarity_reversal_workaround(hw);
2982 icr = E1000_READ_REG(hw, ICR);
2983 E1000_WRITE_REG(hw, ICS, (icr & ~E1000_ICS_LSC));
2984 E1000_WRITE_REG(hw, IMS, IMS_ENABLE_MASK);
2988 /* No link detected */
2989 e1000_config_dsp_after_link_change(hw, FALSE);
2993 /* If we are forcing speed/duplex, then we simply return since
2994 * we have already determined whether we have link or not.
2996 if (!hw->autoneg) return -E1000_ERR_CONFIG;
2998 /* optimize the dsp settings for the igp phy */
2999 e1000_config_dsp_after_link_change(hw, TRUE);
3001 /* We have a M88E1000 PHY and Auto-Neg is enabled. If we
3002 * have Si on board that is 82544 or newer, Auto
3003 * Speed Detection takes care of MAC speed/duplex
3004 * configuration. So we only need to configure Collision
3005 * Distance in the MAC. Otherwise, we need to force
3006 * speed/duplex on the MAC to the current PHY speed/duplex
3009 if (hw->mac_type >= e1000_82544)
3010 e1000_config_collision_dist(hw);
3012 ret_val = e1000_config_mac_to_phy(hw);
3014 DEBUGOUT("Error configuring MAC to PHY settings\n");
3019 /* Configure Flow Control now that Auto-Neg has completed. First, we
3020 * need to restore the desired flow control settings because we may
3021 * have had to re-autoneg with a different link partner.
3023 ret_val = e1000_config_fc_after_link_up(hw);
3025 DEBUGOUT("Error configuring flow control\n");
3029 /* At this point we know that we are on copper and we have
3030 * auto-negotiated link. These are conditions for checking the link
3031 * partner capability register. We use the link speed to determine if
3032 * TBI compatibility needs to be turned on or off. If the link is not
3033 * at gigabit speed, then TBI compatibility is not needed. If we are
3034 * at gigabit speed, we turn on TBI compatibility.
3036 if (hw->tbi_compatibility_en) {
3037 uint16_t speed, duplex;
3038 ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex);
3040 DEBUGOUT("Error getting link speed and duplex\n");
3043 if (speed != SPEED_1000) {
3044 /* If link speed is not set to gigabit speed, we do not need
3045 * to enable TBI compatibility.
3047 if (hw->tbi_compatibility_on) {
3048 /* If we previously were in the mode, turn it off. */
3049 rctl = E1000_READ_REG(hw, RCTL);
3050 rctl &= ~E1000_RCTL_SBP;
3051 E1000_WRITE_REG(hw, RCTL, rctl);
3052 hw->tbi_compatibility_on = FALSE;
3055 /* If TBI compatibility is was previously off, turn it on. For
3056 * compatibility with a TBI link partner, we will store bad
3057 * packets. Some frames have an additional byte on the end and
3058 * will look like CRC errors to to the hardware.
3060 if (!hw->tbi_compatibility_on) {
3061 hw->tbi_compatibility_on = TRUE;
3062 rctl = E1000_READ_REG(hw, RCTL);
3063 rctl |= E1000_RCTL_SBP;
3064 E1000_WRITE_REG(hw, RCTL, rctl);
3069 /* If we don't have link (auto-negotiation failed or link partner cannot
3070 * auto-negotiate), the cable is plugged in (we have signal), and our
3071 * link partner is not trying to auto-negotiate with us (we are receiving
3072 * idles or data), we need to force link up. We also need to give
3073 * auto-negotiation time to complete, in case the cable was just plugged
3074 * in. The autoneg_failed flag does this.
3076 else if ((((hw->media_type == e1000_media_type_fiber) &&
3077 ((ctrl & E1000_CTRL_SWDPIN1) == signal)) ||
3078 (hw->media_type == e1000_media_type_internal_serdes)) &&
3079 (!(status & E1000_STATUS_LU)) &&
3080 (!(rxcw & E1000_RXCW_C))) {
3081 if (hw->autoneg_failed == 0) {
3082 hw->autoneg_failed = 1;
3085 DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n");
3087 /* Disable auto-negotiation in the TXCW register */
3088 E1000_WRITE_REG(hw, TXCW, (hw->txcw & ~E1000_TXCW_ANE));
3090 /* Force link-up and also force full-duplex. */
3091 ctrl = E1000_READ_REG(hw, CTRL);
3092 ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD);
3093 E1000_WRITE_REG(hw, CTRL, ctrl);
3095 /* Configure Flow Control after forcing link up. */
3096 ret_val = e1000_config_fc_after_link_up(hw);
3098 DEBUGOUT("Error configuring flow control\n");
3102 /* If we are forcing link and we are receiving /C/ ordered sets, re-enable
3103 * auto-negotiation in the TXCW register and disable forced link in the
3104 * Device Control register in an attempt to auto-negotiate with our link
3107 else if (((hw->media_type == e1000_media_type_fiber) ||
3108 (hw->media_type == e1000_media_type_internal_serdes)) &&
3109 (ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) {
3110 DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n");
3111 E1000_WRITE_REG(hw, TXCW, hw->txcw);
3112 E1000_WRITE_REG(hw, CTRL, (ctrl & ~E1000_CTRL_SLU));
3114 hw->serdes_link_down = FALSE;
3116 /* If we force link for non-auto-negotiation switch, check link status
3117 * based on MAC synchronization for internal serdes media type.
3119 else if ((hw->media_type == e1000_media_type_internal_serdes) &&
3120 !(E1000_TXCW_ANE & E1000_READ_REG(hw, TXCW))) {
3121 /* SYNCH bit and IV bit are sticky. */
3123 if (E1000_RXCW_SYNCH & E1000_READ_REG(hw, RXCW)) {
3124 if (!(rxcw & E1000_RXCW_IV)) {
3125 hw->serdes_link_down = FALSE;
3126 DEBUGOUT("SERDES: Link is up.\n");
3129 hw->serdes_link_down = TRUE;
3130 DEBUGOUT("SERDES: Link is down.\n");
3133 if ((hw->media_type == e1000_media_type_internal_serdes) &&
3134 (E1000_TXCW_ANE & E1000_READ_REG(hw, TXCW))) {
3135 hw->serdes_link_down = !(E1000_STATUS_LU & E1000_READ_REG(hw, STATUS));
3137 return E1000_SUCCESS;
3140 /******************************************************************************
3141 * Detects the current speed and duplex settings of the hardware.
3143 * hw - Struct containing variables accessed by shared code
3144 * speed - Speed of the connection
3145 * duplex - Duplex setting of the connection
3146 *****************************************************************************/
3148 e1000_get_speed_and_duplex(struct e1000_hw *hw,
3156 DEBUGFUNC("e1000_get_speed_and_duplex");
3158 if (hw->mac_type >= e1000_82543) {
3159 status = E1000_READ_REG(hw, STATUS);
3160 if (status & E1000_STATUS_SPEED_1000) {
3161 *speed = SPEED_1000;
3162 DEBUGOUT("1000 Mbs, ");
3163 } else if (status & E1000_STATUS_SPEED_100) {
3165 DEBUGOUT("100 Mbs, ");
3168 DEBUGOUT("10 Mbs, ");
3171 if (status & E1000_STATUS_FD) {
3172 *duplex = FULL_DUPLEX;
3173 DEBUGOUT("Full Duplex\n");
3175 *duplex = HALF_DUPLEX;
3176 DEBUGOUT(" Half Duplex\n");
3179 DEBUGOUT("1000 Mbs, Full Duplex\n");
3180 *speed = SPEED_1000;
3181 *duplex = FULL_DUPLEX;
3184 /* IGP01 PHY may advertise full duplex operation after speed downgrade even
3185 * if it is operating at half duplex. Here we set the duplex settings to
3186 * match the duplex in the link partner's capabilities.
3188 if (hw->phy_type == e1000_phy_igp && hw->speed_downgraded) {
3189 ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_EXP, &phy_data);
3193 if (!(phy_data & NWAY_ER_LP_NWAY_CAPS))
3194 *duplex = HALF_DUPLEX;
3196 ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, &phy_data);
3199 if ((*speed == SPEED_100 && !(phy_data & NWAY_LPAR_100TX_FD_CAPS)) ||
3200 (*speed == SPEED_10 && !(phy_data & NWAY_LPAR_10T_FD_CAPS)))
3201 *duplex = HALF_DUPLEX;
3205 if ((hw->mac_type == e1000_80003es2lan) &&
3206 (hw->media_type == e1000_media_type_copper)) {
3207 if (*speed == SPEED_1000)
3208 ret_val = e1000_configure_kmrn_for_1000(hw);
3210 ret_val = e1000_configure_kmrn_for_10_100(hw, *duplex);
3215 if ((hw->phy_type == e1000_phy_igp_3) && (*speed == SPEED_1000)) {
3216 ret_val = e1000_kumeran_lock_loss_workaround(hw);
3221 return E1000_SUCCESS;
3224 /******************************************************************************
3225 * Blocks until autoneg completes or times out (~4.5 seconds)
3227 * hw - Struct containing variables accessed by shared code
3228 ******************************************************************************/
3230 e1000_wait_autoneg(struct e1000_hw *hw)
3236 DEBUGFUNC("e1000_wait_autoneg");
3237 DEBUGOUT("Waiting for Auto-Neg to complete.\n");
3239 /* We will wait for autoneg to complete or 4.5 seconds to expire. */
3240 for (i = PHY_AUTO_NEG_TIME; i > 0; i--) {
3241 /* Read the MII Status Register and wait for Auto-Neg
3242 * Complete bit to be set.
3244 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
3247 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
3250 if (phy_data & MII_SR_AUTONEG_COMPLETE) {
3251 return E1000_SUCCESS;
3255 return E1000_SUCCESS;
3258 /******************************************************************************
3259 * Raises the Management Data Clock
3261 * hw - Struct containing variables accessed by shared code
3262 * ctrl - Device control register's current value
3263 ******************************************************************************/
3265 e1000_raise_mdi_clk(struct e1000_hw *hw,
3268 /* Raise the clock input to the Management Data Clock (by setting the MDC
3269 * bit), and then delay 10 microseconds.
3271 E1000_WRITE_REG(hw, CTRL, (*ctrl | E1000_CTRL_MDC));
3272 E1000_WRITE_FLUSH(hw);
3276 /******************************************************************************
3277 * Lowers the Management Data Clock
3279 * hw - Struct containing variables accessed by shared code
3280 * ctrl - Device control register's current value
3281 ******************************************************************************/
3283 e1000_lower_mdi_clk(struct e1000_hw *hw,
3286 /* Lower the clock input to the Management Data Clock (by clearing the MDC
3287 * bit), and then delay 10 microseconds.
3289 E1000_WRITE_REG(hw, CTRL, (*ctrl & ~E1000_CTRL_MDC));
3290 E1000_WRITE_FLUSH(hw);
3294 /******************************************************************************
3295 * Shifts data bits out to the PHY
3297 * hw - Struct containing variables accessed by shared code
3298 * data - Data to send out to the PHY
3299 * count - Number of bits to shift out
3301 * Bits are shifted out in MSB to LSB order.
3302 ******************************************************************************/
3304 e1000_shift_out_mdi_bits(struct e1000_hw *hw,
3311 /* We need to shift "count" number of bits out to the PHY. So, the value
3312 * in the "data" parameter will be shifted out to the PHY one bit at a
3313 * time. In order to do this, "data" must be broken down into bits.
3316 mask <<= (count - 1);
3318 ctrl = E1000_READ_REG(hw, CTRL);
3320 /* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */
3321 ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR);
3324 /* A "1" is shifted out to the PHY by setting the MDIO bit to "1" and
3325 * then raising and lowering the Management Data Clock. A "0" is
3326 * shifted out to the PHY by setting the MDIO bit to "0" and then
3327 * raising and lowering the clock.
3330 ctrl |= E1000_CTRL_MDIO;
3332 ctrl &= ~E1000_CTRL_MDIO;
3334 E1000_WRITE_REG(hw, CTRL, ctrl);
3335 E1000_WRITE_FLUSH(hw);
3339 e1000_raise_mdi_clk(hw, &ctrl);
3340 e1000_lower_mdi_clk(hw, &ctrl);
3346 /******************************************************************************
3347 * Shifts data bits in from the PHY
3349 * hw - Struct containing variables accessed by shared code
3351 * Bits are shifted in in MSB to LSB order.
3352 ******************************************************************************/
3354 e1000_shift_in_mdi_bits(struct e1000_hw *hw)
3360 /* In order to read a register from the PHY, we need to shift in a total
3361 * of 18 bits from the PHY. The first two bit (turnaround) times are used
3362 * to avoid contention on the MDIO pin when a read operation is performed.
3363 * These two bits are ignored by us and thrown away. Bits are "shifted in"
3364 * by raising the input to the Management Data Clock (setting the MDC bit),
3365 * and then reading the value of the MDIO bit.
3367 ctrl = E1000_READ_REG(hw, CTRL);
3369 /* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as input. */
3370 ctrl &= ~E1000_CTRL_MDIO_DIR;
3371 ctrl &= ~E1000_CTRL_MDIO;
3373 E1000_WRITE_REG(hw, CTRL, ctrl);
3374 E1000_WRITE_FLUSH(hw);
3376 /* Raise and Lower the clock before reading in the data. This accounts for
3377 * the turnaround bits. The first clock occurred when we clocked out the
3378 * last bit of the Register Address.
3380 e1000_raise_mdi_clk(hw, &ctrl);
3381 e1000_lower_mdi_clk(hw, &ctrl);
3383 for (data = 0, i = 0; i < 16; i++) {
3385 e1000_raise_mdi_clk(hw, &ctrl);
3386 ctrl = E1000_READ_REG(hw, CTRL);
3387 /* Check to see if we shifted in a "1". */
3388 if (ctrl & E1000_CTRL_MDIO)
3390 e1000_lower_mdi_clk(hw, &ctrl);
3393 e1000_raise_mdi_clk(hw, &ctrl);
3394 e1000_lower_mdi_clk(hw, &ctrl);
3400 e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask)
3402 uint32_t swfw_sync = 0;
3403 uint32_t swmask = mask;
3404 uint32_t fwmask = mask << 16;
3405 int32_t timeout = 200;
3407 DEBUGFUNC("e1000_swfw_sync_acquire");
3409 if (hw->swfwhw_semaphore_present)
3410 return e1000_get_software_flag(hw);
3412 if (!hw->swfw_sync_present)
3413 return e1000_get_hw_eeprom_semaphore(hw);
3416 if (e1000_get_hw_eeprom_semaphore(hw))
3417 return -E1000_ERR_SWFW_SYNC;
3419 swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC);
3420 if (!(swfw_sync & (fwmask | swmask))) {
3424 /* firmware currently using resource (fwmask) */
3425 /* or other software thread currently using resource (swmask) */
3426 e1000_put_hw_eeprom_semaphore(hw);
3432 DEBUGOUT("Driver can't access resource, SW_FW_SYNC timeout.\n");
3433 return -E1000_ERR_SWFW_SYNC;
3436 swfw_sync |= swmask;
3437 E1000_WRITE_REG(hw, SW_FW_SYNC, swfw_sync);
3439 e1000_put_hw_eeprom_semaphore(hw);
3440 return E1000_SUCCESS;
3444 e1000_swfw_sync_release(struct e1000_hw *hw, uint16_t mask)
3447 uint32_t swmask = mask;
3449 DEBUGFUNC("e1000_swfw_sync_release");
3451 if (hw->swfwhw_semaphore_present) {
3452 e1000_release_software_flag(hw);
3456 if (!hw->swfw_sync_present) {
3457 e1000_put_hw_eeprom_semaphore(hw);
3461 /* if (e1000_get_hw_eeprom_semaphore(hw))
3462 * return -E1000_ERR_SWFW_SYNC; */
3463 while (e1000_get_hw_eeprom_semaphore(hw) != E1000_SUCCESS);
3466 swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC);
3467 swfw_sync &= ~swmask;
3468 E1000_WRITE_REG(hw, SW_FW_SYNC, swfw_sync);
3470 e1000_put_hw_eeprom_semaphore(hw);
3473 /*****************************************************************************
3474 * Reads the value from a PHY register, if the value is on a specific non zero
3475 * page, sets the page first.
3476 * hw - Struct containing variables accessed by shared code
3477 * reg_addr - address of the PHY register to read
3478 ******************************************************************************/
3480 e1000_read_phy_reg(struct e1000_hw *hw,
3487 DEBUGFUNC("e1000_read_phy_reg");
3489 if ((hw->mac_type == e1000_80003es2lan) &&
3490 (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) {
3491 swfw = E1000_SWFW_PHY1_SM;
3493 swfw = E1000_SWFW_PHY0_SM;
3495 if (e1000_swfw_sync_acquire(hw, swfw))
3496 return -E1000_ERR_SWFW_SYNC;
3498 if ((hw->phy_type == e1000_phy_igp ||
3499 hw->phy_type == e1000_phy_igp_3 ||
3500 hw->phy_type == e1000_phy_igp_2) &&
3501 (reg_addr > MAX_PHY_MULTI_PAGE_REG)) {
3502 ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT,
3503 (uint16_t)reg_addr);
3505 e1000_swfw_sync_release(hw, swfw);
3508 } else if (hw->phy_type == e1000_phy_gg82563) {
3509 if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) ||
3510 (hw->mac_type == e1000_80003es2lan)) {
3511 /* Select Configuration Page */
3512 if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
3513 ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT,
3514 (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT));
3516 /* Use Alternative Page Select register to access
3517 * registers 30 and 31
3519 ret_val = e1000_write_phy_reg_ex(hw,
3520 GG82563_PHY_PAGE_SELECT_ALT,
3521 (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT));
3525 e1000_swfw_sync_release(hw, swfw);
3531 ret_val = e1000_read_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr,
3534 e1000_swfw_sync_release(hw, swfw);
3539 e1000_read_phy_reg_ex(struct e1000_hw *hw, uint32_t reg_addr,
3544 const uint32_t phy_addr = 1;
3546 DEBUGFUNC("e1000_read_phy_reg_ex");
3548 if (reg_addr > MAX_PHY_REG_ADDRESS) {
3549 DEBUGOUT1("PHY Address %d is out of range\n", reg_addr);
3550 return -E1000_ERR_PARAM;
3553 if (hw->mac_type > e1000_82543) {
3554 /* Set up Op-code, Phy Address, and register address in the MDI
3555 * Control register. The MAC will take care of interfacing with the
3556 * PHY to retrieve the desired data.
3558 mdic = ((reg_addr << E1000_MDIC_REG_SHIFT) |
3559 (phy_addr << E1000_MDIC_PHY_SHIFT) |
3560 (E1000_MDIC_OP_READ));
3562 E1000_WRITE_REG(hw, MDIC, mdic);
3564 /* Poll the ready bit to see if the MDI read completed */
3565 for (i = 0; i < 64; i++) {
3567 mdic = E1000_READ_REG(hw, MDIC);
3568 if (mdic & E1000_MDIC_READY) break;
3570 if (!(mdic & E1000_MDIC_READY)) {
3571 DEBUGOUT("MDI Read did not complete\n");
3572 return -E1000_ERR_PHY;
3574 if (mdic & E1000_MDIC_ERROR) {
3575 DEBUGOUT("MDI Error\n");
3576 return -E1000_ERR_PHY;
3578 *phy_data = (uint16_t) mdic;
3580 /* We must first send a preamble through the MDIO pin to signal the
3581 * beginning of an MII instruction. This is done by sending 32
3582 * consecutive "1" bits.
3584 e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE);
3586 /* Now combine the next few fields that are required for a read
3587 * operation. We use this method instead of calling the
3588 * e1000_shift_out_mdi_bits routine five different times. The format of
3589 * a MII read instruction consists of a shift out of 14 bits and is
3590 * defined as follows:
3591 * <Preamble><SOF><Op Code><Phy Addr><Reg Addr>
3592 * followed by a shift in of 18 bits. This first two bits shifted in
3593 * are TurnAround bits used to avoid contention on the MDIO pin when a
3594 * READ operation is performed. These two bits are thrown away
3595 * followed by a shift in of 16 bits which contains the desired data.
3597 mdic = ((reg_addr) | (phy_addr << 5) |
3598 (PHY_OP_READ << 10) | (PHY_SOF << 12));
3600 e1000_shift_out_mdi_bits(hw, mdic, 14);
3602 /* Now that we've shifted out the read command to the MII, we need to
3603 * "shift in" the 16-bit value (18 total bits) of the requested PHY
3606 *phy_data = e1000_shift_in_mdi_bits(hw);
3608 return E1000_SUCCESS;
3611 /******************************************************************************
3612 * Writes a value to a PHY register
3614 * hw - Struct containing variables accessed by shared code
3615 * reg_addr - address of the PHY register to write
3616 * data - data to write to the PHY
3617 ******************************************************************************/
3619 e1000_write_phy_reg(struct e1000_hw *hw, uint32_t reg_addr,
3625 DEBUGFUNC("e1000_write_phy_reg");
3627 if ((hw->mac_type == e1000_80003es2lan) &&
3628 (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) {
3629 swfw = E1000_SWFW_PHY1_SM;
3631 swfw = E1000_SWFW_PHY0_SM;
3633 if (e1000_swfw_sync_acquire(hw, swfw))
3634 return -E1000_ERR_SWFW_SYNC;
3636 if ((hw->phy_type == e1000_phy_igp ||
3637 hw->phy_type == e1000_phy_igp_3 ||
3638 hw->phy_type == e1000_phy_igp_2) &&
3639 (reg_addr > MAX_PHY_MULTI_PAGE_REG)) {
3640 ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT,
3641 (uint16_t)reg_addr);
3643 e1000_swfw_sync_release(hw, swfw);
3646 } else if (hw->phy_type == e1000_phy_gg82563) {
3647 if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) ||
3648 (hw->mac_type == e1000_80003es2lan)) {
3649 /* Select Configuration Page */
3650 if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
3651 ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT,
3652 (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT));
3654 /* Use Alternative Page Select register to access
3655 * registers 30 and 31
3657 ret_val = e1000_write_phy_reg_ex(hw,
3658 GG82563_PHY_PAGE_SELECT_ALT,
3659 (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT));
3663 e1000_swfw_sync_release(hw, swfw);
3669 ret_val = e1000_write_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr,
3672 e1000_swfw_sync_release(hw, swfw);
3677 e1000_write_phy_reg_ex(struct e1000_hw *hw, uint32_t reg_addr,
3682 const uint32_t phy_addr = 1;
3684 DEBUGFUNC("e1000_write_phy_reg_ex");
3686 if (reg_addr > MAX_PHY_REG_ADDRESS) {
3687 DEBUGOUT1("PHY Address %d is out of range\n", reg_addr);
3688 return -E1000_ERR_PARAM;
3691 if (hw->mac_type > e1000_82543) {
3692 /* Set up Op-code, Phy Address, register address, and data intended
3693 * for the PHY register in the MDI Control register. The MAC will take
3694 * care of interfacing with the PHY to send the desired data.
3696 mdic = (((uint32_t) phy_data) |
3697 (reg_addr << E1000_MDIC_REG_SHIFT) |
3698 (phy_addr << E1000_MDIC_PHY_SHIFT) |
3699 (E1000_MDIC_OP_WRITE));
3701 E1000_WRITE_REG(hw, MDIC, mdic);
3703 /* Poll the ready bit to see if the MDI read completed */
3704 for (i = 0; i < 641; i++) {
3706 mdic = E1000_READ_REG(hw, MDIC);
3707 if (mdic & E1000_MDIC_READY) break;
3709 if (!(mdic & E1000_MDIC_READY)) {
3710 DEBUGOUT("MDI Write did not complete\n");
3711 return -E1000_ERR_PHY;
3714 /* We'll need to use the SW defined pins to shift the write command
3715 * out to the PHY. We first send a preamble to the PHY to signal the
3716 * beginning of the MII instruction. This is done by sending 32
3717 * consecutive "1" bits.
3719 e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE);
3721 /* Now combine the remaining required fields that will indicate a
3722 * write operation. We use this method instead of calling the
3723 * e1000_shift_out_mdi_bits routine for each field in the command. The
3724 * format of a MII write instruction is as follows:
3725 * <Preamble><SOF><Op Code><Phy Addr><Reg Addr><Turnaround><Data>.
3727 mdic = ((PHY_TURNAROUND) | (reg_addr << 2) | (phy_addr << 7) |
3728 (PHY_OP_WRITE << 12) | (PHY_SOF << 14));
3730 mdic |= (uint32_t) phy_data;
3732 e1000_shift_out_mdi_bits(hw, mdic, 32);
3735 return E1000_SUCCESS;
3739 e1000_read_kmrn_reg(struct e1000_hw *hw,
3745 DEBUGFUNC("e1000_read_kmrn_reg");
3747 if ((hw->mac_type == e1000_80003es2lan) &&
3748 (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) {
3749 swfw = E1000_SWFW_PHY1_SM;
3751 swfw = E1000_SWFW_PHY0_SM;
3753 if (e1000_swfw_sync_acquire(hw, swfw))
3754 return -E1000_ERR_SWFW_SYNC;
3756 /* Write register address */
3757 reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) &
3758 E1000_KUMCTRLSTA_OFFSET) |
3759 E1000_KUMCTRLSTA_REN;
3760 E1000_WRITE_REG(hw, KUMCTRLSTA, reg_val);
3763 /* Read the data returned */
3764 reg_val = E1000_READ_REG(hw, KUMCTRLSTA);
3765 *data = (uint16_t)reg_val;
3767 e1000_swfw_sync_release(hw, swfw);
3768 return E1000_SUCCESS;
3772 e1000_write_kmrn_reg(struct e1000_hw *hw,
3778 DEBUGFUNC("e1000_write_kmrn_reg");
3780 if ((hw->mac_type == e1000_80003es2lan) &&
3781 (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) {
3782 swfw = E1000_SWFW_PHY1_SM;
3784 swfw = E1000_SWFW_PHY0_SM;
3786 if (e1000_swfw_sync_acquire(hw, swfw))
3787 return -E1000_ERR_SWFW_SYNC;
3789 reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) &
3790 E1000_KUMCTRLSTA_OFFSET) | data;
3791 E1000_WRITE_REG(hw, KUMCTRLSTA, reg_val);
3794 e1000_swfw_sync_release(hw, swfw);
3795 return E1000_SUCCESS;
3798 /******************************************************************************
3799 * Returns the PHY to the power-on reset state
3801 * hw - Struct containing variables accessed by shared code
3802 ******************************************************************************/
3804 e1000_phy_hw_reset(struct e1000_hw *hw)
3806 uint32_t ctrl, ctrl_ext;
3811 DEBUGFUNC("e1000_phy_hw_reset");
3813 /* In the case of the phy reset being blocked, it's not an error, we
3814 * simply return success without performing the reset. */
3815 ret_val = e1000_check_phy_reset_block(hw);
3817 return E1000_SUCCESS;
3819 DEBUGOUT("Resetting Phy...\n");
3821 if (hw->mac_type > e1000_82543) {
3822 if ((hw->mac_type == e1000_80003es2lan) &&
3823 (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) {
3824 swfw = E1000_SWFW_PHY1_SM;
3826 swfw = E1000_SWFW_PHY0_SM;
3828 if (e1000_swfw_sync_acquire(hw, swfw)) {
3829 DEBUGOUT("Unable to acquire swfw sync\n");
3830 return -E1000_ERR_SWFW_SYNC;
3832 /* Read the device control register and assert the E1000_CTRL_PHY_RST
3833 * bit. Then, take it out of reset.
3834 * For pre-e1000_82571 hardware, we delay for 10ms between the assert
3835 * and deassert. For e1000_82571 hardware and later, we instead delay
3836 * for 50us between and 10ms after the deassertion.
3838 ctrl = E1000_READ_REG(hw, CTRL);
3839 E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PHY_RST);
3840 E1000_WRITE_FLUSH(hw);
3842 if (hw->mac_type < e1000_82571)
3847 E1000_WRITE_REG(hw, CTRL, ctrl);
3848 E1000_WRITE_FLUSH(hw);
3850 if (hw->mac_type >= e1000_82571)
3853 e1000_swfw_sync_release(hw, swfw);
3855 /* Read the Extended Device Control Register, assert the PHY_RESET_DIR
3856 * bit to put the PHY into reset. Then, take it out of reset.
3858 ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
3859 ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR;
3860 ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA;
3861 E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
3862 E1000_WRITE_FLUSH(hw);
3864 ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA;
3865 E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
3866 E1000_WRITE_FLUSH(hw);
3870 if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) {
3871 /* Configure activity LED after PHY reset */
3872 led_ctrl = E1000_READ_REG(hw, LEDCTL);
3873 led_ctrl &= IGP_ACTIVITY_LED_MASK;
3874 led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE);
3875 E1000_WRITE_REG(hw, LEDCTL, led_ctrl);
3878 /* Wait for FW to finish PHY configuration. */
3879 ret_val = e1000_get_phy_cfg_done(hw);
3880 if (ret_val != E1000_SUCCESS)
3882 e1000_release_software_semaphore(hw);
3884 if ((hw->mac_type == e1000_ich8lan) && (hw->phy_type == e1000_phy_igp_3))
3885 ret_val = e1000_init_lcd_from_nvm(hw);
3890 /******************************************************************************
3893 * hw - Struct containing variables accessed by shared code
3895 * Sets bit 15 of the MII Control register
3896 ******************************************************************************/
3898 e1000_phy_reset(struct e1000_hw *hw)
3903 DEBUGFUNC("e1000_phy_reset");
3905 /* In the case of the phy reset being blocked, it's not an error, we
3906 * simply return success without performing the reset. */
3907 ret_val = e1000_check_phy_reset_block(hw);
3909 return E1000_SUCCESS;
3911 switch (hw->phy_type) {
3913 case e1000_phy_igp_2:
3914 case e1000_phy_igp_3:
3916 ret_val = e1000_phy_hw_reset(hw);
3921 ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data);
3925 phy_data |= MII_CR_RESET;
3926 ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data);
3934 if (hw->phy_type == e1000_phy_igp || hw->phy_type == e1000_phy_igp_2)
3935 e1000_phy_init_script(hw);
3937 return E1000_SUCCESS;
3940 /******************************************************************************
3941 * Work-around for 82566 power-down: on D3 entry-
3942 * 1) disable gigabit link
3943 * 2) write VR power-down enable
3945 * if successful continue, else issue LCD reset and repeat
3947 * hw - struct containing variables accessed by shared code
3948 ******************************************************************************/
3950 e1000_phy_powerdown_workaround(struct e1000_hw *hw)
3956 DEBUGFUNC("e1000_phy_powerdown_workaround");
3958 if (hw->phy_type != e1000_phy_igp_3)
3963 reg = E1000_READ_REG(hw, PHY_CTRL);
3964 E1000_WRITE_REG(hw, PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE |
3965 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
3967 /* Write VR power-down enable - bits 9:8 should be 10b */
3968 e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data);
3969 phy_data |= (1 << 9);
3970 phy_data &= ~(1 << 8);
3971 e1000_write_phy_reg(hw, IGP3_VR_CTRL, phy_data);
3973 /* Read it back and test */
3974 e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data);
3975 if (((phy_data & IGP3_VR_CTRL_MODE_MASK) == IGP3_VR_CTRL_MODE_SHUT) || retry)
3978 /* Issue PHY reset and repeat at most one more time */
3979 reg = E1000_READ_REG(hw, CTRL);
3980 E1000_WRITE_REG(hw, CTRL, reg | E1000_CTRL_PHY_RST);
3988 /******************************************************************************
3989 * Work-around for 82566 Kumeran PCS lock loss:
3990 * On link status change (i.e. PCI reset, speed change) and link is up and
3992 * 0) if workaround is optionally disabled do nothing
3993 * 1) wait 1ms for Kumeran link to come up
3994 * 2) check Kumeran Diagnostic register PCS lock loss bit
3995 * 3) if not set the link is locked (all is good), otherwise...
3997 * 5) repeat up to 10 times
3998 * Note: this is only called for IGP3 copper when speed is 1gb.
4000 * hw - struct containing variables accessed by shared code
4001 ******************************************************************************/
4003 e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw)
4010 if (hw->kmrn_lock_loss_workaround_disabled)
4011 return E1000_SUCCESS;
4013 /* Make sure link is up before proceeding. If not just return.
4014 * Attempting this while link is negotiating fouled up link
4016 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
4017 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
4019 if (phy_data & MII_SR_LINK_STATUS) {
4020 for (cnt = 0; cnt < 10; cnt++) {
4021 /* read once to clear */
4022 ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data);
4025 /* and again to get new status */
4026 ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data);
4030 /* check for PCS lock */
4031 if (!(phy_data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS))
4032 return E1000_SUCCESS;
4034 /* Issue PHY reset */
4035 e1000_phy_hw_reset(hw);
4038 /* Disable GigE link negotiation */
4039 reg = E1000_READ_REG(hw, PHY_CTRL);
4040 E1000_WRITE_REG(hw, PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE |
4041 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
4043 /* unable to acquire PCS lock */
4044 return E1000_ERR_PHY;
4047 return E1000_SUCCESS;
4050 /******************************************************************************
4051 * Probes the expected PHY address for known PHY IDs
4053 * hw - Struct containing variables accessed by shared code
4054 ******************************************************************************/
4056 e1000_detect_gig_phy(struct e1000_hw *hw)
4058 int32_t phy_init_status, ret_val;
4059 uint16_t phy_id_high, phy_id_low;
4060 boolean_t match = FALSE;
4062 DEBUGFUNC("e1000_detect_gig_phy");
4064 if (hw->phy_id != 0)
4065 return E1000_SUCCESS;
4067 /* The 82571 firmware may still be configuring the PHY. In this
4068 * case, we cannot access the PHY until the configuration is done. So
4069 * we explicitly set the PHY values. */
4070 if (hw->mac_type == e1000_82571 ||
4071 hw->mac_type == e1000_82572) {
4072 hw->phy_id = IGP01E1000_I_PHY_ID;
4073 hw->phy_type = e1000_phy_igp_2;
4074 return E1000_SUCCESS;
4077 /* ESB-2 PHY reads require e1000_phy_gg82563 to be set because of a work-
4078 * around that forces PHY page 0 to be set or the reads fail. The rest of
4079 * the code in this routine uses e1000_read_phy_reg to read the PHY ID.
4080 * So for ESB-2 we need to have this set so our reads won't fail. If the
4081 * attached PHY is not a e1000_phy_gg82563, the routines below will figure
4082 * this out as well. */
4083 if (hw->mac_type == e1000_80003es2lan)
4084 hw->phy_type = e1000_phy_gg82563;
4086 /* Read the PHY ID Registers to identify which PHY is onboard. */
4087 ret_val = e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high);
4091 hw->phy_id = (uint32_t) (phy_id_high << 16);
4093 ret_val = e1000_read_phy_reg(hw, PHY_ID2, &phy_id_low);
4097 hw->phy_id |= (uint32_t) (phy_id_low & PHY_REVISION_MASK);
4098 hw->phy_revision = (uint32_t) phy_id_low & ~PHY_REVISION_MASK;
4100 switch (hw->mac_type) {
4102 if (hw->phy_id == M88E1000_E_PHY_ID) match = TRUE;
4105 if (hw->phy_id == M88E1000_I_PHY_ID) match = TRUE;
4109 case e1000_82545_rev_3:
4111 case e1000_82546_rev_3:
4112 if (hw->phy_id == M88E1011_I_PHY_ID) match = TRUE;
4115 case e1000_82541_rev_2:
4117 case e1000_82547_rev_2:
4118 if (hw->phy_id == IGP01E1000_I_PHY_ID) match = TRUE;
4121 if (hw->phy_id == M88E1111_I_PHY_ID) match = TRUE;
4123 case e1000_80003es2lan:
4124 if (hw->phy_id == GG82563_E_PHY_ID) match = TRUE;
4127 if (hw->phy_id == IGP03E1000_E_PHY_ID) match = TRUE;
4128 if (hw->phy_id == IFE_E_PHY_ID) match = TRUE;
4129 if (hw->phy_id == IFE_PLUS_E_PHY_ID) match = TRUE;
4130 if (hw->phy_id == IFE_C_E_PHY_ID) match = TRUE;
4133 DEBUGOUT1("Invalid MAC type %d\n", hw->mac_type);
4134 return -E1000_ERR_CONFIG;
4136 phy_init_status = e1000_set_phy_type(hw);
4138 if ((match) && (phy_init_status == E1000_SUCCESS)) {
4139 DEBUGOUT1("PHY ID 0x%X detected\n", hw->phy_id);
4140 return E1000_SUCCESS;
4142 DEBUGOUT1("Invalid PHY ID 0x%X\n", hw->phy_id);
4143 return -E1000_ERR_PHY;
4146 /******************************************************************************
4147 * Resets the PHY's DSP
4149 * hw - Struct containing variables accessed by shared code
4150 ******************************************************************************/
4152 e1000_phy_reset_dsp(struct e1000_hw *hw)
4155 DEBUGFUNC("e1000_phy_reset_dsp");
4158 if (hw->phy_type != e1000_phy_gg82563) {
4159 ret_val = e1000_write_phy_reg(hw, 29, 0x001d);
4162 ret_val = e1000_write_phy_reg(hw, 30, 0x00c1);
4164 ret_val = e1000_write_phy_reg(hw, 30, 0x0000);
4166 ret_val = E1000_SUCCESS;
4172 /******************************************************************************
4173 * Get PHY information from various PHY registers for igp PHY only.
4175 * hw - Struct containing variables accessed by shared code
4176 * phy_info - PHY information structure
4177 ******************************************************************************/
4179 e1000_phy_igp_get_info(struct e1000_hw *hw,
4180 struct e1000_phy_info *phy_info)
4183 uint16_t phy_data, min_length, max_length, average;
4184 e1000_rev_polarity polarity;
4186 DEBUGFUNC("e1000_phy_igp_get_info");
4188 /* The downshift status is checked only once, after link is established,
4189 * and it stored in the hw->speed_downgraded parameter. */
4190 phy_info->downshift = (e1000_downshift)hw->speed_downgraded;
4192 /* IGP01E1000 does not need to support it. */
4193 phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal;
4195 /* IGP01E1000 always correct polarity reversal */
4196 phy_info->polarity_correction = e1000_polarity_reversal_enabled;
4198 /* Check polarity status */
4199 ret_val = e1000_check_polarity(hw, &polarity);
4203 phy_info->cable_polarity = polarity;
4205 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, &phy_data);
4209 phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & IGP01E1000_PSSR_MDIX) >>
4210 IGP01E1000_PSSR_MDIX_SHIFT);
4212 if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) ==
4213 IGP01E1000_PSSR_SPEED_1000MBPS) {
4214 /* Local/Remote Receiver Information are only valid at 1000 Mbps */
4215 ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
4219 phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >>
4220 SR_1000T_LOCAL_RX_STATUS_SHIFT) ?
4221 e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
4222 phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >>
4223 SR_1000T_REMOTE_RX_STATUS_SHIFT) ?
4224 e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
4226 /* Get cable length */
4227 ret_val = e1000_get_cable_length(hw, &min_length, &max_length);
4231 /* Translate to old method */
4232 average = (max_length + min_length) / 2;
4234 if (average <= e1000_igp_cable_length_50)
4235 phy_info->cable_length = e1000_cable_length_50;
4236 else if (average <= e1000_igp_cable_length_80)
4237 phy_info->cable_length = e1000_cable_length_50_80;
4238 else if (average <= e1000_igp_cable_length_110)
4239 phy_info->cable_length = e1000_cable_length_80_110;
4240 else if (average <= e1000_igp_cable_length_140)
4241 phy_info->cable_length = e1000_cable_length_110_140;
4243 phy_info->cable_length = e1000_cable_length_140;
4246 return E1000_SUCCESS;
4249 /******************************************************************************
4250 * Get PHY information from various PHY registers for ife PHY only.
4252 * hw - Struct containing variables accessed by shared code
4253 * phy_info - PHY information structure
4254 ******************************************************************************/
4256 e1000_phy_ife_get_info(struct e1000_hw *hw,
4257 struct e1000_phy_info *phy_info)
4261 e1000_rev_polarity polarity;
4263 DEBUGFUNC("e1000_phy_ife_get_info");
4265 phy_info->downshift = (e1000_downshift)hw->speed_downgraded;
4266 phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal;
4268 ret_val = e1000_read_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, &phy_data);
4271 phy_info->polarity_correction =
4272 ((phy_data & IFE_PSC_AUTO_POLARITY_DISABLE) >>
4273 IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT) ?
4274 e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled;
4276 if (phy_info->polarity_correction == e1000_polarity_reversal_enabled) {
4277 ret_val = e1000_check_polarity(hw, &polarity);
4281 /* Polarity is forced. */
4282 polarity = ((phy_data & IFE_PSC_FORCE_POLARITY) >>
4283 IFE_PSC_FORCE_POLARITY_SHIFT) ?
4284 e1000_rev_polarity_reversed : e1000_rev_polarity_normal;
4286 phy_info->cable_polarity = polarity;
4288 ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data);
4292 phy_info->mdix_mode = (e1000_auto_x_mode)
4293 ((phy_data & (IFE_PMC_AUTO_MDIX | IFE_PMC_FORCE_MDIX)) >>
4294 IFE_PMC_MDIX_MODE_SHIFT);
4296 return E1000_SUCCESS;
4299 /******************************************************************************
4300 * Get PHY information from various PHY registers fot m88 PHY only.
4302 * hw - Struct containing variables accessed by shared code
4303 * phy_info - PHY information structure
4304 ******************************************************************************/
4306 e1000_phy_m88_get_info(struct e1000_hw *hw,
4307 struct e1000_phy_info *phy_info)
4311 e1000_rev_polarity polarity;
4313 DEBUGFUNC("e1000_phy_m88_get_info");
4315 /* The downshift status is checked only once, after link is established,
4316 * and it stored in the hw->speed_downgraded parameter. */
4317 phy_info->downshift = (e1000_downshift)hw->speed_downgraded;
4319 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
4323 phy_info->extended_10bt_distance =
4324 ((phy_data & M88E1000_PSCR_10BT_EXT_DIST_ENABLE) >>
4325 M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT) ?
4326 e1000_10bt_ext_dist_enable_lower : e1000_10bt_ext_dist_enable_normal;
4328 phy_info->polarity_correction =
4329 ((phy_data & M88E1000_PSCR_POLARITY_REVERSAL) >>
4330 M88E1000_PSCR_POLARITY_REVERSAL_SHIFT) ?
4331 e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled;
4333 /* Check polarity status */
4334 ret_val = e1000_check_polarity(hw, &polarity);
4337 phy_info->cable_polarity = polarity;
4339 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data);
4343 phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & M88E1000_PSSR_MDIX) >>
4344 M88E1000_PSSR_MDIX_SHIFT);
4346 if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) {
4347 /* Cable Length Estimation and Local/Remote Receiver Information
4348 * are only valid at 1000 Mbps.
4350 if (hw->phy_type != e1000_phy_gg82563) {
4351 phy_info->cable_length = (e1000_cable_length)((phy_data & M88E1000_PSSR_CABLE_LENGTH) >>
4352 M88E1000_PSSR_CABLE_LENGTH_SHIFT);
4354 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE,
4359 phy_info->cable_length = (e1000_cable_length)(phy_data & GG82563_DSPD_CABLE_LENGTH);
4362 ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data);
4366 phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >>
4367 SR_1000T_LOCAL_RX_STATUS_SHIFT) ?
4368 e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
4369 phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >>
4370 SR_1000T_REMOTE_RX_STATUS_SHIFT) ?
4371 e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok;
4375 return E1000_SUCCESS;
4378 /******************************************************************************
4379 * Get PHY information from various PHY registers
4381 * hw - Struct containing variables accessed by shared code
4382 * phy_info - PHY information structure
4383 ******************************************************************************/
4385 e1000_phy_get_info(struct e1000_hw *hw,
4386 struct e1000_phy_info *phy_info)
4391 DEBUGFUNC("e1000_phy_get_info");
4393 phy_info->cable_length = e1000_cable_length_undefined;
4394 phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_undefined;
4395 phy_info->cable_polarity = e1000_rev_polarity_undefined;
4396 phy_info->downshift = e1000_downshift_undefined;
4397 phy_info->polarity_correction = e1000_polarity_reversal_undefined;
4398 phy_info->mdix_mode = e1000_auto_x_mode_undefined;
4399 phy_info->local_rx = e1000_1000t_rx_status_undefined;
4400 phy_info->remote_rx = e1000_1000t_rx_status_undefined;
4402 if (hw->media_type != e1000_media_type_copper) {
4403 DEBUGOUT("PHY info is only valid for copper media\n");
4404 return -E1000_ERR_CONFIG;
4407 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
4411 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data);
4415 if ((phy_data & MII_SR_LINK_STATUS) != MII_SR_LINK_STATUS) {
4416 DEBUGOUT("PHY info is only valid if link is up\n");
4417 return -E1000_ERR_CONFIG;
4420 if (hw->phy_type == e1000_phy_igp ||
4421 hw->phy_type == e1000_phy_igp_3 ||
4422 hw->phy_type == e1000_phy_igp_2)
4423 return e1000_phy_igp_get_info(hw, phy_info);
4424 else if (hw->phy_type == e1000_phy_ife)
4425 return e1000_phy_ife_get_info(hw, phy_info);
4427 return e1000_phy_m88_get_info(hw, phy_info);
4431 e1000_validate_mdi_setting(struct e1000_hw *hw)
4433 DEBUGFUNC("e1000_validate_mdi_settings");
4435 if (!hw->autoneg && (hw->mdix == 0 || hw->mdix == 3)) {
4436 DEBUGOUT("Invalid MDI setting detected\n");
4438 return -E1000_ERR_CONFIG;
4440 return E1000_SUCCESS;
4444 /******************************************************************************
4445 * Sets up eeprom variables in the hw struct. Must be called after mac_type
4446 * is configured. Additionally, if this is ICH8, the flash controller GbE
4447 * registers must be mapped, or this will crash.
4449 * hw - Struct containing variables accessed by shared code
4450 *****************************************************************************/
4452 e1000_init_eeprom_params(struct e1000_hw *hw)
4454 struct e1000_eeprom_info *eeprom = &hw->eeprom;
4455 uint32_t eecd = E1000_READ_REG(hw, EECD);
4456 int32_t ret_val = E1000_SUCCESS;
4457 uint16_t eeprom_size;
4459 DEBUGFUNC("e1000_init_eeprom_params");
4461 switch (hw->mac_type) {
4462 case e1000_82542_rev2_0:
4463 case e1000_82542_rev2_1:
4466 eeprom->type = e1000_eeprom_microwire;
4467 eeprom->word_size = 64;
4468 eeprom->opcode_bits = 3;
4469 eeprom->address_bits = 6;
4470 eeprom->delay_usec = 50;
4471 eeprom->use_eerd = FALSE;
4472 eeprom->use_eewr = FALSE;
4476 case e1000_82545_rev_3:
4478 case e1000_82546_rev_3:
4479 eeprom->type = e1000_eeprom_microwire;
4480 eeprom->opcode_bits = 3;
4481 eeprom->delay_usec = 50;
4482 if (eecd & E1000_EECD_SIZE) {
4483 eeprom->word_size = 256;
4484 eeprom->address_bits = 8;
4486 eeprom->word_size = 64;
4487 eeprom->address_bits = 6;
4489 eeprom->use_eerd = FALSE;
4490 eeprom->use_eewr = FALSE;
4493 case e1000_82541_rev_2:
4495 case e1000_82547_rev_2:
4496 if (eecd & E1000_EECD_TYPE) {
4497 eeprom->type = e1000_eeprom_spi;
4498 eeprom->opcode_bits = 8;
4499 eeprom->delay_usec = 1;
4500 if (eecd & E1000_EECD_ADDR_BITS) {
4501 eeprom->page_size = 32;
4502 eeprom->address_bits = 16;
4504 eeprom->page_size = 8;
4505 eeprom->address_bits = 8;
4508 eeprom->type = e1000_eeprom_microwire;
4509 eeprom->opcode_bits = 3;
4510 eeprom->delay_usec = 50;
4511 if (eecd & E1000_EECD_ADDR_BITS) {
4512 eeprom->word_size = 256;
4513 eeprom->address_bits = 8;
4515 eeprom->word_size = 64;
4516 eeprom->address_bits = 6;
4519 eeprom->use_eerd = FALSE;
4520 eeprom->use_eewr = FALSE;
4524 eeprom->type = e1000_eeprom_spi;
4525 eeprom->opcode_bits = 8;
4526 eeprom->delay_usec = 1;
4527 if (eecd & E1000_EECD_ADDR_BITS) {
4528 eeprom->page_size = 32;
4529 eeprom->address_bits = 16;
4531 eeprom->page_size = 8;
4532 eeprom->address_bits = 8;
4534 eeprom->use_eerd = FALSE;
4535 eeprom->use_eewr = FALSE;
4538 eeprom->type = e1000_eeprom_spi;
4539 eeprom->opcode_bits = 8;
4540 eeprom->delay_usec = 1;
4541 if (eecd & E1000_EECD_ADDR_BITS) {
4542 eeprom->page_size = 32;
4543 eeprom->address_bits = 16;
4545 eeprom->page_size = 8;
4546 eeprom->address_bits = 8;
4548 eeprom->use_eerd = TRUE;
4549 eeprom->use_eewr = TRUE;
4550 if (e1000_is_onboard_nvm_eeprom(hw) == FALSE) {
4551 eeprom->type = e1000_eeprom_flash;
4552 eeprom->word_size = 2048;
4554 /* Ensure that the Autonomous FLASH update bit is cleared due to
4555 * Flash update issue on parts which use a FLASH for NVM. */
4556 eecd &= ~E1000_EECD_AUPDEN;
4557 E1000_WRITE_REG(hw, EECD, eecd);
4560 case e1000_80003es2lan:
4561 eeprom->type = e1000_eeprom_spi;
4562 eeprom->opcode_bits = 8;
4563 eeprom->delay_usec = 1;
4564 if (eecd & E1000_EECD_ADDR_BITS) {
4565 eeprom->page_size = 32;
4566 eeprom->address_bits = 16;
4568 eeprom->page_size = 8;
4569 eeprom->address_bits = 8;
4571 eeprom->use_eerd = TRUE;
4572 eeprom->use_eewr = FALSE;
4577 uint32_t flash_size = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_GFPREG);
4579 eeprom->type = e1000_eeprom_ich8;
4580 eeprom->use_eerd = FALSE;
4581 eeprom->use_eewr = FALSE;
4582 eeprom->word_size = E1000_SHADOW_RAM_WORDS;
4584 /* Zero the shadow RAM structure. But don't load it from NVM
4585 * so as to save time for driver init */
4586 if (hw->eeprom_shadow_ram != NULL) {
4587 for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) {
4588 hw->eeprom_shadow_ram[i].modified = FALSE;
4589 hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF;
4593 hw->flash_base_addr = (flash_size & ICH_GFPREG_BASE_MASK) *
4594 ICH_FLASH_SECTOR_SIZE;
4596 hw->flash_bank_size = ((flash_size >> 16) & ICH_GFPREG_BASE_MASK) + 1;
4597 hw->flash_bank_size -= (flash_size & ICH_GFPREG_BASE_MASK);
4599 hw->flash_bank_size *= ICH_FLASH_SECTOR_SIZE;
4601 hw->flash_bank_size /= 2 * sizeof(uint16_t);
4609 if (eeprom->type == e1000_eeprom_spi) {
4610 /* eeprom_size will be an enum [0..8] that maps to eeprom sizes 128B to
4611 * 32KB (incremented by powers of 2).
4613 if (hw->mac_type <= e1000_82547_rev_2) {
4614 /* Set to default value for initial eeprom read. */
4615 eeprom->word_size = 64;
4616 ret_val = e1000_read_eeprom(hw, EEPROM_CFG, 1, &eeprom_size);
4619 eeprom_size = (eeprom_size & EEPROM_SIZE_MASK) >> EEPROM_SIZE_SHIFT;
4620 /* 256B eeprom size was not supported in earlier hardware, so we
4621 * bump eeprom_size up one to ensure that "1" (which maps to 256B)
4622 * is never the result used in the shifting logic below. */
4626 eeprom_size = (uint16_t)((eecd & E1000_EECD_SIZE_EX_MASK) >>
4627 E1000_EECD_SIZE_EX_SHIFT);
4630 eeprom->word_size = 1 << (eeprom_size + EEPROM_WORD_SIZE_SHIFT);
4635 /******************************************************************************
4636 * Raises the EEPROM's clock input.
4638 * hw - Struct containing variables accessed by shared code
4639 * eecd - EECD's current value
4640 *****************************************************************************/
4642 e1000_raise_ee_clk(struct e1000_hw *hw,
4645 /* Raise the clock input to the EEPROM (by setting the SK bit), and then
4646 * wait <delay> microseconds.
4648 *eecd = *eecd | E1000_EECD_SK;
4649 E1000_WRITE_REG(hw, EECD, *eecd);
4650 E1000_WRITE_FLUSH(hw);
4651 udelay(hw->eeprom.delay_usec);
4654 /******************************************************************************
4655 * Lowers the EEPROM's clock input.
4657 * hw - Struct containing variables accessed by shared code
4658 * eecd - EECD's current value
4659 *****************************************************************************/
4661 e1000_lower_ee_clk(struct e1000_hw *hw,
4664 /* Lower the clock input to the EEPROM (by clearing the SK bit), and then
4665 * wait 50 microseconds.
4667 *eecd = *eecd & ~E1000_EECD_SK;
4668 E1000_WRITE_REG(hw, EECD, *eecd);
4669 E1000_WRITE_FLUSH(hw);
4670 udelay(hw->eeprom.delay_usec);
4673 /******************************************************************************
4674 * Shift data bits out to the EEPROM.
4676 * hw - Struct containing variables accessed by shared code
4677 * data - data to send to the EEPROM
4678 * count - number of bits to shift out
4679 *****************************************************************************/
4681 e1000_shift_out_ee_bits(struct e1000_hw *hw,
4685 struct e1000_eeprom_info *eeprom = &hw->eeprom;
4689 /* We need to shift "count" bits out to the EEPROM. So, value in the
4690 * "data" parameter will be shifted out to the EEPROM one bit at a time.
4691 * In order to do this, "data" must be broken down into bits.
4693 mask = 0x01 << (count - 1);
4694 eecd = E1000_READ_REG(hw, EECD);
4695 if (eeprom->type == e1000_eeprom_microwire) {
4696 eecd &= ~E1000_EECD_DO;
4697 } else if (eeprom->type == e1000_eeprom_spi) {
4698 eecd |= E1000_EECD_DO;
4701 /* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1",
4702 * and then raising and then lowering the clock (the SK bit controls
4703 * the clock input to the EEPROM). A "0" is shifted out to the EEPROM
4704 * by setting "DI" to "0" and then raising and then lowering the clock.
4706 eecd &= ~E1000_EECD_DI;
4709 eecd |= E1000_EECD_DI;
4711 E1000_WRITE_REG(hw, EECD, eecd);
4712 E1000_WRITE_FLUSH(hw);
4714 udelay(eeprom->delay_usec);
4716 e1000_raise_ee_clk(hw, &eecd);
4717 e1000_lower_ee_clk(hw, &eecd);
4723 /* We leave the "DI" bit set to "0" when we leave this routine. */
4724 eecd &= ~E1000_EECD_DI;
4725 E1000_WRITE_REG(hw, EECD, eecd);
4728 /******************************************************************************
4729 * Shift data bits in from the EEPROM
4731 * hw - Struct containing variables accessed by shared code
4732 *****************************************************************************/
4734 e1000_shift_in_ee_bits(struct e1000_hw *hw,
4741 /* In order to read a register from the EEPROM, we need to shift 'count'
4742 * bits in from the EEPROM. Bits are "shifted in" by raising the clock
4743 * input to the EEPROM (setting the SK bit), and then reading the value of
4744 * the "DO" bit. During this "shifting in" process the "DI" bit should
4748 eecd = E1000_READ_REG(hw, EECD);
4750 eecd &= ~(E1000_EECD_DO | E1000_EECD_DI);
4753 for (i = 0; i < count; i++) {
4755 e1000_raise_ee_clk(hw, &eecd);
4757 eecd = E1000_READ_REG(hw, EECD);
4759 eecd &= ~(E1000_EECD_DI);
4760 if (eecd & E1000_EECD_DO)
4763 e1000_lower_ee_clk(hw, &eecd);
4769 /******************************************************************************
4770 * Prepares EEPROM for access
4772 * hw - Struct containing variables accessed by shared code
4774 * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This
4775 * function should be called before issuing a command to the EEPROM.
4776 *****************************************************************************/
4778 e1000_acquire_eeprom(struct e1000_hw *hw)
4780 struct e1000_eeprom_info *eeprom = &hw->eeprom;
4783 DEBUGFUNC("e1000_acquire_eeprom");
4785 if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM))
4786 return -E1000_ERR_SWFW_SYNC;
4787 eecd = E1000_READ_REG(hw, EECD);
4789 if (hw->mac_type != e1000_82573) {
4790 /* Request EEPROM Access */
4791 if (hw->mac_type > e1000_82544) {
4792 eecd |= E1000_EECD_REQ;
4793 E1000_WRITE_REG(hw, EECD, eecd);
4794 eecd = E1000_READ_REG(hw, EECD);
4795 while ((!(eecd & E1000_EECD_GNT)) &&
4796 (i < E1000_EEPROM_GRANT_ATTEMPTS)) {
4799 eecd = E1000_READ_REG(hw, EECD);
4801 if (!(eecd & E1000_EECD_GNT)) {
4802 eecd &= ~E1000_EECD_REQ;
4803 E1000_WRITE_REG(hw, EECD, eecd);
4804 DEBUGOUT("Could not acquire EEPROM grant\n");
4805 e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM);
4806 return -E1000_ERR_EEPROM;
4811 /* Setup EEPROM for Read/Write */
4813 if (eeprom->type == e1000_eeprom_microwire) {
4814 /* Clear SK and DI */
4815 eecd &= ~(E1000_EECD_DI | E1000_EECD_SK);
4816 E1000_WRITE_REG(hw, EECD, eecd);
4819 eecd |= E1000_EECD_CS;
4820 E1000_WRITE_REG(hw, EECD, eecd);
4821 } else if (eeprom->type == e1000_eeprom_spi) {
4822 /* Clear SK and CS */
4823 eecd &= ~(E1000_EECD_CS | E1000_EECD_SK);
4824 E1000_WRITE_REG(hw, EECD, eecd);
4828 return E1000_SUCCESS;
4831 /******************************************************************************
4832 * Returns EEPROM to a "standby" state
4834 * hw - Struct containing variables accessed by shared code
4835 *****************************************************************************/
4837 e1000_standby_eeprom(struct e1000_hw *hw)
4839 struct e1000_eeprom_info *eeprom = &hw->eeprom;
4842 eecd = E1000_READ_REG(hw, EECD);
4844 if (eeprom->type == e1000_eeprom_microwire) {
4845 eecd &= ~(E1000_EECD_CS | E1000_EECD_SK);
4846 E1000_WRITE_REG(hw, EECD, eecd);
4847 E1000_WRITE_FLUSH(hw);
4848 udelay(eeprom->delay_usec);
4851 eecd |= E1000_EECD_SK;
4852 E1000_WRITE_REG(hw, EECD, eecd);
4853 E1000_WRITE_FLUSH(hw);
4854 udelay(eeprom->delay_usec);
4857 eecd |= E1000_EECD_CS;
4858 E1000_WRITE_REG(hw, EECD, eecd);
4859 E1000_WRITE_FLUSH(hw);
4860 udelay(eeprom->delay_usec);
4863 eecd &= ~E1000_EECD_SK;
4864 E1000_WRITE_REG(hw, EECD, eecd);
4865 E1000_WRITE_FLUSH(hw);
4866 udelay(eeprom->delay_usec);
4867 } else if (eeprom->type == e1000_eeprom_spi) {
4868 /* Toggle CS to flush commands */
4869 eecd |= E1000_EECD_CS;
4870 E1000_WRITE_REG(hw, EECD, eecd);
4871 E1000_WRITE_FLUSH(hw);
4872 udelay(eeprom->delay_usec);
4873 eecd &= ~E1000_EECD_CS;
4874 E1000_WRITE_REG(hw, EECD, eecd);
4875 E1000_WRITE_FLUSH(hw);
4876 udelay(eeprom->delay_usec);
4880 /******************************************************************************
4881 * Terminates a command by inverting the EEPROM's chip select pin
4883 * hw - Struct containing variables accessed by shared code
4884 *****************************************************************************/
4886 e1000_release_eeprom(struct e1000_hw *hw)
4890 DEBUGFUNC("e1000_release_eeprom");
4892 eecd = E1000_READ_REG(hw, EECD);
4894 if (hw->eeprom.type == e1000_eeprom_spi) {
4895 eecd |= E1000_EECD_CS; /* Pull CS high */
4896 eecd &= ~E1000_EECD_SK; /* Lower SCK */
4898 E1000_WRITE_REG(hw, EECD, eecd);
4900 udelay(hw->eeprom.delay_usec);
4901 } else if (hw->eeprom.type == e1000_eeprom_microwire) {
4902 /* cleanup eeprom */
4904 /* CS on Microwire is active-high */
4905 eecd &= ~(E1000_EECD_CS | E1000_EECD_DI);
4907 E1000_WRITE_REG(hw, EECD, eecd);
4909 /* Rising edge of clock */
4910 eecd |= E1000_EECD_SK;
4911 E1000_WRITE_REG(hw, EECD, eecd);
4912 E1000_WRITE_FLUSH(hw);
4913 udelay(hw->eeprom.delay_usec);
4915 /* Falling edge of clock */
4916 eecd &= ~E1000_EECD_SK;
4917 E1000_WRITE_REG(hw, EECD, eecd);
4918 E1000_WRITE_FLUSH(hw);
4919 udelay(hw->eeprom.delay_usec);
4922 /* Stop requesting EEPROM access */
4923 if (hw->mac_type > e1000_82544) {
4924 eecd &= ~E1000_EECD_REQ;
4925 E1000_WRITE_REG(hw, EECD, eecd);
4928 e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM);
4931 /******************************************************************************
4932 * Reads a 16 bit word from the EEPROM.
4934 * hw - Struct containing variables accessed by shared code
4935 *****************************************************************************/
4937 e1000_spi_eeprom_ready(struct e1000_hw *hw)
4939 uint16_t retry_count = 0;
4940 uint8_t spi_stat_reg;
4942 DEBUGFUNC("e1000_spi_eeprom_ready");
4944 /* Read "Status Register" repeatedly until the LSB is cleared. The
4945 * EEPROM will signal that the command has been completed by clearing
4946 * bit 0 of the internal status register. If it's not cleared within
4947 * 5 milliseconds, then error out.
4951 e1000_shift_out_ee_bits(hw, EEPROM_RDSR_OPCODE_SPI,
4952 hw->eeprom.opcode_bits);
4953 spi_stat_reg = (uint8_t)e1000_shift_in_ee_bits(hw, 8);
4954 if (!(spi_stat_reg & EEPROM_STATUS_RDY_SPI))
4960 e1000_standby_eeprom(hw);
4961 } while (retry_count < EEPROM_MAX_RETRY_SPI);
4963 /* ATMEL SPI write time could vary from 0-20mSec on 3.3V devices (and
4964 * only 0-5mSec on 5V devices)
4966 if (retry_count >= EEPROM_MAX_RETRY_SPI) {
4967 DEBUGOUT("SPI EEPROM Status error\n");
4968 return -E1000_ERR_EEPROM;
4971 return E1000_SUCCESS;
4974 /******************************************************************************
4975 * Reads a 16 bit word from the EEPROM.
4977 * hw - Struct containing variables accessed by shared code
4978 * offset - offset of word in the EEPROM to read
4979 * data - word read from the EEPROM
4980 * words - number of words to read
4981 *****************************************************************************/
4983 e1000_read_eeprom(struct e1000_hw *hw,
4988 struct e1000_eeprom_info *eeprom = &hw->eeprom;
4991 DEBUGFUNC("e1000_read_eeprom");
4993 /* If eeprom is not yet detected, do so now */
4994 if (eeprom->word_size == 0)
4995 e1000_init_eeprom_params(hw);
4997 /* A check for invalid values: offset too large, too many words, and not
5000 if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) ||
5002 DEBUGOUT2("\"words\" parameter out of bounds. Words = %d, size = %d\n", offset, eeprom->word_size);
5003 return -E1000_ERR_EEPROM;
5006 /* EEPROM's that don't use EERD to read require us to bit-bang the SPI
5007 * directly. In this case, we need to acquire the EEPROM so that
5008 * FW or other port software does not interrupt.
5010 if (e1000_is_onboard_nvm_eeprom(hw) == TRUE &&
5011 hw->eeprom.use_eerd == FALSE) {
5012 /* Prepare the EEPROM for bit-bang reading */
5013 if (e1000_acquire_eeprom(hw) != E1000_SUCCESS)
5014 return -E1000_ERR_EEPROM;
5017 /* Eerd register EEPROM access requires no eeprom aquire/release */
5018 if (eeprom->use_eerd == TRUE)
5019 return e1000_read_eeprom_eerd(hw, offset, words, data);
5021 /* ICH EEPROM access is done via the ICH flash controller */
5022 if (eeprom->type == e1000_eeprom_ich8)
5023 return e1000_read_eeprom_ich8(hw, offset, words, data);
5025 /* Set up the SPI or Microwire EEPROM for bit-bang reading. We have
5026 * acquired the EEPROM at this point, so any returns should relase it */
5027 if (eeprom->type == e1000_eeprom_spi) {
5029 uint8_t read_opcode = EEPROM_READ_OPCODE_SPI;
5031 if (e1000_spi_eeprom_ready(hw)) {
5032 e1000_release_eeprom(hw);
5033 return -E1000_ERR_EEPROM;
5036 e1000_standby_eeprom(hw);
5038 /* Some SPI eeproms use the 8th address bit embedded in the opcode */
5039 if ((eeprom->address_bits == 8) && (offset >= 128))
5040 read_opcode |= EEPROM_A8_OPCODE_SPI;
5042 /* Send the READ command (opcode + addr) */
5043 e1000_shift_out_ee_bits(hw, read_opcode, eeprom->opcode_bits);
5044 e1000_shift_out_ee_bits(hw, (uint16_t)(offset*2), eeprom->address_bits);
5046 /* Read the data. The address of the eeprom internally increments with
5047 * each byte (spi) being read, saving on the overhead of eeprom setup
5048 * and tear-down. The address counter will roll over if reading beyond
5049 * the size of the eeprom, thus allowing the entire memory to be read
5050 * starting from any offset. */
5051 for (i = 0; i < words; i++) {
5052 word_in = e1000_shift_in_ee_bits(hw, 16);
5053 data[i] = (word_in >> 8) | (word_in << 8);
5055 } else if (eeprom->type == e1000_eeprom_microwire) {
5056 for (i = 0; i < words; i++) {
5057 /* Send the READ command (opcode + addr) */
5058 e1000_shift_out_ee_bits(hw, EEPROM_READ_OPCODE_MICROWIRE,
5059 eeprom->opcode_bits);
5060 e1000_shift_out_ee_bits(hw, (uint16_t)(offset + i),
5061 eeprom->address_bits);
5063 /* Read the data. For microwire, each word requires the overhead
5064 * of eeprom setup and tear-down. */
5065 data[i] = e1000_shift_in_ee_bits(hw, 16);
5066 e1000_standby_eeprom(hw);
5070 /* End this read operation */
5071 e1000_release_eeprom(hw);
5073 return E1000_SUCCESS;
5076 /******************************************************************************
5077 * Reads a 16 bit word from the EEPROM using the EERD register.
5079 * hw - Struct containing variables accessed by shared code
5080 * offset - offset of word in the EEPROM to read
5081 * data - word read from the EEPROM
5082 * words - number of words to read
5083 *****************************************************************************/
5085 e1000_read_eeprom_eerd(struct e1000_hw *hw,
5090 uint32_t i, eerd = 0;
5093 for (i = 0; i < words; i++) {
5094 eerd = ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) +
5095 E1000_EEPROM_RW_REG_START;
5097 E1000_WRITE_REG(hw, EERD, eerd);
5098 error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_READ);
5103 data[i] = (E1000_READ_REG(hw, EERD) >> E1000_EEPROM_RW_REG_DATA);
5110 /******************************************************************************
5111 * Writes a 16 bit word from the EEPROM using the EEWR register.
5113 * hw - Struct containing variables accessed by shared code
5114 * offset - offset of word in the EEPROM to read
5115 * data - word read from the EEPROM
5116 * words - number of words to read
5117 *****************************************************************************/
5119 e1000_write_eeprom_eewr(struct e1000_hw *hw,
5124 uint32_t register_value = 0;
5128 if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM))
5129 return -E1000_ERR_SWFW_SYNC;
5131 for (i = 0; i < words; i++) {
5132 register_value = (data[i] << E1000_EEPROM_RW_REG_DATA) |
5133 ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) |
5134 E1000_EEPROM_RW_REG_START;
5136 error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE);
5141 E1000_WRITE_REG(hw, EEWR, register_value);
5143 error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE);
5150 e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM);
5154 /******************************************************************************
5155 * Polls the status bit (bit 1) of the EERD to determine when the read is done.
5157 * hw - Struct containing variables accessed by shared code
5158 *****************************************************************************/
5160 e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd)
5162 uint32_t attempts = 100000;
5163 uint32_t i, reg = 0;
5164 int32_t done = E1000_ERR_EEPROM;
5166 for (i = 0; i < attempts; i++) {
5167 if (eerd == E1000_EEPROM_POLL_READ)
5168 reg = E1000_READ_REG(hw, EERD);
5170 reg = E1000_READ_REG(hw, EEWR);
5172 if (reg & E1000_EEPROM_RW_REG_DONE) {
5173 done = E1000_SUCCESS;
5182 /***************************************************************************
5183 * Description: Determines if the onboard NVM is FLASH or EEPROM.
5185 * hw - Struct containing variables accessed by shared code
5186 ****************************************************************************/
5188 e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw)
5192 DEBUGFUNC("e1000_is_onboard_nvm_eeprom");
5194 if (hw->mac_type == e1000_ich8lan)
5197 if (hw->mac_type == e1000_82573) {
5198 eecd = E1000_READ_REG(hw, EECD);
5200 /* Isolate bits 15 & 16 */
5201 eecd = ((eecd >> 15) & 0x03);
5203 /* If both bits are set, device is Flash type */
5211 /******************************************************************************
5212 * Verifies that the EEPROM has a valid checksum
5214 * hw - Struct containing variables accessed by shared code
5216 * Reads the first 64 16 bit words of the EEPROM and sums the values read.
5217 * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is
5219 *****************************************************************************/
5221 e1000_validate_eeprom_checksum(struct e1000_hw *hw)
5223 uint16_t checksum = 0;
5224 uint16_t i, eeprom_data;
5226 DEBUGFUNC("e1000_validate_eeprom_checksum");
5228 if ((hw->mac_type == e1000_82573) &&
5229 (e1000_is_onboard_nvm_eeprom(hw) == FALSE)) {
5230 /* Check bit 4 of word 10h. If it is 0, firmware is done updating
5231 * 10h-12h. Checksum may need to be fixed. */
5232 e1000_read_eeprom(hw, 0x10, 1, &eeprom_data);
5233 if ((eeprom_data & 0x10) == 0) {
5234 /* Read 0x23 and check bit 15. This bit is a 1 when the checksum
5235 * has already been fixed. If the checksum is still wrong and this
5236 * bit is a 1, we need to return bad checksum. Otherwise, we need
5237 * to set this bit to a 1 and update the checksum. */
5238 e1000_read_eeprom(hw, 0x23, 1, &eeprom_data);
5239 if ((eeprom_data & 0x8000) == 0) {
5240 eeprom_data |= 0x8000;
5241 e1000_write_eeprom(hw, 0x23, 1, &eeprom_data);
5242 e1000_update_eeprom_checksum(hw);
5247 if (hw->mac_type == e1000_ich8lan) {
5248 /* Drivers must allocate the shadow ram structure for the
5249 * EEPROM checksum to be updated. Otherwise, this bit as well
5250 * as the checksum must both be set correctly for this
5251 * validation to pass.
5253 e1000_read_eeprom(hw, 0x19, 1, &eeprom_data);
5254 if ((eeprom_data & 0x40) == 0) {
5255 eeprom_data |= 0x40;
5256 e1000_write_eeprom(hw, 0x19, 1, &eeprom_data);
5257 e1000_update_eeprom_checksum(hw);
5261 for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) {
5262 if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) {
5263 DEBUGOUT("EEPROM Read Error\n");
5264 return -E1000_ERR_EEPROM;
5266 checksum += eeprom_data;
5269 if (checksum == (uint16_t) EEPROM_SUM)
5270 return E1000_SUCCESS;
5272 DEBUGOUT("EEPROM Checksum Invalid\n");
5273 return -E1000_ERR_EEPROM;
5277 /******************************************************************************
5278 * Calculates the EEPROM checksum and writes it to the EEPROM
5280 * hw - Struct containing variables accessed by shared code
5282 * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA.
5283 * Writes the difference to word offset 63 of the EEPROM.
5284 *****************************************************************************/
5286 e1000_update_eeprom_checksum(struct e1000_hw *hw)
5289 uint16_t checksum = 0;
5290 uint16_t i, eeprom_data;
5292 DEBUGFUNC("e1000_update_eeprom_checksum");
5294 for (i = 0; i < EEPROM_CHECKSUM_REG; i++) {
5295 if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) {
5296 DEBUGOUT("EEPROM Read Error\n");
5297 return -E1000_ERR_EEPROM;
5299 checksum += eeprom_data;
5301 checksum = (uint16_t) EEPROM_SUM - checksum;
5302 if (e1000_write_eeprom(hw, EEPROM_CHECKSUM_REG, 1, &checksum) < 0) {
5303 DEBUGOUT("EEPROM Write Error\n");
5304 return -E1000_ERR_EEPROM;
5305 } else if (hw->eeprom.type == e1000_eeprom_flash) {
5306 e1000_commit_shadow_ram(hw);
5307 } else if (hw->eeprom.type == e1000_eeprom_ich8) {
5308 e1000_commit_shadow_ram(hw);
5309 /* Reload the EEPROM, or else modifications will not appear
5310 * until after next adapter reset. */
5311 ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
5312 ctrl_ext |= E1000_CTRL_EXT_EE_RST;
5313 E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
5316 return E1000_SUCCESS;
5319 /******************************************************************************
5320 * Parent function for writing words to the different EEPROM types.
5322 * hw - Struct containing variables accessed by shared code
5323 * offset - offset within the EEPROM to be written to
5324 * words - number of words to write
5325 * data - 16 bit word to be written to the EEPROM
5327 * If e1000_update_eeprom_checksum is not called after this function, the
5328 * EEPROM will most likely contain an invalid checksum.
5329 *****************************************************************************/
5331 e1000_write_eeprom(struct e1000_hw *hw,
5336 struct e1000_eeprom_info *eeprom = &hw->eeprom;
5339 DEBUGFUNC("e1000_write_eeprom");
5341 /* If eeprom is not yet detected, do so now */
5342 if (eeprom->word_size == 0)
5343 e1000_init_eeprom_params(hw);
5345 /* A check for invalid values: offset too large, too many words, and not
5348 if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) ||
5350 DEBUGOUT("\"words\" parameter out of bounds\n");
5351 return -E1000_ERR_EEPROM;
5354 /* 82573 writes only through eewr */
5355 if (eeprom->use_eewr == TRUE)
5356 return e1000_write_eeprom_eewr(hw, offset, words, data);
5358 if (eeprom->type == e1000_eeprom_ich8)
5359 return e1000_write_eeprom_ich8(hw, offset, words, data);
5361 /* Prepare the EEPROM for writing */
5362 if (e1000_acquire_eeprom(hw) != E1000_SUCCESS)
5363 return -E1000_ERR_EEPROM;
5365 if (eeprom->type == e1000_eeprom_microwire) {
5366 status = e1000_write_eeprom_microwire(hw, offset, words, data);
5368 status = e1000_write_eeprom_spi(hw, offset, words, data);
5372 /* Done with writing */
5373 e1000_release_eeprom(hw);
5378 /******************************************************************************
5379 * Writes a 16 bit word to a given offset in an SPI EEPROM.
5381 * hw - Struct containing variables accessed by shared code
5382 * offset - offset within the EEPROM to be written to
5383 * words - number of words to write
5384 * data - pointer to array of 8 bit words to be written to the EEPROM
5386 *****************************************************************************/
5388 e1000_write_eeprom_spi(struct e1000_hw *hw,
5393 struct e1000_eeprom_info *eeprom = &hw->eeprom;
5396 DEBUGFUNC("e1000_write_eeprom_spi");
5398 while (widx < words) {
5399 uint8_t write_opcode = EEPROM_WRITE_OPCODE_SPI;
5401 if (e1000_spi_eeprom_ready(hw)) return -E1000_ERR_EEPROM;
5403 e1000_standby_eeprom(hw);
5405 /* Send the WRITE ENABLE command (8 bit opcode ) */
5406 e1000_shift_out_ee_bits(hw, EEPROM_WREN_OPCODE_SPI,
5407 eeprom->opcode_bits);
5409 e1000_standby_eeprom(hw);
5411 /* Some SPI eeproms use the 8th address bit embedded in the opcode */
5412 if ((eeprom->address_bits == 8) && (offset >= 128))
5413 write_opcode |= EEPROM_A8_OPCODE_SPI;
5415 /* Send the Write command (8-bit opcode + addr) */
5416 e1000_shift_out_ee_bits(hw, write_opcode, eeprom->opcode_bits);
5418 e1000_shift_out_ee_bits(hw, (uint16_t)((offset + widx)*2),
5419 eeprom->address_bits);
5423 /* Loop to allow for up to whole page write (32 bytes) of eeprom */
5424 while (widx < words) {
5425 uint16_t word_out = data[widx];
5426 word_out = (word_out >> 8) | (word_out << 8);
5427 e1000_shift_out_ee_bits(hw, word_out, 16);
5430 /* Some larger eeprom sizes are capable of a 32-byte PAGE WRITE
5431 * operation, while the smaller eeproms are capable of an 8-byte
5432 * PAGE WRITE operation. Break the inner loop to pass new address
5434 if ((((offset + widx)*2) % eeprom->page_size) == 0) {
5435 e1000_standby_eeprom(hw);
5441 return E1000_SUCCESS;
5444 /******************************************************************************
5445 * Writes a 16 bit word to a given offset in a Microwire EEPROM.
5447 * hw - Struct containing variables accessed by shared code
5448 * offset - offset within the EEPROM to be written to
5449 * words - number of words to write
5450 * data - pointer to array of 16 bit words to be written to the EEPROM
5452 *****************************************************************************/
5454 e1000_write_eeprom_microwire(struct e1000_hw *hw,
5459 struct e1000_eeprom_info *eeprom = &hw->eeprom;
5461 uint16_t words_written = 0;
5464 DEBUGFUNC("e1000_write_eeprom_microwire");
5466 /* Send the write enable command to the EEPROM (3-bit opcode plus
5467 * 6/8-bit dummy address beginning with 11). It's less work to include
5468 * the 11 of the dummy address as part of the opcode than it is to shift
5469 * it over the correct number of bits for the address. This puts the
5470 * EEPROM into write/erase mode.
5472 e1000_shift_out_ee_bits(hw, EEPROM_EWEN_OPCODE_MICROWIRE,
5473 (uint16_t)(eeprom->opcode_bits + 2));
5475 e1000_shift_out_ee_bits(hw, 0, (uint16_t)(eeprom->address_bits - 2));
5477 /* Prepare the EEPROM */
5478 e1000_standby_eeprom(hw);
5480 while (words_written < words) {
5481 /* Send the Write command (3-bit opcode + addr) */
5482 e1000_shift_out_ee_bits(hw, EEPROM_WRITE_OPCODE_MICROWIRE,
5483 eeprom->opcode_bits);
5485 e1000_shift_out_ee_bits(hw, (uint16_t)(offset + words_written),
5486 eeprom->address_bits);
5489 e1000_shift_out_ee_bits(hw, data[words_written], 16);
5491 /* Toggle the CS line. This in effect tells the EEPROM to execute
5492 * the previous command.
5494 e1000_standby_eeprom(hw);
5496 /* Read DO repeatedly until it is high (equal to '1'). The EEPROM will
5497 * signal that the command has been completed by raising the DO signal.
5498 * If DO does not go high in 10 milliseconds, then error out.
5500 for (i = 0; i < 200; i++) {
5501 eecd = E1000_READ_REG(hw, EECD);
5502 if (eecd & E1000_EECD_DO) break;
5506 DEBUGOUT("EEPROM Write did not complete\n");
5507 return -E1000_ERR_EEPROM;
5510 /* Recover from write */
5511 e1000_standby_eeprom(hw);
5516 /* Send the write disable command to the EEPROM (3-bit opcode plus
5517 * 6/8-bit dummy address beginning with 10). It's less work to include
5518 * the 10 of the dummy address as part of the opcode than it is to shift
5519 * it over the correct number of bits for the address. This takes the
5520 * EEPROM out of write/erase mode.
5522 e1000_shift_out_ee_bits(hw, EEPROM_EWDS_OPCODE_MICROWIRE,
5523 (uint16_t)(eeprom->opcode_bits + 2));
5525 e1000_shift_out_ee_bits(hw, 0, (uint16_t)(eeprom->address_bits - 2));
5527 return E1000_SUCCESS;
5530 /******************************************************************************
5531 * Flushes the cached eeprom to NVM. This is done by saving the modified values
5532 * in the eeprom cache and the non modified values in the currently active bank
5535 * hw - Struct containing variables accessed by shared code
5536 * offset - offset of word in the EEPROM to read
5537 * data - word read from the EEPROM
5538 * words - number of words to read
5539 *****************************************************************************/
5541 e1000_commit_shadow_ram(struct e1000_hw *hw)
5543 uint32_t attempts = 100000;
5547 int32_t error = E1000_SUCCESS;
5548 uint32_t old_bank_offset = 0;
5549 uint32_t new_bank_offset = 0;
5550 uint8_t low_byte = 0;
5551 uint8_t high_byte = 0;
5552 boolean_t sector_write_failed = FALSE;
5554 if (hw->mac_type == e1000_82573) {
5555 /* The flop register will be used to determine if flash type is STM */
5556 flop = E1000_READ_REG(hw, FLOP);
5557 for (i=0; i < attempts; i++) {
5558 eecd = E1000_READ_REG(hw, EECD);
5559 if ((eecd & E1000_EECD_FLUPD) == 0) {
5565 if (i == attempts) {
5566 return -E1000_ERR_EEPROM;
5569 /* If STM opcode located in bits 15:8 of flop, reset firmware */
5570 if ((flop & 0xFF00) == E1000_STM_OPCODE) {
5571 E1000_WRITE_REG(hw, HICR, E1000_HICR_FW_RESET);
5574 /* Perform the flash update */
5575 E1000_WRITE_REG(hw, EECD, eecd | E1000_EECD_FLUPD);
5577 for (i=0; i < attempts; i++) {
5578 eecd = E1000_READ_REG(hw, EECD);
5579 if ((eecd & E1000_EECD_FLUPD) == 0) {
5585 if (i == attempts) {
5586 return -E1000_ERR_EEPROM;
5590 if (hw->mac_type == e1000_ich8lan && hw->eeprom_shadow_ram != NULL) {
5591 /* We're writing to the opposite bank so if we're on bank 1,
5592 * write to bank 0 etc. We also need to erase the segment that
5593 * is going to be written */
5594 if (!(E1000_READ_REG(hw, EECD) & E1000_EECD_SEC1VAL)) {
5595 new_bank_offset = hw->flash_bank_size * 2;
5596 old_bank_offset = 0;
5597 e1000_erase_ich8_4k_segment(hw, 1);
5599 old_bank_offset = hw->flash_bank_size * 2;
5600 new_bank_offset = 0;
5601 e1000_erase_ich8_4k_segment(hw, 0);
5604 sector_write_failed = FALSE;
5605 /* Loop for every byte in the shadow RAM,
5606 * which is in units of words. */
5607 for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) {
5608 /* Determine whether to write the value stored
5609 * in the other NVM bank or a modified value stored
5610 * in the shadow RAM */
5611 if (hw->eeprom_shadow_ram[i].modified == TRUE) {
5612 low_byte = (uint8_t)hw->eeprom_shadow_ram[i].eeprom_word;
5614 error = e1000_verify_write_ich8_byte(hw,
5615 (i << 1) + new_bank_offset, low_byte);
5617 if (error != E1000_SUCCESS)
5618 sector_write_failed = TRUE;
5621 (uint8_t)(hw->eeprom_shadow_ram[i].eeprom_word >> 8);
5625 e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset,
5628 error = e1000_verify_write_ich8_byte(hw,
5629 (i << 1) + new_bank_offset, low_byte);
5631 if (error != E1000_SUCCESS)
5632 sector_write_failed = TRUE;
5634 e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset + 1,
5640 /* If the write of the low byte was successful, go ahread and
5641 * write the high byte while checking to make sure that if it
5642 * is the signature byte, then it is handled properly */
5643 if (sector_write_failed == FALSE) {
5644 /* If the word is 0x13, then make sure the signature bits
5645 * (15:14) are 11b until the commit has completed.
5646 * This will allow us to write 10b which indicates the
5647 * signature is valid. We want to do this after the write
5648 * has completed so that we don't mark the segment valid
5649 * while the write is still in progress */
5650 if (i == E1000_ICH_NVM_SIG_WORD)
5651 high_byte = E1000_ICH_NVM_SIG_MASK | high_byte;
5653 error = e1000_verify_write_ich8_byte(hw,
5654 (i << 1) + new_bank_offset + 1, high_byte);
5655 if (error != E1000_SUCCESS)
5656 sector_write_failed = TRUE;
5659 /* If the write failed then break from the loop and
5660 * return an error */
5665 /* Don't bother writing the segment valid bits if sector
5666 * programming failed. */
5667 if (sector_write_failed == FALSE) {
5668 /* Finally validate the new segment by setting bit 15:14
5669 * to 10b in word 0x13 , this can be done without an
5670 * erase as well since these bits are 11 to start with
5671 * and we need to change bit 14 to 0b */
5672 e1000_read_ich8_byte(hw,
5673 E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset,
5676 error = e1000_verify_write_ich8_byte(hw,
5677 E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset, high_byte);
5678 /* And invalidate the previously valid segment by setting
5679 * its signature word (0x13) high_byte to 0b. This can be
5680 * done without an erase because flash erase sets all bits
5681 * to 1's. We can write 1's to 0's without an erase */
5682 if (error == E1000_SUCCESS) {
5683 error = e1000_verify_write_ich8_byte(hw,
5684 E1000_ICH_NVM_SIG_WORD * 2 + 1 + old_bank_offset, 0);
5687 /* Clear the now not used entry in the cache */
5688 for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) {
5689 hw->eeprom_shadow_ram[i].modified = FALSE;
5690 hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF;
5698 /******************************************************************************
5699 * Reads the adapter's MAC address from the EEPROM and inverts the LSB for the
5700 * second function of dual function devices
5702 * hw - Struct containing variables accessed by shared code
5703 *****************************************************************************/
5705 e1000_read_mac_addr(struct e1000_hw * hw)
5708 uint16_t eeprom_data, i;
5710 DEBUGFUNC("e1000_read_mac_addr");
5712 for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) {
5714 if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) {
5715 DEBUGOUT("EEPROM Read Error\n");
5716 return -E1000_ERR_EEPROM;
5718 hw->perm_mac_addr[i] = (uint8_t) (eeprom_data & 0x00FF);
5719 hw->perm_mac_addr[i+1] = (uint8_t) (eeprom_data >> 8);
5722 switch (hw->mac_type) {
5726 case e1000_82546_rev_3:
5728 case e1000_80003es2lan:
5729 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)
5730 hw->perm_mac_addr[5] ^= 0x01;
5734 for (i = 0; i < NODE_ADDRESS_SIZE; i++)
5735 hw->mac_addr[i] = hw->perm_mac_addr[i];
5736 return E1000_SUCCESS;
5739 /******************************************************************************
5740 * Initializes receive address filters.
5742 * hw - Struct containing variables accessed by shared code
5744 * Places the MAC address in receive address register 0 and clears the rest
5745 * of the receive addresss registers. Clears the multicast table. Assumes
5746 * the receiver is in reset when the routine is called.
5747 *****************************************************************************/
5749 e1000_init_rx_addrs(struct e1000_hw *hw)
5754 DEBUGFUNC("e1000_init_rx_addrs");
5756 /* Setup the receive address. */
5757 DEBUGOUT("Programming MAC Address into RAR[0]\n");
5759 e1000_rar_set(hw, hw->mac_addr, 0);
5761 rar_num = E1000_RAR_ENTRIES;
5763 /* Reserve a spot for the Locally Administered Address to work around
5764 * an 82571 issue in which a reset on one port will reload the MAC on
5765 * the other port. */
5766 if ((hw->mac_type == e1000_82571) && (hw->laa_is_present == TRUE))
5768 if (hw->mac_type == e1000_ich8lan)
5769 rar_num = E1000_RAR_ENTRIES_ICH8LAN;
5771 /* Zero out the other 15 receive addresses. */
5772 DEBUGOUT("Clearing RAR[1-15]\n");
5773 for (i = 1; i < rar_num; i++) {
5774 E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0);
5775 E1000_WRITE_FLUSH(hw);
5776 E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0);
5777 E1000_WRITE_FLUSH(hw);
5781 /******************************************************************************
5782 * Hashes an address to determine its location in the multicast table
5784 * hw - Struct containing variables accessed by shared code
5785 * mc_addr - the multicast address to hash
5786 *****************************************************************************/
5788 e1000_hash_mc_addr(struct e1000_hw *hw,
5791 uint32_t hash_value = 0;
5793 /* The portion of the address that is used for the hash table is
5794 * determined by the mc_filter_type setting.
5796 switch (hw->mc_filter_type) {
5797 /* [0] [1] [2] [3] [4] [5]
5802 if (hw->mac_type == e1000_ich8lan) {
5803 /* [47:38] i.e. 0x158 for above example address */
5804 hash_value = ((mc_addr[4] >> 6) | (((uint16_t) mc_addr[5]) << 2));
5806 /* [47:36] i.e. 0x563 for above example address */
5807 hash_value = ((mc_addr[4] >> 4) | (((uint16_t) mc_addr[5]) << 4));
5811 if (hw->mac_type == e1000_ich8lan) {
5812 /* [46:37] i.e. 0x2B1 for above example address */
5813 hash_value = ((mc_addr[4] >> 5) | (((uint16_t) mc_addr[5]) << 3));
5815 /* [46:35] i.e. 0xAC6 for above example address */
5816 hash_value = ((mc_addr[4] >> 3) | (((uint16_t) mc_addr[5]) << 5));
5820 if (hw->mac_type == e1000_ich8lan) {
5821 /*[45:36] i.e. 0x163 for above example address */
5822 hash_value = ((mc_addr[4] >> 4) | (((uint16_t) mc_addr[5]) << 4));
5824 /* [45:34] i.e. 0x5D8 for above example address */
5825 hash_value = ((mc_addr[4] >> 2) | (((uint16_t) mc_addr[5]) << 6));
5829 if (hw->mac_type == e1000_ich8lan) {
5830 /* [43:34] i.e. 0x18D for above example address */
5831 hash_value = ((mc_addr[4] >> 2) | (((uint16_t) mc_addr[5]) << 6));
5833 /* [43:32] i.e. 0x634 for above example address */
5834 hash_value = ((mc_addr[4]) | (((uint16_t) mc_addr[5]) << 8));
5839 hash_value &= 0xFFF;
5840 if (hw->mac_type == e1000_ich8lan)
5841 hash_value &= 0x3FF;
5846 /******************************************************************************
5847 * Sets the bit in the multicast table corresponding to the hash value.
5849 * hw - Struct containing variables accessed by shared code
5850 * hash_value - Multicast address hash value
5851 *****************************************************************************/
5853 e1000_mta_set(struct e1000_hw *hw,
5854 uint32_t hash_value)
5856 uint32_t hash_bit, hash_reg;
5860 /* The MTA is a register array of 128 32-bit registers.
5861 * It is treated like an array of 4096 bits. We want to set
5862 * bit BitArray[hash_value]. So we figure out what register
5863 * the bit is in, read it, OR in the new bit, then write
5864 * back the new value. The register is determined by the
5865 * upper 7 bits of the hash value and the bit within that
5866 * register are determined by the lower 5 bits of the value.
5868 hash_reg = (hash_value >> 5) & 0x7F;
5869 if (hw->mac_type == e1000_ich8lan)
5872 hash_bit = hash_value & 0x1F;
5874 mta = E1000_READ_REG_ARRAY(hw, MTA, hash_reg);
5876 mta |= (1 << hash_bit);
5878 /* If we are on an 82544 and we are trying to write an odd offset
5879 * in the MTA, save off the previous entry before writing and
5880 * restore the old value after writing.
5882 if ((hw->mac_type == e1000_82544) && ((hash_reg & 0x1) == 1)) {
5883 temp = E1000_READ_REG_ARRAY(hw, MTA, (hash_reg - 1));
5884 E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta);
5885 E1000_WRITE_FLUSH(hw);
5886 E1000_WRITE_REG_ARRAY(hw, MTA, (hash_reg - 1), temp);
5887 E1000_WRITE_FLUSH(hw);
5889 E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta);
5890 E1000_WRITE_FLUSH(hw);
5894 /******************************************************************************
5895 * Puts an ethernet address into a receive address register.
5897 * hw - Struct containing variables accessed by shared code
5898 * addr - Address to put into receive address register
5899 * index - Receive address register to write
5900 *****************************************************************************/
5902 e1000_rar_set(struct e1000_hw *hw,
5906 uint32_t rar_low, rar_high;
5908 /* HW expects these in little endian so we reverse the byte order
5909 * from network order (big endian) to little endian
5911 rar_low = ((uint32_t) addr[0] |
5912 ((uint32_t) addr[1] << 8) |
5913 ((uint32_t) addr[2] << 16) | ((uint32_t) addr[3] << 24));
5914 rar_high = ((uint32_t) addr[4] | ((uint32_t) addr[5] << 8));
5916 /* Disable Rx and flush all Rx frames before enabling RSS to avoid Rx
5920 * If there are any Rx frames queued up or otherwise present in the HW
5921 * before RSS is enabled, and then we enable RSS, the HW Rx unit will
5922 * hang. To work around this issue, we have to disable receives and
5923 * flush out all Rx frames before we enable RSS. To do so, we modify we
5924 * redirect all Rx traffic to manageability and then reset the HW.
5925 * This flushes away Rx frames, and (since the redirections to
5926 * manageability persists across resets) keeps new ones from coming in
5927 * while we work. Then, we clear the Address Valid AV bit for all MAC
5928 * addresses and undo the re-direction to manageability.
5929 * Now, frames are coming in again, but the MAC won't accept them, so
5930 * far so good. We now proceed to initialize RSS (if necessary) and
5931 * configure the Rx unit. Last, we re-enable the AV bits and continue
5934 switch (hw->mac_type) {
5937 case e1000_80003es2lan:
5938 if (hw->leave_av_bit_off == TRUE)
5941 /* Indicate to hardware the Address is Valid. */
5942 rar_high |= E1000_RAH_AV;
5946 E1000_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low);
5947 E1000_WRITE_FLUSH(hw);
5948 E1000_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high);
5949 E1000_WRITE_FLUSH(hw);
5952 /******************************************************************************
5953 * Writes a value to the specified offset in the VLAN filter table.
5955 * hw - Struct containing variables accessed by shared code
5956 * offset - Offset in VLAN filer table to write
5957 * value - Value to write into VLAN filter table
5958 *****************************************************************************/
5960 e1000_write_vfta(struct e1000_hw *hw,
5966 if (hw->mac_type == e1000_ich8lan)
5969 if ((hw->mac_type == e1000_82544) && ((offset & 0x1) == 1)) {
5970 temp = E1000_READ_REG_ARRAY(hw, VFTA, (offset - 1));
5971 E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value);
5972 E1000_WRITE_FLUSH(hw);
5973 E1000_WRITE_REG_ARRAY(hw, VFTA, (offset - 1), temp);
5974 E1000_WRITE_FLUSH(hw);
5976 E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value);
5977 E1000_WRITE_FLUSH(hw);
5981 /******************************************************************************
5982 * Clears the VLAN filer table
5984 * hw - Struct containing variables accessed by shared code
5985 *****************************************************************************/
5987 e1000_clear_vfta(struct e1000_hw *hw)
5990 uint32_t vfta_value = 0;
5991 uint32_t vfta_offset = 0;
5992 uint32_t vfta_bit_in_reg = 0;
5994 if (hw->mac_type == e1000_ich8lan)
5997 if (hw->mac_type == e1000_82573) {
5998 if (hw->mng_cookie.vlan_id != 0) {
5999 /* The VFTA is a 4096b bit-field, each identifying a single VLAN
6000 * ID. The following operations determine which 32b entry
6001 * (i.e. offset) into the array we want to set the VLAN ID
6002 * (i.e. bit) of the manageability unit. */
6003 vfta_offset = (hw->mng_cookie.vlan_id >>
6004 E1000_VFTA_ENTRY_SHIFT) &
6005 E1000_VFTA_ENTRY_MASK;
6006 vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id &
6007 E1000_VFTA_ENTRY_BIT_SHIFT_MASK);
6010 for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
6011 /* If the offset we want to clear is the same offset of the
6012 * manageability VLAN ID, then clear all bits except that of the
6013 * manageability unit */
6014 vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0;
6015 E1000_WRITE_REG_ARRAY(hw, VFTA, offset, vfta_value);
6016 E1000_WRITE_FLUSH(hw);
6021 e1000_id_led_init(struct e1000_hw * hw)
6024 const uint32_t ledctl_mask = 0x000000FF;
6025 const uint32_t ledctl_on = E1000_LEDCTL_MODE_LED_ON;
6026 const uint32_t ledctl_off = E1000_LEDCTL_MODE_LED_OFF;
6027 uint16_t eeprom_data, i, temp;
6028 const uint16_t led_mask = 0x0F;
6030 DEBUGFUNC("e1000_id_led_init");
6032 if (hw->mac_type < e1000_82540) {
6034 return E1000_SUCCESS;
6037 ledctl = E1000_READ_REG(hw, LEDCTL);
6038 hw->ledctl_default = ledctl;
6039 hw->ledctl_mode1 = hw->ledctl_default;
6040 hw->ledctl_mode2 = hw->ledctl_default;
6042 if (e1000_read_eeprom(hw, EEPROM_ID_LED_SETTINGS, 1, &eeprom_data) < 0) {
6043 DEBUGOUT("EEPROM Read Error\n");
6044 return -E1000_ERR_EEPROM;
6047 if ((hw->mac_type == e1000_82573) &&
6048 (eeprom_data == ID_LED_RESERVED_82573))
6049 eeprom_data = ID_LED_DEFAULT_82573;
6050 else if ((eeprom_data == ID_LED_RESERVED_0000) ||
6051 (eeprom_data == ID_LED_RESERVED_FFFF)) {
6052 if (hw->mac_type == e1000_ich8lan)
6053 eeprom_data = ID_LED_DEFAULT_ICH8LAN;
6055 eeprom_data = ID_LED_DEFAULT;
6058 for (i = 0; i < 4; i++) {
6059 temp = (eeprom_data >> (i << 2)) & led_mask;
6061 case ID_LED_ON1_DEF2:
6062 case ID_LED_ON1_ON2:
6063 case ID_LED_ON1_OFF2:
6064 hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3));
6065 hw->ledctl_mode1 |= ledctl_on << (i << 3);
6067 case ID_LED_OFF1_DEF2:
6068 case ID_LED_OFF1_ON2:
6069 case ID_LED_OFF1_OFF2:
6070 hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3));
6071 hw->ledctl_mode1 |= ledctl_off << (i << 3);
6078 case ID_LED_DEF1_ON2:
6079 case ID_LED_ON1_ON2:
6080 case ID_LED_OFF1_ON2:
6081 hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3));
6082 hw->ledctl_mode2 |= ledctl_on << (i << 3);
6084 case ID_LED_DEF1_OFF2:
6085 case ID_LED_ON1_OFF2:
6086 case ID_LED_OFF1_OFF2:
6087 hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3));
6088 hw->ledctl_mode2 |= ledctl_off << (i << 3);
6095 return E1000_SUCCESS;
6098 /******************************************************************************
6099 * Prepares SW controlable LED for use and saves the current state of the LED.
6101 * hw - Struct containing variables accessed by shared code
6102 *****************************************************************************/
6104 e1000_setup_led(struct e1000_hw *hw)
6107 int32_t ret_val = E1000_SUCCESS;
6109 DEBUGFUNC("e1000_setup_led");
6111 switch (hw->mac_type) {
6112 case e1000_82542_rev2_0:
6113 case e1000_82542_rev2_1:
6116 /* No setup necessary */
6120 case e1000_82541_rev_2:
6121 case e1000_82547_rev_2:
6122 /* Turn off PHY Smart Power Down (if enabled) */
6123 ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO,
6124 &hw->phy_spd_default);
6127 ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO,
6128 (uint16_t)(hw->phy_spd_default &
6129 ~IGP01E1000_GMII_SPD));
6134 if (hw->media_type == e1000_media_type_fiber) {
6135 ledctl = E1000_READ_REG(hw, LEDCTL);
6136 /* Save current LEDCTL settings */
6137 hw->ledctl_default = ledctl;
6139 ledctl &= ~(E1000_LEDCTL_LED0_IVRT |
6140 E1000_LEDCTL_LED0_BLINK |
6141 E1000_LEDCTL_LED0_MODE_MASK);
6142 ledctl |= (E1000_LEDCTL_MODE_LED_OFF <<
6143 E1000_LEDCTL_LED0_MODE_SHIFT);
6144 E1000_WRITE_REG(hw, LEDCTL, ledctl);
6145 } else if (hw->media_type == e1000_media_type_copper)
6146 E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode1);
6150 return E1000_SUCCESS;
6154 /******************************************************************************
6155 * Used on 82571 and later Si that has LED blink bits.
6156 * Callers must use their own timer and should have already called
6157 * e1000_id_led_init()
6158 * Call e1000_cleanup led() to stop blinking
6160 * hw - Struct containing variables accessed by shared code
6161 *****************************************************************************/
6163 e1000_blink_led_start(struct e1000_hw *hw)
6166 uint32_t ledctl_blink = 0;
6168 DEBUGFUNC("e1000_id_led_blink_on");
6170 if (hw->mac_type < e1000_82571) {
6172 return E1000_SUCCESS;
6174 if (hw->media_type == e1000_media_type_fiber) {
6175 /* always blink LED0 for PCI-E fiber */
6176 ledctl_blink = E1000_LEDCTL_LED0_BLINK |
6177 (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT);
6179 /* set the blink bit for each LED that's "on" (0x0E) in ledctl_mode2 */
6180 ledctl_blink = hw->ledctl_mode2;
6181 for (i=0; i < 4; i++)
6182 if (((hw->ledctl_mode2 >> (i * 8)) & 0xFF) ==
6183 E1000_LEDCTL_MODE_LED_ON)
6184 ledctl_blink |= (E1000_LEDCTL_LED0_BLINK << (i * 8));
6187 E1000_WRITE_REG(hw, LEDCTL, ledctl_blink);
6189 return E1000_SUCCESS;
6192 /******************************************************************************
6193 * Restores the saved state of the SW controlable LED.
6195 * hw - Struct containing variables accessed by shared code
6196 *****************************************************************************/
6198 e1000_cleanup_led(struct e1000_hw *hw)
6200 int32_t ret_val = E1000_SUCCESS;
6202 DEBUGFUNC("e1000_cleanup_led");
6204 switch (hw->mac_type) {
6205 case e1000_82542_rev2_0:
6206 case e1000_82542_rev2_1:
6209 /* No cleanup necessary */
6213 case e1000_82541_rev_2:
6214 case e1000_82547_rev_2:
6215 /* Turn on PHY Smart Power Down (if previously enabled) */
6216 ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO,
6217 hw->phy_spd_default);
6222 if (hw->phy_type == e1000_phy_ife) {
6223 e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
6226 /* Restore LEDCTL settings */
6227 E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_default);
6231 return E1000_SUCCESS;
6234 /******************************************************************************
6235 * Turns on the software controllable LED
6237 * hw - Struct containing variables accessed by shared code
6238 *****************************************************************************/
6240 e1000_led_on(struct e1000_hw *hw)
6242 uint32_t ctrl = E1000_READ_REG(hw, CTRL);
6244 DEBUGFUNC("e1000_led_on");
6246 switch (hw->mac_type) {
6247 case e1000_82542_rev2_0:
6248 case e1000_82542_rev2_1:
6250 /* Set SW Defineable Pin 0 to turn on the LED */
6251 ctrl |= E1000_CTRL_SWDPIN0;
6252 ctrl |= E1000_CTRL_SWDPIO0;
6255 if (hw->media_type == e1000_media_type_fiber) {
6256 /* Set SW Defineable Pin 0 to turn on the LED */
6257 ctrl |= E1000_CTRL_SWDPIN0;
6258 ctrl |= E1000_CTRL_SWDPIO0;
6260 /* Clear SW Defineable Pin 0 to turn on the LED */
6261 ctrl &= ~E1000_CTRL_SWDPIN0;
6262 ctrl |= E1000_CTRL_SWDPIO0;
6266 if (hw->media_type == e1000_media_type_fiber) {
6267 /* Clear SW Defineable Pin 0 to turn on the LED */
6268 ctrl &= ~E1000_CTRL_SWDPIN0;
6269 ctrl |= E1000_CTRL_SWDPIO0;
6270 } else if (hw->phy_type == e1000_phy_ife) {
6271 e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED,
6272 (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON));
6273 } else if (hw->media_type == e1000_media_type_copper) {
6274 E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode2);
6275 return E1000_SUCCESS;
6280 E1000_WRITE_REG(hw, CTRL, ctrl);
6282 return E1000_SUCCESS;
6285 /******************************************************************************
6286 * Turns off the software controllable LED
6288 * hw - Struct containing variables accessed by shared code
6289 *****************************************************************************/
6291 e1000_led_off(struct e1000_hw *hw)
6293 uint32_t ctrl = E1000_READ_REG(hw, CTRL);
6295 DEBUGFUNC("e1000_led_off");
6297 switch (hw->mac_type) {
6298 case e1000_82542_rev2_0:
6299 case e1000_82542_rev2_1:
6301 /* Clear SW Defineable Pin 0 to turn off the LED */
6302 ctrl &= ~E1000_CTRL_SWDPIN0;
6303 ctrl |= E1000_CTRL_SWDPIO0;
6306 if (hw->media_type == e1000_media_type_fiber) {
6307 /* Clear SW Defineable Pin 0 to turn off the LED */
6308 ctrl &= ~E1000_CTRL_SWDPIN0;
6309 ctrl |= E1000_CTRL_SWDPIO0;
6311 /* Set SW Defineable Pin 0 to turn off the LED */
6312 ctrl |= E1000_CTRL_SWDPIN0;
6313 ctrl |= E1000_CTRL_SWDPIO0;
6317 if (hw->media_type == e1000_media_type_fiber) {
6318 /* Set SW Defineable Pin 0 to turn off the LED */
6319 ctrl |= E1000_CTRL_SWDPIN0;
6320 ctrl |= E1000_CTRL_SWDPIO0;
6321 } else if (hw->phy_type == e1000_phy_ife) {
6322 e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED,
6323 (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_OFF));
6324 } else if (hw->media_type == e1000_media_type_copper) {
6325 E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode1);
6326 return E1000_SUCCESS;
6331 E1000_WRITE_REG(hw, CTRL, ctrl);
6333 return E1000_SUCCESS;
6336 /******************************************************************************
6337 * Clears all hardware statistics counters.
6339 * hw - Struct containing variables accessed by shared code
6340 *****************************************************************************/
6342 e1000_clear_hw_cntrs(struct e1000_hw *hw)
6344 volatile uint32_t temp;
6346 temp = E1000_READ_REG(hw, CRCERRS);
6347 temp = E1000_READ_REG(hw, SYMERRS);
6348 temp = E1000_READ_REG(hw, MPC);
6349 temp = E1000_READ_REG(hw, SCC);
6350 temp = E1000_READ_REG(hw, ECOL);
6351 temp = E1000_READ_REG(hw, MCC);
6352 temp = E1000_READ_REG(hw, LATECOL);
6353 temp = E1000_READ_REG(hw, COLC);
6354 temp = E1000_READ_REG(hw, DC);
6355 temp = E1000_READ_REG(hw, SEC);
6356 temp = E1000_READ_REG(hw, RLEC);
6357 temp = E1000_READ_REG(hw, XONRXC);
6358 temp = E1000_READ_REG(hw, XONTXC);
6359 temp = E1000_READ_REG(hw, XOFFRXC);
6360 temp = E1000_READ_REG(hw, XOFFTXC);
6361 temp = E1000_READ_REG(hw, FCRUC);
6363 if (hw->mac_type != e1000_ich8lan) {
6364 temp = E1000_READ_REG(hw, PRC64);
6365 temp = E1000_READ_REG(hw, PRC127);
6366 temp = E1000_READ_REG(hw, PRC255);
6367 temp = E1000_READ_REG(hw, PRC511);
6368 temp = E1000_READ_REG(hw, PRC1023);
6369 temp = E1000_READ_REG(hw, PRC1522);
6372 temp = E1000_READ_REG(hw, GPRC);
6373 temp = E1000_READ_REG(hw, BPRC);
6374 temp = E1000_READ_REG(hw, MPRC);
6375 temp = E1000_READ_REG(hw, GPTC);
6376 temp = E1000_READ_REG(hw, GORCL);
6377 temp = E1000_READ_REG(hw, GORCH);
6378 temp = E1000_READ_REG(hw, GOTCL);
6379 temp = E1000_READ_REG(hw, GOTCH);
6380 temp = E1000_READ_REG(hw, RNBC);
6381 temp = E1000_READ_REG(hw, RUC);
6382 temp = E1000_READ_REG(hw, RFC);
6383 temp = E1000_READ_REG(hw, ROC);
6384 temp = E1000_READ_REG(hw, RJC);
6385 temp = E1000_READ_REG(hw, TORL);
6386 temp = E1000_READ_REG(hw, TORH);
6387 temp = E1000_READ_REG(hw, TOTL);
6388 temp = E1000_READ_REG(hw, TOTH);
6389 temp = E1000_READ_REG(hw, TPR);
6390 temp = E1000_READ_REG(hw, TPT);
6392 if (hw->mac_type != e1000_ich8lan) {
6393 temp = E1000_READ_REG(hw, PTC64);
6394 temp = E1000_READ_REG(hw, PTC127);
6395 temp = E1000_READ_REG(hw, PTC255);
6396 temp = E1000_READ_REG(hw, PTC511);
6397 temp = E1000_READ_REG(hw, PTC1023);
6398 temp = E1000_READ_REG(hw, PTC1522);
6401 temp = E1000_READ_REG(hw, MPTC);
6402 temp = E1000_READ_REG(hw, BPTC);
6404 if (hw->mac_type < e1000_82543) return;
6406 temp = E1000_READ_REG(hw, ALGNERRC);
6407 temp = E1000_READ_REG(hw, RXERRC);
6408 temp = E1000_READ_REG(hw, TNCRS);
6409 temp = E1000_READ_REG(hw, CEXTERR);
6410 temp = E1000_READ_REG(hw, TSCTC);
6411 temp = E1000_READ_REG(hw, TSCTFC);
6413 if (hw->mac_type <= e1000_82544) return;
6415 temp = E1000_READ_REG(hw, MGTPRC);
6416 temp = E1000_READ_REG(hw, MGTPDC);
6417 temp = E1000_READ_REG(hw, MGTPTC);
6419 if (hw->mac_type <= e1000_82547_rev_2) return;
6421 temp = E1000_READ_REG(hw, IAC);
6422 temp = E1000_READ_REG(hw, ICRXOC);
6424 if (hw->mac_type == e1000_ich8lan) return;
6426 temp = E1000_READ_REG(hw, ICRXPTC);
6427 temp = E1000_READ_REG(hw, ICRXATC);
6428 temp = E1000_READ_REG(hw, ICTXPTC);
6429 temp = E1000_READ_REG(hw, ICTXATC);
6430 temp = E1000_READ_REG(hw, ICTXQEC);
6431 temp = E1000_READ_REG(hw, ICTXQMTC);
6432 temp = E1000_READ_REG(hw, ICRXDMTC);
6435 /******************************************************************************
6436 * Resets Adaptive IFS to its default state.
6438 * hw - Struct containing variables accessed by shared code
6440 * Call this after e1000_init_hw. You may override the IFS defaults by setting
6441 * hw->ifs_params_forced to TRUE. However, you must initialize hw->
6442 * current_ifs_val, ifs_min_val, ifs_max_val, ifs_step_size, and ifs_ratio
6443 * before calling this function.
6444 *****************************************************************************/
6446 e1000_reset_adaptive(struct e1000_hw *hw)
6448 DEBUGFUNC("e1000_reset_adaptive");
6450 if (hw->adaptive_ifs) {
6451 if (!hw->ifs_params_forced) {
6452 hw->current_ifs_val = 0;
6453 hw->ifs_min_val = IFS_MIN;
6454 hw->ifs_max_val = IFS_MAX;
6455 hw->ifs_step_size = IFS_STEP;
6456 hw->ifs_ratio = IFS_RATIO;
6458 hw->in_ifs_mode = FALSE;
6459 E1000_WRITE_REG(hw, AIT, 0);
6461 DEBUGOUT("Not in Adaptive IFS mode!\n");
6465 /******************************************************************************
6466 * Called during the callback/watchdog routine to update IFS value based on
6467 * the ratio of transmits to collisions.
6469 * hw - Struct containing variables accessed by shared code
6470 * tx_packets - Number of transmits since last callback
6471 * total_collisions - Number of collisions since last callback
6472 *****************************************************************************/
6474 e1000_update_adaptive(struct e1000_hw *hw)
6476 DEBUGFUNC("e1000_update_adaptive");
6478 if (hw->adaptive_ifs) {
6479 if ((hw->collision_delta * hw->ifs_ratio) > hw->tx_packet_delta) {
6480 if (hw->tx_packet_delta > MIN_NUM_XMITS) {
6481 hw->in_ifs_mode = TRUE;
6482 if (hw->current_ifs_val < hw->ifs_max_val) {
6483 if (hw->current_ifs_val == 0)
6484 hw->current_ifs_val = hw->ifs_min_val;
6486 hw->current_ifs_val += hw->ifs_step_size;
6487 E1000_WRITE_REG(hw, AIT, hw->current_ifs_val);
6491 if (hw->in_ifs_mode && (hw->tx_packet_delta <= MIN_NUM_XMITS)) {
6492 hw->current_ifs_val = 0;
6493 hw->in_ifs_mode = FALSE;
6494 E1000_WRITE_REG(hw, AIT, 0);
6498 DEBUGOUT("Not in Adaptive IFS mode!\n");
6502 /******************************************************************************
6503 * Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT
6505 * hw - Struct containing variables accessed by shared code
6506 * frame_len - The length of the frame in question
6507 * mac_addr - The Ethernet destination address of the frame in question
6508 *****************************************************************************/
6510 e1000_tbi_adjust_stats(struct e1000_hw *hw,
6511 struct e1000_hw_stats *stats,
6517 /* First adjust the frame length. */
6519 /* We need to adjust the statistics counters, since the hardware
6520 * counters overcount this packet as a CRC error and undercount
6521 * the packet as a good packet
6523 /* This packet should not be counted as a CRC error. */
6525 /* This packet does count as a Good Packet Received. */
6528 /* Adjust the Good Octets received counters */
6529 carry_bit = 0x80000000 & stats->gorcl;
6530 stats->gorcl += frame_len;
6531 /* If the high bit of Gorcl (the low 32 bits of the Good Octets
6532 * Received Count) was one before the addition,
6533 * AND it is zero after, then we lost the carry out,
6534 * need to add one to Gorch (Good Octets Received Count High).
6535 * This could be simplified if all environments supported
6538 if (carry_bit && ((stats->gorcl & 0x80000000) == 0))
6540 /* Is this a broadcast or multicast? Check broadcast first,
6541 * since the test for a multicast frame will test positive on
6542 * a broadcast frame.
6544 if ((mac_addr[0] == (uint8_t) 0xff) && (mac_addr[1] == (uint8_t) 0xff))
6545 /* Broadcast packet */
6547 else if (*mac_addr & 0x01)
6548 /* Multicast packet */
6551 if (frame_len == hw->max_frame_size) {
6552 /* In this case, the hardware has overcounted the number of
6559 /* Adjust the bin counters when the extra byte put the frame in the
6560 * wrong bin. Remember that the frame_len was adjusted above.
6562 if (frame_len == 64) {
6565 } else if (frame_len == 127) {
6568 } else if (frame_len == 255) {
6571 } else if (frame_len == 511) {
6574 } else if (frame_len == 1023) {
6577 } else if (frame_len == 1522) {
6582 /******************************************************************************
6583 * Gets the current PCI bus type, speed, and width of the hardware
6585 * hw - Struct containing variables accessed by shared code
6586 *****************************************************************************/
6588 e1000_get_bus_info(struct e1000_hw *hw)
6591 uint16_t pci_ex_link_status;
6594 switch (hw->mac_type) {
6595 case e1000_82542_rev2_0:
6596 case e1000_82542_rev2_1:
6597 hw->bus_type = e1000_bus_type_pci;
6598 hw->bus_speed = e1000_bus_speed_unknown;
6599 hw->bus_width = e1000_bus_width_unknown;
6604 case e1000_80003es2lan:
6605 hw->bus_type = e1000_bus_type_pci_express;
6606 hw->bus_speed = e1000_bus_speed_2500;
6607 ret_val = e1000_read_pcie_cap_reg(hw,
6609 &pci_ex_link_status);
6611 hw->bus_width = e1000_bus_width_unknown;
6613 hw->bus_width = (pci_ex_link_status & PCI_EX_LINK_WIDTH_MASK) >>
6614 PCI_EX_LINK_WIDTH_SHIFT;
6617 hw->bus_type = e1000_bus_type_pci_express;
6618 hw->bus_speed = e1000_bus_speed_2500;
6619 hw->bus_width = e1000_bus_width_pciex_1;
6622 status = E1000_READ_REG(hw, STATUS);
6623 hw->bus_type = (status & E1000_STATUS_PCIX_MODE) ?
6624 e1000_bus_type_pcix : e1000_bus_type_pci;
6626 if (hw->device_id == E1000_DEV_ID_82546EB_QUAD_COPPER) {
6627 hw->bus_speed = (hw->bus_type == e1000_bus_type_pci) ?
6628 e1000_bus_speed_66 : e1000_bus_speed_120;
6629 } else if (hw->bus_type == e1000_bus_type_pci) {
6630 hw->bus_speed = (status & E1000_STATUS_PCI66) ?
6631 e1000_bus_speed_66 : e1000_bus_speed_33;
6633 switch (status & E1000_STATUS_PCIX_SPEED) {
6634 case E1000_STATUS_PCIX_SPEED_66:
6635 hw->bus_speed = e1000_bus_speed_66;
6637 case E1000_STATUS_PCIX_SPEED_100:
6638 hw->bus_speed = e1000_bus_speed_100;
6640 case E1000_STATUS_PCIX_SPEED_133:
6641 hw->bus_speed = e1000_bus_speed_133;
6644 hw->bus_speed = e1000_bus_speed_reserved;
6648 hw->bus_width = (status & E1000_STATUS_BUS64) ?
6649 e1000_bus_width_64 : e1000_bus_width_32;
6654 /******************************************************************************
6655 * Writes a value to one of the devices registers using port I/O (as opposed to
6656 * memory mapped I/O). Only 82544 and newer devices support port I/O.
6658 * hw - Struct containing variables accessed by shared code
6659 * offset - offset to write to
6660 * value - value to write
6661 *****************************************************************************/
6663 e1000_write_reg_io(struct e1000_hw *hw,
6667 unsigned long io_addr = hw->io_base;
6668 unsigned long io_data = hw->io_base + 4;
6670 e1000_io_write(hw, io_addr, offset);
6671 e1000_io_write(hw, io_data, value);
6674 /******************************************************************************
6675 * Estimates the cable length.
6677 * hw - Struct containing variables accessed by shared code
6678 * min_length - The estimated minimum length
6679 * max_length - The estimated maximum length
6681 * returns: - E1000_ERR_XXX
6684 * This function always returns a ranged length (minimum & maximum).
6685 * So for M88 phy's, this function interprets the one value returned from the
6686 * register to the minimum and maximum range.
6687 * For IGP phy's, the function calculates the range by the AGC registers.
6688 *****************************************************************************/
6690 e1000_get_cable_length(struct e1000_hw *hw,
6691 uint16_t *min_length,
6692 uint16_t *max_length)
6695 uint16_t agc_value = 0;
6696 uint16_t i, phy_data;
6697 uint16_t cable_length;
6699 DEBUGFUNC("e1000_get_cable_length");
6701 *min_length = *max_length = 0;
6703 /* Use old method for Phy older than IGP */
6704 if (hw->phy_type == e1000_phy_m88) {
6706 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS,
6710 cable_length = (phy_data & M88E1000_PSSR_CABLE_LENGTH) >>
6711 M88E1000_PSSR_CABLE_LENGTH_SHIFT;
6713 /* Convert the enum value to ranged values */
6714 switch (cable_length) {
6715 case e1000_cable_length_50:
6717 *max_length = e1000_igp_cable_length_50;
6719 case e1000_cable_length_50_80:
6720 *min_length = e1000_igp_cable_length_50;
6721 *max_length = e1000_igp_cable_length_80;
6723 case e1000_cable_length_80_110:
6724 *min_length = e1000_igp_cable_length_80;
6725 *max_length = e1000_igp_cable_length_110;
6727 case e1000_cable_length_110_140:
6728 *min_length = e1000_igp_cable_length_110;
6729 *max_length = e1000_igp_cable_length_140;
6731 case e1000_cable_length_140:
6732 *min_length = e1000_igp_cable_length_140;
6733 *max_length = e1000_igp_cable_length_170;
6736 return -E1000_ERR_PHY;
6739 } else if (hw->phy_type == e1000_phy_gg82563) {
6740 ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE,
6744 cable_length = phy_data & GG82563_DSPD_CABLE_LENGTH;
6746 switch (cable_length) {
6747 case e1000_gg_cable_length_60:
6749 *max_length = e1000_igp_cable_length_60;
6751 case e1000_gg_cable_length_60_115:
6752 *min_length = e1000_igp_cable_length_60;
6753 *max_length = e1000_igp_cable_length_115;
6755 case e1000_gg_cable_length_115_150:
6756 *min_length = e1000_igp_cable_length_115;
6757 *max_length = e1000_igp_cable_length_150;
6759 case e1000_gg_cable_length_150:
6760 *min_length = e1000_igp_cable_length_150;
6761 *max_length = e1000_igp_cable_length_180;
6764 return -E1000_ERR_PHY;
6767 } else if (hw->phy_type == e1000_phy_igp) { /* For IGP PHY */
6768 uint16_t cur_agc_value;
6769 uint16_t min_agc_value = IGP01E1000_AGC_LENGTH_TABLE_SIZE;
6770 uint16_t agc_reg_array[IGP01E1000_PHY_CHANNEL_NUM] =
6771 {IGP01E1000_PHY_AGC_A,
6772 IGP01E1000_PHY_AGC_B,
6773 IGP01E1000_PHY_AGC_C,
6774 IGP01E1000_PHY_AGC_D};
6775 /* Read the AGC registers for all channels */
6776 for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) {
6778 ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data);
6782 cur_agc_value = phy_data >> IGP01E1000_AGC_LENGTH_SHIFT;
6784 /* Value bound check. */
6785 if ((cur_agc_value >= IGP01E1000_AGC_LENGTH_TABLE_SIZE - 1) ||
6786 (cur_agc_value == 0))
6787 return -E1000_ERR_PHY;
6789 agc_value += cur_agc_value;
6791 /* Update minimal AGC value. */
6792 if (min_agc_value > cur_agc_value)
6793 min_agc_value = cur_agc_value;
6796 /* Remove the minimal AGC result for length < 50m */
6797 if (agc_value < IGP01E1000_PHY_CHANNEL_NUM * e1000_igp_cable_length_50) {
6798 agc_value -= min_agc_value;
6800 /* Get the average length of the remaining 3 channels */
6801 agc_value /= (IGP01E1000_PHY_CHANNEL_NUM - 1);
6803 /* Get the average length of all the 4 channels. */
6804 agc_value /= IGP01E1000_PHY_CHANNEL_NUM;
6807 /* Set the range of the calculated length. */
6808 *min_length = ((e1000_igp_cable_length_table[agc_value] -
6809 IGP01E1000_AGC_RANGE) > 0) ?
6810 (e1000_igp_cable_length_table[agc_value] -
6811 IGP01E1000_AGC_RANGE) : 0;
6812 *max_length = e1000_igp_cable_length_table[agc_value] +
6813 IGP01E1000_AGC_RANGE;
6814 } else if (hw->phy_type == e1000_phy_igp_2 ||
6815 hw->phy_type == e1000_phy_igp_3) {
6816 uint16_t cur_agc_index, max_agc_index = 0;
6817 uint16_t min_agc_index = IGP02E1000_AGC_LENGTH_TABLE_SIZE - 1;
6818 uint16_t agc_reg_array[IGP02E1000_PHY_CHANNEL_NUM] =
6819 {IGP02E1000_PHY_AGC_A,
6820 IGP02E1000_PHY_AGC_B,
6821 IGP02E1000_PHY_AGC_C,
6822 IGP02E1000_PHY_AGC_D};
6823 /* Read the AGC registers for all channels */
6824 for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) {
6825 ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data);
6829 /* Getting bits 15:9, which represent the combination of course and
6830 * fine gain values. The result is a number that can be put into
6831 * the lookup table to obtain the approximate cable length. */
6832 cur_agc_index = (phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) &
6833 IGP02E1000_AGC_LENGTH_MASK;
6835 /* Array index bound check. */
6836 if ((cur_agc_index >= IGP02E1000_AGC_LENGTH_TABLE_SIZE) ||
6837 (cur_agc_index == 0))
6838 return -E1000_ERR_PHY;
6840 /* Remove min & max AGC values from calculation. */
6841 if (e1000_igp_2_cable_length_table[min_agc_index] >
6842 e1000_igp_2_cable_length_table[cur_agc_index])
6843 min_agc_index = cur_agc_index;
6844 if (e1000_igp_2_cable_length_table[max_agc_index] <
6845 e1000_igp_2_cable_length_table[cur_agc_index])
6846 max_agc_index = cur_agc_index;
6848 agc_value += e1000_igp_2_cable_length_table[cur_agc_index];
6851 agc_value -= (e1000_igp_2_cable_length_table[min_agc_index] +
6852 e1000_igp_2_cable_length_table[max_agc_index]);
6853 agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2);
6855 /* Calculate cable length with the error range of +/- 10 meters. */
6856 *min_length = ((agc_value - IGP02E1000_AGC_RANGE) > 0) ?
6857 (agc_value - IGP02E1000_AGC_RANGE) : 0;
6858 *max_length = agc_value + IGP02E1000_AGC_RANGE;
6861 return E1000_SUCCESS;
6864 /******************************************************************************
6865 * Check the cable polarity
6867 * hw - Struct containing variables accessed by shared code
6868 * polarity - output parameter : 0 - Polarity is not reversed
6869 * 1 - Polarity is reversed.
6871 * returns: - E1000_ERR_XXX
6874 * For phy's older then IGP, this function simply reads the polarity bit in the
6875 * Phy Status register. For IGP phy's, this bit is valid only if link speed is
6876 * 10 Mbps. If the link speed is 100 Mbps there is no polarity so this bit will
6877 * return 0. If the link speed is 1000 Mbps the polarity status is in the
6878 * IGP01E1000_PHY_PCS_INIT_REG.
6879 *****************************************************************************/
6881 e1000_check_polarity(struct e1000_hw *hw,
6882 e1000_rev_polarity *polarity)
6887 DEBUGFUNC("e1000_check_polarity");
6889 if ((hw->phy_type == e1000_phy_m88) ||
6890 (hw->phy_type == e1000_phy_gg82563)) {
6891 /* return the Polarity bit in the Status register. */
6892 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS,
6896 *polarity = ((phy_data & M88E1000_PSSR_REV_POLARITY) >>
6897 M88E1000_PSSR_REV_POLARITY_SHIFT) ?
6898 e1000_rev_polarity_reversed : e1000_rev_polarity_normal;
6900 } else if (hw->phy_type == e1000_phy_igp ||
6901 hw->phy_type == e1000_phy_igp_3 ||
6902 hw->phy_type == e1000_phy_igp_2) {
6903 /* Read the Status register to check the speed */
6904 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS,
6909 /* If speed is 1000 Mbps, must read the IGP01E1000_PHY_PCS_INIT_REG to
6910 * find the polarity status */
6911 if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) ==
6912 IGP01E1000_PSSR_SPEED_1000MBPS) {
6914 /* Read the GIG initialization PCS register (0x00B4) */
6915 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG,
6920 /* Check the polarity bits */
6921 *polarity = (phy_data & IGP01E1000_PHY_POLARITY_MASK) ?
6922 e1000_rev_polarity_reversed : e1000_rev_polarity_normal;
6924 /* For 10 Mbps, read the polarity bit in the status register. (for
6925 * 100 Mbps this bit is always 0) */
6926 *polarity = (phy_data & IGP01E1000_PSSR_POLARITY_REVERSED) ?
6927 e1000_rev_polarity_reversed : e1000_rev_polarity_normal;
6929 } else if (hw->phy_type == e1000_phy_ife) {
6930 ret_val = e1000_read_phy_reg(hw, IFE_PHY_EXTENDED_STATUS_CONTROL,
6934 *polarity = ((phy_data & IFE_PESC_POLARITY_REVERSED) >>
6935 IFE_PESC_POLARITY_REVERSED_SHIFT) ?
6936 e1000_rev_polarity_reversed : e1000_rev_polarity_normal;
6938 return E1000_SUCCESS;
6941 /******************************************************************************
6942 * Check if Downshift occured
6944 * hw - Struct containing variables accessed by shared code
6945 * downshift - output parameter : 0 - No Downshift ocured.
6946 * 1 - Downshift ocured.
6948 * returns: - E1000_ERR_XXX
6951 * For phy's older then IGP, this function reads the Downshift bit in the Phy
6952 * Specific Status register. For IGP phy's, it reads the Downgrade bit in the
6953 * Link Health register. In IGP this bit is latched high, so the driver must
6954 * read it immediately after link is established.
6955 *****************************************************************************/
6957 e1000_check_downshift(struct e1000_hw *hw)
6962 DEBUGFUNC("e1000_check_downshift");
6964 if (hw->phy_type == e1000_phy_igp ||
6965 hw->phy_type == e1000_phy_igp_3 ||
6966 hw->phy_type == e1000_phy_igp_2) {
6967 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_LINK_HEALTH,
6972 hw->speed_downgraded = (phy_data & IGP01E1000_PLHR_SS_DOWNGRADE) ? 1 : 0;
6973 } else if ((hw->phy_type == e1000_phy_m88) ||
6974 (hw->phy_type == e1000_phy_gg82563)) {
6975 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS,
6980 hw->speed_downgraded = (phy_data & M88E1000_PSSR_DOWNSHIFT) >>
6981 M88E1000_PSSR_DOWNSHIFT_SHIFT;
6982 } else if (hw->phy_type == e1000_phy_ife) {
6983 /* e1000_phy_ife supports 10/100 speed only */
6984 hw->speed_downgraded = FALSE;
6987 return E1000_SUCCESS;
6990 /*****************************************************************************
6992 * 82541_rev_2 & 82547_rev_2 have the capability to configure the DSP when a
6993 * gigabit link is achieved to improve link quality.
6995 * hw: Struct containing variables accessed by shared code
6997 * returns: - E1000_ERR_PHY if fail to read/write the PHY
6998 * E1000_SUCCESS at any other case.
7000 ****************************************************************************/
7003 e1000_config_dsp_after_link_change(struct e1000_hw *hw,
7007 uint16_t phy_data, phy_saved_data, speed, duplex, i;
7008 uint16_t dsp_reg_array[IGP01E1000_PHY_CHANNEL_NUM] =
7009 {IGP01E1000_PHY_AGC_PARAM_A,
7010 IGP01E1000_PHY_AGC_PARAM_B,
7011 IGP01E1000_PHY_AGC_PARAM_C,
7012 IGP01E1000_PHY_AGC_PARAM_D};
7013 uint16_t min_length, max_length;
7015 DEBUGFUNC("e1000_config_dsp_after_link_change");
7017 if (hw->phy_type != e1000_phy_igp)
7018 return E1000_SUCCESS;
7021 ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex);
7023 DEBUGOUT("Error getting link speed and duplex\n");
7027 if (speed == SPEED_1000) {
7029 ret_val = e1000_get_cable_length(hw, &min_length, &max_length);
7033 if ((hw->dsp_config_state == e1000_dsp_config_enabled) &&
7034 min_length >= e1000_igp_cable_length_50) {
7036 for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) {
7037 ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i],
7042 phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX;
7044 ret_val = e1000_write_phy_reg(hw, dsp_reg_array[i],
7049 hw->dsp_config_state = e1000_dsp_config_activated;
7052 if ((hw->ffe_config_state == e1000_ffe_config_enabled) &&
7053 (min_length < e1000_igp_cable_length_50)) {
7055 uint16_t ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_20;
7056 uint32_t idle_errs = 0;
7058 /* clear previous idle error counts */
7059 ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS,
7064 for (i = 0; i < ffe_idle_err_timeout; i++) {
7066 ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS,
7071 idle_errs += (phy_data & SR_1000T_IDLE_ERROR_CNT);
7072 if (idle_errs > SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT) {
7073 hw->ffe_config_state = e1000_ffe_config_active;
7075 ret_val = e1000_write_phy_reg(hw,
7076 IGP01E1000_PHY_DSP_FFE,
7077 IGP01E1000_PHY_DSP_FFE_CM_CP);
7084 ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_100;
7089 if (hw->dsp_config_state == e1000_dsp_config_activated) {
7090 /* Save off the current value of register 0x2F5B to be restored at
7091 * the end of the routines. */
7092 ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data);
7097 /* Disable the PHY transmitter */
7098 ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003);
7105 ret_val = e1000_write_phy_reg(hw, 0x0000,
7106 IGP01E1000_IEEE_FORCE_GIGA);
7109 for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) {
7110 ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], &phy_data);
7114 phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX;
7115 phy_data |= IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS;
7117 ret_val = e1000_write_phy_reg(hw,dsp_reg_array[i], phy_data);
7122 ret_val = e1000_write_phy_reg(hw, 0x0000,
7123 IGP01E1000_IEEE_RESTART_AUTONEG);
7129 /* Now enable the transmitter */
7130 ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data);
7135 hw->dsp_config_state = e1000_dsp_config_enabled;
7138 if (hw->ffe_config_state == e1000_ffe_config_active) {
7139 /* Save off the current value of register 0x2F5B to be restored at
7140 * the end of the routines. */
7141 ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data);
7146 /* Disable the PHY transmitter */
7147 ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003);
7154 ret_val = e1000_write_phy_reg(hw, 0x0000,
7155 IGP01E1000_IEEE_FORCE_GIGA);
7158 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_DSP_FFE,
7159 IGP01E1000_PHY_DSP_FFE_DEFAULT);
7163 ret_val = e1000_write_phy_reg(hw, 0x0000,
7164 IGP01E1000_IEEE_RESTART_AUTONEG);
7170 /* Now enable the transmitter */
7171 ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data);
7176 hw->ffe_config_state = e1000_ffe_config_enabled;
7179 return E1000_SUCCESS;
7182 /*****************************************************************************
7183 * Set PHY to class A mode
7184 * Assumes the following operations will follow to enable the new class mode.
7185 * 1. Do a PHY soft reset
7186 * 2. Restart auto-negotiation or force link.
7188 * hw - Struct containing variables accessed by shared code
7189 ****************************************************************************/
7191 e1000_set_phy_mode(struct e1000_hw *hw)
7194 uint16_t eeprom_data;
7196 DEBUGFUNC("e1000_set_phy_mode");
7198 if ((hw->mac_type == e1000_82545_rev_3) &&
7199 (hw->media_type == e1000_media_type_copper)) {
7200 ret_val = e1000_read_eeprom(hw, EEPROM_PHY_CLASS_WORD, 1, &eeprom_data);
7205 if ((eeprom_data != EEPROM_RESERVED_WORD) &&
7206 (eeprom_data & EEPROM_PHY_CLASS_A)) {
7207 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x000B);
7210 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x8104);
7214 hw->phy_reset_disable = FALSE;
7218 return E1000_SUCCESS;
7221 /*****************************************************************************
7223 * This function sets the lplu state according to the active flag. When
7224 * activating lplu this function also disables smart speed and vise versa.
7225 * lplu will not be activated unless the device autonegotiation advertisment
7226 * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes.
7227 * hw: Struct containing variables accessed by shared code
7228 * active - true to enable lplu false to disable lplu.
7230 * returns: - E1000_ERR_PHY if fail to read/write the PHY
7231 * E1000_SUCCESS at any other case.
7233 ****************************************************************************/
7236 e1000_set_d3_lplu_state(struct e1000_hw *hw,
7239 uint32_t phy_ctrl = 0;
7242 DEBUGFUNC("e1000_set_d3_lplu_state");
7244 if (hw->phy_type != e1000_phy_igp && hw->phy_type != e1000_phy_igp_2
7245 && hw->phy_type != e1000_phy_igp_3)
7246 return E1000_SUCCESS;
7248 /* During driver activity LPLU should not be used or it will attain link
7249 * from the lowest speeds starting from 10Mbps. The capability is used for
7250 * Dx transitions and states */
7251 if (hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) {
7252 ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, &phy_data);
7255 } else if (hw->mac_type == e1000_ich8lan) {
7256 /* MAC writes into PHY register based on the state transition
7257 * and start auto-negotiation. SW driver can overwrite the settings
7258 * in CSR PHY power control E1000_PHY_CTRL register. */
7259 phy_ctrl = E1000_READ_REG(hw, PHY_CTRL);
7261 ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data);
7267 if (hw->mac_type == e1000_82541_rev_2 ||
7268 hw->mac_type == e1000_82547_rev_2) {
7269 phy_data &= ~IGP01E1000_GMII_FLEX_SPD;
7270 ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data);
7274 if (hw->mac_type == e1000_ich8lan) {
7275 phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU;
7276 E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl);
7278 phy_data &= ~IGP02E1000_PM_D3_LPLU;
7279 ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT,
7286 /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during
7287 * Dx states where the power conservation is most important. During
7288 * driver activity we should enable SmartSpeed, so performance is
7290 if (hw->smart_speed == e1000_smart_speed_on) {
7291 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
7296 phy_data |= IGP01E1000_PSCFR_SMART_SPEED;
7297 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
7301 } else if (hw->smart_speed == e1000_smart_speed_off) {
7302 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
7307 phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED;
7308 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
7314 } else if ((hw->autoneg_advertised == AUTONEG_ADVERTISE_SPEED_DEFAULT) ||
7315 (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_ALL ) ||
7316 (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_100_ALL)) {
7318 if (hw->mac_type == e1000_82541_rev_2 ||
7319 hw->mac_type == e1000_82547_rev_2) {
7320 phy_data |= IGP01E1000_GMII_FLEX_SPD;
7321 ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data);
7325 if (hw->mac_type == e1000_ich8lan) {
7326 phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU;
7327 E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl);
7329 phy_data |= IGP02E1000_PM_D3_LPLU;
7330 ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT,
7337 /* When LPLU is enabled we should disable SmartSpeed */
7338 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data);
7342 phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED;
7343 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data);
7348 return E1000_SUCCESS;
7351 /*****************************************************************************
7353 * This function sets the lplu d0 state according to the active flag. When
7354 * activating lplu this function also disables smart speed and vise versa.
7355 * lplu will not be activated unless the device autonegotiation advertisment
7356 * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes.
7357 * hw: Struct containing variables accessed by shared code
7358 * active - true to enable lplu false to disable lplu.
7360 * returns: - E1000_ERR_PHY if fail to read/write the PHY
7361 * E1000_SUCCESS at any other case.
7363 ****************************************************************************/
7366 e1000_set_d0_lplu_state(struct e1000_hw *hw,
7369 uint32_t phy_ctrl = 0;
7372 DEBUGFUNC("e1000_set_d0_lplu_state");
7374 if (hw->mac_type <= e1000_82547_rev_2)
7375 return E1000_SUCCESS;
7377 if (hw->mac_type == e1000_ich8lan) {
7378 phy_ctrl = E1000_READ_REG(hw, PHY_CTRL);
7380 ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data);
7386 if (hw->mac_type == e1000_ich8lan) {
7387 phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU;
7388 E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl);
7390 phy_data &= ~IGP02E1000_PM_D0_LPLU;
7391 ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data);
7396 /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during
7397 * Dx states where the power conservation is most important. During
7398 * driver activity we should enable SmartSpeed, so performance is
7400 if (hw->smart_speed == e1000_smart_speed_on) {
7401 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
7406 phy_data |= IGP01E1000_PSCFR_SMART_SPEED;
7407 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
7411 } else if (hw->smart_speed == e1000_smart_speed_off) {
7412 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
7417 phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED;
7418 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
7427 if (hw->mac_type == e1000_ich8lan) {
7428 phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU;
7429 E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl);
7431 phy_data |= IGP02E1000_PM_D0_LPLU;
7432 ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data);
7437 /* When LPLU is enabled we should disable SmartSpeed */
7438 ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data);
7442 phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED;
7443 ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data);
7448 return E1000_SUCCESS;
7451 /******************************************************************************
7452 * Change VCO speed register to improve Bit Error Rate performance of SERDES.
7454 * hw - Struct containing variables accessed by shared code
7455 *****************************************************************************/
7457 e1000_set_vco_speed(struct e1000_hw *hw)
7460 uint16_t default_page = 0;
7463 DEBUGFUNC("e1000_set_vco_speed");
7465 switch (hw->mac_type) {
7466 case e1000_82545_rev_3:
7467 case e1000_82546_rev_3:
7470 return E1000_SUCCESS;
7473 /* Set PHY register 30, page 5, bit 8 to 0 */
7475 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, &default_page);
7479 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005);
7483 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data);
7487 phy_data &= ~M88E1000_PHY_VCO_REG_BIT8;
7488 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data);
7492 /* Set PHY register 30, page 4, bit 11 to 1 */
7494 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004);
7498 ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data);
7502 phy_data |= M88E1000_PHY_VCO_REG_BIT11;
7503 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data);
7507 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, default_page);
7511 return E1000_SUCCESS;
7515 /*****************************************************************************
7516 * This function reads the cookie from ARC ram.
7518 * returns: - E1000_SUCCESS .
7519 ****************************************************************************/
7521 e1000_host_if_read_cookie(struct e1000_hw * hw, uint8_t *buffer)
7524 uint32_t offset = E1000_MNG_DHCP_COOKIE_OFFSET;
7525 uint8_t length = E1000_MNG_DHCP_COOKIE_LENGTH;
7527 length = (length >> 2);
7528 offset = (offset >> 2);
7530 for (i = 0; i < length; i++) {
7531 *((uint32_t *) buffer + i) =
7532 E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset + i);
7534 return E1000_SUCCESS;
7538 /*****************************************************************************
7539 * This function checks whether the HOST IF is enabled for command operaton
7540 * and also checks whether the previous command is completed.
7541 * It busy waits in case of previous command is not completed.
7543 * returns: - E1000_ERR_HOST_INTERFACE_COMMAND in case if is not ready or
7545 * - E1000_SUCCESS for success.
7546 ****************************************************************************/
7548 e1000_mng_enable_host_if(struct e1000_hw * hw)
7553 /* Check that the host interface is enabled. */
7554 hicr = E1000_READ_REG(hw, HICR);
7555 if ((hicr & E1000_HICR_EN) == 0) {
7556 DEBUGOUT("E1000_HOST_EN bit disabled.\n");
7557 return -E1000_ERR_HOST_INTERFACE_COMMAND;
7559 /* check the previous command is completed */
7560 for (i = 0; i < E1000_MNG_DHCP_COMMAND_TIMEOUT; i++) {
7561 hicr = E1000_READ_REG(hw, HICR);
7562 if (!(hicr & E1000_HICR_C))
7567 if (i == E1000_MNG_DHCP_COMMAND_TIMEOUT) {
7568 DEBUGOUT("Previous command timeout failed .\n");
7569 return -E1000_ERR_HOST_INTERFACE_COMMAND;
7571 return E1000_SUCCESS;
7574 /*****************************************************************************
7575 * This function writes the buffer content at the offset given on the host if.
7576 * It also does alignment considerations to do the writes in most efficient way.
7577 * Also fills up the sum of the buffer in *buffer parameter.
7579 * returns - E1000_SUCCESS for success.
7580 ****************************************************************************/
7582 e1000_mng_host_if_write(struct e1000_hw * hw, uint8_t *buffer,
7583 uint16_t length, uint16_t offset, uint8_t *sum)
7586 uint8_t *bufptr = buffer;
7588 uint16_t remaining, i, j, prev_bytes;
7590 /* sum = only sum of the data and it is not checksum */
7592 if (length == 0 || offset + length > E1000_HI_MAX_MNG_DATA_LENGTH) {
7593 return -E1000_ERR_PARAM;
7596 tmp = (uint8_t *)&data;
7597 prev_bytes = offset & 0x3;
7602 data = E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset);
7603 for (j = prev_bytes; j < sizeof(uint32_t); j++) {
7604 *(tmp + j) = *bufptr++;
7607 E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset, data);
7608 length -= j - prev_bytes;
7612 remaining = length & 0x3;
7613 length -= remaining;
7615 /* Calculate length in DWORDs */
7618 /* The device driver writes the relevant command block into the
7620 for (i = 0; i < length; i++) {
7621 for (j = 0; j < sizeof(uint32_t); j++) {
7622 *(tmp + j) = *bufptr++;
7626 E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data);
7629 for (j = 0; j < sizeof(uint32_t); j++) {
7631 *(tmp + j) = *bufptr++;
7637 E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data);
7640 return E1000_SUCCESS;
7644 /*****************************************************************************
7645 * This function writes the command header after does the checksum calculation.
7647 * returns - E1000_SUCCESS for success.
7648 ****************************************************************************/
7650 e1000_mng_write_cmd_header(struct e1000_hw * hw,
7651 struct e1000_host_mng_command_header * hdr)
7657 /* Write the whole command header structure which includes sum of
7660 uint16_t length = sizeof(struct e1000_host_mng_command_header);
7662 sum = hdr->checksum;
7665 buffer = (uint8_t *) hdr;
7670 hdr->checksum = 0 - sum;
7673 /* The device driver writes the relevant command block into the ram area. */
7674 for (i = 0; i < length; i++) {
7675 E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, i, *((uint32_t *) hdr + i));
7676 E1000_WRITE_FLUSH(hw);
7679 return E1000_SUCCESS;
7683 /*****************************************************************************
7684 * This function indicates to ARC that a new command is pending which completes
7685 * one write operation by the driver.
7687 * returns - E1000_SUCCESS for success.
7688 ****************************************************************************/
7690 e1000_mng_write_commit(struct e1000_hw * hw)
7694 hicr = E1000_READ_REG(hw, HICR);
7695 /* Setting this bit tells the ARC that a new command is pending. */
7696 E1000_WRITE_REG(hw, HICR, hicr | E1000_HICR_C);
7698 return E1000_SUCCESS;
7702 /*****************************************************************************
7703 * This function checks the mode of the firmware.
7705 * returns - TRUE when the mode is IAMT or FALSE.
7706 ****************************************************************************/
7708 e1000_check_mng_mode(struct e1000_hw *hw)
7712 fwsm = E1000_READ_REG(hw, FWSM);
7714 if (hw->mac_type == e1000_ich8lan) {
7715 if ((fwsm & E1000_FWSM_MODE_MASK) ==
7716 (E1000_MNG_ICH_IAMT_MODE << E1000_FWSM_MODE_SHIFT))
7718 } else if ((fwsm & E1000_FWSM_MODE_MASK) ==
7719 (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT))
7726 /*****************************************************************************
7727 * This function writes the dhcp info .
7728 ****************************************************************************/
7730 e1000_mng_write_dhcp_info(struct e1000_hw * hw, uint8_t *buffer,
7734 struct e1000_host_mng_command_header hdr;
7736 hdr.command_id = E1000_MNG_DHCP_TX_PAYLOAD_CMD;
7737 hdr.command_length = length;
7742 ret_val = e1000_mng_enable_host_if(hw);
7743 if (ret_val == E1000_SUCCESS) {
7744 ret_val = e1000_mng_host_if_write(hw, buffer, length, sizeof(hdr),
7746 if (ret_val == E1000_SUCCESS) {
7747 ret_val = e1000_mng_write_cmd_header(hw, &hdr);
7748 if (ret_val == E1000_SUCCESS)
7749 ret_val = e1000_mng_write_commit(hw);
7756 /*****************************************************************************
7757 * This function calculates the checksum.
7759 * returns - checksum of buffer contents.
7760 ****************************************************************************/
7762 e1000_calculate_mng_checksum(char *buffer, uint32_t length)
7770 for (i=0; i < length; i++)
7773 return (uint8_t) (0 - sum);
7776 /*****************************************************************************
7777 * This function checks whether tx pkt filtering needs to be enabled or not.
7779 * returns - TRUE for packet filtering or FALSE.
7780 ****************************************************************************/
7782 e1000_enable_tx_pkt_filtering(struct e1000_hw *hw)
7784 /* called in init as well as watchdog timer functions */
7786 int32_t ret_val, checksum;
7787 boolean_t tx_filter = FALSE;
7788 struct e1000_host_mng_dhcp_cookie *hdr = &(hw->mng_cookie);
7789 uint8_t *buffer = (uint8_t *) &(hw->mng_cookie);
7791 if (e1000_check_mng_mode(hw)) {
7792 ret_val = e1000_mng_enable_host_if(hw);
7793 if (ret_val == E1000_SUCCESS) {
7794 ret_val = e1000_host_if_read_cookie(hw, buffer);
7795 if (ret_val == E1000_SUCCESS) {
7796 checksum = hdr->checksum;
7798 if ((hdr->signature == E1000_IAMT_SIGNATURE) &&
7799 checksum == e1000_calculate_mng_checksum((char *)buffer,
7800 E1000_MNG_DHCP_COOKIE_LENGTH)) {
7802 E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT)
7811 hw->tx_pkt_filtering = tx_filter;
7815 /******************************************************************************
7816 * Verifies the hardware needs to allow ARPs to be processed by the host
7818 * hw - Struct containing variables accessed by shared code
7820 * returns: - TRUE/FALSE
7822 *****************************************************************************/
7824 e1000_enable_mng_pass_thru(struct e1000_hw *hw)
7827 uint32_t fwsm, factps;
7829 if (hw->asf_firmware_present) {
7830 manc = E1000_READ_REG(hw, MANC);
7832 if (!(manc & E1000_MANC_RCV_TCO_EN) ||
7833 !(manc & E1000_MANC_EN_MAC_ADDR_FILTER))
7835 if (e1000_arc_subsystem_valid(hw) == TRUE) {
7836 fwsm = E1000_READ_REG(hw, FWSM);
7837 factps = E1000_READ_REG(hw, FACTPS);
7839 if ((((fwsm & E1000_FWSM_MODE_MASK) >> E1000_FWSM_MODE_SHIFT) ==
7840 e1000_mng_mode_pt) && !(factps & E1000_FACTPS_MNGCG))
7843 if ((manc & E1000_MANC_SMBUS_EN) && !(manc & E1000_MANC_ASF_EN))
7850 e1000_polarity_reversal_workaround(struct e1000_hw *hw)
7853 uint16_t mii_status_reg;
7856 /* Polarity reversal workaround for forced 10F/10H links. */
7858 /* Disable the transmitter on the PHY */
7860 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019);
7863 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFFF);
7867 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000);
7871 /* This loop will early-out if the NO link condition has been met. */
7872 for (i = PHY_FORCE_TIME; i > 0; i--) {
7873 /* Read the MII Status Register and wait for Link Status bit
7877 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
7881 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
7885 if ((mii_status_reg & ~MII_SR_LINK_STATUS) == 0) break;
7889 /* Recommended delay time after link has been lost */
7892 /* Now we will re-enable th transmitter on the PHY */
7894 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019);
7898 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFF0);
7902 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFF00);
7906 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x0000);
7910 ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000);
7914 /* This loop will early-out if the link condition has been met. */
7915 for (i = PHY_FORCE_TIME; i > 0; i--) {
7916 /* Read the MII Status Register and wait for Link Status bit
7920 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
7924 ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg);
7928 if (mii_status_reg & MII_SR_LINK_STATUS) break;
7931 return E1000_SUCCESS;
7934 /***************************************************************************
7936 * Disables PCI-Express master access.
7938 * hw: Struct containing variables accessed by shared code
7942 ***************************************************************************/
7944 e1000_set_pci_express_master_disable(struct e1000_hw *hw)
7948 DEBUGFUNC("e1000_set_pci_express_master_disable");
7950 if (hw->bus_type != e1000_bus_type_pci_express)
7953 ctrl = E1000_READ_REG(hw, CTRL);
7954 ctrl |= E1000_CTRL_GIO_MASTER_DISABLE;
7955 E1000_WRITE_REG(hw, CTRL, ctrl);
7958 /*******************************************************************************
7960 * Disables PCI-Express master access and verifies there are no pending requests
7962 * hw: Struct containing variables accessed by shared code
7964 * returns: - E1000_ERR_MASTER_REQUESTS_PENDING if master disable bit hasn't
7965 * caused the master requests to be disabled.
7966 * E1000_SUCCESS master requests disabled.
7968 ******************************************************************************/
7970 e1000_disable_pciex_master(struct e1000_hw *hw)
7972 int32_t timeout = MASTER_DISABLE_TIMEOUT; /* 80ms */
7974 DEBUGFUNC("e1000_disable_pciex_master");
7976 if (hw->bus_type != e1000_bus_type_pci_express)
7977 return E1000_SUCCESS;
7979 e1000_set_pci_express_master_disable(hw);
7982 if (!(E1000_READ_REG(hw, STATUS) & E1000_STATUS_GIO_MASTER_ENABLE))
7990 DEBUGOUT("Master requests are pending.\n");
7991 return -E1000_ERR_MASTER_REQUESTS_PENDING;
7994 return E1000_SUCCESS;
7997 /*******************************************************************************
7999 * Check for EEPROM Auto Read bit done.
8001 * hw: Struct containing variables accessed by shared code
8003 * returns: - E1000_ERR_RESET if fail to reset MAC
8004 * E1000_SUCCESS at any other case.
8006 ******************************************************************************/
8008 e1000_get_auto_rd_done(struct e1000_hw *hw)
8010 int32_t timeout = AUTO_READ_DONE_TIMEOUT;
8012 DEBUGFUNC("e1000_get_auto_rd_done");
8014 switch (hw->mac_type) {
8021 case e1000_80003es2lan:
8024 if (E1000_READ_REG(hw, EECD) & E1000_EECD_AUTO_RD)
8031 DEBUGOUT("Auto read by HW from EEPROM has not completed.\n");
8032 return -E1000_ERR_RESET;
8037 /* PHY configuration from NVM just starts after EECD_AUTO_RD sets to high.
8038 * Need to wait for PHY configuration completion before accessing NVM
8040 if (hw->mac_type == e1000_82573)
8043 return E1000_SUCCESS;
8046 /***************************************************************************
8047 * Checks if the PHY configuration is done
8049 * hw: Struct containing variables accessed by shared code
8051 * returns: - E1000_ERR_RESET if fail to reset MAC
8052 * E1000_SUCCESS at any other case.
8054 ***************************************************************************/
8056 e1000_get_phy_cfg_done(struct e1000_hw *hw)
8058 int32_t timeout = PHY_CFG_TIMEOUT;
8059 uint32_t cfg_mask = E1000_EEPROM_CFG_DONE;
8061 DEBUGFUNC("e1000_get_phy_cfg_done");
8063 switch (hw->mac_type) {
8067 case e1000_80003es2lan:
8068 /* Separate *_CFG_DONE_* bit for each port */
8069 if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)
8070 cfg_mask = E1000_EEPROM_CFG_DONE_PORT_1;
8075 if (E1000_READ_REG(hw, EEMNGCTL) & cfg_mask)
8082 DEBUGOUT("MNG configuration cycle has not completed.\n");
8083 return -E1000_ERR_RESET;
8088 return E1000_SUCCESS;
8091 /***************************************************************************
8093 * Using the combination of SMBI and SWESMBI semaphore bits when resetting
8094 * adapter or Eeprom access.
8096 * hw: Struct containing variables accessed by shared code
8098 * returns: - E1000_ERR_EEPROM if fail to access EEPROM.
8099 * E1000_SUCCESS at any other case.
8101 ***************************************************************************/
8103 e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw)
8108 DEBUGFUNC("e1000_get_hw_eeprom_semaphore");
8110 if (!hw->eeprom_semaphore_present)
8111 return E1000_SUCCESS;
8113 if (hw->mac_type == e1000_80003es2lan) {
8114 /* Get the SW semaphore. */
8115 if (e1000_get_software_semaphore(hw) != E1000_SUCCESS)
8116 return -E1000_ERR_EEPROM;
8119 /* Get the FW semaphore. */
8120 timeout = hw->eeprom.word_size + 1;
8122 swsm = E1000_READ_REG(hw, SWSM);
8123 swsm |= E1000_SWSM_SWESMBI;
8124 E1000_WRITE_REG(hw, SWSM, swsm);
8125 /* if we managed to set the bit we got the semaphore. */
8126 swsm = E1000_READ_REG(hw, SWSM);
8127 if (swsm & E1000_SWSM_SWESMBI)
8135 /* Release semaphores */
8136 e1000_put_hw_eeprom_semaphore(hw);
8137 DEBUGOUT("Driver can't access the Eeprom - SWESMBI bit is set.\n");
8138 return -E1000_ERR_EEPROM;
8141 return E1000_SUCCESS;
8144 /***************************************************************************
8145 * This function clears HW semaphore bits.
8147 * hw: Struct containing variables accessed by shared code
8151 ***************************************************************************/
8153 e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw)
8157 DEBUGFUNC("e1000_put_hw_eeprom_semaphore");
8159 if (!hw->eeprom_semaphore_present)
8162 swsm = E1000_READ_REG(hw, SWSM);
8163 if (hw->mac_type == e1000_80003es2lan) {
8164 /* Release both semaphores. */
8165 swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI);
8167 swsm &= ~(E1000_SWSM_SWESMBI);
8168 E1000_WRITE_REG(hw, SWSM, swsm);
8171 /***************************************************************************
8173 * Obtaining software semaphore bit (SMBI) before resetting PHY.
8175 * hw: Struct containing variables accessed by shared code
8177 * returns: - E1000_ERR_RESET if fail to obtain semaphore.
8178 * E1000_SUCCESS at any other case.
8180 ***************************************************************************/
8182 e1000_get_software_semaphore(struct e1000_hw *hw)
8184 int32_t timeout = hw->eeprom.word_size + 1;
8187 DEBUGFUNC("e1000_get_software_semaphore");
8189 if (hw->mac_type != e1000_80003es2lan) {
8190 return E1000_SUCCESS;
8194 swsm = E1000_READ_REG(hw, SWSM);
8195 /* If SMBI bit cleared, it is now set and we hold the semaphore */
8196 if (!(swsm & E1000_SWSM_SMBI))
8203 DEBUGOUT("Driver can't access device - SMBI bit is set.\n");
8204 return -E1000_ERR_RESET;
8207 return E1000_SUCCESS;
8210 /***************************************************************************
8212 * Release semaphore bit (SMBI).
8214 * hw: Struct containing variables accessed by shared code
8216 ***************************************************************************/
8218 e1000_release_software_semaphore(struct e1000_hw *hw)
8222 DEBUGFUNC("e1000_release_software_semaphore");
8224 if (hw->mac_type != e1000_80003es2lan) {
8228 swsm = E1000_READ_REG(hw, SWSM);
8229 /* Release the SW semaphores.*/
8230 swsm &= ~E1000_SWSM_SMBI;
8231 E1000_WRITE_REG(hw, SWSM, swsm);
8234 /******************************************************************************
8235 * Checks if PHY reset is blocked due to SOL/IDER session, for example.
8236 * Returning E1000_BLK_PHY_RESET isn't necessarily an error. But it's up to
8237 * the caller to figure out how to deal with it.
8239 * hw - Struct containing variables accessed by shared code
8241 * returns: - E1000_BLK_PHY_RESET
8244 *****************************************************************************/
8246 e1000_check_phy_reset_block(struct e1000_hw *hw)
8251 if (hw->mac_type == e1000_ich8lan) {
8252 fwsm = E1000_READ_REG(hw, FWSM);
8253 return (fwsm & E1000_FWSM_RSPCIPHY) ? E1000_SUCCESS
8254 : E1000_BLK_PHY_RESET;
8257 if (hw->mac_type > e1000_82547_rev_2)
8258 manc = E1000_READ_REG(hw, MANC);
8259 return (manc & E1000_MANC_BLK_PHY_RST_ON_IDE) ?
8260 E1000_BLK_PHY_RESET : E1000_SUCCESS;
8264 e1000_arc_subsystem_valid(struct e1000_hw *hw)
8268 /* On 8257x silicon, registers in the range of 0x8800 - 0x8FFC
8269 * may not be provided a DMA clock when no manageability features are
8270 * enabled. We do not want to perform any reads/writes to these registers
8271 * if this is the case. We read FWSM to determine the manageability mode.
8273 switch (hw->mac_type) {
8277 case e1000_80003es2lan:
8278 fwsm = E1000_READ_REG(hw, FWSM);
8279 if ((fwsm & E1000_FWSM_MODE_MASK) != 0)
8291 /******************************************************************************
8292 * Configure PCI-Ex no-snoop
8294 * hw - Struct containing variables accessed by shared code.
8295 * no_snoop - Bitmap of no-snoop events.
8297 * returns: E1000_SUCCESS
8299 *****************************************************************************/
8301 e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, uint32_t no_snoop)
8303 uint32_t gcr_reg = 0;
8305 DEBUGFUNC("e1000_set_pci_ex_no_snoop");
8307 if (hw->bus_type == e1000_bus_type_unknown)
8308 e1000_get_bus_info(hw);
8310 if (hw->bus_type != e1000_bus_type_pci_express)
8311 return E1000_SUCCESS;
8314 gcr_reg = E1000_READ_REG(hw, GCR);
8315 gcr_reg &= ~(PCI_EX_NO_SNOOP_ALL);
8316 gcr_reg |= no_snoop;
8317 E1000_WRITE_REG(hw, GCR, gcr_reg);
8319 if (hw->mac_type == e1000_ich8lan) {
8322 E1000_WRITE_REG(hw, GCR, PCI_EX_82566_SNOOP_ALL);
8324 ctrl_ext = E1000_READ_REG(hw, CTRL_EXT);
8325 ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
8326 E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext);
8329 return E1000_SUCCESS;
8332 /***************************************************************************
8334 * Get software semaphore FLAG bit (SWFLAG).
8335 * SWFLAG is used to synchronize the access to all shared resource between
8338 * hw: Struct containing variables accessed by shared code
8340 ***************************************************************************/
8342 e1000_get_software_flag(struct e1000_hw *hw)
8344 int32_t timeout = PHY_CFG_TIMEOUT;
8345 uint32_t extcnf_ctrl;
8347 DEBUGFUNC("e1000_get_software_flag");
8349 if (hw->mac_type == e1000_ich8lan) {
8351 extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL);
8352 extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG;
8353 E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl);
8355 extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL);
8356 if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG)
8363 DEBUGOUT("FW or HW locks the resource too long.\n");
8364 return -E1000_ERR_CONFIG;
8368 return E1000_SUCCESS;
8371 /***************************************************************************
8373 * Release software semaphore FLAG bit (SWFLAG).
8374 * SWFLAG is used to synchronize the access to all shared resource between
8377 * hw: Struct containing variables accessed by shared code
8379 ***************************************************************************/
8381 e1000_release_software_flag(struct e1000_hw *hw)
8383 uint32_t extcnf_ctrl;
8385 DEBUGFUNC("e1000_release_software_flag");
8387 if (hw->mac_type == e1000_ich8lan) {
8388 extcnf_ctrl= E1000_READ_REG(hw, EXTCNF_CTRL);
8389 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
8390 E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl);
8396 /******************************************************************************
8397 * Reads a 16 bit word or words from the EEPROM using the ICH8's flash access
8400 * hw - Struct containing variables accessed by shared code
8401 * offset - offset of word in the EEPROM to read
8402 * data - word read from the EEPROM
8403 * words - number of words to read
8404 *****************************************************************************/
8406 e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words,
8409 int32_t error = E1000_SUCCESS;
8410 uint32_t flash_bank = 0;
8411 uint32_t act_offset = 0;
8412 uint32_t bank_offset = 0;
8416 /* We need to know which is the valid flash bank. In the event
8417 * that we didn't allocate eeprom_shadow_ram, we may not be
8418 * managing flash_bank. So it cannot be trusted and needs
8419 * to be updated with each read.
8421 /* Value of bit 22 corresponds to the flash bank we're on. */
8422 flash_bank = (E1000_READ_REG(hw, EECD) & E1000_EECD_SEC1VAL) ? 1 : 0;
8424 /* Adjust offset appropriately if we're on bank 1 - adjust for word size */
8425 bank_offset = flash_bank * (hw->flash_bank_size * 2);
8427 error = e1000_get_software_flag(hw);
8428 if (error != E1000_SUCCESS)
8431 for (i = 0; i < words; i++) {
8432 if (hw->eeprom_shadow_ram != NULL &&
8433 hw->eeprom_shadow_ram[offset+i].modified == TRUE) {
8434 data[i] = hw->eeprom_shadow_ram[offset+i].eeprom_word;
8436 /* The NVM part needs a byte offset, hence * 2 */
8437 act_offset = bank_offset + ((offset + i) * 2);
8438 error = e1000_read_ich8_word(hw, act_offset, &word);
8439 if (error != E1000_SUCCESS)
8445 e1000_release_software_flag(hw);
8450 /******************************************************************************
8451 * Writes a 16 bit word or words to the EEPROM using the ICH8's flash access
8452 * register. Actually, writes are written to the shadow ram cache in the hw
8453 * structure hw->e1000_shadow_ram. e1000_commit_shadow_ram flushes this to
8454 * the NVM, which occurs when the NVM checksum is updated.
8456 * hw - Struct containing variables accessed by shared code
8457 * offset - offset of word in the EEPROM to write
8458 * words - number of words to write
8459 * data - words to write to the EEPROM
8460 *****************************************************************************/
8462 e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words,
8466 int32_t error = E1000_SUCCESS;
8468 error = e1000_get_software_flag(hw);
8469 if (error != E1000_SUCCESS)
8472 /* A driver can write to the NVM only if it has eeprom_shadow_ram
8473 * allocated. Subsequent reads to the modified words are read from
8474 * this cached structure as well. Writes will only go into this
8475 * cached structure unless it's followed by a call to
8476 * e1000_update_eeprom_checksum() where it will commit the changes
8477 * and clear the "modified" field.
8479 if (hw->eeprom_shadow_ram != NULL) {
8480 for (i = 0; i < words; i++) {
8481 if ((offset + i) < E1000_SHADOW_RAM_WORDS) {
8482 hw->eeprom_shadow_ram[offset+i].modified = TRUE;
8483 hw->eeprom_shadow_ram[offset+i].eeprom_word = data[i];
8485 error = -E1000_ERR_EEPROM;
8490 /* Drivers have the option to not allocate eeprom_shadow_ram as long
8491 * as they don't perform any NVM writes. An attempt in doing so
8492 * will result in this error.
8494 error = -E1000_ERR_EEPROM;
8497 e1000_release_software_flag(hw);
8502 /******************************************************************************
8503 * This function does initial flash setup so that a new read/write/erase cycle
8506 * hw - The pointer to the hw structure
8507 ****************************************************************************/
8509 e1000_ich8_cycle_init(struct e1000_hw *hw)
8511 union ich8_hws_flash_status hsfsts;
8512 int32_t error = E1000_ERR_EEPROM;
8515 DEBUGFUNC("e1000_ich8_cycle_init");
8517 hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
8519 /* May be check the Flash Des Valid bit in Hw status */
8520 if (hsfsts.hsf_status.fldesvalid == 0) {
8521 DEBUGOUT("Flash descriptor invalid. SW Sequencing must be used.");
8525 /* Clear FCERR in Hw status by writing 1 */
8526 /* Clear DAEL in Hw status by writing a 1 */
8527 hsfsts.hsf_status.flcerr = 1;
8528 hsfsts.hsf_status.dael = 1;
8530 E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval);
8532 /* Either we should have a hardware SPI cycle in progress bit to check
8533 * against, in order to start a new cycle or FDONE bit should be changed
8534 * in the hardware so that it is 1 after harware reset, which can then be
8535 * used as an indication whether a cycle is in progress or has been
8536 * completed .. we should also have some software semaphore mechanism to
8537 * guard FDONE or the cycle in progress bit so that two threads access to
8538 * those bits can be sequentiallized or a way so that 2 threads dont
8539 * start the cycle at the same time */
8541 if (hsfsts.hsf_status.flcinprog == 0) {
8542 /* There is no cycle running at present, so we can start a cycle */
8543 /* Begin by setting Flash Cycle Done. */
8544 hsfsts.hsf_status.flcdone = 1;
8545 E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval);
8546 error = E1000_SUCCESS;
8548 /* otherwise poll for sometime so the current cycle has a chance
8549 * to end before giving up. */
8550 for (i = 0; i < ICH_FLASH_COMMAND_TIMEOUT; i++) {
8551 hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
8552 if (hsfsts.hsf_status.flcinprog == 0) {
8553 error = E1000_SUCCESS;
8558 if (error == E1000_SUCCESS) {
8559 /* Successful in waiting for previous cycle to timeout,
8560 * now set the Flash Cycle Done. */
8561 hsfsts.hsf_status.flcdone = 1;
8562 E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval);
8564 DEBUGOUT("Flash controller busy, cannot get access");
8570 /******************************************************************************
8571 * This function starts a flash cycle and waits for its completion
8573 * hw - The pointer to the hw structure
8574 ****************************************************************************/
8576 e1000_ich8_flash_cycle(struct e1000_hw *hw, uint32_t timeout)
8578 union ich8_hws_flash_ctrl hsflctl;
8579 union ich8_hws_flash_status hsfsts;
8580 int32_t error = E1000_ERR_EEPROM;
8583 /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */
8584 hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL);
8585 hsflctl.hsf_ctrl.flcgo = 1;
8586 E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval);
8588 /* wait till FDONE bit is set to 1 */
8590 hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
8591 if (hsfsts.hsf_status.flcdone == 1)
8595 } while (i < timeout);
8596 if (hsfsts.hsf_status.flcdone == 1 && hsfsts.hsf_status.flcerr == 0) {
8597 error = E1000_SUCCESS;
8602 /******************************************************************************
8603 * Reads a byte or word from the NVM using the ICH8 flash access registers.
8605 * hw - The pointer to the hw structure
8606 * index - The index of the byte or word to read.
8607 * size - Size of data to read, 1=byte 2=word
8608 * data - Pointer to the word to store the value read.
8609 *****************************************************************************/
8611 e1000_read_ich8_data(struct e1000_hw *hw, uint32_t index,
8612 uint32_t size, uint16_t* data)
8614 union ich8_hws_flash_status hsfsts;
8615 union ich8_hws_flash_ctrl hsflctl;
8616 uint32_t flash_linear_address;
8617 uint32_t flash_data = 0;
8618 int32_t error = -E1000_ERR_EEPROM;
8621 DEBUGFUNC("e1000_read_ich8_data");
8623 if (size < 1 || size > 2 || data == 0x0 ||
8624 index > ICH_FLASH_LINEAR_ADDR_MASK)
8627 flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) +
8628 hw->flash_base_addr;
8633 error = e1000_ich8_cycle_init(hw);
8634 if (error != E1000_SUCCESS)
8637 hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL);
8638 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
8639 hsflctl.hsf_ctrl.fldbcount = size - 1;
8640 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ;
8641 E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval);
8643 /* Write the last 24 bits of index into Flash Linear address field in
8645 /* TODO: TBD maybe check the index against the size of flash */
8647 E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address);
8649 error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT);
8651 /* Check if FCERR is set to 1, if set to 1, clear it and try the whole
8652 * sequence a few more times, else read in (shift in) the Flash Data0,
8653 * the order is least significant byte first msb to lsb */
8654 if (error == E1000_SUCCESS) {
8655 flash_data = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0);
8657 *data = (uint8_t)(flash_data & 0x000000FF);
8658 } else if (size == 2) {
8659 *data = (uint16_t)(flash_data & 0x0000FFFF);
8663 /* If we've gotten here, then things are probably completely hosed,
8664 * but if the error condition is detected, it won't hurt to give
8665 * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times.
8667 hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
8668 if (hsfsts.hsf_status.flcerr == 1) {
8669 /* Repeat for some time before giving up. */
8671 } else if (hsfsts.hsf_status.flcdone == 0) {
8672 DEBUGOUT("Timeout error - flash cycle did not complete.");
8676 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
8681 /******************************************************************************
8682 * Writes One /two bytes to the NVM using the ICH8 flash access registers.
8684 * hw - The pointer to the hw structure
8685 * index - The index of the byte/word to read.
8686 * size - Size of data to read, 1=byte 2=word
8687 * data - The byte(s) to write to the NVM.
8688 *****************************************************************************/
8690 e1000_write_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size,
8693 union ich8_hws_flash_status hsfsts;
8694 union ich8_hws_flash_ctrl hsflctl;
8695 uint32_t flash_linear_address;
8696 uint32_t flash_data = 0;
8697 int32_t error = -E1000_ERR_EEPROM;
8700 DEBUGFUNC("e1000_write_ich8_data");
8702 if (size < 1 || size > 2 || data > size * 0xff ||
8703 index > ICH_FLASH_LINEAR_ADDR_MASK)
8706 flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) +
8707 hw->flash_base_addr;
8712 error = e1000_ich8_cycle_init(hw);
8713 if (error != E1000_SUCCESS)
8716 hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL);
8717 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
8718 hsflctl.hsf_ctrl.fldbcount = size -1;
8719 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE;
8720 E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval);
8722 /* Write the last 24 bits of index into Flash Linear address field in
8724 E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address);
8727 flash_data = (uint32_t)data & 0x00FF;
8729 flash_data = (uint32_t)data;
8731 E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0, flash_data);
8733 /* check if FCERR is set to 1 , if set to 1, clear it and try the whole
8734 * sequence a few more times else done */
8735 error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT);
8736 if (error == E1000_SUCCESS) {
8739 /* If we're here, then things are most likely completely hosed,
8740 * but if the error condition is detected, it won't hurt to give
8741 * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times.
8743 hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
8744 if (hsfsts.hsf_status.flcerr == 1) {
8745 /* Repeat for some time before giving up. */
8747 } else if (hsfsts.hsf_status.flcdone == 0) {
8748 DEBUGOUT("Timeout error - flash cycle did not complete.");
8752 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
8757 /******************************************************************************
8758 * Reads a single byte from the NVM using the ICH8 flash access registers.
8760 * hw - pointer to e1000_hw structure
8761 * index - The index of the byte to read.
8762 * data - Pointer to a byte to store the value read.
8763 *****************************************************************************/
8765 e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t* data)
8767 int32_t status = E1000_SUCCESS;
8770 status = e1000_read_ich8_data(hw, index, 1, &word);
8771 if (status == E1000_SUCCESS) {
8772 *data = (uint8_t)word;
8778 /******************************************************************************
8779 * Writes a single byte to the NVM using the ICH8 flash access registers.
8780 * Performs verification by reading back the value and then going through
8781 * a retry algorithm before giving up.
8783 * hw - pointer to e1000_hw structure
8784 * index - The index of the byte to write.
8785 * byte - The byte to write to the NVM.
8786 *****************************************************************************/
8788 e1000_verify_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t byte)
8790 int32_t error = E1000_SUCCESS;
8791 int32_t program_retries = 0;
8793 DEBUGOUT2("Byte := %2.2X Offset := %d\n", byte, index);
8795 error = e1000_write_ich8_byte(hw, index, byte);
8797 if (error != E1000_SUCCESS) {
8798 for (program_retries = 0; program_retries < 100; program_retries++) {
8799 DEBUGOUT2("Retrying \t Byte := %2.2X Offset := %d\n", byte, index);
8800 error = e1000_write_ich8_byte(hw, index, byte);
8802 if (error == E1000_SUCCESS)
8807 if (program_retries == 100)
8808 error = E1000_ERR_EEPROM;
8813 /******************************************************************************
8814 * Writes a single byte to the NVM using the ICH8 flash access registers.
8816 * hw - pointer to e1000_hw structure
8817 * index - The index of the byte to read.
8818 * data - The byte to write to the NVM.
8819 *****************************************************************************/
8821 e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t data)
8823 int32_t status = E1000_SUCCESS;
8824 uint16_t word = (uint16_t)data;
8826 status = e1000_write_ich8_data(hw, index, 1, word);
8831 /******************************************************************************
8832 * Reads a word from the NVM using the ICH8 flash access registers.
8834 * hw - pointer to e1000_hw structure
8835 * index - The starting byte index of the word to read.
8836 * data - Pointer to a word to store the value read.
8837 *****************************************************************************/
8839 e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t *data)
8841 int32_t status = E1000_SUCCESS;
8842 status = e1000_read_ich8_data(hw, index, 2, data);
8846 /******************************************************************************
8847 * Erases the bank specified. Each bank may be a 4, 8 or 64k block. Banks are 0
8850 * hw - pointer to e1000_hw structure
8851 * bank - 0 for first bank, 1 for second bank
8853 * Note that this function may actually erase as much as 8 or 64 KBytes. The
8854 * amount of NVM used in each bank is a *minimum* of 4 KBytes, but in fact the
8855 * bank size may be 4, 8 or 64 KBytes
8856 *****************************************************************************/
8858 e1000_erase_ich8_4k_segment(struct e1000_hw *hw, uint32_t bank)
8860 union ich8_hws_flash_status hsfsts;
8861 union ich8_hws_flash_ctrl hsflctl;
8862 uint32_t flash_linear_address;
8864 int32_t error = E1000_ERR_EEPROM;
8866 int32_t sub_sector_size = 0;
8869 int32_t error_flag = 0;
8871 hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
8873 /* Determine HW Sector size: Read BERASE bits of Hw flash Status register */
8874 /* 00: The Hw sector is 256 bytes, hence we need to erase 16
8875 * consecutive sectors. The start index for the nth Hw sector can be
8876 * calculated as bank * 4096 + n * 256
8877 * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector.
8878 * The start index for the nth Hw sector can be calculated
8880 * 10: The HW sector is 8K bytes
8881 * 11: The Hw sector size is 64K bytes */
8882 if (hsfsts.hsf_status.berasesz == 0x0) {
8883 /* Hw sector size 256 */
8884 sub_sector_size = ICH_FLASH_SEG_SIZE_256;
8885 bank_size = ICH_FLASH_SECTOR_SIZE;
8886 iteration = ICH_FLASH_SECTOR_SIZE / ICH_FLASH_SEG_SIZE_256;
8887 } else if (hsfsts.hsf_status.berasesz == 0x1) {
8888 bank_size = ICH_FLASH_SEG_SIZE_4K;
8890 } else if (hsfsts.hsf_status.berasesz == 0x3) {
8891 bank_size = ICH_FLASH_SEG_SIZE_64K;
8897 for (j = 0; j < iteration ; j++) {
8901 error = e1000_ich8_cycle_init(hw);
8902 if (error != E1000_SUCCESS) {
8907 /* Write a value 11 (block Erase) in Flash Cycle field in Hw flash
8909 hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL);
8910 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE;
8911 E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval);
8913 /* Write the last 24 bits of an index within the block into Flash
8914 * Linear address field in Flash Address. This probably needs to
8915 * be calculated here based off the on-chip erase sector size and
8916 * the software bank size (4, 8 or 64 KBytes) */
8917 flash_linear_address = bank * bank_size + j * sub_sector_size;
8918 flash_linear_address += hw->flash_base_addr;
8919 flash_linear_address &= ICH_FLASH_LINEAR_ADDR_MASK;
8921 E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address);
8923 error = e1000_ich8_flash_cycle(hw, ICH_FLASH_ERASE_TIMEOUT);
8924 /* Check if FCERR is set to 1. If 1, clear it and try the whole
8925 * sequence a few more times else Done */
8926 if (error == E1000_SUCCESS) {
8929 hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
8930 if (hsfsts.hsf_status.flcerr == 1) {
8931 /* repeat for some time before giving up */
8933 } else if (hsfsts.hsf_status.flcdone == 0) {
8938 } while ((count < ICH_FLASH_CYCLE_REPEAT_COUNT) && !error_flag);
8939 if (error_flag == 1)
8942 if (error_flag != 1)
8943 error = E1000_SUCCESS;
8948 e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw,
8949 uint32_t cnf_base_addr, uint32_t cnf_size)
8951 uint32_t ret_val = E1000_SUCCESS;
8952 uint16_t word_addr, reg_data, reg_addr;
8955 /* cnf_base_addr is in DWORD */
8956 word_addr = (uint16_t)(cnf_base_addr << 1);
8958 /* cnf_size is returned in size of dwords */
8959 for (i = 0; i < cnf_size; i++) {
8960 ret_val = e1000_read_eeprom(hw, (word_addr + i*2), 1, ®_data);
8964 ret_val = e1000_read_eeprom(hw, (word_addr + i*2 + 1), 1, ®_addr);
8968 ret_val = e1000_get_software_flag(hw);
8969 if (ret_val != E1000_SUCCESS)
8972 ret_val = e1000_write_phy_reg_ex(hw, (uint32_t)reg_addr, reg_data);
8974 e1000_release_software_flag(hw);
8981 /******************************************************************************
8982 * This function initializes the PHY from the NVM on ICH8 platforms. This
8983 * is needed due to an issue where the NVM configuration is not properly
8984 * autoloaded after power transitions. Therefore, after each PHY reset, we
8985 * will load the configuration data out of the NVM manually.
8987 * hw: Struct containing variables accessed by shared code
8988 *****************************************************************************/
8990 e1000_init_lcd_from_nvm(struct e1000_hw *hw)
8992 uint32_t reg_data, cnf_base_addr, cnf_size, ret_val, loop;
8994 if (hw->phy_type != e1000_phy_igp_3)
8995 return E1000_SUCCESS;
8997 /* Check if SW needs configure the PHY */
8998 reg_data = E1000_READ_REG(hw, FEXTNVM);
8999 if (!(reg_data & FEXTNVM_SW_CONFIG))
9000 return E1000_SUCCESS;
9002 /* Wait for basic configuration completes before proceeding*/
9005 reg_data = E1000_READ_REG(hw, STATUS) & E1000_STATUS_LAN_INIT_DONE;
9008 } while ((!reg_data) && (loop < 50));
9010 /* Clear the Init Done bit for the next init event */
9011 reg_data = E1000_READ_REG(hw, STATUS);
9012 reg_data &= ~E1000_STATUS_LAN_INIT_DONE;
9013 E1000_WRITE_REG(hw, STATUS, reg_data);
9015 /* Make sure HW does not configure LCD from PHY extended configuration
9016 before SW configuration */
9017 reg_data = E1000_READ_REG(hw, EXTCNF_CTRL);
9018 if ((reg_data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) == 0x0000) {
9019 reg_data = E1000_READ_REG(hw, EXTCNF_SIZE);
9020 cnf_size = reg_data & E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH;
9023 reg_data = E1000_READ_REG(hw, EXTCNF_CTRL);
9024 cnf_base_addr = reg_data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER;
9025 /* cnf_base_addr is in DWORD */
9026 cnf_base_addr >>= 16;
9028 /* Configure LCD from extended configuration region. */
9029 ret_val = e1000_init_lcd_from_nvm_config_region(hw, cnf_base_addr,
9036 return E1000_SUCCESS;