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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright(c) 1999 - 2018 Intel Corporation. */
3
4/* 80003ES2LAN Gigabit Ethernet Controller (Copper)
5 * 80003ES2LAN Gigabit Ethernet Controller (Serdes)
6 */
7
8#include "e1000.h"
9
10/* A table for the GG82563 cable length where the range is defined
11 * with a lower bound at "index" and the upper bound at
12 * "index + 5".
13 */
14static const u16 e1000_gg82563_cable_length_table[] = {
15 0, 60, 115, 150, 150, 60, 115, 150, 180, 180, 0xFF
16};
17
18#define GG82563_CABLE_LENGTH_TABLE_SIZE \
19 ARRAY_SIZE(e1000_gg82563_cable_length_table)
20
21static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw);
22static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
23static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
24static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw);
25static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw);
26static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw);
27static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex);
28static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
29 u16 *data);
30static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
31 u16 data);
32static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw);
33
34/**
35 * e1000_init_phy_params_80003es2lan - Init ESB2 PHY func ptrs.
36 * @hw: pointer to the HW structure
37 **/
38static s32 e1000_init_phy_params_80003es2lan(struct e1000_hw *hw)
39{
40 struct e1000_phy_info *phy = &hw->phy;
41 s32 ret_val;
42
43 if (hw->phy.media_type != e1000_media_type_copper) {
44 phy->type = e1000_phy_none;
45 return 0;
46 } else {
47 phy->ops.power_up = e1000_power_up_phy_copper;
48 phy->ops.power_down = e1000_power_down_phy_copper_80003es2lan;
49 }
50
51 phy->addr = 1;
52 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
53 phy->reset_delay_us = 100;
54 phy->type = e1000_phy_gg82563;
55
56 /* This can only be done after all function pointers are setup. */
57 ret_val = e1000e_get_phy_id(hw);
58
59 /* Verify phy id */
60 if (phy->id != GG82563_E_PHY_ID)
61 return -E1000_ERR_PHY;
62
63 return ret_val;
64}
65
66/**
67 * e1000_init_nvm_params_80003es2lan - Init ESB2 NVM func ptrs.
68 * @hw: pointer to the HW structure
69 **/
70static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw)
71{
72 struct e1000_nvm_info *nvm = &hw->nvm;
73 u32 eecd = er32(EECD);
74 u16 size;
75
76 nvm->opcode_bits = 8;
77 nvm->delay_usec = 1;
78 switch (nvm->override) {
79 case e1000_nvm_override_spi_large:
80 nvm->page_size = 32;
81 nvm->address_bits = 16;
82 break;
83 case e1000_nvm_override_spi_small:
84 nvm->page_size = 8;
85 nvm->address_bits = 8;
86 break;
87 default:
88 nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
89 nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
90 break;
91 }
92
93 nvm->type = e1000_nvm_eeprom_spi;
94
95 size = (u16)FIELD_GET(E1000_EECD_SIZE_EX_MASK, eecd);
96
97 /* Added to a constant, "size" becomes the left-shift value
98 * for setting word_size.
99 */
100 size += NVM_WORD_SIZE_BASE_SHIFT;
101
102 /* EEPROM access above 16k is unsupported */
103 if (size > 14)
104 size = 14;
105 nvm->word_size = BIT(size);
106
107 return 0;
108}
109
110/**
111 * e1000_init_mac_params_80003es2lan - Init ESB2 MAC func ptrs.
112 * @hw: pointer to the HW structure
113 **/
114static s32 e1000_init_mac_params_80003es2lan(struct e1000_hw *hw)
115{
116 struct e1000_mac_info *mac = &hw->mac;
117
118 /* Set media type and media-dependent function pointers */
119 switch (hw->adapter->pdev->device) {
120 case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
121 hw->phy.media_type = e1000_media_type_internal_serdes;
122 mac->ops.check_for_link = e1000e_check_for_serdes_link;
123 mac->ops.setup_physical_interface =
124 e1000e_setup_fiber_serdes_link;
125 break;
126 default:
127 hw->phy.media_type = e1000_media_type_copper;
128 mac->ops.check_for_link = e1000e_check_for_copper_link;
129 mac->ops.setup_physical_interface =
130 e1000_setup_copper_link_80003es2lan;
131 break;
132 }
133
134 /* Set mta register count */
135 mac->mta_reg_count = 128;
136 /* Set rar entry count */
137 mac->rar_entry_count = E1000_RAR_ENTRIES;
138 /* FWSM register */
139 mac->has_fwsm = true;
140 /* ARC supported; valid only if manageability features are enabled. */
141 mac->arc_subsystem_valid = !!(er32(FWSM) & E1000_FWSM_MODE_MASK);
142 /* Adaptive IFS not supported */
143 mac->adaptive_ifs = false;
144
145 /* set lan id for port to determine which phy lock to use */
146 hw->mac.ops.set_lan_id(hw);
147
148 return 0;
149}
150
151static s32 e1000_get_variants_80003es2lan(struct e1000_adapter *adapter)
152{
153 struct e1000_hw *hw = &adapter->hw;
154 s32 rc;
155
156 rc = e1000_init_mac_params_80003es2lan(hw);
157 if (rc)
158 return rc;
159
160 rc = e1000_init_nvm_params_80003es2lan(hw);
161 if (rc)
162 return rc;
163
164 rc = e1000_init_phy_params_80003es2lan(hw);
165 if (rc)
166 return rc;
167
168 return 0;
169}
170
171/**
172 * e1000_acquire_phy_80003es2lan - Acquire rights to access PHY
173 * @hw: pointer to the HW structure
174 *
175 * A wrapper to acquire access rights to the correct PHY.
176 **/
177static s32 e1000_acquire_phy_80003es2lan(struct e1000_hw *hw)
178{
179 u16 mask;
180
181 mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
182 return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
183}
184
185/**
186 * e1000_release_phy_80003es2lan - Release rights to access PHY
187 * @hw: pointer to the HW structure
188 *
189 * A wrapper to release access rights to the correct PHY.
190 **/
191static void e1000_release_phy_80003es2lan(struct e1000_hw *hw)
192{
193 u16 mask;
194
195 mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
196 e1000_release_swfw_sync_80003es2lan(hw, mask);
197}
198
199/**
200 * e1000_acquire_mac_csr_80003es2lan - Acquire right to access Kumeran register
201 * @hw: pointer to the HW structure
202 *
203 * Acquire the semaphore to access the Kumeran interface.
204 *
205 **/
206static s32 e1000_acquire_mac_csr_80003es2lan(struct e1000_hw *hw)
207{
208 u16 mask;
209
210 mask = E1000_SWFW_CSR_SM;
211
212 return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
213}
214
215/**
216 * e1000_release_mac_csr_80003es2lan - Release right to access Kumeran Register
217 * @hw: pointer to the HW structure
218 *
219 * Release the semaphore used to access the Kumeran interface
220 **/
221static void e1000_release_mac_csr_80003es2lan(struct e1000_hw *hw)
222{
223 u16 mask;
224
225 mask = E1000_SWFW_CSR_SM;
226
227 e1000_release_swfw_sync_80003es2lan(hw, mask);
228}
229
230/**
231 * e1000_acquire_nvm_80003es2lan - Acquire rights to access NVM
232 * @hw: pointer to the HW structure
233 *
234 * Acquire the semaphore to access the EEPROM.
235 **/
236static s32 e1000_acquire_nvm_80003es2lan(struct e1000_hw *hw)
237{
238 s32 ret_val;
239
240 ret_val = e1000_acquire_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
241 if (ret_val)
242 return ret_val;
243
244 ret_val = e1000e_acquire_nvm(hw);
245
246 if (ret_val)
247 e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
248
249 return ret_val;
250}
251
252/**
253 * e1000_release_nvm_80003es2lan - Relinquish rights to access NVM
254 * @hw: pointer to the HW structure
255 *
256 * Release the semaphore used to access the EEPROM.
257 **/
258static void e1000_release_nvm_80003es2lan(struct e1000_hw *hw)
259{
260 e1000e_release_nvm(hw);
261 e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
262}
263
264/**
265 * e1000_acquire_swfw_sync_80003es2lan - Acquire SW/FW semaphore
266 * @hw: pointer to the HW structure
267 * @mask: specifies which semaphore to acquire
268 *
269 * Acquire the SW/FW semaphore to access the PHY or NVM. The mask
270 * will also specify which port we're acquiring the lock for.
271 **/
272static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
273{
274 u32 swfw_sync;
275 u32 swmask = mask;
276 u32 fwmask = mask << 16;
277 s32 i = 0;
278 s32 timeout = 50;
279
280 while (i < timeout) {
281 if (e1000e_get_hw_semaphore(hw))
282 return -E1000_ERR_SWFW_SYNC;
283
284 swfw_sync = er32(SW_FW_SYNC);
285 if (!(swfw_sync & (fwmask | swmask)))
286 break;
287
288 /* Firmware currently using resource (fwmask)
289 * or other software thread using resource (swmask)
290 */
291 e1000e_put_hw_semaphore(hw);
292 mdelay(5);
293 i++;
294 }
295
296 if (i == timeout) {
297 e_dbg("Driver can't access resource, SW_FW_SYNC timeout.\n");
298 return -E1000_ERR_SWFW_SYNC;
299 }
300
301 swfw_sync |= swmask;
302 ew32(SW_FW_SYNC, swfw_sync);
303
304 e1000e_put_hw_semaphore(hw);
305
306 return 0;
307}
308
309/**
310 * e1000_release_swfw_sync_80003es2lan - Release SW/FW semaphore
311 * @hw: pointer to the HW structure
312 * @mask: specifies which semaphore to acquire
313 *
314 * Release the SW/FW semaphore used to access the PHY or NVM. The mask
315 * will also specify which port we're releasing the lock for.
316 **/
317static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
318{
319 u32 swfw_sync;
320
321 while (e1000e_get_hw_semaphore(hw) != 0)
322 ; /* Empty */
323
324 swfw_sync = er32(SW_FW_SYNC);
325 swfw_sync &= ~mask;
326 ew32(SW_FW_SYNC, swfw_sync);
327
328 e1000e_put_hw_semaphore(hw);
329}
330
331/**
332 * e1000_read_phy_reg_gg82563_80003es2lan - Read GG82563 PHY register
333 * @hw: pointer to the HW structure
334 * @offset: offset of the register to read
335 * @data: pointer to the data returned from the operation
336 *
337 * Read the GG82563 PHY register.
338 **/
339static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
340 u32 offset, u16 *data)
341{
342 s32 ret_val;
343 u32 page_select;
344 u16 temp;
345
346 ret_val = e1000_acquire_phy_80003es2lan(hw);
347 if (ret_val)
348 return ret_val;
349
350 /* Select Configuration Page */
351 if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
352 page_select = GG82563_PHY_PAGE_SELECT;
353 } else {
354 /* Use Alternative Page Select register to access
355 * registers 30 and 31
356 */
357 page_select = GG82563_PHY_PAGE_SELECT_ALT;
358 }
359
360 temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
361 ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
362 if (ret_val) {
363 e1000_release_phy_80003es2lan(hw);
364 return ret_val;
365 }
366
367 if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
368 /* The "ready" bit in the MDIC register may be incorrectly set
369 * before the device has completed the "Page Select" MDI
370 * transaction. So we wait 200us after each MDI command...
371 */
372 usleep_range(200, 400);
373
374 /* ...and verify the command was successful. */
375 ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
376
377 if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
378 e1000_release_phy_80003es2lan(hw);
379 return -E1000_ERR_PHY;
380 }
381
382 usleep_range(200, 400);
383
384 ret_val = e1000e_read_phy_reg_mdic(hw,
385 MAX_PHY_REG_ADDRESS & offset,
386 data);
387
388 usleep_range(200, 400);
389 } else {
390 ret_val = e1000e_read_phy_reg_mdic(hw,
391 MAX_PHY_REG_ADDRESS & offset,
392 data);
393 }
394
395 e1000_release_phy_80003es2lan(hw);
396
397 return ret_val;
398}
399
400/**
401 * e1000_write_phy_reg_gg82563_80003es2lan - Write GG82563 PHY register
402 * @hw: pointer to the HW structure
403 * @offset: offset of the register to read
404 * @data: value to write to the register
405 *
406 * Write to the GG82563 PHY register.
407 **/
408static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
409 u32 offset, u16 data)
410{
411 s32 ret_val;
412 u32 page_select;
413 u16 temp;
414
415 ret_val = e1000_acquire_phy_80003es2lan(hw);
416 if (ret_val)
417 return ret_val;
418
419 /* Select Configuration Page */
420 if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
421 page_select = GG82563_PHY_PAGE_SELECT;
422 } else {
423 /* Use Alternative Page Select register to access
424 * registers 30 and 31
425 */
426 page_select = GG82563_PHY_PAGE_SELECT_ALT;
427 }
428
429 temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
430 ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
431 if (ret_val) {
432 e1000_release_phy_80003es2lan(hw);
433 return ret_val;
434 }
435
436 if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
437 /* The "ready" bit in the MDIC register may be incorrectly set
438 * before the device has completed the "Page Select" MDI
439 * transaction. So we wait 200us after each MDI command...
440 */
441 usleep_range(200, 400);
442
443 /* ...and verify the command was successful. */
444 ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
445
446 if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
447 e1000_release_phy_80003es2lan(hw);
448 return -E1000_ERR_PHY;
449 }
450
451 usleep_range(200, 400);
452
453 ret_val = e1000e_write_phy_reg_mdic(hw,
454 MAX_PHY_REG_ADDRESS &
455 offset, data);
456
457 usleep_range(200, 400);
458 } else {
459 ret_val = e1000e_write_phy_reg_mdic(hw,
460 MAX_PHY_REG_ADDRESS &
461 offset, data);
462 }
463
464 e1000_release_phy_80003es2lan(hw);
465
466 return ret_val;
467}
468
469/**
470 * e1000_write_nvm_80003es2lan - Write to ESB2 NVM
471 * @hw: pointer to the HW structure
472 * @offset: offset of the register to read
473 * @words: number of words to write
474 * @data: buffer of data to write to the NVM
475 *
476 * Write "words" of data to the ESB2 NVM.
477 **/
478static s32 e1000_write_nvm_80003es2lan(struct e1000_hw *hw, u16 offset,
479 u16 words, u16 *data)
480{
481 return e1000e_write_nvm_spi(hw, offset, words, data);
482}
483
484/**
485 * e1000_get_cfg_done_80003es2lan - Wait for configuration to complete
486 * @hw: pointer to the HW structure
487 *
488 * Wait a specific amount of time for manageability processes to complete.
489 * This is a function pointer entry point called by the phy module.
490 **/
491static s32 e1000_get_cfg_done_80003es2lan(struct e1000_hw *hw)
492{
493 s32 timeout = PHY_CFG_TIMEOUT;
494 u32 mask = E1000_NVM_CFG_DONE_PORT_0;
495
496 if (hw->bus.func == 1)
497 mask = E1000_NVM_CFG_DONE_PORT_1;
498
499 while (timeout) {
500 if (er32(EEMNGCTL) & mask)
501 break;
502 usleep_range(1000, 2000);
503 timeout--;
504 }
505 if (!timeout) {
506 e_dbg("MNG configuration cycle has not completed.\n");
507 return -E1000_ERR_RESET;
508 }
509
510 return 0;
511}
512
513/**
514 * e1000_phy_force_speed_duplex_80003es2lan - Force PHY speed and duplex
515 * @hw: pointer to the HW structure
516 *
517 * Force the speed and duplex settings onto the PHY. This is a
518 * function pointer entry point called by the phy module.
519 **/
520static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw)
521{
522 s32 ret_val;
523 u16 phy_data;
524 bool link;
525
526 /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI
527 * forced whenever speed and duplex are forced.
528 */
529 ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
530 if (ret_val)
531 return ret_val;
532
533 phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_AUTO;
534 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, phy_data);
535 if (ret_val)
536 return ret_val;
537
538 e_dbg("GG82563 PSCR: %X\n", phy_data);
539
540 ret_val = e1e_rphy(hw, MII_BMCR, &phy_data);
541 if (ret_val)
542 return ret_val;
543
544 e1000e_phy_force_speed_duplex_setup(hw, &phy_data);
545
546 /* Reset the phy to commit changes. */
547 phy_data |= BMCR_RESET;
548
549 ret_val = e1e_wphy(hw, MII_BMCR, phy_data);
550 if (ret_val)
551 return ret_val;
552
553 udelay(1);
554
555 if (hw->phy.autoneg_wait_to_complete) {
556 e_dbg("Waiting for forced speed/duplex link on GG82563 phy.\n");
557
558 ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
559 100000, &link);
560 if (ret_val)
561 return ret_val;
562
563 if (!link) {
564 /* We didn't get link.
565 * Reset the DSP and cross our fingers.
566 */
567 ret_val = e1000e_phy_reset_dsp(hw);
568 if (ret_val)
569 return ret_val;
570 }
571
572 /* Try once more */
573 ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
574 100000, &link);
575 if (ret_val)
576 return ret_val;
577 }
578
579 ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data);
580 if (ret_val)
581 return ret_val;
582
583 /* Resetting the phy means we need to verify the TX_CLK corresponds
584 * to the link speed. 10Mbps -> 2.5MHz, else 25MHz.
585 */
586 phy_data &= ~GG82563_MSCR_TX_CLK_MASK;
587 if (hw->mac.forced_speed_duplex & E1000_ALL_10_SPEED)
588 phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5;
589 else
590 phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25;
591
592 /* In addition, we must re-enable CRS on Tx for both half and full
593 * duplex.
594 */
595 phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
596 ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data);
597
598 return ret_val;
599}
600
601/**
602 * e1000_get_cable_length_80003es2lan - Set approximate cable length
603 * @hw: pointer to the HW structure
604 *
605 * Find the approximate cable length as measured by the GG82563 PHY.
606 * This is a function pointer entry point called by the phy module.
607 **/
608static s32 e1000_get_cable_length_80003es2lan(struct e1000_hw *hw)
609{
610 struct e1000_phy_info *phy = &hw->phy;
611 s32 ret_val;
612 u16 phy_data, index;
613
614 ret_val = e1e_rphy(hw, GG82563_PHY_DSP_DISTANCE, &phy_data);
615 if (ret_val)
616 return ret_val;
617
618 index = phy_data & GG82563_DSPD_CABLE_LENGTH;
619
620 if (index >= GG82563_CABLE_LENGTH_TABLE_SIZE - 5)
621 return -E1000_ERR_PHY;
622
623 phy->min_cable_length = e1000_gg82563_cable_length_table[index];
624 phy->max_cable_length = e1000_gg82563_cable_length_table[index + 5];
625
626 phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;
627
628 return 0;
629}
630
631/**
632 * e1000_get_link_up_info_80003es2lan - Report speed and duplex
633 * @hw: pointer to the HW structure
634 * @speed: pointer to speed buffer
635 * @duplex: pointer to duplex buffer
636 *
637 * Retrieve the current speed and duplex configuration.
638 **/
639static s32 e1000_get_link_up_info_80003es2lan(struct e1000_hw *hw, u16 *speed,
640 u16 *duplex)
641{
642 s32 ret_val;
643
644 if (hw->phy.media_type == e1000_media_type_copper) {
645 ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex);
646 hw->phy.ops.cfg_on_link_up(hw);
647 } else {
648 ret_val = e1000e_get_speed_and_duplex_fiber_serdes(hw,
649 speed,
650 duplex);
651 }
652
653 return ret_val;
654}
655
656/**
657 * e1000_reset_hw_80003es2lan - Reset the ESB2 controller
658 * @hw: pointer to the HW structure
659 *
660 * Perform a global reset to the ESB2 controller.
661 **/
662static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw)
663{
664 u32 ctrl;
665 s32 ret_val;
666 u16 kum_reg_data;
667
668 /* Prevent the PCI-E bus from sticking if there is no TLP connection
669 * on the last TLP read/write transaction when MAC is reset.
670 */
671 ret_val = e1000e_disable_pcie_master(hw);
672 if (ret_val)
673 e_dbg("PCI-E Master disable polling has failed.\n");
674
675 e_dbg("Masking off all interrupts\n");
676 ew32(IMC, 0xffffffff);
677
678 ew32(RCTL, 0);
679 ew32(TCTL, E1000_TCTL_PSP);
680 e1e_flush();
681
682 usleep_range(10000, 11000);
683
684 ctrl = er32(CTRL);
685
686 ret_val = e1000_acquire_phy_80003es2lan(hw);
687 if (ret_val)
688 return ret_val;
689
690 e_dbg("Issuing a global reset to MAC\n");
691 ew32(CTRL, ctrl | E1000_CTRL_RST);
692 e1000_release_phy_80003es2lan(hw);
693
694 /* Disable IBIST slave mode (far-end loopback) */
695 ret_val =
696 e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
697 &kum_reg_data);
698 if (!ret_val) {
699 kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
700 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
701 E1000_KMRNCTRLSTA_INBAND_PARAM,
702 kum_reg_data);
703 if (ret_val)
704 e_dbg("Error disabling far-end loopback\n");
705 } else {
706 e_dbg("Error disabling far-end loopback\n");
707 }
708
709 ret_val = e1000e_get_auto_rd_done(hw);
710 if (ret_val)
711 /* We don't want to continue accessing MAC registers. */
712 return ret_val;
713
714 /* Clear any pending interrupt events. */
715 ew32(IMC, 0xffffffff);
716 er32(ICR);
717
718 return e1000_check_alt_mac_addr_generic(hw);
719}
720
721/**
722 * e1000_init_hw_80003es2lan - Initialize the ESB2 controller
723 * @hw: pointer to the HW structure
724 *
725 * Initialize the hw bits, LED, VFTA, MTA, link and hw counters.
726 **/
727static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw)
728{
729 struct e1000_mac_info *mac = &hw->mac;
730 u32 reg_data;
731 s32 ret_val;
732 u16 kum_reg_data;
733 u16 i;
734
735 e1000_initialize_hw_bits_80003es2lan(hw);
736
737 /* Initialize identification LED */
738 ret_val = mac->ops.id_led_init(hw);
739 /* An error is not fatal and we should not stop init due to this */
740 if (ret_val)
741 e_dbg("Error initializing identification LED\n");
742
743 /* Disabling VLAN filtering */
744 e_dbg("Initializing the IEEE VLAN\n");
745 mac->ops.clear_vfta(hw);
746
747 /* Setup the receive address. */
748 e1000e_init_rx_addrs(hw, mac->rar_entry_count);
749
750 /* Zero out the Multicast HASH table */
751 e_dbg("Zeroing the MTA\n");
752 for (i = 0; i < mac->mta_reg_count; i++)
753 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
754
755 /* Setup link and flow control */
756 ret_val = mac->ops.setup_link(hw);
757 if (ret_val)
758 return ret_val;
759
760 /* Disable IBIST slave mode (far-end loopback) */
761 ret_val =
762 e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
763 &kum_reg_data);
764 if (!ret_val) {
765 kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
766 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
767 E1000_KMRNCTRLSTA_INBAND_PARAM,
768 kum_reg_data);
769 if (ret_val)
770 e_dbg("Error disabling far-end loopback\n");
771 } else {
772 e_dbg("Error disabling far-end loopback\n");
773 }
774
775 /* Set the transmit descriptor write-back policy */
776 reg_data = er32(TXDCTL(0));
777 reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
778 E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
779 ew32(TXDCTL(0), reg_data);
780
781 /* ...for both queues. */
782 reg_data = er32(TXDCTL(1));
783 reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
784 E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
785 ew32(TXDCTL(1), reg_data);
786
787 /* Enable retransmit on late collisions */
788 reg_data = er32(TCTL);
789 reg_data |= E1000_TCTL_RTLC;
790 ew32(TCTL, reg_data);
791
792 /* Configure Gigabit Carry Extend Padding */
793 reg_data = er32(TCTL_EXT);
794 reg_data &= ~E1000_TCTL_EXT_GCEX_MASK;
795 reg_data |= DEFAULT_TCTL_EXT_GCEX_80003ES2LAN;
796 ew32(TCTL_EXT, reg_data);
797
798 /* Configure Transmit Inter-Packet Gap */
799 reg_data = er32(TIPG);
800 reg_data &= ~E1000_TIPG_IPGT_MASK;
801 reg_data |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
802 ew32(TIPG, reg_data);
803
804 reg_data = E1000_READ_REG_ARRAY(hw, E1000_FFLT, 0x0001);
805 reg_data &= ~0x00100000;
806 E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data);
807
808 /* default to true to enable the MDIC W/A */
809 hw->dev_spec.e80003es2lan.mdic_wa_enable = true;
810
811 ret_val =
812 e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_OFFSET >>
813 E1000_KMRNCTRLSTA_OFFSET_SHIFT, &i);
814 if (!ret_val) {
815 if ((i & E1000_KMRNCTRLSTA_OPMODE_MASK) ==
816 E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO)
817 hw->dev_spec.e80003es2lan.mdic_wa_enable = false;
818 }
819
820 /* Clear all of the statistics registers (clear on read). It is
821 * important that we do this after we have tried to establish link
822 * because the symbol error count will increment wildly if there
823 * is no link.
824 */
825 e1000_clear_hw_cntrs_80003es2lan(hw);
826
827 return ret_val;
828}
829
830/**
831 * e1000_initialize_hw_bits_80003es2lan - Init hw bits of ESB2
832 * @hw: pointer to the HW structure
833 *
834 * Initializes required hardware-dependent bits needed for normal operation.
835 **/
836static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw)
837{
838 u32 reg;
839
840 /* Transmit Descriptor Control 0 */
841 reg = er32(TXDCTL(0));
842 reg |= BIT(22);
843 ew32(TXDCTL(0), reg);
844
845 /* Transmit Descriptor Control 1 */
846 reg = er32(TXDCTL(1));
847 reg |= BIT(22);
848 ew32(TXDCTL(1), reg);
849
850 /* Transmit Arbitration Control 0 */
851 reg = er32(TARC(0));
852 reg &= ~(0xF << 27); /* 30:27 */
853 if (hw->phy.media_type != e1000_media_type_copper)
854 reg &= ~BIT(20);
855 ew32(TARC(0), reg);
856
857 /* Transmit Arbitration Control 1 */
858 reg = er32(TARC(1));
859 if (er32(TCTL) & E1000_TCTL_MULR)
860 reg &= ~BIT(28);
861 else
862 reg |= BIT(28);
863 ew32(TARC(1), reg);
864
865 /* Disable IPv6 extension header parsing because some malformed
866 * IPv6 headers can hang the Rx.
867 */
868 reg = er32(RFCTL);
869 reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
870 ew32(RFCTL, reg);
871}
872
873/**
874 * e1000_copper_link_setup_gg82563_80003es2lan - Configure GG82563 Link
875 * @hw: pointer to the HW structure
876 *
877 * Setup some GG82563 PHY registers for obtaining link
878 **/
879static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
880{
881 struct e1000_phy_info *phy = &hw->phy;
882 s32 ret_val;
883 u32 reg;
884 u16 data;
885
886 ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &data);
887 if (ret_val)
888 return ret_val;
889
890 data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
891 /* Use 25MHz for both link down and 1000Base-T for Tx clock. */
892 data |= GG82563_MSCR_TX_CLK_1000MBPS_25;
893
894 ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, data);
895 if (ret_val)
896 return ret_val;
897
898 /* Options:
899 * MDI/MDI-X = 0 (default)
900 * 0 - Auto for all speeds
901 * 1 - MDI mode
902 * 2 - MDI-X mode
903 * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
904 */
905 ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL, &data);
906 if (ret_val)
907 return ret_val;
908
909 data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK;
910
911 switch (phy->mdix) {
912 case 1:
913 data |= GG82563_PSCR_CROSSOVER_MODE_MDI;
914 break;
915 case 2:
916 data |= GG82563_PSCR_CROSSOVER_MODE_MDIX;
917 break;
918 case 0:
919 default:
920 data |= GG82563_PSCR_CROSSOVER_MODE_AUTO;
921 break;
922 }
923
924 /* Options:
925 * disable_polarity_correction = 0 (default)
926 * Automatic Correction for Reversed Cable Polarity
927 * 0 - Disabled
928 * 1 - Enabled
929 */
930 data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
931 if (phy->disable_polarity_correction)
932 data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
933
934 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, data);
935 if (ret_val)
936 return ret_val;
937
938 /* SW Reset the PHY so all changes take effect */
939 ret_val = hw->phy.ops.commit(hw);
940 if (ret_val) {
941 e_dbg("Error Resetting the PHY\n");
942 return ret_val;
943 }
944
945 /* Bypass Rx and Tx FIFO's */
946 reg = E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL;
947 data = (E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS |
948 E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS);
949 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, reg, data);
950 if (ret_val)
951 return ret_val;
952
953 reg = E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE;
954 ret_val = e1000_read_kmrn_reg_80003es2lan(hw, reg, &data);
955 if (ret_val)
956 return ret_val;
957 data |= E1000_KMRNCTRLSTA_OPMODE_E_IDLE;
958 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, reg, data);
959 if (ret_val)
960 return ret_val;
961
962 ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL_2, &data);
963 if (ret_val)
964 return ret_val;
965
966 data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG;
967 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL_2, data);
968 if (ret_val)
969 return ret_val;
970
971 reg = er32(CTRL_EXT);
972 reg &= ~E1000_CTRL_EXT_LINK_MODE_MASK;
973 ew32(CTRL_EXT, reg);
974
975 ret_val = e1e_rphy(hw, GG82563_PHY_PWR_MGMT_CTRL, &data);
976 if (ret_val)
977 return ret_val;
978
979 /* Do not init these registers when the HW is in IAMT mode, since the
980 * firmware will have already initialized them. We only initialize
981 * them if the HW is not in IAMT mode.
982 */
983 if (!hw->mac.ops.check_mng_mode(hw)) {
984 /* Enable Electrical Idle on the PHY */
985 data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE;
986 ret_val = e1e_wphy(hw, GG82563_PHY_PWR_MGMT_CTRL, data);
987 if (ret_val)
988 return ret_val;
989
990 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &data);
991 if (ret_val)
992 return ret_val;
993
994 data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
995 ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data);
996 if (ret_val)
997 return ret_val;
998 }
999
1000 /* Workaround: Disable padding in Kumeran interface in the MAC
1001 * and in the PHY to avoid CRC errors.
1002 */
1003 ret_val = e1e_rphy(hw, GG82563_PHY_INBAND_CTRL, &data);
1004 if (ret_val)
1005 return ret_val;
1006
1007 data |= GG82563_ICR_DIS_PADDING;
1008 ret_val = e1e_wphy(hw, GG82563_PHY_INBAND_CTRL, data);
1009 if (ret_val)
1010 return ret_val;
1011
1012 return 0;
1013}
1014
1015/**
1016 * e1000_setup_copper_link_80003es2lan - Setup Copper Link for ESB2
1017 * @hw: pointer to the HW structure
1018 *
1019 * Essentially a wrapper for setting up all things "copper" related.
1020 * This is a function pointer entry point called by the mac module.
1021 **/
1022static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw)
1023{
1024 u32 ctrl;
1025 s32 ret_val;
1026 u16 reg_data;
1027
1028 ctrl = er32(CTRL);
1029 ctrl |= E1000_CTRL_SLU;
1030 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1031 ew32(CTRL, ctrl);
1032
1033 /* Set the mac to wait the maximum time between each
1034 * iteration and increase the max iterations when
1035 * polling the phy; this fixes erroneous timeouts at 10Mbps.
1036 */
1037 /* these next three accesses were always meant to use page 0x34 using
1038 * GG82563_REG(0x34, N) but never did, so we've just corrected the call
1039 * to not drop bits
1040 */
1041 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, 4, 0xFFFF);
1042 if (ret_val)
1043 return ret_val;
1044 ret_val = e1000_read_kmrn_reg_80003es2lan(hw, 9, ®_data);
1045 if (ret_val)
1046 return ret_val;
1047 reg_data |= 0x3F;
1048 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, 9, reg_data);
1049 if (ret_val)
1050 return ret_val;
1051 ret_val =
1052 e1000_read_kmrn_reg_80003es2lan(hw,
1053 E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
1054 ®_data);
1055 if (ret_val)
1056 return ret_val;
1057 reg_data |= E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING;
1058 ret_val =
1059 e1000_write_kmrn_reg_80003es2lan(hw,
1060 E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
1061 reg_data);
1062 if (ret_val)
1063 return ret_val;
1064
1065 ret_val = e1000_copper_link_setup_gg82563_80003es2lan(hw);
1066 if (ret_val)
1067 return ret_val;
1068
1069 return e1000e_setup_copper_link(hw);
1070}
1071
1072/**
1073 * e1000_cfg_on_link_up_80003es2lan - es2 link configuration after link-up
1074 * @hw: pointer to the HW structure
1075 *
1076 * Configure the KMRN interface by applying last minute quirks for
1077 * 10/100 operation.
1078 **/
1079static s32 e1000_cfg_on_link_up_80003es2lan(struct e1000_hw *hw)
1080{
1081 s32 ret_val = 0;
1082 u16 speed;
1083 u16 duplex;
1084
1085 if (hw->phy.media_type == e1000_media_type_copper) {
1086 ret_val = e1000e_get_speed_and_duplex_copper(hw, &speed,
1087 &duplex);
1088 if (ret_val)
1089 return ret_val;
1090
1091 if (speed == SPEED_1000)
1092 ret_val = e1000_cfg_kmrn_1000_80003es2lan(hw);
1093 else
1094 ret_val = e1000_cfg_kmrn_10_100_80003es2lan(hw, duplex);
1095 }
1096
1097 return ret_val;
1098}
1099
1100/**
1101 * e1000_cfg_kmrn_10_100_80003es2lan - Apply "quirks" for 10/100 operation
1102 * @hw: pointer to the HW structure
1103 * @duplex: current duplex setting
1104 *
1105 * Configure the KMRN interface by applying last minute quirks for
1106 * 10/100 operation.
1107 **/
1108static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex)
1109{
1110 s32 ret_val;
1111 u32 tipg;
1112 u32 i = 0;
1113 u16 reg_data, reg_data2;
1114
1115 reg_data = E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT;
1116 ret_val =
1117 e1000_write_kmrn_reg_80003es2lan(hw,
1118 E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
1119 reg_data);
1120 if (ret_val)
1121 return ret_val;
1122
1123 /* Configure Transmit Inter-Packet Gap */
1124 tipg = er32(TIPG);
1125 tipg &= ~E1000_TIPG_IPGT_MASK;
1126 tipg |= DEFAULT_TIPG_IPGT_10_100_80003ES2LAN;
1127 ew32(TIPG, tipg);
1128
1129 do {
1130 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data);
1131 if (ret_val)
1132 return ret_val;
1133
1134 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data2);
1135 if (ret_val)
1136 return ret_val;
1137 i++;
1138 } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
1139
1140 if (duplex == HALF_DUPLEX)
1141 reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER;
1142 else
1143 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1144
1145 return e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
1146}
1147
1148/**
1149 * e1000_cfg_kmrn_1000_80003es2lan - Apply "quirks" for gigabit operation
1150 * @hw: pointer to the HW structure
1151 *
1152 * Configure the KMRN interface by applying last minute quirks for
1153 * gigabit operation.
1154 **/
1155static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw)
1156{
1157 s32 ret_val;
1158 u16 reg_data, reg_data2;
1159 u32 tipg;
1160 u32 i = 0;
1161
1162 reg_data = E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT;
1163 ret_val =
1164 e1000_write_kmrn_reg_80003es2lan(hw,
1165 E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
1166 reg_data);
1167 if (ret_val)
1168 return ret_val;
1169
1170 /* Configure Transmit Inter-Packet Gap */
1171 tipg = er32(TIPG);
1172 tipg &= ~E1000_TIPG_IPGT_MASK;
1173 tipg |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
1174 ew32(TIPG, tipg);
1175
1176 do {
1177 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data);
1178 if (ret_val)
1179 return ret_val;
1180
1181 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data2);
1182 if (ret_val)
1183 return ret_val;
1184 i++;
1185 } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
1186
1187 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1188
1189 return e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
1190}
1191
1192/**
1193 * e1000_read_kmrn_reg_80003es2lan - Read kumeran register
1194 * @hw: pointer to the HW structure
1195 * @offset: register offset to be read
1196 * @data: pointer to the read data
1197 *
1198 * Acquire semaphore, then read the PHY register at offset
1199 * using the kumeran interface. The information retrieved is stored in data.
1200 * Release the semaphore before exiting.
1201 **/
1202static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
1203 u16 *data)
1204{
1205 u32 kmrnctrlsta;
1206 s32 ret_val;
1207
1208 ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
1209 if (ret_val)
1210 return ret_val;
1211
1212 kmrnctrlsta = FIELD_PREP(E1000_KMRNCTRLSTA_OFFSET, offset) |
1213 E1000_KMRNCTRLSTA_REN;
1214 ew32(KMRNCTRLSTA, kmrnctrlsta);
1215 e1e_flush();
1216
1217 udelay(2);
1218
1219 kmrnctrlsta = er32(KMRNCTRLSTA);
1220 *data = (u16)kmrnctrlsta;
1221
1222 e1000_release_mac_csr_80003es2lan(hw);
1223
1224 return ret_val;
1225}
1226
1227/**
1228 * e1000_write_kmrn_reg_80003es2lan - Write kumeran register
1229 * @hw: pointer to the HW structure
1230 * @offset: register offset to write to
1231 * @data: data to write at register offset
1232 *
1233 * Acquire semaphore, then write the data to PHY register
1234 * at the offset using the kumeran interface. Release semaphore
1235 * before exiting.
1236 **/
1237static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
1238 u16 data)
1239{
1240 u32 kmrnctrlsta;
1241 s32 ret_val;
1242
1243 ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
1244 if (ret_val)
1245 return ret_val;
1246
1247 kmrnctrlsta = FIELD_PREP(E1000_KMRNCTRLSTA_OFFSET, offset) | data;
1248 ew32(KMRNCTRLSTA, kmrnctrlsta);
1249 e1e_flush();
1250
1251 udelay(2);
1252
1253 e1000_release_mac_csr_80003es2lan(hw);
1254
1255 return ret_val;
1256}
1257
1258/**
1259 * e1000_read_mac_addr_80003es2lan - Read device MAC address
1260 * @hw: pointer to the HW structure
1261 **/
1262static s32 e1000_read_mac_addr_80003es2lan(struct e1000_hw *hw)
1263{
1264 s32 ret_val;
1265
1266 /* If there's an alternate MAC address place it in RAR0
1267 * so that it will override the Si installed default perm
1268 * address.
1269 */
1270 ret_val = e1000_check_alt_mac_addr_generic(hw);
1271 if (ret_val)
1272 return ret_val;
1273
1274 return e1000_read_mac_addr_generic(hw);
1275}
1276
1277/**
1278 * e1000_power_down_phy_copper_80003es2lan - Remove link during PHY power down
1279 * @hw: pointer to the HW structure
1280 *
1281 * In the case of a PHY power down to save power, or to turn off link during a
1282 * driver unload, or wake on lan is not enabled, remove the link.
1283 **/
1284static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw)
1285{
1286 /* If the management interface is not enabled, then power down */
1287 if (!(hw->mac.ops.check_mng_mode(hw) ||
1288 hw->phy.ops.check_reset_block(hw)))
1289 e1000_power_down_phy_copper(hw);
1290}
1291
1292/**
1293 * e1000_clear_hw_cntrs_80003es2lan - Clear device specific hardware counters
1294 * @hw: pointer to the HW structure
1295 *
1296 * Clears the hardware counters by reading the counter registers.
1297 **/
1298static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw)
1299{
1300 e1000e_clear_hw_cntrs_base(hw);
1301
1302 er32(PRC64);
1303 er32(PRC127);
1304 er32(PRC255);
1305 er32(PRC511);
1306 er32(PRC1023);
1307 er32(PRC1522);
1308 er32(PTC64);
1309 er32(PTC127);
1310 er32(PTC255);
1311 er32(PTC511);
1312 er32(PTC1023);
1313 er32(PTC1522);
1314
1315 er32(ALGNERRC);
1316 er32(RXERRC);
1317 er32(TNCRS);
1318 er32(CEXTERR);
1319 er32(TSCTC);
1320 er32(TSCTFC);
1321
1322 er32(MGTPRC);
1323 er32(MGTPDC);
1324 er32(MGTPTC);
1325
1326 er32(IAC);
1327 er32(ICRXOC);
1328
1329 er32(ICRXPTC);
1330 er32(ICRXATC);
1331 er32(ICTXPTC);
1332 er32(ICTXATC);
1333 er32(ICTXQEC);
1334 er32(ICTXQMTC);
1335 er32(ICRXDMTC);
1336}
1337
1338static const struct e1000_mac_operations es2_mac_ops = {
1339 .read_mac_addr = e1000_read_mac_addr_80003es2lan,
1340 .id_led_init = e1000e_id_led_init_generic,
1341 .blink_led = e1000e_blink_led_generic,
1342 .check_mng_mode = e1000e_check_mng_mode_generic,
1343 /* check_for_link dependent on media type */
1344 .cleanup_led = e1000e_cleanup_led_generic,
1345 .clear_hw_cntrs = e1000_clear_hw_cntrs_80003es2lan,
1346 .get_bus_info = e1000e_get_bus_info_pcie,
1347 .set_lan_id = e1000_set_lan_id_multi_port_pcie,
1348 .get_link_up_info = e1000_get_link_up_info_80003es2lan,
1349 .led_on = e1000e_led_on_generic,
1350 .led_off = e1000e_led_off_generic,
1351 .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
1352 .write_vfta = e1000_write_vfta_generic,
1353 .clear_vfta = e1000_clear_vfta_generic,
1354 .reset_hw = e1000_reset_hw_80003es2lan,
1355 .init_hw = e1000_init_hw_80003es2lan,
1356 .setup_link = e1000e_setup_link_generic,
1357 /* setup_physical_interface dependent on media type */
1358 .setup_led = e1000e_setup_led_generic,
1359 .config_collision_dist = e1000e_config_collision_dist_generic,
1360 .rar_set = e1000e_rar_set_generic,
1361 .rar_get_count = e1000e_rar_get_count_generic,
1362};
1363
1364static const struct e1000_phy_operations es2_phy_ops = {
1365 .acquire = e1000_acquire_phy_80003es2lan,
1366 .check_polarity = e1000_check_polarity_m88,
1367 .check_reset_block = e1000e_check_reset_block_generic,
1368 .commit = e1000e_phy_sw_reset,
1369 .force_speed_duplex = e1000_phy_force_speed_duplex_80003es2lan,
1370 .get_cfg_done = e1000_get_cfg_done_80003es2lan,
1371 .get_cable_length = e1000_get_cable_length_80003es2lan,
1372 .get_info = e1000e_get_phy_info_m88,
1373 .read_reg = e1000_read_phy_reg_gg82563_80003es2lan,
1374 .release = e1000_release_phy_80003es2lan,
1375 .reset = e1000e_phy_hw_reset_generic,
1376 .set_d0_lplu_state = NULL,
1377 .set_d3_lplu_state = e1000e_set_d3_lplu_state,
1378 .write_reg = e1000_write_phy_reg_gg82563_80003es2lan,
1379 .cfg_on_link_up = e1000_cfg_on_link_up_80003es2lan,
1380};
1381
1382static const struct e1000_nvm_operations es2_nvm_ops = {
1383 .acquire = e1000_acquire_nvm_80003es2lan,
1384 .read = e1000e_read_nvm_eerd,
1385 .release = e1000_release_nvm_80003es2lan,
1386 .reload = e1000e_reload_nvm_generic,
1387 .update = e1000e_update_nvm_checksum_generic,
1388 .valid_led_default = e1000e_valid_led_default,
1389 .validate = e1000e_validate_nvm_checksum_generic,
1390 .write = e1000_write_nvm_80003es2lan,
1391};
1392
1393const struct e1000_info e1000_es2_info = {
1394 .mac = e1000_80003es2lan,
1395 .flags = FLAG_HAS_HW_VLAN_FILTER
1396 | FLAG_HAS_JUMBO_FRAMES
1397 | FLAG_HAS_WOL
1398 | FLAG_APME_IN_CTRL3
1399 | FLAG_HAS_CTRLEXT_ON_LOAD
1400 | FLAG_RX_NEEDS_RESTART /* errata */
1401 | FLAG_TARC_SET_BIT_ZERO /* errata */
1402 | FLAG_APME_CHECK_PORT_B
1403 | FLAG_DISABLE_FC_PAUSE_TIME, /* errata */
1404 .flags2 = FLAG2_DMA_BURST,
1405 .pba = 38,
1406 .max_hw_frame_size = DEFAULT_JUMBO,
1407 .get_variants = e1000_get_variants_80003es2lan,
1408 .mac_ops = &es2_mac_ops,
1409 .phy_ops = &es2_phy_ops,
1410 .nvm_ops = &es2_nvm_ops,
1411};
1/*******************************************************************************
2
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2012 Intel Corporation.
5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
21
22 Contact Information:
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26
27*******************************************************************************/
28
29/*
30 * 80003ES2LAN Gigabit Ethernet Controller (Copper)
31 * 80003ES2LAN Gigabit Ethernet Controller (Serdes)
32 */
33
34#include "e1000.h"
35
36#define E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL 0x00
37#define E1000_KMRNCTRLSTA_OFFSET_INB_CTRL 0x02
38#define E1000_KMRNCTRLSTA_OFFSET_HD_CTRL 0x10
39#define E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE 0x1F
40
41#define E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS 0x0008
42#define E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS 0x0800
43#define E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING 0x0010
44
45#define E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT 0x0004
46#define E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT 0x0000
47#define E1000_KMRNCTRLSTA_OPMODE_E_IDLE 0x2000
48
49#define E1000_KMRNCTRLSTA_OPMODE_MASK 0x000C
50#define E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO 0x0004
51
52#define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */
53#define DEFAULT_TCTL_EXT_GCEX_80003ES2LAN 0x00010000
54
55#define DEFAULT_TIPG_IPGT_1000_80003ES2LAN 0x8
56#define DEFAULT_TIPG_IPGT_10_100_80003ES2LAN 0x9
57
58/* GG82563 PHY Specific Status Register (Page 0, Register 16 */
59#define GG82563_PSCR_POLARITY_REVERSAL_DISABLE 0x0002 /* 1=Reversal Disab. */
60#define GG82563_PSCR_CROSSOVER_MODE_MASK 0x0060
61#define GG82563_PSCR_CROSSOVER_MODE_MDI 0x0000 /* 00=Manual MDI */
62#define GG82563_PSCR_CROSSOVER_MODE_MDIX 0x0020 /* 01=Manual MDIX */
63#define GG82563_PSCR_CROSSOVER_MODE_AUTO 0x0060 /* 11=Auto crossover */
64
65/* PHY Specific Control Register 2 (Page 0, Register 26) */
66#define GG82563_PSCR2_REVERSE_AUTO_NEG 0x2000
67 /* 1=Reverse Auto-Negotiation */
68
69/* MAC Specific Control Register (Page 2, Register 21) */
70/* Tx clock speed for Link Down and 1000BASE-T for the following speeds */
71#define GG82563_MSCR_TX_CLK_MASK 0x0007
72#define GG82563_MSCR_TX_CLK_10MBPS_2_5 0x0004
73#define GG82563_MSCR_TX_CLK_100MBPS_25 0x0005
74#define GG82563_MSCR_TX_CLK_1000MBPS_25 0x0007
75
76#define GG82563_MSCR_ASSERT_CRS_ON_TX 0x0010 /* 1=Assert */
77
78/* DSP Distance Register (Page 5, Register 26) */
79#define GG82563_DSPD_CABLE_LENGTH 0x0007 /* 0 = <50M
80 1 = 50-80M
81 2 = 80-110M
82 3 = 110-140M
83 4 = >140M */
84
85/* Kumeran Mode Control Register (Page 193, Register 16) */
86#define GG82563_KMCR_PASS_FALSE_CARRIER 0x0800
87
88/* Max number of times Kumeran read/write should be validated */
89#define GG82563_MAX_KMRN_RETRY 0x5
90
91/* Power Management Control Register (Page 193, Register 20) */
92#define GG82563_PMCR_ENABLE_ELECTRICAL_IDLE 0x0001
93 /* 1=Enable SERDES Electrical Idle */
94
95/* In-Band Control Register (Page 194, Register 18) */
96#define GG82563_ICR_DIS_PADDING 0x0010 /* Disable Padding */
97
98/*
99 * A table for the GG82563 cable length where the range is defined
100 * with a lower bound at "index" and the upper bound at
101 * "index + 5".
102 */
103static const u16 e1000_gg82563_cable_length_table[] = {
104 0, 60, 115, 150, 150, 60, 115, 150, 180, 180, 0xFF };
105#define GG82563_CABLE_LENGTH_TABLE_SIZE \
106 ARRAY_SIZE(e1000_gg82563_cable_length_table)
107
108static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw);
109static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
110static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
111static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw);
112static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw);
113static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw);
114static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex);
115static s32 e1000_cfg_on_link_up_80003es2lan(struct e1000_hw *hw);
116static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
117 u16 *data);
118static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
119 u16 data);
120static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw);
121
122/**
123 * e1000_init_phy_params_80003es2lan - Init ESB2 PHY func ptrs.
124 * @hw: pointer to the HW structure
125 **/
126static s32 e1000_init_phy_params_80003es2lan(struct e1000_hw *hw)
127{
128 struct e1000_phy_info *phy = &hw->phy;
129 s32 ret_val;
130
131 if (hw->phy.media_type != e1000_media_type_copper) {
132 phy->type = e1000_phy_none;
133 return 0;
134 } else {
135 phy->ops.power_up = e1000_power_up_phy_copper;
136 phy->ops.power_down = e1000_power_down_phy_copper_80003es2lan;
137 }
138
139 phy->addr = 1;
140 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
141 phy->reset_delay_us = 100;
142 phy->type = e1000_phy_gg82563;
143
144 /* This can only be done after all function pointers are setup. */
145 ret_val = e1000e_get_phy_id(hw);
146
147 /* Verify phy id */
148 if (phy->id != GG82563_E_PHY_ID)
149 return -E1000_ERR_PHY;
150
151 return ret_val;
152}
153
154/**
155 * e1000_init_nvm_params_80003es2lan - Init ESB2 NVM func ptrs.
156 * @hw: pointer to the HW structure
157 **/
158static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw)
159{
160 struct e1000_nvm_info *nvm = &hw->nvm;
161 u32 eecd = er32(EECD);
162 u16 size;
163
164 nvm->opcode_bits = 8;
165 nvm->delay_usec = 1;
166 switch (nvm->override) {
167 case e1000_nvm_override_spi_large:
168 nvm->page_size = 32;
169 nvm->address_bits = 16;
170 break;
171 case e1000_nvm_override_spi_small:
172 nvm->page_size = 8;
173 nvm->address_bits = 8;
174 break;
175 default:
176 nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
177 nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
178 break;
179 }
180
181 nvm->type = e1000_nvm_eeprom_spi;
182
183 size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
184 E1000_EECD_SIZE_EX_SHIFT);
185
186 /*
187 * Added to a constant, "size" becomes the left-shift value
188 * for setting word_size.
189 */
190 size += NVM_WORD_SIZE_BASE_SHIFT;
191
192 /* EEPROM access above 16k is unsupported */
193 if (size > 14)
194 size = 14;
195 nvm->word_size = 1 << size;
196
197 return 0;
198}
199
200/**
201 * e1000_init_mac_params_80003es2lan - Init ESB2 MAC func ptrs.
202 * @hw: pointer to the HW structure
203 **/
204static s32 e1000_init_mac_params_80003es2lan(struct e1000_hw *hw)
205{
206 struct e1000_mac_info *mac = &hw->mac;
207
208 /* Set media type and media-dependent function pointers */
209 switch (hw->adapter->pdev->device) {
210 case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
211 hw->phy.media_type = e1000_media_type_internal_serdes;
212 mac->ops.check_for_link = e1000e_check_for_serdes_link;
213 mac->ops.setup_physical_interface =
214 e1000e_setup_fiber_serdes_link;
215 break;
216 default:
217 hw->phy.media_type = e1000_media_type_copper;
218 mac->ops.check_for_link = e1000e_check_for_copper_link;
219 mac->ops.setup_physical_interface =
220 e1000_setup_copper_link_80003es2lan;
221 break;
222 }
223
224 /* Set mta register count */
225 mac->mta_reg_count = 128;
226 /* Set rar entry count */
227 mac->rar_entry_count = E1000_RAR_ENTRIES;
228 /* FWSM register */
229 mac->has_fwsm = true;
230 /* ARC supported; valid only if manageability features are enabled. */
231 mac->arc_subsystem_valid = !!(er32(FWSM) & E1000_FWSM_MODE_MASK);
232 /* Adaptive IFS not supported */
233 mac->adaptive_ifs = false;
234
235 /* set lan id for port to determine which phy lock to use */
236 hw->mac.ops.set_lan_id(hw);
237
238 return 0;
239}
240
241static s32 e1000_get_variants_80003es2lan(struct e1000_adapter *adapter)
242{
243 struct e1000_hw *hw = &adapter->hw;
244 s32 rc;
245
246 rc = e1000_init_mac_params_80003es2lan(hw);
247 if (rc)
248 return rc;
249
250 rc = e1000_init_nvm_params_80003es2lan(hw);
251 if (rc)
252 return rc;
253
254 rc = e1000_init_phy_params_80003es2lan(hw);
255 if (rc)
256 return rc;
257
258 return 0;
259}
260
261/**
262 * e1000_acquire_phy_80003es2lan - Acquire rights to access PHY
263 * @hw: pointer to the HW structure
264 *
265 * A wrapper to acquire access rights to the correct PHY.
266 **/
267static s32 e1000_acquire_phy_80003es2lan(struct e1000_hw *hw)
268{
269 u16 mask;
270
271 mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
272 return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
273}
274
275/**
276 * e1000_release_phy_80003es2lan - Release rights to access PHY
277 * @hw: pointer to the HW structure
278 *
279 * A wrapper to release access rights to the correct PHY.
280 **/
281static void e1000_release_phy_80003es2lan(struct e1000_hw *hw)
282{
283 u16 mask;
284
285 mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
286 e1000_release_swfw_sync_80003es2lan(hw, mask);
287}
288
289/**
290 * e1000_acquire_mac_csr_80003es2lan - Acquire right to access Kumeran register
291 * @hw: pointer to the HW structure
292 *
293 * Acquire the semaphore to access the Kumeran interface.
294 *
295 **/
296static s32 e1000_acquire_mac_csr_80003es2lan(struct e1000_hw *hw)
297{
298 u16 mask;
299
300 mask = E1000_SWFW_CSR_SM;
301
302 return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
303}
304
305/**
306 * e1000_release_mac_csr_80003es2lan - Release right to access Kumeran Register
307 * @hw: pointer to the HW structure
308 *
309 * Release the semaphore used to access the Kumeran interface
310 **/
311static void e1000_release_mac_csr_80003es2lan(struct e1000_hw *hw)
312{
313 u16 mask;
314
315 mask = E1000_SWFW_CSR_SM;
316
317 e1000_release_swfw_sync_80003es2lan(hw, mask);
318}
319
320/**
321 * e1000_acquire_nvm_80003es2lan - Acquire rights to access NVM
322 * @hw: pointer to the HW structure
323 *
324 * Acquire the semaphore to access the EEPROM.
325 **/
326static s32 e1000_acquire_nvm_80003es2lan(struct e1000_hw *hw)
327{
328 s32 ret_val;
329
330 ret_val = e1000_acquire_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
331 if (ret_val)
332 return ret_val;
333
334 ret_val = e1000e_acquire_nvm(hw);
335
336 if (ret_val)
337 e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
338
339 return ret_val;
340}
341
342/**
343 * e1000_release_nvm_80003es2lan - Relinquish rights to access NVM
344 * @hw: pointer to the HW structure
345 *
346 * Release the semaphore used to access the EEPROM.
347 **/
348static void e1000_release_nvm_80003es2lan(struct e1000_hw *hw)
349{
350 e1000e_release_nvm(hw);
351 e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
352}
353
354/**
355 * e1000_acquire_swfw_sync_80003es2lan - Acquire SW/FW semaphore
356 * @hw: pointer to the HW structure
357 * @mask: specifies which semaphore to acquire
358 *
359 * Acquire the SW/FW semaphore to access the PHY or NVM. The mask
360 * will also specify which port we're acquiring the lock for.
361 **/
362static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
363{
364 u32 swfw_sync;
365 u32 swmask = mask;
366 u32 fwmask = mask << 16;
367 s32 i = 0;
368 s32 timeout = 50;
369
370 while (i < timeout) {
371 if (e1000e_get_hw_semaphore(hw))
372 return -E1000_ERR_SWFW_SYNC;
373
374 swfw_sync = er32(SW_FW_SYNC);
375 if (!(swfw_sync & (fwmask | swmask)))
376 break;
377
378 /*
379 * Firmware currently using resource (fwmask)
380 * or other software thread using resource (swmask)
381 */
382 e1000e_put_hw_semaphore(hw);
383 mdelay(5);
384 i++;
385 }
386
387 if (i == timeout) {
388 e_dbg("Driver can't access resource, SW_FW_SYNC timeout.\n");
389 return -E1000_ERR_SWFW_SYNC;
390 }
391
392 swfw_sync |= swmask;
393 ew32(SW_FW_SYNC, swfw_sync);
394
395 e1000e_put_hw_semaphore(hw);
396
397 return 0;
398}
399
400/**
401 * e1000_release_swfw_sync_80003es2lan - Release SW/FW semaphore
402 * @hw: pointer to the HW structure
403 * @mask: specifies which semaphore to acquire
404 *
405 * Release the SW/FW semaphore used to access the PHY or NVM. The mask
406 * will also specify which port we're releasing the lock for.
407 **/
408static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
409{
410 u32 swfw_sync;
411
412 while (e1000e_get_hw_semaphore(hw) != 0)
413 ; /* Empty */
414
415 swfw_sync = er32(SW_FW_SYNC);
416 swfw_sync &= ~mask;
417 ew32(SW_FW_SYNC, swfw_sync);
418
419 e1000e_put_hw_semaphore(hw);
420}
421
422/**
423 * e1000_read_phy_reg_gg82563_80003es2lan - Read GG82563 PHY register
424 * @hw: pointer to the HW structure
425 * @offset: offset of the register to read
426 * @data: pointer to the data returned from the operation
427 *
428 * Read the GG82563 PHY register.
429 **/
430static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
431 u32 offset, u16 *data)
432{
433 s32 ret_val;
434 u32 page_select;
435 u16 temp;
436
437 ret_val = e1000_acquire_phy_80003es2lan(hw);
438 if (ret_val)
439 return ret_val;
440
441 /* Select Configuration Page */
442 if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
443 page_select = GG82563_PHY_PAGE_SELECT;
444 } else {
445 /*
446 * Use Alternative Page Select register to access
447 * registers 30 and 31
448 */
449 page_select = GG82563_PHY_PAGE_SELECT_ALT;
450 }
451
452 temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
453 ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
454 if (ret_val) {
455 e1000_release_phy_80003es2lan(hw);
456 return ret_val;
457 }
458
459 if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
460 /*
461 * The "ready" bit in the MDIC register may be incorrectly set
462 * before the device has completed the "Page Select" MDI
463 * transaction. So we wait 200us after each MDI command...
464 */
465 udelay(200);
466
467 /* ...and verify the command was successful. */
468 ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
469
470 if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
471 e1000_release_phy_80003es2lan(hw);
472 return -E1000_ERR_PHY;
473 }
474
475 udelay(200);
476
477 ret_val = e1000e_read_phy_reg_mdic(hw,
478 MAX_PHY_REG_ADDRESS & offset,
479 data);
480
481 udelay(200);
482 } else {
483 ret_val = e1000e_read_phy_reg_mdic(hw,
484 MAX_PHY_REG_ADDRESS & offset,
485 data);
486 }
487
488 e1000_release_phy_80003es2lan(hw);
489
490 return ret_val;
491}
492
493/**
494 * e1000_write_phy_reg_gg82563_80003es2lan - Write GG82563 PHY register
495 * @hw: pointer to the HW structure
496 * @offset: offset of the register to read
497 * @data: value to write to the register
498 *
499 * Write to the GG82563 PHY register.
500 **/
501static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
502 u32 offset, u16 data)
503{
504 s32 ret_val;
505 u32 page_select;
506 u16 temp;
507
508 ret_val = e1000_acquire_phy_80003es2lan(hw);
509 if (ret_val)
510 return ret_val;
511
512 /* Select Configuration Page */
513 if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
514 page_select = GG82563_PHY_PAGE_SELECT;
515 } else {
516 /*
517 * Use Alternative Page Select register to access
518 * registers 30 and 31
519 */
520 page_select = GG82563_PHY_PAGE_SELECT_ALT;
521 }
522
523 temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
524 ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
525 if (ret_val) {
526 e1000_release_phy_80003es2lan(hw);
527 return ret_val;
528 }
529
530 if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
531 /*
532 * The "ready" bit in the MDIC register may be incorrectly set
533 * before the device has completed the "Page Select" MDI
534 * transaction. So we wait 200us after each MDI command...
535 */
536 udelay(200);
537
538 /* ...and verify the command was successful. */
539 ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
540
541 if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
542 e1000_release_phy_80003es2lan(hw);
543 return -E1000_ERR_PHY;
544 }
545
546 udelay(200);
547
548 ret_val = e1000e_write_phy_reg_mdic(hw,
549 MAX_PHY_REG_ADDRESS & offset,
550 data);
551
552 udelay(200);
553 } else {
554 ret_val = e1000e_write_phy_reg_mdic(hw,
555 MAX_PHY_REG_ADDRESS & offset,
556 data);
557 }
558
559 e1000_release_phy_80003es2lan(hw);
560
561 return ret_val;
562}
563
564/**
565 * e1000_write_nvm_80003es2lan - Write to ESB2 NVM
566 * @hw: pointer to the HW structure
567 * @offset: offset of the register to read
568 * @words: number of words to write
569 * @data: buffer of data to write to the NVM
570 *
571 * Write "words" of data to the ESB2 NVM.
572 **/
573static s32 e1000_write_nvm_80003es2lan(struct e1000_hw *hw, u16 offset,
574 u16 words, u16 *data)
575{
576 return e1000e_write_nvm_spi(hw, offset, words, data);
577}
578
579/**
580 * e1000_get_cfg_done_80003es2lan - Wait for configuration to complete
581 * @hw: pointer to the HW structure
582 *
583 * Wait a specific amount of time for manageability processes to complete.
584 * This is a function pointer entry point called by the phy module.
585 **/
586static s32 e1000_get_cfg_done_80003es2lan(struct e1000_hw *hw)
587{
588 s32 timeout = PHY_CFG_TIMEOUT;
589 u32 mask = E1000_NVM_CFG_DONE_PORT_0;
590
591 if (hw->bus.func == 1)
592 mask = E1000_NVM_CFG_DONE_PORT_1;
593
594 while (timeout) {
595 if (er32(EEMNGCTL) & mask)
596 break;
597 usleep_range(1000, 2000);
598 timeout--;
599 }
600 if (!timeout) {
601 e_dbg("MNG configuration cycle has not completed.\n");
602 return -E1000_ERR_RESET;
603 }
604
605 return 0;
606}
607
608/**
609 * e1000_phy_force_speed_duplex_80003es2lan - Force PHY speed and duplex
610 * @hw: pointer to the HW structure
611 *
612 * Force the speed and duplex settings onto the PHY. This is a
613 * function pointer entry point called by the phy module.
614 **/
615static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw)
616{
617 s32 ret_val;
618 u16 phy_data;
619 bool link;
620
621 /*
622 * Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI
623 * forced whenever speed and duplex are forced.
624 */
625 ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
626 if (ret_val)
627 return ret_val;
628
629 phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_AUTO;
630 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, phy_data);
631 if (ret_val)
632 return ret_val;
633
634 e_dbg("GG82563 PSCR: %X\n", phy_data);
635
636 ret_val = e1e_rphy(hw, PHY_CONTROL, &phy_data);
637 if (ret_val)
638 return ret_val;
639
640 e1000e_phy_force_speed_duplex_setup(hw, &phy_data);
641
642 /* Reset the phy to commit changes. */
643 phy_data |= MII_CR_RESET;
644
645 ret_val = e1e_wphy(hw, PHY_CONTROL, phy_data);
646 if (ret_val)
647 return ret_val;
648
649 udelay(1);
650
651 if (hw->phy.autoneg_wait_to_complete) {
652 e_dbg("Waiting for forced speed/duplex link on GG82563 phy.\n");
653
654 ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
655 100000, &link);
656 if (ret_val)
657 return ret_val;
658
659 if (!link) {
660 /*
661 * We didn't get link.
662 * Reset the DSP and cross our fingers.
663 */
664 ret_val = e1000e_phy_reset_dsp(hw);
665 if (ret_val)
666 return ret_val;
667 }
668
669 /* Try once more */
670 ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
671 100000, &link);
672 if (ret_val)
673 return ret_val;
674 }
675
676 ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data);
677 if (ret_val)
678 return ret_val;
679
680 /*
681 * Resetting the phy means we need to verify the TX_CLK corresponds
682 * to the link speed. 10Mbps -> 2.5MHz, else 25MHz.
683 */
684 phy_data &= ~GG82563_MSCR_TX_CLK_MASK;
685 if (hw->mac.forced_speed_duplex & E1000_ALL_10_SPEED)
686 phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5;
687 else
688 phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25;
689
690 /*
691 * In addition, we must re-enable CRS on Tx for both half and full
692 * duplex.
693 */
694 phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
695 ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data);
696
697 return ret_val;
698}
699
700/**
701 * e1000_get_cable_length_80003es2lan - Set approximate cable length
702 * @hw: pointer to the HW structure
703 *
704 * Find the approximate cable length as measured by the GG82563 PHY.
705 * This is a function pointer entry point called by the phy module.
706 **/
707static s32 e1000_get_cable_length_80003es2lan(struct e1000_hw *hw)
708{
709 struct e1000_phy_info *phy = &hw->phy;
710 s32 ret_val = 0;
711 u16 phy_data, index;
712
713 ret_val = e1e_rphy(hw, GG82563_PHY_DSP_DISTANCE, &phy_data);
714 if (ret_val)
715 return ret_val;
716
717 index = phy_data & GG82563_DSPD_CABLE_LENGTH;
718
719 if (index >= GG82563_CABLE_LENGTH_TABLE_SIZE - 5)
720 return -E1000_ERR_PHY;
721
722 phy->min_cable_length = e1000_gg82563_cable_length_table[index];
723 phy->max_cable_length = e1000_gg82563_cable_length_table[index + 5];
724
725 phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;
726
727 return 0;
728}
729
730/**
731 * e1000_get_link_up_info_80003es2lan - Report speed and duplex
732 * @hw: pointer to the HW structure
733 * @speed: pointer to speed buffer
734 * @duplex: pointer to duplex buffer
735 *
736 * Retrieve the current speed and duplex configuration.
737 **/
738static s32 e1000_get_link_up_info_80003es2lan(struct e1000_hw *hw, u16 *speed,
739 u16 *duplex)
740{
741 s32 ret_val;
742
743 if (hw->phy.media_type == e1000_media_type_copper) {
744 ret_val = e1000e_get_speed_and_duplex_copper(hw,
745 speed,
746 duplex);
747 hw->phy.ops.cfg_on_link_up(hw);
748 } else {
749 ret_val = e1000e_get_speed_and_duplex_fiber_serdes(hw,
750 speed,
751 duplex);
752 }
753
754 return ret_val;
755}
756
757/**
758 * e1000_reset_hw_80003es2lan - Reset the ESB2 controller
759 * @hw: pointer to the HW structure
760 *
761 * Perform a global reset to the ESB2 controller.
762 **/
763static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw)
764{
765 u32 ctrl;
766 s32 ret_val;
767 u16 kum_reg_data;
768
769 /*
770 * Prevent the PCI-E bus from sticking if there is no TLP connection
771 * on the last TLP read/write transaction when MAC is reset.
772 */
773 ret_val = e1000e_disable_pcie_master(hw);
774 if (ret_val)
775 e_dbg("PCI-E Master disable polling has failed.\n");
776
777 e_dbg("Masking off all interrupts\n");
778 ew32(IMC, 0xffffffff);
779
780 ew32(RCTL, 0);
781 ew32(TCTL, E1000_TCTL_PSP);
782 e1e_flush();
783
784 usleep_range(10000, 20000);
785
786 ctrl = er32(CTRL);
787
788 ret_val = e1000_acquire_phy_80003es2lan(hw);
789 e_dbg("Issuing a global reset to MAC\n");
790 ew32(CTRL, ctrl | E1000_CTRL_RST);
791 e1000_release_phy_80003es2lan(hw);
792
793 /* Disable IBIST slave mode (far-end loopback) */
794 e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
795 &kum_reg_data);
796 kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
797 e1000_write_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
798 kum_reg_data);
799
800 ret_val = e1000e_get_auto_rd_done(hw);
801 if (ret_val)
802 /* We don't want to continue accessing MAC registers. */
803 return ret_val;
804
805 /* Clear any pending interrupt events. */
806 ew32(IMC, 0xffffffff);
807 er32(ICR);
808
809 return e1000_check_alt_mac_addr_generic(hw);
810}
811
812/**
813 * e1000_init_hw_80003es2lan - Initialize the ESB2 controller
814 * @hw: pointer to the HW structure
815 *
816 * Initialize the hw bits, LED, VFTA, MTA, link and hw counters.
817 **/
818static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw)
819{
820 struct e1000_mac_info *mac = &hw->mac;
821 u32 reg_data;
822 s32 ret_val;
823 u16 kum_reg_data;
824 u16 i;
825
826 e1000_initialize_hw_bits_80003es2lan(hw);
827
828 /* Initialize identification LED */
829 ret_val = mac->ops.id_led_init(hw);
830 if (ret_val)
831 e_dbg("Error initializing identification LED\n");
832 /* This is not fatal and we should not stop init due to this */
833
834 /* Disabling VLAN filtering */
835 e_dbg("Initializing the IEEE VLAN\n");
836 mac->ops.clear_vfta(hw);
837
838 /* Setup the receive address. */
839 e1000e_init_rx_addrs(hw, mac->rar_entry_count);
840
841 /* Zero out the Multicast HASH table */
842 e_dbg("Zeroing the MTA\n");
843 for (i = 0; i < mac->mta_reg_count; i++)
844 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
845
846 /* Setup link and flow control */
847 ret_val = mac->ops.setup_link(hw);
848
849 /* Disable IBIST slave mode (far-end loopback) */
850 e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
851 &kum_reg_data);
852 kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
853 e1000_write_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
854 kum_reg_data);
855
856 /* Set the transmit descriptor write-back policy */
857 reg_data = er32(TXDCTL(0));
858 reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
859 E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC;
860 ew32(TXDCTL(0), reg_data);
861
862 /* ...for both queues. */
863 reg_data = er32(TXDCTL(1));
864 reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
865 E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC;
866 ew32(TXDCTL(1), reg_data);
867
868 /* Enable retransmit on late collisions */
869 reg_data = er32(TCTL);
870 reg_data |= E1000_TCTL_RTLC;
871 ew32(TCTL, reg_data);
872
873 /* Configure Gigabit Carry Extend Padding */
874 reg_data = er32(TCTL_EXT);
875 reg_data &= ~E1000_TCTL_EXT_GCEX_MASK;
876 reg_data |= DEFAULT_TCTL_EXT_GCEX_80003ES2LAN;
877 ew32(TCTL_EXT, reg_data);
878
879 /* Configure Transmit Inter-Packet Gap */
880 reg_data = er32(TIPG);
881 reg_data &= ~E1000_TIPG_IPGT_MASK;
882 reg_data |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
883 ew32(TIPG, reg_data);
884
885 reg_data = E1000_READ_REG_ARRAY(hw, E1000_FFLT, 0x0001);
886 reg_data &= ~0x00100000;
887 E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data);
888
889 /* default to true to enable the MDIC W/A */
890 hw->dev_spec.e80003es2lan.mdic_wa_enable = true;
891
892 ret_val = e1000_read_kmrn_reg_80003es2lan(hw,
893 E1000_KMRNCTRLSTA_OFFSET >>
894 E1000_KMRNCTRLSTA_OFFSET_SHIFT,
895 &i);
896 if (!ret_val) {
897 if ((i & E1000_KMRNCTRLSTA_OPMODE_MASK) ==
898 E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO)
899 hw->dev_spec.e80003es2lan.mdic_wa_enable = false;
900 }
901
902 /*
903 * Clear all of the statistics registers (clear on read). It is
904 * important that we do this after we have tried to establish link
905 * because the symbol error count will increment wildly if there
906 * is no link.
907 */
908 e1000_clear_hw_cntrs_80003es2lan(hw);
909
910 return ret_val;
911}
912
913/**
914 * e1000_initialize_hw_bits_80003es2lan - Init hw bits of ESB2
915 * @hw: pointer to the HW structure
916 *
917 * Initializes required hardware-dependent bits needed for normal operation.
918 **/
919static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw)
920{
921 u32 reg;
922
923 /* Transmit Descriptor Control 0 */
924 reg = er32(TXDCTL(0));
925 reg |= (1 << 22);
926 ew32(TXDCTL(0), reg);
927
928 /* Transmit Descriptor Control 1 */
929 reg = er32(TXDCTL(1));
930 reg |= (1 << 22);
931 ew32(TXDCTL(1), reg);
932
933 /* Transmit Arbitration Control 0 */
934 reg = er32(TARC(0));
935 reg &= ~(0xF << 27); /* 30:27 */
936 if (hw->phy.media_type != e1000_media_type_copper)
937 reg &= ~(1 << 20);
938 ew32(TARC(0), reg);
939
940 /* Transmit Arbitration Control 1 */
941 reg = er32(TARC(1));
942 if (er32(TCTL) & E1000_TCTL_MULR)
943 reg &= ~(1 << 28);
944 else
945 reg |= (1 << 28);
946 ew32(TARC(1), reg);
947
948 /*
949 * Disable IPv6 extension header parsing because some malformed
950 * IPv6 headers can hang the Rx.
951 */
952 reg = er32(RFCTL);
953 reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
954 ew32(RFCTL, reg);
955}
956
957/**
958 * e1000_copper_link_setup_gg82563_80003es2lan - Configure GG82563 Link
959 * @hw: pointer to the HW structure
960 *
961 * Setup some GG82563 PHY registers for obtaining link
962 **/
963static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
964{
965 struct e1000_phy_info *phy = &hw->phy;
966 s32 ret_val;
967 u32 ctrl_ext;
968 u16 data;
969
970 ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &data);
971 if (ret_val)
972 return ret_val;
973
974 data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
975 /* Use 25MHz for both link down and 1000Base-T for Tx clock. */
976 data |= GG82563_MSCR_TX_CLK_1000MBPS_25;
977
978 ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, data);
979 if (ret_val)
980 return ret_val;
981
982 /*
983 * Options:
984 * MDI/MDI-X = 0 (default)
985 * 0 - Auto for all speeds
986 * 1 - MDI mode
987 * 2 - MDI-X mode
988 * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
989 */
990 ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL, &data);
991 if (ret_val)
992 return ret_val;
993
994 data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK;
995
996 switch (phy->mdix) {
997 case 1:
998 data |= GG82563_PSCR_CROSSOVER_MODE_MDI;
999 break;
1000 case 2:
1001 data |= GG82563_PSCR_CROSSOVER_MODE_MDIX;
1002 break;
1003 case 0:
1004 default:
1005 data |= GG82563_PSCR_CROSSOVER_MODE_AUTO;
1006 break;
1007 }
1008
1009 /*
1010 * Options:
1011 * disable_polarity_correction = 0 (default)
1012 * Automatic Correction for Reversed Cable Polarity
1013 * 0 - Disabled
1014 * 1 - Enabled
1015 */
1016 data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
1017 if (phy->disable_polarity_correction)
1018 data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
1019
1020 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, data);
1021 if (ret_val)
1022 return ret_val;
1023
1024 /* SW Reset the PHY so all changes take effect */
1025 ret_val = e1000e_commit_phy(hw);
1026 if (ret_val) {
1027 e_dbg("Error Resetting the PHY\n");
1028 return ret_val;
1029 }
1030
1031 /* Bypass Rx and Tx FIFO's */
1032 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1033 E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL,
1034 E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS |
1035 E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS);
1036 if (ret_val)
1037 return ret_val;
1038
1039 ret_val = e1000_read_kmrn_reg_80003es2lan(hw,
1040 E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE,
1041 &data);
1042 if (ret_val)
1043 return ret_val;
1044 data |= E1000_KMRNCTRLSTA_OPMODE_E_IDLE;
1045 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1046 E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE,
1047 data);
1048 if (ret_val)
1049 return ret_val;
1050
1051 ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL_2, &data);
1052 if (ret_val)
1053 return ret_val;
1054
1055 data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG;
1056 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL_2, data);
1057 if (ret_val)
1058 return ret_val;
1059
1060 ctrl_ext = er32(CTRL_EXT);
1061 ctrl_ext &= ~(E1000_CTRL_EXT_LINK_MODE_MASK);
1062 ew32(CTRL_EXT, ctrl_ext);
1063
1064 ret_val = e1e_rphy(hw, GG82563_PHY_PWR_MGMT_CTRL, &data);
1065 if (ret_val)
1066 return ret_val;
1067
1068 /*
1069 * Do not init these registers when the HW is in IAMT mode, since the
1070 * firmware will have already initialized them. We only initialize
1071 * them if the HW is not in IAMT mode.
1072 */
1073 if (!hw->mac.ops.check_mng_mode(hw)) {
1074 /* Enable Electrical Idle on the PHY */
1075 data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE;
1076 ret_val = e1e_wphy(hw, GG82563_PHY_PWR_MGMT_CTRL, data);
1077 if (ret_val)
1078 return ret_val;
1079
1080 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &data);
1081 if (ret_val)
1082 return ret_val;
1083
1084 data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1085 ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data);
1086 if (ret_val)
1087 return ret_val;
1088 }
1089
1090 /*
1091 * Workaround: Disable padding in Kumeran interface in the MAC
1092 * and in the PHY to avoid CRC errors.
1093 */
1094 ret_val = e1e_rphy(hw, GG82563_PHY_INBAND_CTRL, &data);
1095 if (ret_val)
1096 return ret_val;
1097
1098 data |= GG82563_ICR_DIS_PADDING;
1099 ret_val = e1e_wphy(hw, GG82563_PHY_INBAND_CTRL, data);
1100 if (ret_val)
1101 return ret_val;
1102
1103 return 0;
1104}
1105
1106/**
1107 * e1000_setup_copper_link_80003es2lan - Setup Copper Link for ESB2
1108 * @hw: pointer to the HW structure
1109 *
1110 * Essentially a wrapper for setting up all things "copper" related.
1111 * This is a function pointer entry point called by the mac module.
1112 **/
1113static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw)
1114{
1115 u32 ctrl;
1116 s32 ret_val;
1117 u16 reg_data;
1118
1119 ctrl = er32(CTRL);
1120 ctrl |= E1000_CTRL_SLU;
1121 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1122 ew32(CTRL, ctrl);
1123
1124 /*
1125 * Set the mac to wait the maximum time between each
1126 * iteration and increase the max iterations when
1127 * polling the phy; this fixes erroneous timeouts at 10Mbps.
1128 */
1129 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 4),
1130 0xFFFF);
1131 if (ret_val)
1132 return ret_val;
1133 ret_val = e1000_read_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
1134 ®_data);
1135 if (ret_val)
1136 return ret_val;
1137 reg_data |= 0x3F;
1138 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
1139 reg_data);
1140 if (ret_val)
1141 return ret_val;
1142 ret_val = e1000_read_kmrn_reg_80003es2lan(hw,
1143 E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
1144 ®_data);
1145 if (ret_val)
1146 return ret_val;
1147 reg_data |= E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING;
1148 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1149 E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
1150 reg_data);
1151 if (ret_val)
1152 return ret_val;
1153
1154 ret_val = e1000_copper_link_setup_gg82563_80003es2lan(hw);
1155 if (ret_val)
1156 return ret_val;
1157
1158 return e1000e_setup_copper_link(hw);
1159}
1160
1161/**
1162 * e1000_cfg_on_link_up_80003es2lan - es2 link configuration after link-up
1163 * @hw: pointer to the HW structure
1164 * @duplex: current duplex setting
1165 *
1166 * Configure the KMRN interface by applying last minute quirks for
1167 * 10/100 operation.
1168 **/
1169static s32 e1000_cfg_on_link_up_80003es2lan(struct e1000_hw *hw)
1170{
1171 s32 ret_val = 0;
1172 u16 speed;
1173 u16 duplex;
1174
1175 if (hw->phy.media_type == e1000_media_type_copper) {
1176 ret_val = e1000e_get_speed_and_duplex_copper(hw, &speed,
1177 &duplex);
1178 if (ret_val)
1179 return ret_val;
1180
1181 if (speed == SPEED_1000)
1182 ret_val = e1000_cfg_kmrn_1000_80003es2lan(hw);
1183 else
1184 ret_val = e1000_cfg_kmrn_10_100_80003es2lan(hw, duplex);
1185 }
1186
1187 return ret_val;
1188}
1189
1190/**
1191 * e1000_cfg_kmrn_10_100_80003es2lan - Apply "quirks" for 10/100 operation
1192 * @hw: pointer to the HW structure
1193 * @duplex: current duplex setting
1194 *
1195 * Configure the KMRN interface by applying last minute quirks for
1196 * 10/100 operation.
1197 **/
1198static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex)
1199{
1200 s32 ret_val;
1201 u32 tipg;
1202 u32 i = 0;
1203 u16 reg_data, reg_data2;
1204
1205 reg_data = E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT;
1206 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1207 E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
1208 reg_data);
1209 if (ret_val)
1210 return ret_val;
1211
1212 /* Configure Transmit Inter-Packet Gap */
1213 tipg = er32(TIPG);
1214 tipg &= ~E1000_TIPG_IPGT_MASK;
1215 tipg |= DEFAULT_TIPG_IPGT_10_100_80003ES2LAN;
1216 ew32(TIPG, tipg);
1217
1218 do {
1219 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data);
1220 if (ret_val)
1221 return ret_val;
1222
1223 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data2);
1224 if (ret_val)
1225 return ret_val;
1226 i++;
1227 } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
1228
1229 if (duplex == HALF_DUPLEX)
1230 reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER;
1231 else
1232 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1233
1234 return e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
1235}
1236
1237/**
1238 * e1000_cfg_kmrn_1000_80003es2lan - Apply "quirks" for gigabit operation
1239 * @hw: pointer to the HW structure
1240 *
1241 * Configure the KMRN interface by applying last minute quirks for
1242 * gigabit operation.
1243 **/
1244static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw)
1245{
1246 s32 ret_val;
1247 u16 reg_data, reg_data2;
1248 u32 tipg;
1249 u32 i = 0;
1250
1251 reg_data = E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT;
1252 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1253 E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
1254 reg_data);
1255 if (ret_val)
1256 return ret_val;
1257
1258 /* Configure Transmit Inter-Packet Gap */
1259 tipg = er32(TIPG);
1260 tipg &= ~E1000_TIPG_IPGT_MASK;
1261 tipg |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
1262 ew32(TIPG, tipg);
1263
1264 do {
1265 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data);
1266 if (ret_val)
1267 return ret_val;
1268
1269 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data2);
1270 if (ret_val)
1271 return ret_val;
1272 i++;
1273 } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
1274
1275 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1276
1277 return e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
1278}
1279
1280/**
1281 * e1000_read_kmrn_reg_80003es2lan - Read kumeran register
1282 * @hw: pointer to the HW structure
1283 * @offset: register offset to be read
1284 * @data: pointer to the read data
1285 *
1286 * Acquire semaphore, then read the PHY register at offset
1287 * using the kumeran interface. The information retrieved is stored in data.
1288 * Release the semaphore before exiting.
1289 **/
1290static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
1291 u16 *data)
1292{
1293 u32 kmrnctrlsta;
1294 s32 ret_val = 0;
1295
1296 ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
1297 if (ret_val)
1298 return ret_val;
1299
1300 kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
1301 E1000_KMRNCTRLSTA_OFFSET) | E1000_KMRNCTRLSTA_REN;
1302 ew32(KMRNCTRLSTA, kmrnctrlsta);
1303 e1e_flush();
1304
1305 udelay(2);
1306
1307 kmrnctrlsta = er32(KMRNCTRLSTA);
1308 *data = (u16)kmrnctrlsta;
1309
1310 e1000_release_mac_csr_80003es2lan(hw);
1311
1312 return ret_val;
1313}
1314
1315/**
1316 * e1000_write_kmrn_reg_80003es2lan - Write kumeran register
1317 * @hw: pointer to the HW structure
1318 * @offset: register offset to write to
1319 * @data: data to write at register offset
1320 *
1321 * Acquire semaphore, then write the data to PHY register
1322 * at the offset using the kumeran interface. Release semaphore
1323 * before exiting.
1324 **/
1325static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
1326 u16 data)
1327{
1328 u32 kmrnctrlsta;
1329 s32 ret_val = 0;
1330
1331 ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
1332 if (ret_val)
1333 return ret_val;
1334
1335 kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
1336 E1000_KMRNCTRLSTA_OFFSET) | data;
1337 ew32(KMRNCTRLSTA, kmrnctrlsta);
1338 e1e_flush();
1339
1340 udelay(2);
1341
1342 e1000_release_mac_csr_80003es2lan(hw);
1343
1344 return ret_val;
1345}
1346
1347/**
1348 * e1000_read_mac_addr_80003es2lan - Read device MAC address
1349 * @hw: pointer to the HW structure
1350 **/
1351static s32 e1000_read_mac_addr_80003es2lan(struct e1000_hw *hw)
1352{
1353 s32 ret_val = 0;
1354
1355 /*
1356 * If there's an alternate MAC address place it in RAR0
1357 * so that it will override the Si installed default perm
1358 * address.
1359 */
1360 ret_val = e1000_check_alt_mac_addr_generic(hw);
1361 if (ret_val)
1362 return ret_val;
1363
1364 return e1000_read_mac_addr_generic(hw);
1365}
1366
1367/**
1368 * e1000_power_down_phy_copper_80003es2lan - Remove link during PHY power down
1369 * @hw: pointer to the HW structure
1370 *
1371 * In the case of a PHY power down to save power, or to turn off link during a
1372 * driver unload, or wake on lan is not enabled, remove the link.
1373 **/
1374static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw)
1375{
1376 /* If the management interface is not enabled, then power down */
1377 if (!(hw->mac.ops.check_mng_mode(hw) ||
1378 hw->phy.ops.check_reset_block(hw)))
1379 e1000_power_down_phy_copper(hw);
1380}
1381
1382/**
1383 * e1000_clear_hw_cntrs_80003es2lan - Clear device specific hardware counters
1384 * @hw: pointer to the HW structure
1385 *
1386 * Clears the hardware counters by reading the counter registers.
1387 **/
1388static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw)
1389{
1390 e1000e_clear_hw_cntrs_base(hw);
1391
1392 er32(PRC64);
1393 er32(PRC127);
1394 er32(PRC255);
1395 er32(PRC511);
1396 er32(PRC1023);
1397 er32(PRC1522);
1398 er32(PTC64);
1399 er32(PTC127);
1400 er32(PTC255);
1401 er32(PTC511);
1402 er32(PTC1023);
1403 er32(PTC1522);
1404
1405 er32(ALGNERRC);
1406 er32(RXERRC);
1407 er32(TNCRS);
1408 er32(CEXTERR);
1409 er32(TSCTC);
1410 er32(TSCTFC);
1411
1412 er32(MGTPRC);
1413 er32(MGTPDC);
1414 er32(MGTPTC);
1415
1416 er32(IAC);
1417 er32(ICRXOC);
1418
1419 er32(ICRXPTC);
1420 er32(ICRXATC);
1421 er32(ICTXPTC);
1422 er32(ICTXATC);
1423 er32(ICTXQEC);
1424 er32(ICTXQMTC);
1425 er32(ICRXDMTC);
1426}
1427
1428static const struct e1000_mac_operations es2_mac_ops = {
1429 .read_mac_addr = e1000_read_mac_addr_80003es2lan,
1430 .id_led_init = e1000e_id_led_init_generic,
1431 .blink_led = e1000e_blink_led_generic,
1432 .check_mng_mode = e1000e_check_mng_mode_generic,
1433 /* check_for_link dependent on media type */
1434 .cleanup_led = e1000e_cleanup_led_generic,
1435 .clear_hw_cntrs = e1000_clear_hw_cntrs_80003es2lan,
1436 .get_bus_info = e1000e_get_bus_info_pcie,
1437 .set_lan_id = e1000_set_lan_id_multi_port_pcie,
1438 .get_link_up_info = e1000_get_link_up_info_80003es2lan,
1439 .led_on = e1000e_led_on_generic,
1440 .led_off = e1000e_led_off_generic,
1441 .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
1442 .write_vfta = e1000_write_vfta_generic,
1443 .clear_vfta = e1000_clear_vfta_generic,
1444 .reset_hw = e1000_reset_hw_80003es2lan,
1445 .init_hw = e1000_init_hw_80003es2lan,
1446 .setup_link = e1000e_setup_link_generic,
1447 /* setup_physical_interface dependent on media type */
1448 .setup_led = e1000e_setup_led_generic,
1449 .config_collision_dist = e1000e_config_collision_dist_generic,
1450 .rar_set = e1000e_rar_set_generic,
1451};
1452
1453static const struct e1000_phy_operations es2_phy_ops = {
1454 .acquire = e1000_acquire_phy_80003es2lan,
1455 .check_polarity = e1000_check_polarity_m88,
1456 .check_reset_block = e1000e_check_reset_block_generic,
1457 .commit = e1000e_phy_sw_reset,
1458 .force_speed_duplex = e1000_phy_force_speed_duplex_80003es2lan,
1459 .get_cfg_done = e1000_get_cfg_done_80003es2lan,
1460 .get_cable_length = e1000_get_cable_length_80003es2lan,
1461 .get_info = e1000e_get_phy_info_m88,
1462 .read_reg = e1000_read_phy_reg_gg82563_80003es2lan,
1463 .release = e1000_release_phy_80003es2lan,
1464 .reset = e1000e_phy_hw_reset_generic,
1465 .set_d0_lplu_state = NULL,
1466 .set_d3_lplu_state = e1000e_set_d3_lplu_state,
1467 .write_reg = e1000_write_phy_reg_gg82563_80003es2lan,
1468 .cfg_on_link_up = e1000_cfg_on_link_up_80003es2lan,
1469};
1470
1471static const struct e1000_nvm_operations es2_nvm_ops = {
1472 .acquire = e1000_acquire_nvm_80003es2lan,
1473 .read = e1000e_read_nvm_eerd,
1474 .release = e1000_release_nvm_80003es2lan,
1475 .reload = e1000e_reload_nvm_generic,
1476 .update = e1000e_update_nvm_checksum_generic,
1477 .valid_led_default = e1000e_valid_led_default,
1478 .validate = e1000e_validate_nvm_checksum_generic,
1479 .write = e1000_write_nvm_80003es2lan,
1480};
1481
1482const struct e1000_info e1000_es2_info = {
1483 .mac = e1000_80003es2lan,
1484 .flags = FLAG_HAS_HW_VLAN_FILTER
1485 | FLAG_HAS_JUMBO_FRAMES
1486 | FLAG_HAS_WOL
1487 | FLAG_APME_IN_CTRL3
1488 | FLAG_HAS_CTRLEXT_ON_LOAD
1489 | FLAG_RX_NEEDS_RESTART /* errata */
1490 | FLAG_TARC_SET_BIT_ZERO /* errata */
1491 | FLAG_APME_CHECK_PORT_B
1492 | FLAG_DISABLE_FC_PAUSE_TIME, /* errata */
1493 .flags2 = FLAG2_DMA_BURST,
1494 .pba = 38,
1495 .max_hw_frame_size = DEFAULT_JUMBO,
1496 .get_variants = e1000_get_variants_80003es2lan,
1497 .mac_ops = &es2_mac_ops,
1498 .phy_ops = &es2_phy_ops,
1499 .nvm_ops = &es2_nvm_ops,
1500};
1501