Loading...
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/* Intel PRO/1000 Linux driver
2 * Copyright(c) 1999 - 2015 Intel Corporation.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * The full GNU General Public License is included in this distribution in
14 * the file called "COPYING".
15 *
16 * Contact Information:
17 * Linux NICS <linux.nics@intel.com>
18 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
19 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
20 */
21
22/* 80003ES2LAN Gigabit Ethernet Controller (Copper)
23 * 80003ES2LAN Gigabit Ethernet Controller (Serdes)
24 */
25
26#include "e1000.h"
27
28/* A table for the GG82563 cable length where the range is defined
29 * with a lower bound at "index" and the upper bound at
30 * "index + 5".
31 */
32static const u16 e1000_gg82563_cable_length_table[] = {
33 0, 60, 115, 150, 150, 60, 115, 150, 180, 180, 0xFF
34};
35
36#define GG82563_CABLE_LENGTH_TABLE_SIZE \
37 ARRAY_SIZE(e1000_gg82563_cable_length_table)
38
39static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw);
40static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
41static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
42static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw);
43static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw);
44static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw);
45static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex);
46static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
47 u16 *data);
48static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
49 u16 data);
50static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw);
51
52/**
53 * e1000_init_phy_params_80003es2lan - Init ESB2 PHY func ptrs.
54 * @hw: pointer to the HW structure
55 **/
56static s32 e1000_init_phy_params_80003es2lan(struct e1000_hw *hw)
57{
58 struct e1000_phy_info *phy = &hw->phy;
59 s32 ret_val;
60
61 if (hw->phy.media_type != e1000_media_type_copper) {
62 phy->type = e1000_phy_none;
63 return 0;
64 } else {
65 phy->ops.power_up = e1000_power_up_phy_copper;
66 phy->ops.power_down = e1000_power_down_phy_copper_80003es2lan;
67 }
68
69 phy->addr = 1;
70 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
71 phy->reset_delay_us = 100;
72 phy->type = e1000_phy_gg82563;
73
74 /* This can only be done after all function pointers are setup. */
75 ret_val = e1000e_get_phy_id(hw);
76
77 /* Verify phy id */
78 if (phy->id != GG82563_E_PHY_ID)
79 return -E1000_ERR_PHY;
80
81 return ret_val;
82}
83
84/**
85 * e1000_init_nvm_params_80003es2lan - Init ESB2 NVM func ptrs.
86 * @hw: pointer to the HW structure
87 **/
88static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw)
89{
90 struct e1000_nvm_info *nvm = &hw->nvm;
91 u32 eecd = er32(EECD);
92 u16 size;
93
94 nvm->opcode_bits = 8;
95 nvm->delay_usec = 1;
96 switch (nvm->override) {
97 case e1000_nvm_override_spi_large:
98 nvm->page_size = 32;
99 nvm->address_bits = 16;
100 break;
101 case e1000_nvm_override_spi_small:
102 nvm->page_size = 8;
103 nvm->address_bits = 8;
104 break;
105 default:
106 nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
107 nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
108 break;
109 }
110
111 nvm->type = e1000_nvm_eeprom_spi;
112
113 size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
114 E1000_EECD_SIZE_EX_SHIFT);
115
116 /* Added to a constant, "size" becomes the left-shift value
117 * for setting word_size.
118 */
119 size += NVM_WORD_SIZE_BASE_SHIFT;
120
121 /* EEPROM access above 16k is unsupported */
122 if (size > 14)
123 size = 14;
124 nvm->word_size = 1 << size;
125
126 return 0;
127}
128
129/**
130 * e1000_init_mac_params_80003es2lan - Init ESB2 MAC func ptrs.
131 * @hw: pointer to the HW structure
132 **/
133static s32 e1000_init_mac_params_80003es2lan(struct e1000_hw *hw)
134{
135 struct e1000_mac_info *mac = &hw->mac;
136
137 /* Set media type and media-dependent function pointers */
138 switch (hw->adapter->pdev->device) {
139 case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
140 hw->phy.media_type = e1000_media_type_internal_serdes;
141 mac->ops.check_for_link = e1000e_check_for_serdes_link;
142 mac->ops.setup_physical_interface =
143 e1000e_setup_fiber_serdes_link;
144 break;
145 default:
146 hw->phy.media_type = e1000_media_type_copper;
147 mac->ops.check_for_link = e1000e_check_for_copper_link;
148 mac->ops.setup_physical_interface =
149 e1000_setup_copper_link_80003es2lan;
150 break;
151 }
152
153 /* Set mta register count */
154 mac->mta_reg_count = 128;
155 /* Set rar entry count */
156 mac->rar_entry_count = E1000_RAR_ENTRIES;
157 /* FWSM register */
158 mac->has_fwsm = true;
159 /* ARC supported; valid only if manageability features are enabled. */
160 mac->arc_subsystem_valid = !!(er32(FWSM) & E1000_FWSM_MODE_MASK);
161 /* Adaptive IFS not supported */
162 mac->adaptive_ifs = false;
163
164 /* set lan id for port to determine which phy lock to use */
165 hw->mac.ops.set_lan_id(hw);
166
167 return 0;
168}
169
170static s32 e1000_get_variants_80003es2lan(struct e1000_adapter *adapter)
171{
172 struct e1000_hw *hw = &adapter->hw;
173 s32 rc;
174
175 rc = e1000_init_mac_params_80003es2lan(hw);
176 if (rc)
177 return rc;
178
179 rc = e1000_init_nvm_params_80003es2lan(hw);
180 if (rc)
181 return rc;
182
183 rc = e1000_init_phy_params_80003es2lan(hw);
184 if (rc)
185 return rc;
186
187 return 0;
188}
189
190/**
191 * e1000_acquire_phy_80003es2lan - Acquire rights to access PHY
192 * @hw: pointer to the HW structure
193 *
194 * A wrapper to acquire access rights to the correct PHY.
195 **/
196static s32 e1000_acquire_phy_80003es2lan(struct e1000_hw *hw)
197{
198 u16 mask;
199
200 mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
201 return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
202}
203
204/**
205 * e1000_release_phy_80003es2lan - Release rights to access PHY
206 * @hw: pointer to the HW structure
207 *
208 * A wrapper to release access rights to the correct PHY.
209 **/
210static void e1000_release_phy_80003es2lan(struct e1000_hw *hw)
211{
212 u16 mask;
213
214 mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
215 e1000_release_swfw_sync_80003es2lan(hw, mask);
216}
217
218/**
219 * e1000_acquire_mac_csr_80003es2lan - Acquire right to access Kumeran register
220 * @hw: pointer to the HW structure
221 *
222 * Acquire the semaphore to access the Kumeran interface.
223 *
224 **/
225static s32 e1000_acquire_mac_csr_80003es2lan(struct e1000_hw *hw)
226{
227 u16 mask;
228
229 mask = E1000_SWFW_CSR_SM;
230
231 return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
232}
233
234/**
235 * e1000_release_mac_csr_80003es2lan - Release right to access Kumeran Register
236 * @hw: pointer to the HW structure
237 *
238 * Release the semaphore used to access the Kumeran interface
239 **/
240static void e1000_release_mac_csr_80003es2lan(struct e1000_hw *hw)
241{
242 u16 mask;
243
244 mask = E1000_SWFW_CSR_SM;
245
246 e1000_release_swfw_sync_80003es2lan(hw, mask);
247}
248
249/**
250 * e1000_acquire_nvm_80003es2lan - Acquire rights to access NVM
251 * @hw: pointer to the HW structure
252 *
253 * Acquire the semaphore to access the EEPROM.
254 **/
255static s32 e1000_acquire_nvm_80003es2lan(struct e1000_hw *hw)
256{
257 s32 ret_val;
258
259 ret_val = e1000_acquire_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
260 if (ret_val)
261 return ret_val;
262
263 ret_val = e1000e_acquire_nvm(hw);
264
265 if (ret_val)
266 e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
267
268 return ret_val;
269}
270
271/**
272 * e1000_release_nvm_80003es2lan - Relinquish rights to access NVM
273 * @hw: pointer to the HW structure
274 *
275 * Release the semaphore used to access the EEPROM.
276 **/
277static void e1000_release_nvm_80003es2lan(struct e1000_hw *hw)
278{
279 e1000e_release_nvm(hw);
280 e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
281}
282
283/**
284 * e1000_acquire_swfw_sync_80003es2lan - Acquire SW/FW semaphore
285 * @hw: pointer to the HW structure
286 * @mask: specifies which semaphore to acquire
287 *
288 * Acquire the SW/FW semaphore to access the PHY or NVM. The mask
289 * will also specify which port we're acquiring the lock for.
290 **/
291static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
292{
293 u32 swfw_sync;
294 u32 swmask = mask;
295 u32 fwmask = mask << 16;
296 s32 i = 0;
297 s32 timeout = 50;
298
299 while (i < timeout) {
300 if (e1000e_get_hw_semaphore(hw))
301 return -E1000_ERR_SWFW_SYNC;
302
303 swfw_sync = er32(SW_FW_SYNC);
304 if (!(swfw_sync & (fwmask | swmask)))
305 break;
306
307 /* Firmware currently using resource (fwmask)
308 * or other software thread using resource (swmask)
309 */
310 e1000e_put_hw_semaphore(hw);
311 mdelay(5);
312 i++;
313 }
314
315 if (i == timeout) {
316 e_dbg("Driver can't access resource, SW_FW_SYNC timeout.\n");
317 return -E1000_ERR_SWFW_SYNC;
318 }
319
320 swfw_sync |= swmask;
321 ew32(SW_FW_SYNC, swfw_sync);
322
323 e1000e_put_hw_semaphore(hw);
324
325 return 0;
326}
327
328/**
329 * e1000_release_swfw_sync_80003es2lan - Release SW/FW semaphore
330 * @hw: pointer to the HW structure
331 * @mask: specifies which semaphore to acquire
332 *
333 * Release the SW/FW semaphore used to access the PHY or NVM. The mask
334 * will also specify which port we're releasing the lock for.
335 **/
336static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
337{
338 u32 swfw_sync;
339
340 while (e1000e_get_hw_semaphore(hw) != 0)
341 ; /* Empty */
342
343 swfw_sync = er32(SW_FW_SYNC);
344 swfw_sync &= ~mask;
345 ew32(SW_FW_SYNC, swfw_sync);
346
347 e1000e_put_hw_semaphore(hw);
348}
349
350/**
351 * e1000_read_phy_reg_gg82563_80003es2lan - Read GG82563 PHY register
352 * @hw: pointer to the HW structure
353 * @offset: offset of the register to read
354 * @data: pointer to the data returned from the operation
355 *
356 * Read the GG82563 PHY register.
357 **/
358static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
359 u32 offset, u16 *data)
360{
361 s32 ret_val;
362 u32 page_select;
363 u16 temp;
364
365 ret_val = e1000_acquire_phy_80003es2lan(hw);
366 if (ret_val)
367 return ret_val;
368
369 /* Select Configuration Page */
370 if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
371 page_select = GG82563_PHY_PAGE_SELECT;
372 } else {
373 /* Use Alternative Page Select register to access
374 * registers 30 and 31
375 */
376 page_select = GG82563_PHY_PAGE_SELECT_ALT;
377 }
378
379 temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
380 ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
381 if (ret_val) {
382 e1000_release_phy_80003es2lan(hw);
383 return ret_val;
384 }
385
386 if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
387 /* The "ready" bit in the MDIC register may be incorrectly set
388 * before the device has completed the "Page Select" MDI
389 * transaction. So we wait 200us after each MDI command...
390 */
391 usleep_range(200, 400);
392
393 /* ...and verify the command was successful. */
394 ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
395
396 if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
397 e1000_release_phy_80003es2lan(hw);
398 return -E1000_ERR_PHY;
399 }
400
401 usleep_range(200, 400);
402
403 ret_val = e1000e_read_phy_reg_mdic(hw,
404 MAX_PHY_REG_ADDRESS & offset,
405 data);
406
407 usleep_range(200, 400);
408 } else {
409 ret_val = e1000e_read_phy_reg_mdic(hw,
410 MAX_PHY_REG_ADDRESS & offset,
411 data);
412 }
413
414 e1000_release_phy_80003es2lan(hw);
415
416 return ret_val;
417}
418
419/**
420 * e1000_write_phy_reg_gg82563_80003es2lan - Write GG82563 PHY register
421 * @hw: pointer to the HW structure
422 * @offset: offset of the register to read
423 * @data: value to write to the register
424 *
425 * Write to the GG82563 PHY register.
426 **/
427static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
428 u32 offset, u16 data)
429{
430 s32 ret_val;
431 u32 page_select;
432 u16 temp;
433
434 ret_val = e1000_acquire_phy_80003es2lan(hw);
435 if (ret_val)
436 return ret_val;
437
438 /* Select Configuration Page */
439 if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
440 page_select = GG82563_PHY_PAGE_SELECT;
441 } else {
442 /* Use Alternative Page Select register to access
443 * registers 30 and 31
444 */
445 page_select = GG82563_PHY_PAGE_SELECT_ALT;
446 }
447
448 temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
449 ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
450 if (ret_val) {
451 e1000_release_phy_80003es2lan(hw);
452 return ret_val;
453 }
454
455 if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
456 /* The "ready" bit in the MDIC register may be incorrectly set
457 * before the device has completed the "Page Select" MDI
458 * transaction. So we wait 200us after each MDI command...
459 */
460 usleep_range(200, 400);
461
462 /* ...and verify the command was successful. */
463 ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
464
465 if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
466 e1000_release_phy_80003es2lan(hw);
467 return -E1000_ERR_PHY;
468 }
469
470 usleep_range(200, 400);
471
472 ret_val = e1000e_write_phy_reg_mdic(hw,
473 MAX_PHY_REG_ADDRESS &
474 offset, data);
475
476 usleep_range(200, 400);
477 } else {
478 ret_val = e1000e_write_phy_reg_mdic(hw,
479 MAX_PHY_REG_ADDRESS &
480 offset, data);
481 }
482
483 e1000_release_phy_80003es2lan(hw);
484
485 return ret_val;
486}
487
488/**
489 * e1000_write_nvm_80003es2lan - Write to ESB2 NVM
490 * @hw: pointer to the HW structure
491 * @offset: offset of the register to read
492 * @words: number of words to write
493 * @data: buffer of data to write to the NVM
494 *
495 * Write "words" of data to the ESB2 NVM.
496 **/
497static s32 e1000_write_nvm_80003es2lan(struct e1000_hw *hw, u16 offset,
498 u16 words, u16 *data)
499{
500 return e1000e_write_nvm_spi(hw, offset, words, data);
501}
502
503/**
504 * e1000_get_cfg_done_80003es2lan - Wait for configuration to complete
505 * @hw: pointer to the HW structure
506 *
507 * Wait a specific amount of time for manageability processes to complete.
508 * This is a function pointer entry point called by the phy module.
509 **/
510static s32 e1000_get_cfg_done_80003es2lan(struct e1000_hw *hw)
511{
512 s32 timeout = PHY_CFG_TIMEOUT;
513 u32 mask = E1000_NVM_CFG_DONE_PORT_0;
514
515 if (hw->bus.func == 1)
516 mask = E1000_NVM_CFG_DONE_PORT_1;
517
518 while (timeout) {
519 if (er32(EEMNGCTL) & mask)
520 break;
521 usleep_range(1000, 2000);
522 timeout--;
523 }
524 if (!timeout) {
525 e_dbg("MNG configuration cycle has not completed.\n");
526 return -E1000_ERR_RESET;
527 }
528
529 return 0;
530}
531
532/**
533 * e1000_phy_force_speed_duplex_80003es2lan - Force PHY speed and duplex
534 * @hw: pointer to the HW structure
535 *
536 * Force the speed and duplex settings onto the PHY. This is a
537 * function pointer entry point called by the phy module.
538 **/
539static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw)
540{
541 s32 ret_val;
542 u16 phy_data;
543 bool link;
544
545 /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI
546 * forced whenever speed and duplex are forced.
547 */
548 ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
549 if (ret_val)
550 return ret_val;
551
552 phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_AUTO;
553 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, phy_data);
554 if (ret_val)
555 return ret_val;
556
557 e_dbg("GG82563 PSCR: %X\n", phy_data);
558
559 ret_val = e1e_rphy(hw, MII_BMCR, &phy_data);
560 if (ret_val)
561 return ret_val;
562
563 e1000e_phy_force_speed_duplex_setup(hw, &phy_data);
564
565 /* Reset the phy to commit changes. */
566 phy_data |= BMCR_RESET;
567
568 ret_val = e1e_wphy(hw, MII_BMCR, phy_data);
569 if (ret_val)
570 return ret_val;
571
572 udelay(1);
573
574 if (hw->phy.autoneg_wait_to_complete) {
575 e_dbg("Waiting for forced speed/duplex link on GG82563 phy.\n");
576
577 ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
578 100000, &link);
579 if (ret_val)
580 return ret_val;
581
582 if (!link) {
583 /* We didn't get link.
584 * Reset the DSP and cross our fingers.
585 */
586 ret_val = e1000e_phy_reset_dsp(hw);
587 if (ret_val)
588 return ret_val;
589 }
590
591 /* Try once more */
592 ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
593 100000, &link);
594 if (ret_val)
595 return ret_val;
596 }
597
598 ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data);
599 if (ret_val)
600 return ret_val;
601
602 /* Resetting the phy means we need to verify the TX_CLK corresponds
603 * to the link speed. 10Mbps -> 2.5MHz, else 25MHz.
604 */
605 phy_data &= ~GG82563_MSCR_TX_CLK_MASK;
606 if (hw->mac.forced_speed_duplex & E1000_ALL_10_SPEED)
607 phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5;
608 else
609 phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25;
610
611 /* In addition, we must re-enable CRS on Tx for both half and full
612 * duplex.
613 */
614 phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
615 ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data);
616
617 return ret_val;
618}
619
620/**
621 * e1000_get_cable_length_80003es2lan - Set approximate cable length
622 * @hw: pointer to the HW structure
623 *
624 * Find the approximate cable length as measured by the GG82563 PHY.
625 * This is a function pointer entry point called by the phy module.
626 **/
627static s32 e1000_get_cable_length_80003es2lan(struct e1000_hw *hw)
628{
629 struct e1000_phy_info *phy = &hw->phy;
630 s32 ret_val;
631 u16 phy_data, index;
632
633 ret_val = e1e_rphy(hw, GG82563_PHY_DSP_DISTANCE, &phy_data);
634 if (ret_val)
635 return ret_val;
636
637 index = phy_data & GG82563_DSPD_CABLE_LENGTH;
638
639 if (index >= GG82563_CABLE_LENGTH_TABLE_SIZE - 5)
640 return -E1000_ERR_PHY;
641
642 phy->min_cable_length = e1000_gg82563_cable_length_table[index];
643 phy->max_cable_length = e1000_gg82563_cable_length_table[index + 5];
644
645 phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;
646
647 return 0;
648}
649
650/**
651 * e1000_get_link_up_info_80003es2lan - Report speed and duplex
652 * @hw: pointer to the HW structure
653 * @speed: pointer to speed buffer
654 * @duplex: pointer to duplex buffer
655 *
656 * Retrieve the current speed and duplex configuration.
657 **/
658static s32 e1000_get_link_up_info_80003es2lan(struct e1000_hw *hw, u16 *speed,
659 u16 *duplex)
660{
661 s32 ret_val;
662
663 if (hw->phy.media_type == e1000_media_type_copper) {
664 ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex);
665 hw->phy.ops.cfg_on_link_up(hw);
666 } else {
667 ret_val = e1000e_get_speed_and_duplex_fiber_serdes(hw,
668 speed,
669 duplex);
670 }
671
672 return ret_val;
673}
674
675/**
676 * e1000_reset_hw_80003es2lan - Reset the ESB2 controller
677 * @hw: pointer to the HW structure
678 *
679 * Perform a global reset to the ESB2 controller.
680 **/
681static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw)
682{
683 u32 ctrl;
684 s32 ret_val;
685 u16 kum_reg_data;
686
687 /* Prevent the PCI-E bus from sticking if there is no TLP connection
688 * on the last TLP read/write transaction when MAC is reset.
689 */
690 ret_val = e1000e_disable_pcie_master(hw);
691 if (ret_val)
692 e_dbg("PCI-E Master disable polling has failed.\n");
693
694 e_dbg("Masking off all interrupts\n");
695 ew32(IMC, 0xffffffff);
696
697 ew32(RCTL, 0);
698 ew32(TCTL, E1000_TCTL_PSP);
699 e1e_flush();
700
701 usleep_range(10000, 20000);
702
703 ctrl = er32(CTRL);
704
705 ret_val = e1000_acquire_phy_80003es2lan(hw);
706 if (ret_val)
707 return ret_val;
708
709 e_dbg("Issuing a global reset to MAC\n");
710 ew32(CTRL, ctrl | E1000_CTRL_RST);
711 e1000_release_phy_80003es2lan(hw);
712
713 /* Disable IBIST slave mode (far-end loopback) */
714 ret_val =
715 e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
716 &kum_reg_data);
717 if (ret_val)
718 return ret_val;
719 kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
720 e1000_write_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
721 kum_reg_data);
722
723 ret_val = e1000e_get_auto_rd_done(hw);
724 if (ret_val)
725 /* We don't want to continue accessing MAC registers. */
726 return ret_val;
727
728 /* Clear any pending interrupt events. */
729 ew32(IMC, 0xffffffff);
730 er32(ICR);
731
732 return e1000_check_alt_mac_addr_generic(hw);
733}
734
735/**
736 * e1000_init_hw_80003es2lan - Initialize the ESB2 controller
737 * @hw: pointer to the HW structure
738 *
739 * Initialize the hw bits, LED, VFTA, MTA, link and hw counters.
740 **/
741static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw)
742{
743 struct e1000_mac_info *mac = &hw->mac;
744 u32 reg_data;
745 s32 ret_val;
746 u16 kum_reg_data;
747 u16 i;
748
749 e1000_initialize_hw_bits_80003es2lan(hw);
750
751 /* Initialize identification LED */
752 ret_val = mac->ops.id_led_init(hw);
753 /* An error is not fatal and we should not stop init due to this */
754 if (ret_val)
755 e_dbg("Error initializing identification LED\n");
756
757 /* Disabling VLAN filtering */
758 e_dbg("Initializing the IEEE VLAN\n");
759 mac->ops.clear_vfta(hw);
760
761 /* Setup the receive address. */
762 e1000e_init_rx_addrs(hw, mac->rar_entry_count);
763
764 /* Zero out the Multicast HASH table */
765 e_dbg("Zeroing the MTA\n");
766 for (i = 0; i < mac->mta_reg_count; i++)
767 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
768
769 /* Setup link and flow control */
770 ret_val = mac->ops.setup_link(hw);
771 if (ret_val)
772 return ret_val;
773
774 /* Disable IBIST slave mode (far-end loopback) */
775 e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
776 &kum_reg_data);
777 kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
778 e1000_write_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
779 kum_reg_data);
780
781 /* Set the transmit descriptor write-back policy */
782 reg_data = er32(TXDCTL(0));
783 reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
784 E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
785 ew32(TXDCTL(0), reg_data);
786
787 /* ...for both queues. */
788 reg_data = er32(TXDCTL(1));
789 reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
790 E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
791 ew32(TXDCTL(1), reg_data);
792
793 /* Enable retransmit on late collisions */
794 reg_data = er32(TCTL);
795 reg_data |= E1000_TCTL_RTLC;
796 ew32(TCTL, reg_data);
797
798 /* Configure Gigabit Carry Extend Padding */
799 reg_data = er32(TCTL_EXT);
800 reg_data &= ~E1000_TCTL_EXT_GCEX_MASK;
801 reg_data |= DEFAULT_TCTL_EXT_GCEX_80003ES2LAN;
802 ew32(TCTL_EXT, reg_data);
803
804 /* Configure Transmit Inter-Packet Gap */
805 reg_data = er32(TIPG);
806 reg_data &= ~E1000_TIPG_IPGT_MASK;
807 reg_data |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
808 ew32(TIPG, reg_data);
809
810 reg_data = E1000_READ_REG_ARRAY(hw, E1000_FFLT, 0x0001);
811 reg_data &= ~0x00100000;
812 E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data);
813
814 /* default to true to enable the MDIC W/A */
815 hw->dev_spec.e80003es2lan.mdic_wa_enable = true;
816
817 ret_val =
818 e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_OFFSET >>
819 E1000_KMRNCTRLSTA_OFFSET_SHIFT, &i);
820 if (!ret_val) {
821 if ((i & E1000_KMRNCTRLSTA_OPMODE_MASK) ==
822 E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO)
823 hw->dev_spec.e80003es2lan.mdic_wa_enable = false;
824 }
825
826 /* Clear all of the statistics registers (clear on read). It is
827 * important that we do this after we have tried to establish link
828 * because the symbol error count will increment wildly if there
829 * is no link.
830 */
831 e1000_clear_hw_cntrs_80003es2lan(hw);
832
833 return ret_val;
834}
835
836/**
837 * e1000_initialize_hw_bits_80003es2lan - Init hw bits of ESB2
838 * @hw: pointer to the HW structure
839 *
840 * Initializes required hardware-dependent bits needed for normal operation.
841 **/
842static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw)
843{
844 u32 reg;
845
846 /* Transmit Descriptor Control 0 */
847 reg = er32(TXDCTL(0));
848 reg |= (1 << 22);
849 ew32(TXDCTL(0), reg);
850
851 /* Transmit Descriptor Control 1 */
852 reg = er32(TXDCTL(1));
853 reg |= (1 << 22);
854 ew32(TXDCTL(1), reg);
855
856 /* Transmit Arbitration Control 0 */
857 reg = er32(TARC(0));
858 reg &= ~(0xF << 27); /* 30:27 */
859 if (hw->phy.media_type != e1000_media_type_copper)
860 reg &= ~(1 << 20);
861 ew32(TARC(0), reg);
862
863 /* Transmit Arbitration Control 1 */
864 reg = er32(TARC(1));
865 if (er32(TCTL) & E1000_TCTL_MULR)
866 reg &= ~(1 << 28);
867 else
868 reg |= (1 << 28);
869 ew32(TARC(1), reg);
870
871 /* Disable IPv6 extension header parsing because some malformed
872 * IPv6 headers can hang the Rx.
873 */
874 reg = er32(RFCTL);
875 reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
876 ew32(RFCTL, reg);
877}
878
879/**
880 * e1000_copper_link_setup_gg82563_80003es2lan - Configure GG82563 Link
881 * @hw: pointer to the HW structure
882 *
883 * Setup some GG82563 PHY registers for obtaining link
884 **/
885static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
886{
887 struct e1000_phy_info *phy = &hw->phy;
888 s32 ret_val;
889 u32 reg;
890 u16 data;
891
892 ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &data);
893 if (ret_val)
894 return ret_val;
895
896 data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
897 /* Use 25MHz for both link down and 1000Base-T for Tx clock. */
898 data |= GG82563_MSCR_TX_CLK_1000MBPS_25;
899
900 ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, data);
901 if (ret_val)
902 return ret_val;
903
904 /* Options:
905 * MDI/MDI-X = 0 (default)
906 * 0 - Auto for all speeds
907 * 1 - MDI mode
908 * 2 - MDI-X mode
909 * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
910 */
911 ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL, &data);
912 if (ret_val)
913 return ret_val;
914
915 data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK;
916
917 switch (phy->mdix) {
918 case 1:
919 data |= GG82563_PSCR_CROSSOVER_MODE_MDI;
920 break;
921 case 2:
922 data |= GG82563_PSCR_CROSSOVER_MODE_MDIX;
923 break;
924 case 0:
925 default:
926 data |= GG82563_PSCR_CROSSOVER_MODE_AUTO;
927 break;
928 }
929
930 /* Options:
931 * disable_polarity_correction = 0 (default)
932 * Automatic Correction for Reversed Cable Polarity
933 * 0 - Disabled
934 * 1 - Enabled
935 */
936 data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
937 if (phy->disable_polarity_correction)
938 data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
939
940 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, data);
941 if (ret_val)
942 return ret_val;
943
944 /* SW Reset the PHY so all changes take effect */
945 ret_val = hw->phy.ops.commit(hw);
946 if (ret_val) {
947 e_dbg("Error Resetting the PHY\n");
948 return ret_val;
949 }
950
951 /* Bypass Rx and Tx FIFO's */
952 reg = E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL;
953 data = (E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS |
954 E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS);
955 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, reg, data);
956 if (ret_val)
957 return ret_val;
958
959 reg = E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE;
960 ret_val = e1000_read_kmrn_reg_80003es2lan(hw, reg, &data);
961 if (ret_val)
962 return ret_val;
963 data |= E1000_KMRNCTRLSTA_OPMODE_E_IDLE;
964 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, reg, data);
965 if (ret_val)
966 return ret_val;
967
968 ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL_2, &data);
969 if (ret_val)
970 return ret_val;
971
972 data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG;
973 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL_2, data);
974 if (ret_val)
975 return ret_val;
976
977 reg = er32(CTRL_EXT);
978 reg &= ~E1000_CTRL_EXT_LINK_MODE_MASK;
979 ew32(CTRL_EXT, reg);
980
981 ret_val = e1e_rphy(hw, GG82563_PHY_PWR_MGMT_CTRL, &data);
982 if (ret_val)
983 return ret_val;
984
985 /* Do not init these registers when the HW is in IAMT mode, since the
986 * firmware will have already initialized them. We only initialize
987 * them if the HW is not in IAMT mode.
988 */
989 if (!hw->mac.ops.check_mng_mode(hw)) {
990 /* Enable Electrical Idle on the PHY */
991 data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE;
992 ret_val = e1e_wphy(hw, GG82563_PHY_PWR_MGMT_CTRL, data);
993 if (ret_val)
994 return ret_val;
995
996 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &data);
997 if (ret_val)
998 return ret_val;
999
1000 data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1001 ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data);
1002 if (ret_val)
1003 return ret_val;
1004 }
1005
1006 /* Workaround: Disable padding in Kumeran interface in the MAC
1007 * and in the PHY to avoid CRC errors.
1008 */
1009 ret_val = e1e_rphy(hw, GG82563_PHY_INBAND_CTRL, &data);
1010 if (ret_val)
1011 return ret_val;
1012
1013 data |= GG82563_ICR_DIS_PADDING;
1014 ret_val = e1e_wphy(hw, GG82563_PHY_INBAND_CTRL, data);
1015 if (ret_val)
1016 return ret_val;
1017
1018 return 0;
1019}
1020
1021/**
1022 * e1000_setup_copper_link_80003es2lan - Setup Copper Link for ESB2
1023 * @hw: pointer to the HW structure
1024 *
1025 * Essentially a wrapper for setting up all things "copper" related.
1026 * This is a function pointer entry point called by the mac module.
1027 **/
1028static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw)
1029{
1030 u32 ctrl;
1031 s32 ret_val;
1032 u16 reg_data;
1033
1034 ctrl = er32(CTRL);
1035 ctrl |= E1000_CTRL_SLU;
1036 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1037 ew32(CTRL, ctrl);
1038
1039 /* Set the mac to wait the maximum time between each
1040 * iteration and increase the max iterations when
1041 * polling the phy; this fixes erroneous timeouts at 10Mbps.
1042 */
1043 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 4),
1044 0xFFFF);
1045 if (ret_val)
1046 return ret_val;
1047 ret_val = e1000_read_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
1048 ®_data);
1049 if (ret_val)
1050 return ret_val;
1051 reg_data |= 0x3F;
1052 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
1053 reg_data);
1054 if (ret_val)
1055 return ret_val;
1056 ret_val =
1057 e1000_read_kmrn_reg_80003es2lan(hw,
1058 E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
1059 ®_data);
1060 if (ret_val)
1061 return ret_val;
1062 reg_data |= E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING;
1063 ret_val =
1064 e1000_write_kmrn_reg_80003es2lan(hw,
1065 E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
1066 reg_data);
1067 if (ret_val)
1068 return ret_val;
1069
1070 ret_val = e1000_copper_link_setup_gg82563_80003es2lan(hw);
1071 if (ret_val)
1072 return ret_val;
1073
1074 return e1000e_setup_copper_link(hw);
1075}
1076
1077/**
1078 * e1000_cfg_on_link_up_80003es2lan - es2 link configuration after link-up
1079 * @hw: pointer to the HW structure
1080 * @duplex: current duplex setting
1081 *
1082 * Configure the KMRN interface by applying last minute quirks for
1083 * 10/100 operation.
1084 **/
1085static s32 e1000_cfg_on_link_up_80003es2lan(struct e1000_hw *hw)
1086{
1087 s32 ret_val = 0;
1088 u16 speed;
1089 u16 duplex;
1090
1091 if (hw->phy.media_type == e1000_media_type_copper) {
1092 ret_val = e1000e_get_speed_and_duplex_copper(hw, &speed,
1093 &duplex);
1094 if (ret_val)
1095 return ret_val;
1096
1097 if (speed == SPEED_1000)
1098 ret_val = e1000_cfg_kmrn_1000_80003es2lan(hw);
1099 else
1100 ret_val = e1000_cfg_kmrn_10_100_80003es2lan(hw, duplex);
1101 }
1102
1103 return ret_val;
1104}
1105
1106/**
1107 * e1000_cfg_kmrn_10_100_80003es2lan - Apply "quirks" for 10/100 operation
1108 * @hw: pointer to the HW structure
1109 * @duplex: current duplex setting
1110 *
1111 * Configure the KMRN interface by applying last minute quirks for
1112 * 10/100 operation.
1113 **/
1114static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex)
1115{
1116 s32 ret_val;
1117 u32 tipg;
1118 u32 i = 0;
1119 u16 reg_data, reg_data2;
1120
1121 reg_data = E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT;
1122 ret_val =
1123 e1000_write_kmrn_reg_80003es2lan(hw,
1124 E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
1125 reg_data);
1126 if (ret_val)
1127 return ret_val;
1128
1129 /* Configure Transmit Inter-Packet Gap */
1130 tipg = er32(TIPG);
1131 tipg &= ~E1000_TIPG_IPGT_MASK;
1132 tipg |= DEFAULT_TIPG_IPGT_10_100_80003ES2LAN;
1133 ew32(TIPG, tipg);
1134
1135 do {
1136 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data);
1137 if (ret_val)
1138 return ret_val;
1139
1140 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data2);
1141 if (ret_val)
1142 return ret_val;
1143 i++;
1144 } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
1145
1146 if (duplex == HALF_DUPLEX)
1147 reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER;
1148 else
1149 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1150
1151 return e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
1152}
1153
1154/**
1155 * e1000_cfg_kmrn_1000_80003es2lan - Apply "quirks" for gigabit operation
1156 * @hw: pointer to the HW structure
1157 *
1158 * Configure the KMRN interface by applying last minute quirks for
1159 * gigabit operation.
1160 **/
1161static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw)
1162{
1163 s32 ret_val;
1164 u16 reg_data, reg_data2;
1165 u32 tipg;
1166 u32 i = 0;
1167
1168 reg_data = E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT;
1169 ret_val =
1170 e1000_write_kmrn_reg_80003es2lan(hw,
1171 E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
1172 reg_data);
1173 if (ret_val)
1174 return ret_val;
1175
1176 /* Configure Transmit Inter-Packet Gap */
1177 tipg = er32(TIPG);
1178 tipg &= ~E1000_TIPG_IPGT_MASK;
1179 tipg |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
1180 ew32(TIPG, tipg);
1181
1182 do {
1183 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data);
1184 if (ret_val)
1185 return ret_val;
1186
1187 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data2);
1188 if (ret_val)
1189 return ret_val;
1190 i++;
1191 } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
1192
1193 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1194
1195 return e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
1196}
1197
1198/**
1199 * e1000_read_kmrn_reg_80003es2lan - Read kumeran register
1200 * @hw: pointer to the HW structure
1201 * @offset: register offset to be read
1202 * @data: pointer to the read data
1203 *
1204 * Acquire semaphore, then read the PHY register at offset
1205 * using the kumeran interface. The information retrieved is stored in data.
1206 * Release the semaphore before exiting.
1207 **/
1208static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
1209 u16 *data)
1210{
1211 u32 kmrnctrlsta;
1212 s32 ret_val;
1213
1214 ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
1215 if (ret_val)
1216 return ret_val;
1217
1218 kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
1219 E1000_KMRNCTRLSTA_OFFSET) | E1000_KMRNCTRLSTA_REN;
1220 ew32(KMRNCTRLSTA, kmrnctrlsta);
1221 e1e_flush();
1222
1223 udelay(2);
1224
1225 kmrnctrlsta = er32(KMRNCTRLSTA);
1226 *data = (u16)kmrnctrlsta;
1227
1228 e1000_release_mac_csr_80003es2lan(hw);
1229
1230 return ret_val;
1231}
1232
1233/**
1234 * e1000_write_kmrn_reg_80003es2lan - Write kumeran register
1235 * @hw: pointer to the HW structure
1236 * @offset: register offset to write to
1237 * @data: data to write at register offset
1238 *
1239 * Acquire semaphore, then write the data to PHY register
1240 * at the offset using the kumeran interface. Release semaphore
1241 * before exiting.
1242 **/
1243static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
1244 u16 data)
1245{
1246 u32 kmrnctrlsta;
1247 s32 ret_val;
1248
1249 ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
1250 if (ret_val)
1251 return ret_val;
1252
1253 kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
1254 E1000_KMRNCTRLSTA_OFFSET) | data;
1255 ew32(KMRNCTRLSTA, kmrnctrlsta);
1256 e1e_flush();
1257
1258 udelay(2);
1259
1260 e1000_release_mac_csr_80003es2lan(hw);
1261
1262 return ret_val;
1263}
1264
1265/**
1266 * e1000_read_mac_addr_80003es2lan - Read device MAC address
1267 * @hw: pointer to the HW structure
1268 **/
1269static s32 e1000_read_mac_addr_80003es2lan(struct e1000_hw *hw)
1270{
1271 s32 ret_val;
1272
1273 /* If there's an alternate MAC address place it in RAR0
1274 * so that it will override the Si installed default perm
1275 * address.
1276 */
1277 ret_val = e1000_check_alt_mac_addr_generic(hw);
1278 if (ret_val)
1279 return ret_val;
1280
1281 return e1000_read_mac_addr_generic(hw);
1282}
1283
1284/**
1285 * e1000_power_down_phy_copper_80003es2lan - Remove link during PHY power down
1286 * @hw: pointer to the HW structure
1287 *
1288 * In the case of a PHY power down to save power, or to turn off link during a
1289 * driver unload, or wake on lan is not enabled, remove the link.
1290 **/
1291static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw)
1292{
1293 /* If the management interface is not enabled, then power down */
1294 if (!(hw->mac.ops.check_mng_mode(hw) ||
1295 hw->phy.ops.check_reset_block(hw)))
1296 e1000_power_down_phy_copper(hw);
1297}
1298
1299/**
1300 * e1000_clear_hw_cntrs_80003es2lan - Clear device specific hardware counters
1301 * @hw: pointer to the HW structure
1302 *
1303 * Clears the hardware counters by reading the counter registers.
1304 **/
1305static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw)
1306{
1307 e1000e_clear_hw_cntrs_base(hw);
1308
1309 er32(PRC64);
1310 er32(PRC127);
1311 er32(PRC255);
1312 er32(PRC511);
1313 er32(PRC1023);
1314 er32(PRC1522);
1315 er32(PTC64);
1316 er32(PTC127);
1317 er32(PTC255);
1318 er32(PTC511);
1319 er32(PTC1023);
1320 er32(PTC1522);
1321
1322 er32(ALGNERRC);
1323 er32(RXERRC);
1324 er32(TNCRS);
1325 er32(CEXTERR);
1326 er32(TSCTC);
1327 er32(TSCTFC);
1328
1329 er32(MGTPRC);
1330 er32(MGTPDC);
1331 er32(MGTPTC);
1332
1333 er32(IAC);
1334 er32(ICRXOC);
1335
1336 er32(ICRXPTC);
1337 er32(ICRXATC);
1338 er32(ICTXPTC);
1339 er32(ICTXATC);
1340 er32(ICTXQEC);
1341 er32(ICTXQMTC);
1342 er32(ICRXDMTC);
1343}
1344
1345static const struct e1000_mac_operations es2_mac_ops = {
1346 .read_mac_addr = e1000_read_mac_addr_80003es2lan,
1347 .id_led_init = e1000e_id_led_init_generic,
1348 .blink_led = e1000e_blink_led_generic,
1349 .check_mng_mode = e1000e_check_mng_mode_generic,
1350 /* check_for_link dependent on media type */
1351 .cleanup_led = e1000e_cleanup_led_generic,
1352 .clear_hw_cntrs = e1000_clear_hw_cntrs_80003es2lan,
1353 .get_bus_info = e1000e_get_bus_info_pcie,
1354 .set_lan_id = e1000_set_lan_id_multi_port_pcie,
1355 .get_link_up_info = e1000_get_link_up_info_80003es2lan,
1356 .led_on = e1000e_led_on_generic,
1357 .led_off = e1000e_led_off_generic,
1358 .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
1359 .write_vfta = e1000_write_vfta_generic,
1360 .clear_vfta = e1000_clear_vfta_generic,
1361 .reset_hw = e1000_reset_hw_80003es2lan,
1362 .init_hw = e1000_init_hw_80003es2lan,
1363 .setup_link = e1000e_setup_link_generic,
1364 /* setup_physical_interface dependent on media type */
1365 .setup_led = e1000e_setup_led_generic,
1366 .config_collision_dist = e1000e_config_collision_dist_generic,
1367 .rar_set = e1000e_rar_set_generic,
1368 .rar_get_count = e1000e_rar_get_count_generic,
1369};
1370
1371static const struct e1000_phy_operations es2_phy_ops = {
1372 .acquire = e1000_acquire_phy_80003es2lan,
1373 .check_polarity = e1000_check_polarity_m88,
1374 .check_reset_block = e1000e_check_reset_block_generic,
1375 .commit = e1000e_phy_sw_reset,
1376 .force_speed_duplex = e1000_phy_force_speed_duplex_80003es2lan,
1377 .get_cfg_done = e1000_get_cfg_done_80003es2lan,
1378 .get_cable_length = e1000_get_cable_length_80003es2lan,
1379 .get_info = e1000e_get_phy_info_m88,
1380 .read_reg = e1000_read_phy_reg_gg82563_80003es2lan,
1381 .release = e1000_release_phy_80003es2lan,
1382 .reset = e1000e_phy_hw_reset_generic,
1383 .set_d0_lplu_state = NULL,
1384 .set_d3_lplu_state = e1000e_set_d3_lplu_state,
1385 .write_reg = e1000_write_phy_reg_gg82563_80003es2lan,
1386 .cfg_on_link_up = e1000_cfg_on_link_up_80003es2lan,
1387};
1388
1389static const struct e1000_nvm_operations es2_nvm_ops = {
1390 .acquire = e1000_acquire_nvm_80003es2lan,
1391 .read = e1000e_read_nvm_eerd,
1392 .release = e1000_release_nvm_80003es2lan,
1393 .reload = e1000e_reload_nvm_generic,
1394 .update = e1000e_update_nvm_checksum_generic,
1395 .valid_led_default = e1000e_valid_led_default,
1396 .validate = e1000e_validate_nvm_checksum_generic,
1397 .write = e1000_write_nvm_80003es2lan,
1398};
1399
1400const struct e1000_info e1000_es2_info = {
1401 .mac = e1000_80003es2lan,
1402 .flags = FLAG_HAS_HW_VLAN_FILTER
1403 | FLAG_HAS_JUMBO_FRAMES
1404 | FLAG_HAS_WOL
1405 | FLAG_APME_IN_CTRL3
1406 | FLAG_HAS_CTRLEXT_ON_LOAD
1407 | FLAG_RX_NEEDS_RESTART /* errata */
1408 | FLAG_TARC_SET_BIT_ZERO /* errata */
1409 | FLAG_APME_CHECK_PORT_B
1410 | FLAG_DISABLE_FC_PAUSE_TIME, /* errata */
1411 .flags2 = FLAG2_DMA_BURST,
1412 .pba = 38,
1413 .max_hw_frame_size = DEFAULT_JUMBO,
1414 .get_variants = e1000_get_variants_80003es2lan,
1415 .mac_ops = &es2_mac_ops,
1416 .phy_ops = &es2_phy_ops,
1417 .nvm_ops = &es2_nvm_ops,
1418};