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  */
14 static 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 
21 static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw);
22 static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
23 static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
24 static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw);
25 static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw);
26 static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw);
27 static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex);
28 static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
29 					   u16 *data);
30 static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
31 					    u16 data);
32 static 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  **/
38 static 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  **/
70 static 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)((eecd & E1000_EECD_SIZE_EX_MASK) >>
96 		     E1000_EECD_SIZE_EX_SHIFT);
97 
98 	/* Added to a constant, "size" becomes the left-shift value
99 	 * for setting word_size.
100 	 */
101 	size += NVM_WORD_SIZE_BASE_SHIFT;
102 
103 	/* EEPROM access above 16k is unsupported */
104 	if (size > 14)
105 		size = 14;
106 	nvm->word_size = BIT(size);
107 
108 	return 0;
109 }
110 
111 /**
112  *  e1000_init_mac_params_80003es2lan - Init ESB2 MAC func ptrs.
113  *  @hw: pointer to the HW structure
114  **/
115 static s32 e1000_init_mac_params_80003es2lan(struct e1000_hw *hw)
116 {
117 	struct e1000_mac_info *mac = &hw->mac;
118 
119 	/* Set media type and media-dependent function pointers */
120 	switch (hw->adapter->pdev->device) {
121 	case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
122 		hw->phy.media_type = e1000_media_type_internal_serdes;
123 		mac->ops.check_for_link = e1000e_check_for_serdes_link;
124 		mac->ops.setup_physical_interface =
125 		    e1000e_setup_fiber_serdes_link;
126 		break;
127 	default:
128 		hw->phy.media_type = e1000_media_type_copper;
129 		mac->ops.check_for_link = e1000e_check_for_copper_link;
130 		mac->ops.setup_physical_interface =
131 		    e1000_setup_copper_link_80003es2lan;
132 		break;
133 	}
134 
135 	/* Set mta register count */
136 	mac->mta_reg_count = 128;
137 	/* Set rar entry count */
138 	mac->rar_entry_count = E1000_RAR_ENTRIES;
139 	/* FWSM register */
140 	mac->has_fwsm = true;
141 	/* ARC supported; valid only if manageability features are enabled. */
142 	mac->arc_subsystem_valid = !!(er32(FWSM) & E1000_FWSM_MODE_MASK);
143 	/* Adaptive IFS not supported */
144 	mac->adaptive_ifs = false;
145 
146 	/* set lan id for port to determine which phy lock to use */
147 	hw->mac.ops.set_lan_id(hw);
148 
149 	return 0;
150 }
151 
152 static s32 e1000_get_variants_80003es2lan(struct e1000_adapter *adapter)
153 {
154 	struct e1000_hw *hw = &adapter->hw;
155 	s32 rc;
156 
157 	rc = e1000_init_mac_params_80003es2lan(hw);
158 	if (rc)
159 		return rc;
160 
161 	rc = e1000_init_nvm_params_80003es2lan(hw);
162 	if (rc)
163 		return rc;
164 
165 	rc = e1000_init_phy_params_80003es2lan(hw);
166 	if (rc)
167 		return rc;
168 
169 	return 0;
170 }
171 
172 /**
173  *  e1000_acquire_phy_80003es2lan - Acquire rights to access PHY
174  *  @hw: pointer to the HW structure
175  *
176  *  A wrapper to acquire access rights to the correct PHY.
177  **/
178 static s32 e1000_acquire_phy_80003es2lan(struct e1000_hw *hw)
179 {
180 	u16 mask;
181 
182 	mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
183 	return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
184 }
185 
186 /**
187  *  e1000_release_phy_80003es2lan - Release rights to access PHY
188  *  @hw: pointer to the HW structure
189  *
190  *  A wrapper to release access rights to the correct PHY.
191  **/
192 static void e1000_release_phy_80003es2lan(struct e1000_hw *hw)
193 {
194 	u16 mask;
195 
196 	mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
197 	e1000_release_swfw_sync_80003es2lan(hw, mask);
198 }
199 
200 /**
201  *  e1000_acquire_mac_csr_80003es2lan - Acquire right to access Kumeran register
202  *  @hw: pointer to the HW structure
203  *
204  *  Acquire the semaphore to access the Kumeran interface.
205  *
206  **/
207 static s32 e1000_acquire_mac_csr_80003es2lan(struct e1000_hw *hw)
208 {
209 	u16 mask;
210 
211 	mask = E1000_SWFW_CSR_SM;
212 
213 	return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
214 }
215 
216 /**
217  *  e1000_release_mac_csr_80003es2lan - Release right to access Kumeran Register
218  *  @hw: pointer to the HW structure
219  *
220  *  Release the semaphore used to access the Kumeran interface
221  **/
222 static void e1000_release_mac_csr_80003es2lan(struct e1000_hw *hw)
223 {
224 	u16 mask;
225 
226 	mask = E1000_SWFW_CSR_SM;
227 
228 	e1000_release_swfw_sync_80003es2lan(hw, mask);
229 }
230 
231 /**
232  *  e1000_acquire_nvm_80003es2lan - Acquire rights to access NVM
233  *  @hw: pointer to the HW structure
234  *
235  *  Acquire the semaphore to access the EEPROM.
236  **/
237 static s32 e1000_acquire_nvm_80003es2lan(struct e1000_hw *hw)
238 {
239 	s32 ret_val;
240 
241 	ret_val = e1000_acquire_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
242 	if (ret_val)
243 		return ret_val;
244 
245 	ret_val = e1000e_acquire_nvm(hw);
246 
247 	if (ret_val)
248 		e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
249 
250 	return ret_val;
251 }
252 
253 /**
254  *  e1000_release_nvm_80003es2lan - Relinquish rights to access NVM
255  *  @hw: pointer to the HW structure
256  *
257  *  Release the semaphore used to access the EEPROM.
258  **/
259 static void e1000_release_nvm_80003es2lan(struct e1000_hw *hw)
260 {
261 	e1000e_release_nvm(hw);
262 	e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
263 }
264 
265 /**
266  *  e1000_acquire_swfw_sync_80003es2lan - Acquire SW/FW semaphore
267  *  @hw: pointer to the HW structure
268  *  @mask: specifies which semaphore to acquire
269  *
270  *  Acquire the SW/FW semaphore to access the PHY or NVM.  The mask
271  *  will also specify which port we're acquiring the lock for.
272  **/
273 static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
274 {
275 	u32 swfw_sync;
276 	u32 swmask = mask;
277 	u32 fwmask = mask << 16;
278 	s32 i = 0;
279 	s32 timeout = 50;
280 
281 	while (i < timeout) {
282 		if (e1000e_get_hw_semaphore(hw))
283 			return -E1000_ERR_SWFW_SYNC;
284 
285 		swfw_sync = er32(SW_FW_SYNC);
286 		if (!(swfw_sync & (fwmask | swmask)))
287 			break;
288 
289 		/* Firmware currently using resource (fwmask)
290 		 * or other software thread using resource (swmask)
291 		 */
292 		e1000e_put_hw_semaphore(hw);
293 		mdelay(5);
294 		i++;
295 	}
296 
297 	if (i == timeout) {
298 		e_dbg("Driver can't access resource, SW_FW_SYNC timeout.\n");
299 		return -E1000_ERR_SWFW_SYNC;
300 	}
301 
302 	swfw_sync |= swmask;
303 	ew32(SW_FW_SYNC, swfw_sync);
304 
305 	e1000e_put_hw_semaphore(hw);
306 
307 	return 0;
308 }
309 
310 /**
311  *  e1000_release_swfw_sync_80003es2lan - Release SW/FW semaphore
312  *  @hw: pointer to the HW structure
313  *  @mask: specifies which semaphore to acquire
314  *
315  *  Release the SW/FW semaphore used to access the PHY or NVM.  The mask
316  *  will also specify which port we're releasing the lock for.
317  **/
318 static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
319 {
320 	u32 swfw_sync;
321 
322 	while (e1000e_get_hw_semaphore(hw) != 0)
323 		; /* Empty */
324 
325 	swfw_sync = er32(SW_FW_SYNC);
326 	swfw_sync &= ~mask;
327 	ew32(SW_FW_SYNC, swfw_sync);
328 
329 	e1000e_put_hw_semaphore(hw);
330 }
331 
332 /**
333  *  e1000_read_phy_reg_gg82563_80003es2lan - Read GG82563 PHY register
334  *  @hw: pointer to the HW structure
335  *  @offset: offset of the register to read
336  *  @data: pointer to the data returned from the operation
337  *
338  *  Read the GG82563 PHY register.
339  **/
340 static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
341 						  u32 offset, u16 *data)
342 {
343 	s32 ret_val;
344 	u32 page_select;
345 	u16 temp;
346 
347 	ret_val = e1000_acquire_phy_80003es2lan(hw);
348 	if (ret_val)
349 		return ret_val;
350 
351 	/* Select Configuration Page */
352 	if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
353 		page_select = GG82563_PHY_PAGE_SELECT;
354 	} else {
355 		/* Use Alternative Page Select register to access
356 		 * registers 30 and 31
357 		 */
358 		page_select = GG82563_PHY_PAGE_SELECT_ALT;
359 	}
360 
361 	temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
362 	ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
363 	if (ret_val) {
364 		e1000_release_phy_80003es2lan(hw);
365 		return ret_val;
366 	}
367 
368 	if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
369 		/* The "ready" bit in the MDIC register may be incorrectly set
370 		 * before the device has completed the "Page Select" MDI
371 		 * transaction.  So we wait 200us after each MDI command...
372 		 */
373 		usleep_range(200, 400);
374 
375 		/* ...and verify the command was successful. */
376 		ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
377 
378 		if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
379 			e1000_release_phy_80003es2lan(hw);
380 			return -E1000_ERR_PHY;
381 		}
382 
383 		usleep_range(200, 400);
384 
385 		ret_val = e1000e_read_phy_reg_mdic(hw,
386 						   MAX_PHY_REG_ADDRESS & offset,
387 						   data);
388 
389 		usleep_range(200, 400);
390 	} else {
391 		ret_val = e1000e_read_phy_reg_mdic(hw,
392 						   MAX_PHY_REG_ADDRESS & offset,
393 						   data);
394 	}
395 
396 	e1000_release_phy_80003es2lan(hw);
397 
398 	return ret_val;
399 }
400 
401 /**
402  *  e1000_write_phy_reg_gg82563_80003es2lan - Write GG82563 PHY register
403  *  @hw: pointer to the HW structure
404  *  @offset: offset of the register to read
405  *  @data: value to write to the register
406  *
407  *  Write to the GG82563 PHY register.
408  **/
409 static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
410 						   u32 offset, u16 data)
411 {
412 	s32 ret_val;
413 	u32 page_select;
414 	u16 temp;
415 
416 	ret_val = e1000_acquire_phy_80003es2lan(hw);
417 	if (ret_val)
418 		return ret_val;
419 
420 	/* Select Configuration Page */
421 	if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
422 		page_select = GG82563_PHY_PAGE_SELECT;
423 	} else {
424 		/* Use Alternative Page Select register to access
425 		 * registers 30 and 31
426 		 */
427 		page_select = GG82563_PHY_PAGE_SELECT_ALT;
428 	}
429 
430 	temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
431 	ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
432 	if (ret_val) {
433 		e1000_release_phy_80003es2lan(hw);
434 		return ret_val;
435 	}
436 
437 	if (hw->dev_spec.e80003es2lan.mdic_wa_enable) {
438 		/* The "ready" bit in the MDIC register may be incorrectly set
439 		 * before the device has completed the "Page Select" MDI
440 		 * transaction.  So we wait 200us after each MDI command...
441 		 */
442 		usleep_range(200, 400);
443 
444 		/* ...and verify the command was successful. */
445 		ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
446 
447 		if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
448 			e1000_release_phy_80003es2lan(hw);
449 			return -E1000_ERR_PHY;
450 		}
451 
452 		usleep_range(200, 400);
453 
454 		ret_val = e1000e_write_phy_reg_mdic(hw,
455 						    MAX_PHY_REG_ADDRESS &
456 						    offset, data);
457 
458 		usleep_range(200, 400);
459 	} else {
460 		ret_val = e1000e_write_phy_reg_mdic(hw,
461 						    MAX_PHY_REG_ADDRESS &
462 						    offset, data);
463 	}
464 
465 	e1000_release_phy_80003es2lan(hw);
466 
467 	return ret_val;
468 }
469 
470 /**
471  *  e1000_write_nvm_80003es2lan - Write to ESB2 NVM
472  *  @hw: pointer to the HW structure
473  *  @offset: offset of the register to read
474  *  @words: number of words to write
475  *  @data: buffer of data to write to the NVM
476  *
477  *  Write "words" of data to the ESB2 NVM.
478  **/
479 static s32 e1000_write_nvm_80003es2lan(struct e1000_hw *hw, u16 offset,
480 				       u16 words, u16 *data)
481 {
482 	return e1000e_write_nvm_spi(hw, offset, words, data);
483 }
484 
485 /**
486  *  e1000_get_cfg_done_80003es2lan - Wait for configuration to complete
487  *  @hw: pointer to the HW structure
488  *
489  *  Wait a specific amount of time for manageability processes to complete.
490  *  This is a function pointer entry point called by the phy module.
491  **/
492 static s32 e1000_get_cfg_done_80003es2lan(struct e1000_hw *hw)
493 {
494 	s32 timeout = PHY_CFG_TIMEOUT;
495 	u32 mask = E1000_NVM_CFG_DONE_PORT_0;
496 
497 	if (hw->bus.func == 1)
498 		mask = E1000_NVM_CFG_DONE_PORT_1;
499 
500 	while (timeout) {
501 		if (er32(EEMNGCTL) & mask)
502 			break;
503 		usleep_range(1000, 2000);
504 		timeout--;
505 	}
506 	if (!timeout) {
507 		e_dbg("MNG configuration cycle has not completed.\n");
508 		return -E1000_ERR_RESET;
509 	}
510 
511 	return 0;
512 }
513 
514 /**
515  *  e1000_phy_force_speed_duplex_80003es2lan - Force PHY speed and duplex
516  *  @hw: pointer to the HW structure
517  *
518  *  Force the speed and duplex settings onto the PHY.  This is a
519  *  function pointer entry point called by the phy module.
520  **/
521 static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw)
522 {
523 	s32 ret_val;
524 	u16 phy_data;
525 	bool link;
526 
527 	/* Clear Auto-Crossover to force MDI manually.  M88E1000 requires MDI
528 	 * forced whenever speed and duplex are forced.
529 	 */
530 	ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
531 	if (ret_val)
532 		return ret_val;
533 
534 	phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_AUTO;
535 	ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, phy_data);
536 	if (ret_val)
537 		return ret_val;
538 
539 	e_dbg("GG82563 PSCR: %X\n", phy_data);
540 
541 	ret_val = e1e_rphy(hw, MII_BMCR, &phy_data);
542 	if (ret_val)
543 		return ret_val;
544 
545 	e1000e_phy_force_speed_duplex_setup(hw, &phy_data);
546 
547 	/* Reset the phy to commit changes. */
548 	phy_data |= BMCR_RESET;
549 
550 	ret_val = e1e_wphy(hw, MII_BMCR, phy_data);
551 	if (ret_val)
552 		return ret_val;
553 
554 	udelay(1);
555 
556 	if (hw->phy.autoneg_wait_to_complete) {
557 		e_dbg("Waiting for forced speed/duplex link on GG82563 phy.\n");
558 
559 		ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
560 						      100000, &link);
561 		if (ret_val)
562 			return ret_val;
563 
564 		if (!link) {
565 			/* We didn't get link.
566 			 * Reset the DSP and cross our fingers.
567 			 */
568 			ret_val = e1000e_phy_reset_dsp(hw);
569 			if (ret_val)
570 				return ret_val;
571 		}
572 
573 		/* Try once more */
574 		ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
575 						      100000, &link);
576 		if (ret_val)
577 			return ret_val;
578 	}
579 
580 	ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data);
581 	if (ret_val)
582 		return ret_val;
583 
584 	/* Resetting the phy means we need to verify the TX_CLK corresponds
585 	 * to the link speed.  10Mbps -> 2.5MHz, else 25MHz.
586 	 */
587 	phy_data &= ~GG82563_MSCR_TX_CLK_MASK;
588 	if (hw->mac.forced_speed_duplex & E1000_ALL_10_SPEED)
589 		phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5;
590 	else
591 		phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25;
592 
593 	/* In addition, we must re-enable CRS on Tx for both half and full
594 	 * duplex.
595 	 */
596 	phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
597 	ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data);
598 
599 	return ret_val;
600 }
601 
602 /**
603  *  e1000_get_cable_length_80003es2lan - Set approximate cable length
604  *  @hw: pointer to the HW structure
605  *
606  *  Find the approximate cable length as measured by the GG82563 PHY.
607  *  This is a function pointer entry point called by the phy module.
608  **/
609 static s32 e1000_get_cable_length_80003es2lan(struct e1000_hw *hw)
610 {
611 	struct e1000_phy_info *phy = &hw->phy;
612 	s32 ret_val;
613 	u16 phy_data, index;
614 
615 	ret_val = e1e_rphy(hw, GG82563_PHY_DSP_DISTANCE, &phy_data);
616 	if (ret_val)
617 		return ret_val;
618 
619 	index = phy_data & GG82563_DSPD_CABLE_LENGTH;
620 
621 	if (index >= GG82563_CABLE_LENGTH_TABLE_SIZE - 5)
622 		return -E1000_ERR_PHY;
623 
624 	phy->min_cable_length = e1000_gg82563_cable_length_table[index];
625 	phy->max_cable_length = e1000_gg82563_cable_length_table[index + 5];
626 
627 	phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;
628 
629 	return 0;
630 }
631 
632 /**
633  *  e1000_get_link_up_info_80003es2lan - Report speed and duplex
634  *  @hw: pointer to the HW structure
635  *  @speed: pointer to speed buffer
636  *  @duplex: pointer to duplex buffer
637  *
638  *  Retrieve the current speed and duplex configuration.
639  **/
640 static s32 e1000_get_link_up_info_80003es2lan(struct e1000_hw *hw, u16 *speed,
641 					      u16 *duplex)
642 {
643 	s32 ret_val;
644 
645 	if (hw->phy.media_type == e1000_media_type_copper) {
646 		ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex);
647 		hw->phy.ops.cfg_on_link_up(hw);
648 	} else {
649 		ret_val = e1000e_get_speed_and_duplex_fiber_serdes(hw,
650 								   speed,
651 								   duplex);
652 	}
653 
654 	return ret_val;
655 }
656 
657 /**
658  *  e1000_reset_hw_80003es2lan - Reset the ESB2 controller
659  *  @hw: pointer to the HW structure
660  *
661  *  Perform a global reset to the ESB2 controller.
662  **/
663 static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw)
664 {
665 	u32 ctrl;
666 	s32 ret_val;
667 	u16 kum_reg_data;
668 
669 	/* Prevent the PCI-E bus from sticking if there is no TLP connection
670 	 * on the last TLP read/write transaction when MAC is reset.
671 	 */
672 	ret_val = e1000e_disable_pcie_master(hw);
673 	if (ret_val)
674 		e_dbg("PCI-E Master disable polling has failed.\n");
675 
676 	e_dbg("Masking off all interrupts\n");
677 	ew32(IMC, 0xffffffff);
678 
679 	ew32(RCTL, 0);
680 	ew32(TCTL, E1000_TCTL_PSP);
681 	e1e_flush();
682 
683 	usleep_range(10000, 11000);
684 
685 	ctrl = er32(CTRL);
686 
687 	ret_val = e1000_acquire_phy_80003es2lan(hw);
688 	if (ret_val)
689 		return ret_val;
690 
691 	e_dbg("Issuing a global reset to MAC\n");
692 	ew32(CTRL, ctrl | E1000_CTRL_RST);
693 	e1000_release_phy_80003es2lan(hw);
694 
695 	/* Disable IBIST slave mode (far-end loopback) */
696 	ret_val =
697 	    e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
698 					    &kum_reg_data);
699 	if (!ret_val) {
700 		kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
701 		ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
702 						 E1000_KMRNCTRLSTA_INBAND_PARAM,
703 						 kum_reg_data);
704 		if (ret_val)
705 			e_dbg("Error disabling far-end loopback\n");
706 	} else {
707 		e_dbg("Error disabling far-end loopback\n");
708 	}
709 
710 	ret_val = e1000e_get_auto_rd_done(hw);
711 	if (ret_val)
712 		/* We don't want to continue accessing MAC registers. */
713 		return ret_val;
714 
715 	/* Clear any pending interrupt events. */
716 	ew32(IMC, 0xffffffff);
717 	er32(ICR);
718 
719 	return e1000_check_alt_mac_addr_generic(hw);
720 }
721 
722 /**
723  *  e1000_init_hw_80003es2lan - Initialize the ESB2 controller
724  *  @hw: pointer to the HW structure
725  *
726  *  Initialize the hw bits, LED, VFTA, MTA, link and hw counters.
727  **/
728 static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw)
729 {
730 	struct e1000_mac_info *mac = &hw->mac;
731 	u32 reg_data;
732 	s32 ret_val;
733 	u16 kum_reg_data;
734 	u16 i;
735 
736 	e1000_initialize_hw_bits_80003es2lan(hw);
737 
738 	/* Initialize identification LED */
739 	ret_val = mac->ops.id_led_init(hw);
740 	/* An error is not fatal and we should not stop init due to this */
741 	if (ret_val)
742 		e_dbg("Error initializing identification LED\n");
743 
744 	/* Disabling VLAN filtering */
745 	e_dbg("Initializing the IEEE VLAN\n");
746 	mac->ops.clear_vfta(hw);
747 
748 	/* Setup the receive address. */
749 	e1000e_init_rx_addrs(hw, mac->rar_entry_count);
750 
751 	/* Zero out the Multicast HASH table */
752 	e_dbg("Zeroing the MTA\n");
753 	for (i = 0; i < mac->mta_reg_count; i++)
754 		E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
755 
756 	/* Setup link and flow control */
757 	ret_val = mac->ops.setup_link(hw);
758 	if (ret_val)
759 		return ret_val;
760 
761 	/* Disable IBIST slave mode (far-end loopback) */
762 	ret_val =
763 	    e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
764 					    &kum_reg_data);
765 	if (!ret_val) {
766 		kum_reg_data |= E1000_KMRNCTRLSTA_IBIST_DISABLE;
767 		ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
768 						 E1000_KMRNCTRLSTA_INBAND_PARAM,
769 						 kum_reg_data);
770 		if (ret_val)
771 			e_dbg("Error disabling far-end loopback\n");
772 	} else {
773 		e_dbg("Error disabling far-end loopback\n");
774 	}
775 
776 	/* Set the transmit descriptor write-back policy */
777 	reg_data = er32(TXDCTL(0));
778 	reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
779 		    E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
780 	ew32(TXDCTL(0), reg_data);
781 
782 	/* ...for both queues. */
783 	reg_data = er32(TXDCTL(1));
784 	reg_data = ((reg_data & ~E1000_TXDCTL_WTHRESH) |
785 		    E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC);
786 	ew32(TXDCTL(1), reg_data);
787 
788 	/* Enable retransmit on late collisions */
789 	reg_data = er32(TCTL);
790 	reg_data |= E1000_TCTL_RTLC;
791 	ew32(TCTL, reg_data);
792 
793 	/* Configure Gigabit Carry Extend Padding */
794 	reg_data = er32(TCTL_EXT);
795 	reg_data &= ~E1000_TCTL_EXT_GCEX_MASK;
796 	reg_data |= DEFAULT_TCTL_EXT_GCEX_80003ES2LAN;
797 	ew32(TCTL_EXT, reg_data);
798 
799 	/* Configure Transmit Inter-Packet Gap */
800 	reg_data = er32(TIPG);
801 	reg_data &= ~E1000_TIPG_IPGT_MASK;
802 	reg_data |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
803 	ew32(TIPG, reg_data);
804 
805 	reg_data = E1000_READ_REG_ARRAY(hw, E1000_FFLT, 0x0001);
806 	reg_data &= ~0x00100000;
807 	E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data);
808 
809 	/* default to true to enable the MDIC W/A */
810 	hw->dev_spec.e80003es2lan.mdic_wa_enable = true;
811 
812 	ret_val =
813 	    e1000_read_kmrn_reg_80003es2lan(hw, E1000_KMRNCTRLSTA_OFFSET >>
814 					    E1000_KMRNCTRLSTA_OFFSET_SHIFT, &i);
815 	if (!ret_val) {
816 		if ((i & E1000_KMRNCTRLSTA_OPMODE_MASK) ==
817 		    E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO)
818 			hw->dev_spec.e80003es2lan.mdic_wa_enable = false;
819 	}
820 
821 	/* Clear all of the statistics registers (clear on read).  It is
822 	 * important that we do this after we have tried to establish link
823 	 * because the symbol error count will increment wildly if there
824 	 * is no link.
825 	 */
826 	e1000_clear_hw_cntrs_80003es2lan(hw);
827 
828 	return ret_val;
829 }
830 
831 /**
832  *  e1000_initialize_hw_bits_80003es2lan - Init hw bits of ESB2
833  *  @hw: pointer to the HW structure
834  *
835  *  Initializes required hardware-dependent bits needed for normal operation.
836  **/
837 static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw)
838 {
839 	u32 reg;
840 
841 	/* Transmit Descriptor Control 0 */
842 	reg = er32(TXDCTL(0));
843 	reg |= BIT(22);
844 	ew32(TXDCTL(0), reg);
845 
846 	/* Transmit Descriptor Control 1 */
847 	reg = er32(TXDCTL(1));
848 	reg |= BIT(22);
849 	ew32(TXDCTL(1), reg);
850 
851 	/* Transmit Arbitration Control 0 */
852 	reg = er32(TARC(0));
853 	reg &= ~(0xF << 27);	/* 30:27 */
854 	if (hw->phy.media_type != e1000_media_type_copper)
855 		reg &= ~BIT(20);
856 	ew32(TARC(0), reg);
857 
858 	/* Transmit Arbitration Control 1 */
859 	reg = er32(TARC(1));
860 	if (er32(TCTL) & E1000_TCTL_MULR)
861 		reg &= ~BIT(28);
862 	else
863 		reg |= BIT(28);
864 	ew32(TARC(1), reg);
865 
866 	/* Disable IPv6 extension header parsing because some malformed
867 	 * IPv6 headers can hang the Rx.
868 	 */
869 	reg = er32(RFCTL);
870 	reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
871 	ew32(RFCTL, reg);
872 }
873 
874 /**
875  *  e1000_copper_link_setup_gg82563_80003es2lan - Configure GG82563 Link
876  *  @hw: pointer to the HW structure
877  *
878  *  Setup some GG82563 PHY registers for obtaining link
879  **/
880 static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
881 {
882 	struct e1000_phy_info *phy = &hw->phy;
883 	s32 ret_val;
884 	u32 reg;
885 	u16 data;
886 
887 	ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &data);
888 	if (ret_val)
889 		return ret_val;
890 
891 	data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
892 	/* Use 25MHz for both link down and 1000Base-T for Tx clock. */
893 	data |= GG82563_MSCR_TX_CLK_1000MBPS_25;
894 
895 	ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, data);
896 	if (ret_val)
897 		return ret_val;
898 
899 	/* Options:
900 	 *   MDI/MDI-X = 0 (default)
901 	 *   0 - Auto for all speeds
902 	 *   1 - MDI mode
903 	 *   2 - MDI-X mode
904 	 *   3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
905 	 */
906 	ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL, &data);
907 	if (ret_val)
908 		return ret_val;
909 
910 	data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK;
911 
912 	switch (phy->mdix) {
913 	case 1:
914 		data |= GG82563_PSCR_CROSSOVER_MODE_MDI;
915 		break;
916 	case 2:
917 		data |= GG82563_PSCR_CROSSOVER_MODE_MDIX;
918 		break;
919 	case 0:
920 	default:
921 		data |= GG82563_PSCR_CROSSOVER_MODE_AUTO;
922 		break;
923 	}
924 
925 	/* Options:
926 	 *   disable_polarity_correction = 0 (default)
927 	 *       Automatic Correction for Reversed Cable Polarity
928 	 *   0 - Disabled
929 	 *   1 - Enabled
930 	 */
931 	data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
932 	if (phy->disable_polarity_correction)
933 		data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
934 
935 	ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, data);
936 	if (ret_val)
937 		return ret_val;
938 
939 	/* SW Reset the PHY so all changes take effect */
940 	ret_val = hw->phy.ops.commit(hw);
941 	if (ret_val) {
942 		e_dbg("Error Resetting the PHY\n");
943 		return ret_val;
944 	}
945 
946 	/* Bypass Rx and Tx FIFO's */
947 	reg = E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL;
948 	data = (E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS |
949 		E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS);
950 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, reg, data);
951 	if (ret_val)
952 		return ret_val;
953 
954 	reg = E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE;
955 	ret_val = e1000_read_kmrn_reg_80003es2lan(hw, reg, &data);
956 	if (ret_val)
957 		return ret_val;
958 	data |= E1000_KMRNCTRLSTA_OPMODE_E_IDLE;
959 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, reg, data);
960 	if (ret_val)
961 		return ret_val;
962 
963 	ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL_2, &data);
964 	if (ret_val)
965 		return ret_val;
966 
967 	data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG;
968 	ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL_2, data);
969 	if (ret_val)
970 		return ret_val;
971 
972 	reg = er32(CTRL_EXT);
973 	reg &= ~E1000_CTRL_EXT_LINK_MODE_MASK;
974 	ew32(CTRL_EXT, reg);
975 
976 	ret_val = e1e_rphy(hw, GG82563_PHY_PWR_MGMT_CTRL, &data);
977 	if (ret_val)
978 		return ret_val;
979 
980 	/* Do not init these registers when the HW is in IAMT mode, since the
981 	 * firmware will have already initialized them.  We only initialize
982 	 * them if the HW is not in IAMT mode.
983 	 */
984 	if (!hw->mac.ops.check_mng_mode(hw)) {
985 		/* Enable Electrical Idle on the PHY */
986 		data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE;
987 		ret_val = e1e_wphy(hw, GG82563_PHY_PWR_MGMT_CTRL, data);
988 		if (ret_val)
989 			return ret_val;
990 
991 		ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &data);
992 		if (ret_val)
993 			return ret_val;
994 
995 		data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
996 		ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data);
997 		if (ret_val)
998 			return ret_val;
999 	}
1000 
1001 	/* Workaround: Disable padding in Kumeran interface in the MAC
1002 	 * and in the PHY to avoid CRC errors.
1003 	 */
1004 	ret_val = e1e_rphy(hw, GG82563_PHY_INBAND_CTRL, &data);
1005 	if (ret_val)
1006 		return ret_val;
1007 
1008 	data |= GG82563_ICR_DIS_PADDING;
1009 	ret_val = e1e_wphy(hw, GG82563_PHY_INBAND_CTRL, data);
1010 	if (ret_val)
1011 		return ret_val;
1012 
1013 	return 0;
1014 }
1015 
1016 /**
1017  *  e1000_setup_copper_link_80003es2lan - Setup Copper Link for ESB2
1018  *  @hw: pointer to the HW structure
1019  *
1020  *  Essentially a wrapper for setting up all things "copper" related.
1021  *  This is a function pointer entry point called by the mac module.
1022  **/
1023 static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw)
1024 {
1025 	u32 ctrl;
1026 	s32 ret_val;
1027 	u16 reg_data;
1028 
1029 	ctrl = er32(CTRL);
1030 	ctrl |= E1000_CTRL_SLU;
1031 	ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1032 	ew32(CTRL, ctrl);
1033 
1034 	/* Set the mac to wait the maximum time between each
1035 	 * iteration and increase the max iterations when
1036 	 * polling the phy; this fixes erroneous timeouts at 10Mbps.
1037 	 */
1038 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 4),
1039 						   0xFFFF);
1040 	if (ret_val)
1041 		return ret_val;
1042 	ret_val = e1000_read_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
1043 						  &reg_data);
1044 	if (ret_val)
1045 		return ret_val;
1046 	reg_data |= 0x3F;
1047 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
1048 						   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 					    &reg_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  **/
1079 static 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  **/
1108 static 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, &reg_data);
1131 		if (ret_val)
1132 			return ret_val;
1133 
1134 		ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_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  **/
1155 static 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, &reg_data);
1178 		if (ret_val)
1179 			return ret_val;
1180 
1181 		ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_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  **/
1202 static 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 = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
1213 		       E1000_KMRNCTRLSTA_OFFSET) | 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  **/
1237 static 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 = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
1248 		       E1000_KMRNCTRLSTA_OFFSET) | data;
1249 	ew32(KMRNCTRLSTA, kmrnctrlsta);
1250 	e1e_flush();
1251 
1252 	udelay(2);
1253 
1254 	e1000_release_mac_csr_80003es2lan(hw);
1255 
1256 	return ret_val;
1257 }
1258 
1259 /**
1260  *  e1000_read_mac_addr_80003es2lan - Read device MAC address
1261  *  @hw: pointer to the HW structure
1262  **/
1263 static s32 e1000_read_mac_addr_80003es2lan(struct e1000_hw *hw)
1264 {
1265 	s32 ret_val;
1266 
1267 	/* If there's an alternate MAC address place it in RAR0
1268 	 * so that it will override the Si installed default perm
1269 	 * address.
1270 	 */
1271 	ret_val = e1000_check_alt_mac_addr_generic(hw);
1272 	if (ret_val)
1273 		return ret_val;
1274 
1275 	return e1000_read_mac_addr_generic(hw);
1276 }
1277 
1278 /**
1279  * e1000_power_down_phy_copper_80003es2lan - Remove link during PHY power down
1280  * @hw: pointer to the HW structure
1281  *
1282  * In the case of a PHY power down to save power, or to turn off link during a
1283  * driver unload, or wake on lan is not enabled, remove the link.
1284  **/
1285 static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw)
1286 {
1287 	/* If the management interface is not enabled, then power down */
1288 	if (!(hw->mac.ops.check_mng_mode(hw) ||
1289 	      hw->phy.ops.check_reset_block(hw)))
1290 		e1000_power_down_phy_copper(hw);
1291 }
1292 
1293 /**
1294  *  e1000_clear_hw_cntrs_80003es2lan - Clear device specific hardware counters
1295  *  @hw: pointer to the HW structure
1296  *
1297  *  Clears the hardware counters by reading the counter registers.
1298  **/
1299 static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw)
1300 {
1301 	e1000e_clear_hw_cntrs_base(hw);
1302 
1303 	er32(PRC64);
1304 	er32(PRC127);
1305 	er32(PRC255);
1306 	er32(PRC511);
1307 	er32(PRC1023);
1308 	er32(PRC1522);
1309 	er32(PTC64);
1310 	er32(PTC127);
1311 	er32(PTC255);
1312 	er32(PTC511);
1313 	er32(PTC1023);
1314 	er32(PTC1522);
1315 
1316 	er32(ALGNERRC);
1317 	er32(RXERRC);
1318 	er32(TNCRS);
1319 	er32(CEXTERR);
1320 	er32(TSCTC);
1321 	er32(TSCTFC);
1322 
1323 	er32(MGTPRC);
1324 	er32(MGTPDC);
1325 	er32(MGTPTC);
1326 
1327 	er32(IAC);
1328 	er32(ICRXOC);
1329 
1330 	er32(ICRXPTC);
1331 	er32(ICRXATC);
1332 	er32(ICTXPTC);
1333 	er32(ICTXATC);
1334 	er32(ICTXQEC);
1335 	er32(ICTXQMTC);
1336 	er32(ICRXDMTC);
1337 }
1338 
1339 static const struct e1000_mac_operations es2_mac_ops = {
1340 	.read_mac_addr		= e1000_read_mac_addr_80003es2lan,
1341 	.id_led_init		= e1000e_id_led_init_generic,
1342 	.blink_led		= e1000e_blink_led_generic,
1343 	.check_mng_mode		= e1000e_check_mng_mode_generic,
1344 	/* check_for_link dependent on media type */
1345 	.cleanup_led		= e1000e_cleanup_led_generic,
1346 	.clear_hw_cntrs		= e1000_clear_hw_cntrs_80003es2lan,
1347 	.get_bus_info		= e1000e_get_bus_info_pcie,
1348 	.set_lan_id		= e1000_set_lan_id_multi_port_pcie,
1349 	.get_link_up_info	= e1000_get_link_up_info_80003es2lan,
1350 	.led_on			= e1000e_led_on_generic,
1351 	.led_off		= e1000e_led_off_generic,
1352 	.update_mc_addr_list	= e1000e_update_mc_addr_list_generic,
1353 	.write_vfta		= e1000_write_vfta_generic,
1354 	.clear_vfta		= e1000_clear_vfta_generic,
1355 	.reset_hw		= e1000_reset_hw_80003es2lan,
1356 	.init_hw		= e1000_init_hw_80003es2lan,
1357 	.setup_link		= e1000e_setup_link_generic,
1358 	/* setup_physical_interface dependent on media type */
1359 	.setup_led		= e1000e_setup_led_generic,
1360 	.config_collision_dist	= e1000e_config_collision_dist_generic,
1361 	.rar_set		= e1000e_rar_set_generic,
1362 	.rar_get_count		= e1000e_rar_get_count_generic,
1363 };
1364 
1365 static const struct e1000_phy_operations es2_phy_ops = {
1366 	.acquire		= e1000_acquire_phy_80003es2lan,
1367 	.check_polarity		= e1000_check_polarity_m88,
1368 	.check_reset_block	= e1000e_check_reset_block_generic,
1369 	.commit			= e1000e_phy_sw_reset,
1370 	.force_speed_duplex	= e1000_phy_force_speed_duplex_80003es2lan,
1371 	.get_cfg_done		= e1000_get_cfg_done_80003es2lan,
1372 	.get_cable_length	= e1000_get_cable_length_80003es2lan,
1373 	.get_info		= e1000e_get_phy_info_m88,
1374 	.read_reg		= e1000_read_phy_reg_gg82563_80003es2lan,
1375 	.release		= e1000_release_phy_80003es2lan,
1376 	.reset			= e1000e_phy_hw_reset_generic,
1377 	.set_d0_lplu_state	= NULL,
1378 	.set_d3_lplu_state	= e1000e_set_d3_lplu_state,
1379 	.write_reg		= e1000_write_phy_reg_gg82563_80003es2lan,
1380 	.cfg_on_link_up		= e1000_cfg_on_link_up_80003es2lan,
1381 };
1382 
1383 static const struct e1000_nvm_operations es2_nvm_ops = {
1384 	.acquire		= e1000_acquire_nvm_80003es2lan,
1385 	.read			= e1000e_read_nvm_eerd,
1386 	.release		= e1000_release_nvm_80003es2lan,
1387 	.reload			= e1000e_reload_nvm_generic,
1388 	.update			= e1000e_update_nvm_checksum_generic,
1389 	.valid_led_default	= e1000e_valid_led_default,
1390 	.validate		= e1000e_validate_nvm_checksum_generic,
1391 	.write			= e1000_write_nvm_80003es2lan,
1392 };
1393 
1394 const struct e1000_info e1000_es2_info = {
1395 	.mac			= e1000_80003es2lan,
1396 	.flags			= FLAG_HAS_HW_VLAN_FILTER
1397 				  | FLAG_HAS_JUMBO_FRAMES
1398 				  | FLAG_HAS_WOL
1399 				  | FLAG_APME_IN_CTRL3
1400 				  | FLAG_HAS_CTRLEXT_ON_LOAD
1401 				  | FLAG_RX_NEEDS_RESTART /* errata */
1402 				  | FLAG_TARC_SET_BIT_ZERO /* errata */
1403 				  | FLAG_APME_CHECK_PORT_B
1404 				  | FLAG_DISABLE_FC_PAUSE_TIME, /* errata */
1405 	.flags2			= FLAG2_DMA_BURST,
1406 	.pba			= 38,
1407 	.max_hw_frame_size	= DEFAULT_JUMBO,
1408 	.get_variants		= e1000_get_variants_80003es2lan,
1409 	.mac_ops		= &es2_mac_ops,
1410 	.phy_ops		= &es2_phy_ops,
1411 	.nvm_ops		= &es2_nvm_ops,
1412 };
1413