?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
proc: use seq_puts()/seq_putc() where possible
[linux-2.6/next.git] / drivers / net / e1000e / es2lan.c
blobe45a61c8930a792b7333ca881fd291254de94058
1 /*******************************************************************************
2
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2010 Intel Corporation.
5
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
9
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 more details.
14
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
21
22 Contact Information:
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
26
27 *******************************************************************************/
28
29 /*
30 * 80003ES2LAN Gigabit Ethernet Controller (Copper)
31 * 80003ES2LAN Gigabit Ethernet Controller (Serdes)
32 */
33
34 #include "e1000.h"
35
36 #define E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL 0x00
37 #define E1000_KMRNCTRLSTA_OFFSET_INB_CTRL 0x02
38 #define E1000_KMRNCTRLSTA_OFFSET_HD_CTRL 0x10
39 #define E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE 0x1F
40
41 #define E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS 0x0008
42 #define E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS 0x0800
43 #define E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING 0x0010
44
45 #define E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT 0x0004
46 #define E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT 0x0000
47 #define E1000_KMRNCTRLSTA_OPMODE_E_IDLE 0x2000
48
49 #define E1000_KMRNCTRLSTA_OPMODE_MASK 0x000C
50 #define E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO 0x0004
51
52 #define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */
53 #define DEFAULT_TCTL_EXT_GCEX_80003ES2LAN 0x00010000
54
55 #define DEFAULT_TIPG_IPGT_1000_80003ES2LAN 0x8
56 #define DEFAULT_TIPG_IPGT_10_100_80003ES2LAN 0x9
57
58 /* GG82563 PHY Specific Status Register (Page 0, Register 16 */
59 #define GG82563_PSCR_POLARITY_REVERSAL_DISABLE 0x0002 /* 1=Reversal Disab. */
60 #define GG82563_PSCR_CROSSOVER_MODE_MASK 0x0060
61 #define GG82563_PSCR_CROSSOVER_MODE_MDI 0x0000 /* 00=Manual MDI */
62 #define GG82563_PSCR_CROSSOVER_MODE_MDIX 0x0020 /* 01=Manual MDIX */
63 #define GG82563_PSCR_CROSSOVER_MODE_AUTO 0x0060 /* 11=Auto crossover */
64
65 /* PHY Specific Control Register 2 (Page 0, Register 26) */
66 #define GG82563_PSCR2_REVERSE_AUTO_NEG 0x2000
67 /* 1=Reverse Auto-Negotiation */
68
69 /* MAC Specific Control Register (Page 2, Register 21) */
70 /* Tx clock speed for Link Down and 1000BASE-T for the following speeds */
71 #define GG82563_MSCR_TX_CLK_MASK 0x0007
72 #define GG82563_MSCR_TX_CLK_10MBPS_2_5 0x0004
73 #define GG82563_MSCR_TX_CLK_100MBPS_25 0x0005
74 #define GG82563_MSCR_TX_CLK_1000MBPS_25 0x0007
75
76 #define GG82563_MSCR_ASSERT_CRS_ON_TX 0x0010 /* 1=Assert */
77
78 /* DSP Distance Register (Page 5, Register 26) */
79 #define GG82563_DSPD_CABLE_LENGTH 0x0007 /* 0 = <50M
80 1 = 50-80M
81 2 = 80-110M
82 3 = 110-140M
83 4 = >140M */
84
85 /* Kumeran Mode Control Register (Page 193, Register 16) */
86 #define GG82563_KMCR_PASS_FALSE_CARRIER 0x0800
87
88 /* Max number of times Kumeran read/write should be validated */
89 #define GG82563_MAX_KMRN_RETRY 0x5
90
91 /* Power Management Control Register (Page 193, Register 20) */
92 #define GG82563_PMCR_ENABLE_ELECTRICAL_IDLE 0x0001
93 /* 1=Enable SERDES Electrical Idle */
94
95 /* In-Band Control Register (Page 194, Register 18) */
96 #define GG82563_ICR_DIS_PADDING 0x0010 /* Disable Padding */
97
98 /*
99 * A table for the GG82563 cable length where the range is defined
100 * with a lower bound at "index" and the upper bound at
101 * "index + 5".
102 */
103 static const u16 e1000_gg82563_cable_length_table[] = {
104 0, 60, 115, 150, 150, 60, 115, 150, 180, 180, 0xFF };
105 #define GG82563_CABLE_LENGTH_TABLE_SIZE \
106 ARRAY_SIZE(e1000_gg82563_cable_length_table)
107
108 static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw);
109 static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
110 static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask);
111 static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw);
112 static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw);
113 static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw);
114 static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex);
115 static s32 e1000_cfg_on_link_up_80003es2lan(struct e1000_hw *hw);
116 static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
117 u16 *data);
118 static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
119 u16 data);
120 static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw);
121
122 /**
123 * e1000_init_phy_params_80003es2lan - Init ESB2 PHY func ptrs.
124 * @hw: pointer to the HW structure
125 **/
126 static s32 e1000_init_phy_params_80003es2lan(struct e1000_hw *hw)
127 {
128 struct e1000_phy_info *phy = &hw->phy;
129 s32 ret_val;
130
131 if (hw->phy.media_type != e1000_media_type_copper) {
132 phy->type = e1000_phy_none;
133 return 0;
134 } else {
135 phy->ops.power_up = e1000_power_up_phy_copper;
136 phy->ops.power_down = e1000_power_down_phy_copper_80003es2lan;
137 }
138
139 phy->addr = 1;
140 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
141 phy->reset_delay_us = 100;
142 phy->type = e1000_phy_gg82563;
143
144 /* This can only be done after all function pointers are setup. */
145 ret_val = e1000e_get_phy_id(hw);
146
147 /* Verify phy id */
148 if (phy->id != GG82563_E_PHY_ID)
149 return -E1000_ERR_PHY;
150
151 return ret_val;
152 }
153
154 /**
155 * e1000_init_nvm_params_80003es2lan - Init ESB2 NVM func ptrs.
156 * @hw: pointer to the HW structure
157 **/
158 static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw)
159 {
160 struct e1000_nvm_info *nvm = &hw->nvm;
161 u32 eecd = er32(EECD);
162 u16 size;
163
164 nvm->opcode_bits = 8;
165 nvm->delay_usec = 1;
166 switch (nvm->override) {
167 case e1000_nvm_override_spi_large:
168 nvm->page_size = 32;
169 nvm->address_bits = 16;
170 break;
171 case e1000_nvm_override_spi_small:
172 nvm->page_size = 8;
173 nvm->address_bits = 8;
174 break;
175 default:
176 nvm->page_size = eecd & E1000_EECD_ADDR_BITS ? 32 : 8;
177 nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8;
178 break;
179 }
180
181 nvm->type = e1000_nvm_eeprom_spi;
182
183 size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
184 E1000_EECD_SIZE_EX_SHIFT);
185
186 /*
187 * Added to a constant, "size" becomes the left-shift value
188 * for setting word_size.
189 */
190 size += NVM_WORD_SIZE_BASE_SHIFT;
191
192 /* EEPROM access above 16k is unsupported */
193 if (size > 14)
194 size = 14;
195 nvm->word_size = 1 << size;
196
197 return 0;
198 }
199
200 /**
201 * e1000_init_mac_params_80003es2lan - Init ESB2 MAC func ptrs.
202 * @hw: pointer to the HW structure
203 **/
204 static s32 e1000_init_mac_params_80003es2lan(struct e1000_adapter *adapter)
205 {
206 struct e1000_hw *hw = &adapter->hw;
207 struct e1000_mac_info *mac = &hw->mac;
208 struct e1000_mac_operations *func = &mac->ops;
209
210 /* Set media type */
211 switch (adapter->pdev->device) {
212 case E1000_DEV_ID_80003ES2LAN_SERDES_DPT:
213 hw->phy.media_type = e1000_media_type_internal_serdes;
214 break;
215 default:
216 hw->phy.media_type = e1000_media_type_copper;
217 break;
218 }
219
220 /* Set mta register count */
221 mac->mta_reg_count = 128;
222 /* Set rar entry count */
223 mac->rar_entry_count = E1000_RAR_ENTRIES;
224 /* FWSM register */
225 mac->has_fwsm = true;
226 /* ARC supported; valid only if manageability features are enabled. */
227 mac->arc_subsystem_valid =
228 (er32(FWSM) & E1000_FWSM_MODE_MASK)
229 ? true : false;
230 /* Adaptive IFS not supported */
231 mac->adaptive_ifs = false;
232
233 /* check for link */
234 switch (hw->phy.media_type) {
235 case e1000_media_type_copper:
236 func->setup_physical_interface = e1000_setup_copper_link_80003es2lan;
237 func->check_for_link = e1000e_check_for_copper_link;
238 break;
239 case e1000_media_type_fiber:
240 func->setup_physical_interface = e1000e_setup_fiber_serdes_link;
241 func->check_for_link = e1000e_check_for_fiber_link;
242 break;
243 case e1000_media_type_internal_serdes:
244 func->setup_physical_interface = e1000e_setup_fiber_serdes_link;
245 func->check_for_link = e1000e_check_for_serdes_link;
246 break;
247 default:
248 return -E1000_ERR_CONFIG;
249 break;
250 }
251
252 /* set lan id for port to determine which phy lock to use */
253 hw->mac.ops.set_lan_id(hw);
254
255 return 0;
256 }
257
258 static s32 e1000_get_variants_80003es2lan(struct e1000_adapter *adapter)
259 {
260 struct e1000_hw *hw = &adapter->hw;
261 s32 rc;
262
263 rc = e1000_init_mac_params_80003es2lan(adapter);
264 if (rc)
265 return rc;
266
267 rc = e1000_init_nvm_params_80003es2lan(hw);
268 if (rc)
269 return rc;
270
271 rc = e1000_init_phy_params_80003es2lan(hw);
272 if (rc)
273 return rc;
274
275 return 0;
276 }
277
278 /**
279 * e1000_acquire_phy_80003es2lan - Acquire rights to access PHY
280 * @hw: pointer to the HW structure
281 *
282 * A wrapper to acquire access rights to the correct PHY.
283 **/
284 static s32 e1000_acquire_phy_80003es2lan(struct e1000_hw *hw)
285 {
286 u16 mask;
287
288 mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
289 return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
290 }
291
292 /**
293 * e1000_release_phy_80003es2lan - Release rights to access PHY
294 * @hw: pointer to the HW structure
295 *
296 * A wrapper to release access rights to the correct PHY.
297 **/
298 static void e1000_release_phy_80003es2lan(struct e1000_hw *hw)
299 {
300 u16 mask;
301
302 mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM;
303 e1000_release_swfw_sync_80003es2lan(hw, mask);
304 }
305
306 /**
307 * e1000_acquire_mac_csr_80003es2lan - Acquire rights to access Kumeran register
308 * @hw: pointer to the HW structure
309 *
310 * Acquire the semaphore to access the Kumeran interface.
311 *
312 **/
313 static s32 e1000_acquire_mac_csr_80003es2lan(struct e1000_hw *hw)
314 {
315 u16 mask;
316
317 mask = E1000_SWFW_CSR_SM;
318
319 return e1000_acquire_swfw_sync_80003es2lan(hw, mask);
320 }
321
322 /**
323 * e1000_release_mac_csr_80003es2lan - Release rights to access Kumeran Register
324 * @hw: pointer to the HW structure
325 *
326 * Release the semaphore used to access the Kumeran interface
327 **/
328 static void e1000_release_mac_csr_80003es2lan(struct e1000_hw *hw)
329 {
330 u16 mask;
331
332 mask = E1000_SWFW_CSR_SM;
333
334 e1000_release_swfw_sync_80003es2lan(hw, mask);
335 }
336
337 /**
338 * e1000_acquire_nvm_80003es2lan - Acquire rights to access NVM
339 * @hw: pointer to the HW structure
340 *
341 * Acquire the semaphore to access the EEPROM.
342 **/
343 static s32 e1000_acquire_nvm_80003es2lan(struct e1000_hw *hw)
344 {
345 s32 ret_val;
346
347 ret_val = e1000_acquire_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
348 if (ret_val)
349 return ret_val;
350
351 ret_val = e1000e_acquire_nvm(hw);
352
353 if (ret_val)
354 e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
355
356 return ret_val;
357 }
358
359 /**
360 * e1000_release_nvm_80003es2lan - Relinquish rights to access NVM
361 * @hw: pointer to the HW structure
362 *
363 * Release the semaphore used to access the EEPROM.
364 **/
365 static void e1000_release_nvm_80003es2lan(struct e1000_hw *hw)
366 {
367 e1000e_release_nvm(hw);
368 e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM);
369 }
370
371 /**
372 * e1000_acquire_swfw_sync_80003es2lan - Acquire SW/FW semaphore
373 * @hw: pointer to the HW structure
374 * @mask: specifies which semaphore to acquire
375 *
376 * Acquire the SW/FW semaphore to access the PHY or NVM. The mask
377 * will also specify which port we're acquiring the lock for.
378 **/
379 static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
380 {
381 u32 swfw_sync;
382 u32 swmask = mask;
383 u32 fwmask = mask << 16;
384 s32 i = 0;
385 s32 timeout = 50;
386
387 while (i < timeout) {
388 if (e1000e_get_hw_semaphore(hw))
389 return -E1000_ERR_SWFW_SYNC;
390
391 swfw_sync = er32(SW_FW_SYNC);
392 if (!(swfw_sync & (fwmask | swmask)))
393 break;
394
395 /*
396 * Firmware currently using resource (fwmask)
397 * or other software thread using resource (swmask)
398 */
399 e1000e_put_hw_semaphore(hw);
400 mdelay(5);
401 i++;
402 }
403
404 if (i == timeout) {
405 e_dbg("Driver can't access resource, SW_FW_SYNC timeout.\n");
406 return -E1000_ERR_SWFW_SYNC;
407 }
408
409 swfw_sync |= swmask;
410 ew32(SW_FW_SYNC, swfw_sync);
411
412 e1000e_put_hw_semaphore(hw);
413
414 return 0;
415 }
416
417 /**
418 * e1000_release_swfw_sync_80003es2lan - Release SW/FW semaphore
419 * @hw: pointer to the HW structure
420 * @mask: specifies which semaphore to acquire
421 *
422 * Release the SW/FW semaphore used to access the PHY or NVM. The mask
423 * will also specify which port we're releasing the lock for.
424 **/
425 static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask)
426 {
427 u32 swfw_sync;
428
429 while (e1000e_get_hw_semaphore(hw) != 0)
430 ; /* Empty */
431
432 swfw_sync = er32(SW_FW_SYNC);
433 swfw_sync &= ~mask;
434 ew32(SW_FW_SYNC, swfw_sync);
435
436 e1000e_put_hw_semaphore(hw);
437 }
438
439 /**
440 * e1000_read_phy_reg_gg82563_80003es2lan - Read GG82563 PHY register
441 * @hw: pointer to the HW structure
442 * @offset: offset of the register to read
443 * @data: pointer to the data returned from the operation
444 *
445 * Read the GG82563 PHY register.
446 **/
447 static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
448 u32 offset, u16 *data)
449 {
450 s32 ret_val;
451 u32 page_select;
452 u16 temp;
453
454 ret_val = e1000_acquire_phy_80003es2lan(hw);
455 if (ret_val)
456 return ret_val;
457
458 /* Select Configuration Page */
459 if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
460 page_select = GG82563_PHY_PAGE_SELECT;
461 } else {
462 /*
463 * Use Alternative Page Select register to access
464 * registers 30 and 31
465 */
466 page_select = GG82563_PHY_PAGE_SELECT_ALT;
467 }
468
469 temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
470 ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
471 if (ret_val) {
472 e1000_release_phy_80003es2lan(hw);
473 return ret_val;
474 }
475
476 if (hw->dev_spec.e80003es2lan.mdic_wa_enable == true) {
477 /*
478 * The "ready" bit in the MDIC register may be incorrectly set
479 * before the device has completed the "Page Select" MDI
480 * transaction. So we wait 200us after each MDI command...
481 */
482 udelay(200);
483
484 /* ...and verify the command was successful. */
485 ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
486
487 if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
488 ret_val = -E1000_ERR_PHY;
489 e1000_release_phy_80003es2lan(hw);
490 return ret_val;
491 }
492
493 udelay(200);
494
495 ret_val = e1000e_read_phy_reg_mdic(hw,
496 MAX_PHY_REG_ADDRESS & offset,
497 data);
498
499 udelay(200);
500 } else {
501 ret_val = e1000e_read_phy_reg_mdic(hw,
502 MAX_PHY_REG_ADDRESS & offset,
503 data);
504 }
505
506 e1000_release_phy_80003es2lan(hw);
507
508 return ret_val;
509 }
510
511 /**
512 * e1000_write_phy_reg_gg82563_80003es2lan - Write GG82563 PHY register
513 * @hw: pointer to the HW structure
514 * @offset: offset of the register to read
515 * @data: value to write to the register
516 *
517 * Write to the GG82563 PHY register.
518 **/
519 static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw,
520 u32 offset, u16 data)
521 {
522 s32 ret_val;
523 u32 page_select;
524 u16 temp;
525
526 ret_val = e1000_acquire_phy_80003es2lan(hw);
527 if (ret_val)
528 return ret_val;
529
530 /* Select Configuration Page */
531 if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) {
532 page_select = GG82563_PHY_PAGE_SELECT;
533 } else {
534 /*
535 * Use Alternative Page Select register to access
536 * registers 30 and 31
537 */
538 page_select = GG82563_PHY_PAGE_SELECT_ALT;
539 }
540
541 temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT);
542 ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp);
543 if (ret_val) {
544 e1000_release_phy_80003es2lan(hw);
545 return ret_val;
546 }
547
548 if (hw->dev_spec.e80003es2lan.mdic_wa_enable == true) {
549 /*
550 * The "ready" bit in the MDIC register may be incorrectly set
551 * before the device has completed the "Page Select" MDI
552 * transaction. So we wait 200us after each MDI command...
553 */
554 udelay(200);
555
556 /* ...and verify the command was successful. */
557 ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp);
558
559 if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) {
560 e1000_release_phy_80003es2lan(hw);
561 return -E1000_ERR_PHY;
562 }
563
564 udelay(200);
565
566 ret_val = e1000e_write_phy_reg_mdic(hw,
567 MAX_PHY_REG_ADDRESS & offset,
568 data);
569
570 udelay(200);
571 } else {
572 ret_val = e1000e_write_phy_reg_mdic(hw,
573 MAX_PHY_REG_ADDRESS & offset,
574 data);
575 }
576
577 e1000_release_phy_80003es2lan(hw);
578
579 return ret_val;
580 }
581
582 /**
583 * e1000_write_nvm_80003es2lan - Write to ESB2 NVM
584 * @hw: pointer to the HW structure
585 * @offset: offset of the register to read
586 * @words: number of words to write
587 * @data: buffer of data to write to the NVM
588 *
589 * Write "words" of data to the ESB2 NVM.
590 **/
591 static s32 e1000_write_nvm_80003es2lan(struct e1000_hw *hw, u16 offset,
592 u16 words, u16 *data)
593 {
594 return e1000e_write_nvm_spi(hw, offset, words, data);
595 }
596
597 /**
598 * e1000_get_cfg_done_80003es2lan - Wait for configuration to complete
599 * @hw: pointer to the HW structure
600 *
601 * Wait a specific amount of time for manageability processes to complete.
602 * This is a function pointer entry point called by the phy module.
603 **/
604 static s32 e1000_get_cfg_done_80003es2lan(struct e1000_hw *hw)
605 {
606 s32 timeout = PHY_CFG_TIMEOUT;
607 u32 mask = E1000_NVM_CFG_DONE_PORT_0;
608
609 if (hw->bus.func == 1)
610 mask = E1000_NVM_CFG_DONE_PORT_1;
611
612 while (timeout) {
613 if (er32(EEMNGCTL) & mask)
614 break;
615 msleep(1);
616 timeout--;
617 }
618 if (!timeout) {
619 e_dbg("MNG configuration cycle has not completed.\n");
620 return -E1000_ERR_RESET;
621 }
622
623 return 0;
624 }
625
626 /**
627 * e1000_phy_force_speed_duplex_80003es2lan - Force PHY speed and duplex
628 * @hw: pointer to the HW structure
629 *
630 * Force the speed and duplex settings onto the PHY. This is a
631 * function pointer entry point called by the phy module.
632 **/
633 static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw)
634 {
635 s32 ret_val;
636 u16 phy_data;
637 bool link;
638
639 /*
640 * Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI
641 * forced whenever speed and duplex are forced.
642 */
643 ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
644 if (ret_val)
645 return ret_val;
646
647 phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_AUTO;
648 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, phy_data);
649 if (ret_val)
650 return ret_val;
651
652 e_dbg("GG82563 PSCR: %X\n", phy_data);
653
654 ret_val = e1e_rphy(hw, PHY_CONTROL, &phy_data);
655 if (ret_val)
656 return ret_val;
657
658 e1000e_phy_force_speed_duplex_setup(hw, &phy_data);
659
660 /* Reset the phy to commit changes. */
661 phy_data |= MII_CR_RESET;
662
663 ret_val = e1e_wphy(hw, PHY_CONTROL, phy_data);
664 if (ret_val)
665 return ret_val;
666
667 udelay(1);
668
669 if (hw->phy.autoneg_wait_to_complete) {
670 e_dbg("Waiting for forced speed/duplex link "
671 "on GG82563 phy.\n");
672
673 ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
674 100000, &link);
675 if (ret_val)
676 return ret_val;
677
678 if (!link) {
679 /*
680 * We didn't get link.
681 * Reset the DSP and cross our fingers.
682 */
683 ret_val = e1000e_phy_reset_dsp(hw);
684 if (ret_val)
685 return ret_val;
686 }
687
688 /* Try once more */
689 ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT,
690 100000, &link);
691 if (ret_val)
692 return ret_val;
693 }
694
695 ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data);
696 if (ret_val)
697 return ret_val;
698
699 /*
700 * Resetting the phy means we need to verify the TX_CLK corresponds
701 * to the link speed. 10Mbps -> 2.5MHz, else 25MHz.
702 */
703 phy_data &= ~GG82563_MSCR_TX_CLK_MASK;
704 if (hw->mac.forced_speed_duplex & E1000_ALL_10_SPEED)
705 phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5;
706 else
707 phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25;
708
709 /*
710 * In addition, we must re-enable CRS on Tx for both half and full
711 * duplex.
712 */
713 phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
714 ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data);
715
716 return ret_val;
717 }
718
719 /**
720 * e1000_get_cable_length_80003es2lan - Set approximate cable length
721 * @hw: pointer to the HW structure
722 *
723 * Find the approximate cable length as measured by the GG82563 PHY.
724 * This is a function pointer entry point called by the phy module.
725 **/
726 static s32 e1000_get_cable_length_80003es2lan(struct e1000_hw *hw)
727 {
728 struct e1000_phy_info *phy = &hw->phy;
729 s32 ret_val = 0;
730 u16 phy_data, index;
731
732 ret_val = e1e_rphy(hw, GG82563_PHY_DSP_DISTANCE, &phy_data);
733 if (ret_val)
734 goto out;
735
736 index = phy_data & GG82563_DSPD_CABLE_LENGTH;
737
738 if (index >= GG82563_CABLE_LENGTH_TABLE_SIZE - 5) {
739 ret_val = -E1000_ERR_PHY;
740 goto out;
741 }
742
743 phy->min_cable_length = e1000_gg82563_cable_length_table[index];
744 phy->max_cable_length = e1000_gg82563_cable_length_table[index + 5];
745
746 phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2;
747
748 out:
749 return ret_val;
750 }
751
752 /**
753 * e1000_get_link_up_info_80003es2lan - Report speed and duplex
754 * @hw: pointer to the HW structure
755 * @speed: pointer to speed buffer
756 * @duplex: pointer to duplex buffer
757 *
758 * Retrieve the current speed and duplex configuration.
759 **/
760 static s32 e1000_get_link_up_info_80003es2lan(struct e1000_hw *hw, u16 *speed,
761 u16 *duplex)
762 {
763 s32 ret_val;
764
765 if (hw->phy.media_type == e1000_media_type_copper) {
766 ret_val = e1000e_get_speed_and_duplex_copper(hw,
767 speed,
768 duplex);
769 hw->phy.ops.cfg_on_link_up(hw);
770 } else {
771 ret_val = e1000e_get_speed_and_duplex_fiber_serdes(hw,
772 speed,
773 duplex);
774 }
775
776 return ret_val;
777 }
778
779 /**
780 * e1000_reset_hw_80003es2lan - Reset the ESB2 controller
781 * @hw: pointer to the HW structure
782 *
783 * Perform a global reset to the ESB2 controller.
784 **/
785 static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw)
786 {
787 u32 ctrl;
788 s32 ret_val;
789
790 /*
791 * Prevent the PCI-E bus from sticking if there is no TLP connection
792 * on the last TLP read/write transaction when MAC is reset.
793 */
794 ret_val = e1000e_disable_pcie_master(hw);
795 if (ret_val)
796 e_dbg("PCI-E Master disable polling has failed.\n");
797
798 e_dbg("Masking off all interrupts\n");
799 ew32(IMC, 0xffffffff);
800
801 ew32(RCTL, 0);
802 ew32(TCTL, E1000_TCTL_PSP);
803 e1e_flush();
804
805 msleep(10);
806
807 ctrl = er32(CTRL);
808
809 ret_val = e1000_acquire_phy_80003es2lan(hw);
810 e_dbg("Issuing a global reset to MAC\n");
811 ew32(CTRL, ctrl | E1000_CTRL_RST);
812 e1000_release_phy_80003es2lan(hw);
813
814 ret_val = e1000e_get_auto_rd_done(hw);
815 if (ret_val)
816 /* We don't want to continue accessing MAC registers. */
817 return ret_val;
818
819 /* Clear any pending interrupt events. */
820 ew32(IMC, 0xffffffff);
821 er32(ICR);
822
823 ret_val = e1000_check_alt_mac_addr_generic(hw);
824
825 return ret_val;
826 }
827
828 /**
829 * e1000_init_hw_80003es2lan - Initialize the ESB2 controller
830 * @hw: pointer to the HW structure
831 *
832 * Initialize the hw bits, LED, VFTA, MTA, link and hw counters.
833 **/
834 static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw)
835 {
836 struct e1000_mac_info *mac = &hw->mac;
837 u32 reg_data;
838 s32 ret_val;
839 u16 i;
840
841 e1000_initialize_hw_bits_80003es2lan(hw);
842
843 /* Initialize identification LED */
844 ret_val = e1000e_id_led_init(hw);
845 if (ret_val)
846 e_dbg("Error initializing identification LED\n");
847 /* This is not fatal and we should not stop init due to this */
848
849 /* Disabling VLAN filtering */
850 e_dbg("Initializing the IEEE VLAN\n");
851 mac->ops.clear_vfta(hw);
852
853 /* Setup the receive address. */
854 e1000e_init_rx_addrs(hw, mac->rar_entry_count);
855
856 /* Zero out the Multicast HASH table */
857 e_dbg("Zeroing the MTA\n");
858 for (i = 0; i < mac->mta_reg_count; i++)
859 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
860
861 /* Setup link and flow control */
862 ret_val = e1000e_setup_link(hw);
863
864 /* Set the transmit descriptor write-back policy */
865 reg_data = er32(TXDCTL(0));
866 reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
867 E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC;
868 ew32(TXDCTL(0), reg_data);
869
870 /* ...for both queues. */
871 reg_data = er32(TXDCTL(1));
872 reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) |
873 E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC;
874 ew32(TXDCTL(1), reg_data);
875
876 /* Enable retransmit on late collisions */
877 reg_data = er32(TCTL);
878 reg_data |= E1000_TCTL_RTLC;
879 ew32(TCTL, reg_data);
880
881 /* Configure Gigabit Carry Extend Padding */
882 reg_data = er32(TCTL_EXT);
883 reg_data &= ~E1000_TCTL_EXT_GCEX_MASK;
884 reg_data |= DEFAULT_TCTL_EXT_GCEX_80003ES2LAN;
885 ew32(TCTL_EXT, reg_data);
886
887 /* Configure Transmit Inter-Packet Gap */
888 reg_data = er32(TIPG);
889 reg_data &= ~E1000_TIPG_IPGT_MASK;
890 reg_data |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
891 ew32(TIPG, reg_data);
892
893 reg_data = E1000_READ_REG_ARRAY(hw, E1000_FFLT, 0x0001);
894 reg_data &= ~0x00100000;
895 E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data);
896
897 /* default to true to enable the MDIC W/A */
898 hw->dev_spec.e80003es2lan.mdic_wa_enable = true;
899
900 ret_val = e1000_read_kmrn_reg_80003es2lan(hw,
901 E1000_KMRNCTRLSTA_OFFSET >>
902 E1000_KMRNCTRLSTA_OFFSET_SHIFT,
903 &i);
904 if (!ret_val) {
905 if ((i & E1000_KMRNCTRLSTA_OPMODE_MASK) ==
906 E1000_KMRNCTRLSTA_OPMODE_INBAND_MDIO)
907 hw->dev_spec.e80003es2lan.mdic_wa_enable = false;
908 }
909
910 /*
911 * Clear all of the statistics registers (clear on read). It is
912 * important that we do this after we have tried to establish link
913 * because the symbol error count will increment wildly if there
914 * is no link.
915 */
916 e1000_clear_hw_cntrs_80003es2lan(hw);
917
918 return ret_val;
919 }
920
921 /**
922 * e1000_initialize_hw_bits_80003es2lan - Init hw bits of ESB2
923 * @hw: pointer to the HW structure
924 *
925 * Initializes required hardware-dependent bits needed for normal operation.
926 **/
927 static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw)
928 {
929 u32 reg;
930
931 /* Transmit Descriptor Control 0 */
932 reg = er32(TXDCTL(0));
933 reg |= (1 << 22);
934 ew32(TXDCTL(0), reg);
935
936 /* Transmit Descriptor Control 1 */
937 reg = er32(TXDCTL(1));
938 reg |= (1 << 22);
939 ew32(TXDCTL(1), reg);
940
941 /* Transmit Arbitration Control 0 */
942 reg = er32(TARC(0));
943 reg &= ~(0xF << 27); /* 30:27 */
944 if (hw->phy.media_type != e1000_media_type_copper)
945 reg &= ~(1 << 20);
946 ew32(TARC(0), reg);
947
948 /* Transmit Arbitration Control 1 */
949 reg = er32(TARC(1));
950 if (er32(TCTL) & E1000_TCTL_MULR)
951 reg &= ~(1 << 28);
952 else
953 reg |= (1 << 28);
954 ew32(TARC(1), reg);
955 }
956
957 /**
958 * e1000_copper_link_setup_gg82563_80003es2lan - Configure GG82563 Link
959 * @hw: pointer to the HW structure
960 *
961 * Setup some GG82563 PHY registers for obtaining link
962 **/
963 static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw)
964 {
965 struct e1000_phy_info *phy = &hw->phy;
966 s32 ret_val;
967 u32 ctrl_ext;
968 u16 data;
969
970 ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &data);
971 if (ret_val)
972 return ret_val;
973
974 data |= GG82563_MSCR_ASSERT_CRS_ON_TX;
975 /* Use 25MHz for both link down and 1000Base-T for Tx clock. */
976 data |= GG82563_MSCR_TX_CLK_1000MBPS_25;
977
978 ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, data);
979 if (ret_val)
980 return ret_val;
981
982 /*
983 * Options:
984 * MDI/MDI-X = 0 (default)
985 * 0 - Auto for all speeds
986 * 1 - MDI mode
987 * 2 - MDI-X mode
988 * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
989 */
990 ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL, &data);
991 if (ret_val)
992 return ret_val;
993
994 data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK;
995
996 switch (phy->mdix) {
997 case 1:
998 data |= GG82563_PSCR_CROSSOVER_MODE_MDI;
999 break;
1000 case 2:
1001 data |= GG82563_PSCR_CROSSOVER_MODE_MDIX;
1002 break;
1003 case 0:
1004 default:
1005 data |= GG82563_PSCR_CROSSOVER_MODE_AUTO;
1006 break;
1007 }
1008
1009 /*
1010 * Options:
1011 * disable_polarity_correction = 0 (default)
1012 * Automatic Correction for Reversed Cable Polarity
1013 * 0 - Disabled
1014 * 1 - Enabled
1015 */
1016 data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
1017 if (phy->disable_polarity_correction)
1018 data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE;
1019
1020 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, data);
1021 if (ret_val)
1022 return ret_val;
1023
1024 /* SW Reset the PHY so all changes take effect */
1025 ret_val = e1000e_commit_phy(hw);
1026 if (ret_val) {
1027 e_dbg("Error Resetting the PHY\n");
1028 return ret_val;
1029 }
1030
1031 /* Bypass Rx and Tx FIFO's */
1032 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1033 E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL,
1034 E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS |
1035 E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS);
1036 if (ret_val)
1037 return ret_val;
1038
1039 ret_val = e1000_read_kmrn_reg_80003es2lan(hw,
1040 E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE,
1041 &data);
1042 if (ret_val)
1043 return ret_val;
1044 data |= E1000_KMRNCTRLSTA_OPMODE_E_IDLE;
1045 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1046 E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE,
1047 data);
1048 if (ret_val)
1049 return ret_val;
1050
1051 ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL_2, &data);
1052 if (ret_val)
1053 return ret_val;
1054
1055 data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG;
1056 ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL_2, data);
1057 if (ret_val)
1058 return ret_val;
1059
1060 ctrl_ext = er32(CTRL_EXT);
1061 ctrl_ext &= ~(E1000_CTRL_EXT_LINK_MODE_MASK);
1062 ew32(CTRL_EXT, ctrl_ext);
1063
1064 ret_val = e1e_rphy(hw, GG82563_PHY_PWR_MGMT_CTRL, &data);
1065 if (ret_val)
1066 return ret_val;
1067
1068 /*
1069 * Do not init these registers when the HW is in IAMT mode, since the
1070 * firmware will have already initialized them. We only initialize
1071 * them if the HW is not in IAMT mode.
1072 */
1073 if (!e1000e_check_mng_mode(hw)) {
1074 /* Enable Electrical Idle on the PHY */
1075 data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE;
1076 ret_val = e1e_wphy(hw, GG82563_PHY_PWR_MGMT_CTRL, data);
1077 if (ret_val)
1078 return ret_val;
1079
1080 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &data);
1081 if (ret_val)
1082 return ret_val;
1083
1084 data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1085 ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data);
1086 if (ret_val)
1087 return ret_val;
1088 }
1089
1090 /*
1091 * Workaround: Disable padding in Kumeran interface in the MAC
1092 * and in the PHY to avoid CRC errors.
1093 */
1094 ret_val = e1e_rphy(hw, GG82563_PHY_INBAND_CTRL, &data);
1095 if (ret_val)
1096 return ret_val;
1097
1098 data |= GG82563_ICR_DIS_PADDING;
1099 ret_val = e1e_wphy(hw, GG82563_PHY_INBAND_CTRL, data);
1100 if (ret_val)
1101 return ret_val;
1102
1103 return 0;
1104 }
1105
1106 /**
1107 * e1000_setup_copper_link_80003es2lan - Setup Copper Link for ESB2
1108 * @hw: pointer to the HW structure
1109 *
1110 * Essentially a wrapper for setting up all things "copper" related.
1111 * This is a function pointer entry point called by the mac module.
1112 **/
1113 static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw)
1114 {
1115 u32 ctrl;
1116 s32 ret_val;
1117 u16 reg_data;
1118
1119 ctrl = er32(CTRL);
1120 ctrl |= E1000_CTRL_SLU;
1121 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
1122 ew32(CTRL, ctrl);
1123
1124 /*
1125 * Set the mac to wait the maximum time between each
1126 * iteration and increase the max iterations when
1127 * polling the phy; this fixes erroneous timeouts at 10Mbps.
1128 */
1129 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 4),
1130 0xFFFF);
1131 if (ret_val)
1132 return ret_val;
1133 ret_val = e1000_read_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
1134 &reg_data);
1135 if (ret_val)
1136 return ret_val;
1137 reg_data |= 0x3F;
1138 ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9),
1139 reg_data);
1140 if (ret_val)
1141 return ret_val;
1142 ret_val = e1000_read_kmrn_reg_80003es2lan(hw,
1143 E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
1144 &reg_data);
1145 if (ret_val)
1146 return ret_val;
1147 reg_data |= E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING;
1148 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1149 E1000_KMRNCTRLSTA_OFFSET_INB_CTRL,
1150 reg_data);
1151 if (ret_val)
1152 return ret_val;
1153
1154 ret_val = e1000_copper_link_setup_gg82563_80003es2lan(hw);
1155 if (ret_val)
1156 return ret_val;
1157
1158 ret_val = e1000e_setup_copper_link(hw);
1159
1160 return 0;
1161 }
1162
1163 /**
1164 * e1000_cfg_on_link_up_80003es2lan - es2 link configuration after link-up
1165 * @hw: pointer to the HW structure
1166 * @duplex: current duplex setting
1167 *
1168 * Configure the KMRN interface by applying last minute quirks for
1169 * 10/100 operation.
1170 **/
1171 static s32 e1000_cfg_on_link_up_80003es2lan(struct e1000_hw *hw)
1172 {
1173 s32 ret_val = 0;
1174 u16 speed;
1175 u16 duplex;
1176
1177 if (hw->phy.media_type == e1000_media_type_copper) {
1178 ret_val = e1000e_get_speed_and_duplex_copper(hw, &speed,
1179 &duplex);
1180 if (ret_val)
1181 return ret_val;
1182
1183 if (speed == SPEED_1000)
1184 ret_val = e1000_cfg_kmrn_1000_80003es2lan(hw);
1185 else
1186 ret_val = e1000_cfg_kmrn_10_100_80003es2lan(hw, duplex);
1187 }
1188
1189 return ret_val;
1190 }
1191
1192 /**
1193 * e1000_cfg_kmrn_10_100_80003es2lan - Apply "quirks" for 10/100 operation
1194 * @hw: pointer to the HW structure
1195 * @duplex: current duplex setting
1196 *
1197 * Configure the KMRN interface by applying last minute quirks for
1198 * 10/100 operation.
1199 **/
1200 static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex)
1201 {
1202 s32 ret_val;
1203 u32 tipg;
1204 u32 i = 0;
1205 u16 reg_data, reg_data2;
1206
1207 reg_data = E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT;
1208 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1209 E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
1210 reg_data);
1211 if (ret_val)
1212 return ret_val;
1213
1214 /* Configure Transmit Inter-Packet Gap */
1215 tipg = er32(TIPG);
1216 tipg &= ~E1000_TIPG_IPGT_MASK;
1217 tipg |= DEFAULT_TIPG_IPGT_10_100_80003ES2LAN;
1218 ew32(TIPG, tipg);
1219
1220 do {
1221 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data);
1222 if (ret_val)
1223 return ret_val;
1224
1225 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data2);
1226 if (ret_val)
1227 return ret_val;
1228 i++;
1229 } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
1230
1231 if (duplex == HALF_DUPLEX)
1232 reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER;
1233 else
1234 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1235
1236 ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
1237
1238 return 0;
1239 }
1240
1241 /**
1242 * e1000_cfg_kmrn_1000_80003es2lan - Apply "quirks" for gigabit operation
1243 * @hw: pointer to the HW structure
1244 *
1245 * Configure the KMRN interface by applying last minute quirks for
1246 * gigabit operation.
1247 **/
1248 static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw)
1249 {
1250 s32 ret_val;
1251 u16 reg_data, reg_data2;
1252 u32 tipg;
1253 u32 i = 0;
1254
1255 reg_data = E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT;
1256 ret_val = e1000_write_kmrn_reg_80003es2lan(hw,
1257 E1000_KMRNCTRLSTA_OFFSET_HD_CTRL,
1258 reg_data);
1259 if (ret_val)
1260 return ret_val;
1261
1262 /* Configure Transmit Inter-Packet Gap */
1263 tipg = er32(TIPG);
1264 tipg &= ~E1000_TIPG_IPGT_MASK;
1265 tipg |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN;
1266 ew32(TIPG, tipg);
1267
1268 do {
1269 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data);
1270 if (ret_val)
1271 return ret_val;
1272
1273 ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &reg_data2);
1274 if (ret_val)
1275 return ret_val;
1276 i++;
1277 } while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY));
1278
1279 reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER;
1280 ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data);
1281
1282 return ret_val;
1283 }
1284
1285 /**
1286 * e1000_read_kmrn_reg_80003es2lan - Read kumeran register
1287 * @hw: pointer to the HW structure
1288 * @offset: register offset to be read
1289 * @data: pointer to the read data
1290 *
1291 * Acquire semaphore, then read the PHY register at offset
1292 * using the kumeran interface. The information retrieved is stored in data.
1293 * Release the semaphore before exiting.
1294 **/
1295 static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
1296 u16 *data)
1297 {
1298 u32 kmrnctrlsta;
1299 s32 ret_val = 0;
1300
1301 ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
1302 if (ret_val)
1303 return ret_val;
1304
1305 kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
1306 E1000_KMRNCTRLSTA_OFFSET) | E1000_KMRNCTRLSTA_REN;
1307 ew32(KMRNCTRLSTA, kmrnctrlsta);
1308
1309 udelay(2);
1310
1311 kmrnctrlsta = er32(KMRNCTRLSTA);
1312 *data = (u16)kmrnctrlsta;
1313
1314 e1000_release_mac_csr_80003es2lan(hw);
1315
1316 return ret_val;
1317 }
1318
1319 /**
1320 * e1000_write_kmrn_reg_80003es2lan - Write kumeran register
1321 * @hw: pointer to the HW structure
1322 * @offset: register offset to write to
1323 * @data: data to write at register offset
1324 *
1325 * Acquire semaphore, then write the data to PHY register
1326 * at the offset using the kumeran interface. Release semaphore
1327 * before exiting.
1328 **/
1329 static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset,
1330 u16 data)
1331 {
1332 u32 kmrnctrlsta;
1333 s32 ret_val = 0;
1334
1335 ret_val = e1000_acquire_mac_csr_80003es2lan(hw);
1336 if (ret_val)
1337 return ret_val;
1338
1339 kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) &
1340 E1000_KMRNCTRLSTA_OFFSET) | data;
1341 ew32(KMRNCTRLSTA, kmrnctrlsta);
1342
1343 udelay(2);
1344
1345 e1000_release_mac_csr_80003es2lan(hw);
1346
1347 return ret_val;
1348 }
1349
1350 /**
1351 * e1000_read_mac_addr_80003es2lan - Read device MAC address
1352 * @hw: pointer to the HW structure
1353 **/
1354 static s32 e1000_read_mac_addr_80003es2lan(struct e1000_hw *hw)
1355 {
1356 s32 ret_val = 0;
1357
1358 /*
1359 * If there's an alternate MAC address place it in RAR0
1360 * so that it will override the Si installed default perm
1361 * address.
1362 */
1363 ret_val = e1000_check_alt_mac_addr_generic(hw);
1364 if (ret_val)
1365 goto out;
1366
1367 ret_val = e1000_read_mac_addr_generic(hw);
1368
1369 out:
1370 return ret_val;
1371 }
1372
1373 /**
1374 * e1000_power_down_phy_copper_80003es2lan - Remove link during PHY power down
1375 * @hw: pointer to the HW structure
1376 *
1377 * In the case of a PHY power down to save power, or to turn off link during a
1378 * driver unload, or wake on lan is not enabled, remove the link.
1379 **/
1380 static void e1000_power_down_phy_copper_80003es2lan(struct e1000_hw *hw)
1381 {
1382 /* If the management interface is not enabled, then power down */
1383 if (!(hw->mac.ops.check_mng_mode(hw) ||
1384 hw->phy.ops.check_reset_block(hw)))
1385 e1000_power_down_phy_copper(hw);
1386 }
1387
1388 /**
1389 * e1000_clear_hw_cntrs_80003es2lan - Clear device specific hardware counters
1390 * @hw: pointer to the HW structure
1391 *
1392 * Clears the hardware counters by reading the counter registers.
1393 **/
1394 static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw)
1395 {
1396 e1000e_clear_hw_cntrs_base(hw);
1397
1398 er32(PRC64);
1399 er32(PRC127);
1400 er32(PRC255);
1401 er32(PRC511);
1402 er32(PRC1023);
1403 er32(PRC1522);
1404 er32(PTC64);
1405 er32(PTC127);
1406 er32(PTC255);
1407 er32(PTC511);
1408 er32(PTC1023);
1409 er32(PTC1522);
1410
1411 er32(ALGNERRC);
1412 er32(RXERRC);
1413 er32(TNCRS);
1414 er32(CEXTERR);
1415 er32(TSCTC);
1416 er32(TSCTFC);
1417
1418 er32(MGTPRC);
1419 er32(MGTPDC);
1420 er32(MGTPTC);
1421
1422 er32(IAC);
1423 er32(ICRXOC);
1424
1425 er32(ICRXPTC);
1426 er32(ICRXATC);
1427 er32(ICTXPTC);
1428 er32(ICTXATC);
1429 er32(ICTXQEC);
1430 er32(ICTXQMTC);
1431 er32(ICRXDMTC);
1432 }
1433
1434 static struct e1000_mac_operations es2_mac_ops = {
1435 .read_mac_addr = e1000_read_mac_addr_80003es2lan,
1436 .id_led_init = e1000e_id_led_init,
1437 .check_mng_mode = e1000e_check_mng_mode_generic,
1438 /* check_for_link dependent on media type */
1439 .cleanup_led = e1000e_cleanup_led_generic,
1440 .clear_hw_cntrs = e1000_clear_hw_cntrs_80003es2lan,
1441 .get_bus_info = e1000e_get_bus_info_pcie,
1442 .set_lan_id = e1000_set_lan_id_multi_port_pcie,
1443 .get_link_up_info = e1000_get_link_up_info_80003es2lan,
1444 .led_on = e1000e_led_on_generic,
1445 .led_off = e1000e_led_off_generic,
1446 .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
1447 .write_vfta = e1000_write_vfta_generic,
1448 .clear_vfta = e1000_clear_vfta_generic,
1449 .reset_hw = e1000_reset_hw_80003es2lan,
1450 .init_hw = e1000_init_hw_80003es2lan,
1451 .setup_link = e1000e_setup_link,
1452 /* setup_physical_interface dependent on media type */
1453 .setup_led = e1000e_setup_led_generic,
1454 };
1455
1456 static struct e1000_phy_operations es2_phy_ops = {
1457 .acquire = e1000_acquire_phy_80003es2lan,
1458 .check_polarity = e1000_check_polarity_m88,
1459 .check_reset_block = e1000e_check_reset_block_generic,
1460 .commit = e1000e_phy_sw_reset,
1461 .force_speed_duplex = e1000_phy_force_speed_duplex_80003es2lan,
1462 .get_cfg_done = e1000_get_cfg_done_80003es2lan,
1463 .get_cable_length = e1000_get_cable_length_80003es2lan,
1464 .get_info = e1000e_get_phy_info_m88,
1465 .read_reg = e1000_read_phy_reg_gg82563_80003es2lan,
1466 .release = e1000_release_phy_80003es2lan,
1467 .reset = e1000e_phy_hw_reset_generic,
1468 .set_d0_lplu_state = NULL,
1469 .set_d3_lplu_state = e1000e_set_d3_lplu_state,
1470 .write_reg = e1000_write_phy_reg_gg82563_80003es2lan,
1471 .cfg_on_link_up = e1000_cfg_on_link_up_80003es2lan,
1472 };
1473
1474 static struct e1000_nvm_operations es2_nvm_ops = {
1475 .acquire = e1000_acquire_nvm_80003es2lan,
1476 .read = e1000e_read_nvm_eerd,
1477 .release = e1000_release_nvm_80003es2lan,
1478 .update = e1000e_update_nvm_checksum_generic,
1479 .valid_led_default = e1000e_valid_led_default,
1480 .validate = e1000e_validate_nvm_checksum_generic,
1481 .write = e1000_write_nvm_80003es2lan,
1482 };
1483
1484 struct e1000_info e1000_es2_info = {
1485 .mac = e1000_80003es2lan,
1486 .flags = FLAG_HAS_HW_VLAN_FILTER
1487 | FLAG_HAS_JUMBO_FRAMES
1488 | FLAG_HAS_WOL
1489 | FLAG_APME_IN_CTRL3
1490 | FLAG_RX_CSUM_ENABLED
1491 | FLAG_HAS_CTRLEXT_ON_LOAD
1492 | FLAG_RX_NEEDS_RESTART /* errata */
1493 | FLAG_TARC_SET_BIT_ZERO /* errata */
1494 | FLAG_APME_CHECK_PORT_B
1495 | FLAG_DISABLE_FC_PAUSE_TIME /* errata */
1496 | FLAG_TIPG_MEDIUM_FOR_80003ESLAN,
1497 .flags2 = FLAG2_DMA_BURST,
1498 .pba = 38,
1499 .max_hw_frame_size = DEFAULT_JUMBO,
1500 .get_variants = e1000_get_variants_80003es2lan,
1501 .mac_ops = &es2_mac_ops,
1502 .phy_ops = &es2_phy_ops,
1503 .nvm_ops = &es2_nvm_ops,
1504 };
1505
linux-next