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)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 | **/ |
114 | static 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 | |
151 | static 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 | **/ |
177 | static 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 | **/ |
191 | static 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 | **/ |
206 | static 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 | **/ |
221 | static 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 | **/ |
236 | static 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 | **/ |
258 | static 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 | **/ |
272 | static 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 | **/ |
317 | static 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 | **/ |
339 | static 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, offset: page_select, data: 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(min: 200, max: 400); |
373 | |
374 | /* ...and verify the command was successful. */ |
375 | ret_val = e1000e_read_phy_reg_mdic(hw, offset: page_select, data: &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(min: 200, max: 400); |
383 | |
384 | ret_val = e1000e_read_phy_reg_mdic(hw, |
385 | MAX_PHY_REG_ADDRESS & offset, |
386 | data); |
387 | |
388 | usleep_range(min: 200, max: 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 | **/ |
408 | static 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, offset: page_select, data: 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(min: 200, max: 400); |
442 | |
443 | /* ...and verify the command was successful. */ |
444 | ret_val = e1000e_read_phy_reg_mdic(hw, offset: page_select, data: &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(min: 200, max: 400); |
452 | |
453 | ret_val = e1000e_write_phy_reg_mdic(hw, |
454 | MAX_PHY_REG_ADDRESS & |
455 | offset, data); |
456 | |
457 | usleep_range(min: 200, max: 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 | **/ |
478 | static 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 | **/ |
491 | static 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(min: 1000, max: 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 | **/ |
520 | static 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, data: &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, data: 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, data: &phy_data); |
541 | if (ret_val) |
542 | return ret_val; |
543 | |
544 | e1000e_phy_force_speed_duplex_setup(hw, phy_ctrl: &phy_data); |
545 | |
546 | /* Reset the phy to commit changes. */ |
547 | phy_data |= BMCR_RESET; |
548 | |
549 | ret_val = e1e_wphy(hw, MII_BMCR, data: 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 | usec_interval: 100000, success: &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 | usec_interval: 100000, success: &link); |
575 | if (ret_val) |
576 | return ret_val; |
577 | } |
578 | |
579 | ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, data: &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, data: 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 | **/ |
608 | static 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, data: &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 | **/ |
639 | static 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 | **/ |
662 | static 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(min: 10000, max: 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 | data: &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 | data: 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 | **/ |
727 | static 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, rar_count: 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 | data: &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 | data: 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, data: &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 | **/ |
836 | static 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 | **/ |
879 | static 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: &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: &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, offset: 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, offset: reg, data: &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, offset: reg, data); |
959 | if (ret_val) |
960 | return ret_val; |
961 | |
962 | ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL_2, data: &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: &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: &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: &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 | **/ |
1022 | static 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, offset: 4, data: 0xFFFF); |
1042 | if (ret_val) |
1043 | return ret_val; |
1044 | ret_val = e1000_read_kmrn_reg_80003es2lan(hw, offset: 9, data: ®_data); |
1045 | if (ret_val) |
1046 | return ret_val; |
1047 | reg_data |= 0x3F; |
1048 | ret_val = e1000_write_kmrn_reg_80003es2lan(hw, offset: 9, data: 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: ®_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 | data: 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: &speed, |
1087 | duplex: &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 | data: 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: ®_data); |
1131 | if (ret_val) |
1132 | return ret_val; |
1133 | |
1134 | ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data: ®_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, data: 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 | data: 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: ®_data); |
1178 | if (ret_val) |
1179 | return ret_val; |
1180 | |
1181 | ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data: ®_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, data: 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 = 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 | **/ |
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 = 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 | **/ |
1262 | static 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 | **/ |
1284 | static 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 | **/ |
1298 | static 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 | |
1338 | static 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 | |
1364 | static 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 | |
1382 | static 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 | |
1393 | const 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 | }; |
1412 | |