1 /*******************************************************************************
3 Copyright (c) 2001-2012, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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32 ***************************************************************************/
34 /* 82562G 10/100 Network Connection
35 * 82562G-2 10/100 Network Connection
36 * 82562GT 10/100 Network Connection
37 * 82562GT-2 10/100 Network Connection
38 * 82562V 10/100 Network Connection
39 * 82562V-2 10/100 Network Connection
40 * 82566DC-2 Gigabit Network Connection
41 * 82566DC Gigabit Network Connection
42 * 82566DM-2 Gigabit Network Connection
43 * 82566DM Gigabit Network Connection
44 * 82566MC Gigabit Network Connection
45 * 82566MM Gigabit Network Connection
46 * 82567LM Gigabit Network Connection
47 * 82567LF Gigabit Network Connection
48 * 82567V Gigabit Network Connection
49 * 82567LM-2 Gigabit Network Connection
50 * 82567LF-2 Gigabit Network Connection
51 * 82567V-2 Gigabit Network Connection
52 * 82567LF-3 Gigabit Network Connection
53 * 82567LM-3 Gigabit Network Connection
54 * 82567LM-4 Gigabit Network Connection
55 * 82577LM Gigabit Network Connection
56 * 82577LC Gigabit Network Connection
57 * 82578DM Gigabit Network Connection
58 * 82578DC Gigabit Network Connection
59 * 82579LM Gigabit Network Connection
60 * 82579V Gigabit Network Connection
61 * Ethernet Connection I217-LM
62 * Ethernet Connection I217-V
63 * Ethernet Connection I218-V
64 * Ethernet Connection I218-LM
67 #include "e1000_api.h"
69 STATIC s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state);
70 STATIC s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw);
71 STATIC void e1000_release_swflag_ich8lan(struct e1000_hw *hw);
72 STATIC s32 e1000_acquire_nvm_ich8lan(struct e1000_hw *hw);
73 STATIC void e1000_release_nvm_ich8lan(struct e1000_hw *hw);
74 STATIC bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw);
75 STATIC bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw);
76 STATIC void e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index);
77 STATIC void e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index);
78 STATIC s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw);
79 #ifndef NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT
80 STATIC void e1000_update_mc_addr_list_pch2lan(struct e1000_hw *hw,
83 #endif /* NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT */
84 STATIC s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw);
85 STATIC s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw);
86 STATIC s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active);
87 STATIC s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw,
89 STATIC s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw,
91 STATIC s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset,
92 u16 words, u16 *data);
93 STATIC s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset,
94 u16 words, u16 *data);
95 STATIC s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw);
96 STATIC s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw);
97 STATIC s32 e1000_valid_led_default_ich8lan(struct e1000_hw *hw,
99 STATIC s32 e1000_id_led_init_pchlan(struct e1000_hw *hw);
100 STATIC s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw);
101 STATIC s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw);
102 STATIC s32 e1000_init_hw_ich8lan(struct e1000_hw *hw);
103 STATIC s32 e1000_setup_link_ich8lan(struct e1000_hw *hw);
104 STATIC s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw);
105 STATIC s32 e1000_setup_copper_link_pch_lpt(struct e1000_hw *hw);
106 STATIC s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw,
107 u16 *speed, u16 *duplex);
108 STATIC s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw);
109 STATIC s32 e1000_led_on_ich8lan(struct e1000_hw *hw);
110 STATIC s32 e1000_led_off_ich8lan(struct e1000_hw *hw);
111 STATIC s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link);
112 STATIC s32 e1000_setup_led_pchlan(struct e1000_hw *hw);
113 STATIC s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw);
114 STATIC s32 e1000_led_on_pchlan(struct e1000_hw *hw);
115 STATIC s32 e1000_led_off_pchlan(struct e1000_hw *hw);
116 STATIC void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw);
117 STATIC s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank);
118 STATIC void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw);
119 STATIC s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw);
120 STATIC s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw,
121 u32 offset, u8 *data);
122 STATIC s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
124 STATIC s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw,
125 u32 offset, u16 *data);
126 STATIC s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
127 u32 offset, u8 byte);
128 STATIC s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw);
129 STATIC void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw);
130 STATIC s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw);
131 STATIC s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw);
132 STATIC s32 e1000_k1_workaround_lv(struct e1000_hw *hw);
133 STATIC void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate);
135 /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */
136 /* Offset 04h HSFSTS */
137 union ich8_hws_flash_status {
139 u16 flcdone:1; /* bit 0 Flash Cycle Done */
140 u16 flcerr:1; /* bit 1 Flash Cycle Error */
141 u16 dael:1; /* bit 2 Direct Access error Log */
142 u16 berasesz:2; /* bit 4:3 Sector Erase Size */
143 u16 flcinprog:1; /* bit 5 flash cycle in Progress */
144 u16 reserved1:2; /* bit 13:6 Reserved */
145 u16 reserved2:6; /* bit 13:6 Reserved */
146 u16 fldesvalid:1; /* bit 14 Flash Descriptor Valid */
147 u16 flockdn:1; /* bit 15 Flash Config Lock-Down */
152 /* ICH GbE Flash Hardware Sequencing Flash control Register bit breakdown */
153 /* Offset 06h FLCTL */
154 union ich8_hws_flash_ctrl {
155 struct ich8_hsflctl {
156 u16 flcgo:1; /* 0 Flash Cycle Go */
157 u16 flcycle:2; /* 2:1 Flash Cycle */
158 u16 reserved:5; /* 7:3 Reserved */
159 u16 fldbcount:2; /* 9:8 Flash Data Byte Count */
160 u16 flockdn:6; /* 15:10 Reserved */
165 /* ICH Flash Region Access Permissions */
166 union ich8_hws_flash_regacc {
168 u32 grra:8; /* 0:7 GbE region Read Access */
169 u32 grwa:8; /* 8:15 GbE region Write Access */
170 u32 gmrag:8; /* 23:16 GbE Master Read Access Grant */
171 u32 gmwag:8; /* 31:24 GbE Master Write Access Grant */
177 * e1000_phy_is_accessible_pchlan - Check if able to access PHY registers
178 * @hw: pointer to the HW structure
180 * Test access to the PHY registers by reading the PHY ID registers. If
181 * the PHY ID is already known (e.g. resume path) compare it with known ID,
182 * otherwise assume the read PHY ID is correct if it is valid.
184 * Assumes the sw/fw/hw semaphore is already acquired.
186 STATIC bool e1000_phy_is_accessible_pchlan(struct e1000_hw *hw)
194 for (retry_count = 0; retry_count < 2; retry_count++) {
195 ret_val = hw->phy.ops.read_reg_locked(hw, PHY_ID1, &phy_reg);
196 if (ret_val || (phy_reg == 0xFFFF))
198 phy_id = (u32)(phy_reg << 16);
200 ret_val = hw->phy.ops.read_reg_locked(hw, PHY_ID2, &phy_reg);
201 if (ret_val || (phy_reg == 0xFFFF)) {
205 phy_id |= (u32)(phy_reg & PHY_REVISION_MASK);
210 if (hw->phy.id == phy_id)
214 hw->phy.revision = (u32)(phy_reg & ~PHY_REVISION_MASK);
218 /* In case the PHY needs to be in mdio slow mode,
219 * set slow mode and try to get the PHY id again.
221 if (hw->mac.type < e1000_pch_lpt) {
222 hw->phy.ops.release(hw);
223 ret_val = e1000_set_mdio_slow_mode_hv(hw);
225 ret_val = e1000_get_phy_id(hw);
226 hw->phy.ops.acquire(hw);
232 if (hw->mac.type == e1000_pch_lpt) {
233 /* Unforce SMBus mode in PHY */
234 hw->phy.ops.read_reg_locked(hw, CV_SMB_CTRL, &phy_reg);
235 phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
236 hw->phy.ops.write_reg_locked(hw, CV_SMB_CTRL, phy_reg);
238 /* Unforce SMBus mode in MAC */
239 mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
240 mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
241 E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
248 * e1000_toggle_lanphypc_pch_lpt - toggle the LANPHYPC pin value
249 * @hw: pointer to the HW structure
251 * Toggling the LANPHYPC pin value fully power-cycles the PHY and is
252 * used to reset the PHY to a quiescent state when necessary.
254 STATIC void e1000_toggle_lanphypc_pch_lpt(struct e1000_hw *hw)
258 DEBUGFUNC("e1000_toggle_lanphypc_pch_lpt");
260 /* Set Phy Config Counter to 50msec */
261 mac_reg = E1000_READ_REG(hw, E1000_FEXTNVM3);
262 mac_reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK;
263 mac_reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC;
264 E1000_WRITE_REG(hw, E1000_FEXTNVM3, mac_reg);
266 /* Toggle LANPHYPC Value bit */
267 mac_reg = E1000_READ_REG(hw, E1000_CTRL);
268 mac_reg |= E1000_CTRL_LANPHYPC_OVERRIDE;
269 mac_reg &= ~E1000_CTRL_LANPHYPC_VALUE;
270 E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
271 E1000_WRITE_FLUSH(hw);
273 mac_reg &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
274 E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
275 E1000_WRITE_FLUSH(hw);
277 if (hw->mac.type < e1000_pch_lpt) {
284 } while (!(E1000_READ_REG(hw, E1000_CTRL_EXT) &
285 E1000_CTRL_EXT_LPCD) && count--);
292 * e1000_init_phy_workarounds_pchlan - PHY initialization workarounds
293 * @hw: pointer to the HW structure
295 * Workarounds/flow necessary for PHY initialization during driver load
298 STATIC s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
300 u32 mac_reg, fwsm = E1000_READ_REG(hw, E1000_FWSM);
303 DEBUGFUNC("e1000_init_phy_workarounds_pchlan");
305 /* Gate automatic PHY configuration by hardware on managed and
306 * non-managed 82579 and newer adapters.
308 e1000_gate_hw_phy_config_ich8lan(hw, true);
310 #if defined(NAHUM6LP_HW) && defined(ULP_SUPPORT)
311 /* It is not possible to be certain of the current state of ULP
312 * so forcibly disable it.
314 hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_unknown;
316 #endif /* NAHUM6LP_HW && ULP_SUPPORT */
317 ret_val = hw->phy.ops.acquire(hw);
319 DEBUGOUT("Failed to initialize PHY flow\n");
323 /* The MAC-PHY interconnect may be in SMBus mode. If the PHY is
324 * inaccessible and resetting the PHY is not blocked, toggle the
325 * LANPHYPC Value bit to force the interconnect to PCIe mode.
327 switch (hw->mac.type) {
329 if (e1000_phy_is_accessible_pchlan(hw))
332 /* Before toggling LANPHYPC, see if PHY is accessible by
333 * forcing MAC to SMBus mode first.
335 mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
336 mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
337 E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
339 /* Wait 50 milliseconds for MAC to finish any retries
340 * that it might be trying to perform from previous
341 * attempts to acknowledge any phy read requests.
347 if (e1000_phy_is_accessible_pchlan(hw))
352 if ((hw->mac.type == e1000_pchlan) &&
353 (fwsm & E1000_ICH_FWSM_FW_VALID))
356 if (hw->phy.ops.check_reset_block(hw)) {
357 DEBUGOUT("Required LANPHYPC toggle blocked by ME\n");
358 ret_val = -E1000_ERR_PHY;
362 /* Toggle LANPHYPC Value bit */
363 e1000_toggle_lanphypc_pch_lpt(hw);
364 if (hw->mac.type >= e1000_pch_lpt) {
365 if (e1000_phy_is_accessible_pchlan(hw))
368 /* Toggling LANPHYPC brings the PHY out of SMBus mode
369 * so ensure that the MAC is also out of SMBus mode
371 mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
372 mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
373 E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
375 if (e1000_phy_is_accessible_pchlan(hw))
378 ret_val = -E1000_ERR_PHY;
385 hw->phy.ops.release(hw);
388 /* Check to see if able to reset PHY. Print error if not */
389 if (hw->phy.ops.check_reset_block(hw)) {
390 ERROR_REPORT("Reset blocked by ME\n");
394 /* Reset the PHY before any access to it. Doing so, ensures
395 * that the PHY is in a known good state before we read/write
396 * PHY registers. The generic reset is sufficient here,
397 * because we haven't determined the PHY type yet.
399 ret_val = e1000_phy_hw_reset_generic(hw);
403 /* On a successful reset, possibly need to wait for the PHY
404 * to quiesce to an accessible state before returning control
405 * to the calling function. If the PHY does not quiesce, then
406 * return E1000E_BLK_PHY_RESET, as this is the condition that
409 ret_val = hw->phy.ops.check_reset_block(hw);
411 ERROR_REPORT("ME blocked access to PHY after reset\n");
415 /* Ungate automatic PHY configuration on non-managed 82579 */
416 if ((hw->mac.type == e1000_pch2lan) &&
417 !(fwsm & E1000_ICH_FWSM_FW_VALID)) {
419 e1000_gate_hw_phy_config_ich8lan(hw, false);
426 * e1000_init_phy_params_pchlan - Initialize PHY function pointers
427 * @hw: pointer to the HW structure
429 * Initialize family-specific PHY parameters and function pointers.
431 STATIC s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
433 struct e1000_phy_info *phy = &hw->phy;
436 DEBUGFUNC("e1000_init_phy_params_pchlan");
439 phy->reset_delay_us = 100;
441 phy->ops.acquire = e1000_acquire_swflag_ich8lan;
442 phy->ops.check_reset_block = e1000_check_reset_block_ich8lan;
443 phy->ops.get_cfg_done = e1000_get_cfg_done_ich8lan;
444 phy->ops.set_page = e1000_set_page_igp;
445 phy->ops.read_reg = e1000_read_phy_reg_hv;
446 phy->ops.read_reg_locked = e1000_read_phy_reg_hv_locked;
447 phy->ops.read_reg_page = e1000_read_phy_reg_page_hv;
448 phy->ops.release = e1000_release_swflag_ich8lan;
449 phy->ops.reset = e1000_phy_hw_reset_ich8lan;
450 phy->ops.set_d0_lplu_state = e1000_set_lplu_state_pchlan;
451 phy->ops.set_d3_lplu_state = e1000_set_lplu_state_pchlan;
452 phy->ops.write_reg = e1000_write_phy_reg_hv;
453 phy->ops.write_reg_locked = e1000_write_phy_reg_hv_locked;
454 phy->ops.write_reg_page = e1000_write_phy_reg_page_hv;
455 phy->ops.power_up = e1000_power_up_phy_copper;
456 phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
457 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
459 phy->id = e1000_phy_unknown;
461 ret_val = e1000_init_phy_workarounds_pchlan(hw);
465 if (phy->id == e1000_phy_unknown)
466 switch (hw->mac.type) {
468 ret_val = e1000_get_phy_id(hw);
471 if ((phy->id != 0) && (phy->id != PHY_REVISION_MASK))
476 /* In case the PHY needs to be in mdio slow mode,
477 * set slow mode and try to get the PHY id again.
479 ret_val = e1000_set_mdio_slow_mode_hv(hw);
482 ret_val = e1000_get_phy_id(hw);
487 phy->type = e1000_get_phy_type_from_id(phy->id);
490 case e1000_phy_82577:
491 case e1000_phy_82579:
493 phy->ops.check_polarity = e1000_check_polarity_82577;
494 phy->ops.force_speed_duplex =
495 e1000_phy_force_speed_duplex_82577;
496 phy->ops.get_cable_length = e1000_get_cable_length_82577;
497 phy->ops.get_info = e1000_get_phy_info_82577;
498 phy->ops.commit = e1000_phy_sw_reset_generic;
500 case e1000_phy_82578:
501 phy->ops.check_polarity = e1000_check_polarity_m88;
502 phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_m88;
503 phy->ops.get_cable_length = e1000_get_cable_length_m88;
504 phy->ops.get_info = e1000_get_phy_info_m88;
507 ret_val = -E1000_ERR_PHY;
515 * e1000_init_phy_params_ich8lan - Initialize PHY function pointers
516 * @hw: pointer to the HW structure
518 * Initialize family-specific PHY parameters and function pointers.
520 STATIC s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
522 struct e1000_phy_info *phy = &hw->phy;
526 DEBUGFUNC("e1000_init_phy_params_ich8lan");
529 phy->reset_delay_us = 100;
531 phy->ops.acquire = e1000_acquire_swflag_ich8lan;
532 phy->ops.check_reset_block = e1000_check_reset_block_ich8lan;
533 phy->ops.get_cable_length = e1000_get_cable_length_igp_2;
534 phy->ops.get_cfg_done = e1000_get_cfg_done_ich8lan;
535 phy->ops.read_reg = e1000_read_phy_reg_igp;
536 phy->ops.release = e1000_release_swflag_ich8lan;
537 phy->ops.reset = e1000_phy_hw_reset_ich8lan;
538 phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_ich8lan;
539 phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_ich8lan;
540 phy->ops.write_reg = e1000_write_phy_reg_igp;
541 phy->ops.power_up = e1000_power_up_phy_copper;
542 phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
544 /* We may need to do this twice - once for IGP and if that fails,
545 * we'll set BM func pointers and try again
547 ret_val = e1000_determine_phy_address(hw);
549 phy->ops.write_reg = e1000_write_phy_reg_bm;
550 phy->ops.read_reg = e1000_read_phy_reg_bm;
551 ret_val = e1000_determine_phy_address(hw);
553 DEBUGOUT("Cannot determine PHY addr. Erroring out\n");
559 while ((e1000_phy_unknown == e1000_get_phy_type_from_id(phy->id)) &&
562 ret_val = e1000_get_phy_id(hw);
569 case IGP03E1000_E_PHY_ID:
570 phy->type = e1000_phy_igp_3;
571 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
572 phy->ops.read_reg_locked = e1000_read_phy_reg_igp_locked;
573 phy->ops.write_reg_locked = e1000_write_phy_reg_igp_locked;
574 phy->ops.get_info = e1000_get_phy_info_igp;
575 phy->ops.check_polarity = e1000_check_polarity_igp;
576 phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_igp;
579 case IFE_PLUS_E_PHY_ID:
581 phy->type = e1000_phy_ife;
582 phy->autoneg_mask = E1000_ALL_NOT_GIG;
583 phy->ops.get_info = e1000_get_phy_info_ife;
584 phy->ops.check_polarity = e1000_check_polarity_ife;
585 phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_ife;
587 case BME1000_E_PHY_ID:
588 phy->type = e1000_phy_bm;
589 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
590 phy->ops.read_reg = e1000_read_phy_reg_bm;
591 phy->ops.write_reg = e1000_write_phy_reg_bm;
592 phy->ops.commit = e1000_phy_sw_reset_generic;
593 phy->ops.get_info = e1000_get_phy_info_m88;
594 phy->ops.check_polarity = e1000_check_polarity_m88;
595 phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_m88;
598 return -E1000_ERR_PHY;
602 return E1000_SUCCESS;
606 * e1000_init_nvm_params_ich8lan - Initialize NVM function pointers
607 * @hw: pointer to the HW structure
609 * Initialize family-specific NVM parameters and function
612 STATIC s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw)
614 struct e1000_nvm_info *nvm = &hw->nvm;
615 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
616 u32 gfpreg, sector_base_addr, sector_end_addr;
619 DEBUGFUNC("e1000_init_nvm_params_ich8lan");
621 /* Can't read flash registers if the register set isn't mapped. */
622 nvm->type = e1000_nvm_flash_sw;
623 if (!hw->flash_address) {
624 DEBUGOUT("ERROR: Flash registers not mapped\n");
625 return -E1000_ERR_CONFIG;
628 gfpreg = E1000_READ_FLASH_REG(hw, ICH_FLASH_GFPREG);
630 /* sector_X_addr is a "sector"-aligned address (4096 bytes)
631 * Add 1 to sector_end_addr since this sector is included in
634 sector_base_addr = gfpreg & FLASH_GFPREG_BASE_MASK;
635 sector_end_addr = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK) + 1;
637 /* flash_base_addr is byte-aligned */
638 nvm->flash_base_addr = sector_base_addr << FLASH_SECTOR_ADDR_SHIFT;
640 /* find total size of the NVM, then cut in half since the total
641 * size represents two separate NVM banks.
643 nvm->flash_bank_size = ((sector_end_addr - sector_base_addr)
644 << FLASH_SECTOR_ADDR_SHIFT);
645 nvm->flash_bank_size /= 2;
646 /* Adjust to word count */
647 nvm->flash_bank_size /= sizeof(u16);
649 nvm->word_size = E1000_SHADOW_RAM_WORDS;
651 /* Clear shadow ram */
652 for (i = 0; i < nvm->word_size; i++) {
653 dev_spec->shadow_ram[i].modified = false;
654 dev_spec->shadow_ram[i].value = 0xFFFF;
657 E1000_MUTEX_INIT(&dev_spec->nvm_mutex);
658 E1000_MUTEX_INIT(&dev_spec->swflag_mutex);
660 /* Function Pointers */
661 nvm->ops.acquire = e1000_acquire_nvm_ich8lan;
662 nvm->ops.release = e1000_release_nvm_ich8lan;
663 nvm->ops.read = e1000_read_nvm_ich8lan;
664 nvm->ops.update = e1000_update_nvm_checksum_ich8lan;
665 nvm->ops.valid_led_default = e1000_valid_led_default_ich8lan;
666 nvm->ops.validate = e1000_validate_nvm_checksum_ich8lan;
667 nvm->ops.write = e1000_write_nvm_ich8lan;
669 return E1000_SUCCESS;
673 * e1000_init_mac_params_ich8lan - Initialize MAC function pointers
674 * @hw: pointer to the HW structure
676 * Initialize family-specific MAC parameters and function
679 STATIC s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
681 struct e1000_mac_info *mac = &hw->mac;
682 #if defined(QV_RELEASE) || !defined(NO_PCH_LPT_B0_SUPPORT)
684 #endif /* QV_RELEASE || !defined(NO_PCH_LPT_B0_SUPPORT) */
686 DEBUGFUNC("e1000_init_mac_params_ich8lan");
688 /* Set media type function pointer */
689 hw->phy.media_type = e1000_media_type_copper;
691 /* Set mta register count */
692 mac->mta_reg_count = 32;
693 /* Set rar entry count */
694 mac->rar_entry_count = E1000_ICH_RAR_ENTRIES;
695 if (mac->type == e1000_ich8lan)
696 mac->rar_entry_count--;
697 /* Set if part includes ASF firmware */
698 mac->asf_firmware_present = true;
700 mac->has_fwsm = true;
701 /* ARC subsystem not supported */
702 mac->arc_subsystem_valid = false;
703 /* Adaptive IFS supported */
704 mac->adaptive_ifs = true;
706 /* Function pointers */
708 /* bus type/speed/width */
709 mac->ops.get_bus_info = e1000_get_bus_info_ich8lan;
711 mac->ops.set_lan_id = e1000_set_lan_id_single_port;
713 mac->ops.reset_hw = e1000_reset_hw_ich8lan;
714 /* hw initialization */
715 mac->ops.init_hw = e1000_init_hw_ich8lan;
717 mac->ops.setup_link = e1000_setup_link_ich8lan;
718 /* physical interface setup */
719 mac->ops.setup_physical_interface = e1000_setup_copper_link_ich8lan;
721 mac->ops.check_for_link = e1000_check_for_copper_link_ich8lan;
723 mac->ops.get_link_up_info = e1000_get_link_up_info_ich8lan;
724 /* multicast address update */
725 mac->ops.update_mc_addr_list = e1000_update_mc_addr_list_generic;
726 /* clear hardware counters */
727 mac->ops.clear_hw_cntrs = e1000_clear_hw_cntrs_ich8lan;
729 /* LED and other operations */
734 /* check management mode */
735 mac->ops.check_mng_mode = e1000_check_mng_mode_ich8lan;
737 mac->ops.id_led_init = e1000_id_led_init_generic;
739 mac->ops.blink_led = e1000_blink_led_generic;
741 mac->ops.setup_led = e1000_setup_led_generic;
743 mac->ops.cleanup_led = e1000_cleanup_led_ich8lan;
744 /* turn on/off LED */
745 mac->ops.led_on = e1000_led_on_ich8lan;
746 mac->ops.led_off = e1000_led_off_ich8lan;
749 mac->rar_entry_count = E1000_PCH2_RAR_ENTRIES;
750 mac->ops.rar_set = e1000_rar_set_pch2lan;
753 #ifndef NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT
754 /* multicast address update for pch2 */
755 mac->ops.update_mc_addr_list =
756 e1000_update_mc_addr_list_pch2lan;
759 #if defined(QV_RELEASE) || !defined(NO_PCH_LPT_B0_SUPPORT)
760 /* save PCH revision_id */
761 e1000_read_pci_cfg(hw, E1000_PCI_REVISION_ID_REG, &pci_cfg);
762 hw->revision_id = (u8)(pci_cfg &= 0x000F);
763 #endif /* QV_RELEASE || !defined(NO_PCH_LPT_B0_SUPPORT) */
764 /* check management mode */
765 mac->ops.check_mng_mode = e1000_check_mng_mode_pchlan;
767 mac->ops.id_led_init = e1000_id_led_init_pchlan;
769 mac->ops.setup_led = e1000_setup_led_pchlan;
771 mac->ops.cleanup_led = e1000_cleanup_led_pchlan;
772 /* turn on/off LED */
773 mac->ops.led_on = e1000_led_on_pchlan;
774 mac->ops.led_off = e1000_led_off_pchlan;
780 if (mac->type == e1000_pch_lpt) {
781 mac->rar_entry_count = E1000_PCH_LPT_RAR_ENTRIES;
782 mac->ops.rar_set = e1000_rar_set_pch_lpt;
783 mac->ops.setup_physical_interface = e1000_setup_copper_link_pch_lpt;
786 /* Enable PCS Lock-loss workaround for ICH8 */
787 if (mac->type == e1000_ich8lan)
788 e1000_set_kmrn_lock_loss_workaround_ich8lan(hw, true);
790 return E1000_SUCCESS;
794 * __e1000_access_emi_reg_locked - Read/write EMI register
795 * @hw: pointer to the HW structure
796 * @addr: EMI address to program
797 * @data: pointer to value to read/write from/to the EMI address
798 * @read: boolean flag to indicate read or write
800 * This helper function assumes the SW/FW/HW Semaphore is already acquired.
802 STATIC s32 __e1000_access_emi_reg_locked(struct e1000_hw *hw, u16 address,
803 u16 *data, bool read)
807 DEBUGFUNC("__e1000_access_emi_reg_locked");
809 ret_val = hw->phy.ops.write_reg_locked(hw, I82579_EMI_ADDR, address);
814 ret_val = hw->phy.ops.read_reg_locked(hw, I82579_EMI_DATA,
817 ret_val = hw->phy.ops.write_reg_locked(hw, I82579_EMI_DATA,
824 * e1000_read_emi_reg_locked - Read Extended Management Interface register
825 * @hw: pointer to the HW structure
826 * @addr: EMI address to program
827 * @data: value to be read from the EMI address
829 * Assumes the SW/FW/HW Semaphore is already acquired.
831 s32 e1000_read_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 *data)
833 DEBUGFUNC("e1000_read_emi_reg_locked");
835 return __e1000_access_emi_reg_locked(hw, addr, data, true);
839 * e1000_write_emi_reg_locked - Write Extended Management Interface register
840 * @hw: pointer to the HW structure
841 * @addr: EMI address to program
842 * @data: value to be written to the EMI address
844 * Assumes the SW/FW/HW Semaphore is already acquired.
846 s32 e1000_write_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 data)
848 DEBUGFUNC("e1000_read_emi_reg_locked");
850 return __e1000_access_emi_reg_locked(hw, addr, &data, false);
854 * e1000_set_eee_pchlan - Enable/disable EEE support
855 * @hw: pointer to the HW structure
857 * Enable/disable EEE based on setting in dev_spec structure, the duplex of
858 * the link and the EEE capabilities of the link partner. The LPI Control
859 * register bits will remain set only if/when link is up.
861 * EEE LPI must not be asserted earlier than one second after link is up.
862 * On 82579, EEE LPI should not be enabled until such time otherwise there
863 * can be link issues with some switches. Other devices can have EEE LPI
864 * enabled immediately upon link up since they have a timer in hardware which
865 * prevents LPI from being asserted too early.
867 s32 e1000_set_eee_pchlan(struct e1000_hw *hw)
869 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
871 u16 lpa, pcs_status, adv, adv_addr, lpi_ctrl, data;
873 DEBUGFUNC("e1000_set_eee_pchlan");
875 switch (hw->phy.type) {
876 case e1000_phy_82579:
877 lpa = I82579_EEE_LP_ABILITY;
878 pcs_status = I82579_EEE_PCS_STATUS;
879 adv_addr = I82579_EEE_ADVERTISEMENT;
882 lpa = I217_EEE_LP_ABILITY;
883 pcs_status = I217_EEE_PCS_STATUS;
884 adv_addr = I217_EEE_ADVERTISEMENT;
887 return E1000_SUCCESS;
890 ret_val = hw->phy.ops.acquire(hw);
894 ret_val = hw->phy.ops.read_reg_locked(hw, I82579_LPI_CTRL, &lpi_ctrl);
898 /* Clear bits that enable EEE in various speeds */
899 lpi_ctrl &= ~I82579_LPI_CTRL_ENABLE_MASK;
901 /* Enable EEE if not disabled by user */
902 if (!dev_spec->eee_disable) {
903 /* Save off link partner's EEE ability */
904 ret_val = e1000_read_emi_reg_locked(hw, lpa,
905 &dev_spec->eee_lp_ability);
909 /* Read EEE advertisement */
910 ret_val = e1000_read_emi_reg_locked(hw, adv_addr, &adv);
914 /* Enable EEE only for speeds in which the link partner is
915 * EEE capable and for which we advertise EEE.
917 if (adv & dev_spec->eee_lp_ability & I82579_EEE_1000_SUPPORTED)
918 lpi_ctrl |= I82579_LPI_CTRL_1000_ENABLE;
920 if (adv & dev_spec->eee_lp_ability & I82579_EEE_100_SUPPORTED) {
921 hw->phy.ops.read_reg_locked(hw, PHY_LP_ABILITY, &data);
922 if (data & NWAY_LPAR_100TX_FD_CAPS)
923 lpi_ctrl |= I82579_LPI_CTRL_100_ENABLE;
925 /* EEE is not supported in 100Half, so ignore
926 * partner's EEE in 100 ability if full-duplex
929 dev_spec->eee_lp_ability &=
930 ~I82579_EEE_100_SUPPORTED;
934 /* R/Clr IEEE MMD 3.1 bits 11:10 - Tx/Rx LPI Received */
935 ret_val = e1000_read_emi_reg_locked(hw, pcs_status, &data);
939 ret_val = hw->phy.ops.write_reg_locked(hw, I82579_LPI_CTRL, lpi_ctrl);
941 hw->phy.ops.release(hw);
947 * e1000_k1_workaround_lpt_lp - K1 workaround on Lynxpoint-LP
948 * @hw: pointer to the HW structure
949 * @link: link up bool flag
951 * When K1 is enabled for 1Gbps, the MAC can miss 2 DMA completion indications
952 * preventing further DMA write requests. Workaround the issue by disabling
953 * the de-assertion of the clock request when in 1Gpbs mode.
954 * Also, set appropriate Tx re-transmission timeouts for 10 and 100Half link
955 * speeds in order to avoid Tx hangs.
957 STATIC s32 e1000_k1_workaround_lpt_lp(struct e1000_hw *hw, bool link)
959 u32 fextnvm6 = E1000_READ_REG(hw, E1000_FEXTNVM6);
960 u32 status = E1000_READ_REG(hw, E1000_STATUS);
961 s32 ret_val = E1000_SUCCESS;
964 if (link && (status & E1000_STATUS_SPEED_1000)) {
965 ret_val = hw->phy.ops.acquire(hw);
970 e1000_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG,
976 e1000_write_kmrn_reg_locked(hw,
977 E1000_KMRNCTRLSTA_K1_CONFIG,
979 ~E1000_KMRNCTRLSTA_K1_ENABLE);
985 E1000_WRITE_REG(hw, E1000_FEXTNVM6,
986 fextnvm6 | E1000_FEXTNVM6_REQ_PLL_CLK);
989 e1000_write_kmrn_reg_locked(hw,
990 E1000_KMRNCTRLSTA_K1_CONFIG,
993 hw->phy.ops.release(hw);
995 /* clear FEXTNVM6 bit 8 on link down or 10/100 */
996 fextnvm6 &= ~E1000_FEXTNVM6_REQ_PLL_CLK;
998 if (!link || ((status & E1000_STATUS_SPEED_100) &&
999 (status & E1000_STATUS_FD)))
1000 goto update_fextnvm6;
1002 ret_val = hw->phy.ops.read_reg(hw, I217_INBAND_CTRL, ®);
1006 /* Clear link status transmit timeout */
1007 reg &= ~I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_MASK;
1009 if (status & E1000_STATUS_SPEED_100) {
1010 /* Set inband Tx timeout to 5x10us for 100Half */
1011 reg |= 5 << I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT;
1013 /* Do not extend the K1 entry latency for 100Half */
1014 fextnvm6 &= ~E1000_FEXTNVM6_ENABLE_K1_ENTRY_CONDITION;
1016 /* Set inband Tx timeout to 50x10us for 10Full/Half */
1018 I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT;
1020 /* Extend the K1 entry latency for 10 Mbps */
1021 fextnvm6 |= E1000_FEXTNVM6_ENABLE_K1_ENTRY_CONDITION;
1024 ret_val = hw->phy.ops.write_reg(hw, I217_INBAND_CTRL, reg);
1029 E1000_WRITE_REG(hw, E1000_FEXTNVM6, fextnvm6);
1035 #if defined(NAHUM6LP_HW) && defined(ULP_SUPPORT)
1037 * e1000_enable_ulp_lpt_lp - configure Ultra Low Power mode for LynxPoint-LP
1038 * @hw: pointer to the HW structure
1039 * @to_sx: boolean indicating a system power state transition to Sx
1041 * When link is down, configure ULP mode to significantly reduce the power
1042 * to the PHY. If on a Manageability Engine (ME) enabled system, tell the
1043 * ME firmware to start the ULP configuration. If not on an ME enabled
1044 * system, configure the ULP mode by software.
1046 s32 e1000_enable_ulp_lpt_lp(struct e1000_hw *hw, bool to_sx)
1049 s32 ret_val = E1000_SUCCESS;
1052 if ((hw->mac.type < e1000_pch_lpt) ||
1053 (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_LM) ||
1054 (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_V) ||
1055 (hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_on))
1061 /* Poll up to 5 seconds for Cable Disconnected indication */
1062 while (!(E1000_READ_REG(hw, E1000_FEXT) &
1063 E1000_FEXT_PHY_CABLE_DISCONNECTED)) {
1064 /* Bail if link is re-acquired */
1065 if (E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU)
1066 return -E1000_ERR_PHY;
1073 DEBUGOUT2("CABLE_DISCONNECTED %s set after %dmsec\n",
1074 (E1000_READ_REG(hw, E1000_FEXT) &
1075 E1000_FEXT_PHY_CABLE_DISCONNECTED) ? "" : "not",
1079 if (E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID) {
1080 /* Request ME configure ULP mode in the PHY */
1081 mac_reg = E1000_READ_REG(hw, E1000_H2ME);
1082 mac_reg |= E1000_H2ME_ULP | E1000_H2ME_ENFORCE_SETTINGS;
1083 E1000_WRITE_REG(hw, E1000_H2ME, mac_reg);
1088 ret_val = hw->phy.ops.acquire(hw);
1092 /* During S0 Idle keep the phy in PCI-E mode */
1093 if (hw->dev_spec.ich8lan.smbus_disable)
1096 /* Force SMBus mode in PHY */
1097 ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg);
1100 phy_reg |= CV_SMB_CTRL_FORCE_SMBUS;
1101 e1000_write_phy_reg_hv_locked(hw, CV_SMB_CTRL, phy_reg);
1103 /* Force SMBus mode in MAC */
1104 mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
1105 mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
1106 E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
1110 /* Change the 'Link Status Change' interrupt to trigger
1111 * on 'Cable Status Change'
1113 ret_val = e1000_read_kmrn_reg_locked(hw,
1114 E1000_KMRNCTRLSTA_OP_MODES,
1118 phy_reg |= E1000_KMRNCTRLSTA_OP_MODES_LSC2CSC;
1119 e1000_write_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_OP_MODES,
1123 /* Set Inband ULP Exit, Reset to SMBus mode and
1124 * Disable SMBus Release on PERST# in PHY
1126 ret_val = e1000_read_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, &phy_reg);
1129 phy_reg |= (I218_ULP_CONFIG1_RESET_TO_SMBUS |
1130 I218_ULP_CONFIG1_DISABLE_SMB_PERST);
1132 if (E1000_READ_REG(hw, E1000_WUFC) & E1000_WUFC_LNKC)
1133 phy_reg |= I218_ULP_CONFIG1_WOL_HOST;
1135 phy_reg |= I218_ULP_CONFIG1_STICKY_ULP;
1137 phy_reg |= I218_ULP_CONFIG1_INBAND_EXIT;
1139 e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
1141 /* Set Disable SMBus Release on PERST# in MAC */
1142 mac_reg = E1000_READ_REG(hw, E1000_FEXTNVM7);
1143 mac_reg |= E1000_FEXTNVM7_DISABLE_SMB_PERST;
1144 E1000_WRITE_REG(hw, E1000_FEXTNVM7, mac_reg);
1146 /* Commit ULP changes in PHY by starting auto ULP configuration */
1147 phy_reg |= I218_ULP_CONFIG1_START;
1148 e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
1151 /* Disable Tx so that the MAC doesn't send any (buffered)
1152 * packets to the PHY.
1154 mac_reg = E1000_READ_REG(hw, E1000_TCTL);
1155 mac_reg &= ~E1000_TCTL_EN;
1156 E1000_WRITE_REG(hw, E1000_TCTL, mac_reg);
1159 hw->phy.ops.release(hw);
1162 DEBUGOUT1("Error in ULP enable flow: %d\n", ret_val);
1164 hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_on;
1170 * e1000_disable_ulp_lpt_lp - unconfigure Ultra Low Power mode for LynxPoint-LP
1171 * @hw: pointer to the HW structure
1172 * @force: boolean indicating whether or not to force disabling ULP
1174 * Un-configure ULP mode when link is up, the system is transitioned from
1175 * Sx or the driver is unloaded. If on a Manageability Engine (ME) enabled
1176 * system, poll for an indication from ME that ULP has been un-configured.
1177 * If not on an ME enabled system, un-configure the ULP mode by software.
1179 * During nominal operation, this function is called when link is acquired
1180 * to disable ULP mode (force=false); otherwise, for example when unloading
1181 * the driver or during Sx->S0 transitions, this is called with force=true
1182 * to forcibly disable ULP.
1184 * When the cable is plugged in while the device is in D0, a Cable Status
1185 * Change interrupt is generated which causes this function to be called
1186 * to partially disable ULP mode and restart autonegotiation. This function
1187 * is then called again due to the resulting Link Status Change interrupt
1188 * to finish cleaning up after the ULP flow.
1190 s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force)
1192 s32 ret_val = E1000_SUCCESS;
1197 if ((hw->mac.type < e1000_pch_lpt) ||
1198 (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_LM) ||
1199 (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_V) ||
1200 (hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_off))
1203 if (E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID) {
1205 /* Request ME un-configure ULP mode in the PHY */
1206 mac_reg = E1000_READ_REG(hw, E1000_H2ME);
1207 mac_reg &= ~E1000_H2ME_ULP;
1208 mac_reg |= E1000_H2ME_ENFORCE_SETTINGS;
1209 E1000_WRITE_REG(hw, E1000_H2ME, mac_reg);
1212 /* Poll up to 100msec for ME to clear ULP_CFG_DONE */
1213 while (E1000_READ_REG(hw, E1000_FWSM) &
1214 E1000_FWSM_ULP_CFG_DONE) {
1216 ret_val = -E1000_ERR_PHY;
1222 DEBUGOUT1("ULP_CONFIG_DONE cleared after %dmsec\n", i * 10);
1225 mac_reg = E1000_READ_REG(hw, E1000_H2ME);
1226 mac_reg &= ~E1000_H2ME_ENFORCE_SETTINGS;
1227 E1000_WRITE_REG(hw, E1000_H2ME, mac_reg);
1229 /* Clear H2ME.ULP after ME ULP configuration */
1230 mac_reg = E1000_READ_REG(hw, E1000_H2ME);
1231 mac_reg &= ~E1000_H2ME_ULP;
1232 E1000_WRITE_REG(hw, E1000_H2ME, mac_reg);
1234 /* Restore link speed advertisements and restart
1237 ret_val = e1000_phy_setup_autoneg(hw);
1241 ret_val = e1000_oem_bits_config_ich8lan(hw, true);
1247 ret_val = hw->phy.ops.acquire(hw);
1251 /* Revert the change to the 'Link Status Change'
1252 * interrupt to trigger on 'Cable Status Change'
1254 ret_val = e1000_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_OP_MODES,
1258 phy_reg &= ~E1000_KMRNCTRLSTA_OP_MODES_LSC2CSC;
1259 e1000_write_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_OP_MODES, phy_reg);
1262 /* Toggle LANPHYPC Value bit */
1263 e1000_toggle_lanphypc_pch_lpt(hw);
1265 /* Unforce SMBus mode in PHY */
1266 ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg);
1268 /* The MAC might be in PCIe mode, so temporarily force to
1269 * SMBus mode in order to access the PHY.
1271 mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
1272 mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
1273 E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
1277 ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL,
1282 phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
1283 e1000_write_phy_reg_hv_locked(hw, CV_SMB_CTRL, phy_reg);
1285 /* Unforce SMBus mode in MAC */
1286 mac_reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
1287 mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
1288 E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
1290 /* When ULP mode was previously entered, K1 was disabled by the
1291 * hardware. Re-Enable K1 in the PHY when exiting ULP.
1293 ret_val = e1000_read_phy_reg_hv_locked(hw, HV_PM_CTRL, &phy_reg);
1296 phy_reg |= HV_PM_CTRL_K1_ENABLE;
1297 e1000_write_phy_reg_hv_locked(hw, HV_PM_CTRL, phy_reg);
1299 /* Clear ULP enabled configuration */
1300 ret_val = e1000_read_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, &phy_reg);
1303 /* CSC interrupt received due to ULP Indication */
1304 if ((phy_reg & I218_ULP_CONFIG1_IND) || force) {
1305 phy_reg &= ~(I218_ULP_CONFIG1_IND |
1306 I218_ULP_CONFIG1_STICKY_ULP |
1307 I218_ULP_CONFIG1_RESET_TO_SMBUS |
1308 I218_ULP_CONFIG1_WOL_HOST |
1309 I218_ULP_CONFIG1_INBAND_EXIT |
1310 I218_ULP_CONFIG1_DISABLE_SMB_PERST);
1311 e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
1313 /* Commit ULP changes by starting auto ULP configuration */
1314 phy_reg |= I218_ULP_CONFIG1_START;
1315 e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
1317 /* Clear Disable SMBus Release on PERST# in MAC */
1318 mac_reg = E1000_READ_REG(hw, E1000_FEXTNVM7);
1319 mac_reg &= ~E1000_FEXTNVM7_DISABLE_SMB_PERST;
1320 E1000_WRITE_REG(hw, E1000_FEXTNVM7, mac_reg);
1323 hw->phy.ops.release(hw);
1325 if (hw->mac.autoneg)
1326 e1000_phy_setup_autoneg(hw);
1328 e1000_sw_lcd_config_ich8lan(hw);
1330 e1000_oem_bits_config_ich8lan(hw, true);
1332 /* Set ULP state to unknown and return non-zero to
1333 * indicate no link (yet) and re-enter on the next LSC
1334 * to finish disabling ULP flow.
1336 hw->dev_spec.ich8lan.ulp_state =
1337 e1000_ulp_state_unknown;
1344 mac_reg = E1000_READ_REG(hw, E1000_TCTL);
1345 mac_reg |= E1000_TCTL_EN;
1346 E1000_WRITE_REG(hw, E1000_TCTL, mac_reg);
1349 hw->phy.ops.release(hw);
1351 hw->phy.ops.reset(hw);
1356 DEBUGOUT1("Error in ULP disable flow: %d\n", ret_val);
1358 hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_off;
1363 #endif /* NAHUM6LP_HW && ULP_SUPPORT */
1365 * e1000_check_for_copper_link_ich8lan - Check for link (Copper)
1366 * @hw: pointer to the HW structure
1368 * Checks to see of the link status of the hardware has changed. If a
1369 * change in link status has been detected, then we read the PHY registers
1370 * to get the current speed/duplex if link exists.
1372 STATIC s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
1374 struct e1000_mac_info *mac = &hw->mac;
1379 DEBUGFUNC("e1000_check_for_copper_link_ich8lan");
1381 /* We only want to go out to the PHY registers to see if Auto-Neg
1382 * has completed and/or if our link status has changed. The
1383 * get_link_status flag is set upon receiving a Link Status
1384 * Change or Rx Sequence Error interrupt.
1386 if (!mac->get_link_status)
1387 return E1000_SUCCESS;
1389 if ((hw->mac.type < e1000_pch_lpt) ||
1390 (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_LM) ||
1391 (hw->device_id == E1000_DEV_ID_PCH_LPT_I217_V)) {
1392 /* First we want to see if the MII Status Register reports
1393 * link. If so, then we want to get the current speed/duplex
1396 ret_val = e1000_phy_has_link_generic(hw, 1, 0, &link);
1400 /* Check the MAC's STATUS register to determine link state
1401 * since the PHY could be inaccessible while in ULP mode.
1403 link = !!(E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU);
1405 ret_val = e1000_disable_ulp_lpt_lp(hw, false);
1407 ret_val = e1000_enable_ulp_lpt_lp(hw, false);
1413 if (hw->mac.type == e1000_pchlan) {
1414 ret_val = e1000_k1_gig_workaround_hv(hw, link);
1419 /* When connected at 10Mbps half-duplex, some parts are excessively
1420 * aggressive resulting in many collisions. To avoid this, increase
1421 * the IPG and reduce Rx latency in the PHY.
1423 if (((hw->mac.type == e1000_pch2lan) ||
1424 (hw->mac.type == e1000_pch_lpt)) && link) {
1426 reg = E1000_READ_REG(hw, E1000_STATUS);
1427 if (!(reg & (E1000_STATUS_FD | E1000_STATUS_SPEED_MASK))) {
1430 reg = E1000_READ_REG(hw, E1000_TIPG);
1431 reg &= ~E1000_TIPG_IPGT_MASK;
1433 E1000_WRITE_REG(hw, E1000_TIPG, reg);
1435 /* Reduce Rx latency in analog PHY */
1436 ret_val = hw->phy.ops.acquire(hw);
1440 if (hw->mac.type == e1000_pch2lan)
1441 emi_addr = I82579_RX_CONFIG;
1443 emi_addr = I217_RX_CONFIG;
1444 ret_val = e1000_write_emi_reg_locked(hw, emi_addr, 0);
1446 hw->phy.ops.release(hw);
1453 /* Work-around I218 hang issue */
1454 if ((hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
1455 (hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_V)) {
1456 ret_val = e1000_k1_workaround_lpt_lp(hw, link);
1461 /* Clear link partner's EEE ability */
1462 hw->dev_spec.ich8lan.eee_lp_ability = 0;
1465 return E1000_SUCCESS; /* No link detected */
1467 mac->get_link_status = false;
1469 switch (hw->mac.type) {
1471 ret_val = e1000_k1_workaround_lv(hw);
1476 if (hw->phy.type == e1000_phy_82578) {
1477 ret_val = e1000_link_stall_workaround_hv(hw);
1482 /* Workaround for PCHx parts in half-duplex:
1483 * Set the number of preambles removed from the packet
1484 * when it is passed from the PHY to the MAC to prevent
1485 * the MAC from misinterpreting the packet type.
1487 hw->phy.ops.read_reg(hw, HV_KMRN_FIFO_CTRLSTA, &phy_reg);
1488 phy_reg &= ~HV_KMRN_FIFO_CTRLSTA_PREAMBLE_MASK;
1490 if ((E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_FD) !=
1492 phy_reg |= (1 << HV_KMRN_FIFO_CTRLSTA_PREAMBLE_SHIFT);
1494 hw->phy.ops.write_reg(hw, HV_KMRN_FIFO_CTRLSTA, phy_reg);
1500 /* Check if there was DownShift, must be checked
1501 * immediately after link-up
1503 e1000_check_downshift_generic(hw);
1505 /* Enable/Disable EEE after link up */
1506 if (hw->phy.type > e1000_phy_82579) {
1507 ret_val = e1000_set_eee_pchlan(hw);
1512 /* If we are forcing speed/duplex, then we simply return since
1513 * we have already determined whether we have link or not.
1516 return -E1000_ERR_CONFIG;
1518 /* Auto-Neg is enabled. Auto Speed Detection takes care
1519 * of MAC speed/duplex configuration. So we only need to
1520 * configure Collision Distance in the MAC.
1522 mac->ops.config_collision_dist(hw);
1524 /* Configure Flow Control now that Auto-Neg has completed.
1525 * First, we need to restore the desired flow control
1526 * settings because we may have had to re-autoneg with a
1527 * different link partner.
1529 ret_val = e1000_config_fc_after_link_up_generic(hw);
1531 DEBUGOUT("Error configuring flow control\n");
1537 * e1000_init_function_pointers_ich8lan - Initialize ICH8 function pointers
1538 * @hw: pointer to the HW structure
1540 * Initialize family-specific function pointers for PHY, MAC, and NVM.
1542 void e1000_init_function_pointers_ich8lan(struct e1000_hw *hw)
1544 DEBUGFUNC("e1000_init_function_pointers_ich8lan");
1546 hw->mac.ops.init_params = e1000_init_mac_params_ich8lan;
1547 hw->nvm.ops.init_params = e1000_init_nvm_params_ich8lan;
1548 switch (hw->mac.type) {
1551 case e1000_ich10lan:
1552 hw->phy.ops.init_params = e1000_init_phy_params_ich8lan;
1557 hw->phy.ops.init_params = e1000_init_phy_params_pchlan;
1565 * e1000_acquire_nvm_ich8lan - Acquire NVM mutex
1566 * @hw: pointer to the HW structure
1568 * Acquires the mutex for performing NVM operations.
1570 STATIC s32 e1000_acquire_nvm_ich8lan(struct e1000_hw *hw)
1572 DEBUGFUNC("e1000_acquire_nvm_ich8lan");
1574 E1000_MUTEX_LOCK(&hw->dev_spec.ich8lan.nvm_mutex);
1576 return E1000_SUCCESS;
1580 * e1000_release_nvm_ich8lan - Release NVM mutex
1581 * @hw: pointer to the HW structure
1583 * Releases the mutex used while performing NVM operations.
1585 STATIC void e1000_release_nvm_ich8lan(struct e1000_hw *hw)
1587 DEBUGFUNC("e1000_release_nvm_ich8lan");
1589 E1000_MUTEX_UNLOCK(&hw->dev_spec.ich8lan.nvm_mutex);
1595 * e1000_acquire_swflag_ich8lan - Acquire software control flag
1596 * @hw: pointer to the HW structure
1598 * Acquires the software control flag for performing PHY and select
1601 STATIC s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw)
1603 u32 extcnf_ctrl, timeout = PHY_CFG_TIMEOUT;
1604 s32 ret_val = E1000_SUCCESS;
1606 DEBUGFUNC("e1000_acquire_swflag_ich8lan");
1608 E1000_MUTEX_LOCK(&hw->dev_spec.ich8lan.swflag_mutex);
1611 extcnf_ctrl = E1000_READ_REG(hw, E1000_EXTCNF_CTRL);
1612 if (!(extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG))
1620 DEBUGOUT("SW has already locked the resource.\n");
1621 ret_val = -E1000_ERR_CONFIG;
1625 timeout = SW_FLAG_TIMEOUT;
1627 extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG;
1628 E1000_WRITE_REG(hw, E1000_EXTCNF_CTRL, extcnf_ctrl);
1631 extcnf_ctrl = E1000_READ_REG(hw, E1000_EXTCNF_CTRL);
1632 if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG)
1640 DEBUGOUT2("Failed to acquire the semaphore, FW or HW has it: FWSM=0x%8.8x EXTCNF_CTRL=0x%8.8x)\n",
1641 E1000_READ_REG(hw, E1000_FWSM), extcnf_ctrl);
1642 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
1643 E1000_WRITE_REG(hw, E1000_EXTCNF_CTRL, extcnf_ctrl);
1644 ret_val = -E1000_ERR_CONFIG;
1650 E1000_MUTEX_UNLOCK(&hw->dev_spec.ich8lan.swflag_mutex);
1656 * e1000_release_swflag_ich8lan - Release software control flag
1657 * @hw: pointer to the HW structure
1659 * Releases the software control flag for performing PHY and select
1662 STATIC void e1000_release_swflag_ich8lan(struct e1000_hw *hw)
1666 DEBUGFUNC("e1000_release_swflag_ich8lan");
1668 extcnf_ctrl = E1000_READ_REG(hw, E1000_EXTCNF_CTRL);
1670 if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) {
1671 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
1672 E1000_WRITE_REG(hw, E1000_EXTCNF_CTRL, extcnf_ctrl);
1674 DEBUGOUT("Semaphore unexpectedly released by sw/fw/hw\n");
1677 E1000_MUTEX_UNLOCK(&hw->dev_spec.ich8lan.swflag_mutex);
1683 * e1000_check_mng_mode_ich8lan - Checks management mode
1684 * @hw: pointer to the HW structure
1686 * This checks if the adapter has any manageability enabled.
1687 * This is a function pointer entry point only called by read/write
1688 * routines for the PHY and NVM parts.
1690 STATIC bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw)
1694 DEBUGFUNC("e1000_check_mng_mode_ich8lan");
1696 fwsm = E1000_READ_REG(hw, E1000_FWSM);
1698 return (fwsm & E1000_ICH_FWSM_FW_VALID) &&
1699 ((fwsm & E1000_FWSM_MODE_MASK) ==
1700 (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT));
1704 * e1000_check_mng_mode_pchlan - Checks management mode
1705 * @hw: pointer to the HW structure
1707 * This checks if the adapter has iAMT enabled.
1708 * This is a function pointer entry point only called by read/write
1709 * routines for the PHY and NVM parts.
1711 STATIC bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw)
1715 DEBUGFUNC("e1000_check_mng_mode_pchlan");
1717 fwsm = E1000_READ_REG(hw, E1000_FWSM);
1719 return (fwsm & E1000_ICH_FWSM_FW_VALID) &&
1720 (fwsm & (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT));
1724 * e1000_rar_set_pch2lan - Set receive address register
1725 * @hw: pointer to the HW structure
1726 * @addr: pointer to the receive address
1727 * @index: receive address array register
1729 * Sets the receive address array register at index to the address passed
1730 * in by addr. For 82579, RAR[0] is the base address register that is to
1731 * contain the MAC address but RAR[1-6] are reserved for manageability (ME).
1732 * Use SHRA[0-3] in place of those reserved for ME.
1734 STATIC void e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index)
1736 u32 rar_low, rar_high;
1738 DEBUGFUNC("e1000_rar_set_pch2lan");
1740 /* HW expects these in little endian so we reverse the byte order
1741 * from network order (big endian) to little endian
1743 rar_low = ((u32) addr[0] |
1744 ((u32) addr[1] << 8) |
1745 ((u32) addr[2] << 16) | ((u32) addr[3] << 24));
1747 rar_high = ((u32) addr[4] | ((u32) addr[5] << 8));
1749 /* If MAC address zero, no need to set the AV bit */
1750 if (rar_low || rar_high)
1751 rar_high |= E1000_RAH_AV;
1754 E1000_WRITE_REG(hw, E1000_RAL(index), rar_low);
1755 E1000_WRITE_FLUSH(hw);
1756 E1000_WRITE_REG(hw, E1000_RAH(index), rar_high);
1757 E1000_WRITE_FLUSH(hw);
1761 /* RAR[1-6] are owned by manageability. Skip those and program the
1762 * next address into the SHRA register array.
1764 if (index < (u32) (hw->mac.rar_entry_count - 6)) {
1767 ret_val = e1000_acquire_swflag_ich8lan(hw);
1771 E1000_WRITE_REG(hw, E1000_SHRAL(index - 1), rar_low);
1772 E1000_WRITE_FLUSH(hw);
1773 E1000_WRITE_REG(hw, E1000_SHRAH(index - 1), rar_high);
1774 E1000_WRITE_FLUSH(hw);
1776 e1000_release_swflag_ich8lan(hw);
1778 /* verify the register updates */
1779 if ((E1000_READ_REG(hw, E1000_SHRAL(index - 1)) == rar_low) &&
1780 (E1000_READ_REG(hw, E1000_SHRAH(index - 1)) == rar_high))
1783 DEBUGOUT2("SHRA[%d] might be locked by ME - FWSM=0x%8.8x\n",
1784 (index - 1), E1000_READ_REG(hw, E1000_FWSM));
1788 DEBUGOUT1("Failed to write receive address at index %d\n", index);
1792 * e1000_rar_set_pch_lpt - Set receive address registers
1793 * @hw: pointer to the HW structure
1794 * @addr: pointer to the receive address
1795 * @index: receive address array register
1797 * Sets the receive address register array at index to the address passed
1798 * in by addr. For LPT, RAR[0] is the base address register that is to
1799 * contain the MAC address. SHRA[0-10] are the shared receive address
1800 * registers that are shared between the Host and manageability engine (ME).
1802 STATIC void e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index)
1804 u32 rar_low, rar_high;
1807 DEBUGFUNC("e1000_rar_set_pch_lpt");
1809 /* HW expects these in little endian so we reverse the byte order
1810 * from network order (big endian) to little endian
1812 rar_low = ((u32) addr[0] | ((u32) addr[1] << 8) |
1813 ((u32) addr[2] << 16) | ((u32) addr[3] << 24));
1815 rar_high = ((u32) addr[4] | ((u32) addr[5] << 8));
1817 /* If MAC address zero, no need to set the AV bit */
1818 if (rar_low || rar_high)
1819 rar_high |= E1000_RAH_AV;
1822 E1000_WRITE_REG(hw, E1000_RAL(index), rar_low);
1823 E1000_WRITE_FLUSH(hw);
1824 E1000_WRITE_REG(hw, E1000_RAH(index), rar_high);
1825 E1000_WRITE_FLUSH(hw);
1829 /* The manageability engine (ME) can lock certain SHRAR registers that
1830 * it is using - those registers are unavailable for use.
1832 if (index < hw->mac.rar_entry_count) {
1833 wlock_mac = E1000_READ_REG(hw, E1000_FWSM) &
1834 E1000_FWSM_WLOCK_MAC_MASK;
1835 wlock_mac >>= E1000_FWSM_WLOCK_MAC_SHIFT;
1837 /* Check if all SHRAR registers are locked */
1841 if ((wlock_mac == 0) || (index <= wlock_mac)) {
1844 ret_val = e1000_acquire_swflag_ich8lan(hw);
1849 E1000_WRITE_REG(hw, E1000_SHRAL_PCH_LPT(index - 1),
1851 E1000_WRITE_FLUSH(hw);
1852 E1000_WRITE_REG(hw, E1000_SHRAH_PCH_LPT(index - 1),
1854 E1000_WRITE_FLUSH(hw);
1856 e1000_release_swflag_ich8lan(hw);
1858 /* verify the register updates */
1859 if ((E1000_READ_REG(hw, E1000_SHRAL_PCH_LPT(index - 1)) == rar_low) &&
1860 (E1000_READ_REG(hw, E1000_SHRAH_PCH_LPT(index - 1)) == rar_high))
1866 DEBUGOUT1("Failed to write receive address at index %d\n", index);
1869 #ifndef NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT
1871 * e1000_update_mc_addr_list_pch2lan - Update Multicast addresses
1872 * @hw: pointer to the HW structure
1873 * @mc_addr_list: array of multicast addresses to program
1874 * @mc_addr_count: number of multicast addresses to program
1876 * Updates entire Multicast Table Array of the PCH2 MAC and PHY.
1877 * The caller must have a packed mc_addr_list of multicast addresses.
1879 STATIC void e1000_update_mc_addr_list_pch2lan(struct e1000_hw *hw,
1887 DEBUGFUNC("e1000_update_mc_addr_list_pch2lan");
1889 e1000_update_mc_addr_list_generic(hw, mc_addr_list, mc_addr_count);
1891 ret_val = hw->phy.ops.acquire(hw);
1895 ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg);
1899 for (i = 0; i < hw->mac.mta_reg_count; i++) {
1900 hw->phy.ops.write_reg_page(hw, BM_MTA(i),
1901 (u16)(hw->mac.mta_shadow[i] &
1903 hw->phy.ops.write_reg_page(hw, (BM_MTA(i) + 1),
1904 (u16)((hw->mac.mta_shadow[i] >> 16) &
1908 e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg);
1911 hw->phy.ops.release(hw);
1914 #endif /* NO_NON_BLOCKING_PHY_MTA_UPDATE_SUPPORT */
1916 * e1000_check_reset_block_ich8lan - Check if PHY reset is blocked
1917 * @hw: pointer to the HW structure
1919 * Checks if firmware is blocking the reset of the PHY.
1920 * This is a function pointer entry point only called by
1923 STATIC s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
1926 bool blocked = false;
1929 DEBUGFUNC("e1000_check_reset_block_ich8lan");
1932 fwsm = E1000_READ_REG(hw, E1000_FWSM);
1933 if (!(fwsm & E1000_ICH_FWSM_RSPCIPHY)) {
1939 } while (blocked && (i++ < 10));
1940 return blocked ? E1000_BLK_PHY_RESET : E1000_SUCCESS;
1944 * e1000_write_smbus_addr - Write SMBus address to PHY needed during Sx states
1945 * @hw: pointer to the HW structure
1947 * Assumes semaphore already acquired.
1950 STATIC s32 e1000_write_smbus_addr(struct e1000_hw *hw)
1953 u32 strap = E1000_READ_REG(hw, E1000_STRAP);
1954 u32 freq = (strap & E1000_STRAP_SMT_FREQ_MASK) >>
1955 E1000_STRAP_SMT_FREQ_SHIFT;
1958 strap &= E1000_STRAP_SMBUS_ADDRESS_MASK;
1960 ret_val = e1000_read_phy_reg_hv_locked(hw, HV_SMB_ADDR, &phy_data);
1964 phy_data &= ~HV_SMB_ADDR_MASK;
1965 phy_data |= (strap >> E1000_STRAP_SMBUS_ADDRESS_SHIFT);
1966 phy_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID;
1968 if (hw->phy.type == e1000_phy_i217) {
1969 /* Restore SMBus frequency */
1971 phy_data &= ~HV_SMB_ADDR_FREQ_MASK;
1972 phy_data |= (freq & (1 << 0)) <<
1973 HV_SMB_ADDR_FREQ_LOW_SHIFT;
1974 phy_data |= (freq & (1 << 1)) <<
1975 (HV_SMB_ADDR_FREQ_HIGH_SHIFT - 1);
1977 DEBUGOUT("Unsupported SMB frequency in PHY\n");
1981 return e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR, phy_data);
1985 * e1000_sw_lcd_config_ich8lan - SW-based LCD Configuration
1986 * @hw: pointer to the HW structure
1988 * SW should configure the LCD from the NVM extended configuration region
1989 * as a workaround for certain parts.
1991 STATIC s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
1993 struct e1000_phy_info *phy = &hw->phy;
1994 u32 i, data, cnf_size, cnf_base_addr, sw_cfg_mask;
1995 s32 ret_val = E1000_SUCCESS;
1996 u16 word_addr, reg_data, reg_addr, phy_page = 0;
1998 DEBUGFUNC("e1000_sw_lcd_config_ich8lan");
2000 /* Initialize the PHY from the NVM on ICH platforms. This
2001 * is needed due to an issue where the NVM configuration is
2002 * not properly autoloaded after power transitions.
2003 * Therefore, after each PHY reset, we will load the
2004 * configuration data out of the NVM manually.
2006 switch (hw->mac.type) {
2008 if (phy->type != e1000_phy_igp_3)
2011 if ((hw->device_id == E1000_DEV_ID_ICH8_IGP_AMT) ||
2012 (hw->device_id == E1000_DEV_ID_ICH8_IGP_C)) {
2013 sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG;
2020 sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M;
2026 ret_val = hw->phy.ops.acquire(hw);
2030 data = E1000_READ_REG(hw, E1000_FEXTNVM);
2031 if (!(data & sw_cfg_mask))
2034 /* Make sure HW does not configure LCD from PHY
2035 * extended configuration before SW configuration
2037 data = E1000_READ_REG(hw, E1000_EXTCNF_CTRL);
2038 if ((hw->mac.type < e1000_pch2lan) &&
2039 (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE))
2042 cnf_size = E1000_READ_REG(hw, E1000_EXTCNF_SIZE);
2043 cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK;
2044 cnf_size >>= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT;
2048 cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK;
2049 cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT;
2051 if (((hw->mac.type == e1000_pchlan) &&
2052 !(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)) ||
2053 (hw->mac.type > e1000_pchlan)) {
2054 /* HW configures the SMBus address and LEDs when the
2055 * OEM and LCD Write Enable bits are set in the NVM.
2056 * When both NVM bits are cleared, SW will configure
2059 ret_val = e1000_write_smbus_addr(hw);
2063 data = E1000_READ_REG(hw, E1000_LEDCTL);
2064 ret_val = e1000_write_phy_reg_hv_locked(hw, HV_LED_CONFIG,
2070 /* Configure LCD from extended configuration region. */
2072 /* cnf_base_addr is in DWORD */
2073 word_addr = (u16)(cnf_base_addr << 1);
2075 for (i = 0; i < cnf_size; i++) {
2076 ret_val = hw->nvm.ops.read(hw, (word_addr + i * 2), 1,
2081 ret_val = hw->nvm.ops.read(hw, (word_addr + i * 2 + 1),
2086 /* Save off the PHY page for future writes. */
2087 if (reg_addr == IGP01E1000_PHY_PAGE_SELECT) {
2088 phy_page = reg_data;
2092 reg_addr &= PHY_REG_MASK;
2093 reg_addr |= phy_page;
2095 ret_val = phy->ops.write_reg_locked(hw, (u32)reg_addr,
2102 hw->phy.ops.release(hw);
2107 * e1000_k1_gig_workaround_hv - K1 Si workaround
2108 * @hw: pointer to the HW structure
2109 * @link: link up bool flag
2111 * If K1 is enabled for 1Gbps, the MAC might stall when transitioning
2112 * from a lower speed. This workaround disables K1 whenever link is at 1Gig
2113 * If link is down, the function will restore the default K1 setting located
2116 STATIC s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link)
2118 s32 ret_val = E1000_SUCCESS;
2120 bool k1_enable = hw->dev_spec.ich8lan.nvm_k1_enabled;
2122 DEBUGFUNC("e1000_k1_gig_workaround_hv");
2124 if (hw->mac.type != e1000_pchlan)
2125 return E1000_SUCCESS;
2127 /* Wrap the whole flow with the sw flag */
2128 ret_val = hw->phy.ops.acquire(hw);
2132 /* Disable K1 when link is 1Gbps, otherwise use the NVM setting */
2134 if (hw->phy.type == e1000_phy_82578) {
2135 ret_val = hw->phy.ops.read_reg_locked(hw, BM_CS_STATUS,
2140 status_reg &= (BM_CS_STATUS_LINK_UP |
2141 BM_CS_STATUS_RESOLVED |
2142 BM_CS_STATUS_SPEED_MASK);
2144 if (status_reg == (BM_CS_STATUS_LINK_UP |
2145 BM_CS_STATUS_RESOLVED |
2146 BM_CS_STATUS_SPEED_1000))
2150 if (hw->phy.type == e1000_phy_82577) {
2151 ret_val = hw->phy.ops.read_reg_locked(hw, HV_M_STATUS,
2156 status_reg &= (HV_M_STATUS_LINK_UP |
2157 HV_M_STATUS_AUTONEG_COMPLETE |
2158 HV_M_STATUS_SPEED_MASK);
2160 if (status_reg == (HV_M_STATUS_LINK_UP |
2161 HV_M_STATUS_AUTONEG_COMPLETE |
2162 HV_M_STATUS_SPEED_1000))
2166 /* Link stall fix for link up */
2167 ret_val = hw->phy.ops.write_reg_locked(hw, PHY_REG(770, 19),
2173 /* Link stall fix for link down */
2174 ret_val = hw->phy.ops.write_reg_locked(hw, PHY_REG(770, 19),
2180 ret_val = e1000_configure_k1_ich8lan(hw, k1_enable);
2183 hw->phy.ops.release(hw);
2189 * e1000_configure_k1_ich8lan - Configure K1 power state
2190 * @hw: pointer to the HW structure
2191 * @enable: K1 state to configure
2193 * Configure the K1 power state based on the provided parameter.
2194 * Assumes semaphore already acquired.
2196 * Success returns 0, Failure returns -E1000_ERR_PHY (-2)
2198 s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable)
2206 DEBUGFUNC("e1000_configure_k1_ich8lan");
2208 ret_val = e1000_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG,
2214 kmrn_reg |= E1000_KMRNCTRLSTA_K1_ENABLE;
2216 kmrn_reg &= ~E1000_KMRNCTRLSTA_K1_ENABLE;
2218 ret_val = e1000_write_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG,
2224 ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
2225 ctrl_reg = E1000_READ_REG(hw, E1000_CTRL);
2227 reg = ctrl_reg & ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
2228 reg |= E1000_CTRL_FRCSPD;
2229 E1000_WRITE_REG(hw, E1000_CTRL, reg);
2231 E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_SPD_BYPS);
2232 E1000_WRITE_FLUSH(hw);
2234 E1000_WRITE_REG(hw, E1000_CTRL, ctrl_reg);
2235 E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
2236 E1000_WRITE_FLUSH(hw);
2239 return E1000_SUCCESS;
2243 * e1000_oem_bits_config_ich8lan - SW-based LCD Configuration
2244 * @hw: pointer to the HW structure
2245 * @d0_state: boolean if entering d0 or d3 device state
2247 * SW will configure Gbe Disable and LPLU based on the NVM. The four bits are
2248 * collectively called OEM bits. The OEM Write Enable bit and SW Config bit
2249 * in NVM determines whether HW should configure LPLU and Gbe Disable.
2251 STATIC s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state)
2257 DEBUGFUNC("e1000_oem_bits_config_ich8lan");
2259 if (hw->mac.type < e1000_pchlan)
2262 ret_val = hw->phy.ops.acquire(hw);
2266 if (hw->mac.type == e1000_pchlan) {
2267 mac_reg = E1000_READ_REG(hw, E1000_EXTCNF_CTRL);
2268 if (mac_reg & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)
2272 mac_reg = E1000_READ_REG(hw, E1000_FEXTNVM);
2273 if (!(mac_reg & E1000_FEXTNVM_SW_CONFIG_ICH8M))
2276 mac_reg = E1000_READ_REG(hw, E1000_PHY_CTRL);
2278 ret_val = hw->phy.ops.read_reg_locked(hw, HV_OEM_BITS, &oem_reg);
2282 oem_reg &= ~(HV_OEM_BITS_GBE_DIS | HV_OEM_BITS_LPLU);
2285 if (mac_reg & E1000_PHY_CTRL_GBE_DISABLE)
2286 oem_reg |= HV_OEM_BITS_GBE_DIS;
2288 if (mac_reg & E1000_PHY_CTRL_D0A_LPLU)
2289 oem_reg |= HV_OEM_BITS_LPLU;
2291 if (mac_reg & (E1000_PHY_CTRL_GBE_DISABLE |
2292 E1000_PHY_CTRL_NOND0A_GBE_DISABLE))
2293 oem_reg |= HV_OEM_BITS_GBE_DIS;
2295 if (mac_reg & (E1000_PHY_CTRL_D0A_LPLU |
2296 E1000_PHY_CTRL_NOND0A_LPLU))
2297 oem_reg |= HV_OEM_BITS_LPLU;
2300 /* Set Restart auto-neg to activate the bits */
2301 if ((d0_state || (hw->mac.type != e1000_pchlan)) &&
2302 !hw->phy.ops.check_reset_block(hw))
2303 oem_reg |= HV_OEM_BITS_RESTART_AN;
2305 ret_val = hw->phy.ops.write_reg_locked(hw, HV_OEM_BITS, oem_reg);
2308 hw->phy.ops.release(hw);
2315 * e1000_set_mdio_slow_mode_hv - Set slow MDIO access mode
2316 * @hw: pointer to the HW structure
2318 STATIC s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw)
2323 DEBUGFUNC("e1000_set_mdio_slow_mode_hv");
2325 ret_val = hw->phy.ops.read_reg(hw, HV_KMRN_MODE_CTRL, &data);
2329 data |= HV_KMRN_MDIO_SLOW;
2331 ret_val = hw->phy.ops.write_reg(hw, HV_KMRN_MODE_CTRL, data);
2337 * e1000_hv_phy_workarounds_ich8lan - A series of Phy workarounds to be
2338 * done after every PHY reset.
2340 STATIC s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw)
2342 s32 ret_val = E1000_SUCCESS;
2345 DEBUGFUNC("e1000_hv_phy_workarounds_ich8lan");
2347 if (hw->mac.type != e1000_pchlan)
2348 return E1000_SUCCESS;
2350 /* Set MDIO slow mode before any other MDIO access */
2351 if (hw->phy.type == e1000_phy_82577) {
2352 ret_val = e1000_set_mdio_slow_mode_hv(hw);
2357 if (((hw->phy.type == e1000_phy_82577) &&
2358 ((hw->phy.revision == 1) || (hw->phy.revision == 2))) ||
2359 ((hw->phy.type == e1000_phy_82578) && (hw->phy.revision == 1))) {
2360 /* Disable generation of early preamble */
2361 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(769, 25), 0x4431);
2365 /* Preamble tuning for SSC */
2366 ret_val = hw->phy.ops.write_reg(hw, HV_KMRN_FIFO_CTRLSTA,
2372 if (hw->phy.type == e1000_phy_82578) {
2373 /* Return registers to default by doing a soft reset then
2374 * writing 0x3140 to the control register.
2376 if (hw->phy.revision < 2) {
2377 e1000_phy_sw_reset_generic(hw);
2378 ret_val = hw->phy.ops.write_reg(hw, PHY_CONTROL,
2384 ret_val = hw->phy.ops.acquire(hw);
2389 ret_val = e1000_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0);
2390 hw->phy.ops.release(hw);
2394 /* Configure the K1 Si workaround during phy reset assuming there is
2395 * link so that it disables K1 if link is in 1Gbps.
2397 ret_val = e1000_k1_gig_workaround_hv(hw, true);
2401 /* Workaround for link disconnects on a busy hub in half duplex */
2402 ret_val = hw->phy.ops.acquire(hw);
2405 ret_val = hw->phy.ops.read_reg_locked(hw, BM_PORT_GEN_CFG, &phy_data);
2408 ret_val = hw->phy.ops.write_reg_locked(hw, BM_PORT_GEN_CFG,
2413 /* set MSE higher to enable link to stay up when noise is high */
2414 ret_val = e1000_write_emi_reg_locked(hw, I82577_MSE_THRESHOLD, 0x0034);
2416 hw->phy.ops.release(hw);
2422 * e1000_copy_rx_addrs_to_phy_ich8lan - Copy Rx addresses from MAC to PHY
2423 * @hw: pointer to the HW structure
2425 void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw)
2431 DEBUGFUNC("e1000_copy_rx_addrs_to_phy_ich8lan");
2433 ret_val = hw->phy.ops.acquire(hw);
2436 ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg);
2440 /* Copy both RAL/H (rar_entry_count) and SHRAL/H to PHY */
2441 for (i = 0; i < (hw->mac.rar_entry_count); i++) {
2442 mac_reg = E1000_READ_REG(hw, E1000_RAL(i));
2443 hw->phy.ops.write_reg_page(hw, BM_RAR_L(i),
2444 (u16)(mac_reg & 0xFFFF));
2445 hw->phy.ops.write_reg_page(hw, BM_RAR_M(i),
2446 (u16)((mac_reg >> 16) & 0xFFFF));
2448 mac_reg = E1000_READ_REG(hw, E1000_RAH(i));
2449 hw->phy.ops.write_reg_page(hw, BM_RAR_H(i),
2450 (u16)(mac_reg & 0xFFFF));
2451 hw->phy.ops.write_reg_page(hw, BM_RAR_CTRL(i),
2452 (u16)((mac_reg & E1000_RAH_AV)
2456 e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg);
2459 hw->phy.ops.release(hw);
2462 #ifndef CRC32_OS_SUPPORT
2463 STATIC u32 e1000_calc_rx_da_crc(u8 mac[])
2465 u32 poly = 0xEDB88320; /* Polynomial for 802.3 CRC calculation */
2466 u32 i, j, mask, crc;
2468 DEBUGFUNC("e1000_calc_rx_da_crc");
2471 for (i = 0; i < 6; i++) {
2473 for (j = 8; j > 0; j--) {
2474 mask = (crc & 1) * (-1);
2475 crc = (crc >> 1) ^ (poly & mask);
2481 #endif /* CRC32_OS_SUPPORT */
2483 * e1000_lv_jumbo_workaround_ich8lan - required for jumbo frame operation
2485 * @hw: pointer to the HW structure
2486 * @enable: flag to enable/disable workaround when enabling/disabling jumbos
2488 s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
2490 s32 ret_val = E1000_SUCCESS;
2495 DEBUGFUNC("e1000_lv_jumbo_workaround_ich8lan");
2497 if (hw->mac.type < e1000_pch2lan)
2498 return E1000_SUCCESS;
2500 /* disable Rx path while enabling/disabling workaround */
2501 hw->phy.ops.read_reg(hw, PHY_REG(769, 20), &phy_reg);
2502 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(769, 20),
2503 phy_reg | (1 << 14));
2508 /* Write Rx addresses (rar_entry_count for RAL/H, and
2509 * SHRAL/H) and initial CRC values to the MAC
2511 for (i = 0; i < hw->mac.rar_entry_count; i++) {
2512 u8 mac_addr[ETH_ADDR_LEN] = {0};
2513 u32 addr_high, addr_low;
2515 addr_high = E1000_READ_REG(hw, E1000_RAH(i));
2516 if (!(addr_high & E1000_RAH_AV))
2518 addr_low = E1000_READ_REG(hw, E1000_RAL(i));
2519 mac_addr[0] = (addr_low & 0xFF);
2520 mac_addr[1] = ((addr_low >> 8) & 0xFF);
2521 mac_addr[2] = ((addr_low >> 16) & 0xFF);
2522 mac_addr[3] = ((addr_low >> 24) & 0xFF);
2523 mac_addr[4] = (addr_high & 0xFF);
2524 mac_addr[5] = ((addr_high >> 8) & 0xFF);
2526 #ifndef CRC32_OS_SUPPORT
2527 E1000_WRITE_REG(hw, E1000_PCH_RAICC(i),
2528 e1000_calc_rx_da_crc(mac_addr));
2529 #else /* CRC32_OS_SUPPORT */
2530 E1000_WRITE_REG(hw, E1000_PCH_RAICC(i),
2531 E1000_CRC32(ETH_ADDR_LEN, mac_addr));
2532 #endif /* CRC32_OS_SUPPORT */
2535 /* Write Rx addresses to the PHY */
2536 e1000_copy_rx_addrs_to_phy_ich8lan(hw);
2538 /* Enable jumbo frame workaround in the MAC */
2539 mac_reg = E1000_READ_REG(hw, E1000_FFLT_DBG);
2540 mac_reg &= ~(1 << 14);
2541 mac_reg |= (7 << 15);
2542 E1000_WRITE_REG(hw, E1000_FFLT_DBG, mac_reg);
2544 mac_reg = E1000_READ_REG(hw, E1000_RCTL);
2545 mac_reg |= E1000_RCTL_SECRC;
2546 E1000_WRITE_REG(hw, E1000_RCTL, mac_reg);
2548 ret_val = e1000_read_kmrn_reg_generic(hw,
2549 E1000_KMRNCTRLSTA_CTRL_OFFSET,
2553 ret_val = e1000_write_kmrn_reg_generic(hw,
2554 E1000_KMRNCTRLSTA_CTRL_OFFSET,
2558 ret_val = e1000_read_kmrn_reg_generic(hw,
2559 E1000_KMRNCTRLSTA_HD_CTRL,
2563 data &= ~(0xF << 8);
2565 ret_val = e1000_write_kmrn_reg_generic(hw,
2566 E1000_KMRNCTRLSTA_HD_CTRL,
2571 /* Enable jumbo frame workaround in the PHY */
2572 hw->phy.ops.read_reg(hw, PHY_REG(769, 23), &data);
2573 data &= ~(0x7F << 5);
2574 data |= (0x37 << 5);
2575 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(769, 23), data);
2578 hw->phy.ops.read_reg(hw, PHY_REG(769, 16), &data);
2580 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(769, 16), data);
2583 hw->phy.ops.read_reg(hw, PHY_REG(776, 20), &data);
2584 data &= ~(0x3FF << 2);
2585 data |= (0x1A << 2);
2586 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(776, 20), data);
2589 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(776, 23), 0xF100);
2592 hw->phy.ops.read_reg(hw, HV_PM_CTRL, &data);
2593 ret_val = hw->phy.ops.write_reg(hw, HV_PM_CTRL, data |
2598 /* Write MAC register values back to h/w defaults */
2599 mac_reg = E1000_READ_REG(hw, E1000_FFLT_DBG);
2600 mac_reg &= ~(0xF << 14);
2601 E1000_WRITE_REG(hw, E1000_FFLT_DBG, mac_reg);
2603 mac_reg = E1000_READ_REG(hw, E1000_RCTL);
2604 mac_reg &= ~E1000_RCTL_SECRC;
2605 E1000_WRITE_REG(hw, E1000_RCTL, mac_reg);
2607 ret_val = e1000_read_kmrn_reg_generic(hw,
2608 E1000_KMRNCTRLSTA_CTRL_OFFSET,
2612 ret_val = e1000_write_kmrn_reg_generic(hw,
2613 E1000_KMRNCTRLSTA_CTRL_OFFSET,
2617 ret_val = e1000_read_kmrn_reg_generic(hw,
2618 E1000_KMRNCTRLSTA_HD_CTRL,
2622 data &= ~(0xF << 8);
2624 ret_val = e1000_write_kmrn_reg_generic(hw,
2625 E1000_KMRNCTRLSTA_HD_CTRL,
2630 /* Write PHY register values back to h/w defaults */
2631 hw->phy.ops.read_reg(hw, PHY_REG(769, 23), &data);
2632 data &= ~(0x7F << 5);
2633 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(769, 23), data);
2636 hw->phy.ops.read_reg(hw, PHY_REG(769, 16), &data);
2638 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(769, 16), data);
2641 hw->phy.ops.read_reg(hw, PHY_REG(776, 20), &data);
2642 data &= ~(0x3FF << 2);
2644 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(776, 20), data);
2647 ret_val = hw->phy.ops.write_reg(hw, PHY_REG(776, 23), 0x7E00);
2650 hw->phy.ops.read_reg(hw, HV_PM_CTRL, &data);
2651 ret_val = hw->phy.ops.write_reg(hw, HV_PM_CTRL, data &
2657 /* re-enable Rx path after enabling/disabling workaround */
2658 return hw->phy.ops.write_reg(hw, PHY_REG(769, 20), phy_reg &
2663 * e1000_lv_phy_workarounds_ich8lan - A series of Phy workarounds to be
2664 * done after every PHY reset.
2666 STATIC s32 e1000_lv_phy_workarounds_ich8lan(struct e1000_hw *hw)
2668 s32 ret_val = E1000_SUCCESS;
2670 DEBUGFUNC("e1000_lv_phy_workarounds_ich8lan");
2672 if (hw->mac.type != e1000_pch2lan)
2673 return E1000_SUCCESS;
2675 /* Set MDIO slow mode before any other MDIO access */
2676 ret_val = e1000_set_mdio_slow_mode_hv(hw);
2680 ret_val = hw->phy.ops.acquire(hw);
2683 /* set MSE higher to enable link to stay up when noise is high */
2684 ret_val = e1000_write_emi_reg_locked(hw, I82579_MSE_THRESHOLD, 0x0034);
2687 /* drop link after 5 times MSE threshold was reached */
2688 ret_val = e1000_write_emi_reg_locked(hw, I82579_MSE_LINK_DOWN, 0x0005);
2690 hw->phy.ops.release(hw);
2696 * e1000_k1_gig_workaround_lv - K1 Si workaround
2697 * @hw: pointer to the HW structure
2699 * Workaround to set the K1 beacon duration for 82579 parts in 10Mbps
2700 * Disable K1 for 1000 and 100 speeds
2702 STATIC s32 e1000_k1_workaround_lv(struct e1000_hw *hw)
2704 s32 ret_val = E1000_SUCCESS;
2707 DEBUGFUNC("e1000_k1_workaround_lv");
2709 if (hw->mac.type != e1000_pch2lan)
2710 return E1000_SUCCESS;
2712 /* Set K1 beacon duration based on 10Mbs speed */
2713 ret_val = hw->phy.ops.read_reg(hw, HV_M_STATUS, &status_reg);
2717 if ((status_reg & (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE))
2718 == (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE)) {
2720 (HV_M_STATUS_SPEED_1000 | HV_M_STATUS_SPEED_100)) {
2723 /* LV 1G/100 Packet drop issue wa */
2724 ret_val = hw->phy.ops.read_reg(hw, HV_PM_CTRL,
2728 pm_phy_reg &= ~HV_PM_CTRL_K1_ENABLE;
2729 ret_val = hw->phy.ops.write_reg(hw, HV_PM_CTRL,
2735 mac_reg = E1000_READ_REG(hw, E1000_FEXTNVM4);
2736 mac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK;
2737 mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_16USEC;
2738 E1000_WRITE_REG(hw, E1000_FEXTNVM4, mac_reg);
2746 * e1000_gate_hw_phy_config_ich8lan - disable PHY config via hardware
2747 * @hw: pointer to the HW structure
2748 * @gate: boolean set to true to gate, false to ungate
2750 * Gate/ungate the automatic PHY configuration via hardware; perform
2751 * the configuration via software instead.
2753 STATIC void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate)
2757 DEBUGFUNC("e1000_gate_hw_phy_config_ich8lan");
2759 if (hw->mac.type < e1000_pch2lan)
2762 extcnf_ctrl = E1000_READ_REG(hw, E1000_EXTCNF_CTRL);
2765 extcnf_ctrl |= E1000_EXTCNF_CTRL_GATE_PHY_CFG;
2767 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_GATE_PHY_CFG;
2769 E1000_WRITE_REG(hw, E1000_EXTCNF_CTRL, extcnf_ctrl);
2773 * e1000_lan_init_done_ich8lan - Check for PHY config completion
2774 * @hw: pointer to the HW structure
2776 * Check the appropriate indication the MAC has finished configuring the
2777 * PHY after a software reset.
2779 STATIC void e1000_lan_init_done_ich8lan(struct e1000_hw *hw)
2781 u32 data, loop = E1000_ICH8_LAN_INIT_TIMEOUT;
2783 DEBUGFUNC("e1000_lan_init_done_ich8lan");
2785 /* Wait for basic configuration completes before proceeding */
2787 data = E1000_READ_REG(hw, E1000_STATUS);
2788 data &= E1000_STATUS_LAN_INIT_DONE;
2790 } while ((!data) && --loop);
2792 /* If basic configuration is incomplete before the above loop
2793 * count reaches 0, loading the configuration from NVM will
2794 * leave the PHY in a bad state possibly resulting in no link.
2797 DEBUGOUT("LAN_INIT_DONE not set, increase timeout\n");
2799 /* Clear the Init Done bit for the next init event */
2800 data = E1000_READ_REG(hw, E1000_STATUS);
2801 data &= ~E1000_STATUS_LAN_INIT_DONE;
2802 E1000_WRITE_REG(hw, E1000_STATUS, data);
2806 * e1000_post_phy_reset_ich8lan - Perform steps required after a PHY reset
2807 * @hw: pointer to the HW structure
2809 STATIC s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw)
2811 s32 ret_val = E1000_SUCCESS;
2814 DEBUGFUNC("e1000_post_phy_reset_ich8lan");
2816 if (hw->phy.ops.check_reset_block(hw))
2817 return E1000_SUCCESS;
2819 /* Allow time for h/w to get to quiescent state after reset */
2822 /* Perform any necessary post-reset workarounds */
2823 switch (hw->mac.type) {
2825 ret_val = e1000_hv_phy_workarounds_ich8lan(hw);
2830 ret_val = e1000_lv_phy_workarounds_ich8lan(hw);
2838 /* Clear the host wakeup bit after lcd reset */
2839 if (hw->mac.type >= e1000_pchlan) {
2840 hw->phy.ops.read_reg(hw, BM_PORT_GEN_CFG, ®);
2841 reg &= ~BM_WUC_HOST_WU_BIT;
2842 hw->phy.ops.write_reg(hw, BM_PORT_GEN_CFG, reg);
2845 /* Configure the LCD with the extended configuration region in NVM */
2846 ret_val = e1000_sw_lcd_config_ich8lan(hw);
2850 /* Configure the LCD with the OEM bits in NVM */
2851 ret_val = e1000_oem_bits_config_ich8lan(hw, true);
2853 if (hw->mac.type == e1000_pch2lan) {
2854 /* Ungate automatic PHY configuration on non-managed 82579 */
2855 if (!(E1000_READ_REG(hw, E1000_FWSM) &
2856 E1000_ICH_FWSM_FW_VALID)) {
2858 e1000_gate_hw_phy_config_ich8lan(hw, false);
2861 /* Set EEE LPI Update Timer to 200usec */
2862 ret_val = hw->phy.ops.acquire(hw);
2865 ret_val = e1000_write_emi_reg_locked(hw,
2866 I82579_LPI_UPDATE_TIMER,
2868 hw->phy.ops.release(hw);
2875 * e1000_phy_hw_reset_ich8lan - Performs a PHY reset
2876 * @hw: pointer to the HW structure
2879 * This is a function pointer entry point called by drivers
2880 * or other shared routines.
2882 STATIC s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
2884 s32 ret_val = E1000_SUCCESS;
2886 DEBUGFUNC("e1000_phy_hw_reset_ich8lan");
2888 /* Gate automatic PHY configuration by hardware on non-managed 82579 */
2889 if ((hw->mac.type == e1000_pch2lan) &&
2890 !(E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID))
2891 e1000_gate_hw_phy_config_ich8lan(hw, true);
2893 ret_val = e1000_phy_hw_reset_generic(hw);
2897 return e1000_post_phy_reset_ich8lan(hw);
2901 * e1000_set_lplu_state_pchlan - Set Low Power Link Up state
2902 * @hw: pointer to the HW structure
2903 * @active: true to enable LPLU, false to disable
2905 * Sets the LPLU state according to the active flag. For PCH, if OEM write
2906 * bit are disabled in the NVM, writing the LPLU bits in the MAC will not set
2907 * the phy speed. This function will manually set the LPLU bit and restart
2908 * auto-neg as hw would do. D3 and D0 LPLU will call the same function
2909 * since it configures the same bit.
2911 STATIC s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active)
2916 DEBUGFUNC("e1000_set_lplu_state_pchlan");
2918 ret_val = hw->phy.ops.read_reg(hw, HV_OEM_BITS, &oem_reg);
2923 oem_reg |= HV_OEM_BITS_LPLU;
2925 oem_reg &= ~HV_OEM_BITS_LPLU;
2927 if (!hw->phy.ops.check_reset_block(hw))
2928 oem_reg |= HV_OEM_BITS_RESTART_AN;
2930 return hw->phy.ops.write_reg(hw, HV_OEM_BITS, oem_reg);
2934 * e1000_set_d0_lplu_state_ich8lan - Set Low Power Linkup D0 state
2935 * @hw: pointer to the HW structure
2936 * @active: true to enable LPLU, false to disable
2938 * Sets the LPLU D0 state according to the active flag. When
2939 * activating LPLU this function also disables smart speed
2940 * and vice versa. LPLU will not be activated unless the
2941 * device autonegotiation advertisement meets standards of
2942 * either 10 or 10/100 or 10/100/1000 at all duplexes.
2943 * This is a function pointer entry point only called by
2944 * PHY setup routines.
2946 STATIC s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
2948 struct e1000_phy_info *phy = &hw->phy;
2950 s32 ret_val = E1000_SUCCESS;
2953 DEBUGFUNC("e1000_set_d0_lplu_state_ich8lan");
2955 if (phy->type == e1000_phy_ife)
2956 return E1000_SUCCESS;
2958 phy_ctrl = E1000_READ_REG(hw, E1000_PHY_CTRL);
2961 phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU;
2962 E1000_WRITE_REG(hw, E1000_PHY_CTRL, phy_ctrl);
2964 if (phy->type != e1000_phy_igp_3)
2965 return E1000_SUCCESS;
2967 /* Call gig speed drop workaround on LPLU before accessing
2970 if (hw->mac.type == e1000_ich8lan)
2971 e1000_gig_downshift_workaround_ich8lan(hw);
2973 /* When LPLU is enabled, we should disable SmartSpeed */
2974 ret_val = phy->ops.read_reg(hw,
2975 IGP01E1000_PHY_PORT_CONFIG,
2979 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
2980 ret_val = phy->ops.write_reg(hw,
2981 IGP01E1000_PHY_PORT_CONFIG,
2986 phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU;
2987 E1000_WRITE_REG(hw, E1000_PHY_CTRL, phy_ctrl);
2989 if (phy->type != e1000_phy_igp_3)
2990 return E1000_SUCCESS;
2992 /* LPLU and SmartSpeed are mutually exclusive. LPLU is used
2993 * during Dx states where the power conservation is most
2994 * important. During driver activity we should enable
2995 * SmartSpeed, so performance is maintained.
2997 if (phy->smart_speed == e1000_smart_speed_on) {
2998 ret_val = phy->ops.read_reg(hw,
2999 IGP01E1000_PHY_PORT_CONFIG,
3004 data |= IGP01E1000_PSCFR_SMART_SPEED;
3005 ret_val = phy->ops.write_reg(hw,
3006 IGP01E1000_PHY_PORT_CONFIG,
3010 } else if (phy->smart_speed == e1000_smart_speed_off) {
3011 ret_val = phy->ops.read_reg(hw,
3012 IGP01E1000_PHY_PORT_CONFIG,
3017 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
3018 ret_val = phy->ops.write_reg(hw,
3019 IGP01E1000_PHY_PORT_CONFIG,
3026 return E1000_SUCCESS;
3030 * e1000_set_d3_lplu_state_ich8lan - Set Low Power Linkup D3 state
3031 * @hw: pointer to the HW structure
3032 * @active: true to enable LPLU, false to disable
3034 * Sets the LPLU D3 state according to the active flag. When
3035 * activating LPLU this function also disables smart speed
3036 * and vice versa. LPLU will not be activated unless the
3037 * device autonegotiation advertisement meets standards of
3038 * either 10 or 10/100 or 10/100/1000 at all duplexes.
3039 * This is a function pointer entry point only called by
3040 * PHY setup routines.
3042 STATIC s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
3044 struct e1000_phy_info *phy = &hw->phy;
3046 s32 ret_val = E1000_SUCCESS;
3049 DEBUGFUNC("e1000_set_d3_lplu_state_ich8lan");
3051 phy_ctrl = E1000_READ_REG(hw, E1000_PHY_CTRL);
3054 phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU;
3055 E1000_WRITE_REG(hw, E1000_PHY_CTRL, phy_ctrl);
3057 if (phy->type != e1000_phy_igp_3)
3058 return E1000_SUCCESS;
3060 /* LPLU and SmartSpeed are mutually exclusive. LPLU is used
3061 * during Dx states where the power conservation is most
3062 * important. During driver activity we should enable
3063 * SmartSpeed, so performance is maintained.
3065 if (phy->smart_speed == e1000_smart_speed_on) {
3066 ret_val = phy->ops.read_reg(hw,
3067 IGP01E1000_PHY_PORT_CONFIG,
3072 data |= IGP01E1000_PSCFR_SMART_SPEED;
3073 ret_val = phy->ops.write_reg(hw,
3074 IGP01E1000_PHY_PORT_CONFIG,
3078 } else if (phy->smart_speed == e1000_smart_speed_off) {
3079 ret_val = phy->ops.read_reg(hw,
3080 IGP01E1000_PHY_PORT_CONFIG,
3085 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
3086 ret_val = phy->ops.write_reg(hw,
3087 IGP01E1000_PHY_PORT_CONFIG,
3092 } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
3093 (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
3094 (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
3095 phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU;
3096 E1000_WRITE_REG(hw, E1000_PHY_CTRL, phy_ctrl);
3098 if (phy->type != e1000_phy_igp_3)
3099 return E1000_SUCCESS;
3101 /* Call gig speed drop workaround on LPLU before accessing
3104 if (hw->mac.type == e1000_ich8lan)
3105 e1000_gig_downshift_workaround_ich8lan(hw);
3107 /* When LPLU is enabled, we should disable SmartSpeed */
3108 ret_val = phy->ops.read_reg(hw,
3109 IGP01E1000_PHY_PORT_CONFIG,
3114 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
3115 ret_val = phy->ops.write_reg(hw,
3116 IGP01E1000_PHY_PORT_CONFIG,
3124 * e1000_valid_nvm_bank_detect_ich8lan - finds out the valid bank 0 or 1
3125 * @hw: pointer to the HW structure
3126 * @bank: pointer to the variable that returns the active bank
3128 * Reads signature byte from the NVM using the flash access registers.
3129 * Word 0x13 bits 15:14 = 10b indicate a valid signature for that bank.
3131 STATIC s32 e1000_valid_nvm_bank_detect_ich8lan(struct e1000_hw *hw, u32 *bank)
3134 struct e1000_nvm_info *nvm = &hw->nvm;
3135 u32 bank1_offset = nvm->flash_bank_size * sizeof(u16);
3136 u32 act_offset = E1000_ICH_NVM_SIG_WORD * 2 + 1;
3140 DEBUGFUNC("e1000_valid_nvm_bank_detect_ich8lan");
3142 switch (hw->mac.type) {
3145 eecd = E1000_READ_REG(hw, E1000_EECD);
3146 if ((eecd & E1000_EECD_SEC1VAL_VALID_MASK) ==
3147 E1000_EECD_SEC1VAL_VALID_MASK) {
3148 if (eecd & E1000_EECD_SEC1VAL)
3153 return E1000_SUCCESS;
3155 DEBUGOUT("Unable to determine valid NVM bank via EEC - reading flash signature\n");
3158 /* set bank to 0 in case flash read fails */
3162 ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset,
3166 if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
3167 E1000_ICH_NVM_SIG_VALUE) {
3169 return E1000_SUCCESS;
3173 ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset +
3178 if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
3179 E1000_ICH_NVM_SIG_VALUE) {
3181 return E1000_SUCCESS;
3184 DEBUGOUT("ERROR: No valid NVM bank present\n");
3185 return -E1000_ERR_NVM;
3190 * e1000_read_nvm_ich8lan - Read word(s) from the NVM
3191 * @hw: pointer to the HW structure
3192 * @offset: The offset (in bytes) of the word(s) to read.
3193 * @words: Size of data to read in words
3194 * @data: Pointer to the word(s) to read at offset.
3196 * Reads a word(s) from the NVM using the flash access registers.
3198 STATIC s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
3201 struct e1000_nvm_info *nvm = &hw->nvm;
3202 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3204 s32 ret_val = E1000_SUCCESS;
3208 DEBUGFUNC("e1000_read_nvm_ich8lan");
3210 if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
3212 DEBUGOUT("nvm parameter(s) out of bounds\n");
3213 ret_val = -E1000_ERR_NVM;
3217 nvm->ops.acquire(hw);
3219 ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
3220 if (ret_val != E1000_SUCCESS) {
3221 DEBUGOUT("Could not detect valid bank, assuming bank 0\n");
3225 act_offset = (bank) ? nvm->flash_bank_size : 0;
3226 act_offset += offset;
3228 ret_val = E1000_SUCCESS;
3229 for (i = 0; i < words; i++) {
3230 if (dev_spec->shadow_ram[offset+i].modified) {
3231 data[i] = dev_spec->shadow_ram[offset+i].value;
3233 ret_val = e1000_read_flash_word_ich8lan(hw,
3242 nvm->ops.release(hw);
3246 DEBUGOUT1("NVM read error: %d\n", ret_val);
3252 * e1000_flash_cycle_init_ich8lan - Initialize flash
3253 * @hw: pointer to the HW structure
3255 * This function does initial flash setup so that a new read/write/erase cycle
3258 STATIC s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw)
3260 union ich8_hws_flash_status hsfsts;
3261 s32 ret_val = -E1000_ERR_NVM;
3263 DEBUGFUNC("e1000_flash_cycle_init_ich8lan");
3265 hsfsts.regval = E1000_READ_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
3267 /* Check if the flash descriptor is valid */
3268 if (!hsfsts.hsf_status.fldesvalid) {
3269 DEBUGOUT("Flash descriptor invalid. SW Sequencing must be used.\n");
3270 return -E1000_ERR_NVM;
3273 /* Clear FCERR and DAEL in hw status by writing 1 */
3274 hsfsts.hsf_status.flcerr = 1;
3275 hsfsts.hsf_status.dael = 1;
3276 E1000_WRITE_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval);
3278 /* Either we should have a hardware SPI cycle in progress
3279 * bit to check against, in order to start a new cycle or
3280 * FDONE bit should be changed in the hardware so that it
3281 * is 1 after hardware reset, which can then be used as an
3282 * indication whether a cycle is in progress or has been
3286 if (!hsfsts.hsf_status.flcinprog) {
3287 /* There is no cycle running at present,
3288 * so we can start a cycle.
3289 * Begin by setting Flash Cycle Done.
3291 hsfsts.hsf_status.flcdone = 1;
3292 E1000_WRITE_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval);
3293 ret_val = E1000_SUCCESS;
3297 /* Otherwise poll for sometime so the current
3298 * cycle has a chance to end before giving up.
3300 for (i = 0; i < ICH_FLASH_READ_COMMAND_TIMEOUT; i++) {
3301 hsfsts.regval = E1000_READ_FLASH_REG16(hw,
3303 if (!hsfsts.hsf_status.flcinprog) {
3304 ret_val = E1000_SUCCESS;
3309 if (ret_val == E1000_SUCCESS) {
3310 /* Successful in waiting for previous cycle to timeout,
3311 * now set the Flash Cycle Done.
3313 hsfsts.hsf_status.flcdone = 1;
3314 E1000_WRITE_FLASH_REG16(hw, ICH_FLASH_HSFSTS,
3317 DEBUGOUT("Flash controller busy, cannot get access\n");
3325 * e1000_flash_cycle_ich8lan - Starts flash cycle (read/write/erase)
3326 * @hw: pointer to the HW structure
3327 * @timeout: maximum time to wait for completion
3329 * This function starts a flash cycle and waits for its completion.
3331 STATIC s32 e1000_flash_cycle_ich8lan(struct e1000_hw *hw, u32 timeout)
3333 union ich8_hws_flash_ctrl hsflctl;
3334 union ich8_hws_flash_status hsfsts;
3337 DEBUGFUNC("e1000_flash_cycle_ich8lan");
3339 /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */
3340 hsflctl.regval = E1000_READ_FLASH_REG16(hw, ICH_FLASH_HSFCTL);
3341 hsflctl.hsf_ctrl.flcgo = 1;
3343 E1000_WRITE_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval);
3345 /* wait till FDONE bit is set to 1 */
3347 hsfsts.regval = E1000_READ_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
3348 if (hsfsts.hsf_status.flcdone)
3351 } while (i++ < timeout);
3353 if (hsfsts.hsf_status.flcdone && !hsfsts.hsf_status.flcerr)
3354 return E1000_SUCCESS;
3356 return -E1000_ERR_NVM;
3360 * e1000_read_flash_word_ich8lan - Read word from flash
3361 * @hw: pointer to the HW structure
3362 * @offset: offset to data location
3363 * @data: pointer to the location for storing the data
3365 * Reads the flash word at offset into data. Offset is converted
3366 * to bytes before read.
3368 STATIC s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
3371 DEBUGFUNC("e1000_read_flash_word_ich8lan");
3374 return -E1000_ERR_NVM;
3376 /* Must convert offset into bytes. */
3379 return e1000_read_flash_data_ich8lan(hw, offset, 2, data);
3383 * e1000_read_flash_byte_ich8lan - Read byte from flash
3384 * @hw: pointer to the HW structure
3385 * @offset: The offset of the byte to read.
3386 * @data: Pointer to a byte to store the value read.
3388 * Reads a single byte from the NVM using the flash access registers.
3390 STATIC s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
3396 ret_val = e1000_read_flash_data_ich8lan(hw, offset, 1, &word);
3403 return E1000_SUCCESS;
3407 * e1000_read_flash_data_ich8lan - Read byte or word from NVM
3408 * @hw: pointer to the HW structure
3409 * @offset: The offset (in bytes) of the byte or word to read.
3410 * @size: Size of data to read, 1=byte 2=word
3411 * @data: Pointer to the word to store the value read.
3413 * Reads a byte or word from the NVM using the flash access registers.
3415 STATIC s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
3418 union ich8_hws_flash_status hsfsts;
3419 union ich8_hws_flash_ctrl hsflctl;
3420 u32 flash_linear_addr;
3422 s32 ret_val = -E1000_ERR_NVM;
3425 DEBUGFUNC("e1000_read_flash_data_ich8lan");
3427 if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK)
3428 return -E1000_ERR_NVM;
3429 flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) +
3430 hw->nvm.flash_base_addr);
3435 ret_val = e1000_flash_cycle_init_ich8lan(hw);
3436 if (ret_val != E1000_SUCCESS)
3438 hsflctl.regval = E1000_READ_FLASH_REG16(hw, ICH_FLASH_HSFCTL);
3440 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
3441 hsflctl.hsf_ctrl.fldbcount = size - 1;
3442 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ;
3443 E1000_WRITE_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval);
3445 E1000_WRITE_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_addr);
3448 e1000_flash_cycle_ich8lan(hw,
3449 ICH_FLASH_READ_COMMAND_TIMEOUT);
3451 /* Check if FCERR is set to 1, if set to 1, clear it
3452 * and try the whole sequence a few more times, else
3453 * read in (shift in) the Flash Data0, the order is
3454 * least significant byte first msb to lsb
3456 if (ret_val == E1000_SUCCESS) {
3457 flash_data = E1000_READ_FLASH_REG(hw, ICH_FLASH_FDATA0);
3459 *data = (u8)(flash_data & 0x000000FF);
3461 *data = (u16)(flash_data & 0x0000FFFF);
3464 /* If we've gotten here, then things are probably
3465 * completely hosed, but if the error condition is
3466 * detected, it won't hurt to give it another try...
3467 * ICH_FLASH_CYCLE_REPEAT_COUNT times.
3469 hsfsts.regval = E1000_READ_FLASH_REG16(hw,
3471 if (hsfsts.hsf_status.flcerr) {
3472 /* Repeat for some time before giving up. */
3474 } else if (!hsfsts.hsf_status.flcdone) {
3475 DEBUGOUT("Timeout error - flash cycle did not complete.\n");
3479 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
3485 * e1000_write_nvm_ich8lan - Write word(s) to the NVM
3486 * @hw: pointer to the HW structure
3487 * @offset: The offset (in bytes) of the word(s) to write.
3488 * @words: Size of data to write in words
3489 * @data: Pointer to the word(s) to write at offset.
3491 * Writes a byte or word to the NVM using the flash access registers.
3493 STATIC s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
3496 struct e1000_nvm_info *nvm = &hw->nvm;
3497 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3500 DEBUGFUNC("e1000_write_nvm_ich8lan");
3502 if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
3504 DEBUGOUT("nvm parameter(s) out of bounds\n");
3505 return -E1000_ERR_NVM;
3508 nvm->ops.acquire(hw);
3510 for (i = 0; i < words; i++) {
3511 dev_spec->shadow_ram[offset+i].modified = true;
3512 dev_spec->shadow_ram[offset+i].value = data[i];
3515 nvm->ops.release(hw);
3517 return E1000_SUCCESS;
3521 * e1000_update_nvm_checksum_ich8lan - Update the checksum for NVM
3522 * @hw: pointer to the HW structure
3524 * The NVM checksum is updated by calling the generic update_nvm_checksum,
3525 * which writes the checksum to the shadow ram. The changes in the shadow
3526 * ram are then committed to the EEPROM by processing each bank at a time
3527 * checking for the modified bit and writing only the pending changes.
3528 * After a successful commit, the shadow ram is cleared and is ready for
3531 STATIC s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
3533 struct e1000_nvm_info *nvm = &hw->nvm;
3534 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3535 u32 i, act_offset, new_bank_offset, old_bank_offset, bank;
3539 DEBUGFUNC("e1000_update_nvm_checksum_ich8lan");
3541 ret_val = e1000_update_nvm_checksum_generic(hw);
3545 if (nvm->type != e1000_nvm_flash_sw)
3548 nvm->ops.acquire(hw);
3550 /* We're writing to the opposite bank so if we're on bank 1,
3551 * write to bank 0 etc. We also need to erase the segment that
3552 * is going to be written
3554 ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
3555 if (ret_val != E1000_SUCCESS) {
3556 DEBUGOUT("Could not detect valid bank, assuming bank 0\n");
3561 new_bank_offset = nvm->flash_bank_size;
3562 old_bank_offset = 0;
3563 ret_val = e1000_erase_flash_bank_ich8lan(hw, 1);
3567 old_bank_offset = nvm->flash_bank_size;
3568 new_bank_offset = 0;
3569 ret_val = e1000_erase_flash_bank_ich8lan(hw, 0);
3574 for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) {
3575 /* Determine whether to write the value stored
3576 * in the other NVM bank or a modified value stored
3579 if (dev_spec->shadow_ram[i].modified) {
3580 data = dev_spec->shadow_ram[i].value;
3582 ret_val = e1000_read_flash_word_ich8lan(hw, i +
3589 /* If the word is 0x13, then make sure the signature bits
3590 * (15:14) are 11b until the commit has completed.
3591 * This will allow us to write 10b which indicates the
3592 * signature is valid. We want to do this after the write
3593 * has completed so that we don't mark the segment valid
3594 * while the write is still in progress
3596 if (i == E1000_ICH_NVM_SIG_WORD)
3597 data |= E1000_ICH_NVM_SIG_MASK;
3599 /* Convert offset to bytes. */
3600 act_offset = (i + new_bank_offset) << 1;
3603 /* Write the bytes to the new bank. */
3604 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
3611 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
3618 /* Don't bother writing the segment valid bits if sector
3619 * programming failed.
3622 DEBUGOUT("Flash commit failed.\n");
3626 /* Finally validate the new segment by setting bit 15:14
3627 * to 10b in word 0x13 , this can be done without an
3628 * erase as well since these bits are 11 to start with
3629 * and we need to change bit 14 to 0b
3631 act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD;
3632 ret_val = e1000_read_flash_word_ich8lan(hw, act_offset, &data);
3637 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
3643 /* And invalidate the previously valid segment by setting
3644 * its signature word (0x13) high_byte to 0b. This can be
3645 * done without an erase because flash erase sets all bits
3646 * to 1's. We can write 1's to 0's without an erase
3648 act_offset = (old_bank_offset + E1000_ICH_NVM_SIG_WORD) * 2 + 1;
3649 ret_val = e1000_retry_write_flash_byte_ich8lan(hw, act_offset, 0);
3653 /* Great! Everything worked, we can now clear the cached entries. */
3654 for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) {
3655 dev_spec->shadow_ram[i].modified = false;
3656 dev_spec->shadow_ram[i].value = 0xFFFF;
3660 nvm->ops.release(hw);
3662 /* Reload the EEPROM, or else modifications will not appear
3663 * until after the next adapter reset.
3666 nvm->ops.reload(hw);
3672 DEBUGOUT1("NVM update error: %d\n", ret_val);
3678 * e1000_validate_nvm_checksum_ich8lan - Validate EEPROM checksum
3679 * @hw: pointer to the HW structure
3681 * Check to see if checksum needs to be fixed by reading bit 6 in word 0x19.
3682 * If the bit is 0, that the EEPROM had been modified, but the checksum was not
3683 * calculated, in which case we need to calculate the checksum and set bit 6.
3685 STATIC s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw)
3690 u16 valid_csum_mask;
3692 DEBUGFUNC("e1000_validate_nvm_checksum_ich8lan");
3694 /* Read NVM and check Invalid Image CSUM bit. If this bit is 0,
3695 * the checksum needs to be fixed. This bit is an indication that
3696 * the NVM was prepared by OEM software and did not calculate
3697 * the checksum...a likely scenario.
3699 switch (hw->mac.type) {
3702 valid_csum_mask = NVM_COMPAT_VALID_CSUM;
3705 word = NVM_FUTURE_INIT_WORD1;
3706 valid_csum_mask = NVM_FUTURE_INIT_WORD1_VALID_CSUM;
3710 ret_val = hw->nvm.ops.read(hw, word, 1, &data);
3714 if (!(data & valid_csum_mask)) {
3715 data |= valid_csum_mask;
3716 ret_val = hw->nvm.ops.write(hw, word, 1, &data);
3719 ret_val = hw->nvm.ops.update(hw);
3724 return e1000_validate_nvm_checksum_generic(hw);
3728 * e1000_write_flash_data_ich8lan - Writes bytes to the NVM
3729 * @hw: pointer to the HW structure
3730 * @offset: The offset (in bytes) of the byte/word to read.
3731 * @size: Size of data to read, 1=byte 2=word
3732 * @data: The byte(s) to write to the NVM.
3734 * Writes one/two bytes to the NVM using the flash access registers.
3736 STATIC s32 e1000_write_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
3739 union ich8_hws_flash_status hsfsts;
3740 union ich8_hws_flash_ctrl hsflctl;
3741 u32 flash_linear_addr;
3746 DEBUGFUNC("e1000_write_ich8_data");
3748 if (size < 1 || size > 2 || data > size * 0xff ||
3749 offset > ICH_FLASH_LINEAR_ADDR_MASK)
3750 return -E1000_ERR_NVM;
3752 flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) +
3753 hw->nvm.flash_base_addr);
3758 ret_val = e1000_flash_cycle_init_ich8lan(hw);
3759 if (ret_val != E1000_SUCCESS)
3761 hsflctl.regval = E1000_READ_FLASH_REG16(hw, ICH_FLASH_HSFCTL);
3763 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
3764 hsflctl.hsf_ctrl.fldbcount = size - 1;
3765 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE;
3766 E1000_WRITE_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval);
3768 E1000_WRITE_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_addr);
3771 flash_data = (u32)data & 0x00FF;
3773 flash_data = (u32)data;
3775 E1000_WRITE_FLASH_REG(hw, ICH_FLASH_FDATA0, flash_data);
3777 /* check if FCERR is set to 1 , if set to 1, clear it
3778 * and try the whole sequence a few more times else done
3781 e1000_flash_cycle_ich8lan(hw,
3782 ICH_FLASH_WRITE_COMMAND_TIMEOUT);
3783 if (ret_val == E1000_SUCCESS)
3786 /* If we're here, then things are most likely
3787 * completely hosed, but if the error condition
3788 * is detected, it won't hurt to give it another
3789 * try...ICH_FLASH_CYCLE_REPEAT_COUNT times.
3791 hsfsts.regval = E1000_READ_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
3792 if (hsfsts.hsf_status.flcerr)
3793 /* Repeat for some time before giving up. */
3795 if (!hsfsts.hsf_status.flcdone) {
3796 DEBUGOUT("Timeout error - flash cycle did not complete.\n");
3799 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
3805 * e1000_write_flash_byte_ich8lan - Write a single byte to NVM
3806 * @hw: pointer to the HW structure
3807 * @offset: The index of the byte to read.
3808 * @data: The byte to write to the NVM.
3810 * Writes a single byte to the NVM using the flash access registers.
3812 STATIC s32 e1000_write_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
3815 u16 word = (u16)data;
3817 DEBUGFUNC("e1000_write_flash_byte_ich8lan");
3819 return e1000_write_flash_data_ich8lan(hw, offset, 1, word);
3823 * e1000_retry_write_flash_byte_ich8lan - Writes a single byte to NVM
3824 * @hw: pointer to the HW structure
3825 * @offset: The offset of the byte to write.
3826 * @byte: The byte to write to the NVM.
3828 * Writes a single byte to the NVM using the flash access registers.
3829 * Goes through a retry algorithm before giving up.
3831 STATIC s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
3832 u32 offset, u8 byte)
3835 u16 program_retries;
3837 DEBUGFUNC("e1000_retry_write_flash_byte_ich8lan");
3839 ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
3843 for (program_retries = 0; program_retries < 100; program_retries++) {
3844 DEBUGOUT2("Retrying Byte %2.2X at offset %u\n", byte, offset);
3846 ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
3847 if (ret_val == E1000_SUCCESS)
3850 if (program_retries == 100)
3851 return -E1000_ERR_NVM;
3853 return E1000_SUCCESS;
3857 * e1000_erase_flash_bank_ich8lan - Erase a bank (4k) from NVM
3858 * @hw: pointer to the HW structure
3859 * @bank: 0 for first bank, 1 for second bank, etc.
3861 * Erases the bank specified. Each bank is a 4k block. Banks are 0 based.
3862 * bank N is 4096 * N + flash_reg_addr.
3864 STATIC s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank)
3866 struct e1000_nvm_info *nvm = &hw->nvm;
3867 union ich8_hws_flash_status hsfsts;
3868 union ich8_hws_flash_ctrl hsflctl;
3869 u32 flash_linear_addr;
3870 /* bank size is in 16bit words - adjust to bytes */
3871 u32 flash_bank_size = nvm->flash_bank_size * 2;
3874 s32 j, iteration, sector_size;
3876 DEBUGFUNC("e1000_erase_flash_bank_ich8lan");
3878 hsfsts.regval = E1000_READ_FLASH_REG16(hw, ICH_FLASH_HSFSTS);
3880 /* Determine HW Sector size: Read BERASE bits of hw flash status
3882 * 00: The Hw sector is 256 bytes, hence we need to erase 16
3883 * consecutive sectors. The start index for the nth Hw sector
3884 * can be calculated as = bank * 4096 + n * 256
3885 * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector.
3886 * The start index for the nth Hw sector can be calculated
3888 * 10: The Hw sector is 8K bytes, nth sector = bank * 8192
3889 * (ich9 only, otherwise error condition)
3890 * 11: The Hw sector is 64K bytes, nth sector = bank * 65536
3892 switch (hsfsts.hsf_status.berasesz) {
3894 /* Hw sector size 256 */
3895 sector_size = ICH_FLASH_SEG_SIZE_256;
3896 iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_256;
3899 sector_size = ICH_FLASH_SEG_SIZE_4K;
3903 sector_size = ICH_FLASH_SEG_SIZE_8K;
3907 sector_size = ICH_FLASH_SEG_SIZE_64K;
3911 return -E1000_ERR_NVM;
3914 /* Start with the base address, then add the sector offset. */
3915 flash_linear_addr = hw->nvm.flash_base_addr;
3916 flash_linear_addr += (bank) ? flash_bank_size : 0;
3918 for (j = 0; j < iteration; j++) {
3920 u32 timeout = ICH_FLASH_ERASE_COMMAND_TIMEOUT;
3923 ret_val = e1000_flash_cycle_init_ich8lan(hw);
3927 /* Write a value 11 (block Erase) in Flash
3928 * Cycle field in hw flash control
3931 E1000_READ_FLASH_REG16(hw, ICH_FLASH_HSFCTL);
3933 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE;
3934 E1000_WRITE_FLASH_REG16(hw, ICH_FLASH_HSFCTL,
3937 /* Write the last 24 bits of an index within the
3938 * block into Flash Linear address field in Flash
3941 flash_linear_addr += (j * sector_size);
3942 E1000_WRITE_FLASH_REG(hw, ICH_FLASH_FADDR,
3945 ret_val = e1000_flash_cycle_ich8lan(hw, timeout);
3946 if (ret_val == E1000_SUCCESS)
3949 /* Check if FCERR is set to 1. If 1,
3950 * clear it and try the whole sequence
3951 * a few more times else Done
3953 hsfsts.regval = E1000_READ_FLASH_REG16(hw,
3955 if (hsfsts.hsf_status.flcerr)
3956 /* repeat for some time before giving up */
3958 else if (!hsfsts.hsf_status.flcdone)
3960 } while (++count < ICH_FLASH_CYCLE_REPEAT_COUNT);
3963 return E1000_SUCCESS;
3967 * e1000_valid_led_default_ich8lan - Set the default LED settings
3968 * @hw: pointer to the HW structure
3969 * @data: Pointer to the LED settings
3971 * Reads the LED default settings from the NVM to data. If the NVM LED
3972 * settings is all 0's or F's, set the LED default to a valid LED default
3975 STATIC s32 e1000_valid_led_default_ich8lan(struct e1000_hw *hw, u16 *data)
3979 DEBUGFUNC("e1000_valid_led_default_ich8lan");
3981 ret_val = hw->nvm.ops.read(hw, NVM_ID_LED_SETTINGS, 1, data);
3983 DEBUGOUT("NVM Read Error\n");
3987 if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF)
3988 *data = ID_LED_DEFAULT_ICH8LAN;
3990 return E1000_SUCCESS;
3994 * e1000_id_led_init_pchlan - store LED configurations
3995 * @hw: pointer to the HW structure
3997 * PCH does not control LEDs via the LEDCTL register, rather it uses
3998 * the PHY LED configuration register.
4000 * PCH also does not have an "always on" or "always off" mode which
4001 * complicates the ID feature. Instead of using the "on" mode to indicate
4002 * in ledctl_mode2 the LEDs to use for ID (see e1000_id_led_init_generic()),
4003 * use "link_up" mode. The LEDs will still ID on request if there is no
4004 * link based on logic in e1000_led_[on|off]_pchlan().
4006 STATIC s32 e1000_id_led_init_pchlan(struct e1000_hw *hw)
4008 struct e1000_mac_info *mac = &hw->mac;
4010 const u32 ledctl_on = E1000_LEDCTL_MODE_LINK_UP;
4011 const u32 ledctl_off = E1000_LEDCTL_MODE_LINK_UP | E1000_PHY_LED0_IVRT;
4012 u16 data, i, temp, shift;
4014 DEBUGFUNC("e1000_id_led_init_pchlan");
4016 /* Get default ID LED modes */
4017 ret_val = hw->nvm.ops.valid_led_default(hw, &data);
4021 mac->ledctl_default = E1000_READ_REG(hw, E1000_LEDCTL);
4022 mac->ledctl_mode1 = mac->ledctl_default;
4023 mac->ledctl_mode2 = mac->ledctl_default;
4025 for (i = 0; i < 4; i++) {
4026 temp = (data >> (i << 2)) & E1000_LEDCTL_LED0_MODE_MASK;
4029 case ID_LED_ON1_DEF2:
4030 case ID_LED_ON1_ON2:
4031 case ID_LED_ON1_OFF2:
4032 mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
4033 mac->ledctl_mode1 |= (ledctl_on << shift);
4035 case ID_LED_OFF1_DEF2:
4036 case ID_LED_OFF1_ON2:
4037 case ID_LED_OFF1_OFF2:
4038 mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
4039 mac->ledctl_mode1 |= (ledctl_off << shift);
4046 case ID_LED_DEF1_ON2:
4047 case ID_LED_ON1_ON2:
4048 case ID_LED_OFF1_ON2:
4049 mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
4050 mac->ledctl_mode2 |= (ledctl_on << shift);
4052 case ID_LED_DEF1_OFF2:
4053 case ID_LED_ON1_OFF2:
4054 case ID_LED_OFF1_OFF2:
4055 mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
4056 mac->ledctl_mode2 |= (ledctl_off << shift);
4064 return E1000_SUCCESS;
4068 * e1000_get_bus_info_ich8lan - Get/Set the bus type and width
4069 * @hw: pointer to the HW structure
4071 * ICH8 use the PCI Express bus, but does not contain a PCI Express Capability
4072 * register, so the the bus width is hard coded.
4074 STATIC s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw)
4076 struct e1000_bus_info *bus = &hw->bus;
4079 DEBUGFUNC("e1000_get_bus_info_ich8lan");
4081 ret_val = e1000_get_bus_info_pcie_generic(hw);
4083 /* ICH devices are "PCI Express"-ish. They have
4084 * a configuration space, but do not contain
4085 * PCI Express Capability registers, so bus width
4086 * must be hardcoded.
4088 if (bus->width == e1000_bus_width_unknown)
4089 bus->width = e1000_bus_width_pcie_x1;
4095 * e1000_reset_hw_ich8lan - Reset the hardware
4096 * @hw: pointer to the HW structure
4098 * Does a full reset of the hardware which includes a reset of the PHY and
4101 STATIC s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
4103 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
4108 DEBUGFUNC("e1000_reset_hw_ich8lan");
4110 /* Prevent the PCI-E bus from sticking if there is no TLP connection
4111 * on the last TLP read/write transaction when MAC is reset.
4113 ret_val = e1000_disable_pcie_master_generic(hw);
4115 DEBUGOUT("PCI-E Master disable polling has failed.\n");
4117 DEBUGOUT("Masking off all interrupts\n");
4118 E1000_WRITE_REG(hw, E1000_IMC, 0xffffffff);
4120 /* Disable the Transmit and Receive units. Then delay to allow
4121 * any pending transactions to complete before we hit the MAC
4122 * with the global reset.
4124 E1000_WRITE_REG(hw, E1000_RCTL, 0);
4125 E1000_WRITE_REG(hw, E1000_TCTL, E1000_TCTL_PSP);
4126 E1000_WRITE_FLUSH(hw);
4130 /* Workaround for ICH8 bit corruption issue in FIFO memory */
4131 if (hw->mac.type == e1000_ich8lan) {
4132 /* Set Tx and Rx buffer allocation to 8k apiece. */
4133 E1000_WRITE_REG(hw, E1000_PBA, E1000_PBA_8K);
4134 /* Set Packet Buffer Size to 16k. */
4135 E1000_WRITE_REG(hw, E1000_PBS, E1000_PBS_16K);
4138 if (hw->mac.type == e1000_pchlan) {
4139 /* Save the NVM K1 bit setting*/
4140 ret_val = e1000_read_nvm(hw, E1000_NVM_K1_CONFIG, 1, &kum_cfg);
4144 if (kum_cfg & E1000_NVM_K1_ENABLE)
4145 dev_spec->nvm_k1_enabled = true;
4147 dev_spec->nvm_k1_enabled = false;
4150 ctrl = E1000_READ_REG(hw, E1000_CTRL);
4152 if (!hw->phy.ops.check_reset_block(hw)) {
4153 /* Full-chip reset requires MAC and PHY reset at the same
4154 * time to make sure the interface between MAC and the
4155 * external PHY is reset.
4157 ctrl |= E1000_CTRL_PHY_RST;
4159 /* Gate automatic PHY configuration by hardware on
4162 if ((hw->mac.type == e1000_pch2lan) &&
4163 !(E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID))
4164 e1000_gate_hw_phy_config_ich8lan(hw, true);
4166 ret_val = e1000_acquire_swflag_ich8lan(hw);
4167 DEBUGOUT("Issuing a global reset to ich8lan\n");
4168 E1000_WRITE_REG(hw, E1000_CTRL, (ctrl | E1000_CTRL_RST));
4169 /* cannot issue a flush here because it hangs the hardware */
4172 /* Set Phy Config Counter to 50msec */
4173 if (hw->mac.type == e1000_pch2lan) {
4174 reg = E1000_READ_REG(hw, E1000_FEXTNVM3);
4175 reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK;
4176 reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC;
4177 E1000_WRITE_REG(hw, E1000_FEXTNVM3, reg);
4181 E1000_MUTEX_UNLOCK(&hw->dev_spec.ich8lan.swflag_mutex);
4183 if (ctrl & E1000_CTRL_PHY_RST) {
4184 ret_val = hw->phy.ops.get_cfg_done(hw);
4188 ret_val = e1000_post_phy_reset_ich8lan(hw);
4193 /* For PCH, this write will make sure that any noise
4194 * will be detected as a CRC error and be dropped rather than show up
4195 * as a bad packet to the DMA engine.
4197 if (hw->mac.type == e1000_pchlan)
4198 E1000_WRITE_REG(hw, E1000_CRC_OFFSET, 0x65656565);
4200 E1000_WRITE_REG(hw, E1000_IMC, 0xffffffff);
4201 E1000_READ_REG(hw, E1000_ICR);
4203 reg = E1000_READ_REG(hw, E1000_KABGTXD);
4204 reg |= E1000_KABGTXD_BGSQLBIAS;
4205 E1000_WRITE_REG(hw, E1000_KABGTXD, reg);
4207 return E1000_SUCCESS;
4211 * e1000_init_hw_ich8lan - Initialize the hardware
4212 * @hw: pointer to the HW structure
4214 * Prepares the hardware for transmit and receive by doing the following:
4215 * - initialize hardware bits
4216 * - initialize LED identification
4217 * - setup receive address registers
4218 * - setup flow control
4219 * - setup transmit descriptors
4220 * - clear statistics
4222 STATIC s32 e1000_init_hw_ich8lan(struct e1000_hw *hw)
4224 struct e1000_mac_info *mac = &hw->mac;
4225 u32 ctrl_ext, txdctl, snoop;
4229 DEBUGFUNC("e1000_init_hw_ich8lan");
4231 e1000_initialize_hw_bits_ich8lan(hw);
4233 /* Initialize identification LED */
4234 ret_val = mac->ops.id_led_init(hw);
4235 /* An error is not fatal and we should not stop init due to this */
4237 DEBUGOUT("Error initializing identification LED\n");
4239 /* Setup the receive address. */
4240 e1000_init_rx_addrs_generic(hw, mac->rar_entry_count);
4242 /* Zero out the Multicast HASH table */
4243 DEBUGOUT("Zeroing the MTA\n");
4244 for (i = 0; i < mac->mta_reg_count; i++)
4245 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
4247 /* The 82578 Rx buffer will stall if wakeup is enabled in host and
4248 * the ME. Disable wakeup by clearing the host wakeup bit.
4249 * Reset the phy after disabling host wakeup to reset the Rx buffer.
4251 if (hw->phy.type == e1000_phy_82578) {
4252 hw->phy.ops.read_reg(hw, BM_PORT_GEN_CFG, &i);
4253 i &= ~BM_WUC_HOST_WU_BIT;
4254 hw->phy.ops.write_reg(hw, BM_PORT_GEN_CFG, i);
4255 ret_val = e1000_phy_hw_reset_ich8lan(hw);
4260 /* Setup link and flow control */
4261 ret_val = mac->ops.setup_link(hw);
4263 /* Set the transmit descriptor write-back policy for both queues */
4264 txdctl = E1000_READ_REG(hw, E1000_TXDCTL(0));
4265 txdctl = ((txdctl & ~E1000_TXDCTL_WTHRESH) |
4266 E1000_TXDCTL_FULL_TX_DESC_WB);
4267 txdctl = ((txdctl & ~E1000_TXDCTL_PTHRESH) |
4268 E1000_TXDCTL_MAX_TX_DESC_PREFETCH);
4269 E1000_WRITE_REG(hw, E1000_TXDCTL(0), txdctl);
4270 txdctl = E1000_READ_REG(hw, E1000_TXDCTL(1));
4271 txdctl = ((txdctl & ~E1000_TXDCTL_WTHRESH) |
4272 E1000_TXDCTL_FULL_TX_DESC_WB);
4273 txdctl = ((txdctl & ~E1000_TXDCTL_PTHRESH) |
4274 E1000_TXDCTL_MAX_TX_DESC_PREFETCH);
4275 E1000_WRITE_REG(hw, E1000_TXDCTL(1), txdctl);
4277 /* ICH8 has opposite polarity of no_snoop bits.
4278 * By default, we should use snoop behavior.
4280 if (mac->type == e1000_ich8lan)
4281 snoop = PCIE_ICH8_SNOOP_ALL;
4283 snoop = (u32) ~(PCIE_NO_SNOOP_ALL);
4284 e1000_set_pcie_no_snoop_generic(hw, snoop);
4286 ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
4287 ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
4288 E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
4290 /* Clear all of the statistics registers (clear on read). It is
4291 * important that we do this after we have tried to establish link
4292 * because the symbol error count will increment wildly if there
4295 e1000_clear_hw_cntrs_ich8lan(hw);
4301 * e1000_initialize_hw_bits_ich8lan - Initialize required hardware bits
4302 * @hw: pointer to the HW structure
4304 * Sets/Clears required hardware bits necessary for correctly setting up the
4305 * hardware for transmit and receive.
4307 STATIC void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw)
4311 DEBUGFUNC("e1000_initialize_hw_bits_ich8lan");
4313 /* Extended Device Control */
4314 reg = E1000_READ_REG(hw, E1000_CTRL_EXT);
4316 /* Enable PHY low-power state when MAC is at D3 w/o WoL */
4317 if (hw->mac.type >= e1000_pchlan)
4318 reg |= E1000_CTRL_EXT_PHYPDEN;
4319 E1000_WRITE_REG(hw, E1000_CTRL_EXT, reg);
4321 /* Transmit Descriptor Control 0 */
4322 reg = E1000_READ_REG(hw, E1000_TXDCTL(0));
4324 E1000_WRITE_REG(hw, E1000_TXDCTL(0), reg);
4326 /* Transmit Descriptor Control 1 */
4327 reg = E1000_READ_REG(hw, E1000_TXDCTL(1));
4329 E1000_WRITE_REG(hw, E1000_TXDCTL(1), reg);
4331 /* Transmit Arbitration Control 0 */
4332 reg = E1000_READ_REG(hw, E1000_TARC(0));
4333 if (hw->mac.type == e1000_ich8lan)
4334 reg |= (1 << 28) | (1 << 29);
4335 reg |= (1 << 23) | (1 << 24) | (1 << 26) | (1 << 27);
4336 E1000_WRITE_REG(hw, E1000_TARC(0), reg);
4338 /* Transmit Arbitration Control 1 */
4339 reg = E1000_READ_REG(hw, E1000_TARC(1));
4340 if (E1000_READ_REG(hw, E1000_TCTL) & E1000_TCTL_MULR)
4344 reg |= (1 << 24) | (1 << 26) | (1 << 30);
4345 E1000_WRITE_REG(hw, E1000_TARC(1), reg);
4348 if (hw->mac.type == e1000_ich8lan) {
4349 reg = E1000_READ_REG(hw, E1000_STATUS);
4351 E1000_WRITE_REG(hw, E1000_STATUS, reg);
4354 /* work-around descriptor data corruption issue during nfs v2 udp
4355 * traffic, just disable the nfs filtering capability
4357 reg = E1000_READ_REG(hw, E1000_RFCTL);
4358 reg |= (E1000_RFCTL_NFSW_DIS | E1000_RFCTL_NFSR_DIS);
4360 /* Disable IPv6 extension header parsing because some malformed
4361 * IPv6 headers can hang the Rx.
4363 if (hw->mac.type == e1000_ich8lan)
4364 reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
4365 E1000_WRITE_REG(hw, E1000_RFCTL, reg);
4367 /* Enable ECC on Lynxpoint */
4368 if (hw->mac.type == e1000_pch_lpt) {
4369 reg = E1000_READ_REG(hw, E1000_PBECCSTS);
4370 reg |= E1000_PBECCSTS_ECC_ENABLE;
4371 E1000_WRITE_REG(hw, E1000_PBECCSTS, reg);
4373 reg = E1000_READ_REG(hw, E1000_CTRL);
4374 reg |= E1000_CTRL_MEHE;
4375 E1000_WRITE_REG(hw, E1000_CTRL, reg);
4382 * e1000_setup_link_ich8lan - Setup flow control and link settings
4383 * @hw: pointer to the HW structure
4385 * Determines which flow control settings to use, then configures flow
4386 * control. Calls the appropriate media-specific link configuration
4387 * function. Assuming the adapter has a valid link partner, a valid link
4388 * should be established. Assumes the hardware has previously been reset
4389 * and the transmitter and receiver are not enabled.
4391 STATIC s32 e1000_setup_link_ich8lan(struct e1000_hw *hw)
4395 DEBUGFUNC("e1000_setup_link_ich8lan");
4397 if (hw->phy.ops.check_reset_block(hw))
4398 return E1000_SUCCESS;
4400 /* ICH parts do not have a word in the NVM to determine
4401 * the default flow control setting, so we explicitly
4404 if (hw->fc.requested_mode == e1000_fc_default)
4405 hw->fc.requested_mode = e1000_fc_full;
4407 /* Save off the requested flow control mode for use later. Depending
4408 * on the link partner's capabilities, we may or may not use this mode.
4410 hw->fc.current_mode = hw->fc.requested_mode;
4412 DEBUGOUT1("After fix-ups FlowControl is now = %x\n",
4413 hw->fc.current_mode);
4415 /* Continue to configure the copper link. */
4416 ret_val = hw->mac.ops.setup_physical_interface(hw);
4420 E1000_WRITE_REG(hw, E1000_FCTTV, hw->fc.pause_time);
4421 if ((hw->phy.type == e1000_phy_82578) ||
4422 (hw->phy.type == e1000_phy_82579) ||
4423 (hw->phy.type == e1000_phy_i217) ||
4424 (hw->phy.type == e1000_phy_82577)) {
4425 E1000_WRITE_REG(hw, E1000_FCRTV_PCH, hw->fc.refresh_time);
4427 ret_val = hw->phy.ops.write_reg(hw,
4428 PHY_REG(BM_PORT_CTRL_PAGE, 27),
4434 return e1000_set_fc_watermarks_generic(hw);
4438 * e1000_setup_copper_link_ich8lan - Configure MAC/PHY interface
4439 * @hw: pointer to the HW structure
4441 * Configures the kumeran interface to the PHY to wait the appropriate time
4442 * when polling the PHY, then call the generic setup_copper_link to finish
4443 * configuring the copper link.
4445 STATIC s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw)
4451 DEBUGFUNC("e1000_setup_copper_link_ich8lan");
4453 ctrl = E1000_READ_REG(hw, E1000_CTRL);
4454 ctrl |= E1000_CTRL_SLU;
4455 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
4456 E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
4458 /* Set the mac to wait the maximum time between each iteration
4459 * and increase the max iterations when polling the phy;
4460 * this fixes erroneous timeouts at 10Mbps.
4462 ret_val = e1000_write_kmrn_reg_generic(hw, E1000_KMRNCTRLSTA_TIMEOUTS,
4466 ret_val = e1000_read_kmrn_reg_generic(hw,
4467 E1000_KMRNCTRLSTA_INBAND_PARAM,
4472 ret_val = e1000_write_kmrn_reg_generic(hw,
4473 E1000_KMRNCTRLSTA_INBAND_PARAM,
4478 switch (hw->phy.type) {
4479 case e1000_phy_igp_3:
4480 ret_val = e1000_copper_link_setup_igp(hw);
4485 case e1000_phy_82578:
4486 ret_val = e1000_copper_link_setup_m88(hw);
4490 case e1000_phy_82577:
4491 case e1000_phy_82579:
4492 ret_val = e1000_copper_link_setup_82577(hw);
4497 ret_val = hw->phy.ops.read_reg(hw, IFE_PHY_MDIX_CONTROL,
4502 reg_data &= ~IFE_PMC_AUTO_MDIX;
4504 switch (hw->phy.mdix) {
4506 reg_data &= ~IFE_PMC_FORCE_MDIX;
4509 reg_data |= IFE_PMC_FORCE_MDIX;
4513 reg_data |= IFE_PMC_AUTO_MDIX;
4516 ret_val = hw->phy.ops.write_reg(hw, IFE_PHY_MDIX_CONTROL,
4525 return e1000_setup_copper_link_generic(hw);
4529 * e1000_setup_copper_link_pch_lpt - Configure MAC/PHY interface
4530 * @hw: pointer to the HW structure
4532 * Calls the PHY specific link setup function and then calls the
4533 * generic setup_copper_link to finish configuring the link for
4534 * Lynxpoint PCH devices
4536 STATIC s32 e1000_setup_copper_link_pch_lpt(struct e1000_hw *hw)
4541 DEBUGFUNC("e1000_setup_copper_link_pch_lpt");
4543 ctrl = E1000_READ_REG(hw, E1000_CTRL);
4544 ctrl |= E1000_CTRL_SLU;
4545 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
4546 E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
4548 ret_val = e1000_copper_link_setup_82577(hw);
4552 return e1000_setup_copper_link_generic(hw);
4556 * e1000_get_link_up_info_ich8lan - Get current link speed and duplex
4557 * @hw: pointer to the HW structure
4558 * @speed: pointer to store current link speed
4559 * @duplex: pointer to store the current link duplex
4561 * Calls the generic get_speed_and_duplex to retrieve the current link
4562 * information and then calls the Kumeran lock loss workaround for links at
4565 STATIC s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw, u16 *speed,
4570 DEBUGFUNC("e1000_get_link_up_info_ich8lan");
4572 ret_val = e1000_get_speed_and_duplex_copper_generic(hw, speed, duplex);
4576 if ((hw->mac.type == e1000_ich8lan) &&
4577 (hw->phy.type == e1000_phy_igp_3) &&
4578 (*speed == SPEED_1000)) {
4579 ret_val = e1000_kmrn_lock_loss_workaround_ich8lan(hw);
4586 * e1000_kmrn_lock_loss_workaround_ich8lan - Kumeran workaround
4587 * @hw: pointer to the HW structure
4589 * Work-around for 82566 Kumeran PCS lock loss:
4590 * On link status change (i.e. PCI reset, speed change) and link is up and
4592 * 0) if workaround is optionally disabled do nothing
4593 * 1) wait 1ms for Kumeran link to come up
4594 * 2) check Kumeran Diagnostic register PCS lock loss bit
4595 * 3) if not set the link is locked (all is good), otherwise...
4597 * 5) repeat up to 10 times
4598 * Note: this is only called for IGP3 copper when speed is 1gb.
4600 STATIC s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw)
4602 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
4608 DEBUGFUNC("e1000_kmrn_lock_loss_workaround_ich8lan");
4610 if (!dev_spec->kmrn_lock_loss_workaround_enabled)
4611 return E1000_SUCCESS;
4613 /* Make sure link is up before proceeding. If not just return.
4614 * Attempting this while link is negotiating fouled up link
4617 ret_val = e1000_phy_has_link_generic(hw, 1, 0, &link);
4619 return E1000_SUCCESS;
4621 for (i = 0; i < 10; i++) {
4622 /* read once to clear */
4623 ret_val = hw->phy.ops.read_reg(hw, IGP3_KMRN_DIAG, &data);
4626 /* and again to get new status */
4627 ret_val = hw->phy.ops.read_reg(hw, IGP3_KMRN_DIAG, &data);
4631 /* check for PCS lock */
4632 if (!(data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS))
4633 return E1000_SUCCESS;
4635 /* Issue PHY reset */
4636 hw->phy.ops.reset(hw);
4639 /* Disable GigE link negotiation */
4640 phy_ctrl = E1000_READ_REG(hw, E1000_PHY_CTRL);
4641 phy_ctrl |= (E1000_PHY_CTRL_GBE_DISABLE |
4642 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
4643 E1000_WRITE_REG(hw, E1000_PHY_CTRL, phy_ctrl);
4645 /* Call gig speed drop workaround on Gig disable before accessing
4648 e1000_gig_downshift_workaround_ich8lan(hw);
4650 /* unable to acquire PCS lock */
4651 return -E1000_ERR_PHY;
4655 * e1000_set_kmrn_lock_loss_workaround_ich8lan - Set Kumeran workaround state
4656 * @hw: pointer to the HW structure
4657 * @state: boolean value used to set the current Kumeran workaround state
4659 * If ICH8, set the current Kumeran workaround state (enabled - true
4660 * /disabled - false).
4662 void e1000_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
4665 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
4667 DEBUGFUNC("e1000_set_kmrn_lock_loss_workaround_ich8lan");
4669 if (hw->mac.type != e1000_ich8lan) {
4670 DEBUGOUT("Workaround applies to ICH8 only.\n");
4674 dev_spec->kmrn_lock_loss_workaround_enabled = state;
4680 * e1000_ipg3_phy_powerdown_workaround_ich8lan - Power down workaround on D3
4681 * @hw: pointer to the HW structure
4683 * Workaround for 82566 power-down on D3 entry:
4684 * 1) disable gigabit link
4685 * 2) write VR power-down enable
4687 * Continue if successful, else issue LCD reset and repeat
4689 void e1000_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw)
4695 DEBUGFUNC("e1000_igp3_phy_powerdown_workaround_ich8lan");
4697 if (hw->phy.type != e1000_phy_igp_3)
4700 /* Try the workaround twice (if needed) */
4703 reg = E1000_READ_REG(hw, E1000_PHY_CTRL);
4704 reg |= (E1000_PHY_CTRL_GBE_DISABLE |
4705 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
4706 E1000_WRITE_REG(hw, E1000_PHY_CTRL, reg);
4708 /* Call gig speed drop workaround on Gig disable before
4709 * accessing any PHY registers
4711 if (hw->mac.type == e1000_ich8lan)
4712 e1000_gig_downshift_workaround_ich8lan(hw);
4714 /* Write VR power-down enable */
4715 hw->phy.ops.read_reg(hw, IGP3_VR_CTRL, &data);
4716 data &= ~IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
4717 hw->phy.ops.write_reg(hw, IGP3_VR_CTRL,
4718 data | IGP3_VR_CTRL_MODE_SHUTDOWN);
4720 /* Read it back and test */
4721 hw->phy.ops.read_reg(hw, IGP3_VR_CTRL, &data);
4722 data &= IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
4723 if ((data == IGP3_VR_CTRL_MODE_SHUTDOWN) || retry)
4726 /* Issue PHY reset and repeat at most one more time */
4727 reg = E1000_READ_REG(hw, E1000_CTRL);
4728 E1000_WRITE_REG(hw, E1000_CTRL, reg | E1000_CTRL_PHY_RST);
4734 * e1000_gig_downshift_workaround_ich8lan - WoL from S5 stops working
4735 * @hw: pointer to the HW structure
4737 * Steps to take when dropping from 1Gb/s (eg. link cable removal (LSC),
4738 * LPLU, Gig disable, MDIC PHY reset):
4739 * 1) Set Kumeran Near-end loopback
4740 * 2) Clear Kumeran Near-end loopback
4741 * Should only be called for ICH8[m] devices with any 1G Phy.
4743 void e1000_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
4748 DEBUGFUNC("e1000_gig_downshift_workaround_ich8lan");
4750 if ((hw->mac.type != e1000_ich8lan) ||
4751 (hw->phy.type == e1000_phy_ife))
4754 ret_val = e1000_read_kmrn_reg_generic(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
4758 reg_data |= E1000_KMRNCTRLSTA_DIAG_NELPBK;
4759 ret_val = e1000_write_kmrn_reg_generic(hw,
4760 E1000_KMRNCTRLSTA_DIAG_OFFSET,
4764 reg_data &= ~E1000_KMRNCTRLSTA_DIAG_NELPBK;
4765 e1000_write_kmrn_reg_generic(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
4770 * e1000_suspend_workarounds_ich8lan - workarounds needed during S0->Sx
4771 * @hw: pointer to the HW structure
4773 * During S0 to Sx transition, it is possible the link remains at gig
4774 * instead of negotiating to a lower speed. Before going to Sx, set
4775 * 'Gig Disable' to force link speed negotiation to a lower speed based on
4776 * the LPLU setting in the NVM or custom setting. For PCH and newer parts,
4777 * the OEM bits PHY register (LED, GbE disable and LPLU configurations) also
4778 * needs to be written.
4779 * Parts that support (and are linked to a partner which support) EEE in
4780 * 100Mbps should disable LPLU since 100Mbps w/ EEE requires less power
4781 * than 10Mbps w/o EEE.
4783 void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw)
4785 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
4789 DEBUGFUNC("e1000_suspend_workarounds_ich8lan");
4791 phy_ctrl = E1000_READ_REG(hw, E1000_PHY_CTRL);
4792 phy_ctrl |= E1000_PHY_CTRL_GBE_DISABLE;
4794 if (hw->phy.type == e1000_phy_i217) {
4795 u16 phy_reg, device_id = hw->device_id;
4797 if ((device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
4798 (device_id == E1000_DEV_ID_PCH_LPTLP_I218_V)) {
4799 u32 fextnvm6 = E1000_READ_REG(hw, E1000_FEXTNVM6);
4801 E1000_WRITE_REG(hw, E1000_FEXTNVM6,
4802 fextnvm6 & ~E1000_FEXTNVM6_REQ_PLL_CLK);
4805 ret_val = hw->phy.ops.acquire(hw);
4809 if (!dev_spec->eee_disable) {
4813 e1000_read_emi_reg_locked(hw,
4814 I217_EEE_ADVERTISEMENT,
4819 /* Disable LPLU if both link partners support 100BaseT
4820 * EEE and 100Full is advertised on both ends of the
4821 * link, and enable Auto Enable LPI since there will
4822 * be no driver to enable LPI while in Sx.
4824 if ((eee_advert & I82579_EEE_100_SUPPORTED) &&
4825 (dev_spec->eee_lp_ability &
4826 I82579_EEE_100_SUPPORTED) &&
4827 (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)) {
4828 phy_ctrl &= ~(E1000_PHY_CTRL_D0A_LPLU |
4829 E1000_PHY_CTRL_NOND0A_LPLU);
4831 /* Set Auto Enable LPI after link up */
4832 hw->phy.ops.read_reg_locked(hw,
4835 phy_reg |= I217_LPI_GPIO_CTRL_AUTO_EN_LPI;
4836 hw->phy.ops.write_reg_locked(hw,
4842 /* For i217 Intel Rapid Start Technology support,
4843 * when the system is going into Sx and no manageability engine
4844 * is present, the driver must configure proxy to reset only on
4845 * power good. LPI (Low Power Idle) state must also reset only
4846 * on power good, as well as the MTA (Multicast table array).
4847 * The SMBus release must also be disabled on LCD reset.
4849 if (!(E1000_READ_REG(hw, E1000_FWSM) &
4850 E1000_ICH_FWSM_FW_VALID)) {
4851 /* Enable proxy to reset only on power good. */
4852 hw->phy.ops.read_reg_locked(hw, I217_PROXY_CTRL,
4854 phy_reg |= I217_PROXY_CTRL_AUTO_DISABLE;
4855 hw->phy.ops.write_reg_locked(hw, I217_PROXY_CTRL,
4858 /* Set bit enable LPI (EEE) to reset only on
4861 hw->phy.ops.read_reg_locked(hw, I217_SxCTRL, &phy_reg);
4862 phy_reg |= I217_SxCTRL_ENABLE_LPI_RESET;
4863 hw->phy.ops.write_reg_locked(hw, I217_SxCTRL, phy_reg);
4865 /* Disable the SMB release on LCD reset. */
4866 hw->phy.ops.read_reg_locked(hw, I217_MEMPWR, &phy_reg);
4867 phy_reg &= ~I217_MEMPWR_DISABLE_SMB_RELEASE;
4868 hw->phy.ops.write_reg_locked(hw, I217_MEMPWR, phy_reg);
4871 /* Enable MTA to reset for Intel Rapid Start Technology
4874 hw->phy.ops.read_reg_locked(hw, I217_CGFREG, &phy_reg);
4875 phy_reg |= I217_CGFREG_ENABLE_MTA_RESET;
4876 hw->phy.ops.write_reg_locked(hw, I217_CGFREG, phy_reg);
4879 hw->phy.ops.release(hw);
4882 E1000_WRITE_REG(hw, E1000_PHY_CTRL, phy_ctrl);
4884 if (hw->mac.type == e1000_ich8lan)
4885 e1000_gig_downshift_workaround_ich8lan(hw);
4887 if (hw->mac.type >= e1000_pchlan) {
4888 e1000_oem_bits_config_ich8lan(hw, false);
4890 /* Reset PHY to activate OEM bits on 82577/8 */
4891 if (hw->mac.type == e1000_pchlan)
4892 e1000_phy_hw_reset_generic(hw);
4894 ret_val = hw->phy.ops.acquire(hw);
4897 e1000_write_smbus_addr(hw);
4898 hw->phy.ops.release(hw);
4905 * e1000_resume_workarounds_pchlan - workarounds needed during Sx->S0
4906 * @hw: pointer to the HW structure
4908 * During Sx to S0 transitions on non-managed devices or managed devices
4909 * on which PHY resets are not blocked, if the PHY registers cannot be
4910 * accessed properly by the s/w toggle the LANPHYPC value to power cycle
4912 * On i217, setup Intel Rapid Start Technology.
4914 void e1000_resume_workarounds_pchlan(struct e1000_hw *hw)
4918 DEBUGFUNC("e1000_resume_workarounds_pchlan");
4920 if (hw->mac.type < e1000_pch2lan)
4923 ret_val = e1000_init_phy_workarounds_pchlan(hw);
4925 DEBUGOUT1("Failed to init PHY flow ret_val=%d\n", ret_val);
4929 /* For i217 Intel Rapid Start Technology support when the system
4930 * is transitioning from Sx and no manageability engine is present
4931 * configure SMBus to restore on reset, disable proxy, and enable
4932 * the reset on MTA (Multicast table array).
4934 if (hw->phy.type == e1000_phy_i217) {
4937 ret_val = hw->phy.ops.acquire(hw);
4939 DEBUGOUT("Failed to setup iRST\n");
4943 /* Clear Auto Enable LPI after link up */
4944 hw->phy.ops.read_reg_locked(hw, I217_LPI_GPIO_CTRL, &phy_reg);
4945 phy_reg &= ~I217_LPI_GPIO_CTRL_AUTO_EN_LPI;
4946 hw->phy.ops.write_reg_locked(hw, I217_LPI_GPIO_CTRL, phy_reg);
4948 if (!(E1000_READ_REG(hw, E1000_FWSM) &
4949 E1000_ICH_FWSM_FW_VALID)) {
4950 /* Restore clear on SMB if no manageability engine
4953 ret_val = hw->phy.ops.read_reg_locked(hw, I217_MEMPWR,
4957 phy_reg |= I217_MEMPWR_DISABLE_SMB_RELEASE;
4958 hw->phy.ops.write_reg_locked(hw, I217_MEMPWR, phy_reg);
4961 hw->phy.ops.write_reg_locked(hw, I217_PROXY_CTRL, 0);
4963 /* Enable reset on MTA */
4964 ret_val = hw->phy.ops.read_reg_locked(hw, I217_CGFREG,
4968 phy_reg &= ~I217_CGFREG_ENABLE_MTA_RESET;
4969 hw->phy.ops.write_reg_locked(hw, I217_CGFREG, phy_reg);
4972 DEBUGOUT1("Error %d in resume workarounds\n", ret_val);
4973 hw->phy.ops.release(hw);
4978 * e1000_cleanup_led_ich8lan - Restore the default LED operation
4979 * @hw: pointer to the HW structure
4981 * Return the LED back to the default configuration.
4983 STATIC s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw)
4985 DEBUGFUNC("e1000_cleanup_led_ich8lan");
4987 if (hw->phy.type == e1000_phy_ife)
4988 return hw->phy.ops.write_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED,
4991 E1000_WRITE_REG(hw, E1000_LEDCTL, hw->mac.ledctl_default);
4992 return E1000_SUCCESS;
4996 * e1000_led_on_ich8lan - Turn LEDs on
4997 * @hw: pointer to the HW structure
5001 STATIC s32 e1000_led_on_ich8lan(struct e1000_hw *hw)
5003 DEBUGFUNC("e1000_led_on_ich8lan");
5005 if (hw->phy.type == e1000_phy_ife)
5006 return hw->phy.ops.write_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED,
5007 (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON));
5009 E1000_WRITE_REG(hw, E1000_LEDCTL, hw->mac.ledctl_mode2);
5010 return E1000_SUCCESS;
5014 * e1000_led_off_ich8lan - Turn LEDs off
5015 * @hw: pointer to the HW structure
5017 * Turn off the LEDs.
5019 STATIC s32 e1000_led_off_ich8lan(struct e1000_hw *hw)
5021 DEBUGFUNC("e1000_led_off_ich8lan");
5023 if (hw->phy.type == e1000_phy_ife)
5024 return hw->phy.ops.write_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED,
5025 (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_OFF));
5027 E1000_WRITE_REG(hw, E1000_LEDCTL, hw->mac.ledctl_mode1);
5028 return E1000_SUCCESS;
5032 * e1000_setup_led_pchlan - Configures SW controllable LED
5033 * @hw: pointer to the HW structure
5035 * This prepares the SW controllable LED for use.
5037 STATIC s32 e1000_setup_led_pchlan(struct e1000_hw *hw)
5039 DEBUGFUNC("e1000_setup_led_pchlan");
5041 return hw->phy.ops.write_reg(hw, HV_LED_CONFIG,
5042 (u16)hw->mac.ledctl_mode1);
5046 * e1000_cleanup_led_pchlan - Restore the default LED operation
5047 * @hw: pointer to the HW structure
5049 * Return the LED back to the default configuration.
5051 STATIC s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw)
5053 DEBUGFUNC("e1000_cleanup_led_pchlan");
5055 return hw->phy.ops.write_reg(hw, HV_LED_CONFIG,
5056 (u16)hw->mac.ledctl_default);
5060 * e1000_led_on_pchlan - Turn LEDs on
5061 * @hw: pointer to the HW structure
5065 STATIC s32 e1000_led_on_pchlan(struct e1000_hw *hw)
5067 u16 data = (u16)hw->mac.ledctl_mode2;
5070 DEBUGFUNC("e1000_led_on_pchlan");
5072 /* If no link, then turn LED on by setting the invert bit
5073 * for each LED that's mode is "link_up" in ledctl_mode2.
5075 if (!(E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU)) {
5076 for (i = 0; i < 3; i++) {
5077 led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
5078 if ((led & E1000_PHY_LED0_MODE_MASK) !=
5079 E1000_LEDCTL_MODE_LINK_UP)
5081 if (led & E1000_PHY_LED0_IVRT)
5082 data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
5084 data |= (E1000_PHY_LED0_IVRT << (i * 5));
5088 return hw->phy.ops.write_reg(hw, HV_LED_CONFIG, data);
5092 * e1000_led_off_pchlan - Turn LEDs off
5093 * @hw: pointer to the HW structure
5095 * Turn off the LEDs.
5097 STATIC s32 e1000_led_off_pchlan(struct e1000_hw *hw)
5099 u16 data = (u16)hw->mac.ledctl_mode1;
5102 DEBUGFUNC("e1000_led_off_pchlan");
5104 /* If no link, then turn LED off by clearing the invert bit
5105 * for each LED that's mode is "link_up" in ledctl_mode1.
5107 if (!(E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU)) {
5108 for (i = 0; i < 3; i++) {
5109 led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
5110 if ((led & E1000_PHY_LED0_MODE_MASK) !=
5111 E1000_LEDCTL_MODE_LINK_UP)
5113 if (led & E1000_PHY_LED0_IVRT)
5114 data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
5116 data |= (E1000_PHY_LED0_IVRT << (i * 5));
5120 return hw->phy.ops.write_reg(hw, HV_LED_CONFIG, data);
5124 * e1000_get_cfg_done_ich8lan - Read config done bit after Full or PHY reset
5125 * @hw: pointer to the HW structure
5127 * Read appropriate register for the config done bit for completion status
5128 * and configure the PHY through s/w for EEPROM-less parts.
5130 * NOTE: some silicon which is EEPROM-less will fail trying to read the
5131 * config done bit, so only an error is logged and continues. If we were
5132 * to return with error, EEPROM-less silicon would not be able to be reset
5135 STATIC s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw)
5137 s32 ret_val = E1000_SUCCESS;
5141 DEBUGFUNC("e1000_get_cfg_done_ich8lan");
5143 e1000_get_cfg_done_generic(hw);
5145 /* Wait for indication from h/w that it has completed basic config */
5146 if (hw->mac.type >= e1000_ich10lan) {
5147 e1000_lan_init_done_ich8lan(hw);
5149 ret_val = e1000_get_auto_rd_done_generic(hw);
5151 /* When auto config read does not complete, do not
5152 * return with an error. This can happen in situations
5153 * where there is no eeprom and prevents getting link.
5155 DEBUGOUT("Auto Read Done did not complete\n");
5156 ret_val = E1000_SUCCESS;
5160 /* Clear PHY Reset Asserted bit */
5161 status = E1000_READ_REG(hw, E1000_STATUS);
5162 if (status & E1000_STATUS_PHYRA)
5163 E1000_WRITE_REG(hw, E1000_STATUS, status & ~E1000_STATUS_PHYRA);
5165 DEBUGOUT("PHY Reset Asserted not set - needs delay\n");
5167 /* If EEPROM is not marked present, init the IGP 3 PHY manually */
5168 if (hw->mac.type <= e1000_ich9lan) {
5169 if (!(E1000_READ_REG(hw, E1000_EECD) & E1000_EECD_PRES) &&
5170 (hw->phy.type == e1000_phy_igp_3)) {
5171 e1000_phy_init_script_igp3(hw);
5174 if (e1000_valid_nvm_bank_detect_ich8lan(hw, &bank)) {
5175 /* Maybe we should do a basic PHY config */
5176 DEBUGOUT("EEPROM not present\n");
5177 ret_val = -E1000_ERR_CONFIG;
5185 * e1000_power_down_phy_copper_ich8lan - Remove link during PHY power down
5186 * @hw: pointer to the HW structure
5188 * In the case of a PHY power down to save power, or to turn off link during a
5189 * driver unload, or wake on lan is not enabled, remove the link.
5191 STATIC void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw)
5193 /* If the management interface is not enabled, then power down */
5194 if (!(hw->mac.ops.check_mng_mode(hw) ||
5195 hw->phy.ops.check_reset_block(hw)))
5196 e1000_power_down_phy_copper(hw);
5202 * e1000_clear_hw_cntrs_ich8lan - Clear statistical counters
5203 * @hw: pointer to the HW structure
5205 * Clears hardware counters specific to the silicon family and calls
5206 * clear_hw_cntrs_generic to clear all general purpose counters.
5208 STATIC void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw)
5213 DEBUGFUNC("e1000_clear_hw_cntrs_ich8lan");
5215 e1000_clear_hw_cntrs_base_generic(hw);
5217 E1000_READ_REG(hw, E1000_ALGNERRC);
5218 E1000_READ_REG(hw, E1000_RXERRC);
5219 E1000_READ_REG(hw, E1000_TNCRS);
5220 E1000_READ_REG(hw, E1000_CEXTERR);
5221 E1000_READ_REG(hw, E1000_TSCTC);
5222 E1000_READ_REG(hw, E1000_TSCTFC);
5224 E1000_READ_REG(hw, E1000_MGTPRC);
5225 E1000_READ_REG(hw, E1000_MGTPDC);
5226 E1000_READ_REG(hw, E1000_MGTPTC);
5228 E1000_READ_REG(hw, E1000_IAC);
5229 E1000_READ_REG(hw, E1000_ICRXOC);
5231 /* Clear PHY statistics registers */
5232 if ((hw->phy.type == e1000_phy_82578) ||
5233 (hw->phy.type == e1000_phy_82579) ||
5234 (hw->phy.type == e1000_phy_i217) ||
5235 (hw->phy.type == e1000_phy_82577)) {
5236 ret_val = hw->phy.ops.acquire(hw);
5239 ret_val = hw->phy.ops.set_page(hw,
5240 HV_STATS_PAGE << IGP_PAGE_SHIFT);
5243 hw->phy.ops.read_reg_page(hw, HV_SCC_UPPER, &phy_data);
5244 hw->phy.ops.read_reg_page(hw, HV_SCC_LOWER, &phy_data);
5245 hw->phy.ops.read_reg_page(hw, HV_ECOL_UPPER, &phy_data);
5246 hw->phy.ops.read_reg_page(hw, HV_ECOL_LOWER, &phy_data);
5247 hw->phy.ops.read_reg_page(hw, HV_MCC_UPPER, &phy_data);
5248 hw->phy.ops.read_reg_page(hw, HV_MCC_LOWER, &phy_data);
5249 hw->phy.ops.read_reg_page(hw, HV_LATECOL_UPPER, &phy_data);
5250 hw->phy.ops.read_reg_page(hw, HV_LATECOL_LOWER, &phy_data);
5251 hw->phy.ops.read_reg_page(hw, HV_COLC_UPPER, &phy_data);
5252 hw->phy.ops.read_reg_page(hw, HV_COLC_LOWER, &phy_data);
5253 hw->phy.ops.read_reg_page(hw, HV_DC_UPPER, &phy_data);
5254 hw->phy.ops.read_reg_page(hw, HV_DC_LOWER, &phy_data);
5255 hw->phy.ops.read_reg_page(hw, HV_TNCRS_UPPER, &phy_data);
5256 hw->phy.ops.read_reg_page(hw, HV_TNCRS_LOWER, &phy_data);
5258 hw->phy.ops.release(hw);