1 /*******************************************************************************
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2013 Intel Corporation.
6 This program is free software; you can redistribute it and/or modify it
7 under the terms and conditions of the GNU General Public License,
8 version 2, as published by the Free Software Foundation.
10 This program is distributed in the hope it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 You should have received a copy of the GNU General Public License along with
16 this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
19 The full GNU General Public License is included in this distribution in
20 the file called "COPYING".
23 Linux NICS <linux.nics@intel.com>
24 e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
25 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *******************************************************************************/
29 /* 82562G 10/100 Network Connection
30 * 82562G-2 10/100 Network Connection
31 * 82562GT 10/100 Network Connection
32 * 82562GT-2 10/100 Network Connection
33 * 82562V 10/100 Network Connection
34 * 82562V-2 10/100 Network Connection
35 * 82566DC-2 Gigabit Network Connection
36 * 82566DC Gigabit Network Connection
37 * 82566DM-2 Gigabit Network Connection
38 * 82566DM Gigabit Network Connection
39 * 82566MC Gigabit Network Connection
40 * 82566MM Gigabit Network Connection
41 * 82567LM Gigabit Network Connection
42 * 82567LF Gigabit Network Connection
43 * 82567V Gigabit Network Connection
44 * 82567LM-2 Gigabit Network Connection
45 * 82567LF-2 Gigabit Network Connection
46 * 82567V-2 Gigabit Network Connection
47 * 82567LF-3 Gigabit Network Connection
48 * 82567LM-3 Gigabit Network Connection
49 * 82567LM-4 Gigabit Network Connection
50 * 82577LM Gigabit Network Connection
51 * 82577LC Gigabit Network Connection
52 * 82578DM Gigabit Network Connection
53 * 82578DC Gigabit Network Connection
54 * 82579LM Gigabit Network Connection
55 * 82579V Gigabit Network Connection
60 /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */
61 /* Offset 04h HSFSTS */
62 union ich8_hws_flash_status {
64 u16 flcdone:1; /* bit 0 Flash Cycle Done */
65 u16 flcerr:1; /* bit 1 Flash Cycle Error */
66 u16 dael:1; /* bit 2 Direct Access error Log */
67 u16 berasesz:2; /* bit 4:3 Sector Erase Size */
68 u16 flcinprog:1; /* bit 5 flash cycle in Progress */
69 u16 reserved1:2; /* bit 13:6 Reserved */
70 u16 reserved2:6; /* bit 13:6 Reserved */
71 u16 fldesvalid:1; /* bit 14 Flash Descriptor Valid */
72 u16 flockdn:1; /* bit 15 Flash Config Lock-Down */
77 /* ICH GbE Flash Hardware Sequencing Flash control Register bit breakdown */
78 /* Offset 06h FLCTL */
79 union ich8_hws_flash_ctrl {
81 u16 flcgo:1; /* 0 Flash Cycle Go */
82 u16 flcycle:2; /* 2:1 Flash Cycle */
83 u16 reserved:5; /* 7:3 Reserved */
84 u16 fldbcount:2; /* 9:8 Flash Data Byte Count */
85 u16 flockdn:6; /* 15:10 Reserved */
90 /* ICH Flash Region Access Permissions */
91 union ich8_hws_flash_regacc {
93 u32 grra:8; /* 0:7 GbE region Read Access */
94 u32 grwa:8; /* 8:15 GbE region Write Access */
95 u32 gmrag:8; /* 23:16 GbE Master Read Access Grant */
96 u32 gmwag:8; /* 31:24 GbE Master Write Access Grant */
101 /* ICH Flash Protected Region */
102 union ich8_flash_protected_range {
104 u32 base:13; /* 0:12 Protected Range Base */
105 u32 reserved1:2; /* 13:14 Reserved */
106 u32 rpe:1; /* 15 Read Protection Enable */
107 u32 limit:13; /* 16:28 Protected Range Limit */
108 u32 reserved2:2; /* 29:30 Reserved */
109 u32 wpe:1; /* 31 Write Protection Enable */
114 static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw);
115 static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw);
116 static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank);
117 static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
118 u32 offset, u8 byte);
119 static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
121 static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
123 static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
125 static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw);
126 static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw);
127 static s32 e1000_led_on_ich8lan(struct e1000_hw *hw);
128 static s32 e1000_led_off_ich8lan(struct e1000_hw *hw);
129 static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw);
130 static s32 e1000_setup_led_pchlan(struct e1000_hw *hw);
131 static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw);
132 static s32 e1000_led_on_pchlan(struct e1000_hw *hw);
133 static s32 e1000_led_off_pchlan(struct e1000_hw *hw);
134 static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active);
135 static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw);
136 static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw);
137 static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link);
138 static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw);
139 static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw);
140 static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw);
141 static void e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index);
142 static void e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index);
143 static s32 e1000_k1_workaround_lv(struct e1000_hw *hw);
144 static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate);
146 static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg)
148 return readw(hw->flash_address + reg);
151 static inline u32 __er32flash(struct e1000_hw *hw, unsigned long reg)
153 return readl(hw->flash_address + reg);
156 static inline void __ew16flash(struct e1000_hw *hw, unsigned long reg, u16 val)
158 writew(val, hw->flash_address + reg);
161 static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val)
163 writel(val, hw->flash_address + reg);
166 #define er16flash(reg) __er16flash(hw, (reg))
167 #define er32flash(reg) __er32flash(hw, (reg))
168 #define ew16flash(reg, val) __ew16flash(hw, (reg), (val))
169 #define ew32flash(reg, val) __ew32flash(hw, (reg), (val))
172 * e1000_phy_is_accessible_pchlan - Check if able to access PHY registers
173 * @hw: pointer to the HW structure
175 * Test access to the PHY registers by reading the PHY ID registers. If
176 * the PHY ID is already known (e.g. resume path) compare it with known ID,
177 * otherwise assume the read PHY ID is correct if it is valid.
179 * Assumes the sw/fw/hw semaphore is already acquired.
181 static bool e1000_phy_is_accessible_pchlan(struct e1000_hw *hw)
188 for (retry_count = 0; retry_count < 2; retry_count++) {
189 ret_val = e1e_rphy_locked(hw, MII_PHYSID1, &phy_reg);
190 if (ret_val || (phy_reg == 0xFFFF))
192 phy_id = (u32)(phy_reg << 16);
194 ret_val = e1e_rphy_locked(hw, MII_PHYSID2, &phy_reg);
195 if (ret_val || (phy_reg == 0xFFFF)) {
199 phy_id |= (u32)(phy_reg & PHY_REVISION_MASK);
204 if (hw->phy.id == phy_id)
208 hw->phy.revision = (u32)(phy_reg & ~PHY_REVISION_MASK);
212 /* In case the PHY needs to be in mdio slow mode,
213 * set slow mode and try to get the PHY id again.
215 hw->phy.ops.release(hw);
216 ret_val = e1000_set_mdio_slow_mode_hv(hw);
218 ret_val = e1000e_get_phy_id(hw);
219 hw->phy.ops.acquire(hw);
225 * e1000_init_phy_workarounds_pchlan - PHY initialization workarounds
226 * @hw: pointer to the HW structure
228 * Workarounds/flow necessary for PHY initialization during driver load
231 static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
233 u32 mac_reg, fwsm = er32(FWSM);
237 /* Gate automatic PHY configuration by hardware on managed and
238 * non-managed 82579 and newer adapters.
240 e1000_gate_hw_phy_config_ich8lan(hw, true);
242 ret_val = hw->phy.ops.acquire(hw);
244 e_dbg("Failed to initialize PHY flow\n");
248 /* The MAC-PHY interconnect may be in SMBus mode. If the PHY is
249 * inaccessible and resetting the PHY is not blocked, toggle the
250 * LANPHYPC Value bit to force the interconnect to PCIe mode.
252 switch (hw->mac.type) {
254 if (e1000_phy_is_accessible_pchlan(hw))
257 /* Before toggling LANPHYPC, see if PHY is accessible by
258 * forcing MAC to SMBus mode first.
260 mac_reg = er32(CTRL_EXT);
261 mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
262 ew32(CTRL_EXT, mac_reg);
266 if (e1000_phy_is_accessible_pchlan(hw)) {
267 if (hw->mac.type == e1000_pch_lpt) {
268 /* Unforce SMBus mode in PHY */
269 e1e_rphy_locked(hw, CV_SMB_CTRL, &phy_reg);
270 phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS;
271 e1e_wphy_locked(hw, CV_SMB_CTRL, phy_reg);
273 /* Unforce SMBus mode in MAC */
274 mac_reg = er32(CTRL_EXT);
275 mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
276 ew32(CTRL_EXT, mac_reg);
283 if ((hw->mac.type == e1000_pchlan) &&
284 (fwsm & E1000_ICH_FWSM_FW_VALID))
287 if (hw->phy.ops.check_reset_block(hw)) {
288 e_dbg("Required LANPHYPC toggle blocked by ME\n");
292 e_dbg("Toggling LANPHYPC\n");
294 /* Set Phy Config Counter to 50msec */
295 mac_reg = er32(FEXTNVM3);
296 mac_reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK;
297 mac_reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC;
298 ew32(FEXTNVM3, mac_reg);
300 if (hw->mac.type == e1000_pch_lpt) {
301 /* Toggling LANPHYPC brings the PHY out of SMBus mode
302 * So ensure that the MAC is also out of SMBus mode
304 mac_reg = er32(CTRL_EXT);
305 mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS;
306 ew32(CTRL_EXT, mac_reg);
309 /* Toggle LANPHYPC Value bit */
310 mac_reg = er32(CTRL);
311 mac_reg |= E1000_CTRL_LANPHYPC_OVERRIDE;
312 mac_reg &= ~E1000_CTRL_LANPHYPC_VALUE;
316 mac_reg &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
319 if (hw->mac.type < e1000_pch_lpt) {
324 usleep_range(5000, 10000);
325 } while (!(er32(CTRL_EXT) &
326 E1000_CTRL_EXT_LPCD) && count--);
333 hw->phy.ops.release(hw);
335 /* Reset the PHY before any access to it. Doing so, ensures
336 * that the PHY is in a known good state before we read/write
337 * PHY registers. The generic reset is sufficient here,
338 * because we haven't determined the PHY type yet.
340 ret_val = e1000e_phy_hw_reset_generic(hw);
343 /* Ungate automatic PHY configuration on non-managed 82579 */
344 if ((hw->mac.type == e1000_pch2lan) &&
345 !(fwsm & E1000_ICH_FWSM_FW_VALID)) {
346 usleep_range(10000, 20000);
347 e1000_gate_hw_phy_config_ich8lan(hw, false);
354 * e1000_init_phy_params_pchlan - Initialize PHY function pointers
355 * @hw: pointer to the HW structure
357 * Initialize family-specific PHY parameters and function pointers.
359 static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
361 struct e1000_phy_info *phy = &hw->phy;
365 phy->reset_delay_us = 100;
367 phy->ops.set_page = e1000_set_page_igp;
368 phy->ops.read_reg = e1000_read_phy_reg_hv;
369 phy->ops.read_reg_locked = e1000_read_phy_reg_hv_locked;
370 phy->ops.read_reg_page = e1000_read_phy_reg_page_hv;
371 phy->ops.set_d0_lplu_state = e1000_set_lplu_state_pchlan;
372 phy->ops.set_d3_lplu_state = e1000_set_lplu_state_pchlan;
373 phy->ops.write_reg = e1000_write_phy_reg_hv;
374 phy->ops.write_reg_locked = e1000_write_phy_reg_hv_locked;
375 phy->ops.write_reg_page = e1000_write_phy_reg_page_hv;
376 phy->ops.power_up = e1000_power_up_phy_copper;
377 phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
378 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
380 phy->id = e1000_phy_unknown;
382 ret_val = e1000_init_phy_workarounds_pchlan(hw);
386 if (phy->id == e1000_phy_unknown)
387 switch (hw->mac.type) {
389 ret_val = e1000e_get_phy_id(hw);
392 if ((phy->id != 0) && (phy->id != PHY_REVISION_MASK))
397 /* In case the PHY needs to be in mdio slow mode,
398 * set slow mode and try to get the PHY id again.
400 ret_val = e1000_set_mdio_slow_mode_hv(hw);
403 ret_val = e1000e_get_phy_id(hw);
408 phy->type = e1000e_get_phy_type_from_id(phy->id);
411 case e1000_phy_82577:
412 case e1000_phy_82579:
414 phy->ops.check_polarity = e1000_check_polarity_82577;
415 phy->ops.force_speed_duplex =
416 e1000_phy_force_speed_duplex_82577;
417 phy->ops.get_cable_length = e1000_get_cable_length_82577;
418 phy->ops.get_info = e1000_get_phy_info_82577;
419 phy->ops.commit = e1000e_phy_sw_reset;
421 case e1000_phy_82578:
422 phy->ops.check_polarity = e1000_check_polarity_m88;
423 phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88;
424 phy->ops.get_cable_length = e1000e_get_cable_length_m88;
425 phy->ops.get_info = e1000e_get_phy_info_m88;
428 ret_val = -E1000_ERR_PHY;
436 * e1000_init_phy_params_ich8lan - Initialize PHY function pointers
437 * @hw: pointer to the HW structure
439 * Initialize family-specific PHY parameters and function pointers.
441 static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
443 struct e1000_phy_info *phy = &hw->phy;
448 phy->reset_delay_us = 100;
450 phy->ops.power_up = e1000_power_up_phy_copper;
451 phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
453 /* We may need to do this twice - once for IGP and if that fails,
454 * we'll set BM func pointers and try again
456 ret_val = e1000e_determine_phy_address(hw);
458 phy->ops.write_reg = e1000e_write_phy_reg_bm;
459 phy->ops.read_reg = e1000e_read_phy_reg_bm;
460 ret_val = e1000e_determine_phy_address(hw);
462 e_dbg("Cannot determine PHY addr. Erroring out\n");
468 while ((e1000_phy_unknown == e1000e_get_phy_type_from_id(phy->id)) &&
470 usleep_range(1000, 2000);
471 ret_val = e1000e_get_phy_id(hw);
478 case IGP03E1000_E_PHY_ID:
479 phy->type = e1000_phy_igp_3;
480 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
481 phy->ops.read_reg_locked = e1000e_read_phy_reg_igp_locked;
482 phy->ops.write_reg_locked = e1000e_write_phy_reg_igp_locked;
483 phy->ops.get_info = e1000e_get_phy_info_igp;
484 phy->ops.check_polarity = e1000_check_polarity_igp;
485 phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_igp;
488 case IFE_PLUS_E_PHY_ID:
490 phy->type = e1000_phy_ife;
491 phy->autoneg_mask = E1000_ALL_NOT_GIG;
492 phy->ops.get_info = e1000_get_phy_info_ife;
493 phy->ops.check_polarity = e1000_check_polarity_ife;
494 phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_ife;
496 case BME1000_E_PHY_ID:
497 phy->type = e1000_phy_bm;
498 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
499 phy->ops.read_reg = e1000e_read_phy_reg_bm;
500 phy->ops.write_reg = e1000e_write_phy_reg_bm;
501 phy->ops.commit = e1000e_phy_sw_reset;
502 phy->ops.get_info = e1000e_get_phy_info_m88;
503 phy->ops.check_polarity = e1000_check_polarity_m88;
504 phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88;
507 return -E1000_ERR_PHY;
515 * e1000_init_nvm_params_ich8lan - Initialize NVM function pointers
516 * @hw: pointer to the HW structure
518 * Initialize family-specific NVM parameters and function
521 static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw)
523 struct e1000_nvm_info *nvm = &hw->nvm;
524 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
525 u32 gfpreg, sector_base_addr, sector_end_addr;
528 /* Can't read flash registers if the register set isn't mapped. */
529 if (!hw->flash_address) {
530 e_dbg("ERROR: Flash registers not mapped\n");
531 return -E1000_ERR_CONFIG;
534 nvm->type = e1000_nvm_flash_sw;
536 gfpreg = er32flash(ICH_FLASH_GFPREG);
538 /* sector_X_addr is a "sector"-aligned address (4096 bytes)
539 * Add 1 to sector_end_addr since this sector is included in
542 sector_base_addr = gfpreg & FLASH_GFPREG_BASE_MASK;
543 sector_end_addr = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK) + 1;
545 /* flash_base_addr is byte-aligned */
546 nvm->flash_base_addr = sector_base_addr << FLASH_SECTOR_ADDR_SHIFT;
548 /* find total size of the NVM, then cut in half since the total
549 * size represents two separate NVM banks.
551 nvm->flash_bank_size = ((sector_end_addr - sector_base_addr)
552 << FLASH_SECTOR_ADDR_SHIFT);
553 nvm->flash_bank_size /= 2;
554 /* Adjust to word count */
555 nvm->flash_bank_size /= sizeof(u16);
557 nvm->word_size = E1000_ICH8_SHADOW_RAM_WORDS;
559 /* Clear shadow ram */
560 for (i = 0; i < nvm->word_size; i++) {
561 dev_spec->shadow_ram[i].modified = false;
562 dev_spec->shadow_ram[i].value = 0xFFFF;
569 * e1000_init_mac_params_ich8lan - Initialize MAC function pointers
570 * @hw: pointer to the HW structure
572 * Initialize family-specific MAC parameters and function
575 static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
577 struct e1000_mac_info *mac = &hw->mac;
579 /* Set media type function pointer */
580 hw->phy.media_type = e1000_media_type_copper;
582 /* Set mta register count */
583 mac->mta_reg_count = 32;
584 /* Set rar entry count */
585 mac->rar_entry_count = E1000_ICH_RAR_ENTRIES;
586 if (mac->type == e1000_ich8lan)
587 mac->rar_entry_count--;
589 mac->has_fwsm = true;
590 /* ARC subsystem not supported */
591 mac->arc_subsystem_valid = false;
592 /* Adaptive IFS supported */
593 mac->adaptive_ifs = true;
595 /* LED and other operations */
600 /* check management mode */
601 mac->ops.check_mng_mode = e1000_check_mng_mode_ich8lan;
603 mac->ops.id_led_init = e1000e_id_led_init_generic;
605 mac->ops.blink_led = e1000e_blink_led_generic;
607 mac->ops.setup_led = e1000e_setup_led_generic;
609 mac->ops.cleanup_led = e1000_cleanup_led_ich8lan;
610 /* turn on/off LED */
611 mac->ops.led_on = e1000_led_on_ich8lan;
612 mac->ops.led_off = e1000_led_off_ich8lan;
615 mac->rar_entry_count = E1000_PCH2_RAR_ENTRIES;
616 mac->ops.rar_set = e1000_rar_set_pch2lan;
620 /* check management mode */
621 mac->ops.check_mng_mode = e1000_check_mng_mode_pchlan;
623 mac->ops.id_led_init = e1000_id_led_init_pchlan;
625 mac->ops.setup_led = e1000_setup_led_pchlan;
627 mac->ops.cleanup_led = e1000_cleanup_led_pchlan;
628 /* turn on/off LED */
629 mac->ops.led_on = e1000_led_on_pchlan;
630 mac->ops.led_off = e1000_led_off_pchlan;
636 if (mac->type == e1000_pch_lpt) {
637 mac->rar_entry_count = E1000_PCH_LPT_RAR_ENTRIES;
638 mac->ops.rar_set = e1000_rar_set_pch_lpt;
641 /* Enable PCS Lock-loss workaround for ICH8 */
642 if (mac->type == e1000_ich8lan)
643 e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, true);
649 * __e1000_access_emi_reg_locked - Read/write EMI register
650 * @hw: pointer to the HW structure
651 * @addr: EMI address to program
652 * @data: pointer to value to read/write from/to the EMI address
653 * @read: boolean flag to indicate read or write
655 * This helper function assumes the SW/FW/HW Semaphore is already acquired.
657 static s32 __e1000_access_emi_reg_locked(struct e1000_hw *hw, u16 address,
658 u16 *data, bool read)
662 ret_val = e1e_wphy_locked(hw, I82579_EMI_ADDR, address);
667 ret_val = e1e_rphy_locked(hw, I82579_EMI_DATA, data);
669 ret_val = e1e_wphy_locked(hw, I82579_EMI_DATA, *data);
675 * e1000_read_emi_reg_locked - Read Extended Management Interface register
676 * @hw: pointer to the HW structure
677 * @addr: EMI address to program
678 * @data: value to be read from the EMI address
680 * Assumes the SW/FW/HW Semaphore is already acquired.
682 s32 e1000_read_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 *data)
684 return __e1000_access_emi_reg_locked(hw, addr, data, true);
688 * e1000_write_emi_reg_locked - Write Extended Management Interface register
689 * @hw: pointer to the HW structure
690 * @addr: EMI address to program
691 * @data: value to be written to the EMI address
693 * Assumes the SW/FW/HW Semaphore is already acquired.
695 static s32 e1000_write_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 data)
697 return __e1000_access_emi_reg_locked(hw, addr, &data, false);
701 * e1000_set_eee_pchlan - Enable/disable EEE support
702 * @hw: pointer to the HW structure
704 * Enable/disable EEE based on setting in dev_spec structure, the duplex of
705 * the link and the EEE capabilities of the link partner. The LPI Control
706 * register bits will remain set only if/when link is up.
708 static s32 e1000_set_eee_pchlan(struct e1000_hw *hw)
710 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
714 if ((hw->phy.type != e1000_phy_82579) &&
715 (hw->phy.type != e1000_phy_i217))
718 ret_val = hw->phy.ops.acquire(hw);
722 ret_val = e1e_rphy_locked(hw, I82579_LPI_CTRL, &lpi_ctrl);
726 /* Clear bits that enable EEE in various speeds */
727 lpi_ctrl &= ~I82579_LPI_CTRL_ENABLE_MASK;
729 /* Enable EEE if not disabled by user */
730 if (!dev_spec->eee_disable) {
731 u16 lpa, pcs_status, data;
733 /* Save off link partner's EEE ability */
734 switch (hw->phy.type) {
735 case e1000_phy_82579:
736 lpa = I82579_EEE_LP_ABILITY;
737 pcs_status = I82579_EEE_PCS_STATUS;
740 lpa = I217_EEE_LP_ABILITY;
741 pcs_status = I217_EEE_PCS_STATUS;
744 ret_val = -E1000_ERR_PHY;
747 ret_val = e1000_read_emi_reg_locked(hw, lpa,
748 &dev_spec->eee_lp_ability);
752 /* Enable EEE only for speeds in which the link partner is
755 if (dev_spec->eee_lp_ability & I82579_EEE_1000_SUPPORTED)
756 lpi_ctrl |= I82579_LPI_CTRL_1000_ENABLE;
758 if (dev_spec->eee_lp_ability & I82579_EEE_100_SUPPORTED) {
759 e1e_rphy_locked(hw, MII_LPA, &data);
760 if (data & LPA_100FULL)
761 lpi_ctrl |= I82579_LPI_CTRL_100_ENABLE;
763 /* EEE is not supported in 100Half, so ignore
764 * partner's EEE in 100 ability if full-duplex
767 dev_spec->eee_lp_ability &=
768 ~I82579_EEE_100_SUPPORTED;
771 /* R/Clr IEEE MMD 3.1 bits 11:10 - Tx/Rx LPI Received */
772 ret_val = e1000_read_emi_reg_locked(hw, pcs_status, &data);
777 ret_val = e1e_wphy_locked(hw, I82579_LPI_CTRL, lpi_ctrl);
779 hw->phy.ops.release(hw);
785 * e1000_check_for_copper_link_ich8lan - Check for link (Copper)
786 * @hw: pointer to the HW structure
788 * Checks to see of the link status of the hardware has changed. If a
789 * change in link status has been detected, then we read the PHY registers
790 * to get the current speed/duplex if link exists.
792 static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
794 struct e1000_mac_info *mac = &hw->mac;
799 /* We only want to go out to the PHY registers to see if Auto-Neg
800 * has completed and/or if our link status has changed. The
801 * get_link_status flag is set upon receiving a Link Status
802 * Change or Rx Sequence Error interrupt.
804 if (!mac->get_link_status)
807 /* First we want to see if the MII Status Register reports
808 * link. If so, then we want to get the current speed/duplex
811 ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
815 if (hw->mac.type == e1000_pchlan) {
816 ret_val = e1000_k1_gig_workaround_hv(hw, link);
821 /* Clear link partner's EEE ability */
822 hw->dev_spec.ich8lan.eee_lp_ability = 0;
825 return 0; /* No link detected */
827 mac->get_link_status = false;
829 switch (hw->mac.type) {
831 ret_val = e1000_k1_workaround_lv(hw);
836 if (hw->phy.type == e1000_phy_82578) {
837 ret_val = e1000_link_stall_workaround_hv(hw);
842 /* Workaround for PCHx parts in half-duplex:
843 * Set the number of preambles removed from the packet
844 * when it is passed from the PHY to the MAC to prevent
845 * the MAC from misinterpreting the packet type.
847 e1e_rphy(hw, HV_KMRN_FIFO_CTRLSTA, &phy_reg);
848 phy_reg &= ~HV_KMRN_FIFO_CTRLSTA_PREAMBLE_MASK;
850 if ((er32(STATUS) & E1000_STATUS_FD) != E1000_STATUS_FD)
851 phy_reg |= (1 << HV_KMRN_FIFO_CTRLSTA_PREAMBLE_SHIFT);
853 e1e_wphy(hw, HV_KMRN_FIFO_CTRLSTA, phy_reg);
859 /* Check if there was DownShift, must be checked
860 * immediately after link-up
862 e1000e_check_downshift(hw);
864 /* Enable/Disable EEE after link up */
865 ret_val = e1000_set_eee_pchlan(hw);
869 /* If we are forcing speed/duplex, then we simply return since
870 * we have already determined whether we have link or not.
873 return -E1000_ERR_CONFIG;
875 /* Auto-Neg is enabled. Auto Speed Detection takes care
876 * of MAC speed/duplex configuration. So we only need to
877 * configure Collision Distance in the MAC.
879 mac->ops.config_collision_dist(hw);
881 /* Configure Flow Control now that Auto-Neg has completed.
882 * First, we need to restore the desired flow control
883 * settings because we may have had to re-autoneg with a
884 * different link partner.
886 ret_val = e1000e_config_fc_after_link_up(hw);
888 e_dbg("Error configuring flow control\n");
893 static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
895 struct e1000_hw *hw = &adapter->hw;
898 rc = e1000_init_mac_params_ich8lan(hw);
902 rc = e1000_init_nvm_params_ich8lan(hw);
906 switch (hw->mac.type) {
910 rc = e1000_init_phy_params_ich8lan(hw);
915 rc = e1000_init_phy_params_pchlan(hw);
923 /* Disable Jumbo Frame support on parts with Intel 10/100 PHY or
924 * on parts with MACsec enabled in NVM (reflected in CTRL_EXT).
926 if ((adapter->hw.phy.type == e1000_phy_ife) ||
927 ((adapter->hw.mac.type >= e1000_pch2lan) &&
928 (!(er32(CTRL_EXT) & E1000_CTRL_EXT_LSECCK)))) {
929 adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
930 adapter->max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN;
932 hw->mac.ops.blink_led = NULL;
935 if ((adapter->hw.mac.type == e1000_ich8lan) &&
936 (adapter->hw.phy.type != e1000_phy_ife))
937 adapter->flags |= FLAG_LSC_GIG_SPEED_DROP;
939 /* Enable workaround for 82579 w/ ME enabled */
940 if ((adapter->hw.mac.type == e1000_pch2lan) &&
941 (er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
942 adapter->flags2 |= FLAG2_PCIM2PCI_ARBITER_WA;
944 /* Disable EEE by default until IEEE802.3az spec is finalized */
945 if (adapter->flags2 & FLAG2_HAS_EEE)
946 adapter->hw.dev_spec.ich8lan.eee_disable = true;
951 static DEFINE_MUTEX(nvm_mutex);
954 * e1000_acquire_nvm_ich8lan - Acquire NVM mutex
955 * @hw: pointer to the HW structure
957 * Acquires the mutex for performing NVM operations.
959 static s32 e1000_acquire_nvm_ich8lan(struct e1000_hw __always_unused *hw)
961 mutex_lock(&nvm_mutex);
967 * e1000_release_nvm_ich8lan - Release NVM mutex
968 * @hw: pointer to the HW structure
970 * Releases the mutex used while performing NVM operations.
972 static void e1000_release_nvm_ich8lan(struct e1000_hw __always_unused *hw)
974 mutex_unlock(&nvm_mutex);
978 * e1000_acquire_swflag_ich8lan - Acquire software control flag
979 * @hw: pointer to the HW structure
981 * Acquires the software control flag for performing PHY and select
984 static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw)
986 u32 extcnf_ctrl, timeout = PHY_CFG_TIMEOUT;
989 if (test_and_set_bit(__E1000_ACCESS_SHARED_RESOURCE,
990 &hw->adapter->state)) {
991 e_dbg("contention for Phy access\n");
992 return -E1000_ERR_PHY;
996 extcnf_ctrl = er32(EXTCNF_CTRL);
997 if (!(extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG))
1005 e_dbg("SW has already locked the resource.\n");
1006 ret_val = -E1000_ERR_CONFIG;
1010 timeout = SW_FLAG_TIMEOUT;
1012 extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG;
1013 ew32(EXTCNF_CTRL, extcnf_ctrl);
1016 extcnf_ctrl = er32(EXTCNF_CTRL);
1017 if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG)
1025 e_dbg("Failed to acquire the semaphore, FW or HW has it: FWSM=0x%8.8x EXTCNF_CTRL=0x%8.8x)\n",
1026 er32(FWSM), extcnf_ctrl);
1027 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
1028 ew32(EXTCNF_CTRL, extcnf_ctrl);
1029 ret_val = -E1000_ERR_CONFIG;
1035 clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state);
1041 * e1000_release_swflag_ich8lan - Release software control flag
1042 * @hw: pointer to the HW structure
1044 * Releases the software control flag for performing PHY and select
1047 static void e1000_release_swflag_ich8lan(struct e1000_hw *hw)
1051 extcnf_ctrl = er32(EXTCNF_CTRL);
1053 if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) {
1054 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
1055 ew32(EXTCNF_CTRL, extcnf_ctrl);
1057 e_dbg("Semaphore unexpectedly released by sw/fw/hw\n");
1060 clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state);
1064 * e1000_check_mng_mode_ich8lan - Checks management mode
1065 * @hw: pointer to the HW structure
1067 * This checks if the adapter has any manageability enabled.
1068 * This is a function pointer entry point only called by read/write
1069 * routines for the PHY and NVM parts.
1071 static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw)
1076 return ((fwsm & E1000_ICH_FWSM_FW_VALID) &&
1077 ((fwsm & E1000_FWSM_MODE_MASK) ==
1078 (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT)));
1082 * e1000_check_mng_mode_pchlan - Checks management mode
1083 * @hw: pointer to the HW structure
1085 * This checks if the adapter has iAMT enabled.
1086 * This is a function pointer entry point only called by read/write
1087 * routines for the PHY and NVM parts.
1089 static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw)
1094 return (fwsm & E1000_ICH_FWSM_FW_VALID) &&
1095 (fwsm & (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT));
1099 * e1000_rar_set_pch2lan - Set receive address register
1100 * @hw: pointer to the HW structure
1101 * @addr: pointer to the receive address
1102 * @index: receive address array register
1104 * Sets the receive address array register at index to the address passed
1105 * in by addr. For 82579, RAR[0] is the base address register that is to
1106 * contain the MAC address but RAR[1-6] are reserved for manageability (ME).
1107 * Use SHRA[0-3] in place of those reserved for ME.
1109 static void e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index)
1111 u32 rar_low, rar_high;
1113 /* HW expects these in little endian so we reverse the byte order
1114 * from network order (big endian) to little endian
1116 rar_low = ((u32)addr[0] |
1117 ((u32)addr[1] << 8) |
1118 ((u32)addr[2] << 16) | ((u32)addr[3] << 24));
1120 rar_high = ((u32)addr[4] | ((u32)addr[5] << 8));
1122 /* If MAC address zero, no need to set the AV bit */
1123 if (rar_low || rar_high)
1124 rar_high |= E1000_RAH_AV;
1127 ew32(RAL(index), rar_low);
1129 ew32(RAH(index), rar_high);
1134 if (index < hw->mac.rar_entry_count) {
1137 ret_val = e1000_acquire_swflag_ich8lan(hw);
1141 ew32(SHRAL(index - 1), rar_low);
1143 ew32(SHRAH(index - 1), rar_high);
1146 e1000_release_swflag_ich8lan(hw);
1148 /* verify the register updates */
1149 if ((er32(SHRAL(index - 1)) == rar_low) &&
1150 (er32(SHRAH(index - 1)) == rar_high))
1153 e_dbg("SHRA[%d] might be locked by ME - FWSM=0x%8.8x\n",
1154 (index - 1), er32(FWSM));
1158 e_dbg("Failed to write receive address at index %d\n", index);
1162 * e1000_rar_set_pch_lpt - Set receive address registers
1163 * @hw: pointer to the HW structure
1164 * @addr: pointer to the receive address
1165 * @index: receive address array register
1167 * Sets the receive address register array at index to the address passed
1168 * in by addr. For LPT, RAR[0] is the base address register that is to
1169 * contain the MAC address. SHRA[0-10] are the shared receive address
1170 * registers that are shared between the Host and manageability engine (ME).
1172 static void e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index)
1174 u32 rar_low, rar_high;
1177 /* HW expects these in little endian so we reverse the byte order
1178 * from network order (big endian) to little endian
1180 rar_low = ((u32)addr[0] | ((u32)addr[1] << 8) |
1181 ((u32)addr[2] << 16) | ((u32)addr[3] << 24));
1183 rar_high = ((u32)addr[4] | ((u32)addr[5] << 8));
1185 /* If MAC address zero, no need to set the AV bit */
1186 if (rar_low || rar_high)
1187 rar_high |= E1000_RAH_AV;
1190 ew32(RAL(index), rar_low);
1192 ew32(RAH(index), rar_high);
1197 /* The manageability engine (ME) can lock certain SHRAR registers that
1198 * it is using - those registers are unavailable for use.
1200 if (index < hw->mac.rar_entry_count) {
1201 wlock_mac = er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK;
1202 wlock_mac >>= E1000_FWSM_WLOCK_MAC_SHIFT;
1204 /* Check if all SHRAR registers are locked */
1208 if ((wlock_mac == 0) || (index <= wlock_mac)) {
1211 ret_val = e1000_acquire_swflag_ich8lan(hw);
1216 ew32(SHRAL_PCH_LPT(index - 1), rar_low);
1218 ew32(SHRAH_PCH_LPT(index - 1), rar_high);
1221 e1000_release_swflag_ich8lan(hw);
1223 /* verify the register updates */
1224 if ((er32(SHRAL_PCH_LPT(index - 1)) == rar_low) &&
1225 (er32(SHRAH_PCH_LPT(index - 1)) == rar_high))
1231 e_dbg("Failed to write receive address at index %d\n", index);
1235 * e1000_check_reset_block_ich8lan - Check if PHY reset is blocked
1236 * @hw: pointer to the HW structure
1238 * Checks if firmware is blocking the reset of the PHY.
1239 * This is a function pointer entry point only called by
1242 static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
1248 return (fwsm & E1000_ICH_FWSM_RSPCIPHY) ? 0 : E1000_BLK_PHY_RESET;
1252 * e1000_write_smbus_addr - Write SMBus address to PHY needed during Sx states
1253 * @hw: pointer to the HW structure
1255 * Assumes semaphore already acquired.
1258 static s32 e1000_write_smbus_addr(struct e1000_hw *hw)
1261 u32 strap = er32(STRAP);
1262 u32 freq = (strap & E1000_STRAP_SMT_FREQ_MASK) >>
1263 E1000_STRAP_SMT_FREQ_SHIFT;
1266 strap &= E1000_STRAP_SMBUS_ADDRESS_MASK;
1268 ret_val = e1000_read_phy_reg_hv_locked(hw, HV_SMB_ADDR, &phy_data);
1272 phy_data &= ~HV_SMB_ADDR_MASK;
1273 phy_data |= (strap >> E1000_STRAP_SMBUS_ADDRESS_SHIFT);
1274 phy_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID;
1276 if (hw->phy.type == e1000_phy_i217) {
1277 /* Restore SMBus frequency */
1279 phy_data &= ~HV_SMB_ADDR_FREQ_MASK;
1280 phy_data |= (freq & (1 << 0)) <<
1281 HV_SMB_ADDR_FREQ_LOW_SHIFT;
1282 phy_data |= (freq & (1 << 1)) <<
1283 (HV_SMB_ADDR_FREQ_HIGH_SHIFT - 1);
1285 e_dbg("Unsupported SMB frequency in PHY\n");
1289 return e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR, phy_data);
1293 * e1000_sw_lcd_config_ich8lan - SW-based LCD Configuration
1294 * @hw: pointer to the HW structure
1296 * SW should configure the LCD from the NVM extended configuration region
1297 * as a workaround for certain parts.
1299 static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
1301 struct e1000_phy_info *phy = &hw->phy;
1302 u32 i, data, cnf_size, cnf_base_addr, sw_cfg_mask;
1304 u16 word_addr, reg_data, reg_addr, phy_page = 0;
1306 /* Initialize the PHY from the NVM on ICH platforms. This
1307 * is needed due to an issue where the NVM configuration is
1308 * not properly autoloaded after power transitions.
1309 * Therefore, after each PHY reset, we will load the
1310 * configuration data out of the NVM manually.
1312 switch (hw->mac.type) {
1314 if (phy->type != e1000_phy_igp_3)
1317 if ((hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_AMT) ||
1318 (hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_C)) {
1319 sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG;
1326 sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M;
1332 ret_val = hw->phy.ops.acquire(hw);
1336 data = er32(FEXTNVM);
1337 if (!(data & sw_cfg_mask))
1340 /* Make sure HW does not configure LCD from PHY
1341 * extended configuration before SW configuration
1343 data = er32(EXTCNF_CTRL);
1344 if ((hw->mac.type < e1000_pch2lan) &&
1345 (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE))
1348 cnf_size = er32(EXTCNF_SIZE);
1349 cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK;
1350 cnf_size >>= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT;
1354 cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK;
1355 cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT;
1357 if (((hw->mac.type == e1000_pchlan) &&
1358 !(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)) ||
1359 (hw->mac.type > e1000_pchlan)) {
1360 /* HW configures the SMBus address and LEDs when the
1361 * OEM and LCD Write Enable bits are set in the NVM.
1362 * When both NVM bits are cleared, SW will configure
1365 ret_val = e1000_write_smbus_addr(hw);
1369 data = er32(LEDCTL);
1370 ret_val = e1000_write_phy_reg_hv_locked(hw, HV_LED_CONFIG,
1376 /* Configure LCD from extended configuration region. */
1378 /* cnf_base_addr is in DWORD */
1379 word_addr = (u16)(cnf_base_addr << 1);
1381 for (i = 0; i < cnf_size; i++) {
1382 ret_val = e1000_read_nvm(hw, (word_addr + i * 2), 1,
1387 ret_val = e1000_read_nvm(hw, (word_addr + i * 2 + 1),
1392 /* Save off the PHY page for future writes. */
1393 if (reg_addr == IGP01E1000_PHY_PAGE_SELECT) {
1394 phy_page = reg_data;
1398 reg_addr &= PHY_REG_MASK;
1399 reg_addr |= phy_page;
1401 ret_val = e1e_wphy_locked(hw, (u32)reg_addr, reg_data);
1407 hw->phy.ops.release(hw);
1412 * e1000_k1_gig_workaround_hv - K1 Si workaround
1413 * @hw: pointer to the HW structure
1414 * @link: link up bool flag
1416 * If K1 is enabled for 1Gbps, the MAC might stall when transitioning
1417 * from a lower speed. This workaround disables K1 whenever link is at 1Gig
1418 * If link is down, the function will restore the default K1 setting located
1421 static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link)
1425 bool k1_enable = hw->dev_spec.ich8lan.nvm_k1_enabled;
1427 if (hw->mac.type != e1000_pchlan)
1430 /* Wrap the whole flow with the sw flag */
1431 ret_val = hw->phy.ops.acquire(hw);
1435 /* Disable K1 when link is 1Gbps, otherwise use the NVM setting */
1437 if (hw->phy.type == e1000_phy_82578) {
1438 ret_val = e1e_rphy_locked(hw, BM_CS_STATUS,
1443 status_reg &= (BM_CS_STATUS_LINK_UP |
1444 BM_CS_STATUS_RESOLVED |
1445 BM_CS_STATUS_SPEED_MASK);
1447 if (status_reg == (BM_CS_STATUS_LINK_UP |
1448 BM_CS_STATUS_RESOLVED |
1449 BM_CS_STATUS_SPEED_1000))
1453 if (hw->phy.type == e1000_phy_82577) {
1454 ret_val = e1e_rphy_locked(hw, HV_M_STATUS, &status_reg);
1458 status_reg &= (HV_M_STATUS_LINK_UP |
1459 HV_M_STATUS_AUTONEG_COMPLETE |
1460 HV_M_STATUS_SPEED_MASK);
1462 if (status_reg == (HV_M_STATUS_LINK_UP |
1463 HV_M_STATUS_AUTONEG_COMPLETE |
1464 HV_M_STATUS_SPEED_1000))
1468 /* Link stall fix for link up */
1469 ret_val = e1e_wphy_locked(hw, PHY_REG(770, 19), 0x0100);
1474 /* Link stall fix for link down */
1475 ret_val = e1e_wphy_locked(hw, PHY_REG(770, 19), 0x4100);
1480 ret_val = e1000_configure_k1_ich8lan(hw, k1_enable);
1483 hw->phy.ops.release(hw);
1489 * e1000_configure_k1_ich8lan - Configure K1 power state
1490 * @hw: pointer to the HW structure
1491 * @enable: K1 state to configure
1493 * Configure the K1 power state based on the provided parameter.
1494 * Assumes semaphore already acquired.
1496 * Success returns 0, Failure returns -E1000_ERR_PHY (-2)
1498 s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable)
1506 ret_val = e1000e_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG,
1512 kmrn_reg |= E1000_KMRNCTRLSTA_K1_ENABLE;
1514 kmrn_reg &= ~E1000_KMRNCTRLSTA_K1_ENABLE;
1516 ret_val = e1000e_write_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG,
1522 ctrl_ext = er32(CTRL_EXT);
1523 ctrl_reg = er32(CTRL);
1525 reg = ctrl_reg & ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1526 reg |= E1000_CTRL_FRCSPD;
1529 ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_SPD_BYPS);
1532 ew32(CTRL, ctrl_reg);
1533 ew32(CTRL_EXT, ctrl_ext);
1541 * e1000_oem_bits_config_ich8lan - SW-based LCD Configuration
1542 * @hw: pointer to the HW structure
1543 * @d0_state: boolean if entering d0 or d3 device state
1545 * SW will configure Gbe Disable and LPLU based on the NVM. The four bits are
1546 * collectively called OEM bits. The OEM Write Enable bit and SW Config bit
1547 * in NVM determines whether HW should configure LPLU and Gbe Disable.
1549 static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state)
1555 if (hw->mac.type < e1000_pchlan)
1558 ret_val = hw->phy.ops.acquire(hw);
1562 if (hw->mac.type == e1000_pchlan) {
1563 mac_reg = er32(EXTCNF_CTRL);
1564 if (mac_reg & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)
1568 mac_reg = er32(FEXTNVM);
1569 if (!(mac_reg & E1000_FEXTNVM_SW_CONFIG_ICH8M))
1572 mac_reg = er32(PHY_CTRL);
1574 ret_val = e1e_rphy_locked(hw, HV_OEM_BITS, &oem_reg);
1578 oem_reg &= ~(HV_OEM_BITS_GBE_DIS | HV_OEM_BITS_LPLU);
1581 if (mac_reg & E1000_PHY_CTRL_GBE_DISABLE)
1582 oem_reg |= HV_OEM_BITS_GBE_DIS;
1584 if (mac_reg & E1000_PHY_CTRL_D0A_LPLU)
1585 oem_reg |= HV_OEM_BITS_LPLU;
1587 if (mac_reg & (E1000_PHY_CTRL_GBE_DISABLE |
1588 E1000_PHY_CTRL_NOND0A_GBE_DISABLE))
1589 oem_reg |= HV_OEM_BITS_GBE_DIS;
1591 if (mac_reg & (E1000_PHY_CTRL_D0A_LPLU |
1592 E1000_PHY_CTRL_NOND0A_LPLU))
1593 oem_reg |= HV_OEM_BITS_LPLU;
1596 /* Set Restart auto-neg to activate the bits */
1597 if ((d0_state || (hw->mac.type != e1000_pchlan)) &&
1598 !hw->phy.ops.check_reset_block(hw))
1599 oem_reg |= HV_OEM_BITS_RESTART_AN;
1601 ret_val = e1e_wphy_locked(hw, HV_OEM_BITS, oem_reg);
1604 hw->phy.ops.release(hw);
1611 * e1000_set_mdio_slow_mode_hv - Set slow MDIO access mode
1612 * @hw: pointer to the HW structure
1614 static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw)
1619 ret_val = e1e_rphy(hw, HV_KMRN_MODE_CTRL, &data);
1623 data |= HV_KMRN_MDIO_SLOW;
1625 ret_val = e1e_wphy(hw, HV_KMRN_MODE_CTRL, data);
1631 * e1000_hv_phy_workarounds_ich8lan - A series of Phy workarounds to be
1632 * done after every PHY reset.
1634 static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw)
1639 if (hw->mac.type != e1000_pchlan)
1642 /* Set MDIO slow mode before any other MDIO access */
1643 if (hw->phy.type == e1000_phy_82577) {
1644 ret_val = e1000_set_mdio_slow_mode_hv(hw);
1649 if (((hw->phy.type == e1000_phy_82577) &&
1650 ((hw->phy.revision == 1) || (hw->phy.revision == 2))) ||
1651 ((hw->phy.type == e1000_phy_82578) && (hw->phy.revision == 1))) {
1652 /* Disable generation of early preamble */
1653 ret_val = e1e_wphy(hw, PHY_REG(769, 25), 0x4431);
1657 /* Preamble tuning for SSC */
1658 ret_val = e1e_wphy(hw, HV_KMRN_FIFO_CTRLSTA, 0xA204);
1663 if (hw->phy.type == e1000_phy_82578) {
1664 /* Return registers to default by doing a soft reset then
1665 * writing 0x3140 to the control register.
1667 if (hw->phy.revision < 2) {
1668 e1000e_phy_sw_reset(hw);
1669 ret_val = e1e_wphy(hw, MII_BMCR, 0x3140);
1674 ret_val = hw->phy.ops.acquire(hw);
1679 ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0);
1680 hw->phy.ops.release(hw);
1684 /* Configure the K1 Si workaround during phy reset assuming there is
1685 * link so that it disables K1 if link is in 1Gbps.
1687 ret_val = e1000_k1_gig_workaround_hv(hw, true);
1691 /* Workaround for link disconnects on a busy hub in half duplex */
1692 ret_val = hw->phy.ops.acquire(hw);
1695 ret_val = e1e_rphy_locked(hw, BM_PORT_GEN_CFG, &phy_data);
1698 ret_val = e1e_wphy_locked(hw, BM_PORT_GEN_CFG, phy_data & 0x00FF);
1702 /* set MSE higher to enable link to stay up when noise is high */
1703 ret_val = e1000_write_emi_reg_locked(hw, I82577_MSE_THRESHOLD, 0x0034);
1705 hw->phy.ops.release(hw);
1711 * e1000_copy_rx_addrs_to_phy_ich8lan - Copy Rx addresses from MAC to PHY
1712 * @hw: pointer to the HW structure
1714 void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw)
1720 ret_val = hw->phy.ops.acquire(hw);
1723 ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg);
1727 /* Copy both RAL/H (rar_entry_count) and SHRAL/H (+4) to PHY */
1728 for (i = 0; i < (hw->mac.rar_entry_count + 4); i++) {
1729 mac_reg = er32(RAL(i));
1730 hw->phy.ops.write_reg_page(hw, BM_RAR_L(i),
1731 (u16)(mac_reg & 0xFFFF));
1732 hw->phy.ops.write_reg_page(hw, BM_RAR_M(i),
1733 (u16)((mac_reg >> 16) & 0xFFFF));
1735 mac_reg = er32(RAH(i));
1736 hw->phy.ops.write_reg_page(hw, BM_RAR_H(i),
1737 (u16)(mac_reg & 0xFFFF));
1738 hw->phy.ops.write_reg_page(hw, BM_RAR_CTRL(i),
1739 (u16)((mac_reg & E1000_RAH_AV)
1743 e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg);
1746 hw->phy.ops.release(hw);
1750 * e1000_lv_jumbo_workaround_ich8lan - required for jumbo frame operation
1752 * @hw: pointer to the HW structure
1753 * @enable: flag to enable/disable workaround when enabling/disabling jumbos
1755 s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
1762 if (hw->mac.type < e1000_pch2lan)
1765 /* disable Rx path while enabling/disabling workaround */
1766 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1767 ret_val = e1e_wphy(hw, PHY_REG(769, 20), phy_reg | (1 << 14));
1772 /* Write Rx addresses (rar_entry_count for RAL/H, +4 for
1773 * SHRAL/H) and initial CRC values to the MAC
1775 for (i = 0; i < (hw->mac.rar_entry_count + 4); i++) {
1776 u8 mac_addr[ETH_ALEN] = { 0 };
1777 u32 addr_high, addr_low;
1779 addr_high = er32(RAH(i));
1780 if (!(addr_high & E1000_RAH_AV))
1782 addr_low = er32(RAL(i));
1783 mac_addr[0] = (addr_low & 0xFF);
1784 mac_addr[1] = ((addr_low >> 8) & 0xFF);
1785 mac_addr[2] = ((addr_low >> 16) & 0xFF);
1786 mac_addr[3] = ((addr_low >> 24) & 0xFF);
1787 mac_addr[4] = (addr_high & 0xFF);
1788 mac_addr[5] = ((addr_high >> 8) & 0xFF);
1790 ew32(PCH_RAICC(i), ~ether_crc_le(ETH_ALEN, mac_addr));
1793 /* Write Rx addresses to the PHY */
1794 e1000_copy_rx_addrs_to_phy_ich8lan(hw);
1796 /* Enable jumbo frame workaround in the MAC */
1797 mac_reg = er32(FFLT_DBG);
1798 mac_reg &= ~(1 << 14);
1799 mac_reg |= (7 << 15);
1800 ew32(FFLT_DBG, mac_reg);
1802 mac_reg = er32(RCTL);
1803 mac_reg |= E1000_RCTL_SECRC;
1804 ew32(RCTL, mac_reg);
1806 ret_val = e1000e_read_kmrn_reg(hw,
1807 E1000_KMRNCTRLSTA_CTRL_OFFSET,
1811 ret_val = e1000e_write_kmrn_reg(hw,
1812 E1000_KMRNCTRLSTA_CTRL_OFFSET,
1816 ret_val = e1000e_read_kmrn_reg(hw,
1817 E1000_KMRNCTRLSTA_HD_CTRL,
1821 data &= ~(0xF << 8);
1823 ret_val = e1000e_write_kmrn_reg(hw,
1824 E1000_KMRNCTRLSTA_HD_CTRL,
1829 /* Enable jumbo frame workaround in the PHY */
1830 e1e_rphy(hw, PHY_REG(769, 23), &data);
1831 data &= ~(0x7F << 5);
1832 data |= (0x37 << 5);
1833 ret_val = e1e_wphy(hw, PHY_REG(769, 23), data);
1836 e1e_rphy(hw, PHY_REG(769, 16), &data);
1838 ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
1841 e1e_rphy(hw, PHY_REG(776, 20), &data);
1842 data &= ~(0x3FF << 2);
1843 data |= (0x1A << 2);
1844 ret_val = e1e_wphy(hw, PHY_REG(776, 20), data);
1847 ret_val = e1e_wphy(hw, PHY_REG(776, 23), 0xF100);
1850 e1e_rphy(hw, HV_PM_CTRL, &data);
1851 ret_val = e1e_wphy(hw, HV_PM_CTRL, data | (1 << 10));
1855 /* Write MAC register values back to h/w defaults */
1856 mac_reg = er32(FFLT_DBG);
1857 mac_reg &= ~(0xF << 14);
1858 ew32(FFLT_DBG, mac_reg);
1860 mac_reg = er32(RCTL);
1861 mac_reg &= ~E1000_RCTL_SECRC;
1862 ew32(RCTL, mac_reg);
1864 ret_val = e1000e_read_kmrn_reg(hw,
1865 E1000_KMRNCTRLSTA_CTRL_OFFSET,
1869 ret_val = e1000e_write_kmrn_reg(hw,
1870 E1000_KMRNCTRLSTA_CTRL_OFFSET,
1874 ret_val = e1000e_read_kmrn_reg(hw,
1875 E1000_KMRNCTRLSTA_HD_CTRL,
1879 data &= ~(0xF << 8);
1881 ret_val = e1000e_write_kmrn_reg(hw,
1882 E1000_KMRNCTRLSTA_HD_CTRL,
1887 /* Write PHY register values back to h/w defaults */
1888 e1e_rphy(hw, PHY_REG(769, 23), &data);
1889 data &= ~(0x7F << 5);
1890 ret_val = e1e_wphy(hw, PHY_REG(769, 23), data);
1893 e1e_rphy(hw, PHY_REG(769, 16), &data);
1895 ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
1898 e1e_rphy(hw, PHY_REG(776, 20), &data);
1899 data &= ~(0x3FF << 2);
1901 ret_val = e1e_wphy(hw, PHY_REG(776, 20), data);
1904 ret_val = e1e_wphy(hw, PHY_REG(776, 23), 0x7E00);
1907 e1e_rphy(hw, HV_PM_CTRL, &data);
1908 ret_val = e1e_wphy(hw, HV_PM_CTRL, data & ~(1 << 10));
1913 /* re-enable Rx path after enabling/disabling workaround */
1914 return e1e_wphy(hw, PHY_REG(769, 20), phy_reg & ~(1 << 14));
1918 * e1000_lv_phy_workarounds_ich8lan - A series of Phy workarounds to be
1919 * done after every PHY reset.
1921 static s32 e1000_lv_phy_workarounds_ich8lan(struct e1000_hw *hw)
1925 if (hw->mac.type != e1000_pch2lan)
1928 /* Set MDIO slow mode before any other MDIO access */
1929 ret_val = e1000_set_mdio_slow_mode_hv(hw);
1933 ret_val = hw->phy.ops.acquire(hw);
1936 /* set MSE higher to enable link to stay up when noise is high */
1937 ret_val = e1000_write_emi_reg_locked(hw, I82579_MSE_THRESHOLD, 0x0034);
1940 /* drop link after 5 times MSE threshold was reached */
1941 ret_val = e1000_write_emi_reg_locked(hw, I82579_MSE_LINK_DOWN, 0x0005);
1943 hw->phy.ops.release(hw);
1949 * e1000_k1_gig_workaround_lv - K1 Si workaround
1950 * @hw: pointer to the HW structure
1952 * Workaround to set the K1 beacon duration for 82579 parts
1954 static s32 e1000_k1_workaround_lv(struct e1000_hw *hw)
1961 if (hw->mac.type != e1000_pch2lan)
1964 /* Set K1 beacon duration based on 1Gbps speed or otherwise */
1965 ret_val = e1e_rphy(hw, HV_M_STATUS, &status_reg);
1969 if ((status_reg & (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE))
1970 == (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE)) {
1971 mac_reg = er32(FEXTNVM4);
1972 mac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK;
1974 ret_val = e1e_rphy(hw, I82579_LPI_CTRL, &phy_reg);
1978 if (status_reg & HV_M_STATUS_SPEED_1000) {
1981 mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_8USEC;
1982 phy_reg &= ~I82579_LPI_CTRL_FORCE_PLL_LOCK_COUNT;
1983 /* LV 1G Packet drop issue wa */
1984 ret_val = e1e_rphy(hw, HV_PM_CTRL, &pm_phy_reg);
1987 pm_phy_reg &= ~HV_PM_CTRL_PLL_STOP_IN_K1_GIGA;
1988 ret_val = e1e_wphy(hw, HV_PM_CTRL, pm_phy_reg);
1992 mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_16USEC;
1993 phy_reg |= I82579_LPI_CTRL_FORCE_PLL_LOCK_COUNT;
1995 ew32(FEXTNVM4, mac_reg);
1996 ret_val = e1e_wphy(hw, I82579_LPI_CTRL, phy_reg);
2003 * e1000_gate_hw_phy_config_ich8lan - disable PHY config via hardware
2004 * @hw: pointer to the HW structure
2005 * @gate: boolean set to true to gate, false to ungate
2007 * Gate/ungate the automatic PHY configuration via hardware; perform
2008 * the configuration via software instead.
2010 static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate)
2014 if (hw->mac.type < e1000_pch2lan)
2017 extcnf_ctrl = er32(EXTCNF_CTRL);
2020 extcnf_ctrl |= E1000_EXTCNF_CTRL_GATE_PHY_CFG;
2022 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_GATE_PHY_CFG;
2024 ew32(EXTCNF_CTRL, extcnf_ctrl);
2028 * e1000_lan_init_done_ich8lan - Check for PHY config completion
2029 * @hw: pointer to the HW structure
2031 * Check the appropriate indication the MAC has finished configuring the
2032 * PHY after a software reset.
2034 static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw)
2036 u32 data, loop = E1000_ICH8_LAN_INIT_TIMEOUT;
2038 /* Wait for basic configuration completes before proceeding */
2040 data = er32(STATUS);
2041 data &= E1000_STATUS_LAN_INIT_DONE;
2043 } while ((!data) && --loop);
2045 /* If basic configuration is incomplete before the above loop
2046 * count reaches 0, loading the configuration from NVM will
2047 * leave the PHY in a bad state possibly resulting in no link.
2050 e_dbg("LAN_INIT_DONE not set, increase timeout\n");
2052 /* Clear the Init Done bit for the next init event */
2053 data = er32(STATUS);
2054 data &= ~E1000_STATUS_LAN_INIT_DONE;
2059 * e1000_post_phy_reset_ich8lan - Perform steps required after a PHY reset
2060 * @hw: pointer to the HW structure
2062 static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw)
2067 if (hw->phy.ops.check_reset_block(hw))
2070 /* Allow time for h/w to get to quiescent state after reset */
2071 usleep_range(10000, 20000);
2073 /* Perform any necessary post-reset workarounds */
2074 switch (hw->mac.type) {
2076 ret_val = e1000_hv_phy_workarounds_ich8lan(hw);
2081 ret_val = e1000_lv_phy_workarounds_ich8lan(hw);
2089 /* Clear the host wakeup bit after lcd reset */
2090 if (hw->mac.type >= e1000_pchlan) {
2091 e1e_rphy(hw, BM_PORT_GEN_CFG, ®);
2092 reg &= ~BM_WUC_HOST_WU_BIT;
2093 e1e_wphy(hw, BM_PORT_GEN_CFG, reg);
2096 /* Configure the LCD with the extended configuration region in NVM */
2097 ret_val = e1000_sw_lcd_config_ich8lan(hw);
2101 /* Configure the LCD with the OEM bits in NVM */
2102 ret_val = e1000_oem_bits_config_ich8lan(hw, true);
2104 if (hw->mac.type == e1000_pch2lan) {
2105 /* Ungate automatic PHY configuration on non-managed 82579 */
2106 if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
2107 usleep_range(10000, 20000);
2108 e1000_gate_hw_phy_config_ich8lan(hw, false);
2111 /* Set EEE LPI Update Timer to 200usec */
2112 ret_val = hw->phy.ops.acquire(hw);
2115 ret_val = e1000_write_emi_reg_locked(hw,
2116 I82579_LPI_UPDATE_TIMER,
2118 hw->phy.ops.release(hw);
2125 * e1000_phy_hw_reset_ich8lan - Performs a PHY reset
2126 * @hw: pointer to the HW structure
2129 * This is a function pointer entry point called by drivers
2130 * or other shared routines.
2132 static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
2136 /* Gate automatic PHY configuration by hardware on non-managed 82579 */
2137 if ((hw->mac.type == e1000_pch2lan) &&
2138 !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
2139 e1000_gate_hw_phy_config_ich8lan(hw, true);
2141 ret_val = e1000e_phy_hw_reset_generic(hw);
2145 return e1000_post_phy_reset_ich8lan(hw);
2149 * e1000_set_lplu_state_pchlan - Set Low Power Link Up state
2150 * @hw: pointer to the HW structure
2151 * @active: true to enable LPLU, false to disable
2153 * Sets the LPLU state according to the active flag. For PCH, if OEM write
2154 * bit are disabled in the NVM, writing the LPLU bits in the MAC will not set
2155 * the phy speed. This function will manually set the LPLU bit and restart
2156 * auto-neg as hw would do. D3 and D0 LPLU will call the same function
2157 * since it configures the same bit.
2159 static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active)
2164 ret_val = e1e_rphy(hw, HV_OEM_BITS, &oem_reg);
2169 oem_reg |= HV_OEM_BITS_LPLU;
2171 oem_reg &= ~HV_OEM_BITS_LPLU;
2173 if (!hw->phy.ops.check_reset_block(hw))
2174 oem_reg |= HV_OEM_BITS_RESTART_AN;
2176 return e1e_wphy(hw, HV_OEM_BITS, oem_reg);
2180 * e1000_set_d0_lplu_state_ich8lan - Set Low Power Linkup D0 state
2181 * @hw: pointer to the HW structure
2182 * @active: true to enable LPLU, false to disable
2184 * Sets the LPLU D0 state according to the active flag. When
2185 * activating LPLU this function also disables smart speed
2186 * and vice versa. LPLU will not be activated unless the
2187 * device autonegotiation advertisement meets standards of
2188 * either 10 or 10/100 or 10/100/1000 at all duplexes.
2189 * This is a function pointer entry point only called by
2190 * PHY setup routines.
2192 static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
2194 struct e1000_phy_info *phy = &hw->phy;
2199 if (phy->type == e1000_phy_ife)
2202 phy_ctrl = er32(PHY_CTRL);
2205 phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU;
2206 ew32(PHY_CTRL, phy_ctrl);
2208 if (phy->type != e1000_phy_igp_3)
2211 /* Call gig speed drop workaround on LPLU before accessing
2214 if (hw->mac.type == e1000_ich8lan)
2215 e1000e_gig_downshift_workaround_ich8lan(hw);
2217 /* When LPLU is enabled, we should disable SmartSpeed */
2218 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
2221 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
2222 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
2226 phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU;
2227 ew32(PHY_CTRL, phy_ctrl);
2229 if (phy->type != e1000_phy_igp_3)
2232 /* LPLU and SmartSpeed are mutually exclusive. LPLU is used
2233 * during Dx states where the power conservation is most
2234 * important. During driver activity we should enable
2235 * SmartSpeed, so performance is maintained.
2237 if (phy->smart_speed == e1000_smart_speed_on) {
2238 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2243 data |= IGP01E1000_PSCFR_SMART_SPEED;
2244 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2248 } else if (phy->smart_speed == e1000_smart_speed_off) {
2249 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2254 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
2255 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2266 * e1000_set_d3_lplu_state_ich8lan - Set Low Power Linkup D3 state
2267 * @hw: pointer to the HW structure
2268 * @active: true to enable LPLU, false to disable
2270 * Sets the LPLU D3 state according to the active flag. When
2271 * activating LPLU this function also disables smart speed
2272 * and vice versa. LPLU will not be activated unless the
2273 * device autonegotiation advertisement meets standards of
2274 * either 10 or 10/100 or 10/100/1000 at all duplexes.
2275 * This is a function pointer entry point only called by
2276 * PHY setup routines.
2278 static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
2280 struct e1000_phy_info *phy = &hw->phy;
2285 phy_ctrl = er32(PHY_CTRL);
2288 phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU;
2289 ew32(PHY_CTRL, phy_ctrl);
2291 if (phy->type != e1000_phy_igp_3)
2294 /* LPLU and SmartSpeed are mutually exclusive. LPLU is used
2295 * during Dx states where the power conservation is most
2296 * important. During driver activity we should enable
2297 * SmartSpeed, so performance is maintained.
2299 if (phy->smart_speed == e1000_smart_speed_on) {
2300 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2305 data |= IGP01E1000_PSCFR_SMART_SPEED;
2306 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2310 } else if (phy->smart_speed == e1000_smart_speed_off) {
2311 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2316 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
2317 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2322 } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
2323 (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
2324 (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
2325 phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU;
2326 ew32(PHY_CTRL, phy_ctrl);
2328 if (phy->type != e1000_phy_igp_3)
2331 /* Call gig speed drop workaround on LPLU before accessing
2334 if (hw->mac.type == e1000_ich8lan)
2335 e1000e_gig_downshift_workaround_ich8lan(hw);
2337 /* When LPLU is enabled, we should disable SmartSpeed */
2338 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
2342 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
2343 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
2350 * e1000_valid_nvm_bank_detect_ich8lan - finds out the valid bank 0 or 1
2351 * @hw: pointer to the HW structure
2352 * @bank: pointer to the variable that returns the active bank
2354 * Reads signature byte from the NVM using the flash access registers.
2355 * Word 0x13 bits 15:14 = 10b indicate a valid signature for that bank.
2357 static s32 e1000_valid_nvm_bank_detect_ich8lan(struct e1000_hw *hw, u32 *bank)
2360 struct e1000_nvm_info *nvm = &hw->nvm;
2361 u32 bank1_offset = nvm->flash_bank_size * sizeof(u16);
2362 u32 act_offset = E1000_ICH_NVM_SIG_WORD * 2 + 1;
2366 switch (hw->mac.type) {
2370 if ((eecd & E1000_EECD_SEC1VAL_VALID_MASK) ==
2371 E1000_EECD_SEC1VAL_VALID_MASK) {
2372 if (eecd & E1000_EECD_SEC1VAL)
2379 e_dbg("Unable to determine valid NVM bank via EEC - reading flash signature\n");
2382 /* set bank to 0 in case flash read fails */
2386 ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset,
2390 if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
2391 E1000_ICH_NVM_SIG_VALUE) {
2397 ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset +
2402 if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
2403 E1000_ICH_NVM_SIG_VALUE) {
2408 e_dbg("ERROR: No valid NVM bank present\n");
2409 return -E1000_ERR_NVM;
2414 * e1000_read_nvm_ich8lan - Read word(s) from the NVM
2415 * @hw: pointer to the HW structure
2416 * @offset: The offset (in bytes) of the word(s) to read.
2417 * @words: Size of data to read in words
2418 * @data: Pointer to the word(s) to read at offset.
2420 * Reads a word(s) from the NVM using the flash access registers.
2422 static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
2425 struct e1000_nvm_info *nvm = &hw->nvm;
2426 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
2432 if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
2434 e_dbg("nvm parameter(s) out of bounds\n");
2435 ret_val = -E1000_ERR_NVM;
2439 nvm->ops.acquire(hw);
2441 ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
2443 e_dbg("Could not detect valid bank, assuming bank 0\n");
2447 act_offset = (bank) ? nvm->flash_bank_size : 0;
2448 act_offset += offset;
2451 for (i = 0; i < words; i++) {
2452 if (dev_spec->shadow_ram[offset + i].modified) {
2453 data[i] = dev_spec->shadow_ram[offset + i].value;
2455 ret_val = e1000_read_flash_word_ich8lan(hw,
2464 nvm->ops.release(hw);
2468 e_dbg("NVM read error: %d\n", ret_val);
2474 * e1000_flash_cycle_init_ich8lan - Initialize flash
2475 * @hw: pointer to the HW structure
2477 * This function does initial flash setup so that a new read/write/erase cycle
2480 static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw)
2482 union ich8_hws_flash_status hsfsts;
2483 s32 ret_val = -E1000_ERR_NVM;
2485 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2487 /* Check if the flash descriptor is valid */
2488 if (!hsfsts.hsf_status.fldesvalid) {
2489 e_dbg("Flash descriptor invalid. SW Sequencing must be used.\n");
2490 return -E1000_ERR_NVM;
2493 /* Clear FCERR and DAEL in hw status by writing 1 */
2494 hsfsts.hsf_status.flcerr = 1;
2495 hsfsts.hsf_status.dael = 1;
2497 ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
2499 /* Either we should have a hardware SPI cycle in progress
2500 * bit to check against, in order to start a new cycle or
2501 * FDONE bit should be changed in the hardware so that it
2502 * is 1 after hardware reset, which can then be used as an
2503 * indication whether a cycle is in progress or has been
2507 if (!hsfsts.hsf_status.flcinprog) {
2508 /* There is no cycle running at present,
2509 * so we can start a cycle.
2510 * Begin by setting Flash Cycle Done.
2512 hsfsts.hsf_status.flcdone = 1;
2513 ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
2518 /* Otherwise poll for sometime so the current
2519 * cycle has a chance to end before giving up.
2521 for (i = 0; i < ICH_FLASH_READ_COMMAND_TIMEOUT; i++) {
2522 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2523 if (!hsfsts.hsf_status.flcinprog) {
2530 /* Successful in waiting for previous cycle to timeout,
2531 * now set the Flash Cycle Done.
2533 hsfsts.hsf_status.flcdone = 1;
2534 ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
2536 e_dbg("Flash controller busy, cannot get access\n");
2544 * e1000_flash_cycle_ich8lan - Starts flash cycle (read/write/erase)
2545 * @hw: pointer to the HW structure
2546 * @timeout: maximum time to wait for completion
2548 * This function starts a flash cycle and waits for its completion.
2550 static s32 e1000_flash_cycle_ich8lan(struct e1000_hw *hw, u32 timeout)
2552 union ich8_hws_flash_ctrl hsflctl;
2553 union ich8_hws_flash_status hsfsts;
2556 /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */
2557 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
2558 hsflctl.hsf_ctrl.flcgo = 1;
2559 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
2561 /* wait till FDONE bit is set to 1 */
2563 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2564 if (hsfsts.hsf_status.flcdone)
2567 } while (i++ < timeout);
2569 if (hsfsts.hsf_status.flcdone && !hsfsts.hsf_status.flcerr)
2572 return -E1000_ERR_NVM;
2576 * e1000_read_flash_word_ich8lan - Read word from flash
2577 * @hw: pointer to the HW structure
2578 * @offset: offset to data location
2579 * @data: pointer to the location for storing the data
2581 * Reads the flash word at offset into data. Offset is converted
2582 * to bytes before read.
2584 static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
2587 /* Must convert offset into bytes. */
2590 return e1000_read_flash_data_ich8lan(hw, offset, 2, data);
2594 * e1000_read_flash_byte_ich8lan - Read byte from flash
2595 * @hw: pointer to the HW structure
2596 * @offset: The offset of the byte to read.
2597 * @data: Pointer to a byte to store the value read.
2599 * Reads a single byte from the NVM using the flash access registers.
2601 static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
2607 ret_val = e1000_read_flash_data_ich8lan(hw, offset, 1, &word);
2617 * e1000_read_flash_data_ich8lan - Read byte or word from NVM
2618 * @hw: pointer to the HW structure
2619 * @offset: The offset (in bytes) of the byte or word to read.
2620 * @size: Size of data to read, 1=byte 2=word
2621 * @data: Pointer to the word to store the value read.
2623 * Reads a byte or word from the NVM using the flash access registers.
2625 static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
2628 union ich8_hws_flash_status hsfsts;
2629 union ich8_hws_flash_ctrl hsflctl;
2630 u32 flash_linear_addr;
2632 s32 ret_val = -E1000_ERR_NVM;
2635 if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK)
2636 return -E1000_ERR_NVM;
2638 flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) +
2639 hw->nvm.flash_base_addr);
2644 ret_val = e1000_flash_cycle_init_ich8lan(hw);
2648 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
2649 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
2650 hsflctl.hsf_ctrl.fldbcount = size - 1;
2651 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ;
2652 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
2654 ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
2657 e1000_flash_cycle_ich8lan(hw,
2658 ICH_FLASH_READ_COMMAND_TIMEOUT);
2660 /* Check if FCERR is set to 1, if set to 1, clear it
2661 * and try the whole sequence a few more times, else
2662 * read in (shift in) the Flash Data0, the order is
2663 * least significant byte first msb to lsb
2666 flash_data = er32flash(ICH_FLASH_FDATA0);
2668 *data = (u8)(flash_data & 0x000000FF);
2670 *data = (u16)(flash_data & 0x0000FFFF);
2673 /* If we've gotten here, then things are probably
2674 * completely hosed, but if the error condition is
2675 * detected, it won't hurt to give it another try...
2676 * ICH_FLASH_CYCLE_REPEAT_COUNT times.
2678 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2679 if (hsfsts.hsf_status.flcerr) {
2680 /* Repeat for some time before giving up. */
2682 } else if (!hsfsts.hsf_status.flcdone) {
2683 e_dbg("Timeout error - flash cycle did not complete.\n");
2687 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
2693 * e1000_write_nvm_ich8lan - Write word(s) to the NVM
2694 * @hw: pointer to the HW structure
2695 * @offset: The offset (in bytes) of the word(s) to write.
2696 * @words: Size of data to write in words
2697 * @data: Pointer to the word(s) to write at offset.
2699 * Writes a byte or word to the NVM using the flash access registers.
2701 static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
2704 struct e1000_nvm_info *nvm = &hw->nvm;
2705 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
2708 if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
2710 e_dbg("nvm parameter(s) out of bounds\n");
2711 return -E1000_ERR_NVM;
2714 nvm->ops.acquire(hw);
2716 for (i = 0; i < words; i++) {
2717 dev_spec->shadow_ram[offset + i].modified = true;
2718 dev_spec->shadow_ram[offset + i].value = data[i];
2721 nvm->ops.release(hw);
2727 * e1000_update_nvm_checksum_ich8lan - Update the checksum for NVM
2728 * @hw: pointer to the HW structure
2730 * The NVM checksum is updated by calling the generic update_nvm_checksum,
2731 * which writes the checksum to the shadow ram. The changes in the shadow
2732 * ram are then committed to the EEPROM by processing each bank at a time
2733 * checking for the modified bit and writing only the pending changes.
2734 * After a successful commit, the shadow ram is cleared and is ready for
2737 static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
2739 struct e1000_nvm_info *nvm = &hw->nvm;
2740 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
2741 u32 i, act_offset, new_bank_offset, old_bank_offset, bank;
2745 ret_val = e1000e_update_nvm_checksum_generic(hw);
2749 if (nvm->type != e1000_nvm_flash_sw)
2752 nvm->ops.acquire(hw);
2754 /* We're writing to the opposite bank so if we're on bank 1,
2755 * write to bank 0 etc. We also need to erase the segment that
2756 * is going to be written
2758 ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
2760 e_dbg("Could not detect valid bank, assuming bank 0\n");
2765 new_bank_offset = nvm->flash_bank_size;
2766 old_bank_offset = 0;
2767 ret_val = e1000_erase_flash_bank_ich8lan(hw, 1);
2771 old_bank_offset = nvm->flash_bank_size;
2772 new_bank_offset = 0;
2773 ret_val = e1000_erase_flash_bank_ich8lan(hw, 0);
2778 for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) {
2779 /* Determine whether to write the value stored
2780 * in the other NVM bank or a modified value stored
2783 if (dev_spec->shadow_ram[i].modified) {
2784 data = dev_spec->shadow_ram[i].value;
2786 ret_val = e1000_read_flash_word_ich8lan(hw, i +
2793 /* If the word is 0x13, then make sure the signature bits
2794 * (15:14) are 11b until the commit has completed.
2795 * This will allow us to write 10b which indicates the
2796 * signature is valid. We want to do this after the write
2797 * has completed so that we don't mark the segment valid
2798 * while the write is still in progress
2800 if (i == E1000_ICH_NVM_SIG_WORD)
2801 data |= E1000_ICH_NVM_SIG_MASK;
2803 /* Convert offset to bytes. */
2804 act_offset = (i + new_bank_offset) << 1;
2807 /* Write the bytes to the new bank. */
2808 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
2815 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
2822 /* Don't bother writing the segment valid bits if sector
2823 * programming failed.
2826 /* Possibly read-only, see e1000e_write_protect_nvm_ich8lan() */
2827 e_dbg("Flash commit failed.\n");
2831 /* Finally validate the new segment by setting bit 15:14
2832 * to 10b in word 0x13 , this can be done without an
2833 * erase as well since these bits are 11 to start with
2834 * and we need to change bit 14 to 0b
2836 act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD;
2837 ret_val = e1000_read_flash_word_ich8lan(hw, act_offset, &data);
2842 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
2848 /* And invalidate the previously valid segment by setting
2849 * its signature word (0x13) high_byte to 0b. This can be
2850 * done without an erase because flash erase sets all bits
2851 * to 1's. We can write 1's to 0's without an erase
2853 act_offset = (old_bank_offset + E1000_ICH_NVM_SIG_WORD) * 2 + 1;
2854 ret_val = e1000_retry_write_flash_byte_ich8lan(hw, act_offset, 0);
2858 /* Great! Everything worked, we can now clear the cached entries. */
2859 for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) {
2860 dev_spec->shadow_ram[i].modified = false;
2861 dev_spec->shadow_ram[i].value = 0xFFFF;
2865 nvm->ops.release(hw);
2867 /* Reload the EEPROM, or else modifications will not appear
2868 * until after the next adapter reset.
2871 nvm->ops.reload(hw);
2872 usleep_range(10000, 20000);
2877 e_dbg("NVM update error: %d\n", ret_val);
2883 * e1000_validate_nvm_checksum_ich8lan - Validate EEPROM checksum
2884 * @hw: pointer to the HW structure
2886 * Check to see if checksum needs to be fixed by reading bit 6 in word 0x19.
2887 * If the bit is 0, that the EEPROM had been modified, but the checksum was not
2888 * calculated, in which case we need to calculate the checksum and set bit 6.
2890 static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw)
2895 u16 valid_csum_mask;
2897 /* Read NVM and check Invalid Image CSUM bit. If this bit is 0,
2898 * the checksum needs to be fixed. This bit is an indication that
2899 * the NVM was prepared by OEM software and did not calculate
2900 * the checksum...a likely scenario.
2902 switch (hw->mac.type) {
2905 valid_csum_mask = NVM_COMPAT_VALID_CSUM;
2908 word = NVM_FUTURE_INIT_WORD1;
2909 valid_csum_mask = NVM_FUTURE_INIT_WORD1_VALID_CSUM;
2913 ret_val = e1000_read_nvm(hw, word, 1, &data);
2917 if (!(data & valid_csum_mask)) {
2918 data |= valid_csum_mask;
2919 ret_val = e1000_write_nvm(hw, word, 1, &data);
2922 ret_val = e1000e_update_nvm_checksum(hw);
2927 return e1000e_validate_nvm_checksum_generic(hw);
2931 * e1000e_write_protect_nvm_ich8lan - Make the NVM read-only
2932 * @hw: pointer to the HW structure
2934 * To prevent malicious write/erase of the NVM, set it to be read-only
2935 * so that the hardware ignores all write/erase cycles of the NVM via
2936 * the flash control registers. The shadow-ram copy of the NVM will
2937 * still be updated, however any updates to this copy will not stick
2938 * across driver reloads.
2940 void e1000e_write_protect_nvm_ich8lan(struct e1000_hw *hw)
2942 struct e1000_nvm_info *nvm = &hw->nvm;
2943 union ich8_flash_protected_range pr0;
2944 union ich8_hws_flash_status hsfsts;
2947 nvm->ops.acquire(hw);
2949 gfpreg = er32flash(ICH_FLASH_GFPREG);
2951 /* Write-protect GbE Sector of NVM */
2952 pr0.regval = er32flash(ICH_FLASH_PR0);
2953 pr0.range.base = gfpreg & FLASH_GFPREG_BASE_MASK;
2954 pr0.range.limit = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK);
2955 pr0.range.wpe = true;
2956 ew32flash(ICH_FLASH_PR0, pr0.regval);
2958 /* Lock down a subset of GbE Flash Control Registers, e.g.
2959 * PR0 to prevent the write-protection from being lifted.
2960 * Once FLOCKDN is set, the registers protected by it cannot
2961 * be written until FLOCKDN is cleared by a hardware reset.
2963 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2964 hsfsts.hsf_status.flockdn = true;
2965 ew32flash(ICH_FLASH_HSFSTS, hsfsts.regval);
2967 nvm->ops.release(hw);
2971 * e1000_write_flash_data_ich8lan - Writes bytes to the NVM
2972 * @hw: pointer to the HW structure
2973 * @offset: The offset (in bytes) of the byte/word to read.
2974 * @size: Size of data to read, 1=byte 2=word
2975 * @data: The byte(s) to write to the NVM.
2977 * Writes one/two bytes to the NVM using the flash access registers.
2979 static s32 e1000_write_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
2982 union ich8_hws_flash_status hsfsts;
2983 union ich8_hws_flash_ctrl hsflctl;
2984 u32 flash_linear_addr;
2989 if (size < 1 || size > 2 || data > size * 0xff ||
2990 offset > ICH_FLASH_LINEAR_ADDR_MASK)
2991 return -E1000_ERR_NVM;
2993 flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) +
2994 hw->nvm.flash_base_addr);
2999 ret_val = e1000_flash_cycle_init_ich8lan(hw);
3003 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
3004 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
3005 hsflctl.hsf_ctrl.fldbcount = size - 1;
3006 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE;
3007 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
3009 ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
3012 flash_data = (u32)data & 0x00FF;
3014 flash_data = (u32)data;
3016 ew32flash(ICH_FLASH_FDATA0, flash_data);
3018 /* check if FCERR is set to 1 , if set to 1, clear it
3019 * and try the whole sequence a few more times else done
3022 e1000_flash_cycle_ich8lan(hw,
3023 ICH_FLASH_WRITE_COMMAND_TIMEOUT);
3027 /* If we're here, then things are most likely
3028 * completely hosed, but if the error condition
3029 * is detected, it won't hurt to give it another
3030 * try...ICH_FLASH_CYCLE_REPEAT_COUNT times.
3032 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
3033 if (hsfsts.hsf_status.flcerr)
3034 /* Repeat for some time before giving up. */
3036 if (!hsfsts.hsf_status.flcdone) {
3037 e_dbg("Timeout error - flash cycle did not complete.\n");
3040 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
3046 * e1000_write_flash_byte_ich8lan - Write a single byte to NVM
3047 * @hw: pointer to the HW structure
3048 * @offset: The index of the byte to read.
3049 * @data: The byte to write to the NVM.
3051 * Writes a single byte to the NVM using the flash access registers.
3053 static s32 e1000_write_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
3056 u16 word = (u16)data;
3058 return e1000_write_flash_data_ich8lan(hw, offset, 1, word);
3062 * e1000_retry_write_flash_byte_ich8lan - Writes a single byte to NVM
3063 * @hw: pointer to the HW structure
3064 * @offset: The offset of the byte to write.
3065 * @byte: The byte to write to the NVM.
3067 * Writes a single byte to the NVM using the flash access registers.
3068 * Goes through a retry algorithm before giving up.
3070 static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
3071 u32 offset, u8 byte)
3074 u16 program_retries;
3076 ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
3080 for (program_retries = 0; program_retries < 100; program_retries++) {
3081 e_dbg("Retrying Byte %2.2X at offset %u\n", byte, offset);
3083 ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
3087 if (program_retries == 100)
3088 return -E1000_ERR_NVM;
3094 * e1000_erase_flash_bank_ich8lan - Erase a bank (4k) from NVM
3095 * @hw: pointer to the HW structure
3096 * @bank: 0 for first bank, 1 for second bank, etc.
3098 * Erases the bank specified. Each bank is a 4k block. Banks are 0 based.
3099 * bank N is 4096 * N + flash_reg_addr.
3101 static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank)
3103 struct e1000_nvm_info *nvm = &hw->nvm;
3104 union ich8_hws_flash_status hsfsts;
3105 union ich8_hws_flash_ctrl hsflctl;
3106 u32 flash_linear_addr;
3107 /* bank size is in 16bit words - adjust to bytes */
3108 u32 flash_bank_size = nvm->flash_bank_size * 2;
3111 s32 j, iteration, sector_size;
3113 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
3115 /* Determine HW Sector size: Read BERASE bits of hw flash status
3117 * 00: The Hw sector is 256 bytes, hence we need to erase 16
3118 * consecutive sectors. The start index for the nth Hw sector
3119 * can be calculated as = bank * 4096 + n * 256
3120 * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector.
3121 * The start index for the nth Hw sector can be calculated
3123 * 10: The Hw sector is 8K bytes, nth sector = bank * 8192
3124 * (ich9 only, otherwise error condition)
3125 * 11: The Hw sector is 64K bytes, nth sector = bank * 65536
3127 switch (hsfsts.hsf_status.berasesz) {
3129 /* Hw sector size 256 */
3130 sector_size = ICH_FLASH_SEG_SIZE_256;
3131 iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_256;
3134 sector_size = ICH_FLASH_SEG_SIZE_4K;
3138 sector_size = ICH_FLASH_SEG_SIZE_8K;
3142 sector_size = ICH_FLASH_SEG_SIZE_64K;
3146 return -E1000_ERR_NVM;
3149 /* Start with the base address, then add the sector offset. */
3150 flash_linear_addr = hw->nvm.flash_base_addr;
3151 flash_linear_addr += (bank) ? flash_bank_size : 0;
3153 for (j = 0; j < iteration; j++) {
3155 u32 timeout = ICH_FLASH_ERASE_COMMAND_TIMEOUT;
3158 ret_val = e1000_flash_cycle_init_ich8lan(hw);
3162 /* Write a value 11 (block Erase) in Flash
3163 * Cycle field in hw flash control
3165 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
3166 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE;
3167 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
3169 /* Write the last 24 bits of an index within the
3170 * block into Flash Linear address field in Flash
3173 flash_linear_addr += (j * sector_size);
3174 ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
3176 ret_val = e1000_flash_cycle_ich8lan(hw, timeout);
3180 /* Check if FCERR is set to 1. If 1,
3181 * clear it and try the whole sequence
3182 * a few more times else Done
3184 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
3185 if (hsfsts.hsf_status.flcerr)
3186 /* repeat for some time before giving up */
3188 else if (!hsfsts.hsf_status.flcdone)
3190 } while (++count < ICH_FLASH_CYCLE_REPEAT_COUNT);
3197 * e1000_valid_led_default_ich8lan - Set the default LED settings
3198 * @hw: pointer to the HW structure
3199 * @data: Pointer to the LED settings
3201 * Reads the LED default settings from the NVM to data. If the NVM LED
3202 * settings is all 0's or F's, set the LED default to a valid LED default
3205 static s32 e1000_valid_led_default_ich8lan(struct e1000_hw *hw, u16 *data)
3209 ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
3211 e_dbg("NVM Read Error\n");
3215 if (*data == ID_LED_RESERVED_0000 ||
3216 *data == ID_LED_RESERVED_FFFF)
3217 *data = ID_LED_DEFAULT_ICH8LAN;
3223 * e1000_id_led_init_pchlan - store LED configurations
3224 * @hw: pointer to the HW structure
3226 * PCH does not control LEDs via the LEDCTL register, rather it uses
3227 * the PHY LED configuration register.
3229 * PCH also does not have an "always on" or "always off" mode which
3230 * complicates the ID feature. Instead of using the "on" mode to indicate
3231 * in ledctl_mode2 the LEDs to use for ID (see e1000e_id_led_init_generic()),
3232 * use "link_up" mode. The LEDs will still ID on request if there is no
3233 * link based on logic in e1000_led_[on|off]_pchlan().
3235 static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw)
3237 struct e1000_mac_info *mac = &hw->mac;
3239 const u32 ledctl_on = E1000_LEDCTL_MODE_LINK_UP;
3240 const u32 ledctl_off = E1000_LEDCTL_MODE_LINK_UP | E1000_PHY_LED0_IVRT;
3241 u16 data, i, temp, shift;
3243 /* Get default ID LED modes */
3244 ret_val = hw->nvm.ops.valid_led_default(hw, &data);
3248 mac->ledctl_default = er32(LEDCTL);
3249 mac->ledctl_mode1 = mac->ledctl_default;
3250 mac->ledctl_mode2 = mac->ledctl_default;
3252 for (i = 0; i < 4; i++) {
3253 temp = (data >> (i << 2)) & E1000_LEDCTL_LED0_MODE_MASK;
3256 case ID_LED_ON1_DEF2:
3257 case ID_LED_ON1_ON2:
3258 case ID_LED_ON1_OFF2:
3259 mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
3260 mac->ledctl_mode1 |= (ledctl_on << shift);
3262 case ID_LED_OFF1_DEF2:
3263 case ID_LED_OFF1_ON2:
3264 case ID_LED_OFF1_OFF2:
3265 mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
3266 mac->ledctl_mode1 |= (ledctl_off << shift);
3273 case ID_LED_DEF1_ON2:
3274 case ID_LED_ON1_ON2:
3275 case ID_LED_OFF1_ON2:
3276 mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
3277 mac->ledctl_mode2 |= (ledctl_on << shift);
3279 case ID_LED_DEF1_OFF2:
3280 case ID_LED_ON1_OFF2:
3281 case ID_LED_OFF1_OFF2:
3282 mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
3283 mac->ledctl_mode2 |= (ledctl_off << shift);
3295 * e1000_get_bus_info_ich8lan - Get/Set the bus type and width
3296 * @hw: pointer to the HW structure
3298 * ICH8 use the PCI Express bus, but does not contain a PCI Express Capability
3299 * register, so the the bus width is hard coded.
3301 static s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw)
3303 struct e1000_bus_info *bus = &hw->bus;
3306 ret_val = e1000e_get_bus_info_pcie(hw);
3308 /* ICH devices are "PCI Express"-ish. They have
3309 * a configuration space, but do not contain
3310 * PCI Express Capability registers, so bus width
3311 * must be hardcoded.
3313 if (bus->width == e1000_bus_width_unknown)
3314 bus->width = e1000_bus_width_pcie_x1;
3320 * e1000_reset_hw_ich8lan - Reset the hardware
3321 * @hw: pointer to the HW structure
3323 * Does a full reset of the hardware which includes a reset of the PHY and
3326 static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
3328 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3333 /* Prevent the PCI-E bus from sticking if there is no TLP connection
3334 * on the last TLP read/write transaction when MAC is reset.
3336 ret_val = e1000e_disable_pcie_master(hw);
3338 e_dbg("PCI-E Master disable polling has failed.\n");
3340 e_dbg("Masking off all interrupts\n");
3341 ew32(IMC, 0xffffffff);
3343 /* Disable the Transmit and Receive units. Then delay to allow
3344 * any pending transactions to complete before we hit the MAC
3345 * with the global reset.
3348 ew32(TCTL, E1000_TCTL_PSP);
3351 usleep_range(10000, 20000);
3353 /* Workaround for ICH8 bit corruption issue in FIFO memory */
3354 if (hw->mac.type == e1000_ich8lan) {
3355 /* Set Tx and Rx buffer allocation to 8k apiece. */
3356 ew32(PBA, E1000_PBA_8K);
3357 /* Set Packet Buffer Size to 16k. */
3358 ew32(PBS, E1000_PBS_16K);
3361 if (hw->mac.type == e1000_pchlan) {
3362 /* Save the NVM K1 bit setting */
3363 ret_val = e1000_read_nvm(hw, E1000_NVM_K1_CONFIG, 1, &kum_cfg);
3367 if (kum_cfg & E1000_NVM_K1_ENABLE)
3368 dev_spec->nvm_k1_enabled = true;
3370 dev_spec->nvm_k1_enabled = false;
3375 if (!hw->phy.ops.check_reset_block(hw)) {
3376 /* Full-chip reset requires MAC and PHY reset at the same
3377 * time to make sure the interface between MAC and the
3378 * external PHY is reset.
3380 ctrl |= E1000_CTRL_PHY_RST;
3382 /* Gate automatic PHY configuration by hardware on
3385 if ((hw->mac.type == e1000_pch2lan) &&
3386 !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
3387 e1000_gate_hw_phy_config_ich8lan(hw, true);
3389 ret_val = e1000_acquire_swflag_ich8lan(hw);
3390 e_dbg("Issuing a global reset to ich8lan\n");
3391 ew32(CTRL, (ctrl | E1000_CTRL_RST));
3392 /* cannot issue a flush here because it hangs the hardware */
3395 /* Set Phy Config Counter to 50msec */
3396 if (hw->mac.type == e1000_pch2lan) {
3397 reg = er32(FEXTNVM3);
3398 reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK;
3399 reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC;
3400 ew32(FEXTNVM3, reg);
3404 clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state);
3406 if (ctrl & E1000_CTRL_PHY_RST) {
3407 ret_val = hw->phy.ops.get_cfg_done(hw);
3411 ret_val = e1000_post_phy_reset_ich8lan(hw);
3416 /* For PCH, this write will make sure that any noise
3417 * will be detected as a CRC error and be dropped rather than show up
3418 * as a bad packet to the DMA engine.
3420 if (hw->mac.type == e1000_pchlan)
3421 ew32(CRC_OFFSET, 0x65656565);
3423 ew32(IMC, 0xffffffff);
3426 reg = er32(KABGTXD);
3427 reg |= E1000_KABGTXD_BGSQLBIAS;
3434 * e1000_init_hw_ich8lan - Initialize the hardware
3435 * @hw: pointer to the HW structure
3437 * Prepares the hardware for transmit and receive by doing the following:
3438 * - initialize hardware bits
3439 * - initialize LED identification
3440 * - setup receive address registers
3441 * - setup flow control
3442 * - setup transmit descriptors
3443 * - clear statistics
3445 static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw)
3447 struct e1000_mac_info *mac = &hw->mac;
3448 u32 ctrl_ext, txdctl, snoop;
3452 e1000_initialize_hw_bits_ich8lan(hw);
3454 /* Initialize identification LED */
3455 ret_val = mac->ops.id_led_init(hw);
3457 e_dbg("Error initializing identification LED\n");
3458 /* This is not fatal and we should not stop init due to this */
3460 /* Setup the receive address. */
3461 e1000e_init_rx_addrs(hw, mac->rar_entry_count);
3463 /* Zero out the Multicast HASH table */
3464 e_dbg("Zeroing the MTA\n");
3465 for (i = 0; i < mac->mta_reg_count; i++)
3466 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
3468 /* The 82578 Rx buffer will stall if wakeup is enabled in host and
3469 * the ME. Disable wakeup by clearing the host wakeup bit.
3470 * Reset the phy after disabling host wakeup to reset the Rx buffer.
3472 if (hw->phy.type == e1000_phy_82578) {
3473 e1e_rphy(hw, BM_PORT_GEN_CFG, &i);
3474 i &= ~BM_WUC_HOST_WU_BIT;
3475 e1e_wphy(hw, BM_PORT_GEN_CFG, i);
3476 ret_val = e1000_phy_hw_reset_ich8lan(hw);
3481 /* Setup link and flow control */
3482 ret_val = mac->ops.setup_link(hw);
3484 /* Set the transmit descriptor write-back policy for both queues */
3485 txdctl = er32(TXDCTL(0));
3486 txdctl = ((txdctl & ~E1000_TXDCTL_WTHRESH) |
3487 E1000_TXDCTL_FULL_TX_DESC_WB);
3488 txdctl = ((txdctl & ~E1000_TXDCTL_PTHRESH) |
3489 E1000_TXDCTL_MAX_TX_DESC_PREFETCH);
3490 ew32(TXDCTL(0), txdctl);
3491 txdctl = er32(TXDCTL(1));
3492 txdctl = ((txdctl & ~E1000_TXDCTL_WTHRESH) |
3493 E1000_TXDCTL_FULL_TX_DESC_WB);
3494 txdctl = ((txdctl & ~E1000_TXDCTL_PTHRESH) |
3495 E1000_TXDCTL_MAX_TX_DESC_PREFETCH);
3496 ew32(TXDCTL(1), txdctl);
3498 /* ICH8 has opposite polarity of no_snoop bits.
3499 * By default, we should use snoop behavior.
3501 if (mac->type == e1000_ich8lan)
3502 snoop = PCIE_ICH8_SNOOP_ALL;
3504 snoop = (u32)~(PCIE_NO_SNOOP_ALL);
3505 e1000e_set_pcie_no_snoop(hw, snoop);
3507 ctrl_ext = er32(CTRL_EXT);
3508 ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
3509 ew32(CTRL_EXT, ctrl_ext);
3511 /* Clear all of the statistics registers (clear on read). It is
3512 * important that we do this after we have tried to establish link
3513 * because the symbol error count will increment wildly if there
3516 e1000_clear_hw_cntrs_ich8lan(hw);
3521 * e1000_initialize_hw_bits_ich8lan - Initialize required hardware bits
3522 * @hw: pointer to the HW structure
3524 * Sets/Clears required hardware bits necessary for correctly setting up the
3525 * hardware for transmit and receive.
3527 static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw)
3531 /* Extended Device Control */
3532 reg = er32(CTRL_EXT);
3534 /* Enable PHY low-power state when MAC is at D3 w/o WoL */
3535 if (hw->mac.type >= e1000_pchlan)
3536 reg |= E1000_CTRL_EXT_PHYPDEN;
3537 ew32(CTRL_EXT, reg);
3539 /* Transmit Descriptor Control 0 */
3540 reg = er32(TXDCTL(0));
3542 ew32(TXDCTL(0), reg);
3544 /* Transmit Descriptor Control 1 */
3545 reg = er32(TXDCTL(1));
3547 ew32(TXDCTL(1), reg);
3549 /* Transmit Arbitration Control 0 */
3550 reg = er32(TARC(0));
3551 if (hw->mac.type == e1000_ich8lan)
3552 reg |= (1 << 28) | (1 << 29);
3553 reg |= (1 << 23) | (1 << 24) | (1 << 26) | (1 << 27);
3556 /* Transmit Arbitration Control 1 */
3557 reg = er32(TARC(1));
3558 if (er32(TCTL) & E1000_TCTL_MULR)
3562 reg |= (1 << 24) | (1 << 26) | (1 << 30);
3566 if (hw->mac.type == e1000_ich8lan) {
3572 /* work-around descriptor data corruption issue during nfs v2 udp
3573 * traffic, just disable the nfs filtering capability
3576 reg |= (E1000_RFCTL_NFSW_DIS | E1000_RFCTL_NFSR_DIS);
3578 /* Disable IPv6 extension header parsing because some malformed
3579 * IPv6 headers can hang the Rx.
3581 if (hw->mac.type == e1000_ich8lan)
3582 reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS);
3585 /* Enable ECC on Lynxpoint */
3586 if (hw->mac.type == e1000_pch_lpt) {
3587 reg = er32(PBECCSTS);
3588 reg |= E1000_PBECCSTS_ECC_ENABLE;
3589 ew32(PBECCSTS, reg);
3592 reg |= E1000_CTRL_MEHE;
3598 * e1000_setup_link_ich8lan - Setup flow control and link settings
3599 * @hw: pointer to the HW structure
3601 * Determines which flow control settings to use, then configures flow
3602 * control. Calls the appropriate media-specific link configuration
3603 * function. Assuming the adapter has a valid link partner, a valid link
3604 * should be established. Assumes the hardware has previously been reset
3605 * and the transmitter and receiver are not enabled.
3607 static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw)
3611 if (hw->phy.ops.check_reset_block(hw))
3614 /* ICH parts do not have a word in the NVM to determine
3615 * the default flow control setting, so we explicitly
3618 if (hw->fc.requested_mode == e1000_fc_default) {
3619 /* Workaround h/w hang when Tx flow control enabled */
3620 if (hw->mac.type == e1000_pchlan)
3621 hw->fc.requested_mode = e1000_fc_rx_pause;
3623 hw->fc.requested_mode = e1000_fc_full;
3626 /* Save off the requested flow control mode for use later. Depending
3627 * on the link partner's capabilities, we may or may not use this mode.
3629 hw->fc.current_mode = hw->fc.requested_mode;
3631 e_dbg("After fix-ups FlowControl is now = %x\n", hw->fc.current_mode);
3633 /* Continue to configure the copper link. */
3634 ret_val = hw->mac.ops.setup_physical_interface(hw);
3638 ew32(FCTTV, hw->fc.pause_time);
3639 if ((hw->phy.type == e1000_phy_82578) ||
3640 (hw->phy.type == e1000_phy_82579) ||
3641 (hw->phy.type == e1000_phy_i217) ||
3642 (hw->phy.type == e1000_phy_82577)) {
3643 ew32(FCRTV_PCH, hw->fc.refresh_time);
3645 ret_val = e1e_wphy(hw, PHY_REG(BM_PORT_CTRL_PAGE, 27),
3651 return e1000e_set_fc_watermarks(hw);
3655 * e1000_setup_copper_link_ich8lan - Configure MAC/PHY interface
3656 * @hw: pointer to the HW structure
3658 * Configures the kumeran interface to the PHY to wait the appropriate time
3659 * when polling the PHY, then call the generic setup_copper_link to finish
3660 * configuring the copper link.
3662 static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw)
3669 ctrl |= E1000_CTRL_SLU;
3670 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
3673 /* Set the mac to wait the maximum time between each iteration
3674 * and increase the max iterations when polling the phy;
3675 * this fixes erroneous timeouts at 10Mbps.
3677 ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_TIMEOUTS, 0xFFFF);
3680 ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
3685 ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
3690 switch (hw->phy.type) {
3691 case e1000_phy_igp_3:
3692 ret_val = e1000e_copper_link_setup_igp(hw);
3697 case e1000_phy_82578:
3698 ret_val = e1000e_copper_link_setup_m88(hw);
3702 case e1000_phy_82577:
3703 case e1000_phy_82579:
3704 case e1000_phy_i217:
3705 ret_val = e1000_copper_link_setup_82577(hw);
3710 ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, ®_data);
3714 reg_data &= ~IFE_PMC_AUTO_MDIX;
3716 switch (hw->phy.mdix) {
3718 reg_data &= ~IFE_PMC_FORCE_MDIX;
3721 reg_data |= IFE_PMC_FORCE_MDIX;
3725 reg_data |= IFE_PMC_AUTO_MDIX;
3728 ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, reg_data);
3736 return e1000e_setup_copper_link(hw);
3740 * e1000_get_link_up_info_ich8lan - Get current link speed and duplex
3741 * @hw: pointer to the HW structure
3742 * @speed: pointer to store current link speed
3743 * @duplex: pointer to store the current link duplex
3745 * Calls the generic get_speed_and_duplex to retrieve the current link
3746 * information and then calls the Kumeran lock loss workaround for links at
3749 static s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw, u16 *speed,
3754 ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex);
3758 if ((hw->mac.type == e1000_ich8lan) &&
3759 (hw->phy.type == e1000_phy_igp_3) &&
3760 (*speed == SPEED_1000)) {
3761 ret_val = e1000_kmrn_lock_loss_workaround_ich8lan(hw);
3768 * e1000_kmrn_lock_loss_workaround_ich8lan - Kumeran workaround
3769 * @hw: pointer to the HW structure
3771 * Work-around for 82566 Kumeran PCS lock loss:
3772 * On link status change (i.e. PCI reset, speed change) and link is up and
3774 * 0) if workaround is optionally disabled do nothing
3775 * 1) wait 1ms for Kumeran link to come up
3776 * 2) check Kumeran Diagnostic register PCS lock loss bit
3777 * 3) if not set the link is locked (all is good), otherwise...
3779 * 5) repeat up to 10 times
3780 * Note: this is only called for IGP3 copper when speed is 1gb.
3782 static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw)
3784 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3790 if (!dev_spec->kmrn_lock_loss_workaround_enabled)
3793 /* Make sure link is up before proceeding. If not just return.
3794 * Attempting this while link is negotiating fouled up link
3797 ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
3801 for (i = 0; i < 10; i++) {
3802 /* read once to clear */
3803 ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data);
3806 /* and again to get new status */
3807 ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data);
3811 /* check for PCS lock */
3812 if (!(data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS))
3815 /* Issue PHY reset */
3816 e1000_phy_hw_reset(hw);
3819 /* Disable GigE link negotiation */
3820 phy_ctrl = er32(PHY_CTRL);
3821 phy_ctrl |= (E1000_PHY_CTRL_GBE_DISABLE |
3822 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
3823 ew32(PHY_CTRL, phy_ctrl);
3825 /* Call gig speed drop workaround on Gig disable before accessing
3828 e1000e_gig_downshift_workaround_ich8lan(hw);
3830 /* unable to acquire PCS lock */
3831 return -E1000_ERR_PHY;
3835 * e1000e_set_kmrn_lock_loss_workaround_ich8lan - Set Kumeran workaround state
3836 * @hw: pointer to the HW structure
3837 * @state: boolean value used to set the current Kumeran workaround state
3839 * If ICH8, set the current Kumeran workaround state (enabled - true
3840 * /disabled - false).
3842 void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
3845 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3847 if (hw->mac.type != e1000_ich8lan) {
3848 e_dbg("Workaround applies to ICH8 only.\n");
3852 dev_spec->kmrn_lock_loss_workaround_enabled = state;
3856 * e1000_ipg3_phy_powerdown_workaround_ich8lan - Power down workaround on D3
3857 * @hw: pointer to the HW structure
3859 * Workaround for 82566 power-down on D3 entry:
3860 * 1) disable gigabit link
3861 * 2) write VR power-down enable
3863 * Continue if successful, else issue LCD reset and repeat
3865 void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw)
3871 if (hw->phy.type != e1000_phy_igp_3)
3874 /* Try the workaround twice (if needed) */
3877 reg = er32(PHY_CTRL);
3878 reg |= (E1000_PHY_CTRL_GBE_DISABLE |
3879 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
3880 ew32(PHY_CTRL, reg);
3882 /* Call gig speed drop workaround on Gig disable before
3883 * accessing any PHY registers
3885 if (hw->mac.type == e1000_ich8lan)
3886 e1000e_gig_downshift_workaround_ich8lan(hw);
3888 /* Write VR power-down enable */
3889 e1e_rphy(hw, IGP3_VR_CTRL, &data);
3890 data &= ~IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
3891 e1e_wphy(hw, IGP3_VR_CTRL, data | IGP3_VR_CTRL_MODE_SHUTDOWN);
3893 /* Read it back and test */
3894 e1e_rphy(hw, IGP3_VR_CTRL, &data);
3895 data &= IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
3896 if ((data == IGP3_VR_CTRL_MODE_SHUTDOWN) || retry)
3899 /* Issue PHY reset and repeat at most one more time */
3901 ew32(CTRL, reg | E1000_CTRL_PHY_RST);
3907 * e1000e_gig_downshift_workaround_ich8lan - WoL from S5 stops working
3908 * @hw: pointer to the HW structure
3910 * Steps to take when dropping from 1Gb/s (eg. link cable removal (LSC),
3911 * LPLU, Gig disable, MDIC PHY reset):
3912 * 1) Set Kumeran Near-end loopback
3913 * 2) Clear Kumeran Near-end loopback
3914 * Should only be called for ICH8[m] devices with any 1G Phy.
3916 void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
3921 if ((hw->mac.type != e1000_ich8lan) || (hw->phy.type == e1000_phy_ife))
3924 ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
3928 reg_data |= E1000_KMRNCTRLSTA_DIAG_NELPBK;
3929 ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
3933 reg_data &= ~E1000_KMRNCTRLSTA_DIAG_NELPBK;
3934 e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET, reg_data);
3938 * e1000_suspend_workarounds_ich8lan - workarounds needed during S0->Sx
3939 * @hw: pointer to the HW structure
3941 * During S0 to Sx transition, it is possible the link remains at gig
3942 * instead of negotiating to a lower speed. Before going to Sx, set
3943 * 'Gig Disable' to force link speed negotiation to a lower speed based on
3944 * the LPLU setting in the NVM or custom setting. For PCH and newer parts,
3945 * the OEM bits PHY register (LED, GbE disable and LPLU configurations) also
3946 * needs to be written.
3947 * Parts that support (and are linked to a partner which support) EEE in
3948 * 100Mbps should disable LPLU since 100Mbps w/ EEE requires less power
3949 * than 10Mbps w/o EEE.
3951 void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw)
3953 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3957 phy_ctrl = er32(PHY_CTRL);
3958 phy_ctrl |= E1000_PHY_CTRL_GBE_DISABLE;
3959 if (hw->phy.type == e1000_phy_i217) {
3962 ret_val = hw->phy.ops.acquire(hw);
3966 if (!dev_spec->eee_disable) {
3970 e1000_read_emi_reg_locked(hw,
3971 I217_EEE_ADVERTISEMENT,
3976 /* Disable LPLU if both link partners support 100BaseT
3977 * EEE and 100Full is advertised on both ends of the
3980 if ((eee_advert & I82579_EEE_100_SUPPORTED) &&
3981 (dev_spec->eee_lp_ability &
3982 I82579_EEE_100_SUPPORTED) &&
3983 (hw->phy.autoneg_advertised & ADVERTISE_100_FULL))
3984 phy_ctrl &= ~(E1000_PHY_CTRL_D0A_LPLU |
3985 E1000_PHY_CTRL_NOND0A_LPLU);
3988 /* For i217 Intel Rapid Start Technology support,
3989 * when the system is going into Sx and no manageability engine
3990 * is present, the driver must configure proxy to reset only on
3991 * power good. LPI (Low Power Idle) state must also reset only
3992 * on power good, as well as the MTA (Multicast table array).
3993 * The SMBus release must also be disabled on LCD reset.
3995 if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
3996 /* Enable proxy to reset only on power good. */
3997 e1e_rphy_locked(hw, I217_PROXY_CTRL, &phy_reg);
3998 phy_reg |= I217_PROXY_CTRL_AUTO_DISABLE;
3999 e1e_wphy_locked(hw, I217_PROXY_CTRL, phy_reg);
4001 /* Set bit enable LPI (EEE) to reset only on
4004 e1e_rphy_locked(hw, I217_SxCTRL, &phy_reg);
4005 phy_reg |= I217_SxCTRL_ENABLE_LPI_RESET;
4006 e1e_wphy_locked(hw, I217_SxCTRL, phy_reg);
4008 /* Disable the SMB release on LCD reset. */
4009 e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg);
4010 phy_reg &= ~I217_MEMPWR_DISABLE_SMB_RELEASE;
4011 e1e_wphy_locked(hw, I217_MEMPWR, phy_reg);
4014 /* Enable MTA to reset for Intel Rapid Start Technology
4017 e1e_rphy_locked(hw, I217_CGFREG, &phy_reg);
4018 phy_reg |= I217_CGFREG_ENABLE_MTA_RESET;
4019 e1e_wphy_locked(hw, I217_CGFREG, phy_reg);
4022 hw->phy.ops.release(hw);
4025 ew32(PHY_CTRL, phy_ctrl);
4027 if (hw->mac.type == e1000_ich8lan)
4028 e1000e_gig_downshift_workaround_ich8lan(hw);
4030 if (hw->mac.type >= e1000_pchlan) {
4031 e1000_oem_bits_config_ich8lan(hw, false);
4033 /* Reset PHY to activate OEM bits on 82577/8 */
4034 if (hw->mac.type == e1000_pchlan)
4035 e1000e_phy_hw_reset_generic(hw);
4037 ret_val = hw->phy.ops.acquire(hw);
4040 e1000_write_smbus_addr(hw);
4041 hw->phy.ops.release(hw);
4046 * e1000_resume_workarounds_pchlan - workarounds needed during Sx->S0
4047 * @hw: pointer to the HW structure
4049 * During Sx to S0 transitions on non-managed devices or managed devices
4050 * on which PHY resets are not blocked, if the PHY registers cannot be
4051 * accessed properly by the s/w toggle the LANPHYPC value to power cycle
4053 * On i217, setup Intel Rapid Start Technology.
4055 void e1000_resume_workarounds_pchlan(struct e1000_hw *hw)
4059 if (hw->mac.type < e1000_pch2lan)
4062 ret_val = e1000_init_phy_workarounds_pchlan(hw);
4064 e_dbg("Failed to init PHY flow ret_val=%d\n", ret_val);
4068 /* For i217 Intel Rapid Start Technology support when the system
4069 * is transitioning from Sx and no manageability engine is present
4070 * configure SMBus to restore on reset, disable proxy, and enable
4071 * the reset on MTA (Multicast table array).
4073 if (hw->phy.type == e1000_phy_i217) {
4076 ret_val = hw->phy.ops.acquire(hw);
4078 e_dbg("Failed to setup iRST\n");
4082 if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
4083 /* Restore clear on SMB if no manageability engine
4086 ret_val = e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg);
4089 phy_reg |= I217_MEMPWR_DISABLE_SMB_RELEASE;
4090 e1e_wphy_locked(hw, I217_MEMPWR, phy_reg);
4093 e1e_wphy_locked(hw, I217_PROXY_CTRL, 0);
4095 /* Enable reset on MTA */
4096 ret_val = e1e_rphy_locked(hw, I217_CGFREG, &phy_reg);
4099 phy_reg &= ~I217_CGFREG_ENABLE_MTA_RESET;
4100 e1e_wphy_locked(hw, I217_CGFREG, phy_reg);
4103 e_dbg("Error %d in resume workarounds\n", ret_val);
4104 hw->phy.ops.release(hw);
4109 * e1000_cleanup_led_ich8lan - Restore the default LED operation
4110 * @hw: pointer to the HW structure
4112 * Return the LED back to the default configuration.
4114 static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw)
4116 if (hw->phy.type == e1000_phy_ife)
4117 return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
4119 ew32(LEDCTL, hw->mac.ledctl_default);
4124 * e1000_led_on_ich8lan - Turn LEDs on
4125 * @hw: pointer to the HW structure
4129 static s32 e1000_led_on_ich8lan(struct e1000_hw *hw)
4131 if (hw->phy.type == e1000_phy_ife)
4132 return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED,
4133 (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON));
4135 ew32(LEDCTL, hw->mac.ledctl_mode2);
4140 * e1000_led_off_ich8lan - Turn LEDs off
4141 * @hw: pointer to the HW structure
4143 * Turn off the LEDs.
4145 static s32 e1000_led_off_ich8lan(struct e1000_hw *hw)
4147 if (hw->phy.type == e1000_phy_ife)
4148 return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED,
4149 (IFE_PSCL_PROBE_MODE |
4150 IFE_PSCL_PROBE_LEDS_OFF));
4152 ew32(LEDCTL, hw->mac.ledctl_mode1);
4157 * e1000_setup_led_pchlan - Configures SW controllable LED
4158 * @hw: pointer to the HW structure
4160 * This prepares the SW controllable LED for use.
4162 static s32 e1000_setup_led_pchlan(struct e1000_hw *hw)
4164 return e1e_wphy(hw, HV_LED_CONFIG, (u16)hw->mac.ledctl_mode1);
4168 * e1000_cleanup_led_pchlan - Restore the default LED operation
4169 * @hw: pointer to the HW structure
4171 * Return the LED back to the default configuration.
4173 static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw)
4175 return e1e_wphy(hw, HV_LED_CONFIG, (u16)hw->mac.ledctl_default);
4179 * e1000_led_on_pchlan - Turn LEDs on
4180 * @hw: pointer to the HW structure
4184 static s32 e1000_led_on_pchlan(struct e1000_hw *hw)
4186 u16 data = (u16)hw->mac.ledctl_mode2;
4189 /* If no link, then turn LED on by setting the invert bit
4190 * for each LED that's mode is "link_up" in ledctl_mode2.
4192 if (!(er32(STATUS) & E1000_STATUS_LU)) {
4193 for (i = 0; i < 3; i++) {
4194 led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
4195 if ((led & E1000_PHY_LED0_MODE_MASK) !=
4196 E1000_LEDCTL_MODE_LINK_UP)
4198 if (led & E1000_PHY_LED0_IVRT)
4199 data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
4201 data |= (E1000_PHY_LED0_IVRT << (i * 5));
4205 return e1e_wphy(hw, HV_LED_CONFIG, data);
4209 * e1000_led_off_pchlan - Turn LEDs off
4210 * @hw: pointer to the HW structure
4212 * Turn off the LEDs.
4214 static s32 e1000_led_off_pchlan(struct e1000_hw *hw)
4216 u16 data = (u16)hw->mac.ledctl_mode1;
4219 /* If no link, then turn LED off by clearing the invert bit
4220 * for each LED that's mode is "link_up" in ledctl_mode1.
4222 if (!(er32(STATUS) & E1000_STATUS_LU)) {
4223 for (i = 0; i < 3; i++) {
4224 led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
4225 if ((led & E1000_PHY_LED0_MODE_MASK) !=
4226 E1000_LEDCTL_MODE_LINK_UP)
4228 if (led & E1000_PHY_LED0_IVRT)
4229 data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
4231 data |= (E1000_PHY_LED0_IVRT << (i * 5));
4235 return e1e_wphy(hw, HV_LED_CONFIG, data);
4239 * e1000_get_cfg_done_ich8lan - Read config done bit after Full or PHY reset
4240 * @hw: pointer to the HW structure
4242 * Read appropriate register for the config done bit for completion status
4243 * and configure the PHY through s/w for EEPROM-less parts.
4245 * NOTE: some silicon which is EEPROM-less will fail trying to read the
4246 * config done bit, so only an error is logged and continues. If we were
4247 * to return with error, EEPROM-less silicon would not be able to be reset
4250 static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw)
4256 e1000e_get_cfg_done_generic(hw);
4258 /* Wait for indication from h/w that it has completed basic config */
4259 if (hw->mac.type >= e1000_ich10lan) {
4260 e1000_lan_init_done_ich8lan(hw);
4262 ret_val = e1000e_get_auto_rd_done(hw);
4264 /* When auto config read does not complete, do not
4265 * return with an error. This can happen in situations
4266 * where there is no eeprom and prevents getting link.
4268 e_dbg("Auto Read Done did not complete\n");
4273 /* Clear PHY Reset Asserted bit */
4274 status = er32(STATUS);
4275 if (status & E1000_STATUS_PHYRA)
4276 ew32(STATUS, status & ~E1000_STATUS_PHYRA);
4278 e_dbg("PHY Reset Asserted not set - needs delay\n");
4280 /* If EEPROM is not marked present, init the IGP 3 PHY manually */
4281 if (hw->mac.type <= e1000_ich9lan) {
4282 if (!(er32(EECD) & E1000_EECD_PRES) &&
4283 (hw->phy.type == e1000_phy_igp_3)) {
4284 e1000e_phy_init_script_igp3(hw);
4287 if (e1000_valid_nvm_bank_detect_ich8lan(hw, &bank)) {
4288 /* Maybe we should do a basic PHY config */
4289 e_dbg("EEPROM not present\n");
4290 ret_val = -E1000_ERR_CONFIG;
4298 * e1000_power_down_phy_copper_ich8lan - Remove link during PHY power down
4299 * @hw: pointer to the HW structure
4301 * In the case of a PHY power down to save power, or to turn off link during a
4302 * driver unload, or wake on lan is not enabled, remove the link.
4304 static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw)
4306 /* If the management interface is not enabled, then power down */
4307 if (!(hw->mac.ops.check_mng_mode(hw) ||
4308 hw->phy.ops.check_reset_block(hw)))
4309 e1000_power_down_phy_copper(hw);
4313 * e1000_clear_hw_cntrs_ich8lan - Clear statistical counters
4314 * @hw: pointer to the HW structure
4316 * Clears hardware counters specific to the silicon family and calls
4317 * clear_hw_cntrs_generic to clear all general purpose counters.
4319 static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw)
4324 e1000e_clear_hw_cntrs_base(hw);
4340 /* Clear PHY statistics registers */
4341 if ((hw->phy.type == e1000_phy_82578) ||
4342 (hw->phy.type == e1000_phy_82579) ||
4343 (hw->phy.type == e1000_phy_i217) ||
4344 (hw->phy.type == e1000_phy_82577)) {
4345 ret_val = hw->phy.ops.acquire(hw);
4348 ret_val = hw->phy.ops.set_page(hw,
4349 HV_STATS_PAGE << IGP_PAGE_SHIFT);
4352 hw->phy.ops.read_reg_page(hw, HV_SCC_UPPER, &phy_data);
4353 hw->phy.ops.read_reg_page(hw, HV_SCC_LOWER, &phy_data);
4354 hw->phy.ops.read_reg_page(hw, HV_ECOL_UPPER, &phy_data);
4355 hw->phy.ops.read_reg_page(hw, HV_ECOL_LOWER, &phy_data);
4356 hw->phy.ops.read_reg_page(hw, HV_MCC_UPPER, &phy_data);
4357 hw->phy.ops.read_reg_page(hw, HV_MCC_LOWER, &phy_data);
4358 hw->phy.ops.read_reg_page(hw, HV_LATECOL_UPPER, &phy_data);
4359 hw->phy.ops.read_reg_page(hw, HV_LATECOL_LOWER, &phy_data);
4360 hw->phy.ops.read_reg_page(hw, HV_COLC_UPPER, &phy_data);
4361 hw->phy.ops.read_reg_page(hw, HV_COLC_LOWER, &phy_data);
4362 hw->phy.ops.read_reg_page(hw, HV_DC_UPPER, &phy_data);
4363 hw->phy.ops.read_reg_page(hw, HV_DC_LOWER, &phy_data);
4364 hw->phy.ops.read_reg_page(hw, HV_TNCRS_UPPER, &phy_data);
4365 hw->phy.ops.read_reg_page(hw, HV_TNCRS_LOWER, &phy_data);
4367 hw->phy.ops.release(hw);
4371 static const struct e1000_mac_operations ich8_mac_ops = {
4372 /* check_mng_mode dependent on mac type */
4373 .check_for_link = e1000_check_for_copper_link_ich8lan,
4374 /* cleanup_led dependent on mac type */
4375 .clear_hw_cntrs = e1000_clear_hw_cntrs_ich8lan,
4376 .get_bus_info = e1000_get_bus_info_ich8lan,
4377 .set_lan_id = e1000_set_lan_id_single_port,
4378 .get_link_up_info = e1000_get_link_up_info_ich8lan,
4379 /* led_on dependent on mac type */
4380 /* led_off dependent on mac type */
4381 .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
4382 .reset_hw = e1000_reset_hw_ich8lan,
4383 .init_hw = e1000_init_hw_ich8lan,
4384 .setup_link = e1000_setup_link_ich8lan,
4385 .setup_physical_interface = e1000_setup_copper_link_ich8lan,
4386 /* id_led_init dependent on mac type */
4387 .config_collision_dist = e1000e_config_collision_dist_generic,
4388 .rar_set = e1000e_rar_set_generic,
4391 static const struct e1000_phy_operations ich8_phy_ops = {
4392 .acquire = e1000_acquire_swflag_ich8lan,
4393 .check_reset_block = e1000_check_reset_block_ich8lan,
4395 .get_cfg_done = e1000_get_cfg_done_ich8lan,
4396 .get_cable_length = e1000e_get_cable_length_igp_2,
4397 .read_reg = e1000e_read_phy_reg_igp,
4398 .release = e1000_release_swflag_ich8lan,
4399 .reset = e1000_phy_hw_reset_ich8lan,
4400 .set_d0_lplu_state = e1000_set_d0_lplu_state_ich8lan,
4401 .set_d3_lplu_state = e1000_set_d3_lplu_state_ich8lan,
4402 .write_reg = e1000e_write_phy_reg_igp,
4405 static const struct e1000_nvm_operations ich8_nvm_ops = {
4406 .acquire = e1000_acquire_nvm_ich8lan,
4407 .read = e1000_read_nvm_ich8lan,
4408 .release = e1000_release_nvm_ich8lan,
4409 .reload = e1000e_reload_nvm_generic,
4410 .update = e1000_update_nvm_checksum_ich8lan,
4411 .valid_led_default = e1000_valid_led_default_ich8lan,
4412 .validate = e1000_validate_nvm_checksum_ich8lan,
4413 .write = e1000_write_nvm_ich8lan,
4416 const struct e1000_info e1000_ich8_info = {
4417 .mac = e1000_ich8lan,
4418 .flags = FLAG_HAS_WOL
4420 | FLAG_HAS_CTRLEXT_ON_LOAD
4425 .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN,
4426 .get_variants = e1000_get_variants_ich8lan,
4427 .mac_ops = &ich8_mac_ops,
4428 .phy_ops = &ich8_phy_ops,
4429 .nvm_ops = &ich8_nvm_ops,
4432 const struct e1000_info e1000_ich9_info = {
4433 .mac = e1000_ich9lan,
4434 .flags = FLAG_HAS_JUMBO_FRAMES
4437 | FLAG_HAS_CTRLEXT_ON_LOAD
4442 .max_hw_frame_size = DEFAULT_JUMBO,
4443 .get_variants = e1000_get_variants_ich8lan,
4444 .mac_ops = &ich8_mac_ops,
4445 .phy_ops = &ich8_phy_ops,
4446 .nvm_ops = &ich8_nvm_ops,
4449 const struct e1000_info e1000_ich10_info = {
4450 .mac = e1000_ich10lan,
4451 .flags = FLAG_HAS_JUMBO_FRAMES
4454 | FLAG_HAS_CTRLEXT_ON_LOAD
4459 .max_hw_frame_size = DEFAULT_JUMBO,
4460 .get_variants = e1000_get_variants_ich8lan,
4461 .mac_ops = &ich8_mac_ops,
4462 .phy_ops = &ich8_phy_ops,
4463 .nvm_ops = &ich8_nvm_ops,
4466 const struct e1000_info e1000_pch_info = {
4467 .mac = e1000_pchlan,
4468 .flags = FLAG_IS_ICH
4470 | FLAG_HAS_CTRLEXT_ON_LOAD
4473 | FLAG_HAS_JUMBO_FRAMES
4474 | FLAG_DISABLE_FC_PAUSE_TIME /* errata */
4476 .flags2 = FLAG2_HAS_PHY_STATS,
4478 .max_hw_frame_size = 4096,
4479 .get_variants = e1000_get_variants_ich8lan,
4480 .mac_ops = &ich8_mac_ops,
4481 .phy_ops = &ich8_phy_ops,
4482 .nvm_ops = &ich8_nvm_ops,
4485 const struct e1000_info e1000_pch2_info = {
4486 .mac = e1000_pch2lan,
4487 .flags = FLAG_IS_ICH
4489 | FLAG_HAS_HW_TIMESTAMP
4490 | FLAG_HAS_CTRLEXT_ON_LOAD
4493 | FLAG_HAS_JUMBO_FRAMES
4495 .flags2 = FLAG2_HAS_PHY_STATS
4498 .max_hw_frame_size = 9018,
4499 .get_variants = e1000_get_variants_ich8lan,
4500 .mac_ops = &ich8_mac_ops,
4501 .phy_ops = &ich8_phy_ops,
4502 .nvm_ops = &ich8_nvm_ops,
4505 const struct e1000_info e1000_pch_lpt_info = {
4506 .mac = e1000_pch_lpt,
4507 .flags = FLAG_IS_ICH
4509 | FLAG_HAS_HW_TIMESTAMP
4510 | FLAG_HAS_CTRLEXT_ON_LOAD
4513 | FLAG_HAS_JUMBO_FRAMES
4515 .flags2 = FLAG2_HAS_PHY_STATS
4518 .max_hw_frame_size = 9018,
4519 .get_variants = e1000_get_variants_ich8lan,
4520 .mac_ops = &ich8_mac_ops,
4521 .phy_ops = &ich8_phy_ops,
4522 .nvm_ops = &ich8_nvm_ops,