1 /*******************************************************************************
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2008 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 *******************************************************************************/
30 * 82562G 10/100 Network Connection
31 * 82562G-2 10/100 Network Connection
32 * 82562GT 10/100 Network Connection
33 * 82562GT-2 10/100 Network Connection
34 * 82562V 10/100 Network Connection
35 * 82562V-2 10/100 Network Connection
36 * 82566DC-2 Gigabit Network Connection
37 * 82566DC Gigabit Network Connection
38 * 82566DM-2 Gigabit Network Connection
39 * 82566DM Gigabit Network Connection
40 * 82566MC Gigabit Network Connection
41 * 82566MM Gigabit Network Connection
42 * 82567LM Gigabit Network Connection
43 * 82567LF Gigabit Network Connection
44 * 82567V Gigabit Network Connection
45 * 82567LM-2 Gigabit Network Connection
46 * 82567LF-2 Gigabit Network Connection
47 * 82567V-2 Gigabit Network Connection
48 * 82567LF-3 Gigabit Network Connection
49 * 82567LM-3 Gigabit Network Connection
50 * 82567LM-4 Gigabit Network Connection
51 * 82577LM Gigabit Network Connection
52 * 82577LC Gigabit Network Connection
53 * 82578DM Gigabit Network Connection
54 * 82578DC Gigabit Network Connection
59 #define ICH_FLASH_GFPREG 0x0000
60 #define ICH_FLASH_HSFSTS 0x0004
61 #define ICH_FLASH_HSFCTL 0x0006
62 #define ICH_FLASH_FADDR 0x0008
63 #define ICH_FLASH_FDATA0 0x0010
64 #define ICH_FLASH_PR0 0x0074
66 #define ICH_FLASH_READ_COMMAND_TIMEOUT 500
67 #define ICH_FLASH_WRITE_COMMAND_TIMEOUT 500
68 #define ICH_FLASH_ERASE_COMMAND_TIMEOUT 3000000
69 #define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF
70 #define ICH_FLASH_CYCLE_REPEAT_COUNT 10
72 #define ICH_CYCLE_READ 0
73 #define ICH_CYCLE_WRITE 2
74 #define ICH_CYCLE_ERASE 3
76 #define FLASH_GFPREG_BASE_MASK 0x1FFF
77 #define FLASH_SECTOR_ADDR_SHIFT 12
79 #define ICH_FLASH_SEG_SIZE_256 256
80 #define ICH_FLASH_SEG_SIZE_4K 4096
81 #define ICH_FLASH_SEG_SIZE_8K 8192
82 #define ICH_FLASH_SEG_SIZE_64K 65536
85 #define E1000_ICH_FWSM_RSPCIPHY 0x00000040 /* Reset PHY on PCI Reset */
87 #define E1000_ICH_MNG_IAMT_MODE 0x2
89 #define ID_LED_DEFAULT_ICH8LAN ((ID_LED_DEF1_DEF2 << 12) | \
90 (ID_LED_DEF1_OFF2 << 8) | \
91 (ID_LED_DEF1_ON2 << 4) | \
94 #define E1000_ICH_NVM_SIG_WORD 0x13
95 #define E1000_ICH_NVM_SIG_MASK 0xC000
96 #define E1000_ICH_NVM_VALID_SIG_MASK 0xC0
97 #define E1000_ICH_NVM_SIG_VALUE 0x80
99 #define E1000_ICH8_LAN_INIT_TIMEOUT 1500
101 #define E1000_FEXTNVM_SW_CONFIG 1
102 #define E1000_FEXTNVM_SW_CONFIG_ICH8M (1 << 27) /* Bit redefined for ICH8M :/ */
104 #define PCIE_ICH8_SNOOP_ALL PCIE_NO_SNOOP_ALL
106 #define E1000_ICH_RAR_ENTRIES 7
108 #define PHY_PAGE_SHIFT 5
109 #define PHY_REG(page, reg) (((page) << PHY_PAGE_SHIFT) | \
110 ((reg) & MAX_PHY_REG_ADDRESS))
111 #define IGP3_KMRN_DIAG PHY_REG(770, 19) /* KMRN Diagnostic */
112 #define IGP3_VR_CTRL PHY_REG(776, 18) /* Voltage Regulator Control */
114 #define IGP3_KMRN_DIAG_PCS_LOCK_LOSS 0x0002
115 #define IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK 0x0300
116 #define IGP3_VR_CTRL_MODE_SHUTDOWN 0x0200
118 #define HV_LED_CONFIG PHY_REG(768, 30) /* LED Configuration */
120 #define SW_FLAG_TIMEOUT 1000 /* SW Semaphore flag timeout in milliseconds */
122 /* SMBus Address Phy Register */
123 #define HV_SMB_ADDR PHY_REG(768, 26)
124 #define HV_SMB_ADDR_PEC_EN 0x0200
125 #define HV_SMB_ADDR_VALID 0x0080
127 /* Strapping Option Register - RO */
128 #define E1000_STRAP 0x0000C
129 #define E1000_STRAP_SMBUS_ADDRESS_MASK 0x00FE0000
130 #define E1000_STRAP_SMBUS_ADDRESS_SHIFT 17
132 /* OEM Bits Phy Register */
133 #define HV_OEM_BITS PHY_REG(768, 25)
134 #define HV_OEM_BITS_LPLU 0x0004 /* Low Power Link Up */
135 #define HV_OEM_BITS_GBE_DIS 0x0040 /* Gigabit Disable */
136 #define HV_OEM_BITS_RESTART_AN 0x0400 /* Restart Auto-negotiation */
138 #define E1000_NVM_K1_CONFIG 0x1B /* NVM K1 Config Word */
139 #define E1000_NVM_K1_ENABLE 0x1 /* NVM Enable K1 bit */
141 /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */
142 /* Offset 04h HSFSTS */
143 union ich8_hws_flash_status {
145 u16 flcdone :1; /* bit 0 Flash Cycle Done */
146 u16 flcerr :1; /* bit 1 Flash Cycle Error */
147 u16 dael :1; /* bit 2 Direct Access error Log */
148 u16 berasesz :2; /* bit 4:3 Sector Erase Size */
149 u16 flcinprog :1; /* bit 5 flash cycle in Progress */
150 u16 reserved1 :2; /* bit 13:6 Reserved */
151 u16 reserved2 :6; /* bit 13:6 Reserved */
152 u16 fldesvalid :1; /* bit 14 Flash Descriptor Valid */
153 u16 flockdn :1; /* bit 15 Flash Config Lock-Down */
158 /* ICH GbE Flash Hardware Sequencing Flash control Register bit breakdown */
159 /* Offset 06h FLCTL */
160 union ich8_hws_flash_ctrl {
161 struct ich8_hsflctl {
162 u16 flcgo :1; /* 0 Flash Cycle Go */
163 u16 flcycle :2; /* 2:1 Flash Cycle */
164 u16 reserved :5; /* 7:3 Reserved */
165 u16 fldbcount :2; /* 9:8 Flash Data Byte Count */
166 u16 flockdn :6; /* 15:10 Reserved */
171 /* ICH Flash Region Access Permissions */
172 union ich8_hws_flash_regacc {
174 u32 grra :8; /* 0:7 GbE region Read Access */
175 u32 grwa :8; /* 8:15 GbE region Write Access */
176 u32 gmrag :8; /* 23:16 GbE Master Read Access Grant */
177 u32 gmwag :8; /* 31:24 GbE Master Write Access Grant */
182 /* ICH Flash Protected Region */
183 union ich8_flash_protected_range {
185 u32 base:13; /* 0:12 Protected Range Base */
186 u32 reserved1:2; /* 13:14 Reserved */
187 u32 rpe:1; /* 15 Read Protection Enable */
188 u32 limit:13; /* 16:28 Protected Range Limit */
189 u32 reserved2:2; /* 29:30 Reserved */
190 u32 wpe:1; /* 31 Write Protection Enable */
195 static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw);
196 static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw);
197 static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw);
198 static s32 e1000_check_polarity_ife_ich8lan(struct e1000_hw *hw);
199 static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank);
200 static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
201 u32 offset, u8 byte);
202 static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
204 static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
206 static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
208 static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw);
209 static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw);
210 static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw);
211 static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw);
212 static s32 e1000_led_on_ich8lan(struct e1000_hw *hw);
213 static s32 e1000_led_off_ich8lan(struct e1000_hw *hw);
214 static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw);
215 static s32 e1000_setup_led_pchlan(struct e1000_hw *hw);
216 static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw);
217 static s32 e1000_led_on_pchlan(struct e1000_hw *hw);
218 static s32 e1000_led_off_pchlan(struct e1000_hw *hw);
219 static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active);
220 static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw);
221 static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link);
223 static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg)
225 return readw(hw->flash_address + reg);
228 static inline u32 __er32flash(struct e1000_hw *hw, unsigned long reg)
230 return readl(hw->flash_address + reg);
233 static inline void __ew16flash(struct e1000_hw *hw, unsigned long reg, u16 val)
235 writew(val, hw->flash_address + reg);
238 static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val)
240 writel(val, hw->flash_address + reg);
243 #define er16flash(reg) __er16flash(hw, (reg))
244 #define er32flash(reg) __er32flash(hw, (reg))
245 #define ew16flash(reg,val) __ew16flash(hw, (reg), (val))
246 #define ew32flash(reg,val) __ew32flash(hw, (reg), (val))
249 * e1000_init_phy_params_pchlan - Initialize PHY function pointers
250 * @hw: pointer to the HW structure
252 * Initialize family-specific PHY parameters and function pointers.
254 static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
256 struct e1000_phy_info *phy = &hw->phy;
260 phy->reset_delay_us = 100;
262 phy->ops.check_polarity = e1000_check_polarity_ife_ich8lan;
263 phy->ops.read_reg = e1000_read_phy_reg_hv;
264 phy->ops.read_reg_locked = e1000_read_phy_reg_hv_locked;
265 phy->ops.set_d0_lplu_state = e1000_set_lplu_state_pchlan;
266 phy->ops.set_d3_lplu_state = e1000_set_lplu_state_pchlan;
267 phy->ops.write_reg = e1000_write_phy_reg_hv;
268 phy->ops.write_reg_locked = e1000_write_phy_reg_hv_locked;
269 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
271 phy->id = e1000_phy_unknown;
272 e1000e_get_phy_id(hw);
273 phy->type = e1000e_get_phy_type_from_id(phy->id);
275 if (phy->type == e1000_phy_82577) {
276 phy->ops.check_polarity = e1000_check_polarity_82577;
277 phy->ops.force_speed_duplex =
278 e1000_phy_force_speed_duplex_82577;
279 phy->ops.get_cable_length = e1000_get_cable_length_82577;
280 phy->ops.get_info = e1000_get_phy_info_82577;
281 phy->ops.commit = e1000e_phy_sw_reset;
288 * e1000_init_phy_params_ich8lan - Initialize PHY function pointers
289 * @hw: pointer to the HW structure
291 * Initialize family-specific PHY parameters and function pointers.
293 static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
295 struct e1000_phy_info *phy = &hw->phy;
300 phy->reset_delay_us = 100;
303 * We may need to do this twice - once for IGP and if that fails,
304 * we'll set BM func pointers and try again
306 ret_val = e1000e_determine_phy_address(hw);
308 phy->ops.write_reg = e1000e_write_phy_reg_bm;
309 phy->ops.read_reg = e1000e_read_phy_reg_bm;
310 ret_val = e1000e_determine_phy_address(hw);
316 while ((e1000_phy_unknown == e1000e_get_phy_type_from_id(phy->id)) &&
319 ret_val = e1000e_get_phy_id(hw);
326 case IGP03E1000_E_PHY_ID:
327 phy->type = e1000_phy_igp_3;
328 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
329 phy->ops.read_reg_locked = e1000e_read_phy_reg_igp_locked;
330 phy->ops.write_reg_locked = e1000e_write_phy_reg_igp_locked;
333 case IFE_PLUS_E_PHY_ID:
335 phy->type = e1000_phy_ife;
336 phy->autoneg_mask = E1000_ALL_NOT_GIG;
338 case BME1000_E_PHY_ID:
339 phy->type = e1000_phy_bm;
340 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
341 phy->ops.read_reg = e1000e_read_phy_reg_bm;
342 phy->ops.write_reg = e1000e_write_phy_reg_bm;
343 phy->ops.commit = e1000e_phy_sw_reset;
346 return -E1000_ERR_PHY;
350 phy->ops.check_polarity = e1000_check_polarity_ife_ich8lan;
356 * e1000_init_nvm_params_ich8lan - Initialize NVM function pointers
357 * @hw: pointer to the HW structure
359 * Initialize family-specific NVM parameters and function
362 static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw)
364 struct e1000_nvm_info *nvm = &hw->nvm;
365 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
366 u32 gfpreg, sector_base_addr, sector_end_addr;
369 /* Can't read flash registers if the register set isn't mapped. */
370 if (!hw->flash_address) {
371 e_dbg("ERROR: Flash registers not mapped\n");
372 return -E1000_ERR_CONFIG;
375 nvm->type = e1000_nvm_flash_sw;
377 gfpreg = er32flash(ICH_FLASH_GFPREG);
380 * sector_X_addr is a "sector"-aligned address (4096 bytes)
381 * Add 1 to sector_end_addr since this sector is included in
384 sector_base_addr = gfpreg & FLASH_GFPREG_BASE_MASK;
385 sector_end_addr = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK) + 1;
387 /* flash_base_addr is byte-aligned */
388 nvm->flash_base_addr = sector_base_addr << FLASH_SECTOR_ADDR_SHIFT;
391 * find total size of the NVM, then cut in half since the total
392 * size represents two separate NVM banks.
394 nvm->flash_bank_size = (sector_end_addr - sector_base_addr)
395 << FLASH_SECTOR_ADDR_SHIFT;
396 nvm->flash_bank_size /= 2;
397 /* Adjust to word count */
398 nvm->flash_bank_size /= sizeof(u16);
400 nvm->word_size = E1000_ICH8_SHADOW_RAM_WORDS;
402 /* Clear shadow ram */
403 for (i = 0; i < nvm->word_size; i++) {
404 dev_spec->shadow_ram[i].modified = 0;
405 dev_spec->shadow_ram[i].value = 0xFFFF;
412 * e1000_init_mac_params_ich8lan - Initialize MAC function pointers
413 * @hw: pointer to the HW structure
415 * Initialize family-specific MAC parameters and function
418 static s32 e1000_init_mac_params_ich8lan(struct e1000_adapter *adapter)
420 struct e1000_hw *hw = &adapter->hw;
421 struct e1000_mac_info *mac = &hw->mac;
423 /* Set media type function pointer */
424 hw->phy.media_type = e1000_media_type_copper;
426 /* Set mta register count */
427 mac->mta_reg_count = 32;
428 /* Set rar entry count */
429 mac->rar_entry_count = E1000_ICH_RAR_ENTRIES;
430 if (mac->type == e1000_ich8lan)
431 mac->rar_entry_count--;
432 /* Set if manageability features are enabled. */
433 mac->arc_subsystem_valid = 1;
441 mac->ops.id_led_init = e1000e_id_led_init;
443 mac->ops.setup_led = e1000e_setup_led_generic;
445 mac->ops.cleanup_led = e1000_cleanup_led_ich8lan;
446 /* turn on/off LED */
447 mac->ops.led_on = e1000_led_on_ich8lan;
448 mac->ops.led_off = e1000_led_off_ich8lan;
452 mac->ops.id_led_init = e1000_id_led_init_pchlan;
454 mac->ops.setup_led = e1000_setup_led_pchlan;
456 mac->ops.cleanup_led = e1000_cleanup_led_pchlan;
457 /* turn on/off LED */
458 mac->ops.led_on = e1000_led_on_pchlan;
459 mac->ops.led_off = e1000_led_off_pchlan;
465 /* Enable PCS Lock-loss workaround for ICH8 */
466 if (mac->type == e1000_ich8lan)
467 e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, 1);
473 * e1000_check_for_copper_link_ich8lan - Check for link (Copper)
474 * @hw: pointer to the HW structure
476 * Checks to see of the link status of the hardware has changed. If a
477 * change in link status has been detected, then we read the PHY registers
478 * to get the current speed/duplex if link exists.
480 static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
482 struct e1000_mac_info *mac = &hw->mac;
487 * We only want to go out to the PHY registers to see if Auto-Neg
488 * has completed and/or if our link status has changed. The
489 * get_link_status flag is set upon receiving a Link Status
490 * Change or Rx Sequence Error interrupt.
492 if (!mac->get_link_status) {
498 * First we want to see if the MII Status Register reports
499 * link. If so, then we want to get the current speed/duplex
502 ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
506 if (hw->mac.type == e1000_pchlan) {
507 ret_val = e1000_k1_gig_workaround_hv(hw, link);
513 goto out; /* No link detected */
515 mac->get_link_status = false;
517 if (hw->phy.type == e1000_phy_82578) {
518 ret_val = e1000_link_stall_workaround_hv(hw);
524 * Check if there was DownShift, must be checked
525 * immediately after link-up
527 e1000e_check_downshift(hw);
530 * If we are forcing speed/duplex, then we simply return since
531 * we have already determined whether we have link or not.
534 ret_val = -E1000_ERR_CONFIG;
539 * Auto-Neg is enabled. Auto Speed Detection takes care
540 * of MAC speed/duplex configuration. So we only need to
541 * configure Collision Distance in the MAC.
543 e1000e_config_collision_dist(hw);
546 * Configure Flow Control now that Auto-Neg has completed.
547 * First, we need to restore the desired flow control
548 * settings because we may have had to re-autoneg with a
549 * different link partner.
551 ret_val = e1000e_config_fc_after_link_up(hw);
553 e_dbg("Error configuring flow control\n");
559 static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
561 struct e1000_hw *hw = &adapter->hw;
564 rc = e1000_init_mac_params_ich8lan(adapter);
568 rc = e1000_init_nvm_params_ich8lan(hw);
572 if (hw->mac.type == e1000_pchlan)
573 rc = e1000_init_phy_params_pchlan(hw);
575 rc = e1000_init_phy_params_ich8lan(hw);
579 if (adapter->hw.phy.type == e1000_phy_ife) {
580 adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
581 adapter->max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN;
584 if ((adapter->hw.mac.type == e1000_ich8lan) &&
585 (adapter->hw.phy.type == e1000_phy_igp_3))
586 adapter->flags |= FLAG_LSC_GIG_SPEED_DROP;
591 static DEFINE_MUTEX(nvm_mutex);
594 * e1000_acquire_nvm_ich8lan - Acquire NVM mutex
595 * @hw: pointer to the HW structure
597 * Acquires the mutex for performing NVM operations.
599 static s32 e1000_acquire_nvm_ich8lan(struct e1000_hw *hw)
601 mutex_lock(&nvm_mutex);
607 * e1000_release_nvm_ich8lan - Release NVM mutex
608 * @hw: pointer to the HW structure
610 * Releases the mutex used while performing NVM operations.
612 static void e1000_release_nvm_ich8lan(struct e1000_hw *hw)
614 mutex_unlock(&nvm_mutex);
619 static DEFINE_MUTEX(swflag_mutex);
622 * e1000_acquire_swflag_ich8lan - Acquire software control flag
623 * @hw: pointer to the HW structure
625 * Acquires the software control flag for performing PHY and select
628 static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw)
630 u32 extcnf_ctrl, timeout = PHY_CFG_TIMEOUT;
635 mutex_lock(&swflag_mutex);
638 extcnf_ctrl = er32(EXTCNF_CTRL);
639 if (!(extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG))
647 e_dbg("SW/FW/HW has locked the resource for too long.\n");
648 ret_val = -E1000_ERR_CONFIG;
652 timeout = SW_FLAG_TIMEOUT;
654 extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG;
655 ew32(EXTCNF_CTRL, extcnf_ctrl);
658 extcnf_ctrl = er32(EXTCNF_CTRL);
659 if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG)
667 e_dbg("Failed to acquire the semaphore.\n");
668 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
669 ew32(EXTCNF_CTRL, extcnf_ctrl);
670 ret_val = -E1000_ERR_CONFIG;
676 mutex_unlock(&swflag_mutex);
682 * e1000_release_swflag_ich8lan - Release software control flag
683 * @hw: pointer to the HW structure
685 * Releases the software control flag for performing PHY and select
688 static void e1000_release_swflag_ich8lan(struct e1000_hw *hw)
692 extcnf_ctrl = er32(EXTCNF_CTRL);
693 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
694 ew32(EXTCNF_CTRL, extcnf_ctrl);
696 mutex_unlock(&swflag_mutex);
702 * e1000_check_mng_mode_ich8lan - Checks management mode
703 * @hw: pointer to the HW structure
705 * This checks if the adapter has manageability enabled.
706 * This is a function pointer entry point only called by read/write
707 * routines for the PHY and NVM parts.
709 static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw)
711 u32 fwsm = er32(FWSM);
713 return (fwsm & E1000_FWSM_MODE_MASK) ==
714 (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT);
718 * e1000_check_reset_block_ich8lan - Check if PHY reset is blocked
719 * @hw: pointer to the HW structure
721 * Checks if firmware is blocking the reset of the PHY.
722 * This is a function pointer entry point only called by
725 static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
731 return (fwsm & E1000_ICH_FWSM_RSPCIPHY) ? 0 : E1000_BLK_PHY_RESET;
735 * e1000_phy_force_speed_duplex_ich8lan - Force PHY speed & duplex
736 * @hw: pointer to the HW structure
738 * Forces the speed and duplex settings of the PHY.
739 * This is a function pointer entry point only called by
740 * PHY setup routines.
742 static s32 e1000_phy_force_speed_duplex_ich8lan(struct e1000_hw *hw)
744 struct e1000_phy_info *phy = &hw->phy;
749 if (phy->type != e1000_phy_ife) {
750 ret_val = e1000e_phy_force_speed_duplex_igp(hw);
754 ret_val = e1e_rphy(hw, PHY_CONTROL, &data);
758 e1000e_phy_force_speed_duplex_setup(hw, &data);
760 ret_val = e1e_wphy(hw, PHY_CONTROL, data);
764 /* Disable MDI-X support for 10/100 */
765 ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data);
769 data &= ~IFE_PMC_AUTO_MDIX;
770 data &= ~IFE_PMC_FORCE_MDIX;
772 ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, data);
776 e_dbg("IFE PMC: %X\n", data);
780 if (phy->autoneg_wait_to_complete) {
781 e_dbg("Waiting for forced speed/duplex link on IFE phy.\n");
783 ret_val = e1000e_phy_has_link_generic(hw,
791 e_dbg("Link taking longer than expected.\n");
794 ret_val = e1000e_phy_has_link_generic(hw,
806 * e1000_sw_lcd_config_ich8lan - SW-based LCD Configuration
807 * @hw: pointer to the HW structure
809 * SW should configure the LCD from the NVM extended configuration region
810 * as a workaround for certain parts.
812 static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
814 struct e1000_phy_info *phy = &hw->phy;
815 u32 i, data, cnf_size, cnf_base_addr, sw_cfg_mask;
817 u16 word_addr, reg_data, reg_addr, phy_page = 0;
819 ret_val = hw->phy.ops.acquire(hw);
824 * Initialize the PHY from the NVM on ICH platforms. This
825 * is needed due to an issue where the NVM configuration is
826 * not properly autoloaded after power transitions.
827 * Therefore, after each PHY reset, we will load the
828 * configuration data out of the NVM manually.
830 if ((hw->mac.type == e1000_ich8lan && phy->type == e1000_phy_igp_3) ||
831 (hw->mac.type == e1000_pchlan)) {
832 struct e1000_adapter *adapter = hw->adapter;
834 /* Check if SW needs to configure the PHY */
835 if ((adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_M_AMT) ||
836 (adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_M) ||
837 (hw->mac.type == e1000_pchlan))
838 sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M;
840 sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG;
842 data = er32(FEXTNVM);
843 if (!(data & sw_cfg_mask))
846 /* Wait for basic configuration completes before proceeding */
847 e1000_lan_init_done_ich8lan(hw);
850 * Make sure HW does not configure LCD from PHY
851 * extended configuration before SW configuration
853 data = er32(EXTCNF_CTRL);
854 if (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE)
857 cnf_size = er32(EXTCNF_SIZE);
858 cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK;
859 cnf_size >>= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT;
863 cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK;
864 cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT;
866 if (!(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE) &&
867 (hw->mac.type == e1000_pchlan)) {
869 * HW configures the SMBus address and LEDs when the
870 * OEM and LCD Write Enable bits are set in the NVM.
871 * When both NVM bits are cleared, SW will configure
875 data &= E1000_STRAP_SMBUS_ADDRESS_MASK;
876 reg_data = data >> E1000_STRAP_SMBUS_ADDRESS_SHIFT;
877 reg_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID;
878 ret_val = e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR,
884 ret_val = e1000_write_phy_reg_hv_locked(hw,
890 /* Configure LCD from extended configuration region. */
892 /* cnf_base_addr is in DWORD */
893 word_addr = (u16)(cnf_base_addr << 1);
895 for (i = 0; i < cnf_size; i++) {
896 ret_val = e1000_read_nvm(hw, (word_addr + i * 2), 1,
901 ret_val = e1000_read_nvm(hw, (word_addr + i * 2 + 1),
906 /* Save off the PHY page for future writes. */
907 if (reg_addr == IGP01E1000_PHY_PAGE_SELECT) {
912 reg_addr &= PHY_REG_MASK;
913 reg_addr |= phy_page;
915 ret_val = phy->ops.write_reg_locked(hw,
924 hw->phy.ops.release(hw);
929 * e1000_k1_gig_workaround_hv - K1 Si workaround
930 * @hw: pointer to the HW structure
931 * @link: link up bool flag
933 * If K1 is enabled for 1Gbps, the MAC might stall when transitioning
934 * from a lower speed. This workaround disables K1 whenever link is at 1Gig
935 * If link is down, the function will restore the default K1 setting located
938 static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link)
942 bool k1_enable = hw->dev_spec.ich8lan.nvm_k1_enabled;
944 if (hw->mac.type != e1000_pchlan)
947 /* Wrap the whole flow with the sw flag */
948 ret_val = hw->phy.ops.acquire(hw);
952 /* Disable K1 when link is 1Gbps, otherwise use the NVM setting */
954 if (hw->phy.type == e1000_phy_82578) {
955 ret_val = hw->phy.ops.read_reg_locked(hw, BM_CS_STATUS,
960 status_reg &= BM_CS_STATUS_LINK_UP |
961 BM_CS_STATUS_RESOLVED |
962 BM_CS_STATUS_SPEED_MASK;
964 if (status_reg == (BM_CS_STATUS_LINK_UP |
965 BM_CS_STATUS_RESOLVED |
966 BM_CS_STATUS_SPEED_1000))
970 if (hw->phy.type == e1000_phy_82577) {
971 ret_val = hw->phy.ops.read_reg_locked(hw, HV_M_STATUS,
976 status_reg &= HV_M_STATUS_LINK_UP |
977 HV_M_STATUS_AUTONEG_COMPLETE |
978 HV_M_STATUS_SPEED_MASK;
980 if (status_reg == (HV_M_STATUS_LINK_UP |
981 HV_M_STATUS_AUTONEG_COMPLETE |
982 HV_M_STATUS_SPEED_1000))
986 /* Link stall fix for link up */
987 ret_val = hw->phy.ops.write_reg_locked(hw, PHY_REG(770, 19),
993 /* Link stall fix for link down */
994 ret_val = hw->phy.ops.write_reg_locked(hw, PHY_REG(770, 19),
1000 ret_val = e1000_configure_k1_ich8lan(hw, k1_enable);
1003 hw->phy.ops.release(hw);
1009 * e1000_configure_k1_ich8lan - Configure K1 power state
1010 * @hw: pointer to the HW structure
1011 * @enable: K1 state to configure
1013 * Configure the K1 power state based on the provided parameter.
1014 * Assumes semaphore already acquired.
1016 * Success returns 0, Failure returns -E1000_ERR_PHY (-2)
1018 s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable)
1026 ret_val = e1000e_read_kmrn_reg_locked(hw,
1027 E1000_KMRNCTRLSTA_K1_CONFIG,
1033 kmrn_reg |= E1000_KMRNCTRLSTA_K1_ENABLE;
1035 kmrn_reg &= ~E1000_KMRNCTRLSTA_K1_ENABLE;
1037 ret_val = e1000e_write_kmrn_reg_locked(hw,
1038 E1000_KMRNCTRLSTA_K1_CONFIG,
1044 ctrl_ext = er32(CTRL_EXT);
1045 ctrl_reg = er32(CTRL);
1047 reg = ctrl_reg & ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1048 reg |= E1000_CTRL_FRCSPD;
1051 ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_SPD_BYPS);
1053 ew32(CTRL, ctrl_reg);
1054 ew32(CTRL_EXT, ctrl_ext);
1062 * e1000_oem_bits_config_ich8lan - SW-based LCD Configuration
1063 * @hw: pointer to the HW structure
1064 * @d0_state: boolean if entering d0 or d3 device state
1066 * SW will configure Gbe Disable and LPLU based on the NVM. The four bits are
1067 * collectively called OEM bits. The OEM Write Enable bit and SW Config bit
1068 * in NVM determines whether HW should configure LPLU and Gbe Disable.
1070 static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state)
1076 if (hw->mac.type != e1000_pchlan)
1079 ret_val = hw->phy.ops.acquire(hw);
1083 mac_reg = er32(EXTCNF_CTRL);
1084 if (mac_reg & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)
1087 mac_reg = er32(FEXTNVM);
1088 if (!(mac_reg & E1000_FEXTNVM_SW_CONFIG_ICH8M))
1091 mac_reg = er32(PHY_CTRL);
1093 ret_val = hw->phy.ops.read_reg_locked(hw, HV_OEM_BITS, &oem_reg);
1097 oem_reg &= ~(HV_OEM_BITS_GBE_DIS | HV_OEM_BITS_LPLU);
1100 if (mac_reg & E1000_PHY_CTRL_GBE_DISABLE)
1101 oem_reg |= HV_OEM_BITS_GBE_DIS;
1103 if (mac_reg & E1000_PHY_CTRL_D0A_LPLU)
1104 oem_reg |= HV_OEM_BITS_LPLU;
1106 if (mac_reg & E1000_PHY_CTRL_NOND0A_GBE_DISABLE)
1107 oem_reg |= HV_OEM_BITS_GBE_DIS;
1109 if (mac_reg & E1000_PHY_CTRL_NOND0A_LPLU)
1110 oem_reg |= HV_OEM_BITS_LPLU;
1112 /* Restart auto-neg to activate the bits */
1113 oem_reg |= HV_OEM_BITS_RESTART_AN;
1114 ret_val = hw->phy.ops.write_reg_locked(hw, HV_OEM_BITS, oem_reg);
1117 hw->phy.ops.release(hw);
1124 * e1000_hv_phy_workarounds_ich8lan - A series of Phy workarounds to be
1125 * done after every PHY reset.
1127 static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw)
1131 if (hw->mac.type != e1000_pchlan)
1134 if (((hw->phy.type == e1000_phy_82577) &&
1135 ((hw->phy.revision == 1) || (hw->phy.revision == 2))) ||
1136 ((hw->phy.type == e1000_phy_82578) && (hw->phy.revision == 1))) {
1137 /* Disable generation of early preamble */
1138 ret_val = e1e_wphy(hw, PHY_REG(769, 25), 0x4431);
1142 /* Preamble tuning for SSC */
1143 ret_val = e1e_wphy(hw, PHY_REG(770, 16), 0xA204);
1148 if (hw->phy.type == e1000_phy_82578) {
1150 * Return registers to default by doing a soft reset then
1151 * writing 0x3140 to the control register.
1153 if (hw->phy.revision < 2) {
1154 e1000e_phy_sw_reset(hw);
1155 ret_val = e1e_wphy(hw, PHY_CONTROL, 0x3140);
1160 ret_val = hw->phy.ops.acquire(hw);
1165 ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0);
1168 hw->phy.ops.release(hw);
1171 * Configure the K1 Si workaround during phy reset assuming there is
1172 * link so that it disables K1 if link is in 1Gbps.
1174 ret_val = e1000_k1_gig_workaround_hv(hw, true);
1181 * e1000_lan_init_done_ich8lan - Check for PHY config completion
1182 * @hw: pointer to the HW structure
1184 * Check the appropriate indication the MAC has finished configuring the
1185 * PHY after a software reset.
1187 static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw)
1189 u32 data, loop = E1000_ICH8_LAN_INIT_TIMEOUT;
1191 /* Wait for basic configuration completes before proceeding */
1193 data = er32(STATUS);
1194 data &= E1000_STATUS_LAN_INIT_DONE;
1196 } while ((!data) && --loop);
1199 * If basic configuration is incomplete before the above loop
1200 * count reaches 0, loading the configuration from NVM will
1201 * leave the PHY in a bad state possibly resulting in no link.
1204 e_dbg("LAN_INIT_DONE not set, increase timeout\n");
1206 /* Clear the Init Done bit for the next init event */
1207 data = er32(STATUS);
1208 data &= ~E1000_STATUS_LAN_INIT_DONE;
1213 * e1000_phy_hw_reset_ich8lan - Performs a PHY reset
1214 * @hw: pointer to the HW structure
1217 * This is a function pointer entry point called by drivers
1218 * or other shared routines.
1220 static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
1225 ret_val = e1000e_phy_hw_reset_generic(hw);
1229 /* Allow time for h/w to get to a quiescent state after reset */
1232 if (hw->mac.type == e1000_pchlan) {
1233 ret_val = e1000_hv_phy_workarounds_ich8lan(hw);
1238 /* Dummy read to clear the phy wakeup bit after lcd reset */
1239 if (hw->mac.type == e1000_pchlan)
1240 e1e_rphy(hw, BM_WUC, ®);
1242 /* Configure the LCD with the extended configuration region in NVM */
1243 ret_val = e1000_sw_lcd_config_ich8lan(hw);
1247 /* Configure the LCD with the OEM bits in NVM */
1248 if (hw->mac.type == e1000_pchlan)
1249 ret_val = e1000_oem_bits_config_ich8lan(hw, true);
1256 * e1000_get_phy_info_ife_ich8lan - Retrieves various IFE PHY states
1257 * @hw: pointer to the HW structure
1259 * Populates "phy" structure with various feature states.
1260 * This function is only called by other family-specific
1263 static s32 e1000_get_phy_info_ife_ich8lan(struct e1000_hw *hw)
1265 struct e1000_phy_info *phy = &hw->phy;
1270 ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
1275 e_dbg("Phy info is only valid if link is up\n");
1276 return -E1000_ERR_CONFIG;
1279 ret_val = e1e_rphy(hw, IFE_PHY_SPECIAL_CONTROL, &data);
1282 phy->polarity_correction = (!(data & IFE_PSC_AUTO_POLARITY_DISABLE));
1284 if (phy->polarity_correction) {
1285 ret_val = phy->ops.check_polarity(hw);
1289 /* Polarity is forced */
1290 phy->cable_polarity = (data & IFE_PSC_FORCE_POLARITY)
1291 ? e1000_rev_polarity_reversed
1292 : e1000_rev_polarity_normal;
1295 ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data);
1299 phy->is_mdix = (data & IFE_PMC_MDIX_STATUS);
1301 /* The following parameters are undefined for 10/100 operation. */
1302 phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED;
1303 phy->local_rx = e1000_1000t_rx_status_undefined;
1304 phy->remote_rx = e1000_1000t_rx_status_undefined;
1310 * e1000_get_phy_info_ich8lan - Calls appropriate PHY type get_phy_info
1311 * @hw: pointer to the HW structure
1313 * Wrapper for calling the get_phy_info routines for the appropriate phy type.
1314 * This is a function pointer entry point called by drivers
1315 * or other shared routines.
1317 static s32 e1000_get_phy_info_ich8lan(struct e1000_hw *hw)
1319 switch (hw->phy.type) {
1321 return e1000_get_phy_info_ife_ich8lan(hw);
1323 case e1000_phy_igp_3:
1325 case e1000_phy_82578:
1326 case e1000_phy_82577:
1327 return e1000e_get_phy_info_igp(hw);
1333 return -E1000_ERR_PHY_TYPE;
1337 * e1000_check_polarity_ife_ich8lan - Check cable polarity for IFE PHY
1338 * @hw: pointer to the HW structure
1340 * Polarity is determined on the polarity reversal feature being enabled.
1341 * This function is only called by other family-specific
1344 static s32 e1000_check_polarity_ife_ich8lan(struct e1000_hw *hw)
1346 struct e1000_phy_info *phy = &hw->phy;
1348 u16 phy_data, offset, mask;
1351 * Polarity is determined based on the reversal feature being enabled.
1353 if (phy->polarity_correction) {
1354 offset = IFE_PHY_EXTENDED_STATUS_CONTROL;
1355 mask = IFE_PESC_POLARITY_REVERSED;
1357 offset = IFE_PHY_SPECIAL_CONTROL;
1358 mask = IFE_PSC_FORCE_POLARITY;
1361 ret_val = e1e_rphy(hw, offset, &phy_data);
1364 phy->cable_polarity = (phy_data & mask)
1365 ? e1000_rev_polarity_reversed
1366 : e1000_rev_polarity_normal;
1372 * e1000_set_lplu_state_pchlan - Set Low Power Link Up state
1373 * @hw: pointer to the HW structure
1374 * @active: true to enable LPLU, false to disable
1376 * Sets the LPLU state according to the active flag. For PCH, if OEM write
1377 * bit are disabled in the NVM, writing the LPLU bits in the MAC will not set
1378 * the phy speed. This function will manually set the LPLU bit and restart
1379 * auto-neg as hw would do. D3 and D0 LPLU will call the same function
1380 * since it configures the same bit.
1382 static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active)
1387 ret_val = e1e_rphy(hw, HV_OEM_BITS, &oem_reg);
1392 oem_reg |= HV_OEM_BITS_LPLU;
1394 oem_reg &= ~HV_OEM_BITS_LPLU;
1396 oem_reg |= HV_OEM_BITS_RESTART_AN;
1397 ret_val = e1e_wphy(hw, HV_OEM_BITS, oem_reg);
1404 * e1000_set_d0_lplu_state_ich8lan - Set Low Power Linkup D0 state
1405 * @hw: pointer to the HW structure
1406 * @active: TRUE to enable LPLU, FALSE to disable
1408 * Sets the LPLU D0 state according to the active flag. When
1409 * activating LPLU this function also disables smart speed
1410 * and vice versa. LPLU will not be activated unless the
1411 * device autonegotiation advertisement meets standards of
1412 * either 10 or 10/100 or 10/100/1000 at all duplexes.
1413 * This is a function pointer entry point only called by
1414 * PHY setup routines.
1416 static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
1418 struct e1000_phy_info *phy = &hw->phy;
1423 if (phy->type == e1000_phy_ife)
1426 phy_ctrl = er32(PHY_CTRL);
1429 phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU;
1430 ew32(PHY_CTRL, phy_ctrl);
1432 if (phy->type != e1000_phy_igp_3)
1436 * Call gig speed drop workaround on LPLU before accessing
1439 if (hw->mac.type == e1000_ich8lan)
1440 e1000e_gig_downshift_workaround_ich8lan(hw);
1442 /* When LPLU is enabled, we should disable SmartSpeed */
1443 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
1444 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
1445 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
1449 phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU;
1450 ew32(PHY_CTRL, phy_ctrl);
1452 if (phy->type != e1000_phy_igp_3)
1456 * LPLU and SmartSpeed are mutually exclusive. LPLU is used
1457 * during Dx states where the power conservation is most
1458 * important. During driver activity we should enable
1459 * SmartSpeed, so performance is maintained.
1461 if (phy->smart_speed == e1000_smart_speed_on) {
1462 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1467 data |= IGP01E1000_PSCFR_SMART_SPEED;
1468 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1472 } else if (phy->smart_speed == e1000_smart_speed_off) {
1473 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1478 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
1479 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1490 * e1000_set_d3_lplu_state_ich8lan - Set Low Power Linkup D3 state
1491 * @hw: pointer to the HW structure
1492 * @active: TRUE to enable LPLU, FALSE to disable
1494 * Sets the LPLU D3 state according to the active flag. When
1495 * activating LPLU this function also disables smart speed
1496 * and vice versa. LPLU will not be activated unless the
1497 * device autonegotiation advertisement meets standards of
1498 * either 10 or 10/100 or 10/100/1000 at all duplexes.
1499 * This is a function pointer entry point only called by
1500 * PHY setup routines.
1502 static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
1504 struct e1000_phy_info *phy = &hw->phy;
1509 phy_ctrl = er32(PHY_CTRL);
1512 phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU;
1513 ew32(PHY_CTRL, phy_ctrl);
1515 if (phy->type != e1000_phy_igp_3)
1519 * LPLU and SmartSpeed are mutually exclusive. LPLU is used
1520 * during Dx states where the power conservation is most
1521 * important. During driver activity we should enable
1522 * SmartSpeed, so performance is maintained.
1524 if (phy->smart_speed == e1000_smart_speed_on) {
1525 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1530 data |= IGP01E1000_PSCFR_SMART_SPEED;
1531 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1535 } else if (phy->smart_speed == e1000_smart_speed_off) {
1536 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1541 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
1542 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1547 } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
1548 (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
1549 (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
1550 phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU;
1551 ew32(PHY_CTRL, phy_ctrl);
1553 if (phy->type != e1000_phy_igp_3)
1557 * Call gig speed drop workaround on LPLU before accessing
1560 if (hw->mac.type == e1000_ich8lan)
1561 e1000e_gig_downshift_workaround_ich8lan(hw);
1563 /* When LPLU is enabled, we should disable SmartSpeed */
1564 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
1568 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
1569 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
1576 * e1000_valid_nvm_bank_detect_ich8lan - finds out the valid bank 0 or 1
1577 * @hw: pointer to the HW structure
1578 * @bank: pointer to the variable that returns the active bank
1580 * Reads signature byte from the NVM using the flash access registers.
1581 * Word 0x13 bits 15:14 = 10b indicate a valid signature for that bank.
1583 static s32 e1000_valid_nvm_bank_detect_ich8lan(struct e1000_hw *hw, u32 *bank)
1586 struct e1000_nvm_info *nvm = &hw->nvm;
1587 u32 bank1_offset = nvm->flash_bank_size * sizeof(u16);
1588 u32 act_offset = E1000_ICH_NVM_SIG_WORD * 2 + 1;
1592 switch (hw->mac.type) {
1596 if ((eecd & E1000_EECD_SEC1VAL_VALID_MASK) ==
1597 E1000_EECD_SEC1VAL_VALID_MASK) {
1598 if (eecd & E1000_EECD_SEC1VAL)
1605 e_dbg("Unable to determine valid NVM bank via EEC - "
1606 "reading flash signature\n");
1609 /* set bank to 0 in case flash read fails */
1613 ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset,
1617 if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
1618 E1000_ICH_NVM_SIG_VALUE) {
1624 ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset +
1629 if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
1630 E1000_ICH_NVM_SIG_VALUE) {
1635 e_dbg("ERROR: No valid NVM bank present\n");
1636 return -E1000_ERR_NVM;
1643 * e1000_read_nvm_ich8lan - Read word(s) from the NVM
1644 * @hw: pointer to the HW structure
1645 * @offset: The offset (in bytes) of the word(s) to read.
1646 * @words: Size of data to read in words
1647 * @data: Pointer to the word(s) to read at offset.
1649 * Reads a word(s) from the NVM using the flash access registers.
1651 static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
1654 struct e1000_nvm_info *nvm = &hw->nvm;
1655 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
1661 if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
1663 e_dbg("nvm parameter(s) out of bounds\n");
1664 ret_val = -E1000_ERR_NVM;
1668 nvm->ops.acquire(hw);
1670 ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
1672 e_dbg("Could not detect valid bank, assuming bank 0\n");
1676 act_offset = (bank) ? nvm->flash_bank_size : 0;
1677 act_offset += offset;
1680 for (i = 0; i < words; i++) {
1681 if ((dev_spec->shadow_ram) &&
1682 (dev_spec->shadow_ram[offset+i].modified)) {
1683 data[i] = dev_spec->shadow_ram[offset+i].value;
1685 ret_val = e1000_read_flash_word_ich8lan(hw,
1694 nvm->ops.release(hw);
1698 e_dbg("NVM read error: %d\n", ret_val);
1704 * e1000_flash_cycle_init_ich8lan - Initialize flash
1705 * @hw: pointer to the HW structure
1707 * This function does initial flash setup so that a new read/write/erase cycle
1710 static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw)
1712 union ich8_hws_flash_status hsfsts;
1713 s32 ret_val = -E1000_ERR_NVM;
1716 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
1718 /* Check if the flash descriptor is valid */
1719 if (hsfsts.hsf_status.fldesvalid == 0) {
1720 e_dbg("Flash descriptor invalid. "
1721 "SW Sequencing must be used.");
1722 return -E1000_ERR_NVM;
1725 /* Clear FCERR and DAEL in hw status by writing 1 */
1726 hsfsts.hsf_status.flcerr = 1;
1727 hsfsts.hsf_status.dael = 1;
1729 ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
1732 * Either we should have a hardware SPI cycle in progress
1733 * bit to check against, in order to start a new cycle or
1734 * FDONE bit should be changed in the hardware so that it
1735 * is 1 after hardware reset, which can then be used as an
1736 * indication whether a cycle is in progress or has been
1740 if (hsfsts.hsf_status.flcinprog == 0) {
1742 * There is no cycle running at present,
1743 * so we can start a cycle
1744 * Begin by setting Flash Cycle Done.
1746 hsfsts.hsf_status.flcdone = 1;
1747 ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
1751 * otherwise poll for sometime so the current
1752 * cycle has a chance to end before giving up.
1754 for (i = 0; i < ICH_FLASH_READ_COMMAND_TIMEOUT; i++) {
1755 hsfsts.regval = __er16flash(hw, ICH_FLASH_HSFSTS);
1756 if (hsfsts.hsf_status.flcinprog == 0) {
1764 * Successful in waiting for previous cycle to timeout,
1765 * now set the Flash Cycle Done.
1767 hsfsts.hsf_status.flcdone = 1;
1768 ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
1770 e_dbg("Flash controller busy, cannot get access");
1778 * e1000_flash_cycle_ich8lan - Starts flash cycle (read/write/erase)
1779 * @hw: pointer to the HW structure
1780 * @timeout: maximum time to wait for completion
1782 * This function starts a flash cycle and waits for its completion.
1784 static s32 e1000_flash_cycle_ich8lan(struct e1000_hw *hw, u32 timeout)
1786 union ich8_hws_flash_ctrl hsflctl;
1787 union ich8_hws_flash_status hsfsts;
1788 s32 ret_val = -E1000_ERR_NVM;
1791 /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */
1792 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
1793 hsflctl.hsf_ctrl.flcgo = 1;
1794 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
1796 /* wait till FDONE bit is set to 1 */
1798 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
1799 if (hsfsts.hsf_status.flcdone == 1)
1802 } while (i++ < timeout);
1804 if (hsfsts.hsf_status.flcdone == 1 && hsfsts.hsf_status.flcerr == 0)
1811 * e1000_read_flash_word_ich8lan - Read word from flash
1812 * @hw: pointer to the HW structure
1813 * @offset: offset to data location
1814 * @data: pointer to the location for storing the data
1816 * Reads the flash word at offset into data. Offset is converted
1817 * to bytes before read.
1819 static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
1822 /* Must convert offset into bytes. */
1825 return e1000_read_flash_data_ich8lan(hw, offset, 2, data);
1829 * e1000_read_flash_byte_ich8lan - Read byte from flash
1830 * @hw: pointer to the HW structure
1831 * @offset: The offset of the byte to read.
1832 * @data: Pointer to a byte to store the value read.
1834 * Reads a single byte from the NVM using the flash access registers.
1836 static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
1842 ret_val = e1000_read_flash_data_ich8lan(hw, offset, 1, &word);
1852 * e1000_read_flash_data_ich8lan - Read byte or word from NVM
1853 * @hw: pointer to the HW structure
1854 * @offset: The offset (in bytes) of the byte or word to read.
1855 * @size: Size of data to read, 1=byte 2=word
1856 * @data: Pointer to the word to store the value read.
1858 * Reads a byte or word from the NVM using the flash access registers.
1860 static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
1863 union ich8_hws_flash_status hsfsts;
1864 union ich8_hws_flash_ctrl hsflctl;
1865 u32 flash_linear_addr;
1867 s32 ret_val = -E1000_ERR_NVM;
1870 if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK)
1871 return -E1000_ERR_NVM;
1873 flash_linear_addr = (ICH_FLASH_LINEAR_ADDR_MASK & offset) +
1874 hw->nvm.flash_base_addr;
1879 ret_val = e1000_flash_cycle_init_ich8lan(hw);
1883 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
1884 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
1885 hsflctl.hsf_ctrl.fldbcount = size - 1;
1886 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ;
1887 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
1889 ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
1891 ret_val = e1000_flash_cycle_ich8lan(hw,
1892 ICH_FLASH_READ_COMMAND_TIMEOUT);
1895 * Check if FCERR is set to 1, if set to 1, clear it
1896 * and try the whole sequence a few more times, else
1897 * read in (shift in) the Flash Data0, the order is
1898 * least significant byte first msb to lsb
1901 flash_data = er32flash(ICH_FLASH_FDATA0);
1903 *data = (u8)(flash_data & 0x000000FF);
1904 } else if (size == 2) {
1905 *data = (u16)(flash_data & 0x0000FFFF);
1910 * If we've gotten here, then things are probably
1911 * completely hosed, but if the error condition is
1912 * detected, it won't hurt to give it another try...
1913 * ICH_FLASH_CYCLE_REPEAT_COUNT times.
1915 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
1916 if (hsfsts.hsf_status.flcerr == 1) {
1917 /* Repeat for some time before giving up. */
1919 } else if (hsfsts.hsf_status.flcdone == 0) {
1920 e_dbg("Timeout error - flash cycle "
1921 "did not complete.");
1925 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
1931 * e1000_write_nvm_ich8lan - Write word(s) to the NVM
1932 * @hw: pointer to the HW structure
1933 * @offset: The offset (in bytes) of the word(s) to write.
1934 * @words: Size of data to write in words
1935 * @data: Pointer to the word(s) to write at offset.
1937 * Writes a byte or word to the NVM using the flash access registers.
1939 static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
1942 struct e1000_nvm_info *nvm = &hw->nvm;
1943 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
1946 if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
1948 e_dbg("nvm parameter(s) out of bounds\n");
1949 return -E1000_ERR_NVM;
1952 nvm->ops.acquire(hw);
1954 for (i = 0; i < words; i++) {
1955 dev_spec->shadow_ram[offset+i].modified = 1;
1956 dev_spec->shadow_ram[offset+i].value = data[i];
1959 nvm->ops.release(hw);
1965 * e1000_update_nvm_checksum_ich8lan - Update the checksum for NVM
1966 * @hw: pointer to the HW structure
1968 * The NVM checksum is updated by calling the generic update_nvm_checksum,
1969 * which writes the checksum to the shadow ram. The changes in the shadow
1970 * ram are then committed to the EEPROM by processing each bank at a time
1971 * checking for the modified bit and writing only the pending changes.
1972 * After a successful commit, the shadow ram is cleared and is ready for
1975 static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
1977 struct e1000_nvm_info *nvm = &hw->nvm;
1978 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
1979 u32 i, act_offset, new_bank_offset, old_bank_offset, bank;
1983 ret_val = e1000e_update_nvm_checksum_generic(hw);
1987 if (nvm->type != e1000_nvm_flash_sw)
1990 nvm->ops.acquire(hw);
1993 * We're writing to the opposite bank so if we're on bank 1,
1994 * write to bank 0 etc. We also need to erase the segment that
1995 * is going to be written
1997 ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
1999 e_dbg("Could not detect valid bank, assuming bank 0\n");
2004 new_bank_offset = nvm->flash_bank_size;
2005 old_bank_offset = 0;
2006 ret_val = e1000_erase_flash_bank_ich8lan(hw, 1);
2008 nvm->ops.release(hw);
2012 old_bank_offset = nvm->flash_bank_size;
2013 new_bank_offset = 0;
2014 ret_val = e1000_erase_flash_bank_ich8lan(hw, 0);
2016 nvm->ops.release(hw);
2021 for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) {
2023 * Determine whether to write the value stored
2024 * in the other NVM bank or a modified value stored
2027 if (dev_spec->shadow_ram[i].modified) {
2028 data = dev_spec->shadow_ram[i].value;
2030 ret_val = e1000_read_flash_word_ich8lan(hw, i +
2038 * If the word is 0x13, then make sure the signature bits
2039 * (15:14) are 11b until the commit has completed.
2040 * This will allow us to write 10b which indicates the
2041 * signature is valid. We want to do this after the write
2042 * has completed so that we don't mark the segment valid
2043 * while the write is still in progress
2045 if (i == E1000_ICH_NVM_SIG_WORD)
2046 data |= E1000_ICH_NVM_SIG_MASK;
2048 /* Convert offset to bytes. */
2049 act_offset = (i + new_bank_offset) << 1;
2052 /* Write the bytes to the new bank. */
2053 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
2060 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
2068 * Don't bother writing the segment valid bits if sector
2069 * programming failed.
2072 /* Possibly read-only, see e1000e_write_protect_nvm_ich8lan() */
2073 e_dbg("Flash commit failed.\n");
2074 nvm->ops.release(hw);
2079 * Finally validate the new segment by setting bit 15:14
2080 * to 10b in word 0x13 , this can be done without an
2081 * erase as well since these bits are 11 to start with
2082 * and we need to change bit 14 to 0b
2084 act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD;
2085 ret_val = e1000_read_flash_word_ich8lan(hw, act_offset, &data);
2087 nvm->ops.release(hw);
2091 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
2095 nvm->ops.release(hw);
2100 * And invalidate the previously valid segment by setting
2101 * its signature word (0x13) high_byte to 0b. This can be
2102 * done without an erase because flash erase sets all bits
2103 * to 1's. We can write 1's to 0's without an erase
2105 act_offset = (old_bank_offset + E1000_ICH_NVM_SIG_WORD) * 2 + 1;
2106 ret_val = e1000_retry_write_flash_byte_ich8lan(hw, act_offset, 0);
2108 nvm->ops.release(hw);
2112 /* Great! Everything worked, we can now clear the cached entries. */
2113 for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) {
2114 dev_spec->shadow_ram[i].modified = 0;
2115 dev_spec->shadow_ram[i].value = 0xFFFF;
2118 nvm->ops.release(hw);
2121 * Reload the EEPROM, or else modifications will not appear
2122 * until after the next adapter reset.
2124 e1000e_reload_nvm(hw);
2129 e_dbg("NVM update error: %d\n", ret_val);
2135 * e1000_validate_nvm_checksum_ich8lan - Validate EEPROM checksum
2136 * @hw: pointer to the HW structure
2138 * Check to see if checksum needs to be fixed by reading bit 6 in word 0x19.
2139 * If the bit is 0, that the EEPROM had been modified, but the checksum was not
2140 * calculated, in which case we need to calculate the checksum and set bit 6.
2142 static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw)
2148 * Read 0x19 and check bit 6. If this bit is 0, the checksum
2149 * needs to be fixed. This bit is an indication that the NVM
2150 * was prepared by OEM software and did not calculate the
2151 * checksum...a likely scenario.
2153 ret_val = e1000_read_nvm(hw, 0x19, 1, &data);
2157 if ((data & 0x40) == 0) {
2159 ret_val = e1000_write_nvm(hw, 0x19, 1, &data);
2162 ret_val = e1000e_update_nvm_checksum(hw);
2167 return e1000e_validate_nvm_checksum_generic(hw);
2171 * e1000e_write_protect_nvm_ich8lan - Make the NVM read-only
2172 * @hw: pointer to the HW structure
2174 * To prevent malicious write/erase of the NVM, set it to be read-only
2175 * so that the hardware ignores all write/erase cycles of the NVM via
2176 * the flash control registers. The shadow-ram copy of the NVM will
2177 * still be updated, however any updates to this copy will not stick
2178 * across driver reloads.
2180 void e1000e_write_protect_nvm_ich8lan(struct e1000_hw *hw)
2182 struct e1000_nvm_info *nvm = &hw->nvm;
2183 union ich8_flash_protected_range pr0;
2184 union ich8_hws_flash_status hsfsts;
2187 nvm->ops.acquire(hw);
2189 gfpreg = er32flash(ICH_FLASH_GFPREG);
2191 /* Write-protect GbE Sector of NVM */
2192 pr0.regval = er32flash(ICH_FLASH_PR0);
2193 pr0.range.base = gfpreg & FLASH_GFPREG_BASE_MASK;
2194 pr0.range.limit = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK);
2195 pr0.range.wpe = true;
2196 ew32flash(ICH_FLASH_PR0, pr0.regval);
2199 * Lock down a subset of GbE Flash Control Registers, e.g.
2200 * PR0 to prevent the write-protection from being lifted.
2201 * Once FLOCKDN is set, the registers protected by it cannot
2202 * be written until FLOCKDN is cleared by a hardware reset.
2204 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2205 hsfsts.hsf_status.flockdn = true;
2206 ew32flash(ICH_FLASH_HSFSTS, hsfsts.regval);
2208 nvm->ops.release(hw);
2212 * e1000_write_flash_data_ich8lan - Writes bytes to the NVM
2213 * @hw: pointer to the HW structure
2214 * @offset: The offset (in bytes) of the byte/word to read.
2215 * @size: Size of data to read, 1=byte 2=word
2216 * @data: The byte(s) to write to the NVM.
2218 * Writes one/two bytes to the NVM using the flash access registers.
2220 static s32 e1000_write_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
2223 union ich8_hws_flash_status hsfsts;
2224 union ich8_hws_flash_ctrl hsflctl;
2225 u32 flash_linear_addr;
2230 if (size < 1 || size > 2 || data > size * 0xff ||
2231 offset > ICH_FLASH_LINEAR_ADDR_MASK)
2232 return -E1000_ERR_NVM;
2234 flash_linear_addr = (ICH_FLASH_LINEAR_ADDR_MASK & offset) +
2235 hw->nvm.flash_base_addr;
2240 ret_val = e1000_flash_cycle_init_ich8lan(hw);
2244 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
2245 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
2246 hsflctl.hsf_ctrl.fldbcount = size -1;
2247 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE;
2248 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
2250 ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
2253 flash_data = (u32)data & 0x00FF;
2255 flash_data = (u32)data;
2257 ew32flash(ICH_FLASH_FDATA0, flash_data);
2260 * check if FCERR is set to 1 , if set to 1, clear it
2261 * and try the whole sequence a few more times else done
2263 ret_val = e1000_flash_cycle_ich8lan(hw,
2264 ICH_FLASH_WRITE_COMMAND_TIMEOUT);
2269 * If we're here, then things are most likely
2270 * completely hosed, but if the error condition
2271 * is detected, it won't hurt to give it another
2272 * try...ICH_FLASH_CYCLE_REPEAT_COUNT times.
2274 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2275 if (hsfsts.hsf_status.flcerr == 1)
2276 /* Repeat for some time before giving up. */
2278 if (hsfsts.hsf_status.flcdone == 0) {
2279 e_dbg("Timeout error - flash cycle "
2280 "did not complete.");
2283 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
2289 * e1000_write_flash_byte_ich8lan - Write a single byte to NVM
2290 * @hw: pointer to the HW structure
2291 * @offset: The index of the byte to read.
2292 * @data: The byte to write to the NVM.
2294 * Writes a single byte to the NVM using the flash access registers.
2296 static s32 e1000_write_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
2299 u16 word = (u16)data;
2301 return e1000_write_flash_data_ich8lan(hw, offset, 1, word);
2305 * e1000_retry_write_flash_byte_ich8lan - Writes a single byte to NVM
2306 * @hw: pointer to the HW structure
2307 * @offset: The offset of the byte to write.
2308 * @byte: The byte to write to the NVM.
2310 * Writes a single byte to the NVM using the flash access registers.
2311 * Goes through a retry algorithm before giving up.
2313 static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
2314 u32 offset, u8 byte)
2317 u16 program_retries;
2319 ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
2323 for (program_retries = 0; program_retries < 100; program_retries++) {
2324 e_dbg("Retrying Byte %2.2X at offset %u\n", byte, offset);
2326 ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
2330 if (program_retries == 100)
2331 return -E1000_ERR_NVM;
2337 * e1000_erase_flash_bank_ich8lan - Erase a bank (4k) from NVM
2338 * @hw: pointer to the HW structure
2339 * @bank: 0 for first bank, 1 for second bank, etc.
2341 * Erases the bank specified. Each bank is a 4k block. Banks are 0 based.
2342 * bank N is 4096 * N + flash_reg_addr.
2344 static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank)
2346 struct e1000_nvm_info *nvm = &hw->nvm;
2347 union ich8_hws_flash_status hsfsts;
2348 union ich8_hws_flash_ctrl hsflctl;
2349 u32 flash_linear_addr;
2350 /* bank size is in 16bit words - adjust to bytes */
2351 u32 flash_bank_size = nvm->flash_bank_size * 2;
2358 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2361 * Determine HW Sector size: Read BERASE bits of hw flash status
2363 * 00: The Hw sector is 256 bytes, hence we need to erase 16
2364 * consecutive sectors. The start index for the nth Hw sector
2365 * can be calculated as = bank * 4096 + n * 256
2366 * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector.
2367 * The start index for the nth Hw sector can be calculated
2369 * 10: The Hw sector is 8K bytes, nth sector = bank * 8192
2370 * (ich9 only, otherwise error condition)
2371 * 11: The Hw sector is 64K bytes, nth sector = bank * 65536
2373 switch (hsfsts.hsf_status.berasesz) {
2375 /* Hw sector size 256 */
2376 sector_size = ICH_FLASH_SEG_SIZE_256;
2377 iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_256;
2380 sector_size = ICH_FLASH_SEG_SIZE_4K;
2384 sector_size = ICH_FLASH_SEG_SIZE_8K;
2388 sector_size = ICH_FLASH_SEG_SIZE_64K;
2392 return -E1000_ERR_NVM;
2395 /* Start with the base address, then add the sector offset. */
2396 flash_linear_addr = hw->nvm.flash_base_addr;
2397 flash_linear_addr += (bank) ? flash_bank_size : 0;
2399 for (j = 0; j < iteration ; j++) {
2402 ret_val = e1000_flash_cycle_init_ich8lan(hw);
2407 * Write a value 11 (block Erase) in Flash
2408 * Cycle field in hw flash control
2410 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
2411 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE;
2412 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
2415 * Write the last 24 bits of an index within the
2416 * block into Flash Linear address field in Flash
2419 flash_linear_addr += (j * sector_size);
2420 ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
2422 ret_val = e1000_flash_cycle_ich8lan(hw,
2423 ICH_FLASH_ERASE_COMMAND_TIMEOUT);
2428 * Check if FCERR is set to 1. If 1,
2429 * clear it and try the whole sequence
2430 * a few more times else Done
2432 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2433 if (hsfsts.hsf_status.flcerr == 1)
2434 /* repeat for some time before giving up */
2436 else if (hsfsts.hsf_status.flcdone == 0)
2438 } while (++count < ICH_FLASH_CYCLE_REPEAT_COUNT);
2445 * e1000_valid_led_default_ich8lan - Set the default LED settings
2446 * @hw: pointer to the HW structure
2447 * @data: Pointer to the LED settings
2449 * Reads the LED default settings from the NVM to data. If the NVM LED
2450 * settings is all 0's or F's, set the LED default to a valid LED default
2453 static s32 e1000_valid_led_default_ich8lan(struct e1000_hw *hw, u16 *data)
2457 ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
2459 e_dbg("NVM Read Error\n");
2463 if (*data == ID_LED_RESERVED_0000 ||
2464 *data == ID_LED_RESERVED_FFFF)
2465 *data = ID_LED_DEFAULT_ICH8LAN;
2471 * e1000_id_led_init_pchlan - store LED configurations
2472 * @hw: pointer to the HW structure
2474 * PCH does not control LEDs via the LEDCTL register, rather it uses
2475 * the PHY LED configuration register.
2477 * PCH also does not have an "always on" or "always off" mode which
2478 * complicates the ID feature. Instead of using the "on" mode to indicate
2479 * in ledctl_mode2 the LEDs to use for ID (see e1000e_id_led_init()),
2480 * use "link_up" mode. The LEDs will still ID on request if there is no
2481 * link based on logic in e1000_led_[on|off]_pchlan().
2483 static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw)
2485 struct e1000_mac_info *mac = &hw->mac;
2487 const u32 ledctl_on = E1000_LEDCTL_MODE_LINK_UP;
2488 const u32 ledctl_off = E1000_LEDCTL_MODE_LINK_UP | E1000_PHY_LED0_IVRT;
2489 u16 data, i, temp, shift;
2491 /* Get default ID LED modes */
2492 ret_val = hw->nvm.ops.valid_led_default(hw, &data);
2496 mac->ledctl_default = er32(LEDCTL);
2497 mac->ledctl_mode1 = mac->ledctl_default;
2498 mac->ledctl_mode2 = mac->ledctl_default;
2500 for (i = 0; i < 4; i++) {
2501 temp = (data >> (i << 2)) & E1000_LEDCTL_LED0_MODE_MASK;
2504 case ID_LED_ON1_DEF2:
2505 case ID_LED_ON1_ON2:
2506 case ID_LED_ON1_OFF2:
2507 mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
2508 mac->ledctl_mode1 |= (ledctl_on << shift);
2510 case ID_LED_OFF1_DEF2:
2511 case ID_LED_OFF1_ON2:
2512 case ID_LED_OFF1_OFF2:
2513 mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
2514 mac->ledctl_mode1 |= (ledctl_off << shift);
2521 case ID_LED_DEF1_ON2:
2522 case ID_LED_ON1_ON2:
2523 case ID_LED_OFF1_ON2:
2524 mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
2525 mac->ledctl_mode2 |= (ledctl_on << shift);
2527 case ID_LED_DEF1_OFF2:
2528 case ID_LED_ON1_OFF2:
2529 case ID_LED_OFF1_OFF2:
2530 mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
2531 mac->ledctl_mode2 |= (ledctl_off << shift);
2544 * e1000_get_bus_info_ich8lan - Get/Set the bus type and width
2545 * @hw: pointer to the HW structure
2547 * ICH8 use the PCI Express bus, but does not contain a PCI Express Capability
2548 * register, so the the bus width is hard coded.
2550 static s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw)
2552 struct e1000_bus_info *bus = &hw->bus;
2555 ret_val = e1000e_get_bus_info_pcie(hw);
2558 * ICH devices are "PCI Express"-ish. They have
2559 * a configuration space, but do not contain
2560 * PCI Express Capability registers, so bus width
2561 * must be hardcoded.
2563 if (bus->width == e1000_bus_width_unknown)
2564 bus->width = e1000_bus_width_pcie_x1;
2570 * e1000_reset_hw_ich8lan - Reset the hardware
2571 * @hw: pointer to the HW structure
2573 * Does a full reset of the hardware which includes a reset of the PHY and
2576 static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
2578 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
2584 * Prevent the PCI-E bus from sticking if there is no TLP connection
2585 * on the last TLP read/write transaction when MAC is reset.
2587 ret_val = e1000e_disable_pcie_master(hw);
2589 e_dbg("PCI-E Master disable polling has failed.\n");
2592 e_dbg("Masking off all interrupts\n");
2593 ew32(IMC, 0xffffffff);
2596 * Disable the Transmit and Receive units. Then delay to allow
2597 * any pending transactions to complete before we hit the MAC
2598 * with the global reset.
2601 ew32(TCTL, E1000_TCTL_PSP);
2606 /* Workaround for ICH8 bit corruption issue in FIFO memory */
2607 if (hw->mac.type == e1000_ich8lan) {
2608 /* Set Tx and Rx buffer allocation to 8k apiece. */
2609 ew32(PBA, E1000_PBA_8K);
2610 /* Set Packet Buffer Size to 16k. */
2611 ew32(PBS, E1000_PBS_16K);
2614 if (hw->mac.type == e1000_pchlan) {
2615 /* Save the NVM K1 bit setting*/
2616 ret_val = e1000_read_nvm(hw, E1000_NVM_K1_CONFIG, 1, ®);
2620 if (reg & E1000_NVM_K1_ENABLE)
2621 dev_spec->nvm_k1_enabled = true;
2623 dev_spec->nvm_k1_enabled = false;
2628 if (!e1000_check_reset_block(hw)) {
2629 /* Clear PHY Reset Asserted bit */
2630 if (hw->mac.type >= e1000_pchlan) {
2631 u32 status = er32(STATUS);
2632 ew32(STATUS, status & ~E1000_STATUS_PHYRA);
2636 * PHY HW reset requires MAC CORE reset at the same
2637 * time to make sure the interface between MAC and the
2638 * external PHY is reset.
2640 ctrl |= E1000_CTRL_PHY_RST;
2642 ret_val = e1000_acquire_swflag_ich8lan(hw);
2643 /* Whether or not the swflag was acquired, we need to reset the part */
2644 e_dbg("Issuing a global reset to ich8lan\n");
2645 ew32(CTRL, (ctrl | E1000_CTRL_RST));
2649 e1000_release_swflag_ich8lan(hw);
2651 if (ctrl & E1000_CTRL_PHY_RST)
2652 ret_val = hw->phy.ops.get_cfg_done(hw);
2654 if (hw->mac.type >= e1000_ich10lan) {
2655 e1000_lan_init_done_ich8lan(hw);
2657 ret_val = e1000e_get_auto_rd_done(hw);
2660 * When auto config read does not complete, do not
2661 * return with an error. This can happen in situations
2662 * where there is no eeprom and prevents getting link.
2664 e_dbg("Auto Read Done did not complete\n");
2667 /* Dummy read to clear the phy wakeup bit after lcd reset */
2668 if (hw->mac.type == e1000_pchlan)
2669 e1e_rphy(hw, BM_WUC, ®);
2671 ret_val = e1000_sw_lcd_config_ich8lan(hw);
2675 if (hw->mac.type == e1000_pchlan) {
2676 ret_val = e1000_oem_bits_config_ich8lan(hw, true);
2681 * For PCH, this write will make sure that any noise
2682 * will be detected as a CRC error and be dropped rather than show up
2683 * as a bad packet to the DMA engine.
2685 if (hw->mac.type == e1000_pchlan)
2686 ew32(CRC_OFFSET, 0x65656565);
2688 ew32(IMC, 0xffffffff);
2691 kab = er32(KABGTXD);
2692 kab |= E1000_KABGTXD_BGSQLBIAS;
2695 if (hw->mac.type == e1000_pchlan)
2696 ret_val = e1000_hv_phy_workarounds_ich8lan(hw);
2703 * e1000_init_hw_ich8lan - Initialize the hardware
2704 * @hw: pointer to the HW structure
2706 * Prepares the hardware for transmit and receive by doing the following:
2707 * - initialize hardware bits
2708 * - initialize LED identification
2709 * - setup receive address registers
2710 * - setup flow control
2711 * - setup transmit descriptors
2712 * - clear statistics
2714 static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw)
2716 struct e1000_mac_info *mac = &hw->mac;
2717 u32 ctrl_ext, txdctl, snoop;
2721 e1000_initialize_hw_bits_ich8lan(hw);
2723 /* Initialize identification LED */
2724 ret_val = mac->ops.id_led_init(hw);
2726 e_dbg("Error initializing identification LED\n");
2730 /* Setup the receive address. */
2731 e1000e_init_rx_addrs(hw, mac->rar_entry_count);
2733 /* Zero out the Multicast HASH table */
2734 e_dbg("Zeroing the MTA\n");
2735 for (i = 0; i < mac->mta_reg_count; i++)
2736 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
2739 * The 82578 Rx buffer will stall if wakeup is enabled in host and
2740 * the ME. Reading the BM_WUC register will clear the host wakeup bit.
2741 * Reset the phy after disabling host wakeup to reset the Rx buffer.
2743 if (hw->phy.type == e1000_phy_82578) {
2744 hw->phy.ops.read_reg(hw, BM_WUC, &i);
2745 ret_val = e1000_phy_hw_reset_ich8lan(hw);
2750 /* Setup link and flow control */
2751 ret_val = e1000_setup_link_ich8lan(hw);
2753 /* Set the transmit descriptor write-back policy for both queues */
2754 txdctl = er32(TXDCTL(0));
2755 txdctl = (txdctl & ~E1000_TXDCTL_WTHRESH) |
2756 E1000_TXDCTL_FULL_TX_DESC_WB;
2757 txdctl = (txdctl & ~E1000_TXDCTL_PTHRESH) |
2758 E1000_TXDCTL_MAX_TX_DESC_PREFETCH;
2759 ew32(TXDCTL(0), txdctl);
2760 txdctl = er32(TXDCTL(1));
2761 txdctl = (txdctl & ~E1000_TXDCTL_WTHRESH) |
2762 E1000_TXDCTL_FULL_TX_DESC_WB;
2763 txdctl = (txdctl & ~E1000_TXDCTL_PTHRESH) |
2764 E1000_TXDCTL_MAX_TX_DESC_PREFETCH;
2765 ew32(TXDCTL(1), txdctl);
2768 * ICH8 has opposite polarity of no_snoop bits.
2769 * By default, we should use snoop behavior.
2771 if (mac->type == e1000_ich8lan)
2772 snoop = PCIE_ICH8_SNOOP_ALL;
2774 snoop = (u32) ~(PCIE_NO_SNOOP_ALL);
2775 e1000e_set_pcie_no_snoop(hw, snoop);
2777 ctrl_ext = er32(CTRL_EXT);
2778 ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
2779 ew32(CTRL_EXT, ctrl_ext);
2782 * Clear all of the statistics registers (clear on read). It is
2783 * important that we do this after we have tried to establish link
2784 * because the symbol error count will increment wildly if there
2787 e1000_clear_hw_cntrs_ich8lan(hw);
2792 * e1000_initialize_hw_bits_ich8lan - Initialize required hardware bits
2793 * @hw: pointer to the HW structure
2795 * Sets/Clears required hardware bits necessary for correctly setting up the
2796 * hardware for transmit and receive.
2798 static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw)
2802 /* Extended Device Control */
2803 reg = er32(CTRL_EXT);
2805 /* Enable PHY low-power state when MAC is at D3 w/o WoL */
2806 if (hw->mac.type >= e1000_pchlan)
2807 reg |= E1000_CTRL_EXT_PHYPDEN;
2808 ew32(CTRL_EXT, reg);
2810 /* Transmit Descriptor Control 0 */
2811 reg = er32(TXDCTL(0));
2813 ew32(TXDCTL(0), reg);
2815 /* Transmit Descriptor Control 1 */
2816 reg = er32(TXDCTL(1));
2818 ew32(TXDCTL(1), reg);
2820 /* Transmit Arbitration Control 0 */
2821 reg = er32(TARC(0));
2822 if (hw->mac.type == e1000_ich8lan)
2823 reg |= (1 << 28) | (1 << 29);
2824 reg |= (1 << 23) | (1 << 24) | (1 << 26) | (1 << 27);
2827 /* Transmit Arbitration Control 1 */
2828 reg = er32(TARC(1));
2829 if (er32(TCTL) & E1000_TCTL_MULR)
2833 reg |= (1 << 24) | (1 << 26) | (1 << 30);
2837 if (hw->mac.type == e1000_ich8lan) {
2845 * e1000_setup_link_ich8lan - Setup flow control and link settings
2846 * @hw: pointer to the HW structure
2848 * Determines which flow control settings to use, then configures flow
2849 * control. Calls the appropriate media-specific link configuration
2850 * function. Assuming the adapter has a valid link partner, a valid link
2851 * should be established. Assumes the hardware has previously been reset
2852 * and the transmitter and receiver are not enabled.
2854 static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw)
2858 if (e1000_check_reset_block(hw))
2862 * ICH parts do not have a word in the NVM to determine
2863 * the default flow control setting, so we explicitly
2866 if (hw->fc.requested_mode == e1000_fc_default) {
2867 /* Workaround h/w hang when Tx flow control enabled */
2868 if (hw->mac.type == e1000_pchlan)
2869 hw->fc.requested_mode = e1000_fc_rx_pause;
2871 hw->fc.requested_mode = e1000_fc_full;
2875 * Save off the requested flow control mode for use later. Depending
2876 * on the link partner's capabilities, we may or may not use this mode.
2878 hw->fc.current_mode = hw->fc.requested_mode;
2880 e_dbg("After fix-ups FlowControl is now = %x\n",
2881 hw->fc.current_mode);
2883 /* Continue to configure the copper link. */
2884 ret_val = e1000_setup_copper_link_ich8lan(hw);
2888 ew32(FCTTV, hw->fc.pause_time);
2889 if ((hw->phy.type == e1000_phy_82578) ||
2890 (hw->phy.type == e1000_phy_82577)) {
2891 ret_val = hw->phy.ops.write_reg(hw,
2892 PHY_REG(BM_PORT_CTRL_PAGE, 27),
2898 return e1000e_set_fc_watermarks(hw);
2902 * e1000_setup_copper_link_ich8lan - Configure MAC/PHY interface
2903 * @hw: pointer to the HW structure
2905 * Configures the kumeran interface to the PHY to wait the appropriate time
2906 * when polling the PHY, then call the generic setup_copper_link to finish
2907 * configuring the copper link.
2909 static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw)
2916 ctrl |= E1000_CTRL_SLU;
2917 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
2921 * Set the mac to wait the maximum time between each iteration
2922 * and increase the max iterations when polling the phy;
2923 * this fixes erroneous timeouts at 10Mbps.
2925 ret_val = e1000e_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF);
2928 ret_val = e1000e_read_kmrn_reg(hw, GG82563_REG(0x34, 9), ®_data);
2932 ret_val = e1000e_write_kmrn_reg(hw, GG82563_REG(0x34, 9), reg_data);
2936 switch (hw->phy.type) {
2937 case e1000_phy_igp_3:
2938 ret_val = e1000e_copper_link_setup_igp(hw);
2943 case e1000_phy_82578:
2944 ret_val = e1000e_copper_link_setup_m88(hw);
2948 case e1000_phy_82577:
2949 ret_val = e1000_copper_link_setup_82577(hw);
2954 ret_val = hw->phy.ops.read_reg(hw, IFE_PHY_MDIX_CONTROL,
2959 reg_data &= ~IFE_PMC_AUTO_MDIX;
2961 switch (hw->phy.mdix) {
2963 reg_data &= ~IFE_PMC_FORCE_MDIX;
2966 reg_data |= IFE_PMC_FORCE_MDIX;
2970 reg_data |= IFE_PMC_AUTO_MDIX;
2973 ret_val = hw->phy.ops.write_reg(hw, IFE_PHY_MDIX_CONTROL,
2981 return e1000e_setup_copper_link(hw);
2985 * e1000_get_link_up_info_ich8lan - Get current link speed and duplex
2986 * @hw: pointer to the HW structure
2987 * @speed: pointer to store current link speed
2988 * @duplex: pointer to store the current link duplex
2990 * Calls the generic get_speed_and_duplex to retrieve the current link
2991 * information and then calls the Kumeran lock loss workaround for links at
2994 static s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw, u16 *speed,
2999 ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex);
3003 if ((hw->mac.type == e1000_ich8lan) &&
3004 (hw->phy.type == e1000_phy_igp_3) &&
3005 (*speed == SPEED_1000)) {
3006 ret_val = e1000_kmrn_lock_loss_workaround_ich8lan(hw);
3013 * e1000_kmrn_lock_loss_workaround_ich8lan - Kumeran workaround
3014 * @hw: pointer to the HW structure
3016 * Work-around for 82566 Kumeran PCS lock loss:
3017 * On link status change (i.e. PCI reset, speed change) and link is up and
3019 * 0) if workaround is optionally disabled do nothing
3020 * 1) wait 1ms for Kumeran link to come up
3021 * 2) check Kumeran Diagnostic register PCS lock loss bit
3022 * 3) if not set the link is locked (all is good), otherwise...
3024 * 5) repeat up to 10 times
3025 * Note: this is only called for IGP3 copper when speed is 1gb.
3027 static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw)
3029 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3035 if (!dev_spec->kmrn_lock_loss_workaround_enabled)
3039 * Make sure link is up before proceeding. If not just return.
3040 * Attempting this while link is negotiating fouled up link
3043 ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
3047 for (i = 0; i < 10; i++) {
3048 /* read once to clear */
3049 ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data);
3052 /* and again to get new status */
3053 ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data);
3057 /* check for PCS lock */
3058 if (!(data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS))
3061 /* Issue PHY reset */
3062 e1000_phy_hw_reset(hw);
3065 /* Disable GigE link negotiation */
3066 phy_ctrl = er32(PHY_CTRL);
3067 phy_ctrl |= (E1000_PHY_CTRL_GBE_DISABLE |
3068 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
3069 ew32(PHY_CTRL, phy_ctrl);
3072 * Call gig speed drop workaround on Gig disable before accessing
3075 e1000e_gig_downshift_workaround_ich8lan(hw);
3077 /* unable to acquire PCS lock */
3078 return -E1000_ERR_PHY;
3082 * e1000_set_kmrn_lock_loss_workaround_ich8lan - Set Kumeran workaround state
3083 * @hw: pointer to the HW structure
3084 * @state: boolean value used to set the current Kumeran workaround state
3086 * If ICH8, set the current Kumeran workaround state (enabled - TRUE
3087 * /disabled - FALSE).
3089 void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
3092 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3094 if (hw->mac.type != e1000_ich8lan) {
3095 e_dbg("Workaround applies to ICH8 only.\n");
3099 dev_spec->kmrn_lock_loss_workaround_enabled = state;
3103 * e1000_ipg3_phy_powerdown_workaround_ich8lan - Power down workaround on D3
3104 * @hw: pointer to the HW structure
3106 * Workaround for 82566 power-down on D3 entry:
3107 * 1) disable gigabit link
3108 * 2) write VR power-down enable
3110 * Continue if successful, else issue LCD reset and repeat
3112 void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw)
3118 if (hw->phy.type != e1000_phy_igp_3)
3121 /* Try the workaround twice (if needed) */
3124 reg = er32(PHY_CTRL);
3125 reg |= (E1000_PHY_CTRL_GBE_DISABLE |
3126 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
3127 ew32(PHY_CTRL, reg);
3130 * Call gig speed drop workaround on Gig disable before
3131 * accessing any PHY registers
3133 if (hw->mac.type == e1000_ich8lan)
3134 e1000e_gig_downshift_workaround_ich8lan(hw);
3136 /* Write VR power-down enable */
3137 e1e_rphy(hw, IGP3_VR_CTRL, &data);
3138 data &= ~IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
3139 e1e_wphy(hw, IGP3_VR_CTRL, data | IGP3_VR_CTRL_MODE_SHUTDOWN);
3141 /* Read it back and test */
3142 e1e_rphy(hw, IGP3_VR_CTRL, &data);
3143 data &= IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
3144 if ((data == IGP3_VR_CTRL_MODE_SHUTDOWN) || retry)
3147 /* Issue PHY reset and repeat at most one more time */
3149 ew32(CTRL, reg | E1000_CTRL_PHY_RST);
3155 * e1000e_gig_downshift_workaround_ich8lan - WoL from S5 stops working
3156 * @hw: pointer to the HW structure
3158 * Steps to take when dropping from 1Gb/s (eg. link cable removal (LSC),
3159 * LPLU, Gig disable, MDIC PHY reset):
3160 * 1) Set Kumeran Near-end loopback
3161 * 2) Clear Kumeran Near-end loopback
3162 * Should only be called for ICH8[m] devices with IGP_3 Phy.
3164 void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
3169 if ((hw->mac.type != e1000_ich8lan) ||
3170 (hw->phy.type != e1000_phy_igp_3))
3173 ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
3177 reg_data |= E1000_KMRNCTRLSTA_DIAG_NELPBK;
3178 ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
3182 reg_data &= ~E1000_KMRNCTRLSTA_DIAG_NELPBK;
3183 ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
3188 * e1000e_disable_gig_wol_ich8lan - disable gig during WoL
3189 * @hw: pointer to the HW structure
3191 * During S0 to Sx transition, it is possible the link remains at gig
3192 * instead of negotiating to a lower speed. Before going to Sx, set
3193 * 'LPLU Enabled' and 'Gig Disable' to force link speed negotiation
3196 * Should only be called for applicable parts.
3198 void e1000e_disable_gig_wol_ich8lan(struct e1000_hw *hw)
3202 switch (hw->mac.type) {
3204 case e1000_ich10lan:
3206 phy_ctrl = er32(PHY_CTRL);
3207 phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU |
3208 E1000_PHY_CTRL_GBE_DISABLE;
3209 ew32(PHY_CTRL, phy_ctrl);
3211 if (hw->mac.type == e1000_pchlan)
3212 e1000_phy_hw_reset_ich8lan(hw);
3221 * e1000_cleanup_led_ich8lan - Restore the default LED operation
3222 * @hw: pointer to the HW structure
3224 * Return the LED back to the default configuration.
3226 static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw)
3228 if (hw->phy.type == e1000_phy_ife)
3229 return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
3231 ew32(LEDCTL, hw->mac.ledctl_default);
3236 * e1000_led_on_ich8lan - Turn LEDs on
3237 * @hw: pointer to the HW structure
3241 static s32 e1000_led_on_ich8lan(struct e1000_hw *hw)
3243 if (hw->phy.type == e1000_phy_ife)
3244 return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED,
3245 (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON));
3247 ew32(LEDCTL, hw->mac.ledctl_mode2);
3252 * e1000_led_off_ich8lan - Turn LEDs off
3253 * @hw: pointer to the HW structure
3255 * Turn off the LEDs.
3257 static s32 e1000_led_off_ich8lan(struct e1000_hw *hw)
3259 if (hw->phy.type == e1000_phy_ife)
3260 return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED,
3261 (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_OFF));
3263 ew32(LEDCTL, hw->mac.ledctl_mode1);
3268 * e1000_setup_led_pchlan - Configures SW controllable LED
3269 * @hw: pointer to the HW structure
3271 * This prepares the SW controllable LED for use.
3273 static s32 e1000_setup_led_pchlan(struct e1000_hw *hw)
3275 return hw->phy.ops.write_reg(hw, HV_LED_CONFIG,
3276 (u16)hw->mac.ledctl_mode1);
3280 * e1000_cleanup_led_pchlan - Restore the default LED operation
3281 * @hw: pointer to the HW structure
3283 * Return the LED back to the default configuration.
3285 static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw)
3287 return hw->phy.ops.write_reg(hw, HV_LED_CONFIG,
3288 (u16)hw->mac.ledctl_default);
3292 * e1000_led_on_pchlan - Turn LEDs on
3293 * @hw: pointer to the HW structure
3297 static s32 e1000_led_on_pchlan(struct e1000_hw *hw)
3299 u16 data = (u16)hw->mac.ledctl_mode2;
3303 * If no link, then turn LED on by setting the invert bit
3304 * for each LED that's mode is "link_up" in ledctl_mode2.
3306 if (!(er32(STATUS) & E1000_STATUS_LU)) {
3307 for (i = 0; i < 3; i++) {
3308 led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
3309 if ((led & E1000_PHY_LED0_MODE_MASK) !=
3310 E1000_LEDCTL_MODE_LINK_UP)
3312 if (led & E1000_PHY_LED0_IVRT)
3313 data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
3315 data |= (E1000_PHY_LED0_IVRT << (i * 5));
3319 return hw->phy.ops.write_reg(hw, HV_LED_CONFIG, data);
3323 * e1000_led_off_pchlan - Turn LEDs off
3324 * @hw: pointer to the HW structure
3326 * Turn off the LEDs.
3328 static s32 e1000_led_off_pchlan(struct e1000_hw *hw)
3330 u16 data = (u16)hw->mac.ledctl_mode1;
3334 * If no link, then turn LED off by clearing the invert bit
3335 * for each LED that's mode is "link_up" in ledctl_mode1.
3337 if (!(er32(STATUS) & E1000_STATUS_LU)) {
3338 for (i = 0; i < 3; i++) {
3339 led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
3340 if ((led & E1000_PHY_LED0_MODE_MASK) !=
3341 E1000_LEDCTL_MODE_LINK_UP)
3343 if (led & E1000_PHY_LED0_IVRT)
3344 data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
3346 data |= (E1000_PHY_LED0_IVRT << (i * 5));
3350 return hw->phy.ops.write_reg(hw, HV_LED_CONFIG, data);
3354 * e1000_get_cfg_done_ich8lan - Read config done bit
3355 * @hw: pointer to the HW structure
3357 * Read the management control register for the config done bit for
3358 * completion status. NOTE: silicon which is EEPROM-less will fail trying
3359 * to read the config done bit, so an error is *ONLY* logged and returns
3360 * 0. If we were to return with error, EEPROM-less silicon
3361 * would not be able to be reset or change link.
3363 static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw)
3367 if (hw->mac.type >= e1000_pchlan) {
3368 u32 status = er32(STATUS);
3370 if (status & E1000_STATUS_PHYRA)
3371 ew32(STATUS, status & ~E1000_STATUS_PHYRA);
3373 e_dbg("PHY Reset Asserted not set - needs delay\n");
3376 e1000e_get_cfg_done(hw);
3378 /* If EEPROM is not marked present, init the IGP 3 PHY manually */
3379 if ((hw->mac.type != e1000_ich10lan) &&
3380 (hw->mac.type != e1000_pchlan)) {
3381 if (((er32(EECD) & E1000_EECD_PRES) == 0) &&
3382 (hw->phy.type == e1000_phy_igp_3)) {
3383 e1000e_phy_init_script_igp3(hw);
3386 if (e1000_valid_nvm_bank_detect_ich8lan(hw, &bank)) {
3387 /* Maybe we should do a basic PHY config */
3388 e_dbg("EEPROM not present\n");
3389 return -E1000_ERR_CONFIG;
3397 * e1000_clear_hw_cntrs_ich8lan - Clear statistical counters
3398 * @hw: pointer to the HW structure
3400 * Clears hardware counters specific to the silicon family and calls
3401 * clear_hw_cntrs_generic to clear all general purpose counters.
3403 static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw)
3408 e1000e_clear_hw_cntrs_base(hw);
3410 temp = er32(ALGNERRC);
3411 temp = er32(RXERRC);
3413 temp = er32(CEXTERR);
3415 temp = er32(TSCTFC);
3417 temp = er32(MGTPRC);
3418 temp = er32(MGTPDC);
3419 temp = er32(MGTPTC);
3422 temp = er32(ICRXOC);
3424 /* Clear PHY statistics registers */
3425 if ((hw->phy.type == e1000_phy_82578) ||
3426 (hw->phy.type == e1000_phy_82577)) {
3427 hw->phy.ops.read_reg(hw, HV_SCC_UPPER, &phy_data);
3428 hw->phy.ops.read_reg(hw, HV_SCC_LOWER, &phy_data);
3429 hw->phy.ops.read_reg(hw, HV_ECOL_UPPER, &phy_data);
3430 hw->phy.ops.read_reg(hw, HV_ECOL_LOWER, &phy_data);
3431 hw->phy.ops.read_reg(hw, HV_MCC_UPPER, &phy_data);
3432 hw->phy.ops.read_reg(hw, HV_MCC_LOWER, &phy_data);
3433 hw->phy.ops.read_reg(hw, HV_LATECOL_UPPER, &phy_data);
3434 hw->phy.ops.read_reg(hw, HV_LATECOL_LOWER, &phy_data);
3435 hw->phy.ops.read_reg(hw, HV_COLC_UPPER, &phy_data);
3436 hw->phy.ops.read_reg(hw, HV_COLC_LOWER, &phy_data);
3437 hw->phy.ops.read_reg(hw, HV_DC_UPPER, &phy_data);
3438 hw->phy.ops.read_reg(hw, HV_DC_LOWER, &phy_data);
3439 hw->phy.ops.read_reg(hw, HV_TNCRS_UPPER, &phy_data);
3440 hw->phy.ops.read_reg(hw, HV_TNCRS_LOWER, &phy_data);
3444 static struct e1000_mac_operations ich8_mac_ops = {
3445 .id_led_init = e1000e_id_led_init,
3446 .check_mng_mode = e1000_check_mng_mode_ich8lan,
3447 .check_for_link = e1000_check_for_copper_link_ich8lan,
3448 /* cleanup_led dependent on mac type */
3449 .clear_hw_cntrs = e1000_clear_hw_cntrs_ich8lan,
3450 .get_bus_info = e1000_get_bus_info_ich8lan,
3451 .get_link_up_info = e1000_get_link_up_info_ich8lan,
3452 /* led_on dependent on mac type */
3453 /* led_off dependent on mac type */
3454 .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
3455 .reset_hw = e1000_reset_hw_ich8lan,
3456 .init_hw = e1000_init_hw_ich8lan,
3457 .setup_link = e1000_setup_link_ich8lan,
3458 .setup_physical_interface= e1000_setup_copper_link_ich8lan,
3459 /* id_led_init dependent on mac type */
3462 static struct e1000_phy_operations ich8_phy_ops = {
3463 .acquire = e1000_acquire_swflag_ich8lan,
3464 .check_reset_block = e1000_check_reset_block_ich8lan,
3466 .force_speed_duplex = e1000_phy_force_speed_duplex_ich8lan,
3467 .get_cfg_done = e1000_get_cfg_done_ich8lan,
3468 .get_cable_length = e1000e_get_cable_length_igp_2,
3469 .get_info = e1000_get_phy_info_ich8lan,
3470 .read_reg = e1000e_read_phy_reg_igp,
3471 .release = e1000_release_swflag_ich8lan,
3472 .reset = e1000_phy_hw_reset_ich8lan,
3473 .set_d0_lplu_state = e1000_set_d0_lplu_state_ich8lan,
3474 .set_d3_lplu_state = e1000_set_d3_lplu_state_ich8lan,
3475 .write_reg = e1000e_write_phy_reg_igp,
3478 static struct e1000_nvm_operations ich8_nvm_ops = {
3479 .acquire = e1000_acquire_nvm_ich8lan,
3480 .read = e1000_read_nvm_ich8lan,
3481 .release = e1000_release_nvm_ich8lan,
3482 .update = e1000_update_nvm_checksum_ich8lan,
3483 .valid_led_default = e1000_valid_led_default_ich8lan,
3484 .validate = e1000_validate_nvm_checksum_ich8lan,
3485 .write = e1000_write_nvm_ich8lan,
3488 struct e1000_info e1000_ich8_info = {
3489 .mac = e1000_ich8lan,
3490 .flags = FLAG_HAS_WOL
3492 | FLAG_RX_CSUM_ENABLED
3493 | FLAG_HAS_CTRLEXT_ON_LOAD
3498 .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN,
3499 .get_variants = e1000_get_variants_ich8lan,
3500 .mac_ops = &ich8_mac_ops,
3501 .phy_ops = &ich8_phy_ops,
3502 .nvm_ops = &ich8_nvm_ops,
3505 struct e1000_info e1000_ich9_info = {
3506 .mac = e1000_ich9lan,
3507 .flags = FLAG_HAS_JUMBO_FRAMES
3510 | FLAG_RX_CSUM_ENABLED
3511 | FLAG_HAS_CTRLEXT_ON_LOAD
3517 .max_hw_frame_size = DEFAULT_JUMBO,
3518 .get_variants = e1000_get_variants_ich8lan,
3519 .mac_ops = &ich8_mac_ops,
3520 .phy_ops = &ich8_phy_ops,
3521 .nvm_ops = &ich8_nvm_ops,
3524 struct e1000_info e1000_ich10_info = {
3525 .mac = e1000_ich10lan,
3526 .flags = FLAG_HAS_JUMBO_FRAMES
3529 | FLAG_RX_CSUM_ENABLED
3530 | FLAG_HAS_CTRLEXT_ON_LOAD
3536 .max_hw_frame_size = DEFAULT_JUMBO,
3537 .get_variants = e1000_get_variants_ich8lan,
3538 .mac_ops = &ich8_mac_ops,
3539 .phy_ops = &ich8_phy_ops,
3540 .nvm_ops = &ich8_nvm_ops,
3543 struct e1000_info e1000_pch_info = {
3544 .mac = e1000_pchlan,
3545 .flags = FLAG_IS_ICH
3547 | FLAG_RX_CSUM_ENABLED
3548 | FLAG_HAS_CTRLEXT_ON_LOAD
3551 | FLAG_HAS_JUMBO_FRAMES
3554 .max_hw_frame_size = 4096,
3555 .get_variants = e1000_get_variants_ich8lan,
3556 .mac_ops = &ich8_mac_ops,
3557 .phy_ops = &ich8_phy_ops,
3558 .nvm_ops = &ich8_nvm_ops,