1 /*******************************************************************************
3 Intel PRO/1000 Linux driver
4 Copyright(c) 1999 - 2012 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
55 * 82579LM Gigabit Network Connection
56 * 82579V Gigabit Network Connection
61 #define ICH_FLASH_GFPREG 0x0000
62 #define ICH_FLASH_HSFSTS 0x0004
63 #define ICH_FLASH_HSFCTL 0x0006
64 #define ICH_FLASH_FADDR 0x0008
65 #define ICH_FLASH_FDATA0 0x0010
66 #define ICH_FLASH_PR0 0x0074
68 #define ICH_FLASH_READ_COMMAND_TIMEOUT 500
69 #define ICH_FLASH_WRITE_COMMAND_TIMEOUT 500
70 #define ICH_FLASH_ERASE_COMMAND_TIMEOUT 3000000
71 #define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF
72 #define ICH_FLASH_CYCLE_REPEAT_COUNT 10
74 #define ICH_CYCLE_READ 0
75 #define ICH_CYCLE_WRITE 2
76 #define ICH_CYCLE_ERASE 3
78 #define FLASH_GFPREG_BASE_MASK 0x1FFF
79 #define FLASH_SECTOR_ADDR_SHIFT 12
81 #define ICH_FLASH_SEG_SIZE_256 256
82 #define ICH_FLASH_SEG_SIZE_4K 4096
83 #define ICH_FLASH_SEG_SIZE_8K 8192
84 #define ICH_FLASH_SEG_SIZE_64K 65536
87 #define E1000_ICH_FWSM_RSPCIPHY 0x00000040 /* Reset PHY on PCI Reset */
88 /* FW established a valid mode */
89 #define E1000_ICH_FWSM_FW_VALID 0x00008000
91 #define E1000_ICH_MNG_IAMT_MODE 0x2
93 #define ID_LED_DEFAULT_ICH8LAN ((ID_LED_DEF1_DEF2 << 12) | \
94 (ID_LED_DEF1_OFF2 << 8) | \
95 (ID_LED_DEF1_ON2 << 4) | \
98 #define E1000_ICH_NVM_SIG_WORD 0x13
99 #define E1000_ICH_NVM_SIG_MASK 0xC000
100 #define E1000_ICH_NVM_VALID_SIG_MASK 0xC0
101 #define E1000_ICH_NVM_SIG_VALUE 0x80
103 #define E1000_ICH8_LAN_INIT_TIMEOUT 1500
105 #define E1000_FEXTNVM_SW_CONFIG 1
106 #define E1000_FEXTNVM_SW_CONFIG_ICH8M (1 << 27) /* Bit redefined for ICH8M :/ */
108 #define E1000_FEXTNVM4_BEACON_DURATION_MASK 0x7
109 #define E1000_FEXTNVM4_BEACON_DURATION_8USEC 0x7
110 #define E1000_FEXTNVM4_BEACON_DURATION_16USEC 0x3
112 #define PCIE_ICH8_SNOOP_ALL PCIE_NO_SNOOP_ALL
114 #define E1000_ICH_RAR_ENTRIES 7
116 #define PHY_PAGE_SHIFT 5
117 #define PHY_REG(page, reg) (((page) << PHY_PAGE_SHIFT) | \
118 ((reg) & MAX_PHY_REG_ADDRESS))
119 #define IGP3_KMRN_DIAG PHY_REG(770, 19) /* KMRN Diagnostic */
120 #define IGP3_VR_CTRL PHY_REG(776, 18) /* Voltage Regulator Control */
122 #define IGP3_KMRN_DIAG_PCS_LOCK_LOSS 0x0002
123 #define IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK 0x0300
124 #define IGP3_VR_CTRL_MODE_SHUTDOWN 0x0200
126 #define HV_LED_CONFIG PHY_REG(768, 30) /* LED Configuration */
128 #define SW_FLAG_TIMEOUT 1000 /* SW Semaphore flag timeout in milliseconds */
130 /* SMBus Address Phy Register */
131 #define HV_SMB_ADDR PHY_REG(768, 26)
132 #define HV_SMB_ADDR_MASK 0x007F
133 #define HV_SMB_ADDR_PEC_EN 0x0200
134 #define HV_SMB_ADDR_VALID 0x0080
136 /* PHY Power Management Control */
137 #define HV_PM_CTRL PHY_REG(770, 17)
139 /* PHY Low Power Idle Control */
140 #define I82579_LPI_CTRL PHY_REG(772, 20)
141 #define I82579_LPI_CTRL_ENABLE_MASK 0x6000
142 #define I82579_LPI_CTRL_FORCE_PLL_LOCK_COUNT 0x80
145 #define I82579_EMI_ADDR 0x10
146 #define I82579_EMI_DATA 0x11
147 #define I82579_LPI_UPDATE_TIMER 0x4805 /* in 40ns units + 40 ns base value */
148 #define I82579_MSE_THRESHOLD 0x084F /* Mean Square Error Threshold */
149 #define I82579_MSE_LINK_DOWN 0x2411 /* MSE count before dropping link */
151 /* Strapping Option Register - RO */
152 #define E1000_STRAP 0x0000C
153 #define E1000_STRAP_SMBUS_ADDRESS_MASK 0x00FE0000
154 #define E1000_STRAP_SMBUS_ADDRESS_SHIFT 17
156 /* OEM Bits Phy Register */
157 #define HV_OEM_BITS PHY_REG(768, 25)
158 #define HV_OEM_BITS_LPLU 0x0004 /* Low Power Link Up */
159 #define HV_OEM_BITS_GBE_DIS 0x0040 /* Gigabit Disable */
160 #define HV_OEM_BITS_RESTART_AN 0x0400 /* Restart Auto-negotiation */
162 #define E1000_NVM_K1_CONFIG 0x1B /* NVM K1 Config Word */
163 #define E1000_NVM_K1_ENABLE 0x1 /* NVM Enable K1 bit */
165 /* KMRN Mode Control */
166 #define HV_KMRN_MODE_CTRL PHY_REG(769, 16)
167 #define HV_KMRN_MDIO_SLOW 0x0400
169 /* KMRN FIFO Control and Status */
170 #define HV_KMRN_FIFO_CTRLSTA PHY_REG(770, 16)
171 #define HV_KMRN_FIFO_CTRLSTA_PREAMBLE_MASK 0x7000
172 #define HV_KMRN_FIFO_CTRLSTA_PREAMBLE_SHIFT 12
174 /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */
175 /* Offset 04h HSFSTS */
176 union ich8_hws_flash_status {
178 u16 flcdone :1; /* bit 0 Flash Cycle Done */
179 u16 flcerr :1; /* bit 1 Flash Cycle Error */
180 u16 dael :1; /* bit 2 Direct Access error Log */
181 u16 berasesz :2; /* bit 4:3 Sector Erase Size */
182 u16 flcinprog :1; /* bit 5 flash cycle in Progress */
183 u16 reserved1 :2; /* bit 13:6 Reserved */
184 u16 reserved2 :6; /* bit 13:6 Reserved */
185 u16 fldesvalid :1; /* bit 14 Flash Descriptor Valid */
186 u16 flockdn :1; /* bit 15 Flash Config Lock-Down */
191 /* ICH GbE Flash Hardware Sequencing Flash control Register bit breakdown */
192 /* Offset 06h FLCTL */
193 union ich8_hws_flash_ctrl {
194 struct ich8_hsflctl {
195 u16 flcgo :1; /* 0 Flash Cycle Go */
196 u16 flcycle :2; /* 2:1 Flash Cycle */
197 u16 reserved :5; /* 7:3 Reserved */
198 u16 fldbcount :2; /* 9:8 Flash Data Byte Count */
199 u16 flockdn :6; /* 15:10 Reserved */
204 /* ICH Flash Region Access Permissions */
205 union ich8_hws_flash_regacc {
207 u32 grra :8; /* 0:7 GbE region Read Access */
208 u32 grwa :8; /* 8:15 GbE region Write Access */
209 u32 gmrag :8; /* 23:16 GbE Master Read Access Grant */
210 u32 gmwag :8; /* 31:24 GbE Master Write Access Grant */
215 /* ICH Flash Protected Region */
216 union ich8_flash_protected_range {
218 u32 base:13; /* 0:12 Protected Range Base */
219 u32 reserved1:2; /* 13:14 Reserved */
220 u32 rpe:1; /* 15 Read Protection Enable */
221 u32 limit:13; /* 16:28 Protected Range Limit */
222 u32 reserved2:2; /* 29:30 Reserved */
223 u32 wpe:1; /* 31 Write Protection Enable */
228 static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw);
229 static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw);
230 static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw);
231 static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank);
232 static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
233 u32 offset, u8 byte);
234 static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
236 static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
238 static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
240 static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw);
241 static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw);
242 static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw);
243 static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw);
244 static s32 e1000_led_on_ich8lan(struct e1000_hw *hw);
245 static s32 e1000_led_off_ich8lan(struct e1000_hw *hw);
246 static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw);
247 static s32 e1000_setup_led_pchlan(struct e1000_hw *hw);
248 static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw);
249 static s32 e1000_led_on_pchlan(struct e1000_hw *hw);
250 static s32 e1000_led_off_pchlan(struct e1000_hw *hw);
251 static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active);
252 static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw);
253 static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw);
254 static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link);
255 static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw);
256 static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw);
257 static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw);
258 static s32 e1000_k1_workaround_lv(struct e1000_hw *hw);
259 static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate);
261 static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg)
263 return readw(hw->flash_address + reg);
266 static inline u32 __er32flash(struct e1000_hw *hw, unsigned long reg)
268 return readl(hw->flash_address + reg);
271 static inline void __ew16flash(struct e1000_hw *hw, unsigned long reg, u16 val)
273 writew(val, hw->flash_address + reg);
276 static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val)
278 writel(val, hw->flash_address + reg);
281 #define er16flash(reg) __er16flash(hw, (reg))
282 #define er32flash(reg) __er32flash(hw, (reg))
283 #define ew16flash(reg, val) __ew16flash(hw, (reg), (val))
284 #define ew32flash(reg, val) __ew32flash(hw, (reg), (val))
286 static void e1000_toggle_lanphypc_value_ich8lan(struct e1000_hw *hw)
291 ctrl |= E1000_CTRL_LANPHYPC_OVERRIDE;
292 ctrl &= ~E1000_CTRL_LANPHYPC_VALUE;
296 ctrl &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
301 * e1000_init_phy_params_pchlan - Initialize PHY function pointers
302 * @hw: pointer to the HW structure
304 * Initialize family-specific PHY parameters and function pointers.
306 static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw)
308 struct e1000_phy_info *phy = &hw->phy;
312 phy->reset_delay_us = 100;
314 phy->ops.set_page = e1000_set_page_igp;
315 phy->ops.read_reg = e1000_read_phy_reg_hv;
316 phy->ops.read_reg_locked = e1000_read_phy_reg_hv_locked;
317 phy->ops.read_reg_page = e1000_read_phy_reg_page_hv;
318 phy->ops.set_d0_lplu_state = e1000_set_lplu_state_pchlan;
319 phy->ops.set_d3_lplu_state = e1000_set_lplu_state_pchlan;
320 phy->ops.write_reg = e1000_write_phy_reg_hv;
321 phy->ops.write_reg_locked = e1000_write_phy_reg_hv_locked;
322 phy->ops.write_reg_page = e1000_write_phy_reg_page_hv;
323 phy->ops.power_up = e1000_power_up_phy_copper;
324 phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
325 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
327 if (!hw->phy.ops.check_reset_block(hw)) {
328 u32 fwsm = er32(FWSM);
331 * The MAC-PHY interconnect may still be in SMBus mode after
332 * Sx->S0. If resetting the PHY is not blocked, toggle the
333 * LANPHYPC Value bit to force the interconnect to PCIe mode.
335 e1000_toggle_lanphypc_value_ich8lan(hw);
339 * Gate automatic PHY configuration by hardware on
342 if ((hw->mac.type == e1000_pch2lan) &&
343 !(fwsm & E1000_ICH_FWSM_FW_VALID))
344 e1000_gate_hw_phy_config_ich8lan(hw, true);
347 * Reset the PHY before any access to it. Doing so, ensures
348 * that the PHY is in a known good state before we read/write
349 * PHY registers. The generic reset is sufficient here,
350 * because we haven't determined the PHY type yet.
352 ret_val = e1000e_phy_hw_reset_generic(hw);
356 /* Ungate automatic PHY configuration on non-managed 82579 */
357 if ((hw->mac.type == e1000_pch2lan) &&
358 !(fwsm & E1000_ICH_FWSM_FW_VALID)) {
359 usleep_range(10000, 20000);
360 e1000_gate_hw_phy_config_ich8lan(hw, false);
364 phy->id = e1000_phy_unknown;
365 switch (hw->mac.type) {
367 ret_val = e1000e_get_phy_id(hw);
370 if ((phy->id != 0) && (phy->id != PHY_REVISION_MASK))
375 * In case the PHY needs to be in mdio slow mode,
376 * set slow mode and try to get the PHY id again.
378 ret_val = e1000_set_mdio_slow_mode_hv(hw);
381 ret_val = e1000e_get_phy_id(hw);
386 phy->type = e1000e_get_phy_type_from_id(phy->id);
389 case e1000_phy_82577:
390 case e1000_phy_82579:
391 phy->ops.check_polarity = e1000_check_polarity_82577;
392 phy->ops.force_speed_duplex =
393 e1000_phy_force_speed_duplex_82577;
394 phy->ops.get_cable_length = e1000_get_cable_length_82577;
395 phy->ops.get_info = e1000_get_phy_info_82577;
396 phy->ops.commit = e1000e_phy_sw_reset;
398 case e1000_phy_82578:
399 phy->ops.check_polarity = e1000_check_polarity_m88;
400 phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88;
401 phy->ops.get_cable_length = e1000e_get_cable_length_m88;
402 phy->ops.get_info = e1000e_get_phy_info_m88;
405 ret_val = -E1000_ERR_PHY;
413 * e1000_init_phy_params_ich8lan - Initialize PHY function pointers
414 * @hw: pointer to the HW structure
416 * Initialize family-specific PHY parameters and function pointers.
418 static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw)
420 struct e1000_phy_info *phy = &hw->phy;
425 phy->reset_delay_us = 100;
427 phy->ops.power_up = e1000_power_up_phy_copper;
428 phy->ops.power_down = e1000_power_down_phy_copper_ich8lan;
431 * We may need to do this twice - once for IGP and if that fails,
432 * we'll set BM func pointers and try again
434 ret_val = e1000e_determine_phy_address(hw);
436 phy->ops.write_reg = e1000e_write_phy_reg_bm;
437 phy->ops.read_reg = e1000e_read_phy_reg_bm;
438 ret_val = e1000e_determine_phy_address(hw);
440 e_dbg("Cannot determine PHY addr. Erroring out\n");
446 while ((e1000_phy_unknown == e1000e_get_phy_type_from_id(phy->id)) &&
448 usleep_range(1000, 2000);
449 ret_val = e1000e_get_phy_id(hw);
456 case IGP03E1000_E_PHY_ID:
457 phy->type = e1000_phy_igp_3;
458 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
459 phy->ops.read_reg_locked = e1000e_read_phy_reg_igp_locked;
460 phy->ops.write_reg_locked = e1000e_write_phy_reg_igp_locked;
461 phy->ops.get_info = e1000e_get_phy_info_igp;
462 phy->ops.check_polarity = e1000_check_polarity_igp;
463 phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_igp;
466 case IFE_PLUS_E_PHY_ID:
468 phy->type = e1000_phy_ife;
469 phy->autoneg_mask = E1000_ALL_NOT_GIG;
470 phy->ops.get_info = e1000_get_phy_info_ife;
471 phy->ops.check_polarity = e1000_check_polarity_ife;
472 phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_ife;
474 case BME1000_E_PHY_ID:
475 phy->type = e1000_phy_bm;
476 phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
477 phy->ops.read_reg = e1000e_read_phy_reg_bm;
478 phy->ops.write_reg = e1000e_write_phy_reg_bm;
479 phy->ops.commit = e1000e_phy_sw_reset;
480 phy->ops.get_info = e1000e_get_phy_info_m88;
481 phy->ops.check_polarity = e1000_check_polarity_m88;
482 phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88;
485 return -E1000_ERR_PHY;
493 * e1000_init_nvm_params_ich8lan - Initialize NVM function pointers
494 * @hw: pointer to the HW structure
496 * Initialize family-specific NVM parameters and function
499 static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw)
501 struct e1000_nvm_info *nvm = &hw->nvm;
502 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
503 u32 gfpreg, sector_base_addr, sector_end_addr;
506 /* Can't read flash registers if the register set isn't mapped. */
507 if (!hw->flash_address) {
508 e_dbg("ERROR: Flash registers not mapped\n");
509 return -E1000_ERR_CONFIG;
512 nvm->type = e1000_nvm_flash_sw;
514 gfpreg = er32flash(ICH_FLASH_GFPREG);
517 * sector_X_addr is a "sector"-aligned address (4096 bytes)
518 * Add 1 to sector_end_addr since this sector is included in
521 sector_base_addr = gfpreg & FLASH_GFPREG_BASE_MASK;
522 sector_end_addr = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK) + 1;
524 /* flash_base_addr is byte-aligned */
525 nvm->flash_base_addr = sector_base_addr << FLASH_SECTOR_ADDR_SHIFT;
528 * find total size of the NVM, then cut in half since the total
529 * size represents two separate NVM banks.
531 nvm->flash_bank_size = (sector_end_addr - sector_base_addr)
532 << FLASH_SECTOR_ADDR_SHIFT;
533 nvm->flash_bank_size /= 2;
534 /* Adjust to word count */
535 nvm->flash_bank_size /= sizeof(u16);
537 nvm->word_size = E1000_ICH8_SHADOW_RAM_WORDS;
539 /* Clear shadow ram */
540 for (i = 0; i < nvm->word_size; i++) {
541 dev_spec->shadow_ram[i].modified = false;
542 dev_spec->shadow_ram[i].value = 0xFFFF;
549 * e1000_init_mac_params_ich8lan - Initialize MAC function pointers
550 * @hw: pointer to the HW structure
552 * Initialize family-specific MAC parameters and function
555 static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw)
557 struct e1000_mac_info *mac = &hw->mac;
559 /* Set media type function pointer */
560 hw->phy.media_type = e1000_media_type_copper;
562 /* Set mta register count */
563 mac->mta_reg_count = 32;
564 /* Set rar entry count */
565 mac->rar_entry_count = E1000_ICH_RAR_ENTRIES;
566 if (mac->type == e1000_ich8lan)
567 mac->rar_entry_count--;
569 mac->has_fwsm = true;
570 /* ARC subsystem not supported */
571 mac->arc_subsystem_valid = false;
572 /* Adaptive IFS supported */
573 mac->adaptive_ifs = true;
580 /* check management mode */
581 mac->ops.check_mng_mode = e1000_check_mng_mode_ich8lan;
583 mac->ops.id_led_init = e1000e_id_led_init_generic;
585 mac->ops.blink_led = e1000e_blink_led_generic;
587 mac->ops.setup_led = e1000e_setup_led_generic;
589 mac->ops.cleanup_led = e1000_cleanup_led_ich8lan;
590 /* turn on/off LED */
591 mac->ops.led_on = e1000_led_on_ich8lan;
592 mac->ops.led_off = e1000_led_off_ich8lan;
596 /* check management mode */
597 mac->ops.check_mng_mode = e1000_check_mng_mode_pchlan;
599 mac->ops.id_led_init = e1000_id_led_init_pchlan;
601 mac->ops.setup_led = e1000_setup_led_pchlan;
603 mac->ops.cleanup_led = e1000_cleanup_led_pchlan;
604 /* turn on/off LED */
605 mac->ops.led_on = e1000_led_on_pchlan;
606 mac->ops.led_off = e1000_led_off_pchlan;
612 /* Enable PCS Lock-loss workaround for ICH8 */
613 if (mac->type == e1000_ich8lan)
614 e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, true);
616 /* Gate automatic PHY configuration by hardware on managed 82579 */
617 if ((mac->type == e1000_pch2lan) &&
618 (er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
619 e1000_gate_hw_phy_config_ich8lan(hw, true);
625 * e1000_set_eee_pchlan - Enable/disable EEE support
626 * @hw: pointer to the HW structure
628 * Enable/disable EEE based on setting in dev_spec structure. The bits in
629 * the LPI Control register will remain set only if/when link is up.
631 static s32 e1000_set_eee_pchlan(struct e1000_hw *hw)
636 if (hw->phy.type != e1000_phy_82579)
639 ret_val = e1e_rphy(hw, I82579_LPI_CTRL, &phy_reg);
643 if (hw->dev_spec.ich8lan.eee_disable)
644 phy_reg &= ~I82579_LPI_CTRL_ENABLE_MASK;
646 phy_reg |= I82579_LPI_CTRL_ENABLE_MASK;
648 return e1e_wphy(hw, I82579_LPI_CTRL, phy_reg);
652 * e1000_check_for_copper_link_ich8lan - Check for link (Copper)
653 * @hw: pointer to the HW structure
655 * Checks to see of the link status of the hardware has changed. If a
656 * change in link status has been detected, then we read the PHY registers
657 * to get the current speed/duplex if link exists.
659 static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
661 struct e1000_mac_info *mac = &hw->mac;
667 * We only want to go out to the PHY registers to see if Auto-Neg
668 * has completed and/or if our link status has changed. The
669 * get_link_status flag is set upon receiving a Link Status
670 * Change or Rx Sequence Error interrupt.
672 if (!mac->get_link_status)
676 * First we want to see if the MII Status Register reports
677 * link. If so, then we want to get the current speed/duplex
680 ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
684 if (hw->mac.type == e1000_pchlan) {
685 ret_val = e1000_k1_gig_workaround_hv(hw, link);
691 return 0; /* No link detected */
693 mac->get_link_status = false;
695 switch (hw->mac.type) {
697 ret_val = e1000_k1_workaround_lv(hw);
702 if (hw->phy.type == e1000_phy_82578) {
703 ret_val = e1000_link_stall_workaround_hv(hw);
709 * Workaround for PCHx parts in half-duplex:
710 * Set the number of preambles removed from the packet
711 * when it is passed from the PHY to the MAC to prevent
712 * the MAC from misinterpreting the packet type.
714 e1e_rphy(hw, HV_KMRN_FIFO_CTRLSTA, &phy_reg);
715 phy_reg &= ~HV_KMRN_FIFO_CTRLSTA_PREAMBLE_MASK;
717 if ((er32(STATUS) & E1000_STATUS_FD) != E1000_STATUS_FD)
718 phy_reg |= (1 << HV_KMRN_FIFO_CTRLSTA_PREAMBLE_SHIFT);
720 e1e_wphy(hw, HV_KMRN_FIFO_CTRLSTA, phy_reg);
727 * Check if there was DownShift, must be checked
728 * immediately after link-up
730 e1000e_check_downshift(hw);
732 /* Enable/Disable EEE after link up */
733 ret_val = e1000_set_eee_pchlan(hw);
738 * If we are forcing speed/duplex, then we simply return since
739 * we have already determined whether we have link or not.
742 return -E1000_ERR_CONFIG;
745 * Auto-Neg is enabled. Auto Speed Detection takes care
746 * of MAC speed/duplex configuration. So we only need to
747 * configure Collision Distance in the MAC.
749 e1000e_config_collision_dist(hw);
752 * Configure Flow Control now that Auto-Neg has completed.
753 * First, we need to restore the desired flow control
754 * settings because we may have had to re-autoneg with a
755 * different link partner.
757 ret_val = e1000e_config_fc_after_link_up(hw);
759 e_dbg("Error configuring flow control\n");
764 static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
766 struct e1000_hw *hw = &adapter->hw;
769 rc = e1000_init_mac_params_ich8lan(hw);
773 rc = e1000_init_nvm_params_ich8lan(hw);
777 switch (hw->mac.type) {
781 rc = e1000_init_phy_params_ich8lan(hw);
785 rc = e1000_init_phy_params_pchlan(hw);
794 * Disable Jumbo Frame support on parts with Intel 10/100 PHY or
795 * on parts with MACsec enabled in NVM (reflected in CTRL_EXT).
797 if ((adapter->hw.phy.type == e1000_phy_ife) ||
798 ((adapter->hw.mac.type >= e1000_pch2lan) &&
799 (!(er32(CTRL_EXT) & E1000_CTRL_EXT_LSECCK)))) {
800 adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES;
801 adapter->max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN;
803 hw->mac.ops.blink_led = NULL;
806 if ((adapter->hw.mac.type == e1000_ich8lan) &&
807 (adapter->hw.phy.type != e1000_phy_ife))
808 adapter->flags |= FLAG_LSC_GIG_SPEED_DROP;
810 /* Enable workaround for 82579 w/ ME enabled */
811 if ((adapter->hw.mac.type == e1000_pch2lan) &&
812 (er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
813 adapter->flags2 |= FLAG2_PCIM2PCI_ARBITER_WA;
815 /* Disable EEE by default until IEEE802.3az spec is finalized */
816 if (adapter->flags2 & FLAG2_HAS_EEE)
817 adapter->hw.dev_spec.ich8lan.eee_disable = true;
822 static DEFINE_MUTEX(nvm_mutex);
825 * e1000_acquire_nvm_ich8lan - Acquire NVM mutex
826 * @hw: pointer to the HW structure
828 * Acquires the mutex for performing NVM operations.
830 static s32 e1000_acquire_nvm_ich8lan(struct e1000_hw *hw)
832 mutex_lock(&nvm_mutex);
838 * e1000_release_nvm_ich8lan - Release NVM mutex
839 * @hw: pointer to the HW structure
841 * Releases the mutex used while performing NVM operations.
843 static void e1000_release_nvm_ich8lan(struct e1000_hw *hw)
845 mutex_unlock(&nvm_mutex);
849 * e1000_acquire_swflag_ich8lan - Acquire software control flag
850 * @hw: pointer to the HW structure
852 * Acquires the software control flag for performing PHY and select
855 static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw)
857 u32 extcnf_ctrl, timeout = PHY_CFG_TIMEOUT;
860 if (test_and_set_bit(__E1000_ACCESS_SHARED_RESOURCE,
861 &hw->adapter->state)) {
862 e_dbg("contention for Phy access\n");
863 return -E1000_ERR_PHY;
867 extcnf_ctrl = er32(EXTCNF_CTRL);
868 if (!(extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG))
876 e_dbg("SW has already locked the resource.\n");
877 ret_val = -E1000_ERR_CONFIG;
881 timeout = SW_FLAG_TIMEOUT;
883 extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG;
884 ew32(EXTCNF_CTRL, extcnf_ctrl);
887 extcnf_ctrl = er32(EXTCNF_CTRL);
888 if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG)
896 e_dbg("Failed to acquire the semaphore, FW or HW has it: FWSM=0x%8.8x EXTCNF_CTRL=0x%8.8x)\n",
897 er32(FWSM), extcnf_ctrl);
898 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
899 ew32(EXTCNF_CTRL, extcnf_ctrl);
900 ret_val = -E1000_ERR_CONFIG;
906 clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state);
912 * e1000_release_swflag_ich8lan - Release software control flag
913 * @hw: pointer to the HW structure
915 * Releases the software control flag for performing PHY and select
918 static void e1000_release_swflag_ich8lan(struct e1000_hw *hw)
922 extcnf_ctrl = er32(EXTCNF_CTRL);
924 if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) {
925 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG;
926 ew32(EXTCNF_CTRL, extcnf_ctrl);
928 e_dbg("Semaphore unexpectedly released by sw/fw/hw\n");
931 clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state);
935 * e1000_check_mng_mode_ich8lan - Checks management mode
936 * @hw: pointer to the HW structure
938 * This checks if the adapter has any manageability enabled.
939 * This is a function pointer entry point only called by read/write
940 * routines for the PHY and NVM parts.
942 static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw)
947 return (fwsm & E1000_ICH_FWSM_FW_VALID) &&
948 ((fwsm & E1000_FWSM_MODE_MASK) ==
949 (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT));
953 * e1000_check_mng_mode_pchlan - Checks management mode
954 * @hw: pointer to the HW structure
956 * This checks if the adapter has iAMT enabled.
957 * This is a function pointer entry point only called by read/write
958 * routines for the PHY and NVM parts.
960 static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw)
965 return (fwsm & E1000_ICH_FWSM_FW_VALID) &&
966 (fwsm & (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT));
970 * e1000_check_reset_block_ich8lan - Check if PHY reset is blocked
971 * @hw: pointer to the HW structure
973 * Checks if firmware is blocking the reset of the PHY.
974 * This is a function pointer entry point only called by
977 static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
983 return (fwsm & E1000_ICH_FWSM_RSPCIPHY) ? 0 : E1000_BLK_PHY_RESET;
987 * e1000_write_smbus_addr - Write SMBus address to PHY needed during Sx states
988 * @hw: pointer to the HW structure
990 * Assumes semaphore already acquired.
993 static s32 e1000_write_smbus_addr(struct e1000_hw *hw)
996 u32 strap = er32(STRAP);
999 strap &= E1000_STRAP_SMBUS_ADDRESS_MASK;
1001 ret_val = e1000_read_phy_reg_hv_locked(hw, HV_SMB_ADDR, &phy_data);
1005 phy_data &= ~HV_SMB_ADDR_MASK;
1006 phy_data |= (strap >> E1000_STRAP_SMBUS_ADDRESS_SHIFT);
1007 phy_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID;
1009 return e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR, phy_data);
1013 * e1000_sw_lcd_config_ich8lan - SW-based LCD Configuration
1014 * @hw: pointer to the HW structure
1016 * SW should configure the LCD from the NVM extended configuration region
1017 * as a workaround for certain parts.
1019 static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw)
1021 struct e1000_phy_info *phy = &hw->phy;
1022 u32 i, data, cnf_size, cnf_base_addr, sw_cfg_mask;
1024 u16 word_addr, reg_data, reg_addr, phy_page = 0;
1027 * Initialize the PHY from the NVM on ICH platforms. This
1028 * is needed due to an issue where the NVM configuration is
1029 * not properly autoloaded after power transitions.
1030 * Therefore, after each PHY reset, we will load the
1031 * configuration data out of the NVM manually.
1033 switch (hw->mac.type) {
1035 if (phy->type != e1000_phy_igp_3)
1038 if ((hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_AMT) ||
1039 (hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_C)) {
1040 sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG;
1046 sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M;
1052 ret_val = hw->phy.ops.acquire(hw);
1056 data = er32(FEXTNVM);
1057 if (!(data & sw_cfg_mask))
1061 * Make sure HW does not configure LCD from PHY
1062 * extended configuration before SW configuration
1064 data = er32(EXTCNF_CTRL);
1065 if (!(hw->mac.type == e1000_pch2lan)) {
1066 if (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE)
1070 cnf_size = er32(EXTCNF_SIZE);
1071 cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK;
1072 cnf_size >>= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT;
1076 cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK;
1077 cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT;
1079 if ((!(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE) &&
1080 (hw->mac.type == e1000_pchlan)) ||
1081 (hw->mac.type == e1000_pch2lan)) {
1083 * HW configures the SMBus address and LEDs when the
1084 * OEM and LCD Write Enable bits are set in the NVM.
1085 * When both NVM bits are cleared, SW will configure
1088 ret_val = e1000_write_smbus_addr(hw);
1092 data = er32(LEDCTL);
1093 ret_val = e1000_write_phy_reg_hv_locked(hw, HV_LED_CONFIG,
1099 /* Configure LCD from extended configuration region. */
1101 /* cnf_base_addr is in DWORD */
1102 word_addr = (u16)(cnf_base_addr << 1);
1104 for (i = 0; i < cnf_size; i++) {
1105 ret_val = e1000_read_nvm(hw, (word_addr + i * 2), 1,
1110 ret_val = e1000_read_nvm(hw, (word_addr + i * 2 + 1),
1115 /* Save off the PHY page for future writes. */
1116 if (reg_addr == IGP01E1000_PHY_PAGE_SELECT) {
1117 phy_page = reg_data;
1121 reg_addr &= PHY_REG_MASK;
1122 reg_addr |= phy_page;
1124 ret_val = phy->ops.write_reg_locked(hw, (u32)reg_addr,
1131 hw->phy.ops.release(hw);
1136 * e1000_k1_gig_workaround_hv - K1 Si workaround
1137 * @hw: pointer to the HW structure
1138 * @link: link up bool flag
1140 * If K1 is enabled for 1Gbps, the MAC might stall when transitioning
1141 * from a lower speed. This workaround disables K1 whenever link is at 1Gig
1142 * If link is down, the function will restore the default K1 setting located
1145 static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link)
1149 bool k1_enable = hw->dev_spec.ich8lan.nvm_k1_enabled;
1151 if (hw->mac.type != e1000_pchlan)
1154 /* Wrap the whole flow with the sw flag */
1155 ret_val = hw->phy.ops.acquire(hw);
1159 /* Disable K1 when link is 1Gbps, otherwise use the NVM setting */
1161 if (hw->phy.type == e1000_phy_82578) {
1162 ret_val = hw->phy.ops.read_reg_locked(hw, BM_CS_STATUS,
1167 status_reg &= BM_CS_STATUS_LINK_UP |
1168 BM_CS_STATUS_RESOLVED |
1169 BM_CS_STATUS_SPEED_MASK;
1171 if (status_reg == (BM_CS_STATUS_LINK_UP |
1172 BM_CS_STATUS_RESOLVED |
1173 BM_CS_STATUS_SPEED_1000))
1177 if (hw->phy.type == e1000_phy_82577) {
1178 ret_val = hw->phy.ops.read_reg_locked(hw, HV_M_STATUS,
1183 status_reg &= HV_M_STATUS_LINK_UP |
1184 HV_M_STATUS_AUTONEG_COMPLETE |
1185 HV_M_STATUS_SPEED_MASK;
1187 if (status_reg == (HV_M_STATUS_LINK_UP |
1188 HV_M_STATUS_AUTONEG_COMPLETE |
1189 HV_M_STATUS_SPEED_1000))
1193 /* Link stall fix for link up */
1194 ret_val = hw->phy.ops.write_reg_locked(hw, PHY_REG(770, 19),
1200 /* Link stall fix for link down */
1201 ret_val = hw->phy.ops.write_reg_locked(hw, PHY_REG(770, 19),
1207 ret_val = e1000_configure_k1_ich8lan(hw, k1_enable);
1210 hw->phy.ops.release(hw);
1216 * e1000_configure_k1_ich8lan - Configure K1 power state
1217 * @hw: pointer to the HW structure
1218 * @enable: K1 state to configure
1220 * Configure the K1 power state based on the provided parameter.
1221 * Assumes semaphore already acquired.
1223 * Success returns 0, Failure returns -E1000_ERR_PHY (-2)
1225 s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable)
1233 ret_val = e1000e_read_kmrn_reg_locked(hw,
1234 E1000_KMRNCTRLSTA_K1_CONFIG,
1240 kmrn_reg |= E1000_KMRNCTRLSTA_K1_ENABLE;
1242 kmrn_reg &= ~E1000_KMRNCTRLSTA_K1_ENABLE;
1244 ret_val = e1000e_write_kmrn_reg_locked(hw,
1245 E1000_KMRNCTRLSTA_K1_CONFIG,
1251 ctrl_ext = er32(CTRL_EXT);
1252 ctrl_reg = er32(CTRL);
1254 reg = ctrl_reg & ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100);
1255 reg |= E1000_CTRL_FRCSPD;
1258 ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_SPD_BYPS);
1261 ew32(CTRL, ctrl_reg);
1262 ew32(CTRL_EXT, ctrl_ext);
1270 * e1000_oem_bits_config_ich8lan - SW-based LCD Configuration
1271 * @hw: pointer to the HW structure
1272 * @d0_state: boolean if entering d0 or d3 device state
1274 * SW will configure Gbe Disable and LPLU based on the NVM. The four bits are
1275 * collectively called OEM bits. The OEM Write Enable bit and SW Config bit
1276 * in NVM determines whether HW should configure LPLU and Gbe Disable.
1278 static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state)
1284 if ((hw->mac.type != e1000_pch2lan) && (hw->mac.type != e1000_pchlan))
1287 ret_val = hw->phy.ops.acquire(hw);
1291 if (!(hw->mac.type == e1000_pch2lan)) {
1292 mac_reg = er32(EXTCNF_CTRL);
1293 if (mac_reg & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)
1297 mac_reg = er32(FEXTNVM);
1298 if (!(mac_reg & E1000_FEXTNVM_SW_CONFIG_ICH8M))
1301 mac_reg = er32(PHY_CTRL);
1303 ret_val = hw->phy.ops.read_reg_locked(hw, HV_OEM_BITS, &oem_reg);
1307 oem_reg &= ~(HV_OEM_BITS_GBE_DIS | HV_OEM_BITS_LPLU);
1310 if (mac_reg & E1000_PHY_CTRL_GBE_DISABLE)
1311 oem_reg |= HV_OEM_BITS_GBE_DIS;
1313 if (mac_reg & E1000_PHY_CTRL_D0A_LPLU)
1314 oem_reg |= HV_OEM_BITS_LPLU;
1316 /* Set Restart auto-neg to activate the bits */
1317 if (!hw->phy.ops.check_reset_block(hw))
1318 oem_reg |= HV_OEM_BITS_RESTART_AN;
1320 if (mac_reg & (E1000_PHY_CTRL_GBE_DISABLE |
1321 E1000_PHY_CTRL_NOND0A_GBE_DISABLE))
1322 oem_reg |= HV_OEM_BITS_GBE_DIS;
1324 if (mac_reg & (E1000_PHY_CTRL_D0A_LPLU |
1325 E1000_PHY_CTRL_NOND0A_LPLU))
1326 oem_reg |= HV_OEM_BITS_LPLU;
1329 ret_val = hw->phy.ops.write_reg_locked(hw, HV_OEM_BITS, oem_reg);
1332 hw->phy.ops.release(hw);
1339 * e1000_set_mdio_slow_mode_hv - Set slow MDIO access mode
1340 * @hw: pointer to the HW structure
1342 static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw)
1347 ret_val = e1e_rphy(hw, HV_KMRN_MODE_CTRL, &data);
1351 data |= HV_KMRN_MDIO_SLOW;
1353 ret_val = e1e_wphy(hw, HV_KMRN_MODE_CTRL, data);
1359 * e1000_hv_phy_workarounds_ich8lan - A series of Phy workarounds to be
1360 * done after every PHY reset.
1362 static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw)
1367 if (hw->mac.type != e1000_pchlan)
1370 /* Set MDIO slow mode before any other MDIO access */
1371 if (hw->phy.type == e1000_phy_82577) {
1372 ret_val = e1000_set_mdio_slow_mode_hv(hw);
1377 if (((hw->phy.type == e1000_phy_82577) &&
1378 ((hw->phy.revision == 1) || (hw->phy.revision == 2))) ||
1379 ((hw->phy.type == e1000_phy_82578) && (hw->phy.revision == 1))) {
1380 /* Disable generation of early preamble */
1381 ret_val = e1e_wphy(hw, PHY_REG(769, 25), 0x4431);
1385 /* Preamble tuning for SSC */
1386 ret_val = e1e_wphy(hw, HV_KMRN_FIFO_CTRLSTA, 0xA204);
1391 if (hw->phy.type == e1000_phy_82578) {
1393 * Return registers to default by doing a soft reset then
1394 * writing 0x3140 to the control register.
1396 if (hw->phy.revision < 2) {
1397 e1000e_phy_sw_reset(hw);
1398 ret_val = e1e_wphy(hw, PHY_CONTROL, 0x3140);
1403 ret_val = hw->phy.ops.acquire(hw);
1408 ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0);
1409 hw->phy.ops.release(hw);
1414 * Configure the K1 Si workaround during phy reset assuming there is
1415 * link so that it disables K1 if link is in 1Gbps.
1417 ret_val = e1000_k1_gig_workaround_hv(hw, true);
1421 /* Workaround for link disconnects on a busy hub in half duplex */
1422 ret_val = hw->phy.ops.acquire(hw);
1425 ret_val = hw->phy.ops.read_reg_locked(hw, BM_PORT_GEN_CFG, &phy_data);
1428 ret_val = hw->phy.ops.write_reg_locked(hw, BM_PORT_GEN_CFG,
1431 hw->phy.ops.release(hw);
1437 * e1000_copy_rx_addrs_to_phy_ich8lan - Copy Rx addresses from MAC to PHY
1438 * @hw: pointer to the HW structure
1440 void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw)
1446 ret_val = hw->phy.ops.acquire(hw);
1449 ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg);
1453 /* Copy both RAL/H (rar_entry_count) and SHRAL/H (+4) to PHY */
1454 for (i = 0; i < (hw->mac.rar_entry_count + 4); i++) {
1455 mac_reg = er32(RAL(i));
1456 hw->phy.ops.write_reg_page(hw, BM_RAR_L(i),
1457 (u16)(mac_reg & 0xFFFF));
1458 hw->phy.ops.write_reg_page(hw, BM_RAR_M(i),
1459 (u16)((mac_reg >> 16) & 0xFFFF));
1461 mac_reg = er32(RAH(i));
1462 hw->phy.ops.write_reg_page(hw, BM_RAR_H(i),
1463 (u16)(mac_reg & 0xFFFF));
1464 hw->phy.ops.write_reg_page(hw, BM_RAR_CTRL(i),
1465 (u16)((mac_reg & E1000_RAH_AV)
1469 e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg);
1472 hw->phy.ops.release(hw);
1476 * e1000_lv_jumbo_workaround_ich8lan - required for jumbo frame operation
1478 * @hw: pointer to the HW structure
1479 * @enable: flag to enable/disable workaround when enabling/disabling jumbos
1481 s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable)
1488 if (hw->mac.type != e1000_pch2lan)
1491 /* disable Rx path while enabling/disabling workaround */
1492 e1e_rphy(hw, PHY_REG(769, 20), &phy_reg);
1493 ret_val = e1e_wphy(hw, PHY_REG(769, 20), phy_reg | (1 << 14));
1499 * Write Rx addresses (rar_entry_count for RAL/H, +4 for
1500 * SHRAL/H) and initial CRC values to the MAC
1502 for (i = 0; i < (hw->mac.rar_entry_count + 4); i++) {
1503 u8 mac_addr[ETH_ALEN] = {0};
1504 u32 addr_high, addr_low;
1506 addr_high = er32(RAH(i));
1507 if (!(addr_high & E1000_RAH_AV))
1509 addr_low = er32(RAL(i));
1510 mac_addr[0] = (addr_low & 0xFF);
1511 mac_addr[1] = ((addr_low >> 8) & 0xFF);
1512 mac_addr[2] = ((addr_low >> 16) & 0xFF);
1513 mac_addr[3] = ((addr_low >> 24) & 0xFF);
1514 mac_addr[4] = (addr_high & 0xFF);
1515 mac_addr[5] = ((addr_high >> 8) & 0xFF);
1517 ew32(PCH_RAICC(i), ~ether_crc_le(ETH_ALEN, mac_addr));
1520 /* Write Rx addresses to the PHY */
1521 e1000_copy_rx_addrs_to_phy_ich8lan(hw);
1523 /* Enable jumbo frame workaround in the MAC */
1524 mac_reg = er32(FFLT_DBG);
1525 mac_reg &= ~(1 << 14);
1526 mac_reg |= (7 << 15);
1527 ew32(FFLT_DBG, mac_reg);
1529 mac_reg = er32(RCTL);
1530 mac_reg |= E1000_RCTL_SECRC;
1531 ew32(RCTL, mac_reg);
1533 ret_val = e1000e_read_kmrn_reg(hw,
1534 E1000_KMRNCTRLSTA_CTRL_OFFSET,
1538 ret_val = e1000e_write_kmrn_reg(hw,
1539 E1000_KMRNCTRLSTA_CTRL_OFFSET,
1543 ret_val = e1000e_read_kmrn_reg(hw,
1544 E1000_KMRNCTRLSTA_HD_CTRL,
1548 data &= ~(0xF << 8);
1550 ret_val = e1000e_write_kmrn_reg(hw,
1551 E1000_KMRNCTRLSTA_HD_CTRL,
1556 /* Enable jumbo frame workaround in the PHY */
1557 e1e_rphy(hw, PHY_REG(769, 23), &data);
1558 data &= ~(0x7F << 5);
1559 data |= (0x37 << 5);
1560 ret_val = e1e_wphy(hw, PHY_REG(769, 23), data);
1563 e1e_rphy(hw, PHY_REG(769, 16), &data);
1565 ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
1568 e1e_rphy(hw, PHY_REG(776, 20), &data);
1569 data &= ~(0x3FF << 2);
1570 data |= (0x1A << 2);
1571 ret_val = e1e_wphy(hw, PHY_REG(776, 20), data);
1574 ret_val = e1e_wphy(hw, PHY_REG(776, 23), 0xF100);
1577 e1e_rphy(hw, HV_PM_CTRL, &data);
1578 ret_val = e1e_wphy(hw, HV_PM_CTRL, data | (1 << 10));
1582 /* Write MAC register values back to h/w defaults */
1583 mac_reg = er32(FFLT_DBG);
1584 mac_reg &= ~(0xF << 14);
1585 ew32(FFLT_DBG, mac_reg);
1587 mac_reg = er32(RCTL);
1588 mac_reg &= ~E1000_RCTL_SECRC;
1589 ew32(RCTL, mac_reg);
1591 ret_val = e1000e_read_kmrn_reg(hw,
1592 E1000_KMRNCTRLSTA_CTRL_OFFSET,
1596 ret_val = e1000e_write_kmrn_reg(hw,
1597 E1000_KMRNCTRLSTA_CTRL_OFFSET,
1601 ret_val = e1000e_read_kmrn_reg(hw,
1602 E1000_KMRNCTRLSTA_HD_CTRL,
1606 data &= ~(0xF << 8);
1608 ret_val = e1000e_write_kmrn_reg(hw,
1609 E1000_KMRNCTRLSTA_HD_CTRL,
1614 /* Write PHY register values back to h/w defaults */
1615 e1e_rphy(hw, PHY_REG(769, 23), &data);
1616 data &= ~(0x7F << 5);
1617 ret_val = e1e_wphy(hw, PHY_REG(769, 23), data);
1620 e1e_rphy(hw, PHY_REG(769, 16), &data);
1622 ret_val = e1e_wphy(hw, PHY_REG(769, 16), data);
1625 e1e_rphy(hw, PHY_REG(776, 20), &data);
1626 data &= ~(0x3FF << 2);
1628 ret_val = e1e_wphy(hw, PHY_REG(776, 20), data);
1631 ret_val = e1e_wphy(hw, PHY_REG(776, 23), 0x7E00);
1634 e1e_rphy(hw, HV_PM_CTRL, &data);
1635 ret_val = e1e_wphy(hw, HV_PM_CTRL, data & ~(1 << 10));
1640 /* re-enable Rx path after enabling/disabling workaround */
1641 return e1e_wphy(hw, PHY_REG(769, 20), phy_reg & ~(1 << 14));
1645 * e1000_lv_phy_workarounds_ich8lan - A series of Phy workarounds to be
1646 * done after every PHY reset.
1648 static s32 e1000_lv_phy_workarounds_ich8lan(struct e1000_hw *hw)
1652 if (hw->mac.type != e1000_pch2lan)
1655 /* Set MDIO slow mode before any other MDIO access */
1656 ret_val = e1000_set_mdio_slow_mode_hv(hw);
1658 ret_val = hw->phy.ops.acquire(hw);
1661 ret_val = hw->phy.ops.write_reg_locked(hw, I82579_EMI_ADDR,
1662 I82579_MSE_THRESHOLD);
1665 /* set MSE higher to enable link to stay up when noise is high */
1666 ret_val = hw->phy.ops.write_reg_locked(hw, I82579_EMI_DATA, 0x0034);
1669 ret_val = hw->phy.ops.write_reg_locked(hw, I82579_EMI_ADDR,
1670 I82579_MSE_LINK_DOWN);
1673 /* drop link after 5 times MSE threshold was reached */
1674 ret_val = hw->phy.ops.write_reg_locked(hw, I82579_EMI_DATA, 0x0005);
1676 hw->phy.ops.release(hw);
1682 * e1000_k1_gig_workaround_lv - K1 Si workaround
1683 * @hw: pointer to the HW structure
1685 * Workaround to set the K1 beacon duration for 82579 parts
1687 static s32 e1000_k1_workaround_lv(struct e1000_hw *hw)
1694 if (hw->mac.type != e1000_pch2lan)
1697 /* Set K1 beacon duration based on 1Gbps speed or otherwise */
1698 ret_val = e1e_rphy(hw, HV_M_STATUS, &status_reg);
1702 if ((status_reg & (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE))
1703 == (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE)) {
1704 mac_reg = er32(FEXTNVM4);
1705 mac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK;
1707 ret_val = e1e_rphy(hw, I82579_LPI_CTRL, &phy_reg);
1711 if (status_reg & HV_M_STATUS_SPEED_1000) {
1712 mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_8USEC;
1713 phy_reg &= ~I82579_LPI_CTRL_FORCE_PLL_LOCK_COUNT;
1715 mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_16USEC;
1716 phy_reg |= I82579_LPI_CTRL_FORCE_PLL_LOCK_COUNT;
1718 ew32(FEXTNVM4, mac_reg);
1719 ret_val = e1e_wphy(hw, I82579_LPI_CTRL, phy_reg);
1726 * e1000_gate_hw_phy_config_ich8lan - disable PHY config via hardware
1727 * @hw: pointer to the HW structure
1728 * @gate: boolean set to true to gate, false to ungate
1730 * Gate/ungate the automatic PHY configuration via hardware; perform
1731 * the configuration via software instead.
1733 static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate)
1737 if (hw->mac.type != e1000_pch2lan)
1740 extcnf_ctrl = er32(EXTCNF_CTRL);
1743 extcnf_ctrl |= E1000_EXTCNF_CTRL_GATE_PHY_CFG;
1745 extcnf_ctrl &= ~E1000_EXTCNF_CTRL_GATE_PHY_CFG;
1747 ew32(EXTCNF_CTRL, extcnf_ctrl);
1751 * e1000_lan_init_done_ich8lan - Check for PHY config completion
1752 * @hw: pointer to the HW structure
1754 * Check the appropriate indication the MAC has finished configuring the
1755 * PHY after a software reset.
1757 static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw)
1759 u32 data, loop = E1000_ICH8_LAN_INIT_TIMEOUT;
1761 /* Wait for basic configuration completes before proceeding */
1763 data = er32(STATUS);
1764 data &= E1000_STATUS_LAN_INIT_DONE;
1766 } while ((!data) && --loop);
1769 * If basic configuration is incomplete before the above loop
1770 * count reaches 0, loading the configuration from NVM will
1771 * leave the PHY in a bad state possibly resulting in no link.
1774 e_dbg("LAN_INIT_DONE not set, increase timeout\n");
1776 /* Clear the Init Done bit for the next init event */
1777 data = er32(STATUS);
1778 data &= ~E1000_STATUS_LAN_INIT_DONE;
1783 * e1000_post_phy_reset_ich8lan - Perform steps required after a PHY reset
1784 * @hw: pointer to the HW structure
1786 static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw)
1791 if (hw->phy.ops.check_reset_block(hw))
1794 /* Allow time for h/w to get to quiescent state after reset */
1795 usleep_range(10000, 20000);
1797 /* Perform any necessary post-reset workarounds */
1798 switch (hw->mac.type) {
1800 ret_val = e1000_hv_phy_workarounds_ich8lan(hw);
1805 ret_val = e1000_lv_phy_workarounds_ich8lan(hw);
1813 /* Clear the host wakeup bit after lcd reset */
1814 if (hw->mac.type >= e1000_pchlan) {
1815 e1e_rphy(hw, BM_PORT_GEN_CFG, ®);
1816 reg &= ~BM_WUC_HOST_WU_BIT;
1817 e1e_wphy(hw, BM_PORT_GEN_CFG, reg);
1820 /* Configure the LCD with the extended configuration region in NVM */
1821 ret_val = e1000_sw_lcd_config_ich8lan(hw);
1825 /* Configure the LCD with the OEM bits in NVM */
1826 ret_val = e1000_oem_bits_config_ich8lan(hw, true);
1828 if (hw->mac.type == e1000_pch2lan) {
1829 /* Ungate automatic PHY configuration on non-managed 82579 */
1830 if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) {
1831 usleep_range(10000, 20000);
1832 e1000_gate_hw_phy_config_ich8lan(hw, false);
1835 /* Set EEE LPI Update Timer to 200usec */
1836 ret_val = hw->phy.ops.acquire(hw);
1839 ret_val = hw->phy.ops.write_reg_locked(hw, I82579_EMI_ADDR,
1840 I82579_LPI_UPDATE_TIMER);
1842 ret_val = hw->phy.ops.write_reg_locked(hw,
1845 hw->phy.ops.release(hw);
1852 * e1000_phy_hw_reset_ich8lan - Performs a PHY reset
1853 * @hw: pointer to the HW structure
1856 * This is a function pointer entry point called by drivers
1857 * or other shared routines.
1859 static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw)
1863 /* Gate automatic PHY configuration by hardware on non-managed 82579 */
1864 if ((hw->mac.type == e1000_pch2lan) &&
1865 !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
1866 e1000_gate_hw_phy_config_ich8lan(hw, true);
1868 ret_val = e1000e_phy_hw_reset_generic(hw);
1872 return e1000_post_phy_reset_ich8lan(hw);
1876 * e1000_set_lplu_state_pchlan - Set Low Power Link Up state
1877 * @hw: pointer to the HW structure
1878 * @active: true to enable LPLU, false to disable
1880 * Sets the LPLU state according to the active flag. For PCH, if OEM write
1881 * bit are disabled in the NVM, writing the LPLU bits in the MAC will not set
1882 * the phy speed. This function will manually set the LPLU bit and restart
1883 * auto-neg as hw would do. D3 and D0 LPLU will call the same function
1884 * since it configures the same bit.
1886 static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active)
1891 ret_val = e1e_rphy(hw, HV_OEM_BITS, &oem_reg);
1896 oem_reg |= HV_OEM_BITS_LPLU;
1898 oem_reg &= ~HV_OEM_BITS_LPLU;
1900 if (!hw->phy.ops.check_reset_block(hw))
1901 oem_reg |= HV_OEM_BITS_RESTART_AN;
1903 return e1e_wphy(hw, HV_OEM_BITS, oem_reg);
1907 * e1000_set_d0_lplu_state_ich8lan - Set Low Power Linkup D0 state
1908 * @hw: pointer to the HW structure
1909 * @active: true to enable LPLU, false to disable
1911 * Sets the LPLU D0 state according to the active flag. When
1912 * activating LPLU this function also disables smart speed
1913 * and vice versa. LPLU will not be activated unless the
1914 * device autonegotiation advertisement meets standards of
1915 * either 10 or 10/100 or 10/100/1000 at all duplexes.
1916 * This is a function pointer entry point only called by
1917 * PHY setup routines.
1919 static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
1921 struct e1000_phy_info *phy = &hw->phy;
1926 if (phy->type == e1000_phy_ife)
1929 phy_ctrl = er32(PHY_CTRL);
1932 phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU;
1933 ew32(PHY_CTRL, phy_ctrl);
1935 if (phy->type != e1000_phy_igp_3)
1939 * Call gig speed drop workaround on LPLU before accessing
1942 if (hw->mac.type == e1000_ich8lan)
1943 e1000e_gig_downshift_workaround_ich8lan(hw);
1945 /* When LPLU is enabled, we should disable SmartSpeed */
1946 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
1947 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
1948 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
1952 phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU;
1953 ew32(PHY_CTRL, phy_ctrl);
1955 if (phy->type != e1000_phy_igp_3)
1959 * LPLU and SmartSpeed are mutually exclusive. LPLU is used
1960 * during Dx states where the power conservation is most
1961 * important. During driver activity we should enable
1962 * SmartSpeed, so performance is maintained.
1964 if (phy->smart_speed == e1000_smart_speed_on) {
1965 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1970 data |= IGP01E1000_PSCFR_SMART_SPEED;
1971 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1975 } else if (phy->smart_speed == e1000_smart_speed_off) {
1976 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1981 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
1982 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
1993 * e1000_set_d3_lplu_state_ich8lan - Set Low Power Linkup D3 state
1994 * @hw: pointer to the HW structure
1995 * @active: true to enable LPLU, false to disable
1997 * Sets the LPLU D3 state according to the active flag. When
1998 * activating LPLU this function also disables smart speed
1999 * and vice versa. LPLU will not be activated unless the
2000 * device autonegotiation advertisement meets standards of
2001 * either 10 or 10/100 or 10/100/1000 at all duplexes.
2002 * This is a function pointer entry point only called by
2003 * PHY setup routines.
2005 static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active)
2007 struct e1000_phy_info *phy = &hw->phy;
2012 phy_ctrl = er32(PHY_CTRL);
2015 phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU;
2016 ew32(PHY_CTRL, phy_ctrl);
2018 if (phy->type != e1000_phy_igp_3)
2022 * LPLU and SmartSpeed are mutually exclusive. LPLU is used
2023 * during Dx states where the power conservation is most
2024 * important. During driver activity we should enable
2025 * SmartSpeed, so performance is maintained.
2027 if (phy->smart_speed == e1000_smart_speed_on) {
2028 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2033 data |= IGP01E1000_PSCFR_SMART_SPEED;
2034 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2038 } else if (phy->smart_speed == e1000_smart_speed_off) {
2039 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2044 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
2045 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG,
2050 } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
2051 (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
2052 (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
2053 phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU;
2054 ew32(PHY_CTRL, phy_ctrl);
2056 if (phy->type != e1000_phy_igp_3)
2060 * Call gig speed drop workaround on LPLU before accessing
2063 if (hw->mac.type == e1000_ich8lan)
2064 e1000e_gig_downshift_workaround_ich8lan(hw);
2066 /* When LPLU is enabled, we should disable SmartSpeed */
2067 ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data);
2071 data &= ~IGP01E1000_PSCFR_SMART_SPEED;
2072 ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data);
2079 * e1000_valid_nvm_bank_detect_ich8lan - finds out the valid bank 0 or 1
2080 * @hw: pointer to the HW structure
2081 * @bank: pointer to the variable that returns the active bank
2083 * Reads signature byte from the NVM using the flash access registers.
2084 * Word 0x13 bits 15:14 = 10b indicate a valid signature for that bank.
2086 static s32 e1000_valid_nvm_bank_detect_ich8lan(struct e1000_hw *hw, u32 *bank)
2089 struct e1000_nvm_info *nvm = &hw->nvm;
2090 u32 bank1_offset = nvm->flash_bank_size * sizeof(u16);
2091 u32 act_offset = E1000_ICH_NVM_SIG_WORD * 2 + 1;
2095 switch (hw->mac.type) {
2099 if ((eecd & E1000_EECD_SEC1VAL_VALID_MASK) ==
2100 E1000_EECD_SEC1VAL_VALID_MASK) {
2101 if (eecd & E1000_EECD_SEC1VAL)
2108 e_dbg("Unable to determine valid NVM bank via EEC - reading flash signature\n");
2111 /* set bank to 0 in case flash read fails */
2115 ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset,
2119 if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
2120 E1000_ICH_NVM_SIG_VALUE) {
2126 ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset +
2131 if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) ==
2132 E1000_ICH_NVM_SIG_VALUE) {
2137 e_dbg("ERROR: No valid NVM bank present\n");
2138 return -E1000_ERR_NVM;
2143 * e1000_read_nvm_ich8lan - Read word(s) from the NVM
2144 * @hw: pointer to the HW structure
2145 * @offset: The offset (in bytes) of the word(s) to read.
2146 * @words: Size of data to read in words
2147 * @data: Pointer to the word(s) to read at offset.
2149 * Reads a word(s) from the NVM using the flash access registers.
2151 static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
2154 struct e1000_nvm_info *nvm = &hw->nvm;
2155 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
2161 if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
2163 e_dbg("nvm parameter(s) out of bounds\n");
2164 ret_val = -E1000_ERR_NVM;
2168 nvm->ops.acquire(hw);
2170 ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
2172 e_dbg("Could not detect valid bank, assuming bank 0\n");
2176 act_offset = (bank) ? nvm->flash_bank_size : 0;
2177 act_offset += offset;
2180 for (i = 0; i < words; i++) {
2181 if (dev_spec->shadow_ram[offset+i].modified) {
2182 data[i] = dev_spec->shadow_ram[offset+i].value;
2184 ret_val = e1000_read_flash_word_ich8lan(hw,
2193 nvm->ops.release(hw);
2197 e_dbg("NVM read error: %d\n", ret_val);
2203 * e1000_flash_cycle_init_ich8lan - Initialize flash
2204 * @hw: pointer to the HW structure
2206 * This function does initial flash setup so that a new read/write/erase cycle
2209 static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw)
2211 union ich8_hws_flash_status hsfsts;
2212 s32 ret_val = -E1000_ERR_NVM;
2214 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2216 /* Check if the flash descriptor is valid */
2217 if (hsfsts.hsf_status.fldesvalid == 0) {
2218 e_dbg("Flash descriptor invalid. SW Sequencing must be used.\n");
2219 return -E1000_ERR_NVM;
2222 /* Clear FCERR and DAEL in hw status by writing 1 */
2223 hsfsts.hsf_status.flcerr = 1;
2224 hsfsts.hsf_status.dael = 1;
2226 ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
2229 * Either we should have a hardware SPI cycle in progress
2230 * bit to check against, in order to start a new cycle or
2231 * FDONE bit should be changed in the hardware so that it
2232 * is 1 after hardware reset, which can then be used as an
2233 * indication whether a cycle is in progress or has been
2237 if (hsfsts.hsf_status.flcinprog == 0) {
2239 * There is no cycle running at present,
2240 * so we can start a cycle.
2241 * Begin by setting Flash Cycle Done.
2243 hsfsts.hsf_status.flcdone = 1;
2244 ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
2250 * Otherwise poll for sometime so the current
2251 * cycle has a chance to end before giving up.
2253 for (i = 0; i < ICH_FLASH_READ_COMMAND_TIMEOUT; i++) {
2254 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2255 if (hsfsts.hsf_status.flcinprog == 0) {
2263 * Successful in waiting for previous cycle to timeout,
2264 * now set the Flash Cycle Done.
2266 hsfsts.hsf_status.flcdone = 1;
2267 ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval);
2269 e_dbg("Flash controller busy, cannot get access\n");
2277 * e1000_flash_cycle_ich8lan - Starts flash cycle (read/write/erase)
2278 * @hw: pointer to the HW structure
2279 * @timeout: maximum time to wait for completion
2281 * This function starts a flash cycle and waits for its completion.
2283 static s32 e1000_flash_cycle_ich8lan(struct e1000_hw *hw, u32 timeout)
2285 union ich8_hws_flash_ctrl hsflctl;
2286 union ich8_hws_flash_status hsfsts;
2289 /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */
2290 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
2291 hsflctl.hsf_ctrl.flcgo = 1;
2292 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
2294 /* wait till FDONE bit is set to 1 */
2296 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2297 if (hsfsts.hsf_status.flcdone == 1)
2300 } while (i++ < timeout);
2302 if (hsfsts.hsf_status.flcdone == 1 && hsfsts.hsf_status.flcerr == 0)
2305 return -E1000_ERR_NVM;
2309 * e1000_read_flash_word_ich8lan - Read word from flash
2310 * @hw: pointer to the HW structure
2311 * @offset: offset to data location
2312 * @data: pointer to the location for storing the data
2314 * Reads the flash word at offset into data. Offset is converted
2315 * to bytes before read.
2317 static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset,
2320 /* Must convert offset into bytes. */
2323 return e1000_read_flash_data_ich8lan(hw, offset, 2, data);
2327 * e1000_read_flash_byte_ich8lan - Read byte from flash
2328 * @hw: pointer to the HW structure
2329 * @offset: The offset of the byte to read.
2330 * @data: Pointer to a byte to store the value read.
2332 * Reads a single byte from the NVM using the flash access registers.
2334 static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
2340 ret_val = e1000_read_flash_data_ich8lan(hw, offset, 1, &word);
2350 * e1000_read_flash_data_ich8lan - Read byte or word from NVM
2351 * @hw: pointer to the HW structure
2352 * @offset: The offset (in bytes) of the byte or word to read.
2353 * @size: Size of data to read, 1=byte 2=word
2354 * @data: Pointer to the word to store the value read.
2356 * Reads a byte or word from the NVM using the flash access registers.
2358 static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
2361 union ich8_hws_flash_status hsfsts;
2362 union ich8_hws_flash_ctrl hsflctl;
2363 u32 flash_linear_addr;
2365 s32 ret_val = -E1000_ERR_NVM;
2368 if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK)
2369 return -E1000_ERR_NVM;
2371 flash_linear_addr = (ICH_FLASH_LINEAR_ADDR_MASK & offset) +
2372 hw->nvm.flash_base_addr;
2377 ret_val = e1000_flash_cycle_init_ich8lan(hw);
2381 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
2382 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
2383 hsflctl.hsf_ctrl.fldbcount = size - 1;
2384 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ;
2385 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
2387 ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
2389 ret_val = e1000_flash_cycle_ich8lan(hw,
2390 ICH_FLASH_READ_COMMAND_TIMEOUT);
2393 * Check if FCERR is set to 1, if set to 1, clear it
2394 * and try the whole sequence a few more times, else
2395 * read in (shift in) the Flash Data0, the order is
2396 * least significant byte first msb to lsb
2399 flash_data = er32flash(ICH_FLASH_FDATA0);
2401 *data = (u8)(flash_data & 0x000000FF);
2403 *data = (u16)(flash_data & 0x0000FFFF);
2407 * If we've gotten here, then things are probably
2408 * completely hosed, but if the error condition is
2409 * detected, it won't hurt to give it another try...
2410 * ICH_FLASH_CYCLE_REPEAT_COUNT times.
2412 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2413 if (hsfsts.hsf_status.flcerr == 1) {
2414 /* Repeat for some time before giving up. */
2416 } else if (hsfsts.hsf_status.flcdone == 0) {
2417 e_dbg("Timeout error - flash cycle did not complete.\n");
2421 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
2427 * e1000_write_nvm_ich8lan - Write word(s) to the NVM
2428 * @hw: pointer to the HW structure
2429 * @offset: The offset (in bytes) of the word(s) to write.
2430 * @words: Size of data to write in words
2431 * @data: Pointer to the word(s) to write at offset.
2433 * Writes a byte or word to the NVM using the flash access registers.
2435 static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words,
2438 struct e1000_nvm_info *nvm = &hw->nvm;
2439 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
2442 if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) ||
2444 e_dbg("nvm parameter(s) out of bounds\n");
2445 return -E1000_ERR_NVM;
2448 nvm->ops.acquire(hw);
2450 for (i = 0; i < words; i++) {
2451 dev_spec->shadow_ram[offset+i].modified = true;
2452 dev_spec->shadow_ram[offset+i].value = data[i];
2455 nvm->ops.release(hw);
2461 * e1000_update_nvm_checksum_ich8lan - Update the checksum for NVM
2462 * @hw: pointer to the HW structure
2464 * The NVM checksum is updated by calling the generic update_nvm_checksum,
2465 * which writes the checksum to the shadow ram. The changes in the shadow
2466 * ram are then committed to the EEPROM by processing each bank at a time
2467 * checking for the modified bit and writing only the pending changes.
2468 * After a successful commit, the shadow ram is cleared and is ready for
2471 static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw)
2473 struct e1000_nvm_info *nvm = &hw->nvm;
2474 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
2475 u32 i, act_offset, new_bank_offset, old_bank_offset, bank;
2479 ret_val = e1000e_update_nvm_checksum_generic(hw);
2483 if (nvm->type != e1000_nvm_flash_sw)
2486 nvm->ops.acquire(hw);
2489 * We're writing to the opposite bank so if we're on bank 1,
2490 * write to bank 0 etc. We also need to erase the segment that
2491 * is going to be written
2493 ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank);
2495 e_dbg("Could not detect valid bank, assuming bank 0\n");
2500 new_bank_offset = nvm->flash_bank_size;
2501 old_bank_offset = 0;
2502 ret_val = e1000_erase_flash_bank_ich8lan(hw, 1);
2506 old_bank_offset = nvm->flash_bank_size;
2507 new_bank_offset = 0;
2508 ret_val = e1000_erase_flash_bank_ich8lan(hw, 0);
2513 for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) {
2515 * Determine whether to write the value stored
2516 * in the other NVM bank or a modified value stored
2519 if (dev_spec->shadow_ram[i].modified) {
2520 data = dev_spec->shadow_ram[i].value;
2522 ret_val = e1000_read_flash_word_ich8lan(hw, i +
2530 * If the word is 0x13, then make sure the signature bits
2531 * (15:14) are 11b until the commit has completed.
2532 * This will allow us to write 10b which indicates the
2533 * signature is valid. We want to do this after the write
2534 * has completed so that we don't mark the segment valid
2535 * while the write is still in progress
2537 if (i == E1000_ICH_NVM_SIG_WORD)
2538 data |= E1000_ICH_NVM_SIG_MASK;
2540 /* Convert offset to bytes. */
2541 act_offset = (i + new_bank_offset) << 1;
2544 /* Write the bytes to the new bank. */
2545 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
2552 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
2560 * Don't bother writing the segment valid bits if sector
2561 * programming failed.
2564 /* Possibly read-only, see e1000e_write_protect_nvm_ich8lan() */
2565 e_dbg("Flash commit failed.\n");
2570 * Finally validate the new segment by setting bit 15:14
2571 * to 10b in word 0x13 , this can be done without an
2572 * erase as well since these bits are 11 to start with
2573 * and we need to change bit 14 to 0b
2575 act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD;
2576 ret_val = e1000_read_flash_word_ich8lan(hw, act_offset, &data);
2581 ret_val = e1000_retry_write_flash_byte_ich8lan(hw,
2588 * And invalidate the previously valid segment by setting
2589 * its signature word (0x13) high_byte to 0b. This can be
2590 * done without an erase because flash erase sets all bits
2591 * to 1's. We can write 1's to 0's without an erase
2593 act_offset = (old_bank_offset + E1000_ICH_NVM_SIG_WORD) * 2 + 1;
2594 ret_val = e1000_retry_write_flash_byte_ich8lan(hw, act_offset, 0);
2598 /* Great! Everything worked, we can now clear the cached entries. */
2599 for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) {
2600 dev_spec->shadow_ram[i].modified = false;
2601 dev_spec->shadow_ram[i].value = 0xFFFF;
2605 nvm->ops.release(hw);
2608 * Reload the EEPROM, or else modifications will not appear
2609 * until after the next adapter reset.
2612 e1000e_reload_nvm(hw);
2613 usleep_range(10000, 20000);
2618 e_dbg("NVM update error: %d\n", ret_val);
2624 * e1000_validate_nvm_checksum_ich8lan - Validate EEPROM checksum
2625 * @hw: pointer to the HW structure
2627 * Check to see if checksum needs to be fixed by reading bit 6 in word 0x19.
2628 * If the bit is 0, that the EEPROM had been modified, but the checksum was not
2629 * calculated, in which case we need to calculate the checksum and set bit 6.
2631 static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw)
2637 * Read 0x19 and check bit 6. If this bit is 0, the checksum
2638 * needs to be fixed. This bit is an indication that the NVM
2639 * was prepared by OEM software and did not calculate the
2640 * checksum...a likely scenario.
2642 ret_val = e1000_read_nvm(hw, 0x19, 1, &data);
2646 if ((data & 0x40) == 0) {
2648 ret_val = e1000_write_nvm(hw, 0x19, 1, &data);
2651 ret_val = e1000e_update_nvm_checksum(hw);
2656 return e1000e_validate_nvm_checksum_generic(hw);
2660 * e1000e_write_protect_nvm_ich8lan - Make the NVM read-only
2661 * @hw: pointer to the HW structure
2663 * To prevent malicious write/erase of the NVM, set it to be read-only
2664 * so that the hardware ignores all write/erase cycles of the NVM via
2665 * the flash control registers. The shadow-ram copy of the NVM will
2666 * still be updated, however any updates to this copy will not stick
2667 * across driver reloads.
2669 void e1000e_write_protect_nvm_ich8lan(struct e1000_hw *hw)
2671 struct e1000_nvm_info *nvm = &hw->nvm;
2672 union ich8_flash_protected_range pr0;
2673 union ich8_hws_flash_status hsfsts;
2676 nvm->ops.acquire(hw);
2678 gfpreg = er32flash(ICH_FLASH_GFPREG);
2680 /* Write-protect GbE Sector of NVM */
2681 pr0.regval = er32flash(ICH_FLASH_PR0);
2682 pr0.range.base = gfpreg & FLASH_GFPREG_BASE_MASK;
2683 pr0.range.limit = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK);
2684 pr0.range.wpe = true;
2685 ew32flash(ICH_FLASH_PR0, pr0.regval);
2688 * Lock down a subset of GbE Flash Control Registers, e.g.
2689 * PR0 to prevent the write-protection from being lifted.
2690 * Once FLOCKDN is set, the registers protected by it cannot
2691 * be written until FLOCKDN is cleared by a hardware reset.
2693 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2694 hsfsts.hsf_status.flockdn = true;
2695 ew32flash(ICH_FLASH_HSFSTS, hsfsts.regval);
2697 nvm->ops.release(hw);
2701 * e1000_write_flash_data_ich8lan - Writes bytes to the NVM
2702 * @hw: pointer to the HW structure
2703 * @offset: The offset (in bytes) of the byte/word to read.
2704 * @size: Size of data to read, 1=byte 2=word
2705 * @data: The byte(s) to write to the NVM.
2707 * Writes one/two bytes to the NVM using the flash access registers.
2709 static s32 e1000_write_flash_data_ich8lan(struct e1000_hw *hw, u32 offset,
2712 union ich8_hws_flash_status hsfsts;
2713 union ich8_hws_flash_ctrl hsflctl;
2714 u32 flash_linear_addr;
2719 if (size < 1 || size > 2 || data > size * 0xff ||
2720 offset > ICH_FLASH_LINEAR_ADDR_MASK)
2721 return -E1000_ERR_NVM;
2723 flash_linear_addr = (ICH_FLASH_LINEAR_ADDR_MASK & offset) +
2724 hw->nvm.flash_base_addr;
2729 ret_val = e1000_flash_cycle_init_ich8lan(hw);
2733 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
2734 /* 0b/1b corresponds to 1 or 2 byte size, respectively. */
2735 hsflctl.hsf_ctrl.fldbcount = size -1;
2736 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE;
2737 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
2739 ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
2742 flash_data = (u32)data & 0x00FF;
2744 flash_data = (u32)data;
2746 ew32flash(ICH_FLASH_FDATA0, flash_data);
2749 * check if FCERR is set to 1 , if set to 1, clear it
2750 * and try the whole sequence a few more times else done
2752 ret_val = e1000_flash_cycle_ich8lan(hw,
2753 ICH_FLASH_WRITE_COMMAND_TIMEOUT);
2758 * If we're here, then things are most likely
2759 * completely hosed, but if the error condition
2760 * is detected, it won't hurt to give it another
2761 * try...ICH_FLASH_CYCLE_REPEAT_COUNT times.
2763 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2764 if (hsfsts.hsf_status.flcerr == 1)
2765 /* Repeat for some time before giving up. */
2767 if (hsfsts.hsf_status.flcdone == 0) {
2768 e_dbg("Timeout error - flash cycle did not complete.\n");
2771 } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT);
2777 * e1000_write_flash_byte_ich8lan - Write a single byte to NVM
2778 * @hw: pointer to the HW structure
2779 * @offset: The index of the byte to read.
2780 * @data: The byte to write to the NVM.
2782 * Writes a single byte to the NVM using the flash access registers.
2784 static s32 e1000_write_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset,
2787 u16 word = (u16)data;
2789 return e1000_write_flash_data_ich8lan(hw, offset, 1, word);
2793 * e1000_retry_write_flash_byte_ich8lan - Writes a single byte to NVM
2794 * @hw: pointer to the HW structure
2795 * @offset: The offset of the byte to write.
2796 * @byte: The byte to write to the NVM.
2798 * Writes a single byte to the NVM using the flash access registers.
2799 * Goes through a retry algorithm before giving up.
2801 static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw,
2802 u32 offset, u8 byte)
2805 u16 program_retries;
2807 ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
2811 for (program_retries = 0; program_retries < 100; program_retries++) {
2812 e_dbg("Retrying Byte %2.2X at offset %u\n", byte, offset);
2814 ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte);
2818 if (program_retries == 100)
2819 return -E1000_ERR_NVM;
2825 * e1000_erase_flash_bank_ich8lan - Erase a bank (4k) from NVM
2826 * @hw: pointer to the HW structure
2827 * @bank: 0 for first bank, 1 for second bank, etc.
2829 * Erases the bank specified. Each bank is a 4k block. Banks are 0 based.
2830 * bank N is 4096 * N + flash_reg_addr.
2832 static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank)
2834 struct e1000_nvm_info *nvm = &hw->nvm;
2835 union ich8_hws_flash_status hsfsts;
2836 union ich8_hws_flash_ctrl hsflctl;
2837 u32 flash_linear_addr;
2838 /* bank size is in 16bit words - adjust to bytes */
2839 u32 flash_bank_size = nvm->flash_bank_size * 2;
2842 s32 j, iteration, sector_size;
2844 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2847 * Determine HW Sector size: Read BERASE bits of hw flash status
2849 * 00: The Hw sector is 256 bytes, hence we need to erase 16
2850 * consecutive sectors. The start index for the nth Hw sector
2851 * can be calculated as = bank * 4096 + n * 256
2852 * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector.
2853 * The start index for the nth Hw sector can be calculated
2855 * 10: The Hw sector is 8K bytes, nth sector = bank * 8192
2856 * (ich9 only, otherwise error condition)
2857 * 11: The Hw sector is 64K bytes, nth sector = bank * 65536
2859 switch (hsfsts.hsf_status.berasesz) {
2861 /* Hw sector size 256 */
2862 sector_size = ICH_FLASH_SEG_SIZE_256;
2863 iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_256;
2866 sector_size = ICH_FLASH_SEG_SIZE_4K;
2870 sector_size = ICH_FLASH_SEG_SIZE_8K;
2874 sector_size = ICH_FLASH_SEG_SIZE_64K;
2878 return -E1000_ERR_NVM;
2881 /* Start with the base address, then add the sector offset. */
2882 flash_linear_addr = hw->nvm.flash_base_addr;
2883 flash_linear_addr += (bank) ? flash_bank_size : 0;
2885 for (j = 0; j < iteration ; j++) {
2888 ret_val = e1000_flash_cycle_init_ich8lan(hw);
2893 * Write a value 11 (block Erase) in Flash
2894 * Cycle field in hw flash control
2896 hsflctl.regval = er16flash(ICH_FLASH_HSFCTL);
2897 hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE;
2898 ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval);
2901 * Write the last 24 bits of an index within the
2902 * block into Flash Linear address field in Flash
2905 flash_linear_addr += (j * sector_size);
2906 ew32flash(ICH_FLASH_FADDR, flash_linear_addr);
2908 ret_val = e1000_flash_cycle_ich8lan(hw,
2909 ICH_FLASH_ERASE_COMMAND_TIMEOUT);
2914 * Check if FCERR is set to 1. If 1,
2915 * clear it and try the whole sequence
2916 * a few more times else Done
2918 hsfsts.regval = er16flash(ICH_FLASH_HSFSTS);
2919 if (hsfsts.hsf_status.flcerr == 1)
2920 /* repeat for some time before giving up */
2922 else if (hsfsts.hsf_status.flcdone == 0)
2924 } while (++count < ICH_FLASH_CYCLE_REPEAT_COUNT);
2931 * e1000_valid_led_default_ich8lan - Set the default LED settings
2932 * @hw: pointer to the HW structure
2933 * @data: Pointer to the LED settings
2935 * Reads the LED default settings from the NVM to data. If the NVM LED
2936 * settings is all 0's or F's, set the LED default to a valid LED default
2939 static s32 e1000_valid_led_default_ich8lan(struct e1000_hw *hw, u16 *data)
2943 ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data);
2945 e_dbg("NVM Read Error\n");
2949 if (*data == ID_LED_RESERVED_0000 ||
2950 *data == ID_LED_RESERVED_FFFF)
2951 *data = ID_LED_DEFAULT_ICH8LAN;
2957 * e1000_id_led_init_pchlan - store LED configurations
2958 * @hw: pointer to the HW structure
2960 * PCH does not control LEDs via the LEDCTL register, rather it uses
2961 * the PHY LED configuration register.
2963 * PCH also does not have an "always on" or "always off" mode which
2964 * complicates the ID feature. Instead of using the "on" mode to indicate
2965 * in ledctl_mode2 the LEDs to use for ID (see e1000e_id_led_init_generic()),
2966 * use "link_up" mode. The LEDs will still ID on request if there is no
2967 * link based on logic in e1000_led_[on|off]_pchlan().
2969 static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw)
2971 struct e1000_mac_info *mac = &hw->mac;
2973 const u32 ledctl_on = E1000_LEDCTL_MODE_LINK_UP;
2974 const u32 ledctl_off = E1000_LEDCTL_MODE_LINK_UP | E1000_PHY_LED0_IVRT;
2975 u16 data, i, temp, shift;
2977 /* Get default ID LED modes */
2978 ret_val = hw->nvm.ops.valid_led_default(hw, &data);
2982 mac->ledctl_default = er32(LEDCTL);
2983 mac->ledctl_mode1 = mac->ledctl_default;
2984 mac->ledctl_mode2 = mac->ledctl_default;
2986 for (i = 0; i < 4; i++) {
2987 temp = (data >> (i << 2)) & E1000_LEDCTL_LED0_MODE_MASK;
2990 case ID_LED_ON1_DEF2:
2991 case ID_LED_ON1_ON2:
2992 case ID_LED_ON1_OFF2:
2993 mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
2994 mac->ledctl_mode1 |= (ledctl_on << shift);
2996 case ID_LED_OFF1_DEF2:
2997 case ID_LED_OFF1_ON2:
2998 case ID_LED_OFF1_OFF2:
2999 mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift);
3000 mac->ledctl_mode1 |= (ledctl_off << shift);
3007 case ID_LED_DEF1_ON2:
3008 case ID_LED_ON1_ON2:
3009 case ID_LED_OFF1_ON2:
3010 mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
3011 mac->ledctl_mode2 |= (ledctl_on << shift);
3013 case ID_LED_DEF1_OFF2:
3014 case ID_LED_ON1_OFF2:
3015 case ID_LED_OFF1_OFF2:
3016 mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift);
3017 mac->ledctl_mode2 |= (ledctl_off << shift);
3029 * e1000_get_bus_info_ich8lan - Get/Set the bus type and width
3030 * @hw: pointer to the HW structure
3032 * ICH8 use the PCI Express bus, but does not contain a PCI Express Capability
3033 * register, so the the bus width is hard coded.
3035 static s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw)
3037 struct e1000_bus_info *bus = &hw->bus;
3040 ret_val = e1000e_get_bus_info_pcie(hw);
3043 * ICH devices are "PCI Express"-ish. They have
3044 * a configuration space, but do not contain
3045 * PCI Express Capability registers, so bus width
3046 * must be hardcoded.
3048 if (bus->width == e1000_bus_width_unknown)
3049 bus->width = e1000_bus_width_pcie_x1;
3055 * e1000_reset_hw_ich8lan - Reset the hardware
3056 * @hw: pointer to the HW structure
3058 * Does a full reset of the hardware which includes a reset of the PHY and
3061 static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw)
3063 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3069 * Prevent the PCI-E bus from sticking if there is no TLP connection
3070 * on the last TLP read/write transaction when MAC is reset.
3072 ret_val = e1000e_disable_pcie_master(hw);
3074 e_dbg("PCI-E Master disable polling has failed.\n");
3076 e_dbg("Masking off all interrupts\n");
3077 ew32(IMC, 0xffffffff);
3080 * Disable the Transmit and Receive units. Then delay to allow
3081 * any pending transactions to complete before we hit the MAC
3082 * with the global reset.
3085 ew32(TCTL, E1000_TCTL_PSP);
3088 usleep_range(10000, 20000);
3090 /* Workaround for ICH8 bit corruption issue in FIFO memory */
3091 if (hw->mac.type == e1000_ich8lan) {
3092 /* Set Tx and Rx buffer allocation to 8k apiece. */
3093 ew32(PBA, E1000_PBA_8K);
3094 /* Set Packet Buffer Size to 16k. */
3095 ew32(PBS, E1000_PBS_16K);
3098 if (hw->mac.type == e1000_pchlan) {
3099 /* Save the NVM K1 bit setting*/
3100 ret_val = e1000_read_nvm(hw, E1000_NVM_K1_CONFIG, 1, ®);
3104 if (reg & E1000_NVM_K1_ENABLE)
3105 dev_spec->nvm_k1_enabled = true;
3107 dev_spec->nvm_k1_enabled = false;
3112 if (!hw->phy.ops.check_reset_block(hw)) {
3114 * Full-chip reset requires MAC and PHY reset at the same
3115 * time to make sure the interface between MAC and the
3116 * external PHY is reset.
3118 ctrl |= E1000_CTRL_PHY_RST;
3121 * Gate automatic PHY configuration by hardware on
3124 if ((hw->mac.type == e1000_pch2lan) &&
3125 !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID))
3126 e1000_gate_hw_phy_config_ich8lan(hw, true);
3128 ret_val = e1000_acquire_swflag_ich8lan(hw);
3129 e_dbg("Issuing a global reset to ich8lan\n");
3130 ew32(CTRL, (ctrl | E1000_CTRL_RST));
3131 /* cannot issue a flush here because it hangs the hardware */
3135 clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state);
3137 if (ctrl & E1000_CTRL_PHY_RST) {
3138 ret_val = hw->phy.ops.get_cfg_done(hw);
3142 ret_val = e1000_post_phy_reset_ich8lan(hw);
3148 * For PCH, this write will make sure that any noise
3149 * will be detected as a CRC error and be dropped rather than show up
3150 * as a bad packet to the DMA engine.
3152 if (hw->mac.type == e1000_pchlan)
3153 ew32(CRC_OFFSET, 0x65656565);
3155 ew32(IMC, 0xffffffff);
3158 kab = er32(KABGTXD);
3159 kab |= E1000_KABGTXD_BGSQLBIAS;
3166 * e1000_init_hw_ich8lan - Initialize the hardware
3167 * @hw: pointer to the HW structure
3169 * Prepares the hardware for transmit and receive by doing the following:
3170 * - initialize hardware bits
3171 * - initialize LED identification
3172 * - setup receive address registers
3173 * - setup flow control
3174 * - setup transmit descriptors
3175 * - clear statistics
3177 static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw)
3179 struct e1000_mac_info *mac = &hw->mac;
3180 u32 ctrl_ext, txdctl, snoop;
3184 e1000_initialize_hw_bits_ich8lan(hw);
3186 /* Initialize identification LED */
3187 ret_val = mac->ops.id_led_init(hw);
3189 e_dbg("Error initializing identification LED\n");
3190 /* This is not fatal and we should not stop init due to this */
3192 /* Setup the receive address. */
3193 e1000e_init_rx_addrs(hw, mac->rar_entry_count);
3195 /* Zero out the Multicast HASH table */
3196 e_dbg("Zeroing the MTA\n");
3197 for (i = 0; i < mac->mta_reg_count; i++)
3198 E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
3201 * The 82578 Rx buffer will stall if wakeup is enabled in host and
3202 * the ME. Disable wakeup by clearing the host wakeup bit.
3203 * Reset the phy after disabling host wakeup to reset the Rx buffer.
3205 if (hw->phy.type == e1000_phy_82578) {
3206 e1e_rphy(hw, BM_PORT_GEN_CFG, &i);
3207 i &= ~BM_WUC_HOST_WU_BIT;
3208 e1e_wphy(hw, BM_PORT_GEN_CFG, i);
3209 ret_val = e1000_phy_hw_reset_ich8lan(hw);
3214 /* Setup link and flow control */
3215 ret_val = mac->ops.setup_link(hw);
3217 /* Set the transmit descriptor write-back policy for both queues */
3218 txdctl = er32(TXDCTL(0));
3219 txdctl = (txdctl & ~E1000_TXDCTL_WTHRESH) |
3220 E1000_TXDCTL_FULL_TX_DESC_WB;
3221 txdctl = (txdctl & ~E1000_TXDCTL_PTHRESH) |
3222 E1000_TXDCTL_MAX_TX_DESC_PREFETCH;
3223 ew32(TXDCTL(0), txdctl);
3224 txdctl = er32(TXDCTL(1));
3225 txdctl = (txdctl & ~E1000_TXDCTL_WTHRESH) |
3226 E1000_TXDCTL_FULL_TX_DESC_WB;
3227 txdctl = (txdctl & ~E1000_TXDCTL_PTHRESH) |
3228 E1000_TXDCTL_MAX_TX_DESC_PREFETCH;
3229 ew32(TXDCTL(1), txdctl);
3232 * ICH8 has opposite polarity of no_snoop bits.
3233 * By default, we should use snoop behavior.
3235 if (mac->type == e1000_ich8lan)
3236 snoop = PCIE_ICH8_SNOOP_ALL;
3238 snoop = (u32) ~(PCIE_NO_SNOOP_ALL);
3239 e1000e_set_pcie_no_snoop(hw, snoop);
3241 ctrl_ext = er32(CTRL_EXT);
3242 ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
3243 ew32(CTRL_EXT, ctrl_ext);
3246 * Clear all of the statistics registers (clear on read). It is
3247 * important that we do this after we have tried to establish link
3248 * because the symbol error count will increment wildly if there
3251 e1000_clear_hw_cntrs_ich8lan(hw);
3256 * e1000_initialize_hw_bits_ich8lan - Initialize required hardware bits
3257 * @hw: pointer to the HW structure
3259 * Sets/Clears required hardware bits necessary for correctly setting up the
3260 * hardware for transmit and receive.
3262 static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw)
3266 /* Extended Device Control */
3267 reg = er32(CTRL_EXT);
3269 /* Enable PHY low-power state when MAC is at D3 w/o WoL */
3270 if (hw->mac.type >= e1000_pchlan)
3271 reg |= E1000_CTRL_EXT_PHYPDEN;
3272 ew32(CTRL_EXT, reg);
3274 /* Transmit Descriptor Control 0 */
3275 reg = er32(TXDCTL(0));
3277 ew32(TXDCTL(0), reg);
3279 /* Transmit Descriptor Control 1 */
3280 reg = er32(TXDCTL(1));
3282 ew32(TXDCTL(1), reg);
3284 /* Transmit Arbitration Control 0 */
3285 reg = er32(TARC(0));
3286 if (hw->mac.type == e1000_ich8lan)
3287 reg |= (1 << 28) | (1 << 29);
3288 reg |= (1 << 23) | (1 << 24) | (1 << 26) | (1 << 27);
3291 /* Transmit Arbitration Control 1 */
3292 reg = er32(TARC(1));
3293 if (er32(TCTL) & E1000_TCTL_MULR)
3297 reg |= (1 << 24) | (1 << 26) | (1 << 30);
3301 if (hw->mac.type == e1000_ich8lan) {
3308 * work-around descriptor data corruption issue during nfs v2 udp
3309 * traffic, just disable the nfs filtering capability
3312 reg |= (E1000_RFCTL_NFSW_DIS | E1000_RFCTL_NFSR_DIS);
3317 * e1000_setup_link_ich8lan - Setup flow control and link settings
3318 * @hw: pointer to the HW structure
3320 * Determines which flow control settings to use, then configures flow
3321 * control. Calls the appropriate media-specific link configuration
3322 * function. Assuming the adapter has a valid link partner, a valid link
3323 * should be established. Assumes the hardware has previously been reset
3324 * and the transmitter and receiver are not enabled.
3326 static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw)
3330 if (hw->phy.ops.check_reset_block(hw))
3334 * ICH parts do not have a word in the NVM to determine
3335 * the default flow control setting, so we explicitly
3338 if (hw->fc.requested_mode == e1000_fc_default) {
3339 /* Workaround h/w hang when Tx flow control enabled */
3340 if (hw->mac.type == e1000_pchlan)
3341 hw->fc.requested_mode = e1000_fc_rx_pause;
3343 hw->fc.requested_mode = e1000_fc_full;
3347 * Save off the requested flow control mode for use later. Depending
3348 * on the link partner's capabilities, we may or may not use this mode.
3350 hw->fc.current_mode = hw->fc.requested_mode;
3352 e_dbg("After fix-ups FlowControl is now = %x\n",
3353 hw->fc.current_mode);
3355 /* Continue to configure the copper link. */
3356 ret_val = hw->mac.ops.setup_physical_interface(hw);
3360 ew32(FCTTV, hw->fc.pause_time);
3361 if ((hw->phy.type == e1000_phy_82578) ||
3362 (hw->phy.type == e1000_phy_82579) ||
3363 (hw->phy.type == e1000_phy_82577)) {
3364 ew32(FCRTV_PCH, hw->fc.refresh_time);
3366 ret_val = e1e_wphy(hw, PHY_REG(BM_PORT_CTRL_PAGE, 27),
3372 return e1000e_set_fc_watermarks(hw);
3376 * e1000_setup_copper_link_ich8lan - Configure MAC/PHY interface
3377 * @hw: pointer to the HW structure
3379 * Configures the kumeran interface to the PHY to wait the appropriate time
3380 * when polling the PHY, then call the generic setup_copper_link to finish
3381 * configuring the copper link.
3383 static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw)
3390 ctrl |= E1000_CTRL_SLU;
3391 ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
3395 * Set the mac to wait the maximum time between each iteration
3396 * and increase the max iterations when polling the phy;
3397 * this fixes erroneous timeouts at 10Mbps.
3399 ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_TIMEOUTS, 0xFFFF);
3402 ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
3407 ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_INBAND_PARAM,
3412 switch (hw->phy.type) {
3413 case e1000_phy_igp_3:
3414 ret_val = e1000e_copper_link_setup_igp(hw);
3419 case e1000_phy_82578:
3420 ret_val = e1000e_copper_link_setup_m88(hw);
3424 case e1000_phy_82577:
3425 case e1000_phy_82579:
3426 ret_val = e1000_copper_link_setup_82577(hw);
3431 ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, ®_data);
3435 reg_data &= ~IFE_PMC_AUTO_MDIX;
3437 switch (hw->phy.mdix) {
3439 reg_data &= ~IFE_PMC_FORCE_MDIX;
3442 reg_data |= IFE_PMC_FORCE_MDIX;
3446 reg_data |= IFE_PMC_AUTO_MDIX;
3449 ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, reg_data);
3457 return e1000e_setup_copper_link(hw);
3461 * e1000_get_link_up_info_ich8lan - Get current link speed and duplex
3462 * @hw: pointer to the HW structure
3463 * @speed: pointer to store current link speed
3464 * @duplex: pointer to store the current link duplex
3466 * Calls the generic get_speed_and_duplex to retrieve the current link
3467 * information and then calls the Kumeran lock loss workaround for links at
3470 static s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw, u16 *speed,
3475 ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex);
3479 if ((hw->mac.type == e1000_ich8lan) &&
3480 (hw->phy.type == e1000_phy_igp_3) &&
3481 (*speed == SPEED_1000)) {
3482 ret_val = e1000_kmrn_lock_loss_workaround_ich8lan(hw);
3489 * e1000_kmrn_lock_loss_workaround_ich8lan - Kumeran workaround
3490 * @hw: pointer to the HW structure
3492 * Work-around for 82566 Kumeran PCS lock loss:
3493 * On link status change (i.e. PCI reset, speed change) and link is up and
3495 * 0) if workaround is optionally disabled do nothing
3496 * 1) wait 1ms for Kumeran link to come up
3497 * 2) check Kumeran Diagnostic register PCS lock loss bit
3498 * 3) if not set the link is locked (all is good), otherwise...
3500 * 5) repeat up to 10 times
3501 * Note: this is only called for IGP3 copper when speed is 1gb.
3503 static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw)
3505 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3511 if (!dev_spec->kmrn_lock_loss_workaround_enabled)
3515 * Make sure link is up before proceeding. If not just return.
3516 * Attempting this while link is negotiating fouled up link
3519 ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link);
3523 for (i = 0; i < 10; i++) {
3524 /* read once to clear */
3525 ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data);
3528 /* and again to get new status */
3529 ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data);
3533 /* check for PCS lock */
3534 if (!(data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS))
3537 /* Issue PHY reset */
3538 e1000_phy_hw_reset(hw);
3541 /* Disable GigE link negotiation */
3542 phy_ctrl = er32(PHY_CTRL);
3543 phy_ctrl |= (E1000_PHY_CTRL_GBE_DISABLE |
3544 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
3545 ew32(PHY_CTRL, phy_ctrl);
3548 * Call gig speed drop workaround on Gig disable before accessing
3551 e1000e_gig_downshift_workaround_ich8lan(hw);
3553 /* unable to acquire PCS lock */
3554 return -E1000_ERR_PHY;
3558 * e1000e_set_kmrn_lock_loss_workaround_ich8lan - Set Kumeran workaround state
3559 * @hw: pointer to the HW structure
3560 * @state: boolean value used to set the current Kumeran workaround state
3562 * If ICH8, set the current Kumeran workaround state (enabled - true
3563 * /disabled - false).
3565 void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw,
3568 struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
3570 if (hw->mac.type != e1000_ich8lan) {
3571 e_dbg("Workaround applies to ICH8 only.\n");
3575 dev_spec->kmrn_lock_loss_workaround_enabled = state;
3579 * e1000_ipg3_phy_powerdown_workaround_ich8lan - Power down workaround on D3
3580 * @hw: pointer to the HW structure
3582 * Workaround for 82566 power-down on D3 entry:
3583 * 1) disable gigabit link
3584 * 2) write VR power-down enable
3586 * Continue if successful, else issue LCD reset and repeat
3588 void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw)
3594 if (hw->phy.type != e1000_phy_igp_3)
3597 /* Try the workaround twice (if needed) */
3600 reg = er32(PHY_CTRL);
3601 reg |= (E1000_PHY_CTRL_GBE_DISABLE |
3602 E1000_PHY_CTRL_NOND0A_GBE_DISABLE);
3603 ew32(PHY_CTRL, reg);
3606 * Call gig speed drop workaround on Gig disable before
3607 * accessing any PHY registers
3609 if (hw->mac.type == e1000_ich8lan)
3610 e1000e_gig_downshift_workaround_ich8lan(hw);
3612 /* Write VR power-down enable */
3613 e1e_rphy(hw, IGP3_VR_CTRL, &data);
3614 data &= ~IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
3615 e1e_wphy(hw, IGP3_VR_CTRL, data | IGP3_VR_CTRL_MODE_SHUTDOWN);
3617 /* Read it back and test */
3618 e1e_rphy(hw, IGP3_VR_CTRL, &data);
3619 data &= IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK;
3620 if ((data == IGP3_VR_CTRL_MODE_SHUTDOWN) || retry)
3623 /* Issue PHY reset and repeat at most one more time */
3625 ew32(CTRL, reg | E1000_CTRL_PHY_RST);
3631 * e1000e_gig_downshift_workaround_ich8lan - WoL from S5 stops working
3632 * @hw: pointer to the HW structure
3634 * Steps to take when dropping from 1Gb/s (eg. link cable removal (LSC),
3635 * LPLU, Gig disable, MDIC PHY reset):
3636 * 1) Set Kumeran Near-end loopback
3637 * 2) Clear Kumeran Near-end loopback
3638 * Should only be called for ICH8[m] devices with any 1G Phy.
3640 void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
3645 if ((hw->mac.type != e1000_ich8lan) || (hw->phy.type == e1000_phy_ife))
3648 ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
3652 reg_data |= E1000_KMRNCTRLSTA_DIAG_NELPBK;
3653 ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
3657 reg_data &= ~E1000_KMRNCTRLSTA_DIAG_NELPBK;
3658 ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
3663 * e1000_suspend_workarounds_ich8lan - workarounds needed during S0->Sx
3664 * @hw: pointer to the HW structure
3666 * During S0 to Sx transition, it is possible the link remains at gig
3667 * instead of negotiating to a lower speed. Before going to Sx, set
3668 * 'Gig Disable' to force link speed negotiation to a lower speed based on
3669 * the LPLU setting in the NVM or custom setting. For PCH and newer parts,
3670 * the OEM bits PHY register (LED, GbE disable and LPLU configurations) also
3671 * needs to be written.
3673 void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw)
3678 phy_ctrl = er32(PHY_CTRL);
3679 phy_ctrl |= E1000_PHY_CTRL_GBE_DISABLE;
3680 ew32(PHY_CTRL, phy_ctrl);
3682 if (hw->mac.type == e1000_ich8lan)
3683 e1000e_gig_downshift_workaround_ich8lan(hw);
3685 if (hw->mac.type >= e1000_pchlan) {
3686 e1000_oem_bits_config_ich8lan(hw, false);
3687 e1000_phy_hw_reset_ich8lan(hw);
3688 ret_val = hw->phy.ops.acquire(hw);
3691 e1000_write_smbus_addr(hw);
3692 hw->phy.ops.release(hw);
3697 * e1000_resume_workarounds_pchlan - workarounds needed during Sx->S0
3698 * @hw: pointer to the HW structure
3700 * During Sx to S0 transitions on non-managed devices or managed devices
3701 * on which PHY resets are not blocked, if the PHY registers cannot be
3702 * accessed properly by the s/w toggle the LANPHYPC value to power cycle
3705 void e1000_resume_workarounds_pchlan(struct e1000_hw *hw)
3707 u16 phy_id1, phy_id2;
3710 if ((hw->mac.type != e1000_pch2lan) ||
3711 hw->phy.ops.check_reset_block(hw))
3714 ret_val = hw->phy.ops.acquire(hw);
3716 e_dbg("Failed to acquire PHY semaphore in resume\n");
3720 /* Test access to the PHY registers by reading the ID regs */
3721 ret_val = hw->phy.ops.read_reg_locked(hw, PHY_ID1, &phy_id1);
3724 ret_val = hw->phy.ops.read_reg_locked(hw, PHY_ID2, &phy_id2);
3728 if (hw->phy.id == ((u32)(phy_id1 << 16) |
3729 (u32)(phy_id2 & PHY_REVISION_MASK)))
3732 e1000_toggle_lanphypc_value_ich8lan(hw);
3734 hw->phy.ops.release(hw);
3736 e1000_phy_hw_reset(hw);
3741 hw->phy.ops.release(hw);
3745 * e1000_cleanup_led_ich8lan - Restore the default LED operation
3746 * @hw: pointer to the HW structure
3748 * Return the LED back to the default configuration.
3750 static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw)
3752 if (hw->phy.type == e1000_phy_ife)
3753 return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0);
3755 ew32(LEDCTL, hw->mac.ledctl_default);
3760 * e1000_led_on_ich8lan - Turn LEDs on
3761 * @hw: pointer to the HW structure
3765 static s32 e1000_led_on_ich8lan(struct e1000_hw *hw)
3767 if (hw->phy.type == e1000_phy_ife)
3768 return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED,
3769 (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON));
3771 ew32(LEDCTL, hw->mac.ledctl_mode2);
3776 * e1000_led_off_ich8lan - Turn LEDs off
3777 * @hw: pointer to the HW structure
3779 * Turn off the LEDs.
3781 static s32 e1000_led_off_ich8lan(struct e1000_hw *hw)
3783 if (hw->phy.type == e1000_phy_ife)
3784 return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED,
3785 (IFE_PSCL_PROBE_MODE |
3786 IFE_PSCL_PROBE_LEDS_OFF));
3788 ew32(LEDCTL, hw->mac.ledctl_mode1);
3793 * e1000_setup_led_pchlan - Configures SW controllable LED
3794 * @hw: pointer to the HW structure
3796 * This prepares the SW controllable LED for use.
3798 static s32 e1000_setup_led_pchlan(struct e1000_hw *hw)
3800 return e1e_wphy(hw, HV_LED_CONFIG, (u16)hw->mac.ledctl_mode1);
3804 * e1000_cleanup_led_pchlan - Restore the default LED operation
3805 * @hw: pointer to the HW structure
3807 * Return the LED back to the default configuration.
3809 static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw)
3811 return e1e_wphy(hw, HV_LED_CONFIG, (u16)hw->mac.ledctl_default);
3815 * e1000_led_on_pchlan - Turn LEDs on
3816 * @hw: pointer to the HW structure
3820 static s32 e1000_led_on_pchlan(struct e1000_hw *hw)
3822 u16 data = (u16)hw->mac.ledctl_mode2;
3826 * If no link, then turn LED on by setting the invert bit
3827 * for each LED that's mode is "link_up" in ledctl_mode2.
3829 if (!(er32(STATUS) & E1000_STATUS_LU)) {
3830 for (i = 0; i < 3; i++) {
3831 led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
3832 if ((led & E1000_PHY_LED0_MODE_MASK) !=
3833 E1000_LEDCTL_MODE_LINK_UP)
3835 if (led & E1000_PHY_LED0_IVRT)
3836 data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
3838 data |= (E1000_PHY_LED0_IVRT << (i * 5));
3842 return e1e_wphy(hw, HV_LED_CONFIG, data);
3846 * e1000_led_off_pchlan - Turn LEDs off
3847 * @hw: pointer to the HW structure
3849 * Turn off the LEDs.
3851 static s32 e1000_led_off_pchlan(struct e1000_hw *hw)
3853 u16 data = (u16)hw->mac.ledctl_mode1;
3857 * If no link, then turn LED off by clearing the invert bit
3858 * for each LED that's mode is "link_up" in ledctl_mode1.
3860 if (!(er32(STATUS) & E1000_STATUS_LU)) {
3861 for (i = 0; i < 3; i++) {
3862 led = (data >> (i * 5)) & E1000_PHY_LED0_MASK;
3863 if ((led & E1000_PHY_LED0_MODE_MASK) !=
3864 E1000_LEDCTL_MODE_LINK_UP)
3866 if (led & E1000_PHY_LED0_IVRT)
3867 data &= ~(E1000_PHY_LED0_IVRT << (i * 5));
3869 data |= (E1000_PHY_LED0_IVRT << (i * 5));
3873 return e1e_wphy(hw, HV_LED_CONFIG, data);
3877 * e1000_get_cfg_done_ich8lan - Read config done bit after Full or PHY reset
3878 * @hw: pointer to the HW structure
3880 * Read appropriate register for the config done bit for completion status
3881 * and configure the PHY through s/w for EEPROM-less parts.
3883 * NOTE: some silicon which is EEPROM-less will fail trying to read the
3884 * config done bit, so only an error is logged and continues. If we were
3885 * to return with error, EEPROM-less silicon would not be able to be reset
3888 static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw)
3894 e1000e_get_cfg_done(hw);
3896 /* Wait for indication from h/w that it has completed basic config */
3897 if (hw->mac.type >= e1000_ich10lan) {
3898 e1000_lan_init_done_ich8lan(hw);
3900 ret_val = e1000e_get_auto_rd_done(hw);
3903 * When auto config read does not complete, do not
3904 * return with an error. This can happen in situations
3905 * where there is no eeprom and prevents getting link.
3907 e_dbg("Auto Read Done did not complete\n");
3912 /* Clear PHY Reset Asserted bit */
3913 status = er32(STATUS);
3914 if (status & E1000_STATUS_PHYRA)
3915 ew32(STATUS, status & ~E1000_STATUS_PHYRA);
3917 e_dbg("PHY Reset Asserted not set - needs delay\n");
3919 /* If EEPROM is not marked present, init the IGP 3 PHY manually */
3920 if (hw->mac.type <= e1000_ich9lan) {
3921 if (((er32(EECD) & E1000_EECD_PRES) == 0) &&
3922 (hw->phy.type == e1000_phy_igp_3)) {
3923 e1000e_phy_init_script_igp3(hw);
3926 if (e1000_valid_nvm_bank_detect_ich8lan(hw, &bank)) {
3927 /* Maybe we should do a basic PHY config */
3928 e_dbg("EEPROM not present\n");
3929 ret_val = -E1000_ERR_CONFIG;
3937 * e1000_power_down_phy_copper_ich8lan - Remove link during PHY power down
3938 * @hw: pointer to the HW structure
3940 * In the case of a PHY power down to save power, or to turn off link during a
3941 * driver unload, or wake on lan is not enabled, remove the link.
3943 static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw)
3945 /* If the management interface is not enabled, then power down */
3946 if (!(hw->mac.ops.check_mng_mode(hw) ||
3947 hw->phy.ops.check_reset_block(hw)))
3948 e1000_power_down_phy_copper(hw);
3952 * e1000_clear_hw_cntrs_ich8lan - Clear statistical counters
3953 * @hw: pointer to the HW structure
3955 * Clears hardware counters specific to the silicon family and calls
3956 * clear_hw_cntrs_generic to clear all general purpose counters.
3958 static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw)
3963 e1000e_clear_hw_cntrs_base(hw);
3979 /* Clear PHY statistics registers */
3980 if ((hw->phy.type == e1000_phy_82578) ||
3981 (hw->phy.type == e1000_phy_82579) ||
3982 (hw->phy.type == e1000_phy_82577)) {
3983 ret_val = hw->phy.ops.acquire(hw);
3986 ret_val = hw->phy.ops.set_page(hw,
3987 HV_STATS_PAGE << IGP_PAGE_SHIFT);
3990 hw->phy.ops.read_reg_page(hw, HV_SCC_UPPER, &phy_data);
3991 hw->phy.ops.read_reg_page(hw, HV_SCC_LOWER, &phy_data);
3992 hw->phy.ops.read_reg_page(hw, HV_ECOL_UPPER, &phy_data);
3993 hw->phy.ops.read_reg_page(hw, HV_ECOL_LOWER, &phy_data);
3994 hw->phy.ops.read_reg_page(hw, HV_MCC_UPPER, &phy_data);
3995 hw->phy.ops.read_reg_page(hw, HV_MCC_LOWER, &phy_data);
3996 hw->phy.ops.read_reg_page(hw, HV_LATECOL_UPPER, &phy_data);
3997 hw->phy.ops.read_reg_page(hw, HV_LATECOL_LOWER, &phy_data);
3998 hw->phy.ops.read_reg_page(hw, HV_COLC_UPPER, &phy_data);
3999 hw->phy.ops.read_reg_page(hw, HV_COLC_LOWER, &phy_data);
4000 hw->phy.ops.read_reg_page(hw, HV_DC_UPPER, &phy_data);
4001 hw->phy.ops.read_reg_page(hw, HV_DC_LOWER, &phy_data);
4002 hw->phy.ops.read_reg_page(hw, HV_TNCRS_UPPER, &phy_data);
4003 hw->phy.ops.read_reg_page(hw, HV_TNCRS_LOWER, &phy_data);
4005 hw->phy.ops.release(hw);
4009 static const struct e1000_mac_operations ich8_mac_ops = {
4010 /* check_mng_mode dependent on mac type */
4011 .check_for_link = e1000_check_for_copper_link_ich8lan,
4012 /* cleanup_led dependent on mac type */
4013 .clear_hw_cntrs = e1000_clear_hw_cntrs_ich8lan,
4014 .get_bus_info = e1000_get_bus_info_ich8lan,
4015 .set_lan_id = e1000_set_lan_id_single_port,
4016 .get_link_up_info = e1000_get_link_up_info_ich8lan,
4017 /* led_on dependent on mac type */
4018 /* led_off dependent on mac type */
4019 .update_mc_addr_list = e1000e_update_mc_addr_list_generic,
4020 .reset_hw = e1000_reset_hw_ich8lan,
4021 .init_hw = e1000_init_hw_ich8lan,
4022 .setup_link = e1000_setup_link_ich8lan,
4023 .setup_physical_interface= e1000_setup_copper_link_ich8lan,
4024 /* id_led_init dependent on mac type */
4027 static const struct e1000_phy_operations ich8_phy_ops = {
4028 .acquire = e1000_acquire_swflag_ich8lan,
4029 .check_reset_block = e1000_check_reset_block_ich8lan,
4031 .get_cfg_done = e1000_get_cfg_done_ich8lan,
4032 .get_cable_length = e1000e_get_cable_length_igp_2,
4033 .read_reg = e1000e_read_phy_reg_igp,
4034 .release = e1000_release_swflag_ich8lan,
4035 .reset = e1000_phy_hw_reset_ich8lan,
4036 .set_d0_lplu_state = e1000_set_d0_lplu_state_ich8lan,
4037 .set_d3_lplu_state = e1000_set_d3_lplu_state_ich8lan,
4038 .write_reg = e1000e_write_phy_reg_igp,
4041 static const struct e1000_nvm_operations ich8_nvm_ops = {
4042 .acquire = e1000_acquire_nvm_ich8lan,
4043 .read = e1000_read_nvm_ich8lan,
4044 .release = e1000_release_nvm_ich8lan,
4045 .update = e1000_update_nvm_checksum_ich8lan,
4046 .valid_led_default = e1000_valid_led_default_ich8lan,
4047 .validate = e1000_validate_nvm_checksum_ich8lan,
4048 .write = e1000_write_nvm_ich8lan,
4051 const struct e1000_info e1000_ich8_info = {
4052 .mac = e1000_ich8lan,
4053 .flags = FLAG_HAS_WOL
4055 | FLAG_HAS_CTRLEXT_ON_LOAD
4060 .max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN,
4061 .get_variants = e1000_get_variants_ich8lan,
4062 .mac_ops = &ich8_mac_ops,
4063 .phy_ops = &ich8_phy_ops,
4064 .nvm_ops = &ich8_nvm_ops,
4067 const struct e1000_info e1000_ich9_info = {
4068 .mac = e1000_ich9lan,
4069 .flags = FLAG_HAS_JUMBO_FRAMES
4072 | FLAG_HAS_CTRLEXT_ON_LOAD
4077 .max_hw_frame_size = DEFAULT_JUMBO,
4078 .get_variants = e1000_get_variants_ich8lan,
4079 .mac_ops = &ich8_mac_ops,
4080 .phy_ops = &ich8_phy_ops,
4081 .nvm_ops = &ich8_nvm_ops,
4084 const struct e1000_info e1000_ich10_info = {
4085 .mac = e1000_ich10lan,
4086 .flags = FLAG_HAS_JUMBO_FRAMES
4089 | FLAG_HAS_CTRLEXT_ON_LOAD
4094 .max_hw_frame_size = DEFAULT_JUMBO,
4095 .get_variants = e1000_get_variants_ich8lan,
4096 .mac_ops = &ich8_mac_ops,
4097 .phy_ops = &ich8_phy_ops,
4098 .nvm_ops = &ich8_nvm_ops,
4101 const struct e1000_info e1000_pch_info = {
4102 .mac = e1000_pchlan,
4103 .flags = FLAG_IS_ICH
4105 | FLAG_HAS_CTRLEXT_ON_LOAD
4108 | FLAG_HAS_JUMBO_FRAMES
4109 | FLAG_DISABLE_FC_PAUSE_TIME /* errata */
4111 .flags2 = FLAG2_HAS_PHY_STATS,
4113 .max_hw_frame_size = 4096,
4114 .get_variants = e1000_get_variants_ich8lan,
4115 .mac_ops = &ich8_mac_ops,
4116 .phy_ops = &ich8_phy_ops,
4117 .nvm_ops = &ich8_nvm_ops,
4120 const struct e1000_info e1000_pch2_info = {
4121 .mac = e1000_pch2lan,
4122 .flags = FLAG_IS_ICH
4124 | FLAG_HAS_CTRLEXT_ON_LOAD
4127 | FLAG_HAS_JUMBO_FRAMES
4129 .flags2 = FLAG2_HAS_PHY_STATS
4132 .max_hw_frame_size = DEFAULT_JUMBO,
4133 .get_variants = e1000_get_variants_ich8lan,
4134 .mac_ops = &ich8_mac_ops,
4135 .phy_ops = &ich8_phy_ops,
4136 .nvm_ops = &ich8_nvm_ops,