diff options
Diffstat (limited to 'drivers/net/e1000e/ich8lan.c')
-rw-r--r-- | drivers/net/e1000e/ich8lan.c | 2225 |
1 files changed, 2225 insertions, 0 deletions
diff --git a/drivers/net/e1000e/ich8lan.c b/drivers/net/e1000e/ich8lan.c new file mode 100644 index 000000000000..8f8139de1f48 --- /dev/null +++ b/drivers/net/e1000e/ich8lan.c | |||
@@ -0,0 +1,2225 @@ | |||
1 | /******************************************************************************* | ||
2 | |||
3 | Intel PRO/1000 Linux driver | ||
4 | Copyright(c) 1999 - 2007 Intel Corporation. | ||
5 | |||
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. | ||
9 | |||
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 | ||
13 | more details. | ||
14 | |||
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. | ||
18 | |||
19 | The full GNU General Public License is included in this distribution in | ||
20 | the file called "COPYING". | ||
21 | |||
22 | Contact Information: | ||
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 | ||
26 | |||
27 | *******************************************************************************/ | ||
28 | |||
29 | /* | ||
30 | * 82562G-2 10/100 Network Connection | ||
31 | * 82562GT 10/100 Network Connection | ||
32 | * 82562GT-2 10/100 Network Connection | ||
33 | * 82562V 10/100 Network Connection | ||
34 | * 82562V-2 10/100 Network Connection | ||
35 | * 82566DC-2 Gigabit Network Connection | ||
36 | * 82566DC Gigabit Network Connection | ||
37 | * 82566DM-2 Gigabit Network Connection | ||
38 | * 82566DM Gigabit Network Connection | ||
39 | * 82566MC Gigabit Network Connection | ||
40 | * 82566MM Gigabit Network Connection | ||
41 | */ | ||
42 | |||
43 | #include <linux/netdevice.h> | ||
44 | #include <linux/ethtool.h> | ||
45 | #include <linux/delay.h> | ||
46 | #include <linux/pci.h> | ||
47 | |||
48 | #include "e1000.h" | ||
49 | |||
50 | #define ICH_FLASH_GFPREG 0x0000 | ||
51 | #define ICH_FLASH_HSFSTS 0x0004 | ||
52 | #define ICH_FLASH_HSFCTL 0x0006 | ||
53 | #define ICH_FLASH_FADDR 0x0008 | ||
54 | #define ICH_FLASH_FDATA0 0x0010 | ||
55 | |||
56 | #define ICH_FLASH_READ_COMMAND_TIMEOUT 500 | ||
57 | #define ICH_FLASH_WRITE_COMMAND_TIMEOUT 500 | ||
58 | #define ICH_FLASH_ERASE_COMMAND_TIMEOUT 3000000 | ||
59 | #define ICH_FLASH_LINEAR_ADDR_MASK 0x00FFFFFF | ||
60 | #define ICH_FLASH_CYCLE_REPEAT_COUNT 10 | ||
61 | |||
62 | #define ICH_CYCLE_READ 0 | ||
63 | #define ICH_CYCLE_WRITE 2 | ||
64 | #define ICH_CYCLE_ERASE 3 | ||
65 | |||
66 | #define FLASH_GFPREG_BASE_MASK 0x1FFF | ||
67 | #define FLASH_SECTOR_ADDR_SHIFT 12 | ||
68 | |||
69 | #define ICH_FLASH_SEG_SIZE_256 256 | ||
70 | #define ICH_FLASH_SEG_SIZE_4K 4096 | ||
71 | #define ICH_FLASH_SEG_SIZE_8K 8192 | ||
72 | #define ICH_FLASH_SEG_SIZE_64K 65536 | ||
73 | |||
74 | |||
75 | #define E1000_ICH_FWSM_RSPCIPHY 0x00000040 /* Reset PHY on PCI Reset */ | ||
76 | |||
77 | #define E1000_ICH_MNG_IAMT_MODE 0x2 | ||
78 | |||
79 | #define ID_LED_DEFAULT_ICH8LAN ((ID_LED_DEF1_DEF2 << 12) | \ | ||
80 | (ID_LED_DEF1_OFF2 << 8) | \ | ||
81 | (ID_LED_DEF1_ON2 << 4) | \ | ||
82 | (ID_LED_DEF1_DEF2)) | ||
83 | |||
84 | #define E1000_ICH_NVM_SIG_WORD 0x13 | ||
85 | #define E1000_ICH_NVM_SIG_MASK 0xC000 | ||
86 | |||
87 | #define E1000_ICH8_LAN_INIT_TIMEOUT 1500 | ||
88 | |||
89 | #define E1000_FEXTNVM_SW_CONFIG 1 | ||
90 | #define E1000_FEXTNVM_SW_CONFIG_ICH8M (1 << 27) /* Bit redefined for ICH8M :/ */ | ||
91 | |||
92 | #define PCIE_ICH8_SNOOP_ALL PCIE_NO_SNOOP_ALL | ||
93 | |||
94 | #define E1000_ICH_RAR_ENTRIES 7 | ||
95 | |||
96 | #define PHY_PAGE_SHIFT 5 | ||
97 | #define PHY_REG(page, reg) (((page) << PHY_PAGE_SHIFT) | \ | ||
98 | ((reg) & MAX_PHY_REG_ADDRESS)) | ||
99 | #define IGP3_KMRN_DIAG PHY_REG(770, 19) /* KMRN Diagnostic */ | ||
100 | #define IGP3_VR_CTRL PHY_REG(776, 18) /* Voltage Regulator Control */ | ||
101 | |||
102 | #define IGP3_KMRN_DIAG_PCS_LOCK_LOSS 0x0002 | ||
103 | #define IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK 0x0300 | ||
104 | #define IGP3_VR_CTRL_MODE_SHUTDOWN 0x0200 | ||
105 | |||
106 | /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */ | ||
107 | /* Offset 04h HSFSTS */ | ||
108 | union ich8_hws_flash_status { | ||
109 | struct ich8_hsfsts { | ||
110 | u16 flcdone :1; /* bit 0 Flash Cycle Done */ | ||
111 | u16 flcerr :1; /* bit 1 Flash Cycle Error */ | ||
112 | u16 dael :1; /* bit 2 Direct Access error Log */ | ||
113 | u16 berasesz :2; /* bit 4:3 Sector Erase Size */ | ||
114 | u16 flcinprog :1; /* bit 5 flash cycle in Progress */ | ||
115 | u16 reserved1 :2; /* bit 13:6 Reserved */ | ||
116 | u16 reserved2 :6; /* bit 13:6 Reserved */ | ||
117 | u16 fldesvalid :1; /* bit 14 Flash Descriptor Valid */ | ||
118 | u16 flockdn :1; /* bit 15 Flash Config Lock-Down */ | ||
119 | } hsf_status; | ||
120 | u16 regval; | ||
121 | }; | ||
122 | |||
123 | /* ICH GbE Flash Hardware Sequencing Flash control Register bit breakdown */ | ||
124 | /* Offset 06h FLCTL */ | ||
125 | union ich8_hws_flash_ctrl { | ||
126 | struct ich8_hsflctl { | ||
127 | u16 flcgo :1; /* 0 Flash Cycle Go */ | ||
128 | u16 flcycle :2; /* 2:1 Flash Cycle */ | ||
129 | u16 reserved :5; /* 7:3 Reserved */ | ||
130 | u16 fldbcount :2; /* 9:8 Flash Data Byte Count */ | ||
131 | u16 flockdn :6; /* 15:10 Reserved */ | ||
132 | } hsf_ctrl; | ||
133 | u16 regval; | ||
134 | }; | ||
135 | |||
136 | /* ICH Flash Region Access Permissions */ | ||
137 | union ich8_hws_flash_regacc { | ||
138 | struct ich8_flracc { | ||
139 | u32 grra :8; /* 0:7 GbE region Read Access */ | ||
140 | u32 grwa :8; /* 8:15 GbE region Write Access */ | ||
141 | u32 gmrag :8; /* 23:16 GbE Master Read Access Grant */ | ||
142 | u32 gmwag :8; /* 31:24 GbE Master Write Access Grant */ | ||
143 | } hsf_flregacc; | ||
144 | u16 regval; | ||
145 | }; | ||
146 | |||
147 | static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw); | ||
148 | static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw); | ||
149 | static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw); | ||
150 | static s32 e1000_check_polarity_ife_ich8lan(struct e1000_hw *hw); | ||
151 | static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank); | ||
152 | static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw, | ||
153 | u32 offset, u8 byte); | ||
154 | static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset, | ||
155 | u16 *data); | ||
156 | static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset, | ||
157 | u8 size, u16 *data); | ||
158 | static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw); | ||
159 | static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw); | ||
160 | |||
161 | static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg) | ||
162 | { | ||
163 | return readw(hw->flash_address + reg); | ||
164 | } | ||
165 | |||
166 | static inline u32 __er32flash(struct e1000_hw *hw, unsigned long reg) | ||
167 | { | ||
168 | return readl(hw->flash_address + reg); | ||
169 | } | ||
170 | |||
171 | static inline void __ew16flash(struct e1000_hw *hw, unsigned long reg, u16 val) | ||
172 | { | ||
173 | writew(val, hw->flash_address + reg); | ||
174 | } | ||
175 | |||
176 | static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val) | ||
177 | { | ||
178 | writel(val, hw->flash_address + reg); | ||
179 | } | ||
180 | |||
181 | #define er16flash(reg) __er16flash(hw, (reg)) | ||
182 | #define er32flash(reg) __er32flash(hw, (reg)) | ||
183 | #define ew16flash(reg,val) __ew16flash(hw, (reg), (val)) | ||
184 | #define ew32flash(reg,val) __ew32flash(hw, (reg), (val)) | ||
185 | |||
186 | /** | ||
187 | * e1000_init_phy_params_ich8lan - Initialize PHY function pointers | ||
188 | * @hw: pointer to the HW structure | ||
189 | * | ||
190 | * Initialize family-specific PHY parameters and function pointers. | ||
191 | **/ | ||
192 | static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw) | ||
193 | { | ||
194 | struct e1000_phy_info *phy = &hw->phy; | ||
195 | s32 ret_val; | ||
196 | u16 i = 0; | ||
197 | |||
198 | phy->addr = 1; | ||
199 | phy->reset_delay_us = 100; | ||
200 | |||
201 | phy->id = 0; | ||
202 | while ((e1000_phy_unknown == e1000e_get_phy_type_from_id(phy->id)) && | ||
203 | (i++ < 100)) { | ||
204 | msleep(1); | ||
205 | ret_val = e1000e_get_phy_id(hw); | ||
206 | if (ret_val) | ||
207 | return ret_val; | ||
208 | } | ||
209 | |||
210 | /* Verify phy id */ | ||
211 | switch (phy->id) { | ||
212 | case IGP03E1000_E_PHY_ID: | ||
213 | phy->type = e1000_phy_igp_3; | ||
214 | phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; | ||
215 | break; | ||
216 | case IFE_E_PHY_ID: | ||
217 | case IFE_PLUS_E_PHY_ID: | ||
218 | case IFE_C_E_PHY_ID: | ||
219 | phy->type = e1000_phy_ife; | ||
220 | phy->autoneg_mask = E1000_ALL_NOT_GIG; | ||
221 | break; | ||
222 | default: | ||
223 | return -E1000_ERR_PHY; | ||
224 | break; | ||
225 | } | ||
226 | |||
227 | return 0; | ||
228 | } | ||
229 | |||
230 | /** | ||
231 | * e1000_init_nvm_params_ich8lan - Initialize NVM function pointers | ||
232 | * @hw: pointer to the HW structure | ||
233 | * | ||
234 | * Initialize family-specific NVM parameters and function | ||
235 | * pointers. | ||
236 | **/ | ||
237 | static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw) | ||
238 | { | ||
239 | struct e1000_nvm_info *nvm = &hw->nvm; | ||
240 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | ||
241 | u32 gfpreg; | ||
242 | u32 sector_base_addr; | ||
243 | u32 sector_end_addr; | ||
244 | u16 i; | ||
245 | |||
246 | /* Can't read flash registers if the register set isn't mapped. | ||
247 | */ | ||
248 | if (!hw->flash_address) { | ||
249 | hw_dbg(hw, "ERROR: Flash registers not mapped\n"); | ||
250 | return -E1000_ERR_CONFIG; | ||
251 | } | ||
252 | |||
253 | nvm->type = e1000_nvm_flash_sw; | ||
254 | |||
255 | gfpreg = er32flash(ICH_FLASH_GFPREG); | ||
256 | |||
257 | /* sector_X_addr is a "sector"-aligned address (4096 bytes) | ||
258 | * Add 1 to sector_end_addr since this sector is included in | ||
259 | * the overall size. */ | ||
260 | sector_base_addr = gfpreg & FLASH_GFPREG_BASE_MASK; | ||
261 | sector_end_addr = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK) + 1; | ||
262 | |||
263 | /* flash_base_addr is byte-aligned */ | ||
264 | nvm->flash_base_addr = sector_base_addr << FLASH_SECTOR_ADDR_SHIFT; | ||
265 | |||
266 | /* find total size of the NVM, then cut in half since the total | ||
267 | * size represents two separate NVM banks. */ | ||
268 | nvm->flash_bank_size = (sector_end_addr - sector_base_addr) | ||
269 | << FLASH_SECTOR_ADDR_SHIFT; | ||
270 | nvm->flash_bank_size /= 2; | ||
271 | /* Adjust to word count */ | ||
272 | nvm->flash_bank_size /= sizeof(u16); | ||
273 | |||
274 | nvm->word_size = E1000_ICH8_SHADOW_RAM_WORDS; | ||
275 | |||
276 | /* Clear shadow ram */ | ||
277 | for (i = 0; i < nvm->word_size; i++) { | ||
278 | dev_spec->shadow_ram[i].modified = 0; | ||
279 | dev_spec->shadow_ram[i].value = 0xFFFF; | ||
280 | } | ||
281 | |||
282 | return 0; | ||
283 | } | ||
284 | |||
285 | /** | ||
286 | * e1000_init_mac_params_ich8lan - Initialize MAC function pointers | ||
287 | * @hw: pointer to the HW structure | ||
288 | * | ||
289 | * Initialize family-specific MAC parameters and function | ||
290 | * pointers. | ||
291 | **/ | ||
292 | static s32 e1000_init_mac_params_ich8lan(struct e1000_adapter *adapter) | ||
293 | { | ||
294 | struct e1000_hw *hw = &adapter->hw; | ||
295 | struct e1000_mac_info *mac = &hw->mac; | ||
296 | |||
297 | /* Set media type function pointer */ | ||
298 | hw->media_type = e1000_media_type_copper; | ||
299 | |||
300 | /* Set mta register count */ | ||
301 | mac->mta_reg_count = 32; | ||
302 | /* Set rar entry count */ | ||
303 | mac->rar_entry_count = E1000_ICH_RAR_ENTRIES; | ||
304 | if (mac->type == e1000_ich8lan) | ||
305 | mac->rar_entry_count--; | ||
306 | /* Set if manageability features are enabled. */ | ||
307 | mac->arc_subsystem_valid = 1; | ||
308 | |||
309 | /* Enable PCS Lock-loss workaround for ICH8 */ | ||
310 | if (mac->type == e1000_ich8lan) | ||
311 | e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, 1); | ||
312 | |||
313 | return 0; | ||
314 | } | ||
315 | |||
316 | static s32 e1000_get_invariants_ich8lan(struct e1000_adapter *adapter) | ||
317 | { | ||
318 | struct e1000_hw *hw = &adapter->hw; | ||
319 | s32 rc; | ||
320 | |||
321 | rc = e1000_init_mac_params_ich8lan(adapter); | ||
322 | if (rc) | ||
323 | return rc; | ||
324 | |||
325 | rc = e1000_init_nvm_params_ich8lan(hw); | ||
326 | if (rc) | ||
327 | return rc; | ||
328 | |||
329 | rc = e1000_init_phy_params_ich8lan(hw); | ||
330 | if (rc) | ||
331 | return rc; | ||
332 | |||
333 | if ((adapter->hw.mac.type == e1000_ich8lan) && | ||
334 | (adapter->hw.phy.type == e1000_phy_igp_3)) | ||
335 | adapter->flags |= FLAG_LSC_GIG_SPEED_DROP; | ||
336 | |||
337 | return 0; | ||
338 | } | ||
339 | |||
340 | /** | ||
341 | * e1000_acquire_swflag_ich8lan - Acquire software control flag | ||
342 | * @hw: pointer to the HW structure | ||
343 | * | ||
344 | * Acquires the software control flag for performing NVM and PHY | ||
345 | * operations. This is a function pointer entry point only called by | ||
346 | * read/write routines for the PHY and NVM parts. | ||
347 | **/ | ||
348 | static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw) | ||
349 | { | ||
350 | u32 extcnf_ctrl; | ||
351 | u32 timeout = PHY_CFG_TIMEOUT; | ||
352 | |||
353 | while (timeout) { | ||
354 | extcnf_ctrl = er32(EXTCNF_CTRL); | ||
355 | extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; | ||
356 | ew32(EXTCNF_CTRL, extcnf_ctrl); | ||
357 | |||
358 | extcnf_ctrl = er32(EXTCNF_CTRL); | ||
359 | if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) | ||
360 | break; | ||
361 | mdelay(1); | ||
362 | timeout--; | ||
363 | } | ||
364 | |||
365 | if (!timeout) { | ||
366 | hw_dbg(hw, "FW or HW has locked the resource for too long.\n"); | ||
367 | return -E1000_ERR_CONFIG; | ||
368 | } | ||
369 | |||
370 | return 0; | ||
371 | } | ||
372 | |||
373 | /** | ||
374 | * e1000_release_swflag_ich8lan - Release software control flag | ||
375 | * @hw: pointer to the HW structure | ||
376 | * | ||
377 | * Releases the software control flag for performing NVM and PHY operations. | ||
378 | * This is a function pointer entry point only called by read/write | ||
379 | * routines for the PHY and NVM parts. | ||
380 | **/ | ||
381 | static void e1000_release_swflag_ich8lan(struct e1000_hw *hw) | ||
382 | { | ||
383 | u32 extcnf_ctrl; | ||
384 | |||
385 | extcnf_ctrl = er32(EXTCNF_CTRL); | ||
386 | extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; | ||
387 | ew32(EXTCNF_CTRL, extcnf_ctrl); | ||
388 | } | ||
389 | |||
390 | /** | ||
391 | * e1000_check_reset_block_ich8lan - Check if PHY reset is blocked | ||
392 | * @hw: pointer to the HW structure | ||
393 | * | ||
394 | * Checks if firmware is blocking the reset of the PHY. | ||
395 | * This is a function pointer entry point only called by | ||
396 | * reset routines. | ||
397 | **/ | ||
398 | static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw) | ||
399 | { | ||
400 | u32 fwsm; | ||
401 | |||
402 | fwsm = er32(FWSM); | ||
403 | |||
404 | return (fwsm & E1000_ICH_FWSM_RSPCIPHY) ? 0 : E1000_BLK_PHY_RESET; | ||
405 | } | ||
406 | |||
407 | /** | ||
408 | * e1000_phy_force_speed_duplex_ich8lan - Force PHY speed & duplex | ||
409 | * @hw: pointer to the HW structure | ||
410 | * | ||
411 | * Forces the speed and duplex settings of the PHY. | ||
412 | * This is a function pointer entry point only called by | ||
413 | * PHY setup routines. | ||
414 | **/ | ||
415 | static s32 e1000_phy_force_speed_duplex_ich8lan(struct e1000_hw *hw) | ||
416 | { | ||
417 | struct e1000_phy_info *phy = &hw->phy; | ||
418 | s32 ret_val; | ||
419 | u16 data; | ||
420 | bool link; | ||
421 | |||
422 | if (phy->type != e1000_phy_ife) { | ||
423 | ret_val = e1000e_phy_force_speed_duplex_igp(hw); | ||
424 | return ret_val; | ||
425 | } | ||
426 | |||
427 | ret_val = e1e_rphy(hw, PHY_CONTROL, &data); | ||
428 | if (ret_val) | ||
429 | return ret_val; | ||
430 | |||
431 | e1000e_phy_force_speed_duplex_setup(hw, &data); | ||
432 | |||
433 | ret_val = e1e_wphy(hw, PHY_CONTROL, data); | ||
434 | if (ret_val) | ||
435 | return ret_val; | ||
436 | |||
437 | /* Disable MDI-X support for 10/100 */ | ||
438 | ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data); | ||
439 | if (ret_val) | ||
440 | return ret_val; | ||
441 | |||
442 | data &= ~IFE_PMC_AUTO_MDIX; | ||
443 | data &= ~IFE_PMC_FORCE_MDIX; | ||
444 | |||
445 | ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, data); | ||
446 | if (ret_val) | ||
447 | return ret_val; | ||
448 | |||
449 | hw_dbg(hw, "IFE PMC: %X\n", data); | ||
450 | |||
451 | udelay(1); | ||
452 | |||
453 | if (phy->wait_for_link) { | ||
454 | hw_dbg(hw, "Waiting for forced speed/duplex link on IFE phy.\n"); | ||
455 | |||
456 | ret_val = e1000e_phy_has_link_generic(hw, | ||
457 | PHY_FORCE_LIMIT, | ||
458 | 100000, | ||
459 | &link); | ||
460 | if (ret_val) | ||
461 | return ret_val; | ||
462 | |||
463 | if (!link) | ||
464 | hw_dbg(hw, "Link taking longer than expected.\n"); | ||
465 | |||
466 | /* Try once more */ | ||
467 | ret_val = e1000e_phy_has_link_generic(hw, | ||
468 | PHY_FORCE_LIMIT, | ||
469 | 100000, | ||
470 | &link); | ||
471 | if (ret_val) | ||
472 | return ret_val; | ||
473 | } | ||
474 | |||
475 | return 0; | ||
476 | } | ||
477 | |||
478 | /** | ||
479 | * e1000_phy_hw_reset_ich8lan - Performs a PHY reset | ||
480 | * @hw: pointer to the HW structure | ||
481 | * | ||
482 | * Resets the PHY | ||
483 | * This is a function pointer entry point called by drivers | ||
484 | * or other shared routines. | ||
485 | **/ | ||
486 | static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) | ||
487 | { | ||
488 | struct e1000_phy_info *phy = &hw->phy; | ||
489 | u32 i; | ||
490 | u32 data, cnf_size, cnf_base_addr, sw_cfg_mask; | ||
491 | s32 ret_val; | ||
492 | u16 loop = E1000_ICH8_LAN_INIT_TIMEOUT; | ||
493 | u16 word_addr, reg_data, reg_addr, phy_page = 0; | ||
494 | |||
495 | ret_val = e1000e_phy_hw_reset_generic(hw); | ||
496 | if (ret_val) | ||
497 | return ret_val; | ||
498 | |||
499 | /* Initialize the PHY from the NVM on ICH platforms. This | ||
500 | * is needed due to an issue where the NVM configuration is | ||
501 | * not properly autoloaded after power transitions. | ||
502 | * Therefore, after each PHY reset, we will load the | ||
503 | * configuration data out of the NVM manually. | ||
504 | */ | ||
505 | if (hw->mac.type == e1000_ich8lan && phy->type == e1000_phy_igp_3) { | ||
506 | struct e1000_adapter *adapter = hw->adapter; | ||
507 | |||
508 | /* Check if SW needs configure the PHY */ | ||
509 | if ((adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_M_AMT) || | ||
510 | (adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_M)) | ||
511 | sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M; | ||
512 | else | ||
513 | sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG; | ||
514 | |||
515 | data = er32(FEXTNVM); | ||
516 | if (!(data & sw_cfg_mask)) | ||
517 | return 0; | ||
518 | |||
519 | /* Wait for basic configuration completes before proceeding*/ | ||
520 | do { | ||
521 | data = er32(STATUS); | ||
522 | data &= E1000_STATUS_LAN_INIT_DONE; | ||
523 | udelay(100); | ||
524 | } while ((!data) && --loop); | ||
525 | |||
526 | /* If basic configuration is incomplete before the above loop | ||
527 | * count reaches 0, loading the configuration from NVM will | ||
528 | * leave the PHY in a bad state possibly resulting in no link. | ||
529 | */ | ||
530 | if (loop == 0) { | ||
531 | hw_dbg(hw, "LAN_INIT_DONE not set, increase timeout\n"); | ||
532 | } | ||
533 | |||
534 | /* Clear the Init Done bit for the next init event */ | ||
535 | data = er32(STATUS); | ||
536 | data &= ~E1000_STATUS_LAN_INIT_DONE; | ||
537 | ew32(STATUS, data); | ||
538 | |||
539 | /* Make sure HW does not configure LCD from PHY | ||
540 | * extended configuration before SW configuration */ | ||
541 | data = er32(EXTCNF_CTRL); | ||
542 | if (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) | ||
543 | return 0; | ||
544 | |||
545 | cnf_size = er32(EXTCNF_SIZE); | ||
546 | cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK; | ||
547 | cnf_size >>= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT; | ||
548 | if (!cnf_size) | ||
549 | return 0; | ||
550 | |||
551 | cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK; | ||
552 | cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT; | ||
553 | |||
554 | /* Configure LCD from extended configuration | ||
555 | * region. */ | ||
556 | |||
557 | /* cnf_base_addr is in DWORD */ | ||
558 | word_addr = (u16)(cnf_base_addr << 1); | ||
559 | |||
560 | for (i = 0; i < cnf_size; i++) { | ||
561 | ret_val = e1000_read_nvm(hw, | ||
562 | (word_addr + i * 2), | ||
563 | 1, | ||
564 | ®_data); | ||
565 | if (ret_val) | ||
566 | return ret_val; | ||
567 | |||
568 | ret_val = e1000_read_nvm(hw, | ||
569 | (word_addr + i * 2 + 1), | ||
570 | 1, | ||
571 | ®_addr); | ||
572 | if (ret_val) | ||
573 | return ret_val; | ||
574 | |||
575 | /* Save off the PHY page for future writes. */ | ||
576 | if (reg_addr == IGP01E1000_PHY_PAGE_SELECT) { | ||
577 | phy_page = reg_data; | ||
578 | continue; | ||
579 | } | ||
580 | |||
581 | reg_addr |= phy_page; | ||
582 | |||
583 | ret_val = e1e_wphy(hw, (u32)reg_addr, reg_data); | ||
584 | if (ret_val) | ||
585 | return ret_val; | ||
586 | } | ||
587 | } | ||
588 | |||
589 | return 0; | ||
590 | } | ||
591 | |||
592 | /** | ||
593 | * e1000_get_phy_info_ife_ich8lan - Retrieves various IFE PHY states | ||
594 | * @hw: pointer to the HW structure | ||
595 | * | ||
596 | * Populates "phy" structure with various feature states. | ||
597 | * This function is only called by other family-specific | ||
598 | * routines. | ||
599 | **/ | ||
600 | static s32 e1000_get_phy_info_ife_ich8lan(struct e1000_hw *hw) | ||
601 | { | ||
602 | struct e1000_phy_info *phy = &hw->phy; | ||
603 | s32 ret_val; | ||
604 | u16 data; | ||
605 | bool link; | ||
606 | |||
607 | ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link); | ||
608 | if (ret_val) | ||
609 | return ret_val; | ||
610 | |||
611 | if (!link) { | ||
612 | hw_dbg(hw, "Phy info is only valid if link is up\n"); | ||
613 | return -E1000_ERR_CONFIG; | ||
614 | } | ||
615 | |||
616 | ret_val = e1e_rphy(hw, IFE_PHY_SPECIAL_CONTROL, &data); | ||
617 | if (ret_val) | ||
618 | return ret_val; | ||
619 | phy->polarity_correction = (!(data & IFE_PSC_AUTO_POLARITY_DISABLE)); | ||
620 | |||
621 | if (phy->polarity_correction) { | ||
622 | ret_val = e1000_check_polarity_ife_ich8lan(hw); | ||
623 | if (ret_val) | ||
624 | return ret_val; | ||
625 | } else { | ||
626 | /* Polarity is forced */ | ||
627 | phy->cable_polarity = (data & IFE_PSC_FORCE_POLARITY) | ||
628 | ? e1000_rev_polarity_reversed | ||
629 | : e1000_rev_polarity_normal; | ||
630 | } | ||
631 | |||
632 | ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data); | ||
633 | if (ret_val) | ||
634 | return ret_val; | ||
635 | |||
636 | phy->is_mdix = (data & IFE_PMC_MDIX_STATUS); | ||
637 | |||
638 | /* The following parameters are undefined for 10/100 operation. */ | ||
639 | phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED; | ||
640 | phy->local_rx = e1000_1000t_rx_status_undefined; | ||
641 | phy->remote_rx = e1000_1000t_rx_status_undefined; | ||
642 | |||
643 | return 0; | ||
644 | } | ||
645 | |||
646 | /** | ||
647 | * e1000_get_phy_info_ich8lan - Calls appropriate PHY type get_phy_info | ||
648 | * @hw: pointer to the HW structure | ||
649 | * | ||
650 | * Wrapper for calling the get_phy_info routines for the appropriate phy type. | ||
651 | * This is a function pointer entry point called by drivers | ||
652 | * or other shared routines. | ||
653 | **/ | ||
654 | static s32 e1000_get_phy_info_ich8lan(struct e1000_hw *hw) | ||
655 | { | ||
656 | switch (hw->phy.type) { | ||
657 | case e1000_phy_ife: | ||
658 | return e1000_get_phy_info_ife_ich8lan(hw); | ||
659 | break; | ||
660 | case e1000_phy_igp_3: | ||
661 | return e1000e_get_phy_info_igp(hw); | ||
662 | break; | ||
663 | default: | ||
664 | break; | ||
665 | } | ||
666 | |||
667 | return -E1000_ERR_PHY_TYPE; | ||
668 | } | ||
669 | |||
670 | /** | ||
671 | * e1000_check_polarity_ife_ich8lan - Check cable polarity for IFE PHY | ||
672 | * @hw: pointer to the HW structure | ||
673 | * | ||
674 | * Polarity is determined on the polarity reveral feature being enabled. | ||
675 | * This function is only called by other family-specific | ||
676 | * routines. | ||
677 | **/ | ||
678 | static s32 e1000_check_polarity_ife_ich8lan(struct e1000_hw *hw) | ||
679 | { | ||
680 | struct e1000_phy_info *phy = &hw->phy; | ||
681 | s32 ret_val; | ||
682 | u16 phy_data, offset, mask; | ||
683 | |||
684 | /* Polarity is determined based on the reversal feature | ||
685 | * being enabled. | ||
686 | */ | ||
687 | if (phy->polarity_correction) { | ||
688 | offset = IFE_PHY_EXTENDED_STATUS_CONTROL; | ||
689 | mask = IFE_PESC_POLARITY_REVERSED; | ||
690 | } else { | ||
691 | offset = IFE_PHY_SPECIAL_CONTROL; | ||
692 | mask = IFE_PSC_FORCE_POLARITY; | ||
693 | } | ||
694 | |||
695 | ret_val = e1e_rphy(hw, offset, &phy_data); | ||
696 | |||
697 | if (!ret_val) | ||
698 | phy->cable_polarity = (phy_data & mask) | ||
699 | ? e1000_rev_polarity_reversed | ||
700 | : e1000_rev_polarity_normal; | ||
701 | |||
702 | return ret_val; | ||
703 | } | ||
704 | |||
705 | /** | ||
706 | * e1000_set_d0_lplu_state_ich8lan - Set Low Power Linkup D0 state | ||
707 | * @hw: pointer to the HW structure | ||
708 | * @active: TRUE to enable LPLU, FALSE to disable | ||
709 | * | ||
710 | * Sets the LPLU D0 state according to the active flag. When | ||
711 | * activating LPLU this function also disables smart speed | ||
712 | * and vice versa. LPLU will not be activated unless the | ||
713 | * device autonegotiation advertisement meets standards of | ||
714 | * either 10 or 10/100 or 10/100/1000 at all duplexes. | ||
715 | * This is a function pointer entry point only called by | ||
716 | * PHY setup routines. | ||
717 | **/ | ||
718 | static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active) | ||
719 | { | ||
720 | struct e1000_phy_info *phy = &hw->phy; | ||
721 | u32 phy_ctrl; | ||
722 | s32 ret_val = 0; | ||
723 | u16 data; | ||
724 | |||
725 | if (phy->type != e1000_phy_igp_3) | ||
726 | return ret_val; | ||
727 | |||
728 | phy_ctrl = er32(PHY_CTRL); | ||
729 | |||
730 | if (active) { | ||
731 | phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU; | ||
732 | ew32(PHY_CTRL, phy_ctrl); | ||
733 | |||
734 | /* Call gig speed drop workaround on LPLU before accessing | ||
735 | * any PHY registers */ | ||
736 | if ((hw->mac.type == e1000_ich8lan) && | ||
737 | (hw->phy.type == e1000_phy_igp_3)) | ||
738 | e1000e_gig_downshift_workaround_ich8lan(hw); | ||
739 | |||
740 | /* When LPLU is enabled, we should disable SmartSpeed */ | ||
741 | ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data); | ||
742 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; | ||
743 | ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); | ||
744 | if (ret_val) | ||
745 | return ret_val; | ||
746 | } else { | ||
747 | phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU; | ||
748 | ew32(PHY_CTRL, phy_ctrl); | ||
749 | |||
750 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used | ||
751 | * during Dx states where the power conservation is most | ||
752 | * important. During driver activity we should enable | ||
753 | * SmartSpeed, so performance is maintained. */ | ||
754 | if (phy->smart_speed == e1000_smart_speed_on) { | ||
755 | ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, | ||
756 | &data); | ||
757 | if (ret_val) | ||
758 | return ret_val; | ||
759 | |||
760 | data |= IGP01E1000_PSCFR_SMART_SPEED; | ||
761 | ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, | ||
762 | data); | ||
763 | if (ret_val) | ||
764 | return ret_val; | ||
765 | } else if (phy->smart_speed == e1000_smart_speed_off) { | ||
766 | ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, | ||
767 | &data); | ||
768 | if (ret_val) | ||
769 | return ret_val; | ||
770 | |||
771 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; | ||
772 | ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, | ||
773 | data); | ||
774 | if (ret_val) | ||
775 | return ret_val; | ||
776 | } | ||
777 | } | ||
778 | |||
779 | return 0; | ||
780 | } | ||
781 | |||
782 | /** | ||
783 | * e1000_set_d3_lplu_state_ich8lan - Set Low Power Linkup D3 state | ||
784 | * @hw: pointer to the HW structure | ||
785 | * @active: TRUE to enable LPLU, FALSE to disable | ||
786 | * | ||
787 | * Sets the LPLU D3 state according to the active flag. When | ||
788 | * activating LPLU this function also disables smart speed | ||
789 | * and vice versa. LPLU will not be activated unless the | ||
790 | * device autonegotiation advertisement meets standards of | ||
791 | * either 10 or 10/100 or 10/100/1000 at all duplexes. | ||
792 | * This is a function pointer entry point only called by | ||
793 | * PHY setup routines. | ||
794 | **/ | ||
795 | static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active) | ||
796 | { | ||
797 | struct e1000_phy_info *phy = &hw->phy; | ||
798 | u32 phy_ctrl; | ||
799 | s32 ret_val; | ||
800 | u16 data; | ||
801 | |||
802 | phy_ctrl = er32(PHY_CTRL); | ||
803 | |||
804 | if (!active) { | ||
805 | phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU; | ||
806 | ew32(PHY_CTRL, phy_ctrl); | ||
807 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used | ||
808 | * during Dx states where the power conservation is most | ||
809 | * important. During driver activity we should enable | ||
810 | * SmartSpeed, so performance is maintained. */ | ||
811 | if (phy->smart_speed == e1000_smart_speed_on) { | ||
812 | ret_val = e1e_rphy(hw, | ||
813 | IGP01E1000_PHY_PORT_CONFIG, | ||
814 | &data); | ||
815 | if (ret_val) | ||
816 | return ret_val; | ||
817 | |||
818 | data |= IGP01E1000_PSCFR_SMART_SPEED; | ||
819 | ret_val = e1e_wphy(hw, | ||
820 | IGP01E1000_PHY_PORT_CONFIG, | ||
821 | data); | ||
822 | if (ret_val) | ||
823 | return ret_val; | ||
824 | } else if (phy->smart_speed == e1000_smart_speed_off) { | ||
825 | ret_val = e1e_rphy(hw, | ||
826 | IGP01E1000_PHY_PORT_CONFIG, | ||
827 | &data); | ||
828 | if (ret_val) | ||
829 | return ret_val; | ||
830 | |||
831 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; | ||
832 | ret_val = e1e_wphy(hw, | ||
833 | IGP01E1000_PHY_PORT_CONFIG, | ||
834 | data); | ||
835 | if (ret_val) | ||
836 | return ret_val; | ||
837 | } | ||
838 | } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) || | ||
839 | (phy->autoneg_advertised == E1000_ALL_NOT_GIG) || | ||
840 | (phy->autoneg_advertised == E1000_ALL_10_SPEED)) { | ||
841 | phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU; | ||
842 | ew32(PHY_CTRL, phy_ctrl); | ||
843 | |||
844 | /* Call gig speed drop workaround on LPLU before accessing | ||
845 | * any PHY registers */ | ||
846 | if ((hw->mac.type == e1000_ich8lan) && | ||
847 | (hw->phy.type == e1000_phy_igp_3)) | ||
848 | e1000e_gig_downshift_workaround_ich8lan(hw); | ||
849 | |||
850 | /* When LPLU is enabled, we should disable SmartSpeed */ | ||
851 | ret_val = e1e_rphy(hw, | ||
852 | IGP01E1000_PHY_PORT_CONFIG, | ||
853 | &data); | ||
854 | if (ret_val) | ||
855 | return ret_val; | ||
856 | |||
857 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; | ||
858 | ret_val = e1e_wphy(hw, | ||
859 | IGP01E1000_PHY_PORT_CONFIG, | ||
860 | data); | ||
861 | } | ||
862 | |||
863 | return 0; | ||
864 | } | ||
865 | |||
866 | /** | ||
867 | * e1000_read_nvm_ich8lan - Read word(s) from the NVM | ||
868 | * @hw: pointer to the HW structure | ||
869 | * @offset: The offset (in bytes) of the word(s) to read. | ||
870 | * @words: Size of data to read in words | ||
871 | * @data: Pointer to the word(s) to read at offset. | ||
872 | * | ||
873 | * Reads a word(s) from the NVM using the flash access registers. | ||
874 | **/ | ||
875 | static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words, | ||
876 | u16 *data) | ||
877 | { | ||
878 | struct e1000_nvm_info *nvm = &hw->nvm; | ||
879 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | ||
880 | u32 act_offset; | ||
881 | s32 ret_val; | ||
882 | u16 i, word; | ||
883 | |||
884 | if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) || | ||
885 | (words == 0)) { | ||
886 | hw_dbg(hw, "nvm parameter(s) out of bounds\n"); | ||
887 | return -E1000_ERR_NVM; | ||
888 | } | ||
889 | |||
890 | ret_val = e1000_acquire_swflag_ich8lan(hw); | ||
891 | if (ret_val) | ||
892 | return ret_val; | ||
893 | |||
894 | /* Start with the bank offset, then add the relative offset. */ | ||
895 | act_offset = (er32(EECD) & E1000_EECD_SEC1VAL) | ||
896 | ? nvm->flash_bank_size | ||
897 | : 0; | ||
898 | act_offset += offset; | ||
899 | |||
900 | for (i = 0; i < words; i++) { | ||
901 | if ((dev_spec->shadow_ram) && | ||
902 | (dev_spec->shadow_ram[offset+i].modified)) { | ||
903 | data[i] = dev_spec->shadow_ram[offset+i].value; | ||
904 | } else { | ||
905 | ret_val = e1000_read_flash_word_ich8lan(hw, | ||
906 | act_offset + i, | ||
907 | &word); | ||
908 | if (ret_val) | ||
909 | break; | ||
910 | data[i] = word; | ||
911 | } | ||
912 | } | ||
913 | |||
914 | e1000_release_swflag_ich8lan(hw); | ||
915 | |||
916 | return ret_val; | ||
917 | } | ||
918 | |||
919 | /** | ||
920 | * e1000_flash_cycle_init_ich8lan - Initialize flash | ||
921 | * @hw: pointer to the HW structure | ||
922 | * | ||
923 | * This function does initial flash setup so that a new read/write/erase cycle | ||
924 | * can be started. | ||
925 | **/ | ||
926 | static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw) | ||
927 | { | ||
928 | union ich8_hws_flash_status hsfsts; | ||
929 | s32 ret_val = -E1000_ERR_NVM; | ||
930 | s32 i = 0; | ||
931 | |||
932 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | ||
933 | |||
934 | /* Check if the flash descriptor is valid */ | ||
935 | if (hsfsts.hsf_status.fldesvalid == 0) { | ||
936 | hw_dbg(hw, "Flash descriptor invalid. " | ||
937 | "SW Sequencing must be used."); | ||
938 | return -E1000_ERR_NVM; | ||
939 | } | ||
940 | |||
941 | /* Clear FCERR and DAEL in hw status by writing 1 */ | ||
942 | hsfsts.hsf_status.flcerr = 1; | ||
943 | hsfsts.hsf_status.dael = 1; | ||
944 | |||
945 | ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval); | ||
946 | |||
947 | /* Either we should have a hardware SPI cycle in progress | ||
948 | * bit to check against, in order to start a new cycle or | ||
949 | * FDONE bit should be changed in the hardware so that it | ||
950 | * is 1 after harware reset, which can then be used as an | ||
951 | * indication whether a cycle is in progress or has been | ||
952 | * completed. | ||
953 | */ | ||
954 | |||
955 | if (hsfsts.hsf_status.flcinprog == 0) { | ||
956 | /* There is no cycle running at present, | ||
957 | * so we can start a cycle */ | ||
958 | /* Begin by setting Flash Cycle Done. */ | ||
959 | hsfsts.hsf_status.flcdone = 1; | ||
960 | ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval); | ||
961 | ret_val = 0; | ||
962 | } else { | ||
963 | /* otherwise poll for sometime so the current | ||
964 | * cycle has a chance to end before giving up. */ | ||
965 | for (i = 0; i < ICH_FLASH_READ_COMMAND_TIMEOUT; i++) { | ||
966 | hsfsts.regval = __er16flash(hw, ICH_FLASH_HSFSTS); | ||
967 | if (hsfsts.hsf_status.flcinprog == 0) { | ||
968 | ret_val = 0; | ||
969 | break; | ||
970 | } | ||
971 | udelay(1); | ||
972 | } | ||
973 | if (ret_val == 0) { | ||
974 | /* Successful in waiting for previous cycle to timeout, | ||
975 | * now set the Flash Cycle Done. */ | ||
976 | hsfsts.hsf_status.flcdone = 1; | ||
977 | ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval); | ||
978 | } else { | ||
979 | hw_dbg(hw, "Flash controller busy, cannot get access"); | ||
980 | } | ||
981 | } | ||
982 | |||
983 | return ret_val; | ||
984 | } | ||
985 | |||
986 | /** | ||
987 | * e1000_flash_cycle_ich8lan - Starts flash cycle (read/write/erase) | ||
988 | * @hw: pointer to the HW structure | ||
989 | * @timeout: maximum time to wait for completion | ||
990 | * | ||
991 | * This function starts a flash cycle and waits for its completion. | ||
992 | **/ | ||
993 | static s32 e1000_flash_cycle_ich8lan(struct e1000_hw *hw, u32 timeout) | ||
994 | { | ||
995 | union ich8_hws_flash_ctrl hsflctl; | ||
996 | union ich8_hws_flash_status hsfsts; | ||
997 | s32 ret_val = -E1000_ERR_NVM; | ||
998 | u32 i = 0; | ||
999 | |||
1000 | /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */ | ||
1001 | hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); | ||
1002 | hsflctl.hsf_ctrl.flcgo = 1; | ||
1003 | ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); | ||
1004 | |||
1005 | /* wait till FDONE bit is set to 1 */ | ||
1006 | do { | ||
1007 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | ||
1008 | if (hsfsts.hsf_status.flcdone == 1) | ||
1009 | break; | ||
1010 | udelay(1); | ||
1011 | } while (i++ < timeout); | ||
1012 | |||
1013 | if (hsfsts.hsf_status.flcdone == 1 && hsfsts.hsf_status.flcerr == 0) | ||
1014 | return 0; | ||
1015 | |||
1016 | return ret_val; | ||
1017 | } | ||
1018 | |||
1019 | /** | ||
1020 | * e1000_read_flash_word_ich8lan - Read word from flash | ||
1021 | * @hw: pointer to the HW structure | ||
1022 | * @offset: offset to data location | ||
1023 | * @data: pointer to the location for storing the data | ||
1024 | * | ||
1025 | * Reads the flash word at offset into data. Offset is converted | ||
1026 | * to bytes before read. | ||
1027 | **/ | ||
1028 | static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset, | ||
1029 | u16 *data) | ||
1030 | { | ||
1031 | /* Must convert offset into bytes. */ | ||
1032 | offset <<= 1; | ||
1033 | |||
1034 | return e1000_read_flash_data_ich8lan(hw, offset, 2, data); | ||
1035 | } | ||
1036 | |||
1037 | /** | ||
1038 | * e1000_read_flash_data_ich8lan - Read byte or word from NVM | ||
1039 | * @hw: pointer to the HW structure | ||
1040 | * @offset: The offset (in bytes) of the byte or word to read. | ||
1041 | * @size: Size of data to read, 1=byte 2=word | ||
1042 | * @data: Pointer to the word to store the value read. | ||
1043 | * | ||
1044 | * Reads a byte or word from the NVM using the flash access registers. | ||
1045 | **/ | ||
1046 | static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset, | ||
1047 | u8 size, u16 *data) | ||
1048 | { | ||
1049 | union ich8_hws_flash_status hsfsts; | ||
1050 | union ich8_hws_flash_ctrl hsflctl; | ||
1051 | u32 flash_linear_addr; | ||
1052 | u32 flash_data = 0; | ||
1053 | s32 ret_val = -E1000_ERR_NVM; | ||
1054 | u8 count = 0; | ||
1055 | |||
1056 | if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK) | ||
1057 | return -E1000_ERR_NVM; | ||
1058 | |||
1059 | flash_linear_addr = (ICH_FLASH_LINEAR_ADDR_MASK & offset) + | ||
1060 | hw->nvm.flash_base_addr; | ||
1061 | |||
1062 | do { | ||
1063 | udelay(1); | ||
1064 | /* Steps */ | ||
1065 | ret_val = e1000_flash_cycle_init_ich8lan(hw); | ||
1066 | if (ret_val != 0) | ||
1067 | break; | ||
1068 | |||
1069 | hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); | ||
1070 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ | ||
1071 | hsflctl.hsf_ctrl.fldbcount = size - 1; | ||
1072 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ; | ||
1073 | ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); | ||
1074 | |||
1075 | ew32flash(ICH_FLASH_FADDR, flash_linear_addr); | ||
1076 | |||
1077 | ret_val = e1000_flash_cycle_ich8lan(hw, | ||
1078 | ICH_FLASH_READ_COMMAND_TIMEOUT); | ||
1079 | |||
1080 | /* Check if FCERR is set to 1, if set to 1, clear it | ||
1081 | * and try the whole sequence a few more times, else | ||
1082 | * read in (shift in) the Flash Data0, the order is | ||
1083 | * least significant byte first msb to lsb */ | ||
1084 | if (ret_val == 0) { | ||
1085 | flash_data = er32flash(ICH_FLASH_FDATA0); | ||
1086 | if (size == 1) { | ||
1087 | *data = (u8)(flash_data & 0x000000FF); | ||
1088 | } else if (size == 2) { | ||
1089 | *data = (u16)(flash_data & 0x0000FFFF); | ||
1090 | } | ||
1091 | break; | ||
1092 | } else { | ||
1093 | /* If we've gotten here, then things are probably | ||
1094 | * completely hosed, but if the error condition is | ||
1095 | * detected, it won't hurt to give it another try... | ||
1096 | * ICH_FLASH_CYCLE_REPEAT_COUNT times. | ||
1097 | */ | ||
1098 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | ||
1099 | if (hsfsts.hsf_status.flcerr == 1) { | ||
1100 | /* Repeat for some time before giving up. */ | ||
1101 | continue; | ||
1102 | } else if (hsfsts.hsf_status.flcdone == 0) { | ||
1103 | hw_dbg(hw, "Timeout error - flash cycle " | ||
1104 | "did not complete."); | ||
1105 | break; | ||
1106 | } | ||
1107 | } | ||
1108 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); | ||
1109 | |||
1110 | return ret_val; | ||
1111 | } | ||
1112 | |||
1113 | /** | ||
1114 | * e1000_write_nvm_ich8lan - Write word(s) to the NVM | ||
1115 | * @hw: pointer to the HW structure | ||
1116 | * @offset: The offset (in bytes) of the word(s) to write. | ||
1117 | * @words: Size of data to write in words | ||
1118 | * @data: Pointer to the word(s) to write at offset. | ||
1119 | * | ||
1120 | * Writes a byte or word to the NVM using the flash access registers. | ||
1121 | **/ | ||
1122 | static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words, | ||
1123 | u16 *data) | ||
1124 | { | ||
1125 | struct e1000_nvm_info *nvm = &hw->nvm; | ||
1126 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | ||
1127 | s32 ret_val; | ||
1128 | u16 i; | ||
1129 | |||
1130 | if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) || | ||
1131 | (words == 0)) { | ||
1132 | hw_dbg(hw, "nvm parameter(s) out of bounds\n"); | ||
1133 | return -E1000_ERR_NVM; | ||
1134 | } | ||
1135 | |||
1136 | ret_val = e1000_acquire_swflag_ich8lan(hw); | ||
1137 | if (ret_val) | ||
1138 | return ret_val; | ||
1139 | |||
1140 | for (i = 0; i < words; i++) { | ||
1141 | dev_spec->shadow_ram[offset+i].modified = 1; | ||
1142 | dev_spec->shadow_ram[offset+i].value = data[i]; | ||
1143 | } | ||
1144 | |||
1145 | e1000_release_swflag_ich8lan(hw); | ||
1146 | |||
1147 | return 0; | ||
1148 | } | ||
1149 | |||
1150 | /** | ||
1151 | * e1000_update_nvm_checksum_ich8lan - Update the checksum for NVM | ||
1152 | * @hw: pointer to the HW structure | ||
1153 | * | ||
1154 | * The NVM checksum is updated by calling the generic update_nvm_checksum, | ||
1155 | * which writes the checksum to the shadow ram. The changes in the shadow | ||
1156 | * ram are then committed to the EEPROM by processing each bank at a time | ||
1157 | * checking for the modified bit and writing only the pending changes. | ||
1158 | * After a succesful commit, the shadow ram is cleared and is ready for | ||
1159 | * future writes. | ||
1160 | **/ | ||
1161 | static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw) | ||
1162 | { | ||
1163 | struct e1000_nvm_info *nvm = &hw->nvm; | ||
1164 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | ||
1165 | u32 i, act_offset, new_bank_offset, old_bank_offset; | ||
1166 | s32 ret_val; | ||
1167 | u16 data; | ||
1168 | |||
1169 | ret_val = e1000e_update_nvm_checksum_generic(hw); | ||
1170 | if (ret_val) | ||
1171 | return ret_val;; | ||
1172 | |||
1173 | if (nvm->type != e1000_nvm_flash_sw) | ||
1174 | return ret_val;; | ||
1175 | |||
1176 | ret_val = e1000_acquire_swflag_ich8lan(hw); | ||
1177 | if (ret_val) | ||
1178 | return ret_val;; | ||
1179 | |||
1180 | /* We're writing to the opposite bank so if we're on bank 1, | ||
1181 | * write to bank 0 etc. We also need to erase the segment that | ||
1182 | * is going to be written */ | ||
1183 | if (!(er32(EECD) & E1000_EECD_SEC1VAL)) { | ||
1184 | new_bank_offset = nvm->flash_bank_size; | ||
1185 | old_bank_offset = 0; | ||
1186 | e1000_erase_flash_bank_ich8lan(hw, 1); | ||
1187 | } else { | ||
1188 | old_bank_offset = nvm->flash_bank_size; | ||
1189 | new_bank_offset = 0; | ||
1190 | e1000_erase_flash_bank_ich8lan(hw, 0); | ||
1191 | } | ||
1192 | |||
1193 | for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) { | ||
1194 | /* Determine whether to write the value stored | ||
1195 | * in the other NVM bank or a modified value stored | ||
1196 | * in the shadow RAM */ | ||
1197 | if (dev_spec->shadow_ram[i].modified) { | ||
1198 | data = dev_spec->shadow_ram[i].value; | ||
1199 | } else { | ||
1200 | e1000_read_flash_word_ich8lan(hw, | ||
1201 | i + old_bank_offset, | ||
1202 | &data); | ||
1203 | } | ||
1204 | |||
1205 | /* If the word is 0x13, then make sure the signature bits | ||
1206 | * (15:14) are 11b until the commit has completed. | ||
1207 | * This will allow us to write 10b which indicates the | ||
1208 | * signature is valid. We want to do this after the write | ||
1209 | * has completed so that we don't mark the segment valid | ||
1210 | * while the write is still in progress */ | ||
1211 | if (i == E1000_ICH_NVM_SIG_WORD) | ||
1212 | data |= E1000_ICH_NVM_SIG_MASK; | ||
1213 | |||
1214 | /* Convert offset to bytes. */ | ||
1215 | act_offset = (i + new_bank_offset) << 1; | ||
1216 | |||
1217 | udelay(100); | ||
1218 | /* Write the bytes to the new bank. */ | ||
1219 | ret_val = e1000_retry_write_flash_byte_ich8lan(hw, | ||
1220 | act_offset, | ||
1221 | (u8)data); | ||
1222 | if (ret_val) | ||
1223 | break; | ||
1224 | |||
1225 | udelay(100); | ||
1226 | ret_val = e1000_retry_write_flash_byte_ich8lan(hw, | ||
1227 | act_offset + 1, | ||
1228 | (u8)(data >> 8)); | ||
1229 | if (ret_val) | ||
1230 | break; | ||
1231 | } | ||
1232 | |||
1233 | /* Don't bother writing the segment valid bits if sector | ||
1234 | * programming failed. */ | ||
1235 | if (ret_val) { | ||
1236 | hw_dbg(hw, "Flash commit failed.\n"); | ||
1237 | e1000_release_swflag_ich8lan(hw); | ||
1238 | return ret_val; | ||
1239 | } | ||
1240 | |||
1241 | /* Finally validate the new segment by setting bit 15:14 | ||
1242 | * to 10b in word 0x13 , this can be done without an | ||
1243 | * erase as well since these bits are 11 to start with | ||
1244 | * and we need to change bit 14 to 0b */ | ||
1245 | act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD; | ||
1246 | e1000_read_flash_word_ich8lan(hw, act_offset, &data); | ||
1247 | data &= 0xBFFF; | ||
1248 | ret_val = e1000_retry_write_flash_byte_ich8lan(hw, | ||
1249 | act_offset * 2 + 1, | ||
1250 | (u8)(data >> 8)); | ||
1251 | if (ret_val) { | ||
1252 | e1000_release_swflag_ich8lan(hw); | ||
1253 | return ret_val; | ||
1254 | } | ||
1255 | |||
1256 | /* And invalidate the previously valid segment by setting | ||
1257 | * its signature word (0x13) high_byte to 0b. This can be | ||
1258 | * done without an erase because flash erase sets all bits | ||
1259 | * to 1's. We can write 1's to 0's without an erase */ | ||
1260 | act_offset = (old_bank_offset + E1000_ICH_NVM_SIG_WORD) * 2 + 1; | ||
1261 | ret_val = e1000_retry_write_flash_byte_ich8lan(hw, act_offset, 0); | ||
1262 | if (ret_val) { | ||
1263 | e1000_release_swflag_ich8lan(hw); | ||
1264 | return ret_val; | ||
1265 | } | ||
1266 | |||
1267 | /* Great! Everything worked, we can now clear the cached entries. */ | ||
1268 | for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) { | ||
1269 | dev_spec->shadow_ram[i].modified = 0; | ||
1270 | dev_spec->shadow_ram[i].value = 0xFFFF; | ||
1271 | } | ||
1272 | |||
1273 | e1000_release_swflag_ich8lan(hw); | ||
1274 | |||
1275 | /* Reload the EEPROM, or else modifications will not appear | ||
1276 | * until after the next adapter reset. | ||
1277 | */ | ||
1278 | e1000e_reload_nvm(hw); | ||
1279 | msleep(10); | ||
1280 | |||
1281 | return ret_val; | ||
1282 | } | ||
1283 | |||
1284 | /** | ||
1285 | * e1000_validate_nvm_checksum_ich8lan - Validate EEPROM checksum | ||
1286 | * @hw: pointer to the HW structure | ||
1287 | * | ||
1288 | * Check to see if checksum needs to be fixed by reading bit 6 in word 0x19. | ||
1289 | * If the bit is 0, that the EEPROM had been modified, but the checksum was not | ||
1290 | * calculated, in which case we need to calculate the checksum and set bit 6. | ||
1291 | **/ | ||
1292 | static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw) | ||
1293 | { | ||
1294 | s32 ret_val; | ||
1295 | u16 data; | ||
1296 | |||
1297 | /* Read 0x19 and check bit 6. If this bit is 0, the checksum | ||
1298 | * needs to be fixed. This bit is an indication that the NVM | ||
1299 | * was prepared by OEM software and did not calculate the | ||
1300 | * checksum...a likely scenario. | ||
1301 | */ | ||
1302 | ret_val = e1000_read_nvm(hw, 0x19, 1, &data); | ||
1303 | if (ret_val) | ||
1304 | return ret_val; | ||
1305 | |||
1306 | if ((data & 0x40) == 0) { | ||
1307 | data |= 0x40; | ||
1308 | ret_val = e1000_write_nvm(hw, 0x19, 1, &data); | ||
1309 | if (ret_val) | ||
1310 | return ret_val; | ||
1311 | ret_val = e1000e_update_nvm_checksum(hw); | ||
1312 | if (ret_val) | ||
1313 | return ret_val; | ||
1314 | } | ||
1315 | |||
1316 | return e1000e_validate_nvm_checksum_generic(hw); | ||
1317 | } | ||
1318 | |||
1319 | /** | ||
1320 | * e1000_write_flash_data_ich8lan - Writes bytes to the NVM | ||
1321 | * @hw: pointer to the HW structure | ||
1322 | * @offset: The offset (in bytes) of the byte/word to read. | ||
1323 | * @size: Size of data to read, 1=byte 2=word | ||
1324 | * @data: The byte(s) to write to the NVM. | ||
1325 | * | ||
1326 | * Writes one/two bytes to the NVM using the flash access registers. | ||
1327 | **/ | ||
1328 | static s32 e1000_write_flash_data_ich8lan(struct e1000_hw *hw, u32 offset, | ||
1329 | u8 size, u16 data) | ||
1330 | { | ||
1331 | union ich8_hws_flash_status hsfsts; | ||
1332 | union ich8_hws_flash_ctrl hsflctl; | ||
1333 | u32 flash_linear_addr; | ||
1334 | u32 flash_data = 0; | ||
1335 | s32 ret_val; | ||
1336 | u8 count = 0; | ||
1337 | |||
1338 | if (size < 1 || size > 2 || data > size * 0xff || | ||
1339 | offset > ICH_FLASH_LINEAR_ADDR_MASK) | ||
1340 | return -E1000_ERR_NVM; | ||
1341 | |||
1342 | flash_linear_addr = (ICH_FLASH_LINEAR_ADDR_MASK & offset) + | ||
1343 | hw->nvm.flash_base_addr; | ||
1344 | |||
1345 | do { | ||
1346 | udelay(1); | ||
1347 | /* Steps */ | ||
1348 | ret_val = e1000_flash_cycle_init_ich8lan(hw); | ||
1349 | if (ret_val) | ||
1350 | break; | ||
1351 | |||
1352 | hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); | ||
1353 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ | ||
1354 | hsflctl.hsf_ctrl.fldbcount = size -1; | ||
1355 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE; | ||
1356 | ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); | ||
1357 | |||
1358 | ew32flash(ICH_FLASH_FADDR, flash_linear_addr); | ||
1359 | |||
1360 | if (size == 1) | ||
1361 | flash_data = (u32)data & 0x00FF; | ||
1362 | else | ||
1363 | flash_data = (u32)data; | ||
1364 | |||
1365 | ew32flash(ICH_FLASH_FDATA0, flash_data); | ||
1366 | |||
1367 | /* check if FCERR is set to 1 , if set to 1, clear it | ||
1368 | * and try the whole sequence a few more times else done */ | ||
1369 | ret_val = e1000_flash_cycle_ich8lan(hw, | ||
1370 | ICH_FLASH_WRITE_COMMAND_TIMEOUT); | ||
1371 | if (!ret_val) | ||
1372 | break; | ||
1373 | |||
1374 | /* If we're here, then things are most likely | ||
1375 | * completely hosed, but if the error condition | ||
1376 | * is detected, it won't hurt to give it another | ||
1377 | * try...ICH_FLASH_CYCLE_REPEAT_COUNT times. | ||
1378 | */ | ||
1379 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | ||
1380 | if (hsfsts.hsf_status.flcerr == 1) | ||
1381 | /* Repeat for some time before giving up. */ | ||
1382 | continue; | ||
1383 | if (hsfsts.hsf_status.flcdone == 0) { | ||
1384 | hw_dbg(hw, "Timeout error - flash cycle " | ||
1385 | "did not complete."); | ||
1386 | break; | ||
1387 | } | ||
1388 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); | ||
1389 | |||
1390 | return ret_val; | ||
1391 | } | ||
1392 | |||
1393 | /** | ||
1394 | * e1000_write_flash_byte_ich8lan - Write a single byte to NVM | ||
1395 | * @hw: pointer to the HW structure | ||
1396 | * @offset: The index of the byte to read. | ||
1397 | * @data: The byte to write to the NVM. | ||
1398 | * | ||
1399 | * Writes a single byte to the NVM using the flash access registers. | ||
1400 | **/ | ||
1401 | static s32 e1000_write_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset, | ||
1402 | u8 data) | ||
1403 | { | ||
1404 | u16 word = (u16)data; | ||
1405 | |||
1406 | return e1000_write_flash_data_ich8lan(hw, offset, 1, word); | ||
1407 | } | ||
1408 | |||
1409 | /** | ||
1410 | * e1000_retry_write_flash_byte_ich8lan - Writes a single byte to NVM | ||
1411 | * @hw: pointer to the HW structure | ||
1412 | * @offset: The offset of the byte to write. | ||
1413 | * @byte: The byte to write to the NVM. | ||
1414 | * | ||
1415 | * Writes a single byte to the NVM using the flash access registers. | ||
1416 | * Goes through a retry algorithm before giving up. | ||
1417 | **/ | ||
1418 | static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw, | ||
1419 | u32 offset, u8 byte) | ||
1420 | { | ||
1421 | s32 ret_val; | ||
1422 | u16 program_retries; | ||
1423 | |||
1424 | ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte); | ||
1425 | if (!ret_val) | ||
1426 | return ret_val; | ||
1427 | |||
1428 | for (program_retries = 0; program_retries < 100; program_retries++) { | ||
1429 | hw_dbg(hw, "Retrying Byte %2.2X at offset %u\n", byte, offset); | ||
1430 | udelay(100); | ||
1431 | ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte); | ||
1432 | if (!ret_val) | ||
1433 | break; | ||
1434 | } | ||
1435 | if (program_retries == 100) | ||
1436 | return -E1000_ERR_NVM; | ||
1437 | |||
1438 | return 0; | ||
1439 | } | ||
1440 | |||
1441 | /** | ||
1442 | * e1000_erase_flash_bank_ich8lan - Erase a bank (4k) from NVM | ||
1443 | * @hw: pointer to the HW structure | ||
1444 | * @bank: 0 for first bank, 1 for second bank, etc. | ||
1445 | * | ||
1446 | * Erases the bank specified. Each bank is a 4k block. Banks are 0 based. | ||
1447 | * bank N is 4096 * N + flash_reg_addr. | ||
1448 | **/ | ||
1449 | static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank) | ||
1450 | { | ||
1451 | struct e1000_nvm_info *nvm = &hw->nvm; | ||
1452 | union ich8_hws_flash_status hsfsts; | ||
1453 | union ich8_hws_flash_ctrl hsflctl; | ||
1454 | u32 flash_linear_addr; | ||
1455 | /* bank size is in 16bit words - adjust to bytes */ | ||
1456 | u32 flash_bank_size = nvm->flash_bank_size * 2; | ||
1457 | s32 ret_val; | ||
1458 | s32 count = 0; | ||
1459 | s32 iteration; | ||
1460 | s32 sector_size; | ||
1461 | s32 j; | ||
1462 | |||
1463 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | ||
1464 | |||
1465 | /* Determine HW Sector size: Read BERASE bits of hw flash status | ||
1466 | * register */ | ||
1467 | /* 00: The Hw sector is 256 bytes, hence we need to erase 16 | ||
1468 | * consecutive sectors. The start index for the nth Hw sector | ||
1469 | * can be calculated as = bank * 4096 + n * 256 | ||
1470 | * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector. | ||
1471 | * The start index for the nth Hw sector can be calculated | ||
1472 | * as = bank * 4096 | ||
1473 | * 10: The Hw sector is 8K bytes, nth sector = bank * 8192 | ||
1474 | * (ich9 only, otherwise error condition) | ||
1475 | * 11: The Hw sector is 64K bytes, nth sector = bank * 65536 | ||
1476 | */ | ||
1477 | switch (hsfsts.hsf_status.berasesz) { | ||
1478 | case 0: | ||
1479 | /* Hw sector size 256 */ | ||
1480 | sector_size = ICH_FLASH_SEG_SIZE_256; | ||
1481 | iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_256; | ||
1482 | break; | ||
1483 | case 1: | ||
1484 | sector_size = ICH_FLASH_SEG_SIZE_4K; | ||
1485 | iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_4K; | ||
1486 | break; | ||
1487 | case 2: | ||
1488 | if (hw->mac.type == e1000_ich9lan) { | ||
1489 | sector_size = ICH_FLASH_SEG_SIZE_8K; | ||
1490 | iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_8K; | ||
1491 | } else { | ||
1492 | return -E1000_ERR_NVM; | ||
1493 | } | ||
1494 | break; | ||
1495 | case 3: | ||
1496 | sector_size = ICH_FLASH_SEG_SIZE_64K; | ||
1497 | iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_64K; | ||
1498 | break; | ||
1499 | default: | ||
1500 | return -E1000_ERR_NVM; | ||
1501 | } | ||
1502 | |||
1503 | /* Start with the base address, then add the sector offset. */ | ||
1504 | flash_linear_addr = hw->nvm.flash_base_addr; | ||
1505 | flash_linear_addr += (bank) ? (sector_size * iteration) : 0; | ||
1506 | |||
1507 | for (j = 0; j < iteration ; j++) { | ||
1508 | do { | ||
1509 | /* Steps */ | ||
1510 | ret_val = e1000_flash_cycle_init_ich8lan(hw); | ||
1511 | if (ret_val) | ||
1512 | return ret_val; | ||
1513 | |||
1514 | /* Write a value 11 (block Erase) in Flash | ||
1515 | * Cycle field in hw flash control */ | ||
1516 | hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); | ||
1517 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE; | ||
1518 | ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); | ||
1519 | |||
1520 | /* Write the last 24 bits of an index within the | ||
1521 | * block into Flash Linear address field in Flash | ||
1522 | * Address. | ||
1523 | */ | ||
1524 | flash_linear_addr += (j * sector_size); | ||
1525 | ew32flash(ICH_FLASH_FADDR, flash_linear_addr); | ||
1526 | |||
1527 | ret_val = e1000_flash_cycle_ich8lan(hw, | ||
1528 | ICH_FLASH_ERASE_COMMAND_TIMEOUT); | ||
1529 | if (ret_val == 0) | ||
1530 | break; | ||
1531 | |||
1532 | /* Check if FCERR is set to 1. If 1, | ||
1533 | * clear it and try the whole sequence | ||
1534 | * a few more times else Done */ | ||
1535 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | ||
1536 | if (hsfsts.hsf_status.flcerr == 1) | ||
1537 | /* repeat for some time before | ||
1538 | * giving up */ | ||
1539 | continue; | ||
1540 | else if (hsfsts.hsf_status.flcdone == 0) | ||
1541 | return ret_val; | ||
1542 | } while (++count < ICH_FLASH_CYCLE_REPEAT_COUNT); | ||
1543 | } | ||
1544 | |||
1545 | return 0; | ||
1546 | } | ||
1547 | |||
1548 | /** | ||
1549 | * e1000_valid_led_default_ich8lan - Set the default LED settings | ||
1550 | * @hw: pointer to the HW structure | ||
1551 | * @data: Pointer to the LED settings | ||
1552 | * | ||
1553 | * Reads the LED default settings from the NVM to data. If the NVM LED | ||
1554 | * settings is all 0's or F's, set the LED default to a valid LED default | ||
1555 | * setting. | ||
1556 | **/ | ||
1557 | static s32 e1000_valid_led_default_ich8lan(struct e1000_hw *hw, u16 *data) | ||
1558 | { | ||
1559 | s32 ret_val; | ||
1560 | |||
1561 | ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data); | ||
1562 | if (ret_val) { | ||
1563 | hw_dbg(hw, "NVM Read Error\n"); | ||
1564 | return ret_val; | ||
1565 | } | ||
1566 | |||
1567 | if (*data == ID_LED_RESERVED_0000 || | ||
1568 | *data == ID_LED_RESERVED_FFFF) | ||
1569 | *data = ID_LED_DEFAULT_ICH8LAN; | ||
1570 | |||
1571 | return 0; | ||
1572 | } | ||
1573 | |||
1574 | /** | ||
1575 | * e1000_get_bus_info_ich8lan - Get/Set the bus type and width | ||
1576 | * @hw: pointer to the HW structure | ||
1577 | * | ||
1578 | * ICH8 use the PCI Express bus, but does not contain a PCI Express Capability | ||
1579 | * register, so the the bus width is hard coded. | ||
1580 | **/ | ||
1581 | static s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw) | ||
1582 | { | ||
1583 | struct e1000_bus_info *bus = &hw->bus; | ||
1584 | s32 ret_val; | ||
1585 | |||
1586 | ret_val = e1000e_get_bus_info_pcie(hw); | ||
1587 | |||
1588 | /* ICH devices are "PCI Express"-ish. They have | ||
1589 | * a configuration space, but do not contain | ||
1590 | * PCI Express Capability registers, so bus width | ||
1591 | * must be hardcoded. | ||
1592 | */ | ||
1593 | if (bus->width == e1000_bus_width_unknown) | ||
1594 | bus->width = e1000_bus_width_pcie_x1; | ||
1595 | |||
1596 | return ret_val; | ||
1597 | } | ||
1598 | |||
1599 | /** | ||
1600 | * e1000_reset_hw_ich8lan - Reset the hardware | ||
1601 | * @hw: pointer to the HW structure | ||
1602 | * | ||
1603 | * Does a full reset of the hardware which includes a reset of the PHY and | ||
1604 | * MAC. | ||
1605 | **/ | ||
1606 | static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) | ||
1607 | { | ||
1608 | u32 ctrl, icr, kab; | ||
1609 | s32 ret_val; | ||
1610 | |||
1611 | /* Prevent the PCI-E bus from sticking if there is no TLP connection | ||
1612 | * on the last TLP read/write transaction when MAC is reset. | ||
1613 | */ | ||
1614 | ret_val = e1000e_disable_pcie_master(hw); | ||
1615 | if (ret_val) { | ||
1616 | hw_dbg(hw, "PCI-E Master disable polling has failed.\n"); | ||
1617 | } | ||
1618 | |||
1619 | hw_dbg(hw, "Masking off all interrupts\n"); | ||
1620 | ew32(IMC, 0xffffffff); | ||
1621 | |||
1622 | /* Disable the Transmit and Receive units. Then delay to allow | ||
1623 | * any pending transactions to complete before we hit the MAC | ||
1624 | * with the global reset. | ||
1625 | */ | ||
1626 | ew32(RCTL, 0); | ||
1627 | ew32(TCTL, E1000_TCTL_PSP); | ||
1628 | e1e_flush(); | ||
1629 | |||
1630 | msleep(10); | ||
1631 | |||
1632 | /* Workaround for ICH8 bit corruption issue in FIFO memory */ | ||
1633 | if (hw->mac.type == e1000_ich8lan) { | ||
1634 | /* Set Tx and Rx buffer allocation to 8k apiece. */ | ||
1635 | ew32(PBA, E1000_PBA_8K); | ||
1636 | /* Set Packet Buffer Size to 16k. */ | ||
1637 | ew32(PBS, E1000_PBS_16K); | ||
1638 | } | ||
1639 | |||
1640 | ctrl = er32(CTRL); | ||
1641 | |||
1642 | if (!e1000_check_reset_block(hw)) { | ||
1643 | /* PHY HW reset requires MAC CORE reset at the same | ||
1644 | * time to make sure the interface between MAC and the | ||
1645 | * external PHY is reset. | ||
1646 | */ | ||
1647 | ctrl |= E1000_CTRL_PHY_RST; | ||
1648 | } | ||
1649 | ret_val = e1000_acquire_swflag_ich8lan(hw); | ||
1650 | hw_dbg(hw, "Issuing a global reset to ich8lan"); | ||
1651 | ew32(CTRL, (ctrl | E1000_CTRL_RST)); | ||
1652 | msleep(20); | ||
1653 | |||
1654 | ret_val = e1000e_get_auto_rd_done(hw); | ||
1655 | if (ret_val) { | ||
1656 | /* | ||
1657 | * When auto config read does not complete, do not | ||
1658 | * return with an error. This can happen in situations | ||
1659 | * where there is no eeprom and prevents getting link. | ||
1660 | */ | ||
1661 | hw_dbg(hw, "Auto Read Done did not complete\n"); | ||
1662 | } | ||
1663 | |||
1664 | ew32(IMC, 0xffffffff); | ||
1665 | icr = er32(ICR); | ||
1666 | |||
1667 | kab = er32(KABGTXD); | ||
1668 | kab |= E1000_KABGTXD_BGSQLBIAS; | ||
1669 | ew32(KABGTXD, kab); | ||
1670 | |||
1671 | return ret_val; | ||
1672 | } | ||
1673 | |||
1674 | /** | ||
1675 | * e1000_init_hw_ich8lan - Initialize the hardware | ||
1676 | * @hw: pointer to the HW structure | ||
1677 | * | ||
1678 | * Prepares the hardware for transmit and receive by doing the following: | ||
1679 | * - initialize hardware bits | ||
1680 | * - initialize LED identification | ||
1681 | * - setup receive address registers | ||
1682 | * - setup flow control | ||
1683 | * - setup transmit discriptors | ||
1684 | * - clear statistics | ||
1685 | **/ | ||
1686 | static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw) | ||
1687 | { | ||
1688 | struct e1000_mac_info *mac = &hw->mac; | ||
1689 | u32 ctrl_ext, txdctl, snoop; | ||
1690 | s32 ret_val; | ||
1691 | u16 i; | ||
1692 | |||
1693 | e1000_initialize_hw_bits_ich8lan(hw); | ||
1694 | |||
1695 | /* Initialize identification LED */ | ||
1696 | ret_val = e1000e_id_led_init(hw); | ||
1697 | if (ret_val) { | ||
1698 | hw_dbg(hw, "Error initializing identification LED\n"); | ||
1699 | return ret_val; | ||
1700 | } | ||
1701 | |||
1702 | /* Setup the receive address. */ | ||
1703 | e1000e_init_rx_addrs(hw, mac->rar_entry_count); | ||
1704 | |||
1705 | /* Zero out the Multicast HASH table */ | ||
1706 | hw_dbg(hw, "Zeroing the MTA\n"); | ||
1707 | for (i = 0; i < mac->mta_reg_count; i++) | ||
1708 | E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0); | ||
1709 | |||
1710 | /* Setup link and flow control */ | ||
1711 | ret_val = e1000_setup_link_ich8lan(hw); | ||
1712 | |||
1713 | /* Set the transmit descriptor write-back policy for both queues */ | ||
1714 | txdctl = er32(TXDCTL); | ||
1715 | txdctl = (txdctl & ~E1000_TXDCTL_WTHRESH) | | ||
1716 | E1000_TXDCTL_FULL_TX_DESC_WB; | ||
1717 | txdctl = (txdctl & ~E1000_TXDCTL_PTHRESH) | | ||
1718 | E1000_TXDCTL_MAX_TX_DESC_PREFETCH; | ||
1719 | ew32(TXDCTL, txdctl); | ||
1720 | txdctl = er32(TXDCTL1); | ||
1721 | txdctl = (txdctl & ~E1000_TXDCTL_WTHRESH) | | ||
1722 | E1000_TXDCTL_FULL_TX_DESC_WB; | ||
1723 | txdctl = (txdctl & ~E1000_TXDCTL_PTHRESH) | | ||
1724 | E1000_TXDCTL_MAX_TX_DESC_PREFETCH; | ||
1725 | ew32(TXDCTL1, txdctl); | ||
1726 | |||
1727 | /* ICH8 has opposite polarity of no_snoop bits. | ||
1728 | * By default, we should use snoop behavior. */ | ||
1729 | if (mac->type == e1000_ich8lan) | ||
1730 | snoop = PCIE_ICH8_SNOOP_ALL; | ||
1731 | else | ||
1732 | snoop = (u32) ~(PCIE_NO_SNOOP_ALL); | ||
1733 | e1000e_set_pcie_no_snoop(hw, snoop); | ||
1734 | |||
1735 | ctrl_ext = er32(CTRL_EXT); | ||
1736 | ctrl_ext |= E1000_CTRL_EXT_RO_DIS; | ||
1737 | ew32(CTRL_EXT, ctrl_ext); | ||
1738 | |||
1739 | /* Clear all of the statistics registers (clear on read). It is | ||
1740 | * important that we do this after we have tried to establish link | ||
1741 | * because the symbol error count will increment wildly if there | ||
1742 | * is no link. | ||
1743 | */ | ||
1744 | e1000_clear_hw_cntrs_ich8lan(hw); | ||
1745 | |||
1746 | return 0; | ||
1747 | } | ||
1748 | /** | ||
1749 | * e1000_initialize_hw_bits_ich8lan - Initialize required hardware bits | ||
1750 | * @hw: pointer to the HW structure | ||
1751 | * | ||
1752 | * Sets/Clears required hardware bits necessary for correctly setting up the | ||
1753 | * hardware for transmit and receive. | ||
1754 | **/ | ||
1755 | static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw) | ||
1756 | { | ||
1757 | u32 reg; | ||
1758 | |||
1759 | /* Extended Device Control */ | ||
1760 | reg = er32(CTRL_EXT); | ||
1761 | reg |= (1 << 22); | ||
1762 | ew32(CTRL_EXT, reg); | ||
1763 | |||
1764 | /* Transmit Descriptor Control 0 */ | ||
1765 | reg = er32(TXDCTL); | ||
1766 | reg |= (1 << 22); | ||
1767 | ew32(TXDCTL, reg); | ||
1768 | |||
1769 | /* Transmit Descriptor Control 1 */ | ||
1770 | reg = er32(TXDCTL1); | ||
1771 | reg |= (1 << 22); | ||
1772 | ew32(TXDCTL1, reg); | ||
1773 | |||
1774 | /* Transmit Arbitration Control 0 */ | ||
1775 | reg = er32(TARC0); | ||
1776 | if (hw->mac.type == e1000_ich8lan) | ||
1777 | reg |= (1 << 28) | (1 << 29); | ||
1778 | reg |= (1 << 23) | (1 << 24) | (1 << 26) | (1 << 27); | ||
1779 | ew32(TARC0, reg); | ||
1780 | |||
1781 | /* Transmit Arbitration Control 1 */ | ||
1782 | reg = er32(TARC1); | ||
1783 | if (er32(TCTL) & E1000_TCTL_MULR) | ||
1784 | reg &= ~(1 << 28); | ||
1785 | else | ||
1786 | reg |= (1 << 28); | ||
1787 | reg |= (1 << 24) | (1 << 26) | (1 << 30); | ||
1788 | ew32(TARC1, reg); | ||
1789 | |||
1790 | /* Device Status */ | ||
1791 | if (hw->mac.type == e1000_ich8lan) { | ||
1792 | reg = er32(STATUS); | ||
1793 | reg &= ~(1 << 31); | ||
1794 | ew32(STATUS, reg); | ||
1795 | } | ||
1796 | } | ||
1797 | |||
1798 | /** | ||
1799 | * e1000_setup_link_ich8lan - Setup flow control and link settings | ||
1800 | * @hw: pointer to the HW structure | ||
1801 | * | ||
1802 | * Determines which flow control settings to use, then configures flow | ||
1803 | * control. Calls the appropriate media-specific link configuration | ||
1804 | * function. Assuming the adapter has a valid link partner, a valid link | ||
1805 | * should be established. Assumes the hardware has previously been reset | ||
1806 | * and the transmitter and receiver are not enabled. | ||
1807 | **/ | ||
1808 | static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw) | ||
1809 | { | ||
1810 | struct e1000_mac_info *mac = &hw->mac; | ||
1811 | s32 ret_val; | ||
1812 | |||
1813 | if (e1000_check_reset_block(hw)) | ||
1814 | return 0; | ||
1815 | |||
1816 | /* ICH parts do not have a word in the NVM to determine | ||
1817 | * the default flow control setting, so we explicitly | ||
1818 | * set it to full. | ||
1819 | */ | ||
1820 | if (mac->fc == e1000_fc_default) | ||
1821 | mac->fc = e1000_fc_full; | ||
1822 | |||
1823 | mac->original_fc = mac->fc; | ||
1824 | |||
1825 | hw_dbg(hw, "After fix-ups FlowControl is now = %x\n", mac->fc); | ||
1826 | |||
1827 | /* Continue to configure the copper link. */ | ||
1828 | ret_val = e1000_setup_copper_link_ich8lan(hw); | ||
1829 | if (ret_val) | ||
1830 | return ret_val; | ||
1831 | |||
1832 | ew32(FCTTV, mac->fc_pause_time); | ||
1833 | |||
1834 | return e1000e_set_fc_watermarks(hw); | ||
1835 | } | ||
1836 | |||
1837 | /** | ||
1838 | * e1000_setup_copper_link_ich8lan - Configure MAC/PHY interface | ||
1839 | * @hw: pointer to the HW structure | ||
1840 | * | ||
1841 | * Configures the kumeran interface to the PHY to wait the appropriate time | ||
1842 | * when polling the PHY, then call the generic setup_copper_link to finish | ||
1843 | * configuring the copper link. | ||
1844 | **/ | ||
1845 | static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw) | ||
1846 | { | ||
1847 | u32 ctrl; | ||
1848 | s32 ret_val; | ||
1849 | u16 reg_data; | ||
1850 | |||
1851 | ctrl = er32(CTRL); | ||
1852 | ctrl |= E1000_CTRL_SLU; | ||
1853 | ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | ||
1854 | ew32(CTRL, ctrl); | ||
1855 | |||
1856 | /* Set the mac to wait the maximum time between each iteration | ||
1857 | * and increase the max iterations when polling the phy; | ||
1858 | * this fixes erroneous timeouts at 10Mbps. */ | ||
1859 | ret_val = e1000e_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF); | ||
1860 | if (ret_val) | ||
1861 | return ret_val; | ||
1862 | ret_val = e1000e_read_kmrn_reg(hw, GG82563_REG(0x34, 9), ®_data); | ||
1863 | if (ret_val) | ||
1864 | return ret_val; | ||
1865 | reg_data |= 0x3F; | ||
1866 | ret_val = e1000e_write_kmrn_reg(hw, GG82563_REG(0x34, 9), reg_data); | ||
1867 | if (ret_val) | ||
1868 | return ret_val; | ||
1869 | |||
1870 | if (hw->phy.type == e1000_phy_igp_3) { | ||
1871 | ret_val = e1000e_copper_link_setup_igp(hw); | ||
1872 | if (ret_val) | ||
1873 | return ret_val; | ||
1874 | } | ||
1875 | |||
1876 | return e1000e_setup_copper_link(hw); | ||
1877 | } | ||
1878 | |||
1879 | /** | ||
1880 | * e1000_get_link_up_info_ich8lan - Get current link speed and duplex | ||
1881 | * @hw: pointer to the HW structure | ||
1882 | * @speed: pointer to store current link speed | ||
1883 | * @duplex: pointer to store the current link duplex | ||
1884 | * | ||
1885 | * Calls the generic get_speed_and_duplex to retreive the current link | ||
1886 | * information and then calls the Kumeran lock loss workaround for links at | ||
1887 | * gigabit speeds. | ||
1888 | **/ | ||
1889 | static s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw, u16 *speed, | ||
1890 | u16 *duplex) | ||
1891 | { | ||
1892 | s32 ret_val; | ||
1893 | |||
1894 | ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex); | ||
1895 | if (ret_val) | ||
1896 | return ret_val; | ||
1897 | |||
1898 | if ((hw->mac.type == e1000_ich8lan) && | ||
1899 | (hw->phy.type == e1000_phy_igp_3) && | ||
1900 | (*speed == SPEED_1000)) { | ||
1901 | ret_val = e1000_kmrn_lock_loss_workaround_ich8lan(hw); | ||
1902 | } | ||
1903 | |||
1904 | return ret_val; | ||
1905 | } | ||
1906 | |||
1907 | /** | ||
1908 | * e1000_kmrn_lock_loss_workaround_ich8lan - Kumeran workaround | ||
1909 | * @hw: pointer to the HW structure | ||
1910 | * | ||
1911 | * Work-around for 82566 Kumeran PCS lock loss: | ||
1912 | * On link status change (i.e. PCI reset, speed change) and link is up and | ||
1913 | * speed is gigabit- | ||
1914 | * 0) if workaround is optionally disabled do nothing | ||
1915 | * 1) wait 1ms for Kumeran link to come up | ||
1916 | * 2) check Kumeran Diagnostic register PCS lock loss bit | ||
1917 | * 3) if not set the link is locked (all is good), otherwise... | ||
1918 | * 4) reset the PHY | ||
1919 | * 5) repeat up to 10 times | ||
1920 | * Note: this is only called for IGP3 copper when speed is 1gb. | ||
1921 | **/ | ||
1922 | static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw) | ||
1923 | { | ||
1924 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | ||
1925 | u32 phy_ctrl; | ||
1926 | s32 ret_val; | ||
1927 | u16 i, data; | ||
1928 | bool link; | ||
1929 | |||
1930 | if (!dev_spec->kmrn_lock_loss_workaround_enabled) | ||
1931 | return 0; | ||
1932 | |||
1933 | /* Make sure link is up before proceeding. If not just return. | ||
1934 | * Attempting this while link is negotiating fouled up link | ||
1935 | * stability */ | ||
1936 | ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link); | ||
1937 | if (!link) | ||
1938 | return 0; | ||
1939 | |||
1940 | for (i = 0; i < 10; i++) { | ||
1941 | /* read once to clear */ | ||
1942 | ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data); | ||
1943 | if (ret_val) | ||
1944 | return ret_val; | ||
1945 | /* and again to get new status */ | ||
1946 | ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data); | ||
1947 | if (ret_val) | ||
1948 | return ret_val; | ||
1949 | |||
1950 | /* check for PCS lock */ | ||
1951 | if (!(data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS)) | ||
1952 | return 0; | ||
1953 | |||
1954 | /* Issue PHY reset */ | ||
1955 | e1000_phy_hw_reset(hw); | ||
1956 | mdelay(5); | ||
1957 | } | ||
1958 | /* Disable GigE link negotiation */ | ||
1959 | phy_ctrl = er32(PHY_CTRL); | ||
1960 | phy_ctrl |= (E1000_PHY_CTRL_GBE_DISABLE | | ||
1961 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | ||
1962 | ew32(PHY_CTRL, phy_ctrl); | ||
1963 | |||
1964 | /* Call gig speed drop workaround on Giga disable before accessing | ||
1965 | * any PHY registers */ | ||
1966 | e1000e_gig_downshift_workaround_ich8lan(hw); | ||
1967 | |||
1968 | /* unable to acquire PCS lock */ | ||
1969 | return -E1000_ERR_PHY; | ||
1970 | } | ||
1971 | |||
1972 | /** | ||
1973 | * e1000_set_kmrn_lock_loss_workaound_ich8lan - Set Kumeran workaround state | ||
1974 | * @hw: pointer to the HW structure | ||
1975 | * @state: boolean value used to set the current Kumaran workaround state | ||
1976 | * | ||
1977 | * If ICH8, set the current Kumeran workaround state (enabled - TRUE | ||
1978 | * /disabled - FALSE). | ||
1979 | **/ | ||
1980 | void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw, | ||
1981 | bool state) | ||
1982 | { | ||
1983 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | ||
1984 | |||
1985 | if (hw->mac.type != e1000_ich8lan) { | ||
1986 | hw_dbg(hw, "Workaround applies to ICH8 only.\n"); | ||
1987 | return; | ||
1988 | } | ||
1989 | |||
1990 | dev_spec->kmrn_lock_loss_workaround_enabled = state; | ||
1991 | } | ||
1992 | |||
1993 | /** | ||
1994 | * e1000_ipg3_phy_powerdown_workaround_ich8lan - Power down workaround on D3 | ||
1995 | * @hw: pointer to the HW structure | ||
1996 | * | ||
1997 | * Workaround for 82566 power-down on D3 entry: | ||
1998 | * 1) disable gigabit link | ||
1999 | * 2) write VR power-down enable | ||
2000 | * 3) read it back | ||
2001 | * Continue if successful, else issue LCD reset and repeat | ||
2002 | **/ | ||
2003 | void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw) | ||
2004 | { | ||
2005 | u32 reg; | ||
2006 | u16 data; | ||
2007 | u8 retry = 0; | ||
2008 | |||
2009 | if (hw->phy.type != e1000_phy_igp_3) | ||
2010 | return; | ||
2011 | |||
2012 | /* Try the workaround twice (if needed) */ | ||
2013 | do { | ||
2014 | /* Disable link */ | ||
2015 | reg = er32(PHY_CTRL); | ||
2016 | reg |= (E1000_PHY_CTRL_GBE_DISABLE | | ||
2017 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | ||
2018 | ew32(PHY_CTRL, reg); | ||
2019 | |||
2020 | /* Call gig speed drop workaround on Giga disable before | ||
2021 | * accessing any PHY registers */ | ||
2022 | if (hw->mac.type == e1000_ich8lan) | ||
2023 | e1000e_gig_downshift_workaround_ich8lan(hw); | ||
2024 | |||
2025 | /* Write VR power-down enable */ | ||
2026 | e1e_rphy(hw, IGP3_VR_CTRL, &data); | ||
2027 | data &= ~IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK; | ||
2028 | e1e_wphy(hw, IGP3_VR_CTRL, data | IGP3_VR_CTRL_MODE_SHUTDOWN); | ||
2029 | |||
2030 | /* Read it back and test */ | ||
2031 | e1e_rphy(hw, IGP3_VR_CTRL, &data); | ||
2032 | data &= IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK; | ||
2033 | if ((data == IGP3_VR_CTRL_MODE_SHUTDOWN) || retry) | ||
2034 | break; | ||
2035 | |||
2036 | /* Issue PHY reset and repeat at most one more time */ | ||
2037 | reg = er32(CTRL); | ||
2038 | ew32(CTRL, reg | E1000_CTRL_PHY_RST); | ||
2039 | retry++; | ||
2040 | } while (retry); | ||
2041 | } | ||
2042 | |||
2043 | /** | ||
2044 | * e1000e_gig_downshift_workaround_ich8lan - WoL from S5 stops working | ||
2045 | * @hw: pointer to the HW structure | ||
2046 | * | ||
2047 | * Steps to take when dropping from 1Gb/s (eg. link cable removal (LSC), | ||
2048 | * LPLU, Giga disable, MDIC PHY reset): | ||
2049 | * 1) Set Kumeran Near-end loopback | ||
2050 | * 2) Clear Kumeran Near-end loopback | ||
2051 | * Should only be called for ICH8[m] devices with IGP_3 Phy. | ||
2052 | **/ | ||
2053 | void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw) | ||
2054 | { | ||
2055 | s32 ret_val; | ||
2056 | u16 reg_data; | ||
2057 | |||
2058 | if ((hw->mac.type != e1000_ich8lan) || | ||
2059 | (hw->phy.type != e1000_phy_igp_3)) | ||
2060 | return; | ||
2061 | |||
2062 | ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET, | ||
2063 | ®_data); | ||
2064 | if (ret_val) | ||
2065 | return; | ||
2066 | reg_data |= E1000_KMRNCTRLSTA_DIAG_NELPBK; | ||
2067 | ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET, | ||
2068 | reg_data); | ||
2069 | if (ret_val) | ||
2070 | return; | ||
2071 | reg_data &= ~E1000_KMRNCTRLSTA_DIAG_NELPBK; | ||
2072 | ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET, | ||
2073 | reg_data); | ||
2074 | } | ||
2075 | |||
2076 | /** | ||
2077 | * e1000_cleanup_led_ich8lan - Restore the default LED operation | ||
2078 | * @hw: pointer to the HW structure | ||
2079 | * | ||
2080 | * Return the LED back to the default configuration. | ||
2081 | **/ | ||
2082 | static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw) | ||
2083 | { | ||
2084 | if (hw->phy.type == e1000_phy_ife) | ||
2085 | return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0); | ||
2086 | |||
2087 | ew32(LEDCTL, hw->mac.ledctl_default); | ||
2088 | return 0; | ||
2089 | } | ||
2090 | |||
2091 | /** | ||
2092 | * e1000_led_on_ich8lan - Turn LED's on | ||
2093 | * @hw: pointer to the HW structure | ||
2094 | * | ||
2095 | * Turn on the LED's. | ||
2096 | **/ | ||
2097 | static s32 e1000_led_on_ich8lan(struct e1000_hw *hw) | ||
2098 | { | ||
2099 | if (hw->phy.type == e1000_phy_ife) | ||
2100 | return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, | ||
2101 | (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON)); | ||
2102 | |||
2103 | ew32(LEDCTL, hw->mac.ledctl_mode2); | ||
2104 | return 0; | ||
2105 | } | ||
2106 | |||
2107 | /** | ||
2108 | * e1000_led_off_ich8lan - Turn LED's off | ||
2109 | * @hw: pointer to the HW structure | ||
2110 | * | ||
2111 | * Turn off the LED's. | ||
2112 | **/ | ||
2113 | static s32 e1000_led_off_ich8lan(struct e1000_hw *hw) | ||
2114 | { | ||
2115 | if (hw->phy.type == e1000_phy_ife) | ||
2116 | return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, | ||
2117 | (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_OFF)); | ||
2118 | |||
2119 | ew32(LEDCTL, hw->mac.ledctl_mode1); | ||
2120 | return 0; | ||
2121 | } | ||
2122 | |||
2123 | /** | ||
2124 | * e1000_clear_hw_cntrs_ich8lan - Clear statistical counters | ||
2125 | * @hw: pointer to the HW structure | ||
2126 | * | ||
2127 | * Clears hardware counters specific to the silicon family and calls | ||
2128 | * clear_hw_cntrs_generic to clear all general purpose counters. | ||
2129 | **/ | ||
2130 | static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw) | ||
2131 | { | ||
2132 | u32 temp; | ||
2133 | |||
2134 | e1000e_clear_hw_cntrs_base(hw); | ||
2135 | |||
2136 | temp = er32(ALGNERRC); | ||
2137 | temp = er32(RXERRC); | ||
2138 | temp = er32(TNCRS); | ||
2139 | temp = er32(CEXTERR); | ||
2140 | temp = er32(TSCTC); | ||
2141 | temp = er32(TSCTFC); | ||
2142 | |||
2143 | temp = er32(MGTPRC); | ||
2144 | temp = er32(MGTPDC); | ||
2145 | temp = er32(MGTPTC); | ||
2146 | |||
2147 | temp = er32(IAC); | ||
2148 | temp = er32(ICRXOC); | ||
2149 | |||
2150 | } | ||
2151 | |||
2152 | static struct e1000_mac_operations ich8_mac_ops = { | ||
2153 | .mng_mode_enab = E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT, | ||
2154 | .check_for_link = e1000e_check_for_copper_link, | ||
2155 | .cleanup_led = e1000_cleanup_led_ich8lan, | ||
2156 | .clear_hw_cntrs = e1000_clear_hw_cntrs_ich8lan, | ||
2157 | .get_bus_info = e1000_get_bus_info_ich8lan, | ||
2158 | .get_link_up_info = e1000_get_link_up_info_ich8lan, | ||
2159 | .led_on = e1000_led_on_ich8lan, | ||
2160 | .led_off = e1000_led_off_ich8lan, | ||
2161 | .mc_addr_list_update = e1000e_mc_addr_list_update_generic, | ||
2162 | .reset_hw = e1000_reset_hw_ich8lan, | ||
2163 | .init_hw = e1000_init_hw_ich8lan, | ||
2164 | .setup_link = e1000_setup_link_ich8lan, | ||
2165 | .setup_physical_interface= e1000_setup_copper_link_ich8lan, | ||
2166 | }; | ||
2167 | |||
2168 | static struct e1000_phy_operations ich8_phy_ops = { | ||
2169 | .acquire_phy = e1000_acquire_swflag_ich8lan, | ||
2170 | .check_reset_block = e1000_check_reset_block_ich8lan, | ||
2171 | .commit_phy = NULL, | ||
2172 | .force_speed_duplex = e1000_phy_force_speed_duplex_ich8lan, | ||
2173 | .get_cfg_done = e1000e_get_cfg_done, | ||
2174 | .get_cable_length = e1000e_get_cable_length_igp_2, | ||
2175 | .get_phy_info = e1000_get_phy_info_ich8lan, | ||
2176 | .read_phy_reg = e1000e_read_phy_reg_igp, | ||
2177 | .release_phy = e1000_release_swflag_ich8lan, | ||
2178 | .reset_phy = e1000_phy_hw_reset_ich8lan, | ||
2179 | .set_d0_lplu_state = e1000_set_d0_lplu_state_ich8lan, | ||
2180 | .set_d3_lplu_state = e1000_set_d3_lplu_state_ich8lan, | ||
2181 | .write_phy_reg = e1000e_write_phy_reg_igp, | ||
2182 | }; | ||
2183 | |||
2184 | static struct e1000_nvm_operations ich8_nvm_ops = { | ||
2185 | .acquire_nvm = e1000_acquire_swflag_ich8lan, | ||
2186 | .read_nvm = e1000_read_nvm_ich8lan, | ||
2187 | .release_nvm = e1000_release_swflag_ich8lan, | ||
2188 | .update_nvm = e1000_update_nvm_checksum_ich8lan, | ||
2189 | .valid_led_default = e1000_valid_led_default_ich8lan, | ||
2190 | .validate_nvm = e1000_validate_nvm_checksum_ich8lan, | ||
2191 | .write_nvm = e1000_write_nvm_ich8lan, | ||
2192 | }; | ||
2193 | |||
2194 | struct e1000_info e1000_ich8_info = { | ||
2195 | .mac = e1000_ich8lan, | ||
2196 | .flags = FLAG_HAS_WOL | ||
2197 | | FLAG_RX_CSUM_ENABLED | ||
2198 | | FLAG_HAS_CTRLEXT_ON_LOAD | ||
2199 | | FLAG_HAS_AMT | ||
2200 | | FLAG_HAS_FLASH | ||
2201 | | FLAG_APME_IN_WUC, | ||
2202 | .pba = 8, | ||
2203 | .get_invariants = e1000_get_invariants_ich8lan, | ||
2204 | .mac_ops = &ich8_mac_ops, | ||
2205 | .phy_ops = &ich8_phy_ops, | ||
2206 | .nvm_ops = &ich8_nvm_ops, | ||
2207 | }; | ||
2208 | |||
2209 | struct e1000_info e1000_ich9_info = { | ||
2210 | .mac = e1000_ich9lan, | ||
2211 | .flags = FLAG_HAS_JUMBO_FRAMES | ||
2212 | | FLAG_HAS_WOL | ||
2213 | | FLAG_RX_CSUM_ENABLED | ||
2214 | | FLAG_HAS_CTRLEXT_ON_LOAD | ||
2215 | | FLAG_HAS_AMT | ||
2216 | | FLAG_HAS_ERT | ||
2217 | | FLAG_HAS_FLASH | ||
2218 | | FLAG_APME_IN_WUC, | ||
2219 | .pba = 10, | ||
2220 | .get_invariants = e1000_get_invariants_ich8lan, | ||
2221 | .mac_ops = &ich8_mac_ops, | ||
2222 | .phy_ops = &ich8_phy_ops, | ||
2223 | .nvm_ops = &ich8_nvm_ops, | ||
2224 | }; | ||
2225 | |||