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ae06c70b | 1 | // SPDX-License-Identifier: GPL-2.0 |
51dce24b | 2 | /* Copyright(c) 1999 - 2018 Intel Corporation. */ |
bc7f75fa | 3 | |
e921eb1a | 4 | /* 82562G 10/100 Network Connection |
bc7f75fa AK |
5 | * 82562G-2 10/100 Network Connection |
6 | * 82562GT 10/100 Network Connection | |
7 | * 82562GT-2 10/100 Network Connection | |
8 | * 82562V 10/100 Network Connection | |
9 | * 82562V-2 10/100 Network Connection | |
10 | * 82566DC-2 Gigabit Network Connection | |
11 | * 82566DC Gigabit Network Connection | |
12 | * 82566DM-2 Gigabit Network Connection | |
13 | * 82566DM Gigabit Network Connection | |
14 | * 82566MC Gigabit Network Connection | |
15 | * 82566MM Gigabit Network Connection | |
97ac8cae BA |
16 | * 82567LM Gigabit Network Connection |
17 | * 82567LF Gigabit Network Connection | |
1605927f | 18 | * 82567V Gigabit Network Connection |
97ac8cae BA |
19 | * 82567LM-2 Gigabit Network Connection |
20 | * 82567LF-2 Gigabit Network Connection | |
21 | * 82567V-2 Gigabit Network Connection | |
f4187b56 BA |
22 | * 82567LF-3 Gigabit Network Connection |
23 | * 82567LM-3 Gigabit Network Connection | |
2f15f9d6 | 24 | * 82567LM-4 Gigabit Network Connection |
a4f58f54 BA |
25 | * 82577LM Gigabit Network Connection |
26 | * 82577LC Gigabit Network Connection | |
27 | * 82578DM Gigabit Network Connection | |
28 | * 82578DC Gigabit Network Connection | |
d3738bb8 BA |
29 | * 82579LM Gigabit Network Connection |
30 | * 82579V Gigabit Network Connection | |
3b70d4f8 DE |
31 | * Ethernet Connection I217-LM |
32 | * Ethernet Connection I217-V | |
33 | * Ethernet Connection I218-V | |
34 | * Ethernet Connection I218-LM | |
35 | * Ethernet Connection (2) I218-LM | |
36 | * Ethernet Connection (2) I218-V | |
37 | * Ethernet Connection (3) I218-LM | |
38 | * Ethernet Connection (3) I218-V | |
bc7f75fa AK |
39 | */ |
40 | ||
bc7f75fa AK |
41 | #include "e1000.h" |
42 | ||
bc7f75fa AK |
43 | /* ICH GbE Flash Hardware Sequencing Flash Status Register bit breakdown */ |
44 | /* Offset 04h HSFSTS */ | |
45 | union ich8_hws_flash_status { | |
46 | struct ich8_hsfsts { | |
362e20ca BA |
47 | u16 flcdone:1; /* bit 0 Flash Cycle Done */ |
48 | u16 flcerr:1; /* bit 1 Flash Cycle Error */ | |
49 | u16 dael:1; /* bit 2 Direct Access error Log */ | |
50 | u16 berasesz:2; /* bit 4:3 Sector Erase Size */ | |
51 | u16 flcinprog:1; /* bit 5 flash cycle in Progress */ | |
52 | u16 reserved1:2; /* bit 13:6 Reserved */ | |
53 | u16 reserved2:6; /* bit 13:6 Reserved */ | |
54 | u16 fldesvalid:1; /* bit 14 Flash Descriptor Valid */ | |
55 | u16 flockdn:1; /* bit 15 Flash Config Lock-Down */ | |
bc7f75fa AK |
56 | } hsf_status; |
57 | u16 regval; | |
58 | }; | |
59 | ||
60 | /* ICH GbE Flash Hardware Sequencing Flash control Register bit breakdown */ | |
61 | /* Offset 06h FLCTL */ | |
62 | union ich8_hws_flash_ctrl { | |
63 | struct ich8_hsflctl { | |
362e20ca BA |
64 | u16 flcgo:1; /* 0 Flash Cycle Go */ |
65 | u16 flcycle:2; /* 2:1 Flash Cycle */ | |
66 | u16 reserved:5; /* 7:3 Reserved */ | |
67 | u16 fldbcount:2; /* 9:8 Flash Data Byte Count */ | |
68 | u16 flockdn:6; /* 15:10 Reserved */ | |
bc7f75fa AK |
69 | } hsf_ctrl; |
70 | u16 regval; | |
71 | }; | |
72 | ||
73 | /* ICH Flash Region Access Permissions */ | |
74 | union ich8_hws_flash_regacc { | |
75 | struct ich8_flracc { | |
362e20ca BA |
76 | u32 grra:8; /* 0:7 GbE region Read Access */ |
77 | u32 grwa:8; /* 8:15 GbE region Write Access */ | |
78 | u32 gmrag:8; /* 23:16 GbE Master Read Access Grant */ | |
79 | u32 gmwag:8; /* 31:24 GbE Master Write Access Grant */ | |
bc7f75fa AK |
80 | } hsf_flregacc; |
81 | u16 regval; | |
82 | }; | |
83 | ||
4a770358 BA |
84 | /* ICH Flash Protected Region */ |
85 | union ich8_flash_protected_range { | |
86 | struct ich8_pr { | |
e80bd1d1 BA |
87 | u32 base:13; /* 0:12 Protected Range Base */ |
88 | u32 reserved1:2; /* 13:14 Reserved */ | |
89 | u32 rpe:1; /* 15 Read Protection Enable */ | |
90 | u32 limit:13; /* 16:28 Protected Range Limit */ | |
91 | u32 reserved2:2; /* 29:30 Reserved */ | |
92 | u32 wpe:1; /* 31 Write Protection Enable */ | |
4a770358 BA |
93 | } range; |
94 | u32 regval; | |
95 | }; | |
96 | ||
bc7f75fa AK |
97 | static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw); |
98 | static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw); | |
bc7f75fa AK |
99 | static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank); |
100 | static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw, | |
101 | u32 offset, u8 byte); | |
f4187b56 BA |
102 | static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset, |
103 | u8 *data); | |
bc7f75fa AK |
104 | static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset, |
105 | u16 *data); | |
106 | static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset, | |
107 | u8 size, u16 *data); | |
79849ebc DE |
108 | static s32 e1000_read_flash_data32_ich8lan(struct e1000_hw *hw, u32 offset, |
109 | u32 *data); | |
110 | static s32 e1000_read_flash_dword_ich8lan(struct e1000_hw *hw, | |
111 | u32 offset, u32 *data); | |
112 | static s32 e1000_write_flash_data32_ich8lan(struct e1000_hw *hw, | |
113 | u32 offset, u32 data); | |
114 | static s32 e1000_retry_write_flash_dword_ich8lan(struct e1000_hw *hw, | |
115 | u32 offset, u32 dword); | |
bc7f75fa | 116 | static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw); |
a4f58f54 BA |
117 | static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw); |
118 | static s32 e1000_led_on_ich8lan(struct e1000_hw *hw); | |
119 | static s32 e1000_led_off_ich8lan(struct e1000_hw *hw); | |
120 | static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw); | |
121 | static s32 e1000_setup_led_pchlan(struct e1000_hw *hw); | |
122 | static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw); | |
123 | static s32 e1000_led_on_pchlan(struct e1000_hw *hw); | |
124 | static s32 e1000_led_off_pchlan(struct e1000_hw *hw); | |
fa2ce13c | 125 | static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active); |
17f208de | 126 | static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw); |
f523d211 | 127 | static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw); |
1f96012d | 128 | static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link); |
fddaa1af | 129 | static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw); |
eb7700dc BA |
130 | static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw); |
131 | static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw); | |
b3e5bf1f DE |
132 | static int e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index); |
133 | static int e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index); | |
134 | static u32 e1000_rar_get_count_pch_lpt(struct e1000_hw *hw); | |
831bd2e6 | 135 | static s32 e1000_k1_workaround_lv(struct e1000_hw *hw); |
605c82ba | 136 | static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate); |
74f350ee | 137 | static s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force); |
ea8179a7 | 138 | static s32 e1000_setup_copper_link_pch_lpt(struct e1000_hw *hw); |
74f350ee | 139 | static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state); |
bc7f75fa AK |
140 | |
141 | static inline u16 __er16flash(struct e1000_hw *hw, unsigned long reg) | |
142 | { | |
143 | return readw(hw->flash_address + reg); | |
144 | } | |
145 | ||
146 | static inline u32 __er32flash(struct e1000_hw *hw, unsigned long reg) | |
147 | { | |
148 | return readl(hw->flash_address + reg); | |
149 | } | |
150 | ||
151 | static inline void __ew16flash(struct e1000_hw *hw, unsigned long reg, u16 val) | |
152 | { | |
153 | writew(val, hw->flash_address + reg); | |
154 | } | |
155 | ||
156 | static inline void __ew32flash(struct e1000_hw *hw, unsigned long reg, u32 val) | |
157 | { | |
158 | writel(val, hw->flash_address + reg); | |
159 | } | |
160 | ||
161 | #define er16flash(reg) __er16flash(hw, (reg)) | |
162 | #define er32flash(reg) __er32flash(hw, (reg)) | |
0e15df49 BA |
163 | #define ew16flash(reg, val) __ew16flash(hw, (reg), (val)) |
164 | #define ew32flash(reg, val) __ew32flash(hw, (reg), (val)) | |
bc7f75fa | 165 | |
cb17aab9 BA |
166 | /** |
167 | * e1000_phy_is_accessible_pchlan - Check if able to access PHY registers | |
168 | * @hw: pointer to the HW structure | |
169 | * | |
170 | * Test access to the PHY registers by reading the PHY ID registers. If | |
171 | * the PHY ID is already known (e.g. resume path) compare it with known ID, | |
172 | * otherwise assume the read PHY ID is correct if it is valid. | |
173 | * | |
174 | * Assumes the sw/fw/hw semaphore is already acquired. | |
175 | **/ | |
176 | static bool e1000_phy_is_accessible_pchlan(struct e1000_hw *hw) | |
99730e4c | 177 | { |
a52359b5 BA |
178 | u16 phy_reg = 0; |
179 | u32 phy_id = 0; | |
2c982624 | 180 | s32 ret_val = 0; |
a52359b5 | 181 | u16 retry_count; |
16b095a4 | 182 | u32 mac_reg = 0; |
a52359b5 BA |
183 | |
184 | for (retry_count = 0; retry_count < 2; retry_count++) { | |
c2ade1a4 | 185 | ret_val = e1e_rphy_locked(hw, MII_PHYSID1, &phy_reg); |
a52359b5 BA |
186 | if (ret_val || (phy_reg == 0xFFFF)) |
187 | continue; | |
188 | phy_id = (u32)(phy_reg << 16); | |
189 | ||
c2ade1a4 | 190 | ret_val = e1e_rphy_locked(hw, MII_PHYSID2, &phy_reg); |
a52359b5 BA |
191 | if (ret_val || (phy_reg == 0xFFFF)) { |
192 | phy_id = 0; | |
193 | continue; | |
194 | } | |
195 | phy_id |= (u32)(phy_reg & PHY_REVISION_MASK); | |
196 | break; | |
197 | } | |
cb17aab9 BA |
198 | |
199 | if (hw->phy.id) { | |
200 | if (hw->phy.id == phy_id) | |
16b095a4 | 201 | goto out; |
a52359b5 BA |
202 | } else if (phy_id) { |
203 | hw->phy.id = phy_id; | |
204 | hw->phy.revision = (u32)(phy_reg & ~PHY_REVISION_MASK); | |
16b095a4 | 205 | goto out; |
cb17aab9 BA |
206 | } |
207 | ||
e921eb1a | 208 | /* In case the PHY needs to be in mdio slow mode, |
a52359b5 BA |
209 | * set slow mode and try to get the PHY id again. |
210 | */ | |
2c982624 DE |
211 | if (hw->mac.type < e1000_pch_lpt) { |
212 | hw->phy.ops.release(hw); | |
213 | ret_val = e1000_set_mdio_slow_mode_hv(hw); | |
214 | if (!ret_val) | |
215 | ret_val = e1000e_get_phy_id(hw); | |
216 | hw->phy.ops.acquire(hw); | |
217 | } | |
a52359b5 | 218 | |
16b095a4 BA |
219 | if (ret_val) |
220 | return false; | |
221 | out: | |
c8744f44 | 222 | if (hw->mac.type >= e1000_pch_lpt) { |
beee8072 YL |
223 | /* Only unforce SMBus if ME is not active */ |
224 | if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) { | |
225 | /* Unforce SMBus mode in PHY */ | |
226 | e1e_rphy_locked(hw, CV_SMB_CTRL, &phy_reg); | |
227 | phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS; | |
228 | e1e_wphy_locked(hw, CV_SMB_CTRL, phy_reg); | |
16b095a4 | 229 | |
beee8072 YL |
230 | /* Unforce SMBus mode in MAC */ |
231 | mac_reg = er32(CTRL_EXT); | |
232 | mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS; | |
233 | ew32(CTRL_EXT, mac_reg); | |
234 | } | |
16b095a4 BA |
235 | } |
236 | ||
237 | return true; | |
cb17aab9 BA |
238 | } |
239 | ||
74f350ee DE |
240 | /** |
241 | * e1000_toggle_lanphypc_pch_lpt - toggle the LANPHYPC pin value | |
242 | * @hw: pointer to the HW structure | |
243 | * | |
244 | * Toggling the LANPHYPC pin value fully power-cycles the PHY and is | |
245 | * used to reset the PHY to a quiescent state when necessary. | |
246 | **/ | |
247 | static void e1000_toggle_lanphypc_pch_lpt(struct e1000_hw *hw) | |
248 | { | |
249 | u32 mac_reg; | |
250 | ||
251 | /* Set Phy Config Counter to 50msec */ | |
252 | mac_reg = er32(FEXTNVM3); | |
253 | mac_reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK; | |
254 | mac_reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC; | |
255 | ew32(FEXTNVM3, mac_reg); | |
256 | ||
257 | /* Toggle LANPHYPC Value bit */ | |
258 | mac_reg = er32(CTRL); | |
259 | mac_reg |= E1000_CTRL_LANPHYPC_OVERRIDE; | |
260 | mac_reg &= ~E1000_CTRL_LANPHYPC_VALUE; | |
261 | ew32(CTRL, mac_reg); | |
262 | e1e_flush(); | |
263 | usleep_range(10, 20); | |
264 | mac_reg &= ~E1000_CTRL_LANPHYPC_OVERRIDE; | |
265 | ew32(CTRL, mac_reg); | |
266 | e1e_flush(); | |
267 | ||
268 | if (hw->mac.type < e1000_pch_lpt) { | |
269 | msleep(50); | |
270 | } else { | |
271 | u16 count = 20; | |
272 | ||
273 | do { | |
ab6973ae | 274 | usleep_range(5000, 6000); |
74f350ee DE |
275 | } while (!(er32(CTRL_EXT) & E1000_CTRL_EXT_LPCD) && count--); |
276 | ||
277 | msleep(30); | |
278 | } | |
279 | } | |
280 | ||
cb17aab9 BA |
281 | /** |
282 | * e1000_init_phy_workarounds_pchlan - PHY initialization workarounds | |
283 | * @hw: pointer to the HW structure | |
284 | * | |
285 | * Workarounds/flow necessary for PHY initialization during driver load | |
286 | * and resume paths. | |
287 | **/ | |
288 | static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw) | |
289 | { | |
f7235ef6 | 290 | struct e1000_adapter *adapter = hw->adapter; |
cb17aab9 BA |
291 | u32 mac_reg, fwsm = er32(FWSM); |
292 | s32 ret_val; | |
293 | ||
6e928b72 BA |
294 | /* Gate automatic PHY configuration by hardware on managed and |
295 | * non-managed 82579 and newer adapters. | |
296 | */ | |
297 | e1000_gate_hw_phy_config_ich8lan(hw, true); | |
298 | ||
74f350ee DE |
299 | /* It is not possible to be certain of the current state of ULP |
300 | * so forcibly disable it. | |
301 | */ | |
302 | hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_unknown; | |
0c80cdbf | 303 | ret_val = e1000_disable_ulp_lpt_lp(hw, true); |
1050242f | 304 | if (ret_val) |
0c80cdbf | 305 | e_warn("Failed to disable ULP\n"); |
74f350ee | 306 | |
cb17aab9 BA |
307 | ret_val = hw->phy.ops.acquire(hw); |
308 | if (ret_val) { | |
309 | e_dbg("Failed to initialize PHY flow\n"); | |
6e928b72 | 310 | goto out; |
cb17aab9 BA |
311 | } |
312 | ||
e921eb1a | 313 | /* The MAC-PHY interconnect may be in SMBus mode. If the PHY is |
cb17aab9 BA |
314 | * inaccessible and resetting the PHY is not blocked, toggle the |
315 | * LANPHYPC Value bit to force the interconnect to PCIe mode. | |
316 | */ | |
317 | switch (hw->mac.type) { | |
2fbe4526 | 318 | case e1000_pch_lpt: |
79849ebc | 319 | case e1000_pch_spt: |
c8744f44 | 320 | case e1000_pch_cnp: |
fb776f5d | 321 | case e1000_pch_tgp: |
59e46688 | 322 | case e1000_pch_adp: |
cc23f4f0 | 323 | case e1000_pch_mtp: |
2fbe4526 BA |
324 | if (e1000_phy_is_accessible_pchlan(hw)) |
325 | break; | |
326 | ||
e921eb1a | 327 | /* Before toggling LANPHYPC, see if PHY is accessible by |
2fbe4526 BA |
328 | * forcing MAC to SMBus mode first. |
329 | */ | |
330 | mac_reg = er32(CTRL_EXT); | |
331 | mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS; | |
332 | ew32(CTRL_EXT, mac_reg); | |
333 | ||
16b095a4 BA |
334 | /* Wait 50 milliseconds for MAC to finish any retries |
335 | * that it might be trying to perform from previous | |
336 | * attempts to acknowledge any phy read requests. | |
337 | */ | |
338 | msleep(50); | |
339 | ||
5463fce6 | 340 | fallthrough; |
cb17aab9 | 341 | case e1000_pch2lan: |
16b095a4 | 342 | if (e1000_phy_is_accessible_pchlan(hw)) |
cb17aab9 BA |
343 | break; |
344 | ||
5463fce6 | 345 | fallthrough; |
cb17aab9 BA |
346 | case e1000_pchlan: |
347 | if ((hw->mac.type == e1000_pchlan) && | |
348 | (fwsm & E1000_ICH_FWSM_FW_VALID)) | |
349 | break; | |
350 | ||
351 | if (hw->phy.ops.check_reset_block(hw)) { | |
352 | e_dbg("Required LANPHYPC toggle blocked by ME\n"); | |
16b095a4 | 353 | ret_val = -E1000_ERR_PHY; |
cb17aab9 BA |
354 | break; |
355 | } | |
356 | ||
cb17aab9 | 357 | /* Toggle LANPHYPC Value bit */ |
74f350ee DE |
358 | e1000_toggle_lanphypc_pch_lpt(hw); |
359 | if (hw->mac.type >= e1000_pch_lpt) { | |
16b095a4 BA |
360 | if (e1000_phy_is_accessible_pchlan(hw)) |
361 | break; | |
362 | ||
363 | /* Toggling LANPHYPC brings the PHY out of SMBus mode | |
364 | * so ensure that the MAC is also out of SMBus mode | |
365 | */ | |
366 | mac_reg = er32(CTRL_EXT); | |
367 | mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS; | |
368 | ew32(CTRL_EXT, mac_reg); | |
369 | ||
370 | if (e1000_phy_is_accessible_pchlan(hw)) | |
371 | break; | |
372 | ||
373 | ret_val = -E1000_ERR_PHY; | |
2fbe4526 | 374 | } |
cb17aab9 BA |
375 | break; |
376 | default: | |
377 | break; | |
378 | } | |
379 | ||
380 | hw->phy.ops.release(hw); | |
16b095a4 | 381 | if (!ret_val) { |
f7235ef6 DE |
382 | |
383 | /* Check to see if able to reset PHY. Print error if not */ | |
384 | if (hw->phy.ops.check_reset_block(hw)) { | |
385 | e_err("Reset blocked by ME\n"); | |
386 | goto out; | |
387 | } | |
388 | ||
16b095a4 BA |
389 | /* Reset the PHY before any access to it. Doing so, ensures |
390 | * that the PHY is in a known good state before we read/write | |
391 | * PHY registers. The generic reset is sufficient here, | |
392 | * because we haven't determined the PHY type yet. | |
393 | */ | |
394 | ret_val = e1000e_phy_hw_reset_generic(hw); | |
f7235ef6 DE |
395 | if (ret_val) |
396 | goto out; | |
397 | ||
398 | /* On a successful reset, possibly need to wait for the PHY | |
399 | * to quiesce to an accessible state before returning control | |
400 | * to the calling function. If the PHY does not quiesce, then | |
401 | * return E1000E_BLK_PHY_RESET, as this is the condition that | |
402 | * the PHY is in. | |
403 | */ | |
404 | ret_val = hw->phy.ops.check_reset_block(hw); | |
405 | if (ret_val) | |
406 | e_err("ME blocked access to PHY after reset\n"); | |
16b095a4 | 407 | } |
cb17aab9 | 408 | |
6e928b72 | 409 | out: |
cb17aab9 BA |
410 | /* Ungate automatic PHY configuration on non-managed 82579 */ |
411 | if ((hw->mac.type == e1000_pch2lan) && | |
412 | !(fwsm & E1000_ICH_FWSM_FW_VALID)) { | |
ab6973ae | 413 | usleep_range(10000, 11000); |
cb17aab9 BA |
414 | e1000_gate_hw_phy_config_ich8lan(hw, false); |
415 | } | |
416 | ||
417 | return ret_val; | |
99730e4c BA |
418 | } |
419 | ||
a4f58f54 BA |
420 | /** |
421 | * e1000_init_phy_params_pchlan - Initialize PHY function pointers | |
422 | * @hw: pointer to the HW structure | |
423 | * | |
424 | * Initialize family-specific PHY parameters and function pointers. | |
425 | **/ | |
426 | static s32 e1000_init_phy_params_pchlan(struct e1000_hw *hw) | |
427 | { | |
428 | struct e1000_phy_info *phy = &hw->phy; | |
70806a7f | 429 | s32 ret_val; |
a4f58f54 | 430 | |
e80bd1d1 BA |
431 | phy->addr = 1; |
432 | phy->reset_delay_us = 100; | |
433 | ||
434 | phy->ops.set_page = e1000_set_page_igp; | |
435 | phy->ops.read_reg = e1000_read_phy_reg_hv; | |
436 | phy->ops.read_reg_locked = e1000_read_phy_reg_hv_locked; | |
437 | phy->ops.read_reg_page = e1000_read_phy_reg_page_hv; | |
438 | phy->ops.set_d0_lplu_state = e1000_set_lplu_state_pchlan; | |
439 | phy->ops.set_d3_lplu_state = e1000_set_lplu_state_pchlan; | |
440 | phy->ops.write_reg = e1000_write_phy_reg_hv; | |
441 | phy->ops.write_reg_locked = e1000_write_phy_reg_hv_locked; | |
442 | phy->ops.write_reg_page = e1000_write_phy_reg_page_hv; | |
443 | phy->ops.power_up = e1000_power_up_phy_copper; | |
444 | phy->ops.power_down = e1000_power_down_phy_copper_ich8lan; | |
445 | phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; | |
a4f58f54 | 446 | |
cb17aab9 | 447 | phy->id = e1000_phy_unknown; |
627c8a04 | 448 | |
cb17aab9 BA |
449 | ret_val = e1000_init_phy_workarounds_pchlan(hw); |
450 | if (ret_val) | |
451 | return ret_val; | |
605c82ba | 452 | |
cb17aab9 BA |
453 | if (phy->id == e1000_phy_unknown) |
454 | switch (hw->mac.type) { | |
455 | default: | |
456 | ret_val = e1000e_get_phy_id(hw); | |
457 | if (ret_val) | |
458 | return ret_val; | |
459 | if ((phy->id != 0) && (phy->id != PHY_REVISION_MASK)) | |
460 | break; | |
5463fce6 | 461 | fallthrough; |
cb17aab9 | 462 | case e1000_pch2lan: |
2fbe4526 | 463 | case e1000_pch_lpt: |
79849ebc | 464 | case e1000_pch_spt: |
c8744f44 | 465 | case e1000_pch_cnp: |
fb776f5d | 466 | case e1000_pch_tgp: |
59e46688 | 467 | case e1000_pch_adp: |
cc23f4f0 | 468 | case e1000_pch_mtp: |
e921eb1a | 469 | /* In case the PHY needs to be in mdio slow mode, |
cb17aab9 BA |
470 | * set slow mode and try to get the PHY id again. |
471 | */ | |
472 | ret_val = e1000_set_mdio_slow_mode_hv(hw); | |
473 | if (ret_val) | |
474 | return ret_val; | |
475 | ret_val = e1000e_get_phy_id(hw); | |
476 | if (ret_val) | |
477 | return ret_val; | |
664dc878 | 478 | break; |
cb17aab9 | 479 | } |
a4f58f54 BA |
480 | phy->type = e1000e_get_phy_type_from_id(phy->id); |
481 | ||
0be84010 BA |
482 | switch (phy->type) { |
483 | case e1000_phy_82577: | |
d3738bb8 | 484 | case e1000_phy_82579: |
2fbe4526 | 485 | case e1000_phy_i217: |
a4f58f54 BA |
486 | phy->ops.check_polarity = e1000_check_polarity_82577; |
487 | phy->ops.force_speed_duplex = | |
6cc7aaed | 488 | e1000_phy_force_speed_duplex_82577; |
0be84010 | 489 | phy->ops.get_cable_length = e1000_get_cable_length_82577; |
94d8186a BA |
490 | phy->ops.get_info = e1000_get_phy_info_82577; |
491 | phy->ops.commit = e1000e_phy_sw_reset; | |
eab50ffb | 492 | break; |
0be84010 BA |
493 | case e1000_phy_82578: |
494 | phy->ops.check_polarity = e1000_check_polarity_m88; | |
495 | phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88; | |
496 | phy->ops.get_cable_length = e1000e_get_cable_length_m88; | |
497 | phy->ops.get_info = e1000e_get_phy_info_m88; | |
498 | break; | |
499 | default: | |
500 | ret_val = -E1000_ERR_PHY; | |
501 | break; | |
a4f58f54 BA |
502 | } |
503 | ||
504 | return ret_val; | |
505 | } | |
506 | ||
bc7f75fa AK |
507 | /** |
508 | * e1000_init_phy_params_ich8lan - Initialize PHY function pointers | |
509 | * @hw: pointer to the HW structure | |
510 | * | |
511 | * Initialize family-specific PHY parameters and function pointers. | |
512 | **/ | |
513 | static s32 e1000_init_phy_params_ich8lan(struct e1000_hw *hw) | |
514 | { | |
515 | struct e1000_phy_info *phy = &hw->phy; | |
516 | s32 ret_val; | |
517 | u16 i = 0; | |
518 | ||
e80bd1d1 BA |
519 | phy->addr = 1; |
520 | phy->reset_delay_us = 100; | |
bc7f75fa | 521 | |
e80bd1d1 BA |
522 | phy->ops.power_up = e1000_power_up_phy_copper; |
523 | phy->ops.power_down = e1000_power_down_phy_copper_ich8lan; | |
17f208de | 524 | |
e921eb1a | 525 | /* We may need to do this twice - once for IGP and if that fails, |
97ac8cae BA |
526 | * we'll set BM func pointers and try again |
527 | */ | |
528 | ret_val = e1000e_determine_phy_address(hw); | |
529 | if (ret_val) { | |
94d8186a | 530 | phy->ops.write_reg = e1000e_write_phy_reg_bm; |
e80bd1d1 | 531 | phy->ops.read_reg = e1000e_read_phy_reg_bm; |
97ac8cae | 532 | ret_val = e1000e_determine_phy_address(hw); |
9b71b419 BA |
533 | if (ret_val) { |
534 | e_dbg("Cannot determine PHY addr. Erroring out\n"); | |
97ac8cae | 535 | return ret_val; |
9b71b419 | 536 | } |
97ac8cae BA |
537 | } |
538 | ||
bc7f75fa AK |
539 | phy->id = 0; |
540 | while ((e1000_phy_unknown == e1000e_get_phy_type_from_id(phy->id)) && | |
541 | (i++ < 100)) { | |
ab6973ae | 542 | usleep_range(1000, 1100); |
bc7f75fa AK |
543 | ret_val = e1000e_get_phy_id(hw); |
544 | if (ret_val) | |
545 | return ret_val; | |
546 | } | |
547 | ||
548 | /* Verify phy id */ | |
549 | switch (phy->id) { | |
550 | case IGP03E1000_E_PHY_ID: | |
551 | phy->type = e1000_phy_igp_3; | |
552 | phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; | |
94d8186a BA |
553 | phy->ops.read_reg_locked = e1000e_read_phy_reg_igp_locked; |
554 | phy->ops.write_reg_locked = e1000e_write_phy_reg_igp_locked; | |
0be84010 BA |
555 | phy->ops.get_info = e1000e_get_phy_info_igp; |
556 | phy->ops.check_polarity = e1000_check_polarity_igp; | |
557 | phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_igp; | |
bc7f75fa AK |
558 | break; |
559 | case IFE_E_PHY_ID: | |
560 | case IFE_PLUS_E_PHY_ID: | |
561 | case IFE_C_E_PHY_ID: | |
562 | phy->type = e1000_phy_ife; | |
563 | phy->autoneg_mask = E1000_ALL_NOT_GIG; | |
0be84010 BA |
564 | phy->ops.get_info = e1000_get_phy_info_ife; |
565 | phy->ops.check_polarity = e1000_check_polarity_ife; | |
566 | phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_ife; | |
bc7f75fa | 567 | break; |
97ac8cae BA |
568 | case BME1000_E_PHY_ID: |
569 | phy->type = e1000_phy_bm; | |
570 | phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT; | |
94d8186a BA |
571 | phy->ops.read_reg = e1000e_read_phy_reg_bm; |
572 | phy->ops.write_reg = e1000e_write_phy_reg_bm; | |
573 | phy->ops.commit = e1000e_phy_sw_reset; | |
0be84010 BA |
574 | phy->ops.get_info = e1000e_get_phy_info_m88; |
575 | phy->ops.check_polarity = e1000_check_polarity_m88; | |
576 | phy->ops.force_speed_duplex = e1000e_phy_force_speed_duplex_m88; | |
97ac8cae | 577 | break; |
bc7f75fa AK |
578 | default: |
579 | return -E1000_ERR_PHY; | |
bc7f75fa AK |
580 | } |
581 | ||
582 | return 0; | |
583 | } | |
584 | ||
585 | /** | |
586 | * e1000_init_nvm_params_ich8lan - Initialize NVM function pointers | |
587 | * @hw: pointer to the HW structure | |
588 | * | |
589 | * Initialize family-specific NVM parameters and function | |
590 | * pointers. | |
591 | **/ | |
592 | static s32 e1000_init_nvm_params_ich8lan(struct e1000_hw *hw) | |
593 | { | |
594 | struct e1000_nvm_info *nvm = &hw->nvm; | |
595 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | |
148675a7 | 596 | u32 gfpreg, sector_base_addr, sector_end_addr; |
bc7f75fa | 597 | u16 i; |
79849ebc | 598 | u32 nvm_size; |
bc7f75fa | 599 | |
bc7f75fa | 600 | nvm->type = e1000_nvm_flash_sw; |
9d17ce49 | 601 | |
c8744f44 | 602 | if (hw->mac.type >= e1000_pch_spt) { |
9d17ce49 YL |
603 | /* in SPT, gfpreg doesn't exist. NVM size is taken from the |
604 | * STRAP register. This is because in SPT the GbE Flash region | |
605 | * is no longer accessed through the flash registers. Instead, | |
606 | * the mechanism has changed, and the Flash region access | |
607 | * registers are now implemented in GbE memory space. | |
608 | */ | |
79849ebc DE |
609 | nvm->flash_base_addr = 0; |
610 | nvm_size = (((er32(STRAP) >> 1) & 0x1F) + 1) | |
611 | * NVM_SIZE_MULTIPLIER; | |
612 | nvm->flash_bank_size = nvm_size / 2; | |
613 | /* Adjust to word count */ | |
614 | nvm->flash_bank_size /= sizeof(u16); | |
615 | /* Set the base address for flash register access */ | |
616 | hw->flash_address = hw->hw_addr + E1000_FLASH_BASE_ADDR; | |
617 | } else { | |
9d17ce49 | 618 | /* Can't read flash registers if register set isn't mapped. */ |
79849ebc DE |
619 | if (!hw->flash_address) { |
620 | e_dbg("ERROR: Flash registers not mapped\n"); | |
621 | return -E1000_ERR_CONFIG; | |
622 | } | |
bc7f75fa | 623 | |
79849ebc | 624 | gfpreg = er32flash(ICH_FLASH_GFPREG); |
bc7f75fa | 625 | |
79849ebc DE |
626 | /* sector_X_addr is a "sector"-aligned address (4096 bytes) |
627 | * Add 1 to sector_end_addr since this sector is included in | |
628 | * the overall size. | |
629 | */ | |
630 | sector_base_addr = gfpreg & FLASH_GFPREG_BASE_MASK; | |
631 | sector_end_addr = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK) + 1; | |
bc7f75fa | 632 | |
79849ebc DE |
633 | /* flash_base_addr is byte-aligned */ |
634 | nvm->flash_base_addr = sector_base_addr | |
635 | << FLASH_SECTOR_ADDR_SHIFT; | |
bc7f75fa | 636 | |
79849ebc DE |
637 | /* find total size of the NVM, then cut in half since the total |
638 | * size represents two separate NVM banks. | |
639 | */ | |
640 | nvm->flash_bank_size = ((sector_end_addr - sector_base_addr) | |
641 | << FLASH_SECTOR_ADDR_SHIFT); | |
642 | nvm->flash_bank_size /= 2; | |
643 | /* Adjust to word count */ | |
644 | nvm->flash_bank_size /= sizeof(u16); | |
645 | } | |
bc7f75fa AK |
646 | |
647 | nvm->word_size = E1000_ICH8_SHADOW_RAM_WORDS; | |
648 | ||
649 | /* Clear shadow ram */ | |
650 | for (i = 0; i < nvm->word_size; i++) { | |
564ea9bb | 651 | dev_spec->shadow_ram[i].modified = false; |
e80bd1d1 | 652 | dev_spec->shadow_ram[i].value = 0xFFFF; |
bc7f75fa AK |
653 | } |
654 | ||
655 | return 0; | |
656 | } | |
657 | ||
658 | /** | |
659 | * e1000_init_mac_params_ich8lan - Initialize MAC function pointers | |
660 | * @hw: pointer to the HW structure | |
661 | * | |
662 | * Initialize family-specific MAC parameters and function | |
663 | * pointers. | |
664 | **/ | |
ec34c170 | 665 | static s32 e1000_init_mac_params_ich8lan(struct e1000_hw *hw) |
bc7f75fa | 666 | { |
bc7f75fa AK |
667 | struct e1000_mac_info *mac = &hw->mac; |
668 | ||
669 | /* Set media type function pointer */ | |
318a94d6 | 670 | hw->phy.media_type = e1000_media_type_copper; |
bc7f75fa AK |
671 | |
672 | /* Set mta register count */ | |
673 | mac->mta_reg_count = 32; | |
674 | /* Set rar entry count */ | |
675 | mac->rar_entry_count = E1000_ICH_RAR_ENTRIES; | |
676 | if (mac->type == e1000_ich8lan) | |
677 | mac->rar_entry_count--; | |
a65a4a0d BA |
678 | /* FWSM register */ |
679 | mac->has_fwsm = true; | |
680 | /* ARC subsystem not supported */ | |
681 | mac->arc_subsystem_valid = false; | |
f464ba87 BA |
682 | /* Adaptive IFS supported */ |
683 | mac->adaptive_ifs = true; | |
bc7f75fa | 684 | |
2fbe4526 | 685 | /* LED and other operations */ |
a4f58f54 BA |
686 | switch (mac->type) { |
687 | case e1000_ich8lan: | |
688 | case e1000_ich9lan: | |
689 | case e1000_ich10lan: | |
eb7700dc BA |
690 | /* check management mode */ |
691 | mac->ops.check_mng_mode = e1000_check_mng_mode_ich8lan; | |
a4f58f54 | 692 | /* ID LED init */ |
d1964eb1 | 693 | mac->ops.id_led_init = e1000e_id_led_init_generic; |
dbf80dcb BA |
694 | /* blink LED */ |
695 | mac->ops.blink_led = e1000e_blink_led_generic; | |
a4f58f54 BA |
696 | /* setup LED */ |
697 | mac->ops.setup_led = e1000e_setup_led_generic; | |
698 | /* cleanup LED */ | |
699 | mac->ops.cleanup_led = e1000_cleanup_led_ich8lan; | |
700 | /* turn on/off LED */ | |
701 | mac->ops.led_on = e1000_led_on_ich8lan; | |
702 | mac->ops.led_off = e1000_led_off_ich8lan; | |
703 | break; | |
d3738bb8 | 704 | case e1000_pch2lan: |
69e1e019 BA |
705 | mac->rar_entry_count = E1000_PCH2_RAR_ENTRIES; |
706 | mac->ops.rar_set = e1000_rar_set_pch2lan; | |
5463fce6 | 707 | fallthrough; |
2fbe4526 | 708 | case e1000_pch_lpt: |
79849ebc | 709 | case e1000_pch_spt: |
c8744f44 | 710 | case e1000_pch_cnp: |
fb776f5d | 711 | case e1000_pch_tgp: |
59e46688 | 712 | case e1000_pch_adp: |
cc23f4f0 | 713 | case e1000_pch_mtp: |
69e1e019 | 714 | case e1000_pchlan: |
eb7700dc BA |
715 | /* check management mode */ |
716 | mac->ops.check_mng_mode = e1000_check_mng_mode_pchlan; | |
a4f58f54 BA |
717 | /* ID LED init */ |
718 | mac->ops.id_led_init = e1000_id_led_init_pchlan; | |
719 | /* setup LED */ | |
720 | mac->ops.setup_led = e1000_setup_led_pchlan; | |
721 | /* cleanup LED */ | |
722 | mac->ops.cleanup_led = e1000_cleanup_led_pchlan; | |
723 | /* turn on/off LED */ | |
724 | mac->ops.led_on = e1000_led_on_pchlan; | |
725 | mac->ops.led_off = e1000_led_off_pchlan; | |
726 | break; | |
727 | default: | |
728 | break; | |
729 | } | |
730 | ||
c8744f44 | 731 | if (mac->type >= e1000_pch_lpt) { |
2fbe4526 BA |
732 | mac->rar_entry_count = E1000_PCH_LPT_RAR_ENTRIES; |
733 | mac->ops.rar_set = e1000_rar_set_pch_lpt; | |
ea8179a7 BA |
734 | mac->ops.setup_physical_interface = |
735 | e1000_setup_copper_link_pch_lpt; | |
b3e5bf1f | 736 | mac->ops.rar_get_count = e1000_rar_get_count_pch_lpt; |
2fbe4526 BA |
737 | } |
738 | ||
bc7f75fa AK |
739 | /* Enable PCS Lock-loss workaround for ICH8 */ |
740 | if (mac->type == e1000_ich8lan) | |
564ea9bb | 741 | e1000e_set_kmrn_lock_loss_workaround_ich8lan(hw, true); |
bc7f75fa AK |
742 | |
743 | return 0; | |
744 | } | |
745 | ||
4ddc48a9 BA |
746 | /** |
747 | * __e1000_access_emi_reg_locked - Read/write EMI register | |
748 | * @hw: pointer to the HW structure | |
b50f7bca | 749 | * @address: EMI address to program |
4ddc48a9 BA |
750 | * @data: pointer to value to read/write from/to the EMI address |
751 | * @read: boolean flag to indicate read or write | |
752 | * | |
753 | * This helper function assumes the SW/FW/HW Semaphore is already acquired. | |
754 | **/ | |
755 | static s32 __e1000_access_emi_reg_locked(struct e1000_hw *hw, u16 address, | |
756 | u16 *data, bool read) | |
757 | { | |
70806a7f | 758 | s32 ret_val; |
4ddc48a9 BA |
759 | |
760 | ret_val = e1e_wphy_locked(hw, I82579_EMI_ADDR, address); | |
761 | if (ret_val) | |
762 | return ret_val; | |
763 | ||
764 | if (read) | |
765 | ret_val = e1e_rphy_locked(hw, I82579_EMI_DATA, data); | |
766 | else | |
767 | ret_val = e1e_wphy_locked(hw, I82579_EMI_DATA, *data); | |
768 | ||
769 | return ret_val; | |
770 | } | |
771 | ||
772 | /** | |
773 | * e1000_read_emi_reg_locked - Read Extended Management Interface register | |
774 | * @hw: pointer to the HW structure | |
775 | * @addr: EMI address to program | |
776 | * @data: value to be read from the EMI address | |
777 | * | |
778 | * Assumes the SW/FW/HW Semaphore is already acquired. | |
779 | **/ | |
203e4151 | 780 | s32 e1000_read_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 *data) |
4ddc48a9 BA |
781 | { |
782 | return __e1000_access_emi_reg_locked(hw, addr, data, true); | |
783 | } | |
784 | ||
785 | /** | |
786 | * e1000_write_emi_reg_locked - Write Extended Management Interface register | |
787 | * @hw: pointer to the HW structure | |
788 | * @addr: EMI address to program | |
789 | * @data: value to be written to the EMI address | |
790 | * | |
791 | * Assumes the SW/FW/HW Semaphore is already acquired. | |
792 | **/ | |
d495bcb8 | 793 | s32 e1000_write_emi_reg_locked(struct e1000_hw *hw, u16 addr, u16 data) |
4ddc48a9 BA |
794 | { |
795 | return __e1000_access_emi_reg_locked(hw, addr, &data, false); | |
796 | } | |
797 | ||
e52997f9 BA |
798 | /** |
799 | * e1000_set_eee_pchlan - Enable/disable EEE support | |
800 | * @hw: pointer to the HW structure | |
801 | * | |
3d4d5755 BA |
802 | * Enable/disable EEE based on setting in dev_spec structure, the duplex of |
803 | * the link and the EEE capabilities of the link partner. The LPI Control | |
804 | * register bits will remain set only if/when link is up. | |
a03206ed DE |
805 | * |
806 | * EEE LPI must not be asserted earlier than one second after link is up. | |
807 | * On 82579, EEE LPI should not be enabled until such time otherwise there | |
808 | * can be link issues with some switches. Other devices can have EEE LPI | |
809 | * enabled immediately upon link up since they have a timer in hardware which | |
810 | * prevents LPI from being asserted too early. | |
e52997f9 | 811 | **/ |
a03206ed | 812 | s32 e1000_set_eee_pchlan(struct e1000_hw *hw) |
e52997f9 | 813 | { |
2fbe4526 | 814 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; |
3d4d5755 | 815 | s32 ret_val; |
d495bcb8 | 816 | u16 lpa, pcs_status, adv, adv_addr, lpi_ctrl, data; |
e52997f9 | 817 | |
d495bcb8 BA |
818 | switch (hw->phy.type) { |
819 | case e1000_phy_82579: | |
820 | lpa = I82579_EEE_LP_ABILITY; | |
821 | pcs_status = I82579_EEE_PCS_STATUS; | |
822 | adv_addr = I82579_EEE_ADVERTISEMENT; | |
823 | break; | |
824 | case e1000_phy_i217: | |
825 | lpa = I217_EEE_LP_ABILITY; | |
826 | pcs_status = I217_EEE_PCS_STATUS; | |
827 | adv_addr = I217_EEE_ADVERTISEMENT; | |
828 | break; | |
829 | default: | |
5015e53a | 830 | return 0; |
d495bcb8 | 831 | } |
e52997f9 | 832 | |
3d4d5755 | 833 | ret_val = hw->phy.ops.acquire(hw); |
e52997f9 | 834 | if (ret_val) |
5015e53a | 835 | return ret_val; |
e52997f9 | 836 | |
3d4d5755 | 837 | ret_val = e1e_rphy_locked(hw, I82579_LPI_CTRL, &lpi_ctrl); |
2fbe4526 | 838 | if (ret_val) |
3d4d5755 BA |
839 | goto release; |
840 | ||
841 | /* Clear bits that enable EEE in various speeds */ | |
842 | lpi_ctrl &= ~I82579_LPI_CTRL_ENABLE_MASK; | |
843 | ||
844 | /* Enable EEE if not disabled by user */ | |
845 | if (!dev_spec->eee_disable) { | |
2fbe4526 | 846 | /* Save off link partner's EEE ability */ |
3d4d5755 | 847 | ret_val = e1000_read_emi_reg_locked(hw, lpa, |
4ddc48a9 | 848 | &dev_spec->eee_lp_ability); |
2fbe4526 BA |
849 | if (ret_val) |
850 | goto release; | |
2fbe4526 | 851 | |
d495bcb8 BA |
852 | /* Read EEE advertisement */ |
853 | ret_val = e1000_read_emi_reg_locked(hw, adv_addr, &adv); | |
854 | if (ret_val) | |
855 | goto release; | |
856 | ||
3d4d5755 | 857 | /* Enable EEE only for speeds in which the link partner is |
d495bcb8 | 858 | * EEE capable and for which we advertise EEE. |
2fbe4526 | 859 | */ |
d495bcb8 | 860 | if (adv & dev_spec->eee_lp_ability & I82579_EEE_1000_SUPPORTED) |
3d4d5755 BA |
861 | lpi_ctrl |= I82579_LPI_CTRL_1000_ENABLE; |
862 | ||
d495bcb8 | 863 | if (adv & dev_spec->eee_lp_ability & I82579_EEE_100_SUPPORTED) { |
c2ade1a4 BA |
864 | e1e_rphy_locked(hw, MII_LPA, &data); |
865 | if (data & LPA_100FULL) | |
3d4d5755 BA |
866 | lpi_ctrl |= I82579_LPI_CTRL_100_ENABLE; |
867 | else | |
868 | /* EEE is not supported in 100Half, so ignore | |
869 | * partner's EEE in 100 ability if full-duplex | |
870 | * is not advertised. | |
871 | */ | |
872 | dev_spec->eee_lp_ability &= | |
873 | ~I82579_EEE_100_SUPPORTED; | |
874 | } | |
2fbe4526 BA |
875 | } |
876 | ||
7142a55c DE |
877 | if (hw->phy.type == e1000_phy_82579) { |
878 | ret_val = e1000_read_emi_reg_locked(hw, I82579_LPI_PLL_SHUT, | |
879 | &data); | |
880 | if (ret_val) | |
881 | goto release; | |
882 | ||
883 | data &= ~I82579_LPI_100_PLL_SHUT; | |
884 | ret_val = e1000_write_emi_reg_locked(hw, I82579_LPI_PLL_SHUT, | |
885 | data); | |
886 | } | |
887 | ||
d495bcb8 BA |
888 | /* R/Clr IEEE MMD 3.1 bits 11:10 - Tx/Rx LPI Received */ |
889 | ret_val = e1000_read_emi_reg_locked(hw, pcs_status, &data); | |
890 | if (ret_val) | |
891 | goto release; | |
892 | ||
3d4d5755 BA |
893 | ret_val = e1e_wphy_locked(hw, I82579_LPI_CTRL, lpi_ctrl); |
894 | release: | |
895 | hw->phy.ops.release(hw); | |
896 | ||
897 | return ret_val; | |
e52997f9 BA |
898 | } |
899 | ||
e08f626b BA |
900 | /** |
901 | * e1000_k1_workaround_lpt_lp - K1 workaround on Lynxpoint-LP | |
902 | * @hw: pointer to the HW structure | |
903 | * @link: link up bool flag | |
904 | * | |
905 | * When K1 is enabled for 1Gbps, the MAC can miss 2 DMA completion indications | |
906 | * preventing further DMA write requests. Workaround the issue by disabling | |
907 | * the de-assertion of the clock request when in 1Gpbs mode. | |
e0236ad9 BA |
908 | * Also, set appropriate Tx re-transmission timeouts for 10 and 100Half link |
909 | * speeds in order to avoid Tx hangs. | |
e08f626b BA |
910 | **/ |
911 | static s32 e1000_k1_workaround_lpt_lp(struct e1000_hw *hw, bool link) | |
912 | { | |
913 | u32 fextnvm6 = er32(FEXTNVM6); | |
e0236ad9 | 914 | u32 status = er32(STATUS); |
e08f626b | 915 | s32 ret_val = 0; |
e0236ad9 | 916 | u16 reg; |
e08f626b | 917 | |
e0236ad9 | 918 | if (link && (status & E1000_STATUS_SPEED_1000)) { |
e08f626b BA |
919 | ret_val = hw->phy.ops.acquire(hw); |
920 | if (ret_val) | |
921 | return ret_val; | |
922 | ||
923 | ret_val = | |
924 | e1000e_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG, | |
e0236ad9 | 925 | ®); |
e08f626b BA |
926 | if (ret_val) |
927 | goto release; | |
928 | ||
929 | ret_val = | |
930 | e1000e_write_kmrn_reg_locked(hw, | |
931 | E1000_KMRNCTRLSTA_K1_CONFIG, | |
e0236ad9 | 932 | reg & |
e08f626b BA |
933 | ~E1000_KMRNCTRLSTA_K1_ENABLE); |
934 | if (ret_val) | |
935 | goto release; | |
936 | ||
937 | usleep_range(10, 20); | |
938 | ||
939 | ew32(FEXTNVM6, fextnvm6 | E1000_FEXTNVM6_REQ_PLL_CLK); | |
940 | ||
941 | ret_val = | |
942 | e1000e_write_kmrn_reg_locked(hw, | |
943 | E1000_KMRNCTRLSTA_K1_CONFIG, | |
e0236ad9 | 944 | reg); |
e08f626b BA |
945 | release: |
946 | hw->phy.ops.release(hw); | |
947 | } else { | |
948 | /* clear FEXTNVM6 bit 8 on link down or 10/100 */ | |
e0236ad9 BA |
949 | fextnvm6 &= ~E1000_FEXTNVM6_REQ_PLL_CLK; |
950 | ||
79849ebc DE |
951 | if ((hw->phy.revision > 5) || !link || |
952 | ((status & E1000_STATUS_SPEED_100) && | |
953 | (status & E1000_STATUS_FD))) | |
e0236ad9 BA |
954 | goto update_fextnvm6; |
955 | ||
956 | ret_val = e1e_rphy(hw, I217_INBAND_CTRL, ®); | |
957 | if (ret_val) | |
958 | return ret_val; | |
959 | ||
960 | /* Clear link status transmit timeout */ | |
961 | reg &= ~I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_MASK; | |
962 | ||
963 | if (status & E1000_STATUS_SPEED_100) { | |
964 | /* Set inband Tx timeout to 5x10us for 100Half */ | |
965 | reg |= 5 << I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT; | |
966 | ||
967 | /* Do not extend the K1 entry latency for 100Half */ | |
968 | fextnvm6 &= ~E1000_FEXTNVM6_ENABLE_K1_ENTRY_CONDITION; | |
969 | } else { | |
970 | /* Set inband Tx timeout to 50x10us for 10Full/Half */ | |
971 | reg |= 50 << | |
972 | I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT; | |
973 | ||
974 | /* Extend the K1 entry latency for 10 Mbps */ | |
975 | fextnvm6 |= E1000_FEXTNVM6_ENABLE_K1_ENTRY_CONDITION; | |
976 | } | |
977 | ||
978 | ret_val = e1e_wphy(hw, I217_INBAND_CTRL, reg); | |
979 | if (ret_val) | |
980 | return ret_val; | |
981 | ||
982 | update_fextnvm6: | |
983 | ew32(FEXTNVM6, fextnvm6); | |
e08f626b BA |
984 | } |
985 | ||
986 | return ret_val; | |
987 | } | |
988 | ||
cf8fb73c BA |
989 | /** |
990 | * e1000_platform_pm_pch_lpt - Set platform power management values | |
991 | * @hw: pointer to the HW structure | |
992 | * @link: bool indicating link status | |
993 | * | |
994 | * Set the Latency Tolerance Reporting (LTR) values for the "PCIe-like" | |
995 | * GbE MAC in the Lynx Point PCH based on Rx buffer size and link speed | |
996 | * when link is up (which must not exceed the maximum latency supported | |
997 | * by the platform), otherwise specify there is no LTR requirement. | |
998 | * Unlike true-PCIe devices which set the LTR maximum snoop/no-snoop | |
999 | * latencies in the LTR Extended Capability Structure in the PCIe Extended | |
1000 | * Capability register set, on this device LTR is set by writing the | |
1001 | * equivalent snoop/no-snoop latencies in the LTRV register in the MAC and | |
1002 | * set the SEND bit to send an Intel On-chip System Fabric sideband (IOSF-SB) | |
1003 | * message to the PMC. | |
1004 | **/ | |
1005 | static s32 e1000_platform_pm_pch_lpt(struct e1000_hw *hw, bool link) | |
1006 | { | |
1007 | u32 reg = link << (E1000_LTRV_REQ_SHIFT + E1000_LTRV_NOSNOOP_SHIFT) | | |
1008 | link << E1000_LTRV_REQ_SHIFT | E1000_LTRV_SEND; | |
eb486ba6 SN |
1009 | u16 max_ltr_enc_d = 0; /* maximum LTR decoded by platform */ |
1010 | u16 lat_enc_d = 0; /* latency decoded */ | |
cf8fb73c BA |
1011 | u16 lat_enc = 0; /* latency encoded */ |
1012 | ||
1013 | if (link) { | |
1014 | u16 speed, duplex, scale = 0; | |
1015 | u16 max_snoop, max_nosnoop; | |
1016 | u16 max_ltr_enc; /* max LTR latency encoded */ | |
30544af5 | 1017 | u64 value; |
cf8fb73c BA |
1018 | u32 rxa; |
1019 | ||
1020 | if (!hw->adapter->max_frame_size) { | |
1021 | e_dbg("max_frame_size not set.\n"); | |
1022 | return -E1000_ERR_CONFIG; | |
1023 | } | |
1024 | ||
1025 | hw->mac.ops.get_link_up_info(hw, &speed, &duplex); | |
1026 | if (!speed) { | |
1027 | e_dbg("Speed not set.\n"); | |
1028 | return -E1000_ERR_CONFIG; | |
1029 | } | |
1030 | ||
1031 | /* Rx Packet Buffer Allocation size (KB) */ | |
1032 | rxa = er32(PBA) & E1000_PBA_RXA_MASK; | |
1033 | ||
1034 | /* Determine the maximum latency tolerated by the device. | |
1035 | * | |
1036 | * Per the PCIe spec, the tolerated latencies are encoded as | |
1037 | * a 3-bit encoded scale (only 0-5 are valid) multiplied by | |
1038 | * a 10-bit value (0-1023) to provide a range from 1 ns to | |
1039 | * 2^25*(2^10-1) ns. The scale is encoded as 0=2^0ns, | |
1040 | * 1=2^5ns, 2=2^10ns,...5=2^25ns. | |
1041 | */ | |
bfc9473b YL |
1042 | rxa *= 512; |
1043 | value = (rxa > hw->adapter->max_frame_size) ? | |
1044 | (rxa - hw->adapter->max_frame_size) * (16000 / speed) : | |
1045 | 0; | |
cf8fb73c | 1046 | |
cf8fb73c BA |
1047 | while (value > PCI_LTR_VALUE_MASK) { |
1048 | scale++; | |
18dd2392 | 1049 | value = DIV_ROUND_UP(value, BIT(5)); |
cf8fb73c BA |
1050 | } |
1051 | if (scale > E1000_LTRV_SCALE_MAX) { | |
1052 | e_dbg("Invalid LTR latency scale %d\n", scale); | |
1053 | return -E1000_ERR_CONFIG; | |
1054 | } | |
1055 | lat_enc = (u16)((scale << PCI_LTR_SCALE_SHIFT) | value); | |
1056 | ||
1057 | /* Determine the maximum latency tolerated by the platform */ | |
1058 | pci_read_config_word(hw->adapter->pdev, E1000_PCI_LTR_CAP_LPT, | |
1059 | &max_snoop); | |
1060 | pci_read_config_word(hw->adapter->pdev, | |
1061 | E1000_PCI_LTR_CAP_LPT + 2, &max_nosnoop); | |
1062 | max_ltr_enc = max_t(u16, max_snoop, max_nosnoop); | |
1063 | ||
eb486ba6 SN |
1064 | lat_enc_d = (lat_enc & E1000_LTRV_VALUE_MASK) * |
1065 | (1U << (E1000_LTRV_SCALE_FACTOR * | |
1066 | ((lat_enc & E1000_LTRV_SCALE_MASK) | |
1067 | >> E1000_LTRV_SCALE_SHIFT))); | |
1068 | ||
1069 | max_ltr_enc_d = (max_ltr_enc & E1000_LTRV_VALUE_MASK) * | |
1070 | (1U << (E1000_LTRV_SCALE_FACTOR * | |
1071 | ((max_ltr_enc & E1000_LTRV_SCALE_MASK) | |
1072 | >> E1000_LTRV_SCALE_SHIFT))); | |
1073 | ||
1074 | if (lat_enc_d > max_ltr_enc_d) | |
cf8fb73c BA |
1075 | lat_enc = max_ltr_enc; |
1076 | } | |
1077 | ||
1078 | /* Set Snoop and No-Snoop latencies the same */ | |
1079 | reg |= lat_enc | (lat_enc << E1000_LTRV_NOSNOOP_SHIFT); | |
1080 | ew32(LTRV, reg); | |
1081 | ||
1082 | return 0; | |
1083 | } | |
1084 | ||
74f350ee DE |
1085 | /** |
1086 | * e1000_enable_ulp_lpt_lp - configure Ultra Low Power mode for LynxPoint-LP | |
1087 | * @hw: pointer to the HW structure | |
1088 | * @to_sx: boolean indicating a system power state transition to Sx | |
1089 | * | |
1090 | * When link is down, configure ULP mode to significantly reduce the power | |
1091 | * to the PHY. If on a Manageability Engine (ME) enabled system, tell the | |
1092 | * ME firmware to start the ULP configuration. If not on an ME enabled | |
1093 | * system, configure the ULP mode by software. | |
1094 | */ | |
1095 | s32 e1000_enable_ulp_lpt_lp(struct e1000_hw *hw, bool to_sx) | |
1096 | { | |
1097 | u32 mac_reg; | |
1098 | s32 ret_val = 0; | |
1099 | u16 phy_reg; | |
6607c99e | 1100 | u16 oem_reg = 0; |
74f350ee DE |
1101 | |
1102 | if ((hw->mac.type < e1000_pch_lpt) || | |
1103 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPT_I217_LM) || | |
1104 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPT_I217_V) || | |
1105 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM2) || | |
1106 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V2) || | |
1107 | (hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_on)) | |
1108 | return 0; | |
1109 | ||
1110 | if (er32(FWSM) & E1000_ICH_FWSM_FW_VALID) { | |
1111 | /* Request ME configure ULP mode in the PHY */ | |
1112 | mac_reg = er32(H2ME); | |
1113 | mac_reg |= E1000_H2ME_ULP | E1000_H2ME_ENFORCE_SETTINGS; | |
1114 | ew32(H2ME, mac_reg); | |
1115 | ||
1116 | goto out; | |
1117 | } | |
1118 | ||
1119 | if (!to_sx) { | |
1120 | int i = 0; | |
1121 | ||
1122 | /* Poll up to 5 seconds for Cable Disconnected indication */ | |
1123 | while (!(er32(FEXT) & E1000_FEXT_PHY_CABLE_DISCONNECTED)) { | |
1124 | /* Bail if link is re-acquired */ | |
1125 | if (er32(STATUS) & E1000_STATUS_LU) | |
1126 | return -E1000_ERR_PHY; | |
1127 | ||
1128 | if (i++ == 100) | |
1129 | break; | |
1130 | ||
1131 | msleep(50); | |
1132 | } | |
1133 | e_dbg("CABLE_DISCONNECTED %s set after %dmsec\n", | |
1134 | (er32(FEXT) & | |
1135 | E1000_FEXT_PHY_CABLE_DISCONNECTED) ? "" : "not", i * 50); | |
1136 | } | |
1137 | ||
1138 | ret_val = hw->phy.ops.acquire(hw); | |
1139 | if (ret_val) | |
1140 | goto out; | |
1141 | ||
6607c99e YL |
1142 | /* Force SMBus mode in PHY */ |
1143 | ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg); | |
1144 | if (ret_val) | |
1145 | goto release; | |
1146 | phy_reg |= CV_SMB_CTRL_FORCE_SMBUS; | |
1147 | e1000_write_phy_reg_hv_locked(hw, CV_SMB_CTRL, phy_reg); | |
1148 | ||
1149 | /* Force SMBus mode in MAC */ | |
1150 | mac_reg = er32(CTRL_EXT); | |
1151 | mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS; | |
1152 | ew32(CTRL_EXT, mac_reg); | |
1153 | ||
79849ebc DE |
1154 | /* Si workaround for ULP entry flow on i127/rev6 h/w. Enable |
1155 | * LPLU and disable Gig speed when entering ULP | |
1156 | */ | |
1157 | if ((hw->phy.type == e1000_phy_i217) && (hw->phy.revision == 6)) { | |
1158 | ret_val = e1000_read_phy_reg_hv_locked(hw, HV_OEM_BITS, | |
6607c99e | 1159 | &oem_reg); |
79849ebc DE |
1160 | if (ret_val) |
1161 | goto release; | |
6607c99e YL |
1162 | |
1163 | phy_reg = oem_reg; | |
79849ebc | 1164 | phy_reg |= HV_OEM_BITS_LPLU | HV_OEM_BITS_GBE_DIS; |
6607c99e | 1165 | |
79849ebc DE |
1166 | ret_val = e1000_write_phy_reg_hv_locked(hw, HV_OEM_BITS, |
1167 | phy_reg); | |
6607c99e | 1168 | |
79849ebc DE |
1169 | if (ret_val) |
1170 | goto release; | |
1171 | } | |
1172 | ||
74f350ee DE |
1173 | /* Set Inband ULP Exit, Reset to SMBus mode and |
1174 | * Disable SMBus Release on PERST# in PHY | |
1175 | */ | |
1176 | ret_val = e1000_read_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, &phy_reg); | |
1177 | if (ret_val) | |
1178 | goto release; | |
1179 | phy_reg |= (I218_ULP_CONFIG1_RESET_TO_SMBUS | | |
1180 | I218_ULP_CONFIG1_DISABLE_SMB_PERST); | |
1181 | if (to_sx) { | |
1182 | if (er32(WUFC) & E1000_WUFC_LNKC) | |
1183 | phy_reg |= I218_ULP_CONFIG1_WOL_HOST; | |
6607c99e YL |
1184 | else |
1185 | phy_reg &= ~I218_ULP_CONFIG1_WOL_HOST; | |
74f350ee DE |
1186 | |
1187 | phy_reg |= I218_ULP_CONFIG1_STICKY_ULP; | |
6607c99e | 1188 | phy_reg &= ~I218_ULP_CONFIG1_INBAND_EXIT; |
74f350ee DE |
1189 | } else { |
1190 | phy_reg |= I218_ULP_CONFIG1_INBAND_EXIT; | |
6607c99e YL |
1191 | phy_reg &= ~I218_ULP_CONFIG1_STICKY_ULP; |
1192 | phy_reg &= ~I218_ULP_CONFIG1_WOL_HOST; | |
74f350ee DE |
1193 | } |
1194 | e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg); | |
1195 | ||
1196 | /* Set Disable SMBus Release on PERST# in MAC */ | |
1197 | mac_reg = er32(FEXTNVM7); | |
1198 | mac_reg |= E1000_FEXTNVM7_DISABLE_SMB_PERST; | |
1199 | ew32(FEXTNVM7, mac_reg); | |
1200 | ||
1201 | /* Commit ULP changes in PHY by starting auto ULP configuration */ | |
1202 | phy_reg |= I218_ULP_CONFIG1_START; | |
1203 | e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg); | |
6607c99e YL |
1204 | |
1205 | if ((hw->phy.type == e1000_phy_i217) && (hw->phy.revision == 6) && | |
1206 | to_sx && (er32(STATUS) & E1000_STATUS_LU)) { | |
1207 | ret_val = e1000_write_phy_reg_hv_locked(hw, HV_OEM_BITS, | |
1208 | oem_reg); | |
1209 | if (ret_val) | |
1210 | goto release; | |
1211 | } | |
1212 | ||
74f350ee DE |
1213 | release: |
1214 | hw->phy.ops.release(hw); | |
1215 | out: | |
1216 | if (ret_val) | |
1217 | e_dbg("Error in ULP enable flow: %d\n", ret_val); | |
1218 | else | |
1219 | hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_on; | |
1220 | ||
1221 | return ret_val; | |
1222 | } | |
1223 | ||
1224 | /** | |
1225 | * e1000_disable_ulp_lpt_lp - unconfigure Ultra Low Power mode for LynxPoint-LP | |
1226 | * @hw: pointer to the HW structure | |
1227 | * @force: boolean indicating whether or not to force disabling ULP | |
1228 | * | |
1229 | * Un-configure ULP mode when link is up, the system is transitioned from | |
1230 | * Sx or the driver is unloaded. If on a Manageability Engine (ME) enabled | |
1231 | * system, poll for an indication from ME that ULP has been un-configured. | |
1232 | * If not on an ME enabled system, un-configure the ULP mode by software. | |
1233 | * | |
1234 | * During nominal operation, this function is called when link is acquired | |
1235 | * to disable ULP mode (force=false); otherwise, for example when unloading | |
1236 | * the driver or during Sx->S0 transitions, this is called with force=true | |
1237 | * to forcibly disable ULP. | |
1238 | */ | |
1239 | static s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force) | |
1240 | { | |
1241 | s32 ret_val = 0; | |
1242 | u32 mac_reg; | |
1243 | u16 phy_reg; | |
1244 | int i = 0; | |
1245 | ||
1246 | if ((hw->mac.type < e1000_pch_lpt) || | |
1247 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPT_I217_LM) || | |
1248 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPT_I217_V) || | |
1249 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM2) || | |
1250 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V2) || | |
1251 | (hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_off)) | |
1252 | return 0; | |
1253 | ||
1254 | if (er32(FWSM) & E1000_ICH_FWSM_FW_VALID) { | |
3cf31b1a ML |
1255 | struct e1000_adapter *adapter = hw->adapter; |
1256 | bool firmware_bug = false; | |
1257 | ||
74f350ee DE |
1258 | if (force) { |
1259 | /* Request ME un-configure ULP mode in the PHY */ | |
1260 | mac_reg = er32(H2ME); | |
1261 | mac_reg &= ~E1000_H2ME_ULP; | |
1262 | mac_reg |= E1000_H2ME_ENFORCE_SETTINGS; | |
1263 | ew32(H2ME, mac_reg); | |
1264 | } | |
1265 | ||
3cf31b1a ML |
1266 | /* Poll up to 2.5 seconds for ME to clear ULP_CFG_DONE. |
1267 | * If this takes more than 1 second, show a warning indicating a | |
1268 | * firmware bug | |
1269 | */ | |
74f350ee | 1270 | while (er32(FWSM) & E1000_FWSM_ULP_CFG_DONE) { |
3cf31b1a | 1271 | if (i++ == 250) { |
74f350ee DE |
1272 | ret_val = -E1000_ERR_PHY; |
1273 | goto out; | |
1274 | } | |
3cf31b1a ML |
1275 | if (i > 100 && !firmware_bug) |
1276 | firmware_bug = true; | |
74f350ee | 1277 | |
ab6973ae | 1278 | usleep_range(10000, 11000); |
74f350ee | 1279 | } |
3cf31b1a ML |
1280 | if (firmware_bug) |
1281 | e_warn("ULP_CONFIG_DONE took %dmsec. This is a firmware bug\n", i * 10); | |
1282 | else | |
1283 | e_dbg("ULP_CONFIG_DONE cleared after %dmsec\n", i * 10); | |
74f350ee DE |
1284 | |
1285 | if (force) { | |
1286 | mac_reg = er32(H2ME); | |
1287 | mac_reg &= ~E1000_H2ME_ENFORCE_SETTINGS; | |
1288 | ew32(H2ME, mac_reg); | |
1289 | } else { | |
1290 | /* Clear H2ME.ULP after ME ULP configuration */ | |
1291 | mac_reg = er32(H2ME); | |
1292 | mac_reg &= ~E1000_H2ME_ULP; | |
1293 | ew32(H2ME, mac_reg); | |
1294 | } | |
1295 | ||
1296 | goto out; | |
1297 | } | |
1298 | ||
1299 | ret_val = hw->phy.ops.acquire(hw); | |
1300 | if (ret_val) | |
1301 | goto out; | |
1302 | ||
1303 | if (force) | |
1304 | /* Toggle LANPHYPC Value bit */ | |
1305 | e1000_toggle_lanphypc_pch_lpt(hw); | |
1306 | ||
1307 | /* Unforce SMBus mode in PHY */ | |
1308 | ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg); | |
1309 | if (ret_val) { | |
1310 | /* The MAC might be in PCIe mode, so temporarily force to | |
1311 | * SMBus mode in order to access the PHY. | |
1312 | */ | |
1313 | mac_reg = er32(CTRL_EXT); | |
1314 | mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS; | |
1315 | ew32(CTRL_EXT, mac_reg); | |
1316 | ||
1317 | msleep(50); | |
1318 | ||
1319 | ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, | |
1320 | &phy_reg); | |
1321 | if (ret_val) | |
1322 | goto release; | |
1323 | } | |
1324 | phy_reg &= ~CV_SMB_CTRL_FORCE_SMBUS; | |
1325 | e1000_write_phy_reg_hv_locked(hw, CV_SMB_CTRL, phy_reg); | |
1326 | ||
1327 | /* Unforce SMBus mode in MAC */ | |
1328 | mac_reg = er32(CTRL_EXT); | |
1329 | mac_reg &= ~E1000_CTRL_EXT_FORCE_SMBUS; | |
1330 | ew32(CTRL_EXT, mac_reg); | |
1331 | ||
1332 | /* When ULP mode was previously entered, K1 was disabled by the | |
1333 | * hardware. Re-Enable K1 in the PHY when exiting ULP. | |
1334 | */ | |
1335 | ret_val = e1000_read_phy_reg_hv_locked(hw, HV_PM_CTRL, &phy_reg); | |
1336 | if (ret_val) | |
1337 | goto release; | |
1338 | phy_reg |= HV_PM_CTRL_K1_ENABLE; | |
1339 | e1000_write_phy_reg_hv_locked(hw, HV_PM_CTRL, phy_reg); | |
1340 | ||
1341 | /* Clear ULP enabled configuration */ | |
1342 | ret_val = e1000_read_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, &phy_reg); | |
1343 | if (ret_val) | |
1344 | goto release; | |
1345 | phy_reg &= ~(I218_ULP_CONFIG1_IND | | |
1346 | I218_ULP_CONFIG1_STICKY_ULP | | |
1347 | I218_ULP_CONFIG1_RESET_TO_SMBUS | | |
1348 | I218_ULP_CONFIG1_WOL_HOST | | |
1349 | I218_ULP_CONFIG1_INBAND_EXIT | | |
c5c6d077 RA |
1350 | I218_ULP_CONFIG1_EN_ULP_LANPHYPC | |
1351 | I218_ULP_CONFIG1_DIS_CLR_STICKY_ON_PERST | | |
74f350ee DE |
1352 | I218_ULP_CONFIG1_DISABLE_SMB_PERST); |
1353 | e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg); | |
1354 | ||
1355 | /* Commit ULP changes by starting auto ULP configuration */ | |
1356 | phy_reg |= I218_ULP_CONFIG1_START; | |
1357 | e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg); | |
1358 | ||
1359 | /* Clear Disable SMBus Release on PERST# in MAC */ | |
1360 | mac_reg = er32(FEXTNVM7); | |
1361 | mac_reg &= ~E1000_FEXTNVM7_DISABLE_SMB_PERST; | |
1362 | ew32(FEXTNVM7, mac_reg); | |
1363 | ||
1364 | release: | |
1365 | hw->phy.ops.release(hw); | |
1366 | if (force) { | |
1367 | e1000_phy_hw_reset(hw); | |
1368 | msleep(50); | |
1369 | } | |
1370 | out: | |
1371 | if (ret_val) | |
1372 | e_dbg("Error in ULP disable flow: %d\n", ret_val); | |
1373 | else | |
1374 | hw->dev_spec.ich8lan.ulp_state = e1000_ulp_state_off; | |
1375 | ||
1376 | return ret_val; | |
1377 | } | |
1378 | ||
7d3cabbc BA |
1379 | /** |
1380 | * e1000_check_for_copper_link_ich8lan - Check for link (Copper) | |
1381 | * @hw: pointer to the HW structure | |
1382 | * | |
1383 | * Checks to see of the link status of the hardware has changed. If a | |
1384 | * change in link status has been detected, then we read the PHY registers | |
1385 | * to get the current speed/duplex if link exists. | |
1386 | **/ | |
1387 | static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw) | |
1388 | { | |
1389 | struct e1000_mac_info *mac = &hw->mac; | |
79849ebc DE |
1390 | s32 ret_val, tipg_reg = 0; |
1391 | u16 emi_addr, emi_val = 0; | |
7d3cabbc | 1392 | bool link; |
1d2101a7 | 1393 | u16 phy_reg; |
7d3cabbc | 1394 | |
e921eb1a | 1395 | /* We only want to go out to the PHY registers to see if Auto-Neg |
7d3cabbc BA |
1396 | * has completed and/or if our link status has changed. The |
1397 | * get_link_status flag is set upon receiving a Link Status | |
1398 | * Change or Rx Sequence Error interrupt. | |
1399 | */ | |
5015e53a | 1400 | if (!mac->get_link_status) |
3016e0a0 | 1401 | return 0; |
e2710dbf | 1402 | mac->get_link_status = false; |
7d3cabbc | 1403 | |
e921eb1a | 1404 | /* First we want to see if the MII Status Register reports |
7d3cabbc BA |
1405 | * link. If so, then we want to get the current speed/duplex |
1406 | * of the PHY. | |
1407 | */ | |
1408 | ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link); | |
1409 | if (ret_val) | |
e2710dbf | 1410 | goto out; |
7d3cabbc | 1411 | |
1d5846b9 BA |
1412 | if (hw->mac.type == e1000_pchlan) { |
1413 | ret_val = e1000_k1_gig_workaround_hv(hw, link); | |
1414 | if (ret_val) | |
e2710dbf | 1415 | goto out; |
1d5846b9 BA |
1416 | } |
1417 | ||
fbb9ab10 | 1418 | /* When connected at 10Mbps half-duplex, some parts are excessively |
772d05c5 BA |
1419 | * aggressive resulting in many collisions. To avoid this, increase |
1420 | * the IPG and reduce Rx latency in the PHY. | |
1421 | */ | |
c8744f44 | 1422 | if ((hw->mac.type >= e1000_pch2lan) && link) { |
69cfbc95 | 1423 | u16 speed, duplex; |
6cf08d1c | 1424 | |
69cfbc95 | 1425 | e1000e_get_speed_and_duplex_copper(hw, &speed, &duplex); |
79849ebc DE |
1426 | tipg_reg = er32(TIPG); |
1427 | tipg_reg &= ~E1000_TIPG_IPGT_MASK; | |
1428 | ||
69cfbc95 | 1429 | if (duplex == HALF_DUPLEX && speed == SPEED_10) { |
79849ebc DE |
1430 | tipg_reg |= 0xFF; |
1431 | /* Reduce Rx latency in analog PHY */ | |
1432 | emi_val = 0; | |
c8744f44 | 1433 | } else if (hw->mac.type >= e1000_pch_spt && |
69cfbc95 YL |
1434 | duplex == FULL_DUPLEX && speed != SPEED_1000) { |
1435 | tipg_reg |= 0xC; | |
1436 | emi_val = 1; | |
79849ebc | 1437 | } else { |
fbb9ab10 | 1438 | |
79849ebc DE |
1439 | /* Roll back the default values */ |
1440 | tipg_reg |= 0x08; | |
1441 | emi_val = 1; | |
1442 | } | |
772d05c5 | 1443 | |
79849ebc | 1444 | ew32(TIPG, tipg_reg); |
772d05c5 | 1445 | |
79849ebc DE |
1446 | ret_val = hw->phy.ops.acquire(hw); |
1447 | if (ret_val) | |
e2710dbf | 1448 | goto out; |
fbb9ab10 | 1449 | |
79849ebc DE |
1450 | if (hw->mac.type == e1000_pch2lan) |
1451 | emi_addr = I82579_RX_CONFIG; | |
1452 | else | |
1453 | emi_addr = I217_RX_CONFIG; | |
1454 | ret_val = e1000_write_emi_reg_locked(hw, emi_addr, emi_val); | |
772d05c5 | 1455 | |
c8744f44 | 1456 | if (hw->mac.type >= e1000_pch_lpt) { |
74f31299 RA |
1457 | u16 phy_reg; |
1458 | ||
1459 | e1e_rphy_locked(hw, I217_PLL_CLOCK_GATE_REG, &phy_reg); | |
1460 | phy_reg &= ~I217_PLL_CLOCK_GATE_MASK; | |
1461 | if (speed == SPEED_100 || speed == SPEED_10) | |
1462 | phy_reg |= 0x3E8; | |
1463 | else | |
1464 | phy_reg |= 0xFA; | |
1465 | e1e_wphy_locked(hw, I217_PLL_CLOCK_GATE_REG, phy_reg); | |
e5e9a2ec KHF |
1466 | |
1467 | if (speed == SPEED_1000) { | |
1468 | hw->phy.ops.read_reg_locked(hw, HV_PM_CTRL, | |
1469 | &phy_reg); | |
1470 | ||
1471 | phy_reg |= HV_PM_CTRL_K1_CLK_REQ; | |
1472 | ||
1473 | hw->phy.ops.write_reg_locked(hw, HV_PM_CTRL, | |
1474 | phy_reg); | |
1475 | } | |
74f31299 | 1476 | } |
79849ebc | 1477 | hw->phy.ops.release(hw); |
772d05c5 | 1478 | |
79849ebc | 1479 | if (ret_val) |
e2710dbf | 1480 | goto out; |
93cbfc70 | 1481 | |
c8744f44 | 1482 | if (hw->mac.type >= e1000_pch_spt) { |
93cbfc70 YL |
1483 | u16 data; |
1484 | u16 ptr_gap; | |
1485 | ||
1486 | if (speed == SPEED_1000) { | |
1487 | ret_val = hw->phy.ops.acquire(hw); | |
1488 | if (ret_val) | |
e2710dbf | 1489 | goto out; |
93cbfc70 YL |
1490 | |
1491 | ret_val = e1e_rphy_locked(hw, | |
1492 | PHY_REG(776, 20), | |
1493 | &data); | |
1494 | if (ret_val) { | |
1495 | hw->phy.ops.release(hw); | |
e2710dbf | 1496 | goto out; |
93cbfc70 YL |
1497 | } |
1498 | ||
1499 | ptr_gap = (data & (0x3FF << 2)) >> 2; | |
1500 | if (ptr_gap < 0x18) { | |
1501 | data &= ~(0x3FF << 2); | |
1502 | data |= (0x18 << 2); | |
1503 | ret_val = | |
1504 | e1e_wphy_locked(hw, | |
1505 | PHY_REG(776, 20), | |
1506 | data); | |
1507 | } | |
1508 | hw->phy.ops.release(hw); | |
1509 | if (ret_val) | |
e2710dbf | 1510 | goto out; |
c26f40da RA |
1511 | } else { |
1512 | ret_val = hw->phy.ops.acquire(hw); | |
1513 | if (ret_val) | |
e2710dbf | 1514 | goto out; |
c26f40da RA |
1515 | |
1516 | ret_val = e1e_wphy_locked(hw, | |
1517 | PHY_REG(776, 20), | |
1518 | 0xC023); | |
1519 | hw->phy.ops.release(hw); | |
1520 | if (ret_val) | |
e2710dbf | 1521 | goto out; |
c26f40da | 1522 | |
93cbfc70 YL |
1523 | } |
1524 | } | |
1525 | } | |
1526 | ||
1527 | /* I217 Packet Loss issue: | |
1528 | * ensure that FEXTNVM4 Beacon Duration is set correctly | |
1529 | * on power up. | |
1530 | * Set the Beacon Duration for I217 to 8 usec | |
1531 | */ | |
c8744f44 | 1532 | if (hw->mac.type >= e1000_pch_lpt) { |
93cbfc70 YL |
1533 | u32 mac_reg; |
1534 | ||
1535 | mac_reg = er32(FEXTNVM4); | |
1536 | mac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK; | |
1537 | mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_8USEC; | |
1538 | ew32(FEXTNVM4, mac_reg); | |
772d05c5 BA |
1539 | } |
1540 | ||
e08f626b BA |
1541 | /* Work-around I218 hang issue */ |
1542 | if ((hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPTLP_I218_LM) || | |
91a3d82f BA |
1543 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_LPTLP_I218_V) || |
1544 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_LM3) || | |
352f8ead | 1545 | (hw->adapter->pdev->device == E1000_DEV_ID_PCH_I218_V3)) { |
e08f626b BA |
1546 | ret_val = e1000_k1_workaround_lpt_lp(hw, link); |
1547 | if (ret_val) | |
e2710dbf | 1548 | goto out; |
e08f626b | 1549 | } |
c8744f44 | 1550 | if (hw->mac.type >= e1000_pch_lpt) { |
cf8fb73c BA |
1551 | /* Set platform power management values for |
1552 | * Latency Tolerance Reporting (LTR) | |
1553 | */ | |
1554 | ret_val = e1000_platform_pm_pch_lpt(hw, link); | |
1555 | if (ret_val) | |
e2710dbf | 1556 | goto out; |
cf8fb73c BA |
1557 | } |
1558 | ||
2fbe4526 BA |
1559 | /* Clear link partner's EEE ability */ |
1560 | hw->dev_spec.ich8lan.eee_lp_ability = 0; | |
1561 | ||
c8744f44 | 1562 | if (hw->mac.type >= e1000_pch_lpt) { |
79849ebc DE |
1563 | u32 fextnvm6 = er32(FEXTNVM6); |
1564 | ||
c8744f44 SN |
1565 | if (hw->mac.type == e1000_pch_spt) { |
1566 | /* FEXTNVM6 K1-off workaround - for SPT only */ | |
1567 | u32 pcieanacfg = er32(PCIEANACFG); | |
1568 | ||
1569 | if (pcieanacfg & E1000_FEXTNVM6_K1_OFF_ENABLE) | |
1570 | fextnvm6 |= E1000_FEXTNVM6_K1_OFF_ENABLE; | |
1571 | else | |
1572 | fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE; | |
1573 | } | |
79849ebc | 1574 | |
43932382 KHF |
1575 | if (hw->dev_spec.ich8lan.disable_k1_off == true) |
1576 | fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE; | |
1577 | ||
79849ebc DE |
1578 | ew32(FEXTNVM6, fextnvm6); |
1579 | } | |
1580 | ||
7d3cabbc | 1581 | if (!link) |
e2710dbf | 1582 | goto out; |
7d3cabbc | 1583 | |
1d2101a7 BA |
1584 | switch (hw->mac.type) { |
1585 | case e1000_pch2lan: | |
831bd2e6 BA |
1586 | ret_val = e1000_k1_workaround_lv(hw); |
1587 | if (ret_val) | |
5015e53a | 1588 | return ret_val; |
5463fce6 | 1589 | fallthrough; |
1d2101a7 BA |
1590 | case e1000_pchlan: |
1591 | if (hw->phy.type == e1000_phy_82578) { | |
1592 | ret_val = e1000_link_stall_workaround_hv(hw); | |
1593 | if (ret_val) | |
5015e53a | 1594 | return ret_val; |
1d2101a7 BA |
1595 | } |
1596 | ||
e921eb1a | 1597 | /* Workaround for PCHx parts in half-duplex: |
1d2101a7 BA |
1598 | * Set the number of preambles removed from the packet |
1599 | * when it is passed from the PHY to the MAC to prevent | |
1600 | * the MAC from misinterpreting the packet type. | |
1601 | */ | |
1602 | e1e_rphy(hw, HV_KMRN_FIFO_CTRLSTA, &phy_reg); | |
1603 | phy_reg &= ~HV_KMRN_FIFO_CTRLSTA_PREAMBLE_MASK; | |
1604 | ||
1605 | if ((er32(STATUS) & E1000_STATUS_FD) != E1000_STATUS_FD) | |
18dd2392 | 1606 | phy_reg |= BIT(HV_KMRN_FIFO_CTRLSTA_PREAMBLE_SHIFT); |
1d2101a7 BA |
1607 | |
1608 | e1e_wphy(hw, HV_KMRN_FIFO_CTRLSTA, phy_reg); | |
1609 | break; | |
1610 | default: | |
1611 | break; | |
831bd2e6 BA |
1612 | } |
1613 | ||
e921eb1a | 1614 | /* Check if there was DownShift, must be checked |
7d3cabbc BA |
1615 | * immediately after link-up |
1616 | */ | |
1617 | e1000e_check_downshift(hw); | |
1618 | ||
e52997f9 | 1619 | /* Enable/Disable EEE after link up */ |
a03206ed DE |
1620 | if (hw->phy.type > e1000_phy_82579) { |
1621 | ret_val = e1000_set_eee_pchlan(hw); | |
1622 | if (ret_val) | |
1623 | return ret_val; | |
1624 | } | |
e52997f9 | 1625 | |
e921eb1a | 1626 | /* If we are forcing speed/duplex, then we simply return since |
7d3cabbc BA |
1627 | * we have already determined whether we have link or not. |
1628 | */ | |
5015e53a | 1629 | if (!mac->autoneg) |
3016e0a0 | 1630 | return -E1000_ERR_CONFIG; |
7d3cabbc | 1631 | |
e921eb1a | 1632 | /* Auto-Neg is enabled. Auto Speed Detection takes care |
7d3cabbc BA |
1633 | * of MAC speed/duplex configuration. So we only need to |
1634 | * configure Collision Distance in the MAC. | |
1635 | */ | |
57cde763 | 1636 | mac->ops.config_collision_dist(hw); |
7d3cabbc | 1637 | |
e921eb1a | 1638 | /* Configure Flow Control now that Auto-Neg has completed. |
7d3cabbc BA |
1639 | * First, we need to restore the desired flow control |
1640 | * settings because we may have had to re-autoneg with a | |
1641 | * different link partner. | |
1642 | */ | |
1643 | ret_val = e1000e_config_fc_after_link_up(hw); | |
3016e0a0 | 1644 | if (ret_val) |
3bb99fe2 | 1645 | e_dbg("Error configuring flow control\n"); |
7d3cabbc | 1646 | |
3016e0a0 | 1647 | return ret_val; |
e2710dbf BP |
1648 | |
1649 | out: | |
1650 | mac->get_link_status = true; | |
1651 | return ret_val; | |
7d3cabbc BA |
1652 | } |
1653 | ||
69e3fd8c | 1654 | static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter) |
bc7f75fa AK |
1655 | { |
1656 | struct e1000_hw *hw = &adapter->hw; | |
1657 | s32 rc; | |
1658 | ||
ec34c170 | 1659 | rc = e1000_init_mac_params_ich8lan(hw); |
bc7f75fa AK |
1660 | if (rc) |
1661 | return rc; | |
1662 | ||
1663 | rc = e1000_init_nvm_params_ich8lan(hw); | |
1664 | if (rc) | |
1665 | return rc; | |
1666 | ||
d3738bb8 BA |
1667 | switch (hw->mac.type) { |
1668 | case e1000_ich8lan: | |
1669 | case e1000_ich9lan: | |
1670 | case e1000_ich10lan: | |
a4f58f54 | 1671 | rc = e1000_init_phy_params_ich8lan(hw); |
d3738bb8 BA |
1672 | break; |
1673 | case e1000_pchlan: | |
1674 | case e1000_pch2lan: | |
2fbe4526 | 1675 | case e1000_pch_lpt: |
79849ebc | 1676 | case e1000_pch_spt: |
c8744f44 | 1677 | case e1000_pch_cnp: |
fb776f5d | 1678 | case e1000_pch_tgp: |
59e46688 | 1679 | case e1000_pch_adp: |
cc23f4f0 | 1680 | case e1000_pch_mtp: |
d3738bb8 BA |
1681 | rc = e1000_init_phy_params_pchlan(hw); |
1682 | break; | |
1683 | default: | |
1684 | break; | |
1685 | } | |
bc7f75fa AK |
1686 | if (rc) |
1687 | return rc; | |
1688 | ||
e921eb1a | 1689 | /* Disable Jumbo Frame support on parts with Intel 10/100 PHY or |
23e4f061 BA |
1690 | * on parts with MACsec enabled in NVM (reflected in CTRL_EXT). |
1691 | */ | |
1692 | if ((adapter->hw.phy.type == e1000_phy_ife) || | |
1693 | ((adapter->hw.mac.type >= e1000_pch2lan) && | |
1694 | (!(er32(CTRL_EXT) & E1000_CTRL_EXT_LSECCK)))) { | |
2adc55c9 | 1695 | adapter->flags &= ~FLAG_HAS_JUMBO_FRAMES; |
8084b86d | 1696 | adapter->max_hw_frame_size = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN; |
dbf80dcb BA |
1697 | |
1698 | hw->mac.ops.blink_led = NULL; | |
2adc55c9 BA |
1699 | } |
1700 | ||
bc7f75fa | 1701 | if ((adapter->hw.mac.type == e1000_ich8lan) && |
462d5994 | 1702 | (adapter->hw.phy.type != e1000_phy_ife)) |
bc7f75fa AK |
1703 | adapter->flags |= FLAG_LSC_GIG_SPEED_DROP; |
1704 | ||
c6e7f51e BA |
1705 | /* Enable workaround for 82579 w/ ME enabled */ |
1706 | if ((adapter->hw.mac.type == e1000_pch2lan) && | |
1707 | (er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) | |
1708 | adapter->flags2 |= FLAG2_PCIM2PCI_ARBITER_WA; | |
1709 | ||
bc7f75fa AK |
1710 | return 0; |
1711 | } | |
1712 | ||
717d438d | 1713 | static DEFINE_MUTEX(nvm_mutex); |
717d438d | 1714 | |
ca15df58 BA |
1715 | /** |
1716 | * e1000_acquire_nvm_ich8lan - Acquire NVM mutex | |
1717 | * @hw: pointer to the HW structure | |
1718 | * | |
1719 | * Acquires the mutex for performing NVM operations. | |
1720 | **/ | |
8bb62869 | 1721 | static s32 e1000_acquire_nvm_ich8lan(struct e1000_hw __always_unused *hw) |
ca15df58 BA |
1722 | { |
1723 | mutex_lock(&nvm_mutex); | |
1724 | ||
1725 | return 0; | |
1726 | } | |
1727 | ||
1728 | /** | |
1729 | * e1000_release_nvm_ich8lan - Release NVM mutex | |
1730 | * @hw: pointer to the HW structure | |
1731 | * | |
1732 | * Releases the mutex used while performing NVM operations. | |
1733 | **/ | |
8bb62869 | 1734 | static void e1000_release_nvm_ich8lan(struct e1000_hw __always_unused *hw) |
ca15df58 BA |
1735 | { |
1736 | mutex_unlock(&nvm_mutex); | |
ca15df58 BA |
1737 | } |
1738 | ||
bc7f75fa AK |
1739 | /** |
1740 | * e1000_acquire_swflag_ich8lan - Acquire software control flag | |
1741 | * @hw: pointer to the HW structure | |
1742 | * | |
ca15df58 BA |
1743 | * Acquires the software control flag for performing PHY and select |
1744 | * MAC CSR accesses. | |
bc7f75fa AK |
1745 | **/ |
1746 | static s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw) | |
1747 | { | |
373a88d7 BA |
1748 | u32 extcnf_ctrl, timeout = PHY_CFG_TIMEOUT; |
1749 | s32 ret_val = 0; | |
bc7f75fa | 1750 | |
a90b412c BA |
1751 | if (test_and_set_bit(__E1000_ACCESS_SHARED_RESOURCE, |
1752 | &hw->adapter->state)) { | |
34c9ef8b | 1753 | e_dbg("contention for Phy access\n"); |
a90b412c BA |
1754 | return -E1000_ERR_PHY; |
1755 | } | |
717d438d | 1756 | |
bc7f75fa AK |
1757 | while (timeout) { |
1758 | extcnf_ctrl = er32(EXTCNF_CTRL); | |
373a88d7 BA |
1759 | if (!(extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG)) |
1760 | break; | |
bc7f75fa | 1761 | |
373a88d7 BA |
1762 | mdelay(1); |
1763 | timeout--; | |
1764 | } | |
1765 | ||
1766 | if (!timeout) { | |
a90b412c | 1767 | e_dbg("SW has already locked the resource.\n"); |
373a88d7 BA |
1768 | ret_val = -E1000_ERR_CONFIG; |
1769 | goto out; | |
1770 | } | |
1771 | ||
53ac5a88 | 1772 | timeout = SW_FLAG_TIMEOUT; |
373a88d7 BA |
1773 | |
1774 | extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; | |
1775 | ew32(EXTCNF_CTRL, extcnf_ctrl); | |
1776 | ||
1777 | while (timeout) { | |
1778 | extcnf_ctrl = er32(EXTCNF_CTRL); | |
1779 | if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) | |
1780 | break; | |
a4f58f54 | 1781 | |
bc7f75fa AK |
1782 | mdelay(1); |
1783 | timeout--; | |
1784 | } | |
1785 | ||
1786 | if (!timeout) { | |
434f1392 | 1787 | e_dbg("Failed to acquire the semaphore, FW or HW has it: FWSM=0x%8.8x EXTCNF_CTRL=0x%8.8x)\n", |
a90b412c | 1788 | er32(FWSM), extcnf_ctrl); |
2e2e8d53 BA |
1789 | extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; |
1790 | ew32(EXTCNF_CTRL, extcnf_ctrl); | |
373a88d7 BA |
1791 | ret_val = -E1000_ERR_CONFIG; |
1792 | goto out; | |
bc7f75fa AK |
1793 | } |
1794 | ||
373a88d7 BA |
1795 | out: |
1796 | if (ret_val) | |
a90b412c | 1797 | clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state); |
373a88d7 BA |
1798 | |
1799 | return ret_val; | |
bc7f75fa AK |
1800 | } |
1801 | ||
1802 | /** | |
1803 | * e1000_release_swflag_ich8lan - Release software control flag | |
1804 | * @hw: pointer to the HW structure | |
1805 | * | |
ca15df58 BA |
1806 | * Releases the software control flag for performing PHY and select |
1807 | * MAC CSR accesses. | |
bc7f75fa AK |
1808 | **/ |
1809 | static void e1000_release_swflag_ich8lan(struct e1000_hw *hw) | |
1810 | { | |
1811 | u32 extcnf_ctrl; | |
1812 | ||
1813 | extcnf_ctrl = er32(EXTCNF_CTRL); | |
c5caf482 BA |
1814 | |
1815 | if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) { | |
1816 | extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; | |
1817 | ew32(EXTCNF_CTRL, extcnf_ctrl); | |
1818 | } else { | |
1819 | e_dbg("Semaphore unexpectedly released by sw/fw/hw\n"); | |
1820 | } | |
717d438d | 1821 | |
a90b412c | 1822 | clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state); |
bc7f75fa AK |
1823 | } |
1824 | ||
4662e82b BA |
1825 | /** |
1826 | * e1000_check_mng_mode_ich8lan - Checks management mode | |
1827 | * @hw: pointer to the HW structure | |
1828 | * | |
eb7700dc | 1829 | * This checks if the adapter has any manageability enabled. |
4662e82b BA |
1830 | * This is a function pointer entry point only called by read/write |
1831 | * routines for the PHY and NVM parts. | |
1832 | **/ | |
1833 | static bool e1000_check_mng_mode_ich8lan(struct e1000_hw *hw) | |
1834 | { | |
a708dd88 BA |
1835 | u32 fwsm; |
1836 | ||
1837 | fwsm = er32(FWSM); | |
261a7d12 | 1838 | return (fwsm & E1000_ICH_FWSM_FW_VALID) && |
f0ff4398 | 1839 | ((fwsm & E1000_FWSM_MODE_MASK) == |
261a7d12 | 1840 | (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT)); |
eb7700dc | 1841 | } |
4662e82b | 1842 | |
eb7700dc BA |
1843 | /** |
1844 | * e1000_check_mng_mode_pchlan - Checks management mode | |
1845 | * @hw: pointer to the HW structure | |
1846 | * | |
1847 | * This checks if the adapter has iAMT enabled. | |
1848 | * This is a function pointer entry point only called by read/write | |
1849 | * routines for the PHY and NVM parts. | |
1850 | **/ | |
1851 | static bool e1000_check_mng_mode_pchlan(struct e1000_hw *hw) | |
1852 | { | |
1853 | u32 fwsm; | |
1854 | ||
1855 | fwsm = er32(FWSM); | |
1856 | return (fwsm & E1000_ICH_FWSM_FW_VALID) && | |
f0ff4398 | 1857 | (fwsm & (E1000_ICH_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT)); |
4662e82b BA |
1858 | } |
1859 | ||
69e1e019 BA |
1860 | /** |
1861 | * e1000_rar_set_pch2lan - Set receive address register | |
1862 | * @hw: pointer to the HW structure | |
1863 | * @addr: pointer to the receive address | |
1864 | * @index: receive address array register | |
1865 | * | |
1866 | * Sets the receive address array register at index to the address passed | |
1867 | * in by addr. For 82579, RAR[0] is the base address register that is to | |
1868 | * contain the MAC address but RAR[1-6] are reserved for manageability (ME). | |
1869 | * Use SHRA[0-3] in place of those reserved for ME. | |
1870 | **/ | |
b3e5bf1f | 1871 | static int e1000_rar_set_pch2lan(struct e1000_hw *hw, u8 *addr, u32 index) |
69e1e019 BA |
1872 | { |
1873 | u32 rar_low, rar_high; | |
1874 | ||
e921eb1a | 1875 | /* HW expects these in little endian so we reverse the byte order |
69e1e019 BA |
1876 | * from network order (big endian) to little endian |
1877 | */ | |
1878 | rar_low = ((u32)addr[0] | | |
1879 | ((u32)addr[1] << 8) | | |
1880 | ((u32)addr[2] << 16) | ((u32)addr[3] << 24)); | |
1881 | ||
1882 | rar_high = ((u32)addr[4] | ((u32)addr[5] << 8)); | |
1883 | ||
1884 | /* If MAC address zero, no need to set the AV bit */ | |
1885 | if (rar_low || rar_high) | |
1886 | rar_high |= E1000_RAH_AV; | |
1887 | ||
1888 | if (index == 0) { | |
1889 | ew32(RAL(index), rar_low); | |
1890 | e1e_flush(); | |
1891 | ew32(RAH(index), rar_high); | |
1892 | e1e_flush(); | |
b3e5bf1f | 1893 | return 0; |
69e1e019 BA |
1894 | } |
1895 | ||
c3a0dce3 DE |
1896 | /* RAR[1-6] are owned by manageability. Skip those and program the |
1897 | * next address into the SHRA register array. | |
1898 | */ | |
96dee024 | 1899 | if (index < (u32)(hw->mac.rar_entry_count)) { |
69e1e019 BA |
1900 | s32 ret_val; |
1901 | ||
1902 | ret_val = e1000_acquire_swflag_ich8lan(hw); | |
1903 | if (ret_val) | |
1904 | goto out; | |
1905 | ||
1906 | ew32(SHRAL(index - 1), rar_low); | |
1907 | e1e_flush(); | |
1908 | ew32(SHRAH(index - 1), rar_high); | |
1909 | e1e_flush(); | |
1910 | ||
1911 | e1000_release_swflag_ich8lan(hw); | |
1912 | ||
1913 | /* verify the register updates */ | |
1914 | if ((er32(SHRAL(index - 1)) == rar_low) && | |
1915 | (er32(SHRAH(index - 1)) == rar_high)) | |
b3e5bf1f | 1916 | return 0; |
69e1e019 BA |
1917 | |
1918 | e_dbg("SHRA[%d] might be locked by ME - FWSM=0x%8.8x\n", | |
1919 | (index - 1), er32(FWSM)); | |
1920 | } | |
1921 | ||
1922 | out: | |
1923 | e_dbg("Failed to write receive address at index %d\n", index); | |
b3e5bf1f DE |
1924 | return -E1000_ERR_CONFIG; |
1925 | } | |
1926 | ||
1927 | /** | |
1928 | * e1000_rar_get_count_pch_lpt - Get the number of available SHRA | |
1929 | * @hw: pointer to the HW structure | |
1930 | * | |
1931 | * Get the number of available receive registers that the Host can | |
1932 | * program. SHRA[0-10] are the shared receive address registers | |
1933 | * that are shared between the Host and manageability engine (ME). | |
1934 | * ME can reserve any number of addresses and the host needs to be | |
1935 | * able to tell how many available registers it has access to. | |
1936 | **/ | |
1937 | static u32 e1000_rar_get_count_pch_lpt(struct e1000_hw *hw) | |
1938 | { | |
1939 | u32 wlock_mac; | |
1940 | u32 num_entries; | |
1941 | ||
1942 | wlock_mac = er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK; | |
1943 | wlock_mac >>= E1000_FWSM_WLOCK_MAC_SHIFT; | |
1944 | ||
1945 | switch (wlock_mac) { | |
1946 | case 0: | |
1947 | /* All SHRA[0..10] and RAR[0] available */ | |
1948 | num_entries = hw->mac.rar_entry_count; | |
1949 | break; | |
1950 | case 1: | |
1951 | /* Only RAR[0] available */ | |
1952 | num_entries = 1; | |
1953 | break; | |
1954 | default: | |
1955 | /* SHRA[0..(wlock_mac - 1)] available + RAR[0] */ | |
1956 | num_entries = wlock_mac + 1; | |
1957 | break; | |
1958 | } | |
1959 | ||
1960 | return num_entries; | |
69e1e019 BA |
1961 | } |
1962 | ||
2fbe4526 BA |
1963 | /** |
1964 | * e1000_rar_set_pch_lpt - Set receive address registers | |
1965 | * @hw: pointer to the HW structure | |
1966 | * @addr: pointer to the receive address | |
1967 | * @index: receive address array register | |
1968 | * | |
1969 | * Sets the receive address register array at index to the address passed | |
1970 | * in by addr. For LPT, RAR[0] is the base address register that is to | |
1971 | * contain the MAC address. SHRA[0-10] are the shared receive address | |
1972 | * registers that are shared between the Host and manageability engine (ME). | |
1973 | **/ | |
b3e5bf1f | 1974 | static int e1000_rar_set_pch_lpt(struct e1000_hw *hw, u8 *addr, u32 index) |
2fbe4526 BA |
1975 | { |
1976 | u32 rar_low, rar_high; | |
1977 | u32 wlock_mac; | |
1978 | ||
e921eb1a | 1979 | /* HW expects these in little endian so we reverse the byte order |
2fbe4526 BA |
1980 | * from network order (big endian) to little endian |
1981 | */ | |
1982 | rar_low = ((u32)addr[0] | ((u32)addr[1] << 8) | | |
1983 | ((u32)addr[2] << 16) | ((u32)addr[3] << 24)); | |
1984 | ||
1985 | rar_high = ((u32)addr[4] | ((u32)addr[5] << 8)); | |
1986 | ||
1987 | /* If MAC address zero, no need to set the AV bit */ | |
1988 | if (rar_low || rar_high) | |
1989 | rar_high |= E1000_RAH_AV; | |
1990 | ||
1991 | if (index == 0) { | |
1992 | ew32(RAL(index), rar_low); | |
1993 | e1e_flush(); | |
1994 | ew32(RAH(index), rar_high); | |
1995 | e1e_flush(); | |
b3e5bf1f | 1996 | return 0; |
2fbe4526 BA |
1997 | } |
1998 | ||
e921eb1a | 1999 | /* The manageability engine (ME) can lock certain SHRAR registers that |
2fbe4526 BA |
2000 | * it is using - those registers are unavailable for use. |
2001 | */ | |
2002 | if (index < hw->mac.rar_entry_count) { | |
2003 | wlock_mac = er32(FWSM) & E1000_FWSM_WLOCK_MAC_MASK; | |
2004 | wlock_mac >>= E1000_FWSM_WLOCK_MAC_SHIFT; | |
2005 | ||
2006 | /* Check if all SHRAR registers are locked */ | |
2007 | if (wlock_mac == 1) | |
2008 | goto out; | |
2009 | ||
2010 | if ((wlock_mac == 0) || (index <= wlock_mac)) { | |
2011 | s32 ret_val; | |
2012 | ||
2013 | ret_val = e1000_acquire_swflag_ich8lan(hw); | |
2014 | ||
2015 | if (ret_val) | |
2016 | goto out; | |
2017 | ||
2018 | ew32(SHRAL_PCH_LPT(index - 1), rar_low); | |
2019 | e1e_flush(); | |
2020 | ew32(SHRAH_PCH_LPT(index - 1), rar_high); | |
2021 | e1e_flush(); | |
2022 | ||
2023 | e1000_release_swflag_ich8lan(hw); | |
2024 | ||
2025 | /* verify the register updates */ | |
2026 | if ((er32(SHRAL_PCH_LPT(index - 1)) == rar_low) && | |
2027 | (er32(SHRAH_PCH_LPT(index - 1)) == rar_high)) | |
b3e5bf1f | 2028 | return 0; |
2fbe4526 BA |
2029 | } |
2030 | } | |
2031 | ||
2032 | out: | |
2033 | e_dbg("Failed to write receive address at index %d\n", index); | |
b3e5bf1f | 2034 | return -E1000_ERR_CONFIG; |
2fbe4526 BA |
2035 | } |
2036 | ||
bc7f75fa AK |
2037 | /** |
2038 | * e1000_check_reset_block_ich8lan - Check if PHY reset is blocked | |
2039 | * @hw: pointer to the HW structure | |
2040 | * | |
2041 | * Checks if firmware is blocking the reset of the PHY. | |
2042 | * This is a function pointer entry point only called by | |
2043 | * reset routines. | |
2044 | **/ | |
2045 | static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw) | |
2046 | { | |
f7235ef6 DE |
2047 | bool blocked = false; |
2048 | int i = 0; | |
bc7f75fa | 2049 | |
f7235ef6 | 2050 | while ((blocked = !(er32(FWSM) & E1000_ICH_FWSM_RSPCIPHY)) && |
d17c7868 | 2051 | (i++ < 30)) |
ab6973ae | 2052 | usleep_range(10000, 11000); |
f7235ef6 | 2053 | return blocked ? E1000_BLK_PHY_RESET : 0; |
bc7f75fa AK |
2054 | } |
2055 | ||
8395ae83 BA |
2056 | /** |
2057 | * e1000_write_smbus_addr - Write SMBus address to PHY needed during Sx states | |
2058 | * @hw: pointer to the HW structure | |
2059 | * | |
2060 | * Assumes semaphore already acquired. | |
2061 | * | |
2062 | **/ | |
2063 | static s32 e1000_write_smbus_addr(struct e1000_hw *hw) | |
2064 | { | |
2065 | u16 phy_data; | |
2066 | u32 strap = er32(STRAP); | |
2fbe4526 BA |
2067 | u32 freq = (strap & E1000_STRAP_SMT_FREQ_MASK) >> |
2068 | E1000_STRAP_SMT_FREQ_SHIFT; | |
70806a7f | 2069 | s32 ret_val; |
8395ae83 BA |
2070 | |
2071 | strap &= E1000_STRAP_SMBUS_ADDRESS_MASK; | |
2072 | ||
2073 | ret_val = e1000_read_phy_reg_hv_locked(hw, HV_SMB_ADDR, &phy_data); | |
2074 | if (ret_val) | |
5015e53a | 2075 | return ret_val; |
8395ae83 BA |
2076 | |
2077 | phy_data &= ~HV_SMB_ADDR_MASK; | |
2078 | phy_data |= (strap >> E1000_STRAP_SMBUS_ADDRESS_SHIFT); | |
2079 | phy_data |= HV_SMB_ADDR_PEC_EN | HV_SMB_ADDR_VALID; | |
8395ae83 | 2080 | |
2fbe4526 BA |
2081 | if (hw->phy.type == e1000_phy_i217) { |
2082 | /* Restore SMBus frequency */ | |
2083 | if (freq--) { | |
2084 | phy_data &= ~HV_SMB_ADDR_FREQ_MASK; | |
18dd2392 | 2085 | phy_data |= (freq & BIT(0)) << |
2fbe4526 | 2086 | HV_SMB_ADDR_FREQ_LOW_SHIFT; |
18dd2392 | 2087 | phy_data |= (freq & BIT(1)) << |
2fbe4526 BA |
2088 | (HV_SMB_ADDR_FREQ_HIGH_SHIFT - 1); |
2089 | } else { | |
2090 | e_dbg("Unsupported SMB frequency in PHY\n"); | |
2091 | } | |
2092 | } | |
2093 | ||
5015e53a | 2094 | return e1000_write_phy_reg_hv_locked(hw, HV_SMB_ADDR, phy_data); |
8395ae83 BA |
2095 | } |
2096 | ||
f523d211 BA |
2097 | /** |
2098 | * e1000_sw_lcd_config_ich8lan - SW-based LCD Configuration | |
2099 | * @hw: pointer to the HW structure | |
2100 | * | |
2101 | * SW should configure the LCD from the NVM extended configuration region | |
2102 | * as a workaround for certain parts. | |
2103 | **/ | |
2104 | static s32 e1000_sw_lcd_config_ich8lan(struct e1000_hw *hw) | |
2105 | { | |
2106 | struct e1000_phy_info *phy = &hw->phy; | |
2107 | u32 i, data, cnf_size, cnf_base_addr, sw_cfg_mask; | |
8b802a7e | 2108 | s32 ret_val = 0; |
f523d211 BA |
2109 | u16 word_addr, reg_data, reg_addr, phy_page = 0; |
2110 | ||
e921eb1a | 2111 | /* Initialize the PHY from the NVM on ICH platforms. This |
f523d211 BA |
2112 | * is needed due to an issue where the NVM configuration is |
2113 | * not properly autoloaded after power transitions. | |
2114 | * Therefore, after each PHY reset, we will load the | |
2115 | * configuration data out of the NVM manually. | |
2116 | */ | |
3f0c16e8 BA |
2117 | switch (hw->mac.type) { |
2118 | case e1000_ich8lan: | |
2119 | if (phy->type != e1000_phy_igp_3) | |
2120 | return ret_val; | |
2121 | ||
5f3eed6f BA |
2122 | if ((hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_AMT) || |
2123 | (hw->adapter->pdev->device == E1000_DEV_ID_ICH8_IGP_C)) { | |
3f0c16e8 BA |
2124 | sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG; |
2125 | break; | |
2126 | } | |
5463fce6 | 2127 | fallthrough; |
3f0c16e8 | 2128 | case e1000_pchlan: |
d3738bb8 | 2129 | case e1000_pch2lan: |
2fbe4526 | 2130 | case e1000_pch_lpt: |
79849ebc | 2131 | case e1000_pch_spt: |
c8744f44 | 2132 | case e1000_pch_cnp: |
fb776f5d | 2133 | case e1000_pch_tgp: |
59e46688 | 2134 | case e1000_pch_adp: |
cc23f4f0 | 2135 | case e1000_pch_mtp: |
8b802a7e | 2136 | sw_cfg_mask = E1000_FEXTNVM_SW_CONFIG_ICH8M; |
3f0c16e8 BA |
2137 | break; |
2138 | default: | |
2139 | return ret_val; | |
2140 | } | |
2141 | ||
2142 | ret_val = hw->phy.ops.acquire(hw); | |
2143 | if (ret_val) | |
2144 | return ret_val; | |
8b802a7e BA |
2145 | |
2146 | data = er32(FEXTNVM); | |
2147 | if (!(data & sw_cfg_mask)) | |
75ce1532 | 2148 | goto release; |
f523d211 | 2149 | |
e921eb1a | 2150 | /* Make sure HW does not configure LCD from PHY |
8b802a7e BA |
2151 | * extended configuration before SW configuration |
2152 | */ | |
2153 | data = er32(EXTCNF_CTRL); | |
2fbe4526 BA |
2154 | if ((hw->mac.type < e1000_pch2lan) && |
2155 | (data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE)) | |
2156 | goto release; | |
8b802a7e BA |
2157 | |
2158 | cnf_size = er32(EXTCNF_SIZE); | |
2159 | cnf_size &= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_MASK; | |
2160 | cnf_size >>= E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH_SHIFT; | |
2161 | if (!cnf_size) | |
75ce1532 | 2162 | goto release; |
8b802a7e BA |
2163 | |
2164 | cnf_base_addr = data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER_MASK; | |
2165 | cnf_base_addr >>= E1000_EXTCNF_CTRL_EXT_CNF_POINTER_SHIFT; | |
2166 | ||
2fbe4526 BA |
2167 | if (((hw->mac.type == e1000_pchlan) && |
2168 | !(data & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE)) || | |
2169 | (hw->mac.type > e1000_pchlan)) { | |
e921eb1a | 2170 | /* HW configures the SMBus address and LEDs when the |
8b802a7e BA |
2171 | * OEM and LCD Write Enable bits are set in the NVM. |
2172 | * When both NVM bits are cleared, SW will configure | |
2173 | * them instead. | |
f523d211 | 2174 | */ |
8395ae83 | 2175 | ret_val = e1000_write_smbus_addr(hw); |
8b802a7e | 2176 | if (ret_val) |
75ce1532 | 2177 | goto release; |
f523d211 | 2178 | |
8b802a7e BA |
2179 | data = er32(LEDCTL); |
2180 | ret_val = e1000_write_phy_reg_hv_locked(hw, HV_LED_CONFIG, | |
2181 | (u16)data); | |
2182 | if (ret_val) | |
75ce1532 | 2183 | goto release; |
8b802a7e | 2184 | } |
f523d211 | 2185 | |
8b802a7e BA |
2186 | /* Configure LCD from extended configuration region. */ |
2187 | ||
2188 | /* cnf_base_addr is in DWORD */ | |
2189 | word_addr = (u16)(cnf_base_addr << 1); | |
2190 | ||
2191 | for (i = 0; i < cnf_size; i++) { | |
e5fe2541 | 2192 | ret_val = e1000_read_nvm(hw, (word_addr + i * 2), 1, ®_data); |
8b802a7e | 2193 | if (ret_val) |
75ce1532 | 2194 | goto release; |
8b802a7e BA |
2195 | |
2196 | ret_val = e1000_read_nvm(hw, (word_addr + i * 2 + 1), | |
2197 | 1, ®_addr); | |
2198 | if (ret_val) | |
75ce1532 | 2199 | goto release; |
8b802a7e BA |
2200 | |
2201 | /* Save off the PHY page for future writes. */ | |
2202 | if (reg_addr == IGP01E1000_PHY_PAGE_SELECT) { | |
2203 | phy_page = reg_data; | |
2204 | continue; | |
f523d211 | 2205 | } |
8b802a7e BA |
2206 | |
2207 | reg_addr &= PHY_REG_MASK; | |
2208 | reg_addr |= phy_page; | |
2209 | ||
f1430d69 | 2210 | ret_val = e1e_wphy_locked(hw, (u32)reg_addr, reg_data); |
8b802a7e | 2211 | if (ret_val) |
75ce1532 | 2212 | goto release; |
f523d211 BA |
2213 | } |
2214 | ||
75ce1532 | 2215 | release: |
94d8186a | 2216 | hw->phy.ops.release(hw); |
f523d211 BA |
2217 | return ret_val; |
2218 | } | |
2219 | ||
1d5846b9 BA |
2220 | /** |
2221 | * e1000_k1_gig_workaround_hv - K1 Si workaround | |
2222 | * @hw: pointer to the HW structure | |
2223 | * @link: link up bool flag | |
2224 | * | |
2225 | * If K1 is enabled for 1Gbps, the MAC might stall when transitioning | |
2226 | * from a lower speed. This workaround disables K1 whenever link is at 1Gig | |
2227 | * If link is down, the function will restore the default K1 setting located | |
2228 | * in the NVM. | |
2229 | **/ | |
2230 | static s32 e1000_k1_gig_workaround_hv(struct e1000_hw *hw, bool link) | |
2231 | { | |
2232 | s32 ret_val = 0; | |
2233 | u16 status_reg = 0; | |
2234 | bool k1_enable = hw->dev_spec.ich8lan.nvm_k1_enabled; | |
2235 | ||
2236 | if (hw->mac.type != e1000_pchlan) | |
5015e53a | 2237 | return 0; |
1d5846b9 BA |
2238 | |
2239 | /* Wrap the whole flow with the sw flag */ | |
94d8186a | 2240 | ret_val = hw->phy.ops.acquire(hw); |
1d5846b9 | 2241 | if (ret_val) |
5015e53a | 2242 | return ret_val; |
1d5846b9 BA |
2243 | |
2244 | /* Disable K1 when link is 1Gbps, otherwise use the NVM setting */ | |
2245 | if (link) { | |
2246 | if (hw->phy.type == e1000_phy_82578) { | |
f1430d69 BA |
2247 | ret_val = e1e_rphy_locked(hw, BM_CS_STATUS, |
2248 | &status_reg); | |
1d5846b9 BA |
2249 | if (ret_val) |
2250 | goto release; | |
2251 | ||
f0ff4398 BA |
2252 | status_reg &= (BM_CS_STATUS_LINK_UP | |
2253 | BM_CS_STATUS_RESOLVED | | |
2254 | BM_CS_STATUS_SPEED_MASK); | |
1d5846b9 BA |
2255 | |
2256 | if (status_reg == (BM_CS_STATUS_LINK_UP | | |
f0ff4398 BA |
2257 | BM_CS_STATUS_RESOLVED | |
2258 | BM_CS_STATUS_SPEED_1000)) | |
1d5846b9 BA |
2259 | k1_enable = false; |
2260 | } | |
2261 | ||
2262 | if (hw->phy.type == e1000_phy_82577) { | |
f1430d69 | 2263 | ret_val = e1e_rphy_locked(hw, HV_M_STATUS, &status_reg); |
1d5846b9 BA |
2264 | if (ret_val) |
2265 | goto release; | |
2266 | ||
f0ff4398 BA |
2267 | status_reg &= (HV_M_STATUS_LINK_UP | |
2268 | HV_M_STATUS_AUTONEG_COMPLETE | | |
2269 | HV_M_STATUS_SPEED_MASK); | |
1d5846b9 BA |
2270 | |
2271 | if (status_reg == (HV_M_STATUS_LINK_UP | | |
f0ff4398 BA |
2272 | HV_M_STATUS_AUTONEG_COMPLETE | |
2273 | HV_M_STATUS_SPEED_1000)) | |
1d5846b9 BA |
2274 | k1_enable = false; |
2275 | } | |
2276 | ||
2277 | /* Link stall fix for link up */ | |
f1430d69 | 2278 | ret_val = e1e_wphy_locked(hw, PHY_REG(770, 19), 0x0100); |
1d5846b9 BA |
2279 | if (ret_val) |
2280 | goto release; | |
2281 | ||
2282 | } else { | |
2283 | /* Link stall fix for link down */ | |
f1430d69 | 2284 | ret_val = e1e_wphy_locked(hw, PHY_REG(770, 19), 0x4100); |
1d5846b9 BA |
2285 | if (ret_val) |
2286 | goto release; | |
2287 | } | |
2288 | ||
2289 | ret_val = e1000_configure_k1_ich8lan(hw, k1_enable); | |
2290 | ||
2291 | release: | |
94d8186a | 2292 | hw->phy.ops.release(hw); |
5015e53a | 2293 | |
1d5846b9 BA |
2294 | return ret_val; |
2295 | } | |
2296 | ||
2297 | /** | |
2298 | * e1000_configure_k1_ich8lan - Configure K1 power state | |
2299 | * @hw: pointer to the HW structure | |
b50f7bca | 2300 | * @k1_enable: K1 state to configure |
1d5846b9 BA |
2301 | * |
2302 | * Configure the K1 power state based on the provided parameter. | |
2303 | * Assumes semaphore already acquired. | |
2304 | * | |
2305 | * Success returns 0, Failure returns -E1000_ERR_PHY (-2) | |
2306 | **/ | |
bb436b20 | 2307 | s32 e1000_configure_k1_ich8lan(struct e1000_hw *hw, bool k1_enable) |
1d5846b9 | 2308 | { |
70806a7f | 2309 | s32 ret_val; |
1d5846b9 BA |
2310 | u32 ctrl_reg = 0; |
2311 | u32 ctrl_ext = 0; | |
2312 | u32 reg = 0; | |
2313 | u16 kmrn_reg = 0; | |
2314 | ||
3d3a1676 BA |
2315 | ret_val = e1000e_read_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG, |
2316 | &kmrn_reg); | |
1d5846b9 | 2317 | if (ret_val) |
5015e53a | 2318 | return ret_val; |
1d5846b9 BA |
2319 | |
2320 | if (k1_enable) | |
2321 | kmrn_reg |= E1000_KMRNCTRLSTA_K1_ENABLE; | |
2322 | else | |
2323 | kmrn_reg &= ~E1000_KMRNCTRLSTA_K1_ENABLE; | |
2324 | ||
3d3a1676 BA |
2325 | ret_val = e1000e_write_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_K1_CONFIG, |
2326 | kmrn_reg); | |
1d5846b9 | 2327 | if (ret_val) |
5015e53a | 2328 | return ret_val; |
1d5846b9 | 2329 | |
ce43a216 | 2330 | usleep_range(20, 40); |
1d5846b9 BA |
2331 | ctrl_ext = er32(CTRL_EXT); |
2332 | ctrl_reg = er32(CTRL); | |
2333 | ||
2334 | reg = ctrl_reg & ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); | |
2335 | reg |= E1000_CTRL_FRCSPD; | |
2336 | ew32(CTRL, reg); | |
2337 | ||
2338 | ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_SPD_BYPS); | |
945a5151 | 2339 | e1e_flush(); |
ce43a216 | 2340 | usleep_range(20, 40); |
1d5846b9 BA |
2341 | ew32(CTRL, ctrl_reg); |
2342 | ew32(CTRL_EXT, ctrl_ext); | |
945a5151 | 2343 | e1e_flush(); |
ce43a216 | 2344 | usleep_range(20, 40); |
1d5846b9 | 2345 | |
5015e53a | 2346 | return 0; |
1d5846b9 BA |
2347 | } |
2348 | ||
f523d211 BA |
2349 | /** |
2350 | * e1000_oem_bits_config_ich8lan - SW-based LCD Configuration | |
2351 | * @hw: pointer to the HW structure | |
2352 | * @d0_state: boolean if entering d0 or d3 device state | |
2353 | * | |
2354 | * SW will configure Gbe Disable and LPLU based on the NVM. The four bits are | |
2355 | * collectively called OEM bits. The OEM Write Enable bit and SW Config bit | |
2356 | * in NVM determines whether HW should configure LPLU and Gbe Disable. | |
2357 | **/ | |
2358 | static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state) | |
2359 | { | |
2360 | s32 ret_val = 0; | |
2361 | u32 mac_reg; | |
2362 | u16 oem_reg; | |
2363 | ||
2fbe4526 | 2364 | if (hw->mac.type < e1000_pchlan) |
f523d211 BA |
2365 | return ret_val; |
2366 | ||
94d8186a | 2367 | ret_val = hw->phy.ops.acquire(hw); |
f523d211 BA |
2368 | if (ret_val) |
2369 | return ret_val; | |
2370 | ||
2fbe4526 | 2371 | if (hw->mac.type == e1000_pchlan) { |
d3738bb8 BA |
2372 | mac_reg = er32(EXTCNF_CTRL); |
2373 | if (mac_reg & E1000_EXTCNF_CTRL_OEM_WRITE_ENABLE) | |
75ce1532 | 2374 | goto release; |
d3738bb8 | 2375 | } |
f523d211 BA |
2376 | |
2377 | mac_reg = er32(FEXTNVM); | |
2378 | if (!(mac_reg & E1000_FEXTNVM_SW_CONFIG_ICH8M)) | |
75ce1532 | 2379 | goto release; |
f523d211 BA |
2380 | |
2381 | mac_reg = er32(PHY_CTRL); | |
2382 | ||
f1430d69 | 2383 | ret_val = e1e_rphy_locked(hw, HV_OEM_BITS, &oem_reg); |
f523d211 | 2384 | if (ret_val) |
75ce1532 | 2385 | goto release; |
f523d211 BA |
2386 | |
2387 | oem_reg &= ~(HV_OEM_BITS_GBE_DIS | HV_OEM_BITS_LPLU); | |
2388 | ||
2389 | if (d0_state) { | |
2390 | if (mac_reg & E1000_PHY_CTRL_GBE_DISABLE) | |
2391 | oem_reg |= HV_OEM_BITS_GBE_DIS; | |
2392 | ||
2393 | if (mac_reg & E1000_PHY_CTRL_D0A_LPLU) | |
2394 | oem_reg |= HV_OEM_BITS_LPLU; | |
2395 | } else { | |
03299e46 BA |
2396 | if (mac_reg & (E1000_PHY_CTRL_GBE_DISABLE | |
2397 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE)) | |
f523d211 BA |
2398 | oem_reg |= HV_OEM_BITS_GBE_DIS; |
2399 | ||
03299e46 BA |
2400 | if (mac_reg & (E1000_PHY_CTRL_D0A_LPLU | |
2401 | E1000_PHY_CTRL_NOND0A_LPLU)) | |
f523d211 BA |
2402 | oem_reg |= HV_OEM_BITS_LPLU; |
2403 | } | |
03299e46 | 2404 | |
92fe1733 BA |
2405 | /* Set Restart auto-neg to activate the bits */ |
2406 | if ((d0_state || (hw->mac.type != e1000_pchlan)) && | |
2407 | !hw->phy.ops.check_reset_block(hw)) | |
2408 | oem_reg |= HV_OEM_BITS_RESTART_AN; | |
2409 | ||
f1430d69 | 2410 | ret_val = e1e_wphy_locked(hw, HV_OEM_BITS, oem_reg); |
f523d211 | 2411 | |
75ce1532 | 2412 | release: |
94d8186a | 2413 | hw->phy.ops.release(hw); |
f523d211 BA |
2414 | |
2415 | return ret_val; | |
2416 | } | |
2417 | ||
fddaa1af BA |
2418 | /** |
2419 | * e1000_set_mdio_slow_mode_hv - Set slow MDIO access mode | |
2420 | * @hw: pointer to the HW structure | |
2421 | **/ | |
2422 | static s32 e1000_set_mdio_slow_mode_hv(struct e1000_hw *hw) | |
2423 | { | |
2424 | s32 ret_val; | |
2425 | u16 data; | |
2426 | ||
2427 | ret_val = e1e_rphy(hw, HV_KMRN_MODE_CTRL, &data); | |
2428 | if (ret_val) | |
2429 | return ret_val; | |
2430 | ||
2431 | data |= HV_KMRN_MDIO_SLOW; | |
2432 | ||
2433 | ret_val = e1e_wphy(hw, HV_KMRN_MODE_CTRL, data); | |
2434 | ||
2435 | return ret_val; | |
2436 | } | |
2437 | ||
a4f58f54 | 2438 | /** |
b50f7bca JB |
2439 | * e1000_hv_phy_workarounds_ich8lan - apply PHY workarounds |
2440 | * @hw: pointer to the HW structure | |
2441 | * | |
2442 | * A series of PHY workarounds to be done after every PHY reset. | |
a4f58f54 BA |
2443 | **/ |
2444 | static s32 e1000_hv_phy_workarounds_ich8lan(struct e1000_hw *hw) | |
2445 | { | |
2446 | s32 ret_val = 0; | |
baf86c9d | 2447 | u16 phy_data; |
a4f58f54 BA |
2448 | |
2449 | if (hw->mac.type != e1000_pchlan) | |
5015e53a | 2450 | return 0; |
a4f58f54 | 2451 | |
fddaa1af BA |
2452 | /* Set MDIO slow mode before any other MDIO access */ |
2453 | if (hw->phy.type == e1000_phy_82577) { | |
2454 | ret_val = e1000_set_mdio_slow_mode_hv(hw); | |
2455 | if (ret_val) | |
5015e53a | 2456 | return ret_val; |
fddaa1af BA |
2457 | } |
2458 | ||
a4f58f54 BA |
2459 | if (((hw->phy.type == e1000_phy_82577) && |
2460 | ((hw->phy.revision == 1) || (hw->phy.revision == 2))) || | |
2461 | ((hw->phy.type == e1000_phy_82578) && (hw->phy.revision == 1))) { | |
2462 | /* Disable generation of early preamble */ | |
2463 | ret_val = e1e_wphy(hw, PHY_REG(769, 25), 0x4431); | |
2464 | if (ret_val) | |
2465 | return ret_val; | |
2466 | ||
2467 | /* Preamble tuning for SSC */ | |
1d2101a7 | 2468 | ret_val = e1e_wphy(hw, HV_KMRN_FIFO_CTRLSTA, 0xA204); |
a4f58f54 BA |
2469 | if (ret_val) |
2470 | return ret_val; | |
2471 | } | |
2472 | ||
2473 | if (hw->phy.type == e1000_phy_82578) { | |
e921eb1a | 2474 | /* Return registers to default by doing a soft reset then |
a4f58f54 BA |
2475 | * writing 0x3140 to the control register. |
2476 | */ | |
2477 | if (hw->phy.revision < 2) { | |
2478 | e1000e_phy_sw_reset(hw); | |
c2ade1a4 | 2479 | ret_val = e1e_wphy(hw, MII_BMCR, 0x3140); |
d75372a2 GS |
2480 | if (ret_val) |
2481 | return ret_val; | |
a4f58f54 BA |
2482 | } |
2483 | } | |
2484 | ||
2485 | /* Select page 0 */ | |
94d8186a | 2486 | ret_val = hw->phy.ops.acquire(hw); |
a4f58f54 BA |
2487 | if (ret_val) |
2488 | return ret_val; | |
1d5846b9 | 2489 | |
a4f58f54 | 2490 | hw->phy.addr = 1; |
1d5846b9 | 2491 | ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, 0); |
baf86c9d | 2492 | hw->phy.ops.release(hw); |
1d5846b9 | 2493 | if (ret_val) |
5015e53a | 2494 | return ret_val; |
a4f58f54 | 2495 | |
e921eb1a | 2496 | /* Configure the K1 Si workaround during phy reset assuming there is |
1d5846b9 BA |
2497 | * link so that it disables K1 if link is in 1Gbps. |
2498 | */ | |
2499 | ret_val = e1000_k1_gig_workaround_hv(hw, true); | |
baf86c9d | 2500 | if (ret_val) |
5015e53a | 2501 | return ret_val; |
1d5846b9 | 2502 | |
baf86c9d BA |
2503 | /* Workaround for link disconnects on a busy hub in half duplex */ |
2504 | ret_val = hw->phy.ops.acquire(hw); | |
2505 | if (ret_val) | |
5015e53a | 2506 | return ret_val; |
f1430d69 | 2507 | ret_val = e1e_rphy_locked(hw, BM_PORT_GEN_CFG, &phy_data); |
baf86c9d BA |
2508 | if (ret_val) |
2509 | goto release; | |
f1430d69 | 2510 | ret_val = e1e_wphy_locked(hw, BM_PORT_GEN_CFG, phy_data & 0x00FF); |
651fb102 BA |
2511 | if (ret_val) |
2512 | goto release; | |
2513 | ||
2514 | /* set MSE higher to enable link to stay up when noise is high */ | |
2515 | ret_val = e1000_write_emi_reg_locked(hw, I82577_MSE_THRESHOLD, 0x0034); | |
baf86c9d BA |
2516 | release: |
2517 | hw->phy.ops.release(hw); | |
5015e53a | 2518 | |
a4f58f54 BA |
2519 | return ret_val; |
2520 | } | |
2521 | ||
d3738bb8 BA |
2522 | /** |
2523 | * e1000_copy_rx_addrs_to_phy_ich8lan - Copy Rx addresses from MAC to PHY | |
2524 | * @hw: pointer to the HW structure | |
2525 | **/ | |
2526 | void e1000_copy_rx_addrs_to_phy_ich8lan(struct e1000_hw *hw) | |
2527 | { | |
2528 | u32 mac_reg; | |
2b6b168d BA |
2529 | u16 i, phy_reg = 0; |
2530 | s32 ret_val; | |
2531 | ||
2532 | ret_val = hw->phy.ops.acquire(hw); | |
2533 | if (ret_val) | |
2534 | return; | |
2535 | ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg); | |
2536 | if (ret_val) | |
2537 | goto release; | |
d3738bb8 | 2538 | |
c3a0dce3 DE |
2539 | /* Copy both RAL/H (rar_entry_count) and SHRAL/H to PHY */ |
2540 | for (i = 0; i < (hw->mac.rar_entry_count); i++) { | |
d3738bb8 | 2541 | mac_reg = er32(RAL(i)); |
2b6b168d BA |
2542 | hw->phy.ops.write_reg_page(hw, BM_RAR_L(i), |
2543 | (u16)(mac_reg & 0xFFFF)); | |
2544 | hw->phy.ops.write_reg_page(hw, BM_RAR_M(i), | |
2545 | (u16)((mac_reg >> 16) & 0xFFFF)); | |
2546 | ||
d3738bb8 | 2547 | mac_reg = er32(RAH(i)); |
2b6b168d BA |
2548 | hw->phy.ops.write_reg_page(hw, BM_RAR_H(i), |
2549 | (u16)(mac_reg & 0xFFFF)); | |
2550 | hw->phy.ops.write_reg_page(hw, BM_RAR_CTRL(i), | |
2551 | (u16)((mac_reg & E1000_RAH_AV) | |
2552 | >> 16)); | |
d3738bb8 | 2553 | } |
2b6b168d BA |
2554 | |
2555 | e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg); | |
2556 | ||
2557 | release: | |
2558 | hw->phy.ops.release(hw); | |
d3738bb8 BA |
2559 | } |
2560 | ||
d3738bb8 BA |
2561 | /** |
2562 | * e1000_lv_jumbo_workaround_ich8lan - required for jumbo frame operation | |
2563 | * with 82579 PHY | |
2564 | * @hw: pointer to the HW structure | |
2565 | * @enable: flag to enable/disable workaround when enabling/disabling jumbos | |
2566 | **/ | |
2567 | s32 e1000_lv_jumbo_workaround_ich8lan(struct e1000_hw *hw, bool enable) | |
2568 | { | |
2569 | s32 ret_val = 0; | |
2570 | u16 phy_reg, data; | |
2571 | u32 mac_reg; | |
2572 | u16 i; | |
2573 | ||
2fbe4526 | 2574 | if (hw->mac.type < e1000_pch2lan) |
5015e53a | 2575 | return 0; |
d3738bb8 BA |
2576 | |
2577 | /* disable Rx path while enabling/disabling workaround */ | |
2578 | e1e_rphy(hw, PHY_REG(769, 20), &phy_reg); | |
18dd2392 | 2579 | ret_val = e1e_wphy(hw, PHY_REG(769, 20), phy_reg | BIT(14)); |
d3738bb8 | 2580 | if (ret_val) |
5015e53a | 2581 | return ret_val; |
d3738bb8 BA |
2582 | |
2583 | if (enable) { | |
c3a0dce3 | 2584 | /* Write Rx addresses (rar_entry_count for RAL/H, and |
d3738bb8 BA |
2585 | * SHRAL/H) and initial CRC values to the MAC |
2586 | */ | |
c3a0dce3 | 2587 | for (i = 0; i < hw->mac.rar_entry_count; i++) { |
362e20ca | 2588 | u8 mac_addr[ETH_ALEN] = { 0 }; |
d3738bb8 BA |
2589 | u32 addr_high, addr_low; |
2590 | ||
2591 | addr_high = er32(RAH(i)); | |
2592 | if (!(addr_high & E1000_RAH_AV)) | |
2593 | continue; | |
2594 | addr_low = er32(RAL(i)); | |
2595 | mac_addr[0] = (addr_low & 0xFF); | |
2596 | mac_addr[1] = ((addr_low >> 8) & 0xFF); | |
2597 | mac_addr[2] = ((addr_low >> 16) & 0xFF); | |
2598 | mac_addr[3] = ((addr_low >> 24) & 0xFF); | |
2599 | mac_addr[4] = (addr_high & 0xFF); | |
2600 | mac_addr[5] = ((addr_high >> 8) & 0xFF); | |
2601 | ||
fe46f58f | 2602 | ew32(PCH_RAICC(i), ~ether_crc_le(ETH_ALEN, mac_addr)); |
d3738bb8 BA |
2603 | } |
2604 | ||
2605 | /* Write Rx addresses to the PHY */ | |
2606 | e1000_copy_rx_addrs_to_phy_ich8lan(hw); | |
2607 | ||
2608 | /* Enable jumbo frame workaround in the MAC */ | |
2609 | mac_reg = er32(FFLT_DBG); | |
18dd2392 | 2610 | mac_reg &= ~BIT(14); |
d3738bb8 BA |
2611 | mac_reg |= (7 << 15); |
2612 | ew32(FFLT_DBG, mac_reg); | |
2613 | ||
2614 | mac_reg = er32(RCTL); | |
2615 | mac_reg |= E1000_RCTL_SECRC; | |
2616 | ew32(RCTL, mac_reg); | |
2617 | ||
2618 | ret_val = e1000e_read_kmrn_reg(hw, | |
17e813ec BA |
2619 | E1000_KMRNCTRLSTA_CTRL_OFFSET, |
2620 | &data); | |
d3738bb8 | 2621 | if (ret_val) |
5015e53a | 2622 | return ret_val; |
d3738bb8 BA |
2623 | ret_val = e1000e_write_kmrn_reg(hw, |
2624 | E1000_KMRNCTRLSTA_CTRL_OFFSET, | |
18dd2392 | 2625 | data | BIT(0)); |
d3738bb8 | 2626 | if (ret_val) |
5015e53a | 2627 | return ret_val; |
d3738bb8 | 2628 | ret_val = e1000e_read_kmrn_reg(hw, |
17e813ec BA |
2629 | E1000_KMRNCTRLSTA_HD_CTRL, |
2630 | &data); | |
d3738bb8 | 2631 | if (ret_val) |
5015e53a | 2632 | return ret_val; |
d3738bb8 BA |
2633 | data &= ~(0xF << 8); |
2634 | data |= (0xB << 8); | |
2635 | ret_val = e1000e_write_kmrn_reg(hw, | |
2636 | E1000_KMRNCTRLSTA_HD_CTRL, | |
2637 | data); | |
2638 | if (ret_val) | |
5015e53a | 2639 | return ret_val; |
d3738bb8 BA |
2640 | |
2641 | /* Enable jumbo frame workaround in the PHY */ | |
d3738bb8 BA |
2642 | e1e_rphy(hw, PHY_REG(769, 23), &data); |
2643 | data &= ~(0x7F << 5); | |
2644 | data |= (0x37 << 5); | |
2645 | ret_val = e1e_wphy(hw, PHY_REG(769, 23), data); | |
2646 | if (ret_val) | |
5015e53a | 2647 | return ret_val; |
d3738bb8 | 2648 | e1e_rphy(hw, PHY_REG(769, 16), &data); |
18dd2392 | 2649 | data &= ~BIT(13); |
d3738bb8 BA |
2650 | ret_val = e1e_wphy(hw, PHY_REG(769, 16), data); |
2651 | if (ret_val) | |
5015e53a | 2652 | return ret_val; |
d3738bb8 BA |
2653 | e1e_rphy(hw, PHY_REG(776, 20), &data); |
2654 | data &= ~(0x3FF << 2); | |
493004d0 | 2655 | data |= (E1000_TX_PTR_GAP << 2); |
d3738bb8 BA |
2656 | ret_val = e1e_wphy(hw, PHY_REG(776, 20), data); |
2657 | if (ret_val) | |
5015e53a | 2658 | return ret_val; |
b64e9dd5 | 2659 | ret_val = e1e_wphy(hw, PHY_REG(776, 23), 0xF100); |
d3738bb8 | 2660 | if (ret_val) |
5015e53a | 2661 | return ret_val; |
d3738bb8 | 2662 | e1e_rphy(hw, HV_PM_CTRL, &data); |
18dd2392 | 2663 | ret_val = e1e_wphy(hw, HV_PM_CTRL, data | BIT(10)); |
d3738bb8 | 2664 | if (ret_val) |
5015e53a | 2665 | return ret_val; |
d3738bb8 BA |
2666 | } else { |
2667 | /* Write MAC register values back to h/w defaults */ | |
2668 | mac_reg = er32(FFLT_DBG); | |
2669 | mac_reg &= ~(0xF << 14); | |
2670 | ew32(FFLT_DBG, mac_reg); | |
2671 | ||
2672 | mac_reg = er32(RCTL); | |
2673 | mac_reg &= ~E1000_RCTL_SECRC; | |
a1ce6473 | 2674 | ew32(RCTL, mac_reg); |
d3738bb8 BA |
2675 | |
2676 | ret_val = e1000e_read_kmrn_reg(hw, | |
17e813ec BA |
2677 | E1000_KMRNCTRLSTA_CTRL_OFFSET, |
2678 | &data); | |
d3738bb8 | 2679 | if (ret_val) |
5015e53a | 2680 | return ret_val; |
d3738bb8 BA |
2681 | ret_val = e1000e_write_kmrn_reg(hw, |
2682 | E1000_KMRNCTRLSTA_CTRL_OFFSET, | |
18dd2392 | 2683 | data & ~BIT(0)); |
d3738bb8 | 2684 | if (ret_val) |
5015e53a | 2685 | return ret_val; |
d3738bb8 | 2686 | ret_val = e1000e_read_kmrn_reg(hw, |
17e813ec BA |
2687 | E1000_KMRNCTRLSTA_HD_CTRL, |
2688 | &data); | |
d3738bb8 | 2689 | if (ret_val) |
5015e53a | 2690 | return ret_val; |
d3738bb8 BA |
2691 | data &= ~(0xF << 8); |
2692 | data |= (0xB << 8); | |
2693 | ret_val = e1000e_write_kmrn_reg(hw, | |
2694 | E1000_KMRNCTRLSTA_HD_CTRL, | |
2695 | data); | |
2696 | if (ret_val) | |
5015e53a | 2697 | return ret_val; |
d3738bb8 BA |
2698 | |
2699 | /* Write PHY register values back to h/w defaults */ | |
d3738bb8 BA |
2700 | e1e_rphy(hw, PHY_REG(769, 23), &data); |
2701 | data &= ~(0x7F << 5); | |
2702 | ret_val = e1e_wphy(hw, PHY_REG(769, 23), data); | |
2703 | if (ret_val) | |
5015e53a | 2704 | return ret_val; |
d3738bb8 | 2705 | e1e_rphy(hw, PHY_REG(769, 16), &data); |
18dd2392 | 2706 | data |= BIT(13); |
d3738bb8 BA |
2707 | ret_val = e1e_wphy(hw, PHY_REG(769, 16), data); |
2708 | if (ret_val) | |
5015e53a | 2709 | return ret_val; |
d3738bb8 BA |
2710 | e1e_rphy(hw, PHY_REG(776, 20), &data); |
2711 | data &= ~(0x3FF << 2); | |
2712 | data |= (0x8 << 2); | |
2713 | ret_val = e1e_wphy(hw, PHY_REG(776, 20), data); | |
2714 | if (ret_val) | |
5015e53a | 2715 | return ret_val; |
d3738bb8 BA |
2716 | ret_val = e1e_wphy(hw, PHY_REG(776, 23), 0x7E00); |
2717 | if (ret_val) | |
5015e53a | 2718 | return ret_val; |
d3738bb8 | 2719 | e1e_rphy(hw, HV_PM_CTRL, &data); |
18dd2392 | 2720 | ret_val = e1e_wphy(hw, HV_PM_CTRL, data & ~BIT(10)); |
d3738bb8 | 2721 | if (ret_val) |
5015e53a | 2722 | return ret_val; |
d3738bb8 BA |
2723 | } |
2724 | ||
2725 | /* re-enable Rx path after enabling/disabling workaround */ | |
18dd2392 | 2726 | return e1e_wphy(hw, PHY_REG(769, 20), phy_reg & ~BIT(14)); |
d3738bb8 BA |
2727 | } |
2728 | ||
2729 | /** | |
b50f7bca JB |
2730 | * e1000_lv_phy_workarounds_ich8lan - apply ich8 specific workarounds |
2731 | * @hw: pointer to the HW structure | |
2732 | * | |
2733 | * A series of PHY workarounds to be done after every PHY reset. | |
d3738bb8 BA |
2734 | **/ |
2735 | static s32 e1000_lv_phy_workarounds_ich8lan(struct e1000_hw *hw) | |
2736 | { | |
2737 | s32 ret_val = 0; | |
2738 | ||
2739 | if (hw->mac.type != e1000_pch2lan) | |
5015e53a | 2740 | return 0; |
d3738bb8 BA |
2741 | |
2742 | /* Set MDIO slow mode before any other MDIO access */ | |
2743 | ret_val = e1000_set_mdio_slow_mode_hv(hw); | |
8e5ab42d BA |
2744 | if (ret_val) |
2745 | return ret_val; | |
d3738bb8 | 2746 | |
4d24136c BA |
2747 | ret_val = hw->phy.ops.acquire(hw); |
2748 | if (ret_val) | |
5015e53a | 2749 | return ret_val; |
4d24136c | 2750 | /* set MSE higher to enable link to stay up when noise is high */ |
4ddc48a9 | 2751 | ret_val = e1000_write_emi_reg_locked(hw, I82579_MSE_THRESHOLD, 0x0034); |
4d24136c BA |
2752 | if (ret_val) |
2753 | goto release; | |
2754 | /* drop link after 5 times MSE threshold was reached */ | |
4ddc48a9 | 2755 | ret_val = e1000_write_emi_reg_locked(hw, I82579_MSE_LINK_DOWN, 0x0005); |
4d24136c BA |
2756 | release: |
2757 | hw->phy.ops.release(hw); | |
2758 | ||
d3738bb8 BA |
2759 | return ret_val; |
2760 | } | |
2761 | ||
831bd2e6 BA |
2762 | /** |
2763 | * e1000_k1_gig_workaround_lv - K1 Si workaround | |
2764 | * @hw: pointer to the HW structure | |
2765 | * | |
77e61146 DE |
2766 | * Workaround to set the K1 beacon duration for 82579 parts in 10Mbps |
2767 | * Disable K1 in 1000Mbps and 100Mbps | |
831bd2e6 BA |
2768 | **/ |
2769 | static s32 e1000_k1_workaround_lv(struct e1000_hw *hw) | |
2770 | { | |
2771 | s32 ret_val = 0; | |
2772 | u16 status_reg = 0; | |
831bd2e6 BA |
2773 | |
2774 | if (hw->mac.type != e1000_pch2lan) | |
5015e53a | 2775 | return 0; |
831bd2e6 | 2776 | |
77e61146 | 2777 | /* Set K1 beacon duration based on 10Mbs speed */ |
831bd2e6 BA |
2778 | ret_val = e1e_rphy(hw, HV_M_STATUS, &status_reg); |
2779 | if (ret_val) | |
5015e53a | 2780 | return ret_val; |
831bd2e6 BA |
2781 | |
2782 | if ((status_reg & (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE)) | |
2783 | == (HV_M_STATUS_LINK_UP | HV_M_STATUS_AUTONEG_COMPLETE)) { | |
77e61146 DE |
2784 | if (status_reg & |
2785 | (HV_M_STATUS_SPEED_1000 | HV_M_STATUS_SPEED_100)) { | |
36ceeb43 BA |
2786 | u16 pm_phy_reg; |
2787 | ||
77e61146 | 2788 | /* LV 1G/100 Packet drop issue wa */ |
36ceeb43 BA |
2789 | ret_val = e1e_rphy(hw, HV_PM_CTRL, &pm_phy_reg); |
2790 | if (ret_val) | |
2791 | return ret_val; | |
77e61146 | 2792 | pm_phy_reg &= ~HV_PM_CTRL_K1_ENABLE; |
36ceeb43 BA |
2793 | ret_val = e1e_wphy(hw, HV_PM_CTRL, pm_phy_reg); |
2794 | if (ret_val) | |
2795 | return ret_val; | |
0ed013e2 | 2796 | } else { |
77e61146 DE |
2797 | u32 mac_reg; |
2798 | ||
2799 | mac_reg = er32(FEXTNVM4); | |
2800 | mac_reg &= ~E1000_FEXTNVM4_BEACON_DURATION_MASK; | |
831bd2e6 | 2801 | mac_reg |= E1000_FEXTNVM4_BEACON_DURATION_16USEC; |
77e61146 | 2802 | ew32(FEXTNVM4, mac_reg); |
0ed013e2 | 2803 | } |
831bd2e6 BA |
2804 | } |
2805 | ||
831bd2e6 BA |
2806 | return ret_val; |
2807 | } | |
2808 | ||
605c82ba BA |
2809 | /** |
2810 | * e1000_gate_hw_phy_config_ich8lan - disable PHY config via hardware | |
2811 | * @hw: pointer to the HW structure | |
2812 | * @gate: boolean set to true to gate, false to ungate | |
2813 | * | |
2814 | * Gate/ungate the automatic PHY configuration via hardware; perform | |
2815 | * the configuration via software instead. | |
2816 | **/ | |
2817 | static void e1000_gate_hw_phy_config_ich8lan(struct e1000_hw *hw, bool gate) | |
2818 | { | |
2819 | u32 extcnf_ctrl; | |
2820 | ||
2fbe4526 | 2821 | if (hw->mac.type < e1000_pch2lan) |
605c82ba BA |
2822 | return; |
2823 | ||
2824 | extcnf_ctrl = er32(EXTCNF_CTRL); | |
2825 | ||
2826 | if (gate) | |
2827 | extcnf_ctrl |= E1000_EXTCNF_CTRL_GATE_PHY_CFG; | |
2828 | else | |
2829 | extcnf_ctrl &= ~E1000_EXTCNF_CTRL_GATE_PHY_CFG; | |
2830 | ||
2831 | ew32(EXTCNF_CTRL, extcnf_ctrl); | |
605c82ba BA |
2832 | } |
2833 | ||
fc0c7760 BA |
2834 | /** |
2835 | * e1000_lan_init_done_ich8lan - Check for PHY config completion | |
2836 | * @hw: pointer to the HW structure | |
2837 | * | |
2838 | * Check the appropriate indication the MAC has finished configuring the | |
2839 | * PHY after a software reset. | |
2840 | **/ | |
2841 | static void e1000_lan_init_done_ich8lan(struct e1000_hw *hw) | |
2842 | { | |
2843 | u32 data, loop = E1000_ICH8_LAN_INIT_TIMEOUT; | |
2844 | ||
2845 | /* Wait for basic configuration completes before proceeding */ | |
2846 | do { | |
2847 | data = er32(STATUS); | |
2848 | data &= E1000_STATUS_LAN_INIT_DONE; | |
ce43a216 | 2849 | usleep_range(100, 200); |
fc0c7760 BA |
2850 | } while ((!data) && --loop); |
2851 | ||
e921eb1a | 2852 | /* If basic configuration is incomplete before the above loop |
fc0c7760 BA |
2853 | * count reaches 0, loading the configuration from NVM will |
2854 | * leave the PHY in a bad state possibly resulting in no link. | |
2855 | */ | |
2856 | if (loop == 0) | |
3bb99fe2 | 2857 | e_dbg("LAN_INIT_DONE not set, increase timeout\n"); |
fc0c7760 BA |
2858 | |
2859 | /* Clear the Init Done bit for the next init event */ | |
2860 | data = er32(STATUS); | |
2861 | data &= ~E1000_STATUS_LAN_INIT_DONE; | |
2862 | ew32(STATUS, data); | |
2863 | } | |
2864 | ||
bc7f75fa | 2865 | /** |
e98cac44 | 2866 | * e1000_post_phy_reset_ich8lan - Perform steps required after a PHY reset |
bc7f75fa | 2867 | * @hw: pointer to the HW structure |
bc7f75fa | 2868 | **/ |
e98cac44 | 2869 | static s32 e1000_post_phy_reset_ich8lan(struct e1000_hw *hw) |
bc7f75fa | 2870 | { |
f523d211 BA |
2871 | s32 ret_val = 0; |
2872 | u16 reg; | |
bc7f75fa | 2873 | |
44abd5c1 | 2874 | if (hw->phy.ops.check_reset_block(hw)) |
5015e53a | 2875 | return 0; |
fc0c7760 | 2876 | |
5f3eed6f | 2877 | /* Allow time for h/w to get to quiescent state after reset */ |
ab6973ae | 2878 | usleep_range(10000, 11000); |
5f3eed6f | 2879 | |
fddaa1af | 2880 | /* Perform any necessary post-reset workarounds */ |
e98cac44 BA |
2881 | switch (hw->mac.type) { |
2882 | case e1000_pchlan: | |
a4f58f54 BA |
2883 | ret_val = e1000_hv_phy_workarounds_ich8lan(hw); |
2884 | if (ret_val) | |
5015e53a | 2885 | return ret_val; |
e98cac44 | 2886 | break; |
d3738bb8 BA |
2887 | case e1000_pch2lan: |
2888 | ret_val = e1000_lv_phy_workarounds_ich8lan(hw); | |
2889 | if (ret_val) | |
5015e53a | 2890 | return ret_val; |
d3738bb8 | 2891 | break; |
e98cac44 BA |
2892 | default: |
2893 | break; | |
a4f58f54 BA |
2894 | } |
2895 | ||
3ebfc7c9 BA |
2896 | /* Clear the host wakeup bit after lcd reset */ |
2897 | if (hw->mac.type >= e1000_pchlan) { | |
2898 | e1e_rphy(hw, BM_PORT_GEN_CFG, ®); | |
2899 | reg &= ~BM_WUC_HOST_WU_BIT; | |
2900 | e1e_wphy(hw, BM_PORT_GEN_CFG, reg); | |
2901 | } | |
db2932ec | 2902 | |
f523d211 BA |
2903 | /* Configure the LCD with the extended configuration region in NVM */ |
2904 | ret_val = e1000_sw_lcd_config_ich8lan(hw); | |
2905 | if (ret_val) | |
5015e53a | 2906 | return ret_val; |
bc7f75fa | 2907 | |
f523d211 | 2908 | /* Configure the LCD with the OEM bits in NVM */ |
e98cac44 | 2909 | ret_val = e1000_oem_bits_config_ich8lan(hw, true); |
bc7f75fa | 2910 | |
1effb45c BA |
2911 | if (hw->mac.type == e1000_pch2lan) { |
2912 | /* Ungate automatic PHY configuration on non-managed 82579 */ | |
2913 | if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) { | |
ab6973ae | 2914 | usleep_range(10000, 11000); |
1effb45c BA |
2915 | e1000_gate_hw_phy_config_ich8lan(hw, false); |
2916 | } | |
2917 | ||
2918 | /* Set EEE LPI Update Timer to 200usec */ | |
2919 | ret_val = hw->phy.ops.acquire(hw); | |
2920 | if (ret_val) | |
5015e53a | 2921 | return ret_val; |
4ddc48a9 BA |
2922 | ret_val = e1000_write_emi_reg_locked(hw, |
2923 | I82579_LPI_UPDATE_TIMER, | |
2924 | 0x1387); | |
1effb45c | 2925 | hw->phy.ops.release(hw); |
605c82ba BA |
2926 | } |
2927 | ||
e98cac44 BA |
2928 | return ret_val; |
2929 | } | |
2930 | ||
2931 | /** | |
2932 | * e1000_phy_hw_reset_ich8lan - Performs a PHY reset | |
2933 | * @hw: pointer to the HW structure | |
2934 | * | |
2935 | * Resets the PHY | |
2936 | * This is a function pointer entry point called by drivers | |
2937 | * or other shared routines. | |
2938 | **/ | |
2939 | static s32 e1000_phy_hw_reset_ich8lan(struct e1000_hw *hw) | |
2940 | { | |
2941 | s32 ret_val = 0; | |
2942 | ||
605c82ba BA |
2943 | /* Gate automatic PHY configuration by hardware on non-managed 82579 */ |
2944 | if ((hw->mac.type == e1000_pch2lan) && | |
2945 | !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) | |
2946 | e1000_gate_hw_phy_config_ich8lan(hw, true); | |
2947 | ||
e98cac44 BA |
2948 | ret_val = e1000e_phy_hw_reset_generic(hw); |
2949 | if (ret_val) | |
5015e53a | 2950 | return ret_val; |
e98cac44 | 2951 | |
5015e53a | 2952 | return e1000_post_phy_reset_ich8lan(hw); |
bc7f75fa AK |
2953 | } |
2954 | ||
fa2ce13c BA |
2955 | /** |
2956 | * e1000_set_lplu_state_pchlan - Set Low Power Link Up state | |
2957 | * @hw: pointer to the HW structure | |
2958 | * @active: true to enable LPLU, false to disable | |
2959 | * | |
2960 | * Sets the LPLU state according to the active flag. For PCH, if OEM write | |
2961 | * bit are disabled in the NVM, writing the LPLU bits in the MAC will not set | |
2962 | * the phy speed. This function will manually set the LPLU bit and restart | |
2963 | * auto-neg as hw would do. D3 and D0 LPLU will call the same function | |
2964 | * since it configures the same bit. | |
2965 | **/ | |
2966 | static s32 e1000_set_lplu_state_pchlan(struct e1000_hw *hw, bool active) | |
2967 | { | |
70806a7f | 2968 | s32 ret_val; |
fa2ce13c BA |
2969 | u16 oem_reg; |
2970 | ||
2971 | ret_val = e1e_rphy(hw, HV_OEM_BITS, &oem_reg); | |
2972 | if (ret_val) | |
5015e53a | 2973 | return ret_val; |
fa2ce13c BA |
2974 | |
2975 | if (active) | |
2976 | oem_reg |= HV_OEM_BITS_LPLU; | |
2977 | else | |
2978 | oem_reg &= ~HV_OEM_BITS_LPLU; | |
2979 | ||
44abd5c1 | 2980 | if (!hw->phy.ops.check_reset_block(hw)) |
464c85e3 BA |
2981 | oem_reg |= HV_OEM_BITS_RESTART_AN; |
2982 | ||
5015e53a | 2983 | return e1e_wphy(hw, HV_OEM_BITS, oem_reg); |
fa2ce13c BA |
2984 | } |
2985 | ||
bc7f75fa AK |
2986 | /** |
2987 | * e1000_set_d0_lplu_state_ich8lan - Set Low Power Linkup D0 state | |
2988 | * @hw: pointer to the HW structure | |
564ea9bb | 2989 | * @active: true to enable LPLU, false to disable |
bc7f75fa AK |
2990 | * |
2991 | * Sets the LPLU D0 state according to the active flag. When | |
2992 | * activating LPLU this function also disables smart speed | |
2993 | * and vice versa. LPLU will not be activated unless the | |
2994 | * device autonegotiation advertisement meets standards of | |
2995 | * either 10 or 10/100 or 10/100/1000 at all duplexes. | |
2996 | * This is a function pointer entry point only called by | |
2997 | * PHY setup routines. | |
2998 | **/ | |
2999 | static s32 e1000_set_d0_lplu_state_ich8lan(struct e1000_hw *hw, bool active) | |
3000 | { | |
3001 | struct e1000_phy_info *phy = &hw->phy; | |
3002 | u32 phy_ctrl; | |
3003 | s32 ret_val = 0; | |
3004 | u16 data; | |
3005 | ||
97ac8cae | 3006 | if (phy->type == e1000_phy_ife) |
82607255 | 3007 | return 0; |
bc7f75fa AK |
3008 | |
3009 | phy_ctrl = er32(PHY_CTRL); | |
3010 | ||
3011 | if (active) { | |
3012 | phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU; | |
3013 | ew32(PHY_CTRL, phy_ctrl); | |
3014 | ||
60f1292f BA |
3015 | if (phy->type != e1000_phy_igp_3) |
3016 | return 0; | |
3017 | ||
e921eb1a | 3018 | /* Call gig speed drop workaround on LPLU before accessing |
ad68076e BA |
3019 | * any PHY registers |
3020 | */ | |
60f1292f | 3021 | if (hw->mac.type == e1000_ich8lan) |
bc7f75fa AK |
3022 | e1000e_gig_downshift_workaround_ich8lan(hw); |
3023 | ||
3024 | /* When LPLU is enabled, we should disable SmartSpeed */ | |
3025 | ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data); | |
7dbbe5d5 BA |
3026 | if (ret_val) |
3027 | return ret_val; | |
bc7f75fa AK |
3028 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; |
3029 | ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); | |
3030 | if (ret_val) | |
3031 | return ret_val; | |
3032 | } else { | |
3033 | phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU; | |
3034 | ew32(PHY_CTRL, phy_ctrl); | |
3035 | ||
60f1292f BA |
3036 | if (phy->type != e1000_phy_igp_3) |
3037 | return 0; | |
3038 | ||
e921eb1a | 3039 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used |
bc7f75fa AK |
3040 | * during Dx states where the power conservation is most |
3041 | * important. During driver activity we should enable | |
ad68076e BA |
3042 | * SmartSpeed, so performance is maintained. |
3043 | */ | |
bc7f75fa AK |
3044 | if (phy->smart_speed == e1000_smart_speed_on) { |
3045 | ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, | |
ad68076e | 3046 | &data); |
bc7f75fa AK |
3047 | if (ret_val) |
3048 | return ret_val; | |
3049 | ||
3050 | data |= IGP01E1000_PSCFR_SMART_SPEED; | |
3051 | ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, | |
ad68076e | 3052 | data); |
bc7f75fa AK |
3053 | if (ret_val) |
3054 | return ret_val; | |
3055 | } else if (phy->smart_speed == e1000_smart_speed_off) { | |
3056 | ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, | |
ad68076e | 3057 | &data); |
bc7f75fa AK |
3058 | if (ret_val) |
3059 | return ret_val; | |
3060 | ||
3061 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
3062 | ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, | |
ad68076e | 3063 | data); |
bc7f75fa AK |
3064 | if (ret_val) |
3065 | return ret_val; | |
3066 | } | |
3067 | } | |
3068 | ||
3069 | return 0; | |
3070 | } | |
3071 | ||
3072 | /** | |
3073 | * e1000_set_d3_lplu_state_ich8lan - Set Low Power Linkup D3 state | |
3074 | * @hw: pointer to the HW structure | |
564ea9bb | 3075 | * @active: true to enable LPLU, false to disable |
bc7f75fa AK |
3076 | * |
3077 | * Sets the LPLU D3 state according to the active flag. When | |
3078 | * activating LPLU this function also disables smart speed | |
3079 | * and vice versa. LPLU will not be activated unless the | |
3080 | * device autonegotiation advertisement meets standards of | |
3081 | * either 10 or 10/100 or 10/100/1000 at all duplexes. | |
3082 | * This is a function pointer entry point only called by | |
3083 | * PHY setup routines. | |
3084 | **/ | |
3085 | static s32 e1000_set_d3_lplu_state_ich8lan(struct e1000_hw *hw, bool active) | |
3086 | { | |
3087 | struct e1000_phy_info *phy = &hw->phy; | |
3088 | u32 phy_ctrl; | |
d7eb3384 | 3089 | s32 ret_val = 0; |
bc7f75fa AK |
3090 | u16 data; |
3091 | ||
3092 | phy_ctrl = er32(PHY_CTRL); | |
3093 | ||
3094 | if (!active) { | |
3095 | phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU; | |
3096 | ew32(PHY_CTRL, phy_ctrl); | |
60f1292f BA |
3097 | |
3098 | if (phy->type != e1000_phy_igp_3) | |
3099 | return 0; | |
3100 | ||
e921eb1a | 3101 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used |
bc7f75fa AK |
3102 | * during Dx states where the power conservation is most |
3103 | * important. During driver activity we should enable | |
ad68076e BA |
3104 | * SmartSpeed, so performance is maintained. |
3105 | */ | |
bc7f75fa | 3106 | if (phy->smart_speed == e1000_smart_speed_on) { |
ad68076e BA |
3107 | ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, |
3108 | &data); | |
bc7f75fa AK |
3109 | if (ret_val) |
3110 | return ret_val; | |
3111 | ||
3112 | data |= IGP01E1000_PSCFR_SMART_SPEED; | |
ad68076e BA |
3113 | ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, |
3114 | data); | |
bc7f75fa AK |
3115 | if (ret_val) |
3116 | return ret_val; | |
3117 | } else if (phy->smart_speed == e1000_smart_speed_off) { | |
ad68076e BA |
3118 | ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, |
3119 | &data); | |
bc7f75fa AK |
3120 | if (ret_val) |
3121 | return ret_val; | |
3122 | ||
3123 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
ad68076e BA |
3124 | ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, |
3125 | data); | |
bc7f75fa AK |
3126 | if (ret_val) |
3127 | return ret_val; | |
3128 | } | |
3129 | } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) || | |
3130 | (phy->autoneg_advertised == E1000_ALL_NOT_GIG) || | |
3131 | (phy->autoneg_advertised == E1000_ALL_10_SPEED)) { | |
3132 | phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU; | |
3133 | ew32(PHY_CTRL, phy_ctrl); | |
3134 | ||
60f1292f BA |
3135 | if (phy->type != e1000_phy_igp_3) |
3136 | return 0; | |
3137 | ||
e921eb1a | 3138 | /* Call gig speed drop workaround on LPLU before accessing |
ad68076e BA |
3139 | * any PHY registers |
3140 | */ | |
60f1292f | 3141 | if (hw->mac.type == e1000_ich8lan) |
bc7f75fa AK |
3142 | e1000e_gig_downshift_workaround_ich8lan(hw); |
3143 | ||
3144 | /* When LPLU is enabled, we should disable SmartSpeed */ | |
ad68076e | 3145 | ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data); |
bc7f75fa AK |
3146 | if (ret_val) |
3147 | return ret_val; | |
3148 | ||
3149 | data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
ad68076e | 3150 | ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); |
bc7f75fa AK |
3151 | } |
3152 | ||
d7eb3384 | 3153 | return ret_val; |
bc7f75fa AK |
3154 | } |
3155 | ||
f4187b56 BA |
3156 | /** |
3157 | * e1000_valid_nvm_bank_detect_ich8lan - finds out the valid bank 0 or 1 | |
3158 | * @hw: pointer to the HW structure | |
3159 | * @bank: pointer to the variable that returns the active bank | |
3160 | * | |
3161 | * Reads signature byte from the NVM using the flash access registers. | |
e243455d | 3162 | * Word 0x13 bits 15:14 = 10b indicate a valid signature for that bank. |
f4187b56 BA |
3163 | **/ |
3164 | static s32 e1000_valid_nvm_bank_detect_ich8lan(struct e1000_hw *hw, u32 *bank) | |
3165 | { | |
e243455d | 3166 | u32 eecd; |
f4187b56 | 3167 | struct e1000_nvm_info *nvm = &hw->nvm; |
f4187b56 BA |
3168 | u32 bank1_offset = nvm->flash_bank_size * sizeof(u16); |
3169 | u32 act_offset = E1000_ICH_NVM_SIG_WORD * 2 + 1; | |
f3ed935d | 3170 | u32 nvm_dword = 0; |
e243455d | 3171 | u8 sig_byte = 0; |
f71dde6a | 3172 | s32 ret_val; |
f4187b56 | 3173 | |
e243455d | 3174 | switch (hw->mac.type) { |
79849ebc | 3175 | case e1000_pch_spt: |
c8744f44 | 3176 | case e1000_pch_cnp: |
fb776f5d | 3177 | case e1000_pch_tgp: |
59e46688 | 3178 | case e1000_pch_adp: |
cc23f4f0 | 3179 | case e1000_pch_mtp: |
f3ed935d RA |
3180 | bank1_offset = nvm->flash_bank_size; |
3181 | act_offset = E1000_ICH_NVM_SIG_WORD; | |
3182 | ||
3183 | /* set bank to 0 in case flash read fails */ | |
3184 | *bank = 0; | |
3185 | ||
3186 | /* Check bank 0 */ | |
3187 | ret_val = e1000_read_flash_dword_ich8lan(hw, act_offset, | |
3188 | &nvm_dword); | |
3189 | if (ret_val) | |
3190 | return ret_val; | |
3191 | sig_byte = (u8)((nvm_dword & 0xFF00) >> 8); | |
3192 | if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) == | |
3193 | E1000_ICH_NVM_SIG_VALUE) { | |
3194 | *bank = 0; | |
79849ebc DE |
3195 | return 0; |
3196 | } | |
f3ed935d RA |
3197 | |
3198 | /* Check bank 1 */ | |
3199 | ret_val = e1000_read_flash_dword_ich8lan(hw, act_offset + | |
3200 | bank1_offset, | |
3201 | &nvm_dword); | |
3202 | if (ret_val) | |
3203 | return ret_val; | |
3204 | sig_byte = (u8)((nvm_dword & 0xFF00) >> 8); | |
3205 | if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) == | |
3206 | E1000_ICH_NVM_SIG_VALUE) { | |
3207 | *bank = 1; | |
3208 | return 0; | |
3209 | } | |
3210 | ||
3211 | e_dbg("ERROR: No valid NVM bank present\n"); | |
3212 | return -E1000_ERR_NVM; | |
e243455d BA |
3213 | case e1000_ich8lan: |
3214 | case e1000_ich9lan: | |
3215 | eecd = er32(EECD); | |
3216 | if ((eecd & E1000_EECD_SEC1VAL_VALID_MASK) == | |
3217 | E1000_EECD_SEC1VAL_VALID_MASK) { | |
3218 | if (eecd & E1000_EECD_SEC1VAL) | |
3219 | *bank = 1; | |
3220 | else | |
3221 | *bank = 0; | |
3222 | ||
3223 | return 0; | |
3224 | } | |
434f1392 | 3225 | e_dbg("Unable to determine valid NVM bank via EEC - reading flash signature\n"); |
5463fce6 | 3226 | fallthrough; |
e243455d BA |
3227 | default: |
3228 | /* set bank to 0 in case flash read fails */ | |
3229 | *bank = 0; | |
3230 | ||
3231 | /* Check bank 0 */ | |
3232 | ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset, | |
f0ff4398 | 3233 | &sig_byte); |
e243455d BA |
3234 | if (ret_val) |
3235 | return ret_val; | |
3236 | if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) == | |
3237 | E1000_ICH_NVM_SIG_VALUE) { | |
f4187b56 | 3238 | *bank = 0; |
e243455d BA |
3239 | return 0; |
3240 | } | |
f4187b56 | 3241 | |
e243455d BA |
3242 | /* Check bank 1 */ |
3243 | ret_val = e1000_read_flash_byte_ich8lan(hw, act_offset + | |
f0ff4398 BA |
3244 | bank1_offset, |
3245 | &sig_byte); | |
e243455d BA |
3246 | if (ret_val) |
3247 | return ret_val; | |
3248 | if ((sig_byte & E1000_ICH_NVM_VALID_SIG_MASK) == | |
3249 | E1000_ICH_NVM_SIG_VALUE) { | |
3250 | *bank = 1; | |
3251 | return 0; | |
f4187b56 | 3252 | } |
e243455d | 3253 | |
3bb99fe2 | 3254 | e_dbg("ERROR: No valid NVM bank present\n"); |
e243455d | 3255 | return -E1000_ERR_NVM; |
f4187b56 | 3256 | } |
f4187b56 BA |
3257 | } |
3258 | ||
79849ebc DE |
3259 | /** |
3260 | * e1000_read_nvm_spt - NVM access for SPT | |
3261 | * @hw: pointer to the HW structure | |
3262 | * @offset: The offset (in bytes) of the word(s) to read. | |
3263 | * @words: Size of data to read in words. | |
3264 | * @data: pointer to the word(s) to read at offset. | |
3265 | * | |
3266 | * Reads a word(s) from the NVM | |
3267 | **/ | |
3268 | static s32 e1000_read_nvm_spt(struct e1000_hw *hw, u16 offset, u16 words, | |
3269 | u16 *data) | |
3270 | { | |
3271 | struct e1000_nvm_info *nvm = &hw->nvm; | |
3272 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | |
3273 | u32 act_offset; | |
3274 | s32 ret_val = 0; | |
3275 | u32 bank = 0; | |
3276 | u32 dword = 0; | |
3277 | u16 offset_to_read; | |
3278 | u16 i; | |
3279 | ||
3280 | if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) || | |
3281 | (words == 0)) { | |
3282 | e_dbg("nvm parameter(s) out of bounds\n"); | |
3283 | ret_val = -E1000_ERR_NVM; | |
3284 | goto out; | |
3285 | } | |
3286 | ||
3287 | nvm->ops.acquire(hw); | |
3288 | ||
3289 | ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank); | |
3290 | if (ret_val) { | |
3291 | e_dbg("Could not detect valid bank, assuming bank 0\n"); | |
3292 | bank = 0; | |
3293 | } | |
3294 | ||
3295 | act_offset = (bank) ? nvm->flash_bank_size : 0; | |
3296 | act_offset += offset; | |
3297 | ||
3298 | ret_val = 0; | |
3299 | ||
3300 | for (i = 0; i < words; i += 2) { | |
3301 | if (words - i == 1) { | |
3302 | if (dev_spec->shadow_ram[offset + i].modified) { | |
3303 | data[i] = | |
3304 | dev_spec->shadow_ram[offset + i].value; | |
3305 | } else { | |
3306 | offset_to_read = act_offset + i - | |
3307 | ((act_offset + i) % 2); | |
3308 | ret_val = | |
3309 | e1000_read_flash_dword_ich8lan(hw, | |
3310 | offset_to_read, | |
3311 | &dword); | |
3312 | if (ret_val) | |
3313 | break; | |
3314 | if ((act_offset + i) % 2 == 0) | |
3315 | data[i] = (u16)(dword & 0xFFFF); | |
3316 | else | |
3317 | data[i] = (u16)((dword >> 16) & 0xFFFF); | |
3318 | } | |
3319 | } else { | |
3320 | offset_to_read = act_offset + i; | |
3321 | if (!(dev_spec->shadow_ram[offset + i].modified) || | |
3322 | !(dev_spec->shadow_ram[offset + i + 1].modified)) { | |
3323 | ret_val = | |
3324 | e1000_read_flash_dword_ich8lan(hw, | |
3325 | offset_to_read, | |
3326 | &dword); | |
3327 | if (ret_val) | |
3328 | break; | |
3329 | } | |
3330 | if (dev_spec->shadow_ram[offset + i].modified) | |
3331 | data[i] = | |
3332 | dev_spec->shadow_ram[offset + i].value; | |
3333 | else | |
3334 | data[i] = (u16)(dword & 0xFFFF); | |
3335 | if (dev_spec->shadow_ram[offset + i].modified) | |
3336 | data[i + 1] = | |
3337 | dev_spec->shadow_ram[offset + i + 1].value; | |
3338 | else | |
3339 | data[i + 1] = (u16)(dword >> 16 & 0xFFFF); | |
3340 | } | |
3341 | } | |
3342 | ||
3343 | nvm->ops.release(hw); | |
3344 | ||
3345 | out: | |
3346 | if (ret_val) | |
3347 | e_dbg("NVM read error: %d\n", ret_val); | |
3348 | ||
3349 | return ret_val; | |
3350 | } | |
3351 | ||
bc7f75fa AK |
3352 | /** |
3353 | * e1000_read_nvm_ich8lan - Read word(s) from the NVM | |
3354 | * @hw: pointer to the HW structure | |
3355 | * @offset: The offset (in bytes) of the word(s) to read. | |
3356 | * @words: Size of data to read in words | |
3357 | * @data: Pointer to the word(s) to read at offset. | |
3358 | * | |
3359 | * Reads a word(s) from the NVM using the flash access registers. | |
3360 | **/ | |
3361 | static s32 e1000_read_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words, | |
3362 | u16 *data) | |
3363 | { | |
3364 | struct e1000_nvm_info *nvm = &hw->nvm; | |
3365 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | |
3366 | u32 act_offset; | |
148675a7 | 3367 | s32 ret_val = 0; |
f4187b56 | 3368 | u32 bank = 0; |
bc7f75fa AK |
3369 | u16 i, word; |
3370 | ||
3371 | if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) || | |
3372 | (words == 0)) { | |
3bb99fe2 | 3373 | e_dbg("nvm parameter(s) out of bounds\n"); |
ca15df58 BA |
3374 | ret_val = -E1000_ERR_NVM; |
3375 | goto out; | |
bc7f75fa AK |
3376 | } |
3377 | ||
94d8186a | 3378 | nvm->ops.acquire(hw); |
bc7f75fa | 3379 | |
f4187b56 | 3380 | ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank); |
148675a7 | 3381 | if (ret_val) { |
3bb99fe2 | 3382 | e_dbg("Could not detect valid bank, assuming bank 0\n"); |
148675a7 BA |
3383 | bank = 0; |
3384 | } | |
f4187b56 BA |
3385 | |
3386 | act_offset = (bank) ? nvm->flash_bank_size : 0; | |
bc7f75fa AK |
3387 | act_offset += offset; |
3388 | ||
148675a7 | 3389 | ret_val = 0; |
bc7f75fa | 3390 | for (i = 0; i < words; i++) { |
362e20ca BA |
3391 | if (dev_spec->shadow_ram[offset + i].modified) { |
3392 | data[i] = dev_spec->shadow_ram[offset + i].value; | |
bc7f75fa AK |
3393 | } else { |
3394 | ret_val = e1000_read_flash_word_ich8lan(hw, | |
3395 | act_offset + i, | |
3396 | &word); | |
3397 | if (ret_val) | |
3398 | break; | |
3399 | data[i] = word; | |
3400 | } | |
3401 | } | |
3402 | ||
94d8186a | 3403 | nvm->ops.release(hw); |
bc7f75fa | 3404 | |
e243455d BA |
3405 | out: |
3406 | if (ret_val) | |
3bb99fe2 | 3407 | e_dbg("NVM read error: %d\n", ret_val); |
e243455d | 3408 | |
bc7f75fa AK |
3409 | return ret_val; |
3410 | } | |
3411 | ||
3412 | /** | |
3413 | * e1000_flash_cycle_init_ich8lan - Initialize flash | |
3414 | * @hw: pointer to the HW structure | |
3415 | * | |
3416 | * This function does initial flash setup so that a new read/write/erase cycle | |
3417 | * can be started. | |
3418 | **/ | |
3419 | static s32 e1000_flash_cycle_init_ich8lan(struct e1000_hw *hw) | |
3420 | { | |
3421 | union ich8_hws_flash_status hsfsts; | |
3422 | s32 ret_val = -E1000_ERR_NVM; | |
bc7f75fa AK |
3423 | |
3424 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | |
3425 | ||
3426 | /* Check if the flash descriptor is valid */ | |
04499ec4 | 3427 | if (!hsfsts.hsf_status.fldesvalid) { |
434f1392 | 3428 | e_dbg("Flash descriptor invalid. SW Sequencing must be used.\n"); |
bc7f75fa AK |
3429 | return -E1000_ERR_NVM; |
3430 | } | |
3431 | ||
3432 | /* Clear FCERR and DAEL in hw status by writing 1 */ | |
3433 | hsfsts.hsf_status.flcerr = 1; | |
3434 | hsfsts.hsf_status.dael = 1; | |
c8744f44 | 3435 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
3436 | ew32flash(ICH_FLASH_HSFSTS, hsfsts.regval & 0xFFFF); |
3437 | else | |
3438 | ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval); | |
bc7f75fa | 3439 | |
e921eb1a | 3440 | /* Either we should have a hardware SPI cycle in progress |
bc7f75fa AK |
3441 | * bit to check against, in order to start a new cycle or |
3442 | * FDONE bit should be changed in the hardware so that it | |
489815ce | 3443 | * is 1 after hardware reset, which can then be used as an |
bc7f75fa AK |
3444 | * indication whether a cycle is in progress or has been |
3445 | * completed. | |
3446 | */ | |
3447 | ||
04499ec4 | 3448 | if (!hsfsts.hsf_status.flcinprog) { |
e921eb1a | 3449 | /* There is no cycle running at present, |
5ff5b664 | 3450 | * so we can start a cycle. |
ad68076e BA |
3451 | * Begin by setting Flash Cycle Done. |
3452 | */ | |
bc7f75fa | 3453 | hsfsts.hsf_status.flcdone = 1; |
c8744f44 | 3454 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
3455 | ew32flash(ICH_FLASH_HSFSTS, hsfsts.regval & 0xFFFF); |
3456 | else | |
3457 | ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval); | |
bc7f75fa AK |
3458 | ret_val = 0; |
3459 | } else { | |
f71dde6a | 3460 | s32 i; |
90da0669 | 3461 | |
e921eb1a | 3462 | /* Otherwise poll for sometime so the current |
ad68076e BA |
3463 | * cycle has a chance to end before giving up. |
3464 | */ | |
bc7f75fa | 3465 | for (i = 0; i < ICH_FLASH_READ_COMMAND_TIMEOUT; i++) { |
c8243ee0 | 3466 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); |
04499ec4 | 3467 | if (!hsfsts.hsf_status.flcinprog) { |
bc7f75fa AK |
3468 | ret_val = 0; |
3469 | break; | |
3470 | } | |
3471 | udelay(1); | |
3472 | } | |
9e2d7657 | 3473 | if (!ret_val) { |
e921eb1a | 3474 | /* Successful in waiting for previous cycle to timeout, |
ad68076e BA |
3475 | * now set the Flash Cycle Done. |
3476 | */ | |
bc7f75fa | 3477 | hsfsts.hsf_status.flcdone = 1; |
c8744f44 | 3478 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
3479 | ew32flash(ICH_FLASH_HSFSTS, |
3480 | hsfsts.regval & 0xFFFF); | |
3481 | else | |
3482 | ew16flash(ICH_FLASH_HSFSTS, hsfsts.regval); | |
bc7f75fa | 3483 | } else { |
2c73e1fe | 3484 | e_dbg("Flash controller busy, cannot get access\n"); |
bc7f75fa AK |
3485 | } |
3486 | } | |
3487 | ||
3488 | return ret_val; | |
3489 | } | |
3490 | ||
3491 | /** | |
3492 | * e1000_flash_cycle_ich8lan - Starts flash cycle (read/write/erase) | |
3493 | * @hw: pointer to the HW structure | |
3494 | * @timeout: maximum time to wait for completion | |
3495 | * | |
3496 | * This function starts a flash cycle and waits for its completion. | |
3497 | **/ | |
3498 | static s32 e1000_flash_cycle_ich8lan(struct e1000_hw *hw, u32 timeout) | |
3499 | { | |
3500 | union ich8_hws_flash_ctrl hsflctl; | |
3501 | union ich8_hws_flash_status hsfsts; | |
bc7f75fa AK |
3502 | u32 i = 0; |
3503 | ||
3504 | /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */ | |
c8744f44 | 3505 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
3506 | hsflctl.regval = er32flash(ICH_FLASH_HSFSTS) >> 16; |
3507 | else | |
3508 | hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); | |
bc7f75fa | 3509 | hsflctl.hsf_ctrl.flcgo = 1; |
79849ebc | 3510 | |
c8744f44 | 3511 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
3512 | ew32flash(ICH_FLASH_HSFSTS, hsflctl.regval << 16); |
3513 | else | |
3514 | ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); | |
bc7f75fa AK |
3515 | |
3516 | /* wait till FDONE bit is set to 1 */ | |
3517 | do { | |
3518 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | |
04499ec4 | 3519 | if (hsfsts.hsf_status.flcdone) |
bc7f75fa AK |
3520 | break; |
3521 | udelay(1); | |
3522 | } while (i++ < timeout); | |
3523 | ||
04499ec4 | 3524 | if (hsfsts.hsf_status.flcdone && !hsfsts.hsf_status.flcerr) |
bc7f75fa AK |
3525 | return 0; |
3526 | ||
55920b5e | 3527 | return -E1000_ERR_NVM; |
bc7f75fa AK |
3528 | } |
3529 | ||
79849ebc DE |
3530 | /** |
3531 | * e1000_read_flash_dword_ich8lan - Read dword from flash | |
3532 | * @hw: pointer to the HW structure | |
3533 | * @offset: offset to data location | |
3534 | * @data: pointer to the location for storing the data | |
3535 | * | |
3536 | * Reads the flash dword at offset into data. Offset is converted | |
3537 | * to bytes before read. | |
3538 | **/ | |
3539 | static s32 e1000_read_flash_dword_ich8lan(struct e1000_hw *hw, u32 offset, | |
3540 | u32 *data) | |
3541 | { | |
3542 | /* Must convert word offset into bytes. */ | |
3543 | offset <<= 1; | |
3544 | return e1000_read_flash_data32_ich8lan(hw, offset, data); | |
3545 | } | |
3546 | ||
bc7f75fa AK |
3547 | /** |
3548 | * e1000_read_flash_word_ich8lan - Read word from flash | |
3549 | * @hw: pointer to the HW structure | |
3550 | * @offset: offset to data location | |
3551 | * @data: pointer to the location for storing the data | |
3552 | * | |
3553 | * Reads the flash word at offset into data. Offset is converted | |
3554 | * to bytes before read. | |
3555 | **/ | |
3556 | static s32 e1000_read_flash_word_ich8lan(struct e1000_hw *hw, u32 offset, | |
3557 | u16 *data) | |
3558 | { | |
3559 | /* Must convert offset into bytes. */ | |
3560 | offset <<= 1; | |
3561 | ||
3562 | return e1000_read_flash_data_ich8lan(hw, offset, 2, data); | |
3563 | } | |
3564 | ||
f4187b56 BA |
3565 | /** |
3566 | * e1000_read_flash_byte_ich8lan - Read byte from flash | |
3567 | * @hw: pointer to the HW structure | |
3568 | * @offset: The offset of the byte to read. | |
3569 | * @data: Pointer to a byte to store the value read. | |
3570 | * | |
3571 | * Reads a single byte from the NVM using the flash access registers. | |
3572 | **/ | |
3573 | static s32 e1000_read_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset, | |
3574 | u8 *data) | |
3575 | { | |
3576 | s32 ret_val; | |
3577 | u16 word = 0; | |
3578 | ||
79849ebc DE |
3579 | /* In SPT, only 32 bits access is supported, |
3580 | * so this function should not be called. | |
3581 | */ | |
c8744f44 | 3582 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
3583 | return -E1000_ERR_NVM; |
3584 | else | |
3585 | ret_val = e1000_read_flash_data_ich8lan(hw, offset, 1, &word); | |
3586 | ||
f4187b56 BA |
3587 | if (ret_val) |
3588 | return ret_val; | |
3589 | ||
3590 | *data = (u8)word; | |
3591 | ||
3592 | return 0; | |
3593 | } | |
3594 | ||
bc7f75fa AK |
3595 | /** |
3596 | * e1000_read_flash_data_ich8lan - Read byte or word from NVM | |
3597 | * @hw: pointer to the HW structure | |
3598 | * @offset: The offset (in bytes) of the byte or word to read. | |
3599 | * @size: Size of data to read, 1=byte 2=word | |
3600 | * @data: Pointer to the word to store the value read. | |
3601 | * | |
3602 | * Reads a byte or word from the NVM using the flash access registers. | |
3603 | **/ | |
3604 | static s32 e1000_read_flash_data_ich8lan(struct e1000_hw *hw, u32 offset, | |
3605 | u8 size, u16 *data) | |
3606 | { | |
3607 | union ich8_hws_flash_status hsfsts; | |
3608 | union ich8_hws_flash_ctrl hsflctl; | |
3609 | u32 flash_linear_addr; | |
3610 | u32 flash_data = 0; | |
3611 | s32 ret_val = -E1000_ERR_NVM; | |
3612 | u8 count = 0; | |
3613 | ||
e80bd1d1 | 3614 | if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK) |
bc7f75fa AK |
3615 | return -E1000_ERR_NVM; |
3616 | ||
f0ff4398 BA |
3617 | flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) + |
3618 | hw->nvm.flash_base_addr); | |
bc7f75fa AK |
3619 | |
3620 | do { | |
3621 | udelay(1); | |
3622 | /* Steps */ | |
3623 | ret_val = e1000_flash_cycle_init_ich8lan(hw); | |
9e2d7657 | 3624 | if (ret_val) |
bc7f75fa AK |
3625 | break; |
3626 | ||
3627 | hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); | |
3628 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ | |
3629 | hsflctl.hsf_ctrl.fldbcount = size - 1; | |
3630 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ; | |
3631 | ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); | |
3632 | ||
3633 | ew32flash(ICH_FLASH_FADDR, flash_linear_addr); | |
3634 | ||
17e813ec BA |
3635 | ret_val = |
3636 | e1000_flash_cycle_ich8lan(hw, | |
3637 | ICH_FLASH_READ_COMMAND_TIMEOUT); | |
bc7f75fa | 3638 | |
e921eb1a | 3639 | /* Check if FCERR is set to 1, if set to 1, clear it |
bc7f75fa AK |
3640 | * and try the whole sequence a few more times, else |
3641 | * read in (shift in) the Flash Data0, the order is | |
ad68076e BA |
3642 | * least significant byte first msb to lsb |
3643 | */ | |
9e2d7657 | 3644 | if (!ret_val) { |
bc7f75fa | 3645 | flash_data = er32flash(ICH_FLASH_FDATA0); |
b1cdfead | 3646 | if (size == 1) |
bc7f75fa | 3647 | *data = (u8)(flash_data & 0x000000FF); |
b1cdfead | 3648 | else if (size == 2) |
bc7f75fa | 3649 | *data = (u16)(flash_data & 0x0000FFFF); |
bc7f75fa AK |
3650 | break; |
3651 | } else { | |
e921eb1a | 3652 | /* If we've gotten here, then things are probably |
bc7f75fa AK |
3653 | * completely hosed, but if the error condition is |
3654 | * detected, it won't hurt to give it another try... | |
3655 | * ICH_FLASH_CYCLE_REPEAT_COUNT times. | |
3656 | */ | |
3657 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | |
04499ec4 | 3658 | if (hsfsts.hsf_status.flcerr) { |
bc7f75fa AK |
3659 | /* Repeat for some time before giving up. */ |
3660 | continue; | |
04499ec4 | 3661 | } else if (!hsfsts.hsf_status.flcdone) { |
434f1392 | 3662 | e_dbg("Timeout error - flash cycle did not complete.\n"); |
bc7f75fa AK |
3663 | break; |
3664 | } | |
3665 | } | |
3666 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); | |
3667 | ||
3668 | return ret_val; | |
3669 | } | |
3670 | ||
79849ebc DE |
3671 | /** |
3672 | * e1000_read_flash_data32_ich8lan - Read dword from NVM | |
3673 | * @hw: pointer to the HW structure | |
3674 | * @offset: The offset (in bytes) of the dword to read. | |
3675 | * @data: Pointer to the dword to store the value read. | |
3676 | * | |
3677 | * Reads a byte or word from the NVM using the flash access registers. | |
3678 | **/ | |
3679 | ||
3680 | static s32 e1000_read_flash_data32_ich8lan(struct e1000_hw *hw, u32 offset, | |
3681 | u32 *data) | |
3682 | { | |
3683 | union ich8_hws_flash_status hsfsts; | |
3684 | union ich8_hws_flash_ctrl hsflctl; | |
3685 | u32 flash_linear_addr; | |
3686 | s32 ret_val = -E1000_ERR_NVM; | |
3687 | u8 count = 0; | |
3688 | ||
c8744f44 | 3689 | if (offset > ICH_FLASH_LINEAR_ADDR_MASK || hw->mac.type < e1000_pch_spt) |
79849ebc DE |
3690 | return -E1000_ERR_NVM; |
3691 | flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) + | |
3692 | hw->nvm.flash_base_addr); | |
3693 | ||
3694 | do { | |
3695 | udelay(1); | |
3696 | /* Steps */ | |
3697 | ret_val = e1000_flash_cycle_init_ich8lan(hw); | |
3698 | if (ret_val) | |
3699 | break; | |
3700 | /* In SPT, This register is in Lan memory space, not flash. | |
3701 | * Therefore, only 32 bit access is supported | |
3702 | */ | |
3703 | hsflctl.regval = er32flash(ICH_FLASH_HSFSTS) >> 16; | |
3704 | ||
3705 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ | |
3706 | hsflctl.hsf_ctrl.fldbcount = sizeof(u32) - 1; | |
3707 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ; | |
3708 | /* In SPT, This register is in Lan memory space, not flash. | |
3709 | * Therefore, only 32 bit access is supported | |
3710 | */ | |
3711 | ew32flash(ICH_FLASH_HSFSTS, (u32)hsflctl.regval << 16); | |
3712 | ew32flash(ICH_FLASH_FADDR, flash_linear_addr); | |
3713 | ||
3714 | ret_val = | |
3715 | e1000_flash_cycle_ich8lan(hw, | |
3716 | ICH_FLASH_READ_COMMAND_TIMEOUT); | |
3717 | ||
3718 | /* Check if FCERR is set to 1, if set to 1, clear it | |
3719 | * and try the whole sequence a few more times, else | |
3720 | * read in (shift in) the Flash Data0, the order is | |
3721 | * least significant byte first msb to lsb | |
3722 | */ | |
3723 | if (!ret_val) { | |
3724 | *data = er32flash(ICH_FLASH_FDATA0); | |
3725 | break; | |
3726 | } else { | |
3727 | /* If we've gotten here, then things are probably | |
3728 | * completely hosed, but if the error condition is | |
3729 | * detected, it won't hurt to give it another try... | |
3730 | * ICH_FLASH_CYCLE_REPEAT_COUNT times. | |
3731 | */ | |
3732 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | |
3733 | if (hsfsts.hsf_status.flcerr) { | |
3734 | /* Repeat for some time before giving up. */ | |
3735 | continue; | |
3736 | } else if (!hsfsts.hsf_status.flcdone) { | |
3737 | e_dbg("Timeout error - flash cycle did not complete.\n"); | |
3738 | break; | |
3739 | } | |
3740 | } | |
3741 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); | |
3742 | ||
3743 | return ret_val; | |
3744 | } | |
3745 | ||
bc7f75fa AK |
3746 | /** |
3747 | * e1000_write_nvm_ich8lan - Write word(s) to the NVM | |
3748 | * @hw: pointer to the HW structure | |
3749 | * @offset: The offset (in bytes) of the word(s) to write. | |
3750 | * @words: Size of data to write in words | |
3751 | * @data: Pointer to the word(s) to write at offset. | |
3752 | * | |
3753 | * Writes a byte or word to the NVM using the flash access registers. | |
3754 | **/ | |
3755 | static s32 e1000_write_nvm_ich8lan(struct e1000_hw *hw, u16 offset, u16 words, | |
3756 | u16 *data) | |
3757 | { | |
3758 | struct e1000_nvm_info *nvm = &hw->nvm; | |
3759 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | |
bc7f75fa AK |
3760 | u16 i; |
3761 | ||
3762 | if ((offset >= nvm->word_size) || (words > nvm->word_size - offset) || | |
3763 | (words == 0)) { | |
3bb99fe2 | 3764 | e_dbg("nvm parameter(s) out of bounds\n"); |
bc7f75fa AK |
3765 | return -E1000_ERR_NVM; |
3766 | } | |
3767 | ||
94d8186a | 3768 | nvm->ops.acquire(hw); |
ca15df58 | 3769 | |
bc7f75fa | 3770 | for (i = 0; i < words; i++) { |
362e20ca BA |
3771 | dev_spec->shadow_ram[offset + i].modified = true; |
3772 | dev_spec->shadow_ram[offset + i].value = data[i]; | |
bc7f75fa AK |
3773 | } |
3774 | ||
94d8186a | 3775 | nvm->ops.release(hw); |
ca15df58 | 3776 | |
bc7f75fa AK |
3777 | return 0; |
3778 | } | |
3779 | ||
3780 | /** | |
79849ebc | 3781 | * e1000_update_nvm_checksum_spt - Update the checksum for NVM |
bc7f75fa AK |
3782 | * @hw: pointer to the HW structure |
3783 | * | |
3784 | * The NVM checksum is updated by calling the generic update_nvm_checksum, | |
3785 | * which writes the checksum to the shadow ram. The changes in the shadow | |
3786 | * ram are then committed to the EEPROM by processing each bank at a time | |
3787 | * checking for the modified bit and writing only the pending changes. | |
489815ce | 3788 | * After a successful commit, the shadow ram is cleared and is ready for |
bc7f75fa AK |
3789 | * future writes. |
3790 | **/ | |
79849ebc | 3791 | static s32 e1000_update_nvm_checksum_spt(struct e1000_hw *hw) |
bc7f75fa AK |
3792 | { |
3793 | struct e1000_nvm_info *nvm = &hw->nvm; | |
3794 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | |
f4187b56 | 3795 | u32 i, act_offset, new_bank_offset, old_bank_offset, bank; |
bc7f75fa | 3796 | s32 ret_val; |
79849ebc | 3797 | u32 dword = 0; |
bc7f75fa AK |
3798 | |
3799 | ret_val = e1000e_update_nvm_checksum_generic(hw); | |
3800 | if (ret_val) | |
e243455d | 3801 | goto out; |
bc7f75fa AK |
3802 | |
3803 | if (nvm->type != e1000_nvm_flash_sw) | |
e243455d | 3804 | goto out; |
bc7f75fa | 3805 | |
94d8186a | 3806 | nvm->ops.acquire(hw); |
bc7f75fa | 3807 | |
e921eb1a | 3808 | /* We're writing to the opposite bank so if we're on bank 1, |
bc7f75fa | 3809 | * write to bank 0 etc. We also need to erase the segment that |
ad68076e BA |
3810 | * is going to be written |
3811 | */ | |
e80bd1d1 | 3812 | ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank); |
e243455d | 3813 | if (ret_val) { |
3bb99fe2 | 3814 | e_dbg("Could not detect valid bank, assuming bank 0\n"); |
148675a7 | 3815 | bank = 0; |
e243455d | 3816 | } |
f4187b56 BA |
3817 | |
3818 | if (bank == 0) { | |
bc7f75fa AK |
3819 | new_bank_offset = nvm->flash_bank_size; |
3820 | old_bank_offset = 0; | |
e243455d | 3821 | ret_val = e1000_erase_flash_bank_ich8lan(hw, 1); |
9c5e209d BA |
3822 | if (ret_val) |
3823 | goto release; | |
bc7f75fa AK |
3824 | } else { |
3825 | old_bank_offset = nvm->flash_bank_size; | |
3826 | new_bank_offset = 0; | |
e243455d | 3827 | ret_val = e1000_erase_flash_bank_ich8lan(hw, 0); |
9c5e209d BA |
3828 | if (ret_val) |
3829 | goto release; | |
bc7f75fa | 3830 | } |
79849ebc | 3831 | for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i += 2) { |
e921eb1a | 3832 | /* Determine whether to write the value stored |
bc7f75fa | 3833 | * in the other NVM bank or a modified value stored |
ad68076e BA |
3834 | * in the shadow RAM |
3835 | */ | |
79849ebc DE |
3836 | ret_val = e1000_read_flash_dword_ich8lan(hw, |
3837 | i + old_bank_offset, | |
3838 | &dword); | |
3839 | ||
3840 | if (dev_spec->shadow_ram[i].modified) { | |
3841 | dword &= 0xffff0000; | |
3842 | dword |= (dev_spec->shadow_ram[i].value & 0xffff); | |
3843 | } | |
3844 | if (dev_spec->shadow_ram[i + 1].modified) { | |
3845 | dword &= 0x0000ffff; | |
3846 | dword |= ((dev_spec->shadow_ram[i + 1].value & 0xffff) | |
3847 | << 16); | |
3848 | } | |
3849 | if (ret_val) | |
3850 | break; | |
3851 | ||
3852 | /* If the word is 0x13, then make sure the signature bits | |
3853 | * (15:14) are 11b until the commit has completed. | |
3854 | * This will allow us to write 10b which indicates the | |
3855 | * signature is valid. We want to do this after the write | |
3856 | * has completed so that we don't mark the segment valid | |
3857 | * while the write is still in progress | |
3858 | */ | |
3859 | if (i == E1000_ICH_NVM_SIG_WORD - 1) | |
3860 | dword |= E1000_ICH_NVM_SIG_MASK << 16; | |
3861 | ||
3862 | /* Convert offset to bytes. */ | |
3863 | act_offset = (i + new_bank_offset) << 1; | |
3864 | ||
3865 | usleep_range(100, 200); | |
3866 | ||
3867 | /* Write the data to the new bank. Offset in words */ | |
3868 | act_offset = i + new_bank_offset; | |
3869 | ret_val = e1000_retry_write_flash_dword_ich8lan(hw, act_offset, | |
3870 | dword); | |
3871 | if (ret_val) | |
3872 | break; | |
3873 | } | |
3874 | ||
3875 | /* Don't bother writing the segment valid bits if sector | |
3876 | * programming failed. | |
3877 | */ | |
3878 | if (ret_val) { | |
3879 | /* Possibly read-only, see e1000e_write_protect_nvm_ich8lan() */ | |
3880 | e_dbg("Flash commit failed.\n"); | |
3881 | goto release; | |
3882 | } | |
3883 | ||
3884 | /* Finally validate the new segment by setting bit 15:14 | |
3885 | * to 10b in word 0x13 , this can be done without an | |
3886 | * erase as well since these bits are 11 to start with | |
3887 | * and we need to change bit 14 to 0b | |
3888 | */ | |
3889 | act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD; | |
3890 | ||
3891 | /*offset in words but we read dword */ | |
3892 | --act_offset; | |
3893 | ret_val = e1000_read_flash_dword_ich8lan(hw, act_offset, &dword); | |
3894 | ||
3895 | if (ret_val) | |
3896 | goto release; | |
3897 | ||
3898 | dword &= 0xBFFFFFFF; | |
3899 | ret_val = e1000_retry_write_flash_dword_ich8lan(hw, act_offset, dword); | |
3900 | ||
3901 | if (ret_val) | |
3902 | goto release; | |
3903 | ||
3904 | /* And invalidate the previously valid segment by setting | |
3905 | * its signature word (0x13) high_byte to 0b. This can be | |
3906 | * done without an erase because flash erase sets all bits | |
3907 | * to 1's. We can write 1's to 0's without an erase | |
3908 | */ | |
3909 | act_offset = (old_bank_offset + E1000_ICH_NVM_SIG_WORD) * 2 + 1; | |
3910 | ||
3911 | /* offset in words but we read dword */ | |
3912 | act_offset = old_bank_offset + E1000_ICH_NVM_SIG_WORD - 1; | |
3913 | ret_val = e1000_read_flash_dword_ich8lan(hw, act_offset, &dword); | |
3914 | ||
3915 | if (ret_val) | |
3916 | goto release; | |
3917 | ||
3918 | dword &= 0x00FFFFFF; | |
3919 | ret_val = e1000_retry_write_flash_dword_ich8lan(hw, act_offset, dword); | |
3920 | ||
3921 | if (ret_val) | |
3922 | goto release; | |
3923 | ||
3924 | /* Great! Everything worked, we can now clear the cached entries. */ | |
3925 | for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) { | |
3926 | dev_spec->shadow_ram[i].modified = false; | |
3927 | dev_spec->shadow_ram[i].value = 0xFFFF; | |
3928 | } | |
3929 | ||
3930 | release: | |
3931 | nvm->ops.release(hw); | |
3932 | ||
3933 | /* Reload the EEPROM, or else modifications will not appear | |
3934 | * until after the next adapter reset. | |
3935 | */ | |
3936 | if (!ret_val) { | |
3937 | nvm->ops.reload(hw); | |
ab6973ae | 3938 | usleep_range(10000, 11000); |
79849ebc DE |
3939 | } |
3940 | ||
3941 | out: | |
3942 | if (ret_val) | |
3943 | e_dbg("NVM update error: %d\n", ret_val); | |
3944 | ||
3945 | return ret_val; | |
3946 | } | |
3947 | ||
3948 | /** | |
3949 | * e1000_update_nvm_checksum_ich8lan - Update the checksum for NVM | |
3950 | * @hw: pointer to the HW structure | |
3951 | * | |
3952 | * The NVM checksum is updated by calling the generic update_nvm_checksum, | |
3953 | * which writes the checksum to the shadow ram. The changes in the shadow | |
3954 | * ram are then committed to the EEPROM by processing each bank at a time | |
3955 | * checking for the modified bit and writing only the pending changes. | |
3956 | * After a successful commit, the shadow ram is cleared and is ready for | |
3957 | * future writes. | |
3958 | **/ | |
3959 | static s32 e1000_update_nvm_checksum_ich8lan(struct e1000_hw *hw) | |
3960 | { | |
3961 | struct e1000_nvm_info *nvm = &hw->nvm; | |
3962 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | |
3963 | u32 i, act_offset, new_bank_offset, old_bank_offset, bank; | |
3964 | s32 ret_val; | |
3965 | u16 data = 0; | |
3966 | ||
3967 | ret_val = e1000e_update_nvm_checksum_generic(hw); | |
3968 | if (ret_val) | |
3969 | goto out; | |
3970 | ||
3971 | if (nvm->type != e1000_nvm_flash_sw) | |
3972 | goto out; | |
3973 | ||
3974 | nvm->ops.acquire(hw); | |
3975 | ||
3976 | /* We're writing to the opposite bank so if we're on bank 1, | |
3977 | * write to bank 0 etc. We also need to erase the segment that | |
3978 | * is going to be written | |
3979 | */ | |
3980 | ret_val = e1000_valid_nvm_bank_detect_ich8lan(hw, &bank); | |
3981 | if (ret_val) { | |
3982 | e_dbg("Could not detect valid bank, assuming bank 0\n"); | |
3983 | bank = 0; | |
3984 | } | |
3985 | ||
3986 | if (bank == 0) { | |
3987 | new_bank_offset = nvm->flash_bank_size; | |
3988 | old_bank_offset = 0; | |
3989 | ret_val = e1000_erase_flash_bank_ich8lan(hw, 1); | |
3990 | if (ret_val) | |
3991 | goto release; | |
3992 | } else { | |
3993 | old_bank_offset = nvm->flash_bank_size; | |
3994 | new_bank_offset = 0; | |
3995 | ret_val = e1000_erase_flash_bank_ich8lan(hw, 0); | |
3996 | if (ret_val) | |
3997 | goto release; | |
3998 | } | |
3999 | for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) { | |
bc7f75fa AK |
4000 | if (dev_spec->shadow_ram[i].modified) { |
4001 | data = dev_spec->shadow_ram[i].value; | |
4002 | } else { | |
e243455d | 4003 | ret_val = e1000_read_flash_word_ich8lan(hw, i + |
f0ff4398 BA |
4004 | old_bank_offset, |
4005 | &data); | |
e243455d BA |
4006 | if (ret_val) |
4007 | break; | |
bc7f75fa AK |
4008 | } |
4009 | ||
e921eb1a | 4010 | /* If the word is 0x13, then make sure the signature bits |
bc7f75fa AK |
4011 | * (15:14) are 11b until the commit has completed. |
4012 | * This will allow us to write 10b which indicates the | |
4013 | * signature is valid. We want to do this after the write | |
4014 | * has completed so that we don't mark the segment valid | |
ad68076e BA |
4015 | * while the write is still in progress |
4016 | */ | |
bc7f75fa AK |
4017 | if (i == E1000_ICH_NVM_SIG_WORD) |
4018 | data |= E1000_ICH_NVM_SIG_MASK; | |
4019 | ||
4020 | /* Convert offset to bytes. */ | |
4021 | act_offset = (i + new_bank_offset) << 1; | |
4022 | ||
ce43a216 | 4023 | usleep_range(100, 200); |
bc7f75fa AK |
4024 | /* Write the bytes to the new bank. */ |
4025 | ret_val = e1000_retry_write_flash_byte_ich8lan(hw, | |
4026 | act_offset, | |
4027 | (u8)data); | |
4028 | if (ret_val) | |
4029 | break; | |
4030 | ||
ce43a216 | 4031 | usleep_range(100, 200); |
bc7f75fa | 4032 | ret_val = e1000_retry_write_flash_byte_ich8lan(hw, |
f0ff4398 BA |
4033 | act_offset + 1, |
4034 | (u8)(data >> 8)); | |
bc7f75fa AK |
4035 | if (ret_val) |
4036 | break; | |
4037 | } | |
4038 | ||
e921eb1a | 4039 | /* Don't bother writing the segment valid bits if sector |
ad68076e BA |
4040 | * programming failed. |
4041 | */ | |
bc7f75fa | 4042 | if (ret_val) { |
4a770358 | 4043 | /* Possibly read-only, see e1000e_write_protect_nvm_ich8lan() */ |
3bb99fe2 | 4044 | e_dbg("Flash commit failed.\n"); |
9c5e209d | 4045 | goto release; |
bc7f75fa AK |
4046 | } |
4047 | ||
e921eb1a | 4048 | /* Finally validate the new segment by setting bit 15:14 |
bc7f75fa AK |
4049 | * to 10b in word 0x13 , this can be done without an |
4050 | * erase as well since these bits are 11 to start with | |
ad68076e BA |
4051 | * and we need to change bit 14 to 0b |
4052 | */ | |
bc7f75fa | 4053 | act_offset = new_bank_offset + E1000_ICH_NVM_SIG_WORD; |
e243455d | 4054 | ret_val = e1000_read_flash_word_ich8lan(hw, act_offset, &data); |
9c5e209d BA |
4055 | if (ret_val) |
4056 | goto release; | |
4057 | ||
bc7f75fa AK |
4058 | data &= 0xBFFF; |
4059 | ret_val = e1000_retry_write_flash_byte_ich8lan(hw, | |
4060 | act_offset * 2 + 1, | |
4061 | (u8)(data >> 8)); | |
9c5e209d BA |
4062 | if (ret_val) |
4063 | goto release; | |
bc7f75fa | 4064 | |
e921eb1a | 4065 | /* And invalidate the previously valid segment by setting |
bc7f75fa AK |
4066 | * its signature word (0x13) high_byte to 0b. This can be |
4067 | * done without an erase because flash erase sets all bits | |
ad68076e BA |
4068 | * to 1's. We can write 1's to 0's without an erase |
4069 | */ | |
bc7f75fa AK |
4070 | act_offset = (old_bank_offset + E1000_ICH_NVM_SIG_WORD) * 2 + 1; |
4071 | ret_val = e1000_retry_write_flash_byte_ich8lan(hw, act_offset, 0); | |
9c5e209d BA |
4072 | if (ret_val) |
4073 | goto release; | |
bc7f75fa AK |
4074 | |
4075 | /* Great! Everything worked, we can now clear the cached entries. */ | |
4076 | for (i = 0; i < E1000_ICH8_SHADOW_RAM_WORDS; i++) { | |
564ea9bb | 4077 | dev_spec->shadow_ram[i].modified = false; |
bc7f75fa AK |
4078 | dev_spec->shadow_ram[i].value = 0xFFFF; |
4079 | } | |
4080 | ||
9c5e209d | 4081 | release: |
94d8186a | 4082 | nvm->ops.release(hw); |
bc7f75fa | 4083 | |
e921eb1a | 4084 | /* Reload the EEPROM, or else modifications will not appear |
bc7f75fa AK |
4085 | * until after the next adapter reset. |
4086 | */ | |
9c5e209d | 4087 | if (!ret_val) { |
e85e3639 | 4088 | nvm->ops.reload(hw); |
ab6973ae | 4089 | usleep_range(10000, 11000); |
9c5e209d | 4090 | } |
bc7f75fa | 4091 | |
e243455d BA |
4092 | out: |
4093 | if (ret_val) | |
3bb99fe2 | 4094 | e_dbg("NVM update error: %d\n", ret_val); |
e243455d | 4095 | |
bc7f75fa AK |
4096 | return ret_val; |
4097 | } | |
4098 | ||
4099 | /** | |
4100 | * e1000_validate_nvm_checksum_ich8lan - Validate EEPROM checksum | |
4101 | * @hw: pointer to the HW structure | |
4102 | * | |
4103 | * Check to see if checksum needs to be fixed by reading bit 6 in word 0x19. | |
4104 | * If the bit is 0, that the EEPROM had been modified, but the checksum was not | |
4105 | * calculated, in which case we need to calculate the checksum and set bit 6. | |
4106 | **/ | |
4107 | static s32 e1000_validate_nvm_checksum_ich8lan(struct e1000_hw *hw) | |
4108 | { | |
4109 | s32 ret_val; | |
4110 | u16 data; | |
1cc7a3a1 BA |
4111 | u16 word; |
4112 | u16 valid_csum_mask; | |
bc7f75fa | 4113 | |
1cc7a3a1 BA |
4114 | /* Read NVM and check Invalid Image CSUM bit. If this bit is 0, |
4115 | * the checksum needs to be fixed. This bit is an indication that | |
4116 | * the NVM was prepared by OEM software and did not calculate | |
4117 | * the checksum...a likely scenario. | |
bc7f75fa | 4118 | */ |
1cc7a3a1 BA |
4119 | switch (hw->mac.type) { |
4120 | case e1000_pch_lpt: | |
79849ebc | 4121 | case e1000_pch_spt: |
c8744f44 | 4122 | case e1000_pch_cnp: |
fb776f5d | 4123 | case e1000_pch_tgp: |
59e46688 | 4124 | case e1000_pch_adp: |
cc23f4f0 | 4125 | case e1000_pch_mtp: |
1cc7a3a1 BA |
4126 | word = NVM_COMPAT; |
4127 | valid_csum_mask = NVM_COMPAT_VALID_CSUM; | |
4128 | break; | |
4129 | default: | |
4130 | word = NVM_FUTURE_INIT_WORD1; | |
4131 | valid_csum_mask = NVM_FUTURE_INIT_WORD1_VALID_CSUM; | |
4132 | break; | |
4133 | } | |
4134 | ||
4135 | ret_val = e1000_read_nvm(hw, word, 1, &data); | |
bc7f75fa AK |
4136 | if (ret_val) |
4137 | return ret_val; | |
4138 | ||
1cc7a3a1 | 4139 | if (!(data & valid_csum_mask)) { |
de79f442 SN |
4140 | e_dbg("NVM Checksum Invalid\n"); |
4141 | ||
4142 | if (hw->mac.type < e1000_pch_cnp) { | |
4143 | data |= valid_csum_mask; | |
4144 | ret_val = e1000_write_nvm(hw, word, 1, &data); | |
4145 | if (ret_val) | |
4146 | return ret_val; | |
4147 | ret_val = e1000e_update_nvm_checksum(hw); | |
4148 | if (ret_val) | |
4149 | return ret_val; | |
4150 | } | |
bc7f75fa AK |
4151 | } |
4152 | ||
4153 | return e1000e_validate_nvm_checksum_generic(hw); | |
4154 | } | |
4155 | ||
4a770358 BA |
4156 | /** |
4157 | * e1000e_write_protect_nvm_ich8lan - Make the NVM read-only | |
4158 | * @hw: pointer to the HW structure | |
4159 | * | |
4160 | * To prevent malicious write/erase of the NVM, set it to be read-only | |
4161 | * so that the hardware ignores all write/erase cycles of the NVM via | |
4162 | * the flash control registers. The shadow-ram copy of the NVM will | |
4163 | * still be updated, however any updates to this copy will not stick | |
4164 | * across driver reloads. | |
4165 | **/ | |
4166 | void e1000e_write_protect_nvm_ich8lan(struct e1000_hw *hw) | |
4167 | { | |
ca15df58 | 4168 | struct e1000_nvm_info *nvm = &hw->nvm; |
4a770358 BA |
4169 | union ich8_flash_protected_range pr0; |
4170 | union ich8_hws_flash_status hsfsts; | |
4171 | u32 gfpreg; | |
4a770358 | 4172 | |
94d8186a | 4173 | nvm->ops.acquire(hw); |
4a770358 BA |
4174 | |
4175 | gfpreg = er32flash(ICH_FLASH_GFPREG); | |
4176 | ||
4177 | /* Write-protect GbE Sector of NVM */ | |
4178 | pr0.regval = er32flash(ICH_FLASH_PR0); | |
4179 | pr0.range.base = gfpreg & FLASH_GFPREG_BASE_MASK; | |
4180 | pr0.range.limit = ((gfpreg >> 16) & FLASH_GFPREG_BASE_MASK); | |
4181 | pr0.range.wpe = true; | |
4182 | ew32flash(ICH_FLASH_PR0, pr0.regval); | |
4183 | ||
e921eb1a | 4184 | /* Lock down a subset of GbE Flash Control Registers, e.g. |
4a770358 BA |
4185 | * PR0 to prevent the write-protection from being lifted. |
4186 | * Once FLOCKDN is set, the registers protected by it cannot | |
4187 | * be written until FLOCKDN is cleared by a hardware reset. | |
4188 | */ | |
4189 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | |
4190 | hsfsts.hsf_status.flockdn = true; | |
4191 | ew32flash(ICH_FLASH_HSFSTS, hsfsts.regval); | |
4192 | ||
94d8186a | 4193 | nvm->ops.release(hw); |
4a770358 BA |
4194 | } |
4195 | ||
bc7f75fa AK |
4196 | /** |
4197 | * e1000_write_flash_data_ich8lan - Writes bytes to the NVM | |
4198 | * @hw: pointer to the HW structure | |
4199 | * @offset: The offset (in bytes) of the byte/word to read. | |
4200 | * @size: Size of data to read, 1=byte 2=word | |
4201 | * @data: The byte(s) to write to the NVM. | |
4202 | * | |
4203 | * Writes one/two bytes to the NVM using the flash access registers. | |
4204 | **/ | |
4205 | static s32 e1000_write_flash_data_ich8lan(struct e1000_hw *hw, u32 offset, | |
4206 | u8 size, u16 data) | |
4207 | { | |
4208 | union ich8_hws_flash_status hsfsts; | |
4209 | union ich8_hws_flash_ctrl hsflctl; | |
4210 | u32 flash_linear_addr; | |
4211 | u32 flash_data = 0; | |
4212 | s32 ret_val; | |
4213 | u8 count = 0; | |
4214 | ||
c8744f44 | 4215 | if (hw->mac.type >= e1000_pch_spt) { |
79849ebc DE |
4216 | if (size != 4 || offset > ICH_FLASH_LINEAR_ADDR_MASK) |
4217 | return -E1000_ERR_NVM; | |
4218 | } else { | |
4219 | if (size < 1 || size > 2 || offset > ICH_FLASH_LINEAR_ADDR_MASK) | |
4220 | return -E1000_ERR_NVM; | |
4221 | } | |
bc7f75fa | 4222 | |
f0ff4398 BA |
4223 | flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) + |
4224 | hw->nvm.flash_base_addr); | |
bc7f75fa AK |
4225 | |
4226 | do { | |
4227 | udelay(1); | |
4228 | /* Steps */ | |
4229 | ret_val = e1000_flash_cycle_init_ich8lan(hw); | |
4230 | if (ret_val) | |
4231 | break; | |
79849ebc DE |
4232 | /* In SPT, This register is in Lan memory space, not |
4233 | * flash. Therefore, only 32 bit access is supported | |
4234 | */ | |
c8744f44 | 4235 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
4236 | hsflctl.regval = er32flash(ICH_FLASH_HSFSTS) >> 16; |
4237 | else | |
4238 | hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); | |
bc7f75fa | 4239 | |
bc7f75fa | 4240 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ |
362e20ca | 4241 | hsflctl.hsf_ctrl.fldbcount = size - 1; |
bc7f75fa | 4242 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE; |
79849ebc DE |
4243 | /* In SPT, This register is in Lan memory space, |
4244 | * not flash. Therefore, only 32 bit access is | |
4245 | * supported | |
4246 | */ | |
c8744f44 | 4247 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
4248 | ew32flash(ICH_FLASH_HSFSTS, hsflctl.regval << 16); |
4249 | else | |
4250 | ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); | |
bc7f75fa AK |
4251 | |
4252 | ew32flash(ICH_FLASH_FADDR, flash_linear_addr); | |
4253 | ||
4254 | if (size == 1) | |
4255 | flash_data = (u32)data & 0x00FF; | |
4256 | else | |
4257 | flash_data = (u32)data; | |
4258 | ||
4259 | ew32flash(ICH_FLASH_FDATA0, flash_data); | |
4260 | ||
e921eb1a | 4261 | /* check if FCERR is set to 1 , if set to 1, clear it |
ad68076e BA |
4262 | * and try the whole sequence a few more times else done |
4263 | */ | |
17e813ec BA |
4264 | ret_val = |
4265 | e1000_flash_cycle_ich8lan(hw, | |
4266 | ICH_FLASH_WRITE_COMMAND_TIMEOUT); | |
bc7f75fa AK |
4267 | if (!ret_val) |
4268 | break; | |
4269 | ||
e921eb1a | 4270 | /* If we're here, then things are most likely |
bc7f75fa AK |
4271 | * completely hosed, but if the error condition |
4272 | * is detected, it won't hurt to give it another | |
4273 | * try...ICH_FLASH_CYCLE_REPEAT_COUNT times. | |
4274 | */ | |
4275 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | |
04499ec4 | 4276 | if (hsfsts.hsf_status.flcerr) |
bc7f75fa AK |
4277 | /* Repeat for some time before giving up. */ |
4278 | continue; | |
04499ec4 | 4279 | if (!hsfsts.hsf_status.flcdone) { |
434f1392 | 4280 | e_dbg("Timeout error - flash cycle did not complete.\n"); |
bc7f75fa AK |
4281 | break; |
4282 | } | |
4283 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); | |
4284 | ||
4285 | return ret_val; | |
4286 | } | |
4287 | ||
79849ebc DE |
4288 | /** |
4289 | * e1000_write_flash_data32_ich8lan - Writes 4 bytes to the NVM | |
4290 | * @hw: pointer to the HW structure | |
4291 | * @offset: The offset (in bytes) of the dwords to read. | |
4292 | * @data: The 4 bytes to write to the NVM. | |
4293 | * | |
4294 | * Writes one/two/four bytes to the NVM using the flash access registers. | |
4295 | **/ | |
4296 | static s32 e1000_write_flash_data32_ich8lan(struct e1000_hw *hw, u32 offset, | |
4297 | u32 data) | |
4298 | { | |
4299 | union ich8_hws_flash_status hsfsts; | |
4300 | union ich8_hws_flash_ctrl hsflctl; | |
4301 | u32 flash_linear_addr; | |
4302 | s32 ret_val; | |
4303 | u8 count = 0; | |
4304 | ||
c8744f44 | 4305 | if (hw->mac.type >= e1000_pch_spt) { |
79849ebc DE |
4306 | if (offset > ICH_FLASH_LINEAR_ADDR_MASK) |
4307 | return -E1000_ERR_NVM; | |
4308 | } | |
4309 | flash_linear_addr = ((ICH_FLASH_LINEAR_ADDR_MASK & offset) + | |
4310 | hw->nvm.flash_base_addr); | |
4311 | do { | |
4312 | udelay(1); | |
4313 | /* Steps */ | |
4314 | ret_val = e1000_flash_cycle_init_ich8lan(hw); | |
4315 | if (ret_val) | |
4316 | break; | |
4317 | ||
4318 | /* In SPT, This register is in Lan memory space, not | |
4319 | * flash. Therefore, only 32 bit access is supported | |
4320 | */ | |
c8744f44 | 4321 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
4322 | hsflctl.regval = er32flash(ICH_FLASH_HSFSTS) |
4323 | >> 16; | |
4324 | else | |
4325 | hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); | |
4326 | ||
4327 | hsflctl.hsf_ctrl.fldbcount = sizeof(u32) - 1; | |
4328 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE; | |
4329 | ||
4330 | /* In SPT, This register is in Lan memory space, | |
4331 | * not flash. Therefore, only 32 bit access is | |
4332 | * supported | |
4333 | */ | |
c8744f44 | 4334 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
4335 | ew32flash(ICH_FLASH_HSFSTS, hsflctl.regval << 16); |
4336 | else | |
4337 | ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); | |
4338 | ||
4339 | ew32flash(ICH_FLASH_FADDR, flash_linear_addr); | |
4340 | ||
4341 | ew32flash(ICH_FLASH_FDATA0, data); | |
4342 | ||
4343 | /* check if FCERR is set to 1 , if set to 1, clear it | |
4344 | * and try the whole sequence a few more times else done | |
4345 | */ | |
4346 | ret_val = | |
4347 | e1000_flash_cycle_ich8lan(hw, | |
4348 | ICH_FLASH_WRITE_COMMAND_TIMEOUT); | |
4349 | ||
4350 | if (!ret_val) | |
4351 | break; | |
4352 | ||
4353 | /* If we're here, then things are most likely | |
4354 | * completely hosed, but if the error condition | |
4355 | * is detected, it won't hurt to give it another | |
4356 | * try...ICH_FLASH_CYCLE_REPEAT_COUNT times. | |
4357 | */ | |
4358 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | |
4359 | ||
4360 | if (hsfsts.hsf_status.flcerr) | |
4361 | /* Repeat for some time before giving up. */ | |
4362 | continue; | |
4363 | if (!hsfsts.hsf_status.flcdone) { | |
4364 | e_dbg("Timeout error - flash cycle did not complete.\n"); | |
4365 | break; | |
4366 | } | |
4367 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); | |
4368 | ||
4369 | return ret_val; | |
4370 | } | |
4371 | ||
bc7f75fa AK |
4372 | /** |
4373 | * e1000_write_flash_byte_ich8lan - Write a single byte to NVM | |
4374 | * @hw: pointer to the HW structure | |
4375 | * @offset: The index of the byte to read. | |
4376 | * @data: The byte to write to the NVM. | |
4377 | * | |
4378 | * Writes a single byte to the NVM using the flash access registers. | |
4379 | **/ | |
4380 | static s32 e1000_write_flash_byte_ich8lan(struct e1000_hw *hw, u32 offset, | |
4381 | u8 data) | |
4382 | { | |
4383 | u16 word = (u16)data; | |
4384 | ||
4385 | return e1000_write_flash_data_ich8lan(hw, offset, 1, word); | |
4386 | } | |
4387 | ||
79849ebc DE |
4388 | /** |
4389 | * e1000_retry_write_flash_dword_ich8lan - Writes a dword to NVM | |
4390 | * @hw: pointer to the HW structure | |
4391 | * @offset: The offset of the word to write. | |
4392 | * @dword: The dword to write to the NVM. | |
4393 | * | |
4394 | * Writes a single dword to the NVM using the flash access registers. | |
4395 | * Goes through a retry algorithm before giving up. | |
4396 | **/ | |
4397 | static s32 e1000_retry_write_flash_dword_ich8lan(struct e1000_hw *hw, | |
4398 | u32 offset, u32 dword) | |
4399 | { | |
4400 | s32 ret_val; | |
4401 | u16 program_retries; | |
4402 | ||
4403 | /* Must convert word offset into bytes. */ | |
4404 | offset <<= 1; | |
4405 | ret_val = e1000_write_flash_data32_ich8lan(hw, offset, dword); | |
4406 | ||
4407 | if (!ret_val) | |
4408 | return ret_val; | |
4409 | for (program_retries = 0; program_retries < 100; program_retries++) { | |
4410 | e_dbg("Retrying Byte %8.8X at offset %u\n", dword, offset); | |
4411 | usleep_range(100, 200); | |
4412 | ret_val = e1000_write_flash_data32_ich8lan(hw, offset, dword); | |
4413 | if (!ret_val) | |
4414 | break; | |
4415 | } | |
4416 | if (program_retries == 100) | |
4417 | return -E1000_ERR_NVM; | |
4418 | ||
4419 | return 0; | |
4420 | } | |
4421 | ||
bc7f75fa AK |
4422 | /** |
4423 | * e1000_retry_write_flash_byte_ich8lan - Writes a single byte to NVM | |
4424 | * @hw: pointer to the HW structure | |
4425 | * @offset: The offset of the byte to write. | |
4426 | * @byte: The byte to write to the NVM. | |
4427 | * | |
4428 | * Writes a single byte to the NVM using the flash access registers. | |
4429 | * Goes through a retry algorithm before giving up. | |
4430 | **/ | |
4431 | static s32 e1000_retry_write_flash_byte_ich8lan(struct e1000_hw *hw, | |
4432 | u32 offset, u8 byte) | |
4433 | { | |
4434 | s32 ret_val; | |
4435 | u16 program_retries; | |
4436 | ||
4437 | ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte); | |
4438 | if (!ret_val) | |
4439 | return ret_val; | |
4440 | ||
4441 | for (program_retries = 0; program_retries < 100; program_retries++) { | |
3bb99fe2 | 4442 | e_dbg("Retrying Byte %2.2X at offset %u\n", byte, offset); |
ce43a216 | 4443 | usleep_range(100, 200); |
bc7f75fa AK |
4444 | ret_val = e1000_write_flash_byte_ich8lan(hw, offset, byte); |
4445 | if (!ret_val) | |
4446 | break; | |
4447 | } | |
4448 | if (program_retries == 100) | |
4449 | return -E1000_ERR_NVM; | |
4450 | ||
4451 | return 0; | |
4452 | } | |
4453 | ||
4454 | /** | |
4455 | * e1000_erase_flash_bank_ich8lan - Erase a bank (4k) from NVM | |
4456 | * @hw: pointer to the HW structure | |
4457 | * @bank: 0 for first bank, 1 for second bank, etc. | |
4458 | * | |
4459 | * Erases the bank specified. Each bank is a 4k block. Banks are 0 based. | |
4460 | * bank N is 4096 * N + flash_reg_addr. | |
4461 | **/ | |
4462 | static s32 e1000_erase_flash_bank_ich8lan(struct e1000_hw *hw, u32 bank) | |
4463 | { | |
4464 | struct e1000_nvm_info *nvm = &hw->nvm; | |
4465 | union ich8_hws_flash_status hsfsts; | |
4466 | union ich8_hws_flash_ctrl hsflctl; | |
4467 | u32 flash_linear_addr; | |
4468 | /* bank size is in 16bit words - adjust to bytes */ | |
4469 | u32 flash_bank_size = nvm->flash_bank_size * 2; | |
4470 | s32 ret_val; | |
4471 | s32 count = 0; | |
a708dd88 | 4472 | s32 j, iteration, sector_size; |
bc7f75fa AK |
4473 | |
4474 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); | |
4475 | ||
e921eb1a | 4476 | /* Determine HW Sector size: Read BERASE bits of hw flash status |
ad68076e BA |
4477 | * register |
4478 | * 00: The Hw sector is 256 bytes, hence we need to erase 16 | |
bc7f75fa AK |
4479 | * consecutive sectors. The start index for the nth Hw sector |
4480 | * can be calculated as = bank * 4096 + n * 256 | |
4481 | * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector. | |
4482 | * The start index for the nth Hw sector can be calculated | |
4483 | * as = bank * 4096 | |
4484 | * 10: The Hw sector is 8K bytes, nth sector = bank * 8192 | |
4485 | * (ich9 only, otherwise error condition) | |
4486 | * 11: The Hw sector is 64K bytes, nth sector = bank * 65536 | |
4487 | */ | |
4488 | switch (hsfsts.hsf_status.berasesz) { | |
4489 | case 0: | |
4490 | /* Hw sector size 256 */ | |
4491 | sector_size = ICH_FLASH_SEG_SIZE_256; | |
4492 | iteration = flash_bank_size / ICH_FLASH_SEG_SIZE_256; | |
4493 | break; | |
4494 | case 1: | |
4495 | sector_size = ICH_FLASH_SEG_SIZE_4K; | |
28c9195a | 4496 | iteration = 1; |
bc7f75fa AK |
4497 | break; |
4498 | case 2: | |
148675a7 BA |
4499 | sector_size = ICH_FLASH_SEG_SIZE_8K; |
4500 | iteration = 1; | |
bc7f75fa AK |
4501 | break; |
4502 | case 3: | |
4503 | sector_size = ICH_FLASH_SEG_SIZE_64K; | |
28c9195a | 4504 | iteration = 1; |
bc7f75fa AK |
4505 | break; |
4506 | default: | |
4507 | return -E1000_ERR_NVM; | |
4508 | } | |
4509 | ||
4510 | /* Start with the base address, then add the sector offset. */ | |
4511 | flash_linear_addr = hw->nvm.flash_base_addr; | |
148675a7 | 4512 | flash_linear_addr += (bank) ? flash_bank_size : 0; |
bc7f75fa | 4513 | |
53aa82da | 4514 | for (j = 0; j < iteration; j++) { |
bc7f75fa | 4515 | do { |
17e813ec BA |
4516 | u32 timeout = ICH_FLASH_ERASE_COMMAND_TIMEOUT; |
4517 | ||
bc7f75fa AK |
4518 | /* Steps */ |
4519 | ret_val = e1000_flash_cycle_init_ich8lan(hw); | |
4520 | if (ret_val) | |
4521 | return ret_val; | |
4522 | ||
e921eb1a | 4523 | /* Write a value 11 (block Erase) in Flash |
ad68076e BA |
4524 | * Cycle field in hw flash control |
4525 | */ | |
c8744f44 | 4526 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
4527 | hsflctl.regval = |
4528 | er32flash(ICH_FLASH_HSFSTS) >> 16; | |
4529 | else | |
4530 | hsflctl.regval = er16flash(ICH_FLASH_HSFCTL); | |
4531 | ||
bc7f75fa | 4532 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE; |
c8744f44 | 4533 | if (hw->mac.type >= e1000_pch_spt) |
79849ebc DE |
4534 | ew32flash(ICH_FLASH_HSFSTS, |
4535 | hsflctl.regval << 16); | |
4536 | else | |
4537 | ew16flash(ICH_FLASH_HSFCTL, hsflctl.regval); | |
bc7f75fa | 4538 | |
e921eb1a | 4539 | /* Write the last 24 bits of an index within the |
bc7f75fa AK |
4540 | * block into Flash Linear address field in Flash |
4541 | * Address. | |
4542 | */ | |
4543 | flash_linear_addr += (j * sector_size); | |
4544 | ew32flash(ICH_FLASH_FADDR, flash_linear_addr); | |
4545 | ||
17e813ec | 4546 | ret_val = e1000_flash_cycle_ich8lan(hw, timeout); |
9e2d7657 | 4547 | if (!ret_val) |
bc7f75fa AK |
4548 | break; |
4549 | ||
e921eb1a | 4550 | /* Check if FCERR is set to 1. If 1, |
bc7f75fa | 4551 | * clear it and try the whole sequence |
ad68076e BA |
4552 | * a few more times else Done |
4553 | */ | |
bc7f75fa | 4554 | hsfsts.regval = er16flash(ICH_FLASH_HSFSTS); |
04499ec4 | 4555 | if (hsfsts.hsf_status.flcerr) |
ad68076e | 4556 | /* repeat for some time before giving up */ |
bc7f75fa | 4557 | continue; |
04499ec4 | 4558 | else if (!hsfsts.hsf_status.flcdone) |
bc7f75fa AK |
4559 | return ret_val; |
4560 | } while (++count < ICH_FLASH_CYCLE_REPEAT_COUNT); | |
4561 | } | |
4562 | ||
4563 | return 0; | |
4564 | } | |
4565 | ||
4566 | /** | |
4567 | * e1000_valid_led_default_ich8lan - Set the default LED settings | |
4568 | * @hw: pointer to the HW structure | |
4569 | * @data: Pointer to the LED settings | |
4570 | * | |
4571 | * Reads the LED default settings from the NVM to data. If the NVM LED | |
4572 | * settings is all 0's or F's, set the LED default to a valid LED default | |
4573 | * setting. | |
4574 | **/ | |
4575 | static s32 e1000_valid_led_default_ich8lan(struct e1000_hw *hw, u16 *data) | |
4576 | { | |
4577 | s32 ret_val; | |
4578 | ||
4579 | ret_val = e1000_read_nvm(hw, NVM_ID_LED_SETTINGS, 1, data); | |
4580 | if (ret_val) { | |
3bb99fe2 | 4581 | e_dbg("NVM Read Error\n"); |
bc7f75fa AK |
4582 | return ret_val; |
4583 | } | |
4584 | ||
e5fe2541 | 4585 | if (*data == ID_LED_RESERVED_0000 || *data == ID_LED_RESERVED_FFFF) |
bc7f75fa AK |
4586 | *data = ID_LED_DEFAULT_ICH8LAN; |
4587 | ||
4588 | return 0; | |
4589 | } | |
4590 | ||
a4f58f54 BA |
4591 | /** |
4592 | * e1000_id_led_init_pchlan - store LED configurations | |
4593 | * @hw: pointer to the HW structure | |
4594 | * | |
4595 | * PCH does not control LEDs via the LEDCTL register, rather it uses | |
4596 | * the PHY LED configuration register. | |
4597 | * | |
4598 | * PCH also does not have an "always on" or "always off" mode which | |
4599 | * complicates the ID feature. Instead of using the "on" mode to indicate | |
d1964eb1 | 4600 | * in ledctl_mode2 the LEDs to use for ID (see e1000e_id_led_init_generic()), |
a4f58f54 BA |
4601 | * use "link_up" mode. The LEDs will still ID on request if there is no |
4602 | * link based on logic in e1000_led_[on|off]_pchlan(). | |
4603 | **/ | |
4604 | static s32 e1000_id_led_init_pchlan(struct e1000_hw *hw) | |
4605 | { | |
4606 | struct e1000_mac_info *mac = &hw->mac; | |
4607 | s32 ret_val; | |
4608 | const u32 ledctl_on = E1000_LEDCTL_MODE_LINK_UP; | |
4609 | const u32 ledctl_off = E1000_LEDCTL_MODE_LINK_UP | E1000_PHY_LED0_IVRT; | |
4610 | u16 data, i, temp, shift; | |
4611 | ||
4612 | /* Get default ID LED modes */ | |
4613 | ret_val = hw->nvm.ops.valid_led_default(hw, &data); | |
4614 | if (ret_val) | |
5015e53a | 4615 | return ret_val; |
a4f58f54 BA |
4616 | |
4617 | mac->ledctl_default = er32(LEDCTL); | |
4618 | mac->ledctl_mode1 = mac->ledctl_default; | |
4619 | mac->ledctl_mode2 = mac->ledctl_default; | |
4620 | ||
4621 | for (i = 0; i < 4; i++) { | |
4622 | temp = (data >> (i << 2)) & E1000_LEDCTL_LED0_MODE_MASK; | |
4623 | shift = (i * 5); | |
4624 | switch (temp) { | |
4625 | case ID_LED_ON1_DEF2: | |
4626 | case ID_LED_ON1_ON2: | |
4627 | case ID_LED_ON1_OFF2: | |
4628 | mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift); | |
4629 | mac->ledctl_mode1 |= (ledctl_on << shift); | |
4630 | break; | |
4631 | case ID_LED_OFF1_DEF2: | |
4632 | case ID_LED_OFF1_ON2: | |
4633 | case ID_LED_OFF1_OFF2: | |
4634 | mac->ledctl_mode1 &= ~(E1000_PHY_LED0_MASK << shift); | |
4635 | mac->ledctl_mode1 |= (ledctl_off << shift); | |
4636 | break; | |
4637 | default: | |
4638 | /* Do nothing */ | |
4639 | break; | |
4640 | } | |
4641 | switch (temp) { | |
4642 | case ID_LED_DEF1_ON2: | |
4643 | case ID_LED_ON1_ON2: | |
4644 | case ID_LED_OFF1_ON2: | |
4645 | mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift); | |
4646 | mac->ledctl_mode2 |= (ledctl_on << shift); | |
4647 | break; | |
4648 | case ID_LED_DEF1_OFF2: | |
4649 | case ID_LED_ON1_OFF2: | |
4650 | case ID_LED_OFF1_OFF2: | |
4651 | mac->ledctl_mode2 &= ~(E1000_PHY_LED0_MASK << shift); | |
4652 | mac->ledctl_mode2 |= (ledctl_off << shift); | |
4653 | break; | |
4654 | default: | |
4655 | /* Do nothing */ | |
4656 | break; | |
4657 | } | |
4658 | } | |
4659 | ||
5015e53a | 4660 | return 0; |
a4f58f54 BA |
4661 | } |
4662 | ||
bc7f75fa AK |
4663 | /** |
4664 | * e1000_get_bus_info_ich8lan - Get/Set the bus type and width | |
4665 | * @hw: pointer to the HW structure | |
4666 | * | |
4667 | * ICH8 use the PCI Express bus, but does not contain a PCI Express Capability | |
4668 | * register, so the the bus width is hard coded. | |
4669 | **/ | |
4670 | static s32 e1000_get_bus_info_ich8lan(struct e1000_hw *hw) | |
4671 | { | |
4672 | struct e1000_bus_info *bus = &hw->bus; | |
4673 | s32 ret_val; | |
4674 | ||
4675 | ret_val = e1000e_get_bus_info_pcie(hw); | |
4676 | ||
e921eb1a | 4677 | /* ICH devices are "PCI Express"-ish. They have |
bc7f75fa AK |
4678 | * a configuration space, but do not contain |
4679 | * PCI Express Capability registers, so bus width | |
4680 | * must be hardcoded. | |
4681 | */ | |
4682 | if (bus->width == e1000_bus_width_unknown) | |
4683 | bus->width = e1000_bus_width_pcie_x1; | |
4684 | ||
4685 | return ret_val; | |
4686 | } | |
4687 | ||
4688 | /** | |
4689 | * e1000_reset_hw_ich8lan - Reset the hardware | |
4690 | * @hw: pointer to the HW structure | |
4691 | * | |
4692 | * Does a full reset of the hardware which includes a reset of the PHY and | |
4693 | * MAC. | |
4694 | **/ | |
4695 | static s32 e1000_reset_hw_ich8lan(struct e1000_hw *hw) | |
4696 | { | |
1d5846b9 | 4697 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; |
62bc813e BA |
4698 | u16 kum_cfg; |
4699 | u32 ctrl, reg; | |
bc7f75fa AK |
4700 | s32 ret_val; |
4701 | ||
e921eb1a | 4702 | /* Prevent the PCI-E bus from sticking if there is no TLP connection |
bc7f75fa AK |
4703 | * on the last TLP read/write transaction when MAC is reset. |
4704 | */ | |
4705 | ret_val = e1000e_disable_pcie_master(hw); | |
e98cac44 | 4706 | if (ret_val) |
3bb99fe2 | 4707 | e_dbg("PCI-E Master disable polling has failed.\n"); |
bc7f75fa | 4708 | |
3bb99fe2 | 4709 | e_dbg("Masking off all interrupts\n"); |
bc7f75fa AK |
4710 | ew32(IMC, 0xffffffff); |
4711 | ||
e921eb1a | 4712 | /* Disable the Transmit and Receive units. Then delay to allow |
bc7f75fa AK |
4713 | * any pending transactions to complete before we hit the MAC |
4714 | * with the global reset. | |
4715 | */ | |
4716 | ew32(RCTL, 0); | |
4717 | ew32(TCTL, E1000_TCTL_PSP); | |
4718 | e1e_flush(); | |
4719 | ||
ab6973ae | 4720 | usleep_range(10000, 11000); |
bc7f75fa AK |
4721 | |
4722 | /* Workaround for ICH8 bit corruption issue in FIFO memory */ | |
4723 | if (hw->mac.type == e1000_ich8lan) { | |
4724 | /* Set Tx and Rx buffer allocation to 8k apiece. */ | |
4725 | ew32(PBA, E1000_PBA_8K); | |
4726 | /* Set Packet Buffer Size to 16k. */ | |
4727 | ew32(PBS, E1000_PBS_16K); | |
4728 | } | |
4729 | ||
1d5846b9 | 4730 | if (hw->mac.type == e1000_pchlan) { |
62bc813e BA |
4731 | /* Save the NVM K1 bit setting */ |
4732 | ret_val = e1000_read_nvm(hw, E1000_NVM_K1_CONFIG, 1, &kum_cfg); | |
1d5846b9 BA |
4733 | if (ret_val) |
4734 | return ret_val; | |
4735 | ||
62bc813e | 4736 | if (kum_cfg & E1000_NVM_K1_ENABLE) |
1d5846b9 BA |
4737 | dev_spec->nvm_k1_enabled = true; |
4738 | else | |
4739 | dev_spec->nvm_k1_enabled = false; | |
4740 | } | |
4741 | ||
bc7f75fa AK |
4742 | ctrl = er32(CTRL); |
4743 | ||
44abd5c1 | 4744 | if (!hw->phy.ops.check_reset_block(hw)) { |
e921eb1a | 4745 | /* Full-chip reset requires MAC and PHY reset at the same |
bc7f75fa AK |
4746 | * time to make sure the interface between MAC and the |
4747 | * external PHY is reset. | |
4748 | */ | |
4749 | ctrl |= E1000_CTRL_PHY_RST; | |
605c82ba | 4750 | |
e921eb1a | 4751 | /* Gate automatic PHY configuration by hardware on |
605c82ba BA |
4752 | * non-managed 82579 |
4753 | */ | |
4754 | if ((hw->mac.type == e1000_pch2lan) && | |
4755 | !(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) | |
4756 | e1000_gate_hw_phy_config_ich8lan(hw, true); | |
bc7f75fa AK |
4757 | } |
4758 | ret_val = e1000_acquire_swflag_ich8lan(hw); | |
3bb99fe2 | 4759 | e_dbg("Issuing a global reset to ich8lan\n"); |
bc7f75fa | 4760 | ew32(CTRL, (ctrl | E1000_CTRL_RST)); |
945a5151 | 4761 | /* cannot issue a flush here because it hangs the hardware */ |
bc7f75fa AK |
4762 | msleep(20); |
4763 | ||
62bc813e BA |
4764 | /* Set Phy Config Counter to 50msec */ |
4765 | if (hw->mac.type == e1000_pch2lan) { | |
4766 | reg = er32(FEXTNVM3); | |
4767 | reg &= ~E1000_FEXTNVM3_PHY_CFG_COUNTER_MASK; | |
4768 | reg |= E1000_FEXTNVM3_PHY_CFG_COUNTER_50MSEC; | |
4769 | ew32(FEXTNVM3, reg); | |
4770 | } | |
4771 | ||
fc0c7760 | 4772 | if (!ret_val) |
a90b412c | 4773 | clear_bit(__E1000_ACCESS_SHARED_RESOURCE, &hw->adapter->state); |
37f40239 | 4774 | |
e98cac44 | 4775 | if (ctrl & E1000_CTRL_PHY_RST) { |
fc0c7760 | 4776 | ret_val = hw->phy.ops.get_cfg_done(hw); |
e98cac44 | 4777 | if (ret_val) |
5015e53a | 4778 | return ret_val; |
fc0c7760 | 4779 | |
e98cac44 | 4780 | ret_val = e1000_post_phy_reset_ich8lan(hw); |
f523d211 | 4781 | if (ret_val) |
5015e53a | 4782 | return ret_val; |
f523d211 | 4783 | } |
e98cac44 | 4784 | |
e921eb1a | 4785 | /* For PCH, this write will make sure that any noise |
7d3cabbc BA |
4786 | * will be detected as a CRC error and be dropped rather than show up |
4787 | * as a bad packet to the DMA engine. | |
4788 | */ | |
4789 | if (hw->mac.type == e1000_pchlan) | |
4790 | ew32(CRC_OFFSET, 0x65656565); | |
4791 | ||
bc7f75fa | 4792 | ew32(IMC, 0xffffffff); |
dd93f95e | 4793 | er32(ICR); |
bc7f75fa | 4794 | |
62bc813e BA |
4795 | reg = er32(KABGTXD); |
4796 | reg |= E1000_KABGTXD_BGSQLBIAS; | |
4797 | ew32(KABGTXD, reg); | |
bc7f75fa | 4798 | |
5015e53a | 4799 | return 0; |
bc7f75fa AK |
4800 | } |
4801 | ||
4802 | /** | |
4803 | * e1000_init_hw_ich8lan - Initialize the hardware | |
4804 | * @hw: pointer to the HW structure | |
4805 | * | |
4806 | * Prepares the hardware for transmit and receive by doing the following: | |
4807 | * - initialize hardware bits | |
4808 | * - initialize LED identification | |
4809 | * - setup receive address registers | |
4810 | * - setup flow control | |
489815ce | 4811 | * - setup transmit descriptors |
bc7f75fa AK |
4812 | * - clear statistics |
4813 | **/ | |
4814 | static s32 e1000_init_hw_ich8lan(struct e1000_hw *hw) | |
4815 | { | |
4816 | struct e1000_mac_info *mac = &hw->mac; | |
4817 | u32 ctrl_ext, txdctl, snoop; | |
4818 | s32 ret_val; | |
4819 | u16 i; | |
4820 | ||
4821 | e1000_initialize_hw_bits_ich8lan(hw); | |
4822 | ||
4823 | /* Initialize identification LED */ | |
a4f58f54 | 4824 | ret_val = mac->ops.id_led_init(hw); |
33550cec | 4825 | /* An error is not fatal and we should not stop init due to this */ |
de39b752 | 4826 | if (ret_val) |
3bb99fe2 | 4827 | e_dbg("Error initializing identification LED\n"); |
bc7f75fa AK |
4828 | |
4829 | /* Setup the receive address. */ | |
4830 | e1000e_init_rx_addrs(hw, mac->rar_entry_count); | |
4831 | ||
4832 | /* Zero out the Multicast HASH table */ | |
3bb99fe2 | 4833 | e_dbg("Zeroing the MTA\n"); |
bc7f75fa AK |
4834 | for (i = 0; i < mac->mta_reg_count; i++) |
4835 | E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0); | |
4836 | ||
e921eb1a | 4837 | /* The 82578 Rx buffer will stall if wakeup is enabled in host and |
3ebfc7c9 | 4838 | * the ME. Disable wakeup by clearing the host wakeup bit. |
fc0c7760 BA |
4839 | * Reset the phy after disabling host wakeup to reset the Rx buffer. |
4840 | */ | |
4841 | if (hw->phy.type == e1000_phy_82578) { | |
3ebfc7c9 BA |
4842 | e1e_rphy(hw, BM_PORT_GEN_CFG, &i); |
4843 | i &= ~BM_WUC_HOST_WU_BIT; | |
4844 | e1e_wphy(hw, BM_PORT_GEN_CFG, i); | |
fc0c7760 BA |
4845 | ret_val = e1000_phy_hw_reset_ich8lan(hw); |
4846 | if (ret_val) | |
4847 | return ret_val; | |
4848 | } | |
4849 | ||
bc7f75fa | 4850 | /* Setup link and flow control */ |
1a46b40f | 4851 | ret_val = mac->ops.setup_link(hw); |
bc7f75fa AK |
4852 | |
4853 | /* Set the transmit descriptor write-back policy for both queues */ | |
e9ec2c0f | 4854 | txdctl = er32(TXDCTL(0)); |
f0ff4398 BA |
4855 | txdctl = ((txdctl & ~E1000_TXDCTL_WTHRESH) | |
4856 | E1000_TXDCTL_FULL_TX_DESC_WB); | |
4857 | txdctl = ((txdctl & ~E1000_TXDCTL_PTHRESH) | | |
4858 | E1000_TXDCTL_MAX_TX_DESC_PREFETCH); | |
e9ec2c0f JK |
4859 | ew32(TXDCTL(0), txdctl); |
4860 | txdctl = er32(TXDCTL(1)); | |
f0ff4398 BA |
4861 | txdctl = ((txdctl & ~E1000_TXDCTL_WTHRESH) | |
4862 | E1000_TXDCTL_FULL_TX_DESC_WB); | |
4863 | txdctl = ((txdctl & ~E1000_TXDCTL_PTHRESH) | | |
4864 | E1000_TXDCTL_MAX_TX_DESC_PREFETCH); | |
e9ec2c0f | 4865 | ew32(TXDCTL(1), txdctl); |
bc7f75fa | 4866 | |
e921eb1a | 4867 | /* ICH8 has opposite polarity of no_snoop bits. |
ad68076e BA |
4868 | * By default, we should use snoop behavior. |
4869 | */ | |
bc7f75fa AK |
4870 | if (mac->type == e1000_ich8lan) |
4871 | snoop = PCIE_ICH8_SNOOP_ALL; | |
4872 | else | |
53aa82da | 4873 | snoop = (u32)~(PCIE_NO_SNOOP_ALL); |
bc7f75fa AK |
4874 | e1000e_set_pcie_no_snoop(hw, snoop); |
4875 | ||
4876 | ctrl_ext = er32(CTRL_EXT); | |
4877 | ctrl_ext |= E1000_CTRL_EXT_RO_DIS; | |
4878 | ew32(CTRL_EXT, ctrl_ext); | |
4879 | ||
e921eb1a | 4880 | /* Clear all of the statistics registers (clear on read). It is |
bc7f75fa AK |
4881 | * important that we do this after we have tried to establish link |
4882 | * because the symbol error count will increment wildly if there | |
4883 | * is no link. | |
4884 | */ | |
4885 | e1000_clear_hw_cntrs_ich8lan(hw); | |
4886 | ||
e561a705 | 4887 | return ret_val; |
bc7f75fa | 4888 | } |
fc830b78 | 4889 | |
bc7f75fa AK |
4890 | /** |
4891 | * e1000_initialize_hw_bits_ich8lan - Initialize required hardware bits | |
4892 | * @hw: pointer to the HW structure | |
4893 | * | |
4894 | * Sets/Clears required hardware bits necessary for correctly setting up the | |
4895 | * hardware for transmit and receive. | |
4896 | **/ | |
4897 | static void e1000_initialize_hw_bits_ich8lan(struct e1000_hw *hw) | |
4898 | { | |
4899 | u32 reg; | |
4900 | ||
4901 | /* Extended Device Control */ | |
4902 | reg = er32(CTRL_EXT); | |
18dd2392 | 4903 | reg |= BIT(22); |
a4f58f54 BA |
4904 | /* Enable PHY low-power state when MAC is at D3 w/o WoL */ |
4905 | if (hw->mac.type >= e1000_pchlan) | |
4906 | reg |= E1000_CTRL_EXT_PHYPDEN; | |
bc7f75fa AK |
4907 | ew32(CTRL_EXT, reg); |
4908 | ||
4909 | /* Transmit Descriptor Control 0 */ | |
e9ec2c0f | 4910 | reg = er32(TXDCTL(0)); |
18dd2392 | 4911 | reg |= BIT(22); |
e9ec2c0f | 4912 | ew32(TXDCTL(0), reg); |
bc7f75fa AK |
4913 | |
4914 | /* Transmit Descriptor Control 1 */ | |
e9ec2c0f | 4915 | reg = er32(TXDCTL(1)); |
18dd2392 | 4916 | reg |= BIT(22); |
e9ec2c0f | 4917 | ew32(TXDCTL(1), reg); |
bc7f75fa AK |
4918 | |
4919 | /* Transmit Arbitration Control 0 */ | |
e9ec2c0f | 4920 | reg = er32(TARC(0)); |
bc7f75fa | 4921 | if (hw->mac.type == e1000_ich8lan) |
18dd2392 JK |
4922 | reg |= BIT(28) | BIT(29); |
4923 | reg |= BIT(23) | BIT(24) | BIT(26) | BIT(27); | |
e9ec2c0f | 4924 | ew32(TARC(0), reg); |
bc7f75fa AK |
4925 | |
4926 | /* Transmit Arbitration Control 1 */ | |
e9ec2c0f | 4927 | reg = er32(TARC(1)); |
bc7f75fa | 4928 | if (er32(TCTL) & E1000_TCTL_MULR) |
18dd2392 | 4929 | reg &= ~BIT(28); |
bc7f75fa | 4930 | else |
18dd2392 JK |
4931 | reg |= BIT(28); |
4932 | reg |= BIT(24) | BIT(26) | BIT(30); | |
e9ec2c0f | 4933 | ew32(TARC(1), reg); |
bc7f75fa AK |
4934 | |
4935 | /* Device Status */ | |
4936 | if (hw->mac.type == e1000_ich8lan) { | |
4937 | reg = er32(STATUS); | |
18dd2392 | 4938 | reg &= ~BIT(31); |
bc7f75fa AK |
4939 | ew32(STATUS, reg); |
4940 | } | |
a80483d3 | 4941 | |
e921eb1a | 4942 | /* work-around descriptor data corruption issue during nfs v2 udp |
a80483d3 JB |
4943 | * traffic, just disable the nfs filtering capability |
4944 | */ | |
4945 | reg = er32(RFCTL); | |
4946 | reg |= (E1000_RFCTL_NFSW_DIS | E1000_RFCTL_NFSR_DIS); | |
f6bd5577 | 4947 | |
e921eb1a | 4948 | /* Disable IPv6 extension header parsing because some malformed |
f6bd5577 MV |
4949 | * IPv6 headers can hang the Rx. |
4950 | */ | |
4951 | if (hw->mac.type == e1000_ich8lan) | |
4952 | reg |= (E1000_RFCTL_IPV6_EX_DIS | E1000_RFCTL_NEW_IPV6_EXT_DIS); | |
a80483d3 | 4953 | ew32(RFCTL, reg); |
94fb848b BA |
4954 | |
4955 | /* Enable ECC on Lynxpoint */ | |
c8744f44 | 4956 | if (hw->mac.type >= e1000_pch_lpt) { |
94fb848b BA |
4957 | reg = er32(PBECCSTS); |
4958 | reg |= E1000_PBECCSTS_ECC_ENABLE; | |
4959 | ew32(PBECCSTS, reg); | |
4960 | ||
4961 | reg = er32(CTRL); | |
4962 | reg |= E1000_CTRL_MEHE; | |
4963 | ew32(CTRL, reg); | |
4964 | } | |
bc7f75fa AK |
4965 | } |
4966 | ||
4967 | /** | |
4968 | * e1000_setup_link_ich8lan - Setup flow control and link settings | |
4969 | * @hw: pointer to the HW structure | |
4970 | * | |
4971 | * Determines which flow control settings to use, then configures flow | |
4972 | * control. Calls the appropriate media-specific link configuration | |
4973 | * function. Assuming the adapter has a valid link partner, a valid link | |
4974 | * should be established. Assumes the hardware has previously been reset | |
4975 | * and the transmitter and receiver are not enabled. | |
4976 | **/ | |
4977 | static s32 e1000_setup_link_ich8lan(struct e1000_hw *hw) | |
4978 | { | |
bc7f75fa AK |
4979 | s32 ret_val; |
4980 | ||
44abd5c1 | 4981 | if (hw->phy.ops.check_reset_block(hw)) |
bc7f75fa AK |
4982 | return 0; |
4983 | ||
e921eb1a | 4984 | /* ICH parts do not have a word in the NVM to determine |
bc7f75fa AK |
4985 | * the default flow control setting, so we explicitly |
4986 | * set it to full. | |
4987 | */ | |
37289d9c BA |
4988 | if (hw->fc.requested_mode == e1000_fc_default) { |
4989 | /* Workaround h/w hang when Tx flow control enabled */ | |
4990 | if (hw->mac.type == e1000_pchlan) | |
4991 | hw->fc.requested_mode = e1000_fc_rx_pause; | |
4992 | else | |
4993 | hw->fc.requested_mode = e1000_fc_full; | |
4994 | } | |
bc7f75fa | 4995 | |
e921eb1a | 4996 | /* Save off the requested flow control mode for use later. Depending |
5c48ef3e BA |
4997 | * on the link partner's capabilities, we may or may not use this mode. |
4998 | */ | |
4999 | hw->fc.current_mode = hw->fc.requested_mode; | |
bc7f75fa | 5000 | |
17e813ec | 5001 | e_dbg("After fix-ups FlowControl is now = %x\n", hw->fc.current_mode); |
bc7f75fa AK |
5002 | |
5003 | /* Continue to configure the copper link. */ | |
944ce011 | 5004 | ret_val = hw->mac.ops.setup_physical_interface(hw); |
bc7f75fa AK |
5005 | if (ret_val) |
5006 | return ret_val; | |
5007 | ||
318a94d6 | 5008 | ew32(FCTTV, hw->fc.pause_time); |
a4f58f54 | 5009 | if ((hw->phy.type == e1000_phy_82578) || |
d3738bb8 | 5010 | (hw->phy.type == e1000_phy_82579) || |
2fbe4526 | 5011 | (hw->phy.type == e1000_phy_i217) || |
a4f58f54 | 5012 | (hw->phy.type == e1000_phy_82577)) { |
a305595b BA |
5013 | ew32(FCRTV_PCH, hw->fc.refresh_time); |
5014 | ||
482fed85 BA |
5015 | ret_val = e1e_wphy(hw, PHY_REG(BM_PORT_CTRL_PAGE, 27), |
5016 | hw->fc.pause_time); | |
a4f58f54 BA |
5017 | if (ret_val) |
5018 | return ret_val; | |
5019 | } | |
bc7f75fa AK |
5020 | |
5021 | return e1000e_set_fc_watermarks(hw); | |
5022 | } | |
5023 | ||
5024 | /** | |
5025 | * e1000_setup_copper_link_ich8lan - Configure MAC/PHY interface | |
5026 | * @hw: pointer to the HW structure | |
5027 | * | |
5028 | * Configures the kumeran interface to the PHY to wait the appropriate time | |
5029 | * when polling the PHY, then call the generic setup_copper_link to finish | |
5030 | * configuring the copper link. | |
5031 | **/ | |
5032 | static s32 e1000_setup_copper_link_ich8lan(struct e1000_hw *hw) | |
5033 | { | |
5034 | u32 ctrl; | |
5035 | s32 ret_val; | |
5036 | u16 reg_data; | |
5037 | ||
5038 | ctrl = er32(CTRL); | |
5039 | ctrl |= E1000_CTRL_SLU; | |
5040 | ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
5041 | ew32(CTRL, ctrl); | |
5042 | ||
e921eb1a | 5043 | /* Set the mac to wait the maximum time between each iteration |
bc7f75fa | 5044 | * and increase the max iterations when polling the phy; |
ad68076e BA |
5045 | * this fixes erroneous timeouts at 10Mbps. |
5046 | */ | |
07818950 | 5047 | ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_TIMEOUTS, 0xFFFF); |
bc7f75fa AK |
5048 | if (ret_val) |
5049 | return ret_val; | |
07818950 | 5050 | ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_INBAND_PARAM, |
f0ff4398 | 5051 | ®_data); |
bc7f75fa AK |
5052 | if (ret_val) |
5053 | return ret_val; | |
5054 | reg_data |= 0x3F; | |
07818950 | 5055 | ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_INBAND_PARAM, |
f0ff4398 | 5056 | reg_data); |
bc7f75fa AK |
5057 | if (ret_val) |
5058 | return ret_val; | |
5059 | ||
a4f58f54 BA |
5060 | switch (hw->phy.type) { |
5061 | case e1000_phy_igp_3: | |
bc7f75fa AK |
5062 | ret_val = e1000e_copper_link_setup_igp(hw); |
5063 | if (ret_val) | |
5064 | return ret_val; | |
a4f58f54 BA |
5065 | break; |
5066 | case e1000_phy_bm: | |
5067 | case e1000_phy_82578: | |
97ac8cae BA |
5068 | ret_val = e1000e_copper_link_setup_m88(hw); |
5069 | if (ret_val) | |
5070 | return ret_val; | |
a4f58f54 BA |
5071 | break; |
5072 | case e1000_phy_82577: | |
d3738bb8 | 5073 | case e1000_phy_82579: |
a4f58f54 BA |
5074 | ret_val = e1000_copper_link_setup_82577(hw); |
5075 | if (ret_val) | |
5076 | return ret_val; | |
5077 | break; | |
5078 | case e1000_phy_ife: | |
482fed85 | 5079 | ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, ®_data); |
97ac8cae BA |
5080 | if (ret_val) |
5081 | return ret_val; | |
5082 | ||
5083 | reg_data &= ~IFE_PMC_AUTO_MDIX; | |
5084 | ||
5085 | switch (hw->phy.mdix) { | |
5086 | case 1: | |
5087 | reg_data &= ~IFE_PMC_FORCE_MDIX; | |
5088 | break; | |
5089 | case 2: | |
5090 | reg_data |= IFE_PMC_FORCE_MDIX; | |
5091 | break; | |
5092 | case 0: | |
5093 | default: | |
5094 | reg_data |= IFE_PMC_AUTO_MDIX; | |
5095 | break; | |
5096 | } | |
482fed85 | 5097 | ret_val = e1e_wphy(hw, IFE_PHY_MDIX_CONTROL, reg_data); |
97ac8cae BA |
5098 | if (ret_val) |
5099 | return ret_val; | |
a4f58f54 BA |
5100 | break; |
5101 | default: | |
5102 | break; | |
97ac8cae | 5103 | } |
3fa82936 | 5104 | |
bc7f75fa AK |
5105 | return e1000e_setup_copper_link(hw); |
5106 | } | |
5107 | ||
ea8179a7 BA |
5108 | /** |
5109 | * e1000_setup_copper_link_pch_lpt - Configure MAC/PHY interface | |
5110 | * @hw: pointer to the HW structure | |
5111 | * | |
5112 | * Calls the PHY specific link setup function and then calls the | |
5113 | * generic setup_copper_link to finish configuring the link for | |
5114 | * Lynxpoint PCH devices | |
5115 | **/ | |
5116 | static s32 e1000_setup_copper_link_pch_lpt(struct e1000_hw *hw) | |
5117 | { | |
5118 | u32 ctrl; | |
5119 | s32 ret_val; | |
5120 | ||
5121 | ctrl = er32(CTRL); | |
5122 | ctrl |= E1000_CTRL_SLU; | |
5123 | ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
5124 | ew32(CTRL, ctrl); | |
5125 | ||
5126 | ret_val = e1000_copper_link_setup_82577(hw); | |
5127 | if (ret_val) | |
5128 | return ret_val; | |
5129 | ||
5130 | return e1000e_setup_copper_link(hw); | |
5131 | } | |
5132 | ||
bc7f75fa AK |
5133 | /** |
5134 | * e1000_get_link_up_info_ich8lan - Get current link speed and duplex | |
5135 | * @hw: pointer to the HW structure | |
5136 | * @speed: pointer to store current link speed | |
5137 | * @duplex: pointer to store the current link duplex | |
5138 | * | |
ad68076e | 5139 | * Calls the generic get_speed_and_duplex to retrieve the current link |
bc7f75fa AK |
5140 | * information and then calls the Kumeran lock loss workaround for links at |
5141 | * gigabit speeds. | |
5142 | **/ | |
5143 | static s32 e1000_get_link_up_info_ich8lan(struct e1000_hw *hw, u16 *speed, | |
5144 | u16 *duplex) | |
5145 | { | |
5146 | s32 ret_val; | |
5147 | ||
5148 | ret_val = e1000e_get_speed_and_duplex_copper(hw, speed, duplex); | |
5149 | if (ret_val) | |
5150 | return ret_val; | |
5151 | ||
5152 | if ((hw->mac.type == e1000_ich8lan) && | |
e5fe2541 | 5153 | (hw->phy.type == e1000_phy_igp_3) && (*speed == SPEED_1000)) { |
bc7f75fa AK |
5154 | ret_val = e1000_kmrn_lock_loss_workaround_ich8lan(hw); |
5155 | } | |
5156 | ||
5157 | return ret_val; | |
5158 | } | |
5159 | ||
5160 | /** | |
5161 | * e1000_kmrn_lock_loss_workaround_ich8lan - Kumeran workaround | |
5162 | * @hw: pointer to the HW structure | |
5163 | * | |
5164 | * Work-around for 82566 Kumeran PCS lock loss: | |
5165 | * On link status change (i.e. PCI reset, speed change) and link is up and | |
5166 | * speed is gigabit- | |
5167 | * 0) if workaround is optionally disabled do nothing | |
5168 | * 1) wait 1ms for Kumeran link to come up | |
5169 | * 2) check Kumeran Diagnostic register PCS lock loss bit | |
5170 | * 3) if not set the link is locked (all is good), otherwise... | |
5171 | * 4) reset the PHY | |
5172 | * 5) repeat up to 10 times | |
5173 | * Note: this is only called for IGP3 copper when speed is 1gb. | |
5174 | **/ | |
5175 | static s32 e1000_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw) | |
5176 | { | |
5177 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | |
5178 | u32 phy_ctrl; | |
5179 | s32 ret_val; | |
5180 | u16 i, data; | |
5181 | bool link; | |
5182 | ||
5183 | if (!dev_spec->kmrn_lock_loss_workaround_enabled) | |
5184 | return 0; | |
5185 | ||
e921eb1a | 5186 | /* Make sure link is up before proceeding. If not just return. |
bc7f75fa | 5187 | * Attempting this while link is negotiating fouled up link |
ad68076e BA |
5188 | * stability |
5189 | */ | |
bc7f75fa AK |
5190 | ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link); |
5191 | if (!link) | |
5192 | return 0; | |
5193 | ||
5194 | for (i = 0; i < 10; i++) { | |
5195 | /* read once to clear */ | |
5196 | ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data); | |
5197 | if (ret_val) | |
5198 | return ret_val; | |
5199 | /* and again to get new status */ | |
5200 | ret_val = e1e_rphy(hw, IGP3_KMRN_DIAG, &data); | |
5201 | if (ret_val) | |
5202 | return ret_val; | |
5203 | ||
5204 | /* check for PCS lock */ | |
5205 | if (!(data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS)) | |
5206 | return 0; | |
5207 | ||
5208 | /* Issue PHY reset */ | |
5209 | e1000_phy_hw_reset(hw); | |
5210 | mdelay(5); | |
5211 | } | |
5212 | /* Disable GigE link negotiation */ | |
5213 | phy_ctrl = er32(PHY_CTRL); | |
5214 | phy_ctrl |= (E1000_PHY_CTRL_GBE_DISABLE | | |
5215 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | |
5216 | ew32(PHY_CTRL, phy_ctrl); | |
5217 | ||
e921eb1a | 5218 | /* Call gig speed drop workaround on Gig disable before accessing |
ad68076e BA |
5219 | * any PHY registers |
5220 | */ | |
bc7f75fa AK |
5221 | e1000e_gig_downshift_workaround_ich8lan(hw); |
5222 | ||
5223 | /* unable to acquire PCS lock */ | |
5224 | return -E1000_ERR_PHY; | |
5225 | } | |
5226 | ||
5227 | /** | |
6e3c8075 | 5228 | * e1000e_set_kmrn_lock_loss_workaround_ich8lan - Set Kumeran workaround state |
bc7f75fa | 5229 | * @hw: pointer to the HW structure |
489815ce | 5230 | * @state: boolean value used to set the current Kumeran workaround state |
bc7f75fa | 5231 | * |
564ea9bb BA |
5232 | * If ICH8, set the current Kumeran workaround state (enabled - true |
5233 | * /disabled - false). | |
bc7f75fa AK |
5234 | **/ |
5235 | void e1000e_set_kmrn_lock_loss_workaround_ich8lan(struct e1000_hw *hw, | |
17e813ec | 5236 | bool state) |
bc7f75fa AK |
5237 | { |
5238 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; | |
5239 | ||
5240 | if (hw->mac.type != e1000_ich8lan) { | |
3bb99fe2 | 5241 | e_dbg("Workaround applies to ICH8 only.\n"); |
bc7f75fa AK |
5242 | return; |
5243 | } | |
5244 | ||
5245 | dev_spec->kmrn_lock_loss_workaround_enabled = state; | |
5246 | } | |
5247 | ||
5248 | /** | |
5249 | * e1000_ipg3_phy_powerdown_workaround_ich8lan - Power down workaround on D3 | |
5250 | * @hw: pointer to the HW structure | |
5251 | * | |
5252 | * Workaround for 82566 power-down on D3 entry: | |
5253 | * 1) disable gigabit link | |
5254 | * 2) write VR power-down enable | |
5255 | * 3) read it back | |
5256 | * Continue if successful, else issue LCD reset and repeat | |
5257 | **/ | |
5258 | void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw) | |
5259 | { | |
5260 | u32 reg; | |
5261 | u16 data; | |
e80bd1d1 | 5262 | u8 retry = 0; |
bc7f75fa AK |
5263 | |
5264 | if (hw->phy.type != e1000_phy_igp_3) | |
5265 | return; | |
5266 | ||
5267 | /* Try the workaround twice (if needed) */ | |
5268 | do { | |
5269 | /* Disable link */ | |
5270 | reg = er32(PHY_CTRL); | |
5271 | reg |= (E1000_PHY_CTRL_GBE_DISABLE | | |
5272 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | |
5273 | ew32(PHY_CTRL, reg); | |
5274 | ||
e921eb1a | 5275 | /* Call gig speed drop workaround on Gig disable before |
ad68076e BA |
5276 | * accessing any PHY registers |
5277 | */ | |
bc7f75fa AK |
5278 | if (hw->mac.type == e1000_ich8lan) |
5279 | e1000e_gig_downshift_workaround_ich8lan(hw); | |
5280 | ||
5281 | /* Write VR power-down enable */ | |
5282 | e1e_rphy(hw, IGP3_VR_CTRL, &data); | |
5283 | data &= ~IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK; | |
5284 | e1e_wphy(hw, IGP3_VR_CTRL, data | IGP3_VR_CTRL_MODE_SHUTDOWN); | |
5285 | ||
5286 | /* Read it back and test */ | |
5287 | e1e_rphy(hw, IGP3_VR_CTRL, &data); | |
5288 | data &= IGP3_VR_CTRL_DEV_POWERDOWN_MODE_MASK; | |
5289 | if ((data == IGP3_VR_CTRL_MODE_SHUTDOWN) || retry) | |
5290 | break; | |
5291 | ||
5292 | /* Issue PHY reset and repeat at most one more time */ | |
5293 | reg = er32(CTRL); | |
5294 | ew32(CTRL, reg | E1000_CTRL_PHY_RST); | |
5295 | retry++; | |
5296 | } while (retry); | |
5297 | } | |
5298 | ||
5299 | /** | |
5300 | * e1000e_gig_downshift_workaround_ich8lan - WoL from S5 stops working | |
5301 | * @hw: pointer to the HW structure | |
5302 | * | |
5303 | * Steps to take when dropping from 1Gb/s (eg. link cable removal (LSC), | |
489815ce | 5304 | * LPLU, Gig disable, MDIC PHY reset): |
bc7f75fa AK |
5305 | * 1) Set Kumeran Near-end loopback |
5306 | * 2) Clear Kumeran Near-end loopback | |
462d5994 | 5307 | * Should only be called for ICH8[m] devices with any 1G Phy. |
bc7f75fa AK |
5308 | **/ |
5309 | void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw) | |
5310 | { | |
5311 | s32 ret_val; | |
5312 | u16 reg_data; | |
5313 | ||
462d5994 | 5314 | if ((hw->mac.type != e1000_ich8lan) || (hw->phy.type == e1000_phy_ife)) |
bc7f75fa AK |
5315 | return; |
5316 | ||
5317 | ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET, | |
17e813ec | 5318 | ®_data); |
bc7f75fa AK |
5319 | if (ret_val) |
5320 | return; | |
5321 | reg_data |= E1000_KMRNCTRLSTA_DIAG_NELPBK; | |
5322 | ret_val = e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET, | |
17e813ec | 5323 | reg_data); |
bc7f75fa AK |
5324 | if (ret_val) |
5325 | return; | |
5326 | reg_data &= ~E1000_KMRNCTRLSTA_DIAG_NELPBK; | |
7dbbe5d5 | 5327 | e1000e_write_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET, reg_data); |
bc7f75fa AK |
5328 | } |
5329 | ||
97ac8cae | 5330 | /** |
99730e4c | 5331 | * e1000_suspend_workarounds_ich8lan - workarounds needed during S0->Sx |
97ac8cae BA |
5332 | * @hw: pointer to the HW structure |
5333 | * | |
5334 | * During S0 to Sx transition, it is possible the link remains at gig | |
5335 | * instead of negotiating to a lower speed. Before going to Sx, set | |
c077a906 BA |
5336 | * 'Gig Disable' to force link speed negotiation to a lower speed based on |
5337 | * the LPLU setting in the NVM or custom setting. For PCH and newer parts, | |
5338 | * the OEM bits PHY register (LED, GbE disable and LPLU configurations) also | |
5339 | * needs to be written. | |
2fbe4526 BA |
5340 | * Parts that support (and are linked to a partner which support) EEE in |
5341 | * 100Mbps should disable LPLU since 100Mbps w/ EEE requires less power | |
5342 | * than 10Mbps w/o EEE. | |
97ac8cae | 5343 | **/ |
99730e4c | 5344 | void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw) |
97ac8cae | 5345 | { |
2fbe4526 | 5346 | struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan; |
97ac8cae | 5347 | u32 phy_ctrl; |
8395ae83 | 5348 | s32 ret_val; |
97ac8cae | 5349 | |
17f085df | 5350 | phy_ctrl = er32(PHY_CTRL); |
c077a906 | 5351 | phy_ctrl |= E1000_PHY_CTRL_GBE_DISABLE; |
e08f626b | 5352 | |
2fbe4526 | 5353 | if (hw->phy.type == e1000_phy_i217) { |
e08f626b BA |
5354 | u16 phy_reg, device_id = hw->adapter->pdev->device; |
5355 | ||
5356 | if ((device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) || | |
91a3d82f BA |
5357 | (device_id == E1000_DEV_ID_PCH_LPTLP_I218_V) || |
5358 | (device_id == E1000_DEV_ID_PCH_I218_LM3) || | |
79849ebc | 5359 | (device_id == E1000_DEV_ID_PCH_I218_V3) || |
c8744f44 | 5360 | (hw->mac.type >= e1000_pch_spt)) { |
e08f626b BA |
5361 | u32 fextnvm6 = er32(FEXTNVM6); |
5362 | ||
5363 | ew32(FEXTNVM6, fextnvm6 & ~E1000_FEXTNVM6_REQ_PLL_CLK); | |
5364 | } | |
2fbe4526 BA |
5365 | |
5366 | ret_val = hw->phy.ops.acquire(hw); | |
5367 | if (ret_val) | |
5368 | goto out; | |
5369 | ||
5370 | if (!dev_spec->eee_disable) { | |
5371 | u16 eee_advert; | |
5372 | ||
4ddc48a9 BA |
5373 | ret_val = |
5374 | e1000_read_emi_reg_locked(hw, | |
5375 | I217_EEE_ADVERTISEMENT, | |
5376 | &eee_advert); | |
2fbe4526 BA |
5377 | if (ret_val) |
5378 | goto release; | |
2fbe4526 | 5379 | |
e921eb1a | 5380 | /* Disable LPLU if both link partners support 100BaseT |
2fbe4526 | 5381 | * EEE and 100Full is advertised on both ends of the |
b4c1e6bf DE |
5382 | * link, and enable Auto Enable LPI since there will |
5383 | * be no driver to enable LPI while in Sx. | |
2fbe4526 | 5384 | */ |
3d4d5755 | 5385 | if ((eee_advert & I82579_EEE_100_SUPPORTED) && |
2fbe4526 | 5386 | (dev_spec->eee_lp_ability & |
3d4d5755 | 5387 | I82579_EEE_100_SUPPORTED) && |
b4c1e6bf | 5388 | (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)) { |
2fbe4526 BA |
5389 | phy_ctrl &= ~(E1000_PHY_CTRL_D0A_LPLU | |
5390 | E1000_PHY_CTRL_NOND0A_LPLU); | |
b4c1e6bf DE |
5391 | |
5392 | /* Set Auto Enable LPI after link up */ | |
5393 | e1e_rphy_locked(hw, | |
5394 | I217_LPI_GPIO_CTRL, &phy_reg); | |
5395 | phy_reg |= I217_LPI_GPIO_CTRL_AUTO_EN_LPI; | |
5396 | e1e_wphy_locked(hw, | |
5397 | I217_LPI_GPIO_CTRL, phy_reg); | |
5398 | } | |
2fbe4526 BA |
5399 | } |
5400 | ||
e921eb1a | 5401 | /* For i217 Intel Rapid Start Technology support, |
2fbe4526 BA |
5402 | * when the system is going into Sx and no manageability engine |
5403 | * is present, the driver must configure proxy to reset only on | |
5404 | * power good. LPI (Low Power Idle) state must also reset only | |
5405 | * on power good, as well as the MTA (Multicast table array). | |
5406 | * The SMBus release must also be disabled on LCD reset. | |
5407 | */ | |
5408 | if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) { | |
2fbe4526 BA |
5409 | /* Enable proxy to reset only on power good. */ |
5410 | e1e_rphy_locked(hw, I217_PROXY_CTRL, &phy_reg); | |
5411 | phy_reg |= I217_PROXY_CTRL_AUTO_DISABLE; | |
5412 | e1e_wphy_locked(hw, I217_PROXY_CTRL, phy_reg); | |
5413 | ||
e921eb1a | 5414 | /* Set bit enable LPI (EEE) to reset only on |
2fbe4526 BA |
5415 | * power good. |
5416 | */ | |
5417 | e1e_rphy_locked(hw, I217_SxCTRL, &phy_reg); | |
6d7407bf | 5418 | phy_reg |= I217_SxCTRL_ENABLE_LPI_RESET; |
2fbe4526 BA |
5419 | e1e_wphy_locked(hw, I217_SxCTRL, phy_reg); |
5420 | ||
5421 | /* Disable the SMB release on LCD reset. */ | |
5422 | e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg); | |
6d7407bf | 5423 | phy_reg &= ~I217_MEMPWR_DISABLE_SMB_RELEASE; |
2fbe4526 BA |
5424 | e1e_wphy_locked(hw, I217_MEMPWR, phy_reg); |
5425 | } | |
5426 | ||
e921eb1a | 5427 | /* Enable MTA to reset for Intel Rapid Start Technology |
2fbe4526 BA |
5428 | * Support |
5429 | */ | |
5430 | e1e_rphy_locked(hw, I217_CGFREG, &phy_reg); | |
6d7407bf | 5431 | phy_reg |= I217_CGFREG_ENABLE_MTA_RESET; |
2fbe4526 BA |
5432 | e1e_wphy_locked(hw, I217_CGFREG, phy_reg); |
5433 | ||
5434 | release: | |
5435 | hw->phy.ops.release(hw); | |
5436 | } | |
5437 | out: | |
17f085df | 5438 | ew32(PHY_CTRL, phy_ctrl); |
a4f58f54 | 5439 | |
462d5994 BA |
5440 | if (hw->mac.type == e1000_ich8lan) |
5441 | e1000e_gig_downshift_workaround_ich8lan(hw); | |
5442 | ||
8395ae83 | 5443 | if (hw->mac.type >= e1000_pchlan) { |
ce54afd1 | 5444 | e1000_oem_bits_config_ich8lan(hw, false); |
92fe1733 BA |
5445 | |
5446 | /* Reset PHY to activate OEM bits on 82577/8 */ | |
5447 | if (hw->mac.type == e1000_pchlan) | |
5448 | e1000e_phy_hw_reset_generic(hw); | |
5449 | ||
8395ae83 BA |
5450 | ret_val = hw->phy.ops.acquire(hw); |
5451 | if (ret_val) | |
5452 | return; | |
5453 | e1000_write_smbus_addr(hw); | |
5454 | hw->phy.ops.release(hw); | |
5455 | } | |
97ac8cae BA |
5456 | } |
5457 | ||
99730e4c BA |
5458 | /** |
5459 | * e1000_resume_workarounds_pchlan - workarounds needed during Sx->S0 | |
5460 | * @hw: pointer to the HW structure | |
5461 | * | |
5462 | * During Sx to S0 transitions on non-managed devices or managed devices | |
5463 | * on which PHY resets are not blocked, if the PHY registers cannot be | |
5464 | * accessed properly by the s/w toggle the LANPHYPC value to power cycle | |
5465 | * the PHY. | |
2fbe4526 | 5466 | * On i217, setup Intel Rapid Start Technology. |
99730e4c BA |
5467 | **/ |
5468 | void e1000_resume_workarounds_pchlan(struct e1000_hw *hw) | |
5469 | { | |
90b82984 | 5470 | s32 ret_val; |
99730e4c | 5471 | |
cb17aab9 | 5472 | if (hw->mac.type < e1000_pch2lan) |
99730e4c BA |
5473 | return; |
5474 | ||
cb17aab9 | 5475 | ret_val = e1000_init_phy_workarounds_pchlan(hw); |
90b82984 | 5476 | if (ret_val) { |
cb17aab9 | 5477 | e_dbg("Failed to init PHY flow ret_val=%d\n", ret_val); |
90b82984 BA |
5478 | return; |
5479 | } | |
2fbe4526 | 5480 | |
e921eb1a | 5481 | /* For i217 Intel Rapid Start Technology support when the system |
2fbe4526 BA |
5482 | * is transitioning from Sx and no manageability engine is present |
5483 | * configure SMBus to restore on reset, disable proxy, and enable | |
5484 | * the reset on MTA (Multicast table array). | |
5485 | */ | |
5486 | if (hw->phy.type == e1000_phy_i217) { | |
5487 | u16 phy_reg; | |
5488 | ||
5489 | ret_val = hw->phy.ops.acquire(hw); | |
5490 | if (ret_val) { | |
5491 | e_dbg("Failed to setup iRST\n"); | |
5492 | return; | |
5493 | } | |
5494 | ||
b4c1e6bf DE |
5495 | /* Clear Auto Enable LPI after link up */ |
5496 | e1e_rphy_locked(hw, I217_LPI_GPIO_CTRL, &phy_reg); | |
5497 | phy_reg &= ~I217_LPI_GPIO_CTRL_AUTO_EN_LPI; | |
5498 | e1e_wphy_locked(hw, I217_LPI_GPIO_CTRL, phy_reg); | |
5499 | ||
2fbe4526 | 5500 | if (!(er32(FWSM) & E1000_ICH_FWSM_FW_VALID)) { |
e921eb1a | 5501 | /* Restore clear on SMB if no manageability engine |
2fbe4526 BA |
5502 | * is present |
5503 | */ | |
5504 | ret_val = e1e_rphy_locked(hw, I217_MEMPWR, &phy_reg); | |
5505 | if (ret_val) | |
5506 | goto release; | |
6d7407bf | 5507 | phy_reg |= I217_MEMPWR_DISABLE_SMB_RELEASE; |
2fbe4526 BA |
5508 | e1e_wphy_locked(hw, I217_MEMPWR, phy_reg); |
5509 | ||
5510 | /* Disable Proxy */ | |
5511 | e1e_wphy_locked(hw, I217_PROXY_CTRL, 0); | |
5512 | } | |
5513 | /* Enable reset on MTA */ | |
5514 | ret_val = e1e_rphy_locked(hw, I217_CGFREG, &phy_reg); | |
5515 | if (ret_val) | |
5516 | goto release; | |
6d7407bf | 5517 | phy_reg &= ~I217_CGFREG_ENABLE_MTA_RESET; |
2fbe4526 BA |
5518 | e1e_wphy_locked(hw, I217_CGFREG, phy_reg); |
5519 | release: | |
5520 | if (ret_val) | |
5521 | e_dbg("Error %d in resume workarounds\n", ret_val); | |
5522 | hw->phy.ops.release(hw); | |
5523 | } | |
99730e4c BA |
5524 | } |
5525 | ||
bc7f75fa AK |
5526 | /** |
5527 | * e1000_cleanup_led_ich8lan - Restore the default LED operation | |
5528 | * @hw: pointer to the HW structure | |
5529 | * | |
5530 | * Return the LED back to the default configuration. | |
5531 | **/ | |
5532 | static s32 e1000_cleanup_led_ich8lan(struct e1000_hw *hw) | |
5533 | { | |
5534 | if (hw->phy.type == e1000_phy_ife) | |
5535 | return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0); | |
5536 | ||
5537 | ew32(LEDCTL, hw->mac.ledctl_default); | |
5538 | return 0; | |
5539 | } | |
5540 | ||
5541 | /** | |
489815ce | 5542 | * e1000_led_on_ich8lan - Turn LEDs on |
bc7f75fa AK |
5543 | * @hw: pointer to the HW structure |
5544 | * | |
489815ce | 5545 | * Turn on the LEDs. |
bc7f75fa AK |
5546 | **/ |
5547 | static s32 e1000_led_on_ich8lan(struct e1000_hw *hw) | |
5548 | { | |
5549 | if (hw->phy.type == e1000_phy_ife) | |
5550 | return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, | |
5551 | (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON)); | |
5552 | ||
5553 | ew32(LEDCTL, hw->mac.ledctl_mode2); | |
5554 | return 0; | |
5555 | } | |
5556 | ||
5557 | /** | |
489815ce | 5558 | * e1000_led_off_ich8lan - Turn LEDs off |
bc7f75fa AK |
5559 | * @hw: pointer to the HW structure |
5560 | * | |
489815ce | 5561 | * Turn off the LEDs. |
bc7f75fa AK |
5562 | **/ |
5563 | static s32 e1000_led_off_ich8lan(struct e1000_hw *hw) | |
5564 | { | |
5565 | if (hw->phy.type == e1000_phy_ife) | |
5566 | return e1e_wphy(hw, IFE_PHY_SPECIAL_CONTROL_LED, | |
482fed85 BA |
5567 | (IFE_PSCL_PROBE_MODE | |
5568 | IFE_PSCL_PROBE_LEDS_OFF)); | |
bc7f75fa AK |
5569 | |
5570 | ew32(LEDCTL, hw->mac.ledctl_mode1); | |
5571 | return 0; | |
5572 | } | |
5573 | ||
a4f58f54 BA |
5574 | /** |
5575 | * e1000_setup_led_pchlan - Configures SW controllable LED | |
5576 | * @hw: pointer to the HW structure | |
5577 | * | |
5578 | * This prepares the SW controllable LED for use. | |
5579 | **/ | |
5580 | static s32 e1000_setup_led_pchlan(struct e1000_hw *hw) | |
5581 | { | |
482fed85 | 5582 | return e1e_wphy(hw, HV_LED_CONFIG, (u16)hw->mac.ledctl_mode1); |
a4f58f54 BA |
5583 | } |
5584 | ||
5585 | /** | |
5586 | * e1000_cleanup_led_pchlan - Restore the default LED operation | |
5587 | * @hw: pointer to the HW structure | |
5588 | * | |
5589 | * Return the LED back to the default configuration. | |
5590 | **/ | |
5591 | static s32 e1000_cleanup_led_pchlan(struct e1000_hw *hw) | |
5592 | { | |
482fed85 | 5593 | return e1e_wphy(hw, HV_LED_CONFIG, (u16)hw->mac.ledctl_default); |
a4f58f54 BA |
5594 | } |
5595 | ||
5596 | /** | |
5597 | * e1000_led_on_pchlan - Turn LEDs on | |
5598 | * @hw: pointer to the HW structure | |
5599 | * | |
5600 | * Turn on the LEDs. | |
5601 | **/ | |
5602 | static s32 e1000_led_on_pchlan(struct e1000_hw *hw) | |
5603 | { | |
5604 | u16 data = (u16)hw->mac.ledctl_mode2; | |
5605 | u32 i, led; | |
5606 | ||
e921eb1a | 5607 | /* If no link, then turn LED on by setting the invert bit |
a4f58f54 BA |
5608 | * for each LED that's mode is "link_up" in ledctl_mode2. |
5609 | */ | |
5610 | if (!(er32(STATUS) & E1000_STATUS_LU)) { | |
5611 | for (i = 0; i < 3; i++) { | |
5612 | led = (data >> (i * 5)) & E1000_PHY_LED0_MASK; | |
5613 | if ((led & E1000_PHY_LED0_MODE_MASK) != | |
5614 | E1000_LEDCTL_MODE_LINK_UP) | |
5615 | continue; | |
5616 | if (led & E1000_PHY_LED0_IVRT) | |
5617 | data &= ~(E1000_PHY_LED0_IVRT << (i * 5)); | |
5618 | else | |
5619 | data |= (E1000_PHY_LED0_IVRT << (i * 5)); | |
5620 | } | |
5621 | } | |
5622 | ||
482fed85 | 5623 | return e1e_wphy(hw, HV_LED_CONFIG, data); |
a4f58f54 BA |
5624 | } |
5625 | ||
5626 | /** | |
5627 | * e1000_led_off_pchlan - Turn LEDs off | |
5628 | * @hw: pointer to the HW structure | |
5629 | * | |
5630 | * Turn off the LEDs. | |
5631 | **/ | |
5632 | static s32 e1000_led_off_pchlan(struct e1000_hw *hw) | |
5633 | { | |
5634 | u16 data = (u16)hw->mac.ledctl_mode1; | |
5635 | u32 i, led; | |
5636 | ||
e921eb1a | 5637 | /* If no link, then turn LED off by clearing the invert bit |
a4f58f54 BA |
5638 | * for each LED that's mode is "link_up" in ledctl_mode1. |
5639 | */ | |
5640 | if (!(er32(STATUS) & E1000_STATUS_LU)) { | |
5641 | for (i = 0; i < 3; i++) { | |
5642 | led = (data >> (i * 5)) & E1000_PHY_LED0_MASK; | |
5643 | if ((led & E1000_PHY_LED0_MODE_MASK) != | |
5644 | E1000_LEDCTL_MODE_LINK_UP) | |
5645 | continue; | |
5646 | if (led & E1000_PHY_LED0_IVRT) | |
5647 | data &= ~(E1000_PHY_LED0_IVRT << (i * 5)); | |
5648 | else | |
5649 | data |= (E1000_PHY_LED0_IVRT << (i * 5)); | |
5650 | } | |
5651 | } | |
5652 | ||
482fed85 | 5653 | return e1e_wphy(hw, HV_LED_CONFIG, data); |
a4f58f54 BA |
5654 | } |
5655 | ||
f4187b56 | 5656 | /** |
e98cac44 | 5657 | * e1000_get_cfg_done_ich8lan - Read config done bit after Full or PHY reset |
f4187b56 BA |
5658 | * @hw: pointer to the HW structure |
5659 | * | |
e98cac44 BA |
5660 | * Read appropriate register for the config done bit for completion status |
5661 | * and configure the PHY through s/w for EEPROM-less parts. | |
5662 | * | |
5663 | * NOTE: some silicon which is EEPROM-less will fail trying to read the | |
5664 | * config done bit, so only an error is logged and continues. If we were | |
5665 | * to return with error, EEPROM-less silicon would not be able to be reset | |
5666 | * or change link. | |
f4187b56 BA |
5667 | **/ |
5668 | static s32 e1000_get_cfg_done_ich8lan(struct e1000_hw *hw) | |
5669 | { | |
e98cac44 | 5670 | s32 ret_val = 0; |
f4187b56 | 5671 | u32 bank = 0; |
e98cac44 | 5672 | u32 status; |
f4187b56 | 5673 | |
fe90849f | 5674 | e1000e_get_cfg_done_generic(hw); |
fc0c7760 | 5675 | |
e98cac44 BA |
5676 | /* Wait for indication from h/w that it has completed basic config */ |
5677 | if (hw->mac.type >= e1000_ich10lan) { | |
5678 | e1000_lan_init_done_ich8lan(hw); | |
5679 | } else { | |
5680 | ret_val = e1000e_get_auto_rd_done(hw); | |
5681 | if (ret_val) { | |
e921eb1a | 5682 | /* When auto config read does not complete, do not |
e98cac44 BA |
5683 | * return with an error. This can happen in situations |
5684 | * where there is no eeprom and prevents getting link. | |
5685 | */ | |
5686 | e_dbg("Auto Read Done did not complete\n"); | |
5687 | ret_val = 0; | |
5688 | } | |
fc0c7760 BA |
5689 | } |
5690 | ||
e98cac44 BA |
5691 | /* Clear PHY Reset Asserted bit */ |
5692 | status = er32(STATUS); | |
5693 | if (status & E1000_STATUS_PHYRA) | |
5694 | ew32(STATUS, status & ~E1000_STATUS_PHYRA); | |
5695 | else | |
5696 | e_dbg("PHY Reset Asserted not set - needs delay\n"); | |
f4187b56 BA |
5697 | |
5698 | /* If EEPROM is not marked present, init the IGP 3 PHY manually */ | |
e98cac44 | 5699 | if (hw->mac.type <= e1000_ich9lan) { |
04499ec4 | 5700 | if (!(er32(EECD) & E1000_EECD_PRES) && |
f4187b56 BA |
5701 | (hw->phy.type == e1000_phy_igp_3)) { |
5702 | e1000e_phy_init_script_igp3(hw); | |
5703 | } | |
5704 | } else { | |
5705 | if (e1000_valid_nvm_bank_detect_ich8lan(hw, &bank)) { | |
5706 | /* Maybe we should do a basic PHY config */ | |
3bb99fe2 | 5707 | e_dbg("EEPROM not present\n"); |
e98cac44 | 5708 | ret_val = -E1000_ERR_CONFIG; |
f4187b56 BA |
5709 | } |
5710 | } | |
5711 | ||
e98cac44 | 5712 | return ret_val; |
f4187b56 BA |
5713 | } |
5714 | ||
17f208de BA |
5715 | /** |
5716 | * e1000_power_down_phy_copper_ich8lan - Remove link during PHY power down | |
5717 | * @hw: pointer to the HW structure | |
5718 | * | |
5719 | * In the case of a PHY power down to save power, or to turn off link during a | |
5720 | * driver unload, or wake on lan is not enabled, remove the link. | |
5721 | **/ | |
5722 | static void e1000_power_down_phy_copper_ich8lan(struct e1000_hw *hw) | |
5723 | { | |
5724 | /* If the management interface is not enabled, then power down */ | |
5725 | if (!(hw->mac.ops.check_mng_mode(hw) || | |
5726 | hw->phy.ops.check_reset_block(hw))) | |
5727 | e1000_power_down_phy_copper(hw); | |
17f208de BA |
5728 | } |
5729 | ||
bc7f75fa AK |
5730 | /** |
5731 | * e1000_clear_hw_cntrs_ich8lan - Clear statistical counters | |
5732 | * @hw: pointer to the HW structure | |
5733 | * | |
5734 | * Clears hardware counters specific to the silicon family and calls | |
5735 | * clear_hw_cntrs_generic to clear all general purpose counters. | |
5736 | **/ | |
5737 | static void e1000_clear_hw_cntrs_ich8lan(struct e1000_hw *hw) | |
5738 | { | |
a4f58f54 | 5739 | u16 phy_data; |
2b6b168d | 5740 | s32 ret_val; |
bc7f75fa AK |
5741 | |
5742 | e1000e_clear_hw_cntrs_base(hw); | |
5743 | ||
99673d9b BA |
5744 | er32(ALGNERRC); |
5745 | er32(RXERRC); | |
5746 | er32(TNCRS); | |
5747 | er32(CEXTERR); | |
5748 | er32(TSCTC); | |
5749 | er32(TSCTFC); | |
bc7f75fa | 5750 | |
99673d9b BA |
5751 | er32(MGTPRC); |
5752 | er32(MGTPDC); | |
5753 | er32(MGTPTC); | |
bc7f75fa | 5754 | |
99673d9b BA |
5755 | er32(IAC); |
5756 | er32(ICRXOC); | |
bc7f75fa | 5757 | |
a4f58f54 BA |
5758 | /* Clear PHY statistics registers */ |
5759 | if ((hw->phy.type == e1000_phy_82578) || | |
d3738bb8 | 5760 | (hw->phy.type == e1000_phy_82579) || |
2fbe4526 | 5761 | (hw->phy.type == e1000_phy_i217) || |
a4f58f54 | 5762 | (hw->phy.type == e1000_phy_82577)) { |
2b6b168d BA |
5763 | ret_val = hw->phy.ops.acquire(hw); |
5764 | if (ret_val) | |
5765 | return; | |
5766 | ret_val = hw->phy.ops.set_page(hw, | |
5767 | HV_STATS_PAGE << IGP_PAGE_SHIFT); | |
5768 | if (ret_val) | |
5769 | goto release; | |
5770 | hw->phy.ops.read_reg_page(hw, HV_SCC_UPPER, &phy_data); | |
5771 | hw->phy.ops.read_reg_page(hw, HV_SCC_LOWER, &phy_data); | |
5772 | hw->phy.ops.read_reg_page(hw, HV_ECOL_UPPER, &phy_data); | |
5773 | hw->phy.ops.read_reg_page(hw, HV_ECOL_LOWER, &phy_data); | |
5774 | hw->phy.ops.read_reg_page(hw, HV_MCC_UPPER, &phy_data); | |
5775 | hw->phy.ops.read_reg_page(hw, HV_MCC_LOWER, &phy_data); | |
5776 | hw->phy.ops.read_reg_page(hw, HV_LATECOL_UPPER, &phy_data); | |
5777 | hw->phy.ops.read_reg_page(hw, HV_LATECOL_LOWER, &phy_data); | |
5778 | hw->phy.ops.read_reg_page(hw, HV_COLC_UPPER, &phy_data); | |
5779 | hw->phy.ops.read_reg_page(hw, HV_COLC_LOWER, &phy_data); | |
5780 | hw->phy.ops.read_reg_page(hw, HV_DC_UPPER, &phy_data); | |
5781 | hw->phy.ops.read_reg_page(hw, HV_DC_LOWER, &phy_data); | |
5782 | hw->phy.ops.read_reg_page(hw, HV_TNCRS_UPPER, &phy_data); | |
5783 | hw->phy.ops.read_reg_page(hw, HV_TNCRS_LOWER, &phy_data); | |
5784 | release: | |
5785 | hw->phy.ops.release(hw); | |
a4f58f54 | 5786 | } |
bc7f75fa AK |
5787 | } |
5788 | ||
8ce9d6c7 | 5789 | static const struct e1000_mac_operations ich8_mac_ops = { |
eb7700dc | 5790 | /* check_mng_mode dependent on mac type */ |
7d3cabbc | 5791 | .check_for_link = e1000_check_for_copper_link_ich8lan, |
a4f58f54 | 5792 | /* cleanup_led dependent on mac type */ |
bc7f75fa AK |
5793 | .clear_hw_cntrs = e1000_clear_hw_cntrs_ich8lan, |
5794 | .get_bus_info = e1000_get_bus_info_ich8lan, | |
f4d2dd4c | 5795 | .set_lan_id = e1000_set_lan_id_single_port, |
bc7f75fa | 5796 | .get_link_up_info = e1000_get_link_up_info_ich8lan, |
a4f58f54 BA |
5797 | /* led_on dependent on mac type */ |
5798 | /* led_off dependent on mac type */ | |
e2de3eb6 | 5799 | .update_mc_addr_list = e1000e_update_mc_addr_list_generic, |
bc7f75fa AK |
5800 | .reset_hw = e1000_reset_hw_ich8lan, |
5801 | .init_hw = e1000_init_hw_ich8lan, | |
5802 | .setup_link = e1000_setup_link_ich8lan, | |
55c5f55e | 5803 | .setup_physical_interface = e1000_setup_copper_link_ich8lan, |
a4f58f54 | 5804 | /* id_led_init dependent on mac type */ |
57cde763 | 5805 | .config_collision_dist = e1000e_config_collision_dist_generic, |
69e1e019 | 5806 | .rar_set = e1000e_rar_set_generic, |
b3e5bf1f | 5807 | .rar_get_count = e1000e_rar_get_count_generic, |
bc7f75fa AK |
5808 | }; |
5809 | ||
8ce9d6c7 | 5810 | static const struct e1000_phy_operations ich8_phy_ops = { |
94d8186a | 5811 | .acquire = e1000_acquire_swflag_ich8lan, |
bc7f75fa | 5812 | .check_reset_block = e1000_check_reset_block_ich8lan, |
94d8186a | 5813 | .commit = NULL, |
f4187b56 | 5814 | .get_cfg_done = e1000_get_cfg_done_ich8lan, |
bc7f75fa | 5815 | .get_cable_length = e1000e_get_cable_length_igp_2, |
94d8186a BA |
5816 | .read_reg = e1000e_read_phy_reg_igp, |
5817 | .release = e1000_release_swflag_ich8lan, | |
5818 | .reset = e1000_phy_hw_reset_ich8lan, | |
bc7f75fa AK |
5819 | .set_d0_lplu_state = e1000_set_d0_lplu_state_ich8lan, |
5820 | .set_d3_lplu_state = e1000_set_d3_lplu_state_ich8lan, | |
94d8186a | 5821 | .write_reg = e1000e_write_phy_reg_igp, |
bc7f75fa AK |
5822 | }; |
5823 | ||
8ce9d6c7 | 5824 | static const struct e1000_nvm_operations ich8_nvm_ops = { |
94d8186a | 5825 | .acquire = e1000_acquire_nvm_ich8lan, |
55c5f55e | 5826 | .read = e1000_read_nvm_ich8lan, |
94d8186a | 5827 | .release = e1000_release_nvm_ich8lan, |
e85e3639 | 5828 | .reload = e1000e_reload_nvm_generic, |
94d8186a | 5829 | .update = e1000_update_nvm_checksum_ich8lan, |
bc7f75fa | 5830 | .valid_led_default = e1000_valid_led_default_ich8lan, |
94d8186a BA |
5831 | .validate = e1000_validate_nvm_checksum_ich8lan, |
5832 | .write = e1000_write_nvm_ich8lan, | |
bc7f75fa AK |
5833 | }; |
5834 | ||
79849ebc DE |
5835 | static const struct e1000_nvm_operations spt_nvm_ops = { |
5836 | .acquire = e1000_acquire_nvm_ich8lan, | |
5837 | .release = e1000_release_nvm_ich8lan, | |
5838 | .read = e1000_read_nvm_spt, | |
5839 | .update = e1000_update_nvm_checksum_spt, | |
5840 | .reload = e1000e_reload_nvm_generic, | |
5841 | .valid_led_default = e1000_valid_led_default_ich8lan, | |
5842 | .validate = e1000_validate_nvm_checksum_ich8lan, | |
5843 | .write = e1000_write_nvm_ich8lan, | |
5844 | }; | |
5845 | ||
8ce9d6c7 | 5846 | const struct e1000_info e1000_ich8_info = { |
bc7f75fa AK |
5847 | .mac = e1000_ich8lan, |
5848 | .flags = FLAG_HAS_WOL | |
97ac8cae | 5849 | | FLAG_IS_ICH |
bc7f75fa AK |
5850 | | FLAG_HAS_CTRLEXT_ON_LOAD |
5851 | | FLAG_HAS_AMT | |
5852 | | FLAG_HAS_FLASH | |
5853 | | FLAG_APME_IN_WUC, | |
5854 | .pba = 8, | |
8084b86d | 5855 | .max_hw_frame_size = VLAN_ETH_FRAME_LEN + ETH_FCS_LEN, |
69e3fd8c | 5856 | .get_variants = e1000_get_variants_ich8lan, |
bc7f75fa AK |
5857 | .mac_ops = &ich8_mac_ops, |
5858 | .phy_ops = &ich8_phy_ops, | |
5859 | .nvm_ops = &ich8_nvm_ops, | |
5860 | }; | |
5861 | ||
8ce9d6c7 | 5862 | const struct e1000_info e1000_ich9_info = { |
bc7f75fa AK |
5863 | .mac = e1000_ich9lan, |
5864 | .flags = FLAG_HAS_JUMBO_FRAMES | |
97ac8cae | 5865 | | FLAG_IS_ICH |
bc7f75fa | 5866 | | FLAG_HAS_WOL |
bc7f75fa AK |
5867 | | FLAG_HAS_CTRLEXT_ON_LOAD |
5868 | | FLAG_HAS_AMT | |
bc7f75fa AK |
5869 | | FLAG_HAS_FLASH |
5870 | | FLAG_APME_IN_WUC, | |
7f1557e1 | 5871 | .pba = 18, |
2adc55c9 | 5872 | .max_hw_frame_size = DEFAULT_JUMBO, |
69e3fd8c | 5873 | .get_variants = e1000_get_variants_ich8lan, |
bc7f75fa AK |
5874 | .mac_ops = &ich8_mac_ops, |
5875 | .phy_ops = &ich8_phy_ops, | |
5876 | .nvm_ops = &ich8_nvm_ops, | |
5877 | }; | |
5878 | ||
8ce9d6c7 | 5879 | const struct e1000_info e1000_ich10_info = { |
f4187b56 BA |
5880 | .mac = e1000_ich10lan, |
5881 | .flags = FLAG_HAS_JUMBO_FRAMES | |
5882 | | FLAG_IS_ICH | |
5883 | | FLAG_HAS_WOL | |
f4187b56 BA |
5884 | | FLAG_HAS_CTRLEXT_ON_LOAD |
5885 | | FLAG_HAS_AMT | |
f4187b56 BA |
5886 | | FLAG_HAS_FLASH |
5887 | | FLAG_APME_IN_WUC, | |
7f1557e1 | 5888 | .pba = 18, |
2adc55c9 | 5889 | .max_hw_frame_size = DEFAULT_JUMBO, |
f4187b56 BA |
5890 | .get_variants = e1000_get_variants_ich8lan, |
5891 | .mac_ops = &ich8_mac_ops, | |
5892 | .phy_ops = &ich8_phy_ops, | |
5893 | .nvm_ops = &ich8_nvm_ops, | |
5894 | }; | |
a4f58f54 | 5895 | |
8ce9d6c7 | 5896 | const struct e1000_info e1000_pch_info = { |
a4f58f54 BA |
5897 | .mac = e1000_pchlan, |
5898 | .flags = FLAG_IS_ICH | |
5899 | | FLAG_HAS_WOL | |
a4f58f54 BA |
5900 | | FLAG_HAS_CTRLEXT_ON_LOAD |
5901 | | FLAG_HAS_AMT | |
5902 | | FLAG_HAS_FLASH | |
5903 | | FLAG_HAS_JUMBO_FRAMES | |
38eb394e | 5904 | | FLAG_DISABLE_FC_PAUSE_TIME /* errata */ |
a4f58f54 | 5905 | | FLAG_APME_IN_WUC, |
8c7bbb92 | 5906 | .flags2 = FLAG2_HAS_PHY_STATS, |
a4f58f54 BA |
5907 | .pba = 26, |
5908 | .max_hw_frame_size = 4096, | |
5909 | .get_variants = e1000_get_variants_ich8lan, | |
5910 | .mac_ops = &ich8_mac_ops, | |
5911 | .phy_ops = &ich8_phy_ops, | |
5912 | .nvm_ops = &ich8_nvm_ops, | |
5913 | }; | |
d3738bb8 | 5914 | |
8ce9d6c7 | 5915 | const struct e1000_info e1000_pch2_info = { |
d3738bb8 BA |
5916 | .mac = e1000_pch2lan, |
5917 | .flags = FLAG_IS_ICH | |
5918 | | FLAG_HAS_WOL | |
b67e1913 | 5919 | | FLAG_HAS_HW_TIMESTAMP |
d3738bb8 BA |
5920 | | FLAG_HAS_CTRLEXT_ON_LOAD |
5921 | | FLAG_HAS_AMT | |
5922 | | FLAG_HAS_FLASH | |
5923 | | FLAG_HAS_JUMBO_FRAMES | |
5924 | | FLAG_APME_IN_WUC, | |
e52997f9 | 5925 | .flags2 = FLAG2_HAS_PHY_STATS |
10ed1e0b JW |
5926 | | FLAG2_HAS_EEE |
5927 | | FLAG2_CHECK_SYSTIM_OVERFLOW, | |
828bac87 | 5928 | .pba = 26, |
8084b86d | 5929 | .max_hw_frame_size = 9022, |
d3738bb8 BA |
5930 | .get_variants = e1000_get_variants_ich8lan, |
5931 | .mac_ops = &ich8_mac_ops, | |
5932 | .phy_ops = &ich8_phy_ops, | |
5933 | .nvm_ops = &ich8_nvm_ops, | |
5934 | }; | |
2fbe4526 BA |
5935 | |
5936 | const struct e1000_info e1000_pch_lpt_info = { | |
5937 | .mac = e1000_pch_lpt, | |
5938 | .flags = FLAG_IS_ICH | |
5939 | | FLAG_HAS_WOL | |
b67e1913 | 5940 | | FLAG_HAS_HW_TIMESTAMP |
2fbe4526 BA |
5941 | | FLAG_HAS_CTRLEXT_ON_LOAD |
5942 | | FLAG_HAS_AMT | |
5943 | | FLAG_HAS_FLASH | |
5944 | | FLAG_HAS_JUMBO_FRAMES | |
5945 | | FLAG_APME_IN_WUC, | |
5946 | .flags2 = FLAG2_HAS_PHY_STATS | |
8037dd60 JW |
5947 | | FLAG2_HAS_EEE |
5948 | | FLAG2_CHECK_SYSTIM_OVERFLOW, | |
2fbe4526 | 5949 | .pba = 26, |
8084b86d | 5950 | .max_hw_frame_size = 9022, |
2fbe4526 BA |
5951 | .get_variants = e1000_get_variants_ich8lan, |
5952 | .mac_ops = &ich8_mac_ops, | |
5953 | .phy_ops = &ich8_phy_ops, | |
5954 | .nvm_ops = &ich8_nvm_ops, | |
5955 | }; | |
79849ebc DE |
5956 | |
5957 | const struct e1000_info e1000_pch_spt_info = { | |
5958 | .mac = e1000_pch_spt, | |
5959 | .flags = FLAG_IS_ICH | |
5960 | | FLAG_HAS_WOL | |
5961 | | FLAG_HAS_HW_TIMESTAMP | |
5962 | | FLAG_HAS_CTRLEXT_ON_LOAD | |
5963 | | FLAG_HAS_AMT | |
5964 | | FLAG_HAS_FLASH | |
5965 | | FLAG_HAS_JUMBO_FRAMES | |
5966 | | FLAG_APME_IN_WUC, | |
5967 | .flags2 = FLAG2_HAS_PHY_STATS | |
5968 | | FLAG2_HAS_EEE, | |
5969 | .pba = 26, | |
8084b86d | 5970 | .max_hw_frame_size = 9022, |
79849ebc DE |
5971 | .get_variants = e1000_get_variants_ich8lan, |
5972 | .mac_ops = &ich8_mac_ops, | |
5973 | .phy_ops = &ich8_phy_ops, | |
5974 | .nvm_ops = &spt_nvm_ops, | |
5975 | }; | |
3a3173b9 SN |
5976 | |
5977 | const struct e1000_info e1000_pch_cnp_info = { | |
5978 | .mac = e1000_pch_cnp, | |
5979 | .flags = FLAG_IS_ICH | |
5980 | | FLAG_HAS_WOL | |
5981 | | FLAG_HAS_HW_TIMESTAMP | |
5982 | | FLAG_HAS_CTRLEXT_ON_LOAD | |
5983 | | FLAG_HAS_AMT | |
5984 | | FLAG_HAS_FLASH | |
5985 | | FLAG_HAS_JUMBO_FRAMES | |
5986 | | FLAG_APME_IN_WUC, | |
5987 | .flags2 = FLAG2_HAS_PHY_STATS | |
5988 | | FLAG2_HAS_EEE, | |
5989 | .pba = 26, | |
5990 | .max_hw_frame_size = 9022, | |
5991 | .get_variants = e1000_get_variants_ich8lan, | |
5992 | .mac_ops = &ich8_mac_ops, | |
5993 | .phy_ops = &ich8_phy_ops, | |
5994 | .nvm_ops = &spt_nvm_ops, | |
5995 | }; |