Commit | Line | Data |
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1da177e4 LT |
1 | /******************************************************************************* |
2 | ||
0abb6eb1 AK |
3 | Intel PRO/1000 Linux driver |
4 | Copyright(c) 1999 - 2006 Intel Corporation. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
1da177e4 | 13 | more details. |
0abb6eb1 | 14 | |
1da177e4 | 15 | You should have received a copy of the GNU General Public License along with |
0abb6eb1 AK |
16 | this program; if not, write to the Free Software Foundation, Inc., |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
1da177e4 LT |
22 | Contact Information: |
23 | Linux NICS <linux.nics@intel.com> | |
3d41e30a | 24 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
1da177e4 LT |
25 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
26 | ||
27 | *******************************************************************************/ | |
28 | ||
29 | /* e1000_hw.c | |
30 | * Shared functions for accessing and configuring the MAC | |
31 | */ | |
32 | ||
8fc897b0 | 33 | |
1da177e4 LT |
34 | #include "e1000_hw.h" |
35 | ||
36 | static int32_t e1000_set_phy_type(struct e1000_hw *hw); | |
37 | static void e1000_phy_init_script(struct e1000_hw *hw); | |
38 | static int32_t e1000_setup_copper_link(struct e1000_hw *hw); | |
39 | static int32_t e1000_setup_fiber_serdes_link(struct e1000_hw *hw); | |
40 | static int32_t e1000_adjust_serdes_amplitude(struct e1000_hw *hw); | |
41 | static int32_t e1000_phy_force_speed_duplex(struct e1000_hw *hw); | |
42 | static int32_t e1000_config_mac_to_phy(struct e1000_hw *hw); | |
43 | static void e1000_raise_mdi_clk(struct e1000_hw *hw, uint32_t *ctrl); | |
44 | static void e1000_lower_mdi_clk(struct e1000_hw *hw, uint32_t *ctrl); | |
45 | static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, uint32_t data, | |
46 | uint16_t count); | |
47 | static uint16_t e1000_shift_in_mdi_bits(struct e1000_hw *hw); | |
48 | static int32_t e1000_phy_reset_dsp(struct e1000_hw *hw); | |
49 | static int32_t e1000_write_eeprom_spi(struct e1000_hw *hw, uint16_t offset, | |
50 | uint16_t words, uint16_t *data); | |
51 | static int32_t e1000_write_eeprom_microwire(struct e1000_hw *hw, | |
52 | uint16_t offset, uint16_t words, | |
53 | uint16_t *data); | |
54 | static int32_t e1000_spi_eeprom_ready(struct e1000_hw *hw); | |
55 | static void e1000_raise_ee_clk(struct e1000_hw *hw, uint32_t *eecd); | |
56 | static void e1000_lower_ee_clk(struct e1000_hw *hw, uint32_t *eecd); | |
57 | static void e1000_shift_out_ee_bits(struct e1000_hw *hw, uint16_t data, | |
58 | uint16_t count); | |
59 | static int32_t e1000_write_phy_reg_ex(struct e1000_hw *hw, uint32_t reg_addr, | |
60 | uint16_t phy_data); | |
61 | static int32_t e1000_read_phy_reg_ex(struct e1000_hw *hw,uint32_t reg_addr, | |
62 | uint16_t *phy_data); | |
63 | static uint16_t e1000_shift_in_ee_bits(struct e1000_hw *hw, uint16_t count); | |
64 | static int32_t e1000_acquire_eeprom(struct e1000_hw *hw); | |
65 | static void e1000_release_eeprom(struct e1000_hw *hw); | |
66 | static void e1000_standby_eeprom(struct e1000_hw *hw); | |
1da177e4 LT |
67 | static int32_t e1000_set_vco_speed(struct e1000_hw *hw); |
68 | static int32_t e1000_polarity_reversal_workaround(struct e1000_hw *hw); | |
69 | static int32_t e1000_set_phy_mode(struct e1000_hw *hw); | |
2d7edb92 MC |
70 | static int32_t e1000_host_if_read_cookie(struct e1000_hw *hw, uint8_t *buffer); |
71 | static uint8_t e1000_calculate_mng_checksum(char *buffer, uint32_t length); | |
3ad2cc67 AB |
72 | static uint8_t e1000_arc_subsystem_valid(struct e1000_hw *hw); |
73 | static int32_t e1000_check_downshift(struct e1000_hw *hw); | |
74 | static int32_t e1000_check_polarity(struct e1000_hw *hw, uint16_t *polarity); | |
75 | static void e1000_clear_hw_cntrs(struct e1000_hw *hw); | |
76 | static void e1000_clear_vfta(struct e1000_hw *hw); | |
77 | static int32_t e1000_commit_shadow_ram(struct e1000_hw *hw); | |
78 | static int32_t e1000_config_dsp_after_link_change(struct e1000_hw *hw, | |
79 | boolean_t link_up); | |
80 | static int32_t e1000_config_fc_after_link_up(struct e1000_hw *hw); | |
81 | static int32_t e1000_detect_gig_phy(struct e1000_hw *hw); | |
82 | static int32_t e1000_get_auto_rd_done(struct e1000_hw *hw); | |
83 | static int32_t e1000_get_cable_length(struct e1000_hw *hw, | |
84 | uint16_t *min_length, | |
85 | uint16_t *max_length); | |
86 | static int32_t e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw); | |
87 | static int32_t e1000_get_phy_cfg_done(struct e1000_hw *hw); | |
88 | static int32_t e1000_id_led_init(struct e1000_hw * hw); | |
89 | static void e1000_init_rx_addrs(struct e1000_hw *hw); | |
90 | static boolean_t e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw); | |
91 | static int32_t e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd); | |
92 | static void e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw); | |
93 | static int32_t e1000_read_eeprom_eerd(struct e1000_hw *hw, uint16_t offset, | |
94 | uint16_t words, uint16_t *data); | |
95 | static int32_t e1000_set_d0_lplu_state(struct e1000_hw *hw, boolean_t active); | |
96 | static int32_t e1000_set_d3_lplu_state(struct e1000_hw *hw, boolean_t active); | |
97 | static int32_t e1000_wait_autoneg(struct e1000_hw *hw); | |
98 | ||
99 | static void e1000_write_reg_io(struct e1000_hw *hw, uint32_t offset, | |
100 | uint32_t value); | |
101 | ||
102 | #define E1000_WRITE_REG_IO(a, reg, val) \ | |
103 | e1000_write_reg_io((a), E1000_##reg, val) | |
cd94dd0b AK |
104 | static int32_t e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, |
105 | uint16_t duplex); | |
6418ecc6 | 106 | static int32_t e1000_configure_kmrn_for_1000(struct e1000_hw *hw); |
1da177e4 | 107 | |
e4c780b1 AB |
108 | static int32_t e1000_erase_ich8_4k_segment(struct e1000_hw *hw, |
109 | uint32_t segment); | |
110 | static int32_t e1000_get_software_flag(struct e1000_hw *hw); | |
111 | static int32_t e1000_get_software_semaphore(struct e1000_hw *hw); | |
112 | static int32_t e1000_init_lcd_from_nvm(struct e1000_hw *hw); | |
113 | static int32_t e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw); | |
114 | static int32_t e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, | |
115 | uint16_t words, uint16_t *data); | |
116 | static int32_t e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, | |
117 | uint8_t* data); | |
118 | static int32_t e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, | |
119 | uint16_t *data); | |
120 | static int32_t e1000_read_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, | |
121 | uint16_t *data); | |
122 | static void e1000_release_software_flag(struct e1000_hw *hw); | |
123 | static void e1000_release_software_semaphore(struct e1000_hw *hw); | |
124 | static int32_t e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, | |
125 | uint32_t no_snoop); | |
126 | static int32_t e1000_verify_write_ich8_byte(struct e1000_hw *hw, | |
127 | uint32_t index, uint8_t byte); | |
128 | static int32_t e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, | |
129 | uint16_t words, uint16_t *data); | |
130 | static int32_t e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, | |
131 | uint8_t data); | |
132 | static int32_t e1000_write_kmrn_reg(struct e1000_hw *hw, uint32_t reg_addr, | |
133 | uint16_t data); | |
134 | ||
1da177e4 LT |
135 | /* IGP cable length table */ |
136 | static const | |
137 | uint16_t e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] = | |
138 | { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, | |
139 | 5, 10, 10, 10, 10, 10, 10, 10, 20, 20, 20, 20, 20, 25, 25, 25, | |
140 | 25, 25, 25, 25, 30, 30, 30, 30, 40, 40, 40, 40, 40, 40, 40, 40, | |
141 | 40, 50, 50, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 60, 60, 60, | |
142 | 60, 70, 70, 70, 70, 70, 70, 80, 80, 80, 80, 80, 80, 90, 90, 90, | |
143 | 90, 90, 90, 90, 90, 90, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, | |
144 | 100, 100, 100, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, | |
145 | 110, 110, 110, 110, 110, 110, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120}; | |
146 | ||
2d7edb92 MC |
147 | static const |
148 | uint16_t e1000_igp_2_cable_length_table[IGP02E1000_AGC_LENGTH_TABLE_SIZE] = | |
868d5309 MC |
149 | { 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21, |
150 | 0, 0, 0, 3, 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41, | |
151 | 6, 10, 14, 18, 22, 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61, | |
152 | 21, 26, 31, 35, 40, 44, 49, 53, 57, 61, 65, 68, 72, 75, 79, 82, | |
153 | 40, 45, 51, 56, 61, 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104, | |
154 | 60, 66, 72, 77, 82, 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121, | |
155 | 83, 89, 95, 100, 105, 109, 113, 116, 119, 122, 124, | |
156 | 104, 109, 114, 118, 121, 124}; | |
2d7edb92 | 157 | |
1da177e4 LT |
158 | |
159 | /****************************************************************************** | |
160 | * Set the phy type member in the hw struct. | |
161 | * | |
162 | * hw - Struct containing variables accessed by shared code | |
163 | *****************************************************************************/ | |
164 | int32_t | |
165 | e1000_set_phy_type(struct e1000_hw *hw) | |
166 | { | |
167 | DEBUGFUNC("e1000_set_phy_type"); | |
168 | ||
8fc897b0 | 169 | if (hw->mac_type == e1000_undefined) |
2d7edb92 MC |
170 | return -E1000_ERR_PHY_TYPE; |
171 | ||
8fc897b0 | 172 | switch (hw->phy_id) { |
1da177e4 LT |
173 | case M88E1000_E_PHY_ID: |
174 | case M88E1000_I_PHY_ID: | |
175 | case M88E1011_I_PHY_ID: | |
2d7edb92 | 176 | case M88E1111_I_PHY_ID: |
1da177e4 LT |
177 | hw->phy_type = e1000_phy_m88; |
178 | break; | |
179 | case IGP01E1000_I_PHY_ID: | |
8fc897b0 AK |
180 | if (hw->mac_type == e1000_82541 || |
181 | hw->mac_type == e1000_82541_rev_2 || | |
182 | hw->mac_type == e1000_82547 || | |
183 | hw->mac_type == e1000_82547_rev_2) { | |
1da177e4 LT |
184 | hw->phy_type = e1000_phy_igp; |
185 | break; | |
186 | } | |
cd94dd0b AK |
187 | case IGP03E1000_E_PHY_ID: |
188 | hw->phy_type = e1000_phy_igp_3; | |
189 | break; | |
190 | case IFE_E_PHY_ID: | |
191 | case IFE_PLUS_E_PHY_ID: | |
192 | case IFE_C_E_PHY_ID: | |
193 | hw->phy_type = e1000_phy_ife; | |
194 | break; | |
6418ecc6 JK |
195 | case GG82563_E_PHY_ID: |
196 | if (hw->mac_type == e1000_80003es2lan) { | |
197 | hw->phy_type = e1000_phy_gg82563; | |
198 | break; | |
199 | } | |
1da177e4 LT |
200 | /* Fall Through */ |
201 | default: | |
202 | /* Should never have loaded on this device */ | |
203 | hw->phy_type = e1000_phy_undefined; | |
204 | return -E1000_ERR_PHY_TYPE; | |
205 | } | |
206 | ||
207 | return E1000_SUCCESS; | |
208 | } | |
209 | ||
8fc897b0 | 210 | |
1da177e4 LT |
211 | /****************************************************************************** |
212 | * IGP phy init script - initializes the GbE PHY | |
213 | * | |
214 | * hw - Struct containing variables accessed by shared code | |
215 | *****************************************************************************/ | |
216 | static void | |
217 | e1000_phy_init_script(struct e1000_hw *hw) | |
218 | { | |
219 | uint32_t ret_val; | |
220 | uint16_t phy_saved_data; | |
221 | ||
222 | DEBUGFUNC("e1000_phy_init_script"); | |
223 | ||
8fc897b0 | 224 | if (hw->phy_init_script) { |
f8ec4733 | 225 | msleep(20); |
1da177e4 LT |
226 | |
227 | /* Save off the current value of register 0x2F5B to be restored at | |
228 | * the end of this routine. */ | |
229 | ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); | |
230 | ||
231 | /* Disabled the PHY transmitter */ | |
232 | e1000_write_phy_reg(hw, 0x2F5B, 0x0003); | |
233 | ||
f8ec4733 | 234 | msleep(20); |
1da177e4 LT |
235 | |
236 | e1000_write_phy_reg(hw,0x0000,0x0140); | |
237 | ||
f8ec4733 | 238 | msleep(5); |
1da177e4 | 239 | |
8fc897b0 | 240 | switch (hw->mac_type) { |
1da177e4 LT |
241 | case e1000_82541: |
242 | case e1000_82547: | |
243 | e1000_write_phy_reg(hw, 0x1F95, 0x0001); | |
244 | ||
245 | e1000_write_phy_reg(hw, 0x1F71, 0xBD21); | |
246 | ||
247 | e1000_write_phy_reg(hw, 0x1F79, 0x0018); | |
248 | ||
249 | e1000_write_phy_reg(hw, 0x1F30, 0x1600); | |
250 | ||
251 | e1000_write_phy_reg(hw, 0x1F31, 0x0014); | |
252 | ||
253 | e1000_write_phy_reg(hw, 0x1F32, 0x161C); | |
254 | ||
255 | e1000_write_phy_reg(hw, 0x1F94, 0x0003); | |
256 | ||
257 | e1000_write_phy_reg(hw, 0x1F96, 0x003F); | |
258 | ||
259 | e1000_write_phy_reg(hw, 0x2010, 0x0008); | |
260 | break; | |
261 | ||
262 | case e1000_82541_rev_2: | |
263 | case e1000_82547_rev_2: | |
264 | e1000_write_phy_reg(hw, 0x1F73, 0x0099); | |
265 | break; | |
266 | default: | |
267 | break; | |
268 | } | |
269 | ||
270 | e1000_write_phy_reg(hw, 0x0000, 0x3300); | |
271 | ||
f8ec4733 | 272 | msleep(20); |
1da177e4 LT |
273 | |
274 | /* Now enable the transmitter */ | |
275 | e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); | |
276 | ||
8fc897b0 | 277 | if (hw->mac_type == e1000_82547) { |
1da177e4 LT |
278 | uint16_t fused, fine, coarse; |
279 | ||
280 | /* Move to analog registers page */ | |
281 | e1000_read_phy_reg(hw, IGP01E1000_ANALOG_SPARE_FUSE_STATUS, &fused); | |
282 | ||
8fc897b0 | 283 | if (!(fused & IGP01E1000_ANALOG_SPARE_FUSE_ENABLED)) { |
1da177e4 LT |
284 | e1000_read_phy_reg(hw, IGP01E1000_ANALOG_FUSE_STATUS, &fused); |
285 | ||
286 | fine = fused & IGP01E1000_ANALOG_FUSE_FINE_MASK; | |
287 | coarse = fused & IGP01E1000_ANALOG_FUSE_COARSE_MASK; | |
288 | ||
8fc897b0 | 289 | if (coarse > IGP01E1000_ANALOG_FUSE_COARSE_THRESH) { |
1da177e4 LT |
290 | coarse -= IGP01E1000_ANALOG_FUSE_COARSE_10; |
291 | fine -= IGP01E1000_ANALOG_FUSE_FINE_1; | |
8fc897b0 | 292 | } else if (coarse == IGP01E1000_ANALOG_FUSE_COARSE_THRESH) |
1da177e4 LT |
293 | fine -= IGP01E1000_ANALOG_FUSE_FINE_10; |
294 | ||
295 | fused = (fused & IGP01E1000_ANALOG_FUSE_POLY_MASK) | | |
296 | (fine & IGP01E1000_ANALOG_FUSE_FINE_MASK) | | |
297 | (coarse & IGP01E1000_ANALOG_FUSE_COARSE_MASK); | |
298 | ||
299 | e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_CONTROL, fused); | |
300 | e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_BYPASS, | |
301 | IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL); | |
302 | } | |
303 | } | |
304 | } | |
305 | } | |
306 | ||
307 | /****************************************************************************** | |
308 | * Set the mac type member in the hw struct. | |
309 | * | |
310 | * hw - Struct containing variables accessed by shared code | |
311 | *****************************************************************************/ | |
312 | int32_t | |
313 | e1000_set_mac_type(struct e1000_hw *hw) | |
314 | { | |
315 | DEBUGFUNC("e1000_set_mac_type"); | |
316 | ||
317 | switch (hw->device_id) { | |
318 | case E1000_DEV_ID_82542: | |
319 | switch (hw->revision_id) { | |
320 | case E1000_82542_2_0_REV_ID: | |
321 | hw->mac_type = e1000_82542_rev2_0; | |
322 | break; | |
323 | case E1000_82542_2_1_REV_ID: | |
324 | hw->mac_type = e1000_82542_rev2_1; | |
325 | break; | |
326 | default: | |
327 | /* Invalid 82542 revision ID */ | |
328 | return -E1000_ERR_MAC_TYPE; | |
329 | } | |
330 | break; | |
331 | case E1000_DEV_ID_82543GC_FIBER: | |
332 | case E1000_DEV_ID_82543GC_COPPER: | |
333 | hw->mac_type = e1000_82543; | |
334 | break; | |
335 | case E1000_DEV_ID_82544EI_COPPER: | |
336 | case E1000_DEV_ID_82544EI_FIBER: | |
337 | case E1000_DEV_ID_82544GC_COPPER: | |
338 | case E1000_DEV_ID_82544GC_LOM: | |
339 | hw->mac_type = e1000_82544; | |
340 | break; | |
341 | case E1000_DEV_ID_82540EM: | |
342 | case E1000_DEV_ID_82540EM_LOM: | |
343 | case E1000_DEV_ID_82540EP: | |
344 | case E1000_DEV_ID_82540EP_LOM: | |
345 | case E1000_DEV_ID_82540EP_LP: | |
346 | hw->mac_type = e1000_82540; | |
347 | break; | |
348 | case E1000_DEV_ID_82545EM_COPPER: | |
349 | case E1000_DEV_ID_82545EM_FIBER: | |
350 | hw->mac_type = e1000_82545; | |
351 | break; | |
352 | case E1000_DEV_ID_82545GM_COPPER: | |
353 | case E1000_DEV_ID_82545GM_FIBER: | |
354 | case E1000_DEV_ID_82545GM_SERDES: | |
355 | hw->mac_type = e1000_82545_rev_3; | |
356 | break; | |
357 | case E1000_DEV_ID_82546EB_COPPER: | |
358 | case E1000_DEV_ID_82546EB_FIBER: | |
359 | case E1000_DEV_ID_82546EB_QUAD_COPPER: | |
360 | hw->mac_type = e1000_82546; | |
361 | break; | |
362 | case E1000_DEV_ID_82546GB_COPPER: | |
363 | case E1000_DEV_ID_82546GB_FIBER: | |
364 | case E1000_DEV_ID_82546GB_SERDES: | |
365 | case E1000_DEV_ID_82546GB_PCIE: | |
b7ee49db JK |
366 | case E1000_DEV_ID_82546GB_QUAD_COPPER: |
367 | case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: | |
1da177e4 LT |
368 | hw->mac_type = e1000_82546_rev_3; |
369 | break; | |
370 | case E1000_DEV_ID_82541EI: | |
371 | case E1000_DEV_ID_82541EI_MOBILE: | |
cd94dd0b | 372 | case E1000_DEV_ID_82541ER_LOM: |
1da177e4 LT |
373 | hw->mac_type = e1000_82541; |
374 | break; | |
375 | case E1000_DEV_ID_82541ER: | |
376 | case E1000_DEV_ID_82541GI: | |
377 | case E1000_DEV_ID_82541GI_LF: | |
378 | case E1000_DEV_ID_82541GI_MOBILE: | |
379 | hw->mac_type = e1000_82541_rev_2; | |
380 | break; | |
381 | case E1000_DEV_ID_82547EI: | |
cd94dd0b | 382 | case E1000_DEV_ID_82547EI_MOBILE: |
1da177e4 LT |
383 | hw->mac_type = e1000_82547; |
384 | break; | |
385 | case E1000_DEV_ID_82547GI: | |
386 | hw->mac_type = e1000_82547_rev_2; | |
387 | break; | |
868d5309 MC |
388 | case E1000_DEV_ID_82571EB_COPPER: |
389 | case E1000_DEV_ID_82571EB_FIBER: | |
390 | case E1000_DEV_ID_82571EB_SERDES: | |
5881cde8 | 391 | case E1000_DEV_ID_82571EB_QUAD_COPPER: |
868d5309 MC |
392 | hw->mac_type = e1000_82571; |
393 | break; | |
394 | case E1000_DEV_ID_82572EI_COPPER: | |
395 | case E1000_DEV_ID_82572EI_FIBER: | |
396 | case E1000_DEV_ID_82572EI_SERDES: | |
cd94dd0b | 397 | case E1000_DEV_ID_82572EI: |
868d5309 MC |
398 | hw->mac_type = e1000_82572; |
399 | break; | |
2d7edb92 MC |
400 | case E1000_DEV_ID_82573E: |
401 | case E1000_DEV_ID_82573E_IAMT: | |
868d5309 | 402 | case E1000_DEV_ID_82573L: |
2d7edb92 MC |
403 | hw->mac_type = e1000_82573; |
404 | break; | |
cd94dd0b AK |
405 | case E1000_DEV_ID_80003ES2LAN_COPPER_SPT: |
406 | case E1000_DEV_ID_80003ES2LAN_SERDES_SPT: | |
6418ecc6 JK |
407 | case E1000_DEV_ID_80003ES2LAN_COPPER_DPT: |
408 | case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: | |
409 | hw->mac_type = e1000_80003es2lan; | |
410 | break; | |
cd94dd0b AK |
411 | case E1000_DEV_ID_ICH8_IGP_M_AMT: |
412 | case E1000_DEV_ID_ICH8_IGP_AMT: | |
413 | case E1000_DEV_ID_ICH8_IGP_C: | |
414 | case E1000_DEV_ID_ICH8_IFE: | |
415 | case E1000_DEV_ID_ICH8_IGP_M: | |
416 | hw->mac_type = e1000_ich8lan; | |
417 | break; | |
1da177e4 LT |
418 | default: |
419 | /* Should never have loaded on this device */ | |
420 | return -E1000_ERR_MAC_TYPE; | |
421 | } | |
422 | ||
8fc897b0 | 423 | switch (hw->mac_type) { |
cd94dd0b AK |
424 | case e1000_ich8lan: |
425 | hw->swfwhw_semaphore_present = TRUE; | |
426 | hw->asf_firmware_present = TRUE; | |
427 | break; | |
6418ecc6 JK |
428 | case e1000_80003es2lan: |
429 | hw->swfw_sync_present = TRUE; | |
430 | /* fall through */ | |
868d5309 MC |
431 | case e1000_82571: |
432 | case e1000_82572: | |
2d7edb92 MC |
433 | case e1000_82573: |
434 | hw->eeprom_semaphore_present = TRUE; | |
435 | /* fall through */ | |
1da177e4 LT |
436 | case e1000_82541: |
437 | case e1000_82547: | |
438 | case e1000_82541_rev_2: | |
439 | case e1000_82547_rev_2: | |
440 | hw->asf_firmware_present = TRUE; | |
441 | break; | |
442 | default: | |
443 | break; | |
444 | } | |
445 | ||
446 | return E1000_SUCCESS; | |
447 | } | |
448 | ||
449 | /***************************************************************************** | |
450 | * Set media type and TBI compatibility. | |
451 | * | |
452 | * hw - Struct containing variables accessed by shared code | |
453 | * **************************************************************************/ | |
454 | void | |
455 | e1000_set_media_type(struct e1000_hw *hw) | |
456 | { | |
457 | uint32_t status; | |
458 | ||
459 | DEBUGFUNC("e1000_set_media_type"); | |
460 | ||
8fc897b0 | 461 | if (hw->mac_type != e1000_82543) { |
1da177e4 LT |
462 | /* tbi_compatibility is only valid on 82543 */ |
463 | hw->tbi_compatibility_en = FALSE; | |
464 | } | |
465 | ||
466 | switch (hw->device_id) { | |
467 | case E1000_DEV_ID_82545GM_SERDES: | |
468 | case E1000_DEV_ID_82546GB_SERDES: | |
868d5309 MC |
469 | case E1000_DEV_ID_82571EB_SERDES: |
470 | case E1000_DEV_ID_82572EI_SERDES: | |
6418ecc6 | 471 | case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: |
1da177e4 LT |
472 | hw->media_type = e1000_media_type_internal_serdes; |
473 | break; | |
474 | default: | |
3893d547 MC |
475 | switch (hw->mac_type) { |
476 | case e1000_82542_rev2_0: | |
477 | case e1000_82542_rev2_1: | |
478 | hw->media_type = e1000_media_type_fiber; | |
479 | break; | |
cd94dd0b | 480 | case e1000_ich8lan: |
3893d547 MC |
481 | case e1000_82573: |
482 | /* The STATUS_TBIMODE bit is reserved or reused for the this | |
483 | * device. | |
484 | */ | |
485 | hw->media_type = e1000_media_type_copper; | |
486 | break; | |
487 | default: | |
1da177e4 | 488 | status = E1000_READ_REG(hw, STATUS); |
3893d547 | 489 | if (status & E1000_STATUS_TBIMODE) { |
1da177e4 LT |
490 | hw->media_type = e1000_media_type_fiber; |
491 | /* tbi_compatibility not valid on fiber */ | |
492 | hw->tbi_compatibility_en = FALSE; | |
493 | } else { | |
494 | hw->media_type = e1000_media_type_copper; | |
495 | } | |
3893d547 | 496 | break; |
1da177e4 LT |
497 | } |
498 | } | |
499 | } | |
500 | ||
501 | /****************************************************************************** | |
502 | * Reset the transmit and receive units; mask and clear all interrupts. | |
503 | * | |
504 | * hw - Struct containing variables accessed by shared code | |
505 | *****************************************************************************/ | |
506 | int32_t | |
507 | e1000_reset_hw(struct e1000_hw *hw) | |
508 | { | |
509 | uint32_t ctrl; | |
510 | uint32_t ctrl_ext; | |
511 | uint32_t icr; | |
512 | uint32_t manc; | |
513 | uint32_t led_ctrl; | |
2d7edb92 MC |
514 | uint32_t timeout; |
515 | uint32_t extcnf_ctrl; | |
516 | int32_t ret_val; | |
1da177e4 LT |
517 | |
518 | DEBUGFUNC("e1000_reset_hw"); | |
519 | ||
520 | /* For 82542 (rev 2.0), disable MWI before issuing a device reset */ | |
8fc897b0 | 521 | if (hw->mac_type == e1000_82542_rev2_0) { |
1da177e4 LT |
522 | DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); |
523 | e1000_pci_clear_mwi(hw); | |
524 | } | |
525 | ||
8fc897b0 | 526 | if (hw->bus_type == e1000_bus_type_pci_express) { |
2d7edb92 MC |
527 | /* Prevent the PCI-E bus from sticking if there is no TLP connection |
528 | * on the last TLP read/write transaction when MAC is reset. | |
529 | */ | |
8fc897b0 | 530 | if (e1000_disable_pciex_master(hw) != E1000_SUCCESS) { |
2d7edb92 MC |
531 | DEBUGOUT("PCI-E Master disable polling has failed.\n"); |
532 | } | |
533 | } | |
534 | ||
1da177e4 LT |
535 | /* Clear interrupt mask to stop board from generating interrupts */ |
536 | DEBUGOUT("Masking off all interrupts\n"); | |
537 | E1000_WRITE_REG(hw, IMC, 0xffffffff); | |
538 | ||
539 | /* Disable the Transmit and Receive units. Then delay to allow | |
540 | * any pending transactions to complete before we hit the MAC with | |
541 | * the global reset. | |
542 | */ | |
543 | E1000_WRITE_REG(hw, RCTL, 0); | |
544 | E1000_WRITE_REG(hw, TCTL, E1000_TCTL_PSP); | |
545 | E1000_WRITE_FLUSH(hw); | |
546 | ||
547 | /* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */ | |
548 | hw->tbi_compatibility_on = FALSE; | |
549 | ||
550 | /* Delay to allow any outstanding PCI transactions to complete before | |
551 | * resetting the device | |
552 | */ | |
f8ec4733 | 553 | msleep(10); |
1da177e4 LT |
554 | |
555 | ctrl = E1000_READ_REG(hw, CTRL); | |
556 | ||
557 | /* Must reset the PHY before resetting the MAC */ | |
8fc897b0 | 558 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
2d7edb92 | 559 | E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_PHY_RST)); |
f8ec4733 | 560 | msleep(5); |
1da177e4 LT |
561 | } |
562 | ||
2d7edb92 MC |
563 | /* Must acquire the MDIO ownership before MAC reset. |
564 | * Ownership defaults to firmware after a reset. */ | |
8fc897b0 | 565 | if (hw->mac_type == e1000_82573) { |
2d7edb92 MC |
566 | timeout = 10; |
567 | ||
568 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
569 | extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; | |
570 | ||
571 | do { | |
572 | E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl); | |
573 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
574 | ||
8fc897b0 | 575 | if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP) |
2d7edb92 MC |
576 | break; |
577 | else | |
578 | extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; | |
579 | ||
f8ec4733 | 580 | msleep(2); |
2d7edb92 | 581 | timeout--; |
8fc897b0 | 582 | } while (timeout); |
2d7edb92 MC |
583 | } |
584 | ||
cd94dd0b AK |
585 | /* Workaround for ICH8 bit corruption issue in FIFO memory */ |
586 | if (hw->mac_type == e1000_ich8lan) { | |
587 | /* Set Tx and Rx buffer allocation to 8k apiece. */ | |
588 | E1000_WRITE_REG(hw, PBA, E1000_PBA_8K); | |
589 | /* Set Packet Buffer Size to 16k. */ | |
590 | E1000_WRITE_REG(hw, PBS, E1000_PBS_16K); | |
591 | } | |
592 | ||
1da177e4 LT |
593 | /* Issue a global reset to the MAC. This will reset the chip's |
594 | * transmit, receive, DMA, and link units. It will not effect | |
595 | * the current PCI configuration. The global reset bit is self- | |
596 | * clearing, and should clear within a microsecond. | |
597 | */ | |
598 | DEBUGOUT("Issuing a global reset to MAC\n"); | |
599 | ||
8fc897b0 | 600 | switch (hw->mac_type) { |
1da177e4 LT |
601 | case e1000_82544: |
602 | case e1000_82540: | |
603 | case e1000_82545: | |
604 | case e1000_82546: | |
605 | case e1000_82541: | |
606 | case e1000_82541_rev_2: | |
607 | /* These controllers can't ack the 64-bit write when issuing the | |
608 | * reset, so use IO-mapping as a workaround to issue the reset */ | |
609 | E1000_WRITE_REG_IO(hw, CTRL, (ctrl | E1000_CTRL_RST)); | |
610 | break; | |
611 | case e1000_82545_rev_3: | |
612 | case e1000_82546_rev_3: | |
613 | /* Reset is performed on a shadow of the control register */ | |
614 | E1000_WRITE_REG(hw, CTRL_DUP, (ctrl | E1000_CTRL_RST)); | |
615 | break; | |
cd94dd0b AK |
616 | case e1000_ich8lan: |
617 | if (!hw->phy_reset_disable && | |
618 | e1000_check_phy_reset_block(hw) == E1000_SUCCESS) { | |
619 | /* e1000_ich8lan PHY HW reset requires MAC CORE reset | |
620 | * at the same time to make sure the interface between | |
621 | * MAC and the external PHY is reset. | |
622 | */ | |
623 | ctrl |= E1000_CTRL_PHY_RST; | |
624 | } | |
625 | ||
626 | e1000_get_software_flag(hw); | |
627 | E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_RST)); | |
f8ec4733 | 628 | msleep(5); |
cd94dd0b | 629 | break; |
1da177e4 LT |
630 | default: |
631 | E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_RST)); | |
632 | break; | |
633 | } | |
634 | ||
635 | /* After MAC reset, force reload of EEPROM to restore power-on settings to | |
636 | * device. Later controllers reload the EEPROM automatically, so just wait | |
637 | * for reload to complete. | |
638 | */ | |
8fc897b0 | 639 | switch (hw->mac_type) { |
1da177e4 LT |
640 | case e1000_82542_rev2_0: |
641 | case e1000_82542_rev2_1: | |
642 | case e1000_82543: | |
643 | case e1000_82544: | |
644 | /* Wait for reset to complete */ | |
645 | udelay(10); | |
646 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
647 | ctrl_ext |= E1000_CTRL_EXT_EE_RST; | |
648 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
649 | E1000_WRITE_FLUSH(hw); | |
650 | /* Wait for EEPROM reload */ | |
f8ec4733 | 651 | msleep(2); |
1da177e4 LT |
652 | break; |
653 | case e1000_82541: | |
654 | case e1000_82541_rev_2: | |
655 | case e1000_82547: | |
656 | case e1000_82547_rev_2: | |
657 | /* Wait for EEPROM reload */ | |
f8ec4733 | 658 | msleep(20); |
1da177e4 | 659 | break; |
2d7edb92 | 660 | case e1000_82573: |
fd803241 JK |
661 | if (e1000_is_onboard_nvm_eeprom(hw) == FALSE) { |
662 | udelay(10); | |
663 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
664 | ctrl_ext |= E1000_CTRL_EXT_EE_RST; | |
665 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
666 | E1000_WRITE_FLUSH(hw); | |
667 | } | |
2d7edb92 | 668 | /* fall through */ |
868d5309 MC |
669 | case e1000_82571: |
670 | case e1000_82572: | |
cd94dd0b | 671 | case e1000_ich8lan: |
6418ecc6 | 672 | case e1000_80003es2lan: |
2d7edb92 | 673 | ret_val = e1000_get_auto_rd_done(hw); |
8fc897b0 | 674 | if (ret_val) |
2d7edb92 MC |
675 | /* We don't want to continue accessing MAC registers. */ |
676 | return ret_val; | |
677 | break; | |
1da177e4 LT |
678 | default: |
679 | /* Wait for EEPROM reload (it happens automatically) */ | |
f8ec4733 | 680 | msleep(5); |
1da177e4 LT |
681 | break; |
682 | } | |
683 | ||
684 | /* Disable HW ARPs on ASF enabled adapters */ | |
8fc897b0 | 685 | if (hw->mac_type >= e1000_82540 && hw->mac_type <= e1000_82547_rev_2) { |
1da177e4 LT |
686 | manc = E1000_READ_REG(hw, MANC); |
687 | manc &= ~(E1000_MANC_ARP_EN); | |
688 | E1000_WRITE_REG(hw, MANC, manc); | |
689 | } | |
690 | ||
8fc897b0 | 691 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
1da177e4 LT |
692 | e1000_phy_init_script(hw); |
693 | ||
694 | /* Configure activity LED after PHY reset */ | |
695 | led_ctrl = E1000_READ_REG(hw, LEDCTL); | |
696 | led_ctrl &= IGP_ACTIVITY_LED_MASK; | |
697 | led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); | |
698 | E1000_WRITE_REG(hw, LEDCTL, led_ctrl); | |
699 | } | |
700 | ||
701 | /* Clear interrupt mask to stop board from generating interrupts */ | |
702 | DEBUGOUT("Masking off all interrupts\n"); | |
703 | E1000_WRITE_REG(hw, IMC, 0xffffffff); | |
704 | ||
705 | /* Clear any pending interrupt events. */ | |
706 | icr = E1000_READ_REG(hw, ICR); | |
707 | ||
708 | /* If MWI was previously enabled, reenable it. */ | |
8fc897b0 | 709 | if (hw->mac_type == e1000_82542_rev2_0) { |
f8ec4733 | 710 | if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) |
1da177e4 LT |
711 | e1000_pci_set_mwi(hw); |
712 | } | |
713 | ||
cd94dd0b AK |
714 | if (hw->mac_type == e1000_ich8lan) { |
715 | uint32_t kab = E1000_READ_REG(hw, KABGTXD); | |
716 | kab |= E1000_KABGTXD_BGSQLBIAS; | |
717 | E1000_WRITE_REG(hw, KABGTXD, kab); | |
718 | } | |
719 | ||
1da177e4 LT |
720 | return E1000_SUCCESS; |
721 | } | |
722 | ||
723 | /****************************************************************************** | |
724 | * Performs basic configuration of the adapter. | |
725 | * | |
726 | * hw - Struct containing variables accessed by shared code | |
727 | * | |
728 | * Assumes that the controller has previously been reset and is in a | |
729 | * post-reset uninitialized state. Initializes the receive address registers, | |
730 | * multicast table, and VLAN filter table. Calls routines to setup link | |
731 | * configuration and flow control settings. Clears all on-chip counters. Leaves | |
732 | * the transmit and receive units disabled and uninitialized. | |
733 | *****************************************************************************/ | |
734 | int32_t | |
735 | e1000_init_hw(struct e1000_hw *hw) | |
736 | { | |
737 | uint32_t ctrl; | |
738 | uint32_t i; | |
739 | int32_t ret_val; | |
740 | uint16_t pcix_cmd_word; | |
741 | uint16_t pcix_stat_hi_word; | |
742 | uint16_t cmd_mmrbc; | |
743 | uint16_t stat_mmrbc; | |
2d7edb92 | 744 | uint32_t mta_size; |
6418ecc6 | 745 | uint32_t reg_data; |
b7ee49db | 746 | uint32_t ctrl_ext; |
2d7edb92 | 747 | |
1da177e4 LT |
748 | DEBUGFUNC("e1000_init_hw"); |
749 | ||
7820d428 JK |
750 | /* force full DMA clock frequency for 10/100 on ICH8 A0-B0 */ |
751 | if (hw->mac_type == e1000_ich8lan) { | |
752 | reg_data = E1000_READ_REG(hw, TARC0); | |
753 | reg_data |= 0x30000000; | |
754 | E1000_WRITE_REG(hw, TARC0, reg_data); | |
755 | ||
756 | reg_data = E1000_READ_REG(hw, STATUS); | |
757 | reg_data &= ~0x80000000; | |
758 | E1000_WRITE_REG(hw, STATUS, reg_data); | |
759 | } | |
760 | ||
1da177e4 LT |
761 | /* Initialize Identification LED */ |
762 | ret_val = e1000_id_led_init(hw); | |
8fc897b0 | 763 | if (ret_val) { |
1da177e4 LT |
764 | DEBUGOUT("Error Initializing Identification LED\n"); |
765 | return ret_val; | |
766 | } | |
767 | ||
768 | /* Set the media type and TBI compatibility */ | |
769 | e1000_set_media_type(hw); | |
770 | ||
771 | /* Disabling VLAN filtering. */ | |
772 | DEBUGOUT("Initializing the IEEE VLAN\n"); | |
cd94dd0b AK |
773 | /* VET hardcoded to standard value and VFTA removed in ICH8 LAN */ |
774 | if (hw->mac_type != e1000_ich8lan) { | |
775 | if (hw->mac_type < e1000_82545_rev_3) | |
776 | E1000_WRITE_REG(hw, VET, 0); | |
777 | e1000_clear_vfta(hw); | |
778 | } | |
1da177e4 LT |
779 | |
780 | /* For 82542 (rev 2.0), disable MWI and put the receiver into reset */ | |
8fc897b0 | 781 | if (hw->mac_type == e1000_82542_rev2_0) { |
1da177e4 LT |
782 | DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); |
783 | e1000_pci_clear_mwi(hw); | |
784 | E1000_WRITE_REG(hw, RCTL, E1000_RCTL_RST); | |
785 | E1000_WRITE_FLUSH(hw); | |
f8ec4733 | 786 | msleep(5); |
1da177e4 LT |
787 | } |
788 | ||
789 | /* Setup the receive address. This involves initializing all of the Receive | |
790 | * Address Registers (RARs 0 - 15). | |
791 | */ | |
792 | e1000_init_rx_addrs(hw); | |
793 | ||
794 | /* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */ | |
8fc897b0 | 795 | if (hw->mac_type == e1000_82542_rev2_0) { |
1da177e4 LT |
796 | E1000_WRITE_REG(hw, RCTL, 0); |
797 | E1000_WRITE_FLUSH(hw); | |
f8ec4733 JG |
798 | msleep(1); |
799 | if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) | |
1da177e4 LT |
800 | e1000_pci_set_mwi(hw); |
801 | } | |
802 | ||
803 | /* Zero out the Multicast HASH table */ | |
804 | DEBUGOUT("Zeroing the MTA\n"); | |
2d7edb92 | 805 | mta_size = E1000_MC_TBL_SIZE; |
cd94dd0b AK |
806 | if (hw->mac_type == e1000_ich8lan) |
807 | mta_size = E1000_MC_TBL_SIZE_ICH8LAN; | |
8fc897b0 | 808 | for (i = 0; i < mta_size; i++) { |
1da177e4 | 809 | E1000_WRITE_REG_ARRAY(hw, MTA, i, 0); |
4ca213a6 AK |
810 | /* use write flush to prevent Memory Write Block (MWB) from |
811 | * occuring when accessing our register space */ | |
812 | E1000_WRITE_FLUSH(hw); | |
813 | } | |
1da177e4 LT |
814 | |
815 | /* Set the PCI priority bit correctly in the CTRL register. This | |
816 | * determines if the adapter gives priority to receives, or if it | |
2d7edb92 MC |
817 | * gives equal priority to transmits and receives. Valid only on |
818 | * 82542 and 82543 silicon. | |
1da177e4 | 819 | */ |
8fc897b0 | 820 | if (hw->dma_fairness && hw->mac_type <= e1000_82543) { |
1da177e4 LT |
821 | ctrl = E1000_READ_REG(hw, CTRL); |
822 | E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PRIOR); | |
823 | } | |
824 | ||
8fc897b0 | 825 | switch (hw->mac_type) { |
1da177e4 LT |
826 | case e1000_82545_rev_3: |
827 | case e1000_82546_rev_3: | |
828 | break; | |
829 | default: | |
830 | /* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */ | |
8fc897b0 | 831 | if (hw->bus_type == e1000_bus_type_pcix) { |
1da177e4 LT |
832 | e1000_read_pci_cfg(hw, PCIX_COMMAND_REGISTER, &pcix_cmd_word); |
833 | e1000_read_pci_cfg(hw, PCIX_STATUS_REGISTER_HI, | |
834 | &pcix_stat_hi_word); | |
835 | cmd_mmrbc = (pcix_cmd_word & PCIX_COMMAND_MMRBC_MASK) >> | |
836 | PCIX_COMMAND_MMRBC_SHIFT; | |
837 | stat_mmrbc = (pcix_stat_hi_word & PCIX_STATUS_HI_MMRBC_MASK) >> | |
838 | PCIX_STATUS_HI_MMRBC_SHIFT; | |
8fc897b0 | 839 | if (stat_mmrbc == PCIX_STATUS_HI_MMRBC_4K) |
1da177e4 | 840 | stat_mmrbc = PCIX_STATUS_HI_MMRBC_2K; |
8fc897b0 | 841 | if (cmd_mmrbc > stat_mmrbc) { |
1da177e4 LT |
842 | pcix_cmd_word &= ~PCIX_COMMAND_MMRBC_MASK; |
843 | pcix_cmd_word |= stat_mmrbc << PCIX_COMMAND_MMRBC_SHIFT; | |
844 | e1000_write_pci_cfg(hw, PCIX_COMMAND_REGISTER, | |
845 | &pcix_cmd_word); | |
846 | } | |
847 | } | |
848 | break; | |
849 | } | |
850 | ||
cd94dd0b AK |
851 | /* More time needed for PHY to initialize */ |
852 | if (hw->mac_type == e1000_ich8lan) | |
f8ec4733 | 853 | msleep(15); |
cd94dd0b | 854 | |
1da177e4 LT |
855 | /* Call a subroutine to configure the link and setup flow control. */ |
856 | ret_val = e1000_setup_link(hw); | |
857 | ||
858 | /* Set the transmit descriptor write-back policy */ | |
8fc897b0 | 859 | if (hw->mac_type > e1000_82544) { |
1da177e4 LT |
860 | ctrl = E1000_READ_REG(hw, TXDCTL); |
861 | ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; | |
2d7edb92 MC |
862 | switch (hw->mac_type) { |
863 | default: | |
864 | break; | |
868d5309 MC |
865 | case e1000_82571: |
866 | case e1000_82572: | |
2d7edb92 | 867 | case e1000_82573: |
cd94dd0b | 868 | case e1000_ich8lan: |
6418ecc6 | 869 | case e1000_80003es2lan: |
2d7edb92 MC |
870 | ctrl |= E1000_TXDCTL_COUNT_DESC; |
871 | break; | |
872 | } | |
1da177e4 LT |
873 | E1000_WRITE_REG(hw, TXDCTL, ctrl); |
874 | } | |
875 | ||
2d7edb92 | 876 | if (hw->mac_type == e1000_82573) { |
76c224bc | 877 | e1000_enable_tx_pkt_filtering(hw); |
2d7edb92 MC |
878 | } |
879 | ||
868d5309 MC |
880 | switch (hw->mac_type) { |
881 | default: | |
882 | break; | |
6418ecc6 JK |
883 | case e1000_80003es2lan: |
884 | /* Enable retransmit on late collisions */ | |
885 | reg_data = E1000_READ_REG(hw, TCTL); | |
886 | reg_data |= E1000_TCTL_RTLC; | |
887 | E1000_WRITE_REG(hw, TCTL, reg_data); | |
888 | ||
889 | /* Configure Gigabit Carry Extend Padding */ | |
890 | reg_data = E1000_READ_REG(hw, TCTL_EXT); | |
891 | reg_data &= ~E1000_TCTL_EXT_GCEX_MASK; | |
892 | reg_data |= DEFAULT_80003ES2LAN_TCTL_EXT_GCEX; | |
893 | E1000_WRITE_REG(hw, TCTL_EXT, reg_data); | |
894 | ||
895 | /* Configure Transmit Inter-Packet Gap */ | |
896 | reg_data = E1000_READ_REG(hw, TIPG); | |
897 | reg_data &= ~E1000_TIPG_IPGT_MASK; | |
898 | reg_data |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; | |
899 | E1000_WRITE_REG(hw, TIPG, reg_data); | |
900 | ||
901 | reg_data = E1000_READ_REG_ARRAY(hw, FFLT, 0x0001); | |
902 | reg_data &= ~0x00100000; | |
903 | E1000_WRITE_REG_ARRAY(hw, FFLT, 0x0001, reg_data); | |
904 | /* Fall through */ | |
868d5309 | 905 | case e1000_82571: |
a7990ba6 | 906 | case e1000_82572: |
cd94dd0b | 907 | case e1000_ich8lan: |
868d5309 | 908 | ctrl = E1000_READ_REG(hw, TXDCTL1); |
6418ecc6 | 909 | ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; |
8fc897b0 | 910 | if (hw->mac_type >= e1000_82571) |
6418ecc6 | 911 | ctrl |= E1000_TXDCTL_COUNT_DESC; |
868d5309 MC |
912 | E1000_WRITE_REG(hw, TXDCTL1, ctrl); |
913 | break; | |
914 | } | |
915 | ||
916 | ||
868d5309 MC |
917 | if (hw->mac_type == e1000_82573) { |
918 | uint32_t gcr = E1000_READ_REG(hw, GCR); | |
919 | gcr |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX; | |
920 | E1000_WRITE_REG(hw, GCR, gcr); | |
921 | } | |
2d7edb92 | 922 | |
1da177e4 LT |
923 | /* Clear all of the statistics registers (clear on read). It is |
924 | * important that we do this after we have tried to establish link | |
925 | * because the symbol error count will increment wildly if there | |
926 | * is no link. | |
927 | */ | |
928 | e1000_clear_hw_cntrs(hw); | |
929 | ||
cd94dd0b AK |
930 | /* ICH8 No-snoop bits are opposite polarity. |
931 | * Set to snoop by default after reset. */ | |
932 | if (hw->mac_type == e1000_ich8lan) | |
933 | e1000_set_pci_ex_no_snoop(hw, PCI_EX_82566_SNOOP_ALL); | |
934 | ||
b7ee49db JK |
935 | if (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER || |
936 | hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3) { | |
937 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
938 | /* Relaxed ordering must be disabled to avoid a parity | |
939 | * error crash in a PCI slot. */ | |
940 | ctrl_ext |= E1000_CTRL_EXT_RO_DIS; | |
941 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
942 | } | |
943 | ||
1da177e4 LT |
944 | return ret_val; |
945 | } | |
946 | ||
947 | /****************************************************************************** | |
948 | * Adjust SERDES output amplitude based on EEPROM setting. | |
949 | * | |
950 | * hw - Struct containing variables accessed by shared code. | |
951 | *****************************************************************************/ | |
952 | static int32_t | |
953 | e1000_adjust_serdes_amplitude(struct e1000_hw *hw) | |
954 | { | |
955 | uint16_t eeprom_data; | |
956 | int32_t ret_val; | |
957 | ||
958 | DEBUGFUNC("e1000_adjust_serdes_amplitude"); | |
959 | ||
8fc897b0 | 960 | if (hw->media_type != e1000_media_type_internal_serdes) |
1da177e4 LT |
961 | return E1000_SUCCESS; |
962 | ||
8fc897b0 | 963 | switch (hw->mac_type) { |
1da177e4 LT |
964 | case e1000_82545_rev_3: |
965 | case e1000_82546_rev_3: | |
966 | break; | |
967 | default: | |
968 | return E1000_SUCCESS; | |
969 | } | |
970 | ||
971 | ret_val = e1000_read_eeprom(hw, EEPROM_SERDES_AMPLITUDE, 1, &eeprom_data); | |
972 | if (ret_val) { | |
973 | return ret_val; | |
974 | } | |
975 | ||
8fc897b0 | 976 | if (eeprom_data != EEPROM_RESERVED_WORD) { |
1da177e4 | 977 | /* Adjust SERDES output amplitude only. */ |
76c224bc | 978 | eeprom_data &= EEPROM_SERDES_AMPLITUDE_MASK; |
1da177e4 | 979 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_EXT_CTRL, eeprom_data); |
8fc897b0 | 980 | if (ret_val) |
1da177e4 LT |
981 | return ret_val; |
982 | } | |
983 | ||
984 | return E1000_SUCCESS; | |
985 | } | |
986 | ||
987 | /****************************************************************************** | |
988 | * Configures flow control and link settings. | |
989 | * | |
990 | * hw - Struct containing variables accessed by shared code | |
991 | * | |
992 | * Determines which flow control settings to use. Calls the apropriate media- | |
993 | * specific link configuration function. Configures the flow control settings. | |
994 | * Assuming the adapter has a valid link partner, a valid link should be | |
995 | * established. Assumes the hardware has previously been reset and the | |
996 | * transmitter and receiver are not enabled. | |
997 | *****************************************************************************/ | |
998 | int32_t | |
999 | e1000_setup_link(struct e1000_hw *hw) | |
1000 | { | |
1001 | uint32_t ctrl_ext; | |
1002 | int32_t ret_val; | |
1003 | uint16_t eeprom_data; | |
1004 | ||
1005 | DEBUGFUNC("e1000_setup_link"); | |
1006 | ||
526f9957 JK |
1007 | /* In the case of the phy reset being blocked, we already have a link. |
1008 | * We do not have to set it up again. */ | |
1009 | if (e1000_check_phy_reset_block(hw)) | |
1010 | return E1000_SUCCESS; | |
1011 | ||
1da177e4 LT |
1012 | /* Read and store word 0x0F of the EEPROM. This word contains bits |
1013 | * that determine the hardware's default PAUSE (flow control) mode, | |
1014 | * a bit that determines whether the HW defaults to enabling or | |
1015 | * disabling auto-negotiation, and the direction of the | |
1016 | * SW defined pins. If there is no SW over-ride of the flow | |
1017 | * control setting, then the variable hw->fc will | |
1018 | * be initialized based on a value in the EEPROM. | |
1019 | */ | |
fd803241 JK |
1020 | if (hw->fc == e1000_fc_default) { |
1021 | switch (hw->mac_type) { | |
cd94dd0b | 1022 | case e1000_ich8lan: |
fd803241 | 1023 | case e1000_82573: |
1da177e4 | 1024 | hw->fc = e1000_fc_full; |
fd803241 JK |
1025 | break; |
1026 | default: | |
1027 | ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, | |
1028 | 1, &eeprom_data); | |
1029 | if (ret_val) { | |
1030 | DEBUGOUT("EEPROM Read Error\n"); | |
1031 | return -E1000_ERR_EEPROM; | |
1032 | } | |
1033 | if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == 0) | |
1034 | hw->fc = e1000_fc_none; | |
1035 | else if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == | |
1036 | EEPROM_WORD0F_ASM_DIR) | |
1037 | hw->fc = e1000_fc_tx_pause; | |
1038 | else | |
1039 | hw->fc = e1000_fc_full; | |
1040 | break; | |
1041 | } | |
1da177e4 LT |
1042 | } |
1043 | ||
1044 | /* We want to save off the original Flow Control configuration just | |
1045 | * in case we get disconnected and then reconnected into a different | |
1046 | * hub or switch with different Flow Control capabilities. | |
1047 | */ | |
8fc897b0 | 1048 | if (hw->mac_type == e1000_82542_rev2_0) |
1da177e4 LT |
1049 | hw->fc &= (~e1000_fc_tx_pause); |
1050 | ||
8fc897b0 | 1051 | if ((hw->mac_type < e1000_82543) && (hw->report_tx_early == 1)) |
1da177e4 LT |
1052 | hw->fc &= (~e1000_fc_rx_pause); |
1053 | ||
1054 | hw->original_fc = hw->fc; | |
1055 | ||
1056 | DEBUGOUT1("After fix-ups FlowControl is now = %x\n", hw->fc); | |
1057 | ||
1058 | /* Take the 4 bits from EEPROM word 0x0F that determine the initial | |
1059 | * polarity value for the SW controlled pins, and setup the | |
1060 | * Extended Device Control reg with that info. | |
1061 | * This is needed because one of the SW controlled pins is used for | |
1062 | * signal detection. So this should be done before e1000_setup_pcs_link() | |
1063 | * or e1000_phy_setup() is called. | |
1064 | */ | |
497fce5e | 1065 | if (hw->mac_type == e1000_82543) { |
8fc897b0 AK |
1066 | ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, |
1067 | 1, &eeprom_data); | |
1068 | if (ret_val) { | |
1069 | DEBUGOUT("EEPROM Read Error\n"); | |
1070 | return -E1000_ERR_EEPROM; | |
1071 | } | |
1da177e4 LT |
1072 | ctrl_ext = ((eeprom_data & EEPROM_WORD0F_SWPDIO_EXT) << |
1073 | SWDPIO__EXT_SHIFT); | |
1074 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
1075 | } | |
1076 | ||
1077 | /* Call the necessary subroutine to configure the link. */ | |
1078 | ret_val = (hw->media_type == e1000_media_type_copper) ? | |
1079 | e1000_setup_copper_link(hw) : | |
1080 | e1000_setup_fiber_serdes_link(hw); | |
1081 | ||
1082 | /* Initialize the flow control address, type, and PAUSE timer | |
1083 | * registers to their default values. This is done even if flow | |
1084 | * control is disabled, because it does not hurt anything to | |
1085 | * initialize these registers. | |
1086 | */ | |
1087 | DEBUGOUT("Initializing the Flow Control address, type and timer regs\n"); | |
1088 | ||
cd94dd0b AK |
1089 | /* FCAL/H and FCT are hardcoded to standard values in e1000_ich8lan. */ |
1090 | if (hw->mac_type != e1000_ich8lan) { | |
1091 | E1000_WRITE_REG(hw, FCT, FLOW_CONTROL_TYPE); | |
1092 | E1000_WRITE_REG(hw, FCAH, FLOW_CONTROL_ADDRESS_HIGH); | |
1093 | E1000_WRITE_REG(hw, FCAL, FLOW_CONTROL_ADDRESS_LOW); | |
1094 | } | |
2d7edb92 | 1095 | |
1da177e4 LT |
1096 | E1000_WRITE_REG(hw, FCTTV, hw->fc_pause_time); |
1097 | ||
1098 | /* Set the flow control receive threshold registers. Normally, | |
1099 | * these registers will be set to a default threshold that may be | |
1100 | * adjusted later by the driver's runtime code. However, if the | |
1101 | * ability to transmit pause frames in not enabled, then these | |
1102 | * registers will be set to 0. | |
1103 | */ | |
8fc897b0 | 1104 | if (!(hw->fc & e1000_fc_tx_pause)) { |
1da177e4 LT |
1105 | E1000_WRITE_REG(hw, FCRTL, 0); |
1106 | E1000_WRITE_REG(hw, FCRTH, 0); | |
1107 | } else { | |
1108 | /* We need to set up the Receive Threshold high and low water marks | |
1109 | * as well as (optionally) enabling the transmission of XON frames. | |
1110 | */ | |
8fc897b0 | 1111 | if (hw->fc_send_xon) { |
1da177e4 LT |
1112 | E1000_WRITE_REG(hw, FCRTL, (hw->fc_low_water | E1000_FCRTL_XONE)); |
1113 | E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water); | |
1114 | } else { | |
1115 | E1000_WRITE_REG(hw, FCRTL, hw->fc_low_water); | |
1116 | E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water); | |
1117 | } | |
1118 | } | |
1119 | return ret_val; | |
1120 | } | |
1121 | ||
1122 | /****************************************************************************** | |
1123 | * Sets up link for a fiber based or serdes based adapter | |
1124 | * | |
1125 | * hw - Struct containing variables accessed by shared code | |
1126 | * | |
1127 | * Manipulates Physical Coding Sublayer functions in order to configure | |
1128 | * link. Assumes the hardware has been previously reset and the transmitter | |
1129 | * and receiver are not enabled. | |
1130 | *****************************************************************************/ | |
1131 | static int32_t | |
1132 | e1000_setup_fiber_serdes_link(struct e1000_hw *hw) | |
1133 | { | |
1134 | uint32_t ctrl; | |
1135 | uint32_t status; | |
1136 | uint32_t txcw = 0; | |
1137 | uint32_t i; | |
1138 | uint32_t signal = 0; | |
1139 | int32_t ret_val; | |
1140 | ||
1141 | DEBUGFUNC("e1000_setup_fiber_serdes_link"); | |
1142 | ||
868d5309 MC |
1143 | /* On 82571 and 82572 Fiber connections, SerDes loopback mode persists |
1144 | * until explicitly turned off or a power cycle is performed. A read to | |
1145 | * the register does not indicate its status. Therefore, we ensure | |
1146 | * loopback mode is disabled during initialization. | |
1147 | */ | |
1148 | if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) | |
1149 | E1000_WRITE_REG(hw, SCTL, E1000_DISABLE_SERDES_LOOPBACK); | |
1150 | ||
1da177e4 LT |
1151 | /* On adapters with a MAC newer than 82544, SW Defineable pin 1 will be |
1152 | * set when the optics detect a signal. On older adapters, it will be | |
1153 | * cleared when there is a signal. This applies to fiber media only. | |
1154 | * If we're on serdes media, adjust the output amplitude to value set in | |
1155 | * the EEPROM. | |
1156 | */ | |
1157 | ctrl = E1000_READ_REG(hw, CTRL); | |
8fc897b0 | 1158 | if (hw->media_type == e1000_media_type_fiber) |
1da177e4 LT |
1159 | signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; |
1160 | ||
1161 | ret_val = e1000_adjust_serdes_amplitude(hw); | |
8fc897b0 | 1162 | if (ret_val) |
1da177e4 LT |
1163 | return ret_val; |
1164 | ||
1165 | /* Take the link out of reset */ | |
1166 | ctrl &= ~(E1000_CTRL_LRST); | |
1167 | ||
1168 | /* Adjust VCO speed to improve BER performance */ | |
1169 | ret_val = e1000_set_vco_speed(hw); | |
8fc897b0 | 1170 | if (ret_val) |
1da177e4 LT |
1171 | return ret_val; |
1172 | ||
1173 | e1000_config_collision_dist(hw); | |
1174 | ||
1175 | /* Check for a software override of the flow control settings, and setup | |
1176 | * the device accordingly. If auto-negotiation is enabled, then software | |
1177 | * will have to set the "PAUSE" bits to the correct value in the Tranmsit | |
1178 | * Config Word Register (TXCW) and re-start auto-negotiation. However, if | |
1179 | * auto-negotiation is disabled, then software will have to manually | |
1180 | * configure the two flow control enable bits in the CTRL register. | |
1181 | * | |
1182 | * The possible values of the "fc" parameter are: | |
1183 | * 0: Flow control is completely disabled | |
1184 | * 1: Rx flow control is enabled (we can receive pause frames, but | |
1185 | * not send pause frames). | |
1186 | * 2: Tx flow control is enabled (we can send pause frames but we do | |
1187 | * not support receiving pause frames). | |
1188 | * 3: Both Rx and TX flow control (symmetric) are enabled. | |
1189 | */ | |
1190 | switch (hw->fc) { | |
1191 | case e1000_fc_none: | |
1192 | /* Flow control is completely disabled by a software over-ride. */ | |
1193 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD); | |
1194 | break; | |
1195 | case e1000_fc_rx_pause: | |
1196 | /* RX Flow control is enabled and TX Flow control is disabled by a | |
1197 | * software over-ride. Since there really isn't a way to advertise | |
1198 | * that we are capable of RX Pause ONLY, we will advertise that we | |
1199 | * support both symmetric and asymmetric RX PAUSE. Later, we will | |
1200 | * disable the adapter's ability to send PAUSE frames. | |
1201 | */ | |
1202 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); | |
1203 | break; | |
1204 | case e1000_fc_tx_pause: | |
1205 | /* TX Flow control is enabled, and RX Flow control is disabled, by a | |
1206 | * software over-ride. | |
1207 | */ | |
1208 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR); | |
1209 | break; | |
1210 | case e1000_fc_full: | |
1211 | /* Flow control (both RX and TX) is enabled by a software over-ride. */ | |
1212 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); | |
1213 | break; | |
1214 | default: | |
1215 | DEBUGOUT("Flow control param set incorrectly\n"); | |
1216 | return -E1000_ERR_CONFIG; | |
1217 | break; | |
1218 | } | |
1219 | ||
1220 | /* Since auto-negotiation is enabled, take the link out of reset (the link | |
1221 | * will be in reset, because we previously reset the chip). This will | |
1222 | * restart auto-negotiation. If auto-neogtiation is successful then the | |
1223 | * link-up status bit will be set and the flow control enable bits (RFCE | |
1224 | * and TFCE) will be set according to their negotiated value. | |
1225 | */ | |
1226 | DEBUGOUT("Auto-negotiation enabled\n"); | |
1227 | ||
1228 | E1000_WRITE_REG(hw, TXCW, txcw); | |
1229 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
1230 | E1000_WRITE_FLUSH(hw); | |
1231 | ||
1232 | hw->txcw = txcw; | |
f8ec4733 | 1233 | msleep(1); |
1da177e4 LT |
1234 | |
1235 | /* If we have a signal (the cable is plugged in) then poll for a "Link-Up" | |
1236 | * indication in the Device Status Register. Time-out if a link isn't | |
1237 | * seen in 500 milliseconds seconds (Auto-negotiation should complete in | |
1238 | * less than 500 milliseconds even if the other end is doing it in SW). | |
1239 | * For internal serdes, we just assume a signal is present, then poll. | |
1240 | */ | |
8fc897b0 | 1241 | if (hw->media_type == e1000_media_type_internal_serdes || |
1da177e4 LT |
1242 | (E1000_READ_REG(hw, CTRL) & E1000_CTRL_SWDPIN1) == signal) { |
1243 | DEBUGOUT("Looking for Link\n"); | |
8fc897b0 | 1244 | for (i = 0; i < (LINK_UP_TIMEOUT / 10); i++) { |
f8ec4733 | 1245 | msleep(10); |
1da177e4 | 1246 | status = E1000_READ_REG(hw, STATUS); |
8fc897b0 | 1247 | if (status & E1000_STATUS_LU) break; |
1da177e4 | 1248 | } |
8fc897b0 | 1249 | if (i == (LINK_UP_TIMEOUT / 10)) { |
1da177e4 LT |
1250 | DEBUGOUT("Never got a valid link from auto-neg!!!\n"); |
1251 | hw->autoneg_failed = 1; | |
1252 | /* AutoNeg failed to achieve a link, so we'll call | |
1253 | * e1000_check_for_link. This routine will force the link up if | |
1254 | * we detect a signal. This will allow us to communicate with | |
1255 | * non-autonegotiating link partners. | |
1256 | */ | |
1257 | ret_val = e1000_check_for_link(hw); | |
8fc897b0 | 1258 | if (ret_val) { |
1da177e4 LT |
1259 | DEBUGOUT("Error while checking for link\n"); |
1260 | return ret_val; | |
1261 | } | |
1262 | hw->autoneg_failed = 0; | |
1263 | } else { | |
1264 | hw->autoneg_failed = 0; | |
1265 | DEBUGOUT("Valid Link Found\n"); | |
1266 | } | |
1267 | } else { | |
1268 | DEBUGOUT("No Signal Detected\n"); | |
1269 | } | |
1270 | return E1000_SUCCESS; | |
1271 | } | |
1272 | ||
1273 | /****************************************************************************** | |
2d7edb92 | 1274 | * Make sure we have a valid PHY and change PHY mode before link setup. |
1da177e4 LT |
1275 | * |
1276 | * hw - Struct containing variables accessed by shared code | |
1277 | ******************************************************************************/ | |
1278 | static int32_t | |
2d7edb92 | 1279 | e1000_copper_link_preconfig(struct e1000_hw *hw) |
1da177e4 LT |
1280 | { |
1281 | uint32_t ctrl; | |
1da177e4 | 1282 | int32_t ret_val; |
1da177e4 LT |
1283 | uint16_t phy_data; |
1284 | ||
2d7edb92 | 1285 | DEBUGFUNC("e1000_copper_link_preconfig"); |
1da177e4 LT |
1286 | |
1287 | ctrl = E1000_READ_REG(hw, CTRL); | |
1288 | /* With 82543, we need to force speed and duplex on the MAC equal to what | |
1289 | * the PHY speed and duplex configuration is. In addition, we need to | |
1290 | * perform a hardware reset on the PHY to take it out of reset. | |
1291 | */ | |
8fc897b0 | 1292 | if (hw->mac_type > e1000_82543) { |
1da177e4 LT |
1293 | ctrl |= E1000_CTRL_SLU; |
1294 | ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
1295 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
1296 | } else { | |
1297 | ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU); | |
1298 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2d7edb92 | 1299 | ret_val = e1000_phy_hw_reset(hw); |
8fc897b0 | 1300 | if (ret_val) |
2d7edb92 | 1301 | return ret_val; |
1da177e4 LT |
1302 | } |
1303 | ||
1304 | /* Make sure we have a valid PHY */ | |
1305 | ret_val = e1000_detect_gig_phy(hw); | |
8fc897b0 | 1306 | if (ret_val) { |
1da177e4 LT |
1307 | DEBUGOUT("Error, did not detect valid phy.\n"); |
1308 | return ret_val; | |
1309 | } | |
1310 | DEBUGOUT1("Phy ID = %x \n", hw->phy_id); | |
1311 | ||
1312 | /* Set PHY to class A mode (if necessary) */ | |
1313 | ret_val = e1000_set_phy_mode(hw); | |
8fc897b0 | 1314 | if (ret_val) |
1da177e4 LT |
1315 | return ret_val; |
1316 | ||
8fc897b0 | 1317 | if ((hw->mac_type == e1000_82545_rev_3) || |
1da177e4 LT |
1318 | (hw->mac_type == e1000_82546_rev_3)) { |
1319 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
1320 | phy_data |= 0x00000008; | |
1321 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); | |
1322 | } | |
1323 | ||
8fc897b0 AK |
1324 | if (hw->mac_type <= e1000_82543 || |
1325 | hw->mac_type == e1000_82541 || hw->mac_type == e1000_82547 || | |
1326 | hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) | |
1da177e4 LT |
1327 | hw->phy_reset_disable = FALSE; |
1328 | ||
2d7edb92 MC |
1329 | return E1000_SUCCESS; |
1330 | } | |
1da177e4 | 1331 | |
1da177e4 | 1332 | |
2d7edb92 MC |
1333 | /******************************************************************** |
1334 | * Copper link setup for e1000_phy_igp series. | |
1335 | * | |
1336 | * hw - Struct containing variables accessed by shared code | |
1337 | *********************************************************************/ | |
1338 | static int32_t | |
1339 | e1000_copper_link_igp_setup(struct e1000_hw *hw) | |
1340 | { | |
1341 | uint32_t led_ctrl; | |
1342 | int32_t ret_val; | |
1343 | uint16_t phy_data; | |
1da177e4 | 1344 | |
2d7edb92 | 1345 | DEBUGFUNC("e1000_copper_link_igp_setup"); |
1da177e4 | 1346 | |
2d7edb92 MC |
1347 | if (hw->phy_reset_disable) |
1348 | return E1000_SUCCESS; | |
76c224bc | 1349 | |
2d7edb92 MC |
1350 | ret_val = e1000_phy_reset(hw); |
1351 | if (ret_val) { | |
1352 | DEBUGOUT("Error Resetting the PHY\n"); | |
1353 | return ret_val; | |
1354 | } | |
1da177e4 | 1355 | |
8fc897b0 | 1356 | /* Wait 15ms for MAC to configure PHY from eeprom settings */ |
f8ec4733 | 1357 | msleep(15); |
cd94dd0b | 1358 | if (hw->mac_type != e1000_ich8lan) { |
2d7edb92 MC |
1359 | /* Configure activity LED after PHY reset */ |
1360 | led_ctrl = E1000_READ_REG(hw, LEDCTL); | |
1361 | led_ctrl &= IGP_ACTIVITY_LED_MASK; | |
1362 | led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); | |
1363 | E1000_WRITE_REG(hw, LEDCTL, led_ctrl); | |
cd94dd0b | 1364 | } |
1da177e4 | 1365 | |
c9c1b834 JK |
1366 | /* The NVM settings will configure LPLU in D3 for IGP2 and IGP3 PHYs */ |
1367 | if (hw->phy_type == e1000_phy_igp) { | |
1368 | /* disable lplu d3 during driver init */ | |
1369 | ret_val = e1000_set_d3_lplu_state(hw, FALSE); | |
1370 | if (ret_val) { | |
1371 | DEBUGOUT("Error Disabling LPLU D3\n"); | |
1372 | return ret_val; | |
1373 | } | |
2d7edb92 | 1374 | } |
1da177e4 | 1375 | |
2d7edb92 MC |
1376 | /* disable lplu d0 during driver init */ |
1377 | ret_val = e1000_set_d0_lplu_state(hw, FALSE); | |
1378 | if (ret_val) { | |
1379 | DEBUGOUT("Error Disabling LPLU D0\n"); | |
1380 | return ret_val; | |
1381 | } | |
1382 | /* Configure mdi-mdix settings */ | |
1383 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); | |
1384 | if (ret_val) | |
1385 | return ret_val; | |
1da177e4 | 1386 | |
2d7edb92 MC |
1387 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
1388 | hw->dsp_config_state = e1000_dsp_config_disabled; | |
1389 | /* Force MDI for earlier revs of the IGP PHY */ | |
1390 | phy_data &= ~(IGP01E1000_PSCR_AUTO_MDIX | IGP01E1000_PSCR_FORCE_MDI_MDIX); | |
1391 | hw->mdix = 1; | |
1da177e4 | 1392 | |
2d7edb92 MC |
1393 | } else { |
1394 | hw->dsp_config_state = e1000_dsp_config_enabled; | |
1395 | phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; | |
1da177e4 | 1396 | |
2d7edb92 MC |
1397 | switch (hw->mdix) { |
1398 | case 1: | |
1399 | phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; | |
1400 | break; | |
1401 | case 2: | |
1402 | phy_data |= IGP01E1000_PSCR_FORCE_MDI_MDIX; | |
1403 | break; | |
1404 | case 0: | |
1405 | default: | |
1406 | phy_data |= IGP01E1000_PSCR_AUTO_MDIX; | |
1407 | break; | |
1408 | } | |
1409 | } | |
1410 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); | |
8fc897b0 | 1411 | if (ret_val) |
2d7edb92 | 1412 | return ret_val; |
1da177e4 | 1413 | |
2d7edb92 | 1414 | /* set auto-master slave resolution settings */ |
8fc897b0 | 1415 | if (hw->autoneg) { |
2d7edb92 | 1416 | e1000_ms_type phy_ms_setting = hw->master_slave; |
1da177e4 | 1417 | |
8fc897b0 | 1418 | if (hw->ffe_config_state == e1000_ffe_config_active) |
2d7edb92 | 1419 | hw->ffe_config_state = e1000_ffe_config_enabled; |
1da177e4 | 1420 | |
8fc897b0 | 1421 | if (hw->dsp_config_state == e1000_dsp_config_activated) |
2d7edb92 | 1422 | hw->dsp_config_state = e1000_dsp_config_enabled; |
1da177e4 | 1423 | |
2d7edb92 MC |
1424 | /* when autonegotiation advertisment is only 1000Mbps then we |
1425 | * should disable SmartSpeed and enable Auto MasterSlave | |
1426 | * resolution as hardware default. */ | |
8fc897b0 | 1427 | if (hw->autoneg_advertised == ADVERTISE_1000_FULL) { |
2d7edb92 | 1428 | /* Disable SmartSpeed */ |
8fc897b0 AK |
1429 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
1430 | &phy_data); | |
1431 | if (ret_val) | |
1da177e4 | 1432 | return ret_val; |
2d7edb92 | 1433 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; |
8fc897b0 AK |
1434 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
1435 | phy_data); | |
1436 | if (ret_val) | |
1da177e4 | 1437 | return ret_val; |
2d7edb92 MC |
1438 | /* Set auto Master/Slave resolution process */ |
1439 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); | |
8fc897b0 | 1440 | if (ret_val) |
2d7edb92 MC |
1441 | return ret_val; |
1442 | phy_data &= ~CR_1000T_MS_ENABLE; | |
1443 | ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); | |
8fc897b0 | 1444 | if (ret_val) |
2d7edb92 MC |
1445 | return ret_val; |
1446 | } | |
1da177e4 | 1447 | |
2d7edb92 | 1448 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); |
8fc897b0 | 1449 | if (ret_val) |
2d7edb92 | 1450 | return ret_val; |
1da177e4 | 1451 | |
2d7edb92 MC |
1452 | /* load defaults for future use */ |
1453 | hw->original_master_slave = (phy_data & CR_1000T_MS_ENABLE) ? | |
1454 | ((phy_data & CR_1000T_MS_VALUE) ? | |
1455 | e1000_ms_force_master : | |
1456 | e1000_ms_force_slave) : | |
1457 | e1000_ms_auto; | |
1da177e4 | 1458 | |
2d7edb92 MC |
1459 | switch (phy_ms_setting) { |
1460 | case e1000_ms_force_master: | |
1461 | phy_data |= (CR_1000T_MS_ENABLE | CR_1000T_MS_VALUE); | |
1462 | break; | |
1463 | case e1000_ms_force_slave: | |
1464 | phy_data |= CR_1000T_MS_ENABLE; | |
1465 | phy_data &= ~(CR_1000T_MS_VALUE); | |
1466 | break; | |
1467 | case e1000_ms_auto: | |
1468 | phy_data &= ~CR_1000T_MS_ENABLE; | |
1469 | default: | |
1470 | break; | |
1471 | } | |
1472 | ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); | |
8fc897b0 | 1473 | if (ret_val) |
2d7edb92 | 1474 | return ret_val; |
2b02893e | 1475 | } |
1da177e4 | 1476 | |
2b02893e | 1477 | return E1000_SUCCESS; |
2d7edb92 | 1478 | } |
1da177e4 | 1479 | |
6418ecc6 JK |
1480 | /******************************************************************** |
1481 | * Copper link setup for e1000_phy_gg82563 series. | |
1482 | * | |
1483 | * hw - Struct containing variables accessed by shared code | |
1484 | *********************************************************************/ | |
1485 | static int32_t | |
1486 | e1000_copper_link_ggp_setup(struct e1000_hw *hw) | |
1487 | { | |
1488 | int32_t ret_val; | |
1489 | uint16_t phy_data; | |
1490 | uint32_t reg_data; | |
1491 | ||
1492 | DEBUGFUNC("e1000_copper_link_ggp_setup"); | |
1493 | ||
8fc897b0 | 1494 | if (!hw->phy_reset_disable) { |
76c224bc | 1495 | |
6418ecc6 JK |
1496 | /* Enable CRS on TX for half-duplex operation. */ |
1497 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, | |
1498 | &phy_data); | |
8fc897b0 | 1499 | if (ret_val) |
6418ecc6 JK |
1500 | return ret_val; |
1501 | ||
1502 | phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; | |
1503 | /* Use 25MHz for both link down and 1000BASE-T for Tx clock */ | |
1504 | phy_data |= GG82563_MSCR_TX_CLK_1000MBPS_25MHZ; | |
1505 | ||
1506 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, | |
1507 | phy_data); | |
8fc897b0 | 1508 | if (ret_val) |
6418ecc6 JK |
1509 | return ret_val; |
1510 | ||
1511 | /* Options: | |
1512 | * MDI/MDI-X = 0 (default) | |
1513 | * 0 - Auto for all speeds | |
1514 | * 1 - MDI mode | |
1515 | * 2 - MDI-X mode | |
1516 | * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) | |
1517 | */ | |
1518 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 1519 | if (ret_val) |
6418ecc6 JK |
1520 | return ret_val; |
1521 | ||
1522 | phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK; | |
1523 | ||
1524 | switch (hw->mdix) { | |
1525 | case 1: | |
1526 | phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDI; | |
1527 | break; | |
1528 | case 2: | |
1529 | phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDIX; | |
1530 | break; | |
1531 | case 0: | |
1532 | default: | |
1533 | phy_data |= GG82563_PSCR_CROSSOVER_MODE_AUTO; | |
1534 | break; | |
1535 | } | |
1536 | ||
1537 | /* Options: | |
1538 | * disable_polarity_correction = 0 (default) | |
1539 | * Automatic Correction for Reversed Cable Polarity | |
1540 | * 0 - Disabled | |
1541 | * 1 - Enabled | |
1542 | */ | |
1543 | phy_data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE; | |
8fc897b0 | 1544 | if (hw->disable_polarity_correction == 1) |
6418ecc6 JK |
1545 | phy_data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE; |
1546 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL, phy_data); | |
1547 | ||
8fc897b0 | 1548 | if (ret_val) |
6418ecc6 JK |
1549 | return ret_val; |
1550 | ||
1551 | /* SW Reset the PHY so all changes take effect */ | |
1552 | ret_val = e1000_phy_reset(hw); | |
1553 | if (ret_val) { | |
1554 | DEBUGOUT("Error Resetting the PHY\n"); | |
1555 | return ret_val; | |
1556 | } | |
1557 | } /* phy_reset_disable */ | |
1558 | ||
1559 | if (hw->mac_type == e1000_80003es2lan) { | |
1560 | /* Bypass RX and TX FIFO's */ | |
1561 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL, | |
1562 | E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS | | |
1563 | E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS); | |
1564 | if (ret_val) | |
1565 | return ret_val; | |
1566 | ||
1567 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, &phy_data); | |
1568 | if (ret_val) | |
1569 | return ret_val; | |
1570 | ||
1571 | phy_data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG; | |
1572 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, phy_data); | |
1573 | ||
1574 | if (ret_val) | |
1575 | return ret_val; | |
1576 | ||
1577 | reg_data = E1000_READ_REG(hw, CTRL_EXT); | |
1578 | reg_data &= ~(E1000_CTRL_EXT_LINK_MODE_MASK); | |
1579 | E1000_WRITE_REG(hw, CTRL_EXT, reg_data); | |
1580 | ||
1581 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, | |
1582 | &phy_data); | |
1583 | if (ret_val) | |
1584 | return ret_val; | |
1585 | ||
1586 | /* Do not init these registers when the HW is in IAMT mode, since the | |
1587 | * firmware will have already initialized them. We only initialize | |
1588 | * them if the HW is not in IAMT mode. | |
1589 | */ | |
1590 | if (e1000_check_mng_mode(hw) == FALSE) { | |
1591 | /* Enable Electrical Idle on the PHY */ | |
1592 | phy_data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE; | |
1593 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, | |
1594 | phy_data); | |
1595 | if (ret_val) | |
1596 | return ret_val; | |
1597 | ||
1598 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, | |
1599 | &phy_data); | |
1600 | if (ret_val) | |
1601 | return ret_val; | |
1602 | ||
cd94dd0b | 1603 | phy_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; |
6418ecc6 JK |
1604 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, |
1605 | phy_data); | |
8fc897b0 | 1606 | |
6418ecc6 JK |
1607 | if (ret_val) |
1608 | return ret_val; | |
1609 | } | |
1610 | ||
1611 | /* Workaround: Disable padding in Kumeran interface in the MAC | |
1612 | * and in the PHY to avoid CRC errors. | |
1613 | */ | |
1614 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_INBAND_CTRL, | |
1615 | &phy_data); | |
1616 | if (ret_val) | |
1617 | return ret_val; | |
1618 | phy_data |= GG82563_ICR_DIS_PADDING; | |
1619 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_INBAND_CTRL, | |
1620 | phy_data); | |
1621 | if (ret_val) | |
1622 | return ret_val; | |
1623 | } | |
1624 | ||
1625 | return E1000_SUCCESS; | |
1626 | } | |
1da177e4 | 1627 | |
2d7edb92 MC |
1628 | /******************************************************************** |
1629 | * Copper link setup for e1000_phy_m88 series. | |
1630 | * | |
1631 | * hw - Struct containing variables accessed by shared code | |
1632 | *********************************************************************/ | |
1633 | static int32_t | |
1634 | e1000_copper_link_mgp_setup(struct e1000_hw *hw) | |
1635 | { | |
1636 | int32_t ret_val; | |
1637 | uint16_t phy_data; | |
1da177e4 | 1638 | |
2d7edb92 | 1639 | DEBUGFUNC("e1000_copper_link_mgp_setup"); |
1da177e4 | 1640 | |
8fc897b0 | 1641 | if (hw->phy_reset_disable) |
2d7edb92 | 1642 | return E1000_SUCCESS; |
76c224bc | 1643 | |
2d7edb92 MC |
1644 | /* Enable CRS on TX. This must be set for half-duplex operation. */ |
1645 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 1646 | if (ret_val) |
2d7edb92 | 1647 | return ret_val; |
1da177e4 | 1648 | |
2d7edb92 | 1649 | phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; |
1da177e4 | 1650 | |
2d7edb92 MC |
1651 | /* Options: |
1652 | * MDI/MDI-X = 0 (default) | |
1653 | * 0 - Auto for all speeds | |
1654 | * 1 - MDI mode | |
1655 | * 2 - MDI-X mode | |
1656 | * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) | |
1657 | */ | |
1658 | phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; | |
1da177e4 | 1659 | |
2d7edb92 MC |
1660 | switch (hw->mdix) { |
1661 | case 1: | |
1662 | phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE; | |
1663 | break; | |
1664 | case 2: | |
1665 | phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE; | |
1666 | break; | |
1667 | case 3: | |
1668 | phy_data |= M88E1000_PSCR_AUTO_X_1000T; | |
1669 | break; | |
1670 | case 0: | |
1671 | default: | |
1672 | phy_data |= M88E1000_PSCR_AUTO_X_MODE; | |
1673 | break; | |
1674 | } | |
1675 | ||
1676 | /* Options: | |
1677 | * disable_polarity_correction = 0 (default) | |
1678 | * Automatic Correction for Reversed Cable Polarity | |
1679 | * 0 - Disabled | |
1680 | * 1 - Enabled | |
1da177e4 | 1681 | */ |
2d7edb92 | 1682 | phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL; |
8fc897b0 | 1683 | if (hw->disable_polarity_correction == 1) |
2d7edb92 | 1684 | phy_data |= M88E1000_PSCR_POLARITY_REVERSAL; |
ee04022a AK |
1685 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); |
1686 | if (ret_val) | |
2d7edb92 MC |
1687 | return ret_val; |
1688 | ||
2d7edb92 | 1689 | if (hw->phy_revision < M88E1011_I_REV_4) { |
ee04022a AK |
1690 | /* Force TX_CLK in the Extended PHY Specific Control Register |
1691 | * to 25MHz clock. | |
1692 | */ | |
1693 | ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); | |
1694 | if (ret_val) | |
1695 | return ret_val; | |
1696 | ||
1697 | phy_data |= M88E1000_EPSCR_TX_CLK_25; | |
1698 | ||
1699 | if ((hw->phy_revision == E1000_REVISION_2) && | |
1700 | (hw->phy_id == M88E1111_I_PHY_ID)) { | |
1701 | /* Vidalia Phy, set the downshift counter to 5x */ | |
1702 | phy_data &= ~(M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK); | |
1703 | phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X; | |
1704 | ret_val = e1000_write_phy_reg(hw, | |
1705 | M88E1000_EXT_PHY_SPEC_CTRL, phy_data); | |
1706 | if (ret_val) | |
1707 | return ret_val; | |
1708 | } else { | |
1709 | /* Configure Master and Slave downshift values */ | |
1710 | phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK | | |
2d7edb92 | 1711 | M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK); |
ee04022a | 1712 | phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X | |
2d7edb92 | 1713 | M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X); |
ee04022a AK |
1714 | ret_val = e1000_write_phy_reg(hw, |
1715 | M88E1000_EXT_PHY_SPEC_CTRL, phy_data); | |
1716 | if (ret_val) | |
1717 | return ret_val; | |
1718 | } | |
2d7edb92 | 1719 | } |
1da177e4 | 1720 | |
2d7edb92 MC |
1721 | /* SW Reset the PHY so all changes take effect */ |
1722 | ret_val = e1000_phy_reset(hw); | |
8fc897b0 | 1723 | if (ret_val) { |
2d7edb92 MC |
1724 | DEBUGOUT("Error Resetting the PHY\n"); |
1725 | return ret_val; | |
1da177e4 LT |
1726 | } |
1727 | ||
2d7edb92 | 1728 | return E1000_SUCCESS; |
1da177e4 LT |
1729 | } |
1730 | ||
2d7edb92 MC |
1731 | /******************************************************************** |
1732 | * Setup auto-negotiation and flow control advertisements, | |
1733 | * and then perform auto-negotiation. | |
1da177e4 LT |
1734 | * |
1735 | * hw - Struct containing variables accessed by shared code | |
2d7edb92 MC |
1736 | *********************************************************************/ |
1737 | static int32_t | |
1738 | e1000_copper_link_autoneg(struct e1000_hw *hw) | |
1da177e4 LT |
1739 | { |
1740 | int32_t ret_val; | |
2d7edb92 | 1741 | uint16_t phy_data; |
1da177e4 | 1742 | |
2d7edb92 | 1743 | DEBUGFUNC("e1000_copper_link_autoneg"); |
1da177e4 | 1744 | |
2d7edb92 MC |
1745 | /* Perform some bounds checking on the hw->autoneg_advertised |
1746 | * parameter. If this variable is zero, then set it to the default. | |
1747 | */ | |
1748 | hw->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT; | |
1749 | ||
1750 | /* If autoneg_advertised is zero, we assume it was not defaulted | |
1751 | * by the calling code so we set to advertise full capability. | |
1752 | */ | |
8fc897b0 | 1753 | if (hw->autoneg_advertised == 0) |
2d7edb92 MC |
1754 | hw->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT; |
1755 | ||
cd94dd0b AK |
1756 | /* IFE phy only supports 10/100 */ |
1757 | if (hw->phy_type == e1000_phy_ife) | |
1758 | hw->autoneg_advertised &= AUTONEG_ADVERTISE_10_100_ALL; | |
1759 | ||
2d7edb92 MC |
1760 | DEBUGOUT("Reconfiguring auto-neg advertisement params\n"); |
1761 | ret_val = e1000_phy_setup_autoneg(hw); | |
8fc897b0 | 1762 | if (ret_val) { |
2d7edb92 MC |
1763 | DEBUGOUT("Error Setting up Auto-Negotiation\n"); |
1764 | return ret_val; | |
1765 | } | |
1766 | DEBUGOUT("Restarting Auto-Neg\n"); | |
1767 | ||
1768 | /* Restart auto-negotiation by setting the Auto Neg Enable bit and | |
1769 | * the Auto Neg Restart bit in the PHY control register. | |
1770 | */ | |
1771 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); | |
8fc897b0 | 1772 | if (ret_val) |
1da177e4 LT |
1773 | return ret_val; |
1774 | ||
2d7edb92 MC |
1775 | phy_data |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG); |
1776 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); | |
8fc897b0 | 1777 | if (ret_val) |
1da177e4 LT |
1778 | return ret_val; |
1779 | ||
2d7edb92 MC |
1780 | /* Does the user want to wait for Auto-Neg to complete here, or |
1781 | * check at a later time (for example, callback routine). | |
1782 | */ | |
8fc897b0 | 1783 | if (hw->wait_autoneg_complete) { |
2d7edb92 | 1784 | ret_val = e1000_wait_autoneg(hw); |
8fc897b0 | 1785 | if (ret_val) { |
2d7edb92 MC |
1786 | DEBUGOUT("Error while waiting for autoneg to complete\n"); |
1787 | return ret_val; | |
1788 | } | |
1789 | } | |
1790 | ||
1791 | hw->get_link_status = TRUE; | |
1792 | ||
1793 | return E1000_SUCCESS; | |
1794 | } | |
1795 | ||
2d7edb92 MC |
1796 | /****************************************************************************** |
1797 | * Config the MAC and the PHY after link is up. | |
1798 | * 1) Set up the MAC to the current PHY speed/duplex | |
1799 | * if we are on 82543. If we | |
1800 | * are on newer silicon, we only need to configure | |
1801 | * collision distance in the Transmit Control Register. | |
1802 | * 2) Set up flow control on the MAC to that established with | |
1803 | * the link partner. | |
76c224bc | 1804 | * 3) Config DSP to improve Gigabit link quality for some PHY revisions. |
2d7edb92 MC |
1805 | * |
1806 | * hw - Struct containing variables accessed by shared code | |
1807 | ******************************************************************************/ | |
1808 | static int32_t | |
1809 | e1000_copper_link_postconfig(struct e1000_hw *hw) | |
1810 | { | |
1811 | int32_t ret_val; | |
1812 | DEBUGFUNC("e1000_copper_link_postconfig"); | |
76c224bc | 1813 | |
8fc897b0 | 1814 | if (hw->mac_type >= e1000_82544) { |
2d7edb92 MC |
1815 | e1000_config_collision_dist(hw); |
1816 | } else { | |
1817 | ret_val = e1000_config_mac_to_phy(hw); | |
8fc897b0 | 1818 | if (ret_val) { |
2d7edb92 MC |
1819 | DEBUGOUT("Error configuring MAC to PHY settings\n"); |
1820 | return ret_val; | |
1821 | } | |
1822 | } | |
1823 | ret_val = e1000_config_fc_after_link_up(hw); | |
8fc897b0 | 1824 | if (ret_val) { |
2d7edb92 MC |
1825 | DEBUGOUT("Error Configuring Flow Control\n"); |
1826 | return ret_val; | |
1827 | } | |
1828 | ||
1829 | /* Config DSP to improve Giga link quality */ | |
8fc897b0 | 1830 | if (hw->phy_type == e1000_phy_igp) { |
2d7edb92 | 1831 | ret_val = e1000_config_dsp_after_link_change(hw, TRUE); |
8fc897b0 | 1832 | if (ret_val) { |
2d7edb92 MC |
1833 | DEBUGOUT("Error Configuring DSP after link up\n"); |
1834 | return ret_val; | |
1835 | } | |
1836 | } | |
76c224bc | 1837 | |
2d7edb92 MC |
1838 | return E1000_SUCCESS; |
1839 | } | |
1840 | ||
1841 | /****************************************************************************** | |
1842 | * Detects which PHY is present and setup the speed and duplex | |
1843 | * | |
1844 | * hw - Struct containing variables accessed by shared code | |
1845 | ******************************************************************************/ | |
1846 | static int32_t | |
1847 | e1000_setup_copper_link(struct e1000_hw *hw) | |
1848 | { | |
1849 | int32_t ret_val; | |
1850 | uint16_t i; | |
1851 | uint16_t phy_data; | |
6418ecc6 | 1852 | uint16_t reg_data; |
2d7edb92 MC |
1853 | |
1854 | DEBUGFUNC("e1000_setup_copper_link"); | |
1855 | ||
cd94dd0b AK |
1856 | switch (hw->mac_type) { |
1857 | case e1000_80003es2lan: | |
1858 | case e1000_ich8lan: | |
1859 | /* Set the mac to wait the maximum time between each | |
1860 | * iteration and increase the max iterations when | |
1861 | * polling the phy; this fixes erroneous timeouts at 10Mbps. */ | |
1862 | ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF); | |
1863 | if (ret_val) | |
1864 | return ret_val; | |
1865 | ret_val = e1000_read_kmrn_reg(hw, GG82563_REG(0x34, 9), ®_data); | |
1866 | if (ret_val) | |
1867 | return ret_val; | |
1868 | reg_data |= 0x3F; | |
1869 | ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 9), reg_data); | |
1870 | if (ret_val) | |
1871 | return ret_val; | |
1872 | default: | |
1873 | break; | |
1874 | } | |
1875 | ||
2d7edb92 MC |
1876 | /* Check if it is a valid PHY and set PHY mode if necessary. */ |
1877 | ret_val = e1000_copper_link_preconfig(hw); | |
8fc897b0 | 1878 | if (ret_val) |
2d7edb92 MC |
1879 | return ret_val; |
1880 | ||
6418ecc6 JK |
1881 | switch (hw->mac_type) { |
1882 | case e1000_80003es2lan: | |
cd94dd0b AK |
1883 | /* Kumeran registers are written-only */ |
1884 | reg_data = E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT; | |
6418ecc6 JK |
1885 | reg_data |= E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING; |
1886 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_INB_CTRL, | |
1887 | reg_data); | |
1888 | if (ret_val) | |
1889 | return ret_val; | |
1890 | break; | |
1891 | default: | |
1892 | break; | |
1893 | } | |
1894 | ||
2d7edb92 | 1895 | if (hw->phy_type == e1000_phy_igp || |
cd94dd0b | 1896 | hw->phy_type == e1000_phy_igp_3 || |
2d7edb92 MC |
1897 | hw->phy_type == e1000_phy_igp_2) { |
1898 | ret_val = e1000_copper_link_igp_setup(hw); | |
8fc897b0 | 1899 | if (ret_val) |
2d7edb92 MC |
1900 | return ret_val; |
1901 | } else if (hw->phy_type == e1000_phy_m88) { | |
1902 | ret_val = e1000_copper_link_mgp_setup(hw); | |
8fc897b0 | 1903 | if (ret_val) |
2d7edb92 | 1904 | return ret_val; |
6418ecc6 JK |
1905 | } else if (hw->phy_type == e1000_phy_gg82563) { |
1906 | ret_val = e1000_copper_link_ggp_setup(hw); | |
8fc897b0 | 1907 | if (ret_val) |
6418ecc6 | 1908 | return ret_val; |
2d7edb92 MC |
1909 | } |
1910 | ||
8fc897b0 | 1911 | if (hw->autoneg) { |
76c224bc AK |
1912 | /* Setup autoneg and flow control advertisement |
1913 | * and perform autonegotiation */ | |
2d7edb92 | 1914 | ret_val = e1000_copper_link_autoneg(hw); |
8fc897b0 | 1915 | if (ret_val) |
76c224bc | 1916 | return ret_val; |
2d7edb92 MC |
1917 | } else { |
1918 | /* PHY will be set to 10H, 10F, 100H,or 100F | |
1919 | * depending on value from forced_speed_duplex. */ | |
1920 | DEBUGOUT("Forcing speed and duplex\n"); | |
1921 | ret_val = e1000_phy_force_speed_duplex(hw); | |
8fc897b0 | 1922 | if (ret_val) { |
2d7edb92 MC |
1923 | DEBUGOUT("Error Forcing Speed and Duplex\n"); |
1924 | return ret_val; | |
1925 | } | |
1926 | } | |
1927 | ||
1928 | /* Check link status. Wait up to 100 microseconds for link to become | |
1929 | * valid. | |
1930 | */ | |
8fc897b0 | 1931 | for (i = 0; i < 10; i++) { |
2d7edb92 | 1932 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); |
8fc897b0 | 1933 | if (ret_val) |
2d7edb92 MC |
1934 | return ret_val; |
1935 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 1936 | if (ret_val) |
2d7edb92 MC |
1937 | return ret_val; |
1938 | ||
8fc897b0 | 1939 | if (phy_data & MII_SR_LINK_STATUS) { |
2d7edb92 MC |
1940 | /* Config the MAC and PHY after link is up */ |
1941 | ret_val = e1000_copper_link_postconfig(hw); | |
8fc897b0 | 1942 | if (ret_val) |
2d7edb92 | 1943 | return ret_val; |
76c224bc | 1944 | |
2d7edb92 MC |
1945 | DEBUGOUT("Valid link established!!!\n"); |
1946 | return E1000_SUCCESS; | |
1947 | } | |
1948 | udelay(10); | |
1949 | } | |
1950 | ||
1951 | DEBUGOUT("Unable to establish link!!!\n"); | |
1952 | return E1000_SUCCESS; | |
1953 | } | |
1954 | ||
6418ecc6 JK |
1955 | /****************************************************************************** |
1956 | * Configure the MAC-to-PHY interface for 10/100Mbps | |
1957 | * | |
1958 | * hw - Struct containing variables accessed by shared code | |
1959 | ******************************************************************************/ | |
1960 | static int32_t | |
cd94dd0b | 1961 | e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, uint16_t duplex) |
6418ecc6 JK |
1962 | { |
1963 | int32_t ret_val = E1000_SUCCESS; | |
1964 | uint32_t tipg; | |
1965 | uint16_t reg_data; | |
1966 | ||
1967 | DEBUGFUNC("e1000_configure_kmrn_for_10_100"); | |
1968 | ||
1969 | reg_data = E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT; | |
1970 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, | |
1971 | reg_data); | |
1972 | if (ret_val) | |
1973 | return ret_val; | |
1974 | ||
1975 | /* Configure Transmit Inter-Packet Gap */ | |
1976 | tipg = E1000_READ_REG(hw, TIPG); | |
1977 | tipg &= ~E1000_TIPG_IPGT_MASK; | |
1978 | tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_10_100; | |
1979 | E1000_WRITE_REG(hw, TIPG, tipg); | |
1980 | ||
cd94dd0b AK |
1981 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); |
1982 | ||
1983 | if (ret_val) | |
1984 | return ret_val; | |
1985 | ||
1986 | if (duplex == HALF_DUPLEX) | |
1987 | reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER; | |
1988 | else | |
1989 | reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; | |
1990 | ||
1991 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); | |
1992 | ||
6418ecc6 JK |
1993 | return ret_val; |
1994 | } | |
1995 | ||
1996 | static int32_t | |
1997 | e1000_configure_kmrn_for_1000(struct e1000_hw *hw) | |
1998 | { | |
1999 | int32_t ret_val = E1000_SUCCESS; | |
2000 | uint16_t reg_data; | |
2001 | uint32_t tipg; | |
2002 | ||
2003 | DEBUGFUNC("e1000_configure_kmrn_for_1000"); | |
2004 | ||
2005 | reg_data = E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT; | |
2006 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, | |
2007 | reg_data); | |
2008 | if (ret_val) | |
2009 | return ret_val; | |
2010 | ||
2011 | /* Configure Transmit Inter-Packet Gap */ | |
2012 | tipg = E1000_READ_REG(hw, TIPG); | |
2013 | tipg &= ~E1000_TIPG_IPGT_MASK; | |
2014 | tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; | |
2015 | E1000_WRITE_REG(hw, TIPG, tipg); | |
2016 | ||
cd94dd0b AK |
2017 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); |
2018 | ||
2019 | if (ret_val) | |
2020 | return ret_val; | |
2021 | ||
2022 | reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; | |
2023 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); | |
2024 | ||
6418ecc6 JK |
2025 | return ret_val; |
2026 | } | |
2027 | ||
2d7edb92 MC |
2028 | /****************************************************************************** |
2029 | * Configures PHY autoneg and flow control advertisement settings | |
2030 | * | |
2031 | * hw - Struct containing variables accessed by shared code | |
2032 | ******************************************************************************/ | |
2033 | int32_t | |
2034 | e1000_phy_setup_autoneg(struct e1000_hw *hw) | |
2035 | { | |
2036 | int32_t ret_val; | |
2037 | uint16_t mii_autoneg_adv_reg; | |
2038 | uint16_t mii_1000t_ctrl_reg; | |
2039 | ||
2040 | DEBUGFUNC("e1000_phy_setup_autoneg"); | |
2041 | ||
2042 | /* Read the MII Auto-Neg Advertisement Register (Address 4). */ | |
2043 | ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg); | |
8fc897b0 | 2044 | if (ret_val) |
2d7edb92 MC |
2045 | return ret_val; |
2046 | ||
cd94dd0b AK |
2047 | if (hw->phy_type != e1000_phy_ife) { |
2048 | /* Read the MII 1000Base-T Control Register (Address 9). */ | |
2049 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &mii_1000t_ctrl_reg); | |
2050 | if (ret_val) | |
2051 | return ret_val; | |
2052 | } else | |
2053 | mii_1000t_ctrl_reg=0; | |
2d7edb92 MC |
2054 | |
2055 | /* Need to parse both autoneg_advertised and fc and set up | |
2056 | * the appropriate PHY registers. First we will parse for | |
1da177e4 LT |
2057 | * autoneg_advertised software override. Since we can advertise |
2058 | * a plethora of combinations, we need to check each bit | |
2059 | * individually. | |
2060 | */ | |
2061 | ||
2062 | /* First we clear all the 10/100 mb speed bits in the Auto-Neg | |
2063 | * Advertisement Register (Address 4) and the 1000 mb speed bits in | |
2064 | * the 1000Base-T Control Register (Address 9). | |
2065 | */ | |
2066 | mii_autoneg_adv_reg &= ~REG4_SPEED_MASK; | |
2067 | mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK; | |
2068 | ||
2069 | DEBUGOUT1("autoneg_advertised %x\n", hw->autoneg_advertised); | |
2070 | ||
2071 | /* Do we want to advertise 10 Mb Half Duplex? */ | |
8fc897b0 | 2072 | if (hw->autoneg_advertised & ADVERTISE_10_HALF) { |
1da177e4 LT |
2073 | DEBUGOUT("Advertise 10mb Half duplex\n"); |
2074 | mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS; | |
2075 | } | |
2076 | ||
2077 | /* Do we want to advertise 10 Mb Full Duplex? */ | |
8fc897b0 | 2078 | if (hw->autoneg_advertised & ADVERTISE_10_FULL) { |
1da177e4 LT |
2079 | DEBUGOUT("Advertise 10mb Full duplex\n"); |
2080 | mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS; | |
2081 | } | |
2082 | ||
2083 | /* Do we want to advertise 100 Mb Half Duplex? */ | |
8fc897b0 | 2084 | if (hw->autoneg_advertised & ADVERTISE_100_HALF) { |
1da177e4 LT |
2085 | DEBUGOUT("Advertise 100mb Half duplex\n"); |
2086 | mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS; | |
2087 | } | |
2088 | ||
2089 | /* Do we want to advertise 100 Mb Full Duplex? */ | |
8fc897b0 | 2090 | if (hw->autoneg_advertised & ADVERTISE_100_FULL) { |
1da177e4 LT |
2091 | DEBUGOUT("Advertise 100mb Full duplex\n"); |
2092 | mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS; | |
2093 | } | |
2094 | ||
2095 | /* We do not allow the Phy to advertise 1000 Mb Half Duplex */ | |
8fc897b0 | 2096 | if (hw->autoneg_advertised & ADVERTISE_1000_HALF) { |
1da177e4 LT |
2097 | DEBUGOUT("Advertise 1000mb Half duplex requested, request denied!\n"); |
2098 | } | |
2099 | ||
2100 | /* Do we want to advertise 1000 Mb Full Duplex? */ | |
8fc897b0 | 2101 | if (hw->autoneg_advertised & ADVERTISE_1000_FULL) { |
1da177e4 LT |
2102 | DEBUGOUT("Advertise 1000mb Full duplex\n"); |
2103 | mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS; | |
cd94dd0b AK |
2104 | if (hw->phy_type == e1000_phy_ife) { |
2105 | DEBUGOUT("e1000_phy_ife is a 10/100 PHY. Gigabit speed is not supported.\n"); | |
2106 | } | |
1da177e4 LT |
2107 | } |
2108 | ||
2109 | /* Check for a software override of the flow control settings, and | |
2110 | * setup the PHY advertisement registers accordingly. If | |
2111 | * auto-negotiation is enabled, then software will have to set the | |
2112 | * "PAUSE" bits to the correct value in the Auto-Negotiation | |
2113 | * Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation. | |
2114 | * | |
2115 | * The possible values of the "fc" parameter are: | |
2116 | * 0: Flow control is completely disabled | |
2117 | * 1: Rx flow control is enabled (we can receive pause frames | |
2118 | * but not send pause frames). | |
2119 | * 2: Tx flow control is enabled (we can send pause frames | |
2120 | * but we do not support receiving pause frames). | |
2121 | * 3: Both Rx and TX flow control (symmetric) are enabled. | |
2122 | * other: No software override. The flow control configuration | |
2123 | * in the EEPROM is used. | |
2124 | */ | |
2125 | switch (hw->fc) { | |
2126 | case e1000_fc_none: /* 0 */ | |
2127 | /* Flow control (RX & TX) is completely disabled by a | |
2128 | * software over-ride. | |
2129 | */ | |
2130 | mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); | |
2131 | break; | |
2132 | case e1000_fc_rx_pause: /* 1 */ | |
2133 | /* RX Flow control is enabled, and TX Flow control is | |
2134 | * disabled, by a software over-ride. | |
2135 | */ | |
2136 | /* Since there really isn't a way to advertise that we are | |
2137 | * capable of RX Pause ONLY, we will advertise that we | |
2138 | * support both symmetric and asymmetric RX PAUSE. Later | |
2139 | * (in e1000_config_fc_after_link_up) we will disable the | |
2140 | *hw's ability to send PAUSE frames. | |
2141 | */ | |
2142 | mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); | |
2143 | break; | |
2144 | case e1000_fc_tx_pause: /* 2 */ | |
2145 | /* TX Flow control is enabled, and RX Flow control is | |
2146 | * disabled, by a software over-ride. | |
2147 | */ | |
2148 | mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR; | |
2149 | mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE; | |
2150 | break; | |
2151 | case e1000_fc_full: /* 3 */ | |
2152 | /* Flow control (both RX and TX) is enabled by a software | |
2153 | * over-ride. | |
2154 | */ | |
2155 | mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); | |
2156 | break; | |
2157 | default: | |
2158 | DEBUGOUT("Flow control param set incorrectly\n"); | |
2159 | return -E1000_ERR_CONFIG; | |
2160 | } | |
2161 | ||
2162 | ret_val = e1000_write_phy_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg); | |
8fc897b0 | 2163 | if (ret_val) |
1da177e4 LT |
2164 | return ret_val; |
2165 | ||
2166 | DEBUGOUT1("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg); | |
2167 | ||
cd94dd0b AK |
2168 | if (hw->phy_type != e1000_phy_ife) { |
2169 | ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, mii_1000t_ctrl_reg); | |
2170 | if (ret_val) | |
2171 | return ret_val; | |
2172 | } | |
1da177e4 LT |
2173 | |
2174 | return E1000_SUCCESS; | |
2175 | } | |
2176 | ||
2177 | /****************************************************************************** | |
2178 | * Force PHY speed and duplex settings to hw->forced_speed_duplex | |
2179 | * | |
2180 | * hw - Struct containing variables accessed by shared code | |
2181 | ******************************************************************************/ | |
2182 | static int32_t | |
2183 | e1000_phy_force_speed_duplex(struct e1000_hw *hw) | |
2184 | { | |
2185 | uint32_t ctrl; | |
2186 | int32_t ret_val; | |
2187 | uint16_t mii_ctrl_reg; | |
2188 | uint16_t mii_status_reg; | |
2189 | uint16_t phy_data; | |
2190 | uint16_t i; | |
2191 | ||
2192 | DEBUGFUNC("e1000_phy_force_speed_duplex"); | |
2193 | ||
2194 | /* Turn off Flow control if we are forcing speed and duplex. */ | |
2195 | hw->fc = e1000_fc_none; | |
2196 | ||
2197 | DEBUGOUT1("hw->fc = %d\n", hw->fc); | |
2198 | ||
2199 | /* Read the Device Control Register. */ | |
2200 | ctrl = E1000_READ_REG(hw, CTRL); | |
2201 | ||
2202 | /* Set the bits to Force Speed and Duplex in the Device Ctrl Reg. */ | |
2203 | ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
2204 | ctrl &= ~(DEVICE_SPEED_MASK); | |
2205 | ||
2206 | /* Clear the Auto Speed Detect Enable bit. */ | |
2207 | ctrl &= ~E1000_CTRL_ASDE; | |
2208 | ||
2209 | /* Read the MII Control Register. */ | |
2210 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &mii_ctrl_reg); | |
8fc897b0 | 2211 | if (ret_val) |
1da177e4 LT |
2212 | return ret_val; |
2213 | ||
2214 | /* We need to disable autoneg in order to force link and duplex. */ | |
2215 | ||
2216 | mii_ctrl_reg &= ~MII_CR_AUTO_NEG_EN; | |
2217 | ||
2218 | /* Are we forcing Full or Half Duplex? */ | |
8fc897b0 AK |
2219 | if (hw->forced_speed_duplex == e1000_100_full || |
2220 | hw->forced_speed_duplex == e1000_10_full) { | |
1da177e4 LT |
2221 | /* We want to force full duplex so we SET the full duplex bits in the |
2222 | * Device and MII Control Registers. | |
2223 | */ | |
2224 | ctrl |= E1000_CTRL_FD; | |
2225 | mii_ctrl_reg |= MII_CR_FULL_DUPLEX; | |
2226 | DEBUGOUT("Full Duplex\n"); | |
2227 | } else { | |
2228 | /* We want to force half duplex so we CLEAR the full duplex bits in | |
2229 | * the Device and MII Control Registers. | |
2230 | */ | |
2231 | ctrl &= ~E1000_CTRL_FD; | |
2232 | mii_ctrl_reg &= ~MII_CR_FULL_DUPLEX; | |
2233 | DEBUGOUT("Half Duplex\n"); | |
2234 | } | |
2235 | ||
2236 | /* Are we forcing 100Mbps??? */ | |
8fc897b0 | 2237 | if (hw->forced_speed_duplex == e1000_100_full || |
1da177e4 LT |
2238 | hw->forced_speed_duplex == e1000_100_half) { |
2239 | /* Set the 100Mb bit and turn off the 1000Mb and 10Mb bits. */ | |
2240 | ctrl |= E1000_CTRL_SPD_100; | |
2241 | mii_ctrl_reg |= MII_CR_SPEED_100; | |
2242 | mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_10); | |
2243 | DEBUGOUT("Forcing 100mb "); | |
2244 | } else { | |
2245 | /* Set the 10Mb bit and turn off the 1000Mb and 100Mb bits. */ | |
2246 | ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); | |
2247 | mii_ctrl_reg |= MII_CR_SPEED_10; | |
2248 | mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_100); | |
2249 | DEBUGOUT("Forcing 10mb "); | |
2250 | } | |
2251 | ||
2252 | e1000_config_collision_dist(hw); | |
2253 | ||
2254 | /* Write the configured values back to the Device Control Reg. */ | |
2255 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2256 | ||
6418ecc6 JK |
2257 | if ((hw->phy_type == e1000_phy_m88) || |
2258 | (hw->phy_type == e1000_phy_gg82563)) { | |
1da177e4 | 2259 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); |
8fc897b0 | 2260 | if (ret_val) |
1da177e4 LT |
2261 | return ret_val; |
2262 | ||
2263 | /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI | |
2264 | * forced whenever speed are duplex are forced. | |
2265 | */ | |
2266 | phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; | |
2267 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); | |
8fc897b0 | 2268 | if (ret_val) |
1da177e4 LT |
2269 | return ret_val; |
2270 | ||
2271 | DEBUGOUT1("M88E1000 PSCR: %x \n", phy_data); | |
2272 | ||
2273 | /* Need to reset the PHY or these changes will be ignored */ | |
2274 | mii_ctrl_reg |= MII_CR_RESET; | |
cd94dd0b AK |
2275 | /* Disable MDI-X support for 10/100 */ |
2276 | } else if (hw->phy_type == e1000_phy_ife) { | |
2277 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); | |
2278 | if (ret_val) | |
2279 | return ret_val; | |
2280 | ||
2281 | phy_data &= ~IFE_PMC_AUTO_MDIX; | |
2282 | phy_data &= ~IFE_PMC_FORCE_MDIX; | |
2283 | ||
2284 | ret_val = e1000_write_phy_reg(hw, IFE_PHY_MDIX_CONTROL, phy_data); | |
2285 | if (ret_val) | |
2286 | return ret_val; | |
1da177e4 LT |
2287 | } else { |
2288 | /* Clear Auto-Crossover to force MDI manually. IGP requires MDI | |
2289 | * forced whenever speed or duplex are forced. | |
2290 | */ | |
2291 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); | |
8fc897b0 | 2292 | if (ret_val) |
1da177e4 LT |
2293 | return ret_val; |
2294 | ||
2295 | phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; | |
2296 | phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; | |
2297 | ||
2298 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); | |
8fc897b0 | 2299 | if (ret_val) |
1da177e4 LT |
2300 | return ret_val; |
2301 | } | |
2302 | ||
2303 | /* Write back the modified PHY MII control register. */ | |
2304 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, mii_ctrl_reg); | |
8fc897b0 | 2305 | if (ret_val) |
1da177e4 LT |
2306 | return ret_val; |
2307 | ||
2308 | udelay(1); | |
2309 | ||
2310 | /* The wait_autoneg_complete flag may be a little misleading here. | |
2311 | * Since we are forcing speed and duplex, Auto-Neg is not enabled. | |
2312 | * But we do want to delay for a period while forcing only so we | |
2313 | * don't generate false No Link messages. So we will wait here | |
2314 | * only if the user has set wait_autoneg_complete to 1, which is | |
2315 | * the default. | |
2316 | */ | |
8fc897b0 | 2317 | if (hw->wait_autoneg_complete) { |
1da177e4 LT |
2318 | /* We will wait for autoneg to complete. */ |
2319 | DEBUGOUT("Waiting for forced speed/duplex link.\n"); | |
2320 | mii_status_reg = 0; | |
2321 | ||
2322 | /* We will wait for autoneg to complete or 4.5 seconds to expire. */ | |
8fc897b0 | 2323 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
1da177e4 LT |
2324 | /* Read the MII Status Register and wait for Auto-Neg Complete bit |
2325 | * to be set. | |
2326 | */ | |
2327 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2328 | if (ret_val) |
1da177e4 LT |
2329 | return ret_val; |
2330 | ||
2331 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2332 | if (ret_val) |
1da177e4 LT |
2333 | return ret_val; |
2334 | ||
8fc897b0 | 2335 | if (mii_status_reg & MII_SR_LINK_STATUS) break; |
f8ec4733 | 2336 | msleep(100); |
1da177e4 | 2337 | } |
8fc897b0 | 2338 | if ((i == 0) && |
6418ecc6 JK |
2339 | ((hw->phy_type == e1000_phy_m88) || |
2340 | (hw->phy_type == e1000_phy_gg82563))) { | |
1da177e4 LT |
2341 | /* We didn't get link. Reset the DSP and wait again for link. */ |
2342 | ret_val = e1000_phy_reset_dsp(hw); | |
8fc897b0 | 2343 | if (ret_val) { |
1da177e4 LT |
2344 | DEBUGOUT("Error Resetting PHY DSP\n"); |
2345 | return ret_val; | |
2346 | } | |
2347 | } | |
2348 | /* This loop will early-out if the link condition has been met. */ | |
8fc897b0 AK |
2349 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
2350 | if (mii_status_reg & MII_SR_LINK_STATUS) break; | |
f8ec4733 | 2351 | msleep(100); |
1da177e4 LT |
2352 | /* Read the MII Status Register and wait for Auto-Neg Complete bit |
2353 | * to be set. | |
2354 | */ | |
2355 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2356 | if (ret_val) |
1da177e4 LT |
2357 | return ret_val; |
2358 | ||
2359 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2360 | if (ret_val) |
1da177e4 LT |
2361 | return ret_val; |
2362 | } | |
2363 | } | |
2364 | ||
2365 | if (hw->phy_type == e1000_phy_m88) { | |
2366 | /* Because we reset the PHY above, we need to re-force TX_CLK in the | |
2367 | * Extended PHY Specific Control Register to 25MHz clock. This value | |
2368 | * defaults back to a 2.5MHz clock when the PHY is reset. | |
2369 | */ | |
2370 | ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 2371 | if (ret_val) |
1da177e4 LT |
2372 | return ret_val; |
2373 | ||
2374 | phy_data |= M88E1000_EPSCR_TX_CLK_25; | |
2375 | ret_val = e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data); | |
8fc897b0 | 2376 | if (ret_val) |
1da177e4 LT |
2377 | return ret_val; |
2378 | ||
2379 | /* In addition, because of the s/w reset above, we need to enable CRS on | |
2380 | * TX. This must be set for both full and half duplex operation. | |
2381 | */ | |
2382 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 2383 | if (ret_val) |
1da177e4 LT |
2384 | return ret_val; |
2385 | ||
2386 | phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; | |
2387 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); | |
8fc897b0 | 2388 | if (ret_val) |
1da177e4 LT |
2389 | return ret_val; |
2390 | ||
8fc897b0 AK |
2391 | if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && |
2392 | (!hw->autoneg) && (hw->forced_speed_duplex == e1000_10_full || | |
2393 | hw->forced_speed_duplex == e1000_10_half)) { | |
1da177e4 | 2394 | ret_val = e1000_polarity_reversal_workaround(hw); |
8fc897b0 | 2395 | if (ret_val) |
1da177e4 LT |
2396 | return ret_val; |
2397 | } | |
6418ecc6 JK |
2398 | } else if (hw->phy_type == e1000_phy_gg82563) { |
2399 | /* The TX_CLK of the Extended PHY Specific Control Register defaults | |
2400 | * to 2.5MHz on a reset. We need to re-force it back to 25MHz, if | |
2401 | * we're not in a forced 10/duplex configuration. */ | |
2402 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data); | |
2403 | if (ret_val) | |
2404 | return ret_val; | |
2405 | ||
2406 | phy_data &= ~GG82563_MSCR_TX_CLK_MASK; | |
2407 | if ((hw->forced_speed_duplex == e1000_10_full) || | |
2408 | (hw->forced_speed_duplex == e1000_10_half)) | |
2409 | phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5MHZ; | |
2410 | else | |
2411 | phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25MHZ; | |
2412 | ||
2413 | /* Also due to the reset, we need to enable CRS on Tx. */ | |
2414 | phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; | |
2415 | ||
2416 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data); | |
2417 | if (ret_val) | |
2418 | return ret_val; | |
1da177e4 LT |
2419 | } |
2420 | return E1000_SUCCESS; | |
2421 | } | |
2422 | ||
2423 | /****************************************************************************** | |
2424 | * Sets the collision distance in the Transmit Control register | |
2425 | * | |
2426 | * hw - Struct containing variables accessed by shared code | |
2427 | * | |
2428 | * Link should have been established previously. Reads the speed and duplex | |
2429 | * information from the Device Status register. | |
2430 | ******************************************************************************/ | |
2431 | void | |
2432 | e1000_config_collision_dist(struct e1000_hw *hw) | |
2433 | { | |
0fadb059 | 2434 | uint32_t tctl, coll_dist; |
1da177e4 LT |
2435 | |
2436 | DEBUGFUNC("e1000_config_collision_dist"); | |
2437 | ||
0fadb059 JK |
2438 | if (hw->mac_type < e1000_82543) |
2439 | coll_dist = E1000_COLLISION_DISTANCE_82542; | |
2440 | else | |
2441 | coll_dist = E1000_COLLISION_DISTANCE; | |
2442 | ||
1da177e4 LT |
2443 | tctl = E1000_READ_REG(hw, TCTL); |
2444 | ||
2445 | tctl &= ~E1000_TCTL_COLD; | |
0fadb059 | 2446 | tctl |= coll_dist << E1000_COLD_SHIFT; |
1da177e4 LT |
2447 | |
2448 | E1000_WRITE_REG(hw, TCTL, tctl); | |
2449 | E1000_WRITE_FLUSH(hw); | |
2450 | } | |
2451 | ||
2452 | /****************************************************************************** | |
2453 | * Sets MAC speed and duplex settings to reflect the those in the PHY | |
2454 | * | |
2455 | * hw - Struct containing variables accessed by shared code | |
2456 | * mii_reg - data to write to the MII control register | |
2457 | * | |
2458 | * The contents of the PHY register containing the needed information need to | |
2459 | * be passed in. | |
2460 | ******************************************************************************/ | |
2461 | static int32_t | |
2462 | e1000_config_mac_to_phy(struct e1000_hw *hw) | |
2463 | { | |
2464 | uint32_t ctrl; | |
2465 | int32_t ret_val; | |
2466 | uint16_t phy_data; | |
2467 | ||
2468 | DEBUGFUNC("e1000_config_mac_to_phy"); | |
2469 | ||
76c224bc | 2470 | /* 82544 or newer MAC, Auto Speed Detection takes care of |
2d7edb92 MC |
2471 | * MAC speed/duplex configuration.*/ |
2472 | if (hw->mac_type >= e1000_82544) | |
2473 | return E1000_SUCCESS; | |
2474 | ||
1da177e4 LT |
2475 | /* Read the Device Control Register and set the bits to Force Speed |
2476 | * and Duplex. | |
2477 | */ | |
2478 | ctrl = E1000_READ_REG(hw, CTRL); | |
2479 | ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
2480 | ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS); | |
2481 | ||
2482 | /* Set up duplex in the Device Control and Transmit Control | |
2483 | * registers depending on negotiated values. | |
2484 | */ | |
2d7edb92 | 2485 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); |
8fc897b0 | 2486 | if (ret_val) |
2d7edb92 | 2487 | return ret_val; |
1da177e4 | 2488 | |
8fc897b0 | 2489 | if (phy_data & M88E1000_PSSR_DPLX) |
2d7edb92 | 2490 | ctrl |= E1000_CTRL_FD; |
76c224bc | 2491 | else |
2d7edb92 | 2492 | ctrl &= ~E1000_CTRL_FD; |
1da177e4 | 2493 | |
2d7edb92 | 2494 | e1000_config_collision_dist(hw); |
1da177e4 | 2495 | |
2d7edb92 MC |
2496 | /* Set up speed in the Device Control register depending on |
2497 | * negotiated values. | |
2498 | */ | |
8fc897b0 | 2499 | if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) |
2d7edb92 | 2500 | ctrl |= E1000_CTRL_SPD_1000; |
8fc897b0 | 2501 | else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS) |
2d7edb92 | 2502 | ctrl |= E1000_CTRL_SPD_100; |
1da177e4 | 2503 | |
1da177e4 LT |
2504 | /* Write the configured values back to the Device Control Reg. */ |
2505 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2506 | return E1000_SUCCESS; | |
2507 | } | |
2508 | ||
2509 | /****************************************************************************** | |
2510 | * Forces the MAC's flow control settings. | |
2511 | * | |
2512 | * hw - Struct containing variables accessed by shared code | |
2513 | * | |
2514 | * Sets the TFCE and RFCE bits in the device control register to reflect | |
2515 | * the adapter settings. TFCE and RFCE need to be explicitly set by | |
2516 | * software when a Copper PHY is used because autonegotiation is managed | |
2517 | * by the PHY rather than the MAC. Software must also configure these | |
2518 | * bits when link is forced on a fiber connection. | |
2519 | *****************************************************************************/ | |
2520 | int32_t | |
2521 | e1000_force_mac_fc(struct e1000_hw *hw) | |
2522 | { | |
2523 | uint32_t ctrl; | |
2524 | ||
2525 | DEBUGFUNC("e1000_force_mac_fc"); | |
2526 | ||
2527 | /* Get the current configuration of the Device Control Register */ | |
2528 | ctrl = E1000_READ_REG(hw, CTRL); | |
2529 | ||
2530 | /* Because we didn't get link via the internal auto-negotiation | |
2531 | * mechanism (we either forced link or we got link via PHY | |
2532 | * auto-neg), we have to manually enable/disable transmit an | |
2533 | * receive flow control. | |
2534 | * | |
2535 | * The "Case" statement below enables/disable flow control | |
2536 | * according to the "hw->fc" parameter. | |
2537 | * | |
2538 | * The possible values of the "fc" parameter are: | |
2539 | * 0: Flow control is completely disabled | |
2540 | * 1: Rx flow control is enabled (we can receive pause | |
2541 | * frames but not send pause frames). | |
2542 | * 2: Tx flow control is enabled (we can send pause frames | |
2543 | * frames but we do not receive pause frames). | |
2544 | * 3: Both Rx and TX flow control (symmetric) is enabled. | |
2545 | * other: No other values should be possible at this point. | |
2546 | */ | |
2547 | ||
2548 | switch (hw->fc) { | |
2549 | case e1000_fc_none: | |
2550 | ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE)); | |
2551 | break; | |
2552 | case e1000_fc_rx_pause: | |
2553 | ctrl &= (~E1000_CTRL_TFCE); | |
2554 | ctrl |= E1000_CTRL_RFCE; | |
2555 | break; | |
2556 | case e1000_fc_tx_pause: | |
2557 | ctrl &= (~E1000_CTRL_RFCE); | |
2558 | ctrl |= E1000_CTRL_TFCE; | |
2559 | break; | |
2560 | case e1000_fc_full: | |
2561 | ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE); | |
2562 | break; | |
2563 | default: | |
2564 | DEBUGOUT("Flow control param set incorrectly\n"); | |
2565 | return -E1000_ERR_CONFIG; | |
2566 | } | |
2567 | ||
2568 | /* Disable TX Flow Control for 82542 (rev 2.0) */ | |
8fc897b0 | 2569 | if (hw->mac_type == e1000_82542_rev2_0) |
1da177e4 LT |
2570 | ctrl &= (~E1000_CTRL_TFCE); |
2571 | ||
2572 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2573 | return E1000_SUCCESS; | |
2574 | } | |
2575 | ||
2576 | /****************************************************************************** | |
2577 | * Configures flow control settings after link is established | |
2578 | * | |
2579 | * hw - Struct containing variables accessed by shared code | |
2580 | * | |
2581 | * Should be called immediately after a valid link has been established. | |
2582 | * Forces MAC flow control settings if link was forced. When in MII/GMII mode | |
2583 | * and autonegotiation is enabled, the MAC flow control settings will be set | |
2584 | * based on the flow control negotiated by the PHY. In TBI mode, the TFCE | |
2585 | * and RFCE bits will be automaticaly set to the negotiated flow control mode. | |
2586 | *****************************************************************************/ | |
3ad2cc67 | 2587 | static int32_t |
1da177e4 LT |
2588 | e1000_config_fc_after_link_up(struct e1000_hw *hw) |
2589 | { | |
2590 | int32_t ret_val; | |
2591 | uint16_t mii_status_reg; | |
2592 | uint16_t mii_nway_adv_reg; | |
2593 | uint16_t mii_nway_lp_ability_reg; | |
2594 | uint16_t speed; | |
2595 | uint16_t duplex; | |
2596 | ||
2597 | DEBUGFUNC("e1000_config_fc_after_link_up"); | |
2598 | ||
2599 | /* Check for the case where we have fiber media and auto-neg failed | |
2600 | * so we had to force link. In this case, we need to force the | |
2601 | * configuration of the MAC to match the "fc" parameter. | |
2602 | */ | |
8fc897b0 AK |
2603 | if (((hw->media_type == e1000_media_type_fiber) && (hw->autoneg_failed)) || |
2604 | ((hw->media_type == e1000_media_type_internal_serdes) && | |
2605 | (hw->autoneg_failed)) || | |
2606 | ((hw->media_type == e1000_media_type_copper) && (!hw->autoneg))) { | |
1da177e4 | 2607 | ret_val = e1000_force_mac_fc(hw); |
8fc897b0 | 2608 | if (ret_val) { |
1da177e4 LT |
2609 | DEBUGOUT("Error forcing flow control settings\n"); |
2610 | return ret_val; | |
2611 | } | |
2612 | } | |
2613 | ||
2614 | /* Check for the case where we have copper media and auto-neg is | |
2615 | * enabled. In this case, we need to check and see if Auto-Neg | |
2616 | * has completed, and if so, how the PHY and link partner has | |
2617 | * flow control configured. | |
2618 | */ | |
8fc897b0 | 2619 | if ((hw->media_type == e1000_media_type_copper) && hw->autoneg) { |
1da177e4 LT |
2620 | /* Read the MII Status Register and check to see if AutoNeg |
2621 | * has completed. We read this twice because this reg has | |
2622 | * some "sticky" (latched) bits. | |
2623 | */ | |
2624 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2625 | if (ret_val) |
1da177e4 LT |
2626 | return ret_val; |
2627 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2628 | if (ret_val) |
1da177e4 LT |
2629 | return ret_val; |
2630 | ||
8fc897b0 | 2631 | if (mii_status_reg & MII_SR_AUTONEG_COMPLETE) { |
1da177e4 LT |
2632 | /* The AutoNeg process has completed, so we now need to |
2633 | * read both the Auto Negotiation Advertisement Register | |
2634 | * (Address 4) and the Auto_Negotiation Base Page Ability | |
2635 | * Register (Address 5) to determine how flow control was | |
2636 | * negotiated. | |
2637 | */ | |
2638 | ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, | |
2639 | &mii_nway_adv_reg); | |
8fc897b0 | 2640 | if (ret_val) |
1da177e4 LT |
2641 | return ret_val; |
2642 | ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, | |
2643 | &mii_nway_lp_ability_reg); | |
8fc897b0 | 2644 | if (ret_val) |
1da177e4 LT |
2645 | return ret_val; |
2646 | ||
2647 | /* Two bits in the Auto Negotiation Advertisement Register | |
2648 | * (Address 4) and two bits in the Auto Negotiation Base | |
2649 | * Page Ability Register (Address 5) determine flow control | |
2650 | * for both the PHY and the link partner. The following | |
2651 | * table, taken out of the IEEE 802.3ab/D6.0 dated March 25, | |
2652 | * 1999, describes these PAUSE resolution bits and how flow | |
2653 | * control is determined based upon these settings. | |
2654 | * NOTE: DC = Don't Care | |
2655 | * | |
2656 | * LOCAL DEVICE | LINK PARTNER | |
2657 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution | |
2658 | *-------|---------|-------|---------|-------------------- | |
2659 | * 0 | 0 | DC | DC | e1000_fc_none | |
2660 | * 0 | 1 | 0 | DC | e1000_fc_none | |
2661 | * 0 | 1 | 1 | 0 | e1000_fc_none | |
2662 | * 0 | 1 | 1 | 1 | e1000_fc_tx_pause | |
2663 | * 1 | 0 | 0 | DC | e1000_fc_none | |
2664 | * 1 | DC | 1 | DC | e1000_fc_full | |
2665 | * 1 | 1 | 0 | 0 | e1000_fc_none | |
2666 | * 1 | 1 | 0 | 1 | e1000_fc_rx_pause | |
2667 | * | |
2668 | */ | |
2669 | /* Are both PAUSE bits set to 1? If so, this implies | |
2670 | * Symmetric Flow Control is enabled at both ends. The | |
2671 | * ASM_DIR bits are irrelevant per the spec. | |
2672 | * | |
2673 | * For Symmetric Flow Control: | |
2674 | * | |
2675 | * LOCAL DEVICE | LINK PARTNER | |
2676 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result | |
2677 | *-------|---------|-------|---------|-------------------- | |
2678 | * 1 | DC | 1 | DC | e1000_fc_full | |
2679 | * | |
2680 | */ | |
8fc897b0 AK |
2681 | if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && |
2682 | (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) { | |
1da177e4 LT |
2683 | /* Now we need to check if the user selected RX ONLY |
2684 | * of pause frames. In this case, we had to advertise | |
2685 | * FULL flow control because we could not advertise RX | |
2686 | * ONLY. Hence, we must now check to see if we need to | |
2687 | * turn OFF the TRANSMISSION of PAUSE frames. | |
2688 | */ | |
8fc897b0 | 2689 | if (hw->original_fc == e1000_fc_full) { |
1da177e4 | 2690 | hw->fc = e1000_fc_full; |
a42a507c | 2691 | DEBUGOUT("Flow Control = FULL.\n"); |
1da177e4 LT |
2692 | } else { |
2693 | hw->fc = e1000_fc_rx_pause; | |
a42a507c | 2694 | DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); |
1da177e4 LT |
2695 | } |
2696 | } | |
2697 | /* For receiving PAUSE frames ONLY. | |
2698 | * | |
2699 | * LOCAL DEVICE | LINK PARTNER | |
2700 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result | |
2701 | *-------|---------|-------|---------|-------------------- | |
2702 | * 0 | 1 | 1 | 1 | e1000_fc_tx_pause | |
2703 | * | |
2704 | */ | |
8fc897b0 AK |
2705 | else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) && |
2706 | (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && | |
2707 | (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && | |
2708 | (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { | |
1da177e4 | 2709 | hw->fc = e1000_fc_tx_pause; |
a42a507c | 2710 | DEBUGOUT("Flow Control = TX PAUSE frames only.\n"); |
1da177e4 LT |
2711 | } |
2712 | /* For transmitting PAUSE frames ONLY. | |
2713 | * | |
2714 | * LOCAL DEVICE | LINK PARTNER | |
2715 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result | |
2716 | *-------|---------|-------|---------|-------------------- | |
2717 | * 1 | 1 | 0 | 1 | e1000_fc_rx_pause | |
2718 | * | |
2719 | */ | |
8fc897b0 AK |
2720 | else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && |
2721 | (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && | |
2722 | !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && | |
2723 | (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { | |
1da177e4 | 2724 | hw->fc = e1000_fc_rx_pause; |
a42a507c | 2725 | DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); |
1da177e4 LT |
2726 | } |
2727 | /* Per the IEEE spec, at this point flow control should be | |
2728 | * disabled. However, we want to consider that we could | |
2729 | * be connected to a legacy switch that doesn't advertise | |
2730 | * desired flow control, but can be forced on the link | |
2731 | * partner. So if we advertised no flow control, that is | |
2732 | * what we will resolve to. If we advertised some kind of | |
2733 | * receive capability (Rx Pause Only or Full Flow Control) | |
2734 | * and the link partner advertised none, we will configure | |
2735 | * ourselves to enable Rx Flow Control only. We can do | |
2736 | * this safely for two reasons: If the link partner really | |
2737 | * didn't want flow control enabled, and we enable Rx, no | |
2738 | * harm done since we won't be receiving any PAUSE frames | |
2739 | * anyway. If the intent on the link partner was to have | |
2740 | * flow control enabled, then by us enabling RX only, we | |
2741 | * can at least receive pause frames and process them. | |
2742 | * This is a good idea because in most cases, since we are | |
2743 | * predominantly a server NIC, more times than not we will | |
2744 | * be asked to delay transmission of packets than asking | |
2745 | * our link partner to pause transmission of frames. | |
2746 | */ | |
8fc897b0 AK |
2747 | else if ((hw->original_fc == e1000_fc_none || |
2748 | hw->original_fc == e1000_fc_tx_pause) || | |
2749 | hw->fc_strict_ieee) { | |
1da177e4 | 2750 | hw->fc = e1000_fc_none; |
a42a507c | 2751 | DEBUGOUT("Flow Control = NONE.\n"); |
1da177e4 LT |
2752 | } else { |
2753 | hw->fc = e1000_fc_rx_pause; | |
a42a507c | 2754 | DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); |
1da177e4 LT |
2755 | } |
2756 | ||
2757 | /* Now we need to do one last check... If we auto- | |
2758 | * negotiated to HALF DUPLEX, flow control should not be | |
2759 | * enabled per IEEE 802.3 spec. | |
2760 | */ | |
2761 | ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); | |
8fc897b0 | 2762 | if (ret_val) { |
1da177e4 LT |
2763 | DEBUGOUT("Error getting link speed and duplex\n"); |
2764 | return ret_val; | |
2765 | } | |
2766 | ||
8fc897b0 | 2767 | if (duplex == HALF_DUPLEX) |
1da177e4 LT |
2768 | hw->fc = e1000_fc_none; |
2769 | ||
2770 | /* Now we call a subroutine to actually force the MAC | |
2771 | * controller to use the correct flow control settings. | |
2772 | */ | |
2773 | ret_val = e1000_force_mac_fc(hw); | |
8fc897b0 | 2774 | if (ret_val) { |
1da177e4 LT |
2775 | DEBUGOUT("Error forcing flow control settings\n"); |
2776 | return ret_val; | |
2777 | } | |
2778 | } else { | |
a42a507c | 2779 | DEBUGOUT("Copper PHY and Auto Neg has not completed.\n"); |
1da177e4 LT |
2780 | } |
2781 | } | |
2782 | return E1000_SUCCESS; | |
2783 | } | |
2784 | ||
2785 | /****************************************************************************** | |
2786 | * Checks to see if the link status of the hardware has changed. | |
2787 | * | |
2788 | * hw - Struct containing variables accessed by shared code | |
2789 | * | |
2790 | * Called by any function that needs to check the link status of the adapter. | |
2791 | *****************************************************************************/ | |
2792 | int32_t | |
2793 | e1000_check_for_link(struct e1000_hw *hw) | |
2794 | { | |
2795 | uint32_t rxcw = 0; | |
2796 | uint32_t ctrl; | |
2797 | uint32_t status; | |
2798 | uint32_t rctl; | |
2799 | uint32_t icr; | |
2800 | uint32_t signal = 0; | |
2801 | int32_t ret_val; | |
2802 | uint16_t phy_data; | |
2803 | ||
2804 | DEBUGFUNC("e1000_check_for_link"); | |
2805 | ||
2806 | ctrl = E1000_READ_REG(hw, CTRL); | |
2807 | status = E1000_READ_REG(hw, STATUS); | |
2808 | ||
2809 | /* On adapters with a MAC newer than 82544, SW Defineable pin 1 will be | |
2810 | * set when the optics detect a signal. On older adapters, it will be | |
2811 | * cleared when there is a signal. This applies to fiber media only. | |
2812 | */ | |
8fc897b0 AK |
2813 | if ((hw->media_type == e1000_media_type_fiber) || |
2814 | (hw->media_type == e1000_media_type_internal_serdes)) { | |
1da177e4 LT |
2815 | rxcw = E1000_READ_REG(hw, RXCW); |
2816 | ||
8fc897b0 | 2817 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 | 2818 | signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; |
8fc897b0 | 2819 | if (status & E1000_STATUS_LU) |
1da177e4 LT |
2820 | hw->get_link_status = FALSE; |
2821 | } | |
2822 | } | |
2823 | ||
2824 | /* If we have a copper PHY then we only want to go out to the PHY | |
2825 | * registers to see if Auto-Neg has completed and/or if our link | |
2826 | * status has changed. The get_link_status flag will be set if we | |
2827 | * receive a Link Status Change interrupt or we have Rx Sequence | |
2828 | * Errors. | |
2829 | */ | |
8fc897b0 | 2830 | if ((hw->media_type == e1000_media_type_copper) && hw->get_link_status) { |
1da177e4 LT |
2831 | /* First we want to see if the MII Status Register reports |
2832 | * link. If so, then we want to get the current speed/duplex | |
2833 | * of the PHY. | |
2834 | * Read the register twice since the link bit is sticky. | |
2835 | */ | |
2836 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 2837 | if (ret_val) |
1da177e4 LT |
2838 | return ret_val; |
2839 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 2840 | if (ret_val) |
1da177e4 LT |
2841 | return ret_val; |
2842 | ||
8fc897b0 | 2843 | if (phy_data & MII_SR_LINK_STATUS) { |
1da177e4 LT |
2844 | hw->get_link_status = FALSE; |
2845 | /* Check if there was DownShift, must be checked immediately after | |
2846 | * link-up */ | |
2847 | e1000_check_downshift(hw); | |
2848 | ||
2849 | /* If we are on 82544 or 82543 silicon and speed/duplex | |
2850 | * are forced to 10H or 10F, then we will implement the polarity | |
2851 | * reversal workaround. We disable interrupts first, and upon | |
2852 | * returning, place the devices interrupt state to its previous | |
2853 | * value except for the link status change interrupt which will | |
2854 | * happen due to the execution of this workaround. | |
2855 | */ | |
2856 | ||
8fc897b0 AK |
2857 | if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && |
2858 | (!hw->autoneg) && | |
2859 | (hw->forced_speed_duplex == e1000_10_full || | |
2860 | hw->forced_speed_duplex == e1000_10_half)) { | |
1da177e4 LT |
2861 | E1000_WRITE_REG(hw, IMC, 0xffffffff); |
2862 | ret_val = e1000_polarity_reversal_workaround(hw); | |
2863 | icr = E1000_READ_REG(hw, ICR); | |
2864 | E1000_WRITE_REG(hw, ICS, (icr & ~E1000_ICS_LSC)); | |
2865 | E1000_WRITE_REG(hw, IMS, IMS_ENABLE_MASK); | |
2866 | } | |
2867 | ||
2868 | } else { | |
2869 | /* No link detected */ | |
2870 | e1000_config_dsp_after_link_change(hw, FALSE); | |
2871 | return 0; | |
2872 | } | |
2873 | ||
2874 | /* If we are forcing speed/duplex, then we simply return since | |
2875 | * we have already determined whether we have link or not. | |
2876 | */ | |
8fc897b0 | 2877 | if (!hw->autoneg) return -E1000_ERR_CONFIG; |
1da177e4 LT |
2878 | |
2879 | /* optimize the dsp settings for the igp phy */ | |
2880 | e1000_config_dsp_after_link_change(hw, TRUE); | |
2881 | ||
2882 | /* We have a M88E1000 PHY and Auto-Neg is enabled. If we | |
2883 | * have Si on board that is 82544 or newer, Auto | |
2884 | * Speed Detection takes care of MAC speed/duplex | |
2885 | * configuration. So we only need to configure Collision | |
2886 | * Distance in the MAC. Otherwise, we need to force | |
2887 | * speed/duplex on the MAC to the current PHY speed/duplex | |
2888 | * settings. | |
2889 | */ | |
8fc897b0 | 2890 | if (hw->mac_type >= e1000_82544) |
1da177e4 LT |
2891 | e1000_config_collision_dist(hw); |
2892 | else { | |
2893 | ret_val = e1000_config_mac_to_phy(hw); | |
8fc897b0 | 2894 | if (ret_val) { |
1da177e4 LT |
2895 | DEBUGOUT("Error configuring MAC to PHY settings\n"); |
2896 | return ret_val; | |
2897 | } | |
2898 | } | |
2899 | ||
2900 | /* Configure Flow Control now that Auto-Neg has completed. First, we | |
2901 | * need to restore the desired flow control settings because we may | |
2902 | * have had to re-autoneg with a different link partner. | |
2903 | */ | |
2904 | ret_val = e1000_config_fc_after_link_up(hw); | |
8fc897b0 | 2905 | if (ret_val) { |
1da177e4 LT |
2906 | DEBUGOUT("Error configuring flow control\n"); |
2907 | return ret_val; | |
2908 | } | |
2909 | ||
2910 | /* At this point we know that we are on copper and we have | |
2911 | * auto-negotiated link. These are conditions for checking the link | |
2912 | * partner capability register. We use the link speed to determine if | |
2913 | * TBI compatibility needs to be turned on or off. If the link is not | |
2914 | * at gigabit speed, then TBI compatibility is not needed. If we are | |
2915 | * at gigabit speed, we turn on TBI compatibility. | |
2916 | */ | |
8fc897b0 | 2917 | if (hw->tbi_compatibility_en) { |
1da177e4 | 2918 | uint16_t speed, duplex; |
592600a0 AK |
2919 | ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); |
2920 | if (ret_val) { | |
2921 | DEBUGOUT("Error getting link speed and duplex\n"); | |
2922 | return ret_val; | |
2923 | } | |
2924 | if (speed != SPEED_1000) { | |
1da177e4 LT |
2925 | /* If link speed is not set to gigabit speed, we do not need |
2926 | * to enable TBI compatibility. | |
2927 | */ | |
8fc897b0 | 2928 | if (hw->tbi_compatibility_on) { |
1da177e4 LT |
2929 | /* If we previously were in the mode, turn it off. */ |
2930 | rctl = E1000_READ_REG(hw, RCTL); | |
2931 | rctl &= ~E1000_RCTL_SBP; | |
2932 | E1000_WRITE_REG(hw, RCTL, rctl); | |
2933 | hw->tbi_compatibility_on = FALSE; | |
2934 | } | |
2935 | } else { | |
2936 | /* If TBI compatibility is was previously off, turn it on. For | |
2937 | * compatibility with a TBI link partner, we will store bad | |
2938 | * packets. Some frames have an additional byte on the end and | |
2939 | * will look like CRC errors to to the hardware. | |
2940 | */ | |
8fc897b0 | 2941 | if (!hw->tbi_compatibility_on) { |
1da177e4 LT |
2942 | hw->tbi_compatibility_on = TRUE; |
2943 | rctl = E1000_READ_REG(hw, RCTL); | |
2944 | rctl |= E1000_RCTL_SBP; | |
2945 | E1000_WRITE_REG(hw, RCTL, rctl); | |
2946 | } | |
2947 | } | |
2948 | } | |
2949 | } | |
2950 | /* If we don't have link (auto-negotiation failed or link partner cannot | |
2951 | * auto-negotiate), the cable is plugged in (we have signal), and our | |
2952 | * link partner is not trying to auto-negotiate with us (we are receiving | |
2953 | * idles or data), we need to force link up. We also need to give | |
2954 | * auto-negotiation time to complete, in case the cable was just plugged | |
2955 | * in. The autoneg_failed flag does this. | |
2956 | */ | |
8fc897b0 | 2957 | else if ((((hw->media_type == e1000_media_type_fiber) && |
1da177e4 | 2958 | ((ctrl & E1000_CTRL_SWDPIN1) == signal)) || |
8fc897b0 AK |
2959 | (hw->media_type == e1000_media_type_internal_serdes)) && |
2960 | (!(status & E1000_STATUS_LU)) && | |
2961 | (!(rxcw & E1000_RXCW_C))) { | |
2962 | if (hw->autoneg_failed == 0) { | |
1da177e4 LT |
2963 | hw->autoneg_failed = 1; |
2964 | return 0; | |
2965 | } | |
a42a507c | 2966 | DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n"); |
1da177e4 LT |
2967 | |
2968 | /* Disable auto-negotiation in the TXCW register */ | |
2969 | E1000_WRITE_REG(hw, TXCW, (hw->txcw & ~E1000_TXCW_ANE)); | |
2970 | ||
2971 | /* Force link-up and also force full-duplex. */ | |
2972 | ctrl = E1000_READ_REG(hw, CTRL); | |
2973 | ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD); | |
2974 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2975 | ||
2976 | /* Configure Flow Control after forcing link up. */ | |
2977 | ret_val = e1000_config_fc_after_link_up(hw); | |
8fc897b0 | 2978 | if (ret_val) { |
1da177e4 LT |
2979 | DEBUGOUT("Error configuring flow control\n"); |
2980 | return ret_val; | |
2981 | } | |
2982 | } | |
2983 | /* If we are forcing link and we are receiving /C/ ordered sets, re-enable | |
2984 | * auto-negotiation in the TXCW register and disable forced link in the | |
2985 | * Device Control register in an attempt to auto-negotiate with our link | |
2986 | * partner. | |
2987 | */ | |
8fc897b0 AK |
2988 | else if (((hw->media_type == e1000_media_type_fiber) || |
2989 | (hw->media_type == e1000_media_type_internal_serdes)) && | |
2990 | (ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) { | |
a42a507c | 2991 | DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n"); |
1da177e4 LT |
2992 | E1000_WRITE_REG(hw, TXCW, hw->txcw); |
2993 | E1000_WRITE_REG(hw, CTRL, (ctrl & ~E1000_CTRL_SLU)); | |
2994 | ||
2995 | hw->serdes_link_down = FALSE; | |
2996 | } | |
2997 | /* If we force link for non-auto-negotiation switch, check link status | |
2998 | * based on MAC synchronization for internal serdes media type. | |
2999 | */ | |
8fc897b0 AK |
3000 | else if ((hw->media_type == e1000_media_type_internal_serdes) && |
3001 | !(E1000_TXCW_ANE & E1000_READ_REG(hw, TXCW))) { | |
1da177e4 LT |
3002 | /* SYNCH bit and IV bit are sticky. */ |
3003 | udelay(10); | |
8fc897b0 AK |
3004 | if (E1000_RXCW_SYNCH & E1000_READ_REG(hw, RXCW)) { |
3005 | if (!(rxcw & E1000_RXCW_IV)) { | |
1da177e4 LT |
3006 | hw->serdes_link_down = FALSE; |
3007 | DEBUGOUT("SERDES: Link is up.\n"); | |
3008 | } | |
3009 | } else { | |
3010 | hw->serdes_link_down = TRUE; | |
3011 | DEBUGOUT("SERDES: Link is down.\n"); | |
3012 | } | |
3013 | } | |
8fc897b0 AK |
3014 | if ((hw->media_type == e1000_media_type_internal_serdes) && |
3015 | (E1000_TXCW_ANE & E1000_READ_REG(hw, TXCW))) { | |
1da177e4 LT |
3016 | hw->serdes_link_down = !(E1000_STATUS_LU & E1000_READ_REG(hw, STATUS)); |
3017 | } | |
3018 | return E1000_SUCCESS; | |
3019 | } | |
3020 | ||
3021 | /****************************************************************************** | |
3022 | * Detects the current speed and duplex settings of the hardware. | |
3023 | * | |
3024 | * hw - Struct containing variables accessed by shared code | |
3025 | * speed - Speed of the connection | |
3026 | * duplex - Duplex setting of the connection | |
3027 | *****************************************************************************/ | |
3028 | int32_t | |
3029 | e1000_get_speed_and_duplex(struct e1000_hw *hw, | |
3030 | uint16_t *speed, | |
3031 | uint16_t *duplex) | |
3032 | { | |
3033 | uint32_t status; | |
3034 | int32_t ret_val; | |
3035 | uint16_t phy_data; | |
3036 | ||
3037 | DEBUGFUNC("e1000_get_speed_and_duplex"); | |
3038 | ||
8fc897b0 | 3039 | if (hw->mac_type >= e1000_82543) { |
1da177e4 | 3040 | status = E1000_READ_REG(hw, STATUS); |
8fc897b0 | 3041 | if (status & E1000_STATUS_SPEED_1000) { |
1da177e4 LT |
3042 | *speed = SPEED_1000; |
3043 | DEBUGOUT("1000 Mbs, "); | |
8fc897b0 | 3044 | } else if (status & E1000_STATUS_SPEED_100) { |
1da177e4 LT |
3045 | *speed = SPEED_100; |
3046 | DEBUGOUT("100 Mbs, "); | |
3047 | } else { | |
3048 | *speed = SPEED_10; | |
3049 | DEBUGOUT("10 Mbs, "); | |
3050 | } | |
3051 | ||
8fc897b0 | 3052 | if (status & E1000_STATUS_FD) { |
1da177e4 | 3053 | *duplex = FULL_DUPLEX; |
a42a507c | 3054 | DEBUGOUT("Full Duplex\n"); |
1da177e4 LT |
3055 | } else { |
3056 | *duplex = HALF_DUPLEX; | |
a42a507c | 3057 | DEBUGOUT(" Half Duplex\n"); |
1da177e4 LT |
3058 | } |
3059 | } else { | |
a42a507c | 3060 | DEBUGOUT("1000 Mbs, Full Duplex\n"); |
1da177e4 LT |
3061 | *speed = SPEED_1000; |
3062 | *duplex = FULL_DUPLEX; | |
3063 | } | |
3064 | ||
3065 | /* IGP01 PHY may advertise full duplex operation after speed downgrade even | |
3066 | * if it is operating at half duplex. Here we set the duplex settings to | |
3067 | * match the duplex in the link partner's capabilities. | |
3068 | */ | |
8fc897b0 | 3069 | if (hw->phy_type == e1000_phy_igp && hw->speed_downgraded) { |
1da177e4 | 3070 | ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_EXP, &phy_data); |
8fc897b0 | 3071 | if (ret_val) |
1da177e4 LT |
3072 | return ret_val; |
3073 | ||
8fc897b0 | 3074 | if (!(phy_data & NWAY_ER_LP_NWAY_CAPS)) |
1da177e4 LT |
3075 | *duplex = HALF_DUPLEX; |
3076 | else { | |
3077 | ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, &phy_data); | |
8fc897b0 | 3078 | if (ret_val) |
1da177e4 | 3079 | return ret_val; |
8fc897b0 | 3080 | if ((*speed == SPEED_100 && !(phy_data & NWAY_LPAR_100TX_FD_CAPS)) || |
1da177e4 LT |
3081 | (*speed == SPEED_10 && !(phy_data & NWAY_LPAR_10T_FD_CAPS))) |
3082 | *duplex = HALF_DUPLEX; | |
3083 | } | |
3084 | } | |
3085 | ||
76c224bc | 3086 | if ((hw->mac_type == e1000_80003es2lan) && |
6418ecc6 JK |
3087 | (hw->media_type == e1000_media_type_copper)) { |
3088 | if (*speed == SPEED_1000) | |
3089 | ret_val = e1000_configure_kmrn_for_1000(hw); | |
3090 | else | |
cd94dd0b AK |
3091 | ret_val = e1000_configure_kmrn_for_10_100(hw, *duplex); |
3092 | if (ret_val) | |
3093 | return ret_val; | |
3094 | } | |
3095 | ||
3096 | if ((hw->phy_type == e1000_phy_igp_3) && (*speed == SPEED_1000)) { | |
3097 | ret_val = e1000_kumeran_lock_loss_workaround(hw); | |
6418ecc6 JK |
3098 | if (ret_val) |
3099 | return ret_val; | |
3100 | } | |
3101 | ||
1da177e4 LT |
3102 | return E1000_SUCCESS; |
3103 | } | |
3104 | ||
3105 | /****************************************************************************** | |
3106 | * Blocks until autoneg completes or times out (~4.5 seconds) | |
3107 | * | |
3108 | * hw - Struct containing variables accessed by shared code | |
3109 | ******************************************************************************/ | |
3ad2cc67 | 3110 | static int32_t |
1da177e4 LT |
3111 | e1000_wait_autoneg(struct e1000_hw *hw) |
3112 | { | |
3113 | int32_t ret_val; | |
3114 | uint16_t i; | |
3115 | uint16_t phy_data; | |
3116 | ||
3117 | DEBUGFUNC("e1000_wait_autoneg"); | |
3118 | DEBUGOUT("Waiting for Auto-Neg to complete.\n"); | |
3119 | ||
3120 | /* We will wait for autoneg to complete or 4.5 seconds to expire. */ | |
8fc897b0 | 3121 | for (i = PHY_AUTO_NEG_TIME; i > 0; i--) { |
1da177e4 LT |
3122 | /* Read the MII Status Register and wait for Auto-Neg |
3123 | * Complete bit to be set. | |
3124 | */ | |
3125 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 3126 | if (ret_val) |
1da177e4 LT |
3127 | return ret_val; |
3128 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 3129 | if (ret_val) |
1da177e4 | 3130 | return ret_val; |
8fc897b0 | 3131 | if (phy_data & MII_SR_AUTONEG_COMPLETE) { |
1da177e4 LT |
3132 | return E1000_SUCCESS; |
3133 | } | |
f8ec4733 | 3134 | msleep(100); |
1da177e4 LT |
3135 | } |
3136 | return E1000_SUCCESS; | |
3137 | } | |
3138 | ||
3139 | /****************************************************************************** | |
3140 | * Raises the Management Data Clock | |
3141 | * | |
3142 | * hw - Struct containing variables accessed by shared code | |
3143 | * ctrl - Device control register's current value | |
3144 | ******************************************************************************/ | |
3145 | static void | |
3146 | e1000_raise_mdi_clk(struct e1000_hw *hw, | |
3147 | uint32_t *ctrl) | |
3148 | { | |
3149 | /* Raise the clock input to the Management Data Clock (by setting the MDC | |
3150 | * bit), and then delay 10 microseconds. | |
3151 | */ | |
3152 | E1000_WRITE_REG(hw, CTRL, (*ctrl | E1000_CTRL_MDC)); | |
3153 | E1000_WRITE_FLUSH(hw); | |
3154 | udelay(10); | |
3155 | } | |
3156 | ||
3157 | /****************************************************************************** | |
3158 | * Lowers the Management Data Clock | |
3159 | * | |
3160 | * hw - Struct containing variables accessed by shared code | |
3161 | * ctrl - Device control register's current value | |
3162 | ******************************************************************************/ | |
3163 | static void | |
3164 | e1000_lower_mdi_clk(struct e1000_hw *hw, | |
3165 | uint32_t *ctrl) | |
3166 | { | |
3167 | /* Lower the clock input to the Management Data Clock (by clearing the MDC | |
3168 | * bit), and then delay 10 microseconds. | |
3169 | */ | |
3170 | E1000_WRITE_REG(hw, CTRL, (*ctrl & ~E1000_CTRL_MDC)); | |
3171 | E1000_WRITE_FLUSH(hw); | |
3172 | udelay(10); | |
3173 | } | |
3174 | ||
3175 | /****************************************************************************** | |
3176 | * Shifts data bits out to the PHY | |
3177 | * | |
3178 | * hw - Struct containing variables accessed by shared code | |
3179 | * data - Data to send out to the PHY | |
3180 | * count - Number of bits to shift out | |
3181 | * | |
3182 | * Bits are shifted out in MSB to LSB order. | |
3183 | ******************************************************************************/ | |
3184 | static void | |
3185 | e1000_shift_out_mdi_bits(struct e1000_hw *hw, | |
3186 | uint32_t data, | |
3187 | uint16_t count) | |
3188 | { | |
3189 | uint32_t ctrl; | |
3190 | uint32_t mask; | |
3191 | ||
3192 | /* We need to shift "count" number of bits out to the PHY. So, the value | |
3193 | * in the "data" parameter will be shifted out to the PHY one bit at a | |
3194 | * time. In order to do this, "data" must be broken down into bits. | |
3195 | */ | |
3196 | mask = 0x01; | |
3197 | mask <<= (count - 1); | |
3198 | ||
3199 | ctrl = E1000_READ_REG(hw, CTRL); | |
3200 | ||
3201 | /* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */ | |
3202 | ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR); | |
3203 | ||
8fc897b0 | 3204 | while (mask) { |
1da177e4 LT |
3205 | /* A "1" is shifted out to the PHY by setting the MDIO bit to "1" and |
3206 | * then raising and lowering the Management Data Clock. A "0" is | |
3207 | * shifted out to the PHY by setting the MDIO bit to "0" and then | |
3208 | * raising and lowering the clock. | |
3209 | */ | |
8fc897b0 AK |
3210 | if (data & mask) |
3211 | ctrl |= E1000_CTRL_MDIO; | |
3212 | else | |
3213 | ctrl &= ~E1000_CTRL_MDIO; | |
1da177e4 LT |
3214 | |
3215 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
3216 | E1000_WRITE_FLUSH(hw); | |
3217 | ||
3218 | udelay(10); | |
3219 | ||
3220 | e1000_raise_mdi_clk(hw, &ctrl); | |
3221 | e1000_lower_mdi_clk(hw, &ctrl); | |
3222 | ||
3223 | mask = mask >> 1; | |
3224 | } | |
3225 | } | |
3226 | ||
3227 | /****************************************************************************** | |
3228 | * Shifts data bits in from the PHY | |
3229 | * | |
3230 | * hw - Struct containing variables accessed by shared code | |
3231 | * | |
3232 | * Bits are shifted in in MSB to LSB order. | |
3233 | ******************************************************************************/ | |
3234 | static uint16_t | |
3235 | e1000_shift_in_mdi_bits(struct e1000_hw *hw) | |
3236 | { | |
3237 | uint32_t ctrl; | |
3238 | uint16_t data = 0; | |
3239 | uint8_t i; | |
3240 | ||
3241 | /* In order to read a register from the PHY, we need to shift in a total | |
3242 | * of 18 bits from the PHY. The first two bit (turnaround) times are used | |
3243 | * to avoid contention on the MDIO pin when a read operation is performed. | |
3244 | * These two bits are ignored by us and thrown away. Bits are "shifted in" | |
3245 | * by raising the input to the Management Data Clock (setting the MDC bit), | |
3246 | * and then reading the value of the MDIO bit. | |
3247 | */ | |
3248 | ctrl = E1000_READ_REG(hw, CTRL); | |
3249 | ||
3250 | /* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as input. */ | |
3251 | ctrl &= ~E1000_CTRL_MDIO_DIR; | |
3252 | ctrl &= ~E1000_CTRL_MDIO; | |
3253 | ||
3254 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
3255 | E1000_WRITE_FLUSH(hw); | |
3256 | ||
3257 | /* Raise and Lower the clock before reading in the data. This accounts for | |
3258 | * the turnaround bits. The first clock occurred when we clocked out the | |
3259 | * last bit of the Register Address. | |
3260 | */ | |
3261 | e1000_raise_mdi_clk(hw, &ctrl); | |
3262 | e1000_lower_mdi_clk(hw, &ctrl); | |
3263 | ||
8fc897b0 | 3264 | for (data = 0, i = 0; i < 16; i++) { |
1da177e4 LT |
3265 | data = data << 1; |
3266 | e1000_raise_mdi_clk(hw, &ctrl); | |
3267 | ctrl = E1000_READ_REG(hw, CTRL); | |
3268 | /* Check to see if we shifted in a "1". */ | |
8fc897b0 AK |
3269 | if (ctrl & E1000_CTRL_MDIO) |
3270 | data |= 1; | |
1da177e4 LT |
3271 | e1000_lower_mdi_clk(hw, &ctrl); |
3272 | } | |
3273 | ||
3274 | e1000_raise_mdi_clk(hw, &ctrl); | |
3275 | e1000_lower_mdi_clk(hw, &ctrl); | |
3276 | ||
3277 | return data; | |
3278 | } | |
3279 | ||
e4c780b1 | 3280 | static int32_t |
6418ecc6 JK |
3281 | e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask) |
3282 | { | |
3283 | uint32_t swfw_sync = 0; | |
3284 | uint32_t swmask = mask; | |
3285 | uint32_t fwmask = mask << 16; | |
3286 | int32_t timeout = 200; | |
3287 | ||
3288 | DEBUGFUNC("e1000_swfw_sync_acquire"); | |
3289 | ||
cd94dd0b AK |
3290 | if (hw->swfwhw_semaphore_present) |
3291 | return e1000_get_software_flag(hw); | |
3292 | ||
6418ecc6 JK |
3293 | if (!hw->swfw_sync_present) |
3294 | return e1000_get_hw_eeprom_semaphore(hw); | |
3295 | ||
8fc897b0 | 3296 | while (timeout) { |
6418ecc6 JK |
3297 | if (e1000_get_hw_eeprom_semaphore(hw)) |
3298 | return -E1000_ERR_SWFW_SYNC; | |
3299 | ||
3300 | swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC); | |
3301 | if (!(swfw_sync & (fwmask | swmask))) { | |
3302 | break; | |
3303 | } | |
3304 | ||
3305 | /* firmware currently using resource (fwmask) */ | |
3306 | /* or other software thread currently using resource (swmask) */ | |
3307 | e1000_put_hw_eeprom_semaphore(hw); | |
f8ec4733 | 3308 | mdelay(5); |
6418ecc6 JK |
3309 | timeout--; |
3310 | } | |
3311 | ||
3312 | if (!timeout) { | |
3313 | DEBUGOUT("Driver can't access resource, SW_FW_SYNC timeout.\n"); | |
3314 | return -E1000_ERR_SWFW_SYNC; | |
3315 | } | |
3316 | ||
3317 | swfw_sync |= swmask; | |
3318 | E1000_WRITE_REG(hw, SW_FW_SYNC, swfw_sync); | |
3319 | ||
3320 | e1000_put_hw_eeprom_semaphore(hw); | |
3321 | return E1000_SUCCESS; | |
3322 | } | |
3323 | ||
e4c780b1 | 3324 | static void |
6418ecc6 JK |
3325 | e1000_swfw_sync_release(struct e1000_hw *hw, uint16_t mask) |
3326 | { | |
3327 | uint32_t swfw_sync; | |
3328 | uint32_t swmask = mask; | |
3329 | ||
3330 | DEBUGFUNC("e1000_swfw_sync_release"); | |
3331 | ||
cd94dd0b AK |
3332 | if (hw->swfwhw_semaphore_present) { |
3333 | e1000_release_software_flag(hw); | |
3334 | return; | |
3335 | } | |
3336 | ||
6418ecc6 JK |
3337 | if (!hw->swfw_sync_present) { |
3338 | e1000_put_hw_eeprom_semaphore(hw); | |
3339 | return; | |
3340 | } | |
3341 | ||
3342 | /* if (e1000_get_hw_eeprom_semaphore(hw)) | |
3343 | * return -E1000_ERR_SWFW_SYNC; */ | |
3344 | while (e1000_get_hw_eeprom_semaphore(hw) != E1000_SUCCESS); | |
3345 | /* empty */ | |
3346 | ||
3347 | swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC); | |
3348 | swfw_sync &= ~swmask; | |
3349 | E1000_WRITE_REG(hw, SW_FW_SYNC, swfw_sync); | |
3350 | ||
3351 | e1000_put_hw_eeprom_semaphore(hw); | |
3352 | } | |
3353 | ||
1da177e4 LT |
3354 | /***************************************************************************** |
3355 | * Reads the value from a PHY register, if the value is on a specific non zero | |
3356 | * page, sets the page first. | |
3357 | * hw - Struct containing variables accessed by shared code | |
3358 | * reg_addr - address of the PHY register to read | |
3359 | ******************************************************************************/ | |
3360 | int32_t | |
3361 | e1000_read_phy_reg(struct e1000_hw *hw, | |
3362 | uint32_t reg_addr, | |
3363 | uint16_t *phy_data) | |
3364 | { | |
3365 | uint32_t ret_val; | |
6418ecc6 | 3366 | uint16_t swfw; |
1da177e4 LT |
3367 | |
3368 | DEBUGFUNC("e1000_read_phy_reg"); | |
3369 | ||
6418ecc6 JK |
3370 | if ((hw->mac_type == e1000_80003es2lan) && |
3371 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3372 | swfw = E1000_SWFW_PHY1_SM; | |
3373 | } else { | |
3374 | swfw = E1000_SWFW_PHY0_SM; | |
3375 | } | |
3376 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3377 | return -E1000_ERR_SWFW_SYNC; | |
3378 | ||
cd94dd0b AK |
3379 | if ((hw->phy_type == e1000_phy_igp || |
3380 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 3381 | hw->phy_type == e1000_phy_igp_2) && |
1da177e4 LT |
3382 | (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { |
3383 | ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, | |
3384 | (uint16_t)reg_addr); | |
8fc897b0 | 3385 | if (ret_val) { |
6418ecc6 | 3386 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3387 | return ret_val; |
3388 | } | |
6418ecc6 JK |
3389 | } else if (hw->phy_type == e1000_phy_gg82563) { |
3390 | if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || | |
3391 | (hw->mac_type == e1000_80003es2lan)) { | |
3392 | /* Select Configuration Page */ | |
3393 | if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { | |
3394 | ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, | |
3395 | (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT)); | |
3396 | } else { | |
3397 | /* Use Alternative Page Select register to access | |
3398 | * registers 30 and 31 | |
3399 | */ | |
3400 | ret_val = e1000_write_phy_reg_ex(hw, | |
3401 | GG82563_PHY_PAGE_SELECT_ALT, | |
3402 | (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT)); | |
3403 | } | |
3404 | ||
3405 | if (ret_val) { | |
3406 | e1000_swfw_sync_release(hw, swfw); | |
3407 | return ret_val; | |
3408 | } | |
3409 | } | |
1da177e4 LT |
3410 | } |
3411 | ||
3412 | ret_val = e1000_read_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, | |
3413 | phy_data); | |
3414 | ||
6418ecc6 | 3415 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3416 | return ret_val; |
3417 | } | |
3418 | ||
3419 | int32_t | |
3420 | e1000_read_phy_reg_ex(struct e1000_hw *hw, | |
3421 | uint32_t reg_addr, | |
3422 | uint16_t *phy_data) | |
3423 | { | |
3424 | uint32_t i; | |
3425 | uint32_t mdic = 0; | |
3426 | const uint32_t phy_addr = 1; | |
3427 | ||
3428 | DEBUGFUNC("e1000_read_phy_reg_ex"); | |
3429 | ||
8fc897b0 | 3430 | if (reg_addr > MAX_PHY_REG_ADDRESS) { |
1da177e4 LT |
3431 | DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); |
3432 | return -E1000_ERR_PARAM; | |
3433 | } | |
3434 | ||
8fc897b0 | 3435 | if (hw->mac_type > e1000_82543) { |
1da177e4 LT |
3436 | /* Set up Op-code, Phy Address, and register address in the MDI |
3437 | * Control register. The MAC will take care of interfacing with the | |
3438 | * PHY to retrieve the desired data. | |
3439 | */ | |
3440 | mdic = ((reg_addr << E1000_MDIC_REG_SHIFT) | | |
3441 | (phy_addr << E1000_MDIC_PHY_SHIFT) | | |
3442 | (E1000_MDIC_OP_READ)); | |
3443 | ||
3444 | E1000_WRITE_REG(hw, MDIC, mdic); | |
3445 | ||
3446 | /* Poll the ready bit to see if the MDI read completed */ | |
8fc897b0 | 3447 | for (i = 0; i < 64; i++) { |
1da177e4 LT |
3448 | udelay(50); |
3449 | mdic = E1000_READ_REG(hw, MDIC); | |
8fc897b0 | 3450 | if (mdic & E1000_MDIC_READY) break; |
1da177e4 | 3451 | } |
8fc897b0 | 3452 | if (!(mdic & E1000_MDIC_READY)) { |
1da177e4 LT |
3453 | DEBUGOUT("MDI Read did not complete\n"); |
3454 | return -E1000_ERR_PHY; | |
3455 | } | |
8fc897b0 | 3456 | if (mdic & E1000_MDIC_ERROR) { |
1da177e4 LT |
3457 | DEBUGOUT("MDI Error\n"); |
3458 | return -E1000_ERR_PHY; | |
3459 | } | |
3460 | *phy_data = (uint16_t) mdic; | |
3461 | } else { | |
3462 | /* We must first send a preamble through the MDIO pin to signal the | |
3463 | * beginning of an MII instruction. This is done by sending 32 | |
3464 | * consecutive "1" bits. | |
3465 | */ | |
3466 | e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); | |
3467 | ||
3468 | /* Now combine the next few fields that are required for a read | |
3469 | * operation. We use this method instead of calling the | |
3470 | * e1000_shift_out_mdi_bits routine five different times. The format of | |
3471 | * a MII read instruction consists of a shift out of 14 bits and is | |
3472 | * defined as follows: | |
3473 | * <Preamble><SOF><Op Code><Phy Addr><Reg Addr> | |
3474 | * followed by a shift in of 18 bits. This first two bits shifted in | |
3475 | * are TurnAround bits used to avoid contention on the MDIO pin when a | |
3476 | * READ operation is performed. These two bits are thrown away | |
3477 | * followed by a shift in of 16 bits which contains the desired data. | |
3478 | */ | |
3479 | mdic = ((reg_addr) | (phy_addr << 5) | | |
3480 | (PHY_OP_READ << 10) | (PHY_SOF << 12)); | |
3481 | ||
3482 | e1000_shift_out_mdi_bits(hw, mdic, 14); | |
3483 | ||
3484 | /* Now that we've shifted out the read command to the MII, we need to | |
3485 | * "shift in" the 16-bit value (18 total bits) of the requested PHY | |
3486 | * register address. | |
3487 | */ | |
3488 | *phy_data = e1000_shift_in_mdi_bits(hw); | |
3489 | } | |
3490 | return E1000_SUCCESS; | |
3491 | } | |
3492 | ||
3493 | /****************************************************************************** | |
3494 | * Writes a value to a PHY register | |
3495 | * | |
3496 | * hw - Struct containing variables accessed by shared code | |
3497 | * reg_addr - address of the PHY register to write | |
3498 | * data - data to write to the PHY | |
3499 | ******************************************************************************/ | |
3500 | int32_t | |
3501 | e1000_write_phy_reg(struct e1000_hw *hw, | |
3502 | uint32_t reg_addr, | |
3503 | uint16_t phy_data) | |
3504 | { | |
3505 | uint32_t ret_val; | |
6418ecc6 | 3506 | uint16_t swfw; |
1da177e4 LT |
3507 | |
3508 | DEBUGFUNC("e1000_write_phy_reg"); | |
3509 | ||
6418ecc6 JK |
3510 | if ((hw->mac_type == e1000_80003es2lan) && |
3511 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3512 | swfw = E1000_SWFW_PHY1_SM; | |
3513 | } else { | |
3514 | swfw = E1000_SWFW_PHY0_SM; | |
3515 | } | |
3516 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3517 | return -E1000_ERR_SWFW_SYNC; | |
3518 | ||
cd94dd0b AK |
3519 | if ((hw->phy_type == e1000_phy_igp || |
3520 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 3521 | hw->phy_type == e1000_phy_igp_2) && |
1da177e4 LT |
3522 | (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { |
3523 | ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, | |
3524 | (uint16_t)reg_addr); | |
8fc897b0 | 3525 | if (ret_val) { |
6418ecc6 | 3526 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3527 | return ret_val; |
3528 | } | |
6418ecc6 JK |
3529 | } else if (hw->phy_type == e1000_phy_gg82563) { |
3530 | if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || | |
3531 | (hw->mac_type == e1000_80003es2lan)) { | |
3532 | /* Select Configuration Page */ | |
3533 | if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { | |
3534 | ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, | |
3535 | (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT)); | |
3536 | } else { | |
3537 | /* Use Alternative Page Select register to access | |
3538 | * registers 30 and 31 | |
3539 | */ | |
3540 | ret_val = e1000_write_phy_reg_ex(hw, | |
3541 | GG82563_PHY_PAGE_SELECT_ALT, | |
3542 | (uint16_t)((uint16_t)reg_addr >> GG82563_PAGE_SHIFT)); | |
3543 | } | |
3544 | ||
3545 | if (ret_val) { | |
3546 | e1000_swfw_sync_release(hw, swfw); | |
3547 | return ret_val; | |
3548 | } | |
3549 | } | |
1da177e4 LT |
3550 | } |
3551 | ||
3552 | ret_val = e1000_write_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, | |
3553 | phy_data); | |
3554 | ||
6418ecc6 | 3555 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3556 | return ret_val; |
3557 | } | |
3558 | ||
3559 | int32_t | |
3560 | e1000_write_phy_reg_ex(struct e1000_hw *hw, | |
3561 | uint32_t reg_addr, | |
3562 | uint16_t phy_data) | |
3563 | { | |
3564 | uint32_t i; | |
3565 | uint32_t mdic = 0; | |
3566 | const uint32_t phy_addr = 1; | |
3567 | ||
3568 | DEBUGFUNC("e1000_write_phy_reg_ex"); | |
3569 | ||
8fc897b0 | 3570 | if (reg_addr > MAX_PHY_REG_ADDRESS) { |
1da177e4 LT |
3571 | DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); |
3572 | return -E1000_ERR_PARAM; | |
3573 | } | |
3574 | ||
8fc897b0 | 3575 | if (hw->mac_type > e1000_82543) { |
1da177e4 LT |
3576 | /* Set up Op-code, Phy Address, register address, and data intended |
3577 | * for the PHY register in the MDI Control register. The MAC will take | |
3578 | * care of interfacing with the PHY to send the desired data. | |
3579 | */ | |
3580 | mdic = (((uint32_t) phy_data) | | |
3581 | (reg_addr << E1000_MDIC_REG_SHIFT) | | |
3582 | (phy_addr << E1000_MDIC_PHY_SHIFT) | | |
3583 | (E1000_MDIC_OP_WRITE)); | |
3584 | ||
3585 | E1000_WRITE_REG(hw, MDIC, mdic); | |
3586 | ||
3587 | /* Poll the ready bit to see if the MDI read completed */ | |
8fc897b0 | 3588 | for (i = 0; i < 641; i++) { |
1da177e4 LT |
3589 | udelay(5); |
3590 | mdic = E1000_READ_REG(hw, MDIC); | |
8fc897b0 | 3591 | if (mdic & E1000_MDIC_READY) break; |
1da177e4 | 3592 | } |
8fc897b0 | 3593 | if (!(mdic & E1000_MDIC_READY)) { |
1da177e4 LT |
3594 | DEBUGOUT("MDI Write did not complete\n"); |
3595 | return -E1000_ERR_PHY; | |
3596 | } | |
3597 | } else { | |
3598 | /* We'll need to use the SW defined pins to shift the write command | |
3599 | * out to the PHY. We first send a preamble to the PHY to signal the | |
3600 | * beginning of the MII instruction. This is done by sending 32 | |
3601 | * consecutive "1" bits. | |
3602 | */ | |
3603 | e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); | |
3604 | ||
3605 | /* Now combine the remaining required fields that will indicate a | |
3606 | * write operation. We use this method instead of calling the | |
3607 | * e1000_shift_out_mdi_bits routine for each field in the command. The | |
3608 | * format of a MII write instruction is as follows: | |
3609 | * <Preamble><SOF><Op Code><Phy Addr><Reg Addr><Turnaround><Data>. | |
3610 | */ | |
3611 | mdic = ((PHY_TURNAROUND) | (reg_addr << 2) | (phy_addr << 7) | | |
3612 | (PHY_OP_WRITE << 12) | (PHY_SOF << 14)); | |
3613 | mdic <<= 16; | |
3614 | mdic |= (uint32_t) phy_data; | |
3615 | ||
3616 | e1000_shift_out_mdi_bits(hw, mdic, 32); | |
3617 | } | |
3618 | ||
3619 | return E1000_SUCCESS; | |
3620 | } | |
3621 | ||
e4c780b1 | 3622 | static int32_t |
6418ecc6 JK |
3623 | e1000_read_kmrn_reg(struct e1000_hw *hw, |
3624 | uint32_t reg_addr, | |
3625 | uint16_t *data) | |
3626 | { | |
3627 | uint32_t reg_val; | |
3628 | uint16_t swfw; | |
3629 | DEBUGFUNC("e1000_read_kmrn_reg"); | |
3630 | ||
3631 | if ((hw->mac_type == e1000_80003es2lan) && | |
3632 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3633 | swfw = E1000_SWFW_PHY1_SM; | |
3634 | } else { | |
3635 | swfw = E1000_SWFW_PHY0_SM; | |
3636 | } | |
3637 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3638 | return -E1000_ERR_SWFW_SYNC; | |
3639 | ||
3640 | /* Write register address */ | |
3641 | reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & | |
3642 | E1000_KUMCTRLSTA_OFFSET) | | |
3643 | E1000_KUMCTRLSTA_REN; | |
3644 | E1000_WRITE_REG(hw, KUMCTRLSTA, reg_val); | |
3645 | udelay(2); | |
3646 | ||
3647 | /* Read the data returned */ | |
3648 | reg_val = E1000_READ_REG(hw, KUMCTRLSTA); | |
3649 | *data = (uint16_t)reg_val; | |
3650 | ||
3651 | e1000_swfw_sync_release(hw, swfw); | |
3652 | return E1000_SUCCESS; | |
3653 | } | |
3654 | ||
e4c780b1 | 3655 | static int32_t |
6418ecc6 JK |
3656 | e1000_write_kmrn_reg(struct e1000_hw *hw, |
3657 | uint32_t reg_addr, | |
3658 | uint16_t data) | |
3659 | { | |
3660 | uint32_t reg_val; | |
3661 | uint16_t swfw; | |
3662 | DEBUGFUNC("e1000_write_kmrn_reg"); | |
3663 | ||
3664 | if ((hw->mac_type == e1000_80003es2lan) && | |
3665 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3666 | swfw = E1000_SWFW_PHY1_SM; | |
3667 | } else { | |
3668 | swfw = E1000_SWFW_PHY0_SM; | |
3669 | } | |
3670 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3671 | return -E1000_ERR_SWFW_SYNC; | |
3672 | ||
3673 | reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & | |
3674 | E1000_KUMCTRLSTA_OFFSET) | data; | |
3675 | E1000_WRITE_REG(hw, KUMCTRLSTA, reg_val); | |
3676 | udelay(2); | |
3677 | ||
3678 | e1000_swfw_sync_release(hw, swfw); | |
3679 | return E1000_SUCCESS; | |
3680 | } | |
2d7edb92 | 3681 | |
1da177e4 LT |
3682 | /****************************************************************************** |
3683 | * Returns the PHY to the power-on reset state | |
3684 | * | |
3685 | * hw - Struct containing variables accessed by shared code | |
3686 | ******************************************************************************/ | |
2d7edb92 | 3687 | int32_t |
1da177e4 LT |
3688 | e1000_phy_hw_reset(struct e1000_hw *hw) |
3689 | { | |
3690 | uint32_t ctrl, ctrl_ext; | |
3691 | uint32_t led_ctrl; | |
2d7edb92 | 3692 | int32_t ret_val; |
6418ecc6 | 3693 | uint16_t swfw; |
1da177e4 LT |
3694 | |
3695 | DEBUGFUNC("e1000_phy_hw_reset"); | |
3696 | ||
2d7edb92 MC |
3697 | /* In the case of the phy reset being blocked, it's not an error, we |
3698 | * simply return success without performing the reset. */ | |
3699 | ret_val = e1000_check_phy_reset_block(hw); | |
3700 | if (ret_val) | |
3701 | return E1000_SUCCESS; | |
3702 | ||
1da177e4 LT |
3703 | DEBUGOUT("Resetting Phy...\n"); |
3704 | ||
8fc897b0 | 3705 | if (hw->mac_type > e1000_82543) { |
6418ecc6 JK |
3706 | if ((hw->mac_type == e1000_80003es2lan) && |
3707 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3708 | swfw = E1000_SWFW_PHY1_SM; | |
3709 | } else { | |
3710 | swfw = E1000_SWFW_PHY0_SM; | |
3711 | } | |
3712 | if (e1000_swfw_sync_acquire(hw, swfw)) { | |
3713 | e1000_release_software_semaphore(hw); | |
3714 | return -E1000_ERR_SWFW_SYNC; | |
3715 | } | |
1da177e4 LT |
3716 | /* Read the device control register and assert the E1000_CTRL_PHY_RST |
3717 | * bit. Then, take it out of reset. | |
76c224bc | 3718 | * For pre-e1000_82571 hardware, we delay for 10ms between the assert |
fd803241 | 3719 | * and deassert. For e1000_82571 hardware and later, we instead delay |
0f15a8fa | 3720 | * for 50us between and 10ms after the deassertion. |
1da177e4 LT |
3721 | */ |
3722 | ctrl = E1000_READ_REG(hw, CTRL); | |
3723 | E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PHY_RST); | |
3724 | E1000_WRITE_FLUSH(hw); | |
76c224bc AK |
3725 | |
3726 | if (hw->mac_type < e1000_82571) | |
f8ec4733 | 3727 | msleep(10); |
b55ccb35 JK |
3728 | else |
3729 | udelay(100); | |
76c224bc | 3730 | |
1da177e4 LT |
3731 | E1000_WRITE_REG(hw, CTRL, ctrl); |
3732 | E1000_WRITE_FLUSH(hw); | |
76c224bc | 3733 | |
fd803241 | 3734 | if (hw->mac_type >= e1000_82571) |
f8ec4733 | 3735 | mdelay(10); |
6418ecc6 | 3736 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3737 | } else { |
3738 | /* Read the Extended Device Control Register, assert the PHY_RESET_DIR | |
3739 | * bit to put the PHY into reset. Then, take it out of reset. | |
3740 | */ | |
3741 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
3742 | ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR; | |
3743 | ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA; | |
3744 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
3745 | E1000_WRITE_FLUSH(hw); | |
f8ec4733 | 3746 | msleep(10); |
1da177e4 LT |
3747 | ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA; |
3748 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
3749 | E1000_WRITE_FLUSH(hw); | |
3750 | } | |
3751 | udelay(150); | |
3752 | ||
8fc897b0 | 3753 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
1da177e4 LT |
3754 | /* Configure activity LED after PHY reset */ |
3755 | led_ctrl = E1000_READ_REG(hw, LEDCTL); | |
3756 | led_ctrl &= IGP_ACTIVITY_LED_MASK; | |
3757 | led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); | |
3758 | E1000_WRITE_REG(hw, LEDCTL, led_ctrl); | |
3759 | } | |
2d7edb92 MC |
3760 | |
3761 | /* Wait for FW to finish PHY configuration. */ | |
3762 | ret_val = e1000_get_phy_cfg_done(hw); | |
8fc897b0 AK |
3763 | if (ret_val != E1000_SUCCESS) |
3764 | return ret_val; | |
6418ecc6 | 3765 | e1000_release_software_semaphore(hw); |
2d7edb92 | 3766 | |
8fc897b0 AK |
3767 | if ((hw->mac_type == e1000_ich8lan) && (hw->phy_type == e1000_phy_igp_3)) |
3768 | ret_val = e1000_init_lcd_from_nvm(hw); | |
3769 | ||
2d7edb92 | 3770 | return ret_val; |
1da177e4 LT |
3771 | } |
3772 | ||
3773 | /****************************************************************************** | |
3774 | * Resets the PHY | |
3775 | * | |
3776 | * hw - Struct containing variables accessed by shared code | |
3777 | * | |
3778 | * Sets bit 15 of the MII Control regiser | |
3779 | ******************************************************************************/ | |
3780 | int32_t | |
3781 | e1000_phy_reset(struct e1000_hw *hw) | |
3782 | { | |
3783 | int32_t ret_val; | |
3784 | uint16_t phy_data; | |
3785 | ||
3786 | DEBUGFUNC("e1000_phy_reset"); | |
3787 | ||
2d7edb92 MC |
3788 | /* In the case of the phy reset being blocked, it's not an error, we |
3789 | * simply return success without performing the reset. */ | |
3790 | ret_val = e1000_check_phy_reset_block(hw); | |
3791 | if (ret_val) | |
3792 | return E1000_SUCCESS; | |
3793 | ||
3794 | switch (hw->mac_type) { | |
3795 | case e1000_82541_rev_2: | |
868d5309 MC |
3796 | case e1000_82571: |
3797 | case e1000_82572: | |
cd94dd0b | 3798 | case e1000_ich8lan: |
2d7edb92 | 3799 | ret_val = e1000_phy_hw_reset(hw); |
8fc897b0 | 3800 | if (ret_val) |
2d7edb92 | 3801 | return ret_val; |
cd94dd0b | 3802 | |
2d7edb92 MC |
3803 | break; |
3804 | default: | |
1da177e4 | 3805 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); |
8fc897b0 | 3806 | if (ret_val) |
1da177e4 LT |
3807 | return ret_val; |
3808 | ||
3809 | phy_data |= MII_CR_RESET; | |
3810 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); | |
8fc897b0 | 3811 | if (ret_val) |
1da177e4 LT |
3812 | return ret_val; |
3813 | ||
3814 | udelay(1); | |
2d7edb92 MC |
3815 | break; |
3816 | } | |
1da177e4 | 3817 | |
8fc897b0 | 3818 | if (hw->phy_type == e1000_phy_igp || hw->phy_type == e1000_phy_igp_2) |
1da177e4 LT |
3819 | e1000_phy_init_script(hw); |
3820 | ||
3821 | return E1000_SUCCESS; | |
3822 | } | |
3823 | ||
d37ea5d5 AK |
3824 | /****************************************************************************** |
3825 | * Work-around for 82566 power-down: on D3 entry- | |
3826 | * 1) disable gigabit link | |
3827 | * 2) write VR power-down enable | |
3828 | * 3) read it back | |
3829 | * if successful continue, else issue LCD reset and repeat | |
3830 | * | |
3831 | * hw - struct containing variables accessed by shared code | |
3832 | ******************************************************************************/ | |
3833 | void | |
3834 | e1000_phy_powerdown_workaround(struct e1000_hw *hw) | |
3835 | { | |
3836 | int32_t reg; | |
3837 | uint16_t phy_data; | |
3838 | int32_t retry = 0; | |
3839 | ||
3840 | DEBUGFUNC("e1000_phy_powerdown_workaround"); | |
3841 | ||
3842 | if (hw->phy_type != e1000_phy_igp_3) | |
3843 | return; | |
3844 | ||
3845 | do { | |
3846 | /* Disable link */ | |
3847 | reg = E1000_READ_REG(hw, PHY_CTRL); | |
3848 | E1000_WRITE_REG(hw, PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | | |
3849 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | |
3850 | ||
3851 | /* Write VR power-down enable */ | |
3852 | e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); | |
3853 | e1000_write_phy_reg(hw, IGP3_VR_CTRL, phy_data | | |
3854 | IGP3_VR_CTRL_MODE_SHUT); | |
3855 | ||
3856 | /* Read it back and test */ | |
3857 | e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); | |
3858 | if ((phy_data & IGP3_VR_CTRL_MODE_SHUT) || retry) | |
3859 | break; | |
3860 | ||
3861 | /* Issue PHY reset and repeat at most one more time */ | |
3862 | reg = E1000_READ_REG(hw, CTRL); | |
3863 | E1000_WRITE_REG(hw, CTRL, reg | E1000_CTRL_PHY_RST); | |
3864 | retry++; | |
3865 | } while (retry); | |
3866 | ||
3867 | return; | |
3868 | ||
3869 | } | |
3870 | ||
3871 | /****************************************************************************** | |
3872 | * Work-around for 82566 Kumeran PCS lock loss: | |
3873 | * On link status change (i.e. PCI reset, speed change) and link is up and | |
3874 | * speed is gigabit- | |
3875 | * 0) if workaround is optionally disabled do nothing | |
3876 | * 1) wait 1ms for Kumeran link to come up | |
3877 | * 2) check Kumeran Diagnostic register PCS lock loss bit | |
3878 | * 3) if not set the link is locked (all is good), otherwise... | |
3879 | * 4) reset the PHY | |
3880 | * 5) repeat up to 10 times | |
3881 | * Note: this is only called for IGP3 copper when speed is 1gb. | |
3882 | * | |
3883 | * hw - struct containing variables accessed by shared code | |
3884 | ******************************************************************************/ | |
e4c780b1 | 3885 | static int32_t |
d37ea5d5 AK |
3886 | e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw) |
3887 | { | |
3888 | int32_t ret_val; | |
3889 | int32_t reg; | |
3890 | int32_t cnt; | |
3891 | uint16_t phy_data; | |
3892 | ||
3893 | if (hw->kmrn_lock_loss_workaround_disabled) | |
3894 | return E1000_SUCCESS; | |
3895 | ||
8fc897b0 AK |
3896 | /* Make sure link is up before proceeding. If not just return. |
3897 | * Attempting this while link is negotiating fouled up link | |
d37ea5d5 AK |
3898 | * stability */ |
3899 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
3900 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
3901 | ||
3902 | if (phy_data & MII_SR_LINK_STATUS) { | |
3903 | for (cnt = 0; cnt < 10; cnt++) { | |
3904 | /* read once to clear */ | |
3905 | ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); | |
3906 | if (ret_val) | |
3907 | return ret_val; | |
3908 | /* and again to get new status */ | |
3909 | ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); | |
3910 | if (ret_val) | |
3911 | return ret_val; | |
3912 | ||
3913 | /* check for PCS lock */ | |
3914 | if (!(phy_data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS)) | |
3915 | return E1000_SUCCESS; | |
3916 | ||
3917 | /* Issue PHY reset */ | |
3918 | e1000_phy_hw_reset(hw); | |
f8ec4733 | 3919 | mdelay(5); |
d37ea5d5 AK |
3920 | } |
3921 | /* Disable GigE link negotiation */ | |
3922 | reg = E1000_READ_REG(hw, PHY_CTRL); | |
3923 | E1000_WRITE_REG(hw, PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | | |
3924 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | |
3925 | ||
3926 | /* unable to acquire PCS lock */ | |
3927 | return E1000_ERR_PHY; | |
3928 | } | |
3929 | ||
3930 | return E1000_SUCCESS; | |
3931 | } | |
3932 | ||
1da177e4 LT |
3933 | /****************************************************************************** |
3934 | * Probes the expected PHY address for known PHY IDs | |
3935 | * | |
3936 | * hw - Struct containing variables accessed by shared code | |
3937 | ******************************************************************************/ | |
d37ea5d5 | 3938 | int32_t |
1da177e4 LT |
3939 | e1000_detect_gig_phy(struct e1000_hw *hw) |
3940 | { | |
3941 | int32_t phy_init_status, ret_val; | |
3942 | uint16_t phy_id_high, phy_id_low; | |
3943 | boolean_t match = FALSE; | |
3944 | ||
3945 | DEBUGFUNC("e1000_detect_gig_phy"); | |
3946 | ||
868d5309 MC |
3947 | /* The 82571 firmware may still be configuring the PHY. In this |
3948 | * case, we cannot access the PHY until the configuration is done. So | |
3949 | * we explicitly set the PHY values. */ | |
cd94dd0b AK |
3950 | if (hw->mac_type == e1000_82571 || |
3951 | hw->mac_type == e1000_82572) { | |
868d5309 MC |
3952 | hw->phy_id = IGP01E1000_I_PHY_ID; |
3953 | hw->phy_type = e1000_phy_igp_2; | |
3954 | return E1000_SUCCESS; | |
3955 | } | |
3956 | ||
6418ecc6 JK |
3957 | /* ESB-2 PHY reads require e1000_phy_gg82563 to be set because of a work- |
3958 | * around that forces PHY page 0 to be set or the reads fail. The rest of | |
3959 | * the code in this routine uses e1000_read_phy_reg to read the PHY ID. | |
3960 | * So for ESB-2 we need to have this set so our reads won't fail. If the | |
3961 | * attached PHY is not a e1000_phy_gg82563, the routines below will figure | |
3962 | * this out as well. */ | |
3963 | if (hw->mac_type == e1000_80003es2lan) | |
3964 | hw->phy_type = e1000_phy_gg82563; | |
3965 | ||
1da177e4 LT |
3966 | /* Read the PHY ID Registers to identify which PHY is onboard. */ |
3967 | ret_val = e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high); | |
cd94dd0b | 3968 | if (ret_val) |
1da177e4 LT |
3969 | return ret_val; |
3970 | ||
3971 | hw->phy_id = (uint32_t) (phy_id_high << 16); | |
3972 | udelay(20); | |
3973 | ret_val = e1000_read_phy_reg(hw, PHY_ID2, &phy_id_low); | |
8fc897b0 | 3974 | if (ret_val) |
1da177e4 LT |
3975 | return ret_val; |
3976 | ||
3977 | hw->phy_id |= (uint32_t) (phy_id_low & PHY_REVISION_MASK); | |
3978 | hw->phy_revision = (uint32_t) phy_id_low & ~PHY_REVISION_MASK; | |
3979 | ||
8fc897b0 | 3980 | switch (hw->mac_type) { |
1da177e4 | 3981 | case e1000_82543: |
8fc897b0 | 3982 | if (hw->phy_id == M88E1000_E_PHY_ID) match = TRUE; |
1da177e4 LT |
3983 | break; |
3984 | case e1000_82544: | |
8fc897b0 | 3985 | if (hw->phy_id == M88E1000_I_PHY_ID) match = TRUE; |
1da177e4 LT |
3986 | break; |
3987 | case e1000_82540: | |
3988 | case e1000_82545: | |
3989 | case e1000_82545_rev_3: | |
3990 | case e1000_82546: | |
3991 | case e1000_82546_rev_3: | |
8fc897b0 | 3992 | if (hw->phy_id == M88E1011_I_PHY_ID) match = TRUE; |
1da177e4 LT |
3993 | break; |
3994 | case e1000_82541: | |
3995 | case e1000_82541_rev_2: | |
3996 | case e1000_82547: | |
3997 | case e1000_82547_rev_2: | |
8fc897b0 | 3998 | if (hw->phy_id == IGP01E1000_I_PHY_ID) match = TRUE; |
1da177e4 | 3999 | break; |
2d7edb92 | 4000 | case e1000_82573: |
8fc897b0 | 4001 | if (hw->phy_id == M88E1111_I_PHY_ID) match = TRUE; |
2d7edb92 | 4002 | break; |
6418ecc6 JK |
4003 | case e1000_80003es2lan: |
4004 | if (hw->phy_id == GG82563_E_PHY_ID) match = TRUE; | |
4005 | break; | |
cd94dd0b AK |
4006 | case e1000_ich8lan: |
4007 | if (hw->phy_id == IGP03E1000_E_PHY_ID) match = TRUE; | |
4008 | if (hw->phy_id == IFE_E_PHY_ID) match = TRUE; | |
4009 | if (hw->phy_id == IFE_PLUS_E_PHY_ID) match = TRUE; | |
4010 | if (hw->phy_id == IFE_C_E_PHY_ID) match = TRUE; | |
4011 | break; | |
1da177e4 LT |
4012 | default: |
4013 | DEBUGOUT1("Invalid MAC type %d\n", hw->mac_type); | |
4014 | return -E1000_ERR_CONFIG; | |
4015 | } | |
4016 | phy_init_status = e1000_set_phy_type(hw); | |
4017 | ||
4018 | if ((match) && (phy_init_status == E1000_SUCCESS)) { | |
4019 | DEBUGOUT1("PHY ID 0x%X detected\n", hw->phy_id); | |
4020 | return E1000_SUCCESS; | |
4021 | } | |
4022 | DEBUGOUT1("Invalid PHY ID 0x%X\n", hw->phy_id); | |
4023 | return -E1000_ERR_PHY; | |
4024 | } | |
4025 | ||
4026 | /****************************************************************************** | |
4027 | * Resets the PHY's DSP | |
4028 | * | |
4029 | * hw - Struct containing variables accessed by shared code | |
4030 | ******************************************************************************/ | |
4031 | static int32_t | |
4032 | e1000_phy_reset_dsp(struct e1000_hw *hw) | |
4033 | { | |
4034 | int32_t ret_val; | |
4035 | DEBUGFUNC("e1000_phy_reset_dsp"); | |
4036 | ||
4037 | do { | |
6418ecc6 JK |
4038 | if (hw->phy_type != e1000_phy_gg82563) { |
4039 | ret_val = e1000_write_phy_reg(hw, 29, 0x001d); | |
8fc897b0 | 4040 | if (ret_val) break; |
6418ecc6 | 4041 | } |
1da177e4 | 4042 | ret_val = e1000_write_phy_reg(hw, 30, 0x00c1); |
8fc897b0 | 4043 | if (ret_val) break; |
1da177e4 | 4044 | ret_val = e1000_write_phy_reg(hw, 30, 0x0000); |
8fc897b0 | 4045 | if (ret_val) break; |
1da177e4 | 4046 | ret_val = E1000_SUCCESS; |
8fc897b0 | 4047 | } while (0); |
1da177e4 LT |
4048 | |
4049 | return ret_val; | |
4050 | } | |
4051 | ||
4052 | /****************************************************************************** | |
4053 | * Get PHY information from various PHY registers for igp PHY only. | |
4054 | * | |
4055 | * hw - Struct containing variables accessed by shared code | |
4056 | * phy_info - PHY information structure | |
4057 | ******************************************************************************/ | |
cff93eb3 | 4058 | static int32_t |
1da177e4 LT |
4059 | e1000_phy_igp_get_info(struct e1000_hw *hw, |
4060 | struct e1000_phy_info *phy_info) | |
4061 | { | |
4062 | int32_t ret_val; | |
4063 | uint16_t phy_data, polarity, min_length, max_length, average; | |
4064 | ||
4065 | DEBUGFUNC("e1000_phy_igp_get_info"); | |
4066 | ||
4067 | /* The downshift status is checked only once, after link is established, | |
4068 | * and it stored in the hw->speed_downgraded parameter. */ | |
2d7edb92 | 4069 | phy_info->downshift = (e1000_downshift)hw->speed_downgraded; |
1da177e4 LT |
4070 | |
4071 | /* IGP01E1000 does not need to support it. */ | |
4072 | phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; | |
4073 | ||
4074 | /* IGP01E1000 always correct polarity reversal */ | |
4075 | phy_info->polarity_correction = e1000_polarity_reversal_enabled; | |
4076 | ||
4077 | /* Check polarity status */ | |
4078 | ret_val = e1000_check_polarity(hw, &polarity); | |
8fc897b0 | 4079 | if (ret_val) |
1da177e4 LT |
4080 | return ret_val; |
4081 | ||
4082 | phy_info->cable_polarity = polarity; | |
4083 | ||
4084 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, &phy_data); | |
8fc897b0 | 4085 | if (ret_val) |
1da177e4 LT |
4086 | return ret_val; |
4087 | ||
4088 | phy_info->mdix_mode = (phy_data & IGP01E1000_PSSR_MDIX) >> | |
4089 | IGP01E1000_PSSR_MDIX_SHIFT; | |
4090 | ||
8fc897b0 | 4091 | if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == |
1da177e4 LT |
4092 | IGP01E1000_PSSR_SPEED_1000MBPS) { |
4093 | /* Local/Remote Receiver Information are only valid at 1000 Mbps */ | |
4094 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); | |
8fc897b0 | 4095 | if (ret_val) |
1da177e4 LT |
4096 | return ret_val; |
4097 | ||
4098 | phy_info->local_rx = (phy_data & SR_1000T_LOCAL_RX_STATUS) >> | |
4099 | SR_1000T_LOCAL_RX_STATUS_SHIFT; | |
4100 | phy_info->remote_rx = (phy_data & SR_1000T_REMOTE_RX_STATUS) >> | |
4101 | SR_1000T_REMOTE_RX_STATUS_SHIFT; | |
4102 | ||
4103 | /* Get cable length */ | |
4104 | ret_val = e1000_get_cable_length(hw, &min_length, &max_length); | |
8fc897b0 | 4105 | if (ret_val) |
1da177e4 LT |
4106 | return ret_val; |
4107 | ||
2d7edb92 | 4108 | /* Translate to old method */ |
1da177e4 LT |
4109 | average = (max_length + min_length) / 2; |
4110 | ||
8fc897b0 | 4111 | if (average <= e1000_igp_cable_length_50) |
1da177e4 | 4112 | phy_info->cable_length = e1000_cable_length_50; |
8fc897b0 | 4113 | else if (average <= e1000_igp_cable_length_80) |
1da177e4 | 4114 | phy_info->cable_length = e1000_cable_length_50_80; |
8fc897b0 | 4115 | else if (average <= e1000_igp_cable_length_110) |
1da177e4 | 4116 | phy_info->cable_length = e1000_cable_length_80_110; |
8fc897b0 | 4117 | else if (average <= e1000_igp_cable_length_140) |
1da177e4 LT |
4118 | phy_info->cable_length = e1000_cable_length_110_140; |
4119 | else | |
4120 | phy_info->cable_length = e1000_cable_length_140; | |
4121 | } | |
4122 | ||
4123 | return E1000_SUCCESS; | |
4124 | } | |
4125 | ||
d37ea5d5 AK |
4126 | /****************************************************************************** |
4127 | * Get PHY information from various PHY registers for ife PHY only. | |
4128 | * | |
4129 | * hw - Struct containing variables accessed by shared code | |
4130 | * phy_info - PHY information structure | |
4131 | ******************************************************************************/ | |
e4c780b1 | 4132 | static int32_t |
d37ea5d5 AK |
4133 | e1000_phy_ife_get_info(struct e1000_hw *hw, |
4134 | struct e1000_phy_info *phy_info) | |
4135 | { | |
4136 | int32_t ret_val; | |
4137 | uint16_t phy_data, polarity; | |
4138 | ||
4139 | DEBUGFUNC("e1000_phy_ife_get_info"); | |
4140 | ||
4141 | phy_info->downshift = (e1000_downshift)hw->speed_downgraded; | |
4142 | phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; | |
4143 | ||
4144 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, &phy_data); | |
4145 | if (ret_val) | |
4146 | return ret_val; | |
4147 | phy_info->polarity_correction = | |
4148 | (phy_data & IFE_PSC_AUTO_POLARITY_DISABLE) >> | |
4149 | IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT; | |
4150 | ||
4151 | if (phy_info->polarity_correction == e1000_polarity_reversal_enabled) { | |
4152 | ret_val = e1000_check_polarity(hw, &polarity); | |
4153 | if (ret_val) | |
4154 | return ret_val; | |
4155 | } else { | |
4156 | /* Polarity is forced. */ | |
4157 | polarity = (phy_data & IFE_PSC_FORCE_POLARITY) >> | |
4158 | IFE_PSC_FORCE_POLARITY_SHIFT; | |
4159 | } | |
4160 | phy_info->cable_polarity = polarity; | |
4161 | ||
4162 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); | |
4163 | if (ret_val) | |
4164 | return ret_val; | |
4165 | ||
4166 | phy_info->mdix_mode = | |
4167 | (phy_data & (IFE_PMC_AUTO_MDIX | IFE_PMC_FORCE_MDIX)) >> | |
4168 | IFE_PMC_MDIX_MODE_SHIFT; | |
4169 | ||
4170 | return E1000_SUCCESS; | |
4171 | } | |
4172 | ||
1da177e4 LT |
4173 | /****************************************************************************** |
4174 | * Get PHY information from various PHY registers fot m88 PHY only. | |
4175 | * | |
4176 | * hw - Struct containing variables accessed by shared code | |
4177 | * phy_info - PHY information structure | |
4178 | ******************************************************************************/ | |
3ad2cc67 | 4179 | static int32_t |
1da177e4 LT |
4180 | e1000_phy_m88_get_info(struct e1000_hw *hw, |
4181 | struct e1000_phy_info *phy_info) | |
4182 | { | |
4183 | int32_t ret_val; | |
4184 | uint16_t phy_data, polarity; | |
4185 | ||
4186 | DEBUGFUNC("e1000_phy_m88_get_info"); | |
4187 | ||
4188 | /* The downshift status is checked only once, after link is established, | |
4189 | * and it stored in the hw->speed_downgraded parameter. */ | |
2d7edb92 | 4190 | phy_info->downshift = (e1000_downshift)hw->speed_downgraded; |
1da177e4 LT |
4191 | |
4192 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 4193 | if (ret_val) |
1da177e4 LT |
4194 | return ret_val; |
4195 | ||
4196 | phy_info->extended_10bt_distance = | |
4197 | (phy_data & M88E1000_PSCR_10BT_EXT_DIST_ENABLE) >> | |
4198 | M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT; | |
4199 | phy_info->polarity_correction = | |
4200 | (phy_data & M88E1000_PSCR_POLARITY_REVERSAL) >> | |
4201 | M88E1000_PSCR_POLARITY_REVERSAL_SHIFT; | |
4202 | ||
4203 | /* Check polarity status */ | |
4204 | ret_val = e1000_check_polarity(hw, &polarity); | |
8fc897b0 | 4205 | if (ret_val) |
76c224bc | 4206 | return ret_val; |
1da177e4 LT |
4207 | phy_info->cable_polarity = polarity; |
4208 | ||
4209 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); | |
8fc897b0 | 4210 | if (ret_val) |
1da177e4 LT |
4211 | return ret_val; |
4212 | ||
4213 | phy_info->mdix_mode = (phy_data & M88E1000_PSSR_MDIX) >> | |
4214 | M88E1000_PSSR_MDIX_SHIFT; | |
4215 | ||
4216 | if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) { | |
4217 | /* Cable Length Estimation and Local/Remote Receiver Information | |
4218 | * are only valid at 1000 Mbps. | |
4219 | */ | |
6418ecc6 JK |
4220 | if (hw->phy_type != e1000_phy_gg82563) { |
4221 | phy_info->cable_length = ((phy_data & M88E1000_PSSR_CABLE_LENGTH) >> | |
4222 | M88E1000_PSSR_CABLE_LENGTH_SHIFT); | |
4223 | } else { | |
4224 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, | |
4225 | &phy_data); | |
4226 | if (ret_val) | |
4227 | return ret_val; | |
4228 | ||
4229 | phy_info->cable_length = phy_data & GG82563_DSPD_CABLE_LENGTH; | |
4230 | } | |
1da177e4 LT |
4231 | |
4232 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); | |
8fc897b0 | 4233 | if (ret_val) |
1da177e4 LT |
4234 | return ret_val; |
4235 | ||
4236 | phy_info->local_rx = (phy_data & SR_1000T_LOCAL_RX_STATUS) >> | |
4237 | SR_1000T_LOCAL_RX_STATUS_SHIFT; | |
4238 | ||
4239 | phy_info->remote_rx = (phy_data & SR_1000T_REMOTE_RX_STATUS) >> | |
4240 | SR_1000T_REMOTE_RX_STATUS_SHIFT; | |
4241 | } | |
4242 | ||
4243 | return E1000_SUCCESS; | |
4244 | } | |
4245 | ||
4246 | /****************************************************************************** | |
4247 | * Get PHY information from various PHY registers | |
4248 | * | |
4249 | * hw - Struct containing variables accessed by shared code | |
4250 | * phy_info - PHY information structure | |
4251 | ******************************************************************************/ | |
4252 | int32_t | |
4253 | e1000_phy_get_info(struct e1000_hw *hw, | |
4254 | struct e1000_phy_info *phy_info) | |
4255 | { | |
4256 | int32_t ret_val; | |
4257 | uint16_t phy_data; | |
4258 | ||
4259 | DEBUGFUNC("e1000_phy_get_info"); | |
4260 | ||
4261 | phy_info->cable_length = e1000_cable_length_undefined; | |
4262 | phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_undefined; | |
4263 | phy_info->cable_polarity = e1000_rev_polarity_undefined; | |
4264 | phy_info->downshift = e1000_downshift_undefined; | |
4265 | phy_info->polarity_correction = e1000_polarity_reversal_undefined; | |
4266 | phy_info->mdix_mode = e1000_auto_x_mode_undefined; | |
4267 | phy_info->local_rx = e1000_1000t_rx_status_undefined; | |
4268 | phy_info->remote_rx = e1000_1000t_rx_status_undefined; | |
4269 | ||
8fc897b0 | 4270 | if (hw->media_type != e1000_media_type_copper) { |
1da177e4 LT |
4271 | DEBUGOUT("PHY info is only valid for copper media\n"); |
4272 | return -E1000_ERR_CONFIG; | |
4273 | } | |
4274 | ||
4275 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 4276 | if (ret_val) |
1da177e4 LT |
4277 | return ret_val; |
4278 | ||
4279 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 4280 | if (ret_val) |
1da177e4 LT |
4281 | return ret_val; |
4282 | ||
8fc897b0 | 4283 | if ((phy_data & MII_SR_LINK_STATUS) != MII_SR_LINK_STATUS) { |
1da177e4 LT |
4284 | DEBUGOUT("PHY info is only valid if link is up\n"); |
4285 | return -E1000_ERR_CONFIG; | |
4286 | } | |
4287 | ||
cd94dd0b AK |
4288 | if (hw->phy_type == e1000_phy_igp || |
4289 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 4290 | hw->phy_type == e1000_phy_igp_2) |
1da177e4 | 4291 | return e1000_phy_igp_get_info(hw, phy_info); |
cd94dd0b AK |
4292 | else if (hw->phy_type == e1000_phy_ife) |
4293 | return e1000_phy_ife_get_info(hw, phy_info); | |
1da177e4 LT |
4294 | else |
4295 | return e1000_phy_m88_get_info(hw, phy_info); | |
4296 | } | |
4297 | ||
4298 | int32_t | |
4299 | e1000_validate_mdi_setting(struct e1000_hw *hw) | |
4300 | { | |
4301 | DEBUGFUNC("e1000_validate_mdi_settings"); | |
4302 | ||
8fc897b0 | 4303 | if (!hw->autoneg && (hw->mdix == 0 || hw->mdix == 3)) { |
1da177e4 LT |
4304 | DEBUGOUT("Invalid MDI setting detected\n"); |
4305 | hw->mdix = 1; | |
4306 | return -E1000_ERR_CONFIG; | |
4307 | } | |
4308 | return E1000_SUCCESS; | |
4309 | } | |
4310 | ||
4311 | ||
4312 | /****************************************************************************** | |
4313 | * Sets up eeprom variables in the hw struct. Must be called after mac_type | |
0f15a8fa JK |
4314 | * is configured. Additionally, if this is ICH8, the flash controller GbE |
4315 | * registers must be mapped, or this will crash. | |
1da177e4 LT |
4316 | * |
4317 | * hw - Struct containing variables accessed by shared code | |
4318 | *****************************************************************************/ | |
2d7edb92 | 4319 | int32_t |
1da177e4 LT |
4320 | e1000_init_eeprom_params(struct e1000_hw *hw) |
4321 | { | |
4322 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4323 | uint32_t eecd = E1000_READ_REG(hw, EECD); | |
2d7edb92 | 4324 | int32_t ret_val = E1000_SUCCESS; |
1da177e4 LT |
4325 | uint16_t eeprom_size; |
4326 | ||
4327 | DEBUGFUNC("e1000_init_eeprom_params"); | |
4328 | ||
4329 | switch (hw->mac_type) { | |
4330 | case e1000_82542_rev2_0: | |
4331 | case e1000_82542_rev2_1: | |
4332 | case e1000_82543: | |
4333 | case e1000_82544: | |
4334 | eeprom->type = e1000_eeprom_microwire; | |
4335 | eeprom->word_size = 64; | |
4336 | eeprom->opcode_bits = 3; | |
4337 | eeprom->address_bits = 6; | |
4338 | eeprom->delay_usec = 50; | |
2d7edb92 MC |
4339 | eeprom->use_eerd = FALSE; |
4340 | eeprom->use_eewr = FALSE; | |
1da177e4 LT |
4341 | break; |
4342 | case e1000_82540: | |
4343 | case e1000_82545: | |
4344 | case e1000_82545_rev_3: | |
4345 | case e1000_82546: | |
4346 | case e1000_82546_rev_3: | |
4347 | eeprom->type = e1000_eeprom_microwire; | |
4348 | eeprom->opcode_bits = 3; | |
4349 | eeprom->delay_usec = 50; | |
8fc897b0 | 4350 | if (eecd & E1000_EECD_SIZE) { |
1da177e4 LT |
4351 | eeprom->word_size = 256; |
4352 | eeprom->address_bits = 8; | |
4353 | } else { | |
4354 | eeprom->word_size = 64; | |
4355 | eeprom->address_bits = 6; | |
4356 | } | |
2d7edb92 MC |
4357 | eeprom->use_eerd = FALSE; |
4358 | eeprom->use_eewr = FALSE; | |
1da177e4 LT |
4359 | break; |
4360 | case e1000_82541: | |
4361 | case e1000_82541_rev_2: | |
4362 | case e1000_82547: | |
4363 | case e1000_82547_rev_2: | |
4364 | if (eecd & E1000_EECD_TYPE) { | |
4365 | eeprom->type = e1000_eeprom_spi; | |
4366 | eeprom->opcode_bits = 8; | |
4367 | eeprom->delay_usec = 1; | |
4368 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4369 | eeprom->page_size = 32; | |
4370 | eeprom->address_bits = 16; | |
4371 | } else { | |
4372 | eeprom->page_size = 8; | |
4373 | eeprom->address_bits = 8; | |
4374 | } | |
4375 | } else { | |
4376 | eeprom->type = e1000_eeprom_microwire; | |
4377 | eeprom->opcode_bits = 3; | |
4378 | eeprom->delay_usec = 50; | |
4379 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4380 | eeprom->word_size = 256; | |
4381 | eeprom->address_bits = 8; | |
4382 | } else { | |
4383 | eeprom->word_size = 64; | |
4384 | eeprom->address_bits = 6; | |
4385 | } | |
4386 | } | |
2d7edb92 MC |
4387 | eeprom->use_eerd = FALSE; |
4388 | eeprom->use_eewr = FALSE; | |
4389 | break; | |
868d5309 MC |
4390 | case e1000_82571: |
4391 | case e1000_82572: | |
4392 | eeprom->type = e1000_eeprom_spi; | |
4393 | eeprom->opcode_bits = 8; | |
4394 | eeprom->delay_usec = 1; | |
4395 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4396 | eeprom->page_size = 32; | |
4397 | eeprom->address_bits = 16; | |
4398 | } else { | |
4399 | eeprom->page_size = 8; | |
4400 | eeprom->address_bits = 8; | |
4401 | } | |
4402 | eeprom->use_eerd = FALSE; | |
4403 | eeprom->use_eewr = FALSE; | |
4404 | break; | |
2d7edb92 MC |
4405 | case e1000_82573: |
4406 | eeprom->type = e1000_eeprom_spi; | |
4407 | eeprom->opcode_bits = 8; | |
4408 | eeprom->delay_usec = 1; | |
4409 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4410 | eeprom->page_size = 32; | |
4411 | eeprom->address_bits = 16; | |
4412 | } else { | |
4413 | eeprom->page_size = 8; | |
4414 | eeprom->address_bits = 8; | |
4415 | } | |
4416 | eeprom->use_eerd = TRUE; | |
4417 | eeprom->use_eewr = TRUE; | |
8fc897b0 | 4418 | if (e1000_is_onboard_nvm_eeprom(hw) == FALSE) { |
2d7edb92 MC |
4419 | eeprom->type = e1000_eeprom_flash; |
4420 | eeprom->word_size = 2048; | |
4421 | ||
4422 | /* Ensure that the Autonomous FLASH update bit is cleared due to | |
4423 | * Flash update issue on parts which use a FLASH for NVM. */ | |
4424 | eecd &= ~E1000_EECD_AUPDEN; | |
4425 | E1000_WRITE_REG(hw, EECD, eecd); | |
4426 | } | |
1da177e4 | 4427 | break; |
6418ecc6 JK |
4428 | case e1000_80003es2lan: |
4429 | eeprom->type = e1000_eeprom_spi; | |
4430 | eeprom->opcode_bits = 8; | |
4431 | eeprom->delay_usec = 1; | |
4432 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4433 | eeprom->page_size = 32; | |
4434 | eeprom->address_bits = 16; | |
4435 | } else { | |
4436 | eeprom->page_size = 8; | |
4437 | eeprom->address_bits = 8; | |
4438 | } | |
4439 | eeprom->use_eerd = TRUE; | |
4440 | eeprom->use_eewr = FALSE; | |
4441 | break; | |
cd94dd0b AK |
4442 | case e1000_ich8lan: |
4443 | { | |
4444 | int32_t i = 0; | |
4445 | uint32_t flash_size = E1000_READ_ICH8_REG(hw, ICH8_FLASH_GFPREG); | |
4446 | ||
4447 | eeprom->type = e1000_eeprom_ich8; | |
4448 | eeprom->use_eerd = FALSE; | |
4449 | eeprom->use_eewr = FALSE; | |
4450 | eeprom->word_size = E1000_SHADOW_RAM_WORDS; | |
4451 | ||
4452 | /* Zero the shadow RAM structure. But don't load it from NVM | |
4453 | * so as to save time for driver init */ | |
4454 | if (hw->eeprom_shadow_ram != NULL) { | |
4455 | for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { | |
4456 | hw->eeprom_shadow_ram[i].modified = FALSE; | |
4457 | hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; | |
4458 | } | |
4459 | } | |
4460 | ||
4461 | hw->flash_base_addr = (flash_size & ICH8_GFPREG_BASE_MASK) * | |
4462 | ICH8_FLASH_SECTOR_SIZE; | |
4463 | ||
4464 | hw->flash_bank_size = ((flash_size >> 16) & ICH8_GFPREG_BASE_MASK) + 1; | |
4465 | hw->flash_bank_size -= (flash_size & ICH8_GFPREG_BASE_MASK); | |
4466 | hw->flash_bank_size *= ICH8_FLASH_SECTOR_SIZE; | |
4467 | hw->flash_bank_size /= 2 * sizeof(uint16_t); | |
4468 | ||
4469 | break; | |
4470 | } | |
1da177e4 LT |
4471 | default: |
4472 | break; | |
4473 | } | |
4474 | ||
4475 | if (eeprom->type == e1000_eeprom_spi) { | |
2d7edb92 MC |
4476 | /* eeprom_size will be an enum [0..8] that maps to eeprom sizes 128B to |
4477 | * 32KB (incremented by powers of 2). | |
4478 | */ | |
8fc897b0 | 4479 | if (hw->mac_type <= e1000_82547_rev_2) { |
2d7edb92 MC |
4480 | /* Set to default value for initial eeprom read. */ |
4481 | eeprom->word_size = 64; | |
4482 | ret_val = e1000_read_eeprom(hw, EEPROM_CFG, 1, &eeprom_size); | |
8fc897b0 | 4483 | if (ret_val) |
2d7edb92 MC |
4484 | return ret_val; |
4485 | eeprom_size = (eeprom_size & EEPROM_SIZE_MASK) >> EEPROM_SIZE_SHIFT; | |
4486 | /* 256B eeprom size was not supported in earlier hardware, so we | |
4487 | * bump eeprom_size up one to ensure that "1" (which maps to 256B) | |
4488 | * is never the result used in the shifting logic below. */ | |
8fc897b0 | 4489 | if (eeprom_size) |
2d7edb92 MC |
4490 | eeprom_size++; |
4491 | } else { | |
4492 | eeprom_size = (uint16_t)((eecd & E1000_EECD_SIZE_EX_MASK) >> | |
4493 | E1000_EECD_SIZE_EX_SHIFT); | |
1da177e4 | 4494 | } |
2d7edb92 MC |
4495 | |
4496 | eeprom->word_size = 1 << (eeprom_size + EEPROM_WORD_SIZE_SHIFT); | |
1da177e4 | 4497 | } |
2d7edb92 | 4498 | return ret_val; |
1da177e4 LT |
4499 | } |
4500 | ||
4501 | /****************************************************************************** | |
4502 | * Raises the EEPROM's clock input. | |
4503 | * | |
4504 | * hw - Struct containing variables accessed by shared code | |
4505 | * eecd - EECD's current value | |
4506 | *****************************************************************************/ | |
4507 | static void | |
4508 | e1000_raise_ee_clk(struct e1000_hw *hw, | |
4509 | uint32_t *eecd) | |
4510 | { | |
4511 | /* Raise the clock input to the EEPROM (by setting the SK bit), and then | |
4512 | * wait <delay> microseconds. | |
4513 | */ | |
4514 | *eecd = *eecd | E1000_EECD_SK; | |
4515 | E1000_WRITE_REG(hw, EECD, *eecd); | |
4516 | E1000_WRITE_FLUSH(hw); | |
4517 | udelay(hw->eeprom.delay_usec); | |
4518 | } | |
4519 | ||
4520 | /****************************************************************************** | |
4521 | * Lowers the EEPROM's clock input. | |
4522 | * | |
4523 | * hw - Struct containing variables accessed by shared code | |
4524 | * eecd - EECD's current value | |
4525 | *****************************************************************************/ | |
4526 | static void | |
4527 | e1000_lower_ee_clk(struct e1000_hw *hw, | |
4528 | uint32_t *eecd) | |
4529 | { | |
4530 | /* Lower the clock input to the EEPROM (by clearing the SK bit), and then | |
4531 | * wait 50 microseconds. | |
4532 | */ | |
4533 | *eecd = *eecd & ~E1000_EECD_SK; | |
4534 | E1000_WRITE_REG(hw, EECD, *eecd); | |
4535 | E1000_WRITE_FLUSH(hw); | |
4536 | udelay(hw->eeprom.delay_usec); | |
4537 | } | |
4538 | ||
4539 | /****************************************************************************** | |
4540 | * Shift data bits out to the EEPROM. | |
4541 | * | |
4542 | * hw - Struct containing variables accessed by shared code | |
4543 | * data - data to send to the EEPROM | |
4544 | * count - number of bits to shift out | |
4545 | *****************************************************************************/ | |
4546 | static void | |
4547 | e1000_shift_out_ee_bits(struct e1000_hw *hw, | |
4548 | uint16_t data, | |
4549 | uint16_t count) | |
4550 | { | |
4551 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4552 | uint32_t eecd; | |
4553 | uint32_t mask; | |
4554 | ||
4555 | /* We need to shift "count" bits out to the EEPROM. So, value in the | |
4556 | * "data" parameter will be shifted out to the EEPROM one bit at a time. | |
4557 | * In order to do this, "data" must be broken down into bits. | |
4558 | */ | |
4559 | mask = 0x01 << (count - 1); | |
4560 | eecd = E1000_READ_REG(hw, EECD); | |
4561 | if (eeprom->type == e1000_eeprom_microwire) { | |
4562 | eecd &= ~E1000_EECD_DO; | |
4563 | } else if (eeprom->type == e1000_eeprom_spi) { | |
4564 | eecd |= E1000_EECD_DO; | |
4565 | } | |
4566 | do { | |
4567 | /* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1", | |
4568 | * and then raising and then lowering the clock (the SK bit controls | |
4569 | * the clock input to the EEPROM). A "0" is shifted out to the EEPROM | |
4570 | * by setting "DI" to "0" and then raising and then lowering the clock. | |
4571 | */ | |
4572 | eecd &= ~E1000_EECD_DI; | |
4573 | ||
8fc897b0 | 4574 | if (data & mask) |
1da177e4 LT |
4575 | eecd |= E1000_EECD_DI; |
4576 | ||
4577 | E1000_WRITE_REG(hw, EECD, eecd); | |
4578 | E1000_WRITE_FLUSH(hw); | |
4579 | ||
4580 | udelay(eeprom->delay_usec); | |
4581 | ||
4582 | e1000_raise_ee_clk(hw, &eecd); | |
4583 | e1000_lower_ee_clk(hw, &eecd); | |
4584 | ||
4585 | mask = mask >> 1; | |
4586 | ||
8fc897b0 | 4587 | } while (mask); |
1da177e4 LT |
4588 | |
4589 | /* We leave the "DI" bit set to "0" when we leave this routine. */ | |
4590 | eecd &= ~E1000_EECD_DI; | |
4591 | E1000_WRITE_REG(hw, EECD, eecd); | |
4592 | } | |
4593 | ||
4594 | /****************************************************************************** | |
4595 | * Shift data bits in from the EEPROM | |
4596 | * | |
4597 | * hw - Struct containing variables accessed by shared code | |
4598 | *****************************************************************************/ | |
4599 | static uint16_t | |
4600 | e1000_shift_in_ee_bits(struct e1000_hw *hw, | |
4601 | uint16_t count) | |
4602 | { | |
4603 | uint32_t eecd; | |
4604 | uint32_t i; | |
4605 | uint16_t data; | |
4606 | ||
4607 | /* In order to read a register from the EEPROM, we need to shift 'count' | |
4608 | * bits in from the EEPROM. Bits are "shifted in" by raising the clock | |
4609 | * input to the EEPROM (setting the SK bit), and then reading the value of | |
4610 | * the "DO" bit. During this "shifting in" process the "DI" bit should | |
4611 | * always be clear. | |
4612 | */ | |
4613 | ||
4614 | eecd = E1000_READ_REG(hw, EECD); | |
4615 | ||
4616 | eecd &= ~(E1000_EECD_DO | E1000_EECD_DI); | |
4617 | data = 0; | |
4618 | ||
8fc897b0 | 4619 | for (i = 0; i < count; i++) { |
1da177e4 LT |
4620 | data = data << 1; |
4621 | e1000_raise_ee_clk(hw, &eecd); | |
4622 | ||
4623 | eecd = E1000_READ_REG(hw, EECD); | |
4624 | ||
4625 | eecd &= ~(E1000_EECD_DI); | |
8fc897b0 | 4626 | if (eecd & E1000_EECD_DO) |
1da177e4 LT |
4627 | data |= 1; |
4628 | ||
4629 | e1000_lower_ee_clk(hw, &eecd); | |
4630 | } | |
4631 | ||
4632 | return data; | |
4633 | } | |
4634 | ||
4635 | /****************************************************************************** | |
4636 | * Prepares EEPROM for access | |
4637 | * | |
4638 | * hw - Struct containing variables accessed by shared code | |
4639 | * | |
4640 | * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This | |
4641 | * function should be called before issuing a command to the EEPROM. | |
4642 | *****************************************************************************/ | |
4643 | static int32_t | |
4644 | e1000_acquire_eeprom(struct e1000_hw *hw) | |
4645 | { | |
4646 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4647 | uint32_t eecd, i=0; | |
4648 | ||
4649 | DEBUGFUNC("e1000_acquire_eeprom"); | |
4650 | ||
6418ecc6 JK |
4651 | if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) |
4652 | return -E1000_ERR_SWFW_SYNC; | |
1da177e4 LT |
4653 | eecd = E1000_READ_REG(hw, EECD); |
4654 | ||
2d7edb92 | 4655 | if (hw->mac_type != e1000_82573) { |
868d5309 | 4656 | /* Request EEPROM Access */ |
8fc897b0 | 4657 | if (hw->mac_type > e1000_82544) { |
868d5309 | 4658 | eecd |= E1000_EECD_REQ; |
1da177e4 | 4659 | E1000_WRITE_REG(hw, EECD, eecd); |
868d5309 | 4660 | eecd = E1000_READ_REG(hw, EECD); |
8fc897b0 | 4661 | while ((!(eecd & E1000_EECD_GNT)) && |
868d5309 MC |
4662 | (i < E1000_EEPROM_GRANT_ATTEMPTS)) { |
4663 | i++; | |
4664 | udelay(5); | |
4665 | eecd = E1000_READ_REG(hw, EECD); | |
4666 | } | |
8fc897b0 | 4667 | if (!(eecd & E1000_EECD_GNT)) { |
868d5309 MC |
4668 | eecd &= ~E1000_EECD_REQ; |
4669 | E1000_WRITE_REG(hw, EECD, eecd); | |
4670 | DEBUGOUT("Could not acquire EEPROM grant\n"); | |
6418ecc6 | 4671 | e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); |
868d5309 MC |
4672 | return -E1000_ERR_EEPROM; |
4673 | } | |
1da177e4 LT |
4674 | } |
4675 | } | |
4676 | ||
4677 | /* Setup EEPROM for Read/Write */ | |
4678 | ||
4679 | if (eeprom->type == e1000_eeprom_microwire) { | |
4680 | /* Clear SK and DI */ | |
4681 | eecd &= ~(E1000_EECD_DI | E1000_EECD_SK); | |
4682 | E1000_WRITE_REG(hw, EECD, eecd); | |
4683 | ||
4684 | /* Set CS */ | |
4685 | eecd |= E1000_EECD_CS; | |
4686 | E1000_WRITE_REG(hw, EECD, eecd); | |
4687 | } else if (eeprom->type == e1000_eeprom_spi) { | |
4688 | /* Clear SK and CS */ | |
4689 | eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); | |
4690 | E1000_WRITE_REG(hw, EECD, eecd); | |
4691 | udelay(1); | |
4692 | } | |
4693 | ||
4694 | return E1000_SUCCESS; | |
4695 | } | |
4696 | ||
4697 | /****************************************************************************** | |
4698 | * Returns EEPROM to a "standby" state | |
4699 | * | |
4700 | * hw - Struct containing variables accessed by shared code | |
4701 | *****************************************************************************/ | |
4702 | static void | |
4703 | e1000_standby_eeprom(struct e1000_hw *hw) | |
4704 | { | |
4705 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4706 | uint32_t eecd; | |
4707 | ||
4708 | eecd = E1000_READ_REG(hw, EECD); | |
4709 | ||
8fc897b0 | 4710 | if (eeprom->type == e1000_eeprom_microwire) { |
1da177e4 LT |
4711 | eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); |
4712 | E1000_WRITE_REG(hw, EECD, eecd); | |
4713 | E1000_WRITE_FLUSH(hw); | |
4714 | udelay(eeprom->delay_usec); | |
4715 | ||
4716 | /* Clock high */ | |
4717 | eecd |= E1000_EECD_SK; | |
4718 | E1000_WRITE_REG(hw, EECD, eecd); | |
4719 | E1000_WRITE_FLUSH(hw); | |
4720 | udelay(eeprom->delay_usec); | |
4721 | ||
4722 | /* Select EEPROM */ | |
4723 | eecd |= E1000_EECD_CS; | |
4724 | E1000_WRITE_REG(hw, EECD, eecd); | |
4725 | E1000_WRITE_FLUSH(hw); | |
4726 | udelay(eeprom->delay_usec); | |
4727 | ||
4728 | /* Clock low */ | |
4729 | eecd &= ~E1000_EECD_SK; | |
4730 | E1000_WRITE_REG(hw, EECD, eecd); | |
4731 | E1000_WRITE_FLUSH(hw); | |
4732 | udelay(eeprom->delay_usec); | |
8fc897b0 | 4733 | } else if (eeprom->type == e1000_eeprom_spi) { |
1da177e4 LT |
4734 | /* Toggle CS to flush commands */ |
4735 | eecd |= E1000_EECD_CS; | |
4736 | E1000_WRITE_REG(hw, EECD, eecd); | |
4737 | E1000_WRITE_FLUSH(hw); | |
4738 | udelay(eeprom->delay_usec); | |
4739 | eecd &= ~E1000_EECD_CS; | |
4740 | E1000_WRITE_REG(hw, EECD, eecd); | |
4741 | E1000_WRITE_FLUSH(hw); | |
4742 | udelay(eeprom->delay_usec); | |
4743 | } | |
4744 | } | |
4745 | ||
4746 | /****************************************************************************** | |
4747 | * Terminates a command by inverting the EEPROM's chip select pin | |
4748 | * | |
4749 | * hw - Struct containing variables accessed by shared code | |
4750 | *****************************************************************************/ | |
4751 | static void | |
4752 | e1000_release_eeprom(struct e1000_hw *hw) | |
4753 | { | |
4754 | uint32_t eecd; | |
4755 | ||
4756 | DEBUGFUNC("e1000_release_eeprom"); | |
4757 | ||
4758 | eecd = E1000_READ_REG(hw, EECD); | |
4759 | ||
4760 | if (hw->eeprom.type == e1000_eeprom_spi) { | |
4761 | eecd |= E1000_EECD_CS; /* Pull CS high */ | |
4762 | eecd &= ~E1000_EECD_SK; /* Lower SCK */ | |
4763 | ||
4764 | E1000_WRITE_REG(hw, EECD, eecd); | |
4765 | ||
4766 | udelay(hw->eeprom.delay_usec); | |
8fc897b0 | 4767 | } else if (hw->eeprom.type == e1000_eeprom_microwire) { |
1da177e4 LT |
4768 | /* cleanup eeprom */ |
4769 | ||
4770 | /* CS on Microwire is active-high */ | |
4771 | eecd &= ~(E1000_EECD_CS | E1000_EECD_DI); | |
4772 | ||
4773 | E1000_WRITE_REG(hw, EECD, eecd); | |
4774 | ||
4775 | /* Rising edge of clock */ | |
4776 | eecd |= E1000_EECD_SK; | |
4777 | E1000_WRITE_REG(hw, EECD, eecd); | |
4778 | E1000_WRITE_FLUSH(hw); | |
4779 | udelay(hw->eeprom.delay_usec); | |
4780 | ||
4781 | /* Falling edge of clock */ | |
4782 | eecd &= ~E1000_EECD_SK; | |
4783 | E1000_WRITE_REG(hw, EECD, eecd); | |
4784 | E1000_WRITE_FLUSH(hw); | |
4785 | udelay(hw->eeprom.delay_usec); | |
4786 | } | |
4787 | ||
4788 | /* Stop requesting EEPROM access */ | |
8fc897b0 | 4789 | if (hw->mac_type > e1000_82544) { |
1da177e4 LT |
4790 | eecd &= ~E1000_EECD_REQ; |
4791 | E1000_WRITE_REG(hw, EECD, eecd); | |
4792 | } | |
2d7edb92 | 4793 | |
6418ecc6 | 4794 | e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); |
1da177e4 LT |
4795 | } |
4796 | ||
4797 | /****************************************************************************** | |
4798 | * Reads a 16 bit word from the EEPROM. | |
4799 | * | |
4800 | * hw - Struct containing variables accessed by shared code | |
4801 | *****************************************************************************/ | |
4802 | int32_t | |
4803 | e1000_spi_eeprom_ready(struct e1000_hw *hw) | |
4804 | { | |
4805 | uint16_t retry_count = 0; | |
4806 | uint8_t spi_stat_reg; | |
4807 | ||
4808 | DEBUGFUNC("e1000_spi_eeprom_ready"); | |
4809 | ||
4810 | /* Read "Status Register" repeatedly until the LSB is cleared. The | |
4811 | * EEPROM will signal that the command has been completed by clearing | |
4812 | * bit 0 of the internal status register. If it's not cleared within | |
4813 | * 5 milliseconds, then error out. | |
4814 | */ | |
4815 | retry_count = 0; | |
4816 | do { | |
4817 | e1000_shift_out_ee_bits(hw, EEPROM_RDSR_OPCODE_SPI, | |
4818 | hw->eeprom.opcode_bits); | |
4819 | spi_stat_reg = (uint8_t)e1000_shift_in_ee_bits(hw, 8); | |
4820 | if (!(spi_stat_reg & EEPROM_STATUS_RDY_SPI)) | |
4821 | break; | |
4822 | ||
4823 | udelay(5); | |
4824 | retry_count += 5; | |
4825 | ||
4826 | e1000_standby_eeprom(hw); | |
8fc897b0 | 4827 | } while (retry_count < EEPROM_MAX_RETRY_SPI); |
1da177e4 LT |
4828 | |
4829 | /* ATMEL SPI write time could vary from 0-20mSec on 3.3V devices (and | |
4830 | * only 0-5mSec on 5V devices) | |
4831 | */ | |
8fc897b0 | 4832 | if (retry_count >= EEPROM_MAX_RETRY_SPI) { |
1da177e4 LT |
4833 | DEBUGOUT("SPI EEPROM Status error\n"); |
4834 | return -E1000_ERR_EEPROM; | |
4835 | } | |
4836 | ||
4837 | return E1000_SUCCESS; | |
4838 | } | |
4839 | ||
4840 | /****************************************************************************** | |
4841 | * Reads a 16 bit word from the EEPROM. | |
4842 | * | |
4843 | * hw - Struct containing variables accessed by shared code | |
4844 | * offset - offset of word in the EEPROM to read | |
4845 | * data - word read from the EEPROM | |
4846 | * words - number of words to read | |
4847 | *****************************************************************************/ | |
4848 | int32_t | |
4849 | e1000_read_eeprom(struct e1000_hw *hw, | |
4850 | uint16_t offset, | |
4851 | uint16_t words, | |
4852 | uint16_t *data) | |
4853 | { | |
4854 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
4855 | uint32_t i = 0; | |
2d7edb92 | 4856 | int32_t ret_val; |
1da177e4 LT |
4857 | |
4858 | DEBUGFUNC("e1000_read_eeprom"); | |
2d7edb92 | 4859 | |
1da177e4 LT |
4860 | /* A check for invalid values: offset too large, too many words, and not |
4861 | * enough words. | |
4862 | */ | |
8fc897b0 | 4863 | if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || |
1da177e4 LT |
4864 | (words == 0)) { |
4865 | DEBUGOUT("\"words\" parameter out of bounds\n"); | |
4866 | return -E1000_ERR_EEPROM; | |
4867 | } | |
4868 | ||
4d351858 JK |
4869 | /* FLASH reads without acquiring the semaphore are safe */ |
4870 | if (e1000_is_onboard_nvm_eeprom(hw) == TRUE && | |
8fc897b0 | 4871 | hw->eeprom.use_eerd == FALSE) { |
4d351858 | 4872 | switch (hw->mac_type) { |
6418ecc6 JK |
4873 | case e1000_80003es2lan: |
4874 | break; | |
4d351858 JK |
4875 | default: |
4876 | /* Prepare the EEPROM for reading */ | |
4877 | if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) | |
4878 | return -E1000_ERR_EEPROM; | |
4879 | break; | |
4880 | } | |
2d7edb92 MC |
4881 | } |
4882 | ||
96838a40 | 4883 | if (eeprom->use_eerd == TRUE) { |
2d7edb92 MC |
4884 | ret_val = e1000_read_eeprom_eerd(hw, offset, words, data); |
4885 | if ((e1000_is_onboard_nvm_eeprom(hw) == TRUE) || | |
4886 | (hw->mac_type != e1000_82573)) | |
4887 | e1000_release_eeprom(hw); | |
4888 | return ret_val; | |
4889 | } | |
1da177e4 | 4890 | |
cd94dd0b AK |
4891 | if (eeprom->type == e1000_eeprom_ich8) |
4892 | return e1000_read_eeprom_ich8(hw, offset, words, data); | |
4893 | ||
4894 | if (eeprom->type == e1000_eeprom_spi) { | |
1da177e4 LT |
4895 | uint16_t word_in; |
4896 | uint8_t read_opcode = EEPROM_READ_OPCODE_SPI; | |
4897 | ||
8fc897b0 | 4898 | if (e1000_spi_eeprom_ready(hw)) { |
1da177e4 LT |
4899 | e1000_release_eeprom(hw); |
4900 | return -E1000_ERR_EEPROM; | |
4901 | } | |
4902 | ||
4903 | e1000_standby_eeprom(hw); | |
4904 | ||
4905 | /* Some SPI eeproms use the 8th address bit embedded in the opcode */ | |
8fc897b0 | 4906 | if ((eeprom->address_bits == 8) && (offset >= 128)) |
1da177e4 LT |
4907 | read_opcode |= EEPROM_A8_OPCODE_SPI; |
4908 | ||
4909 | /* Send the READ command (opcode + addr) */ | |
4910 | e1000_shift_out_ee_bits(hw, read_opcode, eeprom->opcode_bits); | |
4911 | e1000_shift_out_ee_bits(hw, (uint16_t)(offset*2), eeprom->address_bits); | |
4912 | ||
4913 | /* Read the data. The address of the eeprom internally increments with | |
4914 | * each byte (spi) being read, saving on the overhead of eeprom setup | |
4915 | * and tear-down. The address counter will roll over if reading beyond | |
4916 | * the size of the eeprom, thus allowing the entire memory to be read | |
4917 | * starting from any offset. */ | |
4918 | for (i = 0; i < words; i++) { | |
4919 | word_in = e1000_shift_in_ee_bits(hw, 16); | |
4920 | data[i] = (word_in >> 8) | (word_in << 8); | |
4921 | } | |
8fc897b0 | 4922 | } else if (eeprom->type == e1000_eeprom_microwire) { |
1da177e4 LT |
4923 | for (i = 0; i < words; i++) { |
4924 | /* Send the READ command (opcode + addr) */ | |
4925 | e1000_shift_out_ee_bits(hw, EEPROM_READ_OPCODE_MICROWIRE, | |
4926 | eeprom->opcode_bits); | |
4927 | e1000_shift_out_ee_bits(hw, (uint16_t)(offset + i), | |
4928 | eeprom->address_bits); | |
4929 | ||
4930 | /* Read the data. For microwire, each word requires the overhead | |
4931 | * of eeprom setup and tear-down. */ | |
4932 | data[i] = e1000_shift_in_ee_bits(hw, 16); | |
4933 | e1000_standby_eeprom(hw); | |
4934 | } | |
4935 | } | |
4936 | ||
4937 | /* End this read operation */ | |
4938 | e1000_release_eeprom(hw); | |
4939 | ||
4940 | return E1000_SUCCESS; | |
4941 | } | |
4942 | ||
4943 | /****************************************************************************** | |
2d7edb92 | 4944 | * Reads a 16 bit word from the EEPROM using the EERD register. |
1da177e4 LT |
4945 | * |
4946 | * hw - Struct containing variables accessed by shared code | |
2d7edb92 MC |
4947 | * offset - offset of word in the EEPROM to read |
4948 | * data - word read from the EEPROM | |
4949 | * words - number of words to read | |
1da177e4 | 4950 | *****************************************************************************/ |
3ad2cc67 | 4951 | static int32_t |
2d7edb92 MC |
4952 | e1000_read_eeprom_eerd(struct e1000_hw *hw, |
4953 | uint16_t offset, | |
4954 | uint16_t words, | |
4955 | uint16_t *data) | |
1da177e4 | 4956 | { |
2d7edb92 MC |
4957 | uint32_t i, eerd = 0; |
4958 | int32_t error = 0; | |
1da177e4 | 4959 | |
2d7edb92 MC |
4960 | for (i = 0; i < words; i++) { |
4961 | eerd = ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) + | |
4962 | E1000_EEPROM_RW_REG_START; | |
1da177e4 | 4963 | |
2d7edb92 MC |
4964 | E1000_WRITE_REG(hw, EERD, eerd); |
4965 | error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_READ); | |
76c224bc | 4966 | |
8fc897b0 | 4967 | if (error) { |
2d7edb92 | 4968 | break; |
1da177e4 | 4969 | } |
2d7edb92 | 4970 | data[i] = (E1000_READ_REG(hw, EERD) >> E1000_EEPROM_RW_REG_DATA); |
76c224bc | 4971 | |
1da177e4 | 4972 | } |
76c224bc | 4973 | |
2d7edb92 | 4974 | return error; |
1da177e4 LT |
4975 | } |
4976 | ||
4977 | /****************************************************************************** | |
2d7edb92 | 4978 | * Writes a 16 bit word from the EEPROM using the EEWR register. |
1da177e4 LT |
4979 | * |
4980 | * hw - Struct containing variables accessed by shared code | |
2d7edb92 MC |
4981 | * offset - offset of word in the EEPROM to read |
4982 | * data - word read from the EEPROM | |
4983 | * words - number of words to read | |
1da177e4 | 4984 | *****************************************************************************/ |
3ad2cc67 | 4985 | static int32_t |
2d7edb92 MC |
4986 | e1000_write_eeprom_eewr(struct e1000_hw *hw, |
4987 | uint16_t offset, | |
4988 | uint16_t words, | |
4989 | uint16_t *data) | |
1da177e4 | 4990 | { |
2d7edb92 MC |
4991 | uint32_t register_value = 0; |
4992 | uint32_t i = 0; | |
4993 | int32_t error = 0; | |
1da177e4 | 4994 | |
6418ecc6 JK |
4995 | if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) |
4996 | return -E1000_ERR_SWFW_SYNC; | |
4997 | ||
2d7edb92 | 4998 | for (i = 0; i < words; i++) { |
76c224bc AK |
4999 | register_value = (data[i] << E1000_EEPROM_RW_REG_DATA) | |
5000 | ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) | | |
2d7edb92 | 5001 | E1000_EEPROM_RW_REG_START; |
1da177e4 | 5002 | |
2d7edb92 | 5003 | error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); |
8fc897b0 | 5004 | if (error) { |
2d7edb92 | 5005 | break; |
76c224bc | 5006 | } |
2d7edb92 MC |
5007 | |
5008 | E1000_WRITE_REG(hw, EEWR, register_value); | |
76c224bc | 5009 | |
2d7edb92 | 5010 | error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); |
76c224bc | 5011 | |
8fc897b0 | 5012 | if (error) { |
2d7edb92 | 5013 | break; |
76c224bc | 5014 | } |
2d7edb92 | 5015 | } |
76c224bc | 5016 | |
6418ecc6 | 5017 | e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); |
2d7edb92 MC |
5018 | return error; |
5019 | } | |
5020 | ||
5021 | /****************************************************************************** | |
5022 | * Polls the status bit (bit 1) of the EERD to determine when the read is done. | |
5023 | * | |
5024 | * hw - Struct containing variables accessed by shared code | |
5025 | *****************************************************************************/ | |
3ad2cc67 | 5026 | static int32_t |
2d7edb92 MC |
5027 | e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd) |
5028 | { | |
5029 | uint32_t attempts = 100000; | |
5030 | uint32_t i, reg = 0; | |
5031 | int32_t done = E1000_ERR_EEPROM; | |
5032 | ||
8fc897b0 AK |
5033 | for (i = 0; i < attempts; i++) { |
5034 | if (eerd == E1000_EEPROM_POLL_READ) | |
2d7edb92 | 5035 | reg = E1000_READ_REG(hw, EERD); |
76c224bc | 5036 | else |
2d7edb92 MC |
5037 | reg = E1000_READ_REG(hw, EEWR); |
5038 | ||
8fc897b0 | 5039 | if (reg & E1000_EEPROM_RW_REG_DONE) { |
2d7edb92 MC |
5040 | done = E1000_SUCCESS; |
5041 | break; | |
5042 | } | |
5043 | udelay(5); | |
5044 | } | |
5045 | ||
5046 | return done; | |
5047 | } | |
5048 | ||
5049 | /*************************************************************************** | |
5050 | * Description: Determines if the onboard NVM is FLASH or EEPROM. | |
5051 | * | |
5052 | * hw - Struct containing variables accessed by shared code | |
5053 | ****************************************************************************/ | |
3ad2cc67 | 5054 | static boolean_t |
2d7edb92 MC |
5055 | e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw) |
5056 | { | |
5057 | uint32_t eecd = 0; | |
5058 | ||
6418ecc6 JK |
5059 | DEBUGFUNC("e1000_is_onboard_nvm_eeprom"); |
5060 | ||
cd94dd0b AK |
5061 | if (hw->mac_type == e1000_ich8lan) |
5062 | return FALSE; | |
5063 | ||
5064 | if (hw->mac_type == e1000_82573) { | |
2d7edb92 MC |
5065 | eecd = E1000_READ_REG(hw, EECD); |
5066 | ||
5067 | /* Isolate bits 15 & 16 */ | |
5068 | eecd = ((eecd >> 15) & 0x03); | |
5069 | ||
5070 | /* If both bits are set, device is Flash type */ | |
8fc897b0 | 5071 | if (eecd == 0x03) { |
2d7edb92 MC |
5072 | return FALSE; |
5073 | } | |
5074 | } | |
5075 | return TRUE; | |
5076 | } | |
5077 | ||
5078 | /****************************************************************************** | |
5079 | * Verifies that the EEPROM has a valid checksum | |
5080 | * | |
5081 | * hw - Struct containing variables accessed by shared code | |
5082 | * | |
5083 | * Reads the first 64 16 bit words of the EEPROM and sums the values read. | |
5084 | * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is | |
5085 | * valid. | |
5086 | *****************************************************************************/ | |
5087 | int32_t | |
5088 | e1000_validate_eeprom_checksum(struct e1000_hw *hw) | |
5089 | { | |
5090 | uint16_t checksum = 0; | |
5091 | uint16_t i, eeprom_data; | |
5092 | ||
5093 | DEBUGFUNC("e1000_validate_eeprom_checksum"); | |
5094 | ||
5095 | if ((hw->mac_type == e1000_82573) && | |
5096 | (e1000_is_onboard_nvm_eeprom(hw) == FALSE)) { | |
5097 | /* Check bit 4 of word 10h. If it is 0, firmware is done updating | |
5098 | * 10h-12h. Checksum may need to be fixed. */ | |
5099 | e1000_read_eeprom(hw, 0x10, 1, &eeprom_data); | |
5100 | if ((eeprom_data & 0x10) == 0) { | |
5101 | /* Read 0x23 and check bit 15. This bit is a 1 when the checksum | |
5102 | * has already been fixed. If the checksum is still wrong and this | |
5103 | * bit is a 1, we need to return bad checksum. Otherwise, we need | |
5104 | * to set this bit to a 1 and update the checksum. */ | |
5105 | e1000_read_eeprom(hw, 0x23, 1, &eeprom_data); | |
5106 | if ((eeprom_data & 0x8000) == 0) { | |
5107 | eeprom_data |= 0x8000; | |
5108 | e1000_write_eeprom(hw, 0x23, 1, &eeprom_data); | |
5109 | e1000_update_eeprom_checksum(hw); | |
5110 | } | |
5111 | } | |
5112 | } | |
5113 | ||
cd94dd0b AK |
5114 | if (hw->mac_type == e1000_ich8lan) { |
5115 | /* Drivers must allocate the shadow ram structure for the | |
5116 | * EEPROM checksum to be updated. Otherwise, this bit as well | |
5117 | * as the checksum must both be set correctly for this | |
5118 | * validation to pass. | |
5119 | */ | |
5120 | e1000_read_eeprom(hw, 0x19, 1, &eeprom_data); | |
5121 | if ((eeprom_data & 0x40) == 0) { | |
5122 | eeprom_data |= 0x40; | |
5123 | e1000_write_eeprom(hw, 0x19, 1, &eeprom_data); | |
5124 | e1000_update_eeprom_checksum(hw); | |
5125 | } | |
5126 | } | |
5127 | ||
5128 | for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { | |
5129 | if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { | |
2d7edb92 MC |
5130 | DEBUGOUT("EEPROM Read Error\n"); |
5131 | return -E1000_ERR_EEPROM; | |
5132 | } | |
5133 | checksum += eeprom_data; | |
5134 | } | |
5135 | ||
8fc897b0 | 5136 | if (checksum == (uint16_t) EEPROM_SUM) |
2d7edb92 MC |
5137 | return E1000_SUCCESS; |
5138 | else { | |
5139 | DEBUGOUT("EEPROM Checksum Invalid\n"); | |
5140 | return -E1000_ERR_EEPROM; | |
5141 | } | |
5142 | } | |
5143 | ||
5144 | /****************************************************************************** | |
5145 | * Calculates the EEPROM checksum and writes it to the EEPROM | |
5146 | * | |
5147 | * hw - Struct containing variables accessed by shared code | |
5148 | * | |
5149 | * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA. | |
5150 | * Writes the difference to word offset 63 of the EEPROM. | |
5151 | *****************************************************************************/ | |
5152 | int32_t | |
5153 | e1000_update_eeprom_checksum(struct e1000_hw *hw) | |
5154 | { | |
cd94dd0b | 5155 | uint32_t ctrl_ext; |
2d7edb92 MC |
5156 | uint16_t checksum = 0; |
5157 | uint16_t i, eeprom_data; | |
5158 | ||
5159 | DEBUGFUNC("e1000_update_eeprom_checksum"); | |
5160 | ||
8fc897b0 AK |
5161 | for (i = 0; i < EEPROM_CHECKSUM_REG; i++) { |
5162 | if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { | |
2d7edb92 MC |
5163 | DEBUGOUT("EEPROM Read Error\n"); |
5164 | return -E1000_ERR_EEPROM; | |
5165 | } | |
5166 | checksum += eeprom_data; | |
5167 | } | |
5168 | checksum = (uint16_t) EEPROM_SUM - checksum; | |
8fc897b0 | 5169 | if (e1000_write_eeprom(hw, EEPROM_CHECKSUM_REG, 1, &checksum) < 0) { |
1da177e4 LT |
5170 | DEBUGOUT("EEPROM Write Error\n"); |
5171 | return -E1000_ERR_EEPROM; | |
2d7edb92 MC |
5172 | } else if (hw->eeprom.type == e1000_eeprom_flash) { |
5173 | e1000_commit_shadow_ram(hw); | |
cd94dd0b AK |
5174 | } else if (hw->eeprom.type == e1000_eeprom_ich8) { |
5175 | e1000_commit_shadow_ram(hw); | |
5176 | /* Reload the EEPROM, or else modifications will not appear | |
5177 | * until after next adapter reset. */ | |
5178 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
5179 | ctrl_ext |= E1000_CTRL_EXT_EE_RST; | |
5180 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
f8ec4733 | 5181 | msleep(10); |
1da177e4 LT |
5182 | } |
5183 | return E1000_SUCCESS; | |
5184 | } | |
5185 | ||
5186 | /****************************************************************************** | |
5187 | * Parent function for writing words to the different EEPROM types. | |
5188 | * | |
5189 | * hw - Struct containing variables accessed by shared code | |
5190 | * offset - offset within the EEPROM to be written to | |
5191 | * words - number of words to write | |
5192 | * data - 16 bit word to be written to the EEPROM | |
5193 | * | |
5194 | * If e1000_update_eeprom_checksum is not called after this function, the | |
5195 | * EEPROM will most likely contain an invalid checksum. | |
5196 | *****************************************************************************/ | |
5197 | int32_t | |
5198 | e1000_write_eeprom(struct e1000_hw *hw, | |
5199 | uint16_t offset, | |
5200 | uint16_t words, | |
5201 | uint16_t *data) | |
5202 | { | |
5203 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
5204 | int32_t status = 0; | |
5205 | ||
5206 | DEBUGFUNC("e1000_write_eeprom"); | |
5207 | ||
5208 | /* A check for invalid values: offset too large, too many words, and not | |
5209 | * enough words. | |
5210 | */ | |
8fc897b0 | 5211 | if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || |
1da177e4 LT |
5212 | (words == 0)) { |
5213 | DEBUGOUT("\"words\" parameter out of bounds\n"); | |
5214 | return -E1000_ERR_EEPROM; | |
5215 | } | |
5216 | ||
868d5309 | 5217 | /* 82573 writes only through eewr */ |
8fc897b0 | 5218 | if (eeprom->use_eewr == TRUE) |
2d7edb92 MC |
5219 | return e1000_write_eeprom_eewr(hw, offset, words, data); |
5220 | ||
cd94dd0b AK |
5221 | if (eeprom->type == e1000_eeprom_ich8) |
5222 | return e1000_write_eeprom_ich8(hw, offset, words, data); | |
5223 | ||
1da177e4 LT |
5224 | /* Prepare the EEPROM for writing */ |
5225 | if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) | |
5226 | return -E1000_ERR_EEPROM; | |
5227 | ||
8fc897b0 | 5228 | if (eeprom->type == e1000_eeprom_microwire) { |
1da177e4 LT |
5229 | status = e1000_write_eeprom_microwire(hw, offset, words, data); |
5230 | } else { | |
5231 | status = e1000_write_eeprom_spi(hw, offset, words, data); | |
f8ec4733 | 5232 | msleep(10); |
1da177e4 LT |
5233 | } |
5234 | ||
5235 | /* Done with writing */ | |
5236 | e1000_release_eeprom(hw); | |
5237 | ||
5238 | return status; | |
5239 | } | |
5240 | ||
5241 | /****************************************************************************** | |
5242 | * Writes a 16 bit word to a given offset in an SPI EEPROM. | |
5243 | * | |
5244 | * hw - Struct containing variables accessed by shared code | |
5245 | * offset - offset within the EEPROM to be written to | |
5246 | * words - number of words to write | |
5247 | * data - pointer to array of 8 bit words to be written to the EEPROM | |
5248 | * | |
5249 | *****************************************************************************/ | |
5250 | int32_t | |
5251 | e1000_write_eeprom_spi(struct e1000_hw *hw, | |
5252 | uint16_t offset, | |
5253 | uint16_t words, | |
5254 | uint16_t *data) | |
5255 | { | |
5256 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
5257 | uint16_t widx = 0; | |
5258 | ||
5259 | DEBUGFUNC("e1000_write_eeprom_spi"); | |
5260 | ||
5261 | while (widx < words) { | |
5262 | uint8_t write_opcode = EEPROM_WRITE_OPCODE_SPI; | |
5263 | ||
8fc897b0 | 5264 | if (e1000_spi_eeprom_ready(hw)) return -E1000_ERR_EEPROM; |
1da177e4 LT |
5265 | |
5266 | e1000_standby_eeprom(hw); | |
5267 | ||
5268 | /* Send the WRITE ENABLE command (8 bit opcode ) */ | |
5269 | e1000_shift_out_ee_bits(hw, EEPROM_WREN_OPCODE_SPI, | |
5270 | eeprom->opcode_bits); | |
5271 | ||
5272 | e1000_standby_eeprom(hw); | |
5273 | ||
5274 | /* Some SPI eeproms use the 8th address bit embedded in the opcode */ | |
8fc897b0 | 5275 | if ((eeprom->address_bits == 8) && (offset >= 128)) |
1da177e4 LT |
5276 | write_opcode |= EEPROM_A8_OPCODE_SPI; |
5277 | ||
5278 | /* Send the Write command (8-bit opcode + addr) */ | |
5279 | e1000_shift_out_ee_bits(hw, write_opcode, eeprom->opcode_bits); | |
5280 | ||
5281 | e1000_shift_out_ee_bits(hw, (uint16_t)((offset + widx)*2), | |
5282 | eeprom->address_bits); | |
5283 | ||
5284 | /* Send the data */ | |
5285 | ||
5286 | /* Loop to allow for up to whole page write (32 bytes) of eeprom */ | |
5287 | while (widx < words) { | |
5288 | uint16_t word_out = data[widx]; | |
5289 | word_out = (word_out >> 8) | (word_out << 8); | |
5290 | e1000_shift_out_ee_bits(hw, word_out, 16); | |
5291 | widx++; | |
5292 | ||
5293 | /* Some larger eeprom sizes are capable of a 32-byte PAGE WRITE | |
5294 | * operation, while the smaller eeproms are capable of an 8-byte | |
5295 | * PAGE WRITE operation. Break the inner loop to pass new address | |
5296 | */ | |
8fc897b0 | 5297 | if ((((offset + widx)*2) % eeprom->page_size) == 0) { |
1da177e4 LT |
5298 | e1000_standby_eeprom(hw); |
5299 | break; | |
5300 | } | |
5301 | } | |
5302 | } | |
5303 | ||
5304 | return E1000_SUCCESS; | |
5305 | } | |
5306 | ||
5307 | /****************************************************************************** | |
5308 | * Writes a 16 bit word to a given offset in a Microwire EEPROM. | |
5309 | * | |
5310 | * hw - Struct containing variables accessed by shared code | |
5311 | * offset - offset within the EEPROM to be written to | |
5312 | * words - number of words to write | |
5313 | * data - pointer to array of 16 bit words to be written to the EEPROM | |
5314 | * | |
5315 | *****************************************************************************/ | |
5316 | int32_t | |
5317 | e1000_write_eeprom_microwire(struct e1000_hw *hw, | |
5318 | uint16_t offset, | |
5319 | uint16_t words, | |
5320 | uint16_t *data) | |
5321 | { | |
5322 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
5323 | uint32_t eecd; | |
5324 | uint16_t words_written = 0; | |
5325 | uint16_t i = 0; | |
5326 | ||
5327 | DEBUGFUNC("e1000_write_eeprom_microwire"); | |
5328 | ||
5329 | /* Send the write enable command to the EEPROM (3-bit opcode plus | |
5330 | * 6/8-bit dummy address beginning with 11). It's less work to include | |
5331 | * the 11 of the dummy address as part of the opcode than it is to shift | |
5332 | * it over the correct number of bits for the address. This puts the | |
5333 | * EEPROM into write/erase mode. | |
5334 | */ | |
5335 | e1000_shift_out_ee_bits(hw, EEPROM_EWEN_OPCODE_MICROWIRE, | |
5336 | (uint16_t)(eeprom->opcode_bits + 2)); | |
5337 | ||
5338 | e1000_shift_out_ee_bits(hw, 0, (uint16_t)(eeprom->address_bits - 2)); | |
5339 | ||
5340 | /* Prepare the EEPROM */ | |
5341 | e1000_standby_eeprom(hw); | |
5342 | ||
5343 | while (words_written < words) { | |
5344 | /* Send the Write command (3-bit opcode + addr) */ | |
5345 | e1000_shift_out_ee_bits(hw, EEPROM_WRITE_OPCODE_MICROWIRE, | |
5346 | eeprom->opcode_bits); | |
5347 | ||
5348 | e1000_shift_out_ee_bits(hw, (uint16_t)(offset + words_written), | |
5349 | eeprom->address_bits); | |
5350 | ||
5351 | /* Send the data */ | |
5352 | e1000_shift_out_ee_bits(hw, data[words_written], 16); | |
5353 | ||
5354 | /* Toggle the CS line. This in effect tells the EEPROM to execute | |
5355 | * the previous command. | |
5356 | */ | |
5357 | e1000_standby_eeprom(hw); | |
5358 | ||
5359 | /* Read DO repeatedly until it is high (equal to '1'). The EEPROM will | |
5360 | * signal that the command has been completed by raising the DO signal. | |
5361 | * If DO does not go high in 10 milliseconds, then error out. | |
5362 | */ | |
8fc897b0 | 5363 | for (i = 0; i < 200; i++) { |
1da177e4 | 5364 | eecd = E1000_READ_REG(hw, EECD); |
8fc897b0 | 5365 | if (eecd & E1000_EECD_DO) break; |
1da177e4 LT |
5366 | udelay(50); |
5367 | } | |
8fc897b0 | 5368 | if (i == 200) { |
1da177e4 LT |
5369 | DEBUGOUT("EEPROM Write did not complete\n"); |
5370 | return -E1000_ERR_EEPROM; | |
5371 | } | |
5372 | ||
5373 | /* Recover from write */ | |
5374 | e1000_standby_eeprom(hw); | |
5375 | ||
5376 | words_written++; | |
5377 | } | |
5378 | ||
5379 | /* Send the write disable command to the EEPROM (3-bit opcode plus | |
5380 | * 6/8-bit dummy address beginning with 10). It's less work to include | |
5381 | * the 10 of the dummy address as part of the opcode than it is to shift | |
5382 | * it over the correct number of bits for the address. This takes the | |
5383 | * EEPROM out of write/erase mode. | |
5384 | */ | |
5385 | e1000_shift_out_ee_bits(hw, EEPROM_EWDS_OPCODE_MICROWIRE, | |
5386 | (uint16_t)(eeprom->opcode_bits + 2)); | |
5387 | ||
5388 | e1000_shift_out_ee_bits(hw, 0, (uint16_t)(eeprom->address_bits - 2)); | |
5389 | ||
5390 | return E1000_SUCCESS; | |
5391 | } | |
5392 | ||
2d7edb92 MC |
5393 | /****************************************************************************** |
5394 | * Flushes the cached eeprom to NVM. This is done by saving the modified values | |
5395 | * in the eeprom cache and the non modified values in the currently active bank | |
5396 | * to the new bank. | |
5397 | * | |
5398 | * hw - Struct containing variables accessed by shared code | |
5399 | * offset - offset of word in the EEPROM to read | |
5400 | * data - word read from the EEPROM | |
5401 | * words - number of words to read | |
5402 | *****************************************************************************/ | |
3ad2cc67 | 5403 | static int32_t |
2d7edb92 MC |
5404 | e1000_commit_shadow_ram(struct e1000_hw *hw) |
5405 | { | |
5406 | uint32_t attempts = 100000; | |
5407 | uint32_t eecd = 0; | |
5408 | uint32_t flop = 0; | |
5409 | uint32_t i = 0; | |
5410 | int32_t error = E1000_SUCCESS; | |
cd94dd0b AK |
5411 | uint32_t old_bank_offset = 0; |
5412 | uint32_t new_bank_offset = 0; | |
5413 | uint32_t sector_retries = 0; | |
5414 | uint8_t low_byte = 0; | |
5415 | uint8_t high_byte = 0; | |
5416 | uint8_t temp_byte = 0; | |
5417 | boolean_t sector_write_failed = FALSE; | |
2d7edb92 MC |
5418 | |
5419 | if (hw->mac_type == e1000_82573) { | |
cd94dd0b AK |
5420 | /* The flop register will be used to determine if flash type is STM */ |
5421 | flop = E1000_READ_REG(hw, FLOP); | |
2d7edb92 MC |
5422 | for (i=0; i < attempts; i++) { |
5423 | eecd = E1000_READ_REG(hw, EECD); | |
5424 | if ((eecd & E1000_EECD_FLUPD) == 0) { | |
5425 | break; | |
5426 | } | |
5427 | udelay(5); | |
5428 | } | |
5429 | ||
5430 | if (i == attempts) { | |
5431 | return -E1000_ERR_EEPROM; | |
5432 | } | |
5433 | ||
96838a40 | 5434 | /* If STM opcode located in bits 15:8 of flop, reset firmware */ |
2d7edb92 MC |
5435 | if ((flop & 0xFF00) == E1000_STM_OPCODE) { |
5436 | E1000_WRITE_REG(hw, HICR, E1000_HICR_FW_RESET); | |
5437 | } | |
5438 | ||
5439 | /* Perform the flash update */ | |
5440 | E1000_WRITE_REG(hw, EECD, eecd | E1000_EECD_FLUPD); | |
5441 | ||
96838a40 | 5442 | for (i=0; i < attempts; i++) { |
2d7edb92 MC |
5443 | eecd = E1000_READ_REG(hw, EECD); |
5444 | if ((eecd & E1000_EECD_FLUPD) == 0) { | |
5445 | break; | |
5446 | } | |
5447 | udelay(5); | |
5448 | } | |
5449 | ||
5450 | if (i == attempts) { | |
5451 | return -E1000_ERR_EEPROM; | |
5452 | } | |
5453 | } | |
5454 | ||
cd94dd0b AK |
5455 | if (hw->mac_type == e1000_ich8lan && hw->eeprom_shadow_ram != NULL) { |
5456 | /* We're writing to the opposite bank so if we're on bank 1, | |
5457 | * write to bank 0 etc. We also need to erase the segment that | |
5458 | * is going to be written */ | |
5459 | if (!(E1000_READ_REG(hw, EECD) & E1000_EECD_SEC1VAL)) { | |
5460 | new_bank_offset = hw->flash_bank_size * 2; | |
5461 | old_bank_offset = 0; | |
5462 | e1000_erase_ich8_4k_segment(hw, 1); | |
5463 | } else { | |
5464 | old_bank_offset = hw->flash_bank_size * 2; | |
5465 | new_bank_offset = 0; | |
5466 | e1000_erase_ich8_4k_segment(hw, 0); | |
5467 | } | |
5468 | ||
5469 | do { | |
5470 | sector_write_failed = FALSE; | |
5471 | /* Loop for every byte in the shadow RAM, | |
5472 | * which is in units of words. */ | |
5473 | for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { | |
5474 | /* Determine whether to write the value stored | |
5475 | * in the other NVM bank or a modified value stored | |
5476 | * in the shadow RAM */ | |
5477 | if (hw->eeprom_shadow_ram[i].modified == TRUE) { | |
5478 | low_byte = (uint8_t)hw->eeprom_shadow_ram[i].eeprom_word; | |
5479 | e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset, | |
5480 | &temp_byte); | |
5481 | udelay(100); | |
5482 | error = e1000_verify_write_ich8_byte(hw, | |
5483 | (i << 1) + new_bank_offset, | |
5484 | low_byte); | |
5485 | if (error != E1000_SUCCESS) | |
5486 | sector_write_failed = TRUE; | |
5487 | high_byte = | |
5488 | (uint8_t)(hw->eeprom_shadow_ram[i].eeprom_word >> 8); | |
5489 | e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset + 1, | |
5490 | &temp_byte); | |
5491 | udelay(100); | |
5492 | } else { | |
5493 | e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset, | |
5494 | &low_byte); | |
5495 | udelay(100); | |
5496 | error = e1000_verify_write_ich8_byte(hw, | |
5497 | (i << 1) + new_bank_offset, low_byte); | |
5498 | if (error != E1000_SUCCESS) | |
5499 | sector_write_failed = TRUE; | |
5500 | e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset + 1, | |
5501 | &high_byte); | |
5502 | } | |
5503 | ||
5504 | /* If the word is 0x13, then make sure the signature bits | |
5505 | * (15:14) are 11b until the commit has completed. | |
5506 | * This will allow us to write 10b which indicates the | |
5507 | * signature is valid. We want to do this after the write | |
5508 | * has completed so that we don't mark the segment valid | |
5509 | * while the write is still in progress */ | |
5510 | if (i == E1000_ICH8_NVM_SIG_WORD) | |
5511 | high_byte = E1000_ICH8_NVM_SIG_MASK | high_byte; | |
5512 | ||
5513 | error = e1000_verify_write_ich8_byte(hw, | |
5514 | (i << 1) + new_bank_offset + 1, high_byte); | |
5515 | if (error != E1000_SUCCESS) | |
5516 | sector_write_failed = TRUE; | |
5517 | ||
5518 | if (sector_write_failed == FALSE) { | |
5519 | /* Clear the now not used entry in the cache */ | |
5520 | hw->eeprom_shadow_ram[i].modified = FALSE; | |
5521 | hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; | |
5522 | } | |
5523 | } | |
5524 | ||
5525 | /* Don't bother writing the segment valid bits if sector | |
5526 | * programming failed. */ | |
5527 | if (sector_write_failed == FALSE) { | |
5528 | /* Finally validate the new segment by setting bit 15:14 | |
5529 | * to 10b in word 0x13 , this can be done without an | |
5530 | * erase as well since these bits are 11 to start with | |
5531 | * and we need to change bit 14 to 0b */ | |
5532 | e1000_read_ich8_byte(hw, | |
5533 | E1000_ICH8_NVM_SIG_WORD * 2 + 1 + new_bank_offset, | |
5534 | &high_byte); | |
5535 | high_byte &= 0xBF; | |
5536 | error = e1000_verify_write_ich8_byte(hw, | |
5537 | E1000_ICH8_NVM_SIG_WORD * 2 + 1 + new_bank_offset, | |
5538 | high_byte); | |
5539 | if (error != E1000_SUCCESS) | |
5540 | sector_write_failed = TRUE; | |
5541 | ||
5542 | /* And invalidate the previously valid segment by setting | |
5543 | * its signature word (0x13) high_byte to 0b. This can be | |
5544 | * done without an erase because flash erase sets all bits | |
5545 | * to 1's. We can write 1's to 0's without an erase */ | |
5546 | error = e1000_verify_write_ich8_byte(hw, | |
5547 | E1000_ICH8_NVM_SIG_WORD * 2 + 1 + old_bank_offset, | |
5548 | 0); | |
5549 | if (error != E1000_SUCCESS) | |
5550 | sector_write_failed = TRUE; | |
5551 | } | |
5552 | } while (++sector_retries < 10 && sector_write_failed == TRUE); | |
5553 | } | |
5554 | ||
2d7edb92 MC |
5555 | return error; |
5556 | } | |
5557 | ||
1da177e4 LT |
5558 | /****************************************************************************** |
5559 | * Reads the adapter's MAC address from the EEPROM and inverts the LSB for the | |
5560 | * second function of dual function devices | |
5561 | * | |
5562 | * hw - Struct containing variables accessed by shared code | |
5563 | *****************************************************************************/ | |
5564 | int32_t | |
5565 | e1000_read_mac_addr(struct e1000_hw * hw) | |
5566 | { | |
5567 | uint16_t offset; | |
5568 | uint16_t eeprom_data, i; | |
5569 | ||
5570 | DEBUGFUNC("e1000_read_mac_addr"); | |
5571 | ||
8fc897b0 | 5572 | for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) { |
1da177e4 | 5573 | offset = i >> 1; |
8fc897b0 | 5574 | if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) { |
1da177e4 LT |
5575 | DEBUGOUT("EEPROM Read Error\n"); |
5576 | return -E1000_ERR_EEPROM; | |
5577 | } | |
5578 | hw->perm_mac_addr[i] = (uint8_t) (eeprom_data & 0x00FF); | |
5579 | hw->perm_mac_addr[i+1] = (uint8_t) (eeprom_data >> 8); | |
5580 | } | |
96838a40 | 5581 | |
868d5309 MC |
5582 | switch (hw->mac_type) { |
5583 | default: | |
5584 | break; | |
5585 | case e1000_82546: | |
5586 | case e1000_82546_rev_3: | |
5587 | case e1000_82571: | |
6418ecc6 | 5588 | case e1000_80003es2lan: |
8fc897b0 | 5589 | if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) |
1da177e4 | 5590 | hw->perm_mac_addr[5] ^= 0x01; |
868d5309 MC |
5591 | break; |
5592 | } | |
1da177e4 | 5593 | |
8fc897b0 | 5594 | for (i = 0; i < NODE_ADDRESS_SIZE; i++) |
1da177e4 LT |
5595 | hw->mac_addr[i] = hw->perm_mac_addr[i]; |
5596 | return E1000_SUCCESS; | |
5597 | } | |
5598 | ||
5599 | /****************************************************************************** | |
5600 | * Initializes receive address filters. | |
5601 | * | |
5602 | * hw - Struct containing variables accessed by shared code | |
5603 | * | |
5604 | * Places the MAC address in receive address register 0 and clears the rest | |
5605 | * of the receive addresss registers. Clears the multicast table. Assumes | |
5606 | * the receiver is in reset when the routine is called. | |
5607 | *****************************************************************************/ | |
3ad2cc67 | 5608 | static void |
1da177e4 LT |
5609 | e1000_init_rx_addrs(struct e1000_hw *hw) |
5610 | { | |
5611 | uint32_t i; | |
2d7edb92 | 5612 | uint32_t rar_num; |
1da177e4 LT |
5613 | |
5614 | DEBUGFUNC("e1000_init_rx_addrs"); | |
5615 | ||
5616 | /* Setup the receive address. */ | |
5617 | DEBUGOUT("Programming MAC Address into RAR[0]\n"); | |
5618 | ||
5619 | e1000_rar_set(hw, hw->mac_addr, 0); | |
5620 | ||
2d7edb92 | 5621 | rar_num = E1000_RAR_ENTRIES; |
868d5309 MC |
5622 | |
5623 | /* Reserve a spot for the Locally Administered Address to work around | |
5624 | * an 82571 issue in which a reset on one port will reload the MAC on | |
5625 | * the other port. */ | |
5626 | if ((hw->mac_type == e1000_82571) && (hw->laa_is_present == TRUE)) | |
5627 | rar_num -= 1; | |
cd94dd0b AK |
5628 | if (hw->mac_type == e1000_ich8lan) |
5629 | rar_num = E1000_RAR_ENTRIES_ICH8LAN; | |
5630 | ||
1da177e4 LT |
5631 | /* Zero out the other 15 receive addresses. */ |
5632 | DEBUGOUT("Clearing RAR[1-15]\n"); | |
8fc897b0 | 5633 | for (i = 1; i < rar_num; i++) { |
1da177e4 | 5634 | E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0); |
4ca213a6 | 5635 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5636 | E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0); |
4ca213a6 | 5637 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5638 | } |
5639 | } | |
5640 | ||
5641 | /****************************************************************************** | |
5642 | * Updates the MAC's list of multicast addresses. | |
5643 | * | |
5644 | * hw - Struct containing variables accessed by shared code | |
5645 | * mc_addr_list - the list of new multicast addresses | |
5646 | * mc_addr_count - number of addresses | |
5647 | * pad - number of bytes between addresses in the list | |
5648 | * rar_used_count - offset where to start adding mc addresses into the RAR's | |
5649 | * | |
5650 | * The given list replaces any existing list. Clears the last 15 receive | |
5651 | * address registers and the multicast table. Uses receive address registers | |
5652 | * for the first 15 multicast addresses, and hashes the rest into the | |
5653 | * multicast table. | |
5654 | *****************************************************************************/ | |
e4c780b1 | 5655 | #if 0 |
1da177e4 LT |
5656 | void |
5657 | e1000_mc_addr_list_update(struct e1000_hw *hw, | |
5658 | uint8_t *mc_addr_list, | |
5659 | uint32_t mc_addr_count, | |
5660 | uint32_t pad, | |
5661 | uint32_t rar_used_count) | |
5662 | { | |
5663 | uint32_t hash_value; | |
5664 | uint32_t i; | |
2d7edb92 MC |
5665 | uint32_t num_rar_entry; |
5666 | uint32_t num_mta_entry; | |
76c224bc | 5667 | |
1da177e4 LT |
5668 | DEBUGFUNC("e1000_mc_addr_list_update"); |
5669 | ||
5670 | /* Set the new number of MC addresses that we are being requested to use. */ | |
5671 | hw->num_mc_addrs = mc_addr_count; | |
5672 | ||
5673 | /* Clear RAR[1-15] */ | |
5674 | DEBUGOUT(" Clearing RAR[1-15]\n"); | |
2d7edb92 | 5675 | num_rar_entry = E1000_RAR_ENTRIES; |
cd94dd0b AK |
5676 | if (hw->mac_type == e1000_ich8lan) |
5677 | num_rar_entry = E1000_RAR_ENTRIES_ICH8LAN; | |
868d5309 MC |
5678 | /* Reserve a spot for the Locally Administered Address to work around |
5679 | * an 82571 issue in which a reset on one port will reload the MAC on | |
5680 | * the other port. */ | |
5681 | if ((hw->mac_type == e1000_82571) && (hw->laa_is_present == TRUE)) | |
5682 | num_rar_entry -= 1; | |
5683 | ||
8fc897b0 | 5684 | for (i = rar_used_count; i < num_rar_entry; i++) { |
1da177e4 | 5685 | E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0); |
4ca213a6 | 5686 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5687 | E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0); |
4ca213a6 | 5688 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5689 | } |
5690 | ||
5691 | /* Clear the MTA */ | |
5692 | DEBUGOUT(" Clearing MTA\n"); | |
2d7edb92 | 5693 | num_mta_entry = E1000_NUM_MTA_REGISTERS; |
cd94dd0b AK |
5694 | if (hw->mac_type == e1000_ich8lan) |
5695 | num_mta_entry = E1000_NUM_MTA_REGISTERS_ICH8LAN; | |
8fc897b0 | 5696 | for (i = 0; i < num_mta_entry; i++) { |
1da177e4 | 5697 | E1000_WRITE_REG_ARRAY(hw, MTA, i, 0); |
4ca213a6 | 5698 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5699 | } |
5700 | ||
5701 | /* Add the new addresses */ | |
8fc897b0 | 5702 | for (i = 0; i < mc_addr_count; i++) { |
1da177e4 LT |
5703 | DEBUGOUT(" Adding the multicast addresses:\n"); |
5704 | DEBUGOUT7(" MC Addr #%d =%.2X %.2X %.2X %.2X %.2X %.2X\n", i, | |
5705 | mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad)], | |
5706 | mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 1], | |
5707 | mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 2], | |
5708 | mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 3], | |
5709 | mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 4], | |
5710 | mc_addr_list[i * (ETH_LENGTH_OF_ADDRESS + pad) + 5]); | |
5711 | ||
5712 | hash_value = e1000_hash_mc_addr(hw, | |
5713 | mc_addr_list + | |
5714 | (i * (ETH_LENGTH_OF_ADDRESS + pad))); | |
5715 | ||
5716 | DEBUGOUT1(" Hash value = 0x%03X\n", hash_value); | |
5717 | ||
5718 | /* Place this multicast address in the RAR if there is room, * | |
5719 | * else put it in the MTA | |
5720 | */ | |
2d7edb92 | 5721 | if (rar_used_count < num_rar_entry) { |
1da177e4 LT |
5722 | e1000_rar_set(hw, |
5723 | mc_addr_list + (i * (ETH_LENGTH_OF_ADDRESS + pad)), | |
5724 | rar_used_count); | |
5725 | rar_used_count++; | |
5726 | } else { | |
5727 | e1000_mta_set(hw, hash_value); | |
5728 | } | |
5729 | } | |
5730 | DEBUGOUT("MC Update Complete\n"); | |
5731 | } | |
e4c780b1 | 5732 | #endif /* 0 */ |
1da177e4 LT |
5733 | |
5734 | /****************************************************************************** | |
5735 | * Hashes an address to determine its location in the multicast table | |
5736 | * | |
5737 | * hw - Struct containing variables accessed by shared code | |
5738 | * mc_addr - the multicast address to hash | |
5739 | *****************************************************************************/ | |
5740 | uint32_t | |
5741 | e1000_hash_mc_addr(struct e1000_hw *hw, | |
5742 | uint8_t *mc_addr) | |
5743 | { | |
5744 | uint32_t hash_value = 0; | |
5745 | ||
5746 | /* The portion of the address that is used for the hash table is | |
5747 | * determined by the mc_filter_type setting. | |
5748 | */ | |
5749 | switch (hw->mc_filter_type) { | |
5750 | /* [0] [1] [2] [3] [4] [5] | |
5751 | * 01 AA 00 12 34 56 | |
5752 | * LSB MSB | |
5753 | */ | |
5754 | case 0: | |
cd94dd0b AK |
5755 | if (hw->mac_type == e1000_ich8lan) { |
5756 | /* [47:38] i.e. 0x158 for above example address */ | |
5757 | hash_value = ((mc_addr[4] >> 6) | (((uint16_t) mc_addr[5]) << 2)); | |
5758 | } else { | |
5759 | /* [47:36] i.e. 0x563 for above example address */ | |
5760 | hash_value = ((mc_addr[4] >> 4) | (((uint16_t) mc_addr[5]) << 4)); | |
5761 | } | |
1da177e4 LT |
5762 | break; |
5763 | case 1: | |
cd94dd0b AK |
5764 | if (hw->mac_type == e1000_ich8lan) { |
5765 | /* [46:37] i.e. 0x2B1 for above example address */ | |
5766 | hash_value = ((mc_addr[4] >> 5) | (((uint16_t) mc_addr[5]) << 3)); | |
5767 | } else { | |
5768 | /* [46:35] i.e. 0xAC6 for above example address */ | |
5769 | hash_value = ((mc_addr[4] >> 3) | (((uint16_t) mc_addr[5]) << 5)); | |
5770 | } | |
1da177e4 LT |
5771 | break; |
5772 | case 2: | |
cd94dd0b AK |
5773 | if (hw->mac_type == e1000_ich8lan) { |
5774 | /*[45:36] i.e. 0x163 for above example address */ | |
5775 | hash_value = ((mc_addr[4] >> 4) | (((uint16_t) mc_addr[5]) << 4)); | |
5776 | } else { | |
5777 | /* [45:34] i.e. 0x5D8 for above example address */ | |
5778 | hash_value = ((mc_addr[4] >> 2) | (((uint16_t) mc_addr[5]) << 6)); | |
5779 | } | |
1da177e4 LT |
5780 | break; |
5781 | case 3: | |
cd94dd0b AK |
5782 | if (hw->mac_type == e1000_ich8lan) { |
5783 | /* [43:34] i.e. 0x18D for above example address */ | |
5784 | hash_value = ((mc_addr[4] >> 2) | (((uint16_t) mc_addr[5]) << 6)); | |
5785 | } else { | |
5786 | /* [43:32] i.e. 0x634 for above example address */ | |
5787 | hash_value = ((mc_addr[4]) | (((uint16_t) mc_addr[5]) << 8)); | |
5788 | } | |
1da177e4 LT |
5789 | break; |
5790 | } | |
5791 | ||
5792 | hash_value &= 0xFFF; | |
cd94dd0b AK |
5793 | if (hw->mac_type == e1000_ich8lan) |
5794 | hash_value &= 0x3FF; | |
2d7edb92 | 5795 | |
1da177e4 LT |
5796 | return hash_value; |
5797 | } | |
5798 | ||
5799 | /****************************************************************************** | |
5800 | * Sets the bit in the multicast table corresponding to the hash value. | |
5801 | * | |
5802 | * hw - Struct containing variables accessed by shared code | |
5803 | * hash_value - Multicast address hash value | |
5804 | *****************************************************************************/ | |
5805 | void | |
5806 | e1000_mta_set(struct e1000_hw *hw, | |
5807 | uint32_t hash_value) | |
5808 | { | |
5809 | uint32_t hash_bit, hash_reg; | |
5810 | uint32_t mta; | |
5811 | uint32_t temp; | |
5812 | ||
5813 | /* The MTA is a register array of 128 32-bit registers. | |
5814 | * It is treated like an array of 4096 bits. We want to set | |
5815 | * bit BitArray[hash_value]. So we figure out what register | |
5816 | * the bit is in, read it, OR in the new bit, then write | |
5817 | * back the new value. The register is determined by the | |
5818 | * upper 7 bits of the hash value and the bit within that | |
5819 | * register are determined by the lower 5 bits of the value. | |
5820 | */ | |
5821 | hash_reg = (hash_value >> 5) & 0x7F; | |
cd94dd0b AK |
5822 | if (hw->mac_type == e1000_ich8lan) |
5823 | hash_reg &= 0x1F; | |
1da177e4 LT |
5824 | hash_bit = hash_value & 0x1F; |
5825 | ||
5826 | mta = E1000_READ_REG_ARRAY(hw, MTA, hash_reg); | |
5827 | ||
5828 | mta |= (1 << hash_bit); | |
5829 | ||
5830 | /* If we are on an 82544 and we are trying to write an odd offset | |
5831 | * in the MTA, save off the previous entry before writing and | |
5832 | * restore the old value after writing. | |
5833 | */ | |
8fc897b0 | 5834 | if ((hw->mac_type == e1000_82544) && ((hash_reg & 0x1) == 1)) { |
1da177e4 LT |
5835 | temp = E1000_READ_REG_ARRAY(hw, MTA, (hash_reg - 1)); |
5836 | E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); | |
4ca213a6 | 5837 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5838 | E1000_WRITE_REG_ARRAY(hw, MTA, (hash_reg - 1), temp); |
4ca213a6 | 5839 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5840 | } else { |
5841 | E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); | |
4ca213a6 | 5842 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5843 | } |
5844 | } | |
5845 | ||
5846 | /****************************************************************************** | |
5847 | * Puts an ethernet address into a receive address register. | |
5848 | * | |
5849 | * hw - Struct containing variables accessed by shared code | |
5850 | * addr - Address to put into receive address register | |
5851 | * index - Receive address register to write | |
5852 | *****************************************************************************/ | |
5853 | void | |
5854 | e1000_rar_set(struct e1000_hw *hw, | |
5855 | uint8_t *addr, | |
5856 | uint32_t index) | |
5857 | { | |
5858 | uint32_t rar_low, rar_high; | |
5859 | ||
5860 | /* HW expects these in little endian so we reverse the byte order | |
5861 | * from network order (big endian) to little endian | |
5862 | */ | |
5863 | rar_low = ((uint32_t) addr[0] | | |
5864 | ((uint32_t) addr[1] << 8) | | |
5865 | ((uint32_t) addr[2] << 16) | ((uint32_t) addr[3] << 24)); | |
8df06e50 | 5866 | rar_high = ((uint32_t) addr[4] | ((uint32_t) addr[5] << 8)); |
1da177e4 | 5867 | |
8df06e50 JK |
5868 | /* Disable Rx and flush all Rx frames before enabling RSS to avoid Rx |
5869 | * unit hang. | |
5870 | * | |
5871 | * Description: | |
5872 | * If there are any Rx frames queued up or otherwise present in the HW | |
5873 | * before RSS is enabled, and then we enable RSS, the HW Rx unit will | |
5874 | * hang. To work around this issue, we have to disable receives and | |
5875 | * flush out all Rx frames before we enable RSS. To do so, we modify we | |
5876 | * redirect all Rx traffic to manageability and then reset the HW. | |
5877 | * This flushes away Rx frames, and (since the redirections to | |
5878 | * manageability persists across resets) keeps new ones from coming in | |
5879 | * while we work. Then, we clear the Address Valid AV bit for all MAC | |
5880 | * addresses and undo the re-direction to manageability. | |
5881 | * Now, frames are coming in again, but the MAC won't accept them, so | |
5882 | * far so good. We now proceed to initialize RSS (if necessary) and | |
5883 | * configure the Rx unit. Last, we re-enable the AV bits and continue | |
5884 | * on our merry way. | |
5885 | */ | |
5886 | switch (hw->mac_type) { | |
5887 | case e1000_82571: | |
5888 | case e1000_82572: | |
6418ecc6 | 5889 | case e1000_80003es2lan: |
8df06e50 JK |
5890 | if (hw->leave_av_bit_off == TRUE) |
5891 | break; | |
5892 | default: | |
5893 | /* Indicate to hardware the Address is Valid. */ | |
5894 | rar_high |= E1000_RAH_AV; | |
5895 | break; | |
5896 | } | |
1da177e4 LT |
5897 | |
5898 | E1000_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low); | |
4ca213a6 | 5899 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5900 | E1000_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high); |
4ca213a6 | 5901 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5902 | } |
5903 | ||
5904 | /****************************************************************************** | |
5905 | * Writes a value to the specified offset in the VLAN filter table. | |
5906 | * | |
5907 | * hw - Struct containing variables accessed by shared code | |
5908 | * offset - Offset in VLAN filer table to write | |
5909 | * value - Value to write into VLAN filter table | |
5910 | *****************************************************************************/ | |
5911 | void | |
5912 | e1000_write_vfta(struct e1000_hw *hw, | |
5913 | uint32_t offset, | |
5914 | uint32_t value) | |
5915 | { | |
5916 | uint32_t temp; | |
5917 | ||
cd94dd0b AK |
5918 | if (hw->mac_type == e1000_ich8lan) |
5919 | return; | |
5920 | ||
5921 | if ((hw->mac_type == e1000_82544) && ((offset & 0x1) == 1)) { | |
1da177e4 LT |
5922 | temp = E1000_READ_REG_ARRAY(hw, VFTA, (offset - 1)); |
5923 | E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); | |
4ca213a6 | 5924 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5925 | E1000_WRITE_REG_ARRAY(hw, VFTA, (offset - 1), temp); |
4ca213a6 | 5926 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5927 | } else { |
5928 | E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); | |
4ca213a6 | 5929 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5930 | } |
5931 | } | |
5932 | ||
5933 | /****************************************************************************** | |
5934 | * Clears the VLAN filer table | |
5935 | * | |
5936 | * hw - Struct containing variables accessed by shared code | |
5937 | *****************************************************************************/ | |
3ad2cc67 | 5938 | static void |
1da177e4 LT |
5939 | e1000_clear_vfta(struct e1000_hw *hw) |
5940 | { | |
5941 | uint32_t offset; | |
2d7edb92 MC |
5942 | uint32_t vfta_value = 0; |
5943 | uint32_t vfta_offset = 0; | |
5944 | uint32_t vfta_bit_in_reg = 0; | |
5945 | ||
cd94dd0b AK |
5946 | if (hw->mac_type == e1000_ich8lan) |
5947 | return; | |
5948 | ||
2d7edb92 MC |
5949 | if (hw->mac_type == e1000_82573) { |
5950 | if (hw->mng_cookie.vlan_id != 0) { | |
5951 | /* The VFTA is a 4096b bit-field, each identifying a single VLAN | |
5952 | * ID. The following operations determine which 32b entry | |
5953 | * (i.e. offset) into the array we want to set the VLAN ID | |
5954 | * (i.e. bit) of the manageability unit. */ | |
5955 | vfta_offset = (hw->mng_cookie.vlan_id >> | |
5956 | E1000_VFTA_ENTRY_SHIFT) & | |
5957 | E1000_VFTA_ENTRY_MASK; | |
5958 | vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id & | |
5959 | E1000_VFTA_ENTRY_BIT_SHIFT_MASK); | |
5960 | } | |
5961 | } | |
5962 | for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) { | |
5963 | /* If the offset we want to clear is the same offset of the | |
5964 | * manageability VLAN ID, then clear all bits except that of the | |
5965 | * manageability unit */ | |
5966 | vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0; | |
5967 | E1000_WRITE_REG_ARRAY(hw, VFTA, offset, vfta_value); | |
4ca213a6 | 5968 | E1000_WRITE_FLUSH(hw); |
2d7edb92 | 5969 | } |
1da177e4 LT |
5970 | } |
5971 | ||
3ad2cc67 | 5972 | static int32_t |
1da177e4 LT |
5973 | e1000_id_led_init(struct e1000_hw * hw) |
5974 | { | |
5975 | uint32_t ledctl; | |
5976 | const uint32_t ledctl_mask = 0x000000FF; | |
5977 | const uint32_t ledctl_on = E1000_LEDCTL_MODE_LED_ON; | |
5978 | const uint32_t ledctl_off = E1000_LEDCTL_MODE_LED_OFF; | |
5979 | uint16_t eeprom_data, i, temp; | |
5980 | const uint16_t led_mask = 0x0F; | |
5981 | ||
5982 | DEBUGFUNC("e1000_id_led_init"); | |
5983 | ||
8fc897b0 | 5984 | if (hw->mac_type < e1000_82540) { |
1da177e4 LT |
5985 | /* Nothing to do */ |
5986 | return E1000_SUCCESS; | |
5987 | } | |
5988 | ||
5989 | ledctl = E1000_READ_REG(hw, LEDCTL); | |
5990 | hw->ledctl_default = ledctl; | |
5991 | hw->ledctl_mode1 = hw->ledctl_default; | |
5992 | hw->ledctl_mode2 = hw->ledctl_default; | |
5993 | ||
8fc897b0 | 5994 | if (e1000_read_eeprom(hw, EEPROM_ID_LED_SETTINGS, 1, &eeprom_data) < 0) { |
1da177e4 LT |
5995 | DEBUGOUT("EEPROM Read Error\n"); |
5996 | return -E1000_ERR_EEPROM; | |
5997 | } | |
cd94dd0b AK |
5998 | |
5999 | if ((hw->mac_type == e1000_82573) && | |
6000 | (eeprom_data == ID_LED_RESERVED_82573)) | |
6001 | eeprom_data = ID_LED_DEFAULT_82573; | |
6002 | else if ((eeprom_data == ID_LED_RESERVED_0000) || | |
6003 | (eeprom_data == ID_LED_RESERVED_FFFF)) { | |
6004 | if (hw->mac_type == e1000_ich8lan) | |
6005 | eeprom_data = ID_LED_DEFAULT_ICH8LAN; | |
6006 | else | |
6007 | eeprom_data = ID_LED_DEFAULT; | |
6008 | } | |
6009 | for (i = 0; i < 4; i++) { | |
1da177e4 | 6010 | temp = (eeprom_data >> (i << 2)) & led_mask; |
8fc897b0 | 6011 | switch (temp) { |
1da177e4 LT |
6012 | case ID_LED_ON1_DEF2: |
6013 | case ID_LED_ON1_ON2: | |
6014 | case ID_LED_ON1_OFF2: | |
6015 | hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); | |
6016 | hw->ledctl_mode1 |= ledctl_on << (i << 3); | |
6017 | break; | |
6018 | case ID_LED_OFF1_DEF2: | |
6019 | case ID_LED_OFF1_ON2: | |
6020 | case ID_LED_OFF1_OFF2: | |
6021 | hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); | |
6022 | hw->ledctl_mode1 |= ledctl_off << (i << 3); | |
6023 | break; | |
6024 | default: | |
6025 | /* Do nothing */ | |
6026 | break; | |
6027 | } | |
8fc897b0 | 6028 | switch (temp) { |
1da177e4 LT |
6029 | case ID_LED_DEF1_ON2: |
6030 | case ID_LED_ON1_ON2: | |
6031 | case ID_LED_OFF1_ON2: | |
6032 | hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); | |
6033 | hw->ledctl_mode2 |= ledctl_on << (i << 3); | |
6034 | break; | |
6035 | case ID_LED_DEF1_OFF2: | |
6036 | case ID_LED_ON1_OFF2: | |
6037 | case ID_LED_OFF1_OFF2: | |
6038 | hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); | |
6039 | hw->ledctl_mode2 |= ledctl_off << (i << 3); | |
6040 | break; | |
6041 | default: | |
6042 | /* Do nothing */ | |
6043 | break; | |
6044 | } | |
6045 | } | |
6046 | return E1000_SUCCESS; | |
6047 | } | |
6048 | ||
6049 | /****************************************************************************** | |
6050 | * Prepares SW controlable LED for use and saves the current state of the LED. | |
6051 | * | |
6052 | * hw - Struct containing variables accessed by shared code | |
6053 | *****************************************************************************/ | |
6054 | int32_t | |
6055 | e1000_setup_led(struct e1000_hw *hw) | |
6056 | { | |
6057 | uint32_t ledctl; | |
6058 | int32_t ret_val = E1000_SUCCESS; | |
6059 | ||
6060 | DEBUGFUNC("e1000_setup_led"); | |
6061 | ||
8fc897b0 | 6062 | switch (hw->mac_type) { |
1da177e4 LT |
6063 | case e1000_82542_rev2_0: |
6064 | case e1000_82542_rev2_1: | |
6065 | case e1000_82543: | |
6066 | case e1000_82544: | |
6067 | /* No setup necessary */ | |
6068 | break; | |
6069 | case e1000_82541: | |
6070 | case e1000_82547: | |
6071 | case e1000_82541_rev_2: | |
6072 | case e1000_82547_rev_2: | |
6073 | /* Turn off PHY Smart Power Down (if enabled) */ | |
6074 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, | |
6075 | &hw->phy_spd_default); | |
8fc897b0 | 6076 | if (ret_val) |
1da177e4 LT |
6077 | return ret_val; |
6078 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, | |
6079 | (uint16_t)(hw->phy_spd_default & | |
6080 | ~IGP01E1000_GMII_SPD)); | |
8fc897b0 | 6081 | if (ret_val) |
1da177e4 LT |
6082 | return ret_val; |
6083 | /* Fall Through */ | |
6084 | default: | |
8fc897b0 | 6085 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6086 | ledctl = E1000_READ_REG(hw, LEDCTL); |
6087 | /* Save current LEDCTL settings */ | |
6088 | hw->ledctl_default = ledctl; | |
6089 | /* Turn off LED0 */ | |
6090 | ledctl &= ~(E1000_LEDCTL_LED0_IVRT | | |
6091 | E1000_LEDCTL_LED0_BLINK | | |
6092 | E1000_LEDCTL_LED0_MODE_MASK); | |
6093 | ledctl |= (E1000_LEDCTL_MODE_LED_OFF << | |
6094 | E1000_LEDCTL_LED0_MODE_SHIFT); | |
6095 | E1000_WRITE_REG(hw, LEDCTL, ledctl); | |
8fc897b0 | 6096 | } else if (hw->media_type == e1000_media_type_copper) |
1da177e4 LT |
6097 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode1); |
6098 | break; | |
6099 | } | |
6100 | ||
6101 | return E1000_SUCCESS; | |
6102 | } | |
6103 | ||
8fc897b0 | 6104 | |
f1b3a853 AK |
6105 | /****************************************************************************** |
6106 | * Used on 82571 and later Si that has LED blink bits. | |
6107 | * Callers must use their own timer and should have already called | |
6108 | * e1000_id_led_init() | |
6109 | * Call e1000_cleanup led() to stop blinking | |
6110 | * | |
6111 | * hw - Struct containing variables accessed by shared code | |
6112 | *****************************************************************************/ | |
6113 | int32_t | |
6114 | e1000_blink_led_start(struct e1000_hw *hw) | |
6115 | { | |
6116 | int16_t i; | |
6117 | uint32_t ledctl_blink = 0; | |
6118 | ||
6119 | DEBUGFUNC("e1000_id_led_blink_on"); | |
6120 | ||
6121 | if (hw->mac_type < e1000_82571) { | |
6122 | /* Nothing to do */ | |
6123 | return E1000_SUCCESS; | |
6124 | } | |
6125 | if (hw->media_type == e1000_media_type_fiber) { | |
6126 | /* always blink LED0 for PCI-E fiber */ | |
6127 | ledctl_blink = E1000_LEDCTL_LED0_BLINK | | |
6128 | (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT); | |
6129 | } else { | |
6130 | /* set the blink bit for each LED that's "on" (0x0E) in ledctl_mode2 */ | |
6131 | ledctl_blink = hw->ledctl_mode2; | |
6132 | for (i=0; i < 4; i++) | |
6133 | if (((hw->ledctl_mode2 >> (i * 8)) & 0xFF) == | |
6134 | E1000_LEDCTL_MODE_LED_ON) | |
6135 | ledctl_blink |= (E1000_LEDCTL_LED0_BLINK << (i * 8)); | |
6136 | } | |
6137 | ||
6138 | E1000_WRITE_REG(hw, LEDCTL, ledctl_blink); | |
6139 | ||
6140 | return E1000_SUCCESS; | |
6141 | } | |
6142 | ||
1da177e4 LT |
6143 | /****************************************************************************** |
6144 | * Restores the saved state of the SW controlable LED. | |
6145 | * | |
6146 | * hw - Struct containing variables accessed by shared code | |
6147 | *****************************************************************************/ | |
6148 | int32_t | |
6149 | e1000_cleanup_led(struct e1000_hw *hw) | |
6150 | { | |
6151 | int32_t ret_val = E1000_SUCCESS; | |
6152 | ||
6153 | DEBUGFUNC("e1000_cleanup_led"); | |
6154 | ||
8fc897b0 | 6155 | switch (hw->mac_type) { |
1da177e4 LT |
6156 | case e1000_82542_rev2_0: |
6157 | case e1000_82542_rev2_1: | |
6158 | case e1000_82543: | |
6159 | case e1000_82544: | |
6160 | /* No cleanup necessary */ | |
6161 | break; | |
6162 | case e1000_82541: | |
6163 | case e1000_82547: | |
6164 | case e1000_82541_rev_2: | |
6165 | case e1000_82547_rev_2: | |
6166 | /* Turn on PHY Smart Power Down (if previously enabled) */ | |
6167 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, | |
6168 | hw->phy_spd_default); | |
8fc897b0 | 6169 | if (ret_val) |
1da177e4 LT |
6170 | return ret_val; |
6171 | /* Fall Through */ | |
6172 | default: | |
cd94dd0b AK |
6173 | if (hw->phy_type == e1000_phy_ife) { |
6174 | e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0); | |
6175 | break; | |
6176 | } | |
1da177e4 LT |
6177 | /* Restore LEDCTL settings */ |
6178 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_default); | |
6179 | break; | |
6180 | } | |
6181 | ||
6182 | return E1000_SUCCESS; | |
6183 | } | |
6184 | ||
6185 | /****************************************************************************** | |
6186 | * Turns on the software controllable LED | |
6187 | * | |
6188 | * hw - Struct containing variables accessed by shared code | |
6189 | *****************************************************************************/ | |
6190 | int32_t | |
6191 | e1000_led_on(struct e1000_hw *hw) | |
6192 | { | |
6193 | uint32_t ctrl = E1000_READ_REG(hw, CTRL); | |
6194 | ||
6195 | DEBUGFUNC("e1000_led_on"); | |
6196 | ||
8fc897b0 | 6197 | switch (hw->mac_type) { |
1da177e4 LT |
6198 | case e1000_82542_rev2_0: |
6199 | case e1000_82542_rev2_1: | |
6200 | case e1000_82543: | |
6201 | /* Set SW Defineable Pin 0 to turn on the LED */ | |
6202 | ctrl |= E1000_CTRL_SWDPIN0; | |
6203 | ctrl |= E1000_CTRL_SWDPIO0; | |
6204 | break; | |
6205 | case e1000_82544: | |
8fc897b0 | 6206 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6207 | /* Set SW Defineable Pin 0 to turn on the LED */ |
6208 | ctrl |= E1000_CTRL_SWDPIN0; | |
6209 | ctrl |= E1000_CTRL_SWDPIO0; | |
6210 | } else { | |
6211 | /* Clear SW Defineable Pin 0 to turn on the LED */ | |
6212 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6213 | ctrl |= E1000_CTRL_SWDPIO0; | |
6214 | } | |
6215 | break; | |
6216 | default: | |
8fc897b0 | 6217 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6218 | /* Clear SW Defineable Pin 0 to turn on the LED */ |
6219 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6220 | ctrl |= E1000_CTRL_SWDPIO0; | |
cd94dd0b AK |
6221 | } else if (hw->phy_type == e1000_phy_ife) { |
6222 | e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, | |
6223 | (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON)); | |
6224 | } else if (hw->media_type == e1000_media_type_copper) { | |
1da177e4 LT |
6225 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode2); |
6226 | return E1000_SUCCESS; | |
6227 | } | |
6228 | break; | |
6229 | } | |
6230 | ||
6231 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
6232 | ||
6233 | return E1000_SUCCESS; | |
6234 | } | |
6235 | ||
6236 | /****************************************************************************** | |
6237 | * Turns off the software controllable LED | |
6238 | * | |
6239 | * hw - Struct containing variables accessed by shared code | |
6240 | *****************************************************************************/ | |
6241 | int32_t | |
6242 | e1000_led_off(struct e1000_hw *hw) | |
6243 | { | |
6244 | uint32_t ctrl = E1000_READ_REG(hw, CTRL); | |
6245 | ||
6246 | DEBUGFUNC("e1000_led_off"); | |
6247 | ||
8fc897b0 | 6248 | switch (hw->mac_type) { |
1da177e4 LT |
6249 | case e1000_82542_rev2_0: |
6250 | case e1000_82542_rev2_1: | |
6251 | case e1000_82543: | |
6252 | /* Clear SW Defineable Pin 0 to turn off the LED */ | |
6253 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6254 | ctrl |= E1000_CTRL_SWDPIO0; | |
6255 | break; | |
6256 | case e1000_82544: | |
8fc897b0 | 6257 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6258 | /* Clear SW Defineable Pin 0 to turn off the LED */ |
6259 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6260 | ctrl |= E1000_CTRL_SWDPIO0; | |
6261 | } else { | |
6262 | /* Set SW Defineable Pin 0 to turn off the LED */ | |
6263 | ctrl |= E1000_CTRL_SWDPIN0; | |
6264 | ctrl |= E1000_CTRL_SWDPIO0; | |
6265 | } | |
6266 | break; | |
6267 | default: | |
8fc897b0 | 6268 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6269 | /* Set SW Defineable Pin 0 to turn off the LED */ |
6270 | ctrl |= E1000_CTRL_SWDPIN0; | |
6271 | ctrl |= E1000_CTRL_SWDPIO0; | |
cd94dd0b AK |
6272 | } else if (hw->phy_type == e1000_phy_ife) { |
6273 | e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, | |
6274 | (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_OFF)); | |
6275 | } else if (hw->media_type == e1000_media_type_copper) { | |
1da177e4 LT |
6276 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode1); |
6277 | return E1000_SUCCESS; | |
6278 | } | |
6279 | break; | |
6280 | } | |
6281 | ||
6282 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
6283 | ||
6284 | return E1000_SUCCESS; | |
6285 | } | |
6286 | ||
6287 | /****************************************************************************** | |
6288 | * Clears all hardware statistics counters. | |
6289 | * | |
6290 | * hw - Struct containing variables accessed by shared code | |
6291 | *****************************************************************************/ | |
8fc897b0 | 6292 | void |
1da177e4 LT |
6293 | e1000_clear_hw_cntrs(struct e1000_hw *hw) |
6294 | { | |
6295 | volatile uint32_t temp; | |
6296 | ||
6297 | temp = E1000_READ_REG(hw, CRCERRS); | |
6298 | temp = E1000_READ_REG(hw, SYMERRS); | |
6299 | temp = E1000_READ_REG(hw, MPC); | |
6300 | temp = E1000_READ_REG(hw, SCC); | |
6301 | temp = E1000_READ_REG(hw, ECOL); | |
6302 | temp = E1000_READ_REG(hw, MCC); | |
6303 | temp = E1000_READ_REG(hw, LATECOL); | |
6304 | temp = E1000_READ_REG(hw, COLC); | |
6305 | temp = E1000_READ_REG(hw, DC); | |
6306 | temp = E1000_READ_REG(hw, SEC); | |
6307 | temp = E1000_READ_REG(hw, RLEC); | |
6308 | temp = E1000_READ_REG(hw, XONRXC); | |
6309 | temp = E1000_READ_REG(hw, XONTXC); | |
6310 | temp = E1000_READ_REG(hw, XOFFRXC); | |
6311 | temp = E1000_READ_REG(hw, XOFFTXC); | |
6312 | temp = E1000_READ_REG(hw, FCRUC); | |
cd94dd0b AK |
6313 | |
6314 | if (hw->mac_type != e1000_ich8lan) { | |
1da177e4 LT |
6315 | temp = E1000_READ_REG(hw, PRC64); |
6316 | temp = E1000_READ_REG(hw, PRC127); | |
6317 | temp = E1000_READ_REG(hw, PRC255); | |
6318 | temp = E1000_READ_REG(hw, PRC511); | |
6319 | temp = E1000_READ_REG(hw, PRC1023); | |
6320 | temp = E1000_READ_REG(hw, PRC1522); | |
cd94dd0b AK |
6321 | } |
6322 | ||
1da177e4 LT |
6323 | temp = E1000_READ_REG(hw, GPRC); |
6324 | temp = E1000_READ_REG(hw, BPRC); | |
6325 | temp = E1000_READ_REG(hw, MPRC); | |
6326 | temp = E1000_READ_REG(hw, GPTC); | |
6327 | temp = E1000_READ_REG(hw, GORCL); | |
6328 | temp = E1000_READ_REG(hw, GORCH); | |
6329 | temp = E1000_READ_REG(hw, GOTCL); | |
6330 | temp = E1000_READ_REG(hw, GOTCH); | |
6331 | temp = E1000_READ_REG(hw, RNBC); | |
6332 | temp = E1000_READ_REG(hw, RUC); | |
6333 | temp = E1000_READ_REG(hw, RFC); | |
6334 | temp = E1000_READ_REG(hw, ROC); | |
6335 | temp = E1000_READ_REG(hw, RJC); | |
6336 | temp = E1000_READ_REG(hw, TORL); | |
6337 | temp = E1000_READ_REG(hw, TORH); | |
6338 | temp = E1000_READ_REG(hw, TOTL); | |
6339 | temp = E1000_READ_REG(hw, TOTH); | |
6340 | temp = E1000_READ_REG(hw, TPR); | |
6341 | temp = E1000_READ_REG(hw, TPT); | |
cd94dd0b AK |
6342 | |
6343 | if (hw->mac_type != e1000_ich8lan) { | |
1da177e4 LT |
6344 | temp = E1000_READ_REG(hw, PTC64); |
6345 | temp = E1000_READ_REG(hw, PTC127); | |
6346 | temp = E1000_READ_REG(hw, PTC255); | |
6347 | temp = E1000_READ_REG(hw, PTC511); | |
6348 | temp = E1000_READ_REG(hw, PTC1023); | |
6349 | temp = E1000_READ_REG(hw, PTC1522); | |
cd94dd0b AK |
6350 | } |
6351 | ||
1da177e4 LT |
6352 | temp = E1000_READ_REG(hw, MPTC); |
6353 | temp = E1000_READ_REG(hw, BPTC); | |
6354 | ||
8fc897b0 | 6355 | if (hw->mac_type < e1000_82543) return; |
1da177e4 LT |
6356 | |
6357 | temp = E1000_READ_REG(hw, ALGNERRC); | |
6358 | temp = E1000_READ_REG(hw, RXERRC); | |
6359 | temp = E1000_READ_REG(hw, TNCRS); | |
6360 | temp = E1000_READ_REG(hw, CEXTERR); | |
6361 | temp = E1000_READ_REG(hw, TSCTC); | |
6362 | temp = E1000_READ_REG(hw, TSCTFC); | |
6363 | ||
8fc897b0 | 6364 | if (hw->mac_type <= e1000_82544) return; |
1da177e4 LT |
6365 | |
6366 | temp = E1000_READ_REG(hw, MGTPRC); | |
6367 | temp = E1000_READ_REG(hw, MGTPDC); | |
6368 | temp = E1000_READ_REG(hw, MGTPTC); | |
2d7edb92 | 6369 | |
8fc897b0 | 6370 | if (hw->mac_type <= e1000_82547_rev_2) return; |
2d7edb92 MC |
6371 | |
6372 | temp = E1000_READ_REG(hw, IAC); | |
6373 | temp = E1000_READ_REG(hw, ICRXOC); | |
cd94dd0b AK |
6374 | |
6375 | if (hw->mac_type == e1000_ich8lan) return; | |
6376 | ||
2d7edb92 MC |
6377 | temp = E1000_READ_REG(hw, ICRXPTC); |
6378 | temp = E1000_READ_REG(hw, ICRXATC); | |
6379 | temp = E1000_READ_REG(hw, ICTXPTC); | |
6380 | temp = E1000_READ_REG(hw, ICTXATC); | |
6381 | temp = E1000_READ_REG(hw, ICTXQEC); | |
6382 | temp = E1000_READ_REG(hw, ICTXQMTC); | |
6383 | temp = E1000_READ_REG(hw, ICRXDMTC); | |
1da177e4 LT |
6384 | } |
6385 | ||
6386 | /****************************************************************************** | |
6387 | * Resets Adaptive IFS to its default state. | |
6388 | * | |
6389 | * hw - Struct containing variables accessed by shared code | |
6390 | * | |
6391 | * Call this after e1000_init_hw. You may override the IFS defaults by setting | |
6392 | * hw->ifs_params_forced to TRUE. However, you must initialize hw-> | |
6393 | * current_ifs_val, ifs_min_val, ifs_max_val, ifs_step_size, and ifs_ratio | |
6394 | * before calling this function. | |
6395 | *****************************************************************************/ | |
6396 | void | |
6397 | e1000_reset_adaptive(struct e1000_hw *hw) | |
6398 | { | |
6399 | DEBUGFUNC("e1000_reset_adaptive"); | |
6400 | ||
8fc897b0 AK |
6401 | if (hw->adaptive_ifs) { |
6402 | if (!hw->ifs_params_forced) { | |
1da177e4 LT |
6403 | hw->current_ifs_val = 0; |
6404 | hw->ifs_min_val = IFS_MIN; | |
6405 | hw->ifs_max_val = IFS_MAX; | |
6406 | hw->ifs_step_size = IFS_STEP; | |
6407 | hw->ifs_ratio = IFS_RATIO; | |
6408 | } | |
6409 | hw->in_ifs_mode = FALSE; | |
6410 | E1000_WRITE_REG(hw, AIT, 0); | |
6411 | } else { | |
6412 | DEBUGOUT("Not in Adaptive IFS mode!\n"); | |
6413 | } | |
6414 | } | |
6415 | ||
6416 | /****************************************************************************** | |
6417 | * Called during the callback/watchdog routine to update IFS value based on | |
6418 | * the ratio of transmits to collisions. | |
6419 | * | |
6420 | * hw - Struct containing variables accessed by shared code | |
6421 | * tx_packets - Number of transmits since last callback | |
6422 | * total_collisions - Number of collisions since last callback | |
6423 | *****************************************************************************/ | |
6424 | void | |
6425 | e1000_update_adaptive(struct e1000_hw *hw) | |
6426 | { | |
6427 | DEBUGFUNC("e1000_update_adaptive"); | |
6428 | ||
8fc897b0 AK |
6429 | if (hw->adaptive_ifs) { |
6430 | if ((hw->collision_delta * hw->ifs_ratio) > hw->tx_packet_delta) { | |
6431 | if (hw->tx_packet_delta > MIN_NUM_XMITS) { | |
1da177e4 | 6432 | hw->in_ifs_mode = TRUE; |
8fc897b0 AK |
6433 | if (hw->current_ifs_val < hw->ifs_max_val) { |
6434 | if (hw->current_ifs_val == 0) | |
1da177e4 LT |
6435 | hw->current_ifs_val = hw->ifs_min_val; |
6436 | else | |
6437 | hw->current_ifs_val += hw->ifs_step_size; | |
6438 | E1000_WRITE_REG(hw, AIT, hw->current_ifs_val); | |
6439 | } | |
6440 | } | |
6441 | } else { | |
8fc897b0 | 6442 | if (hw->in_ifs_mode && (hw->tx_packet_delta <= MIN_NUM_XMITS)) { |
1da177e4 LT |
6443 | hw->current_ifs_val = 0; |
6444 | hw->in_ifs_mode = FALSE; | |
6445 | E1000_WRITE_REG(hw, AIT, 0); | |
6446 | } | |
6447 | } | |
6448 | } else { | |
6449 | DEBUGOUT("Not in Adaptive IFS mode!\n"); | |
6450 | } | |
6451 | } | |
6452 | ||
6453 | /****************************************************************************** | |
6454 | * Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT | |
6455 | * | |
6456 | * hw - Struct containing variables accessed by shared code | |
6457 | * frame_len - The length of the frame in question | |
6458 | * mac_addr - The Ethernet destination address of the frame in question | |
6459 | *****************************************************************************/ | |
6460 | void | |
6461 | e1000_tbi_adjust_stats(struct e1000_hw *hw, | |
6462 | struct e1000_hw_stats *stats, | |
6463 | uint32_t frame_len, | |
6464 | uint8_t *mac_addr) | |
6465 | { | |
6466 | uint64_t carry_bit; | |
6467 | ||
6468 | /* First adjust the frame length. */ | |
6469 | frame_len--; | |
6470 | /* We need to adjust the statistics counters, since the hardware | |
6471 | * counters overcount this packet as a CRC error and undercount | |
6472 | * the packet as a good packet | |
6473 | */ | |
6474 | /* This packet should not be counted as a CRC error. */ | |
6475 | stats->crcerrs--; | |
6476 | /* This packet does count as a Good Packet Received. */ | |
6477 | stats->gprc++; | |
6478 | ||
6479 | /* Adjust the Good Octets received counters */ | |
6480 | carry_bit = 0x80000000 & stats->gorcl; | |
6481 | stats->gorcl += frame_len; | |
6482 | /* If the high bit of Gorcl (the low 32 bits of the Good Octets | |
6483 | * Received Count) was one before the addition, | |
6484 | * AND it is zero after, then we lost the carry out, | |
6485 | * need to add one to Gorch (Good Octets Received Count High). | |
6486 | * This could be simplified if all environments supported | |
6487 | * 64-bit integers. | |
6488 | */ | |
8fc897b0 | 6489 | if (carry_bit && ((stats->gorcl & 0x80000000) == 0)) |
1da177e4 LT |
6490 | stats->gorch++; |
6491 | /* Is this a broadcast or multicast? Check broadcast first, | |
6492 | * since the test for a multicast frame will test positive on | |
6493 | * a broadcast frame. | |
6494 | */ | |
8fc897b0 | 6495 | if ((mac_addr[0] == (uint8_t) 0xff) && (mac_addr[1] == (uint8_t) 0xff)) |
1da177e4 LT |
6496 | /* Broadcast packet */ |
6497 | stats->bprc++; | |
8fc897b0 | 6498 | else if (*mac_addr & 0x01) |
1da177e4 LT |
6499 | /* Multicast packet */ |
6500 | stats->mprc++; | |
6501 | ||
8fc897b0 | 6502 | if (frame_len == hw->max_frame_size) { |
1da177e4 LT |
6503 | /* In this case, the hardware has overcounted the number of |
6504 | * oversize frames. | |
6505 | */ | |
8fc897b0 | 6506 | if (stats->roc > 0) |
1da177e4 LT |
6507 | stats->roc--; |
6508 | } | |
6509 | ||
6510 | /* Adjust the bin counters when the extra byte put the frame in the | |
6511 | * wrong bin. Remember that the frame_len was adjusted above. | |
6512 | */ | |
8fc897b0 | 6513 | if (frame_len == 64) { |
1da177e4 LT |
6514 | stats->prc64++; |
6515 | stats->prc127--; | |
8fc897b0 | 6516 | } else if (frame_len == 127) { |
1da177e4 LT |
6517 | stats->prc127++; |
6518 | stats->prc255--; | |
8fc897b0 | 6519 | } else if (frame_len == 255) { |
1da177e4 LT |
6520 | stats->prc255++; |
6521 | stats->prc511--; | |
8fc897b0 | 6522 | } else if (frame_len == 511) { |
1da177e4 LT |
6523 | stats->prc511++; |
6524 | stats->prc1023--; | |
8fc897b0 | 6525 | } else if (frame_len == 1023) { |
1da177e4 LT |
6526 | stats->prc1023++; |
6527 | stats->prc1522--; | |
8fc897b0 | 6528 | } else if (frame_len == 1522) { |
1da177e4 LT |
6529 | stats->prc1522++; |
6530 | } | |
6531 | } | |
6532 | ||
6533 | /****************************************************************************** | |
6534 | * Gets the current PCI bus type, speed, and width of the hardware | |
6535 | * | |
6536 | * hw - Struct containing variables accessed by shared code | |
6537 | *****************************************************************************/ | |
6538 | void | |
6539 | e1000_get_bus_info(struct e1000_hw *hw) | |
6540 | { | |
6541 | uint32_t status; | |
6542 | ||
6543 | switch (hw->mac_type) { | |
6544 | case e1000_82542_rev2_0: | |
6545 | case e1000_82542_rev2_1: | |
6546 | hw->bus_type = e1000_bus_type_unknown; | |
6547 | hw->bus_speed = e1000_bus_speed_unknown; | |
6548 | hw->bus_width = e1000_bus_width_unknown; | |
6549 | break; | |
868d5309 | 6550 | case e1000_82572: |
2d7edb92 | 6551 | case e1000_82573: |
fd803241 JK |
6552 | hw->bus_type = e1000_bus_type_pci_express; |
6553 | hw->bus_speed = e1000_bus_speed_2500; | |
6554 | hw->bus_width = e1000_bus_width_pciex_1; | |
6555 | break; | |
6556 | case e1000_82571: | |
cd94dd0b | 6557 | case e1000_ich8lan: |
6418ecc6 | 6558 | case e1000_80003es2lan: |
2d7edb92 MC |
6559 | hw->bus_type = e1000_bus_type_pci_express; |
6560 | hw->bus_speed = e1000_bus_speed_2500; | |
6561 | hw->bus_width = e1000_bus_width_pciex_4; | |
6562 | break; | |
1da177e4 LT |
6563 | default: |
6564 | status = E1000_READ_REG(hw, STATUS); | |
6565 | hw->bus_type = (status & E1000_STATUS_PCIX_MODE) ? | |
6566 | e1000_bus_type_pcix : e1000_bus_type_pci; | |
6567 | ||
8fc897b0 | 6568 | if (hw->device_id == E1000_DEV_ID_82546EB_QUAD_COPPER) { |
1da177e4 LT |
6569 | hw->bus_speed = (hw->bus_type == e1000_bus_type_pci) ? |
6570 | e1000_bus_speed_66 : e1000_bus_speed_120; | |
8fc897b0 | 6571 | } else if (hw->bus_type == e1000_bus_type_pci) { |
1da177e4 LT |
6572 | hw->bus_speed = (status & E1000_STATUS_PCI66) ? |
6573 | e1000_bus_speed_66 : e1000_bus_speed_33; | |
6574 | } else { | |
6575 | switch (status & E1000_STATUS_PCIX_SPEED) { | |
6576 | case E1000_STATUS_PCIX_SPEED_66: | |
6577 | hw->bus_speed = e1000_bus_speed_66; | |
6578 | break; | |
6579 | case E1000_STATUS_PCIX_SPEED_100: | |
6580 | hw->bus_speed = e1000_bus_speed_100; | |
6581 | break; | |
6582 | case E1000_STATUS_PCIX_SPEED_133: | |
6583 | hw->bus_speed = e1000_bus_speed_133; | |
6584 | break; | |
6585 | default: | |
6586 | hw->bus_speed = e1000_bus_speed_reserved; | |
6587 | break; | |
6588 | } | |
6589 | } | |
6590 | hw->bus_width = (status & E1000_STATUS_BUS64) ? | |
6591 | e1000_bus_width_64 : e1000_bus_width_32; | |
6592 | break; | |
6593 | } | |
6594 | } | |
6595 | /****************************************************************************** | |
6596 | * Reads a value from one of the devices registers using port I/O (as opposed | |
6597 | * memory mapped I/O). Only 82544 and newer devices support port I/O. | |
6598 | * | |
6599 | * hw - Struct containing variables accessed by shared code | |
6600 | * offset - offset to read from | |
6601 | *****************************************************************************/ | |
e4c780b1 | 6602 | #if 0 |
1da177e4 LT |
6603 | uint32_t |
6604 | e1000_read_reg_io(struct e1000_hw *hw, | |
6605 | uint32_t offset) | |
6606 | { | |
6607 | unsigned long io_addr = hw->io_base; | |
6608 | unsigned long io_data = hw->io_base + 4; | |
6609 | ||
6610 | e1000_io_write(hw, io_addr, offset); | |
6611 | return e1000_io_read(hw, io_data); | |
6612 | } | |
e4c780b1 | 6613 | #endif /* 0 */ |
1da177e4 LT |
6614 | |
6615 | /****************************************************************************** | |
6616 | * Writes a value to one of the devices registers using port I/O (as opposed to | |
6617 | * memory mapped I/O). Only 82544 and newer devices support port I/O. | |
6618 | * | |
6619 | * hw - Struct containing variables accessed by shared code | |
6620 | * offset - offset to write to | |
6621 | * value - value to write | |
6622 | *****************************************************************************/ | |
3ad2cc67 | 6623 | static void |
1da177e4 LT |
6624 | e1000_write_reg_io(struct e1000_hw *hw, |
6625 | uint32_t offset, | |
6626 | uint32_t value) | |
6627 | { | |
6628 | unsigned long io_addr = hw->io_base; | |
6629 | unsigned long io_data = hw->io_base + 4; | |
6630 | ||
6631 | e1000_io_write(hw, io_addr, offset); | |
6632 | e1000_io_write(hw, io_data, value); | |
6633 | } | |
6634 | ||
6635 | ||
6636 | /****************************************************************************** | |
6637 | * Estimates the cable length. | |
6638 | * | |
6639 | * hw - Struct containing variables accessed by shared code | |
6640 | * min_length - The estimated minimum length | |
6641 | * max_length - The estimated maximum length | |
6642 | * | |
6643 | * returns: - E1000_ERR_XXX | |
6644 | * E1000_SUCCESS | |
6645 | * | |
6646 | * This function always returns a ranged length (minimum & maximum). | |
6647 | * So for M88 phy's, this function interprets the one value returned from the | |
6648 | * register to the minimum and maximum range. | |
6649 | * For IGP phy's, the function calculates the range by the AGC registers. | |
6650 | *****************************************************************************/ | |
3ad2cc67 | 6651 | static int32_t |
1da177e4 LT |
6652 | e1000_get_cable_length(struct e1000_hw *hw, |
6653 | uint16_t *min_length, | |
6654 | uint16_t *max_length) | |
6655 | { | |
6656 | int32_t ret_val; | |
6657 | uint16_t agc_value = 0; | |
1da177e4 LT |
6658 | uint16_t i, phy_data; |
6659 | uint16_t cable_length; | |
6660 | ||
6661 | DEBUGFUNC("e1000_get_cable_length"); | |
6662 | ||
6663 | *min_length = *max_length = 0; | |
6664 | ||
6665 | /* Use old method for Phy older than IGP */ | |
8fc897b0 | 6666 | if (hw->phy_type == e1000_phy_m88) { |
2d7edb92 | 6667 | |
1da177e4 LT |
6668 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, |
6669 | &phy_data); | |
8fc897b0 | 6670 | if (ret_val) |
1da177e4 LT |
6671 | return ret_val; |
6672 | cable_length = (phy_data & M88E1000_PSSR_CABLE_LENGTH) >> | |
6673 | M88E1000_PSSR_CABLE_LENGTH_SHIFT; | |
6674 | ||
6675 | /* Convert the enum value to ranged values */ | |
6676 | switch (cable_length) { | |
6677 | case e1000_cable_length_50: | |
6678 | *min_length = 0; | |
6679 | *max_length = e1000_igp_cable_length_50; | |
6680 | break; | |
6681 | case e1000_cable_length_50_80: | |
6682 | *min_length = e1000_igp_cable_length_50; | |
6683 | *max_length = e1000_igp_cable_length_80; | |
6684 | break; | |
6685 | case e1000_cable_length_80_110: | |
6686 | *min_length = e1000_igp_cable_length_80; | |
6687 | *max_length = e1000_igp_cable_length_110; | |
6688 | break; | |
6689 | case e1000_cable_length_110_140: | |
6690 | *min_length = e1000_igp_cable_length_110; | |
6691 | *max_length = e1000_igp_cable_length_140; | |
6692 | break; | |
6693 | case e1000_cable_length_140: | |
6694 | *min_length = e1000_igp_cable_length_140; | |
6695 | *max_length = e1000_igp_cable_length_170; | |
6696 | break; | |
6697 | default: | |
6698 | return -E1000_ERR_PHY; | |
6699 | break; | |
6700 | } | |
6418ecc6 JK |
6701 | } else if (hw->phy_type == e1000_phy_gg82563) { |
6702 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, | |
6703 | &phy_data); | |
6704 | if (ret_val) | |
6705 | return ret_val; | |
6706 | cable_length = phy_data & GG82563_DSPD_CABLE_LENGTH; | |
6707 | ||
6708 | switch (cable_length) { | |
6709 | case e1000_gg_cable_length_60: | |
6710 | *min_length = 0; | |
6711 | *max_length = e1000_igp_cable_length_60; | |
6712 | break; | |
6713 | case e1000_gg_cable_length_60_115: | |
6714 | *min_length = e1000_igp_cable_length_60; | |
6715 | *max_length = e1000_igp_cable_length_115; | |
6716 | break; | |
6717 | case e1000_gg_cable_length_115_150: | |
6718 | *min_length = e1000_igp_cable_length_115; | |
6719 | *max_length = e1000_igp_cable_length_150; | |
6720 | break; | |
6721 | case e1000_gg_cable_length_150: | |
6722 | *min_length = e1000_igp_cable_length_150; | |
6723 | *max_length = e1000_igp_cable_length_180; | |
6724 | break; | |
6725 | default: | |
6726 | return -E1000_ERR_PHY; | |
6727 | break; | |
6728 | } | |
8fc897b0 | 6729 | } else if (hw->phy_type == e1000_phy_igp) { /* For IGP PHY */ |
cd94dd0b AK |
6730 | uint16_t cur_agc_value; |
6731 | uint16_t min_agc_value = IGP01E1000_AGC_LENGTH_TABLE_SIZE; | |
1da177e4 LT |
6732 | uint16_t agc_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = |
6733 | {IGP01E1000_PHY_AGC_A, | |
6734 | IGP01E1000_PHY_AGC_B, | |
6735 | IGP01E1000_PHY_AGC_C, | |
6736 | IGP01E1000_PHY_AGC_D}; | |
6737 | /* Read the AGC registers for all channels */ | |
8fc897b0 | 6738 | for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { |
1da177e4 LT |
6739 | |
6740 | ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); | |
8fc897b0 | 6741 | if (ret_val) |
1da177e4 LT |
6742 | return ret_val; |
6743 | ||
cd94dd0b | 6744 | cur_agc_value = phy_data >> IGP01E1000_AGC_LENGTH_SHIFT; |
1da177e4 | 6745 | |
cd94dd0b AK |
6746 | /* Value bound check. */ |
6747 | if ((cur_agc_value >= IGP01E1000_AGC_LENGTH_TABLE_SIZE - 1) || | |
6748 | (cur_agc_value == 0)) | |
1da177e4 LT |
6749 | return -E1000_ERR_PHY; |
6750 | ||
cd94dd0b | 6751 | agc_value += cur_agc_value; |
1da177e4 LT |
6752 | |
6753 | /* Update minimal AGC value. */ | |
cd94dd0b AK |
6754 | if (min_agc_value > cur_agc_value) |
6755 | min_agc_value = cur_agc_value; | |
1da177e4 LT |
6756 | } |
6757 | ||
6758 | /* Remove the minimal AGC result for length < 50m */ | |
cd94dd0b AK |
6759 | if (agc_value < IGP01E1000_PHY_CHANNEL_NUM * e1000_igp_cable_length_50) { |
6760 | agc_value -= min_agc_value; | |
1da177e4 LT |
6761 | |
6762 | /* Get the average length of the remaining 3 channels */ | |
6763 | agc_value /= (IGP01E1000_PHY_CHANNEL_NUM - 1); | |
6764 | } else { | |
6765 | /* Get the average length of all the 4 channels. */ | |
6766 | agc_value /= IGP01E1000_PHY_CHANNEL_NUM; | |
6767 | } | |
6768 | ||
6769 | /* Set the range of the calculated length. */ | |
6770 | *min_length = ((e1000_igp_cable_length_table[agc_value] - | |
6771 | IGP01E1000_AGC_RANGE) > 0) ? | |
6772 | (e1000_igp_cable_length_table[agc_value] - | |
6773 | IGP01E1000_AGC_RANGE) : 0; | |
6774 | *max_length = e1000_igp_cable_length_table[agc_value] + | |
6775 | IGP01E1000_AGC_RANGE; | |
cd94dd0b AK |
6776 | } else if (hw->phy_type == e1000_phy_igp_2 || |
6777 | hw->phy_type == e1000_phy_igp_3) { | |
6778 | uint16_t cur_agc_index, max_agc_index = 0; | |
6779 | uint16_t min_agc_index = IGP02E1000_AGC_LENGTH_TABLE_SIZE - 1; | |
868d5309 MC |
6780 | uint16_t agc_reg_array[IGP02E1000_PHY_CHANNEL_NUM] = |
6781 | {IGP02E1000_PHY_AGC_A, | |
6782 | IGP02E1000_PHY_AGC_B, | |
6783 | IGP02E1000_PHY_AGC_C, | |
6784 | IGP02E1000_PHY_AGC_D}; | |
6785 | /* Read the AGC registers for all channels */ | |
6786 | for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) { | |
6787 | ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); | |
6788 | if (ret_val) | |
6789 | return ret_val; | |
6790 | ||
8fc897b0 | 6791 | /* Getting bits 15:9, which represent the combination of course and |
868d5309 MC |
6792 | * fine gain values. The result is a number that can be put into |
6793 | * the lookup table to obtain the approximate cable length. */ | |
cd94dd0b AK |
6794 | cur_agc_index = (phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) & |
6795 | IGP02E1000_AGC_LENGTH_MASK; | |
868d5309 | 6796 | |
cd94dd0b AK |
6797 | /* Array index bound check. */ |
6798 | if ((cur_agc_index >= IGP02E1000_AGC_LENGTH_TABLE_SIZE) || | |
6799 | (cur_agc_index == 0)) | |
6800 | return -E1000_ERR_PHY; | |
868d5309 | 6801 | |
cd94dd0b AK |
6802 | /* Remove min & max AGC values from calculation. */ |
6803 | if (e1000_igp_2_cable_length_table[min_agc_index] > | |
6804 | e1000_igp_2_cable_length_table[cur_agc_index]) | |
6805 | min_agc_index = cur_agc_index; | |
6806 | if (e1000_igp_2_cable_length_table[max_agc_index] < | |
6807 | e1000_igp_2_cable_length_table[cur_agc_index]) | |
6808 | max_agc_index = cur_agc_index; | |
6809 | ||
6810 | agc_value += e1000_igp_2_cable_length_table[cur_agc_index]; | |
868d5309 MC |
6811 | } |
6812 | ||
cd94dd0b AK |
6813 | agc_value -= (e1000_igp_2_cable_length_table[min_agc_index] + |
6814 | e1000_igp_2_cable_length_table[max_agc_index]); | |
868d5309 MC |
6815 | agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2); |
6816 | ||
6817 | /* Calculate cable length with the error range of +/- 10 meters. */ | |
6818 | *min_length = ((agc_value - IGP02E1000_AGC_RANGE) > 0) ? | |
6819 | (agc_value - IGP02E1000_AGC_RANGE) : 0; | |
6820 | *max_length = agc_value + IGP02E1000_AGC_RANGE; | |
1da177e4 LT |
6821 | } |
6822 | ||
6823 | return E1000_SUCCESS; | |
6824 | } | |
6825 | ||
6826 | /****************************************************************************** | |
6827 | * Check the cable polarity | |
6828 | * | |
6829 | * hw - Struct containing variables accessed by shared code | |
6830 | * polarity - output parameter : 0 - Polarity is not reversed | |
6831 | * 1 - Polarity is reversed. | |
6832 | * | |
6833 | * returns: - E1000_ERR_XXX | |
6834 | * E1000_SUCCESS | |
6835 | * | |
6836 | * For phy's older then IGP, this function simply reads the polarity bit in the | |
6837 | * Phy Status register. For IGP phy's, this bit is valid only if link speed is | |
6838 | * 10 Mbps. If the link speed is 100 Mbps there is no polarity so this bit will | |
6839 | * return 0. If the link speed is 1000 Mbps the polarity status is in the | |
6840 | * IGP01E1000_PHY_PCS_INIT_REG. | |
6841 | *****************************************************************************/ | |
3ad2cc67 | 6842 | static int32_t |
1da177e4 LT |
6843 | e1000_check_polarity(struct e1000_hw *hw, |
6844 | uint16_t *polarity) | |
6845 | { | |
6846 | int32_t ret_val; | |
6847 | uint16_t phy_data; | |
6848 | ||
6849 | DEBUGFUNC("e1000_check_polarity"); | |
6850 | ||
6418ecc6 JK |
6851 | if ((hw->phy_type == e1000_phy_m88) || |
6852 | (hw->phy_type == e1000_phy_gg82563)) { | |
1da177e4 LT |
6853 | /* return the Polarity bit in the Status register. */ |
6854 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, | |
6855 | &phy_data); | |
8fc897b0 | 6856 | if (ret_val) |
1da177e4 LT |
6857 | return ret_val; |
6858 | *polarity = (phy_data & M88E1000_PSSR_REV_POLARITY) >> | |
6859 | M88E1000_PSSR_REV_POLARITY_SHIFT; | |
cd94dd0b AK |
6860 | } else if (hw->phy_type == e1000_phy_igp || |
6861 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 6862 | hw->phy_type == e1000_phy_igp_2) { |
1da177e4 LT |
6863 | /* Read the Status register to check the speed */ |
6864 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, | |
6865 | &phy_data); | |
8fc897b0 | 6866 | if (ret_val) |
1da177e4 LT |
6867 | return ret_val; |
6868 | ||
6869 | /* If speed is 1000 Mbps, must read the IGP01E1000_PHY_PCS_INIT_REG to | |
6870 | * find the polarity status */ | |
8fc897b0 | 6871 | if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == |
1da177e4 LT |
6872 | IGP01E1000_PSSR_SPEED_1000MBPS) { |
6873 | ||
6874 | /* Read the GIG initialization PCS register (0x00B4) */ | |
6875 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG, | |
6876 | &phy_data); | |
8fc897b0 | 6877 | if (ret_val) |
1da177e4 LT |
6878 | return ret_val; |
6879 | ||
6880 | /* Check the polarity bits */ | |
6881 | *polarity = (phy_data & IGP01E1000_PHY_POLARITY_MASK) ? 1 : 0; | |
6882 | } else { | |
6883 | /* For 10 Mbps, read the polarity bit in the status register. (for | |
6884 | * 100 Mbps this bit is always 0) */ | |
6885 | *polarity = phy_data & IGP01E1000_PSSR_POLARITY_REVERSED; | |
6886 | } | |
cd94dd0b AK |
6887 | } else if (hw->phy_type == e1000_phy_ife) { |
6888 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_EXTENDED_STATUS_CONTROL, | |
6889 | &phy_data); | |
6890 | if (ret_val) | |
6891 | return ret_val; | |
6892 | *polarity = (phy_data & IFE_PESC_POLARITY_REVERSED) >> | |
6893 | IFE_PESC_POLARITY_REVERSED_SHIFT; | |
1da177e4 LT |
6894 | } |
6895 | return E1000_SUCCESS; | |
6896 | } | |
6897 | ||
6898 | /****************************************************************************** | |
6899 | * Check if Downshift occured | |
6900 | * | |
6901 | * hw - Struct containing variables accessed by shared code | |
6902 | * downshift - output parameter : 0 - No Downshift ocured. | |
6903 | * 1 - Downshift ocured. | |
6904 | * | |
6905 | * returns: - E1000_ERR_XXX | |
76c224bc | 6906 | * E1000_SUCCESS |
1da177e4 LT |
6907 | * |
6908 | * For phy's older then IGP, this function reads the Downshift bit in the Phy | |
6909 | * Specific Status register. For IGP phy's, it reads the Downgrade bit in the | |
6910 | * Link Health register. In IGP this bit is latched high, so the driver must | |
6911 | * read it immediately after link is established. | |
6912 | *****************************************************************************/ | |
3ad2cc67 | 6913 | static int32_t |
1da177e4 LT |
6914 | e1000_check_downshift(struct e1000_hw *hw) |
6915 | { | |
6916 | int32_t ret_val; | |
6917 | uint16_t phy_data; | |
6918 | ||
6919 | DEBUGFUNC("e1000_check_downshift"); | |
6920 | ||
cd94dd0b AK |
6921 | if (hw->phy_type == e1000_phy_igp || |
6922 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 6923 | hw->phy_type == e1000_phy_igp_2) { |
1da177e4 LT |
6924 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_LINK_HEALTH, |
6925 | &phy_data); | |
8fc897b0 | 6926 | if (ret_val) |
1da177e4 LT |
6927 | return ret_val; |
6928 | ||
6929 | hw->speed_downgraded = (phy_data & IGP01E1000_PLHR_SS_DOWNGRADE) ? 1 : 0; | |
6418ecc6 JK |
6930 | } else if ((hw->phy_type == e1000_phy_m88) || |
6931 | (hw->phy_type == e1000_phy_gg82563)) { | |
1da177e4 LT |
6932 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, |
6933 | &phy_data); | |
8fc897b0 | 6934 | if (ret_val) |
1da177e4 LT |
6935 | return ret_val; |
6936 | ||
6937 | hw->speed_downgraded = (phy_data & M88E1000_PSSR_DOWNSHIFT) >> | |
6938 | M88E1000_PSSR_DOWNSHIFT_SHIFT; | |
cd94dd0b AK |
6939 | } else if (hw->phy_type == e1000_phy_ife) { |
6940 | /* e1000_phy_ife supports 10/100 speed only */ | |
6941 | hw->speed_downgraded = FALSE; | |
1da177e4 | 6942 | } |
2d7edb92 | 6943 | |
1da177e4 LT |
6944 | return E1000_SUCCESS; |
6945 | } | |
6946 | ||
6947 | /***************************************************************************** | |
6948 | * | |
6949 | * 82541_rev_2 & 82547_rev_2 have the capability to configure the DSP when a | |
6950 | * gigabit link is achieved to improve link quality. | |
6951 | * | |
6952 | * hw: Struct containing variables accessed by shared code | |
6953 | * | |
6954 | * returns: - E1000_ERR_PHY if fail to read/write the PHY | |
6955 | * E1000_SUCCESS at any other case. | |
6956 | * | |
6957 | ****************************************************************************/ | |
6958 | ||
3ad2cc67 | 6959 | static int32_t |
1da177e4 LT |
6960 | e1000_config_dsp_after_link_change(struct e1000_hw *hw, |
6961 | boolean_t link_up) | |
6962 | { | |
6963 | int32_t ret_val; | |
6964 | uint16_t phy_data, phy_saved_data, speed, duplex, i; | |
6965 | uint16_t dsp_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = | |
6966 | {IGP01E1000_PHY_AGC_PARAM_A, | |
6967 | IGP01E1000_PHY_AGC_PARAM_B, | |
6968 | IGP01E1000_PHY_AGC_PARAM_C, | |
6969 | IGP01E1000_PHY_AGC_PARAM_D}; | |
6970 | uint16_t min_length, max_length; | |
6971 | ||
6972 | DEBUGFUNC("e1000_config_dsp_after_link_change"); | |
6973 | ||
8fc897b0 | 6974 | if (hw->phy_type != e1000_phy_igp) |
1da177e4 LT |
6975 | return E1000_SUCCESS; |
6976 | ||
8fc897b0 | 6977 | if (link_up) { |
1da177e4 | 6978 | ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); |
8fc897b0 | 6979 | if (ret_val) { |
1da177e4 LT |
6980 | DEBUGOUT("Error getting link speed and duplex\n"); |
6981 | return ret_val; | |
6982 | } | |
6983 | ||
8fc897b0 | 6984 | if (speed == SPEED_1000) { |
1da177e4 | 6985 | |
cd94dd0b AK |
6986 | ret_val = e1000_get_cable_length(hw, &min_length, &max_length); |
6987 | if (ret_val) | |
6988 | return ret_val; | |
1da177e4 | 6989 | |
8fc897b0 | 6990 | if ((hw->dsp_config_state == e1000_dsp_config_enabled) && |
1da177e4 LT |
6991 | min_length >= e1000_igp_cable_length_50) { |
6992 | ||
8fc897b0 | 6993 | for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { |
1da177e4 LT |
6994 | ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], |
6995 | &phy_data); | |
8fc897b0 | 6996 | if (ret_val) |
1da177e4 LT |
6997 | return ret_val; |
6998 | ||
6999 | phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; | |
7000 | ||
7001 | ret_val = e1000_write_phy_reg(hw, dsp_reg_array[i], | |
7002 | phy_data); | |
8fc897b0 | 7003 | if (ret_val) |
1da177e4 LT |
7004 | return ret_val; |
7005 | } | |
7006 | hw->dsp_config_state = e1000_dsp_config_activated; | |
7007 | } | |
7008 | ||
8fc897b0 | 7009 | if ((hw->ffe_config_state == e1000_ffe_config_enabled) && |
1da177e4 LT |
7010 | (min_length < e1000_igp_cable_length_50)) { |
7011 | ||
7012 | uint16_t ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_20; | |
7013 | uint32_t idle_errs = 0; | |
7014 | ||
7015 | /* clear previous idle error counts */ | |
7016 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, | |
7017 | &phy_data); | |
8fc897b0 | 7018 | if (ret_val) |
1da177e4 LT |
7019 | return ret_val; |
7020 | ||
8fc897b0 | 7021 | for (i = 0; i < ffe_idle_err_timeout; i++) { |
1da177e4 LT |
7022 | udelay(1000); |
7023 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, | |
7024 | &phy_data); | |
8fc897b0 | 7025 | if (ret_val) |
1da177e4 LT |
7026 | return ret_val; |
7027 | ||
7028 | idle_errs += (phy_data & SR_1000T_IDLE_ERROR_CNT); | |
8fc897b0 | 7029 | if (idle_errs > SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT) { |
1da177e4 LT |
7030 | hw->ffe_config_state = e1000_ffe_config_active; |
7031 | ||
7032 | ret_val = e1000_write_phy_reg(hw, | |
7033 | IGP01E1000_PHY_DSP_FFE, | |
7034 | IGP01E1000_PHY_DSP_FFE_CM_CP); | |
8fc897b0 | 7035 | if (ret_val) |
1da177e4 LT |
7036 | return ret_val; |
7037 | break; | |
7038 | } | |
7039 | ||
8fc897b0 | 7040 | if (idle_errs) |
1da177e4 LT |
7041 | ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_100; |
7042 | } | |
7043 | } | |
7044 | } | |
7045 | } else { | |
8fc897b0 | 7046 | if (hw->dsp_config_state == e1000_dsp_config_activated) { |
1da177e4 LT |
7047 | /* Save off the current value of register 0x2F5B to be restored at |
7048 | * the end of the routines. */ | |
7049 | ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); | |
7050 | ||
8fc897b0 | 7051 | if (ret_val) |
1da177e4 LT |
7052 | return ret_val; |
7053 | ||
7054 | /* Disable the PHY transmitter */ | |
7055 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); | |
7056 | ||
8fc897b0 | 7057 | if (ret_val) |
1da177e4 LT |
7058 | return ret_val; |
7059 | ||
f8ec4733 | 7060 | mdelay(20); |
1da177e4 LT |
7061 | |
7062 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7063 | IGP01E1000_IEEE_FORCE_GIGA); | |
8fc897b0 | 7064 | if (ret_val) |
1da177e4 | 7065 | return ret_val; |
8fc897b0 | 7066 | for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { |
1da177e4 | 7067 | ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], &phy_data); |
8fc897b0 | 7068 | if (ret_val) |
1da177e4 LT |
7069 | return ret_val; |
7070 | ||
7071 | phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; | |
7072 | phy_data |= IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS; | |
7073 | ||
7074 | ret_val = e1000_write_phy_reg(hw,dsp_reg_array[i], phy_data); | |
8fc897b0 | 7075 | if (ret_val) |
1da177e4 LT |
7076 | return ret_val; |
7077 | } | |
7078 | ||
7079 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7080 | IGP01E1000_IEEE_RESTART_AUTONEG); | |
8fc897b0 | 7081 | if (ret_val) |
1da177e4 LT |
7082 | return ret_val; |
7083 | ||
f8ec4733 | 7084 | mdelay(20); |
1da177e4 LT |
7085 | |
7086 | /* Now enable the transmitter */ | |
7087 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); | |
7088 | ||
8fc897b0 | 7089 | if (ret_val) |
1da177e4 LT |
7090 | return ret_val; |
7091 | ||
7092 | hw->dsp_config_state = e1000_dsp_config_enabled; | |
7093 | } | |
7094 | ||
8fc897b0 | 7095 | if (hw->ffe_config_state == e1000_ffe_config_active) { |
1da177e4 LT |
7096 | /* Save off the current value of register 0x2F5B to be restored at |
7097 | * the end of the routines. */ | |
7098 | ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); | |
7099 | ||
8fc897b0 | 7100 | if (ret_val) |
1da177e4 LT |
7101 | return ret_val; |
7102 | ||
7103 | /* Disable the PHY transmitter */ | |
7104 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); | |
7105 | ||
8fc897b0 | 7106 | if (ret_val) |
1da177e4 LT |
7107 | return ret_val; |
7108 | ||
f8ec4733 | 7109 | mdelay(20); |
1da177e4 LT |
7110 | |
7111 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7112 | IGP01E1000_IEEE_FORCE_GIGA); | |
8fc897b0 | 7113 | if (ret_val) |
1da177e4 LT |
7114 | return ret_val; |
7115 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_DSP_FFE, | |
7116 | IGP01E1000_PHY_DSP_FFE_DEFAULT); | |
8fc897b0 | 7117 | if (ret_val) |
1da177e4 LT |
7118 | return ret_val; |
7119 | ||
7120 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7121 | IGP01E1000_IEEE_RESTART_AUTONEG); | |
8fc897b0 | 7122 | if (ret_val) |
1da177e4 LT |
7123 | return ret_val; |
7124 | ||
f8ec4733 | 7125 | mdelay(20); |
1da177e4 LT |
7126 | |
7127 | /* Now enable the transmitter */ | |
7128 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); | |
7129 | ||
8fc897b0 | 7130 | if (ret_val) |
1da177e4 LT |
7131 | return ret_val; |
7132 | ||
7133 | hw->ffe_config_state = e1000_ffe_config_enabled; | |
7134 | } | |
7135 | } | |
7136 | return E1000_SUCCESS; | |
7137 | } | |
7138 | ||
7139 | /***************************************************************************** | |
7140 | * Set PHY to class A mode | |
7141 | * Assumes the following operations will follow to enable the new class mode. | |
7142 | * 1. Do a PHY soft reset | |
7143 | * 2. Restart auto-negotiation or force link. | |
7144 | * | |
7145 | * hw - Struct containing variables accessed by shared code | |
7146 | ****************************************************************************/ | |
7147 | static int32_t | |
7148 | e1000_set_phy_mode(struct e1000_hw *hw) | |
7149 | { | |
7150 | int32_t ret_val; | |
7151 | uint16_t eeprom_data; | |
7152 | ||
7153 | DEBUGFUNC("e1000_set_phy_mode"); | |
7154 | ||
8fc897b0 AK |
7155 | if ((hw->mac_type == e1000_82545_rev_3) && |
7156 | (hw->media_type == e1000_media_type_copper)) { | |
1da177e4 | 7157 | ret_val = e1000_read_eeprom(hw, EEPROM_PHY_CLASS_WORD, 1, &eeprom_data); |
8fc897b0 | 7158 | if (ret_val) { |
1da177e4 LT |
7159 | return ret_val; |
7160 | } | |
7161 | ||
8fc897b0 AK |
7162 | if ((eeprom_data != EEPROM_RESERVED_WORD) && |
7163 | (eeprom_data & EEPROM_PHY_CLASS_A)) { | |
1da177e4 | 7164 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x000B); |
8fc897b0 | 7165 | if (ret_val) |
1da177e4 LT |
7166 | return ret_val; |
7167 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x8104); | |
8fc897b0 | 7168 | if (ret_val) |
1da177e4 LT |
7169 | return ret_val; |
7170 | ||
7171 | hw->phy_reset_disable = FALSE; | |
7172 | } | |
7173 | } | |
7174 | ||
7175 | return E1000_SUCCESS; | |
7176 | } | |
7177 | ||
7178 | /***************************************************************************** | |
7179 | * | |
7180 | * This function sets the lplu state according to the active flag. When | |
7181 | * activating lplu this function also disables smart speed and vise versa. | |
7182 | * lplu will not be activated unless the device autonegotiation advertisment | |
7183 | * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. | |
7184 | * hw: Struct containing variables accessed by shared code | |
7185 | * active - true to enable lplu false to disable lplu. | |
7186 | * | |
7187 | * returns: - E1000_ERR_PHY if fail to read/write the PHY | |
7188 | * E1000_SUCCESS at any other case. | |
7189 | * | |
7190 | ****************************************************************************/ | |
7191 | ||
3ad2cc67 | 7192 | static int32_t |
1da177e4 LT |
7193 | e1000_set_d3_lplu_state(struct e1000_hw *hw, |
7194 | boolean_t active) | |
7195 | { | |
cd94dd0b | 7196 | uint32_t phy_ctrl = 0; |
1da177e4 LT |
7197 | int32_t ret_val; |
7198 | uint16_t phy_data; | |
7199 | DEBUGFUNC("e1000_set_d3_lplu_state"); | |
7200 | ||
cd94dd0b AK |
7201 | if (hw->phy_type != e1000_phy_igp && hw->phy_type != e1000_phy_igp_2 |
7202 | && hw->phy_type != e1000_phy_igp_3) | |
1da177e4 LT |
7203 | return E1000_SUCCESS; |
7204 | ||
7205 | /* During driver activity LPLU should not be used or it will attain link | |
7206 | * from the lowest speeds starting from 10Mbps. The capability is used for | |
7207 | * Dx transitions and states */ | |
cd94dd0b | 7208 | if (hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) { |
2d7edb92 | 7209 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, &phy_data); |
cd94dd0b | 7210 | if (ret_val) |
2d7edb92 | 7211 | return ret_val; |
cd94dd0b AK |
7212 | } else if (hw->mac_type == e1000_ich8lan) { |
7213 | /* MAC writes into PHY register based on the state transition | |
7214 | * and start auto-negotiation. SW driver can overwrite the settings | |
7215 | * in CSR PHY power control E1000_PHY_CTRL register. */ | |
7216 | phy_ctrl = E1000_READ_REG(hw, PHY_CTRL); | |
2d7edb92 MC |
7217 | } else { |
7218 | ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); | |
8fc897b0 | 7219 | if (ret_val) |
1da177e4 | 7220 | return ret_val; |
2d7edb92 MC |
7221 | } |
7222 | ||
8fc897b0 AK |
7223 | if (!active) { |
7224 | if (hw->mac_type == e1000_82541_rev_2 || | |
7225 | hw->mac_type == e1000_82547_rev_2) { | |
2d7edb92 MC |
7226 | phy_data &= ~IGP01E1000_GMII_FLEX_SPD; |
7227 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); | |
8fc897b0 | 7228 | if (ret_val) |
2d7edb92 MC |
7229 | return ret_val; |
7230 | } else { | |
cd94dd0b AK |
7231 | if (hw->mac_type == e1000_ich8lan) { |
7232 | phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU; | |
7233 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7234 | } else { | |
2d7edb92 MC |
7235 | phy_data &= ~IGP02E1000_PM_D3_LPLU; |
7236 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, | |
7237 | phy_data); | |
7238 | if (ret_val) | |
7239 | return ret_val; | |
cd94dd0b | 7240 | } |
2d7edb92 | 7241 | } |
1da177e4 LT |
7242 | |
7243 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during | |
7244 | * Dx states where the power conservation is most important. During | |
7245 | * driver activity we should enable SmartSpeed, so performance is | |
7246 | * maintained. */ | |
7247 | if (hw->smart_speed == e1000_smart_speed_on) { | |
7248 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7249 | &phy_data); | |
8fc897b0 | 7250 | if (ret_val) |
1da177e4 LT |
7251 | return ret_val; |
7252 | ||
7253 | phy_data |= IGP01E1000_PSCFR_SMART_SPEED; | |
7254 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7255 | phy_data); | |
8fc897b0 | 7256 | if (ret_val) |
1da177e4 LT |
7257 | return ret_val; |
7258 | } else if (hw->smart_speed == e1000_smart_speed_off) { | |
7259 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7260 | &phy_data); | |
7261 | if (ret_val) | |
7262 | return ret_val; | |
7263 | ||
7264 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7265 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7266 | phy_data); | |
8fc897b0 | 7267 | if (ret_val) |
1da177e4 LT |
7268 | return ret_val; |
7269 | } | |
7270 | ||
8fc897b0 AK |
7271 | } else if ((hw->autoneg_advertised == AUTONEG_ADVERTISE_SPEED_DEFAULT) || |
7272 | (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_ALL ) || | |
7273 | (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_100_ALL)) { | |
1da177e4 | 7274 | |
8fc897b0 | 7275 | if (hw->mac_type == e1000_82541_rev_2 || |
cd94dd0b | 7276 | hw->mac_type == e1000_82547_rev_2) { |
2d7edb92 MC |
7277 | phy_data |= IGP01E1000_GMII_FLEX_SPD; |
7278 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); | |
8fc897b0 | 7279 | if (ret_val) |
2d7edb92 MC |
7280 | return ret_val; |
7281 | } else { | |
cd94dd0b AK |
7282 | if (hw->mac_type == e1000_ich8lan) { |
7283 | phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU; | |
7284 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7285 | } else { | |
2d7edb92 MC |
7286 | phy_data |= IGP02E1000_PM_D3_LPLU; |
7287 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, | |
7288 | phy_data); | |
7289 | if (ret_val) | |
7290 | return ret_val; | |
cd94dd0b | 7291 | } |
2d7edb92 MC |
7292 | } |
7293 | ||
7294 | /* When LPLU is enabled we should disable SmartSpeed */ | |
7295 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); | |
8fc897b0 | 7296 | if (ret_val) |
2d7edb92 MC |
7297 | return ret_val; |
7298 | ||
7299 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7300 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); | |
8fc897b0 | 7301 | if (ret_val) |
2d7edb92 MC |
7302 | return ret_val; |
7303 | ||
7304 | } | |
7305 | return E1000_SUCCESS; | |
7306 | } | |
7307 | ||
7308 | /***************************************************************************** | |
7309 | * | |
7310 | * This function sets the lplu d0 state according to the active flag. When | |
7311 | * activating lplu this function also disables smart speed and vise versa. | |
7312 | * lplu will not be activated unless the device autonegotiation advertisment | |
7313 | * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. | |
7314 | * hw: Struct containing variables accessed by shared code | |
7315 | * active - true to enable lplu false to disable lplu. | |
7316 | * | |
7317 | * returns: - E1000_ERR_PHY if fail to read/write the PHY | |
7318 | * E1000_SUCCESS at any other case. | |
7319 | * | |
7320 | ****************************************************************************/ | |
7321 | ||
3ad2cc67 | 7322 | static int32_t |
2d7edb92 MC |
7323 | e1000_set_d0_lplu_state(struct e1000_hw *hw, |
7324 | boolean_t active) | |
7325 | { | |
cd94dd0b | 7326 | uint32_t phy_ctrl = 0; |
2d7edb92 MC |
7327 | int32_t ret_val; |
7328 | uint16_t phy_data; | |
7329 | DEBUGFUNC("e1000_set_d0_lplu_state"); | |
7330 | ||
8fc897b0 | 7331 | if (hw->mac_type <= e1000_82547_rev_2) |
2d7edb92 MC |
7332 | return E1000_SUCCESS; |
7333 | ||
cd94dd0b AK |
7334 | if (hw->mac_type == e1000_ich8lan) { |
7335 | phy_ctrl = E1000_READ_REG(hw, PHY_CTRL); | |
7336 | } else { | |
2d7edb92 | 7337 | ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); |
8fc897b0 | 7338 | if (ret_val) |
1da177e4 | 7339 | return ret_val; |
cd94dd0b | 7340 | } |
1da177e4 | 7341 | |
2d7edb92 | 7342 | if (!active) { |
cd94dd0b AK |
7343 | if (hw->mac_type == e1000_ich8lan) { |
7344 | phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU; | |
7345 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7346 | } else { | |
2d7edb92 MC |
7347 | phy_data &= ~IGP02E1000_PM_D0_LPLU; |
7348 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); | |
7349 | if (ret_val) | |
7350 | return ret_val; | |
cd94dd0b | 7351 | } |
2d7edb92 MC |
7352 | |
7353 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during | |
7354 | * Dx states where the power conservation is most important. During | |
7355 | * driver activity we should enable SmartSpeed, so performance is | |
7356 | * maintained. */ | |
7357 | if (hw->smart_speed == e1000_smart_speed_on) { | |
7358 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7359 | &phy_data); | |
8fc897b0 | 7360 | if (ret_val) |
2d7edb92 MC |
7361 | return ret_val; |
7362 | ||
7363 | phy_data |= IGP01E1000_PSCFR_SMART_SPEED; | |
7364 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7365 | phy_data); | |
8fc897b0 | 7366 | if (ret_val) |
2d7edb92 MC |
7367 | return ret_val; |
7368 | } else if (hw->smart_speed == e1000_smart_speed_off) { | |
7369 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7370 | &phy_data); | |
7371 | if (ret_val) | |
7372 | return ret_val; | |
7373 | ||
7374 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7375 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7376 | phy_data); | |
8fc897b0 | 7377 | if (ret_val) |
2d7edb92 MC |
7378 | return ret_val; |
7379 | } | |
7380 | ||
7381 | ||
7382 | } else { | |
76c224bc | 7383 | |
cd94dd0b AK |
7384 | if (hw->mac_type == e1000_ich8lan) { |
7385 | phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU; | |
7386 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7387 | } else { | |
76c224bc | 7388 | phy_data |= IGP02E1000_PM_D0_LPLU; |
2d7edb92 MC |
7389 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); |
7390 | if (ret_val) | |
7391 | return ret_val; | |
cd94dd0b | 7392 | } |
2d7edb92 | 7393 | |
1da177e4 LT |
7394 | /* When LPLU is enabled we should disable SmartSpeed */ |
7395 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); | |
8fc897b0 | 7396 | if (ret_val) |
1da177e4 LT |
7397 | return ret_val; |
7398 | ||
7399 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7400 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); | |
8fc897b0 | 7401 | if (ret_val) |
1da177e4 LT |
7402 | return ret_val; |
7403 | ||
7404 | } | |
7405 | return E1000_SUCCESS; | |
7406 | } | |
7407 | ||
7408 | /****************************************************************************** | |
7409 | * Change VCO speed register to improve Bit Error Rate performance of SERDES. | |
7410 | * | |
7411 | * hw - Struct containing variables accessed by shared code | |
7412 | *****************************************************************************/ | |
7413 | static int32_t | |
7414 | e1000_set_vco_speed(struct e1000_hw *hw) | |
7415 | { | |
7416 | int32_t ret_val; | |
7417 | uint16_t default_page = 0; | |
7418 | uint16_t phy_data; | |
7419 | ||
7420 | DEBUGFUNC("e1000_set_vco_speed"); | |
7421 | ||
8fc897b0 | 7422 | switch (hw->mac_type) { |
1da177e4 LT |
7423 | case e1000_82545_rev_3: |
7424 | case e1000_82546_rev_3: | |
7425 | break; | |
7426 | default: | |
7427 | return E1000_SUCCESS; | |
7428 | } | |
7429 | ||
7430 | /* Set PHY register 30, page 5, bit 8 to 0 */ | |
7431 | ||
7432 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, &default_page); | |
8fc897b0 | 7433 | if (ret_val) |
1da177e4 LT |
7434 | return ret_val; |
7435 | ||
7436 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005); | |
8fc897b0 | 7437 | if (ret_val) |
1da177e4 LT |
7438 | return ret_val; |
7439 | ||
7440 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); | |
8fc897b0 | 7441 | if (ret_val) |
1da177e4 LT |
7442 | return ret_val; |
7443 | ||
7444 | phy_data &= ~M88E1000_PHY_VCO_REG_BIT8; | |
7445 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); | |
8fc897b0 | 7446 | if (ret_val) |
1da177e4 LT |
7447 | return ret_val; |
7448 | ||
7449 | /* Set PHY register 30, page 4, bit 11 to 1 */ | |
7450 | ||
7451 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004); | |
8fc897b0 | 7452 | if (ret_val) |
1da177e4 LT |
7453 | return ret_val; |
7454 | ||
7455 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); | |
8fc897b0 | 7456 | if (ret_val) |
1da177e4 LT |
7457 | return ret_val; |
7458 | ||
7459 | phy_data |= M88E1000_PHY_VCO_REG_BIT11; | |
7460 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); | |
8fc897b0 | 7461 | if (ret_val) |
1da177e4 LT |
7462 | return ret_val; |
7463 | ||
7464 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, default_page); | |
8fc897b0 | 7465 | if (ret_val) |
1da177e4 LT |
7466 | return ret_val; |
7467 | ||
7468 | return E1000_SUCCESS; | |
7469 | } | |
7470 | ||
1da177e4 | 7471 | |
2d7edb92 MC |
7472 | /***************************************************************************** |
7473 | * This function reads the cookie from ARC ram. | |
7474 | * | |
7475 | * returns: - E1000_SUCCESS . | |
7476 | ****************************************************************************/ | |
7477 | int32_t | |
7478 | e1000_host_if_read_cookie(struct e1000_hw * hw, uint8_t *buffer) | |
7479 | { | |
7480 | uint8_t i; | |
76c224bc | 7481 | uint32_t offset = E1000_MNG_DHCP_COOKIE_OFFSET; |
2d7edb92 | 7482 | uint8_t length = E1000_MNG_DHCP_COOKIE_LENGTH; |
1da177e4 | 7483 | |
2d7edb92 MC |
7484 | length = (length >> 2); |
7485 | offset = (offset >> 2); | |
1da177e4 | 7486 | |
2d7edb92 MC |
7487 | for (i = 0; i < length; i++) { |
7488 | *((uint32_t *) buffer + i) = | |
7489 | E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset + i); | |
7490 | } | |
7491 | return E1000_SUCCESS; | |
7492 | } | |
7493 | ||
7494 | ||
7495 | /***************************************************************************** | |
7496 | * This function checks whether the HOST IF is enabled for command operaton | |
7497 | * and also checks whether the previous command is completed. | |
7498 | * It busy waits in case of previous command is not completed. | |
7499 | * | |
76c224bc | 7500 | * returns: - E1000_ERR_HOST_INTERFACE_COMMAND in case if is not ready or |
2d7edb92 MC |
7501 | * timeout |
7502 | * - E1000_SUCCESS for success. | |
7503 | ****************************************************************************/ | |
3ad2cc67 | 7504 | static int32_t |
2d7edb92 MC |
7505 | e1000_mng_enable_host_if(struct e1000_hw * hw) |
7506 | { | |
7507 | uint32_t hicr; | |
7508 | uint8_t i; | |
7509 | ||
7510 | /* Check that the host interface is enabled. */ | |
7511 | hicr = E1000_READ_REG(hw, HICR); | |
7512 | if ((hicr & E1000_HICR_EN) == 0) { | |
7513 | DEBUGOUT("E1000_HOST_EN bit disabled.\n"); | |
7514 | return -E1000_ERR_HOST_INTERFACE_COMMAND; | |
7515 | } | |
7516 | /* check the previous command is completed */ | |
7517 | for (i = 0; i < E1000_MNG_DHCP_COMMAND_TIMEOUT; i++) { | |
7518 | hicr = E1000_READ_REG(hw, HICR); | |
7519 | if (!(hicr & E1000_HICR_C)) | |
7520 | break; | |
f8ec4733 | 7521 | mdelay(1); |
2d7edb92 MC |
7522 | } |
7523 | ||
76c224bc | 7524 | if (i == E1000_MNG_DHCP_COMMAND_TIMEOUT) { |
2d7edb92 MC |
7525 | DEBUGOUT("Previous command timeout failed .\n"); |
7526 | return -E1000_ERR_HOST_INTERFACE_COMMAND; | |
7527 | } | |
7528 | return E1000_SUCCESS; | |
7529 | } | |
7530 | ||
7531 | /***************************************************************************** | |
7532 | * This function writes the buffer content at the offset given on the host if. | |
7533 | * It also does alignment considerations to do the writes in most efficient way. | |
7534 | * Also fills up the sum of the buffer in *buffer parameter. | |
7535 | * | |
7536 | * returns - E1000_SUCCESS for success. | |
7537 | ****************************************************************************/ | |
3ad2cc67 | 7538 | static int32_t |
2d7edb92 MC |
7539 | e1000_mng_host_if_write(struct e1000_hw * hw, uint8_t *buffer, |
7540 | uint16_t length, uint16_t offset, uint8_t *sum) | |
7541 | { | |
7542 | uint8_t *tmp; | |
7543 | uint8_t *bufptr = buffer; | |
8fc897b0 | 7544 | uint32_t data = 0; |
2d7edb92 MC |
7545 | uint16_t remaining, i, j, prev_bytes; |
7546 | ||
7547 | /* sum = only sum of the data and it is not checksum */ | |
7548 | ||
7549 | if (length == 0 || offset + length > E1000_HI_MAX_MNG_DATA_LENGTH) { | |
7550 | return -E1000_ERR_PARAM; | |
7551 | } | |
7552 | ||
7553 | tmp = (uint8_t *)&data; | |
7554 | prev_bytes = offset & 0x3; | |
7555 | offset &= 0xFFFC; | |
7556 | offset >>= 2; | |
7557 | ||
7558 | if (prev_bytes) { | |
7559 | data = E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset); | |
7560 | for (j = prev_bytes; j < sizeof(uint32_t); j++) { | |
7561 | *(tmp + j) = *bufptr++; | |
7562 | *sum += *(tmp + j); | |
7563 | } | |
7564 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset, data); | |
7565 | length -= j - prev_bytes; | |
7566 | offset++; | |
7567 | } | |
7568 | ||
7569 | remaining = length & 0x3; | |
7570 | length -= remaining; | |
7571 | ||
7572 | /* Calculate length in DWORDs */ | |
7573 | length >>= 2; | |
7574 | ||
7575 | /* The device driver writes the relevant command block into the | |
7576 | * ram area. */ | |
7577 | for (i = 0; i < length; i++) { | |
7578 | for (j = 0; j < sizeof(uint32_t); j++) { | |
7579 | *(tmp + j) = *bufptr++; | |
7580 | *sum += *(tmp + j); | |
7581 | } | |
7582 | ||
7583 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); | |
7584 | } | |
7585 | if (remaining) { | |
7586 | for (j = 0; j < sizeof(uint32_t); j++) { | |
7587 | if (j < remaining) | |
7588 | *(tmp + j) = *bufptr++; | |
7589 | else | |
7590 | *(tmp + j) = 0; | |
7591 | ||
7592 | *sum += *(tmp + j); | |
7593 | } | |
7594 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); | |
7595 | } | |
7596 | ||
7597 | return E1000_SUCCESS; | |
7598 | } | |
7599 | ||
7600 | ||
7601 | /***************************************************************************** | |
7602 | * This function writes the command header after does the checksum calculation. | |
7603 | * | |
7604 | * returns - E1000_SUCCESS for success. | |
7605 | ****************************************************************************/ | |
3ad2cc67 | 7606 | static int32_t |
2d7edb92 MC |
7607 | e1000_mng_write_cmd_header(struct e1000_hw * hw, |
7608 | struct e1000_host_mng_command_header * hdr) | |
7609 | { | |
7610 | uint16_t i; | |
7611 | uint8_t sum; | |
7612 | uint8_t *buffer; | |
7613 | ||
7614 | /* Write the whole command header structure which includes sum of | |
7615 | * the buffer */ | |
7616 | ||
7617 | uint16_t length = sizeof(struct e1000_host_mng_command_header); | |
7618 | ||
7619 | sum = hdr->checksum; | |
7620 | hdr->checksum = 0; | |
7621 | ||
7622 | buffer = (uint8_t *) hdr; | |
7623 | i = length; | |
8fc897b0 | 7624 | while (i--) |
2d7edb92 MC |
7625 | sum += buffer[i]; |
7626 | ||
7627 | hdr->checksum = 0 - sum; | |
7628 | ||
7629 | length >>= 2; | |
7630 | /* The device driver writes the relevant command block into the ram area. */ | |
4ca213a6 | 7631 | for (i = 0; i < length; i++) { |
2d7edb92 | 7632 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, i, *((uint32_t *) hdr + i)); |
4ca213a6 AK |
7633 | E1000_WRITE_FLUSH(hw); |
7634 | } | |
2d7edb92 MC |
7635 | |
7636 | return E1000_SUCCESS; | |
7637 | } | |
7638 | ||
7639 | ||
7640 | /***************************************************************************** | |
7641 | * This function indicates to ARC that a new command is pending which completes | |
7642 | * one write operation by the driver. | |
7643 | * | |
7644 | * returns - E1000_SUCCESS for success. | |
7645 | ****************************************************************************/ | |
3ad2cc67 | 7646 | static int32_t |
8fc897b0 | 7647 | e1000_mng_write_commit(struct e1000_hw * hw) |
2d7edb92 MC |
7648 | { |
7649 | uint32_t hicr; | |
7650 | ||
7651 | hicr = E1000_READ_REG(hw, HICR); | |
7652 | /* Setting this bit tells the ARC that a new command is pending. */ | |
7653 | E1000_WRITE_REG(hw, HICR, hicr | E1000_HICR_C); | |
7654 | ||
7655 | return E1000_SUCCESS; | |
7656 | } | |
7657 | ||
7658 | ||
7659 | /***************************************************************************** | |
7660 | * This function checks the mode of the firmware. | |
7661 | * | |
7662 | * returns - TRUE when the mode is IAMT or FALSE. | |
7663 | ****************************************************************************/ | |
7664 | boolean_t | |
cd94dd0b | 7665 | e1000_check_mng_mode(struct e1000_hw *hw) |
2d7edb92 MC |
7666 | { |
7667 | uint32_t fwsm; | |
7668 | ||
7669 | fwsm = E1000_READ_REG(hw, FWSM); | |
7670 | ||
cd94dd0b AK |
7671 | if (hw->mac_type == e1000_ich8lan) { |
7672 | if ((fwsm & E1000_FWSM_MODE_MASK) == | |
7673 | (E1000_MNG_ICH_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) | |
7674 | return TRUE; | |
7675 | } else if ((fwsm & E1000_FWSM_MODE_MASK) == | |
7676 | (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) | |
2d7edb92 MC |
7677 | return TRUE; |
7678 | ||
7679 | return FALSE; | |
7680 | } | |
7681 | ||
7682 | ||
7683 | /***************************************************************************** | |
7684 | * This function writes the dhcp info . | |
7685 | ****************************************************************************/ | |
7686 | int32_t | |
7687 | e1000_mng_write_dhcp_info(struct e1000_hw * hw, uint8_t *buffer, | |
7688 | uint16_t length) | |
7689 | { | |
7690 | int32_t ret_val; | |
7691 | struct e1000_host_mng_command_header hdr; | |
7692 | ||
7693 | hdr.command_id = E1000_MNG_DHCP_TX_PAYLOAD_CMD; | |
7694 | hdr.command_length = length; | |
7695 | hdr.reserved1 = 0; | |
7696 | hdr.reserved2 = 0; | |
7697 | hdr.checksum = 0; | |
7698 | ||
7699 | ret_val = e1000_mng_enable_host_if(hw); | |
7700 | if (ret_val == E1000_SUCCESS) { | |
7701 | ret_val = e1000_mng_host_if_write(hw, buffer, length, sizeof(hdr), | |
7702 | &(hdr.checksum)); | |
7703 | if (ret_val == E1000_SUCCESS) { | |
7704 | ret_val = e1000_mng_write_cmd_header(hw, &hdr); | |
7705 | if (ret_val == E1000_SUCCESS) | |
7706 | ret_val = e1000_mng_write_commit(hw); | |
7707 | } | |
7708 | } | |
7709 | return ret_val; | |
7710 | } | |
7711 | ||
7712 | ||
7713 | /***************************************************************************** | |
7714 | * This function calculates the checksum. | |
7715 | * | |
7716 | * returns - checksum of buffer contents. | |
7717 | ****************************************************************************/ | |
7718 | uint8_t | |
7719 | e1000_calculate_mng_checksum(char *buffer, uint32_t length) | |
7720 | { | |
7721 | uint8_t sum = 0; | |
7722 | uint32_t i; | |
7723 | ||
7724 | if (!buffer) | |
7725 | return 0; | |
7726 | ||
7727 | for (i=0; i < length; i++) | |
7728 | sum += buffer[i]; | |
7729 | ||
7730 | return (uint8_t) (0 - sum); | |
7731 | } | |
7732 | ||
7733 | /***************************************************************************** | |
7734 | * This function checks whether tx pkt filtering needs to be enabled or not. | |
7735 | * | |
7736 | * returns - TRUE for packet filtering or FALSE. | |
7737 | ****************************************************************************/ | |
7738 | boolean_t | |
7739 | e1000_enable_tx_pkt_filtering(struct e1000_hw *hw) | |
7740 | { | |
7741 | /* called in init as well as watchdog timer functions */ | |
7742 | ||
7743 | int32_t ret_val, checksum; | |
7744 | boolean_t tx_filter = FALSE; | |
7745 | struct e1000_host_mng_dhcp_cookie *hdr = &(hw->mng_cookie); | |
7746 | uint8_t *buffer = (uint8_t *) &(hw->mng_cookie); | |
7747 | ||
7748 | if (e1000_check_mng_mode(hw)) { | |
7749 | ret_val = e1000_mng_enable_host_if(hw); | |
7750 | if (ret_val == E1000_SUCCESS) { | |
7751 | ret_val = e1000_host_if_read_cookie(hw, buffer); | |
7752 | if (ret_val == E1000_SUCCESS) { | |
7753 | checksum = hdr->checksum; | |
7754 | hdr->checksum = 0; | |
7755 | if ((hdr->signature == E1000_IAMT_SIGNATURE) && | |
7756 | checksum == e1000_calculate_mng_checksum((char *)buffer, | |
7757 | E1000_MNG_DHCP_COOKIE_LENGTH)) { | |
7758 | if (hdr->status & | |
7759 | E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT) | |
7760 | tx_filter = TRUE; | |
7761 | } else | |
7762 | tx_filter = TRUE; | |
7763 | } else | |
7764 | tx_filter = TRUE; | |
7765 | } | |
7766 | } | |
7767 | ||
7768 | hw->tx_pkt_filtering = tx_filter; | |
7769 | return tx_filter; | |
7770 | } | |
7771 | ||
7772 | /****************************************************************************** | |
7773 | * Verifies the hardware needs to allow ARPs to be processed by the host | |
7774 | * | |
7775 | * hw - Struct containing variables accessed by shared code | |
7776 | * | |
7777 | * returns: - TRUE/FALSE | |
7778 | * | |
7779 | *****************************************************************************/ | |
7780 | uint32_t | |
7781 | e1000_enable_mng_pass_thru(struct e1000_hw *hw) | |
7782 | { | |
7783 | uint32_t manc; | |
7784 | uint32_t fwsm, factps; | |
7785 | ||
7786 | if (hw->asf_firmware_present) { | |
7787 | manc = E1000_READ_REG(hw, MANC); | |
7788 | ||
7789 | if (!(manc & E1000_MANC_RCV_TCO_EN) || | |
7790 | !(manc & E1000_MANC_EN_MAC_ADDR_FILTER)) | |
7791 | return FALSE; | |
7792 | if (e1000_arc_subsystem_valid(hw) == TRUE) { | |
7793 | fwsm = E1000_READ_REG(hw, FWSM); | |
7794 | factps = E1000_READ_REG(hw, FACTPS); | |
7795 | ||
7796 | if (((fwsm & E1000_FWSM_MODE_MASK) == | |
7797 | (e1000_mng_mode_pt << E1000_FWSM_MODE_SHIFT)) && | |
7798 | (factps & E1000_FACTPS_MNGCG)) | |
7799 | return TRUE; | |
7800 | } else | |
7801 | if ((manc & E1000_MANC_SMBUS_EN) && !(manc & E1000_MANC_ASF_EN)) | |
7802 | return TRUE; | |
7803 | } | |
7804 | return FALSE; | |
7805 | } | |
7806 | ||
7807 | static int32_t | |
7808 | e1000_polarity_reversal_workaround(struct e1000_hw *hw) | |
7809 | { | |
7810 | int32_t ret_val; | |
7811 | uint16_t mii_status_reg; | |
7812 | uint16_t i; | |
7813 | ||
7814 | /* Polarity reversal workaround for forced 10F/10H links. */ | |
7815 | ||
7816 | /* Disable the transmitter on the PHY */ | |
7817 | ||
7818 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); | |
8fc897b0 | 7819 | if (ret_val) |
1da177e4 LT |
7820 | return ret_val; |
7821 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFFF); | |
8fc897b0 | 7822 | if (ret_val) |
1da177e4 LT |
7823 | return ret_val; |
7824 | ||
7825 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); | |
8fc897b0 | 7826 | if (ret_val) |
1da177e4 LT |
7827 | return ret_val; |
7828 | ||
7829 | /* This loop will early-out if the NO link condition has been met. */ | |
8fc897b0 | 7830 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
1da177e4 LT |
7831 | /* Read the MII Status Register and wait for Link Status bit |
7832 | * to be clear. | |
7833 | */ | |
7834 | ||
7835 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7836 | if (ret_val) |
1da177e4 LT |
7837 | return ret_val; |
7838 | ||
7839 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7840 | if (ret_val) |
1da177e4 LT |
7841 | return ret_val; |
7842 | ||
8fc897b0 | 7843 | if ((mii_status_reg & ~MII_SR_LINK_STATUS) == 0) break; |
f8ec4733 | 7844 | mdelay(100); |
1da177e4 LT |
7845 | } |
7846 | ||
7847 | /* Recommended delay time after link has been lost */ | |
f8ec4733 | 7848 | mdelay(1000); |
1da177e4 LT |
7849 | |
7850 | /* Now we will re-enable th transmitter on the PHY */ | |
7851 | ||
7852 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); | |
8fc897b0 | 7853 | if (ret_val) |
1da177e4 | 7854 | return ret_val; |
f8ec4733 | 7855 | mdelay(50); |
1da177e4 | 7856 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFF0); |
8fc897b0 | 7857 | if (ret_val) |
1da177e4 | 7858 | return ret_val; |
f8ec4733 | 7859 | mdelay(50); |
1da177e4 | 7860 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFF00); |
8fc897b0 | 7861 | if (ret_val) |
1da177e4 | 7862 | return ret_val; |
f8ec4733 | 7863 | mdelay(50); |
1da177e4 | 7864 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x0000); |
8fc897b0 | 7865 | if (ret_val) |
1da177e4 LT |
7866 | return ret_val; |
7867 | ||
7868 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); | |
8fc897b0 | 7869 | if (ret_val) |
1da177e4 LT |
7870 | return ret_val; |
7871 | ||
7872 | /* This loop will early-out if the link condition has been met. */ | |
8fc897b0 | 7873 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
1da177e4 LT |
7874 | /* Read the MII Status Register and wait for Link Status bit |
7875 | * to be set. | |
7876 | */ | |
7877 | ||
7878 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7879 | if (ret_val) |
1da177e4 LT |
7880 | return ret_val; |
7881 | ||
7882 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7883 | if (ret_val) |
1da177e4 LT |
7884 | return ret_val; |
7885 | ||
8fc897b0 | 7886 | if (mii_status_reg & MII_SR_LINK_STATUS) break; |
f8ec4733 | 7887 | mdelay(100); |
1da177e4 LT |
7888 | } |
7889 | return E1000_SUCCESS; | |
7890 | } | |
7891 | ||
2d7edb92 MC |
7892 | /*************************************************************************** |
7893 | * | |
7894 | * Disables PCI-Express master access. | |
7895 | * | |
7896 | * hw: Struct containing variables accessed by shared code | |
7897 | * | |
7898 | * returns: - none. | |
7899 | * | |
7900 | ***************************************************************************/ | |
3ad2cc67 | 7901 | static void |
2d7edb92 MC |
7902 | e1000_set_pci_express_master_disable(struct e1000_hw *hw) |
7903 | { | |
7904 | uint32_t ctrl; | |
7905 | ||
7906 | DEBUGFUNC("e1000_set_pci_express_master_disable"); | |
7907 | ||
7908 | if (hw->bus_type != e1000_bus_type_pci_express) | |
7909 | return; | |
7910 | ||
7911 | ctrl = E1000_READ_REG(hw, CTRL); | |
7912 | ctrl |= E1000_CTRL_GIO_MASTER_DISABLE; | |
7913 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
7914 | } | |
7915 | ||
7916 | /*************************************************************************** | |
7917 | * | |
7918 | * Enables PCI-Express master access. | |
7919 | * | |
7920 | * hw: Struct containing variables accessed by shared code | |
7921 | * | |
7922 | * returns: - none. | |
7923 | * | |
7924 | ***************************************************************************/ | |
e4c780b1 | 7925 | #if 0 |
2d7edb92 MC |
7926 | void |
7927 | e1000_enable_pciex_master(struct e1000_hw *hw) | |
7928 | { | |
7929 | uint32_t ctrl; | |
7930 | ||
7931 | DEBUGFUNC("e1000_enable_pciex_master"); | |
7932 | ||
7933 | if (hw->bus_type != e1000_bus_type_pci_express) | |
7934 | return; | |
7935 | ||
7936 | ctrl = E1000_READ_REG(hw, CTRL); | |
7937 | ctrl &= ~E1000_CTRL_GIO_MASTER_DISABLE; | |
7938 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
7939 | } | |
e4c780b1 | 7940 | #endif /* 0 */ |
2d7edb92 MC |
7941 | |
7942 | /******************************************************************************* | |
7943 | * | |
7944 | * Disables PCI-Express master access and verifies there are no pending requests | |
7945 | * | |
7946 | * hw: Struct containing variables accessed by shared code | |
7947 | * | |
7948 | * returns: - E1000_ERR_MASTER_REQUESTS_PENDING if master disable bit hasn't | |
7949 | * caused the master requests to be disabled. | |
7950 | * E1000_SUCCESS master requests disabled. | |
7951 | * | |
7952 | ******************************************************************************/ | |
7953 | int32_t | |
7954 | e1000_disable_pciex_master(struct e1000_hw *hw) | |
7955 | { | |
7956 | int32_t timeout = MASTER_DISABLE_TIMEOUT; /* 80ms */ | |
7957 | ||
7958 | DEBUGFUNC("e1000_disable_pciex_master"); | |
7959 | ||
7960 | if (hw->bus_type != e1000_bus_type_pci_express) | |
7961 | return E1000_SUCCESS; | |
7962 | ||
7963 | e1000_set_pci_express_master_disable(hw); | |
7964 | ||
8fc897b0 AK |
7965 | while (timeout) { |
7966 | if (!(E1000_READ_REG(hw, STATUS) & E1000_STATUS_GIO_MASTER_ENABLE)) | |
2d7edb92 MC |
7967 | break; |
7968 | else | |
7969 | udelay(100); | |
7970 | timeout--; | |
7971 | } | |
7972 | ||
8fc897b0 | 7973 | if (!timeout) { |
2d7edb92 MC |
7974 | DEBUGOUT("Master requests are pending.\n"); |
7975 | return -E1000_ERR_MASTER_REQUESTS_PENDING; | |
7976 | } | |
7977 | ||
7978 | return E1000_SUCCESS; | |
7979 | } | |
7980 | ||
7981 | /******************************************************************************* | |
7982 | * | |
7983 | * Check for EEPROM Auto Read bit done. | |
7984 | * | |
7985 | * hw: Struct containing variables accessed by shared code | |
7986 | * | |
7987 | * returns: - E1000_ERR_RESET if fail to reset MAC | |
7988 | * E1000_SUCCESS at any other case. | |
7989 | * | |
7990 | ******************************************************************************/ | |
3ad2cc67 | 7991 | static int32_t |
2d7edb92 MC |
7992 | e1000_get_auto_rd_done(struct e1000_hw *hw) |
7993 | { | |
7994 | int32_t timeout = AUTO_READ_DONE_TIMEOUT; | |
7995 | ||
7996 | DEBUGFUNC("e1000_get_auto_rd_done"); | |
7997 | ||
7998 | switch (hw->mac_type) { | |
7999 | default: | |
f8ec4733 | 8000 | msleep(5); |
2d7edb92 | 8001 | break; |
868d5309 MC |
8002 | case e1000_82571: |
8003 | case e1000_82572: | |
2d7edb92 | 8004 | case e1000_82573: |
6418ecc6 | 8005 | case e1000_80003es2lan: |
cd94dd0b AK |
8006 | case e1000_ich8lan: |
8007 | while (timeout) { | |
8008 | if (E1000_READ_REG(hw, EECD) & E1000_EECD_AUTO_RD) | |
8009 | break; | |
f8ec4733 | 8010 | else msleep(1); |
2d7edb92 MC |
8011 | timeout--; |
8012 | } | |
8013 | ||
8fc897b0 | 8014 | if (!timeout) { |
2d7edb92 MC |
8015 | DEBUGOUT("Auto read by HW from EEPROM has not completed.\n"); |
8016 | return -E1000_ERR_RESET; | |
8017 | } | |
8018 | break; | |
8019 | } | |
8020 | ||
fd803241 JK |
8021 | /* PHY configuration from NVM just starts after EECD_AUTO_RD sets to high. |
8022 | * Need to wait for PHY configuration completion before accessing NVM | |
8023 | * and PHY. */ | |
8024 | if (hw->mac_type == e1000_82573) | |
f8ec4733 | 8025 | msleep(25); |
fd803241 | 8026 | |
2d7edb92 MC |
8027 | return E1000_SUCCESS; |
8028 | } | |
8029 | ||
8030 | /*************************************************************************** | |
8031 | * Checks if the PHY configuration is done | |
8032 | * | |
8033 | * hw: Struct containing variables accessed by shared code | |
8034 | * | |
8035 | * returns: - E1000_ERR_RESET if fail to reset MAC | |
8036 | * E1000_SUCCESS at any other case. | |
8037 | * | |
8038 | ***************************************************************************/ | |
3ad2cc67 | 8039 | static int32_t |
2d7edb92 MC |
8040 | e1000_get_phy_cfg_done(struct e1000_hw *hw) |
8041 | { | |
868d5309 MC |
8042 | int32_t timeout = PHY_CFG_TIMEOUT; |
8043 | uint32_t cfg_mask = E1000_EEPROM_CFG_DONE; | |
8044 | ||
2d7edb92 MC |
8045 | DEBUGFUNC("e1000_get_phy_cfg_done"); |
8046 | ||
868d5309 MC |
8047 | switch (hw->mac_type) { |
8048 | default: | |
f8ec4733 | 8049 | mdelay(10); |
868d5309 | 8050 | break; |
6418ecc6 JK |
8051 | case e1000_80003es2lan: |
8052 | /* Separate *_CFG_DONE_* bit for each port */ | |
8053 | if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) | |
8054 | cfg_mask = E1000_EEPROM_CFG_DONE_PORT_1; | |
8055 | /* Fall Through */ | |
868d5309 MC |
8056 | case e1000_82571: |
8057 | case e1000_82572: | |
8058 | while (timeout) { | |
8059 | if (E1000_READ_REG(hw, EEMNGCTL) & cfg_mask) | |
8060 | break; | |
8061 | else | |
f8ec4733 | 8062 | msleep(1); |
868d5309 MC |
8063 | timeout--; |
8064 | } | |
8065 | ||
8066 | if (!timeout) { | |
8067 | DEBUGOUT("MNG configuration cycle has not completed.\n"); | |
8068 | return -E1000_ERR_RESET; | |
8069 | } | |
8070 | break; | |
8071 | } | |
2d7edb92 MC |
8072 | |
8073 | return E1000_SUCCESS; | |
8074 | } | |
8075 | ||
8076 | /*************************************************************************** | |
8077 | * | |
8078 | * Using the combination of SMBI and SWESMBI semaphore bits when resetting | |
8079 | * adapter or Eeprom access. | |
8080 | * | |
8081 | * hw: Struct containing variables accessed by shared code | |
8082 | * | |
8083 | * returns: - E1000_ERR_EEPROM if fail to access EEPROM. | |
8084 | * E1000_SUCCESS at any other case. | |
8085 | * | |
8086 | ***************************************************************************/ | |
3ad2cc67 | 8087 | static int32_t |
2d7edb92 MC |
8088 | e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw) |
8089 | { | |
8090 | int32_t timeout; | |
8091 | uint32_t swsm; | |
8092 | ||
8093 | DEBUGFUNC("e1000_get_hw_eeprom_semaphore"); | |
8094 | ||
8fc897b0 | 8095 | if (!hw->eeprom_semaphore_present) |
2d7edb92 MC |
8096 | return E1000_SUCCESS; |
8097 | ||
6418ecc6 JK |
8098 | if (hw->mac_type == e1000_80003es2lan) { |
8099 | /* Get the SW semaphore. */ | |
8100 | if (e1000_get_software_semaphore(hw) != E1000_SUCCESS) | |
8101 | return -E1000_ERR_EEPROM; | |
8102 | } | |
2d7edb92 MC |
8103 | |
8104 | /* Get the FW semaphore. */ | |
8105 | timeout = hw->eeprom.word_size + 1; | |
8fc897b0 | 8106 | while (timeout) { |
2d7edb92 MC |
8107 | swsm = E1000_READ_REG(hw, SWSM); |
8108 | swsm |= E1000_SWSM_SWESMBI; | |
8109 | E1000_WRITE_REG(hw, SWSM, swsm); | |
8110 | /* if we managed to set the bit we got the semaphore. */ | |
8111 | swsm = E1000_READ_REG(hw, SWSM); | |
8fc897b0 | 8112 | if (swsm & E1000_SWSM_SWESMBI) |
2d7edb92 MC |
8113 | break; |
8114 | ||
8115 | udelay(50); | |
8116 | timeout--; | |
8117 | } | |
8118 | ||
8fc897b0 | 8119 | if (!timeout) { |
2d7edb92 MC |
8120 | /* Release semaphores */ |
8121 | e1000_put_hw_eeprom_semaphore(hw); | |
8122 | DEBUGOUT("Driver can't access the Eeprom - SWESMBI bit is set.\n"); | |
8123 | return -E1000_ERR_EEPROM; | |
8124 | } | |
8125 | ||
8126 | return E1000_SUCCESS; | |
8127 | } | |
8128 | ||
8129 | /*************************************************************************** | |
8130 | * This function clears HW semaphore bits. | |
8131 | * | |
8132 | * hw: Struct containing variables accessed by shared code | |
8133 | * | |
8134 | * returns: - None. | |
8135 | * | |
8136 | ***************************************************************************/ | |
3ad2cc67 | 8137 | static void |
2d7edb92 MC |
8138 | e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw) |
8139 | { | |
8140 | uint32_t swsm; | |
8141 | ||
8142 | DEBUGFUNC("e1000_put_hw_eeprom_semaphore"); | |
8143 | ||
8fc897b0 | 8144 | if (!hw->eeprom_semaphore_present) |
2d7edb92 MC |
8145 | return; |
8146 | ||
8147 | swsm = E1000_READ_REG(hw, SWSM); | |
6418ecc6 JK |
8148 | if (hw->mac_type == e1000_80003es2lan) { |
8149 | /* Release both semaphores. */ | |
8150 | swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI); | |
8151 | } else | |
868d5309 | 8152 | swsm &= ~(E1000_SWSM_SWESMBI); |
2d7edb92 MC |
8153 | E1000_WRITE_REG(hw, SWSM, swsm); |
8154 | } | |
8155 | ||
6418ecc6 JK |
8156 | /*************************************************************************** |
8157 | * | |
8158 | * Obtaining software semaphore bit (SMBI) before resetting PHY. | |
8159 | * | |
8160 | * hw: Struct containing variables accessed by shared code | |
8161 | * | |
8162 | * returns: - E1000_ERR_RESET if fail to obtain semaphore. | |
8163 | * E1000_SUCCESS at any other case. | |
8164 | * | |
8165 | ***************************************************************************/ | |
e4c780b1 | 8166 | static int32_t |
6418ecc6 JK |
8167 | e1000_get_software_semaphore(struct e1000_hw *hw) |
8168 | { | |
8169 | int32_t timeout = hw->eeprom.word_size + 1; | |
8170 | uint32_t swsm; | |
8171 | ||
8172 | DEBUGFUNC("e1000_get_software_semaphore"); | |
8173 | ||
8174 | if (hw->mac_type != e1000_80003es2lan) | |
8175 | return E1000_SUCCESS; | |
8176 | ||
8fc897b0 | 8177 | while (timeout) { |
6418ecc6 JK |
8178 | swsm = E1000_READ_REG(hw, SWSM); |
8179 | /* If SMBI bit cleared, it is now set and we hold the semaphore */ | |
8fc897b0 | 8180 | if (!(swsm & E1000_SWSM_SMBI)) |
6418ecc6 | 8181 | break; |
f8ec4733 | 8182 | mdelay(1); |
6418ecc6 JK |
8183 | timeout--; |
8184 | } | |
8185 | ||
8fc897b0 | 8186 | if (!timeout) { |
6418ecc6 JK |
8187 | DEBUGOUT("Driver can't access device - SMBI bit is set.\n"); |
8188 | return -E1000_ERR_RESET; | |
8189 | } | |
8190 | ||
8191 | return E1000_SUCCESS; | |
8192 | } | |
8193 | ||
8194 | /*************************************************************************** | |
8195 | * | |
8196 | * Release semaphore bit (SMBI). | |
8197 | * | |
8198 | * hw: Struct containing variables accessed by shared code | |
8199 | * | |
8200 | ***************************************************************************/ | |
e4c780b1 | 8201 | static void |
6418ecc6 JK |
8202 | e1000_release_software_semaphore(struct e1000_hw *hw) |
8203 | { | |
8204 | uint32_t swsm; | |
8205 | ||
8206 | DEBUGFUNC("e1000_release_software_semaphore"); | |
8207 | ||
8208 | if (hw->mac_type != e1000_80003es2lan) | |
8209 | return; | |
8210 | ||
8211 | swsm = E1000_READ_REG(hw, SWSM); | |
8212 | /* Release the SW semaphores.*/ | |
8213 | swsm &= ~E1000_SWSM_SMBI; | |
8214 | E1000_WRITE_REG(hw, SWSM, swsm); | |
8215 | } | |
8216 | ||
2d7edb92 MC |
8217 | /****************************************************************************** |
8218 | * Checks if PHY reset is blocked due to SOL/IDER session, for example. | |
8219 | * Returning E1000_BLK_PHY_RESET isn't necessarily an error. But it's up to | |
8220 | * the caller to figure out how to deal with it. | |
8221 | * | |
8222 | * hw - Struct containing variables accessed by shared code | |
8223 | * | |
8224 | * returns: - E1000_BLK_PHY_RESET | |
8225 | * E1000_SUCCESS | |
8226 | * | |
8227 | *****************************************************************************/ | |
8228 | int32_t | |
8229 | e1000_check_phy_reset_block(struct e1000_hw *hw) | |
8230 | { | |
8231 | uint32_t manc = 0; | |
cd94dd0b AK |
8232 | uint32_t fwsm = 0; |
8233 | ||
8234 | if (hw->mac_type == e1000_ich8lan) { | |
8235 | fwsm = E1000_READ_REG(hw, FWSM); | |
8236 | return (fwsm & E1000_FWSM_RSPCIPHY) ? E1000_SUCCESS | |
8237 | : E1000_BLK_PHY_RESET; | |
8238 | } | |
96838a40 JB |
8239 | |
8240 | if (hw->mac_type > e1000_82547_rev_2) | |
2d7edb92 MC |
8241 | manc = E1000_READ_REG(hw, MANC); |
8242 | return (manc & E1000_MANC_BLK_PHY_RST_ON_IDE) ? | |
8243 | E1000_BLK_PHY_RESET : E1000_SUCCESS; | |
8244 | } | |
8245 | ||
3ad2cc67 | 8246 | static uint8_t |
2d7edb92 MC |
8247 | e1000_arc_subsystem_valid(struct e1000_hw *hw) |
8248 | { | |
8249 | uint32_t fwsm; | |
8250 | ||
8251 | /* On 8257x silicon, registers in the range of 0x8800 - 0x8FFC | |
8252 | * may not be provided a DMA clock when no manageability features are | |
8253 | * enabled. We do not want to perform any reads/writes to these registers | |
8254 | * if this is the case. We read FWSM to determine the manageability mode. | |
8255 | */ | |
8256 | switch (hw->mac_type) { | |
868d5309 MC |
8257 | case e1000_82571: |
8258 | case e1000_82572: | |
2d7edb92 | 8259 | case e1000_82573: |
6418ecc6 | 8260 | case e1000_80003es2lan: |
2d7edb92 | 8261 | fwsm = E1000_READ_REG(hw, FWSM); |
8fc897b0 | 8262 | if ((fwsm & E1000_FWSM_MODE_MASK) != 0) |
2d7edb92 MC |
8263 | return TRUE; |
8264 | break; | |
cd94dd0b AK |
8265 | case e1000_ich8lan: |
8266 | return TRUE; | |
2d7edb92 MC |
8267 | default: |
8268 | break; | |
8269 | } | |
8270 | return FALSE; | |
8271 | } | |
8272 | ||
8273 | ||
d37ea5d5 AK |
8274 | /****************************************************************************** |
8275 | * Configure PCI-Ex no-snoop | |
8276 | * | |
8277 | * hw - Struct containing variables accessed by shared code. | |
8278 | * no_snoop - Bitmap of no-snoop events. | |
8279 | * | |
8280 | * returns: E1000_SUCCESS | |
8281 | * | |
8282 | *****************************************************************************/ | |
e4c780b1 | 8283 | static int32_t |
d37ea5d5 AK |
8284 | e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, uint32_t no_snoop) |
8285 | { | |
8286 | uint32_t gcr_reg = 0; | |
8287 | ||
8288 | DEBUGFUNC("e1000_set_pci_ex_no_snoop"); | |
8289 | ||
8290 | if (hw->bus_type == e1000_bus_type_unknown) | |
8291 | e1000_get_bus_info(hw); | |
8292 | ||
8293 | if (hw->bus_type != e1000_bus_type_pci_express) | |
8294 | return E1000_SUCCESS; | |
8295 | ||
8296 | if (no_snoop) { | |
8297 | gcr_reg = E1000_READ_REG(hw, GCR); | |
8298 | gcr_reg &= ~(PCI_EX_NO_SNOOP_ALL); | |
8299 | gcr_reg |= no_snoop; | |
8300 | E1000_WRITE_REG(hw, GCR, gcr_reg); | |
8301 | } | |
8302 | if (hw->mac_type == e1000_ich8lan) { | |
8303 | uint32_t ctrl_ext; | |
8304 | ||
8305 | E1000_WRITE_REG(hw, GCR, PCI_EX_82566_SNOOP_ALL); | |
8306 | ||
8307 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
8308 | ctrl_ext |= E1000_CTRL_EXT_RO_DIS; | |
8309 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
8310 | } | |
8311 | ||
8312 | return E1000_SUCCESS; | |
8313 | } | |
8314 | ||
8315 | /*************************************************************************** | |
8316 | * | |
8317 | * Get software semaphore FLAG bit (SWFLAG). | |
8318 | * SWFLAG is used to synchronize the access to all shared resource between | |
8319 | * SW, FW and HW. | |
8320 | * | |
8321 | * hw: Struct containing variables accessed by shared code | |
8322 | * | |
8323 | ***************************************************************************/ | |
e4c780b1 | 8324 | static int32_t |
d37ea5d5 AK |
8325 | e1000_get_software_flag(struct e1000_hw *hw) |
8326 | { | |
8327 | int32_t timeout = PHY_CFG_TIMEOUT; | |
8328 | uint32_t extcnf_ctrl; | |
8329 | ||
8330 | DEBUGFUNC("e1000_get_software_flag"); | |
8331 | ||
8332 | if (hw->mac_type == e1000_ich8lan) { | |
8333 | while (timeout) { | |
8334 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
8335 | extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; | |
8336 | E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl); | |
8337 | ||
8338 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
8339 | if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) | |
8340 | break; | |
f8ec4733 | 8341 | mdelay(1); |
d37ea5d5 AK |
8342 | timeout--; |
8343 | } | |
8344 | ||
8345 | if (!timeout) { | |
8346 | DEBUGOUT("FW or HW locks the resource too long.\n"); | |
8347 | return -E1000_ERR_CONFIG; | |
8348 | } | |
8349 | } | |
8350 | ||
8351 | return E1000_SUCCESS; | |
8352 | } | |
8353 | ||
8354 | /*************************************************************************** | |
8355 | * | |
8356 | * Release software semaphore FLAG bit (SWFLAG). | |
8357 | * SWFLAG is used to synchronize the access to all shared resource between | |
8358 | * SW, FW and HW. | |
8359 | * | |
8360 | * hw: Struct containing variables accessed by shared code | |
8361 | * | |
8362 | ***************************************************************************/ | |
e4c780b1 | 8363 | static void |
d37ea5d5 AK |
8364 | e1000_release_software_flag(struct e1000_hw *hw) |
8365 | { | |
8366 | uint32_t extcnf_ctrl; | |
8367 | ||
8368 | DEBUGFUNC("e1000_release_software_flag"); | |
8369 | ||
8370 | if (hw->mac_type == e1000_ich8lan) { | |
8371 | extcnf_ctrl= E1000_READ_REG(hw, EXTCNF_CTRL); | |
8372 | extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; | |
8373 | E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl); | |
8374 | } | |
8375 | ||
8376 | return; | |
8377 | } | |
8378 | ||
8379 | /*************************************************************************** | |
8380 | * | |
8381 | * Disable dynamic power down mode in ife PHY. | |
8382 | * It can be used to workaround band-gap problem. | |
8383 | * | |
8384 | * hw: Struct containing variables accessed by shared code | |
8385 | * | |
8386 | ***************************************************************************/ | |
e4c780b1 | 8387 | #if 0 |
d37ea5d5 AK |
8388 | int32_t |
8389 | e1000_ife_disable_dynamic_power_down(struct e1000_hw *hw) | |
8390 | { | |
8391 | uint16_t phy_data; | |
8392 | int32_t ret_val = E1000_SUCCESS; | |
8393 | ||
8394 | DEBUGFUNC("e1000_ife_disable_dynamic_power_down"); | |
8395 | ||
8396 | if (hw->phy_type == e1000_phy_ife) { | |
8397 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, &phy_data); | |
8398 | if (ret_val) | |
8399 | return ret_val; | |
8400 | ||
8401 | phy_data |= IFE_PSC_DISABLE_DYNAMIC_POWER_DOWN; | |
8402 | ret_val = e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, phy_data); | |
8403 | } | |
8404 | ||
8405 | return ret_val; | |
8406 | } | |
e4c780b1 | 8407 | #endif /* 0 */ |
d37ea5d5 AK |
8408 | |
8409 | /*************************************************************************** | |
8410 | * | |
8411 | * Enable dynamic power down mode in ife PHY. | |
8412 | * It can be used to workaround band-gap problem. | |
8413 | * | |
8414 | * hw: Struct containing variables accessed by shared code | |
8415 | * | |
8416 | ***************************************************************************/ | |
e4c780b1 | 8417 | #if 0 |
d37ea5d5 AK |
8418 | int32_t |
8419 | e1000_ife_enable_dynamic_power_down(struct e1000_hw *hw) | |
8420 | { | |
8421 | uint16_t phy_data; | |
8422 | int32_t ret_val = E1000_SUCCESS; | |
8423 | ||
8424 | DEBUGFUNC("e1000_ife_enable_dynamic_power_down"); | |
8425 | ||
8426 | if (hw->phy_type == e1000_phy_ife) { | |
8427 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, &phy_data); | |
8428 | if (ret_val) | |
8429 | return ret_val; | |
8430 | ||
8431 | phy_data &= ~IFE_PSC_DISABLE_DYNAMIC_POWER_DOWN; | |
8432 | ret_val = e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, phy_data); | |
8433 | } | |
8434 | ||
8435 | return ret_val; | |
8436 | } | |
e4c780b1 | 8437 | #endif /* 0 */ |
d37ea5d5 AK |
8438 | |
8439 | /****************************************************************************** | |
8440 | * Reads a 16 bit word or words from the EEPROM using the ICH8's flash access | |
8441 | * register. | |
8442 | * | |
8443 | * hw - Struct containing variables accessed by shared code | |
8444 | * offset - offset of word in the EEPROM to read | |
8445 | * data - word read from the EEPROM | |
8446 | * words - number of words to read | |
8447 | *****************************************************************************/ | |
e4c780b1 | 8448 | static int32_t |
d37ea5d5 AK |
8449 | e1000_read_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, |
8450 | uint16_t *data) | |
8451 | { | |
8452 | int32_t error = E1000_SUCCESS; | |
8453 | uint32_t flash_bank = 0; | |
8454 | uint32_t act_offset = 0; | |
8455 | uint32_t bank_offset = 0; | |
8456 | uint16_t word = 0; | |
8457 | uint16_t i = 0; | |
8458 | ||
8459 | /* We need to know which is the valid flash bank. In the event | |
8460 | * that we didn't allocate eeprom_shadow_ram, we may not be | |
8461 | * managing flash_bank. So it cannot be trusted and needs | |
8462 | * to be updated with each read. | |
8463 | */ | |
8464 | /* Value of bit 22 corresponds to the flash bank we're on. */ | |
8465 | flash_bank = (E1000_READ_REG(hw, EECD) & E1000_EECD_SEC1VAL) ? 1 : 0; | |
8466 | ||
8467 | /* Adjust offset appropriately if we're on bank 1 - adjust for word size */ | |
8468 | bank_offset = flash_bank * (hw->flash_bank_size * 2); | |
8469 | ||
8470 | error = e1000_get_software_flag(hw); | |
8471 | if (error != E1000_SUCCESS) | |
8472 | return error; | |
8473 | ||
8474 | for (i = 0; i < words; i++) { | |
8475 | if (hw->eeprom_shadow_ram != NULL && | |
8476 | hw->eeprom_shadow_ram[offset+i].modified == TRUE) { | |
8477 | data[i] = hw->eeprom_shadow_ram[offset+i].eeprom_word; | |
8478 | } else { | |
8479 | /* The NVM part needs a byte offset, hence * 2 */ | |
8480 | act_offset = bank_offset + ((offset + i) * 2); | |
8481 | error = e1000_read_ich8_word(hw, act_offset, &word); | |
8482 | if (error != E1000_SUCCESS) | |
8483 | break; | |
8484 | data[i] = word; | |
8485 | } | |
8486 | } | |
8487 | ||
8488 | e1000_release_software_flag(hw); | |
8489 | ||
8490 | return error; | |
8491 | } | |
8492 | ||
8493 | /****************************************************************************** | |
8494 | * Writes a 16 bit word or words to the EEPROM using the ICH8's flash access | |
8495 | * register. Actually, writes are written to the shadow ram cache in the hw | |
8496 | * structure hw->e1000_shadow_ram. e1000_commit_shadow_ram flushes this to | |
8497 | * the NVM, which occurs when the NVM checksum is updated. | |
8498 | * | |
8499 | * hw - Struct containing variables accessed by shared code | |
8500 | * offset - offset of word in the EEPROM to write | |
8501 | * words - number of words to write | |
8502 | * data - words to write to the EEPROM | |
8503 | *****************************************************************************/ | |
e4c780b1 | 8504 | static int32_t |
d37ea5d5 AK |
8505 | e1000_write_eeprom_ich8(struct e1000_hw *hw, uint16_t offset, uint16_t words, |
8506 | uint16_t *data) | |
8507 | { | |
8508 | uint32_t i = 0; | |
8509 | int32_t error = E1000_SUCCESS; | |
8510 | ||
8511 | error = e1000_get_software_flag(hw); | |
8512 | if (error != E1000_SUCCESS) | |
8513 | return error; | |
8514 | ||
8515 | /* A driver can write to the NVM only if it has eeprom_shadow_ram | |
8516 | * allocated. Subsequent reads to the modified words are read from | |
8517 | * this cached structure as well. Writes will only go into this | |
8518 | * cached structure unless it's followed by a call to | |
8519 | * e1000_update_eeprom_checksum() where it will commit the changes | |
8520 | * and clear the "modified" field. | |
8521 | */ | |
8522 | if (hw->eeprom_shadow_ram != NULL) { | |
8523 | for (i = 0; i < words; i++) { | |
8524 | if ((offset + i) < E1000_SHADOW_RAM_WORDS) { | |
8525 | hw->eeprom_shadow_ram[offset+i].modified = TRUE; | |
8526 | hw->eeprom_shadow_ram[offset+i].eeprom_word = data[i]; | |
8527 | } else { | |
8528 | error = -E1000_ERR_EEPROM; | |
8529 | break; | |
8530 | } | |
8531 | } | |
8532 | } else { | |
8533 | /* Drivers have the option to not allocate eeprom_shadow_ram as long | |
8534 | * as they don't perform any NVM writes. An attempt in doing so | |
8535 | * will result in this error. | |
8536 | */ | |
8537 | error = -E1000_ERR_EEPROM; | |
8538 | } | |
8539 | ||
8540 | e1000_release_software_flag(hw); | |
8541 | ||
8542 | return error; | |
8543 | } | |
8544 | ||
8545 | /****************************************************************************** | |
8546 | * This function does initial flash setup so that a new read/write/erase cycle | |
8547 | * can be started. | |
8548 | * | |
8549 | * hw - The pointer to the hw structure | |
8550 | ****************************************************************************/ | |
e4c780b1 | 8551 | static int32_t |
d37ea5d5 AK |
8552 | e1000_ich8_cycle_init(struct e1000_hw *hw) |
8553 | { | |
8554 | union ich8_hws_flash_status hsfsts; | |
8555 | int32_t error = E1000_ERR_EEPROM; | |
8556 | int32_t i = 0; | |
8557 | ||
8558 | DEBUGFUNC("e1000_ich8_cycle_init"); | |
8559 | ||
8560 | hsfsts.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFSTS); | |
8561 | ||
8562 | /* May be check the Flash Des Valid bit in Hw status */ | |
8563 | if (hsfsts.hsf_status.fldesvalid == 0) { | |
8564 | DEBUGOUT("Flash descriptor invalid. SW Sequencing must be used."); | |
8565 | return error; | |
8566 | } | |
8567 | ||
8568 | /* Clear FCERR in Hw status by writing 1 */ | |
8569 | /* Clear DAEL in Hw status by writing a 1 */ | |
8570 | hsfsts.hsf_status.flcerr = 1; | |
8571 | hsfsts.hsf_status.dael = 1; | |
8572 | ||
8573 | E1000_WRITE_ICH8_REG16(hw, ICH8_FLASH_HSFSTS, hsfsts.regval); | |
8574 | ||
8575 | /* Either we should have a hardware SPI cycle in progress bit to check | |
8576 | * against, in order to start a new cycle or FDONE bit should be changed | |
8577 | * in the hardware so that it is 1 after harware reset, which can then be | |
8578 | * used as an indication whether a cycle is in progress or has been | |
8579 | * completed .. we should also have some software semaphore mechanism to | |
8580 | * guard FDONE or the cycle in progress bit so that two threads access to | |
8581 | * those bits can be sequentiallized or a way so that 2 threads dont | |
8582 | * start the cycle at the same time */ | |
8583 | ||
8584 | if (hsfsts.hsf_status.flcinprog == 0) { | |
8585 | /* There is no cycle running at present, so we can start a cycle */ | |
8586 | /* Begin by setting Flash Cycle Done. */ | |
8587 | hsfsts.hsf_status.flcdone = 1; | |
8588 | E1000_WRITE_ICH8_REG16(hw, ICH8_FLASH_HSFSTS, hsfsts.regval); | |
8589 | error = E1000_SUCCESS; | |
8590 | } else { | |
8591 | /* otherwise poll for sometime so the current cycle has a chance | |
8592 | * to end before giving up. */ | |
8593 | for (i = 0; i < ICH8_FLASH_COMMAND_TIMEOUT; i++) { | |
8594 | hsfsts.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFSTS); | |
8595 | if (hsfsts.hsf_status.flcinprog == 0) { | |
8596 | error = E1000_SUCCESS; | |
8597 | break; | |
8598 | } | |
8599 | udelay(1); | |
8600 | } | |
8601 | if (error == E1000_SUCCESS) { | |
8602 | /* Successful in waiting for previous cycle to timeout, | |
8603 | * now set the Flash Cycle Done. */ | |
8604 | hsfsts.hsf_status.flcdone = 1; | |
8605 | E1000_WRITE_ICH8_REG16(hw, ICH8_FLASH_HSFSTS, hsfsts.regval); | |
8606 | } else { | |
8607 | DEBUGOUT("Flash controller busy, cannot get access"); | |
8608 | } | |
8609 | } | |
8610 | return error; | |
8611 | } | |
8612 | ||
8613 | /****************************************************************************** | |
8614 | * This function starts a flash cycle and waits for its completion | |
8615 | * | |
8616 | * hw - The pointer to the hw structure | |
8617 | ****************************************************************************/ | |
e4c780b1 | 8618 | static int32_t |
d37ea5d5 AK |
8619 | e1000_ich8_flash_cycle(struct e1000_hw *hw, uint32_t timeout) |
8620 | { | |
8621 | union ich8_hws_flash_ctrl hsflctl; | |
8622 | union ich8_hws_flash_status hsfsts; | |
8623 | int32_t error = E1000_ERR_EEPROM; | |
8624 | uint32_t i = 0; | |
8625 | ||
8626 | /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */ | |
8627 | hsflctl.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFCTL); | |
8628 | hsflctl.hsf_ctrl.flcgo = 1; | |
8629 | E1000_WRITE_ICH8_REG16(hw, ICH8_FLASH_HSFCTL, hsflctl.regval); | |
8630 | ||
8631 | /* wait till FDONE bit is set to 1 */ | |
8632 | do { | |
8633 | hsfsts.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFSTS); | |
8634 | if (hsfsts.hsf_status.flcdone == 1) | |
8635 | break; | |
8636 | udelay(1); | |
8637 | i++; | |
8638 | } while (i < timeout); | |
8639 | if (hsfsts.hsf_status.flcdone == 1 && hsfsts.hsf_status.flcerr == 0) { | |
8640 | error = E1000_SUCCESS; | |
8641 | } | |
8642 | return error; | |
8643 | } | |
8644 | ||
8645 | /****************************************************************************** | |
8646 | * Reads a byte or word from the NVM using the ICH8 flash access registers. | |
8647 | * | |
8648 | * hw - The pointer to the hw structure | |
8649 | * index - The index of the byte or word to read. | |
8650 | * size - Size of data to read, 1=byte 2=word | |
8651 | * data - Pointer to the word to store the value read. | |
8652 | *****************************************************************************/ | |
e4c780b1 | 8653 | static int32_t |
d37ea5d5 AK |
8654 | e1000_read_ich8_data(struct e1000_hw *hw, uint32_t index, |
8655 | uint32_t size, uint16_t* data) | |
8656 | { | |
8657 | union ich8_hws_flash_status hsfsts; | |
8658 | union ich8_hws_flash_ctrl hsflctl; | |
8659 | uint32_t flash_linear_address; | |
8660 | uint32_t flash_data = 0; | |
8661 | int32_t error = -E1000_ERR_EEPROM; | |
8662 | int32_t count = 0; | |
8663 | ||
8664 | DEBUGFUNC("e1000_read_ich8_data"); | |
8665 | ||
8666 | if (size < 1 || size > 2 || data == 0x0 || | |
8667 | index > ICH8_FLASH_LINEAR_ADDR_MASK) | |
8668 | return error; | |
8669 | ||
8670 | flash_linear_address = (ICH8_FLASH_LINEAR_ADDR_MASK & index) + | |
8671 | hw->flash_base_addr; | |
8672 | ||
8673 | do { | |
8674 | udelay(1); | |
8675 | /* Steps */ | |
8676 | error = e1000_ich8_cycle_init(hw); | |
8677 | if (error != E1000_SUCCESS) | |
8678 | break; | |
8679 | ||
8680 | hsflctl.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFCTL); | |
8681 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ | |
8682 | hsflctl.hsf_ctrl.fldbcount = size - 1; | |
8683 | hsflctl.hsf_ctrl.flcycle = ICH8_CYCLE_READ; | |
8684 | E1000_WRITE_ICH8_REG16(hw, ICH8_FLASH_HSFCTL, hsflctl.regval); | |
8685 | ||
8686 | /* Write the last 24 bits of index into Flash Linear address field in | |
8687 | * Flash Address */ | |
8688 | /* TODO: TBD maybe check the index against the size of flash */ | |
8689 | ||
8690 | E1000_WRITE_ICH8_REG(hw, ICH8_FLASH_FADDR, flash_linear_address); | |
8691 | ||
8692 | error = e1000_ich8_flash_cycle(hw, ICH8_FLASH_COMMAND_TIMEOUT); | |
8693 | ||
8694 | /* Check if FCERR is set to 1, if set to 1, clear it and try the whole | |
8695 | * sequence a few more times, else read in (shift in) the Flash Data0, | |
8696 | * the order is least significant byte first msb to lsb */ | |
8697 | if (error == E1000_SUCCESS) { | |
8698 | flash_data = E1000_READ_ICH8_REG(hw, ICH8_FLASH_FDATA0); | |
8699 | if (size == 1) { | |
8700 | *data = (uint8_t)(flash_data & 0x000000FF); | |
8701 | } else if (size == 2) { | |
8702 | *data = (uint16_t)(flash_data & 0x0000FFFF); | |
8703 | } | |
8704 | break; | |
8705 | } else { | |
8706 | /* If we've gotten here, then things are probably completely hosed, | |
8707 | * but if the error condition is detected, it won't hurt to give | |
8708 | * it another try...ICH8_FLASH_CYCLE_REPEAT_COUNT times. | |
8709 | */ | |
8710 | hsfsts.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFSTS); | |
8711 | if (hsfsts.hsf_status.flcerr == 1) { | |
8712 | /* Repeat for some time before giving up. */ | |
8713 | continue; | |
8714 | } else if (hsfsts.hsf_status.flcdone == 0) { | |
8715 | DEBUGOUT("Timeout error - flash cycle did not complete."); | |
8716 | break; | |
8717 | } | |
8718 | } | |
8719 | } while (count++ < ICH8_FLASH_CYCLE_REPEAT_COUNT); | |
8720 | ||
8721 | return error; | |
8722 | } | |
8723 | ||
8724 | /****************************************************************************** | |
8725 | * Writes One /two bytes to the NVM using the ICH8 flash access registers. | |
8726 | * | |
8727 | * hw - The pointer to the hw structure | |
8728 | * index - The index of the byte/word to read. | |
8729 | * size - Size of data to read, 1=byte 2=word | |
8730 | * data - The byte(s) to write to the NVM. | |
8731 | *****************************************************************************/ | |
e4c780b1 | 8732 | static int32_t |
d37ea5d5 AK |
8733 | e1000_write_ich8_data(struct e1000_hw *hw, uint32_t index, uint32_t size, |
8734 | uint16_t data) | |
8735 | { | |
8736 | union ich8_hws_flash_status hsfsts; | |
8737 | union ich8_hws_flash_ctrl hsflctl; | |
8738 | uint32_t flash_linear_address; | |
8739 | uint32_t flash_data = 0; | |
8740 | int32_t error = -E1000_ERR_EEPROM; | |
8741 | int32_t count = 0; | |
8742 | ||
8743 | DEBUGFUNC("e1000_write_ich8_data"); | |
8744 | ||
8745 | if (size < 1 || size > 2 || data > size * 0xff || | |
8746 | index > ICH8_FLASH_LINEAR_ADDR_MASK) | |
8747 | return error; | |
8748 | ||
8749 | flash_linear_address = (ICH8_FLASH_LINEAR_ADDR_MASK & index) + | |
8750 | hw->flash_base_addr; | |
8751 | ||
8752 | do { | |
8753 | udelay(1); | |
8754 | /* Steps */ | |
8755 | error = e1000_ich8_cycle_init(hw); | |
8756 | if (error != E1000_SUCCESS) | |
8757 | break; | |
8758 | ||
8759 | hsflctl.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFCTL); | |
8760 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ | |
8761 | hsflctl.hsf_ctrl.fldbcount = size -1; | |
8762 | hsflctl.hsf_ctrl.flcycle = ICH8_CYCLE_WRITE; | |
8763 | E1000_WRITE_ICH8_REG16(hw, ICH8_FLASH_HSFCTL, hsflctl.regval); | |
8764 | ||
8765 | /* Write the last 24 bits of index into Flash Linear address field in | |
8766 | * Flash Address */ | |
8767 | E1000_WRITE_ICH8_REG(hw, ICH8_FLASH_FADDR, flash_linear_address); | |
8768 | ||
8769 | if (size == 1) | |
8770 | flash_data = (uint32_t)data & 0x00FF; | |
8771 | else | |
8772 | flash_data = (uint32_t)data; | |
8773 | ||
8774 | E1000_WRITE_ICH8_REG(hw, ICH8_FLASH_FDATA0, flash_data); | |
8775 | ||
8776 | /* check if FCERR is set to 1 , if set to 1, clear it and try the whole | |
8777 | * sequence a few more times else done */ | |
8778 | error = e1000_ich8_flash_cycle(hw, ICH8_FLASH_COMMAND_TIMEOUT); | |
8779 | if (error == E1000_SUCCESS) { | |
8780 | break; | |
8781 | } else { | |
8782 | /* If we're here, then things are most likely completely hosed, | |
8783 | * but if the error condition is detected, it won't hurt to give | |
8784 | * it another try...ICH8_FLASH_CYCLE_REPEAT_COUNT times. | |
8785 | */ | |
8786 | hsfsts.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFSTS); | |
8787 | if (hsfsts.hsf_status.flcerr == 1) { | |
8788 | /* Repeat for some time before giving up. */ | |
8789 | continue; | |
8790 | } else if (hsfsts.hsf_status.flcdone == 0) { | |
8791 | DEBUGOUT("Timeout error - flash cycle did not complete."); | |
8792 | break; | |
8793 | } | |
8794 | } | |
8795 | } while (count++ < ICH8_FLASH_CYCLE_REPEAT_COUNT); | |
8796 | ||
8797 | return error; | |
8798 | } | |
8799 | ||
8800 | /****************************************************************************** | |
8801 | * Reads a single byte from the NVM using the ICH8 flash access registers. | |
8802 | * | |
8803 | * hw - pointer to e1000_hw structure | |
8804 | * index - The index of the byte to read. | |
8805 | * data - Pointer to a byte to store the value read. | |
8806 | *****************************************************************************/ | |
e4c780b1 | 8807 | static int32_t |
d37ea5d5 AK |
8808 | e1000_read_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t* data) |
8809 | { | |
8810 | int32_t status = E1000_SUCCESS; | |
8811 | uint16_t word = 0; | |
8812 | ||
8813 | status = e1000_read_ich8_data(hw, index, 1, &word); | |
8814 | if (status == E1000_SUCCESS) { | |
8815 | *data = (uint8_t)word; | |
8816 | } | |
8817 | ||
8818 | return status; | |
8819 | } | |
8820 | ||
8821 | /****************************************************************************** | |
8822 | * Writes a single byte to the NVM using the ICH8 flash access registers. | |
8823 | * Performs verification by reading back the value and then going through | |
8824 | * a retry algorithm before giving up. | |
8825 | * | |
8826 | * hw - pointer to e1000_hw structure | |
8827 | * index - The index of the byte to write. | |
8828 | * byte - The byte to write to the NVM. | |
8829 | *****************************************************************************/ | |
e4c780b1 | 8830 | static int32_t |
d37ea5d5 AK |
8831 | e1000_verify_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t byte) |
8832 | { | |
8833 | int32_t error = E1000_SUCCESS; | |
8834 | int32_t program_retries; | |
8835 | uint8_t temp_byte; | |
8836 | ||
8837 | e1000_write_ich8_byte(hw, index, byte); | |
8838 | udelay(100); | |
8839 | ||
8840 | for (program_retries = 0; program_retries < 100; program_retries++) { | |
8841 | e1000_read_ich8_byte(hw, index, &temp_byte); | |
8842 | if (temp_byte == byte) | |
8843 | break; | |
8844 | udelay(10); | |
8845 | e1000_write_ich8_byte(hw, index, byte); | |
8846 | udelay(100); | |
8847 | } | |
8848 | if (program_retries == 100) | |
8849 | error = E1000_ERR_EEPROM; | |
8850 | ||
8851 | return error; | |
8852 | } | |
8853 | ||
8854 | /****************************************************************************** | |
8855 | * Writes a single byte to the NVM using the ICH8 flash access registers. | |
8856 | * | |
8857 | * hw - pointer to e1000_hw structure | |
8858 | * index - The index of the byte to read. | |
8859 | * data - The byte to write to the NVM. | |
8860 | *****************************************************************************/ | |
e4c780b1 | 8861 | static int32_t |
d37ea5d5 AK |
8862 | e1000_write_ich8_byte(struct e1000_hw *hw, uint32_t index, uint8_t data) |
8863 | { | |
8864 | int32_t status = E1000_SUCCESS; | |
8865 | uint16_t word = (uint16_t)data; | |
8866 | ||
8867 | status = e1000_write_ich8_data(hw, index, 1, word); | |
8868 | ||
8869 | return status; | |
8870 | } | |
8871 | ||
8872 | /****************************************************************************** | |
8873 | * Reads a word from the NVM using the ICH8 flash access registers. | |
8874 | * | |
8875 | * hw - pointer to e1000_hw structure | |
8876 | * index - The starting byte index of the word to read. | |
8877 | * data - Pointer to a word to store the value read. | |
8878 | *****************************************************************************/ | |
e4c780b1 | 8879 | static int32_t |
d37ea5d5 AK |
8880 | e1000_read_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t *data) |
8881 | { | |
8882 | int32_t status = E1000_SUCCESS; | |
8883 | status = e1000_read_ich8_data(hw, index, 2, data); | |
8884 | return status; | |
8885 | } | |
8886 | ||
8887 | /****************************************************************************** | |
8888 | * Writes a word to the NVM using the ICH8 flash access registers. | |
8889 | * | |
8890 | * hw - pointer to e1000_hw structure | |
8891 | * index - The starting byte index of the word to read. | |
8892 | * data - The word to write to the NVM. | |
8893 | *****************************************************************************/ | |
e4c780b1 | 8894 | #if 0 |
d37ea5d5 AK |
8895 | int32_t |
8896 | e1000_write_ich8_word(struct e1000_hw *hw, uint32_t index, uint16_t data) | |
8897 | { | |
8898 | int32_t status = E1000_SUCCESS; | |
8899 | status = e1000_write_ich8_data(hw, index, 2, data); | |
8900 | return status; | |
8901 | } | |
e4c780b1 | 8902 | #endif /* 0 */ |
d37ea5d5 AK |
8903 | |
8904 | /****************************************************************************** | |
8905 | * Erases the bank specified. Each bank is a 4k block. Segments are 0 based. | |
8906 | * segment N is 4096 * N + flash_reg_addr. | |
8907 | * | |
8908 | * hw - pointer to e1000_hw structure | |
8909 | * segment - 0 for first segment, 1 for second segment, etc. | |
8910 | *****************************************************************************/ | |
e4c780b1 | 8911 | static int32_t |
d37ea5d5 AK |
8912 | e1000_erase_ich8_4k_segment(struct e1000_hw *hw, uint32_t segment) |
8913 | { | |
8914 | union ich8_hws_flash_status hsfsts; | |
8915 | union ich8_hws_flash_ctrl hsflctl; | |
8916 | uint32_t flash_linear_address; | |
8917 | int32_t count = 0; | |
8918 | int32_t error = E1000_ERR_EEPROM; | |
8919 | int32_t iteration, seg_size; | |
8920 | int32_t sector_size; | |
8921 | int32_t j = 0; | |
8922 | int32_t error_flag = 0; | |
8923 | ||
8924 | hsfsts.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFSTS); | |
8925 | ||
8926 | /* Determine HW Sector size: Read BERASE bits of Hw flash Status register */ | |
8927 | /* 00: The Hw sector is 256 bytes, hence we need to erase 16 | |
8928 | * consecutive sectors. The start index for the nth Hw sector can be | |
8929 | * calculated as = segment * 4096 + n * 256 | |
8930 | * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector. | |
8931 | * The start index for the nth Hw sector can be calculated | |
8932 | * as = segment * 4096 | |
8933 | * 10: Error condition | |
8934 | * 11: The Hw sector size is much bigger than the size asked to | |
8935 | * erase...error condition */ | |
8936 | if (hsfsts.hsf_status.berasesz == 0x0) { | |
8937 | /* Hw sector size 256 */ | |
8938 | sector_size = seg_size = ICH8_FLASH_SEG_SIZE_256; | |
8939 | iteration = ICH8_FLASH_SECTOR_SIZE / ICH8_FLASH_SEG_SIZE_256; | |
8940 | } else if (hsfsts.hsf_status.berasesz == 0x1) { | |
8941 | sector_size = seg_size = ICH8_FLASH_SEG_SIZE_4K; | |
8942 | iteration = 1; | |
8943 | } else if (hsfsts.hsf_status.berasesz == 0x3) { | |
8944 | sector_size = seg_size = ICH8_FLASH_SEG_SIZE_64K; | |
8945 | iteration = 1; | |
8946 | } else { | |
8947 | return error; | |
8948 | } | |
8949 | ||
8950 | for (j = 0; j < iteration ; j++) { | |
8951 | do { | |
8952 | count++; | |
8953 | /* Steps */ | |
8954 | error = e1000_ich8_cycle_init(hw); | |
8955 | if (error != E1000_SUCCESS) { | |
8956 | error_flag = 1; | |
8957 | break; | |
8958 | } | |
8959 | ||
8960 | /* Write a value 11 (block Erase) in Flash Cycle field in Hw flash | |
8961 | * Control */ | |
8962 | hsflctl.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFCTL); | |
8963 | hsflctl.hsf_ctrl.flcycle = ICH8_CYCLE_ERASE; | |
8964 | E1000_WRITE_ICH8_REG16(hw, ICH8_FLASH_HSFCTL, hsflctl.regval); | |
8965 | ||
8966 | /* Write the last 24 bits of an index within the block into Flash | |
8967 | * Linear address field in Flash Address. This probably needs to | |
8968 | * be calculated here based off the on-chip segment size and the | |
8969 | * software segment size assumed (4K) */ | |
8970 | /* TBD */ | |
8971 | flash_linear_address = segment * sector_size + j * seg_size; | |
8972 | flash_linear_address &= ICH8_FLASH_LINEAR_ADDR_MASK; | |
8973 | flash_linear_address += hw->flash_base_addr; | |
8974 | ||
8975 | E1000_WRITE_ICH8_REG(hw, ICH8_FLASH_FADDR, flash_linear_address); | |
8976 | ||
8977 | error = e1000_ich8_flash_cycle(hw, 1000000); | |
8978 | /* Check if FCERR is set to 1. If 1, clear it and try the whole | |
8979 | * sequence a few more times else Done */ | |
8980 | if (error == E1000_SUCCESS) { | |
8981 | break; | |
8982 | } else { | |
8983 | hsfsts.regval = E1000_READ_ICH8_REG16(hw, ICH8_FLASH_HSFSTS); | |
8984 | if (hsfsts.hsf_status.flcerr == 1) { | |
8985 | /* repeat for some time before giving up */ | |
8986 | continue; | |
8987 | } else if (hsfsts.hsf_status.flcdone == 0) { | |
8988 | error_flag = 1; | |
8989 | break; | |
8990 | } | |
8991 | } | |
8992 | } while ((count < ICH8_FLASH_CYCLE_REPEAT_COUNT) && !error_flag); | |
8993 | if (error_flag == 1) | |
8994 | break; | |
8995 | } | |
8996 | if (error_flag != 1) | |
8997 | error = E1000_SUCCESS; | |
8998 | return error; | |
8999 | } | |
9000 | ||
9001 | /****************************************************************************** | |
9002 | * | |
9003 | * Reverse duplex setting without breaking the link. | |
9004 | * | |
9005 | * hw: Struct containing variables accessed by shared code | |
9006 | * | |
9007 | *****************************************************************************/ | |
e4c780b1 | 9008 | #if 0 |
d37ea5d5 AK |
9009 | int32_t |
9010 | e1000_duplex_reversal(struct e1000_hw *hw) | |
9011 | { | |
9012 | int32_t ret_val; | |
9013 | uint16_t phy_data; | |
9014 | ||
9015 | if (hw->phy_type != e1000_phy_igp_3) | |
9016 | return E1000_SUCCESS; | |
9017 | ||
9018 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); | |
9019 | if (ret_val) | |
9020 | return ret_val; | |
9021 | ||
9022 | phy_data ^= MII_CR_FULL_DUPLEX; | |
9023 | ||
9024 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); | |
9025 | if (ret_val) | |
9026 | return ret_val; | |
9027 | ||
9028 | ret_val = e1000_read_phy_reg(hw, IGP3E1000_PHY_MISC_CTRL, &phy_data); | |
9029 | if (ret_val) | |
9030 | return ret_val; | |
9031 | ||
9032 | phy_data |= IGP3_PHY_MISC_DUPLEX_MANUAL_SET; | |
9033 | ret_val = e1000_write_phy_reg(hw, IGP3E1000_PHY_MISC_CTRL, phy_data); | |
9034 | ||
9035 | return ret_val; | |
9036 | } | |
e4c780b1 | 9037 | #endif /* 0 */ |
d37ea5d5 | 9038 | |
e4c780b1 | 9039 | static int32_t |
d37ea5d5 AK |
9040 | e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, |
9041 | uint32_t cnf_base_addr, uint32_t cnf_size) | |
9042 | { | |
9043 | uint32_t ret_val = E1000_SUCCESS; | |
9044 | uint16_t word_addr, reg_data, reg_addr; | |
9045 | uint16_t i; | |
9046 | ||
9047 | /* cnf_base_addr is in DWORD */ | |
9048 | word_addr = (uint16_t)(cnf_base_addr << 1); | |
9049 | ||
9050 | /* cnf_size is returned in size of dwords */ | |
9051 | for (i = 0; i < cnf_size; i++) { | |
9052 | ret_val = e1000_read_eeprom(hw, (word_addr + i*2), 1, ®_data); | |
9053 | if (ret_val) | |
9054 | return ret_val; | |
9055 | ||
9056 | ret_val = e1000_read_eeprom(hw, (word_addr + i*2 + 1), 1, ®_addr); | |
9057 | if (ret_val) | |
9058 | return ret_val; | |
9059 | ||
9060 | ret_val = e1000_get_software_flag(hw); | |
9061 | if (ret_val != E1000_SUCCESS) | |
9062 | return ret_val; | |
9063 | ||
9064 | ret_val = e1000_write_phy_reg_ex(hw, (uint32_t)reg_addr, reg_data); | |
9065 | ||
9066 | e1000_release_software_flag(hw); | |
9067 | } | |
9068 | ||
9069 | return ret_val; | |
9070 | } | |
9071 | ||
9072 | ||
e4c780b1 | 9073 | static int32_t |
d37ea5d5 AK |
9074 | e1000_init_lcd_from_nvm(struct e1000_hw *hw) |
9075 | { | |
9076 | uint32_t reg_data, cnf_base_addr, cnf_size, ret_val, loop; | |
9077 | ||
9078 | if (hw->phy_type != e1000_phy_igp_3) | |
9079 | return E1000_SUCCESS; | |
9080 | ||
9081 | /* Check if SW needs configure the PHY */ | |
9082 | reg_data = E1000_READ_REG(hw, FEXTNVM); | |
9083 | if (!(reg_data & FEXTNVM_SW_CONFIG)) | |
9084 | return E1000_SUCCESS; | |
9085 | ||
9086 | /* Wait for basic configuration completes before proceeding*/ | |
9087 | loop = 0; | |
9088 | do { | |
9089 | reg_data = E1000_READ_REG(hw, STATUS) & E1000_STATUS_LAN_INIT_DONE; | |
9090 | udelay(100); | |
9091 | loop++; | |
9092 | } while ((!reg_data) && (loop < 50)); | |
9093 | ||
9094 | /* Clear the Init Done bit for the next init event */ | |
9095 | reg_data = E1000_READ_REG(hw, STATUS); | |
9096 | reg_data &= ~E1000_STATUS_LAN_INIT_DONE; | |
9097 | E1000_WRITE_REG(hw, STATUS, reg_data); | |
9098 | ||
9099 | /* Make sure HW does not configure LCD from PHY extended configuration | |
9100 | before SW configuration */ | |
9101 | reg_data = E1000_READ_REG(hw, EXTCNF_CTRL); | |
9102 | if ((reg_data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) == 0x0000) { | |
9103 | reg_data = E1000_READ_REG(hw, EXTCNF_SIZE); | |
9104 | cnf_size = reg_data & E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH; | |
9105 | cnf_size >>= 16; | |
9106 | if (cnf_size) { | |
9107 | reg_data = E1000_READ_REG(hw, EXTCNF_CTRL); | |
9108 | cnf_base_addr = reg_data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER; | |
9109 | /* cnf_base_addr is in DWORD */ | |
9110 | cnf_base_addr >>= 16; | |
9111 | ||
9112 | /* Configure LCD from extended configuration region. */ | |
9113 | ret_val = e1000_init_lcd_from_nvm_config_region(hw, cnf_base_addr, | |
9114 | cnf_size); | |
9115 | if (ret_val) | |
9116 | return ret_val; | |
9117 | } | |
9118 | } | |
9119 | ||
9120 | return E1000_SUCCESS; | |
9121 | } | |
9122 | ||
9123 | ||
2d7edb92 | 9124 |