drivers/net/wireless/ath/ath9k/hw.c

   1 /*
   2  * Copyright (c) 2008-2009 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <linux/io.h>
  18 #include <asm/unaligned.h>
  19
  20 #include "hw.h"
  21 #include "ath9k.h"
  22 #include "initvals.h"
  23
  24 #define ATH9K_CLOCK_RATE_CCK            22
  25 #define ATH9K_CLOCK_RATE_5GHZ_OFDM      40
  26 #define ATH9K_CLOCK_RATE_2GHZ_OFDM      44
  27
  28 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type);
  29 static void ath9k_hw_set_regs(struct ath_hw *ah, struct ath9k_channel *chan);
  30 static u32 ath9k_hw_ini_fixup(struct ath_hw *ah,
  31                               struct ar5416_eeprom_def *pEepData,
  32                               u32 reg, u32 value);
  33 static void ath9k_hw_9280_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan);
  34 static void ath9k_hw_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan);
  35
  36 /********************/
  37 /* Helper Functions */
  38 /********************/
  39
  40 static u32 ath9k_hw_mac_usec(struct ath_hw *ah, u32 clks)
  41 {
  42         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
  43
  44         if (!ah->curchan) /* should really check for CCK instead */
  45                 return clks / ATH9K_CLOCK_RATE_CCK;
  46         if (conf->channel->band == IEEE80211_BAND_2GHZ)
  47                 return clks / ATH9K_CLOCK_RATE_2GHZ_OFDM;
  48
  49         return clks / ATH9K_CLOCK_RATE_5GHZ_OFDM;
  50 }
  51
  52 static u32 ath9k_hw_mac_to_usec(struct ath_hw *ah, u32 clks)
  53 {
  54         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
  55
  56         if (conf_is_ht40(conf))
  57                 return ath9k_hw_mac_usec(ah, clks) / 2;
  58         else
  59                 return ath9k_hw_mac_usec(ah, clks);
  60 }
  61
  62 static u32 ath9k_hw_mac_clks(struct ath_hw *ah, u32 usecs)
  63 {
  64         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
  65
  66         if (!ah->curchan) /* should really check for CCK instead */
  67                 return usecs *ATH9K_CLOCK_RATE_CCK;
  68         if (conf->channel->band == IEEE80211_BAND_2GHZ)
  69                 return usecs *ATH9K_CLOCK_RATE_2GHZ_OFDM;
  70         return usecs *ATH9K_CLOCK_RATE_5GHZ_OFDM;
  71 }
  72
  73 static u32 ath9k_hw_mac_to_clks(struct ath_hw *ah, u32 usecs)
  74 {
  75         struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
  76
  77         if (conf_is_ht40(conf))
  78                 return ath9k_hw_mac_clks(ah, usecs) * 2;
  79         else
  80                 return ath9k_hw_mac_clks(ah, usecs);
  81 }
  82
  83 bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
  84 {
  85         int i;
  86
  87         BUG_ON(timeout < AH_TIME_QUANTUM);
  88
  89         for (i = 0; i < (timeout / AH_TIME_QUANTUM); i++) {
  90                 if ((REG_READ(ah, reg) & mask) == val)
  91                         return true;
  92
  93                 udelay(AH_TIME_QUANTUM);
  94         }
  95
  96         ath_print(ath9k_hw_common(ah), ATH_DBG_ANY,
  97                   "timeout (%d us) on reg 0x%x: 0x%08x & 0x%08x != 0x%08x\n",
  98                   timeout, reg, REG_READ(ah, reg), mask, val);
  99
 100         return false;
 101 }
 102
 103 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
 104 {
 105         u32 retval;
 106         int i;
 107
 108         for (i = 0, retval = 0; i < n; i++) {
 109                 retval = (retval << 1) | (val & 1);
 110                 val >>= 1;
 111         }
 112         return retval;
 113 }
 114
 115 bool ath9k_get_channel_edges(struct ath_hw *ah,
 116                              u16 flags, u16 *low,
 117                              u16 *high)
 118 {
 119         struct ath9k_hw_capabilities *pCap = &ah->caps;
 120
 121         if (flags & CHANNEL_5GHZ) {
 122                 *low = pCap->low_5ghz_chan;
 123                 *high = pCap->high_5ghz_chan;
 124                 return true;
 125         }
 126         if ((flags & CHANNEL_2GHZ)) {
 127                 *low = pCap->low_2ghz_chan;
 128                 *high = pCap->high_2ghz_chan;
 129                 return true;
 130         }
 131         return false;
 132 }
 133
 134 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
 135                            const struct ath_rate_table *rates,
 136                            u32 frameLen, u16 rateix,
 137                            bool shortPreamble)
 138 {
 139         u32 bitsPerSymbol, numBits, numSymbols, phyTime, txTime;
 140         u32 kbps;
 141
 142         kbps = rates->info[rateix].ratekbps;
 143
 144         if (kbps == 0)
 145                 return 0;
 146
 147         switch (rates->info[rateix].phy) {
 148         case WLAN_RC_PHY_CCK:
 149                 phyTime = CCK_PREAMBLE_BITS + CCK_PLCP_BITS;
 150                 if (shortPreamble && rates->info[rateix].short_preamble)
 151                         phyTime >>= 1;
 152                 numBits = frameLen << 3;
 153                 txTime = CCK_SIFS_TIME + phyTime + ((numBits * 1000) / kbps);
 154                 break;
 155         case WLAN_RC_PHY_OFDM:
 156                 if (ah->curchan && IS_CHAN_QUARTER_RATE(ah->curchan)) {
 157                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_QUARTER) / 1000;
 158                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
 159                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
 160                         txTime = OFDM_SIFS_TIME_QUARTER
 161                                 + OFDM_PREAMBLE_TIME_QUARTER
 162                                 + (numSymbols * OFDM_SYMBOL_TIME_QUARTER);
 163                 } else if (ah->curchan &&
 164                            IS_CHAN_HALF_RATE(ah->curchan)) {
 165                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME_HALF) / 1000;
 166                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
 167                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
 168                         txTime = OFDM_SIFS_TIME_HALF +
 169                                 OFDM_PREAMBLE_TIME_HALF
 170                                 + (numSymbols * OFDM_SYMBOL_TIME_HALF);
 171                 } else {
 172                         bitsPerSymbol = (kbps * OFDM_SYMBOL_TIME) / 1000;
 173                         numBits = OFDM_PLCP_BITS + (frameLen << 3);
 174                         numSymbols = DIV_ROUND_UP(numBits, bitsPerSymbol);
 175                         txTime = OFDM_SIFS_TIME + OFDM_PREAMBLE_TIME
 176                                 + (numSymbols * OFDM_SYMBOL_TIME);
 177                 }
 178                 break;
 179         default:
 180                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
 181                           "Unknown phy %u (rate ix %u)\n",
 182                           rates->info[rateix].phy, rateix);
 183                 txTime = 0;
 184                 break;
 185         }
 186
 187         return txTime;
 188 }
 189
 190 void ath9k_hw_get_channel_centers(struct ath_hw *ah,
 191                                   struct ath9k_channel *chan,
 192                                   struct chan_centers *centers)
 193 {
 194         int8_t extoff;
 195
 196         if (!IS_CHAN_HT40(chan)) {
 197                 centers->ctl_center = centers->ext_center =
 198                         centers->synth_center = chan->channel;
 199                 return;
 200         }
 201
 202         if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
 203             (chan->chanmode == CHANNEL_G_HT40PLUS)) {
 204                 centers->synth_center =
 205                         chan->channel + HT40_CHANNEL_CENTER_SHIFT;
 206                 extoff = 1;
 207         } else {
 208                 centers->synth_center =
 209                         chan->channel - HT40_CHANNEL_CENTER_SHIFT;
 210                 extoff = -1;
 211         }
 212
 213         centers->ctl_center =
 214                 centers->synth_center - (extoff * HT40_CHANNEL_CENTER_SHIFT);
 215         /* 25 MHz spacing is supported by hw but not on upper layers */
 216         centers->ext_center =
 217                 centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
 218 }
 219
 220 /******************/
 221 /* Chip Revisions */
 222 /******************/
 223
 224 static void ath9k_hw_read_revisions(struct ath_hw *ah)
 225 {
 226         u32 val;
 227
 228         val = REG_READ(ah, AR_SREV) & AR_SREV_ID;
 229
 230         if (val == 0xFF) {
 231                 val = REG_READ(ah, AR_SREV);
 232                 ah->hw_version.macVersion =
 233                         (val & AR_SREV_VERSION2) >> AR_SREV_TYPE2_S;
 234                 ah->hw_version.macRev = MS(val, AR_SREV_REVISION2);
 235                 ah->is_pciexpress = (val & AR_SREV_TYPE2_HOST_MODE) ? 0 : 1;
 236         } else {
 237                 if (!AR_SREV_9100(ah))
 238                         ah->hw_version.macVersion = MS(val, AR_SREV_VERSION);
 239
 240                 ah->hw_version.macRev = val & AR_SREV_REVISION;
 241
 242                 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE)
 243                         ah->is_pciexpress = true;
 244         }
 245 }
 246
 247 static int ath9k_hw_get_radiorev(struct ath_hw *ah)
 248 {
 249         u32 val;
 250         int i;
 251
 252         REG_WRITE(ah, AR_PHY(0x36), 0x00007058);
 253
 254         for (i = 0; i < 8; i++)
 255                 REG_WRITE(ah, AR_PHY(0x20), 0x00010000);
 256         val = (REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
 257         val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);
 258
 259         return ath9k_hw_reverse_bits(val, 8);
 260 }
 261
 262 /************************************/
 263 /* HW Attach, Detach, Init Routines */
 264 /************************************/
 265
 266 static void ath9k_hw_disablepcie(struct ath_hw *ah)
 267 {
 268         if (AR_SREV_9100(ah))
 269                 return;
 270
 271         REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
 272         REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
 273         REG_WRITE(ah, AR_PCIE_SERDES, 0x28000029);
 274         REG_WRITE(ah, AR_PCIE_SERDES, 0x57160824);
 275         REG_WRITE(ah, AR_PCIE_SERDES, 0x25980579);
 276         REG_WRITE(ah, AR_PCIE_SERDES, 0x00000000);
 277         REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
 278         REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
 279         REG_WRITE(ah, AR_PCIE_SERDES, 0x000e1007);
 280
 281         REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
 282 }
 283
 284 static bool ath9k_hw_chip_test(struct ath_hw *ah)
 285 {
 286         struct ath_common *common = ath9k_hw_common(ah);
 287         u32 regAddr[2] = { AR_STA_ID0, AR_PHY_BASE + (8 << 2) };
 288         u32 regHold[2];
 289         u32 patternData[4] = { 0x55555555,
 290                                0xaaaaaaaa,
 291                                0x66666666,
 292                                0x99999999 };
 293         int i, j;
 294
 295         for (i = 0; i < 2; i++) {
 296                 u32 addr = regAddr[i];
 297                 u32 wrData, rdData;
 298
 299                 regHold[i] = REG_READ(ah, addr);
 300                 for (j = 0; j < 0x100; j++) {
 301                         wrData = (j << 16) | j;
 302                         REG_WRITE(ah, addr, wrData);
 303                         rdData = REG_READ(ah, addr);
 304                         if (rdData != wrData) {
 305                                 ath_print(common, ATH_DBG_FATAL,
 306                                           "address test failed "
 307                                           "addr: 0x%08x - wr:0x%08x != "
 308                                           "rd:0x%08x\n",
 309                                           addr, wrData, rdData);
 310                                 return false;
 311                         }
 312                 }
 313                 for (j = 0; j < 4; j++) {
 314                         wrData = patternData[j];
 315                         REG_WRITE(ah, addr, wrData);
 316                         rdData = REG_READ(ah, addr);
 317                         if (wrData != rdData) {
 318                                 ath_print(common, ATH_DBG_FATAL,
 319                                           "address test failed "
 320                                           "addr: 0x%08x - wr:0x%08x != "
 321                                           "rd:0x%08x\n",
 322                                           addr, wrData, rdData);
 323                                 return false;
 324                         }
 325                 }
 326                 REG_WRITE(ah, regAddr[i], regHold[i]);
 327         }
 328         udelay(100);
 329
 330         return true;
 331 }
 332
 333 static const char *ath9k_hw_devname(u16 devid)
 334 {
 335         switch (devid) {
 336         case AR5416_DEVID_PCI:
 337                 return "Atheros 5416";
 338         case AR5416_DEVID_PCIE:
 339                 return "Atheros 5418";
 340         case AR9160_DEVID_PCI:
 341                 return "Atheros 9160";
 342         case AR5416_AR9100_DEVID:
 343                 return "Atheros 9100";
 344         case AR9280_DEVID_PCI:
 345         case AR9280_DEVID_PCIE:
 346                 return "Atheros 9280";
 347         case AR9285_DEVID_PCIE:
 348                 return "Atheros 9285";
 349         case AR5416_DEVID_AR9287_PCI:
 350         case AR5416_DEVID_AR9287_PCIE:
 351                 return "Atheros 9287";
 352         }
 353
 354         return NULL;
 355 }
 356
 357 static void ath9k_hw_init_config(struct ath_hw *ah)
 358 {
 359         int i;
 360
 361         ah->config.dma_beacon_response_time = 2;
 362         ah->config.sw_beacon_response_time = 10;
 363         ah->config.additional_swba_backoff = 0;
 364         ah->config.ack_6mb = 0x0;
 365         ah->config.cwm_ignore_extcca = 0;
 366         ah->config.pcie_powersave_enable = 0;
 367         ah->config.pcie_clock_req = 0;
 368         ah->config.pcie_waen = 0;
 369         ah->config.analog_shiftreg = 1;
 370         ah->config.ht_enable = 1;
 371         ah->config.ofdm_trig_low = 200;
 372         ah->config.ofdm_trig_high = 500;
 373         ah->config.cck_trig_high = 200;
 374         ah->config.cck_trig_low = 100;
 375         ah->config.enable_ani = 1;
 376         ah->config.diversity_control = ATH9K_ANT_VARIABLE;
 377         ah->config.antenna_switch_swap = 0;
 378
 379         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
 380                 ah->config.spurchans[i][0] = AR_NO_SPUR;
 381                 ah->config.spurchans[i][1] = AR_NO_SPUR;
 382         }
 383
 384         ah->config.intr_mitigation = true;
 385
 386         /*
 387          * We need this for PCI devices only (Cardbus, PCI, miniPCI)
 388          * _and_ if on non-uniprocessor systems (Multiprocessor/HT).
 389          * This means we use it for all AR5416 devices, and the few
 390          * minor PCI AR9280 devices out there.
 391          *
 392          * Serialization is required because these devices do not handle
 393          * well the case of two concurrent reads/writes due to the latency
 394          * involved. During one read/write another read/write can be issued
 395          * on another CPU while the previous read/write may still be working
 396          * on our hardware, if we hit this case the hardware poops in a loop.
 397          * We prevent this by serializing reads and writes.
 398          *
 399          * This issue is not present on PCI-Express devices or pre-AR5416
 400          * devices (legacy, 802.11abg).
 401          */
 402         if (num_possible_cpus() > 1)
 403                 ah->config.serialize_regmode = SER_REG_MODE_AUTO;
 404 }
 405
 406 static void ath9k_hw_init_defaults(struct ath_hw *ah)
 407 {
 408         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
 409
 410         regulatory->country_code = CTRY_DEFAULT;
 411         regulatory->power_limit = MAX_RATE_POWER;
 412         regulatory->tp_scale = ATH9K_TP_SCALE_MAX;
 413
 414         ah->hw_version.magic = AR5416_MAGIC;
 415         ah->hw_version.subvendorid = 0;
 416
 417         ah->ah_flags = 0;
 418         if (ah->hw_version.devid == AR5416_AR9100_DEVID)
 419                 ah->hw_version.macVersion = AR_SREV_VERSION_9100;
 420         if (!AR_SREV_9100(ah))
 421                 ah->ah_flags = AH_USE_EEPROM;
 422
 423         ah->atim_window = 0;
 424         ah->sta_id1_defaults = AR_STA_ID1_CRPT_MIC_ENABLE;
 425         ah->beacon_interval = 100;
 426         ah->enable_32kHz_clock = DONT_USE_32KHZ;
 427         ah->slottime = (u32) -1;
 428         ah->acktimeout = (u32) -1;
 429         ah->ctstimeout = (u32) -1;
 430         ah->globaltxtimeout = (u32) -1;
 431
 432         ah->gbeacon_rate = 0;
 433
 434         ah->power_mode = ATH9K_PM_UNDEFINED;
 435 }
 436
 437 static int ath9k_hw_rfattach(struct ath_hw *ah)
 438 {
 439         bool rfStatus = false;
 440         int ecode = 0;
 441
 442         rfStatus = ath9k_hw_init_rf(ah, &ecode);
 443         if (!rfStatus) {
 444                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
 445                           "RF setup failed, status: %u\n", ecode);
 446                 return ecode;
 447         }
 448
 449         return 0;
 450 }
 451
 452 static int ath9k_hw_rf_claim(struct ath_hw *ah)
 453 {
 454         u32 val;
 455
 456         REG_WRITE(ah, AR_PHY(0), 0x00000007);
 457
 458         val = ath9k_hw_get_radiorev(ah);
 459         switch (val & AR_RADIO_SREV_MAJOR) {
 460         case 0:
 461                 val = AR_RAD5133_SREV_MAJOR;
 462                 break;
 463         case AR_RAD5133_SREV_MAJOR:
 464         case AR_RAD5122_SREV_MAJOR:
 465         case AR_RAD2133_SREV_MAJOR:
 466         case AR_RAD2122_SREV_MAJOR:
 467                 break;
 468         default:
 469                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
 470                           "Radio Chip Rev 0x%02X not supported\n",
 471                           val & AR_RADIO_SREV_MAJOR);
 472                 return -EOPNOTSUPP;
 473         }
 474
 475         ah->hw_version.analog5GhzRev = val;
 476
 477         return 0;
 478 }
 479
 480 static int ath9k_hw_init_macaddr(struct ath_hw *ah)
 481 {
 482         struct ath_common *common = ath9k_hw_common(ah);
 483         u32 sum;
 484         int i;
 485         u16 eeval;
 486
 487         sum = 0;
 488         for (i = 0; i < 3; i++) {
 489                 eeval = ah->eep_ops->get_eeprom(ah, AR_EEPROM_MAC(i));
 490                 sum += eeval;
 491                 common->macaddr[2 * i] = eeval >> 8;
 492                 common->macaddr[2 * i + 1] = eeval & 0xff;
 493         }
 494         if (sum == 0 || sum == 0xffff * 3)
 495                 return -EADDRNOTAVAIL;
 496
 497         return 0;
 498 }
 499
 500 static void ath9k_hw_init_rxgain_ini(struct ath_hw *ah)
 501 {
 502         u32 rxgain_type;
 503
 504         if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_17) {
 505                 rxgain_type = ah->eep_ops->get_eeprom(ah, EEP_RXGAIN_TYPE);
 506
 507                 if (rxgain_type == AR5416_EEP_RXGAIN_13DB_BACKOFF)
 508                         INIT_INI_ARRAY(&ah->iniModesRxGain,
 509                         ar9280Modes_backoff_13db_rxgain_9280_2,
 510                         ARRAY_SIZE(ar9280Modes_backoff_13db_rxgain_9280_2), 6);
 511                 else if (rxgain_type == AR5416_EEP_RXGAIN_23DB_BACKOFF)
 512                         INIT_INI_ARRAY(&ah->iniModesRxGain,
 513                         ar9280Modes_backoff_23db_rxgain_9280_2,
 514                         ARRAY_SIZE(ar9280Modes_backoff_23db_rxgain_9280_2), 6);
 515                 else
 516                         INIT_INI_ARRAY(&ah->iniModesRxGain,
 517                         ar9280Modes_original_rxgain_9280_2,
 518                         ARRAY_SIZE(ar9280Modes_original_rxgain_9280_2), 6);
 519         } else {
 520                 INIT_INI_ARRAY(&ah->iniModesRxGain,
 521                         ar9280Modes_original_rxgain_9280_2,
 522                         ARRAY_SIZE(ar9280Modes_original_rxgain_9280_2), 6);
 523         }
 524 }
 525
 526 static void ath9k_hw_init_txgain_ini(struct ath_hw *ah)
 527 {
 528         u32 txgain_type;
 529
 530         if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >= AR5416_EEP_MINOR_VER_19) {
 531                 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
 532
 533                 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
 534                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 535                         ar9280Modes_high_power_tx_gain_9280_2,
 536                         ARRAY_SIZE(ar9280Modes_high_power_tx_gain_9280_2), 6);
 537                 else
 538                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 539                         ar9280Modes_original_tx_gain_9280_2,
 540                         ARRAY_SIZE(ar9280Modes_original_tx_gain_9280_2), 6);
 541         } else {
 542                 INIT_INI_ARRAY(&ah->iniModesTxGain,
 543                 ar9280Modes_original_tx_gain_9280_2,
 544                 ARRAY_SIZE(ar9280Modes_original_tx_gain_9280_2), 6);
 545         }
 546 }
 547
 548 static int ath9k_hw_post_init(struct ath_hw *ah)
 549 {
 550         int ecode;
 551
 552         if (!ath9k_hw_chip_test(ah))
 553                 return -ENODEV;
 554
 555         ecode = ath9k_hw_rf_claim(ah);
 556         if (ecode != 0)
 557                 return ecode;
 558
 559         ecode = ath9k_hw_eeprom_init(ah);
 560         if (ecode != 0)
 561                 return ecode;
 562
 563         ath_print(ath9k_hw_common(ah), ATH_DBG_CONFIG,
 564                   "Eeprom VER: %d, REV: %d\n",
 565                   ah->eep_ops->get_eeprom_ver(ah),
 566                   ah->eep_ops->get_eeprom_rev(ah));
 567
 568         ecode = ath9k_hw_rfattach(ah);
 569         if (ecode != 0)
 570                 return ecode;
 571
 572         if (!AR_SREV_9100(ah)) {
 573                 ath9k_hw_ani_setup(ah);
 574                 ath9k_hw_ani_init(ah);
 575         }
 576
 577         return 0;
 578 }
 579
 580 static bool ath9k_hw_devid_supported(u16 devid)
 581 {
 582         switch (devid) {
 583         case AR5416_DEVID_PCI:
 584         case AR5416_DEVID_PCIE:
 585         case AR5416_AR9100_DEVID:
 586         case AR9160_DEVID_PCI:
 587         case AR9280_DEVID_PCI:
 588         case AR9280_DEVID_PCIE:
 589         case AR9285_DEVID_PCIE:
 590         case AR5416_DEVID_AR9287_PCI:
 591         case AR5416_DEVID_AR9287_PCIE:
 592                 return true;
 593         default:
 594                 break;
 595         }
 596         return false;
 597 }
 598
 599 static bool ath9k_hw_macversion_supported(u32 macversion)
 600 {
 601         switch (macversion) {
 602         case AR_SREV_VERSION_5416_PCI:
 603         case AR_SREV_VERSION_5416_PCIE:
 604         case AR_SREV_VERSION_9160:
 605         case AR_SREV_VERSION_9100:
 606         case AR_SREV_VERSION_9280:
 607         case AR_SREV_VERSION_9285:
 608         case AR_SREV_VERSION_9287:
 609                 return true;
 610         /* Not yet */
 611         case AR_SREV_VERSION_9271:
 612         default:
 613                 break;
 614         }
 615         return false;
 616 }
 617
 618 static void ath9k_hw_init_cal_settings(struct ath_hw *ah)
 619 {
 620         if (AR_SREV_9160_10_OR_LATER(ah)) {
 621                 if (AR_SREV_9280_10_OR_LATER(ah)) {
 622                         ah->iq_caldata.calData = &iq_cal_single_sample;
 623                         ah->adcgain_caldata.calData =
 624                                 &adc_gain_cal_single_sample;
 625                         ah->adcdc_caldata.calData =
 626                                 &adc_dc_cal_single_sample;
 627                         ah->adcdc_calinitdata.calData =
 628                                 &adc_init_dc_cal;
 629                 } else {
 630                         ah->iq_caldata.calData = &iq_cal_multi_sample;
 631                         ah->adcgain_caldata.calData =
 632                                 &adc_gain_cal_multi_sample;
 633                         ah->adcdc_caldata.calData =
 634                                 &adc_dc_cal_multi_sample;
 635                         ah->adcdc_calinitdata.calData =
 636                                 &adc_init_dc_cal;
 637                 }
 638                 ah->supp_cals = ADC_GAIN_CAL | ADC_DC_CAL | IQ_MISMATCH_CAL;
 639         }
 640 }
 641
 642 static void ath9k_hw_init_mode_regs(struct ath_hw *ah)
 643 {
 644         if (AR_SREV_9271(ah)) {
 645                 INIT_INI_ARRAY(&ah->iniModes, ar9271Modes_9271_1_0,
 646                                ARRAY_SIZE(ar9271Modes_9271_1_0), 6);
 647                 INIT_INI_ARRAY(&ah->iniCommon, ar9271Common_9271_1_0,
 648                                ARRAY_SIZE(ar9271Common_9271_1_0), 2);
 649                 return;
 650         }
 651
 652         if (AR_SREV_9287_11_OR_LATER(ah)) {
 653                 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1,
 654                                 ARRAY_SIZE(ar9287Modes_9287_1_1), 6);
 655                 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_1,
 656                                 ARRAY_SIZE(ar9287Common_9287_1_1), 2);
 657                 if (ah->config.pcie_clock_req)
 658                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 659                         ar9287PciePhy_clkreq_off_L1_9287_1_1,
 660                         ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_1), 2);
 661                 else
 662                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 663                         ar9287PciePhy_clkreq_always_on_L1_9287_1_1,
 664                         ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_1),
 665                                         2);
 666         } else if (AR_SREV_9287_10_OR_LATER(ah)) {
 667                 INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_0,
 668                                 ARRAY_SIZE(ar9287Modes_9287_1_0), 6);
 669                 INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_0,
 670                                 ARRAY_SIZE(ar9287Common_9287_1_0), 2);
 671
 672                 if (ah->config.pcie_clock_req)
 673                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 674                         ar9287PciePhy_clkreq_off_L1_9287_1_0,
 675                         ARRAY_SIZE(ar9287PciePhy_clkreq_off_L1_9287_1_0), 2);
 676                 else
 677                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 678                         ar9287PciePhy_clkreq_always_on_L1_9287_1_0,
 679                         ARRAY_SIZE(ar9287PciePhy_clkreq_always_on_L1_9287_1_0),
 680                                   2);
 681         } else if (AR_SREV_9285_12_OR_LATER(ah)) {
 682
 683
 684                 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285_1_2,
 685                                ARRAY_SIZE(ar9285Modes_9285_1_2), 6);
 686                 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285_1_2,
 687                                ARRAY_SIZE(ar9285Common_9285_1_2), 2);
 688
 689                 if (ah->config.pcie_clock_req) {
 690                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 691                         ar9285PciePhy_clkreq_off_L1_9285_1_2,
 692                         ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285_1_2), 2);
 693                 } else {
 694                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 695                         ar9285PciePhy_clkreq_always_on_L1_9285_1_2,
 696                         ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285_1_2),
 697                                   2);
 698                 }
 699         } else if (AR_SREV_9285_10_OR_LATER(ah)) {
 700                 INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285,
 701                                ARRAY_SIZE(ar9285Modes_9285), 6);
 702                 INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285,
 703                                ARRAY_SIZE(ar9285Common_9285), 2);
 704
 705                 if (ah->config.pcie_clock_req) {
 706                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 707                         ar9285PciePhy_clkreq_off_L1_9285,
 708                         ARRAY_SIZE(ar9285PciePhy_clkreq_off_L1_9285), 2);
 709                 } else {
 710                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 711                         ar9285PciePhy_clkreq_always_on_L1_9285,
 712                         ARRAY_SIZE(ar9285PciePhy_clkreq_always_on_L1_9285), 2);
 713                 }
 714         } else if (AR_SREV_9280_20_OR_LATER(ah)) {
 715                 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280_2,
 716                                ARRAY_SIZE(ar9280Modes_9280_2), 6);
 717                 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280_2,
 718                                ARRAY_SIZE(ar9280Common_9280_2), 2);
 719
 720                 if (ah->config.pcie_clock_req) {
 721                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 722                                ar9280PciePhy_clkreq_off_L1_9280,
 723                                ARRAY_SIZE(ar9280PciePhy_clkreq_off_L1_9280),2);
 724                 } else {
 725                         INIT_INI_ARRAY(&ah->iniPcieSerdes,
 726                                ar9280PciePhy_clkreq_always_on_L1_9280,
 727                                ARRAY_SIZE(ar9280PciePhy_clkreq_always_on_L1_9280), 2);
 728                 }
 729                 INIT_INI_ARRAY(&ah->iniModesAdditional,
 730                                ar9280Modes_fast_clock_9280_2,
 731                                ARRAY_SIZE(ar9280Modes_fast_clock_9280_2), 3);
 732         } else if (AR_SREV_9280_10_OR_LATER(ah)) {
 733                 INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280,
 734                                ARRAY_SIZE(ar9280Modes_9280), 6);
 735                 INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280,
 736                                ARRAY_SIZE(ar9280Common_9280), 2);
 737         } else if (AR_SREV_9160_10_OR_LATER(ah)) {
 738                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9160,
 739                                ARRAY_SIZE(ar5416Modes_9160), 6);
 740                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9160,
 741                                ARRAY_SIZE(ar5416Common_9160), 2);
 742                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9160,
 743                                ARRAY_SIZE(ar5416Bank0_9160), 2);
 744                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9160,
 745                                ARRAY_SIZE(ar5416BB_RfGain_9160), 3);
 746                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9160,
 747                                ARRAY_SIZE(ar5416Bank1_9160), 2);
 748                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9160,
 749                                ARRAY_SIZE(ar5416Bank2_9160), 2);
 750                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9160,
 751                                ARRAY_SIZE(ar5416Bank3_9160), 3);
 752                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9160,
 753                                ARRAY_SIZE(ar5416Bank6_9160), 3);
 754                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9160,
 755                                ARRAY_SIZE(ar5416Bank6TPC_9160), 3);
 756                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9160,
 757                                ARRAY_SIZE(ar5416Bank7_9160), 2);
 758                 if (AR_SREV_9160_11(ah)) {
 759                         INIT_INI_ARRAY(&ah->iniAddac,
 760                                        ar5416Addac_91601_1,
 761                                        ARRAY_SIZE(ar5416Addac_91601_1), 2);
 762                 } else {
 763                         INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9160,
 764                                        ARRAY_SIZE(ar5416Addac_9160), 2);
 765                 }
 766         } else if (AR_SREV_9100_OR_LATER(ah)) {
 767                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9100,
 768                                ARRAY_SIZE(ar5416Modes_9100), 6);
 769                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9100,
 770                                ARRAY_SIZE(ar5416Common_9100), 2);
 771                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0_9100,
 772                                ARRAY_SIZE(ar5416Bank0_9100), 2);
 773                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain_9100,
 774                                ARRAY_SIZE(ar5416BB_RfGain_9100), 3);
 775                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1_9100,
 776                                ARRAY_SIZE(ar5416Bank1_9100), 2);
 777                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2_9100,
 778                                ARRAY_SIZE(ar5416Bank2_9100), 2);
 779                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3_9100,
 780                                ARRAY_SIZE(ar5416Bank3_9100), 3);
 781                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6_9100,
 782                                ARRAY_SIZE(ar5416Bank6_9100), 3);
 783                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC_9100,
 784                                ARRAY_SIZE(ar5416Bank6TPC_9100), 3);
 785                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7_9100,
 786                                ARRAY_SIZE(ar5416Bank7_9100), 2);
 787                 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9100,
 788                                ARRAY_SIZE(ar5416Addac_9100), 2);
 789         } else {
 790                 INIT_INI_ARRAY(&ah->iniModes, ar5416Modes,
 791                                ARRAY_SIZE(ar5416Modes), 6);
 792                 INIT_INI_ARRAY(&ah->iniCommon, ar5416Common,
 793                                ARRAY_SIZE(ar5416Common), 2);
 794                 INIT_INI_ARRAY(&ah->iniBank0, ar5416Bank0,
 795                                ARRAY_SIZE(ar5416Bank0), 2);
 796                 INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain,
 797                                ARRAY_SIZE(ar5416BB_RfGain), 3);
 798                 INIT_INI_ARRAY(&ah->iniBank1, ar5416Bank1,
 799                                ARRAY_SIZE(ar5416Bank1), 2);
 800                 INIT_INI_ARRAY(&ah->iniBank2, ar5416Bank2,
 801                                ARRAY_SIZE(ar5416Bank2), 2);
 802                 INIT_INI_ARRAY(&ah->iniBank3, ar5416Bank3,
 803                                ARRAY_SIZE(ar5416Bank3), 3);
 804                 INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6,
 805                                ARRAY_SIZE(ar5416Bank6), 3);
 806                 INIT_INI_ARRAY(&ah->iniBank6TPC, ar5416Bank6TPC,
 807                                ARRAY_SIZE(ar5416Bank6TPC), 3);
 808                 INIT_INI_ARRAY(&ah->iniBank7, ar5416Bank7,
 809                                ARRAY_SIZE(ar5416Bank7), 2);
 810                 INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac,
 811                                ARRAY_SIZE(ar5416Addac), 2);
 812         }
 813 }
 814
 815 static void ath9k_hw_init_mode_gain_regs(struct ath_hw *ah)
 816 {
 817         if (AR_SREV_9287_11_OR_LATER(ah))
 818                 INIT_INI_ARRAY(&ah->iniModesRxGain,
 819                 ar9287Modes_rx_gain_9287_1_1,
 820                 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_1), 6);
 821         else if (AR_SREV_9287_10(ah))
 822                 INIT_INI_ARRAY(&ah->iniModesRxGain,
 823                 ar9287Modes_rx_gain_9287_1_0,
 824                 ARRAY_SIZE(ar9287Modes_rx_gain_9287_1_0), 6);
 825         else if (AR_SREV_9280_20(ah))
 826                 ath9k_hw_init_rxgain_ini(ah);
 827
 828         if (AR_SREV_9287_11_OR_LATER(ah)) {
 829                 INIT_INI_ARRAY(&ah->iniModesTxGain,
 830                 ar9287Modes_tx_gain_9287_1_1,
 831                 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_1), 6);
 832         } else if (AR_SREV_9287_10(ah)) {
 833                 INIT_INI_ARRAY(&ah->iniModesTxGain,
 834                 ar9287Modes_tx_gain_9287_1_0,
 835                 ARRAY_SIZE(ar9287Modes_tx_gain_9287_1_0), 6);
 836         } else if (AR_SREV_9280_20(ah)) {
 837                 ath9k_hw_init_txgain_ini(ah);
 838         } else if (AR_SREV_9285_12_OR_LATER(ah)) {
 839                 u32 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
 840
 841                 /* txgain table */
 842                 if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER) {
 843                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 844                         ar9285Modes_high_power_tx_gain_9285_1_2,
 845                         ARRAY_SIZE(ar9285Modes_high_power_tx_gain_9285_1_2), 6);
 846                 } else {
 847                         INIT_INI_ARRAY(&ah->iniModesTxGain,
 848                         ar9285Modes_original_tx_gain_9285_1_2,
 849                         ARRAY_SIZE(ar9285Modes_original_tx_gain_9285_1_2), 6);
 850                 }
 851
 852         }
 853 }
 854
 855 static void ath9k_hw_init_11a_eeprom_fix(struct ath_hw *ah)
 856 {
 857         u32 i, j;
 858
 859         if ((ah->hw_version.devid == AR9280_DEVID_PCI) &&
 860             test_bit(ATH9K_MODE_11A, ah->caps.wireless_modes)) {
 861
 862                 /* EEPROM Fixup */
 863                 for (i = 0; i < ah->iniModes.ia_rows; i++) {
 864                         u32 reg = INI_RA(&ah->iniModes, i, 0);
 865
 866                         for (j = 1; j < ah->iniModes.ia_columns; j++) {
 867                                 u32 val = INI_RA(&ah->iniModes, i, j);
 868
 869                                 INI_RA(&ah->iniModes, i, j) =
 870                                         ath9k_hw_ini_fixup(ah,
 871                                                            &ah->eeprom.def,
 872                                                            reg, val);
 873                         }
 874                 }
 875         }
 876 }
 877
 878 int ath9k_hw_init(struct ath_hw *ah)
 879 {
 880         struct ath_common *common = ath9k_hw_common(ah);
 881         int r = 0;
 882
 883         if (!ath9k_hw_devid_supported(ah->hw_version.devid))
 884                 return -EOPNOTSUPP;
 885
 886         ath9k_hw_init_defaults(ah);
 887         ath9k_hw_init_config(ah);
 888
 889         if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON)) {
 890                 ath_print(common, ATH_DBG_FATAL,
 891                           "Couldn't reset chip\n");
 892                 return -EIO;
 893         }
 894
 895         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE)) {
 896                 ath_print(common, ATH_DBG_FATAL, "Couldn't wakeup chip\n");
 897                 return -EIO;
 898         }
 899
 900         if (ah->config.serialize_regmode == SER_REG_MODE_AUTO) {
 901                 if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI ||
 902                     (AR_SREV_9280(ah) && !ah->is_pciexpress)) {
 903                         ah->config.serialize_regmode =
 904                                 SER_REG_MODE_ON;
 905                 } else {
 906                         ah->config.serialize_regmode =
 907                                 SER_REG_MODE_OFF;
 908                 }
 909         }
 910
 911         ath_print(common, ATH_DBG_RESET, "serialize_regmode is %d\n",
 912                 ah->config.serialize_regmode);
 913
 914         if (!ath9k_hw_macversion_supported(ah->hw_version.macVersion)) {
 915                 ath_print(common, ATH_DBG_FATAL,
 916                           "Mac Chip Rev 0x%02x.%x is not supported by "
 917                           "this driver\n", ah->hw_version.macVersion,
 918                           ah->hw_version.macRev);
 919                 return -EOPNOTSUPP;
 920         }
 921
 922         if (AR_SREV_9100(ah)) {
 923                 ah->iq_caldata.calData = &iq_cal_multi_sample;
 924                 ah->supp_cals = IQ_MISMATCH_CAL;
 925                 ah->is_pciexpress = false;
 926         }
 927
 928         if (AR_SREV_9271(ah))
 929                 ah->is_pciexpress = false;
 930
 931         ah->hw_version.phyRev = REG_READ(ah, AR_PHY_CHIP_ID);
 932
 933         ath9k_hw_init_cal_settings(ah);
 934
 935         ah->ani_function = ATH9K_ANI_ALL;
 936         if (AR_SREV_9280_10_OR_LATER(ah))
 937                 ah->ani_function &= ~ATH9K_ANI_NOISE_IMMUNITY_LEVEL;
 938
 939         ath9k_hw_init_mode_regs(ah);
 940
 941         if (ah->is_pciexpress)
 942                 ath9k_hw_configpcipowersave(ah, 0, 0);
 943         else
 944                 ath9k_hw_disablepcie(ah);
 945
 946         r = ath9k_hw_post_init(ah);
 947         if (r)
 948                 return r;
 949
 950         ath9k_hw_init_mode_gain_regs(ah);
 951         ath9k_hw_fill_cap_info(ah);
 952         ath9k_hw_init_11a_eeprom_fix(ah);
 953
 954         r = ath9k_hw_init_macaddr(ah);
 955         if (r) {
 956                 ath_print(common, ATH_DBG_FATAL,
 957                           "Failed to initialize MAC address\n");
 958                 return r;
 959         }
 960
 961         if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
 962                 ah->tx_trig_level = (AR_FTRIG_256B >> AR_FTRIG_S);
 963         else
 964                 ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
 965
 966         ath9k_init_nfcal_hist_buffer(ah);
 967
 968         return 0;
 969 }
 970
 971 static void ath9k_hw_init_bb(struct ath_hw *ah,
 972                              struct ath9k_channel *chan)
 973 {
 974         u32 synthDelay;
 975
 976         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 977         if (IS_CHAN_B(chan))
 978                 synthDelay = (4 * synthDelay) / 22;
 979         else
 980                 synthDelay /= 10;
 981
 982         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
 983
 984         udelay(synthDelay + BASE_ACTIVATE_DELAY);
 985 }
 986
 987 static void ath9k_hw_init_qos(struct ath_hw *ah)
 988 {
 989         REG_WRITE(ah, AR_MIC_QOS_CONTROL, 0x100aa);
 990         REG_WRITE(ah, AR_MIC_QOS_SELECT, 0x3210);
 991
 992         REG_WRITE(ah, AR_QOS_NO_ACK,
 993                   SM(2, AR_QOS_NO_ACK_TWO_BIT) |
 994                   SM(5, AR_QOS_NO_ACK_BIT_OFF) |
 995                   SM(0, AR_QOS_NO_ACK_BYTE_OFF));
 996
 997         REG_WRITE(ah, AR_TXOP_X, AR_TXOP_X_VAL);
 998         REG_WRITE(ah, AR_TXOP_0_3, 0xFFFFFFFF);
 999         REG_WRITE(ah, AR_TXOP_4_7, 0xFFFFFFFF);
1000         REG_WRITE(ah, AR_TXOP_8_11, 0xFFFFFFFF);
1001         REG_WRITE(ah, AR_TXOP_12_15, 0xFFFFFFFF);
1002 }
1003
1004 static void ath9k_hw_init_pll(struct ath_hw *ah,
1005                               struct ath9k_channel *chan)
1006 {
1007         u32 pll;
1008
1009         if (AR_SREV_9100(ah)) {
1010                 if (chan && IS_CHAN_5GHZ(chan))
1011                         pll = 0x1450;
1012                 else
1013                         pll = 0x1458;
1014         } else {
1015                 if (AR_SREV_9280_10_OR_LATER(ah)) {
1016                         pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1017
1018                         if (chan && IS_CHAN_HALF_RATE(chan))
1019                                 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1020                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1021                                 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1022
1023                         if (chan && IS_CHAN_5GHZ(chan)) {
1024                                 pll |= SM(0x28, AR_RTC_9160_PLL_DIV);
1025
1026
1027                                 if (AR_SREV_9280_20(ah)) {
1028                                         if (((chan->channel % 20) == 0)
1029                                             || ((chan->channel % 10) == 0))
1030                                                 pll = 0x2850;
1031                                         else
1032                                                 pll = 0x142c;
1033                                 }
1034                         } else {
1035                                 pll |= SM(0x2c, AR_RTC_9160_PLL_DIV);
1036                         }
1037
1038                 } else if (AR_SREV_9160_10_OR_LATER(ah)) {
1039
1040                         pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
1041
1042                         if (chan && IS_CHAN_HALF_RATE(chan))
1043                                 pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
1044                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1045                                 pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
1046
1047                         if (chan && IS_CHAN_5GHZ(chan))
1048                                 pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
1049                         else
1050                                 pll |= SM(0x58, AR_RTC_9160_PLL_DIV);
1051                 } else {
1052                         pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
1053
1054                         if (chan && IS_CHAN_HALF_RATE(chan))
1055                                 pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
1056                         else if (chan && IS_CHAN_QUARTER_RATE(chan))
1057                                 pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
1058
1059                         if (chan && IS_CHAN_5GHZ(chan))
1060                                 pll |= SM(0xa, AR_RTC_PLL_DIV);
1061                         else
1062                                 pll |= SM(0xb, AR_RTC_PLL_DIV);
1063                 }
1064         }
1065         REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
1066
1067         udelay(RTC_PLL_SETTLE_DELAY);
1068
1069         REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
1070 }
1071
1072 static void ath9k_hw_init_chain_masks(struct ath_hw *ah)
1073 {
1074         int rx_chainmask, tx_chainmask;
1075
1076         rx_chainmask = ah->rxchainmask;
1077         tx_chainmask = ah->txchainmask;
1078
1079         switch (rx_chainmask) {
1080         case 0x5:
1081                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1082                             AR_PHY_SWAP_ALT_CHAIN);
1083         case 0x3:
1084                 if (((ah)->hw_version.macVersion <= AR_SREV_VERSION_9160)) {
1085                         REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
1086                         REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
1087                         break;
1088                 }
1089         case 0x1:
1090         case 0x2:
1091         case 0x7:
1092                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
1093                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
1094                 break;
1095         default:
1096                 break;
1097         }
1098
1099         REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
1100         if (tx_chainmask == 0x5) {
1101                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
1102                             AR_PHY_SWAP_ALT_CHAIN);
1103         }
1104         if (AR_SREV_9100(ah))
1105                 REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
1106                           REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
1107 }
1108
1109 static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
1110                                           enum nl80211_iftype opmode)
1111 {
1112         ah->mask_reg = AR_IMR_TXERR |
1113                 AR_IMR_TXURN |
1114                 AR_IMR_RXERR |
1115                 AR_IMR_RXORN |
1116                 AR_IMR_BCNMISC;
1117
1118         if (ah->config.intr_mitigation)
1119                 ah->mask_reg |= AR_IMR_RXINTM | AR_IMR_RXMINTR;
1120         else
1121                 ah->mask_reg |= AR_IMR_RXOK;
1122
1123         ah->mask_reg |= AR_IMR_TXOK;
1124
1125         if (opmode == NL80211_IFTYPE_AP)
1126                 ah->mask_reg |= AR_IMR_MIB;
1127
1128         REG_WRITE(ah, AR_IMR, ah->mask_reg);
1129         REG_WRITE(ah, AR_IMR_S2, REG_READ(ah, AR_IMR_S2) | AR_IMR_S2_GTT);
1130
1131         if (!AR_SREV_9100(ah)) {
1132                 REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
1133                 REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
1134                 REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
1135         }
1136 }
1137
1138 static bool ath9k_hw_set_ack_timeout(struct ath_hw *ah, u32 us)
1139 {
1140         if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_ACK))) {
1141                 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1142                           "bad ack timeout %u\n", us);
1143                 ah->acktimeout = (u32) -1;
1144                 return false;
1145         } else {
1146                 REG_RMW_FIELD(ah, AR_TIME_OUT,
1147                               AR_TIME_OUT_ACK, ath9k_hw_mac_to_clks(ah, us));
1148                 ah->acktimeout = us;
1149                 return true;
1150         }
1151 }
1152
1153 static bool ath9k_hw_set_cts_timeout(struct ath_hw *ah, u32 us)
1154 {
1155         if (us > ath9k_hw_mac_to_usec(ah, MS(0xffffffff, AR_TIME_OUT_CTS))) {
1156                 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1157                           "bad cts timeout %u\n", us);
1158                 ah->ctstimeout = (u32) -1;
1159                 return false;
1160         } else {
1161                 REG_RMW_FIELD(ah, AR_TIME_OUT,
1162                               AR_TIME_OUT_CTS, ath9k_hw_mac_to_clks(ah, us));
1163                 ah->ctstimeout = us;
1164                 return true;
1165         }
1166 }
1167
1168 static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
1169 {
1170         if (tu > 0xFFFF) {
1171                 ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
1172                           "bad global tx timeout %u\n", tu);
1173                 ah->globaltxtimeout = (u32) -1;
1174                 return false;
1175         } else {
1176                 REG_RMW_FIELD(ah, AR_GTXTO, AR_GTXTO_TIMEOUT_LIMIT, tu);
1177                 ah->globaltxtimeout = tu;
1178                 return true;
1179         }
1180 }
1181
1182 static void ath9k_hw_init_user_settings(struct ath_hw *ah)
1183 {
1184         ath_print(ath9k_hw_common(ah), ATH_DBG_RESET, "ah->misc_mode 0x%x\n",
1185                   ah->misc_mode);
1186
1187         if (ah->misc_mode != 0)
1188                 REG_WRITE(ah, AR_PCU_MISC,
1189                           REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
1190         if (ah->slottime != (u32) -1)
1191                 ath9k_hw_setslottime(ah, ah->slottime);
1192         if (ah->acktimeout != (u32) -1)
1193                 ath9k_hw_set_ack_timeout(ah, ah->acktimeout);
1194         if (ah->ctstimeout != (u32) -1)
1195                 ath9k_hw_set_cts_timeout(ah, ah->ctstimeout);
1196         if (ah->globaltxtimeout != (u32) -1)
1197                 ath9k_hw_set_global_txtimeout(ah, ah->globaltxtimeout);
1198 }
1199
1200 const char *ath9k_hw_probe(u16 vendorid, u16 devid)
1201 {
1202         return vendorid == ATHEROS_VENDOR_ID ?
1203                 ath9k_hw_devname(devid) : NULL;
1204 }
1205
1206 void ath9k_hw_detach(struct ath_hw *ah)
1207 {
1208         if (!AR_SREV_9100(ah))
1209                 ath9k_hw_ani_disable(ah);
1210
1211         ath9k_hw_rf_free(ah);
1212         ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
1213         kfree(ah);
1214         ah = NULL;
1215 }
1216
1217 /*******/
1218 /* INI */
1219 /*******/
1220
1221 static void ath9k_hw_override_ini(struct ath_hw *ah,
1222                                   struct ath9k_channel *chan)
1223 {
1224         u32 val;
1225
1226         if (AR_SREV_9271(ah)) {
1227                 /*
1228                  * Enable spectral scan to solution for issues with stuck
1229                  * beacons on AR9271 1.0. The beacon stuck issue is not seeon on
1230                  * AR9271 1.1
1231                  */
1232                 if (AR_SREV_9271_10(ah)) {
1233                         val = REG_READ(ah, AR_PHY_SPECTRAL_SCAN) | AR_PHY_SPECTRAL_SCAN_ENABLE;
1234                         REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val);
1235                 }
1236                 else if (AR_SREV_9271_11(ah))
1237                         /*
1238                          * change AR_PHY_RF_CTL3 setting to fix MAC issue
1239                          * present on AR9271 1.1
1240                          */
1241                         REG_WRITE(ah, AR_PHY_RF_CTL3, 0x3a020001);
1242                 return;
1243         }
1244
1245         /*
1246          * Set the RX_ABORT and RX_DIS and clear if off only after
1247          * RXE is set for MAC. This prevents frames with corrupted
1248          * descriptor status.
1249          */
1250         REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
1251
1252         if (AR_SREV_9280_10_OR_LATER(ah)) {
1253                 val = REG_READ(ah, AR_PCU_MISC_MODE2) &
1254                                (~AR_PCU_MISC_MODE2_HWWAR1);
1255
1256                 if (AR_SREV_9287_10_OR_LATER(ah))
1257                         val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
1258
1259                 REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
1260         }
1261
1262         if (!AR_SREV_5416_20_OR_LATER(ah) ||
1263             AR_SREV_9280_10_OR_LATER(ah))
1264                 return;
1265         /*
1266          * Disable BB clock gating
1267          * Necessary to avoid issues on AR5416 2.0
1268          */
1269         REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
1270 }
1271
1272 static u32 ath9k_hw_def_ini_fixup(struct ath_hw *ah,
1273                               struct ar5416_eeprom_def *pEepData,
1274                               u32 reg, u32 value)
1275 {
1276         struct base_eep_header *pBase = &(pEepData->baseEepHeader);
1277         struct ath_common *common = ath9k_hw_common(ah);
1278
1279         switch (ah->hw_version.devid) {
1280         case AR9280_DEVID_PCI:
1281                 if (reg == 0x7894) {
1282                         ath_print(common, ATH_DBG_EEPROM,
1283                                 "ini VAL: %x  EEPROM: %x\n", value,
1284                                 (pBase->version & 0xff));
1285
1286                         if ((pBase->version & 0xff) > 0x0a) {
1287                                 ath_print(common, ATH_DBG_EEPROM,
1288                                           "PWDCLKIND: %d\n",
1289                                           pBase->pwdclkind);
1290                                 value &= ~AR_AN_TOP2_PWDCLKIND;
1291                                 value |= AR_AN_TOP2_PWDCLKIND &
1292                                         (pBase->pwdclkind << AR_AN_TOP2_PWDCLKIND_S);
1293                         } else {
1294                                 ath_print(common, ATH_DBG_EEPROM,
1295                                           "PWDCLKIND Earlier Rev\n");
1296                         }
1297
1298                         ath_print(common, ATH_DBG_EEPROM,
1299                                   "final ini VAL: %x\n", value);
1300                 }
1301                 break;
1302         }
1303
1304         return value;
1305 }
1306
1307 static u32 ath9k_hw_ini_fixup(struct ath_hw *ah,
1308                               struct ar5416_eeprom_def *pEepData,
1309                               u32 reg, u32 value)
1310 {
1311         if (ah->eep_map == EEP_MAP_4KBITS)
1312                 return value;
1313         else
1314                 return ath9k_hw_def_ini_fixup(ah, pEepData, reg, value);
1315 }
1316
1317 static void ath9k_olc_init(struct ath_hw *ah)
1318 {
1319         u32 i;
1320
1321         if (OLC_FOR_AR9287_10_LATER) {
1322                 REG_SET_BIT(ah, AR_PHY_TX_PWRCTRL9,
1323                                 AR_PHY_TX_PWRCTRL9_RES_DC_REMOVAL);
1324                 ath9k_hw_analog_shift_rmw(ah, AR9287_AN_TXPC0,
1325                                 AR9287_AN_TXPC0_TXPCMODE,
1326                                 AR9287_AN_TXPC0_TXPCMODE_S,
1327                                 AR9287_AN_TXPC0_TXPCMODE_TEMPSENSE);
1328                 udelay(100);
1329         } else {
1330                 for (i = 0; i < AR9280_TX_GAIN_TABLE_SIZE; i++)
1331                         ah->originalGain[i] =
1332                                 MS(REG_READ(ah, AR_PHY_TX_GAIN_TBL1 + i * 4),
1333                                                 AR_PHY_TX_GAIN);
1334                 ah->PDADCdelta = 0;
1335         }
1336 }
1337
1338 static u32 ath9k_regd_get_ctl(struct ath_regulatory *reg,
1339                               struct ath9k_channel *chan)
1340 {
1341         u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
1342
1343         if (IS_CHAN_B(chan))
1344                 ctl |= CTL_11B;
1345         else if (IS_CHAN_G(chan))
1346                 ctl |= CTL_11G;
1347         else
1348                 ctl |= CTL_11A;
1349
1350         return ctl;
1351 }
1352
1353 static int ath9k_hw_process_ini(struct ath_hw *ah,
1354                                 struct ath9k_channel *chan)
1355 {
1356         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1357         int i, regWrites = 0;
1358         struct ieee80211_channel *channel = chan->chan;
1359         u32 modesIndex, freqIndex;
1360
1361         switch (chan->chanmode) {
1362         case CHANNEL_A:
1363         case CHANNEL_A_HT20:
1364                 modesIndex = 1;
1365                 freqIndex = 1;
1366                 break;
1367         case CHANNEL_A_HT40PLUS:
1368         case CHANNEL_A_HT40MINUS:
1369                 modesIndex = 2;
1370                 freqIndex = 1;
1371                 break;
1372         case CHANNEL_G:
1373         case CHANNEL_G_HT20:
1374         case CHANNEL_B:
1375                 modesIndex = 4;
1376                 freqIndex = 2;
1377                 break;
1378         case CHANNEL_G_HT40PLUS:
1379         case CHANNEL_G_HT40MINUS:
1380                 modesIndex = 3;
1381                 freqIndex = 2;
1382                 break;
1383
1384         default:
1385                 return -EINVAL;
1386         }
1387
1388         REG_WRITE(ah, AR_PHY(0), 0x00000007);
1389         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
1390         ah->eep_ops->set_addac(ah, chan);
1391
1392         if (AR_SREV_5416_22_OR_LATER(ah)) {
1393                 REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
1394         } else {
1395                 struct ar5416IniArray temp;
1396                 u32 addacSize =
1397                         sizeof(u32) * ah->iniAddac.ia_rows *
1398                         ah->iniAddac.ia_columns;
1399
1400                 memcpy(ah->addac5416_21,
1401                        ah->iniAddac.ia_array, addacSize);
1402
1403                 (ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;
1404
1405                 temp.ia_array = ah->addac5416_21;
1406                 temp.ia_columns = ah->iniAddac.ia_columns;
1407                 temp.ia_rows = ah->iniAddac.ia_rows;
1408                 REG_WRITE_ARRAY(&temp, 1, regWrites);
1409         }
1410
1411         REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
1412
1413         for (i = 0; i < ah->iniModes.ia_rows; i++) {
1414                 u32 reg = INI_RA(&ah->iniModes, i, 0);
1415                 u32 val = INI_RA(&ah->iniModes, i, modesIndex);
1416
1417                 REG_WRITE(ah, reg, val);
1418
1419                 if (reg >= 0x7800 && reg < 0x78a0
1420                     && ah->config.analog_shiftreg) {
1421                         udelay(100);
1422                 }
1423
1424                 DO_DELAY(regWrites);
1425         }
1426
1427         if (AR_SREV_9280(ah) || AR_SREV_9287_10_OR_LATER(ah))
1428                 REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
1429
1430         if (AR_SREV_9280(ah) || AR_SREV_9285_12_OR_LATER(ah) ||
1431             AR_SREV_9287_10_OR_LATER(ah))
1432                 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
1433
1434         for (i = 0; i < ah->iniCommon.ia_rows; i++) {
1435                 u32 reg = INI_RA(&ah->iniCommon, i, 0);
1436                 u32 val = INI_RA(&ah->iniCommon, i, 1);
1437
1438                 REG_WRITE(ah, reg, val);
1439
1440                 if (reg >= 0x7800 && reg < 0x78a0
1441                     && ah->config.analog_shiftreg) {
1442                         udelay(100);
1443                 }
1444
1445                 DO_DELAY(regWrites);
1446         }
1447
1448         ath9k_hw_write_regs(ah, modesIndex, freqIndex, regWrites);
1449
1450         if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan)) {
1451                 REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex,
1452                                 regWrites);
1453         }
1454
1455         ath9k_hw_override_ini(ah, chan);
1456         ath9k_hw_set_regs(ah, chan);
1457         ath9k_hw_init_chain_masks(ah);
1458
1459         if (OLC_FOR_AR9280_20_LATER)
1460                 ath9k_olc_init(ah);
1461
1462         ah->eep_ops->set_txpower(ah, chan,
1463                                  ath9k_regd_get_ctl(regulatory, chan),
1464                                  channel->max_antenna_gain * 2,
1465                                  channel->max_power * 2,
1466                                  min((u32) MAX_RATE_POWER,
1467                                  (u32) regulatory->power_limit));
1468
1469         if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
1470                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
1471                           "ar5416SetRfRegs failed\n");
1472                 return -EIO;
1473         }
1474
1475         return 0;
1476 }
1477
1478 /****************************************/
1479 /* Reset and Channel Switching Routines */
1480 /****************************************/
1481
1482 static void ath9k_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
1483 {
1484         u32 rfMode = 0;
1485
1486         if (chan == NULL)
1487                 return;
1488
1489         rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
1490                 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
1491
1492         if (!AR_SREV_9280_10_OR_LATER(ah))
1493                 rfMode |= (IS_CHAN_5GHZ(chan)) ?
1494                         AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
1495
1496         if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan))
1497                 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
1498
1499         REG_WRITE(ah, AR_PHY_MODE, rfMode);
1500 }
1501
1502 static void ath9k_hw_mark_phy_inactive(struct ath_hw *ah)
1503 {
1504         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
1505 }
1506
1507 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
1508 {
1509         u32 regval;
1510
1511         /*
1512          * set AHB_MODE not to do cacheline prefetches
1513         */
1514         regval = REG_READ(ah, AR_AHB_MODE);
1515         REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
1516
1517         /*
1518          * let mac dma reads be in 128 byte chunks
1519          */
1520         regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
1521         REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
1522
1523         /*
1524          * Restore TX Trigger Level to its pre-reset value.
1525          * The initial value depends on whether aggregation is enabled, and is
1526          * adjusted whenever underruns are detected.
1527          */
1528         REG_RMW_FIELD(ah, AR_TXCFG, AR_FTRIG, ah->tx_trig_level);
1529
1530         /*
1531          * let mac dma writes be in 128 byte chunks
1532          */
1533         regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
1534         REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
1535
1536         /*
1537          * Setup receive FIFO threshold to hold off TX activities
1538          */
1539         REG_WRITE(ah, AR_RXFIFO_CFG, 0x200);
1540
1541         /*
1542          * reduce the number of usable entries in PCU TXBUF to avoid
1543          * wrap around issues.
1544          */
1545         if (AR_SREV_9285(ah)) {
1546                 /* For AR9285 the number of Fifos are reduced to half.
1547                  * So set the usable tx buf size also to half to
1548                  * avoid data/delimiter underruns
1549                  */
1550                 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1551                           AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE);
1552         } else if (!AR_SREV_9271(ah)) {
1553                 REG_WRITE(ah, AR_PCU_TXBUF_CTRL,
1554                           AR_PCU_TXBUF_CTRL_USABLE_SIZE);
1555         }
1556 }
1557
1558 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
1559 {
1560         u32 val;
1561
1562         val = REG_READ(ah, AR_STA_ID1);
1563         val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
1564         switch (opmode) {
1565         case NL80211_IFTYPE_AP:
1566                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
1567                           | AR_STA_ID1_KSRCH_MODE);
1568                 REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1569                 break;
1570         case NL80211_IFTYPE_ADHOC:
1571         case NL80211_IFTYPE_MESH_POINT:
1572                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
1573                           | AR_STA_ID1_KSRCH_MODE);
1574                 REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
1575                 break;
1576         case NL80211_IFTYPE_STATION:
1577         case NL80211_IFTYPE_MONITOR:
1578                 REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
1579                 break;
1580         }
1581 }
1582
1583 static inline void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah,
1584                                                  u32 coef_scaled,
1585                                                  u32 *coef_mantissa,
1586                                                  u32 *coef_exponent)
1587 {
1588         u32 coef_exp, coef_man;
1589
1590         for (coef_exp = 31; coef_exp > 0; coef_exp--)
1591                 if ((coef_scaled >> coef_exp) & 0x1)
1592                         break;
1593
1594         coef_exp = 14 - (coef_exp - COEF_SCALE_S);
1595
1596         coef_man = coef_scaled + (1 << (COEF_SCALE_S - coef_exp - 1));
1597
1598         *coef_mantissa = coef_man >> (COEF_SCALE_S - coef_exp);
1599         *coef_exponent = coef_exp - 16;
1600 }
1601
1602 static void ath9k_hw_set_delta_slope(struct ath_hw *ah,
1603                                      struct ath9k_channel *chan)
1604 {
1605         u32 coef_scaled, ds_coef_exp, ds_coef_man;
1606         u32 clockMhzScaled = 0x64000000;
1607         struct chan_centers centers;
1608
1609         if (IS_CHAN_HALF_RATE(chan))
1610                 clockMhzScaled = clockMhzScaled >> 1;
1611         else if (IS_CHAN_QUARTER_RATE(chan))
1612                 clockMhzScaled = clockMhzScaled >> 2;
1613
1614         ath9k_hw_get_channel_centers(ah, chan, &centers);
1615         coef_scaled = clockMhzScaled / centers.synth_center;
1616
1617         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1618                                       &ds_coef_exp);
1619
1620         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1621                       AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
1622         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
1623                       AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
1624
1625         coef_scaled = (9 * coef_scaled) / 10;
1626
1627         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
1628                                       &ds_coef_exp);
1629
1630         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1631                       AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
1632         REG_RMW_FIELD(ah, AR_PHY_HALFGI,
1633                       AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
1634 }
1635
1636 static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
1637 {
1638         u32 rst_flags;
1639         u32 tmpReg;
1640
1641         if (AR_SREV_9100(ah)) {
1642                 u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
1643                 val &= ~AR_RTC_DERIVED_CLK_PERIOD;
1644                 val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
1645                 REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
1646                 (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
1647         }
1648
1649         REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1650                   AR_RTC_FORCE_WAKE_ON_INT);
1651
1652         if (AR_SREV_9100(ah)) {
1653                 rst_flags = AR_RTC_RC_MAC_WARM | AR_RTC_RC_MAC_COLD |
1654                         AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
1655         } else {
1656                 tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
1657                 if (tmpReg &
1658                     (AR_INTR_SYNC_LOCAL_TIMEOUT |
1659                      AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
1660                         REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
1661                         REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
1662                 } else {
1663                         REG_WRITE(ah, AR_RC, AR_RC_AHB);
1664                 }
1665
1666                 rst_flags = AR_RTC_RC_MAC_WARM;
1667                 if (type == ATH9K_RESET_COLD)
1668                         rst_flags |= AR_RTC_RC_MAC_COLD;
1669         }
1670
1671         REG_WRITE(ah, AR_RTC_RC, rst_flags);
1672         udelay(50);
1673
1674         REG_WRITE(ah, AR_RTC_RC, 0);
1675         if (!ath9k_hw_wait(ah, AR_RTC_RC, AR_RTC_RC_M, 0, AH_WAIT_TIMEOUT)) {
1676                 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1677                           "RTC stuck in MAC reset\n");
1678                 return false;
1679         }
1680
1681         if (!AR_SREV_9100(ah))
1682                 REG_WRITE(ah, AR_RC, 0);
1683
1684         ath9k_hw_init_pll(ah, NULL);
1685
1686         if (AR_SREV_9100(ah))
1687                 udelay(50);
1688
1689         return true;
1690 }
1691
1692 static bool ath9k_hw_set_reset_power_on(struct ath_hw *ah)
1693 {
1694         REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_EN |
1695                   AR_RTC_FORCE_WAKE_ON_INT);
1696
1697         if (!AR_SREV_9100(ah))
1698                 REG_WRITE(ah, AR_RC, AR_RC_AHB);
1699
1700         REG_WRITE(ah, AR_RTC_RESET, 0);
1701         udelay(2);
1702
1703         if (!AR_SREV_9100(ah))
1704                 REG_WRITE(ah, AR_RC, 0);
1705
1706         REG_WRITE(ah, AR_RTC_RESET, 1);
1707
1708         if (!ath9k_hw_wait(ah,
1709                            AR_RTC_STATUS,
1710                            AR_RTC_STATUS_M,
1711                            AR_RTC_STATUS_ON,
1712                            AH_WAIT_TIMEOUT)) {
1713                 ath_print(ath9k_hw_common(ah), ATH_DBG_RESET,
1714                           "RTC not waking up\n");
1715                 return false;
1716         }
1717
1718         ath9k_hw_read_revisions(ah);
1719
1720         return ath9k_hw_set_reset(ah, ATH9K_RESET_WARM);
1721 }
1722
1723 static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type)
1724 {
1725         REG_WRITE(ah, AR_RTC_FORCE_WAKE,
1726                   AR_RTC_FORCE_WAKE_EN | AR_RTC_FORCE_WAKE_ON_INT);
1727
1728         switch (type) {
1729         case ATH9K_RESET_POWER_ON:
1730                 return ath9k_hw_set_reset_power_on(ah);
1731         case ATH9K_RESET_WARM:
1732         case ATH9K_RESET_COLD:
1733                 return ath9k_hw_set_reset(ah, type);
1734         default:
1735                 return false;
1736         }
1737 }
1738
1739 static void ath9k_hw_set_regs(struct ath_hw *ah, struct ath9k_channel *chan)
1740 {
1741         u32 phymode;
1742         u32 enableDacFifo = 0;
1743
1744         if (AR_SREV_9285_10_OR_LATER(ah))
1745                 enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
1746                                          AR_PHY_FC_ENABLE_DAC_FIFO);
1747
1748         phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
1749                 | AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;
1750
1751         if (IS_CHAN_HT40(chan)) {
1752                 phymode |= AR_PHY_FC_DYN2040_EN;
1753
1754                 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
1755                     (chan->chanmode == CHANNEL_G_HT40PLUS))
1756                         phymode |= AR_PHY_FC_DYN2040_PRI_CH;
1757
1758         }
1759         REG_WRITE(ah, AR_PHY_TURBO, phymode);
1760
1761         ath9k_hw_set11nmac2040(ah);
1762
1763         REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
1764         REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
1765 }
1766
1767 static bool ath9k_hw_chip_reset(struct ath_hw *ah,
1768                                 struct ath9k_channel *chan)
1769 {
1770         if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL)) {
1771                 if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_POWER_ON))
1772                         return false;
1773         } else if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))
1774                 return false;
1775
1776         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
1777                 return false;
1778
1779         ah->chip_fullsleep = false;
1780         ath9k_hw_init_pll(ah, chan);
1781         ath9k_hw_set_rfmode(ah, chan);
1782
1783         return true;
1784 }
1785
1786 static bool ath9k_hw_channel_change(struct ath_hw *ah,
1787                                     struct ath9k_channel *chan)
1788 {
1789         struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
1790         struct ath_common *common = ath9k_hw_common(ah);
1791         struct ieee80211_channel *channel = chan->chan;
1792         u32 synthDelay, qnum;
1793
1794         for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
1795                 if (ath9k_hw_numtxpending(ah, qnum)) {
1796                         ath_print(common, ATH_DBG_QUEUE,
1797                                   "Transmit frames pending on "
1798                                   "queue %d\n", qnum);
1799                         return false;
1800                 }
1801         }
1802
1803         REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
1804         if (!ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
1805                            AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT)) {
1806                 ath_print(common, ATH_DBG_FATAL,
1807                           "Could not kill baseband RX\n");
1808                 return false;
1809         }
1810
1811         ath9k_hw_set_regs(ah, chan);
1812
1813         if (AR_SREV_9280_10_OR_LATER(ah)) {
1814                 ath9k_hw_ar9280_set_channel(ah, chan);
1815         } else {
1816                 if (!(ath9k_hw_set_channel(ah, chan))) {
1817                         ath_print(common, ATH_DBG_FATAL,
1818                                   "Failed to set channel\n");
1819                         return false;
1820                 }
1821         }
1822
1823         ah->eep_ops->set_txpower(ah, chan,
1824                              ath9k_regd_get_ctl(regulatory, chan),
1825                              channel->max_antenna_gain * 2,
1826                              channel->max_power * 2,
1827                              min((u32) MAX_RATE_POWER,
1828                              (u32) regulatory->power_limit));
1829
1830         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
1831         if (IS_CHAN_B(chan))
1832                 synthDelay = (4 * synthDelay) / 22;
1833         else
1834                 synthDelay /= 10;
1835
1836         udelay(synthDelay + BASE_ACTIVATE_DELAY);
1837
1838         REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
1839
1840         if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
1841                 ath9k_hw_set_delta_slope(ah, chan);
1842
1843         if (AR_SREV_9280_10_OR_LATER(ah))
1844                 ath9k_hw_9280_spur_mitigate(ah, chan);
1845         else
1846                 ath9k_hw_spur_mitigate(ah, chan);
1847
1848         if (!chan->oneTimeCalsDone)
1849                 chan->oneTimeCalsDone = true;
1850
1851         return true;
1852 }
1853
1854 static void ath9k_hw_9280_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan)
1855 {
1856         int bb_spur = AR_NO_SPUR;
1857         int freq;
1858         int bin, cur_bin;
1859         int bb_spur_off, spur_subchannel_sd;
1860         int spur_freq_sd;
1861         int spur_delta_phase;
1862         int denominator;
1863         int upper, lower, cur_vit_mask;
1864         int tmp, newVal;
1865         int i;
1866         int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
1867                           AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
1868         };
1869         int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
1870                          AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
1871         };
1872         int inc[4] = { 0, 100, 0, 0 };
1873         struct chan_centers centers;
1874
1875         int8_t mask_m[123];
1876         int8_t mask_p[123];
1877         int8_t mask_amt;
1878         int tmp_mask;
1879         int cur_bb_spur;
1880         bool is2GHz = IS_CHAN_2GHZ(chan);
1881
1882         memset(&mask_m, 0, sizeof(int8_t) * 123);
1883         memset(&mask_p, 0, sizeof(int8_t) * 123);
1884
1885         ath9k_hw_get_channel_centers(ah, chan, &centers);
1886         freq = centers.synth_center;
1887
1888         ah->config.spurmode = SPUR_ENABLE_EEPROM;
1889         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
1890                 cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
1891
1892                 if (is2GHz)
1893                         cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_2GHZ;
1894                 else
1895                         cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_5GHZ;
1896
1897                 if (AR_NO_SPUR == cur_bb_spur)
1898                         break;
1899                 cur_bb_spur = cur_bb_spur - freq;
1900
1901                 if (IS_CHAN_HT40(chan)) {
1902                         if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT40) &&
1903                             (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT40)) {
1904                                 bb_spur = cur_bb_spur;
1905                                 break;
1906                         }
1907                 } else if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT20) &&
1908                            (cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT20)) {
1909                         bb_spur = cur_bb_spur;
1910                         break;
1911                 }
1912         }
1913
1914         if (AR_NO_SPUR == bb_spur) {
1915                 REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK,
1916                             AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
1917                 return;
1918         } else {
1919                 REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK,
1920                             AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
1921         }
1922
1923         bin = bb_spur * 320;
1924
1925         tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
1926
1927         newVal = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
1928                         AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
1929                         AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
1930                         AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
1931         REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), newVal);
1932
1933         newVal = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
1934                   AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
1935                   AR_PHY_SPUR_REG_MASK_RATE_SELECT |
1936                   AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
1937                   SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
1938         REG_WRITE(ah, AR_PHY_SPUR_REG, newVal);
1939
1940         if (IS_CHAN_HT40(chan)) {
1941                 if (bb_spur < 0) {
1942                         spur_subchannel_sd = 1;
1943                         bb_spur_off = bb_spur + 10;
1944                 } else {
1945                         spur_subchannel_sd = 0;
1946                         bb_spur_off = bb_spur - 10;
1947                 }
1948         } else {
1949                 spur_subchannel_sd = 0;
1950                 bb_spur_off = bb_spur;
1951         }
1952
1953         if (IS_CHAN_HT40(chan))
1954                 spur_delta_phase =
1955                         ((bb_spur * 262144) /
1956                          10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
1957         else
1958                 spur_delta_phase =
1959                         ((bb_spur * 524288) /
1960                          10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
1961
1962         denominator = IS_CHAN_2GHZ(chan) ? 44 : 40;
1963         spur_freq_sd = ((bb_spur_off * 2048) / denominator) & 0x3ff;
1964
1965         newVal = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
1966                   SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
1967                   SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
1968         REG_WRITE(ah, AR_PHY_TIMING11, newVal);
1969
1970         newVal = spur_subchannel_sd << AR_PHY_SFCORR_SPUR_SUBCHNL_SD_S;
1971         REG_WRITE(ah, AR_PHY_SFCORR_EXT, newVal);
1972
1973         cur_bin = -6000;
1974         upper = bin + 100;
1975         lower = bin - 100;
1976
1977         for (i = 0; i < 4; i++) {
1978                 int pilot_mask = 0;
1979                 int chan_mask = 0;
1980                 int bp = 0;
1981                 for (bp = 0; bp < 30; bp++) {
1982                         if ((cur_bin > lower) && (cur_bin < upper)) {
1983                                 pilot_mask = pilot_mask | 0x1 << bp;
1984                                 chan_mask = chan_mask | 0x1 << bp;
1985                         }
1986                         cur_bin += 100;
1987                 }
1988                 cur_bin += inc[i];
1989                 REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
1990                 REG_WRITE(ah, chan_mask_reg[i], chan_mask);
1991         }
1992
1993         cur_vit_mask = 6100;
1994         upper = bin + 120;
1995         lower = bin - 120;
1996
1997         for (i = 0; i < 123; i++) {
1998                 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
1999
2000                         /* workaround for gcc bug #37014 */
2001                         volatile int tmp_v = abs(cur_vit_mask - bin);
2002
2003                         if (tmp_v < 75)
2004                                 mask_amt = 1;
2005                         else
2006                                 mask_amt = 0;
2007                         if (cur_vit_mask < 0)
2008                                 mask_m[abs(cur_vit_mask / 100)] = mask_amt;
2009                         else
2010                                 mask_p[cur_vit_mask / 100] = mask_amt;
2011                 }
2012                 cur_vit_mask -= 100;
2013         }
2014
2015         tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
2016                 | (mask_m[48] << 26) | (mask_m[49] << 24)
2017                 | (mask_m[50] << 22) | (mask_m[51] << 20)
2018                 | (mask_m[52] << 18) | (mask_m[53] << 16)
2019                 | (mask_m[54] << 14) | (mask_m[55] << 12)
2020                 | (mask_m[56] << 10) | (mask_m[57] << 8)
2021                 | (mask_m[58] << 6) | (mask_m[59] << 4)
2022                 | (mask_m[60] << 2) | (mask_m[61] << 0);
2023         REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
2024         REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
2025
2026         tmp_mask = (mask_m[31] << 28)
2027                 | (mask_m[32] << 26) | (mask_m[33] << 24)
2028                 | (mask_m[34] << 22) | (mask_m[35] << 20)
2029                 | (mask_m[36] << 18) | (mask_m[37] << 16)
2030                 | (mask_m[48] << 14) | (mask_m[39] << 12)
2031                 | (mask_m[40] << 10) | (mask_m[41] << 8)
2032                 | (mask_m[42] << 6) | (mask_m[43] << 4)
2033                 | (mask_m[44] << 2) | (mask_m[45] << 0);
2034         REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
2035         REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
2036
2037         tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
2038                 | (mask_m[18] << 26) | (mask_m[18] << 24)
2039                 | (mask_m[20] << 22) | (mask_m[20] << 20)
2040                 | (mask_m[22] << 18) | (mask_m[22] << 16)
2041                 | (mask_m[24] << 14) | (mask_m[24] << 12)
2042                 | (mask_m[25] << 10) | (mask_m[26] << 8)
2043                 | (mask_m[27] << 6) | (mask_m[28] << 4)
2044                 | (mask_m[29] << 2) | (mask_m[30] << 0);
2045         REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
2046         REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
2047
2048         tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
2049                 | (mask_m[2] << 26) | (mask_m[3] << 24)
2050                 | (mask_m[4] << 22) | (mask_m[5] << 20)
2051                 | (mask_m[6] << 18) | (mask_m[7] << 16)
2052                 | (mask_m[8] << 14) | (mask_m[9] << 12)
2053                 | (mask_m[10] << 10) | (mask_m[11] << 8)
2054                 | (mask_m[12] << 6) | (mask_m[13] << 4)
2055                 | (mask_m[14] << 2) | (mask_m[15] << 0);
2056         REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
2057         REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
2058
2059         tmp_mask = (mask_p[15] << 28)
2060                 | (mask_p[14] << 26) | (mask_p[13] << 24)
2061                 | (mask_p[12] << 22) | (mask_p[11] << 20)
2062                 | (mask_p[10] << 18) | (mask_p[9] << 16)
2063                 | (mask_p[8] << 14) | (mask_p[7] << 12)
2064                 | (mask_p[6] << 10) | (mask_p[5] << 8)
2065                 | (mask_p[4] << 6) | (mask_p[3] << 4)
2066                 | (mask_p[2] << 2) | (mask_p[1] << 0);
2067         REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
2068         REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
2069
2070         tmp_mask = (mask_p[30] << 28)
2071                 | (mask_p[29] << 26) | (mask_p[28] << 24)
2072                 | (mask_p[27] << 22) | (mask_p[26] << 20)
2073                 | (mask_p[25] << 18) | (mask_p[24] << 16)
2074                 | (mask_p[23] << 14) | (mask_p[22] << 12)
2075                 | (mask_p[21] << 10) | (mask_p[20] << 8)
2076                 | (mask_p[19] << 6) | (mask_p[18] << 4)
2077                 | (mask_p[17] << 2) | (mask_p[16] << 0);
2078         REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
2079         REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
2080
2081         tmp_mask = (mask_p[45] << 28)
2082                 | (mask_p[44] << 26) | (mask_p[43] << 24)
2083                 | (mask_p[42] << 22) | (mask_p[41] << 20)
2084                 | (mask_p[40] << 18) | (mask_p[39] << 16)
2085                 | (mask_p[38] << 14) | (mask_p[37] << 12)
2086                 | (mask_p[36] << 10) | (mask_p[35] << 8)
2087                 | (mask_p[34] << 6) | (mask_p[33] << 4)
2088                 | (mask_p[32] << 2) | (mask_p[31] << 0);
2089         REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
2090         REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
2091
2092         tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
2093                 | (mask_p[59] << 26) | (mask_p[58] << 24)
2094                 | (mask_p[57] << 22) | (mask_p[56] << 20)
2095                 | (mask_p[55] << 18) | (mask_p[54] << 16)
2096                 | (mask_p[53] << 14) | (mask_p[52] << 12)
2097                 | (mask_p[51] << 10) | (mask_p[50] << 8)
2098                 | (mask_p[49] << 6) | (mask_p[48] << 4)
2099                 | (mask_p[47] << 2) | (mask_p[46] << 0);
2100         REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
2101         REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
2102 }
2103
2104 static void ath9k_hw_spur_mitigate(struct ath_hw *ah, struct ath9k_channel *chan)
2105 {
2106         int bb_spur = AR_NO_SPUR;
2107         int bin, cur_bin;
2108         int spur_freq_sd;
2109         int spur_delta_phase;
2110         int denominator;
2111         int upper, lower, cur_vit_mask;
2112         int tmp, new;
2113         int i;
2114         int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
2115                           AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
2116         };
2117         int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
2118                          AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
2119         };
2120         int inc[4] = { 0, 100, 0, 0 };
2121
2122         int8_t mask_m[123];
2123         int8_t mask_p[123];
2124         int8_t mask_amt;
2125         int tmp_mask;
2126         int cur_bb_spur;
2127         bool is2GHz = IS_CHAN_2GHZ(chan);
2128
2129         memset(&mask_m, 0, sizeof(int8_t) * 123);
2130         memset(&mask_p, 0, sizeof(int8_t) * 123);
2131
2132         for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
2133                 cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
2134                 if (AR_NO_SPUR == cur_bb_spur)
2135                         break;
2136                 cur_bb_spur = cur_bb_spur - (chan->channel * 10);
2137                 if ((cur_bb_spur > -95) && (cur_bb_spur < 95)) {
2138                         bb_spur = cur_bb_spur;
2139                         break;
2140                 }
2141         }
2142
2143         if (AR_NO_SPUR == bb_spur)
2144                 return;
2145
2146         bin = bb_spur * 32;
2147
2148         tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
2149         new = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
2150                      AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
2151                      AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
2152                      AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
2153
2154         REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), new);
2155
2156         new = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
2157                AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
2158                AR_PHY_SPUR_REG_MASK_RATE_SELECT |
2159                AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
2160                SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
2161         REG_WRITE(ah, AR_PHY_SPUR_REG, new);
2162
2163         spur_delta_phase = ((bb_spur * 524288) / 100) &
2164                 AR_PHY_TIMING11_SPUR_DELTA_PHASE;
2165
2166         denominator = IS_CHAN_2GHZ(chan) ? 440 : 400;
2167         spur_freq_sd = ((bb_spur * 2048) / denominator) & 0x3ff;
2168
2169         new = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
2170                SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
2171                SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
2172         REG_WRITE(ah, AR_PHY_TIMING11, new);
2173
2174         cur_bin = -6000;
2175         upper = bin + 100;
2176         lower = bin - 100;
2177
2178         for (i = 0; i < 4; i++) {
2179                 int pilot_mask = 0;
2180                 int chan_mask = 0;
2181                 int bp = 0;
2182                 for (bp = 0; bp < 30; bp++) {
2183                         if ((cur_bin > lower) && (cur_bin < upper)) {
2184                                 pilot_mask = pilot_mask | 0x1 << bp;
2185                                 chan_mask = chan_mask | 0x1 << bp;
2186                         }
2187                         cur_bin += 100;
2188                 }
2189                 cur_bin += inc[i];
2190                 REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
2191                 REG_WRITE(ah, chan_mask_reg[i], chan_mask);
2192         }
2193
2194         cur_vit_mask = 6100;
2195         upper = bin + 120;
2196         lower = bin - 120;
2197
2198         for (i = 0; i < 123; i++) {
2199                 if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
2200
2201                         /* workaround for gcc bug #37014 */
2202                         volatile int tmp_v = abs(cur_vit_mask - bin);
2203
2204                         if (tmp_v < 75)
2205                                 mask_amt = 1;
2206                         else
2207                                 mask_amt = 0;
2208                         if (cur_vit_mask < 0)
2209                                 mask_m[abs(cur_vit_mask / 100)] = mask_amt;
2210                         else
2211                                 mask_p[cur_vit_mask / 100] = mask_amt;
2212                 }
2213                 cur_vit_mask -= 100;
2214         }
2215
2216         tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
2217                 | (mask_m[48] << 26) | (mask_m[49] << 24)
2218                 | (mask_m[50] << 22) | (mask_m[51] << 20)
2219                 | (mask_m[52] << 18) | (mask_m[53] << 16)
2220                 | (mask_m[54] << 14) | (mask_m[55] << 12)
2221                 | (mask_m[56] << 10) | (mask_m[57] << 8)
2222                 | (mask_m[58] << 6) | (mask_m[59] << 4)
2223                 | (mask_m[60] << 2) | (mask_m[61] << 0);
2224         REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
2225         REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
2226
2227         tmp_mask = (mask_m[31] << 28)
2228                 | (mask_m[32] << 26) | (mask_m[33] << 24)
2229                 | (mask_m[34] << 22) | (mask_m[35] << 20)
2230                 | (mask_m[36] << 18) | (mask_m[37] << 16)
2231                 | (mask_m[48] << 14) | (mask_m[39] << 12)
2232                 | (mask_m[40] << 10) | (mask_m[41] << 8)
2233                 | (mask_m[42] << 6) | (mask_m[43] << 4)
2234                 | (mask_m[44] << 2) | (mask_m[45] << 0);
2235         REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
2236         REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
2237
2238         tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
2239                 | (mask_m[18] << 26) | (mask_m[18] << 24)
2240                 | (mask_m[20] << 22) | (mask_m[20] << 20)
2241                 | (mask_m[22] << 18) | (mask_m[22] << 16)
2242                 | (mask_m[24] << 14) | (mask_m[24] << 12)
2243                 | (mask_m[25] << 10) | (mask_m[26] << 8)
2244                 | (mask_m[27] << 6) | (mask_m[28] << 4)
2245                 | (mask_m[29] << 2) | (mask_m[30] << 0);
2246         REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
2247         REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
2248
2249         tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
2250                 | (mask_m[2] << 26) | (mask_m[3] << 24)
2251                 | (mask_m[4] << 22) | (mask_m[5] << 20)
2252                 | (mask_m[6] << 18) | (mask_m[7] << 16)
2253                 | (mask_m[8] << 14) | (mask_m[9] << 12)
2254                 | (mask_m[10] << 10) | (mask_m[11] << 8)
2255                 | (mask_m[12] << 6) | (mask_m[13] << 4)
2256                 | (mask_m[14] << 2) | (mask_m[15] << 0);
2257         REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
2258         REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
2259
2260         tmp_mask = (mask_p[15] << 28)
2261                 | (mask_p[14] << 26) | (mask_p[13] << 24)
2262                 | (mask_p[12] << 22) | (mask_p[11] << 20)
2263                 | (mask_p[10] << 18) | (mask_p[9] << 16)
2264                 | (mask_p[8] << 14) | (mask_p[7] << 12)
2265                 | (mask_p[6] << 10) | (mask_p[5] << 8)
2266                 | (mask_p[4] << 6) | (mask_p[3] << 4)
2267                 | (mask_p[2] << 2) | (mask_p[1] << 0);
2268         REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
2269         REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
2270
2271         tmp_mask = (mask_p[30] << 28)
2272                 | (mask_p[29] << 26) | (mask_p[28] << 24)
2273                 | (mask_p[27] << 22) | (mask_p[26] << 20)
2274                 | (mask_p[25] << 18) | (mask_p[24] << 16)
2275                 | (mask_p[23] << 14) | (mask_p[22] << 12)
2276                 | (mask_p[21] << 10) | (mask_p[20] << 8)
2277                 | (mask_p[19] << 6) | (mask_p[18] << 4)
2278                 | (mask_p[17] << 2) | (mask_p[16] << 0);
2279         REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
2280         REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
2281
2282         tmp_mask = (mask_p[45] << 28)
2283                 | (mask_p[44] << 26) | (mask_p[43] << 24)
2284                 | (mask_p[42] << 22) | (mask_p[41] << 20)
2285                 | (mask_p[40] << 18) | (mask_p[39] << 16)
2286                 | (mask_p[38] << 14) | (mask_p[37] << 12)
2287                 | (mask_p[36] << 10) | (mask_p[35] << 8)
2288                 | (mask_p[34] << 6) | (mask_p[33] << 4)
2289                 | (mask_p[32] << 2) | (mask_p[31] << 0);
2290         REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
2291         REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
2292
2293         tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
2294                 | (mask_p[59] << 26) | (mask_p[58] << 24)
2295                 | (mask_p[57] << 22) | (mask_p[56] << 20)
2296                 | (mask_p[55] << 18) | (mask_p[54] << 16)
2297                 | (mask_p[53] << 14) | (mask_p[52] << 12)
2298                 | (mask_p[51] << 10) | (mask_p[50] << 8)
2299                 | (mask_p[49] << 6) | (mask_p[48] << 4)
2300                 | (mask_p[47] << 2) | (mask_p[46] << 0);
2301         REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
2302         REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
2303 }
2304
2305 static void ath9k_enable_rfkill(struct ath_hw *ah)
2306 {
2307         REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
2308                     AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
2309
2310         REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
2311                     AR_GPIO_INPUT_MUX2_RFSILENT);
2312
2313         ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
2314         REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
2315 }
2316
2317 int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
2318                     bool bChannelChange)
2319 {
2320         struct ath_common *common = ath9k_hw_common(ah);
2321         u32 saveLedState;
2322         struct ath9k_channel *curchan = ah->curchan;
2323         u32 saveDefAntenna;
2324         u32 macStaId1;
2325         u64 tsf = 0;
2326         int i, rx_chainmask, r;
2327
2328         ah->txchainmask = common->tx_chainmask;
2329         ah->rxchainmask = common->rx_chainmask;
2330
2331         if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
2332                 return -EIO;
2333
2334         if (curchan && !ah->chip_fullsleep)
2335                 ath9k_hw_getnf(ah, curchan);
2336
2337         if (bChannelChange &&
2338             (ah->chip_fullsleep != true) &&
2339             (ah->curchan != NULL) &&
2340             (chan->channel != ah->curchan->channel) &&
2341             ((chan->channelFlags & CHANNEL_ALL) ==
2342              (ah->curchan->channelFlags & CHANNEL_ALL)) &&
2343              !(AR_SREV_9280(ah) || IS_CHAN_A_5MHZ_SPACED(chan) ||
2344              IS_CHAN_A_5MHZ_SPACED(ah->curchan))) {
2345
2346                 if (ath9k_hw_channel_change(ah, chan)) {
2347                         ath9k_hw_loadnf(ah, ah->curchan);
2348                         ath9k_hw_start_nfcal(ah);
2349                         return 0;
2350                 }
2351         }
2352
2353         saveDefAntenna = REG_READ(ah, AR_DEF_ANTENNA);
2354         if (saveDefAntenna == 0)
2355                 saveDefAntenna = 1;
2356
2357         macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
2358
2359         /* For chips on which RTC reset is done, save TSF before it gets cleared */
2360         if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
2361                 tsf = ath9k_hw_gettsf64(ah);
2362
2363         saveLedState = REG_READ(ah, AR_CFG_LED) &
2364                 (AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
2365                  AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
2366
2367         ath9k_hw_mark_phy_inactive(ah);
2368
2369         if (AR_SREV_9271(ah) && ah->htc_reset_init) {
2370                 REG_WRITE(ah,
2371                           AR9271_RESET_POWER_DOWN_CONTROL,
2372                           AR9271_RADIO_RF_RST);
2373                 udelay(50);
2374         }
2375
2376         if (!ath9k_hw_chip_reset(ah, chan)) {
2377                 ath_print(common, ATH_DBG_FATAL, "Chip reset failed\n");
2378                 return -EINVAL;
2379         }
2380
2381         if (AR_SREV_9271(ah) && ah->htc_reset_init) {
2382                 ah->htc_reset_init = false;
2383                 REG_WRITE(ah,
2384                           AR9271_RESET_POWER_DOWN_CONTROL,
2385                           AR9271_GATE_MAC_CTL);
2386                 udelay(50);
2387         }
2388
2389         /* Restore TSF */
2390         if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))
2391                 ath9k_hw_settsf64(ah, tsf);
2392
2393         if (AR_SREV_9280_10_OR_LATER(ah))
2394                 REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
2395
2396         if (AR_SREV_9287_12_OR_LATER(ah)) {
2397                 /* Enable ASYNC FIFO */
2398                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2399                                 AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
2400                 REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
2401                 REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2402                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
2403                 REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
2404                                 AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
2405         }
2406         r = ath9k_hw_process_ini(ah, chan);
2407         if (r)
2408                 return r;
2409
2410         /* Setup MFP options for CCMP */
2411         if (AR_SREV_9280_20_OR_LATER(ah)) {
2412                 /* Mask Retry(b11), PwrMgt(b12), MoreData(b13) to 0 in mgmt
2413                  * frames when constructing CCMP AAD. */
2414                 REG_RMW_FIELD(ah, AR_AES_MUTE_MASK1, AR_AES_MUTE_MASK1_FC_MGMT,
2415                               0xc7ff);
2416                 ah->sw_mgmt_crypto = false;
2417         } else if (AR_SREV_9160_10_OR_LATER(ah)) {
2418                 /* Disable hardware crypto for management frames */
2419                 REG_CLR_BIT(ah, AR_PCU_MISC_MODE2,
2420                             AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE);
2421                 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2422                             AR_PCU_MISC_MODE2_NO_CRYPTO_FOR_NON_DATA_PKT);
2423                 ah->sw_mgmt_crypto = true;
2424         } else
2425                 ah->sw_mgmt_crypto = true;
2426
2427         if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
2428                 ath9k_hw_set_delta_slope(ah, chan);
2429
2430         if (AR_SREV_9280_10_OR_LATER(ah))
2431                 ath9k_hw_9280_spur_mitigate(ah, chan);
2432         else
2433                 ath9k_hw_spur_mitigate(ah, chan);
2434
2435         ah->eep_ops->set_board_values(ah, chan);
2436
2437         ath9k_hw_decrease_chain_power(ah, chan);
2438
2439         REG_WRITE(ah, AR_STA_ID0, get_unaligned_le32(common->macaddr));
2440         REG_WRITE(ah, AR_STA_ID1, get_unaligned_le16(common->macaddr + 4)
2441                   | macStaId1
2442                   | AR_STA_ID1_RTS_USE_DEF
2443                   | (ah->config.
2444                      ack_6mb ? AR_STA_ID1_ACKCTS_6MB : 0)
2445                   | ah->sta_id1_defaults);
2446         ath9k_hw_set_operating_mode(ah, ah->opmode);
2447
2448         ath_hw_setbssidmask(common);
2449
2450         REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
2451
2452         ath9k_hw_write_associd(ah);
2453
2454         REG_WRITE(ah, AR_ISR, ~0);
2455
2456         REG_WRITE(ah, AR_RSSI_THR, INIT_RSSI_THR);
2457
2458         if (AR_SREV_9280_10_OR_LATER(ah))
2459                 ath9k_hw_ar9280_set_channel(ah, chan);
2460         else
2461                 if (!(ath9k_hw_set_channel(ah, chan)))
2462                         return -EIO;
2463
2464         for (i = 0; i < AR_NUM_DCU; i++)
2465                 REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
2466
2467         ah->intr_txqs = 0;
2468         for (i = 0; i < ah->caps.total_queues; i++)
2469                 ath9k_hw_resettxqueue(ah, i);
2470
2471         ath9k_hw_init_interrupt_masks(ah, ah->opmode);
2472         ath9k_hw_init_qos(ah);
2473
2474         if (ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
2475                 ath9k_enable_rfkill(ah);
2476
2477         ath9k_hw_init_user_settings(ah);
2478
2479         if (AR_SREV_9287_12_OR_LATER(ah)) {
2480                 REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
2481                           AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
2482                 REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
2483                           AR_D_GBL_IFS_SLOT_ASYNC_FIFO_DUR);
2484                 REG_WRITE(ah, AR_D_GBL_IFS_EIFS,
2485                           AR_D_GBL_IFS_EIFS_ASYNC_FIFO_DUR);
2486
2487                 REG_WRITE(ah, AR_TIME_OUT, AR_TIME_OUT_ACK_CTS_ASYNC_FIFO_DUR);
2488                 REG_WRITE(ah, AR_USEC, AR_USEC_ASYNC_FIFO_DUR);
2489
2490                 REG_SET_BIT(ah, AR_MAC_PCU_LOGIC_ANALYZER,
2491                             AR_MAC_PCU_LOGIC_ANALYZER_DISBUG20768);
2492                 REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
2493                               AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
2494         }
2495         if (AR_SREV_9287_12_OR_LATER(ah)) {
2496                 REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
2497                                 AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
2498         }
2499
2500         REG_WRITE(ah, AR_STA_ID1,
2501                   REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
2502
2503         ath9k_hw_set_dma(ah);
2504
2505         REG_WRITE(ah, AR_OBS, 8);
2506
2507         if (ah->config.intr_mitigation) {
2508                 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_LAST, 500);
2509                 REG_RMW_FIELD(ah, AR_RIMT, AR_RIMT_FIRST, 2000);
2510         }
2511
2512         ath9k_hw_init_bb(ah, chan);
2513
2514         if (!ath9k_hw_init_cal(ah, chan))
2515                 return -EIO;
2516
2517         rx_chainmask = ah->rxchainmask;
2518         if ((rx_chainmask == 0x5) || (rx_chainmask == 0x3)) {
2519                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
2520                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
2521         }
2522
2523         REG_WRITE(ah, AR_CFG_LED, saveLedState | AR_CFG_SCLK_32KHZ);
2524
2525         /*
2526          * For big endian systems turn on swapping for descriptors
2527          */
2528         if (AR_SREV_9100(ah)) {
2529                 u32 mask;
2530                 mask = REG_READ(ah, AR_CFG);
2531                 if (mask & (AR_CFG_SWRB | AR_CFG_SWTB | AR_CFG_SWRG)) {
2532                         ath_print(common, ATH_DBG_RESET,
2533                                 "CFG Byte Swap Set 0x%x\n", mask);
2534                 } else {
2535                         mask =
2536                                 INIT_CONFIG_STATUS | AR_CFG_SWRB | AR_CFG_SWTB;
2537                         REG_WRITE(ah, AR_CFG, mask);
2538                         ath_print(common, ATH_DBG_RESET,
2539                                 "Setting CFG 0x%x\n", REG_READ(ah, AR_CFG));
2540                 }
2541         } else {
2542                 /* Configure AR9271 target WLAN */
2543                 if (AR_SREV_9271(ah))
2544                         REG_WRITE(ah, AR_CFG, AR_CFG_SWRB | AR_CFG_SWTB);
2545 #ifdef __BIG_ENDIAN
2546                 else
2547                         REG_WRITE(ah, AR_CFG, AR_CFG_SWTD | AR_CFG_SWRD);
2548 #endif
2549         }
2550
2551         if (ah->btcoex_hw.enabled)
2552                 ath9k_hw_btcoex_enable(ah);
2553
2554         return 0;
2555 }
2556
2557 /************************/
2558 /* Key Cache Management */
2559 /************************/
2560
2561 bool ath9k_hw_keyreset(struct ath_hw *ah, u16 entry)
2562 {
2563         u32 keyType;
2564
2565         if (entry >= ah->caps.keycache_size) {
2566                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2567                           "keychache entry %u out of range\n", entry);
2568                 return false;
2569         }
2570
2571         keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
2572
2573         REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
2574         REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
2575         REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
2576         REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
2577         REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
2578         REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
2579         REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
2580         REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
2581
2582         if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2583                 u16 micentry = entry + 64;
2584
2585                 REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
2586                 REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2587                 REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
2588                 REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2589
2590         }
2591
2592         return true;
2593 }
2594
2595 bool ath9k_hw_keysetmac(struct ath_hw *ah, u16 entry, const u8 *mac)
2596 {
2597         u32 macHi, macLo;
2598
2599         if (entry >= ah->caps.keycache_size) {
2600                 ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2601                           "keychache entry %u out of range\n", entry);
2602                 return false;
2603         }
2604
2605         if (mac != NULL) {
2606                 macHi = (mac[5] << 8) | mac[4];
2607                 macLo = (mac[3] << 24) |
2608                         (mac[2] << 16) |
2609                         (mac[1] << 8) |
2610                         mac[0];
2611                 macLo >>= 1;
2612                 macLo |= (macHi & 1) << 31;
2613                 macHi >>= 1;
2614         } else {
2615                 macLo = macHi = 0;
2616         }
2617         REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), macLo);
2618         REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), macHi | AR_KEYTABLE_VALID);
2619
2620         return true;
2621 }
2622
2623 bool ath9k_hw_set_keycache_entry(struct ath_hw *ah, u16 entry,
2624                                  const struct ath9k_keyval *k,
2625                                  const u8 *mac)
2626 {
2627         const struct ath9k_hw_capabilities *pCap = &ah->caps;
2628         struct ath_common *common = ath9k_hw_common(ah);
2629         u32 key0, key1, key2, key3, key4;
2630         u32 keyType;
2631
2632         if (entry >= pCap->keycache_size) {
2633                 ath_print(common, ATH_DBG_FATAL,
2634                           "keycache entry %u out of range\n", entry);
2635                 return false;
2636         }
2637
2638         switch (k->kv_type) {
2639         case ATH9K_CIPHER_AES_OCB:
2640                 keyType = AR_KEYTABLE_TYPE_AES;
2641                 break;
2642         case ATH9K_CIPHER_AES_CCM:
2643                 if (!(pCap->hw_caps & ATH9K_HW_CAP_CIPHER_AESCCM)) {
2644                         ath_print(common, ATH_DBG_ANY,
2645                                   "AES-CCM not supported by mac rev 0x%x\n",
2646                                   ah->hw_version.macRev);
2647                         return false;
2648                 }
2649                 keyType = AR_KEYTABLE_TYPE_CCM;
2650                 break;
2651         case ATH9K_CIPHER_TKIP:
2652                 keyType = AR_KEYTABLE_TYPE_TKIP;
2653                 if (ATH9K_IS_MIC_ENABLED(ah)
2654                     && entry + 64 >= pCap->keycache_size) {
2655                         ath_print(common, ATH_DBG_ANY,
2656                                   "entry %u inappropriate for TKIP\n", entry);
2657                         return false;
2658                 }
2659                 break;
2660         case ATH9K_CIPHER_WEP:
2661                 if (k->kv_len < WLAN_KEY_LEN_WEP40) {
2662                         ath_print(common, ATH_DBG_ANY,
2663                                   "WEP key length %u too small\n", k->kv_len);
2664                         return false;
2665                 }
2666                 if (k->kv_len <= WLAN_KEY_LEN_WEP40)
2667                         keyType = AR_KEYTABLE_TYPE_40;
2668                 else if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2669                         keyType = AR_KEYTABLE_TYPE_104;
2670                 else
2671                         keyType = AR_KEYTABLE_TYPE_128;
2672                 break;
2673         case ATH9K_CIPHER_CLR:
2674                 keyType = AR_KEYTABLE_TYPE_CLR;
2675                 break;
2676         default:
2677                 ath_print(common, ATH_DBG_FATAL,
2678                           "cipher %u not supported\n", k->kv_type);
2679                 return false;
2680         }
2681
2682         key0 = get_unaligned_le32(k->kv_val + 0);
2683         key1 = get_unaligned_le16(k->kv_val + 4);
2684         key2 = get_unaligned_le32(k->kv_val + 6);
2685         key3 = get_unaligned_le16(k->kv_val + 10);
2686         key4 = get_unaligned_le32(k->kv_val + 12);
2687         if (k->kv_len <= WLAN_KEY_LEN_WEP104)
2688                 key4 &= 0xff;
2689
2690         /*
2691          * Note: Key cache registers access special memory area that requires
2692          * two 32-bit writes to actually update the values in the internal
2693          * memory. Consequently, the exact order and pairs used here must be
2694          * maintained.
2695          */
2696
2697         if (keyType == AR_KEYTABLE_TYPE_TKIP && ATH9K_IS_MIC_ENABLED(ah)) {
2698                 u16 micentry = entry + 64;
2699
2700                 /*
2701                  * Write inverted key[47:0] first to avoid Michael MIC errors
2702                  * on frames that could be sent or received at the same time.
2703                  * The correct key will be written in the end once everything
2704                  * else is ready.
2705                  */
2706                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), ~key0);
2707                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), ~key1);
2708
2709                 /* Write key[95:48] */
2710                 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2711                 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2712
2713                 /* Write key[127:96] and key type */
2714                 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2715                 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2716
2717                 /* Write MAC address for the entry */
2718                 (void) ath9k_hw_keysetmac(ah, entry, mac);
2719
2720                 if (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) {
2721                         /*
2722                          * TKIP uses two key cache entries:
2723                          * Michael MIC TX/RX keys in the same key cache entry
2724                          * (idx = main index + 64):
2725                          * key0 [31:0] = RX key [31:0]
2726                          * key1 [15:0] = TX key [31:16]
2727                          * key1 [31:16] = reserved
2728                          * key2 [31:0] = RX key [63:32]
2729                          * key3 [15:0] = TX key [15:0]
2730                          * key3 [31:16] = reserved
2731                          * key4 [31:0] = TX key [63:32]
2732                          */
2733                         u32 mic0, mic1, mic2, mic3, mic4;
2734
2735                         mic0 = get_unaligned_le32(k->kv_mic + 0);
2736                         mic2 = get_unaligned_le32(k->kv_mic + 4);
2737                         mic1 = get_unaligned_le16(k->kv_txmic + 2) & 0xffff;
2738                         mic3 = get_unaligned_le16(k->kv_txmic + 0) & 0xffff;
2739                         mic4 = get_unaligned_le32(k->kv_txmic + 4);
2740
2741                         /* Write RX[31:0] and TX[31:16] */
2742                         REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2743                         REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), mic1);
2744
2745                         /* Write RX[63:32] and TX[15:0] */
2746                         REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2747                         REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), mic3);
2748
2749                         /* Write TX[63:32] and keyType(reserved) */
2750                         REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), mic4);
2751                         REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2752                                   AR_KEYTABLE_TYPE_CLR);
2753
2754                 } else {
2755                         /*
2756                          * TKIP uses four key cache entries (two for group
2757                          * keys):
2758                          * Michael MIC TX/RX keys are in different key cache
2759                          * entries (idx = main index + 64 for TX and
2760                          * main index + 32 + 96 for RX):
2761                          * key0 [31:0] = TX/RX MIC key [31:0]
2762                          * key1 [31:0] = reserved
2763                          * key2 [31:0] = TX/RX MIC key [63:32]
2764                          * key3 [31:0] = reserved
2765                          * key4 [31:0] = reserved
2766                          *
2767                          * Upper layer code will call this function separately
2768                          * for TX and RX keys when these registers offsets are
2769                          * used.
2770                          */
2771                         u32 mic0, mic2;
2772
2773                         mic0 = get_unaligned_le32(k->kv_mic + 0);
2774                         mic2 = get_unaligned_le32(k->kv_mic + 4);
2775
2776                         /* Write MIC key[31:0] */
2777                         REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), mic0);
2778                         REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
2779
2780                         /* Write MIC key[63:32] */
2781                         REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), mic2);
2782                         REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
2783
2784                         /* Write TX[63:32] and keyType(reserved) */
2785                         REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
2786                         REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
2787                                   AR_KEYTABLE_TYPE_CLR);
2788                 }
2789
2790                 /* MAC address registers are reserved for the MIC entry */
2791                 REG_WRITE(ah, AR_KEYTABLE_MAC0(micentry), 0);
2792                 REG_WRITE(ah, AR_KEYTABLE_MAC1(micentry), 0);
2793
2794                 /*
2795                  * Write the correct (un-inverted) key[47:0] last to enable
2796                  * TKIP now that all other registers are set with correct
2797                  * values.
2798                  */
2799                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2800                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2801         } else {
2802                 /* Write key[47:0] */
2803                 REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), key0);
2804                 REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), key1);
2805
2806                 /* Write key[95:48] */
2807                 REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), key2);
2808                 REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), key3);
2809
2810                 /* Write key[127:96] and key type */
2811                 REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), key4);
2812                 REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), keyType);
2813
2814                 /* Write MAC address for the entry */
2815                 (void) ath9k_hw_keysetmac(ah, entry, mac);
2816         }
2817
2818         return true;
2819 }
2820
2821 bool ath9k_hw_keyisvalid(struct ath_hw *ah, u16 entry)
2822 {
2823         if (entry < ah->caps.keycache_size) {
2824                 u32 val = REG_READ(ah, AR_KEYTABLE_MAC1(entry));
2825                 if (val & AR_KEYTABLE_VALID)
2826                         return true;
2827         }
2828         return false;
2829 }
2830
2831 /******************************/
2832 /* Power Management (Chipset) */
2833 /******************************/
2834
2835 static void ath9k_set_power_sleep(struct ath_hw *ah, int setChip)
2836 {
2837         REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2838         if (setChip) {
2839                 REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2840                             AR_RTC_FORCE_WAKE_EN);
2841                 if (!AR_SREV_9100(ah))
2842                         REG_WRITE(ah, AR_RC, AR_RC_AHB | AR_RC_HOSTIF);
2843
2844                 REG_CLR_BIT(ah, (AR_RTC_RESET),
2845                             AR_RTC_RESET_EN);
2846         }
2847 }
2848
2849 static void ath9k_set_power_network_sleep(struct ath_hw *ah, int setChip)
2850 {
2851         REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2852         if (setChip) {
2853                 struct ath9k_hw_capabilities *pCap = &ah->caps;
2854
2855                 if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
2856                         REG_WRITE(ah, AR_RTC_FORCE_WAKE,
2857                                   AR_RTC_FORCE_WAKE_ON_INT);
2858                 } else {
2859                         REG_CLR_BIT(ah, AR_RTC_FORCE_WAKE,
2860                                     AR_RTC_FORCE_WAKE_EN);
2861                 }
2862         }
2863 }
2864
2865 static bool ath9k_hw_set_power_awake(struct ath_hw *ah, int setChip)
2866 {
2867         u32 val;
2868         int i;
2869
2870         if (setChip) {
2871                 if ((REG_READ(ah, AR_RTC_STATUS) &
2872                      AR_RTC_STATUS_M) == AR_RTC_STATUS_SHUTDOWN) {
2873                         if (ath9k_hw_set_reset_reg(ah,
2874                                            ATH9K_RESET_POWER_ON) != true) {
2875                                 return false;
2876                         }
2877                 }
2878                 if (AR_SREV_9100(ah))
2879                         REG_SET_BIT(ah, AR_RTC_RESET,
2880                                     AR_RTC_RESET_EN);
2881
2882                 REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2883                             AR_RTC_FORCE_WAKE_EN);
2884                 udelay(50);
2885
2886                 for (i = POWER_UP_TIME / 50; i > 0; i--) {
2887                         val = REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M;
2888                         if (val == AR_RTC_STATUS_ON)
2889                                 break;
2890                         udelay(50);
2891                         REG_SET_BIT(ah, AR_RTC_FORCE_WAKE,
2892                                     AR_RTC_FORCE_WAKE_EN);
2893                 }
2894                 if (i == 0) {
2895                         ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
2896                                   "Failed to wakeup in %uus\n",
2897                                   POWER_UP_TIME / 20);
2898                         return false;
2899                 }
2900         }
2901
2902         REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PWR_SAV);
2903
2904         return true;
2905 }
2906
2907 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
2908 {
2909         struct ath_common *common = ath9k_hw_common(ah);
2910         int status = true, setChip = true;
2911         static const char *modes[] = {
2912                 "AWAKE",
2913                 "FULL-SLEEP",
2914                 "NETWORK SLEEP",
2915                 "UNDEFINED"
2916         };
2917
2918         if (ah->power_mode == mode)
2919                 return status;
2920
2921         ath_print(common, ATH_DBG_RESET, "%s -> %s\n",
2922                   modes[ah->power_mode], modes[mode]);
2923
2924         switch (mode) {
2925         case ATH9K_PM_AWAKE:
2926                 status = ath9k_hw_set_power_awake(ah, setChip);
2927                 break;
2928         case ATH9K_PM_FULL_SLEEP:
2929                 ath9k_set_power_sleep(ah, setChip);
2930                 ah->chip_fullsleep = true;
2931                 break;
2932         case ATH9K_PM_NETWORK_SLEEP:
2933                 ath9k_set_power_network_sleep(ah, setChip);
2934                 break;
2935         default:
2936                 ath_print(common, ATH_DBG_FATAL,
2937                           "Unknown power mode %u\n", mode);
2938                 return false;
2939         }
2940         ah->power_mode = mode;
2941
2942         return status;
2943 }
2944
2945 /*
2946  * Helper for ASPM support.
2947  *
2948  * Disable PLL when in L0s as well as receiver clock when in L1.
2949  * This power saving option must be enabled through the SerDes.
2950  *
2951  * Programming the SerDes must go through the same 288 bit serial shift
2952  * register as the other analog registers.  Hence the 9 writes.
2953  */
2954 void ath9k_hw_configpcipowersave(struct ath_hw *ah, int restore, int power_off)
2955 {
2956         u8 i;
2957         u32 val;
2958
2959         if (ah->is_pciexpress != true)
2960                 return;
2961
2962         /* Do not touch SerDes registers */
2963         if (ah->config.pcie_powersave_enable == 2)
2964                 return;
2965
2966         /* Nothing to do on restore for 11N */
2967         if (!restore) {
2968                 if (AR_SREV_9280_20_OR_LATER(ah)) {
2969                         /*
2970                          * AR9280 2.0 or later chips use SerDes values from the
2971                          * initvals.h initialized depending on chipset during
2972                          * ath9k_hw_init()
2973                          */
2974                         for (i = 0; i < ah->iniPcieSerdes.ia_rows; i++) {
2975                                 REG_WRITE(ah, INI_RA(&ah->iniPcieSerdes, i, 0),
2976                                           INI_RA(&ah->iniPcieSerdes, i, 1));
2977                         }
2978                 } else if (AR_SREV_9280(ah) &&
2979                            (ah->hw_version.macRev == AR_SREV_REVISION_9280_10)) {
2980                         REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fd00);
2981                         REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
2982
2983                         /* RX shut off when elecidle is asserted */
2984                         REG_WRITE(ah, AR_PCIE_SERDES, 0xa8000019);
2985                         REG_WRITE(ah, AR_PCIE_SERDES, 0x13160820);
2986                         REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980560);
2987
2988                         /* Shut off CLKREQ active in L1 */
2989                         if (ah->config.pcie_clock_req)
2990                                 REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffc);
2991                         else
2992                                 REG_WRITE(ah, AR_PCIE_SERDES, 0x401deffd);
2993
2994                         REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
2995                         REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
2996                         REG_WRITE(ah, AR_PCIE_SERDES, 0x00043007);
2997
2998                         /* Load the new settings */
2999                         REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
3000
3001                 } else {
3002                         REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
3003                         REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
3004
3005                         /* RX shut off when elecidle is asserted */
3006                         REG_WRITE(ah, AR_PCIE_SERDES, 0x28000039);
3007                         REG_WRITE(ah, AR_PCIE_SERDES, 0x53160824);
3008                         REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980579);
3009
3010                         /*
3011                          * Ignore ah->ah_config.pcie_clock_req setting for
3012                          * pre-AR9280 11n
3013                          */
3014                         REG_WRITE(ah, AR_PCIE_SERDES, 0x001defff);
3015
3016                         REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
3017                         REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
3018                         REG_WRITE(ah, AR_PCIE_SERDES, 0x000e3007);
3019
3020                         /* Load the new settings */
3021                         REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
3022                 }
3023
3024                 udelay(1000);
3025
3026                 /* set bit 19 to allow forcing of pcie core into L1 state */
3027                 REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
3028
3029                 /* Several PCIe massages to ensure proper behaviour */
3030                 if (ah->config.pcie_waen) {
3031                         val = ah->config.pcie_waen;
3032                         if (!power_off)
3033                                 val &= (~AR_WA_D3_L1_DISABLE);
3034                 } else {
3035                         if (AR_SREV_9285(ah) || AR_SREV_9271(ah) ||
3036                             AR_SREV_9287(ah)) {
3037                                 val = AR9285_WA_DEFAULT;
3038                                 if (!power_off)
3039                                         val &= (~AR_WA_D3_L1_DISABLE);
3040                         } else if (AR_SREV_9280(ah)) {
3041                                 /*
3042                                  * On AR9280 chips bit 22 of 0x4004 needs to be
3043                                  * set otherwise card may disappear.
3044                                  */
3045                                 val = AR9280_WA_DEFAULT;
3046                                 if (!power_off)
3047                                         val &= (~AR_WA_D3_L1_DISABLE);
3048                         } else
3049                                 val = AR_WA_DEFAULT;
3050                 }
3051
3052                 REG_WRITE(ah, AR_WA, val);
3053         }
3054
3055         if (power_off) {