]> Pileus Git - ~andy/linux/blobdiff - drivers/net/wireless/ath/ath9k/hw.c
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[~andy/linux] / drivers / net / wireless / ath / ath9k / hw.c
index 338b07502f1adc5621c60815a8f5ce8c0e0345e6..045abd5578407b2a2cf5645ebaaa232ea2cfaed1 100644 (file)
@@ -130,6 +130,20 @@ bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout)
 }
 EXPORT_SYMBOL(ath9k_hw_wait);
 
+void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array,
+                         int column, unsigned int *writecnt)
+{
+       int r;
+
+       ENABLE_REGWRITE_BUFFER(ah);
+       for (r = 0; r < array->ia_rows; r++) {
+               REG_WRITE(ah, INI_RA(array, r, 0),
+                         INI_RA(array, r, column));
+               DO_DELAY(*writecnt);
+       }
+       REGWRITE_BUFFER_FLUSH(ah);
+}
+
 u32 ath9k_hw_reverse_bits(u32 val, u32 n)
 {
        u32 retval;
@@ -142,25 +156,6 @@ u32 ath9k_hw_reverse_bits(u32 val, u32 n)
        return retval;
 }
 
-bool ath9k_get_channel_edges(struct ath_hw *ah,
-                            u16 flags, u16 *low,
-                            u16 *high)
-{
-       struct ath9k_hw_capabilities *pCap = &ah->caps;
-
-       if (flags & CHANNEL_5GHZ) {
-               *low = pCap->low_5ghz_chan;
-               *high = pCap->high_5ghz_chan;
-               return true;
-       }
-       if ((flags & CHANNEL_2GHZ)) {
-               *low = pCap->low_2ghz_chan;
-               *high = pCap->high_2ghz_chan;
-               return true;
-       }
-       return false;
-}
-
 u16 ath9k_hw_computetxtime(struct ath_hw *ah,
                           u8 phy, int kbps,
                           u32 frameLen, u16 rateix,
@@ -364,11 +359,6 @@ static void ath9k_hw_init_config(struct ath_hw *ah)
                ah->config.spurchans[i][1] = AR_NO_SPUR;
        }
 
-       if (ah->hw_version.devid != AR2427_DEVID_PCIE)
-               ah->config.ht_enable = 1;
-       else
-               ah->config.ht_enable = 0;
-
        /* PAPRD needs some more work to be enabled */
        ah->config.paprd_disable = 1;
 
@@ -410,6 +400,8 @@ static void ath9k_hw_init_defaults(struct ath_hw *ah)
        ah->sta_id1_defaults =
                AR_STA_ID1_CRPT_MIC_ENABLE |
                AR_STA_ID1_MCAST_KSRCH;
+       if (AR_SREV_9100(ah))
+               ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
        ah->enable_32kHz_clock = DONT_USE_32KHZ;
        ah->slottime = 20;
        ah->globaltxtimeout = (u32) -1;
@@ -673,53 +665,66 @@ static void ath9k_hw_init_qos(struct ath_hw *ah)
 
 unsigned long ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
 {
-               REG_WRITE(ah, PLL3, (REG_READ(ah, PLL3) & ~(PLL3_DO_MEAS_MASK)));
-               udelay(100);
-               REG_WRITE(ah, PLL3, (REG_READ(ah, PLL3) | PLL3_DO_MEAS_MASK));
+       REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
+       udelay(100);
+       REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
 
-               while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
-                       udelay(100);
+       while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
+               udelay(100);
 
-               return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
+       return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
 }
 EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
 
-#define DPLL2_KD_VAL            0x3D
-#define DPLL2_KI_VAL            0x06
-#define DPLL3_PHASE_SHIFT_VAL   0x1
-
+#define DPLL3_PHASE_SHIFT_VAL 0x1
 static void ath9k_hw_init_pll(struct ath_hw *ah,
                              struct ath9k_channel *chan)
 {
        u32 pll;
 
        if (AR_SREV_9485(ah)) {
-               REG_WRITE(ah, AR_RTC_PLL_CONTROL2, 0x886666);
-               REG_WRITE(ah, AR_CH0_DDR_DPLL2, 0x19e82f01);
-
-               REG_RMW_FIELD(ah, AR_CH0_DDR_DPLL3,
-                             AR_CH0_DPLL3_PHASE_SHIFT, DPLL3_PHASE_SHIFT_VAL);
 
-               REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
-               udelay(1000);
+               /* program BB PLL ki and kd value, ki=0x4, kd=0x40 */
+               REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+                             AR_CH0_BB_DPLL2_PLL_PWD, 0x1);
+               REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+                             AR_CH0_DPLL2_KD, 0x40);
+               REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+                             AR_CH0_DPLL2_KI, 0x4);
 
-               REG_WRITE(ah, AR_RTC_PLL_CONTROL2, 0x886666);
+               REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
+                             AR_CH0_BB_DPLL1_REFDIV, 0x5);
+               REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
+                             AR_CH0_BB_DPLL1_NINI, 0x58);
+               REG_RMW_FIELD(ah, AR_CH0_BB_DPLL1,
+                             AR_CH0_BB_DPLL1_NFRAC, 0x0);
 
                REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
-                             AR_CH0_DPLL2_KD, DPLL2_KD_VAL);
+                             AR_CH0_BB_DPLL2_OUTDIV, 0x1);
+               REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+                             AR_CH0_BB_DPLL2_LOCAL_PLL, 0x1);
                REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
-                             AR_CH0_DPLL2_KI, DPLL2_KI_VAL);
+                             AR_CH0_BB_DPLL2_EN_NEGTRIG, 0x1);
 
+               /* program BB PLL phase_shift to 0x6 */
                REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
-                             AR_CH0_DPLL3_PHASE_SHIFT, DPLL3_PHASE_SHIFT_VAL);
-               REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x142c);
+                             AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x6);
+
+               REG_RMW_FIELD(ah, AR_CH0_BB_DPLL2,
+                             AR_CH0_BB_DPLL2_PLL_PWD, 0x0);
                udelay(1000);
+
+               REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
+                             AR_CH0_DPLL3_PHASE_SHIFT, DPLL3_PHASE_SHIFT_VAL);
        }
 
        pll = ath9k_hw_compute_pll_control(ah, chan);
 
        REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
 
+       if (AR_SREV_9485(ah))
+               udelay(1000);
+
        /* Switch the core clock for ar9271 to 117Mhz */
        if (AR_SREV_9271(ah)) {
                udelay(500);
@@ -830,8 +835,7 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah)
                ah->misc_mode);
 
        if (ah->misc_mode != 0)
-               REG_WRITE(ah, AR_PCU_MISC,
-                         REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
+               REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
 
        if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
                sifstime = 16;
@@ -899,23 +903,19 @@ u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
 static inline void ath9k_hw_set_dma(struct ath_hw *ah)
 {
        struct ath_common *common = ath9k_hw_common(ah);
-       u32 regval;
 
        ENABLE_REGWRITE_BUFFER(ah);
 
        /*
         * set AHB_MODE not to do cacheline prefetches
        */
-       if (!AR_SREV_9300_20_OR_LATER(ah)) {
-               regval = REG_READ(ah, AR_AHB_MODE);
-               REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
-       }
+       if (!AR_SREV_9300_20_OR_LATER(ah))
+               REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
 
        /*
         * let mac dma reads be in 128 byte chunks
         */
-       regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
-       REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
+       REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
 
        REGWRITE_BUFFER_FLUSH(ah);
 
@@ -932,8 +932,7 @@ static inline void ath9k_hw_set_dma(struct ath_hw *ah)
        /*
         * let mac dma writes be in 128 byte chunks
         */
-       regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
-       REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
+       REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
 
        /*
         * Setup receive FIFO threshold to hold off TX activities
@@ -972,30 +971,27 @@ static inline void ath9k_hw_set_dma(struct ath_hw *ah)
 
 static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
 {
-       u32 val;
+       u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
+       u32 set = AR_STA_ID1_KSRCH_MODE;
 
-       val = REG_READ(ah, AR_STA_ID1);
-       val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
        switch (opmode) {
-       case NL80211_IFTYPE_AP:
-               REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
-                         | AR_STA_ID1_KSRCH_MODE);
-               REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
-               break;
        case NL80211_IFTYPE_ADHOC:
        case NL80211_IFTYPE_MESH_POINT:
-               REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
-                         | AR_STA_ID1_KSRCH_MODE);
+               set |= AR_STA_ID1_ADHOC;
                REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
                break;
+       case NL80211_IFTYPE_AP:
+               set |= AR_STA_ID1_STA_AP;
+               /* fall through */
        case NL80211_IFTYPE_STATION:
-               REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
+               REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
                break;
        default:
-               if (ah->is_monitoring)
-                       REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
+               if (!ah->is_monitoring)
+                       set = 0;
                break;
        }
+       REG_RMW(ah, AR_STA_ID1, set, mask);
 }
 
 void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
@@ -1021,10 +1017,8 @@ static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
        u32 tmpReg;
 
        if (AR_SREV_9100(ah)) {
-               u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
-               val &= ~AR_RTC_DERIVED_CLK_PERIOD;
-               val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
-               REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
+               REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
+                             AR_RTC_DERIVED_CLK_PERIOD, 1);
                (void)REG_READ(ah, AR_RTC_DERIVED_CLK);
        }
 
@@ -1212,6 +1206,20 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah,
        return true;
 }
 
+static void ath9k_hw_apply_gpio_override(struct ath_hw *ah)
+{
+       u32 gpio_mask = ah->gpio_mask;
+       int i;
+
+       for (i = 0; gpio_mask; i++, gpio_mask >>= 1) {
+               if (!(gpio_mask & 1))
+                       continue;
+
+               ath9k_hw_cfg_output(ah, i, AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+               ath9k_hw_set_gpio(ah, i, !!(ah->gpio_val & BIT(i)));
+       }
+}
+
 bool ath9k_hw_check_alive(struct ath_hw *ah)
 {
        int count = 50;
@@ -1254,15 +1262,6 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
        ah->txchainmask = common->tx_chainmask;
        ah->rxchainmask = common->rx_chainmask;
 
-       if ((common->bus_ops->ath_bus_type != ATH_USB) && !ah->chip_fullsleep) {
-               ath9k_hw_abortpcurecv(ah);
-               if (!ath9k_hw_stopdmarecv(ah)) {
-                       ath_dbg(common, ATH_DBG_XMIT,
-                               "Failed to stop receive dma\n");
-                       bChannelChange = false;
-               }
-       }
-
        if (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
                return -EIO;
 
@@ -1418,7 +1417,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
        REGWRITE_BUFFER_FLUSH(ah);
 
        ah->intr_txqs = 0;
-       for (i = 0; i < ah->caps.total_queues; i++)
+       for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
                ath9k_hw_resettxqueue(ah, i);
 
        ath9k_hw_init_interrupt_masks(ah, ah->opmode);
@@ -1435,8 +1434,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
                ar9002_hw_enable_wep_aggregation(ah);
        }
 
-       REG_WRITE(ah, AR_STA_ID1,
-                 REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
+       REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
 
        ath9k_hw_set_dma(ah);
 
@@ -1500,6 +1498,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
        if (AR_SREV_9300_20_OR_LATER(ah))
                ar9003_hw_bb_watchdog_config(ah);
 
+       ath9k_hw_apply_gpio_override(ah);
+
        return 0;
 }
 EXPORT_SYMBOL(ath9k_hw_reset);
@@ -1679,21 +1679,15 @@ void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
        case NL80211_IFTYPE_MESH_POINT:
                REG_SET_BIT(ah, AR_TXCFG,
                            AR_TXCFG_ADHOC_BEACON_ATIM_TX_POLICY);
-               REG_WRITE(ah, AR_NEXT_NDP_TIMER,
-                         TU_TO_USEC(next_beacon +
-                                    (ah->atim_window ? ah->
-                                     atim_window : 1)));
+               REG_WRITE(ah, AR_NEXT_NDP_TIMER, next_beacon +
+                         TU_TO_USEC(ah->atim_window ? ah->atim_window : 1));
                flags |= AR_NDP_TIMER_EN;
        case NL80211_IFTYPE_AP:
-               REG_WRITE(ah, AR_NEXT_TBTT_TIMER, TU_TO_USEC(next_beacon));
-               REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT,
-                         TU_TO_USEC(next_beacon -
-                                    ah->config.
-                                    dma_beacon_response_time));
-               REG_WRITE(ah, AR_NEXT_SWBA,
-                         TU_TO_USEC(next_beacon -
-                                    ah->config.
-                                    sw_beacon_response_time));
+               REG_WRITE(ah, AR_NEXT_TBTT_TIMER, next_beacon);
+               REG_WRITE(ah, AR_NEXT_DMA_BEACON_ALERT, next_beacon -
+                         TU_TO_USEC(ah->config.dma_beacon_response_time));
+               REG_WRITE(ah, AR_NEXT_SWBA, next_beacon -
+                         TU_TO_USEC(ah->config.sw_beacon_response_time));
                flags |=
                        AR_TBTT_TIMER_EN | AR_DBA_TIMER_EN | AR_SWBA_TIMER_EN;
                break;
@@ -1705,18 +1699,13 @@ void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period)
                break;
        }
 
-       REG_WRITE(ah, AR_BEACON_PERIOD, TU_TO_USEC(beacon_period));
-       REG_WRITE(ah, AR_DMA_BEACON_PERIOD, TU_TO_USEC(beacon_period));
-       REG_WRITE(ah, AR_SWBA_PERIOD, TU_TO_USEC(beacon_period));
-       REG_WRITE(ah, AR_NDP_PERIOD, TU_TO_USEC(beacon_period));
+       REG_WRITE(ah, AR_BEACON_PERIOD, beacon_period);
+       REG_WRITE(ah, AR_DMA_BEACON_PERIOD, beacon_period);
+       REG_WRITE(ah, AR_SWBA_PERIOD, beacon_period);
+       REG_WRITE(ah, AR_NDP_PERIOD, beacon_period);
 
        REGWRITE_BUFFER_FLUSH(ah);
 
-       beacon_period &= ~ATH9K_BEACON_ENA;
-       if (beacon_period & ATH9K_BEACON_RESET_TSF) {
-               ath9k_hw_reset_tsf(ah);
-       }
-
        REG_SET_BIT(ah, AR_TIMER_MODE, flags);
 }
 EXPORT_SYMBOL(ath9k_hw_beaconinit);
@@ -1851,6 +1840,8 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
            !(AR_SREV_9271(ah)))
                /* CB71: GPIO 0 is pulled down to indicate 3 rx chains */
                pCap->rx_chainmask = ath9k_hw_gpio_get(ah, 0) ? 0x5 : 0x7;
+       else if (AR_SREV_9100(ah))
+               pCap->rx_chainmask = 0x7;
        else
                /* Use rx_chainmask from EEPROM. */
                pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK);
@@ -1861,36 +1852,13 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
        if (AR_SREV_9300_20_OR_LATER(ah))
                ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
 
-       pCap->low_2ghz_chan = 2312;
-       pCap->high_2ghz_chan = 2732;
-
-       pCap->low_5ghz_chan = 4920;
-       pCap->high_5ghz_chan = 6100;
-
        common->crypt_caps |= ATH_CRYPT_CAP_CIPHER_AESCCM;
 
-       if (ah->config.ht_enable)
+       if (ah->hw_version.devid != AR2427_DEVID_PCIE)
                pCap->hw_caps |= ATH9K_HW_CAP_HT;
        else
                pCap->hw_caps &= ~ATH9K_HW_CAP_HT;
 
-       if (capField & AR_EEPROM_EEPCAP_MAXQCU)
-               pCap->total_queues =
-                       MS(capField, AR_EEPROM_EEPCAP_MAXQCU);
-       else
-               pCap->total_queues = ATH9K_NUM_TX_QUEUES;
-
-       if (capField & AR_EEPROM_EEPCAP_KC_ENTRIES)
-               pCap->keycache_size =
-                       1 << MS(capField, AR_EEPROM_EEPCAP_KC_ENTRIES);
-       else
-               pCap->keycache_size = AR_KEYTABLE_SIZE;
-
-       if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
-               pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD >> 1;
-       else
-               pCap->tx_triglevel_max = MAX_TX_FIFO_THRESHOLD;
-
        if (AR_SREV_9271(ah))
                pCap->num_gpio_pins = AR9271_NUM_GPIO;
        else if (AR_DEVID_7010(ah))
@@ -1909,8 +1877,6 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
                pCap->rts_aggr_limit = (8 * 1024);
        }
 
-       pCap->hw_caps |= ATH9K_HW_CAP_ENHANCEDPM;
-
 #if defined(CONFIG_RFKILL) || defined(CONFIG_RFKILL_MODULE)
        ah->rfsilent = ah->eep_ops->get_eeprom(ah, EEP_RF_SILENT);
        if (ah->rfsilent & EEP_RFSILENT_ENABLED) {
@@ -1932,23 +1898,6 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
        else
                pCap->hw_caps |= ATH9K_HW_CAP_4KB_SPLITTRANS;
 
-       if (regulatory->current_rd_ext & (1 << REG_EXT_JAPAN_MIDBAND)) {
-               pCap->reg_cap =
-                       AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
-                       AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN |
-                       AR_EEPROM_EEREGCAP_EN_KK_U2 |
-                       AR_EEPROM_EEREGCAP_EN_KK_MIDBAND;
-       } else {
-               pCap->reg_cap =
-                       AR_EEPROM_EEREGCAP_EN_KK_NEW_11A |
-                       AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN;
-       }
-
-       /* Advertise midband for AR5416 with FCC midband set in eeprom */
-       if (regulatory->current_rd_ext & (1 << REG_EXT_FCC_MIDBAND) &&
-           AR_SREV_5416(ah))
-               pCap->reg_cap |= AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND;
-
        if (AR_SREV_9280_20_OR_LATER(ah) && common->btcoex_enabled) {
                btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO;
                btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO;
@@ -2195,11 +2144,9 @@ void ath9k_hw_setrxfilter(struct ath_hw *ah, u32 bits)
        REG_WRITE(ah, AR_PHY_ERR, phybits);
 
        if (phybits)
-               REG_WRITE(ah, AR_RXCFG,
-                         REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
+               REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
        else
-               REG_WRITE(ah, AR_RXCFG,
-                         REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
+               REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
 
        REGWRITE_BUFFER_FLUSH(ah);
 }
@@ -2375,10 +2322,11 @@ static u32 rightmost_index(struct ath_gen_timer_table *timer_table, u32 *mask)
        return timer_table->gen_timer_index[b];
 }
 
-static u32 ath9k_hw_gettsf32(struct ath_hw *ah)
+u32 ath9k_hw_gettsf32(struct ath_hw *ah)
 {
        return REG_READ(ah, AR_TSF_L32);
 }
+EXPORT_SYMBOL(ath9k_hw_gettsf32);
 
 struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
                                          void (*trigger)(void *),
@@ -2546,6 +2494,7 @@ static struct {
        { AR_SREV_VERSION_9287,         "9287" },
        { AR_SREV_VERSION_9271,         "9271" },
        { AR_SREV_VERSION_9300,         "9300" },
+       { AR_SREV_VERSION_9485,         "9485" },
 };
 
 /* For devices with external radios */