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path: root/drivers/net/wireless/ath/ath9k/hw.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c54
1 files changed, 25 insertions, 29 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 8b2895f9ac7a..d1d0c06d627c 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -454,7 +454,7 @@ static void ath9k_hw_init_defaults(struct ath_hw *ah)
if (AR_SREV_9100(ah))
ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX;
- ah->slottime = ATH9K_SLOT_TIME_9;
+ ah->slottime = 9;
ah->globaltxtimeout = (u32) -1;
ah->power_mode = ATH9K_PM_UNDEFINED;
ah->htc_reset_init = true;
@@ -471,33 +471,34 @@ static void ath9k_hw_init_defaults(struct ath_hw *ah)
ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
}
-static int ath9k_hw_init_macaddr(struct ath_hw *ah)
+static void ath9k_hw_init_macaddr(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
- u32 sum;
int i;
u16 eeval;
static const u32 EEP_MAC[] = { EEP_MAC_LSW, EEP_MAC_MID, EEP_MAC_MSW };
- sum = 0;
+ /* MAC address may already be loaded via ath9k_platform_data */
+ if (is_valid_ether_addr(common->macaddr))
+ return;
+
for (i = 0; i < 3; i++) {
eeval = ah->eep_ops->get_eeprom(ah, EEP_MAC[i]);
- sum += eeval;
common->macaddr[2 * i] = eeval >> 8;
common->macaddr[2 * i + 1] = eeval & 0xff;
}
- if (!is_valid_ether_addr(common->macaddr)) {
- ath_err(common,
- "eeprom contains invalid mac address: %pM\n",
- common->macaddr);
- random_ether_addr(common->macaddr);
- ath_err(common,
- "random mac address will be used: %pM\n",
- common->macaddr);
- }
+ if (is_valid_ether_addr(common->macaddr))
+ return;
- return 0;
+ ath_err(common, "eeprom contains invalid mac address: %pM\n",
+ common->macaddr);
+
+ random_ether_addr(common->macaddr);
+ ath_err(common, "random mac address will be used: %pM\n",
+ common->macaddr);
+
+ return;
}
static int ath9k_hw_post_init(struct ath_hw *ah)
@@ -636,12 +637,7 @@ static int __ath9k_hw_init(struct ath_hw *ah)
if (r)
return r;
- r = ath9k_hw_init_macaddr(ah);
- if (r) {
- ath_err(common, "Failed to initialize MAC address\n");
- return r;
- }
-
+ ath9k_hw_init_macaddr(ah);
ath9k_hw_init_hang_checks(ah);
common->state = ATH_HW_INITIALIZED;
@@ -1832,8 +1828,9 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
u32 saveLedState;
u32 saveDefAntenna;
u32 macStaId1;
+ struct timespec tsf_ts;
+ u32 tsf_offset;
u64 tsf = 0;
- s64 usec = 0;
int r;
bool start_mci_reset = false;
bool save_fullsleep = ah->chip_fullsleep;
@@ -1877,8 +1874,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;
/* Save TSF before chip reset, a cold reset clears it */
+ getrawmonotonic(&tsf_ts);
tsf = ath9k_hw_gettsf64(ah);
- usec = ktime_to_us(ktime_get_raw());
saveLedState = REG_READ(ah, AR_CFG_LED) &
(AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |
@@ -1911,8 +1908,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
}
/* Restore TSF */
- usec = ktime_to_us(ktime_get_raw()) - usec;
- ath9k_hw_settsf64(ah, tsf + usec);
+ tsf_offset = ath9k_hw_get_tsf_offset(&tsf_ts, NULL);
+ ath9k_hw_settsf64(ah, tsf + tsf_offset);
if (AR_SREV_9280_20_OR_LATER(ah))
REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
@@ -1932,12 +1929,11 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
/*
* Some AR91xx SoC devices frequently fail to accept TSF writes
* right after the chip reset. When that happens, write a new
- * value after the initvals have been applied, with an offset
- * based on measured time difference
+ * value after the initvals have been applied.
*/
if (AR_SREV_9100(ah) && (ath9k_hw_gettsf64(ah) < tsf)) {
- tsf += 1500;
- ath9k_hw_settsf64(ah, tsf);
+ tsf_offset = ath9k_hw_get_tsf_offset(&tsf_ts, NULL);
+ ath9k_hw_settsf64(ah, tsf + tsf_offset);
}
ath9k_hw_init_mfp(ah);