diff options
| author | Senthil Balasubramanian <senthilkumar@atheros.com> | 2010-11-11 09:40:33 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-16 22:37:05 +0100 |
| commit | a9d85fbd3e5f7a0679e6276953cd23ac7bb72789 (patch) | |
| tree | 4e7ba4d50219a8a493ff509b596f28a2581db0df /drivers/net/wireless/ath/ath9k | |
| parent | ath5k: Add support for antenna configuration (diff) | |
| download | linux-a9d85fbd3e5f7a0679e6276953cd23ac7bb72789.tar.xz linux-a9d85fbd3e5f7a0679e6276953cd23ac7bb72789.zip | |
ath9k_hw: Fix a reset failure on AR9382 (2x2).
AR9382 needs to be configured for the correct chain mask before
running AGC/TxIQ caliberation. Otherwise reset would fail.
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_calib.c | 17 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/reg.h | 2 |
2 files changed, 14 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 9e6edffe0bd1..32eed19ff6f9 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -718,12 +718,19 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan) { struct ath_common *common = ath9k_hw_common(ah); + int val; - /* - * 0x7 = 0b111 , AR9003 needs to be configured for 3-chain mode before - * running AGC/TxIQ cals - */ - ar9003_hw_set_chain_masks(ah, 0x7, 0x7); + val = REG_READ(ah, AR_ENT_OTP); + ath_print(common, ATH_DBG_CALIBRATE, "ath9k: AR_ENT_OTP 0x%x\n", val); + + if (val & AR_ENT_OTP_CHAIN2_DISABLE) + ar9003_hw_set_chain_masks(ah, 0x3, 0x3); + else + /* + * 0x7 = 0b111 , AR9003 needs to be configured for 3-chain + * mode before running AGC/TxIQ cals + */ + ar9003_hw_set_chain_masks(ah, 0x7, 0x7); /* Do Tx IQ Calibration */ ar9003_hw_tx_iq_cal(ah); diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 42976b0a01c1..ac6a13e27352 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -1065,6 +1065,8 @@ enum { #define AR_INTR_PRIO_ASYNC_MASK 0x40c8 #define AR_INTR_PRIO_SYNC_MASK 0x40cc #define AR_INTR_PRIO_ASYNC_ENABLE 0x40d4 +#define AR_ENT_OTP 0x40d8 +#define AR_ENT_OTP_CHAIN2_DISABLE 0x00020000 #define AR_RTC_9300_PLL_DIV 0x000003ff #define AR_RTC_9300_PLL_DIV_S 0 |