From: Senthil Balasubramanian <senthilkumar@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@xxxxxxxxxxx>
---
V2 - Fix indentation
drivers/net/wireless/ath/ath9k/ar9003_calib.c | 17 ++++++++++++-----
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 9e6edff..32eed19 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 fa05b71..e676a80 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -1066,6 +1066,8 @@ 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
--
1.7.0.4
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
