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ath9k_hw: Fix PAPRD training 

The PAPRD training control registers have to be
programmed with values that depend on the chip. This patch
ensures that the correct values are chosen for the chip
in use.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2012-12-10 07:22:32 +05:30 committed by John W. Linville
parent b8a95db7df
commit 8c723e2df2
1 changed files with 29 additions and 7 deletions
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36
drivers/net/wireless/ath/ath9k/ar9003_paprd.c
View File

@ -204,7 +204,20 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah)
AR_PHY_PAPRD_TRAINER_CNTL1_CF_PAPRD_AGC2_SETTLING, 28);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL1,
AR_PHY_PAPRD_TRAINER_CNTL1_CF_CF_PAPRD_TRAIN_ENABLE, 1);
val = AR_SREV_9462(ah) ? 0x91 : 147;
if (AR_SREV_9485(ah)) {
val = 148;
} else {
if (IS_CHAN_2GHZ(ah->curchan)) {
if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
val = 145;
else
val = 147;
} else {
val = 137;
}
}
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL2,
AR_PHY_PAPRD_TRAINER_CNTL2_CF_PAPRD_INIT_RX_BB_GAIN, val);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
@ -215,15 +228,24 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah)
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_NUM_CORR_STAGES, 7);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_MIN_LOOPBACK_DEL, 1);
if (AR_SREV_9485(ah) || AR_SREV_9462(ah) || AR_SREV_9550(ah))
if (AR_SREV_9485(ah) ||
AR_SREV_9462(ah) ||
AR_SREV_9565(ah) ||
AR_SREV_9550(ah) ||
AR_SREV_9330(ah) ||
AR_SREV_9340(ah))
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP,
-3);
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP, -3);
else
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP,
-6);
val = AR_SREV_9462(ah) ? -10 : -15;
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP, -6);
val = -10;
if (IS_CHAN_2GHZ(ah->curchan) && !AR_SREV_9462(ah) && !AR_SREV_9565(ah))
val = -15;
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_ADC_DESIRED_SIZE,
val);