From 7a722ebc596a572a9b24cfe1466642faa6a8988a Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Wed, 28 Jan 2015 17:54:24 +0530 Subject: [PATCH] ath9k: Fix manual peak calibration initialization The LNA gain setting override needs to be done only for AR9330 and PCOEM chips. Signed-off-by: Sujith Manoharan Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath9k/ar9003_calib.c | 38 +++++++++++++++---- 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 06ab71db6e80..374aef1d9008 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -1205,22 +1205,34 @@ static void ar9003_hw_manual_peak_cal(struct ath_hw *ah, u8 chain, bool is_2g) int offset[8] = {0}, total = 0, test; int agc_out, i; + /* + * Turn off LNA/SW. + */ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), AR_PHY_65NM_RXRF_GAINSTAGES_RX_OVERRIDE, 0x1); REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), AR_PHY_65NM_RXRF_GAINSTAGES_LNAON_CALDC, 0x0); - if (is_2g) - REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), - AR_PHY_65NM_RXRF_GAINSTAGES_LNA2G_GAIN_OVR, 0x0); - else - REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), - AR_PHY_65NM_RXRF_GAINSTAGES_LNA5G_GAIN_OVR, 0x0); + if (AR_SREV_9003_PCOEM(ah) || AR_SREV_9330_11(ah)) { + if (is_2g) + REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), + AR_PHY_65NM_RXRF_GAINSTAGES_LNA2G_GAIN_OVR, 0x0); + else + REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), + AR_PHY_65NM_RXRF_GAINSTAGES_LNA5G_GAIN_OVR, 0x0); + } + + /* + * Turn off RXON. + */ REG_RMW_FIELD(ah, AR_PHY_65NM_RXTX2(chain), AR_PHY_65NM_RXTX2_RXON_OVR, 0x1); REG_RMW_FIELD(ah, AR_PHY_65NM_RXTX2(chain), AR_PHY_65NM_RXTX2_RXON, 0x0); + /* + * Turn on AGC for cal. + */ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE, 0x1); REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), @@ -1228,10 +1240,11 @@ static void ar9003_hw_manual_peak_cal(struct ath_hw *ah, u8 chain, bool is_2g) REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), AR_PHY_65NM_RXRF_AGC_AGC_CAL_OVR, 0x1); - if (AR_SREV_9330_11(ah)) { + if (AR_SREV_9330_11(ah)) REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR, 0x0); - } else { + + if (AR_SREV_9003_PCOEM(ah)) { if (is_2g) REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), AR_PHY_65NM_RXRF_AGC_AGC2G_DBDAC_OVR, 0x0); @@ -1266,10 +1279,19 @@ static void ar9003_hw_manual_peak_cal(struct ath_hw *ah, u8 chain, bool is_2g) REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR, total); + /* + * Turn on LNA. + */ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_GAINSTAGES(chain), AR_PHY_65NM_RXRF_GAINSTAGES_RX_OVERRIDE, 0); + /* + * Turn off RXON. + */ REG_RMW_FIELD(ah, AR_PHY_65NM_RXTX2(chain), AR_PHY_65NM_RXTX2_RXON_OVR, 0); + /* + * Turn off peak detect calibration. + */ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain), AR_PHY_65NM_RXRF_AGC_AGC_CAL_OVR, 0); } -- 2.20.1