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authorSujith Manoharan <c_manoha@qca.qualcomm.com>2012-04-11 09:34:08 +0530
committerJohn W. Linville <linville@tuxdriver.com>2012-04-13 14:32:50 -0400
commitf58cc809d2fe60989095c7b55fd14e1935a2f72a (patch)
tree7f6cbf7406d244b330a889ae3b739cc9c5730c1d
parentd01b31604c55c52e08fbc6fc160137a12983df64 (diff)
downloadblackbird-op-linux-f58cc809d2fe60989095c7b55fd14e1935a2f72a.tar.gz
blackbird-op-linux-f58cc809d2fe60989095c7b55fd14e1935a2f72a.zip
ath9k_hw: Remove BTCOEX initvals
The MAX_TXPWR table for BTCOEX is not needed for AR9462. Programming these values to the HW results in undesirable behavior - for example, large number of delimiter/data underruns are seen in AES-CCMP mode. Also, registers like AR_PCU_MISC_MODE2 return 0xdeadbeef after the BTCOEX_MAX power table is programmed to the HW, and frames being transmitted end up being looped back to the RX engine, an example being beacon frames in IBSS mode. Remove this table for now - this fixes CCMP performance and general IBSS usage. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_hw.c5
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_phy.c3
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h12
3 files changed, 0 insertions, 20 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index 0f56e322dd3b..a0e3394b10dc 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -305,11 +305,6 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
ar9462_common_rx_gain_table_2p0,
ARRAY_SIZE(ar9462_common_rx_gain_table_2p0), 2);
- INIT_INI_ARRAY(&ah->ini_BTCOEX_MAX_TXPWR,
- ar9462_2p0_BTCOEX_MAX_TXPWR_table,
- ARRAY_SIZE(ar9462_2p0_BTCOEX_MAX_TXPWR_table),
- 2);
-
/* Awake -> Sleep Setting */
INIT_INI_ARRAY(&ah->iniPcieSerdes,
PCIE_PLL_ON_CREQ_DIS_L1_2P0,
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 04d12252731c..4c9bc9f14f79 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -683,9 +683,6 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
- if (AR_SREV_9462(ah))
- ar9003_hw_prog_ini(ah, &ah->ini_BTCOEX_MAX_TXPWR, 1);
-
if (chan->channel == 2484)
ar9003_hw_prog_ini(ah, &ah->ini_japan2484, 1);
diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
index b6ba1e8149be..b39870ce3f2e 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h
@@ -1448,16 +1448,4 @@ static const u32 ar9462_common_mixed_rx_gain_table_2p0[][2] = {
{0x0000b1fc, 0x00000196},
};
-static const u32 ar9462_2p0_BTCOEX_MAX_TXPWR_table[][2] = {
- /* Addr allmodes */
- {0x000018c0, 0x10101010},
- {0x000018c4, 0x10101010},
- {0x000018c8, 0x10101010},
- {0x000018cc, 0x10101010},
- {0x000018d0, 0x10101010},
- {0x000018d4, 0x10101010},
- {0x000018d8, 0x10101010},
- {0x000018dc, 0x10101010},
-};
-
#endif /* INITVALS_9462_2P0_H */
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