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ath9k_hw: Fix async fifo for AR9287 

Async fifo is now enabled only for versions 1.3 and above.
Enable it in the appropriate place, in the reset routine,
instead of process_ini().

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2010-06-01 15:14:10 +05:30 committed by John W. Linville
parent 15ae733b25
commit e9141f71f4
5 changed files with 55 additions and 44 deletions
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11
drivers/net/wireless/ath/ath9k/ar5008_phy.c
View File

@ -742,17 +742,6 @@ static int ar5008_hw_process_ini(struct ath_hw *ah,
return -EINVAL;
}
if (AR_SREV_9287_12_OR_LATER(ah)) {
/* Enable ASYNC FIFO */
REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
}
/*
* Set correct baseband to analog shift setting to
* access analog chips.

22
drivers/net/wireless/ath/ath9k/ar9002_hw.c
View File

@ -18,6 +18,7 @@
#include "ar5008_initvals.h"
#include "ar9001_initvals.h"
#include "ar9002_initvals.h"
#include "ar9002_phy.h"
/* General hardware code for the A5008/AR9001/AR9002 hadware families */
@ -565,18 +566,29 @@ int ar9002_hw_rf_claim(struct ath_hw *ah)
return 0;
}
void ar9002_hw_enable_async_fifo(struct ath_hw *ah)
{
if (AR_SREV_9287_13_OR_LATER(ah)) {
REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
}
}
/*
* Enable ASYNC FIFO
*
* If Async FIFO is enabled, the following counters change as MAC now runs
* at 117 Mhz instead of 88/44MHz when async FIFO is disabled.
*
* The values below tested for ht40 2 chain.
* Overwrite the delay/timeouts initialized in process ini.
*/
void ar9002_hw_enable_async_fifo(struct ath_hw *ah)
void ar9002_hw_update_async_fifo(struct ath_hw *ah)
{
if (AR_SREV_9287_12_OR_LATER(ah)) {
if (AR_SREV_9287_13_OR_LATER(ah)) {
REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
@ -600,7 +612,7 @@ void ar9002_hw_enable_async_fifo(struct ath_hw *ah)
*/
void ar9002_hw_enable_wep_aggregation(struct ath_hw *ah)
{
if (AR_SREV_9287_12_OR_LATER(ah)) {
if (AR_SREV_9287_13_OR_LATER(ah)) {
REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
}

5
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -1298,6 +1298,9 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
if (AR_SREV_9280_10_OR_LATER(ah))
REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
if (!AR_SREV_9300_20_OR_LATER(ah))
ar9002_hw_enable_async_fifo(ah);
r = ath9k_hw_process_ini(ah, chan);
if (r)
return r;
@ -1370,7 +1373,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
ath9k_hw_init_global_settings(ah);
if (!AR_SREV_9300_20_OR_LATER(ah)) {
ar9002_hw_enable_async_fifo(ah);
ar9002_hw_update_async_fifo(ah);
ar9002_hw_enable_wep_aggregation(ah);
}

1
drivers/net/wireless/ath/ath9k/hw.h
View File

@ -911,6 +911,7 @@ void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
void ar9002_hw_cck_chan14_spread(struct ath_hw *ah);
int ar9002_hw_rf_claim(struct ath_hw *ah);
void ar9002_hw_enable_async_fifo(struct ath_hw *ah);
void ar9002_hw_update_async_fifo(struct ath_hw *ah);
void ar9002_hw_enable_wep_aggregation(struct ath_hw *ah);
/*

6
drivers/net/wireless/ath/ath9k/reg.h
View File

@ -781,6 +781,7 @@
#define AR_SREV_REVISION_9287_10 0
#define AR_SREV_REVISION_9287_11 1
#define AR_SREV_REVISION_9287_12 2
#define AR_SREV_REVISION_9287_13 3
#define AR_SREV_VERSION_9271 0x140
#define AR_SREV_REVISION_9271_10 0
#define AR_SREV_REVISION_9271_11 1
@ -863,6 +864,11 @@
(((_ah)->hw_version.macVersion > AR_SREV_VERSION_9287) || \
(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9287) && \
((_ah)->hw_version.macRev >= AR_SREV_REVISION_9287_12)))
#define AR_SREV_9287_13_OR_LATER(_ah) \
(((_ah)->hw_version.macVersion > AR_SREV_VERSION_9287) || \
(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9287) && \
((_ah)->hw_version.macRev >= AR_SREV_REVISION_9287_13)))
#define AR_SREV_9271(_ah) \
(((_ah))->hw_version.macVersion == AR_SREV_VERSION_9271)
#define AR_SREV_9271_10(_ah) \