From: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
Chips in the AR9003 family have a second TSF, which
needs to be cleared when putting the card to
sleep.
Signed-off-by: Sujith Manoharan <c_manoha@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9003_wow.c | 9 +++++++++
drivers/net/wireless/ath/ath9k/reg.h | 2 ++
2 files changed, 11 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_wow.c b/drivers/net/wireless/ath/ath9k/ar9003_wow.c
index cf45b91..2dc50a0 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_wow.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_wow.c
@@ -35,6 +35,15 @@ static void ath9k_hw_set_powermode_wow_sleep(struct ath_hw *ah)
return;
}
+ if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+ if (!REG_READ(ah, AR_MAC_PCU_GEN_TIMER_TSF_SEL))
+ REG_CLR_BIT(ah, AR_DIRECT_CONNECT, AR_DC_TSF2_ENABLE);
+ } else if (AR_SREV_9485(ah)){
+ if (!(REG_READ(ah, AR_NDP2_TIMER_MODE) &
+ AR_GEN_TIMERS2_MODE_ENABLE_MASK))
+ REG_CLR_BIT(ah, AR_DIRECT_CONNECT, AR_DC_TSF2_ENABLE);
+ }
+
REG_WRITE(ah, AR_RTC_FORCE_WAKE, AR_RTC_FORCE_WAKE_ON_INT);
}
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index b1b803d..9587ec6 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -1883,6 +1883,7 @@ enum {
#define AR_FIRST_NDP_TIMER 7
#define AR_NDP2_PERIOD 0x81a0
#define AR_NDP2_TIMER_MODE 0x81c0
+#define AR_GEN_TIMERS2_MODE_ENABLE_MASK 0x000000FF
#define AR_GEN_TIMERS(_i) (0x8200 + ((_i) << 2))
#define AR_NEXT_TBTT_TIMER AR_GEN_TIMERS(0)
@@ -1978,6 +1979,7 @@ enum {
#define AR_DIRECT_CONNECT 0x83a0
#define AR_DC_AP_STA_EN 0x00000001
+#define AR_DC_TSF2_ENABLE 0x00000001
#define AR_AES_MUTE_MASK0 0x805c
#define AR_AES_MUTE_MASK0_FC 0x0000FFFF
--
2.2.2
--
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