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Commit 46fe782c authored by Sujith's avatar Sujith Committed by John W. Linville
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ath9k: Restore TSF after RESET 



For chips requiring RTC reset, TSF has to be restored
after power on reset.

Signed-off-by: default avatarSujith <Sujith.Manoharan@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 93b1b37f

drivers/net/wireless/ath/ath9k/hw.c

+9 −0
Original line number Diff line number Diff line
@@ -2338,6 +2338,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, 
	struct ath9k_channel *curchan = ah->curchan;

	u32 saveDefAntenna;

	u32 macStaId1;

	u64 tsf = 0;

	int i, rx_chainmask, r;



	ah->extprotspacing = sc->ht_extprotspacing;
@@ -2372,6 +2373,10 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, 


	macStaId1 = REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_BASE_RATE_11B;



	/* For chips on which RTC reset is done, save TSF before it gets cleared */

	if (AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))

		tsf = ath9k_hw_gettsf64(ah);



	saveLedState = REG_READ(ah, AR_CFG_LED) &

		(AR_CFG_LED_ASSOC_CTL | AR_CFG_LED_MODE_SEL |

		 AR_CFG_LED_BLINK_THRESH_SEL | AR_CFG_LED_BLINK_SLOW);
@@ -2398,6 +2403,10 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, 
		udelay(50);

	}



	/* Restore TSF */

	if (tsf && AR_SREV_9280(ah) && ah->eep_ops->get_eeprom(ah, EEP_OL_PWRCTRL))

		ath9k_hw_settsf64(ah, tsf);



	if (AR_SREV_9280_10_OR_LATER(ah))

		REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);