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Commit 5efa3a6b authored by Luis R. Rodriguez's avatar Luis R. Rodriguez Committed by John W. Linville
Browse files

ath9k_hw: enable PCIe low power mode for AR9003 



Cc: Paul Shaw <paul.shaw@atheros.com>
Cc: Don Breslin <don.breslin@atheros.com>
Signed-off-by: default avatarLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 9e385c56

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

+20 −0
Original line number Original line Diff line number Diff line
@@ -573,6 +573,26 @@ static int __ath9k_hw_init(struct ath_hw *ah) 




	ath9k_hw_init_mode_regs(ah);

	ath9k_hw_init_mode_regs(ah);





	/*

	 * Configire PCIE after Ini init. SERDES values now come from ini file

	 * This enables PCIe low power mode.

	 */

	if (AR_SREV_9300_20_OR_LATER(ah)) {

		u32 regval;

		unsigned int i;



		/* Set Bits 16 and 17 in the AR_WA register. */

		regval = REG_READ(ah, AR_WA);

		regval |= 0x00030000;

		REG_WRITE(ah, AR_WA, regval);



		for (i = 0; i < ah->iniPcieSerdesLowPower.ia_rows; i++) {

			REG_WRITE(ah,

				  INI_RA(&ah->iniPcieSerdesLowPower, i, 0),

				  INI_RA(&ah->iniPcieSerdesLowPower, i, 1));

		}

	}



	if (ah->is_pciexpress)

	if (ah->is_pciexpress)

		ath9k_hw_configpcipowersave(ah, 0, 0);

		ath9k_hw_configpcipowersave(ah, 0, 0);

	else

	else