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ath9k_hw: enable PCIe low power mode for AR9003

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Cc: Paul Shaw <paul.shaw@atheros.com>
Cc: Don Breslin <don.breslin@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2010-05-07 18:23:22 -04:00 committed by John W. Linville
parent 9e385c56a1
commit 5efa3a6bf4
1 changed files with 20 additions and 0 deletions
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20
drivers/net/wireless/ath/ath9k/hw.c
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@ -573,6 +573,26 @@ static int __ath9k_hw_init(struct ath_hw *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)
ath9k_hw_configpcipowersave(ah, 0, 0);
else