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ath9k_hw: add a private callback for PLL control computation

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The PLL control computation used to program the AR_RTC_PLL_CONTROL
register varies between our harware so just add a private callback for it.
AR9003 will use its own callback.

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
2010-04-15 17:38:17 -04:00
committed by John W. Linville
parent bbd79af563
commit 647739645b
4 changed files with 97 additions and 57 deletions
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64
drivers/net/wireless/ath/ath9k/hw.c
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@ -66,6 +66,12 @@ static bool ath9k_hw_macversion_supported(struct ath_hw *ah)
return priv_ops->macversion_supported(ah->hw_version.macVersion);
}
static u32 ath9k_hw_compute_pll_control(struct ath_hw *ah,
struct ath9k_channel *chan)
{
return ath9k_hw_private_ops(ah)->compute_pll_control(ah, chan);
}
/********************/
/* Helper Functions */
/********************/
@ -1023,64 +1029,8 @@ static void ath9k_hw_init_qos(struct ath_hw *ah)
static void ath9k_hw_init_pll(struct ath_hw *ah,
struct ath9k_channel *chan)
{
u32 pll;
u32 pll = ath9k_hw_compute_pll_control(ah, chan);
if (AR_SREV_9100(ah)) {
if (chan && IS_CHAN_5GHZ(chan))
pll = 0x1450;
else
pll = 0x1458;
} else {
if (AR_SREV_9280_10_OR_LATER(ah)) {
pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
if (chan && IS_CHAN_HALF_RATE(chan))
pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
else if (chan && IS_CHAN_QUARTER_RATE(chan))
pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
if (chan && IS_CHAN_5GHZ(chan)) {
pll |= SM(0x28, AR_RTC_9160_PLL_DIV);
if (AR_SREV_9280_20(ah)) {
if (((chan->channel % 20) == 0)
|| ((chan->channel % 10) == 0))
pll = 0x2850;
else
pll = 0x142c;
}
} else {
pll |= SM(0x2c, AR_RTC_9160_PLL_DIV);
}
} else if (AR_SREV_9160_10_OR_LATER(ah)) {
pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
if (chan && IS_CHAN_HALF_RATE(chan))
pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
else if (chan && IS_CHAN_QUARTER_RATE(chan))
pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
if (chan && IS_CHAN_5GHZ(chan))
pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
else
pll |= SM(0x58, AR_RTC_9160_PLL_DIV);
} else {
pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
if (chan && IS_CHAN_HALF_RATE(chan))
pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
else if (chan && IS_CHAN_QUARTER_RATE(chan))
pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
if (chan && IS_CHAN_5GHZ(chan))
pll |= SM(0xa, AR_RTC_PLL_DIV);
else
pll |= SM(0xb, AR_RTC_PLL_DIV);
}
}
REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
/* Switch the core clock for ar9271 to 117Mhz */