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ath9k: clean up pll code for ar9002 to fix 5/10 mhz pll settings for 5ghz

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27362 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2011-07-02 10:48:58 +00:00
parent 49e32bd678
commit 6ee23701f2
1 changed files with 42 additions and 0 deletions
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42
package/mac80211/patches/541-ath9k_pllclock_fix.patch Normal file
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@ -0,0 +1,42 @@
--- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
@@ -447,26 +447,27 @@ static void ar9002_olc_init(struct ath_h
static u32 ar9002_hw_compute_pll_control(struct ath_hw *ah,
struct ath9k_channel *chan)
{
+ int ref_div = 5;
+ int pll_div = 0x2c;
u32 pll;
- pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
+ if (chan && IS_CHAN_5GHZ(chan) && !IS_CHAN_A_FAST_CLOCK(ah, chan)) {
+ if (AR_SREV_9280_20(ah)) {
+ ref_div = 10;
+ pll_div = 0x50;
+ } else {
+ pll_div = 0x28;
+ }
+ }
+
+ pll = SM(ref_div, AR_RTC_9160_PLL_REFDIV);
+ pll |= SM(pll_div, AR_RTC_9160_PLL_DIV);
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)) {
- if (IS_CHAN_A_FAST_CLOCK(ah, chan))
- pll = 0x142c;
- else if (AR_SREV_9280_20(ah))
- pll = 0x2850;
- else
- pll |= SM(0x28, AR_RTC_9160_PLL_DIV);
- } else {
- pll |= SM(0x2c, AR_RTC_9160_PLL_DIV);
- }
-
return pll;
}