ath9k_hw: Implement PLL control on AR9003
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index f1632ab..9767265 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -112,8 +112,27 @@
static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
struct ath9k_channel *chan)
{
- /* TODO */
- return 0;
+ u32 pll;
+
+ pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);
+
+ if (chan && IS_CHAN_HALF_RATE(chan))
+ pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
+ else if (chan && IS_CHAN_QUARTER_RATE(chan))
+ pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);
+
+ if (chan && IS_CHAN_5GHZ(chan)) {
+ pll |= SM(0x28, AR_RTC_9300_PLL_DIV);
+
+ /*
+ * When doing fast clock, set PLL to 0x142c
+ */
+ if (IS_CHAN_A_5MHZ_SPACED(chan))
+ pll = 0x142c;
+ } else
+ pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
+
+ return pll;
}
static void ar9003_hw_set_channel_regs(struct ath_hw *ah,