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From d211df2956ae9d696bb0cab985426e0d236544b8 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 2 Jul 2012 17:16:00 +0200
Subject: [PATCH 17/20] ath9k: fix PLL initialization for AR9550
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath9k/hw.c | 27 +++++++++++++++++++--------
1 files changed, 19 insertions(+), 8 deletions(-)
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -861,7 +861,7 @@ static void ath9k_hw_init_pll(struct ath
/* program BB PLL phase_shift */
REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
AR_CH0_BB_DPLL3_PHASE_SHIFT, 0x1);
- } else if (AR_SREV_9340(ah)) {
+ } else if (AR_SREV_9340(ah) || AR_SREV_9550(ah)) {
u32 regval, pll2_divint, pll2_divfrac, refdiv;
REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
@@ -875,9 +875,15 @@ static void ath9k_hw_init_pll(struct ath
pll2_divfrac = 0x1eb85;
refdiv = 3;
} else {
- pll2_divint = 88;
- pll2_divfrac = 0;
- refdiv = 5;
+ if (AR_SREV_9340(ah)) {
+ pll2_divint = 88;
+ pll2_divfrac = 0;
+ refdiv = 5;
+ } else {
+ pll2_divint = 0x11;
+ pll2_divfrac = 0x26666;
+ refdiv = 1;
+ }
}
regval = REG_READ(ah, AR_PHY_PLL_MODE);
@@ -890,8 +896,12 @@ static void ath9k_hw_init_pll(struct ath
udelay(100);
regval = REG_READ(ah, AR_PHY_PLL_MODE);
- regval = (regval & 0x80071fff) | (0x1 << 30) | (0x1 << 13) |
- (0x4 << 26) | (0x18 << 19);
+ if (AR_SREV_9340(ah))
+ regval = (regval & 0x80071fff) | (0x1 << 30) |
+ (0x1 << 13) | (0x4 << 26) | (0x18 << 19);
+ else
+ regval = (regval & 0x80071fff) | (0x3 << 30) |
+ (0x1 << 13) | (0x4 << 26) | (0x60 << 19);
REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
REG_WRITE(ah, AR_PHY_PLL_MODE,
REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
@@ -902,7 +912,8 @@ static void ath9k_hw_init_pll(struct ath
REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
- if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah))
+ if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
+ AR_SREV_9550(ah))
udelay(1000);
/* Switch the core clock for ar9271 to 117Mhz */
@@ -915,7 +926,7 @@ static void ath9k_hw_init_pll(struct ath
REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
- if (AR_SREV_9340(ah)) {
+ if (AR_SREV_9340(ah) || AR_SREV_9550(ah)) {
if (ah->is_clk_25mhz) {
REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1);
REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7);
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