[PATCH 05/13] b43: HT-PHY: implement MAC reclocking
Rafał Miłecki
zajec5 at gmail.com
Thu Mar 7 10:47:19 EST 2013
Signed-off-by: Rafał Miłecki <zajec5 at gmail.com>
---
drivers/net/wireless/b43/phy_ht.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/net/wireless/b43/phy_ht.c b/drivers/net/wireless/b43/phy_ht.c
index 4ccd371..4b24816 100644
--- a/drivers/net/wireless/b43/phy_ht.c
+++ b/drivers/net/wireless/b43/phy_ht.c
@@ -290,6 +290,7 @@ static void b43_phy_ht_spur_avoid(struct b43_wldev *dev,
{
struct bcma_device *core = dev->dev->bdev;
int spuravoid = 0;
+ u16 tmp;
/* Check for 13 and 14 is just a guess, we don't have enough logs. */
if (new_channel->hw_value == 13 || new_channel->hw_value == 14)
@@ -301,6 +302,23 @@ static void b43_phy_ht_spur_avoid(struct b43_wldev *dev,
B43_BCMA_CLKCTLST_PHY_PLL_REQ,
B43_BCMA_CLKCTLST_80211_PLL_ST |
B43_BCMA_CLKCTLST_PHY_PLL_ST, false);
+
+ /* Values has been taken from wlc_bmac_switch_macfreq comments */
+ switch (spuravoid) {
+ case 2: /* 126MHz */
+ tmp = 0x2082;
+ break;
+ case 1: /* 123MHz */
+ tmp = 0x5341;
+ break;
+ default: /* 120MHz */
+ tmp = 0x8889;
+ }
+
+ b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, tmp);
+ b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
+
+ /* TODO: reset PLL */
}
static void b43_phy_ht_channel_setup(struct b43_wldev *dev,
--
1.7.10.4
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