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b43: HT-PHY: implement MAC reclocking

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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2013-03-07 16:47:19 +01:00 committed by John W. Linville
parent 2dacfe7c10
commit d7bb7ca8e5
1 changed files with 18 additions and 0 deletions
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18
drivers/net/wireless/b43/phy_ht.c
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@ -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,