diff options
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/b43/phy_n.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index c16c985..c9d2b77 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -343,18 +343,34 @@ static void b43_nphy_workarounds(struct b43_wldev *dev) b43_phy_write(dev, B43_NPHY_PHASETR_B2, 0x20); } +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/BmacPhyClkFgc */ +static void b43_nphy_bmac_clock_fgc(struct b43_wldev *dev, bool force) +{ + u32 tmslow; + + if (dev->phy.type != B43_PHYTYPE_N) + return; + + tmslow = ssb_read32(dev->dev, SSB_TMSLOW); + if (force) + tmslow |= SSB_TMSLOW_FGC; + else + tmslow &= ~SSB_TMSLOW_FGC; + ssb_write32(dev->dev, SSB_TMSLOW, tmslow); +} + +/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/CCA */ static void b43_nphy_reset_cca(struct b43_wldev *dev) { u16 bbcfg; - ssb_write32(dev->dev, SSB_TMSLOW, - ssb_read32(dev->dev, SSB_TMSLOW) | SSB_TMSLOW_FGC); + b43_nphy_bmac_clock_fgc(dev, 1); bbcfg = b43_phy_read(dev, B43_NPHY_BBCFG); - b43_phy_set(dev, B43_NPHY_BBCFG, B43_NPHY_BBCFG_RSTCCA); - b43_phy_write(dev, B43_NPHY_BBCFG, - bbcfg & ~B43_NPHY_BBCFG_RSTCCA); - ssb_write32(dev->dev, SSB_TMSLOW, - ssb_read32(dev->dev, SSB_TMSLOW) & ~SSB_TMSLOW_FGC); + b43_phy_write(dev, B43_NPHY_BBCFG, bbcfg | B43_NPHY_BBCFG_RSTCCA); + udelay(1); + b43_phy_write(dev, B43_NPHY_BBCFG, bbcfg & ~B43_NPHY_BBCFG_RSTCCA); + b43_nphy_bmac_clock_fgc(dev, 0); + /* TODO: N PHY Force RF Seq with argument 2 */ } enum b43_nphy_rf_sequence { |