B43_NPHY_REV7_RF_CTL_OVER4
lpf_bw4 = b43_phy_read(dev, B43_NPHY_REV7_RF_CTL_OVER4) & 0x80;
B43_NPHY_REV7_RF_CTL_OVER3, B43_NPHY_REV7_RF_CTL_OVER4,
b43_phy_write(dev, B43_NPHY_REV7_RF_CTL_OVER4, 0);
B43_NPHY_REV7_RF_CTL_OVER3, B43_NPHY_REV7_RF_CTL_OVER4,
b43_phy_write(dev, B43_NPHY_REV7_RF_CTL_OVER4, 0x07ff);