b43: rewrite A PHY initialization

Rewrite and sync A PHY initialization with specs, thus allowing for further
work to be done on 802.11a support. Note that A PHY initialization involves
G PHYs as well.

Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Acked-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 4373ec9..979e822 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -2254,6 +2254,9 @@
 	b43_write16(dev, B43_MMIO_POWERUP_DELAY,
 		    dev->dev->bus->chipco.fast_pwrup_delay);
 
+	/* OFDM address caching. */
+	phy->ofdm_valid = 0;
+
 	err = 0;
 	b43dbg(dev->wl, "Chip initialized\n");
 out: