b43: (b2062) Fix crystal frequency calculations

This fixes the crystal frequency calculations in the b2062 init code.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/b43/phy_lp.c b/drivers/net/wireless/b43/phy_lp.c
index fdd31d3..94d9e8b 100644 (file)
--- a/drivers/net/wireless/b43/phy_lp.c
+++ b/drivers/net/wireless/b43/phy_lp.c
@@ -160,6 +160,7 @@ struct b2062_freqdata {
 /* Initialize the 2062 radio. */
 static void lpphy_2062_init(struct b43_wldev *dev)
 {
+       struct ssb_bus *bus = dev->dev->bus;
        u32 crystalfreq, pdiv, tmp, ref;
        unsigned int i;
        const struct b2062_freqdata *fd = NULL;
@@ -193,7 +194,11 @@ static void lpphy_2062_init(struct b43_wldev *dev)
        else
                b43_radio_mask(dev, B2062_N_TSSI_CTL0, ~0x1);
 
-       crystalfreq = 0;//FIXME
+       /* Get the crystal freq, in Hz. */
+       crystalfreq = bus->chipco.pmu.crystalfreq * 1000;
+
+       B43_WARN_ON(!(bus->chipco.capabilities & SSB_CHIPCO_CAP_PMU));
+       B43_WARN_ON(crystalfreq == 0);
 
        if (crystalfreq >= 30000000) {
                pdiv = 1;
@@ -219,13 +224,15 @@ static void lpphy_2062_init(struct b43_wldev *dev)
                        break;
                }
        }
-       if (B43_WARN_ON(!fd))
-               return;
+       if (!fd)
+               fd = &freqdata_tab[ARRAY_SIZE(freqdata_tab) - 1];
+       b43dbg(dev->wl, "b2062: Using crystal tab entry %u kHz.\n",
+              fd->freq); /* FIXME: Keep this printk until the code is fully debugged. */
 
        b43_radio_write(dev, B2062_S_RFPLL_CTL8,
                        ((u16)(fd->data[1]) << 4) | fd->data[0]);
        b43_radio_write(dev, B2062_S_RFPLL_CTL9,
-                       ((u16)(fd->data[3]) << 4) | fd->data[2]);//FIXME specs are different
+                       ((u16)(fd->data[3]) << 4) | fd->data[2]);
        b43_radio_write(dev, B2062_S_RFPLL_CTL10, fd->data[4]);
        b43_radio_write(dev, B2062_S_RFPLL_CTL11, fd->data[5]);
 }