b43: Enable PCI slow clock workaround, if needed.

Enable the PCI slow clock workaround, if we're running a PCI core rev <= 10.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 3ad3a6c447c0..ef514827a8d5 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4179,6 +4179,9 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
         }
         if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)
                 hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */
+        if ((bus->bustype == SSB_BUSTYPE_PCI) &&
+            (bus->pcicore.dev->id.revision <= 10))
+                hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */
         b43_hf_write(dev, hf);
 
         b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,