ssb: return correct translation bit for 64-bit DMA

Remove b43's workarounds at the same time. Other users of
ssb_dma_translation do not support any 64-bit DMA devices, so they are
not affected.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 57b7b6460896..6ec6e099fe04 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -1266,7 +1266,10 @@ u32 ssb_dma_translation(struct ssb_device *dev)
         case SSB_BUSTYPE_SSB:
                 return 0;
         case SSB_BUSTYPE_PCI:
-                return SSB_PCI_DMA;
+                if (ssb_read32(dev, SSB_TMSHIGH) & SSB_TMSHIGH_DMA64)
+                        return SSB_PCIE_DMA_H32;
+                else
+                        return SSB_PCI_DMA;
         default:
                 __ssb_dma_not_implemented(dev);
         }