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>

drivers/net/wireless/b43/dma.c

@@ -174,7 +174,7 @@ static void op64_fill_descriptor(struct b43_dmaring *ring,
 	addrhi = (((u64) dmaaddr >> 32) & ~SSB_DMA_TRANSLATION_MASK);
 	addrext = (((u64) dmaaddr >> 32) & SSB_DMA_TRANSLATION_MASK)
 	    >> SSB_DMA_TRANSLATION_SHIFT;
-	addrhi |= (ring->dev->dma.translation << 1);
+	addrhi |= ring->dev->dma.translation;
 	if (slot == ring->nr_slots - 1)
 		ctl0 |= B43_DMA64_DCTL0_DTABLEEND;
 	if (start)
@@ -678,7 +678,7 @@ static int dmacontroller_setup(struct b43_dmaring *ring)
 			b43_dma_write(ring, B43_DMA64_TXRINGHI,
 				      ((ringbase >> 32) &
 				       ~SSB_DMA_TRANSLATION_MASK)
-				      | (trans << 1));
+				      | trans);
 		} else {
 			u32 ringbase = (u32) (ring->dmabase);
 
@@ -715,7 +715,7 @@ static int dmacontroller_setup(struct b43_dmaring *ring)
 			b43_dma_write(ring, B43_DMA64_RXRINGHI,
 				      ((ringbase >> 32) &
 				       ~SSB_DMA_TRANSLATION_MASK)
-				      | (trans << 1));
+				      | trans);
 			b43_dma_write(ring, B43_DMA64_RXINDEX, ring->nr_slots *
 				      sizeof(struct b43_dmadesc64));
 		} else {

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);
 	}