b43legacy: dma: cache translation (routing bits)

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 6 insertions, 3 deletions

diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index 23583be1ee0b..17a130d18dc9 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -532,6 +532,8 @@ struct b43legacy_dma {
 
         struct b43legacy_dmaring *rx_ring0;
         struct b43legacy_dmaring *rx_ring3; /* only on core.rev < 5 */
+
+        u32 translation; /* Routing bits */
 };
 
 /* Data structures for PIO transmission, per 80211 core. */
diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c
index c33934ad6cd2..704ee62101bd 100644
--- a/drivers/net/wireless/b43legacy/dma.c
+++ b/drivers/net/wireless/b43legacy/dma.c
@@ -73,7 +73,7 @@ static void op32_fill_descriptor(struct b43legacy_dmaring *ring,
         addr = (u32)(dmaaddr & ~SSB_DMA_TRANSLATION_MASK);
         addrext = (u32)(dmaaddr & SSB_DMA_TRANSLATION_MASK)
                    >> SSB_DMA_TRANSLATION_SHIFT;
-        addr |= ssb_dma_translation(ring->dev->dev);
+        addr |= ring->dev->dma.translation;
         ctl = (bufsize - ring->frameoffset)
               & B43legacy_DMA32_DCTL_BYTECNT;
         if (slot == ring->nr_slots - 1)
@@ -175,7 +175,7 @@ static void op64_fill_descriptor(struct b43legacy_dmaring *ring,
         addrhi = (((u64)dmaaddr >> 32) & ~SSB_DMA_TRANSLATION_MASK);
         addrext = (((u64)dmaaddr >> 32) & SSB_DMA_TRANSLATION_MASK)
                   >> SSB_DMA_TRANSLATION_SHIFT;
-        addrhi |= ssb_dma_translation(ring->dev->dev);
+        addrhi |= ring->dev->dma.translation;
         if (slot == ring->nr_slots - 1)
                 ctl0 |= B43legacy_DMA64_DCTL0_DTABLEEND;
         if (start)
@@ -709,7 +709,7 @@ static int dmacontroller_setup(struct b43legacy_dmaring *ring)
         int err = 0;
         u32 value;
         u32 addrext;
-        u32 trans = ssb_dma_translation(ring->dev->dev);
+        u32 trans = ring->dev->dma.translation;
 
         if (ring->tx) {
                 if (ring->type == B43legacy_DMA_64BIT) {
@@ -1093,6 +1093,7 @@ int b43legacy_dma_init(struct b43legacy_wldev *dev)
                 return -EOPNOTSUPP;
 #endif
         }
+        dma->translation = ssb_dma_translation(dev->dev);
 
         err = -ENOMEM;
         /* setup TX DMA channels. */