[POWERPC] Cell fixup DMA offset for new southbridge

[karo-tx-linux.git] / arch / powerpc / platforms / cell / iommu.h

diff --git a/arch/powerpc/platforms/cell/iommu.h b/arch/powerpc/platforms/cell/iommu.h
index 490d77abfe852804c7309c6185cf25b4b2f304a2..2a9ab95604a935f4e5c61d60933417e49b12c093 100644 (file)
--- a/arch/powerpc/platforms/cell/iommu.h
+++ b/arch/powerpc/platforms/cell/iommu.h
@@ -53,9 +53,11 @@ enum {
        IOC_ST_ORIGIN     = 0x918,
        IOC_CONF          = 0x930,
 
-       /* The high bit needs to be set on every DMA address,
-          only 2GB are addressable */
-       CELL_DMA_VALID    = 0x80000000,
+       /* The high bit needs to be set on every DMA address when using
+        * a spider bridge and only 2GB are addressable with the current
+        * iommu code.
+        */
+       SPIDER_DMA_VALID  = 0x80000000,
        CELL_DMA_MASK     = 0x7fffffff,
 };