1 files changed, 10 insertions, 0 deletions

diff --git a/arch/sh/drivers/pci/fixups-dreamcast.c b/arch/sh/drivers/pci/fixups-dreamcast.c
index 6f53f8200dc3..c44699301eeb 100644
--- a/arch/sh/drivers/pci/fixups-dreamcast.c
+++ b/arch/sh/drivers/pci/fixups-dreamcast.c
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/pci.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -40,6 +41,15 @@ static void __init gapspci_fixup_resources(struct pci_dev *dev)
                  */
                 dev->resource[1].start  = p->io_resource->start  + 0x100;
                 dev->resource[1].end    = dev->resource[1].start + 0x200 - 1;
+                /*
+                 * Redirect dma memory allocations to special memory window.
+                 */
+                BUG_ON(!dma_declare_coherent_memory(&dev->dev,
+                                                GAPSPCI_DMA_BASE,
+                                                GAPSPCI_DMA_BASE,
+                                                GAPSPCI_DMA_SIZE,
+                                                DMA_MEMORY_MAP |
+                                                DMA_MEMORY_EXCLUSIVE));
                 break;
         default:
                 printk("PCI: Failed resource fixup\n");