1 files changed, 10 insertions, 0 deletions

diff --git a/arch/m68k/kernel/dma.c b/arch/m68k/kernel/dma.c
index c01b9b8f97bf..463572c4943f 100644
--- a/arch/m68k/kernel/dma.c
+++ b/arch/m68k/kernel/dma.c
@@ -9,6 +9,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
+#include <linux/platform_device.h>
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
@@ -165,3 +166,12 @@ const struct dma_map_ops m68k_dma_ops = {
         .sync_sg_for_device     = m68k_dma_sync_sg_for_device,
 };
 EXPORT_SYMBOL(m68k_dma_ops);
+
+void arch_setup_pdev_archdata(struct platform_device *pdev)
+{
+        if (pdev->dev.coherent_dma_mask == DMA_MASK_NONE &&
+            pdev->dev.dma_mask == NULL) {
+                pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+                pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+        }
+}