1 files changed, 8 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index adac9dc54aee..484b2d4462c1 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -53,9 +53,16 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 #else
         struct page *page;
         int node = dev_to_node(dev);
+#ifdef CONFIG_FSL_SOC
         u64 pfn = get_pfn_limit(dev);
         int zone;
 
+        /*
+         * This code should be OK on other platforms, but we have drivers that
+         * don't set coherent_dma_mask. As a workaround we just ifdef it. This
+         * whole routine needs some serious cleanup.
+         */
+
         zone = dma_pfn_limit_to_zone(pfn);
         if (zone < 0) {
                 dev_err(dev, "%s: No suitable zone for pfn %#llx\n",
@@ -73,6 +80,7 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size,
                 break;
 #endif
         };
+#endif /* CONFIG_FSL_SOC */
 
         /* ignore region specifiers */
         flag  &= ~(__GFP_HIGHMEM);