1 files changed, 8 insertions, 0 deletions

diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h
index afa5c3ea077c..2b3cf69b3ed9 100644
--- a/include/asm-arm/memory.h
+++ b/include/asm-arm/memory.h
@@ -234,6 +234,14 @@ static inline __deprecated void *bus_to_virt(unsigned long x)
 #define virt_to_dma(dev, addr)          (__arch_virt_to_dma(dev, addr))
 #endif
 
+/*
+ * Optional coherency support.  Currently used only by selected
+ * Intel XSC3-based systems.
+ */
+#ifndef arch_is_coherent
+#define arch_is_coherent()              0
+#endif
+
 #endif
 
 #include <asm-generic/memory_model.h>