1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h
new file mode 100644
index 0000000000..16e7568ef0
--- /dev/null
+++ b/arch/arc/include/asm/cache.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_CACHE_H
+#define __ASM_ARC_CACHE_H
+
+#include <config.h>
+
+/*
+ * The current upper bound for ARC L1 data cache line sizes is 128 bytes.
+ * We use that value for aligning DMA buffers unless the board config has
+ * specified an alternate cache line size.
+ */
+#ifdef CONFIG_SYS_CACHELINE_SIZE
+#define ARCH_DMA_MINALIGN	CONFIG_SYS_CACHELINE_SIZE
+#else
+#define ARCH_DMA_MINALIGN	128
+#endif
+
+#endif /* __ASM_ARC_CACHE_H */