#define BITS_PER_LONG 32
#endif /* CONFIG_ARM64 */
-/* Dma addresses are 32-bits wide. */
-
+#ifdef CONFIG_PHYS_64BIT
+typedef unsigned long long dma_addr_t;
+typedef unsigned long long phys_addr_t;
+typedef unsigned long long phys_size_t;
+#else
+/* DMA addresses are 32-bits wide */
typedef u32 dma_addr_t;
-
typedef unsigned long phys_addr_t;
typedef unsigned long phys_size_t;
+#endif
#endif /* __KERNEL__ */