1 files changed, 44 insertions, 0 deletions

diff --git a/include/linux/of_address.h b/include/linux/of_address.h
new file mode 100644
index 000000000000..8aea06f0564c
--- /dev/null
+++ b/include/linux/of_address.h
@@ -0,0 +1,44 @@
+#ifndef __OF_ADDRESS_H
+#define __OF_ADDRESS_H
+#include <linux/ioport.h>
+#include <linux/of.h>
+
+extern u64 of_translate_address(struct device_node *np, const u32 *addr);
+extern int of_address_to_resource(struct device_node *dev, int index,
+                                  struct resource *r);
+extern void __iomem *of_iomap(struct device_node *device, int index);
+
+/* Extract an address from a device, returns the region size and
+ * the address space flags too. The PCI version uses a BAR number
+ * instead of an absolute index
+ */
+extern const u32 *of_get_address(struct device_node *dev, int index,
+                           u64 *size, unsigned int *flags);
+
+#ifndef pci_address_to_pio
+static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
+#define pci_address_to_pio pci_address_to_pio
+#endif
+
+#ifdef CONFIG_PCI
+extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
+                               u64 *size, unsigned int *flags);
+extern int of_pci_address_to_resource(struct device_node *dev, int bar,
+                                      struct resource *r);
+#else /* CONFIG_PCI */
+static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
+                                             struct resource *r)
+{
+        return -ENOSYS;
+}
+
+static inline const u32 *of_get_pci_address(struct device_node *dev,
+                int bar_no, u64 *size, unsigned int *flags)
+{
+        return NULL;
+}
+#endif /* CONFIG_PCI */
+
+
+#endif /* __OF_ADDRESS_H */
+