include/linux/of_address.h

   1 #ifndef __OF_ADDRESS_H
   2 #define __OF_ADDRESS_H
   3 #include <linux/ioport.h>
   4 #include <linux/of.h>
   5
   6 extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
   7 extern int of_address_to_resource(struct device_node *dev, int index,
   8                                   struct resource *r);
   9 extern void __iomem *of_iomap(struct device_node *device, int index);
  10
  11 /* Extract an address from a device, returns the region size and
  12  * the address space flags too. The PCI version uses a BAR number
  13  * instead of an absolute index
  14  */
  15 extern const u32 *of_get_address(struct device_node *dev, int index,
  16                            u64 *size, unsigned int *flags);
  17
  18 #ifndef pci_address_to_pio
  19 static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
  20 #define pci_address_to_pio pci_address_to_pio
  21 #endif
  22
  23 #ifdef CONFIG_PCI
  24 extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
  25                                u64 *size, unsigned int *flags);
  26 extern int of_pci_address_to_resource(struct device_node *dev, int bar,
  27                                       struct resource *r);
  28 #else /* CONFIG_PCI */
  29 static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
  30                                              struct resource *r)
  31 {
  32         return -ENOSYS;
  33 }
  34
  35 static inline const __be32 *of_get_pci_address(struct device_node *dev,
  36                 int bar_no, u64 *size, unsigned int *flags)
  37 {
  38         return NULL;
  39 }
  40 #endif /* CONFIG_PCI */
  41
  42
  43 #endif /* __OF_ADDRESS_H */
  44