LXR linux/include/linux/of

   1#ifndef __OF_ADDRESS_H
   2#define __OF_ADDRESS_H
   3#include <linux/ioport.h>
   4#include <linux/errno.h>
   5#include <linux/of.h>
   6
   7extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
   8extern int of_address_to_resource(struct device_node *dev, int index,
   9                                  struct resource *r);
  10extern struct device_node *of_find_matching_node_by_address(
  11                                        struct device_node *from,
  12                                        const struct of_device_id *matches,
  13                                        u64 base_address);
  14extern void __iomem *of_iomap(struct device_node *device, int index);
  15
  16/* Extract an address from a device, returns the region size and
  17 * the address space flags too. The PCI version uses a BAR number
  18 * instead of an absolute index
  19 */
  20extern const u32 *of_get_address(struct device_node *dev, int index,
  21                           u64 *size, unsigned int *flags);
  22
  23#ifndef pci_address_to_pio
  24static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
  25#define pci_address_to_pio pci_address_to_pio
  26#endif
  27
  28#ifdef CONFIG_PCI
  29extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
  30                               u64 *size, unsigned int *flags);
  31extern int of_pci_address_to_resource(struct device_node *dev, int bar,
  32                                      struct resource *r);
  33#else /* CONFIG_PCI */
  34static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
  35                                             struct resource *r)
  36{
  37        return -ENOSYS;
  38}
  39
  40static inline const __be32 *of_get_pci_address(struct device_node *dev,
  41                int bar_no, u64 *size, unsigned int *flags)
  42{
  43        return NULL;
  44}
  45#endif /* CONFIG_PCI */
  46
  47
  48#endif /* __OF_ADDRESS_H */
  49
  50