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
7#ifdef CONFIG_OF_ADDRESS
8extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
9extern int of_address_to_resource(struct device_node *dev, int index,
10				  struct resource *r);
11extern struct device_node *of_find_matching_node_by_address(
12					struct device_node *from,
13					const struct of_device_id *matches,
14					u64 base_address);
15extern void __iomem *of_iomap(struct device_node *device, int index);
16
17/* Extract an address from a device, returns the region size and
18 * the address space flags too. The PCI version uses a BAR number
19 * instead of an absolute index
20 */
21extern const u32 *of_get_address(struct device_node *dev, int index,
22			   u64 *size, unsigned int *flags);
23
24#ifndef pci_address_to_pio
25static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
26#define pci_address_to_pio pci_address_to_pio
27#endif
28
29#else /* CONFIG_OF_ADDRESS */
30static inline int of_address_to_resource(struct device_node *dev, int index,
31					 struct resource *r)
32{
33	return -EINVAL;
34}
35static inline struct device_node *of_find_matching_node_by_address(
36					struct device_node *from,
37					const struct of_device_id *matches,
38					u64 base_address)
39{
40	return NULL;
41}
42static inline void __iomem *of_iomap(struct device_node *device, int index)
43{
44	return NULL;
45}
46static inline const u32 *of_get_address(struct device_node *dev, int index,
47					u64 *size, unsigned int *flags)
48{
49	return NULL;
50}
51#endif /* CONFIG_OF_ADDRESS */
52
53
54#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
55extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
56			       u64 *size, unsigned int *flags);
57extern int of_pci_address_to_resource(struct device_node *dev, int bar,
58				      struct resource *r);
59#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
60static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
61				             struct resource *r)
62{
63	return -ENOSYS;
64}
65
66static inline const __be32 *of_get_pci_address(struct device_node *dev,
67		int bar_no, u64 *size, unsigned int *flags)
68{
69	return NULL;
70}
71#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
72
73#endif /* __OF_ADDRESS_H */
74
75