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