Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
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
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