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gerrit-public.fairphone.software / kernel / msm-4.9 / a7301fcc123a82baa0b9451612fd512a8f073e5a / . / include / linux / of_address.h
blob: 4c2e6f26432cfe5b0260fecb0caa5a15601482e8 [file] [log] [blame]
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]1#ifndef __OF_ADDRESS_H
2#define __OF_ADDRESS_H
3#include <linux/ioport.h>
Grant Likely99ce39e2011-07-05 23:42:37 -0600[diff] [blame]4#include <linux/errno.h>
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]5#include <linux/of.h>
6
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]7struct of_pci_range_parser {
8 struct device_node *node;
9 const __be32 *range;
10 const __be32 *end;
11 int np;
12 int pna;
13};
14
15struct of_pci_range {
16 u32 pci_space;
17 u64 pci_addr;
18 u64 cpu_addr;
19 u64 size;
20 u32 flags;
21};
22
23#define for_each_of_pci_range(parser, range) \
24 for (; of_pci_range_parser_one(parser, range);)
25
26static inline void of_pci_range_to_resource(struct of_pci_range *range,
27 struct device_node *np,
28 struct resource *res)
29{
30 res->flags = range->flags;
31 res->start = range->cpu_addr;
32 res->end = range->cpu_addr + range->size - 1;
33 res->parent = res->child = res->sibling = NULL;
34 res->name = np->full_name;
35}
36
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]37#ifdef CONFIG_OF_ADDRESS
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]38extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
Stephen Warren5d61b162012-07-25 17:34:37 -0600[diff] [blame]39extern bool of_can_translate_address(struct device_node *dev);
Grant Likely1f5bef32010-06-08 07:48:09 -0600[diff] [blame]40extern int of_address_to_resource(struct device_node *dev, int index,
41 struct resource *r);
Grant Likely90e33f62011-07-05 23:42:28 -0600[diff] [blame]42extern struct device_node *of_find_matching_node_by_address(
43 struct device_node *from,
44 const struct of_device_id *matches,
45 u64 base_address);
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]46extern void __iomem *of_iomap(struct device_node *device, int index);
47
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]48/* Extract an address from a device, returns the region size and
49 * the address space flags too. The PCI version uses a BAR number
50 * instead of an absolute index
51 */
Kim Phillips47b1e682012-10-08 19:41:58 -0500[diff] [blame]52extern const __be32 *of_get_address(struct device_node *dev, int index,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]53 u64 *size, unsigned int *flags);
54
55#ifndef pci_address_to_pio
56static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
57#define pci_address_to_pio pci_address_to_pio
58#endif
59
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]60extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
61 struct device_node *node);
62extern struct of_pci_range *of_pci_range_parser_one(
63 struct of_pci_range_parser *parser,
64 struct of_pci_range *range);
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]65#else /* CONFIG_OF_ADDRESS */
Andreas Larsson0bce04b2012-11-06 00:12:03 +0000[diff] [blame]66#ifndef of_address_to_resource
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]67static inline int of_address_to_resource(struct device_node *dev, int index,
68 struct resource *r)
69{
70 return -EINVAL;
71}
Andreas Larsson0bce04b2012-11-06 00:12:03 +0000[diff] [blame]72#endif
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]73static inline struct device_node *of_find_matching_node_by_address(
74 struct device_node *from,
75 const struct of_device_id *matches,
76 u64 base_address)
77{
78 return NULL;
79}
Andreas Larsson0e622d32012-11-23 12:24:09 +0100[diff] [blame]80#ifndef of_iomap
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]81static inline void __iomem *of_iomap(struct device_node *device, int index)
82{
83 return NULL;
84}
Andreas Larsson0e622d32012-11-23 12:24:09 +0100[diff] [blame]85#endif
Kim Phillips47b1e682012-10-08 19:41:58 -0500[diff] [blame]86static inline const __be32 *of_get_address(struct device_node *dev, int index,
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]87 u64 *size, unsigned int *flags)
88{
89 return NULL;
90}
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]91
92static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
93 struct device_node *node)
94{
95 return -1;
96}
97
98static inline struct of_pci_range *of_pci_range_parser_one(
99 struct of_pci_range_parser *parser,
100 struct of_pci_range *range)
101{
102 return NULL;
103}
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]104#endif /* CONFIG_OF_ADDRESS */
105
106
107#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]108extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]109 u64 *size, unsigned int *flags);
110extern int of_pci_address_to_resource(struct device_node *dev, int bar,
111 struct resource *r);
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]112#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]113static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
114 struct resource *r)
115{
116 return -ENOSYS;
117}
118
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]119static inline const __be32 *of_get_pci_address(struct device_node *dev,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]120 int bar_no, u64 *size, unsigned int *flags)
121{
122 return NULL;
123}
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]124#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]125
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]126#endif /* __OF_ADDRESS_H */
127