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gerrit-public.fairphone.software / kernel / msm-4.9 / b5f36d9e614135470da452f820f161c443d3c83c / . / include / linux / of_address.h
blob: 5f6ed6b182b8ef9c7e01930288330d324f7f57b1 [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
Rob Herringd0dfa162013-09-16 21:05:05 -0500[diff] [blame]37/* Translate a DMA address from device space to CPU space */
38extern u64 of_translate_dma_address(struct device_node *dev,
39 const __be32 *in_addr);
40
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]41#ifdef CONFIG_OF_ADDRESS
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]42extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
Stephen Warren5d61b162012-07-25 17:34:37 -0600[diff] [blame]43extern bool of_can_translate_address(struct device_node *dev);
Grant Likely1f5bef32010-06-08 07:48:09 -0600[diff] [blame]44extern int of_address_to_resource(struct device_node *dev, int index,
45 struct resource *r);
Grant Likely90e33f62011-07-05 23:42:28 -0600[diff] [blame]46extern struct device_node *of_find_matching_node_by_address(
47 struct device_node *from,
48 const struct of_device_id *matches,
49 u64 base_address);
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]50extern void __iomem *of_iomap(struct device_node *device, int index);
51
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]52/* Extract an address from a device, returns the region size and
53 * the address space flags too. The PCI version uses a BAR number
54 * instead of an absolute index
55 */
Kim Phillips47b1e682012-10-08 19:41:58 -0500[diff] [blame]56extern const __be32 *of_get_address(struct device_node *dev, int index,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]57 u64 *size, unsigned int *flags);
58
Rob Herring25ff7942013-09-07 14:07:11 -0500[diff] [blame]59extern unsigned long pci_address_to_pio(phys_addr_t addr);
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]60
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]61extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
62 struct device_node *node);
63extern struct of_pci_range *of_pci_range_parser_one(
64 struct of_pci_range_parser *parser,
65 struct of_pci_range *range);
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]66#else /* CONFIG_OF_ADDRESS */
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]67static inline struct device_node *of_find_matching_node_by_address(
68 struct device_node *from,
69 const struct of_device_id *matches,
70 u64 base_address)
71{
72 return NULL;
73}
Rob Herring4acf4b92013-09-16 21:03:24 -0500[diff] [blame]74
Kim Phillips47b1e682012-10-08 19:41:58 -0500[diff] [blame]75static inline const __be32 *of_get_address(struct device_node *dev, int index,
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]76 u64 *size, unsigned int *flags)
77{
78 return NULL;
79}
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]80
81static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
82 struct device_node *node)
83{
84 return -1;
85}
86
87static inline struct of_pci_range *of_pci_range_parser_one(
88 struct of_pci_range_parser *parser,
89 struct of_pci_range *range)
90{
91 return NULL;
92}
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]93#endif /* CONFIG_OF_ADDRESS */
94
Rob Herring4acf4b92013-09-16 21:03:24 -0500[diff] [blame]95#ifdef CONFIG_OF
96extern int of_address_to_resource(struct device_node *dev, int index,
97 struct resource *r);
98void __iomem *of_iomap(struct device_node *node, int index);
99#else
100static inline int of_address_to_resource(struct device_node *dev, int index,
101 struct resource *r)
102{
103 return -EINVAL;
104}
105
106static inline void __iomem *of_iomap(struct device_node *device, int index)
107{
108 return NULL;
109}
110#endif
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]111
112#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]113extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]114 u64 *size, unsigned int *flags);
115extern int of_pci_address_to_resource(struct device_node *dev, int bar,
116 struct resource *r);
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]117#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]118static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
119 struct resource *r)
120{
121 return -ENOSYS;
122}
123
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]124static inline const __be32 *of_get_pci_address(struct device_node *dev,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]125 int bar_no, u64 *size, unsigned int *flags)
126{
127 return NULL;
128}
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]129#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]130
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]131#endif /* __OF_ADDRESS_H */
132