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gerrit-public.fairphone.software / kernel / msm-5.4 / 046f153343e33dcad1be7f6249ea6ff1c6fd9b58 / . / include / linux / of_address.h
blob: 906ca76817564ee5ed9fefca7ea1654c5ab79863 [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);
Grant Likely1f5bef32010-06-08 07:48:09 -0600[diff] [blame]43extern int of_address_to_resource(struct device_node *dev, int index,
44 struct resource *r);
Grant Likely90e33f62011-07-05 23:42:28 -0600[diff] [blame]45extern struct device_node *of_find_matching_node_by_address(
46 struct device_node *from,
47 const struct of_device_id *matches,
48 u64 base_address);
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]49extern void __iomem *of_iomap(struct device_node *device, int index);
50
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]51/* Extract an address from a device, returns the region size and
52 * the address space flags too. The PCI version uses a BAR number
53 * instead of an absolute index
54 */
Kim Phillips47b1e682012-10-08 19:41:58 -0500[diff] [blame]55extern const __be32 *of_get_address(struct device_node *dev, int index,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]56 u64 *size, unsigned int *flags);
57
Rob Herring25ff7942013-09-07 14:07:11 -0500[diff] [blame]58extern unsigned long pci_address_to_pio(phys_addr_t addr);
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]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 */
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]66static inline struct device_node *of_find_matching_node_by_address(
67 struct device_node *from,
68 const struct of_device_id *matches,
69 u64 base_address)
70{
71 return NULL;
72}
Rob Herring4acf4b92013-09-16 21:03:24 -0500[diff] [blame]73
Kim Phillips47b1e682012-10-08 19:41:58 -0500[diff] [blame]74static inline const __be32 *of_get_address(struct device_node *dev, int index,
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]75 u64 *size, unsigned int *flags)
76{
77 return NULL;
78}
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]79
80static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
81 struct device_node *node)
82{
83 return -1;
84}
85
86static inline struct of_pci_range *of_pci_range_parser_one(
87 struct of_pci_range_parser *parser,
88 struct of_pci_range *range)
89{
90 return NULL;
91}
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]92#endif /* CONFIG_OF_ADDRESS */
93
Rob Herring4acf4b92013-09-16 21:03:24 -0500[diff] [blame]94#ifdef CONFIG_OF
95extern int of_address_to_resource(struct device_node *dev, int index,
96 struct resource *r);
97void __iomem *of_iomap(struct device_node *node, int index);
98#else
99static inline int of_address_to_resource(struct device_node *dev, int index,
100 struct resource *r)
101{
102 return -EINVAL;
103}
104
105static inline void __iomem *of_iomap(struct device_node *device, int index)
106{
107 return NULL;
108}
109#endif
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]110
111#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]112extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]113 u64 *size, unsigned int *flags);
114extern int of_pci_address_to_resource(struct device_node *dev, int bar,
115 struct resource *r);
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]116#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]117static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
118 struct resource *r)
119{
120 return -ENOSYS;
121}
122
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]123static inline const __be32 *of_get_pci_address(struct device_node *dev,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]124 int bar_no, u64 *size, unsigned int *flags)
125{
126 return NULL;
127}
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]128#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]129
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]130#endif /* __OF_ADDRESS_H */
131