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gerrit-public.fairphone.software / kernel / msm-5.4 / a060c2104ef83e62346b7e893947a940471c0d7c / . / include / linux / of_address.h
blob: 8beed2de98e9deebc1f8ed99c694a5f581585846 [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>
Sudip Mukherjeefcd71d9cc2015-12-08 14:17:55 +0530[diff] [blame]6#include <linux/io.h>
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]7
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]8struct of_pci_range_parser {
9 struct device_node *node;
10 const __be32 *range;
11 const __be32 *end;
12 int np;
13 int pna;
14};
15
16struct of_pci_range {
17 u32 pci_space;
18 u64 pci_addr;
19 u64 cpu_addr;
20 u64 size;
21 u32 flags;
22};
23
24#define for_each_of_pci_range(parser, range) \
25 for (; of_pci_range_parser_one(parser, range);)
26
Rob Herringd0dfa162013-09-16 21:05:05 -0500[diff] [blame]27/* Translate a DMA address from device space to CPU space */
28extern u64 of_translate_dma_address(struct device_node *dev,
29 const __be32 *in_addr);
30
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]31#ifdef CONFIG_OF_ADDRESS
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]32extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
Grant Likely1f5bef32010-06-08 07:48:09 -0600[diff] [blame]33extern int of_address_to_resource(struct device_node *dev, int index,
34 struct resource *r);
Grant Likely90e33f62011-07-05 23:42:28 -0600[diff] [blame]35extern struct device_node *of_find_matching_node_by_address(
36 struct device_node *from,
37 const struct of_device_id *matches,
38 u64 base_address);
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]39extern void __iomem *of_iomap(struct device_node *device, int index);
Sudip Mukherjeefcd71d9cc2015-12-08 14:17:55 +0530[diff] [blame]40void __iomem *of_io_request_and_map(struct device_node *device,
41 int index, const char *name);
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]42
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]43/* Extract an address from a device, returns the region size and
44 * the address space flags too. The PCI version uses a BAR number
45 * instead of an absolute index
46 */
Kim Phillips47b1e682012-10-08 19:41:58 -0500[diff] [blame]47extern const __be32 *of_get_address(struct device_node *dev, int index,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]48 u64 *size, unsigned int *flags);
49
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]50extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
51 struct device_node *node);
Marc Gonzaleza060c212017-09-26 12:22:54 +0200[diff] [blame^]52extern int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
53 struct device_node *node);
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]54extern struct of_pci_range *of_pci_range_parser_one(
55 struct of_pci_range_parser *parser,
56 struct of_pci_range *range);
Grygorii Strashko18308c92014-04-24 11:30:02 -0400[diff] [blame]57extern int of_dma_get_range(struct device_node *np, u64 *dma_addr,
58 u64 *paddr, u64 *size);
Santosh Shilimkar92ea6372014-04-24 11:30:03 -0400[diff] [blame]59extern bool of_dma_is_coherent(struct device_node *np);
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]60#else /* CONFIG_OF_ADDRESS */
Sudip Mukherjeefcd71d9cc2015-12-08 14:17:55 +0530[diff] [blame]61static inline void __iomem *of_io_request_and_map(struct device_node *device,
62 int index, const char *name)
63{
64 return IOMEM_ERR_PTR(-EINVAL);
65}
Guenter Roeckb1d06b62015-11-06 19:28:22 -0800[diff] [blame]66
67static inline u64 of_translate_address(struct device_node *np,
68 const __be32 *addr)
69{
70 return OF_BAD_ADDR;
71}
72
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}
Rob Herring4acf4b92013-09-16 21:03:24 -0500[diff] [blame]80
Kim Phillips47b1e682012-10-08 19:41:58 -0500[diff] [blame]81static inline const __be32 *of_get_address(struct device_node *dev, int index,
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]82 u64 *size, unsigned int *flags)
83{
84 return NULL;
85}
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]86
87static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
88 struct device_node *node)
89{
Marc Gonzaleza060c212017-09-26 12:22:54 +0200[diff] [blame^]90 return -ENOSYS;
91}
92
93static inline int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
94 struct device_node *node)
95{
96 return -ENOSYS;
Andrew Murray29b635c2013-05-16 17:55:17 +0200[diff] [blame]97}
98
99static inline struct of_pci_range *of_pci_range_parser_one(
100 struct of_pci_range_parser *parser,
101 struct of_pci_range *range)
102{
103 return NULL;
104}
Grygorii Strashko18308c92014-04-24 11:30:02 -0400[diff] [blame]105
106static inline int of_dma_get_range(struct device_node *np, u64 *dma_addr,
107 u64 *paddr, u64 *size)
108{
109 return -ENODEV;
110}
Santosh Shilimkar92ea6372014-04-24 11:30:03 -0400[diff] [blame]111
112static inline bool of_dma_is_coherent(struct device_node *np)
113{
114 return false;
115}
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]116#endif /* CONFIG_OF_ADDRESS */
117
Rob Herring4acf4b92013-09-16 21:03:24 -0500[diff] [blame]118#ifdef CONFIG_OF
119extern int of_address_to_resource(struct device_node *dev, int index,
120 struct resource *r);
121void __iomem *of_iomap(struct device_node *node, int index);
122#else
123static inline int of_address_to_resource(struct device_node *dev, int index,
124 struct resource *r)
125{
126 return -EINVAL;
127}
128
129static inline void __iomem *of_iomap(struct device_node *device, int index)
130{
131 return NULL;
132}
133#endif
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]134
135#if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]136extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]137 u64 *size, unsigned int *flags);
138extern int of_pci_address_to_resource(struct device_node *dev, int bar,
139 struct resource *r);
Liviu Dudau0b0b0892014-09-29 15:29:25 +0100[diff] [blame]140extern int of_pci_range_to_resource(struct of_pci_range *range,
141 struct device_node *np,
142 struct resource *res);
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]143#else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]144static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
145 struct resource *r)
146{
147 return -ENOSYS;
148}
149
Sebastian Andrzej Siewior0131d892010-12-01 10:54:46 +0100[diff] [blame]150static inline const __be32 *of_get_pci_address(struct device_node *dev,
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]151 int bar_no, u64 *size, unsigned int *flags)
152{
153 return NULL;
154}
Liviu Dudau0b0b0892014-09-29 15:29:25 +0100[diff] [blame]155static inline int of_pci_range_to_resource(struct of_pci_range *range,
156 struct device_node *np,
157 struct resource *res)
Liviu Dudau83bbde12014-09-29 15:29:24 +0100[diff] [blame]158{
159 return -ENOSYS;
160}
Grant Likelya850a752012-02-14 14:06:55 -0700[diff] [blame]161#endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
Grant Likely22ae7822010-07-29 11:49:01 -0600[diff] [blame]162
Grant Likely6b884a82010-06-08 07:48:09 -0600[diff] [blame]163#endif /* __OF_ADDRESS_H */
164