Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * OF helpers for the MDIO (Ethernet PHY) API
3 *
4 * Copyright (c) 2009 Secret Lab Technologies, Ltd.
5 *
6 * This file is released under the GPLv2
7 */
8
9#ifndef __LINUX_OF_MDIO_H
10#define __LINUX_OF_MDIO_H
11
12#include <linux/phy.h>
13#include <linux/of.h>
14
15#ifdef CONFIG_OF
16extern int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np);
17extern struct phy_device *of_phy_find_device(struct device_node *phy_np);
18extern struct phy_device *of_phy_connect(struct net_device *dev,
19 struct device_node *phy_np,
20 void (*hndlr)(struct net_device *),
21 u32 flags, phy_interface_t iface);
22struct phy_device *of_phy_attach(struct net_device *dev,
23 struct device_node *phy_np, u32 flags,
24 phy_interface_t iface);
25
26extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
27
28#else /* CONFIG_OF */
29static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
30{
31 /*
32 * Fall back to the non-DT function to register a bus.
33 * This way, we don't have to keep compat bits around in drivers.
34 */
35
36 return mdiobus_register(mdio);
37}
38
39static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
40{
41 return NULL;
42}
43
44static inline struct phy_device *of_phy_connect(struct net_device *dev,
45 struct device_node *phy_np,
46 void (*hndlr)(struct net_device *),
47 u32 flags, phy_interface_t iface)
48{
49 return NULL;
50}
51
52static inline struct phy_device *of_phy_attach(struct net_device *dev,
53 struct device_node *phy_np,
54 u32 flags, phy_interface_t iface)
55{
56 return NULL;
57}
58
59static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
60{
61 return NULL;
62}
63#endif /* CONFIG_OF */
64
65#if defined(CONFIG_OF) && defined(CONFIG_FIXED_PHY)
66extern int of_phy_register_fixed_link(struct device_node *np);
67extern bool of_phy_is_fixed_link(struct device_node *np);
68#else
69static inline int of_phy_register_fixed_link(struct device_node *np)
70{
71 return -ENOSYS;
72}
73static inline bool of_phy_is_fixed_link(struct device_node *np)
74{
75 return false;
76}
77#endif
78
79
80#endif /* __LINUX_OF_MDIO_H */