include/linux/of_mdio.h

   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
  16 extern int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np);
  17 extern struct phy_device *of_phy_find_device(struct device_node *phy_np);
  18 extern 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);
  22 extern struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
  23                                          void (*hndlr)(struct net_device *),
  24                                          phy_interface_t iface);
  25
  26 extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
  27
  28 #else /* CONFIG_OF */
  29 static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
  30 {
  31         return -ENOSYS;
  32 }
  33
  34 static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
  35 {
  36         return NULL;
  37 }
  38
  39 static inline struct phy_device *of_phy_connect(struct net_device *dev,
  40                                                 struct device_node *phy_np,
  41                                                 void (*hndlr)(struct net_device *),
  42                                                 u32 flags, phy_interface_t iface)
  43 {
  44         return NULL;
  45 }
  46
  47 static inline struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
  48                                                            void (*hndlr)(struct net_device *),
  49                                                            phy_interface_t iface)
  50 {
  51         return NULL;
  52 }
  53
  54 static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
  55 {
  56         return NULL;
  57 }
  58 #endif /* CONFIG_OF */
  59
  60 #endif /* __LINUX_OF_MDIO_H */