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 struct phy_device *of_phy_attach(struct net_device *dev,
  23                                  struct device_node *phy_np, u32 flags,
  24                                  phy_interface_t iface);
  25 extern struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
  26                                          void (*hndlr)(struct net_device *),
  27                                          phy_interface_t iface);
  28
  29 extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
  30
  31 #else /* CONFIG_OF */
  32 static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
  33 {
  34         return -ENOSYS;
  35 }
  36
  37 static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
  38 {
  39         return NULL;
  40 }
  41
  42 static inline struct phy_device *of_phy_connect(struct net_device *dev,
  43                                                 struct device_node *phy_np,
  44                                                 void (*hndlr)(struct net_device *),
  45                                                 u32 flags, phy_interface_t iface)
  46 {
  47         return NULL;
  48 }
  49
  50 static inline struct phy_device *of_phy_attach(struct net_device *dev,
  51                                                struct device_node *phy_np,
  52                                                u32 flags, phy_interface_t iface)
  53 {
  54         return NULL;
  55 }
  56
  57 static inline struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
  58                                                            void (*hndlr)(struct net_device *),
  59                                                            phy_interface_t iface)
  60 {
  61         return NULL;
  62 }
  63
  64 static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
  65 {
  66         return NULL;
  67 }
  68 #endif /* CONFIG_OF */
  69
  70 #endif /* __LINUX_OF_MDIO_H */