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 * 23 of_phy_get_and_connect(struct net_device *dev, struct device_node *np, 24 void (*hndlr)(struct net_device *)); 25 struct phy_device *of_phy_attach(struct net_device *dev, 26 struct device_node *phy_np, u32 flags, 27 phy_interface_t iface); 28 29 extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np); 30 extern int of_mdio_parse_addr(struct device *dev, const struct device_node *np); 31 extern int of_phy_register_fixed_link(struct device_node *np); 32 extern bool of_phy_is_fixed_link(struct device_node *np); 33 34 #else /* CONFIG_OF */ 35 static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np) 36 { 37 /* 38 * Fall back to the non-DT function to register a bus. 39 * This way, we don't have to keep compat bits around in drivers. 40 */ 41 42 return mdiobus_register(mdio); 43 } 44 45 static inline struct phy_device *of_phy_find_device(struct device_node *phy_np) 46 { 47 return NULL; 48 } 49 50 static inline struct phy_device *of_phy_connect(struct net_device *dev, 51 struct device_node *phy_np, 52 void (*hndlr)(struct net_device *), 53 u32 flags, phy_interface_t iface) 54 { 55 return NULL; 56 } 57 58 static inline struct phy_device * 59 of_phy_get_and_connect(struct net_device *dev, struct device_node *np, 60 void (*hndlr)(struct net_device *)) 61 { 62 return NULL; 63 } 64 65 static inline struct phy_device *of_phy_attach(struct net_device *dev, 66 struct device_node *phy_np, 67 u32 flags, phy_interface_t iface) 68 { 69 return NULL; 70 } 71 72 static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np) 73 { 74 return NULL; 75 } 76 77 static inline int of_mdio_parse_addr(struct device *dev, 78 const struct device_node *np) 79 { 80 return -ENOSYS; 81 } 82 static inline int of_phy_register_fixed_link(struct device_node *np) 83 { 84 return -ENOSYS; 85 } 86 static inline bool of_phy_is_fixed_link(struct device_node *np) 87 { 88 return false; 89 } 90 #endif 91 92 93 #endif /* __LINUX_OF_MDIO_H */ 94