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