mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
138 lines
3.5 KiB
138 lines
3.5 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
|
/* |
|
* OF helpers for the MDIO (Ethernet PHY) API |
|
* |
|
* Copyright (c) 2009 Secret Lab Technologies, Ltd. |
|
*/ |
|
|
|
#ifndef __LINUX_OF_MDIO_H |
|
#define __LINUX_OF_MDIO_H |
|
|
|
#include <linux/device.h> |
|
#include <linux/phy.h> |
|
#include <linux/of.h> |
|
|
|
#if IS_ENABLED(CONFIG_OF_MDIO) |
|
bool of_mdiobus_child_is_phy(struct device_node *child); |
|
int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np); |
|
int devm_of_mdiobus_register(struct device *dev, struct mii_bus *mdio, |
|
struct device_node *np); |
|
struct mdio_device *of_mdio_find_device(struct device_node *np); |
|
struct phy_device *of_phy_find_device(struct device_node *phy_np); |
|
struct phy_device * |
|
of_phy_connect(struct net_device *dev, struct device_node *phy_np, |
|
void (*hndlr)(struct net_device *), u32 flags, |
|
phy_interface_t iface); |
|
struct phy_device * |
|
of_phy_get_and_connect(struct net_device *dev, struct device_node *np, |
|
void (*hndlr)(struct net_device *)); |
|
|
|
struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np); |
|
int of_phy_register_fixed_link(struct device_node *np); |
|
void of_phy_deregister_fixed_link(struct device_node *np); |
|
bool of_phy_is_fixed_link(struct device_node *np); |
|
int of_mdiobus_phy_device_register(struct mii_bus *mdio, struct phy_device *phy, |
|
struct device_node *child, u32 addr); |
|
|
|
static inline int of_mdio_parse_addr(struct device *dev, |
|
const struct device_node *np) |
|
{ |
|
u32 addr; |
|
int ret; |
|
|
|
ret = of_property_read_u32(np, "reg", &addr); |
|
if (ret < 0) { |
|
dev_err(dev, "%s has invalid PHY address\n", np->full_name); |
|
return ret; |
|
} |
|
|
|
/* A PHY must have a reg property in the range [0-31] */ |
|
if (addr >= PHY_MAX_ADDR) { |
|
dev_err(dev, "%s PHY address %i is too large\n", |
|
np->full_name, addr); |
|
return -EINVAL; |
|
} |
|
|
|
return addr; |
|
} |
|
|
|
#else /* CONFIG_OF_MDIO */ |
|
static inline bool of_mdiobus_child_is_phy(struct device_node *child) |
|
{ |
|
return false; |
|
} |
|
|
|
static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np) |
|
{ |
|
/* |
|
* Fall back to the non-DT function to register a bus. |
|
* This way, we don't have to keep compat bits around in drivers. |
|
*/ |
|
|
|
return mdiobus_register(mdio); |
|
} |
|
|
|
static inline int devm_of_mdiobus_register(struct device *dev, |
|
struct mii_bus *mdio, |
|
struct device_node *np) |
|
{ |
|
return devm_mdiobus_register(dev, mdio); |
|
} |
|
|
|
static inline struct mdio_device *of_mdio_find_device(struct device_node *np) |
|
{ |
|
return NULL; |
|
} |
|
|
|
static inline struct phy_device *of_phy_find_device(struct device_node *phy_np) |
|
{ |
|
return NULL; |
|
} |
|
|
|
static inline struct phy_device *of_phy_connect(struct net_device *dev, |
|
struct device_node *phy_np, |
|
void (*hndlr)(struct net_device *), |
|
u32 flags, phy_interface_t iface) |
|
{ |
|
return NULL; |
|
} |
|
|
|
static inline struct phy_device * |
|
of_phy_get_and_connect(struct net_device *dev, struct device_node *np, |
|
void (*hndlr)(struct net_device *)) |
|
{ |
|
return NULL; |
|
} |
|
|
|
static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np) |
|
{ |
|
return NULL; |
|
} |
|
|
|
static inline int of_mdio_parse_addr(struct device *dev, |
|
const struct device_node *np) |
|
{ |
|
return -ENOSYS; |
|
} |
|
static inline int of_phy_register_fixed_link(struct device_node *np) |
|
{ |
|
return -ENOSYS; |
|
} |
|
static inline void of_phy_deregister_fixed_link(struct device_node *np) |
|
{ |
|
} |
|
static inline bool of_phy_is_fixed_link(struct device_node *np) |
|
{ |
|
return false; |
|
} |
|
|
|
static inline int of_mdiobus_phy_device_register(struct mii_bus *mdio, |
|
struct phy_device *phy, |
|
struct device_node *child, u32 addr) |
|
{ |
|
return -ENOSYS; |
|
} |
|
#endif |
|
|
|
|
|
#endif /* __LINUX_OF_MDIO_H */
|
|
|