1 files changed, 87 insertions, 0 deletions
diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h
new file mode 100644
index 000000000..8f2237eb3
--- /dev/null
+++ b/include/linux/of_mdio.h
@@ -0,0 +1,87 @@
+/*
+ * OF helpers for the MDIO (Ethernet PHY) API
+ *
+ * Copyright (c) 2009 Secret Lab Technologies, Ltd.
+ *
+ * This file is released under the GPLv2
+ */
+
+#ifndef __LINUX_OF_MDIO_H
+#define __LINUX_OF_MDIO_H
+
+#include <linux/phy.h>
+#include <linux/of.h>
+
+#ifdef CONFIG_OF
+extern int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np);
+extern struct phy_device *of_phy_find_device(struct device_node *phy_np);
+extern 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_attach(struct net_device *dev,
+				 struct device_node *phy_np, u32 flags,
+				 phy_interface_t iface);
+
+extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
+extern int of_mdio_parse_addr(struct device *dev, const struct device_node *np);
+
+#else /* CONFIG_OF */
+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 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_attach(struct net_device *dev,
+					       struct device_node *phy_np,
+					       u32 flags, phy_interface_t iface)
+{
+	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;
+}
+#endif /* CONFIG_OF */
+
+#if defined(CONFIG_OF) && defined(CONFIG_FIXED_PHY)
+extern int of_phy_register_fixed_link(struct device_node *np);
+extern bool of_phy_is_fixed_link(struct device_node *np);
+#else
+static inline int of_phy_register_fixed_link(struct device_node *np)
+{
+	return -ENOSYS;
+}
+static inline bool of_phy_is_fixed_link(struct device_node *np)
+{
+	return false;
+}
+#endif
+
+
+#endif /* __LINUX_OF_MDIO_H */