Merge branch 'for-next/phylib'

Conflicts:
	drivers/net/phy/phy.c

1 files changed, 128 insertions, 2 deletions

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 62ff2d9d13..ed185e1471 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -19,6 +19,7 @@
 
 #include <common.h>
 #include <driver.h>
+#include <init.h>
 #include <net.h>
 #include <malloc.h>
 #include <linux/phy.h>
@@ -27,6 +28,7 @@
 
 #define PHY_AN_TIMEOUT	10
 
+static struct phy_driver genphy_driver;
 static int genphy_config_init(struct phy_device *phydev);
 
 int phy_update_status(struct phy_device *dev)
@@ -53,6 +55,87 @@ int phy_update_status(struct phy_device *dev)
 	return 0;
 }
 
+static LIST_HEAD(phy_fixup_list);
+
+/*
+ * Creates a new phy_fixup and adds it to the list
+ * @bus_id: A string which matches phydev->dev.bus_id (or PHY_ANY_ID)
+ * @phy_uid: Used to match against phydev->phy_id (the UID of the PHY)
+ * 	It can also be PHY_ANY_UID
+ * @phy_uid_mask: Applied to phydev->phy_id and fixup->phy_uid before
+ * 	comparison
+ * @run: The actual code to be run when a matching PHY is found
+ */
+int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
+		int (*run)(struct phy_device *))
+{
+	struct phy_fixup *fixup;
+
+	fixup = kzalloc(sizeof(struct phy_fixup), GFP_KERNEL);
+	if (!fixup)
+		return -ENOMEM;
+
+	strlcpy(fixup->bus_id, bus_id, sizeof(fixup->bus_id));
+	fixup->phy_uid = phy_uid;
+	fixup->phy_uid_mask = phy_uid_mask;
+	fixup->run = run;
+
+	list_add_tail(&fixup->list, &phy_fixup_list);
+
+	return 0;
+}
+
+/* Registers a fixup to be run on any PHY with the UID in phy_uid */
+int phy_register_fixup_for_uid(u32 phy_uid, u32 phy_uid_mask,
+		int (*run)(struct phy_device *))
+{
+	return phy_register_fixup(PHY_ANY_ID, phy_uid, phy_uid_mask, run);
+}
+
+/* Registers a fixup to be run on the PHY with id string bus_id */
+int phy_register_fixup_for_id(const char *bus_id,
+		int (*run)(struct phy_device *))
+{
+	return phy_register_fixup(bus_id, PHY_ANY_UID, 0xffffffff, run);
+}
+
+/*
+ * Returns 1 if fixup matches phydev in bus_id and phy_uid.
+ * Fixups can be set to match any in one or more fields.
+ */
+static int phy_needs_fixup(struct phy_device *phydev, struct phy_fixup *fixup)
+{
+	if (strcmp(fixup->bus_id, dev_name(&phydev->dev)) != 0)
+		if (strcmp(fixup->bus_id, PHY_ANY_ID) != 0)
+			return 0;
+
+	if ((fixup->phy_uid & fixup->phy_uid_mask) !=
+			(phydev->phy_id & fixup->phy_uid_mask))
+		if (fixup->phy_uid != PHY_ANY_UID)
+			return 0;
+
+	return 1;
+}
+/* Runs any matching fixups for this phydev */
+int phy_scan_fixups(struct phy_device *phydev)
+{
+	struct phy_fixup *fixup;
+
+	list_for_each_entry(fixup, &phy_fixup_list, list) {
+		if (phy_needs_fixup(phydev, fixup)) {
+			int err;
+
+			err = fixup->run(phydev);
+
+			if (err < 0) {
+				return err;
+			}
+		}
+	}
+
+	return 0;
+}
+
 static struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id)
 {
 	struct phy_device *dev;
@@ -142,6 +225,21 @@ struct phy_device *get_phy_device(struct mii_bus *bus, int addr)
 	return dev;
 }
 
+static int phy_register_device(struct phy_device* dev)
+{
+	int ret;
+
+	ret = register_device(&dev->dev);
+	if (ret)
+		return ret;
+
+	if (dev->dev.driver)
+		return 0;
+
+	dev->dev.driver = &genphy_driver.drv;
+	return device_probe(&dev->dev);
+}
+
 /* Automatically gets and returns the PHY device */
 int phy_device_connect(struct eth_device *edev, struct mii_bus *bus, int addr,
 		       void (*adjust_link) (struct eth_device *edev),
@@ -164,7 +262,7 @@ int phy_device_connect(struct eth_device *edev, struct mii_bus *bus, int addr,
 			dev->interface = interface;
 			dev->dev_flags = flags;
 
-			ret = register_device(&dev->dev);
+			ret = phy_register_device(dev);
 			if (ret)
 				goto fail;
 		} else {
@@ -181,7 +279,7 @@ int phy_device_connect(struct eth_device *edev, struct mii_bus *bus, int addr,
 				dev->interface = interface;
 				dev->dev_flags = flags;
 
-				ret = register_device(&dev->dev);
+				ret = phy_register_device(dev);
 				if (ret)
 					goto fail;
 
@@ -597,3 +695,31 @@ int phy_drivers_register(struct phy_driver *new_driver, int n)
 	}
 	return ret;
 }
+
+int phy_init_hw(struct phy_device *phydev)
+{
+	struct phy_driver *phydrv = to_phy_driver(phydev->dev.driver);
+	int ret;
+
+	if (!phydrv || !phydrv->config_init)
+		return 0;
+
+	ret = phy_scan_fixups(phydev);
+	if (ret < 0)
+		return ret;
+
+	return phydrv->config_init(phydev);
+}
+
+static struct phy_driver genphy_driver = {
+	.drv.name = "Generic PHY",
+	.phy_id = PHY_ANY_UID,
+	.phy_id_mask = PHY_ANY_UID,
+	.features = 0,
+};
+
+static int generic_phy_register(void)
+{
+	return phy_driver_register(&genphy_driver);
+}
+device_initcall(generic_phy_register);