-
-
-static int __devinit fs_enet_mdio_probe(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct fs_mii_bb_platform_info *pdata;
- struct mii_bus *new_bus;
- struct bb_info *bitbang;
- int err = 0;
-
- if (NULL == dev)
- return -EINVAL;
-
- new_bus = kzalloc(sizeof(struct mii_bus), GFP_KERNEL);
-
- if (NULL == new_bus)
- return -ENOMEM;
-
- bitbang = kzalloc(sizeof(struct bb_info), GFP_KERNEL);
-
- if (NULL == bitbang)
- return -ENOMEM;
-
- new_bus->name = "BB MII Bus",
- new_bus->read = &fs_enet_mii_bb_read,
- new_bus->write = &fs_enet_mii_bb_write,
- new_bus->reset = &fs_enet_mii_bb_reset,
- new_bus->id = pdev->id;
-
- new_bus->phy_mask = ~0x9;
- pdata = (struct fs_mii_bb_platform_info *)pdev->dev.platform_data;
-
- if (NULL == pdata) {
- printk(KERN_ERR "gfar mdio %d: Missing platform data!\n", pdev->id);
- return -ENODEV;
- }
-
- /*set up workspace*/
- fs_mii_bitbang_init(bitbang, pdata);
-
- new_bus->priv = bitbang;
-
- new_bus->irq = pdata->irq;
-
- new_bus->dev = dev;
- dev_set_drvdata(dev, new_bus);
-
- err = mdiobus_register(new_bus);
-
- if (0 != err) {
- printk (KERN_ERR "%s: Cannot register as MDIO bus\n",
- new_bus->name);
- goto bus_register_fail;
- }
-
- return 0;
-
-bus_register_fail:
- kfree(bitbang);
- kfree(new_bus);
-
- return err;
-}
-
-
-static int fs_enet_mdio_remove(struct device *dev)
-{
- struct mii_bus *bus = dev_get_drvdata(dev);
-
- mdiobus_unregister(bus);
-
- dev_set_drvdata(dev, NULL);
-
- iounmap((void *) (&bus->priv));
- bus->priv = NULL;
- kfree(bus);
-
- return 0;
-}
-
-static struct device_driver fs_enet_bb_mdio_driver = {
- .name = "fsl-bb-mdio",
- .bus = &platform_bus_type,
- .probe = fs_enet_mdio_probe,
- .remove = fs_enet_mdio_remove,
-};
-
-int fs_enet_mdio_bb_init(void)
-{
- return driver_register(&fs_enet_bb_mdio_driver);
-}
-
-void fs_enet_mdio_bb_exit(void)
-{
- driver_unregister(&fs_enet_bb_mdio_driver);
-}
-