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path: root/drivers/net/phy/mdio-ofgpio.c
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Diffstat (limited to 'drivers/net/phy/mdio-ofgpio.c')
-rw-r--r--drivers/net/phy/mdio-ofgpio.c204
1 files changed, 0 insertions, 204 deletions
diff --git a/drivers/net/phy/mdio-ofgpio.c b/drivers/net/phy/mdio-ofgpio.c
deleted file mode 100644
index 2ff97754e57..00000000000
--- a/drivers/net/phy/mdio-ofgpio.c
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * OpenFirmware GPIO based MDIO bitbang driver.
- *
- * Copyright (c) 2008 CSE Semaphore Belgium.
- * by Laurent Pinchart <laurentp@cse-semaphore.com>
- *
- * Based on earlier work by
- *
- * Copyright (c) 2003 Intracom S.A.
- * by Pantelis Antoniou <panto@intracom.gr>
- *
- * 2005 (c) MontaVista Software, Inc.
- * Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/mdio-bitbang.h>
-#include <linux/of_gpio.h>
-#include <linux/of_platform.h>
-
-struct mdio_gpio_info {
- struct mdiobb_ctrl ctrl;
- int mdc, mdio;
-};
-
-static void mdio_dir(struct mdiobb_ctrl *ctrl, int dir)
-{
- struct mdio_gpio_info *bitbang =
- container_of(ctrl, struct mdio_gpio_info, ctrl);
-
- if (dir)
- gpio_direction_output(bitbang->mdio, 1);
- else
- gpio_direction_input(bitbang->mdio);
-}
-
-static int mdio_read(struct mdiobb_ctrl *ctrl)
-{
- struct mdio_gpio_info *bitbang =
- container_of(ctrl, struct mdio_gpio_info, ctrl);
-
- return gpio_get_value(bitbang->mdio);
-}
-
-static void mdio(struct mdiobb_ctrl *ctrl, int what)
-{
- struct mdio_gpio_info *bitbang =
- container_of(ctrl, struct mdio_gpio_info, ctrl);
-
- gpio_set_value(bitbang->mdio, what);
-}
-
-static void mdc(struct mdiobb_ctrl *ctrl, int what)
-{
- struct mdio_gpio_info *bitbang =
- container_of(ctrl, struct mdio_gpio_info, ctrl);
-
- gpio_set_value(bitbang->mdc, what);
-}
-
-static struct mdiobb_ops mdio_gpio_ops = {
- .owner = THIS_MODULE,
- .set_mdc = mdc,
- .set_mdio_dir = mdio_dir,
- .set_mdio_data = mdio,
- .get_mdio_data = mdio_read,
-};
-
-static int __devinit mdio_ofgpio_bitbang_init(struct mii_bus *bus,
- struct device_node *np)
-{
- struct mdio_gpio_info *bitbang = bus->priv;
-
- bitbang->mdc = of_get_gpio(np, 0);
- bitbang->mdio = of_get_gpio(np, 1);
-
- if (bitbang->mdc < 0 || bitbang->mdio < 0)
- return -ENODEV;
-
- snprintf(bus->id, MII_BUS_ID_SIZE, "%x", bitbang->mdc);
- return 0;
-}
-
-static void __devinit add_phy(struct mii_bus *bus, struct device_node *np)
-{
- const u32 *data;
- int len, id, irq;
-
- data = of_get_property(np, "reg", &len);
- if (!data || len != 4)
- return;
-
- id = *data;
- bus->phy_mask &= ~(1 << id);
-
- irq = of_irq_to_resource(np, 0, NULL);
- if (irq != NO_IRQ)
- bus->irq[id] = irq;
-}
-
-static int __devinit mdio_ofgpio_probe(struct of_device *ofdev,
- const struct of_device_id *match)
-{
- struct device_node *np = NULL;
- struct mii_bus *new_bus;
- struct mdio_gpio_info *bitbang;
- int ret = -ENOMEM;
- int i;
-
- bitbang = kzalloc(sizeof(struct mdio_gpio_info), GFP_KERNEL);
- if (!bitbang)
- goto out;
-
- bitbang->ctrl.ops = &mdio_gpio_ops;
-
- new_bus = alloc_mdio_bitbang(&bitbang->ctrl);
- if (!new_bus)
- goto out_free_bitbang;
-
- new_bus->name = "GPIO Bitbanged MII",
-
- ret = mdio_ofgpio_bitbang_init(new_bus, ofdev->node);
- if (ret)
- goto out_free_bus;
-
- new_bus->phy_mask = ~0;
- new_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
- if (!new_bus->irq)
- goto out_free_bus;
-
- for (i = 0; i < PHY_MAX_ADDR; i++)
- new_bus->irq[i] = -1;
-
- while ((np = of_get_next_child(ofdev->node, np)))
- if (!strcmp(np->type, "ethernet-phy"))
- add_phy(new_bus, np);
-
- new_bus->parent = &ofdev->dev;
- dev_set_drvdata(&ofdev->dev, new_bus);
-
- ret = mdiobus_register(new_bus);
- if (ret)
- goto out_free_irqs;
-
- return 0;
-
-out_free_irqs:
- dev_set_drvdata(&ofdev->dev, NULL);
- kfree(new_bus->irq);
-out_free_bus:
- free_mdio_bitbang(new_bus);
-out_free_bitbang:
- kfree(bitbang);
-out:
- return ret;
-}
-
-static int mdio_ofgpio_remove(struct of_device *ofdev)
-{
- struct mii_bus *bus = dev_get_drvdata(&ofdev->dev);
- struct mdio_gpio_info *bitbang = bus->priv;
-
- mdiobus_unregister(bus);
- kfree(bus->irq);
- free_mdio_bitbang(bus);
- dev_set_drvdata(&ofdev->dev, NULL);
- kfree(bitbang);
-
- return 0;
-}
-
-static struct of_device_id mdio_ofgpio_match[] = {
- {
- .compatible = "virtual,mdio-gpio",
- },
- {},
-};
-
-static struct of_platform_driver mdio_ofgpio_driver = {
- .name = "mdio-gpio",
- .match_table = mdio_ofgpio_match,
- .probe = mdio_ofgpio_probe,
- .remove = mdio_ofgpio_remove,
-};
-
-static int mdio_ofgpio_init(void)
-{
- return of_register_platform_driver(&mdio_ofgpio_driver);
-}
-
-static void mdio_ofgpio_exit(void)
-{
- of_unregister_platform_driver(&mdio_ofgpio_driver);
-}
-
-module_init(mdio_ofgpio_init);
-module_exit(mdio_ofgpio_exit);