net: mdio: Move MDIO drivers into a new subdirectory

Move all the MDIO drivers and multiplexers into drivers/net/mdio.  The
mdio core is however left in the phy directory, due to mutual
dependencies between the MDIO core and the PHY core.

Take this opportunity to sort the Kconfig based on the menuconfig
strings, and move the multiplexers to the end with a separating
comment.

v2:
Fix typo in commit message

Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 152 deletions

diff --git a/drivers/net/phy/mdio-hisi-femac.c b/drivers/net/phy/mdio-hisi-femac.c
deleted file mode 100644
index f231c2fbb1de..000000000000
--- a/drivers/net/phy/mdio-hisi-femac.c
+++ /dev/null
@@ -1,152 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Hisilicon Fast Ethernet MDIO Bus Driver
- *
- * Copyright (c) 2016 HiSilicon Technologies Co., Ltd.
- */
-
-#include <linux/clk.h>
-#include <linux/iopoll.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/of_address.h>
-#include <linux/of_mdio.h>
-#include <linux/platform_device.h>
-
-#define MDIO_RWCTRL		0x00
-#define MDIO_RO_DATA		0x04
-#define MDIO_WRITE		BIT(13)
-#define MDIO_RW_FINISH		BIT(15)
-#define BIT_PHY_ADDR_OFFSET	8
-#define BIT_WR_DATA_OFFSET	16
-
-struct hisi_femac_mdio_data {
-	struct clk *clk;
-	void __iomem *membase;
-};
-
-static int hisi_femac_mdio_wait_ready(struct hisi_femac_mdio_data *data)
-{
-	u32 val;
-
-	return readl_poll_timeout(data->membase + MDIO_RWCTRL,
-				  val, val & MDIO_RW_FINISH, 20, 10000);
-}
-
-static int hisi_femac_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
-{
-	struct hisi_femac_mdio_data *data = bus->priv;
-	int ret;
-
-	ret = hisi_femac_mdio_wait_ready(data);
-	if (ret)
-		return ret;
-
-	writel((mii_id << BIT_PHY_ADDR_OFFSET) | regnum,
-	       data->membase + MDIO_RWCTRL);
-
-	ret = hisi_femac_mdio_wait_ready(data);
-	if (ret)
-		return ret;
-
-	return readl(data->membase + MDIO_RO_DATA) & 0xFFFF;
-}
-
-static int hisi_femac_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
-				 u16 value)
-{
-	struct hisi_femac_mdio_data *data = bus->priv;
-	int ret;
-
-	ret = hisi_femac_mdio_wait_ready(data);
-	if (ret)
-		return ret;
-
-	writel(MDIO_WRITE | (value << BIT_WR_DATA_OFFSET) |
-	       (mii_id << BIT_PHY_ADDR_OFFSET) | regnum,
-	       data->membase + MDIO_RWCTRL);
-
-	return hisi_femac_mdio_wait_ready(data);
-}
-
-static int hisi_femac_mdio_probe(struct platform_device *pdev)
-{
-	struct device_node *np = pdev->dev.of_node;
-	struct mii_bus *bus;
-	struct hisi_femac_mdio_data *data;
-	int ret;
-
-	bus = mdiobus_alloc_size(sizeof(*data));
-	if (!bus)
-		return -ENOMEM;
-
-	bus->name = "hisi_femac_mii_bus";
-	bus->read = &hisi_femac_mdio_read;
-	bus->write = &hisi_femac_mdio_write;
-	snprintf(bus->id, MII_BUS_ID_SIZE, "%s", pdev->name);
-	bus->parent = &pdev->dev;
-
-	data = bus->priv;
-	data->membase = devm_platform_ioremap_resource(pdev, 0);
-	if (IS_ERR(data->membase)) {
-		ret = PTR_ERR(data->membase);
-		goto err_out_free_mdiobus;
-	}
-
-	data->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(data->clk)) {
-		ret = PTR_ERR(data->clk);
-		goto err_out_free_mdiobus;
-	}
-
-	ret = clk_prepare_enable(data->clk);
-	if (ret)
-		goto err_out_free_mdiobus;
-
-	ret = of_mdiobus_register(bus, np);
-	if (ret)
-		goto err_out_disable_clk;
-
-	platform_set_drvdata(pdev, bus);
-
-	return 0;
-
-err_out_disable_clk:
-	clk_disable_unprepare(data->clk);
-err_out_free_mdiobus:
-	mdiobus_free(bus);
-	return ret;
-}
-
-static int hisi_femac_mdio_remove(struct platform_device *pdev)
-{
-	struct mii_bus *bus = platform_get_drvdata(pdev);
-	struct hisi_femac_mdio_data *data = bus->priv;
-
-	mdiobus_unregister(bus);
-	clk_disable_unprepare(data->clk);
-	mdiobus_free(bus);
-
-	return 0;
-}
-
-static const struct of_device_id hisi_femac_mdio_dt_ids[] = {
-	{ .compatible = "hisilicon,hisi-femac-mdio" },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, hisi_femac_mdio_dt_ids);
-
-static struct platform_driver hisi_femac_mdio_driver = {
-	.probe = hisi_femac_mdio_probe,
-	.remove = hisi_femac_mdio_remove,
-	.driver = {
-		.name = "hisi-femac-mdio",
-		.of_match_table = hisi_femac_mdio_dt_ids,
-	},
-};
-
-module_platform_driver(hisi_femac_mdio_driver);
-
-MODULE_DESCRIPTION("Hisilicon Fast Ethernet MAC MDIO interface driver");
-MODULE_AUTHOR("Dongpo Li <lidongpo@hisilicon.com>");
-MODULE_LICENSE("GPL");