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-thunder.c b/drivers/net/phy/mdio-thunder.c
deleted file mode 100644
index 3d7eda99d34e..000000000000
--- a/drivers/net/phy/mdio-thunder.c
+++ /dev/null
@@ -1,152 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2009-2016 Cavium, Inc.
- */
-
-#include <linux/of_address.h>
-#include <linux/of_mdio.h>
-#include <linux/module.h>
-#include <linux/gfp.h>
-#include <linux/phy.h>
-#include <linux/io.h>
-#include <linux/acpi.h>
-#include <linux/pci.h>
-
-#include "mdio-cavium.h"
-
-struct thunder_mdiobus_nexus {
-	void __iomem *bar0;
-	struct cavium_mdiobus *buses[4];
-};
-
-static int thunder_mdiobus_pci_probe(struct pci_dev *pdev,
-				     const struct pci_device_id *ent)
-{
-	struct device_node *node;
-	struct fwnode_handle *fwn;
-	struct thunder_mdiobus_nexus *nexus;
-	int err;
-	int i;
-
-	nexus = devm_kzalloc(&pdev->dev, sizeof(*nexus), GFP_KERNEL);
-	if (!nexus)
-		return -ENOMEM;
-
-	pci_set_drvdata(pdev, nexus);
-
-	err = pcim_enable_device(pdev);
-	if (err) {
-		dev_err(&pdev->dev, "Failed to enable PCI device\n");
-		pci_set_drvdata(pdev, NULL);
-		return err;
-	}
-
-	err = pci_request_regions(pdev, KBUILD_MODNAME);
-	if (err) {
-		dev_err(&pdev->dev, "pci_request_regions failed\n");
-		goto err_disable_device;
-	}
-
-	nexus->bar0 = pcim_iomap(pdev, 0, pci_resource_len(pdev, 0));
-	if (!nexus->bar0) {
-		err = -ENOMEM;
-		goto err_release_regions;
-	}
-
-	i = 0;
-	device_for_each_child_node(&pdev->dev, fwn) {
-		struct resource r;
-		struct mii_bus *mii_bus;
-		struct cavium_mdiobus *bus;
-		union cvmx_smix_en smi_en;
-
-		/* If it is not an OF node we cannot handle it yet, so
-		 * exit the loop.
-		 */
-		node = to_of_node(fwn);
-		if (!node)
-			break;
-
-		err = of_address_to_resource(node, 0, &r);
-		if (err) {
-			dev_err(&pdev->dev,
-				"Couldn't translate address for \"%pOFn\"\n",
-				node);
-			break;
-		}
-
-		mii_bus = devm_mdiobus_alloc_size(&pdev->dev, sizeof(*bus));
-		if (!mii_bus)
-			break;
-		bus = mii_bus->priv;
-		bus->mii_bus = mii_bus;
-
-		nexus->buses[i] = bus;
-		i++;
-
-		bus->register_base = nexus->bar0 +
-			r.start - pci_resource_start(pdev, 0);
-
-		smi_en.u64 = 0;
-		smi_en.s.en = 1;
-		oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN);
-		bus->mii_bus->name = KBUILD_MODNAME;
-		snprintf(bus->mii_bus->id, MII_BUS_ID_SIZE, "%llx", r.start);
-		bus->mii_bus->parent = &pdev->dev;
-		bus->mii_bus->read = cavium_mdiobus_read;
-		bus->mii_bus->write = cavium_mdiobus_write;
-
-		err = of_mdiobus_register(bus->mii_bus, node);
-		if (err)
-			dev_err(&pdev->dev, "of_mdiobus_register failed\n");
-
-		dev_info(&pdev->dev, "Added bus at %llx\n", r.start);
-		if (i >= ARRAY_SIZE(nexus->buses))
-			break;
-	}
-	return 0;
-
-err_release_regions:
-	pci_release_regions(pdev);
-
-err_disable_device:
-	pci_set_drvdata(pdev, NULL);
-	return err;
-}
-
-static void thunder_mdiobus_pci_remove(struct pci_dev *pdev)
-{
-	int i;
-	struct thunder_mdiobus_nexus *nexus = pci_get_drvdata(pdev);
-
-	for (i = 0; i < ARRAY_SIZE(nexus->buses); i++) {
-		struct cavium_mdiobus *bus = nexus->buses[i];
-
-		if (!bus)
-			continue;
-
-		mdiobus_unregister(bus->mii_bus);
-		mdiobus_free(bus->mii_bus);
-		oct_mdio_writeq(0, bus->register_base + SMI_EN);
-	}
-	pci_release_regions(pdev);
-	pci_set_drvdata(pdev, NULL);
-}
-
-static const struct pci_device_id thunder_mdiobus_id_table[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, 0xa02b) },
-	{ 0, } /* End of table. */
-};
-MODULE_DEVICE_TABLE(pci, thunder_mdiobus_id_table);
-
-static struct pci_driver thunder_mdiobus_driver = {
-	.name = KBUILD_MODNAME,
-	.id_table = thunder_mdiobus_id_table,
-	.probe = thunder_mdiobus_pci_probe,
-	.remove = thunder_mdiobus_pci_remove,
-};
-
-module_pci_driver(thunder_mdiobus_driver);
-
-MODULE_DESCRIPTION("Cavium ThunderX MDIO bus driver");
-MODULE_LICENSE("GPL v2");