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path: root/drivers/net/phy/mdio-thunder.c
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Diffstat (limited to 'drivers/net/phy/mdio-thunder.c')
-rw-r--r--drivers/net/phy/mdio-thunder.c152
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");