diff options
Diffstat (limited to 'drivers/net/phy/mdio-thunder.c')
-rw-r--r-- | drivers/net/phy/mdio-thunder.c | 152 |
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"); |