diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/net/phy/mdio-octeon.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/phy/mdio-octeon.c | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/ANDROID_3.4.5/drivers/net/phy/mdio-octeon.c b/ANDROID_3.4.5/drivers/net/phy/mdio-octeon.c deleted file mode 100644 index 826d961f..00000000 --- a/ANDROID_3.4.5/drivers/net/phy/mdio-octeon.c +++ /dev/null @@ -1,192 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2009 Cavium Networks - */ - -#include <linux/gfp.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/phy.h> - -#include <asm/octeon/octeon.h> -#include <asm/octeon/cvmx-smix-defs.h> - -#define DRV_VERSION "1.0" -#define DRV_DESCRIPTION "Cavium Networks Octeon SMI/MDIO driver" - -struct octeon_mdiobus { - struct mii_bus *mii_bus; - int unit; - int phy_irq[PHY_MAX_ADDR]; -}; - -static int octeon_mdiobus_read(struct mii_bus *bus, int phy_id, int regnum) -{ - struct octeon_mdiobus *p = bus->priv; - union cvmx_smix_cmd smi_cmd; - union cvmx_smix_rd_dat smi_rd; - int timeout = 1000; - - smi_cmd.u64 = 0; - smi_cmd.s.phy_op = 1; /* MDIO_CLAUSE_22_READ */ - smi_cmd.s.phy_adr = phy_id; - smi_cmd.s.reg_adr = regnum; - cvmx_write_csr(CVMX_SMIX_CMD(p->unit), smi_cmd.u64); - - do { - /* - * Wait 1000 clocks so we don't saturate the RSL bus - * doing reads. - */ - cvmx_wait(1000); - smi_rd.u64 = cvmx_read_csr(CVMX_SMIX_RD_DAT(p->unit)); - } while (smi_rd.s.pending && --timeout); - - if (smi_rd.s.val) - return smi_rd.s.dat; - else - return -EIO; -} - -static int octeon_mdiobus_write(struct mii_bus *bus, int phy_id, - int regnum, u16 val) -{ - struct octeon_mdiobus *p = bus->priv; - union cvmx_smix_cmd smi_cmd; - union cvmx_smix_wr_dat smi_wr; - int timeout = 1000; - - smi_wr.u64 = 0; - smi_wr.s.dat = val; - cvmx_write_csr(CVMX_SMIX_WR_DAT(p->unit), smi_wr.u64); - - smi_cmd.u64 = 0; - smi_cmd.s.phy_op = 0; /* MDIO_CLAUSE_22_WRITE */ - smi_cmd.s.phy_adr = phy_id; - smi_cmd.s.reg_adr = regnum; - cvmx_write_csr(CVMX_SMIX_CMD(p->unit), smi_cmd.u64); - - do { - /* - * Wait 1000 clocks so we don't saturate the RSL bus - * doing reads. - */ - cvmx_wait(1000); - smi_wr.u64 = cvmx_read_csr(CVMX_SMIX_WR_DAT(p->unit)); - } while (smi_wr.s.pending && --timeout); - - if (timeout <= 0) - return -EIO; - - return 0; -} - -static int __devinit octeon_mdiobus_probe(struct platform_device *pdev) -{ - struct octeon_mdiobus *bus; - union cvmx_smix_en smi_en; - int i; - int err = -ENOENT; - - bus = devm_kzalloc(&pdev->dev, sizeof(*bus), GFP_KERNEL); - if (!bus) - return -ENOMEM; - - /* The platform_device id is our unit number. */ - bus->unit = pdev->id; - - bus->mii_bus = mdiobus_alloc(); - - if (!bus->mii_bus) - goto err; - - smi_en.u64 = 0; - smi_en.s.en = 1; - cvmx_write_csr(CVMX_SMIX_EN(bus->unit), smi_en.u64); - - /* - * Standard Octeon evaluation boards don't support phy - * interrupts, we need to poll. - */ - for (i = 0; i < PHY_MAX_ADDR; i++) - bus->phy_irq[i] = PHY_POLL; - - bus->mii_bus->priv = bus; - bus->mii_bus->irq = bus->phy_irq; - bus->mii_bus->name = "mdio-octeon"; - snprintf(bus->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x", - bus->mii_bus->name, bus->unit); - bus->mii_bus->parent = &pdev->dev; - - bus->mii_bus->read = octeon_mdiobus_read; - bus->mii_bus->write = octeon_mdiobus_write; - - dev_set_drvdata(&pdev->dev, bus); - - err = mdiobus_register(bus->mii_bus); - if (err) - goto err_register; - - dev_info(&pdev->dev, "Version " DRV_VERSION "\n"); - - return 0; -err_register: - mdiobus_free(bus->mii_bus); - -err: - devm_kfree(&pdev->dev, bus); - smi_en.u64 = 0; - cvmx_write_csr(CVMX_SMIX_EN(bus->unit), smi_en.u64); - return err; -} - -static int __devexit octeon_mdiobus_remove(struct platform_device *pdev) -{ - struct octeon_mdiobus *bus; - union cvmx_smix_en smi_en; - - bus = dev_get_drvdata(&pdev->dev); - - mdiobus_unregister(bus->mii_bus); - mdiobus_free(bus->mii_bus); - smi_en.u64 = 0; - cvmx_write_csr(CVMX_SMIX_EN(bus->unit), smi_en.u64); - return 0; -} - -static struct platform_driver octeon_mdiobus_driver = { - .driver = { - .name = "mdio-octeon", - .owner = THIS_MODULE, - }, - .probe = octeon_mdiobus_probe, - .remove = __devexit_p(octeon_mdiobus_remove), -}; - -void octeon_mdiobus_force_mod_depencency(void) -{ - /* Let ethernet drivers force us to be loaded. */ -} -EXPORT_SYMBOL(octeon_mdiobus_force_mod_depencency); - -static int __init octeon_mdiobus_mod_init(void) -{ - return platform_driver_register(&octeon_mdiobus_driver); -} - -static void __exit octeon_mdiobus_mod_exit(void) -{ - platform_driver_unregister(&octeon_mdiobus_driver); -} - -module_init(octeon_mdiobus_mod_init); -module_exit(octeon_mdiobus_mod_exit); - -MODULE_DESCRIPTION(DRV_DESCRIPTION); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("David Daney"); -MODULE_LICENSE("GPL"); |