diff options
Diffstat (limited to 'drivers/net/miiphy.c')
-rw-r--r-- | drivers/net/miiphy.c | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/drivers/net/miiphy.c b/drivers/net/miiphy.c deleted file mode 100644 index 12aa7a632c..0000000000 --- a/drivers/net/miiphy.c +++ /dev/null @@ -1,224 +0,0 @@ -/* - * miiphy.c - generic phy abstraction - * - * Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <common.h> -#include <driver.h> -#include <init.h> -#include <miiphy.h> -#include <clock.h> -#include <net.h> -#include <malloc.h> - -int miiphy_restart_aneg(struct miiphy_device *mdev) -{ - uint16_t status; - int timeout; - - /* - * Reset PHY, then delay 300ns - */ - mdev->write(mdev, mdev->address, MII_BMCR, BMCR_RESET); - - if (mdev->flags & MIIPHY_FORCE_LINK) - return 0; - - udelay(1000); - - if (mdev->flags & MIIPHY_FORCE_10) { - printf("Forcing 10 Mbps ethernet link... "); - mdev->read(mdev, mdev->address, MII_BMSR, &status); - mdev->write(mdev, mdev->address, MII_BMCR, BMCR_FULLDPLX | BMCR_CTST); - - timeout = 20; - do { /* wait for link status to go down */ - udelay(10000); - if ((timeout--) == 0) { - debug("hmmm, should not have waited..."); - break; - } - mdev->read(mdev, mdev->address, MII_BMSR, &status); - } while (status & BMSR_LSTATUS); - - } else { /* MII100 */ - /* - * Set the auto-negotiation advertisement register bits - */ - mdev->read(mdev, mdev->address, MII_ADVERTISE, &status); - status |= ADVERTISE_ALL; - mdev->write(mdev, mdev->address, MII_ADVERTISE, status); - - mdev->write(mdev, mdev->address, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART); - } - - return 0; -} - -int miiphy_wait_aneg(struct miiphy_device *mdev) -{ - uint64_t start; - uint16_t status; - - if (mdev->flags & MIIPHY_FORCE_LINK) - return 0; - - /* - * Wait for AN completion - */ - start = get_time_ns(); - do { - if (is_timeout(start, 5 * SECOND)) { - printf("%s: Autonegotiation timeout\n", mdev->cdev.name); - return -1; - } - - if (mdev->read(mdev, mdev->address, MII_BMSR, &status)) { - printf("%s: Autonegotiation failed. status: 0x%04x\n", mdev->cdev.name, status); - return -1; - } - } while (!(status & BMSR_LSTATUS)); - - return 0; -} - -int miiphy_print_status(struct miiphy_device *mdev) -{ - uint16_t bmsr, bmcr, lpa; - char *duplex; - int speed; - - if (mdev->flags & MIIPHY_FORCE_LINK) { - printf("Forcing link present...\n"); - return 0; - } - - if (mdev->read(mdev, mdev->address, MII_BMSR, &bmsr) != 0) - goto err_out; - if (mdev->read(mdev, mdev->address, MII_BMCR, &bmcr) != 0) - goto err_out; - if (mdev->read(mdev, mdev->address, MII_LPA, &lpa) != 0) - goto err_out; - - printf("%s: Link is %s", mdev->cdev.name, - bmsr & BMSR_LSTATUS ? "up" : "down"); - - if (bmcr & BMCR_ANENABLE) { - duplex = lpa & LPA_DUPLEX ? "Full" : "Half"; - speed = lpa & LPA_100 ? 100 : 10; - } else { - duplex = bmcr & BMCR_FULLDPLX ? "Full" : "Half"; - speed = bmcr & BMCR_SPEED100 ? 100 : 10; - } - - printf(" - %d/%s\n", speed, duplex); - - return 0; -err_out: - printf("%s: failed to read\n", mdev->cdev.name); - return -1; -} - -static ssize_t miiphy_read(struct cdev *cdev, void *_buf, size_t count, ulong offset, ulong flags) -{ - int i = count; - uint16_t *buf = _buf; - struct miiphy_device *mdev = cdev->priv; - - while (i > 1) { - mdev->read(mdev, mdev->address, offset, buf); - buf++; - i -= 2; - offset++; - } - - return count; -} - -static ssize_t miiphy_write(struct cdev *cdev, const void *_buf, size_t count, ulong offset, ulong flags) -{ - int i = count; - const uint16_t *buf = _buf; - struct miiphy_device *mdev = cdev->priv; - - while (i > 1) { - mdev->write(mdev, mdev->address, offset, *buf); - buf++; - i -= 2; - offset++; - } - - return count; -} - -static struct file_operations miiphy_ops = { - .read = miiphy_read, - .write = miiphy_write, - .lseek = dev_lseek_default, -}; - -static int miiphy_probe(struct device_d *dev) -{ - struct miiphy_device *mdev = dev->priv; - - mdev->cdev.name = asprintf("phy%d", dev->id); - mdev->cdev.size = 32; - mdev->cdev.ops = &miiphy_ops; - mdev->cdev.priv = mdev; - mdev->cdev.dev = dev; - devfs_create(&mdev->cdev); - return 0; -} - -static void miiphy_remove(struct device_d *dev) -{ - struct miiphy_device *mdev = dev->priv; - - free(mdev->cdev.name); - devfs_remove(&mdev->cdev); -} - -static struct driver_d miiphy_drv = { - .name = "miiphy", - .probe = miiphy_probe, - .remove = miiphy_remove, -}; - -int miiphy_register(struct miiphy_device *mdev) -{ - mdev->dev.priv = mdev; - strcpy(mdev->dev.name, "miiphy"); - - return register_device(&mdev->dev); -} - -void miiphy_unregister(struct miiphy_device *mdev) -{ - unregister_device(&mdev->dev); -} - -static int miiphy_init(void) -{ - register_driver(&miiphy_drv); - return 0; -} - -device_initcall(miiphy_init); - |