707 строки
16 KiB
C
707 строки
16 KiB
C
/*
|
|
* drivers/net/phy/phy_device.c
|
|
*
|
|
* Framework for finding and configuring PHYs.
|
|
* Also contains generic PHY driver
|
|
*
|
|
* Author: Andy Fleming
|
|
*
|
|
* Copyright (c) 2004 Freescale Semiconductor, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/string.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/unistd.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/init.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/netdevice.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/module.h>
|
|
#include <linux/mii.h>
|
|
#include <linux/ethtool.h>
|
|
#include <linux/phy.h>
|
|
|
|
#include <asm/io.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/uaccess.h>
|
|
|
|
MODULE_DESCRIPTION("PHY library");
|
|
MODULE_AUTHOR("Andy Fleming");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static struct phy_driver genphy_driver;
|
|
extern int mdio_bus_init(void);
|
|
extern void mdio_bus_exit(void);
|
|
|
|
struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id)
|
|
{
|
|
struct phy_device *dev;
|
|
/* We allocate the device, and initialize the
|
|
* default values */
|
|
dev = kcalloc(1, sizeof(*dev), GFP_KERNEL);
|
|
|
|
if (NULL == dev)
|
|
return (struct phy_device*) PTR_ERR((void*)-ENOMEM);
|
|
|
|
dev->speed = 0;
|
|
dev->duplex = -1;
|
|
dev->pause = dev->asym_pause = 0;
|
|
dev->link = 1;
|
|
|
|
dev->autoneg = AUTONEG_ENABLE;
|
|
|
|
dev->addr = addr;
|
|
dev->phy_id = phy_id;
|
|
dev->bus = bus;
|
|
|
|
dev->state = PHY_DOWN;
|
|
|
|
spin_lock_init(&dev->lock);
|
|
|
|
return dev;
|
|
}
|
|
EXPORT_SYMBOL(phy_device_create);
|
|
|
|
/* get_phy_device
|
|
*
|
|
* description: Reads the ID registers of the PHY at addr on the
|
|
* bus, then allocates and returns the phy_device to
|
|
* represent it.
|
|
*/
|
|
struct phy_device * get_phy_device(struct mii_bus *bus, int addr)
|
|
{
|
|
int phy_reg;
|
|
u32 phy_id;
|
|
struct phy_device *dev = NULL;
|
|
|
|
/* Grab the bits from PHYIR1, and put them
|
|
* in the upper half */
|
|
phy_reg = bus->read(bus, addr, MII_PHYSID1);
|
|
|
|
if (phy_reg < 0)
|
|
return ERR_PTR(phy_reg);
|
|
|
|
phy_id = (phy_reg & 0xffff) << 16;
|
|
|
|
/* Grab the bits from PHYIR2, and put them in the lower half */
|
|
phy_reg = bus->read(bus, addr, MII_PHYSID2);
|
|
|
|
if (phy_reg < 0)
|
|
return ERR_PTR(phy_reg);
|
|
|
|
phy_id |= (phy_reg & 0xffff);
|
|
|
|
/* If the phy_id is all Fs, there is no device there */
|
|
if (0xffffffff == phy_id)
|
|
return NULL;
|
|
|
|
dev = phy_device_create(bus, addr, phy_id);
|
|
|
|
return dev;
|
|
}
|
|
|
|
/* phy_prepare_link:
|
|
*
|
|
* description: Tells the PHY infrastructure to handle the
|
|
* gory details on monitoring link status (whether through
|
|
* polling or an interrupt), and to call back to the
|
|
* connected device driver when the link status changes.
|
|
* If you want to monitor your own link state, don't call
|
|
* this function */
|
|
void phy_prepare_link(struct phy_device *phydev,
|
|
void (*handler)(struct net_device *))
|
|
{
|
|
phydev->adjust_link = handler;
|
|
}
|
|
|
|
/* phy_connect:
|
|
*
|
|
* description: Convenience function for connecting ethernet
|
|
* devices to PHY devices. The default behavior is for
|
|
* the PHY infrastructure to handle everything, and only notify
|
|
* the connected driver when the link status changes. If you
|
|
* don't want, or can't use the provided functionality, you may
|
|
* choose to call only the subset of functions which provide
|
|
* the desired functionality.
|
|
*/
|
|
struct phy_device * phy_connect(struct net_device *dev, const char *phy_id,
|
|
void (*handler)(struct net_device *), u32 flags)
|
|
{
|
|
struct phy_device *phydev;
|
|
|
|
phydev = phy_attach(dev, phy_id, flags);
|
|
|
|
if (IS_ERR(phydev))
|
|
return phydev;
|
|
|
|
phy_prepare_link(phydev, handler);
|
|
|
|
phy_start_machine(phydev, NULL);
|
|
|
|
if (phydev->irq > 0)
|
|
phy_start_interrupts(phydev);
|
|
|
|
return phydev;
|
|
}
|
|
EXPORT_SYMBOL(phy_connect);
|
|
|
|
void phy_disconnect(struct phy_device *phydev)
|
|
{
|
|
if (phydev->irq > 0)
|
|
phy_stop_interrupts(phydev);
|
|
|
|
phy_stop_machine(phydev);
|
|
|
|
phydev->adjust_link = NULL;
|
|
|
|
phy_detach(phydev);
|
|
}
|
|
EXPORT_SYMBOL(phy_disconnect);
|
|
|
|
/* phy_attach:
|
|
*
|
|
* description: Called by drivers to attach to a particular PHY
|
|
* device. The phy_device is found, and properly hooked up
|
|
* to the phy_driver. If no driver is attached, then the
|
|
* genphy_driver is used. The phy_device is given a ptr to
|
|
* the attaching device, and given a callback for link status
|
|
* change. The phy_device is returned to the attaching
|
|
* driver.
|
|
*/
|
|
static int phy_compare_id(struct device *dev, void *data)
|
|
{
|
|
return strcmp((char *)data, dev->bus_id) ? 0 : 1;
|
|
}
|
|
|
|
struct phy_device *phy_attach(struct net_device *dev,
|
|
const char *phy_id, u32 flags)
|
|
{
|
|
struct bus_type *bus = &mdio_bus_type;
|
|
struct phy_device *phydev;
|
|
struct device *d;
|
|
|
|
/* Search the list of PHY devices on the mdio bus for the
|
|
* PHY with the requested name */
|
|
d = bus_find_device(bus, NULL, (void *)phy_id, phy_compare_id);
|
|
|
|
if (d) {
|
|
phydev = to_phy_device(d);
|
|
} else {
|
|
printk(KERN_ERR "%s not found\n", phy_id);
|
|
return ERR_PTR(-ENODEV);
|
|
}
|
|
|
|
/* Assume that if there is no driver, that it doesn't
|
|
* exist, and we should use the genphy driver. */
|
|
if (NULL == d->driver) {
|
|
int err;
|
|
down_write(&d->bus->subsys.rwsem);
|
|
d->driver = &genphy_driver.driver;
|
|
|
|
err = d->driver->probe(d);
|
|
|
|
if (err >= 0)
|
|
err = device_bind_driver(d);
|
|
|
|
up_write(&d->bus->subsys.rwsem);
|
|
|
|
if (err)
|
|
return ERR_PTR(err);
|
|
}
|
|
|
|
if (phydev->attached_dev) {
|
|
printk(KERN_ERR "%s: %s already attached\n",
|
|
dev->name, phy_id);
|
|
return ERR_PTR(-EBUSY);
|
|
}
|
|
|
|
phydev->attached_dev = dev;
|
|
|
|
phydev->dev_flags = flags;
|
|
|
|
return phydev;
|
|
}
|
|
EXPORT_SYMBOL(phy_attach);
|
|
|
|
void phy_detach(struct phy_device *phydev)
|
|
{
|
|
phydev->attached_dev = NULL;
|
|
|
|
/* If the device had no specific driver before (i.e. - it
|
|
* was using the generic driver), we unbind the device
|
|
* from the generic driver so that there's a chance a
|
|
* real driver could be loaded */
|
|
if (phydev->dev.driver == &genphy_driver.driver) {
|
|
down_write(&phydev->dev.bus->subsys.rwsem);
|
|
device_release_driver(&phydev->dev);
|
|
up_write(&phydev->dev.bus->subsys.rwsem);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(phy_detach);
|
|
|
|
|
|
/* Generic PHY support and helper functions */
|
|
|
|
/* genphy_config_advert
|
|
*
|
|
* description: Writes MII_ADVERTISE with the appropriate values,
|
|
* after sanitizing the values to make sure we only advertise
|
|
* what is supported
|
|
*/
|
|
int genphy_config_advert(struct phy_device *phydev)
|
|
{
|
|
u32 advertise;
|
|
int adv;
|
|
int err;
|
|
|
|
/* Only allow advertising what
|
|
* this PHY supports */
|
|
phydev->advertising &= phydev->supported;
|
|
advertise = phydev->advertising;
|
|
|
|
/* Setup standard advertisement */
|
|
adv = phy_read(phydev, MII_ADVERTISE);
|
|
|
|
if (adv < 0)
|
|
return adv;
|
|
|
|
adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP |
|
|
ADVERTISE_PAUSE_ASYM);
|
|
if (advertise & ADVERTISED_10baseT_Half)
|
|
adv |= ADVERTISE_10HALF;
|
|
if (advertise & ADVERTISED_10baseT_Full)
|
|
adv |= ADVERTISE_10FULL;
|
|
if (advertise & ADVERTISED_100baseT_Half)
|
|
adv |= ADVERTISE_100HALF;
|
|
if (advertise & ADVERTISED_100baseT_Full)
|
|
adv |= ADVERTISE_100FULL;
|
|
if (advertise & ADVERTISED_Pause)
|
|
adv |= ADVERTISE_PAUSE_CAP;
|
|
if (advertise & ADVERTISED_Asym_Pause)
|
|
adv |= ADVERTISE_PAUSE_ASYM;
|
|
|
|
err = phy_write(phydev, MII_ADVERTISE, adv);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* Configure gigabit if it's supported */
|
|
if (phydev->supported & (SUPPORTED_1000baseT_Half |
|
|
SUPPORTED_1000baseT_Full)) {
|
|
adv = phy_read(phydev, MII_CTRL1000);
|
|
|
|
if (adv < 0)
|
|
return adv;
|
|
|
|
adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
|
|
if (advertise & SUPPORTED_1000baseT_Half)
|
|
adv |= ADVERTISE_1000HALF;
|
|
if (advertise & SUPPORTED_1000baseT_Full)
|
|
adv |= ADVERTISE_1000FULL;
|
|
err = phy_write(phydev, MII_CTRL1000, adv);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
return adv;
|
|
}
|
|
EXPORT_SYMBOL(genphy_config_advert);
|
|
|
|
/* genphy_setup_forced
|
|
*
|
|
* description: Configures MII_BMCR to force speed/duplex
|
|
* to the values in phydev. Assumes that the values are valid.
|
|
* Please see phy_sanitize_settings() */
|
|
int genphy_setup_forced(struct phy_device *phydev)
|
|
{
|
|
int ctl = BMCR_RESET;
|
|
|
|
phydev->pause = phydev->asym_pause = 0;
|
|
|
|
if (SPEED_1000 == phydev->speed)
|
|
ctl |= BMCR_SPEED1000;
|
|
else if (SPEED_100 == phydev->speed)
|
|
ctl |= BMCR_SPEED100;
|
|
|
|
if (DUPLEX_FULL == phydev->duplex)
|
|
ctl |= BMCR_FULLDPLX;
|
|
|
|
ctl = phy_write(phydev, MII_BMCR, ctl);
|
|
|
|
if (ctl < 0)
|
|
return ctl;
|
|
|
|
/* We just reset the device, so we'd better configure any
|
|
* settings the PHY requires to operate */
|
|
if (phydev->drv->config_init)
|
|
ctl = phydev->drv->config_init(phydev);
|
|
|
|
return ctl;
|
|
}
|
|
|
|
|
|
/* Enable and Restart Autonegotiation */
|
|
int genphy_restart_aneg(struct phy_device *phydev)
|
|
{
|
|
int ctl;
|
|
|
|
ctl = phy_read(phydev, MII_BMCR);
|
|
|
|
if (ctl < 0)
|
|
return ctl;
|
|
|
|
ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
|
|
|
|
/* Don't isolate the PHY if we're negotiating */
|
|
ctl &= ~(BMCR_ISOLATE);
|
|
|
|
ctl = phy_write(phydev, MII_BMCR, ctl);
|
|
|
|
return ctl;
|
|
}
|
|
|
|
|
|
/* genphy_config_aneg
|
|
*
|
|
* description: If auto-negotiation is enabled, we configure the
|
|
* advertising, and then restart auto-negotiation. If it is not
|
|
* enabled, then we write the BMCR
|
|
*/
|
|
int genphy_config_aneg(struct phy_device *phydev)
|
|
{
|
|
int err = 0;
|
|
|
|
if (AUTONEG_ENABLE == phydev->autoneg) {
|
|
err = genphy_config_advert(phydev);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = genphy_restart_aneg(phydev);
|
|
} else
|
|
err = genphy_setup_forced(phydev);
|
|
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(genphy_config_aneg);
|
|
|
|
/* genphy_update_link
|
|
*
|
|
* description: Update the value in phydev->link to reflect the
|
|
* current link value. In order to do this, we need to read
|
|
* the status register twice, keeping the second value
|
|
*/
|
|
int genphy_update_link(struct phy_device *phydev)
|
|
{
|
|
int status;
|
|
|
|
/* Do a fake read */
|
|
status = phy_read(phydev, MII_BMSR);
|
|
|
|
if (status < 0)
|
|
return status;
|
|
|
|
/* Read link and autonegotiation status */
|
|
status = phy_read(phydev, MII_BMSR);
|
|
|
|
if (status < 0)
|
|
return status;
|
|
|
|
if ((status & BMSR_LSTATUS) == 0)
|
|
phydev->link = 0;
|
|
else
|
|
phydev->link = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* genphy_read_status
|
|
*
|
|
* description: Check the link, then figure out the current state
|
|
* by comparing what we advertise with what the link partner
|
|
* advertises. Start by checking the gigabit possibilities,
|
|
* then move on to 10/100.
|
|
*/
|
|
int genphy_read_status(struct phy_device *phydev)
|
|
{
|
|
int adv;
|
|
int err;
|
|
int lpa;
|
|
int lpagb = 0;
|
|
|
|
/* Update the link, but return if there
|
|
* was an error */
|
|
err = genphy_update_link(phydev);
|
|
if (err)
|
|
return err;
|
|
|
|
if (AUTONEG_ENABLE == phydev->autoneg) {
|
|
if (phydev->supported & (SUPPORTED_1000baseT_Half
|
|
| SUPPORTED_1000baseT_Full)) {
|
|
lpagb = phy_read(phydev, MII_STAT1000);
|
|
|
|
if (lpagb < 0)
|
|
return lpagb;
|
|
|
|
adv = phy_read(phydev, MII_CTRL1000);
|
|
|
|
if (adv < 0)
|
|
return adv;
|
|
|
|
lpagb &= adv << 2;
|
|
}
|
|
|
|
lpa = phy_read(phydev, MII_LPA);
|
|
|
|
if (lpa < 0)
|
|
return lpa;
|
|
|
|
adv = phy_read(phydev, MII_ADVERTISE);
|
|
|
|
if (adv < 0)
|
|
return adv;
|
|
|
|
lpa &= adv;
|
|
|
|
phydev->speed = SPEED_10;
|
|
phydev->duplex = DUPLEX_HALF;
|
|
phydev->pause = phydev->asym_pause = 0;
|
|
|
|
if (lpagb & (LPA_1000FULL | LPA_1000HALF)) {
|
|
phydev->speed = SPEED_1000;
|
|
|
|
if (lpagb & LPA_1000FULL)
|
|
phydev->duplex = DUPLEX_FULL;
|
|
} else if (lpa & (LPA_100FULL | LPA_100HALF)) {
|
|
phydev->speed = SPEED_100;
|
|
|
|
if (lpa & LPA_100FULL)
|
|
phydev->duplex = DUPLEX_FULL;
|
|
} else
|
|
if (lpa & LPA_10FULL)
|
|
phydev->duplex = DUPLEX_FULL;
|
|
|
|
if (phydev->duplex == DUPLEX_FULL){
|
|
phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
|
|
phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
|
|
}
|
|
} else {
|
|
int bmcr = phy_read(phydev, MII_BMCR);
|
|
if (bmcr < 0)
|
|
return bmcr;
|
|
|
|
if (bmcr & BMCR_FULLDPLX)
|
|
phydev->duplex = DUPLEX_FULL;
|
|
else
|
|
phydev->duplex = DUPLEX_HALF;
|
|
|
|
if (bmcr & BMCR_SPEED1000)
|
|
phydev->speed = SPEED_1000;
|
|
else if (bmcr & BMCR_SPEED100)
|
|
phydev->speed = SPEED_100;
|
|
else
|
|
phydev->speed = SPEED_10;
|
|
|
|
phydev->pause = phydev->asym_pause = 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(genphy_read_status);
|
|
|
|
static int genphy_config_init(struct phy_device *phydev)
|
|
{
|
|
int val;
|
|
u32 features;
|
|
|
|
/* For now, I'll claim that the generic driver supports
|
|
* all possible port types */
|
|
features = (SUPPORTED_TP | SUPPORTED_MII
|
|
| SUPPORTED_AUI | SUPPORTED_FIBRE |
|
|
SUPPORTED_BNC);
|
|
|
|
/* Do we support autonegotiation? */
|
|
val = phy_read(phydev, MII_BMSR);
|
|
|
|
if (val < 0)
|
|
return val;
|
|
|
|
if (val & BMSR_ANEGCAPABLE)
|
|
features |= SUPPORTED_Autoneg;
|
|
|
|
if (val & BMSR_100FULL)
|
|
features |= SUPPORTED_100baseT_Full;
|
|
if (val & BMSR_100HALF)
|
|
features |= SUPPORTED_100baseT_Half;
|
|
if (val & BMSR_10FULL)
|
|
features |= SUPPORTED_10baseT_Full;
|
|
if (val & BMSR_10HALF)
|
|
features |= SUPPORTED_10baseT_Half;
|
|
|
|
if (val & BMSR_ESTATEN) {
|
|
val = phy_read(phydev, MII_ESTATUS);
|
|
|
|
if (val < 0)
|
|
return val;
|
|
|
|
if (val & ESTATUS_1000_TFULL)
|
|
features |= SUPPORTED_1000baseT_Full;
|
|
if (val & ESTATUS_1000_THALF)
|
|
features |= SUPPORTED_1000baseT_Half;
|
|
}
|
|
|
|
phydev->supported = features;
|
|
phydev->advertising = features;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* phy_probe
|
|
*
|
|
* description: Take care of setting up the phy_device structure,
|
|
* set the state to READY (the driver's init function should
|
|
* set it to STARTING if needed).
|
|
*/
|
|
static int phy_probe(struct device *dev)
|
|
{
|
|
struct phy_device *phydev;
|
|
struct phy_driver *phydrv;
|
|
struct device_driver *drv;
|
|
int err = 0;
|
|
|
|
phydev = to_phy_device(dev);
|
|
|
|
/* Make sure the driver is held.
|
|
* XXX -- Is this correct? */
|
|
drv = get_driver(phydev->dev.driver);
|
|
phydrv = to_phy_driver(drv);
|
|
phydev->drv = phydrv;
|
|
|
|
/* Disable the interrupt if the PHY doesn't support it */
|
|
if (!(phydrv->flags & PHY_HAS_INTERRUPT))
|
|
phydev->irq = PHY_POLL;
|
|
|
|
spin_lock(&phydev->lock);
|
|
|
|
/* Start out supporting everything. Eventually,
|
|
* a controller will attach, and may modify one
|
|
* or both of these values */
|
|
phydev->supported = phydrv->features;
|
|
phydev->advertising = phydrv->features;
|
|
|
|
/* Set the state to READY by default */
|
|
phydev->state = PHY_READY;
|
|
|
|
if (phydev->drv->probe)
|
|
err = phydev->drv->probe(phydev);
|
|
|
|
spin_unlock(&phydev->lock);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (phydev->drv->config_init)
|
|
err = phydev->drv->config_init(phydev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int phy_remove(struct device *dev)
|
|
{
|
|
struct phy_device *phydev;
|
|
|
|
phydev = to_phy_device(dev);
|
|
|
|
spin_lock(&phydev->lock);
|
|
phydev->state = PHY_DOWN;
|
|
spin_unlock(&phydev->lock);
|
|
|
|
if (phydev->drv->remove)
|
|
phydev->drv->remove(phydev);
|
|
|
|
put_driver(dev->driver);
|
|
phydev->drv = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int phy_driver_register(struct phy_driver *new_driver)
|
|
{
|
|
int retval;
|
|
|
|
memset(&new_driver->driver, 0, sizeof(new_driver->driver));
|
|
new_driver->driver.name = new_driver->name;
|
|
new_driver->driver.bus = &mdio_bus_type;
|
|
new_driver->driver.probe = phy_probe;
|
|
new_driver->driver.remove = phy_remove;
|
|
|
|
retval = driver_register(&new_driver->driver);
|
|
|
|
if (retval) {
|
|
printk(KERN_ERR "%s: Error %d in registering driver\n",
|
|
new_driver->name, retval);
|
|
|
|
return retval;
|
|
}
|
|
|
|
pr_info("%s: Registered new driver\n", new_driver->name);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(phy_driver_register);
|
|
|
|
void phy_driver_unregister(struct phy_driver *drv)
|
|
{
|
|
driver_unregister(&drv->driver);
|
|
}
|
|
EXPORT_SYMBOL(phy_driver_unregister);
|
|
|
|
static struct phy_driver genphy_driver = {
|
|
.phy_id = 0xffffffff,
|
|
.phy_id_mask = 0xffffffff,
|
|
.name = "Generic PHY",
|
|
.config_init = genphy_config_init,
|
|
.features = 0,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.driver = {.owner= THIS_MODULE, },
|
|
};
|
|
|
|
static int __init phy_init(void)
|
|
{
|
|
int rc;
|
|
|
|
rc = mdio_bus_init();
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = phy_driver_register(&genphy_driver);
|
|
if (rc)
|
|
mdio_bus_exit();
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void __exit phy_exit(void)
|
|
{
|
|
phy_driver_unregister(&genphy_driver);
|
|
mdio_bus_exit();
|
|
}
|
|
|
|
subsys_initcall(phy_init);
|
|
module_exit(phy_exit);
|