184 lines
3.9 KiB
C
184 lines
3.9 KiB
C
/*
|
|
* drivers/net/phy/lxt.c
|
|
*
|
|
* Driver for Intel LXT PHYs
|
|
*
|
|
* 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/string.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/unistd.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>
|
|
|
|
/* The Level one LXT970 is used by many boards */
|
|
|
|
#define MII_LXT970_IER 17 /* Interrupt Enable Register */
|
|
|
|
#define MII_LXT970_IER_IEN 0x0002
|
|
|
|
#define MII_LXT970_ISR 18 /* Interrupt Status Register */
|
|
|
|
#define MII_LXT970_CONFIG 19 /* Configuration Register */
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
/* The Level one LXT971 is used on some of my custom boards */
|
|
|
|
/* register definitions for the 971 */
|
|
#define MII_LXT971_IER 18 /* Interrupt Enable Register */
|
|
#define MII_LXT971_IER_IEN 0x00f2
|
|
|
|
#define MII_LXT971_ISR 19 /* Interrupt Status Register */
|
|
|
|
|
|
MODULE_DESCRIPTION("Intel LXT PHY driver");
|
|
MODULE_AUTHOR("Andy Fleming");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static int lxt970_ack_interrupt(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
err = phy_read(phydev, MII_BMSR);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = phy_read(phydev, MII_LXT970_ISR);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lxt970_config_intr(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
|
|
err = phy_write(phydev, MII_LXT970_IER, MII_LXT970_IER_IEN);
|
|
else
|
|
err = phy_write(phydev, MII_LXT970_IER, 0);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int lxt970_config_init(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
err = phy_write(phydev, MII_LXT970_CONFIG, 0);
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
static int lxt971_ack_interrupt(struct phy_device *phydev)
|
|
{
|
|
int err = phy_read(phydev, MII_LXT971_ISR);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lxt971_config_intr(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
|
|
err = phy_write(phydev, MII_LXT971_IER, MII_LXT971_IER_IEN);
|
|
else
|
|
err = phy_write(phydev, MII_LXT971_IER, 0);
|
|
|
|
return err;
|
|
}
|
|
|
|
static struct phy_driver lxt970_driver = {
|
|
.phy_id = 0x78100000,
|
|
.name = "LXT970",
|
|
.phy_id_mask = 0xfffffff0,
|
|
.features = PHY_BASIC_FEATURES,
|
|
.flags = PHY_HAS_INTERRUPT,
|
|
.config_init = lxt970_config_init,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = lxt970_ack_interrupt,
|
|
.config_intr = lxt970_config_intr,
|
|
.driver = { .owner = THIS_MODULE,},
|
|
};
|
|
|
|
static struct phy_driver lxt971_driver = {
|
|
.phy_id = 0x001378e0,
|
|
.name = "LXT971",
|
|
.phy_id_mask = 0xfffffff0,
|
|
.features = PHY_BASIC_FEATURES,
|
|
.flags = PHY_HAS_INTERRUPT,
|
|
.config_aneg = genphy_config_aneg,
|
|
.read_status = genphy_read_status,
|
|
.ack_interrupt = lxt971_ack_interrupt,
|
|
.config_intr = lxt971_config_intr,
|
|
.driver = { .owner = THIS_MODULE,},
|
|
};
|
|
|
|
static int __init lxt_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = phy_driver_register(&lxt970_driver);
|
|
if (ret)
|
|
goto err1;
|
|
|
|
ret = phy_driver_register(&lxt971_driver);
|
|
if (ret)
|
|
goto err2;
|
|
return 0;
|
|
|
|
err2:
|
|
phy_driver_unregister(&lxt970_driver);
|
|
err1:
|
|
return ret;
|
|
}
|
|
|
|
static void __exit lxt_exit(void)
|
|
{
|
|
phy_driver_unregister(&lxt970_driver);
|
|
phy_driver_unregister(&lxt971_driver);
|
|
}
|
|
|
|
module_init(lxt_init);
|
|
module_exit(lxt_exit);
|
|
|
|
static struct mdio_device_id lxt_tbl[] = {
|
|
{ 0x78100000, 0xfffffff0 },
|
|
{ 0x001378e0, 0xfffffff0 },
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(mdio, lxt_tbl);
|