00db8189d9
ethernet drivers to remain as ignorant as is reasonable of the connected PHY's design and operation details. Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
140 lines
3 KiB
C
140 lines
3 KiB
C
/*
|
|
* drivers/net/phy/marvell.c
|
|
*
|
|
* Driver for Marvell 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/config.h>
|
|
#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/version.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>
|
|
|
|
#define MII_M1011_IEVENT 0x13
|
|
#define MII_M1011_IEVENT_CLEAR 0x0000
|
|
|
|
#define MII_M1011_IMASK 0x12
|
|
#define MII_M1011_IMASK_INIT 0x6400
|
|
#define MII_M1011_IMASK_CLEAR 0x0000
|
|
|
|
MODULE_DESCRIPTION("Marvell PHY driver");
|
|
MODULE_AUTHOR("Andy Fleming");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static int marvell_ack_interrupt(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
/* Clear the interrupts by reading the reg */
|
|
err = phy_read(phydev, MII_M1011_IEVENT);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int marvell_config_intr(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
|
|
err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
|
|
else
|
|
err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int marvell_config_aneg(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
/* The Marvell PHY has an errata which requires
|
|
* that certain registers get written in order
|
|
* to restart autonegotiation */
|
|
err = phy_write(phydev, MII_BMCR, BMCR_RESET);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = phy_write(phydev, 0x1d, 0x1f);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = phy_write(phydev, 0x1e, 0x200c);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = phy_write(phydev, 0x1d, 0x5);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = phy_write(phydev, 0x1e, 0);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = phy_write(phydev, 0x1e, 0x100);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
|
|
err = genphy_config_aneg(phydev);
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
static struct phy_driver m88e1101_driver = {
|
|
.phy_id = 0x01410c00,
|
|
.phy_id_mask = 0xffffff00,
|
|
.name = "Marvell 88E1101",
|
|
.features = PHY_GBIT_FEATURES,
|
|
.flags = PHY_HAS_INTERRUPT,
|
|
.config_aneg = &marvell_config_aneg,
|
|
.read_status = &genphy_read_status,
|
|
.ack_interrupt = &marvell_ack_interrupt,
|
|
.config_intr = &marvell_config_intr,
|
|
.driver = { .owner = THIS_MODULE,},
|
|
};
|
|
|
|
static int __init marvell_init(void)
|
|
{
|
|
return phy_driver_register(&m88e1101_driver);
|
|
}
|
|
|
|
static void __exit marvell_exit(void)
|
|
{
|
|
phy_driver_unregister(&m88e1101_driver);
|
|
}
|
|
|
|
module_init(marvell_init);
|
|
module_exit(marvell_exit);
|