mirror of
https://github.com/torvalds/linux.git
synced 2024-12-03 17:41:22 +00:00
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>
135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
/*
|
|
* drivers/net/phy/cicada.c
|
|
*
|
|
* Driver for Cicada 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>
|
|
|
|
/* Cicada Extended Control Register 1 */
|
|
#define MII_CIS8201_EXT_CON1 0x17
|
|
#define MII_CIS8201_EXTCON1_INIT 0x0000
|
|
|
|
/* Cicada Interrupt Mask Register */
|
|
#define MII_CIS8201_IMASK 0x19
|
|
#define MII_CIS8201_IMASK_IEN 0x8000
|
|
#define MII_CIS8201_IMASK_SPEED 0x4000
|
|
#define MII_CIS8201_IMASK_LINK 0x2000
|
|
#define MII_CIS8201_IMASK_DUPLEX 0x1000
|
|
#define MII_CIS8201_IMASK_MASK 0xf000
|
|
|
|
/* Cicada Interrupt Status Register */
|
|
#define MII_CIS8201_ISTAT 0x1a
|
|
#define MII_CIS8201_ISTAT_STATUS 0x8000
|
|
#define MII_CIS8201_ISTAT_SPEED 0x4000
|
|
#define MII_CIS8201_ISTAT_LINK 0x2000
|
|
#define MII_CIS8201_ISTAT_DUPLEX 0x1000
|
|
|
|
/* Cicada Auxiliary Control/Status Register */
|
|
#define MII_CIS8201_AUX_CONSTAT 0x1c
|
|
#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
|
|
#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
|
|
#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
|
|
#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
|
|
#define MII_CIS8201_AUXCONSTAT_100 0x0008
|
|
|
|
MODULE_DESCRIPTION("Cicadia PHY driver");
|
|
MODULE_AUTHOR("Andy Fleming");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static int cis820x_config_init(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
err = phy_write(phydev, MII_CIS8201_AUX_CONSTAT,
|
|
MII_CIS8201_AUXCONSTAT_INIT);
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = phy_write(phydev, MII_CIS8201_EXT_CON1,
|
|
MII_CIS8201_EXTCON1_INIT);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int cis820x_ack_interrupt(struct phy_device *phydev)
|
|
{
|
|
int err = phy_read(phydev, MII_CIS8201_ISTAT);
|
|
|
|
return (err < 0) ? err : 0;
|
|
}
|
|
|
|
static int cis820x_config_intr(struct phy_device *phydev)
|
|
{
|
|
int err;
|
|
|
|
if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
|
|
err = phy_write(phydev, MII_CIS8201_IMASK,
|
|
MII_CIS8201_IMASK_MASK);
|
|
else
|
|
err = phy_write(phydev, MII_CIS8201_IMASK, 0);
|
|
|
|
return err;
|
|
}
|
|
|
|
/* Cicada 820x */
|
|
static struct phy_driver cis8204_driver = {
|
|
.phy_id = 0x000fc440,
|
|
.name = "Cicada Cis8204",
|
|
.phy_id_mask = 0x000fffc0,
|
|
.features = PHY_GBIT_FEATURES,
|
|
.flags = PHY_HAS_INTERRUPT,
|
|
.config_init = &cis820x_config_init,
|
|
.config_aneg = &genphy_config_aneg,
|
|
.read_status = &genphy_read_status,
|
|
.ack_interrupt = &cis820x_ack_interrupt,
|
|
.config_intr = &cis820x_config_intr,
|
|
.driver = { .owner = THIS_MODULE,},
|
|
};
|
|
|
|
static int __init cis8204_init(void)
|
|
{
|
|
return phy_driver_register(&cis8204_driver);
|
|
}
|
|
|
|
static void __exit cis8204_exit(void)
|
|
{
|
|
phy_driver_unregister(&cis8204_driver);
|
|
}
|
|
|
|
module_init(cis8204_init);
|
|
module_exit(cis8204_exit);
|