177 lines
3.8 KiB
C
177 lines
3.8 KiB
C
/*
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* drivers/net/phy/lxt.c
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*
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* Driver for Intel LXT PHYs
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*
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* Author: Andy Fleming
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*
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* Copyright (c) 2004 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/errno.h>
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#include <linux/unistd.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/skbuff.h>
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#include <linux/spinlock.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/mii.h>
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#include <linux/ethtool.h>
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#include <linux/phy.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/uaccess.h>
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/* The Level one LXT970 is used by many boards */
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#define MII_LXT970_IER 17 /* Interrupt Enable Register */
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#define MII_LXT970_IER_IEN 0x0002
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#define MII_LXT970_ISR 18 /* Interrupt Status Register */
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#define MII_LXT970_CONFIG 19 /* Configuration Register */
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/* ------------------------------------------------------------------------- */
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/* The Level one LXT971 is used on some of my custom boards */
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/* register definitions for the 971 */
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#define MII_LXT971_IER 18 /* Interrupt Enable Register */
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#define MII_LXT971_IER_IEN 0x00f2
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#define MII_LXT971_ISR 19 /* Interrupt Status Register */
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MODULE_DESCRIPTION("Intel LXT PHY driver");
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MODULE_AUTHOR("Andy Fleming");
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MODULE_LICENSE("GPL");
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static int lxt970_ack_interrupt(struct phy_device *phydev)
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{
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int err;
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err = phy_read(phydev, MII_BMSR);
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if (err < 0)
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return err;
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err = phy_read(phydev, MII_LXT970_ISR);
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if (err < 0)
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return err;
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return 0;
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}
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static int lxt970_config_intr(struct phy_device *phydev)
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{
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int err;
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if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
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err = phy_write(phydev, MII_LXT970_IER, MII_LXT970_IER_IEN);
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else
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err = phy_write(phydev, MII_LXT970_IER, 0);
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return err;
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}
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static int lxt970_config_init(struct phy_device *phydev)
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{
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int err;
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err = phy_write(phydev, MII_LXT970_CONFIG, 0);
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return err;
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}
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static int lxt971_ack_interrupt(struct phy_device *phydev)
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{
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int err = phy_read(phydev, MII_LXT971_ISR);
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if (err < 0)
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return err;
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return 0;
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}
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static int lxt971_config_intr(struct phy_device *phydev)
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{
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int err;
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if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
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err = phy_write(phydev, MII_LXT971_IER, MII_LXT971_IER_IEN);
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else
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err = phy_write(phydev, MII_LXT971_IER, 0);
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return err;
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}
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static struct phy_driver lxt970_driver = {
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.phy_id = 0x78100000,
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.name = "LXT970",
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.phy_id_mask = 0xfffffff0,
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.features = PHY_BASIC_FEATURES,
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.flags = PHY_HAS_INTERRUPT,
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.config_init = lxt970_config_init,
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.config_aneg = genphy_config_aneg,
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.read_status = genphy_read_status,
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.ack_interrupt = lxt970_ack_interrupt,
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.config_intr = lxt970_config_intr,
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.driver = { .owner = THIS_MODULE,},
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};
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static struct phy_driver lxt971_driver = {
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.phy_id = 0x001378e0,
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.name = "LXT971",
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.phy_id_mask = 0xfffffff0,
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.features = PHY_BASIC_FEATURES,
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.flags = PHY_HAS_INTERRUPT,
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.config_aneg = genphy_config_aneg,
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.read_status = genphy_read_status,
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.ack_interrupt = lxt971_ack_interrupt,
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.config_intr = lxt971_config_intr,
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.driver = { .owner = THIS_MODULE,},
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};
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static int __init lxt_init(void)
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{
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int ret;
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ret = phy_driver_register(&lxt970_driver);
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if (ret)
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goto err1;
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ret = phy_driver_register(&lxt971_driver);
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if (ret)
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goto err2;
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return 0;
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err2:
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phy_driver_unregister(&lxt970_driver);
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err1:
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return ret;
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}
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static void __exit lxt_exit(void)
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{
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phy_driver_unregister(&lxt970_driver);
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phy_driver_unregister(&lxt971_driver);
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}
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module_init(lxt_init);
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module_exit(lxt_exit);
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