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>
195 lines
4.2 KiB
C
195 lines
4.2 KiB
C
/*
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* drivers/net/phy/davicom.c
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*
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* Driver for Davicom 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/config.h>
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#include <linux/kernel.h>
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#include <linux/sched.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/version.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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#define MII_DM9161_SCR 0x10
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#define MII_DM9161_SCR_INIT 0x0610
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/* DM9161 Interrupt Register */
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#define MII_DM9161_INTR 0x15
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#define MII_DM9161_INTR_PEND 0x8000
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#define MII_DM9161_INTR_DPLX_MASK 0x0800
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#define MII_DM9161_INTR_SPD_MASK 0x0400
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#define MII_DM9161_INTR_LINK_MASK 0x0200
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#define MII_DM9161_INTR_MASK 0x0100
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#define MII_DM9161_INTR_DPLX_CHANGE 0x0010
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#define MII_DM9161_INTR_SPD_CHANGE 0x0008
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#define MII_DM9161_INTR_LINK_CHANGE 0x0004
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#define MII_DM9161_INTR_INIT 0x0000
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#define MII_DM9161_INTR_STOP \
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(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
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| MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)
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/* DM9161 10BT Configuration/Status */
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#define MII_DM9161_10BTCSR 0x12
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#define MII_DM9161_10BTCSR_INIT 0x7800
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MODULE_DESCRIPTION("Davicom PHY driver");
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MODULE_AUTHOR("Andy Fleming");
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MODULE_LICENSE("GPL");
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#define DM9161_DELAY 1
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static int dm9161_config_intr(struct phy_device *phydev)
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{
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int temp;
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temp = phy_read(phydev, MII_DM9161_INTR);
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if (temp < 0)
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return temp;
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if(PHY_INTERRUPT_ENABLED == phydev->interrupts )
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temp &= ~(MII_DM9161_INTR_STOP);
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else
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temp |= MII_DM9161_INTR_STOP;
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temp = phy_write(phydev, MII_DM9161_INTR, temp);
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return temp;
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}
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static int dm9161_config_aneg(struct phy_device *phydev)
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{
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int err;
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/* Isolate the PHY */
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err = phy_write(phydev, MII_BMCR, BMCR_ISOLATE);
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if (err < 0)
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return err;
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/* Configure the new settings */
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err = genphy_config_aneg(phydev);
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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 dm9161_config_init(struct phy_device *phydev)
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{
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int err;
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/* Isolate the PHY */
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err = phy_write(phydev, MII_BMCR, BMCR_ISOLATE);
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if (err < 0)
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return err;
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/* Do not bypass the scrambler/descrambler */
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err = phy_write(phydev, MII_DM9161_SCR, MII_DM9161_SCR_INIT);
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if (err < 0)
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return err;
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/* Clear 10BTCSR to default */
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err = phy_write(phydev, MII_DM9161_10BTCSR, MII_DM9161_10BTCSR_INIT);
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if (err < 0)
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return err;
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/* Reconnect the PHY, and enable Autonegotiation */
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err = phy_write(phydev, MII_BMCR, BMCR_ANENABLE);
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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 dm9161_ack_interrupt(struct phy_device *phydev)
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{
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int err = phy_read(phydev, MII_DM9161_INTR);
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return (err < 0) ? err : 0;
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}
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static struct phy_driver dm9161_driver = {
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.phy_id = 0x0181b880,
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.name = "Davicom DM9161E",
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.phy_id_mask = 0x0ffffff0,
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.features = PHY_BASIC_FEATURES,
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.config_init = dm9161_config_init,
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.config_aneg = dm9161_config_aneg,
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.read_status = genphy_read_status,
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.driver = { .owner = THIS_MODULE,},
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};
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static struct phy_driver dm9131_driver = {
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.phy_id = 0x00181b80,
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.name = "Davicom DM9131",
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.phy_id_mask = 0x0ffffff0,
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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 = dm9161_ack_interrupt,
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.config_intr = dm9161_config_intr,
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.driver = { .owner = THIS_MODULE,},
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};
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static int __init davicom_init(void)
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{
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int ret;
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ret = phy_driver_register(&dm9161_driver);
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if (ret)
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goto err1;
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ret = phy_driver_register(&dm9131_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(&dm9161_driver);
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err1:
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return ret;
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}
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static void __exit davicom_exit(void)
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{
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phy_driver_unregister(&dm9161_driver);
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phy_driver_unregister(&dm9131_driver);
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}
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module_init(davicom_init);
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module_exit(davicom_exit);
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