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![Andrew Lunn](/assets/img/avatar_default.png)
Rather than have each driver set the driver owner field, do it once in the core code. This will also help with later changes, when the device structure will move. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
203 lines
4.8 KiB
C
203 lines
4.8 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/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/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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#define MII_DM9161_SCR 0x10
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#define MII_DM9161_SCR_INIT 0x0610
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#define MII_DM9161_SCR_RMII 0x0100
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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, temp;
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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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switch (phydev->interface) {
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case PHY_INTERFACE_MODE_MII:
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temp = MII_DM9161_SCR_INIT;
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break;
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case PHY_INTERFACE_MODE_RMII:
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temp = MII_DM9161_SCR_INIT | MII_DM9161_SCR_RMII;
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break;
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default:
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return -EINVAL;
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}
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/* Do not bypass the scrambler/descrambler */
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err = phy_write(phydev, MII_DM9161_SCR, temp);
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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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return phy_write(phydev, MII_BMCR, BMCR_ANENABLE);
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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 dm91xx_driver[] = {
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{
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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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.flags = PHY_HAS_INTERRUPT,
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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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.ack_interrupt = dm9161_ack_interrupt,
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.config_intr = dm9161_config_intr,
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}, {
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.phy_id = 0x0181b8b0,
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.name = "Davicom DM9161B/C",
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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_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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.ack_interrupt = dm9161_ack_interrupt,
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.config_intr = dm9161_config_intr,
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}, {
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.phy_id = 0x0181b8a0,
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.name = "Davicom DM9161A",
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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_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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.ack_interrupt = dm9161_ack_interrupt,
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.config_intr = dm9161_config_intr,
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}, {
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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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} };
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module_phy_driver(dm91xx_driver);
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static struct mdio_device_id __maybe_unused davicom_tbl[] = {
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{ 0x0181b880, 0x0ffffff0 },
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{ 0x0181b8b0, 0x0ffffff0 },
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{ 0x0181b8a0, 0x0ffffff0 },
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{ 0x00181b80, 0x0ffffff0 },
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{ }
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};
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MODULE_DEVICE_TABLE(mdio, davicom_tbl);
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