linux_dsm_epyc7002/drivers/net/phy/cicada.c
Uwe Kleine-König cf93c94581 net/phy: fix many "defined but unused" warnings
MODULE_DEVICE_TABLE only expands to something if it's compiled
for a module.  So when building-in support for the phys, the
mdio_device_id tables are unused.  Marking them with __maybe_unused
fixes the following warnings:

	drivers/net/phy/bcm63xx.c:134: warning: 'bcm63xx_tbl' defined but not used
	drivers/net/phy/broadcom.c:933: warning: 'broadcom_tbl' defined but not used
	drivers/net/phy/cicada.c:162: warning: 'cicada_tbl' defined but not used
	drivers/net/phy/davicom.c:222: warning: 'davicom_tbl' defined but not used
	drivers/net/phy/et1011c.c:114: warning: 'et1011c_tbl' defined but not used
	drivers/net/phy/icplus.c:137: warning: 'icplus_tbl' defined but not used
	drivers/net/phy/lxt.c:226: warning: 'lxt_tbl' defined but not used
	drivers/net/phy/marvell.c:724: warning: 'marvell_tbl' defined but not used
	drivers/net/phy/micrel.c:234: warning: 'micrel_tbl' defined but not used
	drivers/net/phy/national.c:154: warning: 'ns_tbl' defined but not used
	drivers/net/phy/qsemi.c:141: warning: 'qs6612_tbl' defined but not used
	drivers/net/phy/realtek.c:82: warning: 'realtek_tbl' defined but not used
	drivers/net/phy/smsc.c:257: warning: 'smsc_tbl' defined but not used
	drivers/net/phy/ste10Xp.c:135: warning: 'ste10Xp_tbl' defined but not used
	drivers/net/phy/vitesse.c:195: warning: 'vitesse_tbl' defined but not used

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-05 00:34:29 -07:00

169 lines
4.0 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/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/unistd.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/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 8201, a.k.a Vitesse VSC8201 */
static struct phy_driver cis8201_driver = {
.phy_id = 0x000fc410,
.name = "Cicada Cis8201",
.phy_id_mask = 0x000ffff0,
.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,},
};
/* Cicada 8204 */
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 cicada_init(void)
{
int ret;
ret = phy_driver_register(&cis8204_driver);
if (ret)
goto err1;
ret = phy_driver_register(&cis8201_driver);
if (ret)
goto err2;
return 0;
err2:
phy_driver_unregister(&cis8204_driver);
err1:
return ret;
}
static void __exit cicada_exit(void)
{
phy_driver_unregister(&cis8204_driver);
phy_driver_unregister(&cis8201_driver);
}
module_init(cicada_init);
module_exit(cicada_exit);
static struct mdio_device_id __maybe_unused cicada_tbl[] = {
{ 0x000fc410, 0x000ffff0 },
{ 0x000fc440, 0x000fffc0 },
{ }
};
MODULE_DEVICE_TABLE(mdio, cicada_tbl);