linux/drivers/net/phy/et1011c.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

120 lines
2.9 KiB
C

/*
* drivers/net/phy/et1011c.c
*
* Driver for LSI ET1011C PHYs
*
* Author: Chaithrika U S
*
* Copyright (c) 2008 Texas Instruments
*
* 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 <linux/io.h>
#include <linux/uaccess.h>
#include <asm/irq.h>
#define ET1011C_STATUS_REG (0x1A)
#define ET1011C_CONFIG_REG (0x16)
#define ET1011C_SPEED_MASK (0x0300)
#define ET1011C_GIGABIT_SPEED (0x0200)
#define ET1011C_TX_FIFO_MASK (0x3000)
#define ET1011C_TX_FIFO_DEPTH_8 (0x0000)
#define ET1011C_TX_FIFO_DEPTH_16 (0x1000)
#define ET1011C_INTERFACE_MASK (0x0007)
#define ET1011C_GMII_INTERFACE (0x0002)
#define ET1011C_SYS_CLK_EN (0x01 << 4)
MODULE_DESCRIPTION("LSI ET1011C PHY driver");
MODULE_AUTHOR("Chaithrika U S");
MODULE_LICENSE("GPL");
static int et1011c_config_aneg(struct phy_device *phydev)
{
int ctl = 0;
ctl = phy_read(phydev, MII_BMCR);
if (ctl < 0)
return ctl;
ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_SPEED1000 |
BMCR_ANENABLE);
/* First clear the PHY */
phy_write(phydev, MII_BMCR, ctl | BMCR_RESET);
return genphy_config_aneg(phydev);
}
static int et1011c_read_status(struct phy_device *phydev)
{
int ret;
u32 val;
static int speed;
ret = genphy_read_status(phydev);
if (speed != phydev->speed) {
speed = phydev->speed;
val = phy_read(phydev, ET1011C_STATUS_REG);
if ((val & ET1011C_SPEED_MASK) ==
ET1011C_GIGABIT_SPEED) {
val = phy_read(phydev, ET1011C_CONFIG_REG);
val &= ~ET1011C_TX_FIFO_MASK;
phy_write(phydev, ET1011C_CONFIG_REG, val\
| ET1011C_GMII_INTERFACE\
| ET1011C_SYS_CLK_EN\
| ET1011C_TX_FIFO_DEPTH_16);
}
}
return ret;
}
static struct phy_driver et1011c_driver = {
.phy_id = 0x0282f014,
.name = "ET1011C",
.phy_id_mask = 0xfffffff0,
.features = (PHY_BASIC_FEATURES | SUPPORTED_1000baseT_Full),
.flags = PHY_POLL,
.config_aneg = et1011c_config_aneg,
.read_status = et1011c_read_status,
.driver = { .owner = THIS_MODULE,},
};
static int __init et1011c_init(void)
{
return phy_driver_register(&et1011c_driver);
}
static void __exit et1011c_exit(void)
{
phy_driver_unregister(&et1011c_driver);
}
module_init(et1011c_init);
module_exit(et1011c_exit);
static struct mdio_device_id __maybe_unused et1011c_tbl[] = {
{ 0x0282f014, 0xfffffff0 },
{ }
};
MODULE_DEVICE_TABLE(mdio, et1011c_tbl);