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/*
* LXT PHY drivers
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
* author Andy Fleming
*
*/
#include <phy.h>
/* LXT971 Status 2 registers */
#define MIIM_LXT971_SR2 0x11 /* Status Register 2 */
#define MIIM_LXT971_SR2_SPEED_MASK 0x4200
#define MIIM_LXT971_SR2_10HDX 0x0000 /* 10 Mbit half duplex selected */
#define MIIM_LXT971_SR2_10FDX 0x0200 /* 10 Mbit full duplex selected */
#define MIIM_LXT971_SR2_100HDX 0x4000 /* 100 Mbit half duplex selected */
#define MIIM_LXT971_SR2_100FDX 0x4200 /* 100 Mbit full duplex selected */
/* LXT971 */
static int lxt971_parse_status(struct phy_device *phydev)
{
int mii_reg;
int speed;
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_LXT971_SR2);
speed = mii_reg & MIIM_LXT971_SR2_SPEED_MASK;
switch (speed) {
case MIIM_LXT971_SR2_10HDX:
phydev->speed = SPEED_10;
phydev->duplex = DUPLEX_HALF;
break;
case MIIM_LXT971_SR2_10FDX:
phydev->speed = SPEED_10;
phydev->duplex = DUPLEX_FULL;
break;
case MIIM_LXT971_SR2_100HDX:
phydev->speed = SPEED_100;
phydev->duplex = DUPLEX_HALF;
break;
default:
phydev->speed = SPEED_100;
phydev->duplex = DUPLEX_FULL;
}
return 0;
}
static int lxt971_startup(struct phy_device *phydev)
{
genphy_update_link(phydev);
lxt971_parse_status(phydev);
return 0;
}
static struct phy_driver LXT971_driver = {
.name = "LXT971",
.uid = 0x1378e0,
.mask = 0xfffff0,
.features = PHY_BASIC_FEATURES,
.config = &genphy_config_aneg,
.startup = &lxt971_startup,
.shutdown = &genphy_shutdown,
};
int phy_lxt_init(void)
{
phy_register(&LXT971_driver);
return 0;
}
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