/*
|
* LXT PHY drivers
|
*
|
* SPDX-License-Identifier: GPL-2.0+
|
*
|
* 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)
|
{
|
int ret;
|
|
ret = genphy_update_link(phydev);
|
if (ret)
|
return ret;
|
|
return lxt971_parse_status(phydev);
|
}
|
|
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;
|
}
|
