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// SPDX-License-Identifier: GPL-2.0+
/*
* National Semiconductor PHY drivers
*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
* author Andy Fleming
*/
#include <phy.h>
/* NatSemi DP83630 */
#define DP83630_PHY_PAGESEL_REG 0x13
#define DP83630_PHY_PTP_COC_REG 0x14
#define DP83630_PHY_PTP_CLKOUT_EN (1<<15)
#define DP83630_PHY_RBR_REG 0x17
static int dp83630_config(struct phy_device *phydev)
{
int ptp_coc_reg;
phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
phy_write(phydev, MDIO_DEVAD_NONE, DP83630_PHY_PAGESEL_REG, 0x6);
ptp_coc_reg = phy_read(phydev, MDIO_DEVAD_NONE,
DP83630_PHY_PTP_COC_REG);
ptp_coc_reg &= ~DP83630_PHY_PTP_CLKOUT_EN;
phy_write(phydev, MDIO_DEVAD_NONE, DP83630_PHY_PTP_COC_REG,
ptp_coc_reg);
phy_write(phydev, MDIO_DEVAD_NONE, DP83630_PHY_PAGESEL_REG, 0);
genphy_config_aneg(phydev);
return 0;
}
static struct phy_driver DP83630_driver = {
.name = "NatSemi DP83630",
.uid = 0x20005ce1,
.mask = 0xfffffff0,
.features = PHY_BASIC_FEATURES,
.config = &dp83630_config,
.startup = &genphy_startup,
.shutdown = &genphy_shutdown,
};
/* DP83865 Link and Auto-Neg Status Register */
#define MIIM_DP83865_LANR 0x11
#define MIIM_DP83865_SPD_MASK 0x0018
#define MIIM_DP83865_SPD_1000 0x0010
#define MIIM_DP83865_SPD_100 0x0008
#define MIIM_DP83865_DPX_FULL 0x0002
/* NatSemi DP83865 */
static int dp838xx_config(struct phy_device *phydev)
{
phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
genphy_config_aneg(phydev);
return 0;
}
static int dp83865_parse_status(struct phy_device *phydev)
{
int mii_reg;
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_DP83865_LANR);
switch (mii_reg & MIIM_DP83865_SPD_MASK) {
case MIIM_DP83865_SPD_1000:
phydev->speed = SPEED_1000;
break;
case MIIM_DP83865_SPD_100:
phydev->speed = SPEED_100;
break;
default:
phydev->speed = SPEED_10;
break;
}
if (mii_reg & MIIM_DP83865_DPX_FULL)
phydev->duplex = DUPLEX_FULL;
else
phydev->duplex = DUPLEX_HALF;
return 0;
}
static int dp83865_startup(struct phy_device *phydev)
{
int ret;
ret = genphy_update_link(phydev);
if (ret)
return ret;
return dp83865_parse_status(phydev);
}
static struct phy_driver DP83865_driver = {
.name = "NatSemi DP83865",
.uid = 0x20005c70,
.mask = 0xfffffff0,
.features = PHY_GBIT_FEATURES,
.config = &dp838xx_config,
.startup = &dp83865_startup,
.shutdown = &genphy_shutdown,
};
/* NatSemi DP83848 */
static int dp83848_parse_status(struct phy_device *phydev)
{
int mii_reg;
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMSR);
if(mii_reg & (BMSR_100FULL | BMSR_100HALF)) {
phydev->speed = SPEED_100;
} else {
phydev->speed = SPEED_10;
}
if (mii_reg & (BMSR_10FULL | BMSR_100FULL)) {
phydev->duplex = DUPLEX_FULL;
} else {
phydev->duplex = DUPLEX_HALF;
}
return 0;
}
static int dp83848_startup(struct phy_device *phydev)
{
int ret;
ret = genphy_update_link(phydev);
if (ret)
return ret;
return dp83848_parse_status(phydev);
}
static struct phy_driver DP83848_driver = {
.name = "NatSemi DP83848",
.uid = 0x20005c90,
.mask = 0x2000ff90,
.features = PHY_BASIC_FEATURES,
.config = &dp838xx_config,
.startup = &dp83848_startup,
.shutdown = &genphy_shutdown,
};
int phy_natsemi_init(void)
{
phy_register(&DP83630_driver);
phy_register(&DP83865_driver);
phy_register(&DP83848_driver);
return 0;
}
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