97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
/*
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* National Semiconductor PHY drivers
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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* Copyright 2010-2011 Freescale Semiconductor, Inc.
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* author Andy Fleming
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*
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*/
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#include <phy.h>
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/* DP83865 Link and Auto-Neg Status Register */
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#define MIIM_DP83865_LANR 0x11
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#define MIIM_DP83865_SPD_MASK 0x0018
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#define MIIM_DP83865_SPD_1000 0x0010
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#define MIIM_DP83865_SPD_100 0x0008
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#define MIIM_DP83865_DPX_FULL 0x0002
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/* NatSemi DP83865 */
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static int dp83865_config(struct phy_device *phydev)
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{
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phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
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genphy_config_aneg(phydev);
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return 0;
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}
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static int dp83865_parse_status(struct phy_device *phydev)
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{
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int mii_reg;
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mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_DP83865_LANR);
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switch (mii_reg & MIIM_DP83865_SPD_MASK) {
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case MIIM_DP83865_SPD_1000:
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phydev->speed = SPEED_1000;
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break;
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case MIIM_DP83865_SPD_100:
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phydev->speed = SPEED_100;
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break;
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default:
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phydev->speed = SPEED_10;
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break;
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}
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if (mii_reg & MIIM_DP83865_DPX_FULL)
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phydev->duplex = DUPLEX_FULL;
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else
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phydev->duplex = DUPLEX_HALF;
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return 0;
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}
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static int dp83865_startup(struct phy_device *phydev)
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{
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genphy_update_link(phydev);
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dp83865_parse_status(phydev);
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return 0;
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}
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static struct phy_driver DP83865_driver = {
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.name = "NatSemi DP83865",
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.uid = 0x20005c70,
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.mask = 0xfffffff0,
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.features = PHY_GBIT_FEATURES,
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.config = &dp83865_config,
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.startup = &dp83865_startup,
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.shutdown = &genphy_shutdown,
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};
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int phy_natsemi_init(void)
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{
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phy_register(&DP83865_driver);
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return 0;
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}
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