1 /* 2 * Teranetics PHY drivers 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation; either version 2 of 7 * the License, or (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write to the Free Software 16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 17 * MA 02111-1307 USA 18 * 19 * Copyright 2010-2011 Freescale Semiconductor, Inc. 20 * author Andy Fleming 21 * 22 */ 23 #include <config.h> 24 #include <phy.h> 25 26 #ifndef CONFIG_PHYLIB_10G 27 #error The Teranetics PHY needs 10G support 28 #endif 29 30 int tn2020_config(struct phy_device *phydev) 31 { 32 if (phydev->port == PORT_FIBRE) { 33 unsigned short restart_an = (MDIO_AN_CTRL1_RESTART | 34 MDIO_AN_CTRL1_ENABLE | 35 MDIO_AN_CTRL1_XNP); 36 37 phy_write(phydev, 30, 93, 2); 38 phy_write(phydev, MDIO_MMD_AN, MDIO_CTRL1, restart_an); 39 } 40 41 return 0; 42 } 43 44 int tn2020_startup(struct phy_device *phydev) 45 { 46 if (phydev->port != PORT_FIBRE) 47 return gen10g_startup(phydev); 48 49 /* 50 * The TN2020 only pretends to support fiber. 51 * It works, but it doesn't look like it works, 52 * so the link status reports no link. 53 */ 54 phydev->link = 1; 55 56 /* For now just lie and say it's 10G all the time */ 57 phydev->speed = SPEED_10000; 58 phydev->duplex = DUPLEX_FULL; 59 60 return 0; 61 } 62 63 struct phy_driver tn2020_driver = { 64 .name = "Teranetics TN2020", 65 .uid = 0x00a19410, 66 .mask = 0xfffffff0, 67 .features = PHY_10G_FEATURES, 68 .mmds = (MDIO_DEVS_PMAPMD | MDIO_DEVS_PCS | 69 MDIO_DEVS_PHYXS | MDIO_DEVS_AN | 70 MDIO_DEVS_VEND1 | MDIO_DEVS_VEND2), 71 .config = &tn2020_config, 72 .startup = &tn2020_startup, 73 .shutdown = &gen10g_shutdown, 74 }; 75 76 int phy_teranetics_init(void) 77 { 78 phy_register(&tn2020_driver); 79 80 return 0; 81 } 82