projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| c74b2108 SK |
1 | /* |
| 2 | * Intel LXT971/LXT972 PHY Driver for TI DaVinci | |
| 3 | * (TMS320DM644x) based boards. | |
| 4 | * | |
| 5 | * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> | |
| 6 | * | |
| 7 | * -------------------------------------------------------- | |
| 8 | * | |
| 9 | * See file CREDITS for list of people who contributed to this | |
| 10 | * project. | |
| 11 | * | |
| 12 | * This program is free software; you can redistribute it and/or | |
| 13 | * modify it under the terms of the GNU General Public License as | |
| 14 | * published by the Free Software Foundation; either version 2 of | |
| 15 | * the License, or (at your option) any later version. | |
| 16 | * | |
| 17 | * This program is distributed in the hope that it will be useful, | |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | * GNU General Public License for more details. | |
| 21 | * | |
| 22 | * You should have received a copy of the GNU General Public License | |
| 23 | * along with this program; if not, write to the Free Software | |
| 24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 25 | * MA 02111-1307 USA | |
| 26 | */ | |
| 27 | ||
| 28 | #include <common.h> | |
| 29 | #include <net.h> | |
| 30 | #include <lxt971a.h> | |
| 31 | #include <asm/arch/emac_defs.h> | |
| 32 | ||
| 33 | #ifdef CONFIG_DRIVER_TI_EMAC | |
| 34 | ||
| 35 | #ifdef CONFIG_CMD_NET | |
| 36 | ||
| 37 | int lxt972_is_phy_connected(int phy_addr) | |
| 38 | { | |
| 39 | u_int16_t id1, id2; | |
| 40 | ||
| 41 | if (!dm644x_eth_phy_read(phy_addr, PHY_COMMON_ID1, &id1)) | |
| 42 | return(0); | |
| 43 | if (!dm644x_eth_phy_read(phy_addr, PHY_COMMON_ID2, &id2)) | |
| 44 | return(0); | |
| 45 | ||
| 46 | if ((id1 == (0x0013)) && ((id2 & 0xfff0) == 0x78e0)) | |
| 47 | return(1); | |
| 48 | ||
| 49 | return(0); | |
| 50 | } | |
| 51 | ||
| 52 | int lxt972_get_link_speed(int phy_addr) | |
| 53 | { | |
| 54 | u_int16_t stat1, tmp; | |
| 55 | volatile emac_regs* emac = (emac_regs *)EMAC_BASE_ADDR; | |
| 56 | ||
| 57 | if (!dm644x_eth_phy_read(phy_addr, PHY_LXT971_STAT2, &stat1)) | |
| 58 | return(0); | |
| 59 | ||
| 60 | if (!(stat1 & PHY_LXT971_STAT2_LINK)) /* link up? */ | |
| 61 | return(0); | |
| 62 | ||
| 63 | if (!dm644x_eth_phy_read(phy_addr, PHY_LXT971_DIG_CFG, &tmp)) | |
| 64 | return(0); | |
| 65 | ||
| 66 | tmp |= PHY_LXT971_DIG_CFG_MII_DRIVE; | |
| 67 | ||
| 68 | dm644x_eth_phy_write(phy_addr, PHY_LXT971_DIG_CFG, tmp); | |
| 69 | /* Read back */ | |
| 70 | if (!dm644x_eth_phy_read(phy_addr, PHY_LXT971_DIG_CFG, &tmp)) | |
| 71 | return(0); | |
| 72 | ||
| 73 | ||
| 74 | /* Speed doesn't matter, there is no setting for it in EMAC... */ | |
| 75 | if (stat1 & PHY_LXT971_STAT2_100BTX) { | |
| 76 | if (stat1 & PHY_LXT971_STAT2_DUPLEX_MODE) { | |
| 77 | /* set DM644x EMAC for Full Duplex */ | |
| 78 | emac->MACCONTROL = EMAC_MACCONTROL_MIIEN_ENABLE | EMAC_MACCONTROL_FULLDUPLEX_ENABLE; | |
| 79 | } else { | |
| 80 | /*set DM644x EMAC for Half Duplex */ | |
| 81 | emac->MACCONTROL = EMAC_MACCONTROL_MIIEN_ENABLE; | |
| 82 | } | |
| 83 | ||
| 84 | return(1); | |
| 85 | } else { | |
| 86 | if (stat1 & PHY_LXT971_STAT2_DUPLEX_MODE) { | |
| 87 | /* set DM644x EMAC for Full Duplex */ | |
| 88 | emac->MACCONTROL = EMAC_MACCONTROL_MIIEN_ENABLE | EMAC_MACCONTROL_FULLDUPLEX_ENABLE; | |
| 89 | } else { | |
| 90 | /*set DM644x EMAC for Half Duplex */ | |
| 91 | emac->MACCONTROL = EMAC_MACCONTROL_MIIEN_ENABLE; | |
| 92 | } | |
| 93 | ||
| 94 | return(1); | |
| 95 | } | |
| 96 | ||
| 97 | return(0); | |
| 98 | } | |
| 99 | ||
| 100 | ||
| 101 | int lxt972_init_phy(int phy_addr) | |
| 102 | { | |
| 103 | int ret = 1; | |
| 104 | ||
| 105 | if (!lxt972_get_link_speed(phy_addr)) { | |
| 106 | /* Try another time */ | |
| 107 | ret = lxt972_get_link_speed(phy_addr); | |
| 108 | } | |
| 109 | ||
| 110 | /* Disable PHY Interrupts */ | |
| 111 | dm644x_eth_phy_write(phy_addr, PHY_LXT971_INT_ENABLE, 0); | |
| 112 | ||
| 113 | return(ret); | |
| 114 | } | |
| 115 | ||
| 116 | ||
| 117 | int lxt972_auto_negotiate(int phy_addr) | |
| 118 | { | |
| 119 | u_int16_t tmp; | |
| 120 | ||
| 121 | ||
| 122 | if (!dm644x_eth_phy_read(phy_addr, PHY_COMMON_CTRL, &tmp)) | |
| 123 | return(0); | |
| 124 | ||
| 125 | /* Restart Auto_negotiation */ | |
| 126 | tmp |= PHY_COMMON_CTRL_RES_AUTO; | |
| 127 | dm644x_eth_phy_write(phy_addr, PHY_COMMON_CTRL, tmp); | |
| 128 | ||
| 129 | /*check AutoNegotiate complete */ | |
| 130 | udelay (10000); | |
| 131 | if (!dm644x_eth_phy_read(phy_addr, PHY_COMMON_STAT, &tmp)) | |
| 132 | return(0); | |
| 133 | ||
| 134 | if (!(tmp & PHY_COMMON_STAT_AN_COMP)) | |
| 135 | return(0); | |
| 136 | ||
| 137 | return (lxt972_get_link_speed(phy_addr)); | |
| 138 | } | |
| 139 | ||
| 140 | #endif /* CONFIG_CMD_NET */ | |
| 141 | ||
| 142 | #endif /* CONFIG_DRIVER_ETHER */ |