| Dirk Eibach | 9a13d81 | 2010-10-21 10:50:05 +0200 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2010 |
| 3 | * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <common.h> |
| 25 | #include <miiphy.h> |
| 26 | |
| 27 | #include <asm/io.h> |
| 28 | |
| 29 | static int io_bb_mii_init(struct bb_miiphy_bus *bus) |
| 30 | { |
| 31 | return 0; |
| 32 | } |
| 33 | |
| 34 | static int io_bb_mdio_active(struct bb_miiphy_bus *bus) |
| 35 | { |
| 36 | out_be32((void *)GPIO0_TCR, |
| 37 | in_be32((void *)GPIO0_TCR) | CONFIG_SYS_MDIO_PIN); |
| 38 | |
| 39 | return 0; |
| 40 | } |
| 41 | |
| 42 | static int io_bb_mdio_tristate(struct bb_miiphy_bus *bus) |
| 43 | { |
| 44 | out_be32((void *)GPIO0_TCR, |
| 45 | in_be32((void *)GPIO0_TCR) & ~CONFIG_SYS_MDIO_PIN); |
| 46 | |
| 47 | return 0; |
| 48 | } |
| 49 | |
| 50 | static int io_bb_set_mdio(struct bb_miiphy_bus *bus, int v) |
| 51 | { |
| 52 | if (v) |
| 53 | out_be32((void *)GPIO0_OR, |
| 54 | in_be32((void *)GPIO0_OR) | CONFIG_SYS_MDIO_PIN); |
| 55 | else |
| 56 | out_be32((void *)GPIO0_OR, |
| 57 | in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_MDIO_PIN); |
| 58 | |
| 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | static int io_bb_get_mdio(struct bb_miiphy_bus *bus, int *v) |
| 63 | { |
| 64 | *v = ((in_be32((void *)GPIO0_IR) & CONFIG_SYS_MDIO_PIN) != 0); |
| 65 | |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | static int io_bb_set_mdc(struct bb_miiphy_bus *bus, int v) |
| 70 | { |
| 71 | if (v) |
| 72 | out_be32((void *)GPIO0_OR, |
| 73 | in_be32((void *)GPIO0_OR) | CONFIG_SYS_MDC_PIN); |
| 74 | else |
| 75 | out_be32((void *)GPIO0_OR, |
| 76 | in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_MDC_PIN); |
| 77 | |
| 78 | return 0; |
| 79 | } |
| 80 | |
| 81 | static int io_bb_delay(struct bb_miiphy_bus *bus) |
| 82 | { |
| 83 | udelay(1); |
| 84 | |
| 85 | return 0; |
| 86 | } |
| 87 | |
| 88 | struct bb_miiphy_bus bb_miiphy_buses[] = { |
| 89 | { |
| 90 | .name = CONFIG_SYS_GBIT_MII_BUSNAME, |
| 91 | .init = io_bb_mii_init, |
| 92 | .mdio_active = io_bb_mdio_active, |
| 93 | .mdio_tristate = io_bb_mdio_tristate, |
| 94 | .set_mdio = io_bb_set_mdio, |
| 95 | .get_mdio = io_bb_get_mdio, |
| 96 | .set_mdc = io_bb_set_mdc, |
| 97 | .delay = io_bb_delay, |
| 98 | } |
| 99 | }; |
| 100 | |
| 101 | int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) / |
| 102 | sizeof(bb_miiphy_buses[0]); |