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/*
* (C) Copyright 2010
* Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <miiphy.h>
#include <asm/io.h>
static int io_bb_mii_init(struct bb_miiphy_bus *bus)
{
return 0;
}
static int io_bb_mdio_active(struct bb_miiphy_bus *bus)
{
out_be32((void *)GPIO0_TCR,
in_be32((void *)GPIO0_TCR) | CONFIG_SYS_MDIO_PIN);
return 0;
}
static int io_bb_mdio_tristate(struct bb_miiphy_bus *bus)
{
out_be32((void *)GPIO0_TCR,
in_be32((void *)GPIO0_TCR) & ~CONFIG_SYS_MDIO_PIN);
return 0;
}
static int io_bb_set_mdio(struct bb_miiphy_bus *bus, int v)
{
if (v)
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) | CONFIG_SYS_MDIO_PIN);
else
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_MDIO_PIN);
return 0;
}
static int io_bb_get_mdio(struct bb_miiphy_bus *bus, int *v)
{
*v = ((in_be32((void *)GPIO0_IR) & CONFIG_SYS_MDIO_PIN) != 0);
return 0;
}
static int io_bb_set_mdc(struct bb_miiphy_bus *bus, int v)
{
if (v)
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) | CONFIG_SYS_MDC_PIN);
else
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_MDC_PIN);
return 0;
}
static int io_bb_delay(struct bb_miiphy_bus *bus)
{
udelay(1);
return 0;
}
struct bb_miiphy_bus bb_miiphy_buses[] = {
{
.name = CONFIG_SYS_GBIT_MII_BUSNAME,
.init = io_bb_mii_init,
.mdio_active = io_bb_mdio_active,
.mdio_tristate = io_bb_mdio_tristate,
.set_mdio = io_bb_set_mdio,
.get_mdio = io_bb_get_mdio,
.set_mdc = io_bb_set_mdc,
.delay = io_bb_delay,
}
};
int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) /
sizeof(bb_miiphy_buses[0]);
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