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/*
* (C) Copyright 2010
* Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <miiphy.h>
#include <asm/io.h>
struct io_bb_pinset {
int mdio;
int mdc;
};
static int io_bb_mii_init(struct bb_miiphy_bus *bus)
{
return 0;
}
static int io_bb_mdio_active(struct bb_miiphy_bus *bus)
{
struct io_bb_pinset *pins = bus->priv;
out_be32((void *)GPIO0_TCR,
in_be32((void *)GPIO0_TCR) | pins->mdio);
return 0;
}
static int io_bb_mdio_tristate(struct bb_miiphy_bus *bus)
{
struct io_bb_pinset *pins = bus->priv;
out_be32((void *)GPIO0_TCR,
in_be32((void *)GPIO0_TCR) & ~pins->mdio);
return 0;
}
static int io_bb_set_mdio(struct bb_miiphy_bus *bus, int v)
{
struct io_bb_pinset *pins = bus->priv;
if (v)
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) | pins->mdio);
else
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) & ~pins->mdio);
return 0;
}
static int io_bb_get_mdio(struct bb_miiphy_bus *bus, int *v)
{
struct io_bb_pinset *pins = bus->priv;
*v = ((in_be32((void *)GPIO0_IR) & pins->mdio) != 0);
return 0;
}
static int io_bb_set_mdc(struct bb_miiphy_bus *bus, int v)
{
struct io_bb_pinset *pins = bus->priv;
if (v)
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) | pins->mdc);
else
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) & ~pins->mdc);
return 0;
}
static int io_bb_delay(struct bb_miiphy_bus *bus)
{
udelay(1);
return 0;
}
struct io_bb_pinset io_bb_pinsets[] = {
{
.mdio = CONFIG_SYS_MDIO_PIN,
.mdc = CONFIG_SYS_MDC_PIN,
},
#ifdef CONFIG_SYS_GBIT_MII1_BUSNAME
{
.mdio = CONFIG_SYS_MDIO1_PIN,
.mdc = CONFIG_SYS_MDC1_PIN,
},
#endif
};
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,
.priv = &io_bb_pinsets[0],
},
#ifdef CONFIG_SYS_GBIT_MII1_BUSNAME
{
.name = CONFIG_SYS_GBIT_MII1_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,
.priv = &io_bb_pinsets[1],
},
#endif
};
int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) /
sizeof(bb_miiphy_buses[0]);
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