u-boot/board/gdsys/common/miiphybb.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

127 lines
2.4 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2010
* Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
*/
#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]);