273 lines
6.6 KiB
C
273 lines
6.6 KiB
C
|
/*-
|
||
|
|
* Copyright (c) 2017 Ian Lepore <ian@freebsd.org>
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Development sponsored by Microsemi, Inc.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
__FBSDID("$FreeBSD$");
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Microsemi / Vitesse VSC8501 (and similar).
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "opt_platform.h"
|
||
|
|
|
||
|
|
#include <sys/param.h>
|
||
|
|
#include <sys/systm.h>
|
||
|
|
#include <sys/kernel.h>
|
||
|
|
#include <sys/socket.h>
|
||
|
|
#include <sys/errno.h>
|
||
|
|
#include <sys/module.h>
|
||
|
|
#include <sys/bus.h>
|
||
|
|
#include <sys/malloc.h>
|
||
|
|
|
||
|
|
#include <net/if.h>
|
||
|
|
#include <net/if_media.h>
|
||
|
|
|
||
|
|
#include <dev/mii/mii.h>
|
||
|
|
#include <dev/mii/miivar.h>
|
||
|
|
#include "miidevs.h"
|
||
|
|
#include "miibus_if.h"
|
||
|
|
|
||
|
|
#ifdef FDT
|
||
|
|
#include <dev/ofw/openfirm.h>
|
||
|
|
#include <dev/ofw/ofw_bus.h>
|
||
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
||
|
|
#include <dev/mii/mii_fdt.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Vitesse VSC8501 */
|
||
|
|
#define VSC8501_EXTPAGE_REG 0x001f
|
||
|
|
|
||
|
|
#define VSC8501_EXTCTL1_REG 0x0017
|
||
|
|
#define VSC8501_EXTCTL1_RGMII_MODE (1u << 12)
|
||
|
|
|
||
|
|
#define VSC8501_RGMII_CTRL_PAGE 0x02
|
||
|
|
#define VSC8501_RGMII_CTRL_REG 0x14
|
||
|
|
#define VSC8501_RGMII_DELAY_MASK 0x07
|
||
|
|
#define VSC8501_RGMII_DELAY_TXSHIFT 0
|
||
|
|
#define VSC8501_RGMII_DELAY_RXSHIFT 4
|
||
|
|
#define VSC8501_RGMII_RXCLOCK_DISABLE (1u << 11)
|
||
|
|
#define VSC8501_RGMII_RXSWAP (1u << 7)
|
||
|
|
#define VSC8501_RGMII_TXSWAP (1u << 3)
|
||
|
|
#define VSC8501_RGMII_LANESWAP (VSC8501_RGMII_RXSWAP | \
|
||
|
|
VSC8501_RGMII_TXSWAP)
|
||
|
|
|
||
|
|
struct vscphy_softc {
|
||
|
|
mii_softc_t mii_sc;
|
||
|
|
device_t dev;
|
||
|
|
mii_contype_t contype;
|
||
|
|
int rxdelay;
|
||
|
|
int txdelay;
|
||
|
|
bool laneswap;
|
||
|
|
};
|
||
|
|
|
||
|
|
static void vscphy_reset(struct mii_softc *);
|
||
|
|
static int vscphy_service(struct mii_softc *, struct mii_data *, int);
|
||
|
|
|
||
|
|
static const struct mii_phydesc vscphys[] = {
|
||
|
|
MII_PHY_DESC(xxVITESSE, VSC8501),
|
||
|
|
MII_PHY_END
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct mii_phy_funcs vscphy_funcs = {
|
||
|
|
vscphy_service,
|
||
|
|
ukphy_status,
|
||
|
|
vscphy_reset
|
||
|
|
};
|
||
|
|
|
||
|
|
#ifdef FDT
|
||
|
|
static void
|
||
|
|
vscphy_fdt_get_config(struct vscphy_softc *vsc)
|
||
|
|
{
|
||
|
|
mii_fdt_phy_config_t *cfg;
|
||
|
|
pcell_t val;
|
||
|
|
|
||
|
|
cfg = mii_fdt_get_config(vsc->dev);
|
||
|
|
vsc->contype = cfg->con_type;
|
||
|
|
vsc->laneswap = (cfg->flags & MIIF_FDT_LANE_SWAP) &&
|
||
|
|
!(cfg->flags & MIIF_FDT_NO_LANE_SWAP);
|
||
|
|
if (OF_getencprop(cfg->phynode, "rx-delay", &val, sizeof(val)) > 0)
|
||
|
|
vsc->rxdelay = val;
|
||
|
|
if (OF_getencprop(cfg->phynode, "tx-delay", &val, sizeof(val)) > 0)
|
||
|
|
vsc->txdelay = val;
|
||
|
|
mii_fdt_free_config(cfg);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static inline int
|
||
|
|
vscphy_read(struct vscphy_softc *sc, u_int reg)
|
||
|
|
{
|
||
|
|
u_int val;
|
||
|
|
|
||
|
|
val = PHY_READ(&sc->mii_sc, reg);
|
||
|
|
return (val);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void
|
||
|
|
vscphy_write(struct vscphy_softc *sc, u_int reg, u_int val)
|
||
|
|
{
|
||
|
|
|
||
|
|
PHY_WRITE(&sc->mii_sc, reg, val);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
vsc8501_setup_rgmii(struct vscphy_softc *vsc)
|
||
|
|
{
|
||
|
|
int reg;
|
||
|
|
|
||
|
|
vscphy_write(vsc, VSC8501_EXTPAGE_REG, VSC8501_RGMII_CTRL_PAGE);
|
||
|
|
|
||
|
|
reg = vscphy_read(vsc, VSC8501_RGMII_CTRL_REG);
|
||
|
|
reg &= ~VSC8501_RGMII_RXCLOCK_DISABLE;
|
||
|
|
reg &= ~VSC8501_RGMII_LANESWAP;
|
||
|
|
reg &= ~(VSC8501_RGMII_DELAY_MASK << VSC8501_RGMII_DELAY_TXSHIFT);
|
||
|
|
reg &= ~(VSC8501_RGMII_DELAY_MASK << VSC8501_RGMII_DELAY_RXSHIFT);
|
||
|
|
if (vsc->laneswap)
|
||
|
|
reg |= VSC8501_RGMII_LANESWAP;
|
||
|
|
if (vsc->contype == MII_CONTYPE_RGMII_ID ||
|
||
|
|
vsc->contype == MII_CONTYPE_RGMII_TXID) {
|
||
|
|
reg |= vsc->txdelay << VSC8501_RGMII_DELAY_TXSHIFT;
|
||
|
|
}
|
||
|
|
if (vsc->contype == MII_CONTYPE_RGMII_ID ||
|
||
|
|
vsc->contype == MII_CONTYPE_RGMII_RXID) {
|
||
|
|
reg |= vsc->rxdelay << VSC8501_RGMII_DELAY_RXSHIFT;
|
||
|
|
}
|
||
|
|
vscphy_write(vsc, VSC8501_RGMII_CTRL_REG, reg);
|
||
|
|
|
||
|
|
vscphy_write(vsc, VSC8501_EXTPAGE_REG, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
vsc8501_reset(struct vscphy_softc *vsc)
|
||
|
|
{
|
||
|
|
int reg;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Must set whether the mac<->phy connection is RGMII first; changes to
|
||
|
|
* that bit take effect only after a softreset.
|
||
|
|
*/
|
||
|
|
reg = vscphy_read(vsc, VSC8501_EXTCTL1_REG);
|
||
|
|
if (mii_contype_is_rgmii(vsc->contype))
|
||
|
|
reg |= VSC8501_EXTCTL1_RGMII_MODE;
|
||
|
|
else
|
||
|
|
reg &= ~VSC8501_EXTCTL1_RGMII_MODE;
|
||
|
|
vscphy_write(vsc, VSC8501_EXTCTL1_REG, reg);
|
||
|
|
|
||
|
|
mii_phy_reset(&vsc->mii_sc);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Setup rgmii control register if necessary, after softreset.
|
||
|
|
*/
|
||
|
|
if (mii_contype_is_rgmii(vsc->contype))
|
||
|
|
vsc8501_setup_rgmii(vsc);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
vscphy_reset(struct mii_softc *sc)
|
||
|
|
{
|
||
|
|
struct vscphy_softc *vsc = (struct vscphy_softc *)sc;
|
||
|
|
|
||
|
|
switch (sc->mii_mpd_model) {
|
||
|
|
case MII_MODEL_xxVITESSE_VSC8501:
|
||
|
|
vsc8501_reset(vsc);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
mii_phy_reset(sc);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
vscphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd)
|
||
|
|
{
|
||
|
|
|
||
|
|
switch (cmd) {
|
||
|
|
case MII_POLLSTAT:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MII_MEDIACHG:
|
||
|
|
mii_phy_setmedia(sc);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case MII_TICK:
|
||
|
|
if (mii_phy_tick(sc) == EJUSTRETURN)
|
||
|
|
return (0);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Update the media status. */
|
||
|
|
PHY_STATUS(sc);
|
||
|
|
|
||
|
|
/* Callback if something changed. */
|
||
|
|
mii_phy_update(sc, cmd);
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
vscphy_probe(device_t dev)
|
||
|
|
{
|
||
|
|
|
||
|
|
return (mii_phy_dev_probe(dev, vscphys, BUS_PROBE_DEFAULT));
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
vscphy_attach(device_t dev)
|
||
|
|
{
|
||
|
|
struct vscphy_softc *vsc;
|
||
|
|
|
||
|
|
vsc = device_get_softc(dev);
|
||
|
|
vsc->dev = dev;
|
||
|
|
|
||
|
|
#ifdef FDT
|
||
|
|
vscphy_fdt_get_config(vsc);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
mii_phy_dev_attach(dev, MIIF_NOMANPAUSE, &vscphy_funcs, 1);
|
||
|
|
mii_phy_setmedia(&vsc->mii_sc);
|
||
|
|
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static device_method_t vscphy_methods[] = {
|
||
|
|
/* device interface */
|
||
|
|
DEVMETHOD(device_probe, vscphy_probe),
|
||
|
|
DEVMETHOD(device_attach, vscphy_attach),
|
||
|
|
DEVMETHOD(device_detach, mii_phy_detach),
|
||
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
||
|
|
DEVMETHOD_END
|
||
|
|
};
|
||
|
|
|
||
|
|
static devclass_t vscphy_devclass;
|
||
|
|
|
||
|
|
static driver_t vscphy_driver = {
|
||
|
|
"vscphy",
|
||
|
|
vscphy_methods,
|
||
|
|
sizeof(struct vscphy_softc)
|
||
|
|
};
|
||
|
|
|
||
|
|
DRIVER_MODULE(vscphy, miibus, vscphy_driver, vscphy_devclass, 0, 0);
|