309 lines
7.7 KiB
C
309 lines
7.7 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright © 2021-2022 Bjoern A. Zeeb
|
|
*
|
|
* 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>
|
|
#include <sys/param.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/module.h>
|
|
#include <sys/endian.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <contrib/dev/acpica/include/acpi.h>
|
|
#include <dev/acpica/acpivar.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_var.h>
|
|
#include <net/if_media.h>
|
|
|
|
#include <dev/mii/mii.h>
|
|
#include <dev/mii/miivar.h>
|
|
|
|
#include "memac_mdio.h"
|
|
#include "memac_mdio_if.h"
|
|
#include "acpi_bus_if.h"
|
|
#include "miibus_if.h"
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
struct memacphy_softc_acpi {
|
|
struct memacphy_softc_common scc;
|
|
int uid;
|
|
uint64_t phy_channel;
|
|
char compatible[64];
|
|
};
|
|
|
|
static void
|
|
memacphy_acpi_miibus_statchg(device_t dev)
|
|
{
|
|
struct memacphy_softc_acpi *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
memacphy_miibus_statchg(&sc->scc);
|
|
}
|
|
|
|
static int
|
|
memacphy_acpi_set_ni_dev(device_t dev, device_t nidev)
|
|
{
|
|
struct memacphy_softc_acpi *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
return (memacphy_set_ni_dev(&sc->scc, nidev));
|
|
}
|
|
|
|
static int
|
|
memacphy_acpi_get_phy_loc(device_t dev, int *phy_loc)
|
|
{
|
|
struct memacphy_softc_acpi *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
return (memacphy_get_phy_loc(&sc->scc, phy_loc));
|
|
}
|
|
|
|
static int
|
|
memacphy_acpi_probe(device_t dev)
|
|
{
|
|
|
|
device_set_desc(dev, "MEMAC PHY (acpi)");
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
memacphy_acpi_attach(device_t dev)
|
|
{
|
|
struct memacphy_softc_acpi *sc;
|
|
ACPI_HANDLE h;
|
|
ssize_t s;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->scc.dev = dev;
|
|
h = acpi_get_handle(dev);
|
|
|
|
s = acpi_GetInteger(h, "_UID", &sc->uid);
|
|
if (ACPI_FAILURE(s)) {
|
|
device_printf(dev, "Cannot get '_UID' property: %zd\n", s);
|
|
return (ENXIO);
|
|
}
|
|
|
|
s = device_get_property(dev, "phy-channel",
|
|
&sc->phy_channel, sizeof(sc->phy_channel), DEVICE_PROP_UINT64);
|
|
if (s != -1)
|
|
sc->scc.phy = sc->phy_channel;
|
|
else
|
|
sc->scc.phy = -1;
|
|
s = device_get_property(dev, "compatible",
|
|
sc->compatible, sizeof(sc->compatible), DEVICE_PROP_ANY);
|
|
|
|
if (bootverbose)
|
|
device_printf(dev, "UID %#04x phy-channel %ju compatible '%s' phy %u\n",
|
|
sc->uid, sc->phy_channel,
|
|
sc->compatible[0] != '\0' ? sc->compatible : "", sc->scc.phy);
|
|
|
|
if (sc->scc.phy == -1)
|
|
return (ENXIO);
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t memacphy_acpi_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, memacphy_acpi_probe),
|
|
DEVMETHOD(device_attach, memacphy_acpi_attach),
|
|
DEVMETHOD(device_detach, bus_generic_detach),
|
|
|
|
/* MII interface */
|
|
DEVMETHOD(miibus_readreg, memacphy_miibus_readreg),
|
|
DEVMETHOD(miibus_writereg, memacphy_miibus_writereg),
|
|
DEVMETHOD(miibus_statchg, memacphy_acpi_miibus_statchg),
|
|
|
|
/* memac */
|
|
DEVMETHOD(memac_mdio_set_ni_dev, memacphy_acpi_set_ni_dev),
|
|
DEVMETHOD(memac_mdio_get_phy_loc, memacphy_acpi_get_phy_loc),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
DEFINE_CLASS_0(memacphy_acpi, memacphy_acpi_driver, memacphy_acpi_methods,
|
|
sizeof(struct memacphy_softc_acpi));
|
|
|
|
EARLY_DRIVER_MODULE(memacphy_acpi, memac_mdio_acpi, memacphy_acpi_driver, 0, 0,
|
|
BUS_PASS_SUPPORTDEV);
|
|
DRIVER_MODULE(miibus, memacphy_acpi, miibus_driver, 0, 0);
|
|
MODULE_DEPEND(memacphy_acpi, miibus, 1, 1, 1);
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
struct memac_mdio_softc_acpi {
|
|
struct memac_mdio_softc_common scc;
|
|
};
|
|
|
|
static int
|
|
memac_acpi_miibus_readreg(device_t dev, int phy, int reg)
|
|
{
|
|
struct memac_mdio_softc_acpi *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
return (memac_miibus_readreg(&sc->scc, phy, reg));
|
|
}
|
|
|
|
static int
|
|
memac_acpi_miibus_writereg(device_t dev, int phy, int reg, int data)
|
|
{
|
|
struct memac_mdio_softc_acpi *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
return (memac_miibus_writereg(&sc->scc, phy, reg, data));
|
|
}
|
|
|
|
/* Context for walking PHY child devices. */
|
|
struct memac_mdio_walk_ctx {
|
|
device_t dev;
|
|
int count;
|
|
int countok;
|
|
};
|
|
|
|
static char *memac_mdio_ids[] = {
|
|
"NXP0006",
|
|
NULL
|
|
};
|
|
|
|
static int
|
|
memac_mdio_acpi_probe(device_t dev)
|
|
{
|
|
int rc;
|
|
|
|
if (acpi_disabled("fsl_memac_mdio"))
|
|
return (ENXIO);
|
|
|
|
rc = ACPI_ID_PROBE(device_get_parent(dev), dev, memac_mdio_ids, NULL);
|
|
if (rc <= 0)
|
|
device_set_desc(dev, "Freescale XGMAC MDIO Bus");
|
|
|
|
return (rc);
|
|
}
|
|
|
|
static ACPI_STATUS
|
|
memac_mdio_acpi_probe_child(ACPI_HANDLE h, device_t *dev, int level, void *arg)
|
|
{
|
|
struct memac_mdio_walk_ctx *ctx;
|
|
struct acpi_device *ad;
|
|
device_t child;
|
|
uint32_t adr;
|
|
|
|
ctx = (struct memac_mdio_walk_ctx *)arg;
|
|
ctx->count++;
|
|
|
|
if (ACPI_FAILURE(acpi_GetInteger(h, "_ADR", &adr)))
|
|
return (AE_OK);
|
|
|
|
/* Technically M_ACPIDEV */
|
|
if ((ad = malloc(sizeof(*ad), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL)
|
|
return (AE_OK);
|
|
|
|
child = device_add_child(ctx->dev, "memacphy_acpi", -1);
|
|
if (child == NULL) {
|
|
free(ad, M_DEVBUF);
|
|
return (AE_OK);
|
|
}
|
|
ad->ad_handle = h;
|
|
ad->ad_cls_class = 0xffffff;
|
|
resource_list_init(&ad->ad_rl);
|
|
device_set_ivars(child, ad);
|
|
*dev = child;
|
|
|
|
ctx->countok++;
|
|
return (AE_OK);
|
|
}
|
|
|
|
static int
|
|
memac_mdio_acpi_attach(device_t dev)
|
|
{
|
|
struct memac_mdio_softc_acpi *sc;
|
|
struct memac_mdio_walk_ctx ctx;
|
|
int error;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->scc.dev = dev;
|
|
|
|
error = memac_mdio_generic_attach(&sc->scc);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
ctx.dev = dev;
|
|
ctx.count = 0;
|
|
ctx.countok = 0;
|
|
ACPI_SCAN_CHILDREN(device_get_parent(dev), dev, 1,
|
|
memac_mdio_acpi_probe_child, &ctx);
|
|
if (ctx.countok > 0) {
|
|
bus_generic_probe(dev);
|
|
bus_generic_attach(dev);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
memac_mdio_acpi_detach(device_t dev)
|
|
{
|
|
struct memac_mdio_softc_acpi *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
return (memac_mdio_generic_detach(&sc->scc));
|
|
}
|
|
|
|
static device_method_t memac_mdio_acpi_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, memac_mdio_acpi_probe),
|
|
DEVMETHOD(device_attach, memac_mdio_acpi_attach),
|
|
DEVMETHOD(device_detach, memac_mdio_acpi_detach),
|
|
|
|
/* MII interface */
|
|
DEVMETHOD(miibus_readreg, memac_acpi_miibus_readreg),
|
|
DEVMETHOD(miibus_writereg, memac_acpi_miibus_writereg),
|
|
|
|
/* .. */
|
|
DEVMETHOD(bus_add_child, bus_generic_add_child),
|
|
DEVMETHOD(bus_read_ivar, memac_mdio_read_ivar),
|
|
DEVMETHOD(bus_get_property, memac_mdio_get_property),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
DEFINE_CLASS_0(memac_mdio_acpi, memac_mdio_acpi_driver, memac_mdio_acpi_methods,
|
|
sizeof(struct memac_mdio_softc_acpi));
|
|
|
|
EARLY_DRIVER_MODULE(memac_mdio_acpi, acpi, memac_mdio_acpi_driver, 0, 0,
|
|
BUS_PASS_SUPPORTDEV);
|
|
|
|
DRIVER_MODULE(miibus, memac_mdio_acpi, miibus_driver, 0, 0);
|
|
MODULE_DEPEND(memac_mdio_acpi, miibus, 1, 1, 1);
|
|
MODULE_VERSION(memac_mdio_acpi, 1);
|