286 lines
7.8 KiB
C
286 lines
7.8 KiB
C
/*-
|
|
* Copyright (c) 2015 The FreeBSD Foundation
|
|
*
|
|
* This software was developed by Semihalf under
|
|
* the sponsorship of the FreeBSD Foundation.
|
|
*
|
|
* 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/systm.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
#include <dev/fdt/simplebus.h>
|
|
|
|
#include <net/if.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include "thunder_mdio_var.h"
|
|
|
|
static int thunder_mdio_fdt_probe(device_t);
|
|
static int thunder_mdio_fdt_attach(device_t);
|
|
|
|
static device_method_t thunder_mdio_fdt_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, thunder_mdio_fdt_probe),
|
|
DEVMETHOD(device_attach, thunder_mdio_fdt_attach),
|
|
|
|
/* End */
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
DEFINE_CLASS_1(thunder_mdio, thunder_mdio_fdt_driver, thunder_mdio_fdt_methods,
|
|
sizeof(struct thunder_mdio_softc), thunder_mdio_driver);
|
|
|
|
EARLY_DRIVER_MODULE(thunder_mdio, ofwbus, thunder_mdio_fdt_driver, 0, 0,
|
|
BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
|
|
EARLY_DRIVER_MODULE(thunder_mdio, mdionexus, thunder_mdio_fdt_driver, 0, 0,
|
|
BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
|
|
|
|
static struct ofw_compat_data mdio_compat_data[] = {
|
|
{"cavium,octeon-3860-mdio", true},
|
|
{"cavium,thunder-8890-mdio", true},
|
|
{NULL, false}
|
|
};
|
|
|
|
static int
|
|
thunder_mdio_fdt_probe(device_t dev)
|
|
{
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
if (!ofw_bus_search_compatible(dev, mdio_compat_data)->ocd_data)
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, THUNDER_MDIO_DEVSTR);
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
thunder_mdio_fdt_attach(device_t dev)
|
|
{
|
|
phandle_t node;
|
|
int ret;
|
|
|
|
/* Call core attach */
|
|
ret = thunder_mdio_attach(dev);
|
|
if (ret != 0)
|
|
return (ret);
|
|
/*
|
|
* Register device to this node/xref.
|
|
* Thanks to that we will be able to retrieve device_t structure
|
|
* while holding only node reference acquired from FDT.
|
|
*/
|
|
node = ofw_bus_get_node(dev);
|
|
OF_device_register_xref(OF_xref_from_node(node), dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
struct mdionexus_softc {
|
|
struct simplebus_softc simplebus_sc;
|
|
};
|
|
|
|
static device_probe_t mdionexus_fdt_probe;
|
|
static device_attach_t mdionexus_fdt_attach;
|
|
|
|
static const struct ofw_bus_devinfo * mdionexus_ofw_get_devinfo(device_t,
|
|
device_t);
|
|
|
|
static device_method_t mdionexus_fdt_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, mdionexus_fdt_probe),
|
|
DEVMETHOD(device_attach, mdionexus_fdt_attach),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
|
|
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
|
|
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
|
|
|
|
/* ofw_bus interface */
|
|
DEVMETHOD(ofw_bus_get_devinfo, mdionexus_ofw_get_devinfo),
|
|
DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
|
|
DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
|
|
DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
|
|
DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
|
|
DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
DEFINE_CLASS_0(mdionexus, mdionexus_fdt_driver, mdionexus_fdt_methods,
|
|
sizeof(struct mdionexus_softc));
|
|
|
|
EARLY_DRIVER_MODULE(mdionexus, mrmlbus, mdionexus_fdt_driver, 0, 0,
|
|
BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
|
|
|
|
static int mdionexus_ofw_fill_ranges(phandle_t, struct simplebus_softc *);
|
|
static int mdionexus_ofw_bus_attach(device_t);
|
|
|
|
static int
|
|
mdionexus_fdt_probe(device_t dev)
|
|
{
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
|
|
if (!ofw_bus_is_compatible(dev, "cavium,thunder-8890-mdio-nexus"))
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "Cavium ThunderX MDIO nexus");
|
|
return (BUS_PROBE_SPECIFIC);
|
|
}
|
|
|
|
static int
|
|
mdionexus_fdt_attach(device_t dev)
|
|
{
|
|
int err;
|
|
|
|
err = mdionexus_ofw_bus_attach(dev);
|
|
if (err != 0)
|
|
return (err);
|
|
|
|
return (bus_generic_attach(dev));
|
|
}
|
|
|
|
/* OFW bus interface */
|
|
struct mdionexus_ofw_devinfo {
|
|
struct ofw_bus_devinfo di_dinfo;
|
|
struct resource_list di_rl;
|
|
};
|
|
|
|
static const struct ofw_bus_devinfo *
|
|
mdionexus_ofw_get_devinfo(device_t bus __unused, device_t child)
|
|
{
|
|
struct mdionexus_ofw_devinfo *di;
|
|
|
|
di = device_get_ivars(child);
|
|
return (&di->di_dinfo);
|
|
}
|
|
|
|
/* Helper functions */
|
|
|
|
static int
|
|
mdionexus_ofw_fill_ranges(phandle_t node, struct simplebus_softc *sc)
|
|
{
|
|
int host_address_cells;
|
|
cell_t *base_ranges;
|
|
ssize_t nbase_ranges;
|
|
int err;
|
|
int i, j, k;
|
|
|
|
err = OF_searchencprop(OF_parent(node), "#address-cells",
|
|
&host_address_cells, sizeof(host_address_cells));
|
|
if (err <= 0)
|
|
return (-1);
|
|
|
|
nbase_ranges = OF_getproplen(node, "ranges");
|
|
if (nbase_ranges < 0)
|
|
return (-1);
|
|
sc->nranges = nbase_ranges / sizeof(cell_t) /
|
|
(sc->acells + host_address_cells + sc->scells);
|
|
if (sc->nranges == 0)
|
|
return (0);
|
|
|
|
sc->ranges = malloc(sc->nranges * sizeof(sc->ranges[0]),
|
|
M_THUNDER_MDIO, M_WAITOK);
|
|
base_ranges = malloc(nbase_ranges, M_THUNDER_MDIO, M_WAITOK);
|
|
OF_getencprop(node, "ranges", base_ranges, nbase_ranges);
|
|
|
|
for (i = 0, j = 0; i < sc->nranges; i++) {
|
|
sc->ranges[i].bus = 0;
|
|
for (k = 0; k < sc->acells; k++) {
|
|
sc->ranges[i].bus <<= 32;
|
|
sc->ranges[i].bus |= base_ranges[j++];
|
|
}
|
|
sc->ranges[i].host = 0;
|
|
for (k = 0; k < host_address_cells; k++) {
|
|
sc->ranges[i].host <<= 32;
|
|
sc->ranges[i].host |= base_ranges[j++];
|
|
}
|
|
sc->ranges[i].size = 0;
|
|
for (k = 0; k < sc->scells; k++) {
|
|
sc->ranges[i].size <<= 32;
|
|
sc->ranges[i].size |= base_ranges[j++];
|
|
}
|
|
}
|
|
|
|
free(base_ranges, M_THUNDER_MDIO);
|
|
return (sc->nranges);
|
|
}
|
|
|
|
static int
|
|
mdionexus_ofw_bus_attach(device_t dev)
|
|
{
|
|
struct simplebus_softc *sc;
|
|
struct mdionexus_ofw_devinfo *di;
|
|
device_t child;
|
|
phandle_t parent, node;
|
|
|
|
parent = ofw_bus_get_node(dev);
|
|
simplebus_init(dev, parent);
|
|
|
|
sc = (struct simplebus_softc *)device_get_softc(dev);
|
|
|
|
if (mdionexus_ofw_fill_ranges(parent, sc) < 0) {
|
|
device_printf(dev, "could not get ranges\n");
|
|
return (ENXIO);
|
|
}
|
|
/* Iterate through all bus subordinates */
|
|
for (node = OF_child(parent); node > 0; node = OF_peer(node)) {
|
|
/* Allocate and populate devinfo. */
|
|
di = malloc(sizeof(*di), M_THUNDER_MDIO, M_WAITOK | M_ZERO);
|
|
if (ofw_bus_gen_setup_devinfo(&di->di_dinfo, node) != 0) {
|
|
free(di, M_THUNDER_MDIO);
|
|
continue;
|
|
}
|
|
|
|
/* Initialize and populate resource list. */
|
|
resource_list_init(&di->di_rl);
|
|
ofw_bus_reg_to_rl(dev, node, sc->acells, sc->scells,
|
|
&di->di_rl);
|
|
ofw_bus_intr_to_rl(dev, node, &di->di_rl, NULL);
|
|
|
|
/* Add newbus device for this FDT node */
|
|
child = device_add_child(dev, NULL, -1);
|
|
if (child == NULL) {
|
|
resource_list_free(&di->di_rl);
|
|
ofw_bus_gen_destroy_devinfo(&di->di_dinfo);
|
|
free(di, M_THUNDER_MDIO);
|
|
continue;
|
|
}
|
|
|
|
device_set_ivars(child, di);
|
|
}
|
|
|
|
return (0);
|
|
}
|