freebsd-nq/sys/powerpc/mpc85xx/nexus.c

141 lines
4.9 KiB
C

/*-
* Copyright 1998 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that both the above copyright notice and this
* permission notice appear in all copies, that both the above
* copyright notice and this permission notice appear in all
* supporting documentation, and that the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. M.I.T. makes
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
* SHALL M.I.T. 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.
*/
/*-
* Copyright 2001 by Thomas Moestl <tmm@FreeBSD.org>. All rights reserved.
*
* 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.
*
* from: FreeBSD: src/sys/i386/i386/nexus.c,v 1.43 2001/02/09
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/cons.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/rman.h>
/*
* Device interface
*/
static int nexus_probe(device_t);
static int nexus_activate_resource(device_t, device_t, int, int,
struct resource *);
static int nexus_deactivate_resource(device_t, device_t, int, int,
struct resource *);
static device_method_t nexus_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, nexus_probe),
DEVMETHOD(device_attach, bus_generic_attach),
DEVMETHOD(device_detach, bus_generic_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface. Resource management is business of the children... */
DEVMETHOD(bus_add_child, NULL),
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_probe_nomatch, NULL),
DEVMETHOD(bus_read_ivar, NULL),
DEVMETHOD(bus_write_ivar, NULL),
DEVMETHOD(bus_setup_intr, NULL),
DEVMETHOD(bus_teardown_intr, NULL),
DEVMETHOD(bus_alloc_resource, NULL),
DEVMETHOD(bus_activate_resource, nexus_activate_resource),
DEVMETHOD(bus_deactivate_resource, nexus_deactivate_resource),
DEVMETHOD(bus_release_resource, NULL),
{ 0, 0 }
};
static driver_t nexus_driver = {
"nexus",
nexus_methods
};
static devclass_t nexus_devclass;
DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0);
static int
nexus_probe (device_t dev)
{
/*
* Add OCP (on-chip peripheral) bus
*/
device_add_child(dev, "ocpbus", 0);
device_set_desc(dev, "MPC85xx Nexus device");
return (0);
}
static int
nexus_activate_resource (device_t bus, device_t child, int type, int rid,
struct resource *res)
{
/* Not much to be done yet... */
return (rman_activate_resource(res));
}
static int
nexus_deactivate_resource (device_t bus, device_t child, int type, int rid,
struct resource *res)
{
/* Not much to be done yet... */
return (rman_deactivate_resource(res));
}