diff options
Diffstat (limited to 'sys/powerpc/mpc85xx/nexus.c')
| -rw-r--r-- | sys/powerpc/mpc85xx/nexus.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/sys/powerpc/mpc85xx/nexus.c b/sys/powerpc/mpc85xx/nexus.c new file mode 100644 index 0000000..01e0425 --- /dev/null +++ b/sys/powerpc/mpc85xx/nexus.c @@ -0,0 +1,144 @@ +/*- + * 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 *); + +/* + * Local routines + */ + +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)); +} |
