1 /* $NetBSD: obio.c,v 1.11 2003/07/15 00:25:05 lukem Exp $ */
4 * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
39 * On-board device autoconfiguration support for Intel IQ80321
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
46 #include <sys/param.h>
47 #include <sys/systm.h>
49 #include <sys/kernel.h>
50 #include <sys/module.h>
52 #include <sys/malloc.h>
54 #include <machine/bus.h>
56 #include <mips/malta/maltareg.h>
57 #include <mips/malta/obiovar.h>
59 int obio_probe(device_t);
60 int obio_attach(device_t);
63 * A bit tricky and hackish. Since we need OBIO to rely
64 * on PCI we make it pseudo-pci device. But there should
65 * be only one such device, so we use this static flag
66 * to prevent false positives on every real PCI device probe.
68 static int have_one = 0;
71 obio_probe(device_t dev)
81 obio_attach(device_t dev)
83 struct obio_softc *sc = device_get_softc(dev);
85 sc->oba_st = mips_bus_space_generic;
86 sc->oba_addr = MIPS_PHYS_TO_KSEG1(MALTA_UART0ADR);
87 sc->oba_size = MALTA_PCIMEM3_SIZE;
88 sc->oba_rman.rm_type = RMAN_ARRAY;
89 sc->oba_rman.rm_descr = "OBIO I/O";
90 if (rman_init(&sc->oba_rman) != 0 ||
91 rman_manage_region(&sc->oba_rman,
92 sc->oba_addr, sc->oba_addr + sc->oba_size) != 0)
93 panic("obio_attach: failed to set up I/O rman");
94 sc->oba_irq_rman.rm_type = RMAN_ARRAY;
95 sc->oba_irq_rman.rm_descr = "OBIO IRQ";
98 * This module is intended for UART purposes only and
101 if (rman_init(&sc->oba_irq_rman) != 0 ||
102 rman_manage_region(&sc->oba_irq_rman, 4, 4) != 0)
103 panic("obio_attach: failed to set up IRQ rman");
105 device_add_child(dev, "uart", 0);
106 bus_generic_probe(dev);
107 bus_generic_attach(dev);
112 static struct resource *
113 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
114 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
118 bus_space_tag_t bt = 0;
119 bus_space_handle_t bh = 0;
120 struct obio_softc *sc = device_get_softc(bus);
124 rm = &sc->oba_irq_rman;
139 rv = rman_reserve_resource(rm, start, end, count, flags, child);
142 if (type == SYS_RES_IRQ)
144 rman_set_rid(rv, *rid);
145 rman_set_bustag(rv, bt);
146 rman_set_bushandle(rv, bh);
149 if (bus_activate_resource(child, type, *rid, rv)) {
150 rman_release_resource(rv);
159 obio_activate_resource(device_t bus, device_t child, int type, int rid,
164 static device_method_t obio_methods[] = {
165 DEVMETHOD(device_probe, obio_probe),
166 DEVMETHOD(device_attach, obio_attach),
168 DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
169 DEVMETHOD(bus_activate_resource, obio_activate_resource),
170 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
171 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
176 static driver_t obio_driver = {
179 sizeof(struct obio_softc),
181 static devclass_t obio_devclass;
183 DRIVER_MODULE(obio, pci, obio_driver, obio_devclass, 0, 0);