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/octeon1/octeonreg.h>
57 #include <mips/octeon1/obiovar.h>
59 int obio_probe(device_t);
60 int obio_attach(device_t);
63 * We need only one obio. Any other device hanging off of it,
64 * shouldn't cause multiple of these to be found.
66 static int have_one = 0;
69 obio_probe(device_t dev)
79 obio_attach(device_t dev)
81 struct obio_softc *sc = device_get_softc(dev);
83 sc->oba_st = mips_bus_space_generic;
84 sc->oba_addr = OCTEON_UART0ADR;
85 sc->oba_size = 0x10000;
86 sc->oba_rman.rm_type = RMAN_ARRAY;
87 sc->oba_rman.rm_descr = "OBIO I/O";
88 if (rman_init(&sc->oba_rman) != 0 ||
89 rman_manage_region(&sc->oba_rman,
90 sc->oba_addr, sc->oba_addr + sc->oba_size) != 0)
91 panic("obio_attach: failed to set up I/O rman");
92 sc->oba_irq_rman.rm_type = RMAN_ARRAY;
93 sc->oba_irq_rman.rm_descr = "OBIO IRQ";
96 * This module is intended for UART purposes only and
97 * it's IRQ is 0 corresponding to IP2.
99 if (rman_init(&sc->oba_irq_rman) != 0 ||
100 rman_manage_region(&sc->oba_irq_rman, 0, 0) != 0)
101 panic("obio_attach: failed to set up IRQ rman");
103 device_add_child(dev, "uart", 1); /* Setup Uart-1 first. */
104 device_add_child(dev, "uart", 0); /* Uart-0 next. So it is first in console list */
105 bus_generic_probe(dev);
106 bus_generic_attach(dev);
110 static struct resource *
111 obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
112 u_long start, u_long end, u_long count, u_int flags)
116 bus_space_tag_t bt = 0;
117 bus_space_handle_t bh = 0;
118 struct obio_softc *sc = device_get_softc(bus);
122 rm = &sc->oba_irq_rman;
129 bh = device_get_unit(child) ? OCTEON_UART1ADR : OCTEON_UART0ADR;
136 rv = rman_reserve_resource(rm, start, end, count, flags, child);
140 if (type == SYS_RES_IRQ) {
143 rman_set_rid(rv, *rid);
144 rman_set_bustag(rv, bt);
145 rman_set_bushandle(rv, bh);
148 if (bus_activate_resource(child, type, *rid, rv)) {
149 rman_release_resource(rv);
158 obio_activate_resource(device_t bus, device_t child, int type, int rid,
163 static device_method_t obio_methods[] = {
164 DEVMETHOD(device_probe, obio_probe),
165 DEVMETHOD(device_attach, obio_attach),
167 DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
168 DEVMETHOD(bus_activate_resource, obio_activate_resource),
169 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
170 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
175 static driver_t obio_driver = {
178 sizeof(struct obio_softc),
180 static devclass_t obio_devclass;
182 DRIVER_MODULE(obio, nexus, obio_driver, obio_devclass, 0, 0);