167 lines
4.6 KiB
C
167 lines
4.6 KiB
C
/* $NetBSD: obio.c,v 1.11 2003/07/15 00:25:05 lukem Exp $ */
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/*-
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* Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* On-board device autoconfiguration support for Intel IQ80321
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* evaluation boards.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/rman.h>
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#include <sys/malloc.h>
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#include <machine/bus.h>
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#include <arm/xscale/i80321/i80321reg.h>
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#include <arm/xscale/i80321/iq80321reg.h>
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#include <arm/xscale/i80321/obiovar.h>
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int obio_probe(device_t);
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int obio_attach(device_t);
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int
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obio_probe(device_t dev)
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{
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return (0);
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}
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int
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obio_attach(device_t dev)
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{
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struct obio_softc *sc = device_get_softc(dev);
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sc->oba_st = &obio_bs_tag;
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sc->oba_addr = IQ80321_OBIO_BASE;
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sc->oba_size = IQ80321_OBIO_SIZE;
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sc->oba_rman.rm_type = RMAN_ARRAY;
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sc->oba_rman.rm_descr = "OBIO I/O";
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if (rman_init(&sc->oba_rman) != 0 ||
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rman_manage_region(&sc->oba_rman,
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sc->oba_addr, sc->oba_addr + sc->oba_size) != 0)
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panic("obio_attach: failed to set up I/O rman");
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sc->oba_irq_rman.rm_type = RMAN_ARRAY;
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sc->oba_irq_rman.rm_descr = "OBIO IRQ";
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if (rman_init(&sc->oba_irq_rman) != 0 ||
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rman_manage_region(&sc->oba_irq_rman, 28, 28) != 0)
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panic("obio_attach: failed to set up IRQ rman");
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device_add_child(dev, "uart", 0);
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bus_generic_probe(dev);
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bus_generic_attach(dev);
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return (0);
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}
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static struct resource *
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obio_alloc_resource(device_t bus, device_t child, int type, int *rid,
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u_long start, u_long end, u_long count, u_int flags)
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{
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struct resource *rv;
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struct rman *rm;
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bus_space_tag_t bt = NULL;
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bus_space_handle_t bh = 0;
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struct obio_softc *sc = device_get_softc(bus);
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switch (type) {
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case SYS_RES_IRQ:
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rm = &sc->oba_irq_rman;
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break;
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case SYS_RES_MEMORY:
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return (NULL);
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case SYS_RES_IOPORT:
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rm = &sc->oba_rman;
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bt = sc->oba_st;
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bh = sc->oba_addr;
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start = bh;
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break;
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default:
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return (NULL);
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}
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rv = rman_reserve_resource(rm, start, end, count, flags, child);
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if (rv == NULL)
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return (NULL);
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if (type == SYS_RES_IRQ)
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return (rv);
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rman_set_rid(rv, *rid);
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rman_set_bustag(rv, bt);
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rman_set_bushandle(rv, bh);
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if (0) {
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if (bus_activate_resource(child, type, *rid, rv)) {
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rman_release_resource(rv);
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return (NULL);
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}
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}
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return (rv);
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}
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static int
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obio_activate_resource(device_t bus, device_t child, int type, int rid,
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struct resource *r)
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{
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return (0);
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}
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static device_method_t obio_methods[] = {
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DEVMETHOD(device_probe, obio_probe),
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DEVMETHOD(device_attach, obio_attach),
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DEVMETHOD(bus_alloc_resource, obio_alloc_resource),
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DEVMETHOD(bus_activate_resource, obio_activate_resource),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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{0, 0},
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};
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static driver_t obio_driver = {
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"obio",
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obio_methods,
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sizeof(struct obio_softc),
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};
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static devclass_t obio_devclass;
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DRIVER_MODULE(obio, iq, obio_driver, obio_devclass, 0, 0);
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