143 lines
4.0 KiB
C
143 lines
4.0 KiB
C
/* $NetBSD: obio.c,v 1.6 2003/07/15 00:24:57 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 ADI BRH
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* evaluation boards.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.6 2003/07/15 00:24:57 lukem Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/autoconf.h>
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#include <machine/bus.h>
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#include <arm/xscale/beccreg.h>
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#include <arm/xscale/beccvar.h>
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#include <evbarm/adi_brh/brhreg.h>
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#include <evbarm/adi_brh/obiovar.h>
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#include "locators.h"
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int obio_match(struct device *, struct cfdata *, void *);
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void obio_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(obio, sizeof(struct device),
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obio_match, obio_attach, NULL, NULL);
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int obio_print(void *, const char *);
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int obio_search(struct device *, struct cfdata *, void *);
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/* there can be only one */
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int obio_found;
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int
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obio_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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#if 0
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struct mainbus_attach_args *ma = aux;
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#endif
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if (obio_found)
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return (0);
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#if 1
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/* XXX Shoot arch/arm/mainbus in the head. */
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return (1);
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#else
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if (strcmp(cf->cf_name, ma->ma_name) == 0)
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return (1);
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return (0);
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#endif
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}
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void
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obio_attach(struct device *parent, struct device *self, void *aux)
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{
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obio_found = 1;
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aprint_naive("\n");
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aprint_normal("\n");
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/*
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* Attach all on-board devices as described in the kernel
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* configuration file.
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*/
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config_search(obio_search, self, NULL);
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}
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int
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obio_print(void *aux, const char *pnp)
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{
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struct obio_attach_args *oba = aux;
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aprint_normal(" addr 0x%08lx", oba->oba_addr);
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if (oba->oba_size != OBIOCF_SIZE_DEFAULT)
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aprint_normal("-0x%08lx", oba->oba_addr + (oba->oba_size - 1));
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if (oba->oba_width != OBIOCF_WIDTH_DEFAULT)
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aprint_normal(" width %d", oba->oba_width);
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if (oba->oba_irq != OBIOCF_IRQ_DEFAULT)
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aprint_normal(" irq %d", oba->oba_irq);
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return (UNCONF);
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}
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int
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obio_search(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct obio_attach_args oba;
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oba.oba_st = &obio_bs_tag;
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oba.oba_addr = cf->cf_loc[OBIOCF_ADDR];
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oba.oba_size = cf->cf_loc[OBIOCF_SIZE];
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oba.oba_width = cf->cf_loc[OBIOCF_WIDTH];
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oba.oba_irq = cf->cf_loc[OBIOCF_IRQ];
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if (config_match(parent, cf, &oba) > 0)
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config_attach(parent, cf, &oba, obio_print);
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return (0);
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}
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