xref: /src/sys/arch/algor/dev/mainbus.c

/*	$NetBSD: mainbus.c,v 1.1 2001/05/28 16:22:16 thorpej Exp $	*/

/*-
 * Copyright (c) 2001 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the NetBSD
 *	Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#include "opt_algor_p4032.h"
#include "opt_algor_p5064.h"
#include "opt_algor_p6032.h"

#include "opt_pci.h"

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/reboot.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/extent.h>

#include <machine/bus.h>
#include <machine/autoconf.h>

#include <dev/pci/pcivar.h>
#include <dev/pci/pciconf.h>

#include "locators.h"
#include "pci.h"

int	mainbus_match(struct device *, struct cfdata *, void *);
void	mainbus_attach(struct device *, struct device *, void *);

struct cfattach mainbus_ca = {
	sizeof(struct device), mainbus_match, mainbus_attach,
};

int	mainbus_print(void *, const char *);
int	mainbus_submatch(struct device *, struct cfdata *, void *);

/* There can be only one. */
int	mainbus_found;

#if defined(ALGOR_P5064)
#include <algor/algor/algor_p5064reg.h>
#include <algor/algor/algor_p5064var.h>

struct mainbus_attach_args mainbusdevs[] = {
	{ "cpu",		-1 },
	{ "vtpbc",		P5064_V360EPC },

	{ NULL,			0 },
};
#endif /* ALGOR_P5064 */

int
mainbus_match(struct device *parent, struct cfdata *cf, void *aux)
{

	if (mainbus_found)
		return (0);

	return (1);
}

void
mainbus_attach(struct device *parent, struct device *self, void *aux)
{
	struct mainbus_attach_args *ma;
#if defined(PCI_NETBSD_CONFIGURE)
	struct extent *ioext, *memext;
	pci_chipset_tag_t pc;
#endif

	mainbus_found = 1;

	printf("\n");

#if NPCI > 0 && defined(PCI_NETBSD_CONFIGURE)
#if defined(ALGOR_P5064)
	/*
	 * Reserve the bottom 512K of the I/O space for ISA devices.
	 * According to the PMON sources, this is a work-around for
	 * a bug in the ISA bridge.
	 */
	ioext  = extent_create("pciio",  0x00080000, 0x00ffffff,
	    M_DEVBUF, NULL, 0, EX_NOWAIT);
	memext = extent_create("pcimem", 0x01000000, 0x07ffffff,
	    M_DEVBUF, NULL, 0, EX_NOWAIT);

	pc = &p5064_configuration.ac_pc;
#endif /* ALGOR_P5064 */

	pci_configure_bus(pc, ioext, memext, NULL);
	extent_destroy(ioext);
	extent_destroy(memext);
#endif /* NPCI > 0 && defined(PCI_NETBSD_CONFIGURE) */

	for (ma = mainbusdevs; ma->ma_name != NULL; ma++)
		(void) config_found_sm(self, ma, mainbus_print,
		    mainbus_submatch);
}

int
mainbus_print(void *aux, const char *pnp)
{
	struct mainbus_attach_args *ma = aux;

	if (pnp)
		printf("%s at %s", ma->ma_name, pnp);
	if (ma->ma_addr != (bus_addr_t) -1)
		printf(" %s 0x%lx", mainbuscf_locnames[MAINBUSCF_ADDR],
		    ma->ma_addr);

	return (UNCONF);
}

int
mainbus_submatch(struct device *parent, struct cfdata *cf, void *aux)
{
	struct mainbus_attach_args *ma = aux;

	if (cf->cf_loc[MAINBUSCF_ADDR] != MAINBUSCF_ADDR_DEFAULT &&
	    cf->cf_loc[MAINBUSCF_ADDR] != ma->ma_addr)
		return (0);

	return ((*cf->cf_attach->ca_match)(parent, cf, aux));
}