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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/*	$Id: sa1111.c,v 1.1.1.1 2008/03/04 16:05:18 nbrk Exp $	*/
/*
 * Copyright (c) 2002  Genetec Corporation.  All rights reserved.
 * Written by Hiroyuki Bessho for Genetec Corporation.
 *
 * 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 for the NetBSD Project by
 *	Genetec Corporation.
 * 4. The name of Genetec Corporation may not be used to endorse or 
 *    promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``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 GENETEC CORPORATION
 * 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.
 *
 */

/*-
 * Copyright (c) 2001, The NetBSD Foundation, Inc.  All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by IWAMOTO Toshihiro and Ichiro FUKUHARA.
 *
 * 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.
 */
/*-
 * Copyright (c) 1999
 *         Shin Takemura and PocketBSD Project. All rights reserved.
 *
 * 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 PocketBSD project
 *	and its contributors.
 * 4. Neither the name of the project 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 REGENTS 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 REGENTS 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 <sys/cdefs.h>

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/reboot.h>

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

//#include <arm/mainbus/mainbus.h>

#include <arm/sa11x0/sa1111_reg.h>
#include <arm/sa11x0/sa11x0_var.h>
#include <arm/sa11x0/sa11x1_var.h>

struct sacc_softc {
	struct device sc_dev;
	bus_space_tag_t sc_bust;
	bus_dma_tag_t sc_dmat;
};

/* prototypes */
int	sacc_match(struct device *, void *, void *);
void	sacc_attach(struct device *, struct device *, void *);
int 	sacc_search(struct device *, void *, void *);
int	sacc_print(void *, const char *);

/* attach structures */
struct cfattach sacc_ca = {
	sizeof(struct sacc_softc), sacc_match, sacc_attach
};

struct cfdriver sacc_cd = {
	NULL, "sacc", DV_DULL
};

struct sacc_softc *sacc_sc;

int
sacc_match(struct device *parent, void *match, void *aux)
{

	return 1;
}

void
sacc_attach(struct device *parent, struct device *self, void *aux)
{
	struct sacc_softc *sc = (struct sacc_softc *)self;
	struct saip_attach_args *saa = aux;
	bus_space_handle_t	sbih;
	uint32_t	skid;

	sacc_sc = sc;
	sc->sc_bust = &sa11x1_bs_tag;

	/* XXX preserve our base addr for sa11x1_bs_map() */
	sa11x1_bs_tag.bs_cookie = &saa->sai_addr;

	/* map SBI module */
	if (bus_space_map(sc->sc_bust, 0 /* SACCSBI_BASE */, 3 /* SACCSBI_SIZE */, 0, &sbih)) {
		printf(": can't map i/o space\n");
		return;
	}

	/*
	 * Identify chip.
	 */
	skid = bus_space_read_4(sc->sc_bust, sbih, SACCSBI_SKID);
	bus_space_unmap(sc->sc_bust, sbih, 3 /* SACCSBI_SIZE */);
	if ((skid & 0xffffff00) != 0x690cc200) {
		printf(": incorrect SA-1111 chip ID\n");
		return;
	}
	printf(": SA-1111 companion chip rev. %d/%d\n", skid & 0xf0, skid & 0x0f);

	/*
	 * Attach all other devices
	 */
	config_search(sacc_search, self, sc);
}

int
sacc_search(struct device *parent, void *c, void *aux)
{
	struct sacc_softc *sc = aux;
	struct sacc_attach_args aa;
	struct cfdata	*cf = c;

	aa.sac_iot = sc->sc_bust;
	aa.sac_dmat = sc->sc_dmat;

	aa.sac_addr = (cf->cf_loc)[0];
	aa.sac_size = (cf->cf_loc)[1];
	aa.sac_intr = (cf->cf_loc)[2];

	config_found(parent, &aa, sacc_print);

	return 0;
}

int
sacc_print(void *aux, const char *name)
{
	struct sacc_attach_args *sa = (struct sacc_attach_args*)aux;

	if (sa->sac_addr != -1) {
                printf(" addr 0x%lx", sa->sac_addr);
	        if (sa->sac_size > -1)
	                printf("-0x%lx", sa->sac_addr + sa->sac_size-1);
	}
        if (sa->sac_intr != -1)
                printf(" xintr %d", sa->sac_intr);

        return (UNCONF);
}