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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	*/
/*-
 * Copyright (c) 2001 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by IWAMOTO Toshihiro.
 *
 * 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.
 */

struct sapcic_socket {
	struct sapcic_softc *sc;
	int socket;			/* socket number */
	struct device *pcmcia;
	struct sapcic_tag *pcictag;

//	struct lwp *event_thread;
	int event;
	int laststatus;
	int shutdown;

	int power_capability;

	void *pcictag_cookie;	/* opaque data for pcictag functions */
};

struct sapcic_tag {
	int (*read)(struct sapcic_socket *, int);
	void (*write)(struct sapcic_socket *, int, int);
	void (*set_power)(struct sapcic_socket *, int);
	void (*clear_intr)(int);
	void *(*intr_establish)(struct sapcic_socket *, int,
			       int (*)(void *), void *);
	void (*intr_disestablish)(struct sapcic_socket *, void *);
};

/* registers and their values */
#define SAPCIC_STATUS_CARD		0
#define SAPCIC_CARD_VALID		1
#define SAPCIC_CARD_INVALID		0
#define SAPCIC_STATUS_VS1		1
#define SAPCIC_STATUS_VS2		2
#define SAPCIC_STATUS_READY		3

#define SAPCIC_CONTROL_RESET		8	/* assert RESET */
#define SAPCIC_CONTROL_LINEENABLE	9	/* enable control lines */
#define SAPCIC_CONTROL_WAITENABLE	10	/* enable nWAIT signal */
#define SAPCIC_CONTROL_POWERSELECT	11	/* select card voltage */

/* Voltage selection */
#define SAPCIC_POWER_OFF		0
#define SAPCIC_POWER_3V			1
#define SAPCIC_POWER_5V			2

/* common part for sacpcic_softc and sagpcic_softc */
struct sapcic_softc {
	struct device sc_dev;
	bus_space_tag_t sc_iot;
	kmutex_t sc_lock;
};

int	sapcic_intr(void *);
void	sapcic_kthread_create(void *);

extern struct pcmcia_chip_functions sa11x0_pcmcia_functions;