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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)

/*	$OpenBSD: hilreg.h,v 1.2 2006/08/17 06:31:10 miod Exp $	*/
/*	$NetBSD: hilreg.h,v 1.6 1997/02/02 09:39:21 thorpej Exp $	*/

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * 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. Neither the name of the University 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.
 *
 * from: Utah $Hdr: hilreg.h 1.10 92/01/21$
 *
 *	@(#)hilreg.h	8.1 (Berkeley) 6/10/93
 */

#include <hp300/dev/iotypes.h>		/* XXX */

struct	hil_dev {
	char	hil_pad0;
	vu_char	hil_data;
	char	hil_pad1;
	vu_char	hil_cmd;
#define hil_stat hil_cmd
};

#define	HILADDR			((struct hil_dev *)IIOV(0x428000))

#define READHILDATA(x)		((x)->hil_data)
#define READHILSTAT(x)		((x)->hil_stat)
#define READHILCMD(x)		((x)->hil_cmd)
#define WRITEHILDATA(x, y)	((x)->hil_data = (y))
#define WRITEHILSTAT(x, y)	((x)->hil_stat = (y))
#define WRITEHILCMD(x, y)	((x)->hil_cmd  = (y))

#define	HIL_BUSY		0x02
#define	HIL_DATA_RDY		0x01

#define HILWAIT(hil_dev)	while ((READHILSTAT(hil_dev) & HIL_BUSY))
#define HILDATAWAIT(hil_dev)	while (!(READHILSTAT(hil_dev) & HIL_DATA_RDY))

/* HIL status bits */
#define	HIL_POLLDATA	0x10		/* HIL poll data follows */
#define	HIL_COMMAND	0x08		/* Start of original command */
#define	HIL_ERROR	0x080		/* HIL error */
#define	HIL_RECONFIG	0x080		/* HIL has reconfigured */
#define	HIL_STATMASK	(HIL_DATA | HIL_COMMAND)

#define	HIL_SSHIFT	4		/* Bits to shift status over */
#define	HIL_SMASK	0xF		/* Service request status mask */
#define	HIL_DEVMASK	0x07

/* HIL status types */
#define	HIL_STATUS	0x5		/* HIL status in data register */
#define	HIL_DATA	0x6		/* HIL data in data register */
#define	HIL_CTRLSHIFT	0x8		/* key + CTRL + SHIFT */
#define	HIL_CTRL	0x9		/* key + CTRL */
#define	HIL_SHIFT	0xA		/* key + SHIFT */
#define	HIL_KEY		0xB		/* key only */
#define	HIL_68K		0x4		/* Data from the 68k is ready */

/* HIL commands */
#define	HIL_SETARD	0xA0		/* set auto-repeat delay */
#define	HIL_SETARR	0xA2		/* set auto-repeat rate */
#define	HIL_SETTONE	0xA3		/* set tone generator */
#define	HIL_CNMT	0xB2		/* clear nmi */
#define	HIL_INTON	0x5C		/* Turn on interrupts. */
#define	HIL_INTOFF	0x5D		/* Turn off interrupts. */
#define	HIL_TRIGGER	0xC5		/* trigger command */
#define	HIL_STARTCMD	0xE0		/* start loop command */
#define	HIL_TIMEOUT	0xFE		/* timeout */
#define	HIL_READTIME	0x13		/* Read real time register */

/* Read/write various registers on the 8042. */
#define	HIL_READBUSY		0x02	/* internal "busy" register */
#define	HIL_READKBDLANG		0x12	/* read keyboard language code */
#define	HIL_READKBDSADR	 	0xF9
#define	HIL_WRITEKBDSADR 	0xE9
#define	HIL_READLPSTAT  	0xFA
#define	HIL_WRITELPSTAT 	0xEA
#define	HIL_READLPCTRL  	0xFB
#define	HIL_WRITELPCTRL 	0xEB

/* BUSY bits */
#define	BSY_LOOPBUSY	0x04

/* LPCTRL bits */
#define	LPC_AUTOPOLL	0x01	/* enable auto-polling */
#define	LPC_NOERROR	0x02	/* don't report errors */
#define	LPC_NORECONF	0x04	/* don't report reconfigure */
#define	LPC_KBDCOOK	0x10	/* cook all keyboards */
#define	LPC_RECONF	0x80	/* reconfigure the loop */

/* LPSTAT bits */
#define	LPS_DEVMASK	0x07	/* number of loop devices */
#define	LPS_CONFGOOD	0x08	/* reconfiguration worked */
#define	LPS_CONFFAIL	0x80	/* reconfiguration failed */

/* HIL packet headers */
#define	HIL_MOUSEDATA   0x2
#define	HIL_KBDDATA     0x40

#define	HIL_MOUSEMOTION	0x02	/* mouse movement event */
#define	HIL_KBDBUTTON	0x40	/* keyboard button event */
#define	HIL_MOUSEBUTTON 0x40	/* mouse button event */
#define	HIL_BUTTONBOX   0x60	/* button box event */
#define	HIL_TABLET      0x02	/* tablet motion event */
#define	HIL_KNOBBOX     0x03	/* knob box motion data */

/* For setting auto repeat on the keyboard */
#define	ar_format(x)	~((x - 10) / 10)
#define	KBD_ARD		400	/* initial delay in msec (10 - 2560) */
#define	KBD_ARR		60	/* rate (10 - 2550 msec, 2551 == off) */

/* Magic */
#define	KBDNMISTAT	((volatile char *)IIOV(0x478005))
#define	KBDNMI		0x04

/* keyboard status */
#define	KBD_CHARMASK	0x7F
#define	KBD_CTRLSHIFT	0x8		/* key + CTRL + SHIFT */
#define	KBD_CTRL	0x9		/* key + CTRL */
#define	KBD_SHIFT	0xA		/* key + SHIFT */
#define	KBD_KEY		0xB		/* key only */