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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: fhpibreg.h,v 1.3 2003/06/02 23:27:44 millert Exp $	*/
/*	$NetBSD: fhpibreg.h,v 1.4 1994/10/26 07:23:45 cgd Exp $	*/

/*
 * Copyright (c) 1982, 1990, 1993
 *	The Regents of the University of California.  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. 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.
 *
 *	@(#)fhpibreg.h	8.1 (Berkeley) 6/10/93
 */

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

struct	fhpibdevice {
	u_char	hpib_pad0;
	vu_char	hpib_cid;
	u_char	hpib_pad1;
#define	hpib_ie		hpib_ids
	vu_char	hpib_ids;
	u_char	hpib_pad2;
	vu_char	hpib_ctrl2;
	u_char	hpib_pad3;
	vu_char	hpib_latch;
	u_char	hpib_pad4[9];
	vu_char	hpib_intr;
	u_char	hpib_pad5;
	vu_char	hpib_imask;
	u_char	hpib_pad6;
	vu_char	hpib_data;
	u_char	hpib_pad7;
	vu_char	hpib_stat;
	u_char	hpib_pad8;
	vu_char	hpib_cmd;
	u_char	hpib_pad9;
	vu_char	hpib_ar;
	u_char	hpib_pad10;
	vu_char	hpib_pmask;
	u_char	hpib_pad11;
	vu_char	hpib_psense;
};

/* status bits */
#define	ST_READ0        0xC0
#define	ST_READ1	0x80
#define	ST_IENAB	0x80
#define	ST_EOI		0x80
#define	ST_ATN		0x40
#define	ST_WRITE	0x00

/* control bits */
#define	CT_8BIT		0x80
#define	CT_REN		0x20
#define	CT_IFC		0x10
#define	CT_FIFOSEL	0x02
#define	CT_INITFIFO	0x01

#define	IM_PABORT	0x40
#define	IM_PPRESP	0x20
#define	IM_ROOM		0x08
#define	IM_BYTE		0x04
#define	IM_IDLE		0x02

#define	AR_ARONC	0x80