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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: xscalereg.h,v 1.2 2006/05/29 17:27:31 drahn Exp $	*/
/*	$NetBSD: xscalereg.h,v 1.2 2002/08/07 05:15:02 briggs Exp $	*/

/*
 * Copyright (c) 2001 Wasabi Systems, Inc.
 * All rights reserved.
 *
 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
 *
 * 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
 *	Wasabi Systems, Inc.
 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
 *    or promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
 * 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.
 */

#ifndef _ARM_XSCALE_XSCALEREG_H_ 
#define _ARM_XSCALE_XSCALEREG_H_ 

/*
 * Register definitions for the Intel XScale processor core.
 */

/*
 * Performance Monitoring Unit		(CP14)
 *
 *	CP14.0		Performance Monitor Control Register
 *	CP14.1		Clock Counter
 *	CP14.2		Performance Counter Register 0
 *	CP14.3		Performance Counter Register 1
 */

#define	PMNC_E		0x00000001	/* enable counters */
#define	PMNC_P		0x00000002	/* reset both PMNs to 0 */
#define	PMNC_C		0x00000004	/* clock counter reset */
#define	PMNC_D		0x00000008	/* clock counter / 64 */
#define	PMNC_PMN0_IE	0x00000010	/* enable PMN0 interrupt */
#define	PMNC_PMN1_IE	0x00000020	/* enable PMN1 interrupt */
#define	PMNC_CC_IE	0x00000040	/* enable clock counter interrupt */
#define	PMNC_PMN0_IF	0x00000100	/* PMN0 overflow/interrupt */
#define	PMNC_PMN1_IF	0x00000200	/* PMN1 overflow/interrupt */
#define	PMNC_CC_IF	0x00000400	/* clock counter overflow/interrupt */
#define	PMNC_EVCNT0_MASK 0x000ff000	/* event to count for PMN0 */
#define	PMNC_EVCNT0_SHIFT 12
#define	PMNC_EVCNT1_MASK 0x0ff00000	/* event to count for PMN1 */
#define	PMNC_EVCNT1_SHIFT 20

void	xscale_pmu_init(void);

#endif /* _ARM_XSCALE_XSCALEREG_H_ */