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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: isa_machdep.h,v 1.3 2004/04/07 18:24:19 mickey Exp $	*/

/*
 * Copyright (c) 1998-2004 Michael Shalayeff
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR OR HIS RELATIVES 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 MIND, 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 _ISA_MACHDEP_H_
#define _ISA_MACHDEP_H_
/*
 * Types provided to machine-independent ISA code.
 */
typedef struct hppa_isa_chipset *isa_chipset_tag_t;

struct hppa_isa_chipset {
	void	*ic_v;

	void	(*ic_attach_hook)(struct device *, struct device *,
		    struct isabus_attach_args *);
	void	*(*ic_intr_establish)(void *, int, int, int,
		    int (*)(void *), void *, const char *);
	void	(*ic_intr_disestablish)(void *, void *);
	int	(*ic_intr_check)(void *, int, int);
};

/*
 * Functions provided to machine-independent ISA code.
 */
#define	isa_attach_hook(p, s, a)					\
    (*(a)->iba_ic->ic_attach_hook)((p), (s), (a))
#define	isa_intr_establish(c, i, t, l, f, a, nm)			\
    (*(c)->ic_intr_establish)((c)->ic_v, (i), (t), (l), (f), (a), (nm))
#define	isa_intr_disestablish(c, h)					\
    (*(c)->ic_intr_disestablish)((c)->ic_v, (h))
#define isa_intr_check(c, i, t)						\
    (*(c)->ic_intr_check)((c)->ic_v, (i), (t))

#endif /* _ISA_MACHDEP_H_ */