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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: lm700x.h,v 1.2 2001/12/06 16:28:18 mickey Exp $	*/
/* $RuOBSD: lm700x.h,v 1.2 2001/10/18 16:51:36 pva Exp $ */

/*
 * Copyright (c) 2001 Vladimir Popov <jumbo@narod.ru>
 * 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 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 _LM700X_H_
#define _LM700X_H_

#include <sys/types.h>

#include <machine/bus.h>

#define LM700X_REGISTER_LENGTH	24

#define LM700X_DATA_MASK	0xFFC000
#define LM700X_FREQ_MASK	0x003FFF

#define LM700X_FREQ(x)		(x << 0)	/* 0x003FFF */
#define LM700X_LSI(x)		(x << 14)	/* 0x00C000 */ /* always zero */
#define LM700X_BAND(x)		(x << 16)	/* 0x070000 */
#define		LM700X_STEREO	LM700X_BAND(3)
#define		LM700X_MONO	LM700X_BAND(1)
#define LM700X_TIME_BASE(x)	(x << 19)	/* 0x080000 */ /* always zero */
#define LM700X_REF_FREQ(x)	(x << 20)	/* 0x700000 */
#define		LM700X_REF_100	LM700X_REF_FREQ(0)
#define		LM700X_REF_025	LM700X_REF_FREQ(2)
#define		LM700X_REF_050	LM700X_REF_FREQ(4)
/* The rest is for an AM band */

#define LM700X_DIVIDER_AM	(0 << 23)	/* 0x000000 */
#define LM700X_DIVIDER_FM	(1 << 23)	/* 0x800000 */

#define LM700X_WRITE_DELAY	6		/* 6 microseconds */

struct lm700x_t {
	bus_space_tag_t	iot;
	bus_space_handle_t	ioh;
	bus_size_t	offset;

	u_int32_t	wzcl;	/* write zero clock low */
	u_int32_t	wzch;	/* write zero clock high */
	u_int32_t	wocl;	/* write one clock low */
	u_int32_t	woch;	/* write one clock high */
	u_int32_t	initdata;
	u_int32_t	rsetdata;

	void (*init)(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t);
	void (*rset)(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t);
};

u_int32_t	lm700x_encode_freq(u_int32_t, u_int32_t);
u_int32_t	lm700x_encode_ref(u_int8_t);
u_int8_t	lm700x_decode_ref(u_int32_t);
void	lm700x_hardware_write(struct lm700x_t *, u_int32_t, u_int32_t);

#endif /* _LM700X_H_ */