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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: onewirereg.h,v 1.1 2006/03/04 16:27:03 grange Exp $	*/

/*
 * Copyright (c) 2006 Alexander Yurchenko <grange@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _DEV_ONEWIRE_ONEWIREREG_H_
#define _DEV_ONEWIRE_ONEWIREREG_H_

/*
 * 1-Wire bus protocol definitions.
 */

/*
 * 64-bit ROM section.
 */

/* Family code */
#define ONEWIRE_ROM_FAMILY(x)		((x) & 0xff)
#define ONEWIRE_ROM_FAMILY_TYPE(x)	((x) & 0x7f)
#define ONEWIRE_ROM_FAMILY_CUSTOM(x)	(((x) >> 7) & 0x1)

/* Serial number */
#define ONEWIRE_ROM_SN(x)		(((x) >> 8) & 0xffffffffffffULL)

/* CRC */
#define ONEWIRE_ROM_CRC(x)		(((x) >> 56) & 0xff)

/*
 * Command set.
 */

/* ROM commands */
#define ONEWIRE_CMD_READ_ROM		0x33
#define ONEWIRE_CMD_SKIP_ROM		0xcc
#define ONEWIRE_CMD_MATCH_ROM		0x55
#define ONEWIRE_CMD_SEARCH_ROM		0xf0
#define ONEWIRE_CMD_OVERDRIVE_SKIP_ROM	0x3c
#define ONEWIRE_CMD_OVERDRIVE_MATCH_ROM	0x69

/* Scratchpad commands */
#define ONEWIRE_CMD_READ_SCRATCHPAD	0xaa
#define ONEWIRE_CMD_WRITE_SCRATCHPAD	0x0f
#define ONEWIRE_CMD_COPY_SCRATCHPAD	0x55

/* Memory commands */
#define ONEWIRE_CMD_READ_MEMORY		0xf0
#define ONEWIRE_CMD_WRITE_MEMORY	0x0f
#define ONEWIRE_CMD_EXT_READ_MEMORY	0xa5

/* Password commands */
#define ONEWIRE_CMD_READ_SUBKEY		0x66
#define ONEWIRE_CMD_WRITE_SUBKEY	0x99
#define ONEWIRE_CMD_WRITE_PASSWORD	0x5a

/* Status commands */
#define ONEWIRE_CMD_READ_STATUS		0xaa
#define ONEWIRE_CMD_WRITE_STATUS	0x55

#endif	/* !_DEV_ONEWIRE_ONEWIREREG_H_ */