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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: xxboot.8,v 1.3 2007/05/31 19:20:04 jmc Exp $
.\"
.\" Copyright (c) 2006 Michael Shalayeff
.\" All rights reserved.
.\"
.\" 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 MIND, 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.
.\"
.Dd $Mdocdate: March 4 2008 $
.Dt XXBOOT 8 landisk
.Os
.Sh NAME
.Nm xxboot
.Nd
LANDISK-specific primary boot loader
.Sh DESCRIPTION
This small program, residing in the reserved sectors at the beginning
of the root file system of the system, is responsible for loading
the second-stage
.Xr boot 8
program (typically /boot), which in turn will load the kernel.
.Pp
To install (or update) the
.Nm
program, use
.Xr disklabel 8
with the
.Fl B
switch.
.Pp
When
.Nm
receives control from the master boot record (MBR) it will print a banner:
.Pp
.Dl OpenBSD MBR
.Pp
followed by a little twiddler while reading the second-stage boot.
.Sh FILES
.Bl -tag -width /usr/mdec/xxboot -compact
.It Pa /usr/mdec/mbr
Master Boot Record block
.It Pa /usr/mdec/xxboot
primary bootstrap
.It Pa /boot
secondary bootstrap
.It Pa /bsd
.Ox
kernel
.It Pa /bsd.rd
.Ox
kernel for installation/recovery
.El
.Sh DIAGNOSTICS
.Nm
will print messages indicating errors as returned from the firmware.
.Sh SEE ALSO
.Xr boot 8 ,
.Xr boot_landisk 8 ,
.Xr disklabel 8 ,
.Xr fdisk 8 ,
.Xr mbr 8