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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: autoconf.c,v 1.9 2007/06/01 19:25:10 deraadt Exp $	*/
/*	$NetBSD: autoconf.c,v 1.1 2006/09/01 21:26:18 uwe Exp $	*/

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#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/disklabel.h>
#include <sys/conf.h>
#include <sys/reboot.h>

#include <dev/cons.h>

#include <machine/cpu.h>
#include <machine/intr.h>

int cold = 1;

void
device_register(struct device *dev, void *aux)
{
}

void
cpu_configure(void)
{
	/* Start configuration */
	splhigh();
	softintr_init();
	intr_init();

	if (config_rootfound("mainbus", NULL) == NULL)
		panic("no mainbus found");

	/* Configuration is finished, turn on interrupts. */
	spl0();
	cold = 0;
}

void
diskconf(void)
{
	struct device *dv;
	dev_t tmpdev;

	dv = parsedisk("wd0a", strlen("wd0a"), 0, &tmpdev);
	setroot(dv, 0, RB_USERREQ);
	dumpconf();
}

struct nam2blk nam2blk[] = {
	{ "wd",		16 },
	{ "rd",		18 },
	{ "sd",		24 },
	{ NULL,		-1 }
};