Return to mainbus.c CVS log

Up to [local] / sys / arch / arm / mainbus

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: mainbus.c,v 1.3 2005/12/31 23:03:58 drahn Exp $	*/
/* $NetBSD: mainbus.c,v 1.3 2001/06/13 17:52:43 nathanw Exp $ */

/*
 * Copyright (c) 1994,1995 Mark Brinicombe.
 * Copyright (c) 1994 Brini.
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Brini.
 * 4. The name of the company nor the name of the author may be used to
 *    endorse or promote products derived from this software without specific
 *    prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI OR CONTRIBUTORS 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.
 *
 * RiscBSD kernel project
 *
 * mainbus.c
 *
 * mainbus configuration
 *
 * Created      : 15/12/94
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/device.h>

#if defined(arm32)		/* XXX */
#include <machine/io.h>
#endif
#include <machine/bus.h>
#include <arm/mainbus/mainbus.h>
/*
#include "locators.h"
*/

/*
 * mainbus is a root device so we a bus space tag to pass to children
 *
 * The tag is provided by mainbus_io.c and mainbus_io_asm.S
 */

extern struct bus_space mainbus_bs_tag;

/* Prototypes for functions provided */

int  mainbusmatch  (struct device *, void *, void *);
void mainbusattach (struct device *, struct device *, void *);
int  mainbusprint  (void *aux, const char *mainbus);
int mainbussearch (struct device *,  void *, void *);

/* attach and device structures for the device */

struct cfattach mainbus_ca = {
	sizeof(struct device), mainbusmatch, mainbusattach
};

struct cfdriver mainbus_cd = {
	NULL, "mainbus", DV_DULL
};

/*
 * int mainbusmatch(struct device *parent, struct cfdata *cf, void *aux)
 *
 * Always match for unit 0
 */

int
mainbusmatch(struct device *parent, void *cf, void *aux)
{
	return (1);
}

/*
 * void mainbusattach(struct device *parent, struct device *self, void *aux)
 *
 * probe and attach all children
 */

void
mainbusattach(struct device *parent, struct device *self, void *aux)
{
	printf("\n");

	config_search(mainbussearch, self, self);
}

int
mainbussearch(struct device *parent, void *c, void *aux)
{
	struct mainbus_attach_args ma;
	struct cfdata *cf = c;


	ma.ma_iot = &mainbus_bs_tag;
	ma.ma_name = cf->cf_driver->cd_name;

	config_found(parent, &ma, mainbusprint);

	return 1;
}

/*
 * int mainbusprint(void *aux, const char *mainbus)
 *
 * print routine used during config of children
 */

int
mainbusprint(void *aux, const char *mainbus)
{
/* XXXX print flags */
	return (QUIET);
}