File: [local] / sys / arch / arm / mainbus / mainbus.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:05:07 2008 UTC (16 years, 4 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
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)
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/* $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);
}