File: [local] / sys / arch / mvme88k / dev / memc.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:37 2008 UTC (16 years, 5 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: memc.c,v 1.13 2006/11/16 23:21:56 miod Exp $ */
/*
* Copyright (c) 1995 Theo de Raadt
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
*/
/*
* MEMC/MCECC chips
* these chips are rather similar in appearance except that the MEMC
* does parity while the MCECC does ECC.
*/
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <sys/tty.h>
#include <sys/uio.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
#include <sys/fcntl.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <dev/cons.h>
#include <mvme88k/dev/memcreg.h>
struct memcsoftc {
struct device sc_dev;
struct memcreg *sc_memc;
struct intrhand sc_ih;
};
void memcattach(struct device *, struct device *, void *);
int memcmatch(struct device *, void *, void *);
struct cfattach memc_ca = {
sizeof(struct memcsoftc), memcmatch, memcattach
};
struct cfdriver memc_cd = {
NULL, "memc", DV_DULL
};
#if 0
int memcintr(void *);
#endif
int
memcmatch(parent, vcf, args)
struct device *parent;
void *vcf, *args;
{
struct confargs *ca = args;
struct memcreg *memc = (struct memcreg *)ca->ca_paddr;
if (badaddr((vaddr_t)memc, 4))
return (0);
if (memc->memc_chipid==MEMC_CHIPID || memc->memc_chipid==MCECC_CHIPID)
return (1);
return (0);
}
void
memcattach(parent, self, args)
struct device *parent, *self;
void *args;
{
struct confargs *ca = args;
struct memcsoftc *sc = (struct memcsoftc *)self;
sc->sc_memc = (struct memcreg *)ca->ca_paddr;
printf(": %s rev %d",
(sc->sc_memc->memc_chipid == MEMC_CHIPID) ? "MEMC040" : "MCECC",
sc->sc_memc->memc_chiprev);
#if 0
sc->sc_ih.ih_fn = memcintr;
sc->sc_ih.ih_arg = 0;
sc->sc_ih.ih_wantframe = 1;
sc->sc_ih.ih_ipl = 7;
mcintr_establish(xxx, &sc->sc_ih, self->dv_xname);
#endif
switch (sc->sc_memc->memc_chipid) {
case MEMC_CHIPID:
break;
case MCECC_CHIPID:
break;
}
printf("\n");
}
#if 0
int
memcintr(eframe)
void *eframe;
{
return (0);
}
#endif