File: [local] / sys / arch / alpha / tc / mcclock_ioasic.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:44 2008 UTC (16 years, 6 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: mcclock_ioasic.c,v 1.6 2002/05/02 22:56:06 miod Exp $ */
/* $NetBSD: mcclock_ioasic.c,v 1.9 2000/07/04 02:37:51 nisimura Exp $ */
/*
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <dev/dec/clockvar.h>
#include <dev/dec/mcclockvar.h>
#include <dev/ic/mc146818reg.h>
#include <dev/tc/tcvar.h>
#include <dev/tc/ioasicvar.h> /* XXX */
struct mcclock_ioasic_clockdatum {
u_char datum;
char pad[3];
};
struct mcclock_ioasic_softc {
struct mcclock_softc sc_mcclock;
struct mcclock_ioasic_clockdatum *sc_dp;
};
int mcclock_ioasic_match(struct device *, void *, void *);
void mcclock_ioasic_attach(struct device *, struct device *, void *);
struct cfattach mcclock_ioasic_ca = {
sizeof (struct mcclock_ioasic_softc), mcclock_ioasic_match,
mcclock_ioasic_attach,
};
void mcclock_ioasic_write(struct mcclock_softc *, u_int, u_int);
u_int mcclock_ioasic_read(struct mcclock_softc *, u_int);
const struct mcclock_busfns mcclock_ioasic_busfns = {
mcclock_ioasic_write, mcclock_ioasic_read,
};
int
mcclock_ioasic_match(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct ioasicdev_attach_args *d = aux;
if (strncmp("TOY_RTC ", d->iada_modname, TC_ROM_LLEN))
return (0);
return (1);
}
void
mcclock_ioasic_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct ioasicdev_attach_args *ioasicdev = aux;
struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)self;
sc->sc_dp = (struct mcclock_ioasic_clockdatum *)ioasicdev->iada_addr;
mcclock_attach(&sc->sc_mcclock, &mcclock_ioasic_busfns);
}
void
mcclock_ioasic_write(dev, reg, datum)
struct mcclock_softc *dev;
u_int reg, datum;
{
struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)dev;
sc->sc_dp[reg].datum = datum;
}
u_int
mcclock_ioasic_read(dev, reg)
struct mcclock_softc *dev;
u_int reg;
{
struct mcclock_ioasic_softc *sc = (struct mcclock_ioasic_softc *)dev;
return (sc->sc_dp[reg].datum);
}