File: [local] / sys / arch / mvmeppc / dev / raven.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:44 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: raven.c,v 1.6 2004/05/14 20:38:32 miod Exp $ */
/*
* Copyright (c) 2001 Steve Murphree, Jr.
*
* 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 under OpenBSD for RTMX Inc
* by Per Fogelstrom, Opsycon AB.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
*/
/*
* Motorola 'Raven' ASIC driver.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <uvm/uvm_extern.h>
#include <machine/autoconf.h>
#include <mvmeppc/dev/ravenreg.h>
#include <mvmeppc/dev/ravenvar.h>
int raven_match(struct device *, void *, void *);
void raven_attach(struct device *, struct device *, void *);
struct cfattach raven_ca = {
sizeof(struct raven_softc), raven_match, raven_attach,
};
struct cfdriver raven_cd = {
NULL, "raven", DV_DULL,
};
int
raven_match(struct device *parent, void *match, void *aux)
{
struct confargs *ca = aux;
void *va;
u_int32_t probe;
if (strcmp(ca->ca_name, raven_cd.cd_name) != 0)
return 0;
if ((va = mapiodev((paddr_t)RAVEN_BASE, RAVEN_SIZE)) == NULL)
return 0;
/* check for a live address */
if (badaddr(va, 4) != 0) {
unmapiodev(va, RAVEN_SIZE);
return 0;
}
/* now check and see if it's a raven ASIC */
probe = *(u_int32_t*)va;
unmapiodev((void *)va, RAVEN_SIZE);
if (probe != RAVEN_MAGIC)
return 0;
return 1;
}
/* need to be global for mpcpcibr.c - XXX */
u_int8_t *ravenregs;
void
raven_attach(struct device *parent, struct device *self, void *aux)
{
struct raven_softc *sc = (void *)self;
/*
* Map Raven registers and MPCIC
*
* XXX steal them from devio_ex as well!
*/
ravenregs = sc->sc_regs = mapiodev((paddr_t)RAVEN_BASE, RAVEN_SIZE);
if (sc->sc_regs == NULL) {
printf(": can't map registers!\n");
return;
}
/* set system type */
system_type = MVME; /* We are a Motorola MVME SBC */
printf(": version 0x%x\n", sc->sc_regs[RAVEN_REVID]);
while (config_found(self, NULL, NULL))
;
}