NetBSD-5.0.2/sys/arch/alpha/alpha/avalon_a12.c
/* $NetBSD: avalon_a12.c,v 1.13 2006/02/25 17:32:43 thorpej Exp $ */
/* [Notice revision 2.2]
* Copyright (c) 1997, 1998 Avalon Computer Systems, Inc.
* All rights reserved.
*
* Author: Ross Harvey
*
* 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 and
* author 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. Neither the name of Avalon Computer Systems, Inc. nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. This copyright will be assigned to The NetBSD Foundation on
* 1/1/2000 unless these terms (including possibly the assignment
* date) are updated in writing by Avalon prior to the latest specified
* assignment date.
*
* THIS SOFTWARE IS PROVIDED BY AVALON COMPUTER SYSTEMS, INC. AND CONTRIBUTORS
* ``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 AVALON OR THE 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.
*/
/*
* Copyright (c) 1995, 1996, 1997 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 "opt_avalon_a12.h" /* Config options headers */
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: avalon_a12.c,v 1.13 2006/02/25 17:32:43 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/termios.h>
#include <sys/conf.h>
#include <dev/cons.h>
#include <machine/rpb.h>
#include <machine/autoconf.h>
#include <machine/cpuconf.h>
#include <machine/prom.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <alpha/pci/a12creg.h>
#include <alpha/pci/a12cvar.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsiconf.h>
#include "a12dc.h"
#if NA12DC
#include "alpha/a12/a12dcreg.h"
#endif
#ifdef __never
#define AVALON_A12() /* Generate ctags(1) key */
#endif
void avalon_a12_init __P((void));
static void avalon_a12_cons_init __P((void));
static void avalon_a12_device_register __P((struct device *, void *));
static int a12env __P((int));
void
avalon_a12_init()
{
platform.family = platform.model =
"Avalon A12 Scalable Parallel Processor";
platform.iobus = "a12c";
platform.cons_init = avalon_a12_cons_init;
platform.device_register = avalon_a12_device_register;
a12_cpu_local = a12env(A12CONS_CPU_LOCAL); /* our switch port */
a12_cpu_ether = a12env(A12CONS_CPU_ETHER); /* route to outside world */
a12_cpu_global= a12env(A12CONS_CPU_GLOBAL);/* loc in the big picture */
a12_intr_register_icw(NULL);
}
/*
* We _could_ get these configuration parameters directly from the
* detached console, and thereby nuke yet another deprecated prom
* call.
*/
static int
a12env(code)
int code;
{
int q;
char string[16];
prom_getenv(code, string, sizeof(string));
string[sizeof(string)-1] = '\0';
q = string[0] - '0';
if (string[0] && string[1] >= '0')
q = q*10 + string[1] - '0';
return q;
}
void
avalon_a12_cons_init()
{
#if NA12DC
a12dccnattach();
#endif
}
void
avalon_a12_device_register(dev, aux)
struct device *dev;
void *aux;
{
static int found, initted, diskboot, netboot;
static struct device *pcidev, *ctrlrdev;
struct bootdev_data *b = bootdev_data;
struct device *parent = device_parent(dev);
if (found)
return;
if (!initted) {
diskboot = (strcasecmp(b->protocol, "SCSI") == 0);
netboot = (strcasecmp(b->protocol, "BOOTP") == 0) ||
(strcasecmp(b->protocol, "MOP") == 0);
#if 0
printf("diskboot = %d, netboot = %d\n", diskboot, netboot);
#endif
initted =1;
}
if (pcidev == NULL) {
if (!device_is_a(dev, "pci"))
return;
else {
struct pcibus_attach_args *pba = aux;
if ((b->slot / 1000) != pba->pba_bus)
return;
pcidev = dev;
#if 0
printf("\npcidev = %s\n", dev->dv_xname);
#endif
return;
}
}
if (ctrlrdev == NULL) {
if (parent != pcidev)
return;
else {
struct pci_attach_args *pa = aux;
int slot;
slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
pa->pa_device;
if (b->slot != slot)
return;
if (netboot) {
booted_device = dev;
#if 0
printf("\nbooted_device = %s\n", dev->dv_xname);
#endif
found = 1;
} else {
ctrlrdev = dev;
#if 0
printf("\nctrlrdev = %s\n", dev->dv_xname);
#endif
}
return;
}
}
if (!diskboot)
return;
if (device_is_a(dev, "sd") ||
device_is_a(dev, "st") ||
device_is_a(dev, "cd")) {
struct scsipibus_attach_args *sa = aux;
struct scsipi_periph *periph = sa->sa_periph;
int unit;
if (device_parent(parent) != ctrlrdev)
return;
unit = periph->periph_target * 100 + periph->periph_lun;
if (b->unit != unit)
return;
if (b->channel != periph->periph_channel->chan_channel)
return;
/* we've found it! */
booted_device = dev;
#if 0
printf("\nbooted_device = %s\n", dev->dv_xname);
#endif
found = 1;
}
}