NetBSD-5.0.2/sys/arch/alpha/alpha/dec_2100_a500.c
/* $NetBSD: dec_2100_a500.c,v 1.18 2008/04/28 20:23:10 martin Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* 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 NETBSD FOUNDATION, 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 THE FOUNDATION 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.
*/
/*
* 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_kgdb.h"
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: dec_2100_a500.c,v 1.18 2008/04/28 20:23:10 martin 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/bus.h>
#include <machine/alpha.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/ic/i8042reg.h>
#include <dev/ic/pckbcvar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <alpha/pci/ttwogareg.h>
#include <alpha/pci/ttwogavar.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsiconf.h>
#include "pckbd.h"
#ifndef CONSPEED
#define CONSPEED TTYDEF_SPEED
#endif
static int comcnrate = CONSPEED;
void _dec_2100_a500_init(void);
static void dec_2100_a500_cons_init(void);
static void dec_2100_a500_device_register(struct device *, void *);
static void dec_2100_a500_machine_check(unsigned long, struct trapframe *,
unsigned long, unsigned long);
#ifdef KGDB
#include <machine/db_machdep.h>
static const char *kgdb_devlist[] = {
"com",
NULL,
};
#endif /* KGDB */
void
_dec_2100_a500_init(void)
{
switch (cputype) {
case ST_DEC_2100_A500:
if (alpha_implver() == ALPHA_IMPLVER_EV5)
platform.family = "AlphaServer 2100 (\"Sable-Gamma\")";
else
platform.family = "AlphaServer 2100 (\"Sable\")";
break;
case ST_DEC_2100A_A500:
platform.family = "AlphaServer 2100A (\"Lynx\")";
break;
default:
panic("dec_2100_a500_init: Not a Sable, Sable-Gamma, or Lynx?");
}
if ((platform.model = alpha_dsr_sysname()) == NULL) {
/* XXX don't know variations yet */
platform.model = alpha_unknown_sysname();
}
platform.iobus = "ttwoga";
platform.cons_init = dec_2100_a500_cons_init;
platform.device_register = dec_2100_a500_device_register;
platform.mcheck_handler = dec_2100_a500_machine_check;
}
static void
dec_2100_a500_cons_init(void)
{
struct ctb *ctb;
u_int64_t ctbslot;
struct ttwoga_config *tcp;
ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
ctbslot = ctb->ctb_turboslot;
tcp = ttwoga_init(0, 0);
switch (ctb->ctb_term_type) {
case CTB_PRINTERPORT:
/* serial console ... */
assert(CTB_TURBOSLOT_HOSE(ctbslot) == 0);
/* XXX */
{
/*
* Delay to allow PROM putchars to complete.
* FIFO depth * character time,
* character time = (1000000 / (defaultrate / 10))
*/
DELAY(160000000 / comcnrate);
if(comcnattach(&tcp->tc_iot, 0x3f8, comcnrate,
COM_FREQ, COM_TYPE_NORMAL,
(TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
panic("can't init serial console");
break;
}
case CTB_GRAPHICS:
#if NPCKBD > 0
/* display console ... */
/* XXX */
(void) pckbc_cnattach(&tcp->tc_iot, IO_KBD, KBCMDP,
PCKBC_KBD_SLOT);
switch (CTB_TURBOSLOT_TYPE(ctbslot)) {
case CTB_TURBOSLOT_TYPE_ISA:
/*
* XXX The following is apparently necessary for an
* XXX ISA VGA card, but what happens with real EISA
* XXX VGA cards?
*/
case CTB_TURBOSLOT_TYPE_EISA:
isa_display_console(&tcp->tc_iot, &tcp->tc_memt);
break;
case CTB_TURBOSLOT_TYPE_PCI:
/* The display PCI might be different */
tcp = ttwoga_init(0, CTB_TURBOSLOT_HOSE(ctbslot));
pci_display_console(&tcp->tc_iot, &tcp->tc_memt,
&tcp->tc_pc, CTB_TURBOSLOT_BUS(ctbslot),
CTB_TURBOSLOT_SLOT(ctbslot), 0);
break;
default:
printf("type = 0x%lx, hose = 0x%lx, bus = 0x%lx, "
"slot = 0x%lx\n",
CTB_TURBOSLOT_TYPE(ctbslot),
CTB_TURBOSLOT_HOSE(ctbslot),
CTB_TURBOSLOT_BUS(ctbslot),
CTB_TURBOSLOT_SLOT(ctbslot));
panic("unknown display console type");
}
#else
panic("not configured to use display && keyboard console");
#endif
break;
default:
printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
panic("consinit: unknown console type %ld",
ctb->ctb_term_type);
}
#ifdef KGDB
/* Attach the KGDB device. */
alpha_kgdb_init(kgdb_devlist, &tcp->tc_iot);
#endif /* KGDB */
}
static void
dec_2100_a500_device_register(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;
}
}
/*
* Sable, Sable-Gamma, and Lynx machine check handlers.
*/
static void
dec_2100_a500_machine_check(unsigned long mces, struct trapframe *framep,
unsigned long vector, unsigned long param)
{
struct mchkinfo *mcp = &curcpu()->ci_mcinfo;
/*
* This is a work-around for a T2 core logic bug. See
* alpha/pci/ttwoga_pci.c.
*/
if (ttwoga_conf_cpu == cpu_number())
mcp->mc_expected = 1;
machine_check(mces, framep, vector, param);
}