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/* $OpenBSD: autoconf.c,v 1.3 2000/10/04 04:09:00 bjc Exp $ */
/* $NetBSD: autoconf.c,v 1.5 1999/08/23 19:09:27 ragge Exp $ */
/*
* Copyright (c) 1994, 1998 Ludd, University of Lule}, Sweden.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed at Ludd, University of Lule}.
* 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.
*/
/* All bugs are subject to removal without further notice */
#include "sys/param.h"
#include "../../include/mtpr.h"
#include "../../include/sid.h"
#include "../../include/trap.h"
#include "../../include/frame.h"
#include "vaxstand.h"
extern const struct ivec_dsp idsptch; /* since we are not KERNEL */
int nmba=0, nuba=0, nbi=0,nsbi=0,nuda=0;
int *mbaaddr, *ubaaddr, *biaddr;
int *udaaddr, *uioaddr, tmsaddr, *bioaddr;
static int mba750[]={0xf28000,0xf2a000,0xf2c000};
static int uba750[]={0xf30000,0xf32000};
static int uio750[]={0xfc0000,0xf80000};
static int uda750[]={0772150};
/* 11/780's only have 4, 8600 have 8 of these. */
/* XXX - all of these should be bound to physical addresses */
static int mba780[]={0x20010000,0x20012000,0x20014000,0x20016000,
0x22010000,0x22012000,0x22014000,0x22016000};
static int uba780[]={0, 0, 0, 0x20006000,0x20008000,0x2000a000,0x2000c000, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0x22006000,0x22008000,0x2200a000,0x2200c000};
static int uio780[]={0, 0, 0, 0x20100000,0x20140000,0x20180000,0x201c0000, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0x22100000,0x22140000,0x22180000,0x221c0000};
static int bi8200[]={0x20000000, 0x22000000, 0x24000000, 0x26000000,
0x28000000, 0x2a000000};
static int bio8200[]={0x20400000};
static int uba630[]={0x20087800};
static int uio630[]={0x30000000};
#define qbdev(csr) (((csr) & 017777)-0x10000000)
static int uda630[]={qbdev(0772150),qbdev(0760334)};
static int uba670[]={0x20040000};
static int uio670[]={0x20000000};
static int uda670[]={0x20004030,0x20004230};
#define qb670dev(csr) (((csr) & 017777)+0x20000000)
/*
* Autoconf routine is really stupid; but it actually don't
* need any intelligence. We just assume that all possible
* devices exists on each cpu. Fast & easy.
*/
autoconf()
{
extern int memsz;
int copyrpb = 1;
findcpu(); /* Configures CPU variables */
consinit(); /* Allow us to print out things */
scbinit(); /* Fix interval clock etc */
switch (vax_boardtype) {
default:
printf("\nCPU type %d not supported by boot\n",vax_cputype);
printf("trying anyway...\n");
break;
case VAX_BTYP_780:
case VAX_BTYP_790:
memsz = 0;
nmba = 8;
nuba = 32; /* XXX */
nuda = 1;
mbaaddr = mba780;
ubaaddr = uba780;
udaaddr = uda750;
uioaddr = uio780;
tmsaddr = 0774500;
break;
case VAX_BTYP_750:
memsz = 0;
nmba = 3;
nuba = 2;
nuda = 1;
mbaaddr = mba750;
ubaaddr = uba750;
udaaddr = uda750;
uioaddr = uio750;
tmsaddr = 0774500;
break;
case VAX_BTYP_630: /* the same for uvaxIII */
case VAX_BTYP_650:
case VAX_BTYP_660:
case VAX_BTYP_670:
nuba = 1;
nuda = 2;
ubaaddr = uba630;
udaaddr = uda630;
uioaddr = uio630;
tmsaddr = qbdev(0774500);
break;
case VAX_BTYP_8000:
copyrpb = 0;
memsz = 0;
nbi = 1;
biaddr = bi8200;
bioaddr = bio8200;
break;
case VAX_BTYP_46:
case VAX_BTYP_48:
{int *map, i;
/* Map all 16MB of I/O space to low 16MB of memory */
map = (int *)0x700000; /* XXX */
*(int *)0x20080008 = (int)map; /* XXX */
for (i = 0; i < 0x8000; i++)
map[i] = 0x80000000 | i;
}break;
case VAX_BTYP_410:
case VAX_BTYP_420:
case VAX_BTYP_43:
case VAX_BTYP_49:
break;
}
}
/*
* Clock handling routines, needed to do timing in standalone programs.
*/
volatile int tickcnt;
getsecs()
{
volatile int loop;
int todr;
return tickcnt/100;
}
void scb_stray(), rtimer();
struct ivec_dsp **scb;
struct ivec_dsp *scb_vec;
/*
* Init the SCB and set up a handler for all vectors in the lower space,
* to detect unwanted interrupts.
*/
scbinit()
{
extern int timer;
int i;
/*
* Allocate space. We need one page for the SCB, and 128*16 == 2k
* for the vectors. The SCB must be on a page boundary.
*/
i = alloc(VAX_NBPG * 6) + VAX_PGOFSET;
i &= ~VAX_PGOFSET;
mtpr(i, PR_SCBB);
scb = (void *)i;
scb_vec = (struct ivec_dsp *)(i + VAX_NBPG);
for (i = 0; i < 128; i++) {
scb[i] = &scb_vec[i];
(int)scb[i] |= 1; /* Only interrupt stack */
memcpy(&scb_vec[i], &idsptch, sizeof(struct ivec_dsp));
scb_vec[i].hoppaddr = scb_stray;
}
scb_vec[0xc0/4].hoppaddr = rtimer;
mtpr(-10000, PR_NICR); /* Load in count register */
mtpr(0x800000d1, PR_ICCS); /* Start clock and enable interrupt */
mtpr(20, PR_IPL);
}
extern int jbuf[10];
extern int sluttid, senast, skip;
void
rtimer()
{
mtpr(31, PR_IPL);
tickcnt++;
mtpr(0xc1, PR_ICCS);
if (skip)
return;
if ((vax_boardtype == VAX_BTYP_46) ||
(vax_boardtype == VAX_BTYP_48) ||
(vax_boardtype == VAX_BTYP_49)) {
int nu = sluttid - getsecs();
if (senast != nu) {
mtpr(20, PR_IPL);
longjmp(jbuf);
}
}
}
asm("
.globl _idsptch, _eidsptch
_idsptch:
pushr $0x3f
pushl $1
.long 0x9f01fb01
.long 0x12345678
#
# gas do not accept this :-/ use hexcode instead
# nop
# calls $1, *$0x12345678
popr $0x3f
rei
_eidsptch:
");
/*
* Stray interrupt handler.
* This function must _not_ save any registers (in the reg save mask).
*/
void
scb_stray(arg)
int arg;
{
static struct callsframe *cf;
static int vector, ipl, *a;
cf = FRAMEOFFSET(arg);
a = &cf->ca_arg1;
ipl = mfpr(PR_IPL);
vector = ((cf->ca_pc - (u_int)scb_vec)/4) & ~3;
printf("stray interrupt: pc %x vector 0x%x, ipl %d\n",
cf->ca_pc, vector, ipl);
}
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