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Check the IOMD ID in the podulebus probe to make sure the IOMD supports 

a podulebus.
Make sure the podulebus driver conforms to the Acorn expansion card
specification:
  - Probe the podule bus using sync access cycles rather than slow access
    cycles.
  - Read the podulebus header/ROM using sync access cycles rather than slow
    access cycles
This commit is contained in:
mark 1996-11-23 03:42:39 +00:00
parent 37f3875ce4
commit 2883a694fa
1 changed files with 24 additions and 20 deletions
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44
sys/arch/arm32/podulebus/podulebus.c
View File

@ -1,7 +1,7 @@
/* $NetBSD: podulebus.c,v 1.16 1996/10/30 00:07:42 mark Exp $ */
/* $NetBSD: podulebus.c,v 1.17 1996/11/23 03:42:39 mark Exp $ */
/*
* Copyright (c) 1994,1995 Mark Brinicombe.
* Copyright (c) 1994-1996 Mark Brinicombe.
* Copyright (c) 1994 Brini.
* All rights reserved.
*
@ -56,8 +56,6 @@
#include <arm32/podulebus/podules.h>
#include <arm32/podulebus/podule_data.h>
#define IOMD_ID (ReadByte(IOMD_ID0) | (ReadByte(IOMD_ID1) << 8))
/* Array of podule structures, one per possible podule */
podule_t podules[MAX_PODULES + MAX_NETSLOTS];
@ -85,7 +83,12 @@ podulebusmatch(parent, match, aux)
void *match;
void *aux;
{
return (1);
switch (IOMD_ID) {
case RPC600_IOMD_ID:
case ARM7500_IOC_ID:
return(1);
}
return (0);
}
@ -165,6 +168,7 @@ dump_podule(podule)
printf("attached=%d ", podule->attached);
printf("slottype=%d ", podule->slottype);
printf("podulenum=%d ", podule->podulenum);
printf("description=%s ", podule->description);
printf("\n");
}
#endif
@ -184,21 +188,21 @@ podulechunkdirectory(podule)
address = 0x40;
do {
id = poduleread(podule->slow_base, address, podule->slottype);
size = poduleread(podule->slow_base, address + 4, podule->slottype);
size |= (poduleread(podule->slow_base, address + 8, podule->slottype) << 8);
size |= (poduleread(podule->slow_base, address + 12, podule->slottype) << 16);
id = poduleread(podule->sync_base, address, podule->slottype);
size = poduleread(podule->sync_base, address + 4, podule->slottype);
size |= (poduleread(podule->sync_base, address + 8, podule->slottype) << 8);
size |= (poduleread(podule->sync_base, address + 12, podule->slottype) << 16);
if (id == 0xf5) {
addr = poduleread(podule->slow_base, address + 16, podule->slottype);
addr |= (poduleread(podule->slow_base, address + 20, podule->slottype) << 8);
addr |= (poduleread(podule->slow_base, address + 24, podule->slottype) << 16);
addr |= (poduleread(podule->slow_base, address + 28, podule->slottype) << 24);
addr = poduleread(podule->sync_base, address + 16, podule->slottype);
addr |= (poduleread(podule->sync_base, address + 20, podule->slottype) << 8);
addr |= (poduleread(podule->sync_base, address + 24, podule->slottype) << 16);
addr |= (poduleread(podule->sync_base, address + 28, podule->slottype) << 24);
if (addr < 0x800 && done_f5 == 0) {
done_f5 = 1;
for (loop = 0; loop < size; ++loop) {
if (loop < PODULE_DESCRIPTION_LENGTH) {
podule->description[loop] =
poduleread(podule->slow_base, (addr + loop)*4, podule->slottype);
poduleread(podule->sync_base, (addr + loop)*4, podule->slottype);
podule->description[loop + 1] = 0;
}
}
@ -206,14 +210,14 @@ podulechunkdirectory(podule)
}
#if 0
if (id == 0xf5 || id == 0xf1 || id == 0xf2 || id == 0xf3 || id == 0xf4 || id == 0xf6) {
addr = poduleread(podule->slow_base, address + 16, podule->slottype);
addr |= (poduleread(podule->slow_base, address + 20, podule->slottype) << 8);
addr |= (poduleread(podule->slow_base, address + 24, podule->slottype) << 16);
addr |= (poduleread(podule->slow_base, address + 28, podule->slottype) << 24);
addr = poduleread(podule->sync_base, address + 16, podule->slottype);
addr |= (poduleread(podule->sync_base, address + 20, podule->slottype) << 8);
addr |= (poduleread(podule->sync_base, address + 24, podule->slottype) << 16);
addr |= (poduleread(podule->sync_base, address + 28, podule->slottype) << 24);
printf("<%04x.%04x.%04x.%04x>", id, address, addr, size);
if (addr < 0x800) {
for (loop = 0; loop < size; ++loop) {
printf("%c", poduleread(podule->slow_base, (addr + loop)*4, podule->slottype));
printf("%c", poduleread(podule->sync_base, (addr + loop)*4, podule->slottype));
}
printf("\\n\n");
}
@ -330,7 +334,7 @@ podulescan(dev)
for (loop = 0; loop < MAX_PODULES; ++loop, offset += SIMPLE_PODULE_SIZE) {
if (loop == 4) offset += PODULE_GAP;
address = ((u_char *)SLOW_PODULE_BASE) + offset;
address = ((u_char *)SYNC_PODULE_BASE) + offset;
podule = &podules[loop];