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On-board devices on psycho machines seem to have the `interrupt' property

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in the parent bus format (i.e. an INO) rather than being represented as
an PCI interrupt line. Provide a hack to work around this in pci_attach_hook().
This commit is contained in:
pk 2000-07-26 17:46:56 +00:00
parent afc4006d53
commit 2079f86890
1 changed files with 21 additions and 1 deletions
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22
sys/arch/sparc64/dev/pci_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: pci_machdep.c,v 1.14 2000/07/18 11:37:31 pk Exp $ */
/* $NetBSD: pci_machdep.c,v 1.15 2000/07/26 17:46:56 pk Exp $ */
/*
* Copyright (c) 1999, 2000 Matthew R. Green
@ -189,6 +189,7 @@ pci_attach_hook(parent, self, pba)
continue;
DPRINTF(SPDB_INTFIX, ("... BINGO! ..."));
bingo:
/*
* OK! we found match. pull out the old interrupt
* register, patch in the new value, and put it back.
@ -203,6 +204,25 @@ pci_attach_hook(parent, self, pba)
DPRINTF((SPDB_INTFIX|SPDB_INTMAP), ("\n\t ; reread %x from intreg", intr));
break;
}
if (i == pp->pp_nintmap) {
/*
* Not matched by parent interrupt map. If the
* interrupt property has the INTMAP_OBIO bit
* set, assume the PROM has (wrongly) supplied it
* in the parent's bus format, rather than as a
* PCI interrupt line number.
*
* This seems to be an issue only with the
* psycho host-to-pci bridge.
*/
if (pp->pp_sc->sc_mode == PSYCHO_MODE_PSYCHO &&
(*ip & INTMAP_OBIO) != 0) {
DPRINTF((SPDB_INTFIX|SPDB_INTMAP),
("\n\t; PSYCHO: no match but obio interrupt in parent format"));
i = -1; goto bingo; /* XXX - hackish.. */
}
}
/* enable mem & dma if not already */
pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG,