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Turn on parity checking for the PCI bus.

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This commit is contained in:
eeh 2002-06-29 02:35:22 +00:00
parent 0dadbe49d2
commit c05c5884e6
1 changed files with 21 additions and 2 deletions
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23
sys/arch/sparc64/dev/pci_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: pci_machdep.c,v 1.31 2002/05/16 20:28:33 eeh Exp $ */
/* $NetBSD: pci_machdep.c,v 1.32 2002/06/29 02:35:22 eeh Exp $ */
/*
* Copyright (c) 1999, 2000 Matthew R. Green
@ -247,15 +247,24 @@ pci_enumerate_bus(struct pci_softc *sc,
struct ofw_pci_register reg;
pci_chipset_tag_t pc = sc->sc_pc;
pcitag_t tag;
pcireg_t class;
pcireg_t class, csr;
int node, b, d, f, ret;
char name[30];
extern int pci_config_dump;
if (sc->sc_bridgetag)
node = PCITAG_NODE(*sc->sc_bridgetag);
else
node = pc->rootnode;
/* Turn on parity for the bus. */
tag = ofpci_make_tag(pc, node, sc->sc_bus, 0, 0);
csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
csr |= PCI_COMMAND_PARITY_ENABLE;
pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, csr);
if (pci_config_dump) pci_conf_print(pc, tag, NULL);
for (node = OF_child(node); node != 0 && node != -1;
node = OF_peer(node)) {
name[0] = name[29] = 0;
@ -278,6 +287,16 @@ pci_enumerate_bus(struct pci_softc *sc,
}
tag = ofpci_make_tag(pc, node, b, d, f);
/*
* Turn on parity and fast-back-to-back for the device.
*/
csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
if (csr & PCI_STATUS_BACKTOBACK_SUPPORT)
csr |= PCI_COMMAND_BACKTOBACK_ENABLE;
csr |= PCI_COMMAND_PARITY_ENABLE;
pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, csr);
ret = pci_probe_device(sc, tag, match, pap);
if (match != NULL && ret != 0)
return (ret);