[src/trunk]: src/sys/arch/sparc64/dev Turn on parity checking for the PCI bus.

[eeh <eeh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/9208ace2c342
branches:  trunk
changeset: 533379:9208ace2c342
user:      eeh <eeh%NetBSD.org@localhost>
date:      Sat Jun 29 02:35:22 2002 +0000

description:
Turn on parity checking for the PCI bus.

diffstat:

 sys/arch/sparc64/dev/pci_machdep.c |  23 +++++++++++++++++++++--
 1 files changed, 21 insertions(+), 2 deletions(-)

diffs (52 lines):

diff -r 5f27c5935311 -r 9208ace2c342 sys/arch/sparc64/dev/pci_machdep.c
--- a/sys/arch/sparc64/dev/pci_machdep.c        Sat Jun 29 01:43:05 2002 +0000
+++ b/sys/arch/sparc64/dev/pci_machdep.c        Sat Jun 29 02:35:22 2002 +0000
@@ -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 @@
        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 @@
                }
 
                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);