hello!
what do you think about the following patch to clear PCI errors in config
accesses on the au1000 CPUs? if an error like "parity error" occurred and the
error is not cleared, all following config accesses will be reported as
errors (0xffffffff) too.
the diff is against 2.4.27 but the same thing is missing in 2.6 as well, i
believe.
greetings,
bruno
--- linux/arch/mips/au1000/common/pci_ops.c.orig 2005-08-24
17:36:25.000000000 +0200
+++ linux/arch/mips/au1000/common/pci_ops.c 2005-08-24 17:37:38.000000000
+0200
@@ -259,7 +259,11 @@
*data = 0xffffffff;
error = -1;
} else if ((status >> 28) & 0xf) {
- DBG("PCI ERR detected: status %x\n", status);
+ DBG("PCI ERR detected: device %d, status %x\n", device,
((status >> 28) & 0xf));
+
+ /* clear errors */
+ au_writel(status & 0xf000ffff, Au1500_PCI_STATCMD);
+
*data = 0xffffffff;
error = -1;
}
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