Re: [PROBLEM] D-Link DFE-580TX: Only 3 Ports working

Ivan Kokshaysky (ink@jurassic.park.msu.ru)
Mon, 25 Nov 2002 20:18:03 +0300


On Mon, Nov 25, 2002 at 04:11:49PM +0100, Richard Mueller wrote:
> eth5: D-Link DFE-580TX 4 port Server Adapter at 0xbe00, 00:00:00:00:00:00, IRQ 20.
^^^^
It's clear BIOS bug. All four controllers are sitting behind PCI-to-PCI
bridge which blocks IO access to the ranges 0xb100-0xb3ff, 0xb500-0xb7ff,
0xb900-0xbbff and 0xbd00-0xbfff due to PCI_BRIDGE_CTL_NO_ISA mode.

Does this patch help?

Ivan.

--- linux/arch/i386/kernel/pci-i386.c~ Thu Nov 21 20:34:54 2002
+++ linux/arch/i386/kernel/pci-i386.c Mon Nov 25 20:04:38 2002
@@ -223,9 +223,19 @@ static void __init pcibios_allocate_reso
continue;
if (!r->start) /* Address not assigned at all */
continue;
- if (r->flags & IORESOURCE_IO)
+ if (r->flags & IORESOURCE_IO) {
disabled = !(command & PCI_COMMAND_IO);
- else
+ if ((r->start & 0x300) && r->start > 0x400) {
+ printk(KERN_ERR "PCI: bad alignment "
+ "of IO region %d [%04lx] of "
+ "device %s\n",
+ idx, r->start, dev->slot_name);
+ /* We'll assign a new address later */
+ r->end -= r->start;
+ r->start = 0;
+ continue;
+ }
+ } else
disabled = !(command & PCI_COMMAND_MEMORY);
if (pass == disabled) {
DBG("PCI: Resource %08lx-%08lx (f=%lx, d=%d, p=%d)\n",
-
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