From 0560ab59413199c02abb5733434569a07f2009e5 Mon Sep 17 00:00:00 2001
From: Blue Swirl <blauwirbel@gmail.com>
Date: Sat, 17 Jan 2009 19:02:38 +0000
Subject: [PATCH] Fix PCI I/O ports allocation (Aurelien Jarno)

git-svn-id: svn://coreboot.org/openbios/openbios-devel@416 f158a5a8-5612-0410-a976-696ce0be7e32
---
 drivers/pci.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pci.c b/drivers/pci.c
index 5d48420..00b79a2 100644
--- a/drivers/pci.c
+++ b/drivers/pci.c
@@ -760,7 +760,9 @@ int ob_pci_init(void)
 	/* Find all PCI bridges */
 
 	mem_base = arch->mem_base;
-	io_base = arch->io_base;
+        /* I/O ports under 0x400 are used by devices mapped at fixed
+           location. */
+        io_base = arch->io_base + 0x400;
 	path = strdup("");
 	for (bus = 0; bus<0x100; bus++) {
 		ob_scan_pci_bus(bus, &mem_base, &io_base, &path);