Index: drivers/message/i2o/pci.c
===================================================================
--- a/drivers/message/i2o/pci.c	(revision 115)
+++ b/drivers/message/i2o/pci.c	(revision 118)
@@ -133,6 +133,21 @@
 			if (!c->base.phys) {
 				c->base.phys = pci_resource_start(pdev, i);
 				c->base.len = pci_resource_len(pdev, i);
+
+				/*
+				 * If we know what card it is, set the size
+				 * correctly. Code is taken from dpt_i2o.c
+				 */
+				if(pdev->device == 0xa501) {
+					if(pdev->subsystem_device >= 0xc032 &&
+					   pdev->subsystem_device <= 0xc03b) {
+						if(c->base.len > 0x400000)
+							c->base.len = 0x400000;
+					} else {
+						if(c->base.len > 0x100000)
+							c->base.len = 0x100000;
+					}
+				}
 				if (!c->raptor)
 					break;
 			} else {