Matt Ragan <mragan@uk.tivoli.com> writes:

> I'm using it on a Thinkpad 770Z with a 3C575, and it works fine as
> long as it is in slot 0.

Try this (arch/i386/i386/rbus_machdep.c):

--- rbus_machdep.c	1999/10/15 06:43:06	1.2
+++ rbus_machdep.c	1999/11/12 18:10:55
@@ -131,7 +131,7 @@
 rbus_pccbb_parent_mem(pa)
      struct pci_attach_args *pa;
 {
-  bus_addr_t start =  0x40000000; /* 1 GB */
+  bus_addr_t start =  0x20000000;
   bus_size_t size =  0x08000000; /* 128 MB */
   bus_space_handle_t memh;	/* fake */
 

/Johan