* ranges. However, some machines (thanks Apple !) tend to split their
* space into lots of small contiguous ranges. So we have to coalesce.
*
- * - We can only cope with all memory ranges having the same offset
- * between CPU addresses and PCI addresses. Unfortunately, some bridges
- * are setup for a large 1:1 mapping along with a small "window" which
- * maps PCI address 0 to some arbitrary high address of the CPU space in
- * order to give access to the ISA memory hole.
- * The way out of here that I've chosen for now is to always set the
- * offset based on the first resource found, then override it if we
- * have a different offset and the previous was set by an ISA hole.
- *
* - Some busses have IO space not starting at 0, which causes trouble with
* the way we do our IO resource renumbering. The code somewhat deals with
* it for 64 bits but I would expect problems on 32 bits.
int rlen;
int pna = of_n_addr_cells(dev);
int np = pna + 5;
- int memno = 0, isa_hole = -1;
+ int memno = 0;
u32 pci_space;
unsigned long long pci_addr, cpu_addr, pci_next, cpu_next, size;
- unsigned long long isa_mb = 0;
struct resource *res;
printk(KERN_INFO "PCI host bridge %s %s ranges:\n",
}
/* Handles ISA memory hole space here */
if (pci_addr == 0) {
- isa_mb = cpu_addr;
- isa_hole = memno;
if (primary || isa_mem_base == 0)
isa_mem_base = cpu_addr;
hose->isa_mem_phys = cpu_addr;
for (i = 0; i < 3; ++i) {
res = &hose->mem_resources[i];
if (!res->flags) {
- printk(KERN_ERR "PCI: Memory resource 0 not set for "
- "host bridge %s (domain %d)\n",
- hose->dn->full_name, hose->global_number);
+ if (i == 0)
+ printk(KERN_ERR "PCI: Memory resource 0 not set for "
+ "host bridge %s (domain %d)\n",
+ hose->dn->full_name, hose->global_number);
continue;
}
offset = hose->mem_offset[i];