[PATCH] powerpc: Update OF address parsers
This updates the OF address parsers to return the IO flags
indicating the type of address obtained. It also adds a PCI
call for converting physical addresses that hit IO space into
into IO tokens, and add routines that return the translated
addresses into struct resource
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c
index 0aa1841..af36400 100644
--- a/arch/ppc/kernel/pci.c
+++ b/arch/ppc/kernel/pci.c
@@ -1805,6 +1805,21 @@
EXPORT_SYMBOL(pci_iomap);
EXPORT_SYMBOL(pci_iounmap);
+unsigned int pci_address_to_pio(phys_addr_t address)
+{
+ struct pci_controller* hose = hose_head;
+
+ for (; hose; hose = hose->next) {
+ unsigned int size = hose->io_resource.end -
+ hose->io_resource.start + 1;
+ if (address >= hose->io_base_phys &&
+ address < (hose->io_base_phys + size))
+ return (unsigned int)hose->io_base_virt +
+ (address - hose->io_base_phys);
+ }
+ return (unsigned int)-1;
+}
+EXPORT_SYMBOL(pci_address_to_pio);
/*
* Null PCI config access functions, for the case when we can't