[POWERPC] Make endianess of cfg_addr for indirect pci ops runtime

Make it so we do a runtime check to know if we need to write cfg_addr
as big or little endian.  This is needed if we want to allow 86xx support
to co-exist in the same kernel as other 6xx PPCs.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
index 13cb0a973478..9ce8f2991acf 100644
--- a/include/asm-powerpc/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h
@@ -49,11 +49,13 @@ struct pci_controller {
          *   hanging if we don't have link and try to do config cycles to
          *   anything but the PHB.  Only allow talking to the PHB if this is
          *   set.
+         *  BIG_ENDIAN - cfg_addr is a big endian register
          */
 #define PPC_INDIRECT_TYPE_SET_CFG_TYPE          (0x00000001)
 #define PPC_INDIRECT_TYPE_EXT_REG               (0x00000002)
 #define PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS  (0x00000004)
 #define PPC_INDIRECT_TYPE_NO_PCIE_LINK          (0x00000008)
+#define PPC_INDIRECT_TYPE_BIG_ENDIAN            (0x00000010)
         u32 indirect_type;
 
         /* Currently, we limit ourselves to 1 IO range and 3 mem
@@ -88,7 +90,7 @@ extern int early_find_capability(struct pci_controller *hose, int bus,
                                  int dev_fn, int cap);
 
 extern void setup_indirect_pci(struct pci_controller* hose,
-                               u32 cfg_addr, u32 cfg_data);
+                               u32 cfg_addr, u32 cfg_data, u32 flags);
 extern void setup_grackle(struct pci_controller *hose);
 
 #else