[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>

4 files changed, 17 insertions, 16 deletions

diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index c6a30f9c2073..d7747e05d1da 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -185,7 +185,8 @@ int __init fsl_add_bridge(struct device_node *dev, int is_primary)
         hose->first_busno = bus_range ? bus_range[0] : 0x0;
         hose->last_busno = bus_range ? bus_range[1] : 0xff;
 
-        setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4);
+        setup_indirect_pci(hose, rsrc.start, rsrc.start + 0x4,
+                PPC_INDIRECT_TYPE_BIG_ENDIAN);
         setup_pci_cmd(hose);
 
         /* check PCI express link status */
diff --git a/arch/powerpc/sysdev/grackle.c b/arch/powerpc/sysdev/grackle.c
index 42053625f498..11ad5622eb76 100644
--- a/arch/powerpc/sysdev/grackle.c
+++ b/arch/powerpc/sysdev/grackle.c
@@ -55,7 +55,7 @@ static inline void grackle_set_loop_snoop(struct pci_controller *bp, int enable)
 
 void __init setup_grackle(struct pci_controller *hose)
 {
-        setup_indirect_pci(hose, 0xfec00000, 0xfee00000);
+        setup_indirect_pci(hose, 0xfec00000, 0xfee00000, 0);
         if (machine_is_compatible("PowerMac1,1"))
                 pci_assign_all_buses = 1;
         if (machine_is_compatible("AAPL,PowerBook1998"))
diff --git a/arch/powerpc/sysdev/indirect_pci.c b/arch/powerpc/sysdev/indirect_pci.c
index ad341f5ff94f..a8ac2dfdd3d4 100644
--- a/arch/powerpc/sysdev/indirect_pci.c
+++ b/arch/powerpc/sysdev/indirect_pci.c
@@ -20,12 +20,6 @@
 #include <asm/pci-bridge.h>
 #include <asm/machdep.h>
 
-#ifdef CONFIG_PPC_INDIRECT_PCI_BE
-#define PCI_CFG_OUT out_be32
-#else
-#define PCI_CFG_OUT out_le32
-#endif
-
 static int
 indirect_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
                      int len, u32 *val)
@@ -58,9 +52,12 @@ indirect_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
         else
                 reg = offset & 0xfc;
 
-        PCI_CFG_OUT(hose->cfg_addr,
-                 (0x80000000 | (bus_no << 16)
-                  | (devfn << 8) | reg | cfg_type));
+        if (hose->indirect_type & PPC_INDIRECT_TYPE_BIG_ENDIAN)
+                out_be32(hose->cfg_addr, (0x80000000 | (bus_no << 16) |
+                         (devfn << 8) | reg | cfg_type));
+        else
+                out_le32(hose->cfg_addr, (0x80000000 | (bus_no << 16) |
+                         (devfn << 8) | reg | cfg_type));
 
         /*
          * Note: the caller has already checked that offset is
@@ -113,9 +110,12 @@ indirect_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
         else
                 reg = offset & 0xfc;
 
-        PCI_CFG_OUT(hose->cfg_addr,
-                 (0x80000000 | (bus_no << 16)
-                  | (devfn << 8) | reg | cfg_type));
+        if (hose->indirect_type & PPC_INDIRECT_TYPE_BIG_ENDIAN)
+                out_be32(hose->cfg_addr, (0x80000000 | (bus_no << 16) |
+                         (devfn << 8) | reg | cfg_type));
+        else
+                out_le32(hose->cfg_addr, (0x80000000 | (bus_no << 16) |
+                         (devfn << 8) | reg | cfg_type));
 
         /* surpress setting of PCI_PRIMARY_BUS */
         if (hose->indirect_type & PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS)
@@ -149,7 +149,7 @@ static struct pci_ops indirect_pci_ops =
 };
 
 void __init
-setup_indirect_pci(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data)
+setup_indirect_pci(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data, u32 flags)
 {
         unsigned long base = cfg_addr & PAGE_MASK;
         void __iomem *mbase;
diff --git a/arch/powerpc/sysdev/mv64x60_pci.c b/arch/powerpc/sysdev/mv64x60_pci.c
index 45db86c2363c..9b3baa7317d7 100644
--- a/arch/powerpc/sysdev/mv64x60_pci.c
+++ b/arch/powerpc/sysdev/mv64x60_pci.c
@@ -144,7 +144,7 @@ static int __init mv64x60_add_bridge(struct device_node *dev)
         hose->first_busno = bus_range ? bus_range[0] : 0;
         hose->last_busno = bus_range ? bus_range[1] : 0xff;
 
-        setup_indirect_pci(hose, rsrc.start, rsrc.start + 4);
+        setup_indirect_pci(hose, rsrc.start, rsrc.start + 4, 0);
         hose->self_busno = hose->first_busno;
 
         printk(KERN_INFO "Found MV64x60 PCI host bridge at 0x%016llx. "