[MIPS] IP32: Enable PCI bridges

Fixe MACE PCI addressing by adding the bus number parameter.
Remove check of the used slot since every slot should be valid.
Converted mkaddr from #define to inline function.

Signed-off-by: Giuseppe Sacco <eppesuig@debian.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 9 insertions, 12 deletions

diff --git a/arch/mips/pci/ops-mace.c b/arch/mips/pci/ops-mace.c
index 8008e31c5e81..2025f1f3e9f5 100644
--- a/arch/mips/pci/ops-mace.c
+++ b/arch/mips/pci/ops-mace.c
@@ -29,22 +29,20 @@
  * 4  N/C
  */
 
-#define chkslot(_bus,_devfn)                                    \
-do {                                                            \
-        if ((_bus)->number > 0 || PCI_SLOT (_devfn) < 1 \
-            || PCI_SLOT (_devfn) > 3)                           \
-                return PCIBIOS_DEVICE_NOT_FOUND;                \
-} while (0)
+static inline int mkaddr(struct pci_bus *bus, unsigned int devfn,
+        unsigned int reg)
+{
+        return ((bus->number & 0xff) << 16) |
+                (devfn & 0xff) << 8) |
+                (reg & 0xfc);
+}
 
-#define mkaddr(_devfn, _reg) \
-((((_devfn) & 0xffUL) << 8) | ((_reg) & 0xfcUL))
 
 static int
 mace_pci_read_config(struct pci_bus *bus, unsigned int devfn,
                      int reg, int size, u32 *val)
 {
-        chkslot(bus, devfn);
-        mace->pci.config_addr = mkaddr(devfn, reg);
+        mace->pci.config_addr = mkaddr(bus, devfn, reg);
         switch (size) {
         case 1:
                 *val = mace->pci.config_data.b[(reg & 3) ^ 3];
@@ -66,8 +64,7 @@ static int
 mace_pci_write_config(struct pci_bus *bus, unsigned int devfn,
                       int reg, int size, u32 val)
 {
-        chkslot(bus, devfn);
-        mace->pci.config_addr = mkaddr(devfn, reg);
+        mace->pci.config_addr = mkaddr(bus, devfn, reg);
         switch (size) {
         case 1:
                 mace->pci.config_data.b[(reg & 3) ^ 3] = val;