powerpc/pci: Cleanup some minor cruft

* Removed building setup-irq on ppc32, we don't use it anymore
* Remove duplicate prototype for setup_grackle() code that needs it
  gets it from <asm/grackle.h>
* Removed gratuitous pci_io_size type differences between ppc32/ppc64

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

arch/powerpc/include/asm/pci-bridge.h

@@ -86,17 +86,12 @@ struct pci_controller {
 	void *io_base_alloc;
 #endif
 	resource_size_t io_base_phys;
-#ifndef CONFIG_PPC64
 	resource_size_t pci_io_size;
-#endif
 
 	/* Some machines (PReP) have a non 1:1 mapping of
 	 * the PCI memory space in the CPU bus space
 	 */
 	resource_size_t pci_mem_offset;
-#ifdef CONFIG_PPC64
-	unsigned long pci_io_size;
-#endif
 
 	/* Some machines have a special region to forward the ISA
 	 * "memory" cycles such as VGA memory regions. Left to 0
@@ -187,7 +182,6 @@ extern int early_find_capability(struct pci_controller *hose, int bus,
 extern void setup_indirect_pci(struct pci_controller* hose,
 			       resource_size_t cfg_addr,
 			       resource_size_t cfg_data, u32 flags);
-extern void setup_grackle(struct pci_controller *hose);
 #else	/* CONFIG_PPC64 */
 
 /*

arch/powerpc/kernel/pci_32.c

@@ -447,14 +447,6 @@ static int __init pcibios_init(void)
 
 subsys_initcall(pcibios_init);
 
-/* the next one is stolen from the alpha port... */
-void __init
-pcibios_update_irq(struct pci_dev *dev, int irq)
-{
-	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
-	/* XXX FIXME - update OF device tree node interrupt property */
-}
-
 static struct pci_controller*
 pci_bus_to_hose(int bus)
 {

drivers/pci/Makefile

@@ -39,7 +39,6 @@ obj-$(CONFIG_ALPHA) += setup-bus.o setup-irq.o
 obj-$(CONFIG_ARM) += setup-bus.o setup-irq.o
 obj-$(CONFIG_PARISC) += setup-bus.o
 obj-$(CONFIG_SUPERH) += setup-bus.o setup-irq.o
-obj-$(CONFIG_PPC32) += setup-irq.o
 obj-$(CONFIG_PPC) += setup-bus.o
 obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o
 obj-$(CONFIG_X86_VISWS) += setup-irq.o