ti-processor-sdk-linux/arch/powerpc/include/asm/isa-bridge.h

#ifndef __ISA_BRIDGE_H
#define __ISA_BRIDGE_H

#ifdef CONFIG_PPC64

extern void isa_bridge_find_early(struct pci_controller *hose);

static inline int isa_vaddr_is_ioport(void __iomem *address)
{
	/* Check if address hits the reserved legacy IO range */
	unsigned long ea = (unsigned long)address;
	return ea >= ISA_IO_BASE && ea < ISA_IO_END;
}

#else

static inline int isa_vaddr_is_ioport(void __iomem *address)
{
	/* No specific ISA handling on ppc32 at this stage, it
	 * all goes through PCI
	 */
	return 0;
}

#endif

#endif /* __ISA_BRIDGE_H */