m68k: common PCI support definitions and code

Basic set of definitions and support code required to turn on CONFIG_PCI
for the m68k architecture. Nothing specific to any PCI implementation in
any m68k class CPU hardware yet.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

arch/m68k/include/asm/dma.h

@@ -488,6 +488,10 @@ static __inline__ int get_dma_residue(unsigned int dmanr)
 extern int request_dma(unsigned int dmanr, const char * device_id);	/* reserve a DMA channel */
 extern void free_dma(unsigned int dmanr);	/* release it again */
 
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
 #define isa_dma_bridge_buggy    (0)
+#endif
 
 #endif /* _M68K_DMA_H */

arch/m68k/include/asm/io_mm.h

@@ -340,4 +340,6 @@ static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int
  */
 #define xlate_dev_kmem_ptr(p)	p
 
+#define ioport_map(port, nr)	((void __iomem *)(port))
+
 #endif /* _IO_H */

arch/m68k/include/asm/pci.h

@@ -2,6 +2,7 @@
 #define _ASM_M68K_PCI_H
 
 #include <asm-generic/pci-dma-compat.h>
+#include <asm-generic/pci.h>
 
 /* The PCI address space does equal the physical memory
  * address space.  The networking and block device layers use
@@ -9,4 +10,9 @@
  */
 #define PCI_DMA_BUS_IS_PHYS	(1)
 
+#define	pcibios_assign_all_busses()	1
+
+#define	PCIBIOS_MIN_IO		0x00000100
+#define	PCIBIOS_MIN_MEM		0x02000000
+
 #endif /* _ASM_M68K_PCI_H */