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>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/dma.h b/arch/m68k/include/asm/dma.h
index 947064184639..0ff3fc6a6d9a 100644
--- a/arch/m68k/include/asm/dma.h
+++ b/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 */