microblaze: Added more support for PCI
In order to use an off the shelf nic, like the intel pro card,
changes are needed to support pci dma interfaces and other
small changes.
Signed-off-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index e4a7974..4fbfdc1 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -35,6 +35,10 @@
#define IO_SPACE_LIMIT (0xFFFFFFFF)
+/* the following is needed to support PCI with some drivers */
+
+#define mmiowb()
+
static inline unsigned char __raw_readb(const volatile void __iomem *addr)
{
return *(volatile unsigned char __force *)addr;
