ColdFire: Fix missing _IO_BASE which caused compile error
The compile error was caused by a recent patch. Affected platforms -
M5253DEMO.h, M5253EVBE.h, and M54455EVB.h. Adding the _IO_BASE
automatically defined to 0 in asm-m68k/io.h if it isn't set in
platform configuration file.
Signed-off-by: TsiChung Liew <tsicliew@gmail.com>
diff --git a/include/asm-m68k/io.h b/include/asm-m68k/io.h
index 50ea087..531f420 100644
--- a/include/asm-m68k/io.h
+++ b/include/asm-m68k/io.h
@@ -28,6 +28,10 @@
#include <asm/byteorder.h>
+#ifndef _IO_BASE
+#define _IO_BASE 0
+#endif
+
#define __raw_readb(addr) (*(volatile u8 *)(addr))
#define __raw_readw(addr) (*(volatile u16 *)(addr))
#define __raw_readl(addr) (*(volatile u32 *)(addr))