X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fiomap.c;h=5e74390852b0dfc1d7d48ef42158160f7ea9a89c;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=d30ff1a8edee2737638e77ae32d2dc32f06d45c9;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git

diff --git a/lib/iomap.c b/lib/iomap.c
index d30ff1a8e..5e7439085 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -1,5 +1,7 @@
 /*
  * Implement the default iomap interfaces
+ *
+ * (C) Copyright 2004 Linus Torvalds
  */
 #include <linux/pci.h>
 #include <linux/module.h>
@@ -17,7 +19,10 @@
  *
  * Architectures for which this is not true can't use this generic
  * implementation and should do their own copy.
- *
+ */
+
+#ifndef HAVE_ARCH_PIO_SIZE
+/*
  * We encode the physical PIO addresses (0-0xffff) into the
  * pointer by offsetting them with a constant (0x10000) and
  * assuming that all the low addresses are always PIO. That means
@@ -27,6 +32,7 @@
 #define PIO_OFFSET	0x10000UL
 #define PIO_MASK	0x0ffffUL
 #define PIO_RESERVED	0x40000UL
+#endif
 
 /*
  * Ugly macros are a way of life.