[ARM] iop: iop3xx needs registers mapped uncached+unbuffered

Mikael Pettersson reported:

   The 2.6.28-rc kernels fail to detect PCI device 0000:00:01.0
   (the first ethernet port) on my Thecus n2100 XScale box.

   There is however still a strange "ghost" device that gets partially
   detected in 2.6.28-rc2 vanilla.

The IOP321 manual says:

  The user designates the memory region containing the OCCDR as
  non-cacheable and non-bufferable from the IntelR XScaleTM core.
  This guarantees that all load/stores to the OCCDR are only of
  DWORD quantities.

Ensure that the OCCDR is so mapped.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 7 insertions, 6 deletions

diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
index cb1139ac1943..39d949b63e80 100644
--- a/arch/arm/include/asm/mach/map.h
+++ b/arch/arm/include/asm/mach/map.h
@@ -19,12 +19,13 @@ struct map_desc {
 };
 
 /* types 0-3 are defined in asm/io.h */
-#define MT_CACHECLEAN           4
-#define MT_MINICLEAN            5
-#define MT_LOW_VECTORS          6
-#define MT_HIGH_VECTORS         7
-#define MT_MEMORY               8
-#define MT_ROM                  9
+#define MT_UNCACHED             4
+#define MT_CACHECLEAN           5
+#define MT_MINICLEAN            6
+#define MT_LOW_VECTORS          7
+#define MT_HIGH_VECTORS         8
+#define MT_MEMORY               9
+#define MT_ROM                  10
 
 #ifdef CONFIG_MMU
 extern void iotable_init(struct map_desc *, int);